WO2024160104A1 - 外科器械 - Google Patents
外科器械 Download PDFInfo
- Publication number
- WO2024160104A1 WO2024160104A1 PCT/CN2024/073817 CN2024073817W WO2024160104A1 WO 2024160104 A1 WO2024160104 A1 WO 2024160104A1 CN 2024073817 W CN2024073817 W CN 2024073817W WO 2024160104 A1 WO2024160104 A1 WO 2024160104A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connecting rod
- assembly
- handle
- cutting knife
- link
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00407—Ratchet means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07285—Stapler heads characterised by its cutter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/033—Abutting means, stops, e.g. abutting on tissue or skin
- A61B2090/034—Abutting means, stops, e.g. abutting on tissue or skin abutting on parts of the device itself
Definitions
- Embodiments of the present disclosure relate to a surgical instrument.
- Surgical cutting staplers are commonly used medical instruments to replace manual suturing. Their main working principle is to use a cutting knife to separate tissues and titanium staples to staple them, similar to a stapler. There are many types of staplers according to their application to different parts of the body. For surgical cutting staplers, their working principle is to enter the patient's body through the cannula of the puncture device that is precisely positioned at the surgical site, and then make a longitudinal incision in the tissue and apply staples on the opposite side of the incision, thereby separating and staple the tissues.
- the surgical instrument includes a jaw assembly, a cutting knife assembly and an operating assembly.
- the operating assembly is connected to the jaw assembly and the cutting knife assembly.
- medical staff operate the operating assembly, first closing the jaw assembly to squeeze the patient's tissue, and the cutting knife assembly can advance to cut the tissue, while firing the staples in the staple magazine to suture.
- the embodiments of the present disclosure provide a surgical instrument that can control the closing of the jaws and the advancement (firing) of the cutting knife through a single handle, has a simple structure, is easy to operate, and has convenient and stable locking.
- the embodiment of the present disclosure provides a surgical instrument, comprising: an operating assembly, a jaw assembly connected to the operating assembly, and a cutting knife assembly, wherein the operating assembly comprises: a frame; a handle rotatably connected to the frame, which is operated to perform a first actuation and a subsequent actuation; a connecting rod assembly, comprising a first connecting rod and a second connecting rod, wherein the first connecting rod is connected to the jaw assembly, and one end of the second connecting rod is rotatable The first end of the connecting rod assembly is connected to the frame, and the other end is rotatably connected to the first connecting rod; in response to the first actuation of the handle, the connecting rod assembly switches from the first position to the second position to drive the jaw assembly to close; when the connecting rod assembly is in the first position, the first connecting rod and the second connecting rod form an angle with each other, and when the connecting rod assembly is in the second position, the first connecting rod and the second connecting rod are collinear or substantially collinear, so that the connecting rod assembly is self-
- the handle is provided with a supporting portion; the handle supports the first connecting rod or the second connecting rod through the supporting portion to drive the connecting rod assembly to move, so that the connecting rod assembly switches from the first position to the second position; when the connecting rod assembly is in the second position, the supporting portion is separated from the connecting rod assembly when the handle performs the subsequent actuation.
- the limit member can be movably provided on the frame, and the limit member has a locking position and an unlocking position; the limit member limits the matching member in the locking position to prevent the matching member from cooperating with the cutting knife driving member; in the process of switching from the first position to the second position, the connecting rod assembly drives the limit member to move from the locking position to the unlocking position, and the limit member is located in the unlocking position when the connecting rod assembly is in the second position; in the unlocking position, the limit member releases the limitation on the matching member so that the matching member can cooperate with the cutting knife driving member, and in response to the subsequent actuation of the handle, the matching member drives the cutting knife driving member to move, thereby driving the cutting knife assembly.
- the limiting member when the limiting member is in the locking position, it presses against the matching member to limit the matching member; when the limiting member is in the unlocking position, it is separated from the matching member to release the limitation on the matching member, so that the matching member can cooperate with the cutting knife driving member.
- the limiter includes a main body, a pressing part and a protruding part, the main body is rotatably connected to the frame, the pressing part is connected to the main body, and when the limiter is in the locked position, the pressing part presses the matching part; the protruding part is arranged on the main body, and the connecting rod assembly drives the protruding part to drive the limiter to switch from the locked position to the unlocked position.
- the limiting member is arranged on the first connecting rod or the second connecting rod, and when the connecting rod assembly switches from the first position to the second position, the limiting member moves with the connecting rod assembly and switches from the locked position to the unlocked position to release the limitation on the mating member.
- the limiting member includes a main body and a blocking portion, the main body is connected to the first connecting rod or the second connecting rod, the blocking portion is connected to the main body and protrudes in the direction of the mating member, and the blocking portion has a supporting surface; when the limiting member is located in the locking position, the supporting surface supports the mating member to limit the mating member; in the process of the limiting member switching from the locking position to the unlocking position, the supporting surface and the mating member move relative to each other until the mating member is separated from the supporting surface to release the limitation of the mating member.
- the limiting member includes a stop portion.
- the stop portion When the limiting member is in the locking position, the stop portion is located between the mating member and the cutting knife driving member to limit the mating member and separate the cutting knife driving member from the mating member; when the limiting member is in the unlocking position, the stop portion is disengaged from between the mating member and the cutting knife driving member to release the limitation on the mating member, so that the mating member can cooperate with the cutting knife driving member.
- the stopping portion when the limiting member is located at the locking position, the stopping portion at least abuts against the matching member in the matching member and the cutting blade driving member.
- the limit member also includes a movable part movably arranged on the frame, and the movable part is connected to the stop part.
- the connecting rod assembly drives the jaw assembly to move from an open position to a closed position
- the connecting rod assembly drives the movable part to move
- the movable part drives the stop part to move to disengage from between the mating part and the cutting knife driving member.
- the movable part can be slidably disposed on the frame, and the movable part includes a sliding part and a guiding part, the sliding part is slidably connected to the frame, and the guiding part is connected to the sliding part; in the process where the connecting rod assembly drives the jaw assembly to move from an open position to a closed position, the connecting rod assembly resists and pushes the guiding part to drive the movable part to move.
- the mating piece includes an extending protrusion, and when the connecting rod assembly is located at the first position, the limiting piece acts on the extending protrusion to limit the mating portion; when the connecting rod assembly is located at the second position, the limiting piece is separated from the extending protrusion to release the limitation on the mating piece.
- the matching piece is movably connected to the handle, an elastic piece is provided between the handle and the matching piece, and the matching piece drives the cutting knife toward the cutting knife under the elastic force provided by the elastic piece. Moving parts movement.
- the cutting knife driving member is a toothed member
- the matching member is a pawl rotatably connected to the handle
- the elastic member is a torsion spring
- the matching member moves toward the cutting knife driving member under the elastic force provided by the torsion spring.
- an embodiment of the present disclosure provides a surgical instrument that can control the closing of the jaws and the advancement (firing) of the cutting knife through a single handle. It has a simple structure, is easy to operate, and the handle will not get stuck, and has high stability.
- the embodiment of the present disclosure provides a surgical instrument, comprising: an operating assembly connected to a jaw assembly and a cutting knife assembly, wherein the operating assembly comprises: a handle, which can be operated for a first actuation and subsequent actuations; a closing mechanism connected to the jaw assembly; a cutting knife driving member connected to the cutting knife assembly; a matching member connected to the handle; a limiting member having a locking position and an unlocking position, wherein in the locking position, the limiting member limits the matching member to prevent the matching member from matching with the cutting knife driving member; in response to the first actuation of the handle, the closing mechanism drives the jaw assembly to switch from an open position to a closed position and keeps the jaw assembly in the closed position, and drives the limiting member to switch from the locking position to the unlocking position; when the jaw assembly is in the closed position, the limiting member is in the unlocking position; when the limiting member is in the unlocking position, the limiting member releases the limiting member on the matching member so that the matching member can match with the cutting knife driving member,
- the limiting member when the limiting member is in the locking position, it presses against the matching member to limit the matching member; when the limiting member is in the unlocking position, it is separated from the matching member to release the limitation on the matching member, so that the matching member can cooperate with the cutting knife driving member.
- the operating assembly further includes a frame, the limiting member is movably disposed on the frame, and when the limiting member is switched from the locking position to the unlocking position, the limiting member moves to be separated from the matching member.
- the limiting member includes a main body, a pressing portion and a protruding portion, the main body is rotatably arranged on the frame, the pressing portion is connected to the main body, and when the limiting member is in the locked position, the pressing portion presses the mating member; the protruding portion is arranged on the main body, and the closing mechanism abuts against the protruding portion to drive the protruding portion and then drive the limiting member to switch from the locked position to the unlocked position.
- the limit member includes a stop portion.
- the stop portion When the limit member is in the locking position, the stop portion is located between the mating member and the cutting knife driving member to limit the mating member and separate the cutting knife driving member from the mating member; when the limit member is in the unlocking position, the stop portion is disengaged from between the mating member and the cutting knife driving member to release the limitation on the mating member, so that the mating member can cooperate with the cutting knife driving member.
- the stopping portion when the limiting member is located at the locking position, the stopping portion at least abuts against the matching member in the matching member and the cutting blade driving member.
- the operating component also includes a frame
- the limiting member also includes a movable portion movably arranged on the frame, and the movable portion is connected to the stop portion.
- the closing mechanism drives the movable portion to move, and the movable portion drives the stop portion to move to disengage from between the mating member and the cutting knife driving member.
- the movable part can be slidably disposed on the frame, and the movable part includes a sliding part and a guiding part, the sliding part is slidably connected to the frame, and the guiding part is connected to the sliding part; in the process where the closing mechanism drives the jaw assembly to switch from the open position to the closed position, the closing mechanism resists and pushes the guiding part to drive the movable part to move.
- the matching piece is movably connected to the handle, an elastic piece is provided between the handle and the matching piece, and the matching piece moves toward the cutting knife driving piece under the action of the elastic force provided by the elastic piece.
- the cutting knife driving member is a toothed member
- the matching member includes a pawl
- the pawl is rotatably connected to the handle
- the elastic member is a torsion spring
- the pawl moves toward the cutting knife driving member under the elastic force provided by the torsion spring.
- the closing mechanism includes a shaft driving member and a shaft assembly, the shaft assembly is connected to the jaw assembly, the shaft driving member is connected to the shaft assembly, and when the handle is actuated for the first time, the handle is operably engaged with the shaft driving member to drive the shaft driving member to switch from a first position to a second position, thereby driving the shaft assembly to move so that the jaw assembly switches from the open position to the closed position; during the process of switching from the first position to the second position, the shaft driving member drives the limit member to switch from the locked position to the unlocked position.
- the closing mechanism further comprises a locking member, and when the shaft driving member is located at the second position, the locking member locks the shaft driving member to keep the jaw assembly in the closed position.
- the locking member includes a pin, which abuts against the shaft driving member when the shaft driving member is located at the second position, blocks the shaft driving member from moving toward the first position, and thereby locks the shaft driving member.
- the shaft driving member includes a connecting rod assembly
- the connecting rod assembly includes a first connecting rod and a second connecting rod
- the first connecting rod is rotatably connected to the shaft assembly
- one end of the second connecting rod is rotatably connected to the first connecting rod
- the other end is rotatably connected to the frame
- the handle contacts the first connecting rod or the second connecting rod, so that the handle drives the connecting rod assembly when it is actuated for the first time, so that the connecting rod assembly switches from the first position to the second position
- the connecting rod assembly is in the second position, the connecting rod assembly is at a dead point or substantially at a dead point, so that the connecting rod assembly is locked in the second position.
- the handle is provided with a supporting portion; the handle supports the first connecting rod or the second connecting rod through the supporting portion to drive the connecting rod assembly to move, so that the connecting rod assembly switches from the first position to the second position; when the connecting rod assembly is in the second position, the supporting portion is separated from the connecting rod assembly when the handle performs the subsequent actuation.
- embodiments of the present disclosure provide a surgical instrument that improves the stability of jaw assembly closure and tissue compression.
- An embodiment of the present disclosure provides a surgical instrument, comprising: an operating assembly, a jaw assembly connected to the operating assembly, the operating assembly comprising: a frame; a handle rotatably connected to the frame, a connecting rod assembly, comprising a left connecting rod and a right connecting rod, the left connecting rod and the right connecting rod are respectively located on both sides of the frame, the left connecting rod is connected to the right connecting rod, the handle is operably engaged with the left connecting rod and/or the right connecting rod to drive the connecting rod assembly to move; in response to the movement of the connecting rod assembly, the jaw assembly moves from an open position to a closed position.
- the left side connecting rod includes a left first connecting rod and a left second connecting rod, the left first connecting rod is connected to the jaw assembly, one end of the left second connecting rod is rotatably connected to the frame, and the other end is rotatably connected to the left first connecting rod;
- the right side connecting rod includes a right first connecting rod and a right second connecting rod, the right first connecting rod is connected to the jaw assembly, one end of the right second connecting rod is rotatably connected to the frame, and the other end is rotatably connected to the right first connecting rod;
- the left second connecting rod is connected to the right second connecting rod.
- the handle can be operated to perform a first actuation and subsequent actuations, and the handle drives the connecting rod assembly to move from a first position to a second position during the first actuation;
- the operating assembly also includes: a cutting knife driving member connected to the cutting knife assembly; a mating member connected to the handle; a limiting member, when the connecting rod assembly is in the first position, the limiting member limits the mating member so that the mating member is separated from the cutting knife driving member; when the connecting rod assembly is in the second position, the limiting member releases the limitation on the mating member so that the mating member can cooperate with the cutting knife driving member, and in response to the subsequent actuation of the handle, the mating member drives the cutting knife driving member to move, thereby driving the cutting knife assembly.
- the matching piece is movably connected to the handle, an elastic piece is provided between the handle and the matching piece, and the matching piece moves toward the cutting knife driving piece under the action of the elastic force provided by the elastic piece.
- the cutting knife driving member is a toothed member
- the matching member includes a pawl
- the pawl is rotatably connected to the handle
- the elastic member is a torsion spring
- the pawl moves toward the cutting knife driving member under the elastic force provided by the torsion spring.
- the limit member can be movably provided on the frame; the limit member limits the matching member in the locking position to prevent the matching member from matching with the cutting knife driving member; in the process of switching from the first position to the second position, the connecting rod assembly drives the limit member to move from the locking position to the unlocking position, and the limit member is located in the unlocking position when the connecting rod assembly is in the second position; in the unlocking position, the limit member releases the limitation on the matching member so that the matching member can match with the cutting knife driving member, and in response to the subsequent actuation of the handle, the matching member drives the cutting knife driving member to move, thereby driving the cutting knife assembly.
- the limiting member includes a main body, a pressing portion and a protruding portion, the main body is rotatably arranged on the frame, the pressing portion is connected to the main body, and when the limiting member is in the locked position, the pressing portion presses the mating member; the protruding portion is arranged on the main body, and the closing mechanism abuts against the protruding portion to drive the protruding portion and then drive the limiting member to switch from the locked position to the unlocked position.
- the limiting member includes a stopper, and when the limiting member is in the locking position, the stopper is located between the matching member and the cutting blade driving member to limit the matching member.
- the cutting knife driving member is separated from the matching member; when the limiting member is in the unlocking position, the stopper is disengaged from between the matching member and the cutting knife driving member to release the limiting of the matching member, so that the matching member can cooperate with the cutting knife driving member.
- the stopping portion when the limiting member is located at the locking position, the stopping portion at least abuts against the matching member in the matching member and the cutting blade driving member.
- the limit member also includes a moving part movably arranged on the frame, and the moving part is connected to the stop part.
- the closing mechanism drives the jaw assembly to switch from an open position to a closed position
- the closing mechanism drives the moving part to move
- the moving part drives the stop part to move to disengage from between the mating part and the cutting knife driving member.
- the movable part can be slidably disposed on the frame, and the movable part includes a sliding part and a guiding part, the sliding part is slidably connected to the frame, and the guiding part is connected to the sliding part; in the process where the closing mechanism drives the jaw assembly to switch from the open position to the closed position, the closing mechanism resists and pushes the guiding part to drive the movable part to move.
- the limit member is arranged on the left connecting rod or the right connecting rod, and when the connecting rod assembly switches from the first position to the second position, the limit member moves with the connecting rod assembly and switches from the locked position to the unlocked position to release the limitation on the mating member.
- the connecting rod assembly further includes a connecting portion, one end of which is rotatably connected to the left second connecting rod, and the other end of which is rotatably connected to the right second connecting rod.
- the connecting part includes: a splint, a left hinge part and a right hinge part, the splint is connected to the frame, the left hinge part and the right hinge part are respectively arranged on both sides of the splint, the left hinge part is rotatably connected to the left second connecting rod, and the right hinge part is rotatably connected to the right second connecting rod.
- the left first link includes a left first hinge hole and a left middle hinge hole, the left first link is rotatably connected to the jaw assembly through the left first hinge hole, and the left first link is rotatably connected to the left second link through the left middle hinge hole;
- the right first link includes a right first hinge hole and a right middle hinge hole, the right first link is rotatably connected to the jaw assembly through the right first hinge hole, and the right first link is rotatably connected to the right second link through the right middle hinge hole;
- the left first hinge hole is coaxially arranged with the right first hinge hole
- the left middle hinge hole is coaxially arranged with the right middle hinge hole.
- the operating assembly further comprises an outer sleeve, which is connected to the jaw assembly.
- the left first connecting rod and the right first connecting rod are both rotatably connected to the outer sleeve.
- the handle includes a handle body and a supporting portion connected to the handle body, and the supporting portion supports the left connecting rod and/or the right connecting rod so that the handle is operably engaged with the left connecting rod and/or the right connecting rod.
- FIG1 is a schematic structural diagram of a surgical instrument provided in an embodiment of the present disclosure.
- FIG2 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure before first actuation
- FIG3 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure after first actuation
- FIG4 is a schematic structural diagram of another protrusion of a surgical instrument provided by an embodiment of the present disclosure when in contact with a connecting rod assembly;
- FIG5 is a schematic structural diagram of another protrusion of the surgical instrument provided by an embodiment of the present disclosure when the connecting rod assembly is in the second position;
- FIG6a is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure when the limiting portion is in a locked position;
- FIG6b is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure when the limiting portion is in a locked position;
- FIG6c is a partial schematic diagram of point A in FIG6b;
- FIG7 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure when the limiting portion is in an unlocked position;
- FIG8 is a schematic structural diagram of a matching piece of a surgical instrument provided in an embodiment of the present disclosure.
- FIG9 is a schematic structural diagram of the cooperation between the matching member of the surgical instrument and the cutting knife driving member provided by an embodiment of the present disclosure
- FIG10 is a schematic structural diagram of a handle of a surgical instrument provided in an embodiment of the present disclosure that subsequently actuates and drives a cutting knife assembly;
- FIG11 is a schematic structural diagram of a cutting knife assembly and a cutting knife driving member of a surgical instrument provided in an embodiment of the present disclosure
- FIG12 is a schematic structural diagram of a ratchet and a handle of a surgical instrument provided in an embodiment of the present disclosure
- FIG13 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure in which a pawl is not engaged with a cutting knife drive member;
- FIG. 14 is a schematic structural diagram of another stopper of a surgical instrument provided in an embodiment of the present disclosure.
- FIG. 15 is a schematic structural diagram of a stopper of a surgical instrument provided by an embodiment of the present disclosure from another angle;
- FIG16 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure when the limiting member is in a locked position;
- FIG17 is a cross-sectional view of the surgical instrument when the stopper provided by the embodiment of the present disclosure is in a locked position
- FIG. 18 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure when a stopper moves to an unlocked position;
- FIG19 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure when the limiting member is in an unlocked position;
- FIG. 20 is a cross-sectional view of the surgical instrument when the stopper of the surgical instrument provided by the embodiment of the present disclosure is located in the unlocked position;
- FIG. 21 is a schematic structural diagram of yet another stopper of a surgical instrument provided in an embodiment of the present disclosure.
- FIG. 22 is a schematic structural diagram of a surgical instrument when a stopper provided by an embodiment of the present disclosure is located in a locked position;
- FIG23 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure when a limiting member is switched to an unlocked position;
- FIG. 24 is a schematic structural diagram of a surgical instrument when a stopper provided by an embodiment of the present disclosure is located in an unlocked position;
- FIG. 25 is a schematic structural diagram of a locking member of a surgical instrument provided in an embodiment of the present disclosure without locking a connecting rod assembly;
- FIG. 26 is a schematic structural diagram of a locking member locking link assembly of a surgical instrument provided in an embodiment of the present disclosure
- FIG. 27 is a schematic structural diagram of a connecting rod assembly and a locking member of a surgical instrument provided in an embodiment of the present disclosure
- FIG. 28 is a diagram of the structure of the connecting rod assembly of the surgical instrument provided by the embodiment of the present disclosure when in contact with the locking member. Schematic diagram;
- FIG. 29 is a schematic structural diagram of a connecting rod assembly of a surgical instrument provided by an embodiment of the present disclosure after passing through a locking member;
- FIG30 is a schematic structural diagram of a handle of a surgical instrument provided in an embodiment of the present disclosure.
- FIG31 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure.
- FIG32 is a schematic structural diagram of a connecting rod assembly of a surgical instrument provided in an embodiment of the present disclosure
- FIG33 is a schematic structural diagram of a left connecting rod and a right connecting rod of a surgical instrument provided by an embodiment of the present disclosure
- FIG34 is a top view of a connecting rod assembly of a surgical instrument provided in an embodiment of the present disclosure.
- FIG35 is a schematic structural diagram of a connecting member and a connecting rod assembly of a surgical instrument provided by an embodiment of the present disclosure
- FIG36 is a partial schematic diagram of point A in FIG35;
- Fig. 37 is a cross-sectional view of the section A-A' in Fig. 32;
- FIG38 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure before first actuation
- FIG. 39 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure after first actuation.
- proximal and distal used in this article are relative to the clinician who manipulates the handle of the stapler.
- proximal refers to the part close to the clinician
- distal refers to the part away from the clinician. That is, the handle is the proximal side
- the jaw assembly is the distal side.
- the proximal end of a component represents the end relatively close to the handle
- the distal end represents the end relatively close to the jaw assembly.
- upper and “lower” are based on the relative positions of the anvil and the staple magazine seat of the jaw assembly. Specifically, the anvil is at the “upper” and the staple magazine seat is at the “lower”.
- the stapler can be used in many directions and positions. Therefore, these terms expressing relative positional relationships are not limited and absolute.
- connection should be understood in a broad sense.
- it can be a fixed connection, a detachable connection, a movably connection, or an integral body; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements such as abutment.
- the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
- qualifiers before “connected” and “connection” they have the meaning defined by the corresponding qualifiers, and only exclude situations that obviously need to be excluded, and do not exclude other possible situations.
- detachably connected refers to a detachable connection, and does not include integration, but movable connection, etc. are not excluded.
- the operating assembly is generally provided with two handles, which respectively control the closing of the jaws and the feeding of the cutting knife, and the structure is complex and the operation is cumbersome.
- a stapler with a single handle that can control the closing of the jaws and the advancement of the cutting knife, including a handle, a cam, a connecting rod, a rack and a ratchet assembly.
- the handle is connected to the cam.
- the ratchet assembly and the handle, and the ratchet assembly and the rack are separated.
- the cam rotates to drive the connecting rod to move to close the jaws.
- the cam rotates, it is locked by the spring mechanism.
- the cam rotates to give way to move the ratchet assembly.
- the ratchet assembly after moving is engaged with the handle and the rack at the same time, so that the handle can drive the jaw rack during subsequent actuation, and then drive the cutting knife.
- the locking structure of the cam through the spring assembly is complex, and the locking stability is poor, which is prone to locking errors, causing the jaws to reopen.
- the embodiment of the present disclosure provides a surgical instrument, which may be a stapler, including an operating assembly and a jaw assembly and a cutting knife assembly connected to the operating assembly, wherein the operating assembly includes a closing mechanism, a handle, a cutting knife driving member, a matching member, and a limiting member, wherein the closing mechanism is connected to the jaw assembly, the cutting knife driving member is connected to the cutting knife assembly, and the matching member is connected to the handle and is used to match the cutting knife driving member.
- the handle can be operated to perform a first actuation and a subsequent actuation, wherein the first actuation of the handle causes the closing mechanism to drive the jaw assembly to switch from an open position to a closed position, and the subsequent actuation is performed after the first actuation, and during the subsequent actuation, the cutting knife assembly is driven forward to fire.
- the closing mechanism includes a connecting rod assembly.
- the connecting rod assembly includes a first connecting rod and a second connecting rod.
- the first connecting rod is connected to the jaw assembly.
- One end of the second connecting rod is rotatably connected to the frame, and the other end is rotatably connected to the first connecting rod.
- the connecting rod assembly switches from the first position to the second position to drive the jaw assembly to close.
- the connecting rod assembly is in the first position
- the first connecting rod and the second connecting rod are at an angle to each other.
- the connecting rod assembly is in the second position, the first connecting rod and the second connecting rod are collinear or substantially collinear, so that the connecting rod assembly is self-locked in the second position.
- the limiter has a locking position and an unlocking position. In the locking position, the limiter limits the mating part to prevent the mating part from cooperating with the cutting blade drive part. Limitation means that the limiter applies a force to the mating part to prevent the mating part from cooperating with the cutting blade assembly. In the unlocking position, the limiter releases the limit on the mating part, specifically, no longer applies a force to the mating part, so that the mating part can cooperate with the cutting blade assembly.
- the jaw assembly Before the first actuation, the jaw assembly is in the open position and the limit member is in the locked position.
- the closing mechanism drives the jaw assembly to switch from the open position to the closed position and keeps the jaw assembly in the closed position, thereby achieving the closure of the jaw assembly and maintaining the squeezing.
- the closing mechanism drives the limit member to switch from the locked position to the unlocked position.
- the limiter is in the locked position, and the mating piece does not cooperate with the cutting knife driving piece, so the first actuation of the handle can only drive the jaw assembly to close, and cannot drive the cutting knife to advance.
- the limiter is in the unlocked position, and the mating piece can cooperate with the cutting knife driving piece.
- the mating piece and the cutting knife driving piece can drive the cutting knife assembly to advance for firing.
- the cutting knife assembly is driven to advance through the matching piece and the cutting knife driving piece for firing.
- the handle does not act on the closing mechanism, the jaw assembly remains in the closed position, and the limiter remains in the unlocked position.
- the surgical instrument provided in the embodiment of the present disclosure is only provided with a handle.
- the handle closes the jaw assembly for squeezing during the first actuation, and the subsequent actuation causes the cutting knife to advance for firing.
- the overall structure is simple and easy to operate.
- An embodiment of the present disclosure provides a surgical instrument, which may be a stapler, as shown in FIG. 1 and FIG. 11 .
- the invention comprises an operating assembly 400, a jaw assembly 300 and a cutting knife assembly 630 connected to the operating assembly 400.
- the jaw assembly 300 comprises a staple cartridge seat 310 and an anvil seat 320.
- a staple cartridge assembly (not shown in the figure) is detachably mounted in the staple cartridge seat 310.
- the anvil seat 320 is rotatably connected to the staple cartridge seat 310. The rotation of the anvil seat 320 enables the jaw assembly 300 to have an open position and a closed position.
- the jaw assembly 300 can switch between the open position and the closed position.
- tissue can enter the jaw assembly 300.
- the jaw assembly 300 is in the closed position, the tissue can be squeezed.
- the cutting knife assembly 630 advances to cut the tissue, and the staple cartridge assembly takes out the staples to suture the cut tissue.
- the operating assembly 400 includes a frame 410, a handle 100, a closing mechanism 200, a cutting knife driving member 600, a matching member 610 and a stopper 700.
- the handle 100 is rotatably arranged on the frame 410, and an elastic member is arranged between the handle 100 and the frame 410, which has an initial position and a pressing position.
- the medical staff can press the handle 100 to move the handle 100 from the initial position to the pressing position.
- the handle 100 can rebound from the pressing position to the initial position under the action of the elastic member.
- the process of the handle 100 moving from the initial position to the pressing position is called actuation.
- the handle 100 is operated to perform multiple actuations, including the first actuation and subsequent actuations.
- the subsequent actuation is other actuations except the first actuation, wherein the first actuation can drive the jaw assembly 300 to switch to the closed position to squeeze the tissue, and the subsequent actuation can drive the cutting knife assembly 630 forward to fire.
- the closing mechanism 200 includes a connecting rod assembly 211 and a shaft assembly 220, the shaft assembly 220 is connected to the jaw assembly 300, the connecting rod assembly 211 is connected to the shaft assembly 220, and when the handle 100 is actuated for the first time, the handle 100 is operably engaged with the connecting rod assembly 211, so that the handle 100 can drive the connecting rod assembly 211 to move, and the connecting rod assembly 211 can drive the shaft assembly 220 to move when moving, thereby switching the jaw assembly 300 from the open position to the closed position.
- the shaft assembly 220 includes an inner sleeve 222 and an outer sleeve 221, the outer sleeve 221 is sleeved outside the inner sleeve 222, and the outer sleeve 221 can move relative to the inner sleeve 222, one end of the outer sleeve 221 is connected to the connecting rod assembly 211, and the other end of the outer sleeve 221 is connected to the jaw assembly 300.
- the connecting rod assembly 211 switches from the first position to the second position to drive the outer sleeve 221 to move, and the movement of the outer sleeve 221 causes the jaw assembly 300 to switch from the open position to the closed position.
- the connecting rod assembly 211 is locked in the second position, thereby locking the position of the outer sleeve 221, and the jaw assembly 300 is kept closed.
- the connecting rod assembly 211 remains in the second position and does not move with the handle 100, and the outer sleeve 221 also remains in the position that makes the jaw assembly 300 in the closed position.
- the connecting rod assembly 211 includes a first connecting rod 212 and a second connecting rod 213, wherein the first connecting rod 212 is rotatably connected to the shaft assembly 220, specifically connected to the outer sleeve 221; one end of the second connecting rod 213 is rotatably connected to the frame 410, and the other end of the second connecting rod 213 is rotatably connected to the first connecting rod 212, forming a two-link mechanism.
- the first connecting rod 212 is rotatably connected to the shaft assembly 220, specifically connected to the outer sleeve 221
- one end of the second connecting rod 213 is rotatably connected to the frame 410
- the other end of the second connecting rod 213 is rotatably connected to the first connecting rod 212, forming a two-link mechanism.
- the connecting rod assembly 211 is located in the first position, and when the connecting rod assembly 211 is located in the first position, the first connecting rod 212 and the second connecting rod 213 form a certain angle with each other, and the first connecting rod 212 and the second connecting rod 213 are both inclined toward the lower side (the side close to the gripping portion of the handle 100).
- the handle 100 contacts the first link 212 or the second link 213, so that the handle 100 can drive the link assembly 211 to move, for example, the distal end of the first link 212 is rotatably connected to the outer sleeve 221, the proximal end of the first link 212 is rotatably connected to the second link 213, and the first link 212 and the second link 213 are rotatably connected through a hinge point.
- the hinge point gradually moves to the upper side (the side away from the gripping portion of the handle 100), and since the proximal end of the second link 213 is connected to the frame 410, the hinge point at the distal end of the second link 213 moves toward the distal end, and at the same time, the rotation of the first link 212 causes the distal end of the first link 212 to move toward the distal end, so that the link assembly 211 can drive the outer sleeve 221 to move toward the distal end, so that the jaw assembly 300 is closed.
- the connecting rod assembly 211 is located at the second position.
- the first connecting rod 212 and the second connecting rod 213 of the connecting rod assembly 211 are collinear or substantially collinear.
- Collinear means that the first connecting rod 212 and the second connecting rod 213 are located on the same straight line, and the angle between the two is 180°.
- substantially collinear means that the first connecting rod 212 and the second connecting rod 213 pass the dead point position, and the angle between the first connecting rod 212 and the second connecting rod 213 is greater than 0° and less than 5°.
- the pressure angle between the first connecting rod 212 and the second connecting rod 213 is substantially equal to 90°.
- the torque on the other connecting rod is zero, so that the connecting rod assembly 211 cannot move, and the connecting rod assembly 211 is self-locked in the second position.
- the connecting rod assembly 211 self-locks in the second position so that the jaw assembly 300 remains in the closed position, that is, the connecting rod assembly can self-lock after driving the jaw assembly to close, so that the jaw assembly is locked in the closed position.
- the self-locking of the connecting rod assembly 211 does not require operation and does not require the setting of a locking structure, so that the overall structure of the surgical instrument is simple, the locking of the connecting rod assembly 211 is stable, and locking failure is not prone to occur.
- the connecting rod assembly 211 drives the jaw assembly 300 to switch from the open position to the closed position, and keeps the jaw assembly 300 in the closed position to squeeze the tissue and keep the tissue in the squeezed state.
- the connecting rod assembly 211 will not move with the release rebound of the handle 100, and always remains in the state of making the jaw assembly 300 in the closed position.
- the handle 100 is subsequently actuated, it cannot drive the connecting rod assembly 211 to move, nor can it change the state of the jaw assembly 300 in the closed position.
- the cutting knife driving member 600 is connected to the cutting knife assembly 630, and the matching member 610 is connected to the handle 100.
- the matching member 610 cooperates with the cutting knife driving member 600, it can drive the cutting knife driving member 600 under the drive of the handle 100, and then drive the cutting knife assembly 630.
- the limiting member 700 limits the matching member 610 so that the matching member 610 is separated from the cutting knife driving member 600, so that the first actuation of the handle 100 can only drive the jaw assembly 300 to close, and cannot drive the cutting knife assembly 630.
- the limiting member 700 releases the limit on the matching member 610 so that the matching member 610 can cooperate with the cutting knife driving member 600.
- the matching member 610 can cooperate with the cutting knife driving member 600 means that the matching member 610 moves to a position where it cooperates with the cutting knife driving member 600. In one embodiment, the matching member 610 automatically moves to cooperate with the cutting knife driving member 600.
- the surgical instrument provided by the embodiment of the present disclosure is provided with only one handle 100, and the single handle 100 can realize the functions of squeezing and firing.
- the handle 100 can drive the jaw assembly 300 to close for squeezing during the first actuation, and can drive the cutting knife assembly 630 to fire during subsequent actuations, making the structure and operation of the surgical instrument simpler, lighter and less expensive, and improving the stability of the surgical instrument and the convenience of operation for medical staff.
- the surgical instrument provided by the embodiment of the present disclosure has a simple overall structure, high reliability, and convenient operation.
- the handle 100 is provided with a supporting portion 110, and the supporting portion 110 is located at the lower side of the connecting rod assembly 211.
- the handle 100 supports the first connecting rod 212 or the second connecting rod 213 through the supporting portion 110, so as to be operably engaged with the connecting rod assembly 211.
- the connecting rod assembly 211 is in the second position and then locked in the second position, the supporting portion 110 is separated from the connecting rod assembly 211 when the handle 100 is reset and rebounded.
- the handle 100 switches from the initial position to the pressing position, and the supporting portion 110 moves with the movement of the handle 100.
- the supporting portion 110 contacts the connecting rod assembly 211 located in the second position only when the handle 100 reaches the pressing position (the end point of the movement trajectory of the supporting portion 110), that is, the supporting portion 110 does not contact the connecting rod assembly 211 during the movement.
- This handle 100 cannot drive the connecting rod assembly 211 during subsequent actuation.
- the supporting portion 110 is a rod body, and the handle 100 is operably engaged with the connecting rod assembly 211 by abutting the second connecting rod 213 through the supporting portion 110. During the rotation of the second connecting rod 213, the supporting portion 110 can always abut the second connecting rod 213.
- the limiter 700 has a locking position and an unlocking position.
- the matching member 610 is limited to prevent the matching member 610 from matching with the cutting knife driving member 600.
- the connecting rod assembly 211 drives the jaw assembly 300 to switch from the open position to the closed position.
- the connecting rod assembly 211 also drives the limiter 700 to switch from the locking position to the unlocking position.
- the connecting rod assembly 211 keeps the jaw assembly 300 in the closed position and also keeps the limiter 700 in the unlocking position.
- the matching member 610 can match with the cutting knife driving member 600.
- the matching member 610 can drive the cutting knife driving member 600 to move, thereby driving the cutting knife assembly 630 forward for firing.
- the limiter 700 is movably disposed on the frame 410, and switches from the locked position to the unlocked position by movement.
- the limiter 700 is separated from the mating member 610 due to the movement, so as to release the pressure on the mating member 610, so that the mating member 610 can cooperate with the cutting knife driving member 600.
- the limiter 700 is rotatably disposed on the frame 410, and the connecting rod assembly 211 can drive the limiter 700 to rotate.
- the limiter 700 keeps pressing the mating member 610 during the rotation process until the limiter 700 rotates to the unlocked position and no longer presses the mating member 610, that is, the limiter 700 no longer applies a force to the mating member 610, so that the mating member 610 can cooperate with the cutting knife driving member 600 and drive the cutting knife assembly 630.
- the limiting member 700 is generally in the shape of a long strip, including a main body 710 and a pressing portion 720, the pressing portion 720 is connected to the main body 710, for example, the pressing portion 720 and the main body 710 are integrally arranged, the main body 710 is rotatably connected to the frame 410, the pressing portion 720 extends in the direction where the matching member 610 is located, and the limiting member 700 presses the matching member 610 through the pressing portion 720 to block the matching of the matching member 610 and the cutting blade driving member 600.
- the limiting member 700 also includes an elastic member (not shown in the figure), which can be a torsion spring, connected between the main body and the frame, and exerts force on the limiting member 700.
- the elastic force is added to keep the limiter 700 in the locked position, and the limiter 700 provides a pressing force against the mating member 610.
- the limiter 700 is driven by the connecting rod assembly 211 to move to the unlocked position, the elastic member is compressed. At the same time, the elastic member makes the handle 100 in the locked position before the first actuation.
- the limiter 700 also includes a protrusion 730, which is arranged on the body 710. In the process of the connecting rod assembly 211 driving the jaw assembly 300 to switch from the open position to the closed position, the protrusion 730 acts on the limiter 700, and the protrusion 730 drives the limiter 700 to rotate.
- the connecting rod assembly 211 does not contact the body 710 or the pressing portion 720 to prevent interference.
- the connecting rod assembly 211 keeps the jaw assembly 300 in the closed position, it still presses against the protrusion 730 to keep the limiter 700 in the unlocked position.
- the protrusion 730 is a rod body, and the protrusion is disposed on the main body 710, so that the stopper 700 can always abut against the connecting rod assembly 211 when being pushed and rotated by the connecting rod assembly 211.
- the protrusion 730 is L-shaped, including two side edges, and a corner is formed between the two side edges. When the protrusion 730 contacts the connecting rod assembly 211, it first contacts the connecting rod assembly 211 through the corner of the L-shaped protrusion 730.
- the protrusion 730 abuts against the connecting rod assembly 211 through one side edge, thereby increasing the contact area with the connecting rod assembly 211, and further increasing the stability of the stopper 700 in the unlocked position.
- the protrusion 730 abuts against the connecting rod assembly 211 of the closing mechanism 200.
- the matching member 610 automatically moves to match the cutting knife driving member 600.
- the matching member 610 is movably connected to the handle 100, and an elastic member 620 is provided between the handle 100 and the matching member 610.
- the matching member 610 moves toward the cutting knife driving member 600 under the elastic force provided by the elastic member 620, that is, the elastic force of the elastic member 620 can make the matching member 610 move in the direction of matching with the cutting knife driving member 600.
- the matching member 610 includes a ratchet 611
- the cutting knife driving member 600 is a toothed member, specifically a rack.
- the ratchet 611 is meshed with the toothed member.
- the elastic member 620 is a torsion spring, one end of which abuts against the handle 100. The other end abuts against the pawl 611, and the elastic force provided by the torsion spring causes the pawl 611 to rotate to a position where it cooperates with the toothed member.
- the handle 100 When the handle 100 is subsequently actuated, it can drive the pawl 611 to move through its own rotation. As shown in Figures 9 and 10, the handle 100 is rotatably connected to the frame 410 through a hinge shaft, and the pawl 611 is connected to the top of the handle 100. The gripping portion of the handle 100 and the pawl 611 are respectively located on both sides of the hinge shaft. When the handle 100 is pressed, it rotates counterclockwise to move the pawl 611 toward the distal end, thereby driving the toothed part to move toward the distal end, causing the cutting knife assembly 630 to move toward the distal end for firing.
- the ratchet 611 drives the toothed member and the cutting knife assembly 630 to move and fire; when the handle 100 is released, it rotates back to its original position clockwise, and the ratchet 611 moves toward the proximal end.
- the ratchet 611 can only drive the toothed member unidirectionally toward the distal end.
- the ratchet 611 moves toward the proximal end along the surface of the toothed member, while the toothed member and the cutting knife assembly 630 do not move, that is, when the handle 100 is released, the ratchet 611 moves toward the proximal end and returns to its original position, while the toothed member and the cutting knife assembly 630 do not move, and the ratchet 611 still cooperates with the toothed member.
- the third actuation the movement of the handle 100, the ratchet 611, the toothed member and the cutting knife assembly 630 is the same as the second actuation. It can be seen that in this embodiment, when the handle 100 is subsequently actuated, each actuation will cause the cutting knife assembly 630 to move forward a certain distance, and multiple actuations can complete the full firing of the cutting knife assembly 630.
- the pawl 611 when the limiter 700 releases the limit on the pawl 611 and the pawl 611 moves toward the toothed member under the action of the elastic member 620, the pawl 611 has a certain probability of being engaged with the toothed member, and also has a certain probability of only being in contact with the toothed member but in a non-engaged state. As shown in FIG13 , when the pawl 611 is in contact with the toothed member but not engaged, in response to the subsequent actuation of the handle 100, the pawl 611 moves toward the distal end, and the moving pawl 611 can engage with the toothed member and drive the pawl 611 to move. Therefore, the pawl 611 can stably drive the toothed member to move, thereby driving the cutting knife assembly 630 to move.
- the mating piece 610 also includes an extended protrusion 612, which is extended along the width direction of the pawl 611.
- the limiting piece 700 presses the mating piece 610 specifically against the extended protrusion 612.
- the setting of the extended protrusion 612 makes the position of the limiting piece 700 and the pawl 611 staggered to avoid interference between the two.
- the connecting rod assembly 211 is switched from the first position to the second position.
- the movement causes the shaft assembly 220 to shift so that the jaw assembly 300 switches from the open position to the closed position; at the same time, the movement of the connecting rod assembly 211 drives the limiter 700 to switch from the locked position to the unlocked position; and when the handle 100 is actuated for the first time, the matching member 610 cannot cooperate with the cutting knife driving member 600 due to being pressed by the limiter 700, and cannot drive the cutting knife assembly 630. That is, the first actuation causes the jaw assembly 300 to close, and the cutting knife assembly 630 does not move.
- the handle 100 is released, the handle 100 rebounds to the initial position, the connecting rod assembly 211 is locked in the second position, and the handle 100 is separated from the connecting rod assembly 211.
- the handle 100 is operated from the initial position to the pressing position again, and the handle 100 is separated from the connecting rod assembly 211 located in the second position. Only at the end of the movement path of the handle 100 will it contact the connecting rod assembly 211, and the connecting rod assembly 211 cannot be driven to move. Therefore, the handle 100 will not change the position of the connecting rod assembly 211 during subsequent actuation, the connecting rod assembly 211 remains in the second position, and the stopper 700 remains in the unlocked position.
- the matching member 610 cooperates with the cutting knife driving member 600 during subsequent actuation, and the handle 100 can drive the matching member 610 to move, drive the cutting knife driving member 600 to move, and then drive the cutting knife assembly 630 to fire.
- the closing mechanism 200 also includes an unlocking assembly (not shown in the figure), which is used to release the lock of the connecting rod assembly 211 in the second position.
- the unlocking assembly includes an operating part arranged outside the housing of the operating assembly 400, and an unlocking part located in the housing of the operating assembly to abut the connecting rod assembly 211 located in the second position.
- the unlocking part is linked with the operating part. When the medical staff operates the operating part, the unlocking part moves to push the connecting rod assembly 211, so that the connecting rod assembly 211 returns to the first position, and the jaw assembly opens to release the human tissue.
- the operating part can be a button arranged on the housing of the operating assembly 400, and the unlocking part is arranged in the operating assembly 400, which is a rod body extending in the up-down direction.
- the button is connected to the rod body.
- the button When the button is not operated, the rod body is located above the connecting rod assembly 211, and the connecting rod assembly 211 is self-locked in the second position; when the medical staff operates the button, the rod body moves downward to abut against the connecting rod assembly 211, so that the connecting rod assembly 211 is no longer in the second position, so as to release the self-locking state of the connecting rod assembly 211, and the rod body further moves downward to push the connecting rod assembly 211 to switch to the first position, thereby opening the jaw assembly 300.
- the handle 100 when opening the jaw assembly 300, the handle 100 is located in the initial position, and the connecting rod assembly 211 moves under the action of the rod body, and stops after abutting against the supporting portion 110 of the handle 100. At this time, the connecting rod assembly 211 is in the first position.
- the connecting rod assembly 211 When the jaw assembly 300 is in the open state, the connecting rod assembly 211 is in the first position, and the limit member 700 returns to the locked position under the action of the elastic member.
- the surgical instrument provided in the embodiment of the present disclosure is provided with only one handle 100.
- the actuation closes the jaw assembly 300 for squeezing, and the subsequent actuation causes the cutting knife to advance for firing.
- the overall structure is simple and easy to operate.
- the matching piece 610 is always connected to the handle 100, and the matching piece 610 can stably drive the cutting knife driving piece 600, making the firing process more stable.
- the self-locking connecting rod assembly 211 keeps the jaw assembly 300 in the closed position, without the need for operation and the need for setting a locking structure, so that the overall structure of the surgical instrument is simple, the locking of the connecting rod assembly 211 is stable, and it is not easy to fail to lock.
- Another embodiment of the present disclosure provides a surgical instrument that is substantially the same as the surgical instrument in the above embodiment, with the main difference being that the structure of the stopper 700 is different.
- the position-limiting member 700 includes a stopper 740.
- the stopper 740 When the position-limiting member 700 is in the locked position, the stopper 740 is located between the matching member 610 and the cutting knife driving member 600, separating the cutting knife driving member 600 from the matching member 610 to limit the matching member 610, so that the matching member 610 and the cutting knife driving member 600 cannot be matched.
- the stopper 740 When the position-limiting member 700 is in the unlocked position, the stopper 740 is disengaged from between the matching member 610 and the cutting knife driving member 600 to release the limit on the matching member 610, so that the matching member 610 can be matched with the cutting knife driving member 600.
- the stopper 740 is located between the mating member 610 and the cutting blade driving member 600 when in the locked position, and can stably block the mating member 610 from mating with the cutting blade driving member 600.
- the stopper 740 has a sufficient length in the direction of movement of the mating member 610, and can stably limit the mating member 610 and prevent the mating member 610 from mating with the cutting blade driving member.
- the stopper 740 when the limiting member 700 is located at the locking position, the stopper 740 at least abuts against the matching member 610 of the matching member 610 and the cutting blade driving member 600.
- the meaning of the stopper 740 at least abutting against the matching member 610 is that the stopper 740 only abuts against the matching member 610, or the stopper 740 abuts against the matching member 610 and the cutting blade driving member 600 at the same time.
- one side (upper side) of the stopper 740 abuts against the cutting blade driving member 600, and the matching member 610 abuts against the other side (lower side) of the stopper 740 under the action of the elastic member 620.
- the upper side of the stopper 740 is separated from the cutting blade driving member 600, and the lower side abuts against the matching member 610.
- the stopper 700 further includes a moving portion 750, which is movably disposed on the frame 410.
- the moving portion 750 is connected to the stopper 740 and can drive the stopper 740 to move so that the stopper 740 is separated from between the matching member 610 and the cutting knife driving member 600.
- the closing mechanism 200 drives the jaw assembly 300 to move from the open position to the closed position
- the closing mechanism 200 drives the moving portion 750 to move from the open position to the closed position.
- 750 moves, thereby driving the stopper 700 to switch from the locked position to the unlocked position.
- the connecting rod assembly 211 switches from the first position to the second position
- the connecting rod assembly 211 drives the moving part 750 to move
- the moving part 750 drives the stopper 740 to move.
- the movable part 750 is slidably disposed on the frame 410, as shown in Figure 14, and the movable part 750 includes a sliding part 751 and a guide part 752.
- the sliding part 751 is slidably connected to the frame 410
- the guide part 752 is connected to the sliding part 751.
- the guide part 752 has a guiding inclined surface 761 (as shown in Figure 15).
- the frame 410 is provided with a sliding shaft 420
- the sliding portion 751 is arranged in an annular shape and is sleeved on the sliding shaft 420, the sliding portion 751 can move along the axial direction of the sliding shaft 420
- the moving portion 750 further includes a spring 770, the spring 770 is arranged on the side of the sliding portion 751 away from the stopper 740, and is sleeved on the sliding shaft 420, and is used to apply elastic force to the sliding portion 751.
- a screw 780 is arranged at one end of the sliding shaft 420 away from the frame 410, the screw 780 includes a stud and a nut 782, the stud is screwed into the sliding shaft 420 to cooperate with the sliding shaft 420, the nut 782 is located on the side of the sliding shaft 420 away from the frame 410, one end of the spring 770 abuts against the nut 782, and the other end abuts against the sliding portion 751.
- the guide portion 752 is located below the moving portion 750, and the guide slope 761 has a high side and a low side from top to bottom. In the front-to-back direction, the high side is located between the low side and the stop portion 740.
- the connecting rod assembly 211 gradually moves upward during the process of switching from the first position to the second position, first abutting against the low side of the guide slope 761, pushing the guide portion 752 to move until it abuts against the high side of the guide slope 761.
- the guide portion 752 drives the sliding portion 751 to move relative to the sliding shaft 420 in a direction away from the mating piece 610, thereby driving the stop portion 740 to move to disengage from between the mating piece 610 and the cutting knife drive 600.
- the spring 770 is compressed.
- the first connecting rod 212 and/or the second connecting rod 213 in the connecting rod assembly 211 is provided with a mating bevel 762.
- the connecting rod that contacts the guide portion 752 during the process of switching the connecting rod assembly 211 from the first position to the second position is provided with a mating bevel 762.
- the slope of the mating bevel 762 is substantially consistent with that of the guide bevel 761, so as to better promote the movement of the guide portion 752.
- the stop portion 740 is arranged in a sheet shape, and the width of the stop portion 740 is substantially the same as the width of the cutting knife driving component 600, so as to cover the surface of the cutting knife driving component 600, prevent the mating component 610 from mating with the cutting knife driving component 600, and at the same time save the material of the stop portion 740, facilitating the movement of the limit component 700.
- the embodiments of the present disclosure provide a surgical instrument that is substantially the same as the surgical instrument in the above embodiments, with the main difference being that the structure of the stopper 700 is different.
- the limiting member 700 is disposed on the first connecting rod 212 or the second connecting rod 213.
- the connecting rod assembly 211 switches from the first position to the second position
- the limiting member 700 moves with the connecting rod assembly 211 and switches from the locked position to the unlocked position to release the limit on the mating member 610.
- the limiting member 700 moves with the connecting rod assembly 211 and switches from the locked position to the unlocked position, and the position switching is more stable.
- the stopper 700 is a rod body provided on the second connecting rod 213, and forms a certain angle with the second connecting rod 213.
- the stopper 700 and the second connecting rod 213 form an acute angle with each other, so that the stopper 700 is tilted and provided on the second connecting rod 213.
- the stopper 700 and the second connecting rod 213 are partially staggered, and the stopper 700 includes a main body 770 and a blocking part 780, wherein the main body 770 is connected to the first connecting rod 212 or the second connecting rod 213, and the projection of the main body 770 in the vertical direction falls on the first connecting rod 212 or the second connecting rod 213, and the blocking part 780 is connected to the main body 770, for example, is integrally formed with the main body 770, and protrudes in the direction where the matching member 610 is located. The projection of the fitting 610 in the vertical direction does not fall on the first link 212 or the second link 213 to avoid interference with the moving link assembly 211 .
- the overall shape of the stopper 700 is inclined, and its head and tail ends are both flat-plate-shaped.
- the blocking portion 780 has a supporting surface 781, which specifically includes an inclined surface 7811 and two planes 7812 connected to the head and tail ends of the inclined surface 7811.
- the matching member 610 has a tendency to move toward the direction of the cutting knife driving member 600 (towards the head end) under the action of the elastic member 620, and the plane 7812 connected to the head end of the inclined surface 7811 can prevent the matching member 610 from separating from the supporting surface 781.
- the limiting member 700 is driven to move upward and rotate, so that the extension protrusion 612 of the matching member 610 and the abutting surface 781 move relative to each other, specifically, the extension protrusion 612 moves toward the tail end along the inclined surface 7811 and separates from the flat surface 7812 at the tail end, and the elastic member 620 is gradually released during this process.
- the limiting member 700 is located above the extension protrusion 612 as a whole, the elastic member 620 is completely released, the matching member 610 is matched with the cutting knife driving member 600, and is separated from the limiting member 700, and the limiting member 700 will not prevent the matching member 610 from subsequently driving the cutting knife driving member 600.
- the operating component is generally provided with two handles, which respectively control the closing of the jaws and the feeding of the cutting knife, and the structure is complex and the operation is cumbersome.
- a stapler with a single handle that can control the closing of the jaws and the advancement of the cutting knife, including a handle, a cam, a connecting rod, a rack and a ratchet assembly.
- the handle is connected to the cam.
- the ratchet assembly is separated from the handle and the ratchet assembly is separated from the rack.
- the cam rotates to drive the connecting rod to move to close the jaws. After the cam rotates, it is locked by the spring mechanism. The cam rotates and gives way at the same time to move the ratchet assembly.
- the ratchet assembly after moving is meshed with the handle and the rack at the same time, so that the handle can drive the jaw rack during subsequent actuation, and then drive the cutting knife.
- the stability of the ratchet assembly moving and cooperating with the handle and the rack is poor, and the handle is prone to getting stuck, resulting in the inability to perform the operation normally.
- the embodiments of the present disclosure provide a surgical instrument that can control the closing of the jaws and the advancement (firing) of the cutting knife through a single handle. It has a simple structure, is easy to operate, and the handle will not get stuck, thereby achieving high stability.
- an embodiment of the present disclosure provides a surgical instrument, comprising: an operating assembly 400 and a jaw assembly 300 and a cutting knife assembly 630 respectively connected to the operating assembly 400, wherein the operating assembly 400 comprises: a handle 100, which can be operated for a first actuation and subsequent actuations; a closing mechanism 200, connected to the jaw assembly 300; a cutting knife driving member 600, connected to the cutting knife assembly 630; a matching member 610, connected to the handle 100; a limiting member 700, having a locking position and an unlocking position, wherein in the locking position, the limiting member 700 limits the matching member 610 to prevent the matching member 610 from being engaged with the cutting knife driving member 600; in response to the first actuation of the handle 100, the closing mechanism 200 drives the jaw assembly 300 to switch from the open position to the closed position and keeps the jaw assembly 300 in the closed position, and drives the limit member 700 to switch from the locked position to the unlocked position; when the jaw assembly 300 is in the closed position, the limit member 700 is
- the limiter 700 has a locked position and an unlocked position.
- the mating member 610 is limited to prevent the mating member 610 from mating with the cutting knife drive 600.
- the limiter 700 Before the handle 100 is actuated for the first time, the limiter 700 is in the locked position.
- the closing mechanism 200 drives the jaw assembly 300 to switch from the open position to the closed position.
- the closing mechanism 200 drives the limiter 700 to switch from the locked position to the unlocked position.
- the closing mechanism 200 keeps the jaw assembly 300 in the closed position and also keeps the limiter 700 in the unlocked position.
- the mating member 610 can engage with the cutting knife drive 600.
- the cutting knife driving member 600 can be driven to move through the matching member 610, thereby driving the cutting knife assembly 630 forward for firing.
- the surgical instrument in this embodiment is only provided with a handle 100, and the single handle 100 can realize the functions of squeezing and firing.
- the handle 100 can drive the jaw assembly 300 to close for squeezing during the first actuation, and can drive the cutting knife assembly 630 for firing during subsequent actuations, making the structure and operation of the surgical instrument simpler and more stable, and improving the stability of the surgical instrument and the convenience of operation for medical staff.
- the limiter 700 Before the handle 100 is actuated for the first time, the limiter 700 is located in the locked position, and the pressing portion 720 presses against the extension protrusion 612.
- the limiter 700 rotates counterclockwise, the pressing portion 720 rotates synchronously with the limiter 7001, and the pawl 611 rotates clockwise, so that the tip of the pawl 611 is close to the toothed member, and the pressing portion 720 always presses against the extension protrusion 612; after the limiter 700 reaches the unlocked position, the pawl 611 presses against the toothed member, and the pressing portion 720 is located above the extension protrusion 612 and no longer presses against the extension protrusion 612, so that the pawl 611 can drive the toothed member to move.
- the closing mechanism 200 includes a shaft driving member 210 and a shaft assembly 220, the shaft assembly 220 is connected to the jaw assembly 300, the shaft driving member 210 is connected to the shaft assembly 220, and when the handle 100 is actuated for the first time, the handle 100 is operably engaged with the shaft driving member 210, so that the handle 100 can drive the shaft driving member 210 to move, and the shaft driving member 210 can drive the shaft assembly 220 to move when moving, thereby switching the jaw assembly 300 from the open position to the closed position.
- the shaft assembly 220 includes an inner sleeve 222 and an outer sleeve 221, the outer sleeve 221 is sleeved on the inner sleeve 222, and the outer sleeve 221 can move relative to the inner sleeve 222, one end of the outer sleeve 221 is connected to the shaft driving member 210, and the other end is connected to the jaw assembly 300.
- the shaft driving member 210 switches from the first position to the second position to drive the outer sleeve 221 to move, and the movement of the outer sleeve 221 causes the jaw assembly 300 to switch from the open position to the closed position.
- the shaft driving member 210 is locked in the second position, thereby locking the position of the outer sleeve 221, and the jaw assembly 300 remains in the closed position.
- the shaft driving member 210 remains in the second position and does not move with the handle 100, and the outer sleeve 221 also remains in a position that causes the jaw assembly 300 to be in the closed position.
- the shaft driving member 210 includes a connecting rod assembly 211, and the connecting rod assembly 211 includes a first connecting rod 212 and a second connecting rod 213.
- the first connecting rod 212 is rotatably connected to the shaft assembly 220, specifically to the outer sleeve 221; one end of the second connecting rod 213 is rotatably connected to the frame 410, and the other end is rotatably connected to the frame 410.
- the first connecting rod 212 is rotatably connected to the first connecting rod 213 to form a two-link mechanism.
- the connecting rod assembly 211 When the connecting rod assembly 211 is located at the first position, the first connecting rod 212 and the second connecting rod 213 are at a certain angle to each other, and the first connecting rod 212 and the second connecting rod 213 are both inclined to the lower side (the side close to the gripping portion of the handle 100).
- the handle 100 contacts the first connecting rod 212 or the second connecting rod 213, so that the handle 100 can drive the connecting rod assembly 211 to move, wherein the distal end of the first connecting rod 212 is rotatably connected to the outer sleeve 221, and the proximal end is rotatably connected to the second connecting rod 213, and the first connecting rod 212 and the second connecting rod 213 are rotatably connected through a hinge point.
- the hinge point gradually moves to the upper side (the side away from the gripping part of the handle 100).
- the connecting rod assembly 211 can drive the outer sleeve 221 to move toward the distal end to close the jaw assembly 300.
- the connecting rod assembly 211 when the connecting rod assembly 211 is located at the second position, the connecting rod assembly 211 is located at the dead point or substantially at the dead point. Being located at the dead point means that the first connecting rod 212 and the second connecting rod 213 are located on the same straight line, and the angle between the two is 180°. Being substantially at the dead point means that the first connecting rod 212 and the second connecting rod 213 pass the dead point position, and the angle between the first connecting rod 212 and the second connecting rod 213 is greater than 0° and less than 5°.
- the connecting rod assembly 211 is located at the dead point or substantially at the dead point, the pressure angle between the first connecting rod 212 and the second connecting rod 213 is substantially equal to 90°.
- the torque on the other connecting rod is zero, so that the connecting rod assembly 211 cannot move, and the connecting rod assembly 211 is locked in the second position.
- the closing mechanism 200 further includes a locking member 800.
- the locking member 800 cooperates with the shaft driving member 210 to lock the shaft driving member 210 in the second position, thereby keeping the jaw assembly 300 in the closed position.
- the locking member 800 is a movable spring pin assembly, including a spring member 820 and a pin 810.
- the spring member 820 is sleeved on the pin 810.
- the pin 810 is provided with a protrusion. One end of the spring member 820 abuts against the protrusion of the pin 810, and the other end abuts against the frame.
- the pin 810 When the connecting rod assembly 211 is in the first position, the pin 810 is located above the connecting rod assembly 211; when the connecting rod assembly 211 is in the second position, the pin 810 is located below the connecting rod assembly 211. That is, the connecting rod assembly 211 will pass through the pin 810 when switching from the first position to the second position.
- the pin 810 blocks the connecting rod assembly 211 above the connecting rod assembly 211.
- the lower side of the pin 810 has a guide surface. When the connecting rod assembly 211 passes through the pin 810, it first abuts against the guide surface 811 of the pin 810.
- the guide surface 811 is an inclined The connecting rod assembly 211 abuts against the guide surface 811 so that the pin 810 can move relative to the connecting rod assembly 211.
- a matching inclined surface 2111 is provided on the upper side of the connecting rod assembly 211.
- the pin 810 retracts to make way for the connecting rod assembly 211, compresses the spring member 820, and no longer blocks the connecting rod assembly 211, so that the connecting rod assembly 211 can pass through the pin 810.
- the pin 810 rebounds under the action of the spring member 820, extends out from the bottom of the connecting rod assembly 211, abuts against the connecting rod assembly 211 below the connecting rod assembly 211, and cooperates with the connecting rod assembly 211, blocking the connecting rod assembly 211 from moving to the first position (downward), thereby locking the connecting rod assembly 211 in the second position.
- an operating member capable of retracting the pin 810 is provided on the housing of the operating assembly 400, and the operating member is connected to the pin 810, and the pin 810 is retracted by pulling the operating member, and the spring is compressed.
- the medical staff pulls the operating member to retract the pin 810, so that the pin 810 no longer abuts the connecting rod assembly 211 from below, and the cooperation between the pin 810 and the connecting rod assembly 211 is released, so that the connecting rod assembly 211 can move to the first position, and the jaw assembly 300 can be opened.
- the locking member 800 can also be other structures, and the connecting rod assembly 211 can be locked by other methods, and the embodiments of the present disclosure do not specifically limit this.
- the locking member can be used in combination with the self-locking of the connecting rod assembly 211 in the dead point position, or it can be used independently.
- a supporting portion 110 is provided on the handle 100 , and the supporting portion 110 is located at the lower side of the connecting rod assembly 211 .
- the handle 100 supports the first connecting rod 212 or the second connecting rod 213 through the supporting portion 110 so as to be operably engaged with the shaft driving member 210 .
- the connecting rod assembly 211 is in the second position and locked in the second position, the support portion 110 is separated from the connecting rod assembly 211 when the handle 100 is reset and rebounded.
- the handle 100 switches from the initial position to the pressing position, and the support portion 110 moves with the movement of the handle 100.
- the support portion 100 contacts the connecting rod assembly 211 in the second position only when the handle 100 reaches the pressing position (the end point of the movement trajectory of the support portion 100), that is, the support portion 110 does not contact the connecting rod assembly 211 during the movement, so the handle 100 cannot drive the connecting rod assembly 211 during subsequent actuation.
- the support portion 110 is a rod body, and the handle 100 is operably engaged with the rod body driving member 210 by the support portion 110 against the second connecting rod 213. During the rotation of the second connecting rod 213, the support portion 110 can always against the second connecting rod 213.
- the surgical instrument provided by the embodiment of the present disclosure has only one handle.
- the first actuation of the handle closes the jaw assembly for squeezing, and the subsequent actuation causes the cutting knife to advance for firing.
- the overall structure is simple, reliable, and easy to operate.
- the matching piece is always connected to the handle, and the matching piece can stably drive the cutting knife.
- the knife drive makes the firing process more stable.
- a connecting rod assembly is provided in the operating assembly, and the connecting rod assembly is connected to the outer sleeve.
- the handle drives the connecting rod assembly to move to drive the outer sleeve to move, and then drives the jaw assembly to close the jaw assembly.
- the overall stability of the connecting rod assembly driving the jaw assembly to close is poor, which can easily cause instability in the closing of the jaw assembly and tissue compression.
- the embodiment of the present disclosure provides a surgical instrument, which can be a stapler, as shown in Figures 31 and 32, including an operating assembly 400 and a jaw assembly 300 connected to the operating assembly 400, the operating assembly 400 includes a frame 410, a handle 100 and a connecting rod assembly 500, the handle 100 is rotatably connected to the frame 410, an elastic assembly (not shown in the figure) is provided between the handle 100 and the frame 410, the handle 100 has an initial position and a pressing position, and the medical staff can press the handle 100 to move the handle 100 from the initial position to the pressing position, and after releasing the handle 100, the handle 100 rebounds from the pressing position to the initial position under the action of the elastic assembly, and the process of the handle 100 from the initial position to the pressing position is called actuation.
- the handle 100 is operated to actuate, and when the handle 100 is actuated, the connecting rod assembly 500 is driven to move, and in response to the movement of the connecting rod assembly 500, the jaw assembly 300 moves from the open position to the closed position
- the link assembly 500 is operably engaged with the handle 100, and the handle 100 can drive the link assembly 500 to move when actuated.
- the link assembly 500 includes a left link 510 and a right link 520, and the left link 510 and the right link 520 are respectively located on both sides of the frame 410, that is, the left link 510 is located on one side of the frame 410, and the right link 520 is located on the other side of the frame 410.
- the left link 510 is connected to the right link 520, and the handle 100 is operably engaged with the left link 510 and/or the right link 520, so that when the handle 100 is actuated, it can simultaneously drive the left link 510 and the right link 520 to move, thereby driving the link assembly 500, and then moving the jaw assembly 300 from the open position to the closed position.
- the left connecting rod 510 and the right connecting rod 520 are connected and can move synchronously under the drive of the handle 100, so that the movement of the connecting rod assembly 500 is more stable, and then the handle 100 drives the jaw assembly 300 to close more stably.
- the left side link 510 includes a left first link 511 and a left second link 512, wherein the left first link 511 is rotatably connected to the jaw assembly 300, and one end of the left second link 512 is rotatably connected to the frame 410, and the other end is rotatably connected to the left first link 511;
- the right side link 520 includes a right first link 521 and a right second link 522, wherein the right first link 521 is rotatably connected to the jaw assembly 300, and one end of the right second link 522 is rotatably connected to the frame 410, and the other end is rotatably connected to the right first link 521.
- the connecting rod 512 is connected to the right second connecting rod 522, so that the left connecting rod 510 can move synchronously with the right connecting rod 520.
- at least one of the left first connecting rod 511, the left second connecting rod 512, the right first connecting rod 521, and the right second connecting rod 522 can be operably engaged with the handle 100, so that the handle 100 is operably engaged with the left connecting rod 510 and/or the right connecting rod 520.
- the handle 100 drives the left connecting rod 510 and/or the right connecting rod 520 to move, and the left connecting rod 510 and the right connecting rod 520 move synchronously and in a mirrored motion.
- the connecting rod assembly 500 only the left connecting rod 510 is used as an example in this embodiment, and the state of the right connecting rod 520 is the same as that of the left connecting rod 510.
- FIG38 when the handle 100 is in the initial position, the connecting rod assembly 500 is located in the first position.
- the connecting rod assembly 500 is located in the second position.
- the left first connecting rod 511 and the left second connecting rod 512 form a certain angle with each other, and the left first connecting rod 511 and the left second connecting rod 512 are both inclined in the direction where the gripping portion 121 (as shown in FIG30) of the handle 100 is located, and are generally V-shaped.
- the connecting rod assembly 500 is located at the second position, the left connecting rod 510 is located at the dead point or substantially at the dead point, and the right connecting rod 520 is located at the dead point or substantially at the dead point. Being located at the dead point means that the left first connecting rod 511 and the left second connecting rod 512 are located on the same straight line, and the angle between the two is 0° (or 180°).
- the left first connecting rod 511 and the left second connecting rod 512 pass the dead point position, and the angle between the left first connecting rod 511 and the left second connecting rod 512 is greater than 0° and less than 5°.
- the pressure angle between the left first connecting rod 511 and the left second connecting rod 512 is substantially equal to 90°.
- the torque on the other connecting rod is zero, so that the left connecting rod 510 cannot move, thereby locking the left connecting rod 510 in the second position.
- the right connecting rod 520 When the left connecting rod 510 is at the dead point, the right connecting rod 520 is also at the dead point; when the left connecting rod 510 is substantially at the dead point, the right connecting rod 520 is substantially at the dead point position, and the right connecting rod 520 and the left connecting rod 510 are synchronously locked at the second position, so that the connecting rod assembly 500 is self-locked at the second position.
- the left connecting rod 510 and the right connecting rod 520 are synchronously locked, which improves the self-locking stability of the connecting rod assembly 500.
- the connecting rod assembly 500 further includes a connecting portion 800, one end of which is rotatably connected to the left second connecting rod 512, and the other end of which is rotatably connected to the right second connecting rod 522.
- the connecting portion 800 connects the left second connecting rod 512 and the right second connecting rod 522, thereby enabling the left side connecting rod 510 and the right side connecting rod 520 to move synchronously.
- the connecting portion 800 is connected to the left second connecting rod 512 and the right second connecting rod 522, respectively.
- the connecting portion 800 may be inserted into the frame 410, or may be disposed around the outer shell of the frame 410.
- the connecting portion 800 is disposed at one end of the frame 410 and disposed around the outer shell of the frame 410.
- the joint 800 is arranged in a concave shape as a whole, and includes a clamping plate 810, a pin 820, a left hinge part 830 and a right hinge part.
- the right hinge part is arranged corresponding to the left hinge part 830.
- the right hinge part is arranged symmetrically with the left hinge part 830.
- the structure of the right hinge part can refer to the left hinge part 830 shown in Figure 35.
- the clamping plate 810 is arranged in a concave shape, and includes three plates, namely: a left plate 811, a right plate 812 and a connecting plate 813, the left plate 811 is fixed to the left side of the frame 410, the right plate 812 is fixed to the right side of the frame 410, the connecting plate 813 is fitted with the frame 410, the left plate 811 and the right plate 812 are respectively arranged on both sides of the connecting plate 813, and the left plate 811 and the right plate 812 are connected to the frame 410 by fasteners, so that the clamping plate 810 is fixed to the frame 410.
- the left side plate 811, the right side plate 812 and the connecting plate 813 are integrally formed to improve the stability of the clamping plate 810.
- the left hinge 830 is provided on the left side plate 811, and the right hinge is provided on the right side plate 812.
- the left hinge 830 is rotatably connected to the left second connecting rod 512, and the right hinge is rotatably connected to the right second connecting rod 522.
- the rotatable connection between the left hinge 830 and the left second connecting rod 512, and the rotatable connection between the right hinge and the right second connecting rod 522 are all realized by the pin 820.
- the left second link 512 has a left hinge end 5121, which is located between the clamping plate 810 and the left hinge part 830, specifically between the left side plate 811 and the left hinge part 830, and the pin 820 penetrates the left hinge part 830 and the left side plate 811, so that the left second link 512 is rotatably connected to the left hinge part 830.
- the right second link 522 has a right hinge end 5221, which is located between the clamping plate 810 and the right hinge part, specifically between the right side plate 812 and the right hinge part, and the pin 820 penetrates the right hinge end 5221 and the right side plate 812, so that the right second link 522 is rotatably connected to the right hinge part.
- the pin 820 is divided into two parts, one of which enables the left second link 512 to be rotatably connected to the left hinge 830, and the other enables the right second link 522 to be rotatably connected to the right hinge.
- the pin 820 is a shaft body, and the pin 820 passes through the left hinge 830, the left side plate 811, the frame 410, the right side plate 812 and the right hinge, so that the left second link 512 is rotatably connected to the left hinge 830, and the right second link 522 is rotatably connected to the right hinge, and is integrated with the frame 410, thereby improving the stability of the connection between the left second link 512 and the right second link 522.
- the left first link 511 includes a left first hinge hole 5111 and a left middle hinge hole 5112.
- the left first link 511 is rotatably connected to the jaw assembly 300 through the left first hinge hole 5111.
- the left first link 511 is rotatably connected to the left second link 512 through the left middle hinge hole 5112.
- the right first link 521 includes a right first hinge hole and a right middle hinge hole (not shown in the figure).
- the right first link 521 is rotatably connected to the jaw assembly 300 through the right first hinge hole.
- 521 is rotatably connected to the right second link 522 through the right middle hinge hole.
- the left first hinge hole 5111 is coaxially arranged with the right first hinge hole
- the left middle hinge hole 5112 is coaxially arranged with the right middle hinge hole
- the left hinge end 5121 of the left second link 512 is coaxially arranged with the right hinge end 5221 of the right second link 522.
- the length of the left first link 511 is the same as the length of the right first link 521
- the length of the left second link 512 is the same as the length of the right second link 522, so that the left link 510 and the right link 520 can move in a mirror image, and the stability of the movement of the link assembly 500 will not be affected while improving the stability of the link assembly 500.
- the operating assembly 400 also includes an outer sleeve 221, which is connected to the jaw assembly 300.
- the outer sleeve 221 is a long rod.
- the left first link 511 and the right first link 521 are both rotatably connected to the outer sleeve 221, that is, the left first link 511 is connected to the jaw assembly 300 through the outer sleeve 221, and the right first link 521 is connected to the jaw assembly 300 through the outer sleeve 221.
- the outer sleeve 221 is arranged in an annular shape, and the left and right sides of the outer sleeve 221 are respectively provided with a left connecting member 2211 and a right connecting member 2212, and the left connecting member 2211 and the right connecting member 2212 are arranged relative to each other, and the relative arrangement means that the left connecting member 2211 and the right connecting member 2212 are arranged symmetrically about a reference plane, and the axis of the outer sleeve 221 is located in the reference plane, and the reference plane is parallel to the left first connecting rod 511 and the right first connecting rod 521.
- the left first connecting rod 511 is rotatably connected to the left connecting member 2211 through the left first hinge hole 5111
- the right first connecting rod 521 is rotatably connected to the right connecting member 2212 through the right first hinge hole.
- the left connecting member 2211 is connected to the left first hinge hole 5111 by a pin
- the right connecting member 2212 is connected to the right first hinge hole by another pin.
- the handle 100 includes a handle body 120 and a supporting portion 110 connected to the handle body 120, the handle body 120 has a gripping portion 121 and a pivot shaft 122, and the medical staff operates the handle 100 by gripping the gripping portion 121 of the handle body 120.
- the handle 100 rotates around the pivot shaft 122 when actuated, the supporting portion 110 is disposed above the pivot shaft 122, and the supporting portion 110 supports the left-side connecting rod 510 and/or the right-side connecting rod 520 so that the handle 100 can be operably engaged with the left-side connecting rod 510 and/or the right-side connecting rod 520.
- the handle body 120 is located between the left connecting rod 510 and the right connecting rod 520.
- the handle body 120 does not interfere with the connecting rod assembly 500 when rotating.
- the supporting portion 110 is provided on the handle body 120 and extends in the width direction of the handle body 120.
- the supporting portion 110 is located between the connecting rod assembly 500 and the connecting rod assembly 500. 500 and abut against the connecting rod assembly 500.
- the supporting portion 110 moves to drive the connecting rod assembly 500 to move.
- the supporting portion 110 can be arranged on the left side of the handle body 120 to support the left connecting rod 510, and drive the connecting rod assembly 500 to move by driving the left connecting rod 510; in another embodiment, the supporting portion 110 can be arranged on the right side of the handle body 120 to support the right connecting rod 520.
- the supporting portion 110 is arranged on the left and right sides of the handle body 120, and the supporting portion 110 supports the left connecting rod 510 and the right connecting rod 520, and drives the left connecting rod 510 and the right connecting rod 520 to move, so as to improve the stability of the movement of the connecting rod assembly 500.
- the supporting portion 110 is a rod body, which is disposed through the handle body 120 and protrudes from both sides of the handle body 120.
- the supporting portion 110 supports the left second connecting rod 512 and the right second connecting rod 522 to drive the left connecting rod 510 and the right connecting rod 520 to move.
- the supporting portion 110 can also support the left first connecting rod 511 and the right first connecting rod 521, which is not specifically limited.
- the left first connecting rod 511 and the right first connecting rod 521 push the outer sleeve 221 at the same time, thereby pushing the jaw assembly 300 to close.
- the connecting rod assembly 500 drives the outer sleeve 221 from both sides, thereby improving the stability of the movement of the outer sleeve 221.
- the left connecting rod 510 and the right connecting rod 520 are located at the dead point or substantially at the dead point, so that the connecting rod assembly 500 is self-locked in the second position.
- the connecting rod assembly 500 improves the movement stability and locking stability of the connecting rod assembly 500 by disposing the left connecting rod 510 and the right connecting rod 520, so that the closing of the jaw assembly 300 and the squeezing of the tissue are more stable.
- the surgical instrument also includes a cutting knife assembly 630
- the operating assembly 400 also includes a cutting knife driver 600, a matching piece 610, and a limit piece 700.
- the cutting knife driver 600 is connected to the cutting knife assembly 630
- the matching piece 610 is connected to the handle 100 and is used to cooperate with the cutting knife driver 600.
- the matching piece 610 can drive the cutting knife driver 600 to move, thereby driving the cutting knife assembly 630 forward.
- the cutting knife assembly 630 moves forward to cut the tissue, and the staple cartridge assembly staples out and sutures the tissue.
- the connecting rod assembly 500 The jaw assembly 300 is driven to switch from the open position to the closed position, and the jaw assembly 300 is kept in the closed position to squeeze the tissue and keep the tissue in the squeezed state.
- the connecting rod assembly 500 is self-locked in the second position and will not move with the release and rebound of the handle 100, and will always remain in the state of making the jaw assembly 300 in the closed position.
- the connecting rod assembly 500 cannot be driven to move, nor can the state of the jaw assembly 300 in the closed position be changed.
- the handle 100 switches from the initial position to the pressing position, the supporting portion 110 moves with the movement of the handle 100.
- the supporting portion 110 contacts the connecting rod assembly 500 in the second position only when the handle 100 reaches the pressing position (the end point of the movement trajectory of the supporting portion 110), that is, the supporting portion 110 does not contact the connecting rod assembly 500 during the movement, so the handle 100 cannot drive the connecting rod assembly 500 in subsequent actuation.
- the cutting knife driving component 600 is connected to the cutting knife assembly 630, and the matching component 610 is connected to the handle 100.
- the matching component 610 cooperates with the cutting knife driving component 600, it can drive the cutting knife driving component 600 under the drive of the handle 100, and then drive the cutting knife assembly 630.
- the limiting member 700 limits the matching member 610 to separate the matching member 610 from the cutting knife driving member 600, so that the first actuation of the handle 100 can only drive the jaw assembly 300 to close, and cannot drive the cutting knife assembly 630.
- the limiting member 700 releases the limit on the matching member 610 so that the matching member 610 can cooperate with the cutting knife driving member 600.
- the matching member 610 can cooperate with the cutting knife driving member 600 means that the matching member 610 moves to a position where it cooperates with the cutting knife driving member 600. In one embodiment, the matching member 610 automatically moves to cooperate with the cutting knife driving member 600.
- the surgical instrument provided in the embodiment of the present disclosure is only provided with a handle 100, and the single handle 100 can realize the functions of squeezing and firing.
- the handle 100 can drive the jaw assembly 300 to close for squeezing during the first actuation, and can drive the cutting knife assembly 630 for firing during subsequent actuations, thereby making the structure and operation of the surgical instrument simpler, and improving the stability of the surgical instrument and the convenience of operation for medical staff.
- the limit member 700 has a locked position and an unlocked position.
- the matching member 610 is limited to prevent the matching member 610 from cooperating with the cutting knife driving member 600.
- the limit member 700 Before the handle 100 is actuated for the first time, the limit member 700 is in the locked position.
- the connecting rod assembly 500 drives the jaw assembly 300 to switch from the open position to the closed position.
- the connecting rod assembly 500 drives the limit member 700 to switch from the locked position to the unlocked position, as shown in FIG. 33 , FIG. 38 and FIG. 39 .
- the connecting rod assembly 500 keeps the jaw assembly 300 in the closed position and also keeps the limit member 700 in the unlocked position.
- the matching member 610 can engage with the cutting knife driving member 600.
- the knife driving member 600 cooperates, and when the handle 100 is subsequently actuated, it can drive the cutting knife driving member 600 to move through the matching member 610, and then drive the cutting knife assembly 630 forward for firing.
- the position-limiting member 700 when the position-limiting member 700 is in the locked position, it presses against the mating member 610 to apply a force to the mating member 610, thereby limiting the mating member 610, so that the mating member 610 is in a position where it cannot be mated with the cutting blade driving member 600, thereby blocking the mating member 610 from mating with the cutting blade driving member 600.
- the position-limiting member 700 is in the unlocked position, the pressure on the mating member 610 is released, so that the mating member 610 can be mated with the cutting blade driving member 600.
- the limiter 700 is movably disposed on the frame 410, and switches from the locked position to the unlocked position by movement.
- the limiter 700 is separated from the mating member 610 due to the movement, so as to release the pressure on the mating member 610, so that the mating member 610 can be matched with the cutting knife driving member 600.
- the limiter 700 is rotatably disposed on the frame 410, and the connecting rod assembly 500 can drive the limiter 700 to rotate.
- the limiter 700 keeps pressing the mating member 610 during the rotation process until the limiter 700 rotates to the unlocked position and no longer presses the mating member 610, that is, the limiter 700 no longer applies a force to the mating member 610, so that the mating member 610 can cooperate with the cutting knife driving member 600 and drive the cutting knife assembly 630.
- the stopper 700 is generally in the shape of a long strip, and includes a main body 710 and a pressing part 720.
- the pressing part 720 is connected to the main body 710.
- the pressing part 720 and the main body 710 are integrally arranged.
- the main body 710 is rotatably connected to the frame 410.
- the pressing part 720 extends in the direction where the matching piece 610 is located.
- the stopper 700 presses the matching piece 610 through the pressing part 720 to block the matching of the matching piece 610 with the cutting blade driving member 600.
- the stopper 700 also includes an elastic member (not shown in the figure).
- the elastic member can be a torsion spring.
- the elastic member is connected between the main body and the frame.
- the elastic member applies elastic force to the stopper 700 to keep the stopper 700 in the locked position and provide a pressing force for the stopper 700 to press the matching piece 610.
- the elastic member is compressed.
- the elastic member makes the handle 100 in a locked position before the first actuation.
- the limiter 700 also includes a protrusion 730, which is arranged on the main body 710.
- the connecting rod assembly 500 drives the jaw assembly 300 to switch from the open position to the closed position, it acts on the protrusion 730, and drives the limiter 700 to rotate through the protrusion 730.
- the connecting rod assembly 500 does not contact the main body 710 or the pressing portion 720 to prevent interference.
- the connecting rod assembly 500 keeps the jaw assembly 300 in the closed position, it still presses against the protrusion 730 to keep the limiter 700 in the unlocked position.
- the protrusion 730 is a shaft.
- the main body 710 is arranged so that the stopper 700 can always abut against the connecting rod assembly 500 when being pushed and rotated by the connecting rod assembly 500.
- the protrusion 730 is L-shaped, including two side edges, and a corner is formed between the two side edges.
- the connecting rod assembly 500 is first contacted by the corner of the L-shaped protrusion 730.
- the stopper 700 is in the unlocked position, the protrusion 730 abuts against the connecting rod assembly 500 through one side edge, thereby increasing the contact area with the connecting rod assembly 500, and further increasing the stability of maintaining the unlocked position.
- the matching member 610 automatically moves to match the cutting knife driving member 600.
- the matching member 610 is movably connected to the handle 100, and an elastic member 620 is provided between the handle 100 and the matching member 610.
- the matching member 610 moves toward the cutting knife driving member 600 under the elastic force provided by the elastic member 620, that is, the elastic force of the elastic member 620 can make the matching member 610 move in the direction of matching with the cutting knife driving member 600.
- the matching member 610 includes a pawl 611, and the cutting knife driving member 600 is a toothed member, specifically a rack.
- the pawl 611 is meshed with the toothed member.
- the elastic member 620 is a torsion spring, one end of which abuts the handle 100, and the other end abuts the pawl 611. The elastic force provided by the torsion spring causes the pawl 611 to rotate to a position that cooperates with the toothed member.
- the limiting member 700 When the limiting member 700 is in the locked position and presses the pawl 611, the pawl 611 cannot cooperate with the toothed member, and the torsion spring is compressed. When the limiting member 700 is switched to the unlocked position, the pressure on the pawl 611 is released, and the pawl 611 rotates under the action of the torsion spring to cooperate with the toothed member.
- the handle 100 When the handle 100 is subsequently actuated, it can drive the pawl 611 to move through its own rotation. As shown in Figures 9 and 10, the handle 100 is rotatably connected to the frame 410 through a hinge shaft, and the pawl 611 is connected to the top of the handle 100. When the handle 100 is pressed, it rotates counterclockwise, causing the pawl 611 to move toward the distal end, thereby driving the toothed member to move toward the distal end, causing the cutting knife assembly 630 to move toward the distal end for firing.
- the pawl 611 drives the toothed member and the cutting knife assembly 630 to move and fire; when the handle 100 is released, it rotates back clockwise. In the original position, the pawl 611 moves toward the proximal end, and the pawl 611 can only drive the toothed part unidirectionally toward the distal end.
- the pawl 611 moves toward the proximal end along the surface of the toothed part, while the toothed part and the cutting knife assembly 630 do not move, that is, when the handle 100 is released, the pawl 611 returns to the original position, the toothed part and the cutting knife assembly 630 do not move, and the pawl 611 still cooperates with the toothed part.
- the third actuation is performed, the movement of the handle 100, the pawl 611, the toothed part and the cutting knife assembly 630 is the same as the second actuation. It can be seen that in this embodiment, when the handle 100 is subsequently actuated, each actuation will cause the cutting knife assembly 630 to advance a certain distance, and multiple actuations can complete the full-range firing of the cutting knife assembly 630.
- the pawl 611 when the limiter 700 releases the limit on the pawl 611 and the pawl 611 moves toward the toothed member under the action of the elastic member 620, the pawl 611 has a certain probability of being engaged with the toothed member, and also has a certain probability of only being in contact with the toothed member but in a non-engaged state. As shown in FIG13 , when the pawl 611 is in contact with the toothed member but not engaged, in response to the subsequent actuation of the handle 100, the pawl 611 moves toward the distal end, and the moving pawl 611 can engage with the toothed member and drive the pawl 611 to move. Therefore, the pawl 611 can stably drive the toothed member to move, thereby driving the cutting knife assembly 630 to move.
- the fitting member 610 further includes an extension protrusion 612, which is extended along the width direction of the pawl 611.
- the stopper 700 presses against the fitting member 610, specifically against the extension protrusion 612.
- the setting of the extension protrusion 612 makes the position of the stopper 700 and the pawl 611 staggered to avoid interference between the two.
- the stopper 700 is located in the locking position, and the pressing portion 720 presses against the extension protrusion 612.
- the limit member 700 rotates counterclockwise, the pressing portion 720 rotates synchronously with the limit member 700, and the pawl 611 rotates clockwise, so that the tip of the pawl 611 is close to the toothed member, and the pressing portion 720 always presses the extended protrusion 612; after the limit member 700 reaches the unlocking position, the pawl 611 presses against the toothed member, and the pressing portion 720 is located above the extended protrusion 612 and no longer presses the extended protrusion 612, so that the pawl 611 can drive the toothed member to move.
- the first actuation of the handle 100 causes the connecting rod assembly 500 to switch from the first position to the second position, and the movement of the connecting rod assembly 500 causes the outer sleeve 221 to displace so that the jaw assembly 300 switches from the open position to the closed position; at the same time, the movement of the connecting rod assembly 500 drives the limit member 700 to switch from the locked position to the unlocked position; and the mating member 610 is pressed by the limit member 700 and cannot cooperate with the cutting knife driving member 600, and cannot drive the cutting knife assembly 630. That is, the first actuation causes the jaw assembly 300 to close, and the cutting knife assembly 630 does not move.
- the handle 100 After the first actuation is completed, the handle 100 is released, the handle 100 rebounds to the initial position, the connecting rod assembly 500 is locked in the second position, the handle 100 is separated from the connecting rod assembly 500, and in subsequent actuations, the handle 100 is again When the handle 100 is operated from the initial position to the pressed position, the handle 100 is separated from the connecting rod assembly 500 located in the second position, and only contacts the connecting rod assembly 500 at the end of the movement path of the handle 100, and cannot drive the connecting rod assembly 500 to move. Therefore, the handle 100 will not change the position of the connecting rod assembly 500 during subsequent actuation, and the connecting rod assembly 500 remains in the second position, and the limiter 700 remains in the unlocked position.
- the matching member 610 cooperates with the cutting knife driving member 600, and the handle 100 can drive the matching member 610 to move, drive the cutting knife driving member 600 to move, and then drive the cutting knife assembly 630 to fire.
- the operating assembly also includes an unlocking assembly (not shown in the figure), which is used to release the lock of the connecting rod assembly 500 in the second position.
- the unlocking assembly includes an operating part arranged outside the housing of the operating assembly 400, and an unlocking part located in the housing of the operating assembly to abut the connecting rod assembly 500 located in the second position.
- the unlocking part is linked with the operating part.
- the operating part can be a button arranged on the housing of the operating assembly 400, and the unlocking part is arranged in the operating assembly 400, which is a rod body extending in the up-down direction.
- the button is connected to the rod body.
- the button When the button is not operated, the rod body is located above the connecting rod assembly 500, and the connecting rod assembly 500 is self-locked in the second position; when the medical staff operates the button, the rod body moves downward to abut and push the connecting rod assembly 500, so that the connecting rod assembly 500 is no longer in the second position, so as to release the self-locking state of the connecting rod assembly 500, and the rod body further moves downward to push the connecting rod assembly 500 to switch to the first position, thereby opening the jaw assembly 300.
- the handle 100 when the jaw assembly 300 is opened, the handle 100 is located in the initial position, and the connecting rod assembly 500 moves under the action of the rod body, and stops after abutting against the supporting portion 110 of the handle 100. At this time, the connecting rod assembly 500 is in the first position.
- the connecting rod assembly 500 is in the first position, and the limit member 700 returns to the locked position under the action of the elastic member.
- the surgical instrument provided by the embodiment of the present disclosure is only provided with a handle 100.
- the first actuation of the handle 100 causes the jaw assembly 300 to close for squeezing, and the subsequent actuation causes the cutting knife to advance for firing.
- the overall structure is simple, stable, and easy to operate.
- the matching piece 610 is always connected to the handle 100, and the matching piece 610 can stably drive the cutting knife driving piece 600, making the firing process more stable.
- the self-locking connecting rod assembly 500 keeps the jaw assembly 300 in the closed position, without the need for operation and without the need to set a locking structure, so that the overall structure of the surgical instrument is simple.
- the connecting rod assembly 500 includes a left connecting rod 510 and a right connecting rod 520. The connecting rods on both sides move stably and remain stably in the locked position, which improves the closure of the jaw assembly 300 and tissue Stability of pressing.
- the connecting rod assembly improves the stability of the movement and the locking stability of the connecting rod assembly by disposing the left connecting rod and the right connecting rod, so that the closing of the jaw assembly and the squeezing of the tissue are more stable.
- the embodiments of the present disclosure also provide a surgical instrument, which is generally the same as the surgical instrument in the above embodiments, with the main difference being that the structure of the limiting member 700 is different.
- the position-limiting member 700 includes a stopper 740.
- the stopper 740 When the position-limiting member 700 is in the locked position, the stopper 740 is located between the matching member 610 and the cutting knife driving member 600, separating the cutting knife driving member 600 from the matching member 610 to limit the matching member 610, so that the matching member 610 and the cutting knife driving member 600 cannot be matched.
- the stopper 740 When the position-limiting member 700 is in the unlocked position, the stopper 740 is disengaged from the position between the matching member 610 and the cutting knife driving member 600 to release the limit on the matching member 610, so that the matching member 610 can be matched with the cutting knife driving member 600.
- the stopper 740 is located between the fitting member 610 and the cutting blade drive member 600 when in the locked position, and can stably block the fitting member 610 from mating with the cutting blade drive member 600.
- the stopper 740 has a sufficient length in the direction of movement of the fitting member 610, and can stably limit the fitting member 610 and prevent the fitting member 610 from mating with the cutting blade drive member 600.
- the stopper 740 when the limiting member 700 is located at the locking position, the stopper 740 at least abuts against the matching member 610 of the matching member 610 and the cutting blade driving member 600.
- the meaning of the stopper 740 abutting against at least the matching member 610 and the cutting blade driving member 600 is that the stopper 740 only abuts against the matching member 610, or the stopper 740 abuts against the matching member 610 and the cutting blade driving member 600 at the same time.
- one side (upper side) of the stopper 740 abuts against the cutting blade driving member 600, and the matching member 610 abuts against the other side (lower side) of the stopper 740 under the action of the elastic member 620.
- the upper side of the stopper 740 is separated from the cutting blade driving member 600, and the lower side abuts against the matching member 610.
- the limit member 700 further includes a moving portion 750, which is movably disposed on the frame 410.
- the moving portion 750 is connected to the stop portion 740, and can drive the stop portion 740 to move so that the stop portion 740 is separated from the position between the matching member 610 and the cutting knife driving member 600.
- the connecting rod assembly 500 drives the jaw assembly 300 to move from the open position to the closed position
- the connecting rod assembly 500 drives the moving portion 750 to move, thereby driving the limit member 700 to switch from the locked position to the unlocked position.
- the embodiment is that when the connecting rod assembly 500 switches from the first position to the second position, the connecting rod assembly 500 drives the moving part 750 to move, and the moving part 750 drives the stopping part 740 to move.
- the movable part 750 is slidably disposed on the frame 410, including a sliding part 751 and a guide part 752.
- the sliding part 751 is slidably connected to the frame 410
- the guide part 752 is connected to the sliding part 751.
- the guide part 752 has a guide slope 761.
- the connecting rod assembly 500 resists and pushes the guide part 752 to drive the movable part 750 to move, thereby driving the stop part 740 to disengage from the position between the mating part 610 and the cutting knife driving part 600.
- the frame 410 is provided with a sliding shaft 420 (as shown in FIGS.
- the sliding portion 751 is arranged in an annular shape and is sleeved on the sliding shaft 420, the sliding portion 751 can move along the axial direction of the sliding shaft 420, and the moving portion 750 further includes a spring 770 (as shown in FIGS. 17 , 18 and 20 ), the spring 770 is arranged on a side of the sliding portion 751 away from the stopper 740, and is sleeved on the sliding shaft 420, and is used to apply elastic force to the sliding portion 751.
- a screw 780 is arranged at one end of the sliding shaft 420 away from the frame 410, the screw 780 includes a stud and a nut 782, the stud is screwed into the sliding shaft 420 and cooperates with the sliding shaft 420, the nut 782 is located on the side of the sliding shaft 420 away from the frame 410, one end of the spring 770 abuts against the nut 782, and the other end abuts against the sliding portion 751.
- the guide portion 752 is located below the moving portion 750, and the guide slope 761 has a high side and a low side from top to bottom. In the front-to-back direction, the high side is located between the low side and the stop portion 740.
- the connecting rod assembly 500 gradually moves upward during the process of switching from the first position to the second position, first abutting against the low side of the guide slope 761, pushing the guide portion 752 to move until it abuts against the high side of the guide slope 761.
- the guide portion 752 drives the sliding portion 751 to move relative to the sliding shaft 420 in a direction away from the mating piece 610, thereby driving the stop portion 740 to move to disengage from the position between the mating piece 610 and the cutting knife drive 600.
- the spring 770 is compressed.
- first link 212 and/or the left second link 512 in the connecting rod assembly 500 are provided with a mating bevel 762.
- the connecting rod that contacts the guide portion 752 during the process of switching the connecting rod assembly 500 from the first position to the second position is provided with a mating bevel 762 (as shown in Figure 17).
- the slope of the mating bevel 762 is substantially consistent with that of the guide bevel 761, so as to better promote the movement of the guide portion 752.
- the stop portion 740 is arranged in a sheet shape, and the width of the stop portion 740 is substantially the same as the width of the cutting knife driving component 600, so as to cover the surface of the cutting knife driving component 600, prevent the mating component 610 from mating with the cutting knife driving component 600, and at the same time save the material of the stop portion 740, facilitating the movement of the limiting component 700.
- the embodiments of the present disclosure also provide a surgical instrument, which is generally the same as the surgical instrument in the above embodiments, with the main difference being that the structure of the limiting member 700 is different.
- the position-limiting member 700 is disposed on one of the left first link 511, the left second link 512, the right first link 521, and the right second link 522.
- the position-limiting member 700 moves with the link assembly 500 and switches from the locked position to the unlocked position to release the position-limiting member 610.
- the position-limiting member 700 moves with the link assembly 500 and switches from the locked position to the unlocked position, and the position switching is more stable.
- the left second connecting rod 512 is close to the matching member 610
- the stopper 700 is a rod body provided on the left second connecting rod 512, and forms a certain angle with the left second connecting rod 512.
- the stopper 700 and the left second connecting rod 512 form an acute angle, so that the stopper 700 is tilted and provided on the left second connecting rod 512.
- the stopper 700 is partially staggered with the left second connecting rod 512, and the stopper 700 includes a main body 770 and a blocking part 780.
- the main body 770 is connected to the left second connecting rod 512, and the projection of the main body 770 in the vertical direction falls on the left second connecting rod 512.
- the blocking part 780 is connected to the main body 770, and can be integrally formed with the main body 770, and protrudes in the direction where the matching member 610 is located.
- the projection of the matching member 610 in the vertical direction does not fall on the left second connecting rod 512, so as to avoid interference with the moving connecting rod assembly 500.
- the overall shape of the stopper 700 is inclined, and its head and tail ends are both flat, and the blocking portion 780 has a supporting surface 781, which specifically includes a slope 7811 and two planes 7812 connected to the head and tail ends of the slope 7811.
- the stopper 700 When the connecting rod assembly 500 is in the first position, the stopper 700 is in the locking position, and the stopper 700 supports the extension protrusion 612 of the matching member 610 through the supporting surface 781, specifically, supports the extension protrusion 612 through the slope 7811, and the extension protrusion 612 is columnar and can move along the slope 7811.
- the matching member 610 has a tendency to move toward the direction of the cutting knife driving member 600 (towards the head end) under the action of the elastic member 620, and the plane 7812 connected to the head end of the slope 7811 can prevent the matching member 610 from separating from the supporting surface 781.
- the stopper 700 is driven to move upward and rotate, so that the extension protrusion 612 of the matching member 610 and the abutment surface 781 move relative to each other, specifically, the extension protrusion 612 moves toward the tail end along the inclined surface 7811 and separates from the flat surface 7812 at the tail end, and the elastic member 620 is gradually released during this process.
- the stopper 700 is located above the extension protrusion 612 as a whole, the elastic member 620 is completely released, the matching member 610 is matched with the cutting knife driving member 600, and is separated from the stopper 700, and the stopper 700 will not prevent the matching member 610 from subsequently driving the cutting knife driving member 600.
- the left connecting rod 510 and the right connecting rod 510 in the connecting rod assembly 500 are The rod 520 may also be referred to as the first link assembly and the second link assembly, respectively; the left first link 511 and the left second link 512 in the left link 510 may respectively be referred to as the first link of the left link 510 and the second link of the left link 510, or may also be referred to as the first link in the first link assembly and the second link in the first link assembly; the right first link 521 and the right second link 522 in the right link 520 may respectively be referred to as the first link in the right link 520 and the second link in the right link 520, or may also be referred to as the first link in the second link assembly and the second link in the second link assembly, respectively.
- the left link 510 and the right link 520 are relative to the handle 100.
- the left link 510 is located on the left side of the handle 100
- the right link 520 is located on the right side of the handle 100.
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Abstract
提供一种外科器械,包括:操作组件与操作组件连接的钳口组件和切割刀组件,操作组件包括:手柄;闭合机构,与钳口组件连接;限位件,在锁定位置时,限位件限位配合件以阻止配合件与切割刀驱动件的配合;响应于手柄的第一次致动,闭合机构驱动钳口组件从打开位置切换至闭合位置并使钳口组件保持在闭合位置,并且驱动限位件从锁定位置切换至解锁位置;限位件在解锁位置时,限位件解除对配合件的限位以使配合件能够与切割刀驱动件配合。手柄在第一次致动使钳口组件闭合进行压榨,后续致动使切割刀进刀进行击发,整体结构简洁,操作简便。同时配合件始终与手柄连接,配合件能够稳定地驱动切割刀驱动件,使击发过程更加稳定。
Description
相关申请的交叉引用
出于所有目的,本专利申请要求于2023年2月2日递交的中国专利申请第202310071455.1号、于2023年2月2日递交的中国专利申请第202310073005.6号、以及于2023年2月2日递交的中国专利申请第202310101754.5号的优先权,在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
本公开的实施例涉及一种外科器械。
外科切割吻合器是医学上常用的一种替代手工缝合的器械,主要工作原理是利用切割刀对组织进行离断和利用钛钉对组织进行吻合,类似于订书机。根据适用于不同的身体部位可分为多种吻合器,对于外科切割吻合器,其工作原理是通过在手术部位精确定位的穿刺器的套管进入患者体内,继而在组织中制造纵向切口和在切口的相对侧施加吻合钉,从而对组织进行离断和吻合。
外科器械包括钳口组件、切割刀组件和操作组件,操作组件与钳口组件和切割刀组件连接,在进行手术时,医护人员对操作组件进行操作,首先使钳口组件闭合对患者组织进行压榨,切割刀组件能够进刀切割组织,同时击发钉仓中的吻合钉缝合。
发明内容
一方面,本公开的实施例提供一种外科器械,能够通过单手柄控制钳口闭合和切割刀进刀(击发),结构简单,操作方便,且锁定方便稳定。
本公开的实施例提供一种外科器械,包括:操作组件、与所述操作组件连接的钳口组件和切割刀组件,所述操作组件包括:机架;手柄,可转动地连接于所述机架,其被操作以进行第一次致动和后续致动;连杆组件,包括第一连杆和第二连杆,所述第一连杆与所述钳口组件连接,所述第二连杆一端可转动
地连接于所述机架,另一端可转动地连接于所述第一连杆;响应于所述手柄的所述第一次致动,所述连杆组件从第一位置切换至第二位置以驱动所述钳口组件闭合;所述连杆组件位于所述第一位置时,所述第一连杆和所述第二连杆互成一角度,所述连杆组件位于所述第二位置时,所述第一连杆与所述第二连杆共线或大体共线,使所述连杆组件自锁于所述第二位置;切割刀驱动件,与所述切割刀组件连接;配合件,连接于所述手柄;限位件,所述连杆组件位于所述第一位置时,所述限位件限位所述配合件以使所述配合件与所述切割刀驱动件分离;所述连杆组件位于所述第二位置时,限位件解除对所述配合件的限位以使所述配合件能够与所述切割刀驱动件配合,响应于所述手柄的所述后续致动,所述配合件驱动所述切割刀驱动件运动,进而驱动所述切割刀组件。
例如,所述手柄设置有承托部;所述手柄通过所述承托部承托所述第一连杆或所述第二连杆以驱动所述连杆组件移动,使得所述连杆组件从所述第一位置切换至所述第二位置;所述连杆组件处于所述第二位置时,所述承托部在所述手柄进行所述后续致动时与所述连杆组件分离。
例如,所述限位件可运动地设于所述机架,所述限位件具有锁定位置和解锁位置;所述限位件在所述锁定位置限位所述配合件,以阻止所述配合件与所述切割刀驱动件配合;从所述第一位置切换至所述第二位置的过程中,所述连杆组件驱动所述限位件从所述锁定位置运动至所述解锁位置,所述连杆组件处于所述第二位置时所述限位件位于所述解锁位置;在所述解锁位置,所述限位件解除对所述配合件的限位,以使所述配合件能够与所述切割刀驱动件配合,响应于所述手柄的所述后续致动,所述配合件驱动所述切割刀驱动件运动,进而驱动所述切割刀组件。
例如,所述限位件处于所述锁定位置时抵压所述配合件,以限位所述配合件;所述限位件处于所述解锁位置时与所述配合件分离,以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
例如,所述限位件包括本体部、抵压部和凸起部,所述本体部可转动地连接于所述机架,所述抵压部连接于所述本体部,所述限位件处于所述锁定位置时,通过所述抵压部抵压所述配合件;所述凸起部设置于所述本体部,所述连杆组件驱动所述凸起部以驱动所述限位件从所述锁定位置切换至所述解锁位
置。
例如,所述限位件设置于所述第一连杆或所述第二连杆,所述连杆组件从所述第一位置切换至所述第二位置的过程中,所述限位件随所述连杆组件移动,从锁定位置切换至解锁位置以解除对所述配合件的限位。
例如,所述限位件包括主体部和阻挡部,所述主体部连接于所述第一连杆或第二连杆,所述阻挡部连接于所述主体部,并向所述配合件所在的方向凸起,所述阻挡部具有抵持面;所述限位件位于所述锁定位置时,所述抵持面抵持所述配合件以限位所述配合件;所述限位件从所述锁定位置切换至所述解锁位置的过程中,所述抵持面与所述配合件相对运动至所述配合件脱离所述抵持面,以解除对所述配合件的限位。
例如,所述限位件包括止挡部,所述限位件处于所述锁定位置时,所述止挡部位于所述配合件与所述切割刀驱动件之间以限位所述配合件,将所述切割刀驱动件与所述配合件分离;所述限位件处于所述解锁位置时,所述止挡部脱离所述配合件与所述切割刀驱动件之间以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
例如,所述限位件位于所述锁定位置时,所述止挡部至少与所述配合件和所述切割刀驱动件中的所述配合件抵持。
例如,所述限位件还包括可运动地设置于所述机架的移动部,所述移动部与所述止挡部连接,所述连杆组件驱动所述钳口组件从打开位置运动至闭合位置的过程中,所述连杆组件驱动所述移动部运动,所述移动部带动所述止挡部位移以脱离所述配合件与所述切割刀驱动件之间。
例如,所述移动部可滑动地设置于所述机架,所述移动部包括滑动部和导向部,所述滑动部与所述机架滑动连接,所述导向部连接于所述滑动部;所述连杆组件驱动所述钳口组件从打开位置运动至闭合位置的过程中,所述连杆组件抵持并推动所述导向部,以驱动所述移动部运动。
例如,所述配合件包括延伸凸起,所述连杆组件位于所述第一位置时,所述限位件作用于所述延伸凸起以限位所述配合部;所述连杆组件位于所述第二位置时,所述限位件与所述延伸凸起分离以解除对所述配合件的限位。
例如,所述配合件可运动地连接于所述手柄,所述手柄与所述配合件之间设有弹性件,所述配合件在所述弹性件提供的弹力的作用下向所述切割刀驱
动件运动。
例如,所述切割刀驱动件为有齿件,所述配合件为棘爪,可转动地连接于所述手柄,所述弹性件为扭簧,所述配合件在所述扭簧提供的弹力的作用下向所述切割刀驱动件运动。
另一方面,本公开的实施例提供一种外科器械,能够通过单手柄控制钳口闭合和切割刀进刀(击发),结构简单,操作方便,且手柄不会被卡住,稳定性高。
本公开的实施例提供一种外科器械,包括:操作组件与所述操作组件连接的钳口组件和切割刀组件,所述操作组件包括:手柄,可被操作以进行第一次致动和后续致动;闭合机构,与所述钳口组件连接;切割刀驱动件,与所述切割刀组件连接;配合件,连接于所述手柄;限位件,具有锁定位置和解锁位置,在所述锁定位置时,所述限位件限位所述配合件以阻止所述配合件与所述切割刀驱动件配合;响应于所述手柄的第一次致动,所述闭合机构驱动所述钳口组件从打开位置切换至闭合位置并使所述钳口组件保持在所述闭合位置,并且驱动所述限位件从所述锁定位置切换至所述解锁位置;在所述钳口组件处于所述闭合位置时,所述限位件处于所述解锁位置;所述限位件在所述解锁位置时,所述限位件解除对所述配合件的限位以使所述配合件能够与所述切割刀驱动件配合,响应于所述手柄的后续致动,所述配合件驱动所述切割刀驱动件运动,进而驱动所述切割刀组件。
例如,所述限位件处于所述锁定位置时抵压所述配合件,以限位所述配合件;所述限位件处于所述解锁位置时与所述配合件分离,以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
例如,所述操作组件还包括机架,所述限位件可运动地设置于所述机架,所述限位件从所述锁定位置切换至所述解锁位置时,所述限位件运动以与所述配合件分离。
例如,所述限位件包括本体部、抵压部和凸起部,所述本体部可转动地设置于所述机架,所述抵压部连接于所述本体部,所述限位件处于所述锁定位置时,所述抵压部抵压所述配合件;所述凸起部设置于所述本体部,所述闭合机构抵接所述凸起部以驱动所述凸起部进而驱动所述限位件从所述锁定位置切换至所述解锁位置。
例如,所述限位件包括止挡部,所述限位件处于所述锁定位置时,所述止挡部位于所述配合件与所述切割刀驱动件之间以限位所述配合件,将所述切割刀驱动件与所述配合件隔开;所述限位件处于所述解锁位置时,所述止挡部脱离所述配合件与所述切割刀驱动件之间以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
例如,所述限位件位于所述锁定位置时,所述止挡部至少与所述配合件和所述切割刀驱动件中的所述配合件抵持。
例如,所述操作组件还包括机架,所述限位件还包括可运动地设置于所述机架的移动部,所述移动部与所述止挡部连接,所述闭合机构驱动所述钳口组件从打开位置切换至闭合位置的过程中,所述闭合机构驱动所述移动部运动,所述移动部带动所述止挡部位移以脱离所述配合件与所述切割刀驱动件之间。
例如,所述移动部可滑动地设置于所述机架,所述移动部包括滑动部和导向部,所述滑动部与所述机架滑动连接,所述导向部连接于所述滑动部;所述闭合机构驱动所述钳口组件从所述打开位置切换至所述闭合位置的过程中,所述闭合机构抵持并推动所述导向部,以驱动所述移动部运动。
例如,所述配合件可运动地连接于所述手柄,所述手柄与所述配合件之间设有弹性件,所述配合件在所述弹性件提供的弹力的作用下向所述切割刀驱动件运动。
例如,所述切割刀驱动件为有齿件,所述配合件包括棘爪,所述棘爪可转动地连接于所述手柄,所述弹性件为扭簧,所述棘爪在所述扭簧提供的弹力的作用下向所述切割刀驱动件运动。
例如,所述闭合机构包括杆身驱动件和杆身组件,所述杆身组件连接于所述钳口组件,所述杆身驱动件连接于所述杆身组件,所述手柄进行所述第一次致动时,所述手柄与所述杆身驱动件可操作地接合以驱动所述杆身驱动件从第一位置切换至所述第二位置,进而驱动所述杆身组件运动使所述钳口组件从所述打开位置切换至所述闭合位置;从所述第一位置切换至所述第二位置的过程中,所述杆身驱动件驱动所述限位件从所述锁定位置切换至所述解锁位置。
例如,所述闭合机构还包括锁定件,所述杆身驱动件位于所述第二位置时,所述锁定件锁定所述杆身驱动件,使所述钳口组件保持在所述闭合位置。
例如,所述锁定件包括销,所述销在所述杆身驱动件位于所述第二位置时抵持所述杆身驱动件,阻挡所述杆身驱动件向所述第一位置运动,进而锁定所述杆身驱动件。
例如,所述杆身驱动件包括连杆组件,所述连杆组件包括第一连杆和第二连杆,所述第一连杆可转动地连接于所述杆身组件,所述第二连杆的一端可转动地与所述第一连杆连接,另一端可转动地连接于所述机架;所述手柄与所述第一连杆或所述第二连杆接触,使所述手柄在第一次致动时驱动所述连杆组件,以使所述连杆组件从所述第一位置切换至所述第二位置;所述连杆组件位于所述第二位置时,所述连杆组件位于死点或大体位于死点,以使所述连杆组件锁定于所述第二位置。
例如,所述手柄设置有承托部;所述手柄通过所述承托部承托所述第一连杆或所述第二连杆以驱动所述连杆组件移动,使得所述连杆组件从所述第一位置切换至所述第二位置;所述连杆组件处于所述第二位置时,所述承托部在所述手柄进行所述后续致动时与所述连杆组件分离。
再一方面,本公开的实施例提供一种外科器械,提升钳口组件闭合和组织压榨的稳定性。
本公开的实施例提供一种外科器械,包括:操作组件、与所述操作组件连接的钳口组件,所述操作组件包括:机架;手柄,可转动地连接于所述机架,连杆组件,包括左侧连杆和右侧连杆,所述左侧连杆和所述右侧连杆分别位于所述机架的两侧,所述左侧连杆与所述右侧连杆连接,所述手柄与所述左侧连杆和/或所述右侧连杆可操作地接合,以驱动所述连杆组件运动;响应于所述连杆组件的运动,所述钳口组件从打开位置运动至闭合位置。
例如,所述左侧连杆包括左第一连杆和左第二连杆,所述左第一连杆连接所述钳口组件,左第二连杆一端可转动地连接于所述机架,另一端可转动地连接所述左第一连杆;所述右侧连杆包括右第一连杆和右第二连杆,所述右第一连杆连接所述钳口组件,所述右第二连杆一端可转动地连接于所述机架,另一端可转动地连接所述右第一连杆;所述左第二连杆与所述右第二连杆连接。
例如,所述手柄驱动所述连杆组件从第一位置运动至第二位置,所述连杆组件位于所述第一位置时,所述左第一连杆和所述左第二连杆互成第一角度,所述右第一连杆与所述右第二连杆互成所述第一角度;所述连杆组件位于所
述第二位置时,所述左第一连杆与所述左第二连杆共线或大体共线,所述右第一连杆与所述右第二连杆共线或大体共线。
例如,所述手柄可被操作以进行第一次致动和后续致动,所述手柄在所述第一次致动时驱动所述连杆组件从第一位置运动至第二位置;所述操作组件还包括:切割刀驱动件,与切割刀组件连接;配合件,连接于所述手柄;限位件,所述连杆组件位于所述第一位置时,所述限位件限位所述配合件以使所述配合件与所述切割刀驱动件分离;所述连杆组件位于所述第二位置时,限位件解除对所述配合件的限位以使所述配合件能够与所述切割刀驱动件配合,响应于所述手柄的所述后续致动,所述配合件驱动所述切割刀驱动件运动,进而驱动所述切割刀组件。
例如,所述配合件可运动地连接于所述手柄,所述手柄与所述配合件之间设有弹性件,所述配合件在所述弹性件提供的弹力的作用下向所述切割刀驱动件运动。
例如,所述切割刀驱动件为有齿件,所述配合件包括棘爪,所述棘爪可转动地连接于所述手柄,所述弹性件为扭簧,所述棘爪在所述扭簧提供的弹力的作用下向所述切割刀驱动件运动。
例如,所述限位件可运动地设于所述机架;所述限位件在锁定位置限位所述配合件,以阻止所述配合件与所述切割刀驱动件配合;从所述第一位置切换至所述第二位置的过程中,所述连杆组件驱动所述限位件从所述锁定位置运动至解锁位置,所述连杆组件处于所述第二位置时所述限位件位于所述解锁位置;在所述解锁位置,所述限位件解除对所述配合件的限位,以使所述配合件能够与所述切割刀驱动件配合,响应于所述手柄的所述后续致动,所述配合件驱动所述切割刀驱动件运动,进而驱动所述切割刀组件。
例如,所述限位件包括本体部、抵压部和凸起部,所述本体部可转动地设置于所述机架,所述抵压部连接于所述本体部,所述限位件处于所述锁定位置时,所述抵压部抵压所述配合件;所述凸起部设置于所述本体部,所述闭合机构抵接所述凸起部以驱动所述凸起部进而驱动所述限位件从所述锁定位置切换至所述解锁位置。
例如,所述限位件包括止挡部,所述限位件处于所述锁定位置时,所述止挡部位于所述配合件与所述切割刀驱动件之间以限位所述配合件,将所述切
割刀驱动件与所述配合件隔开;所述限位件处于所述解锁位置时,所述止挡部脱离所述配合件与所述切割刀驱动件之间以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
例如,所述限位件位于所述锁定位置时,所述止挡部至少与所述配合件和所述切割刀驱动件中的所述配合件抵持。
例如,所述限位件还包括可运动地设置于所述机架的移动部,所述移动部与所述止挡部连接,所述闭合机构驱动所述钳口组件从打开位置切换至闭合位置的过程中,所述闭合机构驱动所述移动部运动,所述移动部带动所述止挡部位移以脱离所述配合件与所述切割刀驱动件之间。
例如,所述移动部可滑动地设置于所述机架,所述移动部包括滑动部和导向部,所述滑动部与所述机架滑动连接,所述导向部连接于所述滑动部;所述闭合机构驱动所述钳口组件从所述打开位置切换至所述闭合位置的过程中,所述闭合机构抵持并推动所述导向部,以驱动所述移动部运动。
例如,所述限位件设于所述左侧连杆或所述右侧连杆,所述连杆组件从所述第一位置切换至所述第二位置的过程中,所述限位件随所述连杆组件移动,从锁定位置切换至解锁位置以解除对所述配合件的限位。
例如,所述连杆组件还包括连接部,所述连接部一端与所述左第二连杆可转动地连接,另一端与所述右第二连杆可转动地连接。
例如,所述连接部包括:夹板、左铰接部和右铰接部,所述夹板连接于所述机架,所述左铰接部和所述右铰接部分别设于所述夹板两侧,所述左铰接部与所述左第二连杆可转动地连接,所述右铰接部与所述右第二连杆可转动地连接。
例如,所述左第一连杆包括左第一铰接孔和左中部铰接孔,所述左第一连杆通过所述左第一铰接孔与所述钳口组件可转动地连接,所述左第一连杆通过所述左中部铰接孔与所述左第二连杆可转动地连接;所述右第一连杆包括右第一铰接孔和右中部铰接孔,所述右第一连杆通过所述右第一铰接孔与所述钳口组件可转动地连接,所述右第一连杆通过所述右中部铰接孔与所述右第二连杆可转动地连接;所述左第一铰接孔与所述右第一铰接孔同轴设置,所述左中部铰接孔与所述右中部铰接孔同轴设置。
例如,所述操作组件还包括外套管,所述外套管连接于所述钳口组件,所
述左第一连杆和所述右第一连杆均可转动地连接于所述外套管。
例如,所述手柄包括手柄本体和连接于所述手柄本体的承托部,所述承托部承托所述左侧连杆和/或所述右侧连杆,以使所述手柄与左侧连杆和/或所述右侧连杆可操作地接合。
为了更清楚地说明本公开实施例的技术方案,下面将对实施例的附图作简单地介绍,显而易见地,下面描述中的附图仅仅涉及本公开的一些实施例,而非对本公开的限制。
图1是本公开的实施例提供的外科器械的结构示意图;
图2是本公开的实施例提供的外科器械在第一次致动前的结构示意图;
图3是本公开的实施例提供的外科器械在第一次致动后的结构示意图;
图4是本公开的实施例提供的外科器械的另一种凸起部与连杆组件接触时的结构示意图;
图5是本公开的实施例提供的外科器械的另一种凸起部在连杆组件处于第二位置时的结构示意图;
图6a是本公开的实施例提供的外科器械的限位部处于锁定位置时的结构示意图;
图6b是本公开的实施例提供的外科器械的限位部处于锁定位置时的结构示意图;
图6c是图6b中A处的局部示意图;
图7是本公开的实施例提供的外科器械的限位部处于解锁位置时的结构示意图;
图8是本公开的实施例提供的外科器械的配合件的结构示意图;
图9是本公开的实施例提供的外科器械的配合件与切割刀驱动件配合的结构示意图;
图10是本公开的实施例提供的外科器械的手柄后续致动驱动切割刀组件的结构示意图;
图11是本公开的实施例提供的外科器械的切割刀组件与切割刀驱动件的结构示意图;
图12是本公开的实施例提供的外科器械的棘爪与手柄的结构示意图;
图13是本公开的实施例提供的外科器械的棘爪未与切割刀驱动件啮合的结构示意图;
图14是本公开的实施例提供的外科器械的另一种限位件的结构示意图;
图15是本公开的实施例提供的外科器械的限位件另一个角度的结构示意图;
图16是本公开的实施例提供的外科器械的限位件位于锁定位置时的结构示意图;
图17是本公开的实施例提供的限位件位于锁定位置时,外科器械的剖视图;
图18是本公开的实施例提供的外科器械的限位件向解锁位置运动时的结构示意图;
图19是本公开的实施例提供的外科器械的限位件位于解锁位置时的结构示意图;
图20是本公开的实施例提供的外科器械的限位件位于解锁位置时,外科器械的剖视图;
图21是本公开的实施例提供的外科器械的再一种限位件的结构示意图;
图22是本公开的实施例提供的限位件位于锁定位置时,外科器械的结构示意图;
图23是本公开的实施例提供的外科器械的限位件向解锁位置切换时的结构示意图;
图24是本公开的实施例提供的限位件位于解锁位置时,外科器械的结构示意图;
图25是本公开的实施例提供的外科器械的锁定件未锁定连杆组件的结构示意图;
图26是本公开的实施例提供的外科器械的锁定件锁定连杆组件的结构示意图;
图27是本公开的实施例提供的外科器械的连杆组件和锁定件的结构示意图;
图28是本公开的实施例提供的外科器械的连杆组件与锁定件接触时的结
构示意图;
图29是本公开的实施例提供的外科器械的连杆组件通过锁定件后的结构示意图;
图30是本公开的实施例提供的一种外科器械的手柄的结构示意图;
图31是本公开的实施例提供的一种外科器械的结构示意图;
图32是本公开的实施例提供的一种外科器械的连杆组件的结构示意图;
图33是本公开的实施例提供的一种外科器械的左侧连杆和右侧连杆的结构示意图;
图34是本公开的实施例提供的一种外科器械的连杆组件的俯视图;
图35是本公开的实施例提供的一种外科器械的连接件和连杆组件的结构示意图;
图36是图35中A处的局部示意图;
图37是图32中A-A’处的剖视图;
图38是本公开的实施例提供的一种外科器械在第一次致动前的结构示意图;
图39是本公开的实施例提供的一种外科器械在第一次致动后的结构示意图。
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例的附图,对本公开实施例的技术方案进行清楚、完整地描述。显然,所描述的实施例是本公开的一部分实施例,而不是全部的实施例。基于所描述的本公开的实施例,本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例,都属于本公开保护的范围。
需要理解的是,本文所用术语“近侧”和“远侧”是相对于操纵吻合器的手柄的临床医生而言的。术语“近侧”是指靠近临床医生的部分,术语“远侧”则是指远离临床医生的部分。即手柄为近侧,钳口组件为远侧,如某个零部件的近侧端表示相对靠近手柄的一端,远侧端则表示相对靠近钳口组件的一端。术语“上”“下”以钳口组件的抵钉座和钉仓座的相对位置为参考,具体的,抵钉座在“上”,钉仓座在“下”。然而,吻合器可以在许多方向和位置使用,
因此这些表达相对位置关系的术语并不是受限和绝对的。
在本公开的实施例中,除非另有明确的规定和限定,“相连”、“连接”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸地连接,还可以是可运动地连接,或成一体;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系如抵接。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本公开的实施例中的具体含义。需要说明的是,在“相连”、“连接”前有限定语时,其具有相应限定语所限定的含义,只排除明显需要排除的情形,不排除其它可能的情形,如“可拆卸地连接”指的是可拆卸式的连接,不包括成一体,但可运动连接等并不排除在外。
在通常技术中,操作组件一般设置有两个手柄,分别控制钳口闭合和切割刀进刀,结构复杂,操作繁琐。
通常技术中存在单个手柄能够控制钳口闭合和切割刀进刀的吻合器,包括手柄、凸轮、连杆、齿条和棘轮组件,手柄连接凸轮,手柄在第一次致动前,棘轮组件与手柄、棘轮组件与齿条均分离,手柄进行第一次致动时,凸轮转动驱动连杆移动使钳口闭合,凸轮转动后被弹簧机构锁定,同时凸轮转动让位使棘轮组件移动,移动后的棘轮组件同时与手柄及齿条啮合,使手柄能够在后续致动时驱动钳口齿条,进而驱动切割刀。凸轮通过弹簧组件锁定结构复杂,且锁定稳定性差,容易出现锁定失误,造成钳口重新张开的情况。
本公开的实施例提供一种外科器械,可以为吻合器,包括操作组件和与操作组件连接的钳口组件和切割刀组件,操作组件包括闭合机构、手柄、切割刀驱动件、配合件和限位件,其中闭合机构与钳口组件连接,切割刀驱动件与切割刀组件连接,配合件连接于手柄且用于与切割刀驱动件配合。手柄可被操作以进行第一次致动和后续致动,手柄的第一次致动会使闭合机构驱动钳口组件从打开位置切换至闭合位置,后续致动在第一次致动后进行,在后续致动时,驱动切割刀组件前进以进行击发。
闭合机构包括连杆组件。连杆组件包括第一连杆和第二连杆,第一连杆与钳口组件连接,第二连杆一端可转动地连接于机架,另一端可转动地连接于第一连杆;响应于手柄的第一次致动,连杆组件从第一位置切换至第二位置以驱动钳口组件闭合;连杆组件位于第一位置时,第一连杆和第二连杆互成一角
度,连杆组件位于第二位置时,第一连杆与第二连杆共线或大体共线,使连杆组件自锁于第二位置。
共线指的是:第一连杆与第二连杆位于同一直线上,两者之间的夹角为180°。大体共线指的是:第一连杆和第二连杆越过死点位置,且第一连杆与第二连杆之间的夹角大于0°且小于5°,在连杆组件位于死点(对应于共线)或大体位于死点(对应于大体共线)时,第一连杆与第二连杆之间的压力角大体等于90°,第一连杆或第二连杆受到外力时,对另一连杆的力矩为零,使连杆组件无法运动,使连杆组件自锁于第二位置。从而使得钳口组件锁定于闭合位置。
限位件具有锁定位置和解锁位置,在锁定位置,限位件限位配合件以阻止配合件与切割刀驱动件的配合,限位是指:限位件对配合件施加作用力,阻止配合件与切割刀组件配合。在解锁位置,限位件解除对配合件的限位,具体为不再向配合件施加作用力,使配合件能够与切割刀组件配合。
在进行第一致动前,钳口组件处于打开位置,限位件处于锁定位置,响应于手柄的第一次致动,闭合机构驱动钳口组件从打开位置切换至闭合位置并使钳口组件保持在闭合位置,即实现钳口组件的闭合并保持压榨;同时闭合机构驱动限位件从锁定位置切换至解锁位置,闭合机构使钳口组件保持在闭合位置时,限位件处于解锁位置,配合件能够与切割刀驱动件配合。
值得注意的是,手柄第一次致动的过程中,限位件处于锁定位置,配合件未与切割刀驱动件配合,因此手柄的第一次致动仅能驱动钳口组件闭合,无法驱动切割刀进刀。第一次致动结束使限位件处于解锁位置,配合件能够与切割刀驱动件配合,手柄在后续致动时可以通过配合件和切割刀驱动件驱动切割刀组件进刀以进行击发。
手柄进行后续致动时,通过配合件和切割刀驱动件驱动切割刀组件进刀以进行击发。同时,手柄不作用于闭合机构,钳口组件保持在闭合位置,限位件保持在解锁位置。
本公开的实施例提供的外科器械仅设有一个手柄,手柄在第一次致动使钳口组件闭合进行压榨,后续致动使切割刀进刀进行击发,整体结构简洁,操作方便。
本公开的实施例提供一种外科器械,可以为吻合器,如图1和图11所示,
包括操作组件400和与操作组件400连接的钳口组件300和切割刀组件630,钳口组件300包括钉仓座310和抵钉座320,钉仓座310内可拆卸地安装有钉仓组件(图中未示出),抵钉座320可转动地连接于钉仓座310,抵钉座320的转动使钳口组件300具有打开位置和闭合位置,响应于医护人员对操作组件400的操作,钳口组件300能够在打开位置与闭合位置之间切换,钳口组件300位于打开位置时,组织可以进入钳口组件300内,钳口组件300位于闭合位置时,能够压榨组织。在组织处于被压榨状态时,响应于医护人员对操作组件400的操作,切割刀组件630前进以切割组织,且钉仓组件出钉缝合被切开的组织。
例如,如图2和图3所示,操作组件400包括机架410、手柄100、闭合机构200、切割刀驱动件600、配合件610和限位件700。例如,手柄100可转动的设置于机架410,手柄100与机架410之间设有弹性组件,具有初始位置和按压位置,医护人员可以通过按压手柄100使手柄100从初始位置运动至按压位置,松开手柄100时,手柄100在弹性组件的作用下能够从按压位置回弹至初始位置,手柄100从初始位置向按压位置运动的过程称为致动,在外科手术的过程中,手柄100被操作以进行多次致动,包括第一次致动和后续致动,后续致动为除第一次致动以外的其他次致动,其中第一次致动能够驱动钳口组件300切换至闭合位置以压榨组织,后续致动能够驱动切割刀组件630前进以进行击发。
例如,如图2所示,闭合机构200包括连杆组件211和杆身组件220,杆身组件220连接于钳口组件300,连杆组件211连接于杆身组件220,手柄100在进行第一次致动时,手柄100与连杆组件211可操作地接合,使手柄100能够驱动连杆组件211运动,连杆组件211在运动时能够带动杆身组件220运动,进而使钳口组件300从打开位置切换至闭合位置。例如,杆身组件220包括内套管222和外套管221,外套管221环套于内套管222外,且外套管221能够与内套管222相对移动,外套管221的一端连接连杆组件211,外套管221的另一端连接钳口组件300。响应于手柄100的第一次致动,连杆组件211从第一位置切换至第二位置以驱动外套管221移动,外套管221的移动使钳口组件300从打开位置切换至闭合位置。当手柄100切换至按压位置后,连杆组件211被锁定于第二位置,进而使外套管221位置锁定,钳口组件300保
持在闭合位置。在手柄100从按压位置回弹至初始位置时,连杆组件211保持在第二位置不随手柄100运动,外套管221也保持在使钳口组件300位于闭合位置的位置。
如图2所示,连杆组件211包括第一连杆212和第二连杆213,第一连杆212可转动地连接于杆身组件220,具体为连接于外套管221;第二连杆213的一端可转动地连接于机架410,第二连杆213的另一端可转动地与第一连杆212连接,形成一个二连杆机构。如图2所示,连杆组件211位于第一位置,连杆组件211位于第一位置时,第一连杆212和第二连杆213互成一定角度,且第一连杆212和第二连杆213均向下侧(靠近手柄100握持部的一侧)倾斜。连杆组件211位于第一位置且手柄100未进行第一次致动时,手柄100与第一连杆212或第二连杆213接触,使手柄100能够驱动连杆组件211运动,例如,第一连杆212的远端可转动地连接外套管221,第一连杆212的近端可转动地连接第二连杆213,第一连杆212与第二连杆213通过铰接点可转动地连接。连杆组件211从第一位置切换至第二位置的过程中,铰接点逐渐向上侧(远离手柄100握持部的一侧)移动,由于第二连杆213的近端连接于机架410,因此位于第二连杆213远端的铰接点向远端移动,同时第一连杆212的转动使得第一连杆212的远端朝向远端移动,因此连杆组件211能够驱动外套管221向远端移动,以使钳口组件300闭合。
如图3所示,连杆组件211位于第二位置,连杆组件211位于第二位置时,连杆组件211的第一连杆212和第二连杆213共线或大体共线,共线指的是:第一连杆212与第二连杆213位于同一直线上,两者之间的夹角为180°。大体共线指的是:第一连杆212和第二连杆213越过死点位置,且第一连杆212与第二连杆213之间的夹角大于0°且小于5°,在连杆组件211位于死点时,第一连杆212与第二连杆213之间的压力角大体等于90°,第一连杆212或第二连杆213受到外力时,对另一连杆的力矩为零,使连杆组件211无法运动,使连杆组件211自锁于第二位置。连杆组件211自锁于第二位置使得钳口组件300保持在闭合位置,即,连杆组件在驱动钳口组件闭合后能够自锁,使钳口组件锁定于闭合位置,连杆组件211的自锁无需操作且无需设置锁定结构,使得外科器械整体结构简单,连杆组件211锁定稳定,同时不易发生锁定失效的情况。
如图2和图3所示,响应于手柄100的第一次致动,连杆组件211驱动钳口组件300从打开位置切换至闭合位置,并使钳口组件300保持在闭合位置,以压榨组织,并使组织保持在被压榨的状态。在手柄100从按压位置回弹至初始位置时,连杆组件211不会随手柄100的释放回弹而运动,始终保持在使钳口组件300位于闭合位置的状态,手柄100在后续致动时,无法驱动连杆组件211运动,也无法改变钳口组件300位于闭合位置的状态。
如图11和图12所示,切割刀驱动件600连接切割刀组件630,配合件610连接于手柄100,配合件610与切割刀驱动件600配合时,能够在手柄100的带动下驱动切割刀驱动件600,进而驱动切割刀组件630。
如图2所示,限位件700在连杆组件211位于第一位置时,限位配合件610以使配合件610与切割刀驱动件600分离,故使得手柄100的第一次致动仅能驱动钳口组件300闭合,无法驱动切割刀组件630。如图3所示,在第一次致动完成,连杆组件211处于第二位置时,限位件700解除对配合件610的限位以使配合件610能够与切割刀驱动件600配合,配合件610能够与切割刀驱动件600配合是指:配合件610运动至与切割刀驱动件600配合的位置。在一实施例中,配合件610自动运动以与切割刀驱动件600配合。
本公开的实施例提供的外科器械,仅设有一个手柄100,单个手柄100可以实现压榨和击发的功能,手柄100在第一次致动时能够驱动钳口组件300闭合进行压榨,在后续致动时能够驱动切割刀组件630进行击发,使得外科器械结构和操作更加简单,质量更轻且成本更低,提升外科器械的稳定性和医护人员操作的便利性。本公开的实施例提供的外科器械,整体结构简单,可靠性高,操作方便。
例如,如图30所示,手柄100设有承托部110,承托部110位于连杆组件211下侧,连杆组件211从第一位置切换至第二位置的过程中,手柄100通过承托部110承托第一连杆212或第二连杆213,以与连杆组件211可操作地接合。当连杆组件211处于第二位置后锁定于第二位置,手柄100在复位回弹时承托部110与连杆组件211分离,手柄100进行后续致动时,手柄100从初始位置切换至按压位置,承托部110随手柄100的运动而运动,承托部110仅在手柄100到达按压位置时(承托部110运动轨迹的终点)接触位于第二位置的连杆组件211,即承托部110在运动过程中与连杆组件211不接触,因
此手柄100在后续致动时无法驱动连杆组件211。例如,承托部110为一杆体,手柄100通过承托部110抵持第二连杆213与连杆组件211可操作地接合,在第二连杆213转动的过程中,承托部110能够始终抵持第二连杆213。
如图2和图3所示,限位件700具有锁定位置和解锁位置,图2中限位件700位于锁定位置时,对配合件610限位以阻挡配合件610与切割刀驱动件600配合。在手柄100进行第一次致动前,限位件700位于锁定位置,响应于手柄100第一次致动,连杆组件211驱动钳口组件300从打开位置切换至闭合位置的过程中,连杆组件211同时驱动限位件700从锁定位置切换至解锁位置,如图3所示,连杆组件211使钳口组件300保持在闭合位置,也使限位件700保持在解锁位置。在解锁位置,配合件610能够与切割刀驱动件600配合,手柄100在后续致动时,能够通过配合件610驱动切割刀驱动件600运动,进而驱动切割刀组件630前进以进行击发。
如图2所示,限位件700处于锁定位置时抵压配合件610以对配合件610施加作用力,进而限位配合件610,使配合件610处于无法与切割刀驱动件600配合的位置,阻挡配合件610与切割刀驱动件600的配合;当限位件700处于解锁位置时解除对配合件610的抵压,使配合件610能够与切割刀驱动件600配合。
限位件700可运动地设于机架410,通过运动从锁定位置切换至解锁位置。且限位件700因运动与配合件610分离,以解除对配合件610的抵压,使配合件610能够与切割刀驱动件600配合。例如,限位件700可转动地设于机架410上,连杆组件211能够驱动限位件700转动,限位件700在转动的过程中保持对配合件610的抵压,直至限位件700转动至解锁位置,不再抵压配合件610,即限位件700不再对配合件610施加作用力,使配合件610能够与切割刀驱动件600配合,能够驱动切割刀组件630。
例如,限位件700整体大致呈长条型,包括本体部710和抵压部720,抵压部720连接于本体部710,例如,抵压部720和本体部710一体设置,本体部710可转动地连接于机架410,抵压部720向配合件610所在的方向延伸,限位件700通过抵压部720抵压配合件610,以阻挡配合件610与切割刀驱动件600的配合。进一步的,限位件700还包括一弹力件(图中未示出),弹力件具体可以为扭簧,弹力件连接在本体与机架之间,弹力件向限位件700施
加弹力,使限位件700保持在锁定位置,并为限位件700抵压配合件610提供抵压力,在限位件700被连杆组件211驱动向解锁位置运动时,弹力件压缩。同时弹力件使得手柄100在进行第一次致动前处于锁定位置。限位件700还包括凸起部730,凸起部730设置于本体部710。连杆组件211驱动钳口组件300从打开位置切换至闭合位置的过程中,作用于凸起部730,通过凸起部730带动限位件700转动,连杆组件211不与本体部710或抵压部720接触,以防止造成干涉。连杆组件211使钳口组件300保持在闭合位置时,仍抵持凸起部730,使限位件700保持在解锁位置。
在一实施例中,如图2和图3所示,凸起部730为一杆体,凸起设置于本体部710,使得限位件700在被连杆组件211推动转动时始终能够与连杆组件211抵持。在另一实施例中,如图4至图5所示,凸起部730呈L型设置,包括两个侧边,两个侧边之间形成角部,凸起部730与连杆组件211接触时,首先通过L型凸起部730的角部接触连杆组件211,至限位件700处于解锁位置时,凸起部730通过一侧边与连杆组件211抵持,提升了与连杆组件211的接触面积,进而提升了保持在解锁位置的稳定性。例如,凸起部730与闭合机构200的连杆组件211抵持。
例如,限位件700处于解锁位置时,配合件610自动运动与切割刀驱动件600配合,如图11和图12所示,配合件610可运动地连接于手柄100,手柄100与配合件610之间设有弹性件620,配合件610在弹性件620提供的弹力的作用下向切割刀驱动件600运动,即弹性件620的弹力能够使配合件610向与切割刀驱动件600配合的方向运动。限位件700从锁定位置切换到解锁位置的过程中,结合图5和图6a,在限位件700处于锁定位置时,抵压配合件610,弹性件620被压缩,配合件610无法与切割刀驱动件600配合。在限位件700处于解锁位置时,配合件610不再被抵压,在弹性件620的弹力的作用下,配合件610向与切割刀驱动件600配合的方向运动,即在限位件700切换至解锁位置时,配合件610在弹性件620的作用下自动回弹,与切割刀驱动件600配合。
例如,如图8、图9和图12所示,配合件610包括棘爪611,切割刀驱动件600为有齿件,具体可以为齿条,配合件610与切割刀驱动件600配合时,为棘爪611与有齿件啮合。弹性件620为扭簧,扭簧一端抵持手柄100,
另一端抵持棘爪611,扭簧所提供的弹力使棘爪611向与有齿件配合的位置转动。限位件700位于锁定位置抵压棘爪611时,棘爪611无法与有齿件配合,扭簧被压缩。限位件700切换至解锁位置时解除对棘爪611的抵压,棘爪611在扭簧的作用下转动以与有齿件配合。
手柄100在后续致动时,能够通过自身的转动带动棘爪611运动,如图9和图10所示,手柄100通过铰接轴转动连接于机架410,棘爪611连接在手柄100顶端,手柄100的握持部和棘爪611分别位于铰接轴的两侧,手柄100在被按压时逆时针转动,使棘爪611向远端运动,从而驱动有齿件向远端位移,使切割刀组件630向远端运动以进行击发。手柄100进行后续致动时,以第二次致动为例,手柄100被按压时通过棘爪611驱动有齿件和切割刀组件630运动进行击发;手柄100被释放时顺时针转动回原位,棘爪611向近端位移,棘爪611仅能向远端单向驱动有齿件,棘爪611沿有齿件的表面向近端位移,而有齿件和切割刀组件630不发生移动,即手柄100被释放时,棘爪611向近端移动退回原位,有齿件和切割刀组件630不移动,棘爪611仍与有齿件配合。进行第三次致动时,手柄100、棘爪611、有齿件和切割刀组件630的运动与第二次致动相同。可知本实施例中,手柄100在后续致动时,每一次致动会使切割刀组件630前进一定距离,多次致动可以完成切割刀组件630的全程击发。
另外值得注意的是,限位件700在解除对棘爪611的限位,棘爪611在弹性件620的作用下朝有齿件运动时,棘爪611有一定几率与有齿件啮合,也有一定几率仅与有齿件接触但处于非啮合状态。如图13所示,在棘爪611与有齿件接触但未啮合时,响应于手柄100的后续致动,棘爪611向远端运动,运动的棘爪611能够与有齿件啮合并驱动棘爪611运动。因此棘爪611能够稳定地驱动有齿件运动,进而驱动切割刀组件630运动。
进一步的,如图6a和图8所示,配合件610还包括延伸凸起612,延伸凸起612沿棘爪611的宽度方向延伸设置,限位件700抵压配合件610具体为抵压延伸凸起612,延伸凸起612的设置使限位件700与棘爪611位置错开,避免两者干涉。
由上可知,手柄100的第一次致动,即第一次从初始位置被操作至按压位置的过程中,使连杆组件211从第一位置切换至第二位置,连杆组件211的
运动使杆身组件220位移使钳口组件300从打开位置切换至闭合位置;同时连杆组件211的运动驱动限位件700从锁定位置切换至解锁位置;而在手柄100第一次致动时,配合件610由于被限位件700抵压,无法与切割刀驱动件600配合,无法驱动切割刀组件630。即第一次致动使钳口组件300闭合,且切割刀组件630不运动。完成第一次致动后,松开手柄100,手柄100回弹至初始位置,连杆组件211锁定于第二位置,手柄100与连杆组件211分离,在后续致动时,手柄100再次从初始位置被操作至按压位置,手柄100与位于第二位置的连杆组件211分离,只有在手柄100运动路径的末端才会与连杆组件211接触,无法驱动连杆组件211运动。因此手柄100在后续致动时不会使连杆组件211的位置发生改变,连杆组件211保持在第二位置,限位件700保持在解锁位置。同时后续致动时配合件610与切割刀驱动件600配合,手柄100能够通过驱动配合件610运动,驱动切割刀驱动件600运动,进而驱动切割刀组件630进行击发。
手术结束后,首先通过退刀结构将切割刀组件630退回初始位置,然后开启钳口组件释放人体组织。闭合机构200还包括解锁组件(图中未示出),解锁组件用以解除连杆组件211在第二位置的锁定,解锁组件包括设于操作组件400的壳体外的操作部、位于操作组件壳体内抵持位于第二位置的连杆组件211的解锁部,解锁部与操作部联动,医护人员对操作部进行操作时,解锁部移动推动连杆组件211,使连杆组件211退回第一位置,钳口组件张开释放人体组织。例如,操作部可以为设在操作组件400外壳上的按钮,解锁部设于操作组件400内,为沿上下方向延伸的杆体。按钮与杆体相连接。按钮未被操作时,杆体位于连杆组件211上方,连杆组件211自锁于第二位置;医护人员操作按钮时,使杆体向下移动以抵接推动连杆组件211,使连杆组件211不再处于第二位置,以解除连杆组件211的自锁状态,并且杆体进一步向下移动以推动连杆组件211切换至第一位置,进而使钳口组件300打开。例如,开启钳口组件300时手柄100位于初始位置,连杆组件211在杆体的作用下移动,在抵持手柄100的承托部110后停止,此时连杆组件211处于第一位置。钳口组件300处于打开状态时,连杆组件211处于第一位置,限位件700在弹力件的作用下回到锁定位置。
本公开的实施例提供的外科器械,仅设有一个手柄100,手柄100第一次
致动使钳口组件300闭合进行压榨,后续致动使切割刀进刀进行击发,整体结构简洁,操作方便。同时配合件610始终与手柄100连接,配合件610能够稳定地驱动切割刀驱动件600,使击发过程更加稳定。连杆组件211自锁使钳口组件300保持在闭合位置,无需操作且无需设置锁定结构,使得外科器械整体结构简单,连杆组件211锁定稳定,同时不易发生锁定失效的情况。
本公开的另一实施例提供一种外科器械,大体与上述实施例中的外科器械相同,主要区别在于:限位件700结构不同。
如图14至图20所示,限位件700包括止挡部740,限位件700处于锁定位置时,止挡部740位于配合件610与切割刀驱动件600之间,将切割刀驱动件600与配合件610隔开以限位配合件610,使配合件610与切割刀驱动件600无法配合。限位件700处于解锁位置时,止挡部740脱离配合件610与切割刀驱动件600之间以解除对配合件610的限位,使配合件610能够与切割刀驱动件600配合。
止挡部740在锁定位置时处于配合件610与切割刀驱动件600之间,能够稳定的阻挡配合件610与切割刀驱动件600配合。在第一次致动时,配合件610虽未与切割刀驱动件600配合,但仍在手柄100的驱动下移动,即配合件610相对于切割刀驱动件600滑移,配合件610在手柄的驱动下位移时,始终抵持于止挡部740,止挡部740在配合件610移动的方向上具有足够的长度,能够稳定的限位配合件610,阻止配合件610与切割刀驱动件配合。
例如,限位件700位于锁定位置时,止挡部740至少与配合件610和切割刀驱动件600中的配合件610抵持。止挡部740至少与配合件610抵持的含义是:止挡部740只与配合件610抵持,或者,止挡部740同时与配合件610和切割刀驱动件600抵持。一实施例中,止挡部740的一侧(上侧)抵持切割刀驱动件600,配合件610在弹性件620的作用下抵持止挡部740的另一侧(下侧)。另一实施例中,止挡部740的上侧与切割刀驱动件600分离,下侧与配合件610抵持。
如图14所示,限位件700还包括移动部750,移动部750可运动地设置于机架410,移动部750与止挡部740连接,能够带动止挡部740移动以使止挡部740脱离配合件610与切割刀驱动件600之间。在闭合机构200驱动钳口组件300从打开位置运动至闭合位置的过程中,闭合机构200驱动移动部
750移动,进而驱动限位件700从锁定位置切换至解锁位置。具体为连杆组件211从第一位置切换至第二位置的过程中,连杆组件211驱动移动部750移动,移动部750带动止挡部740运动。
移动部750可滑动地设置于机架410,如图14所示,移动部750包括滑动部751和导向部752,滑动部751与机架410滑动连接,导向部752连接于滑动部751,导向部752具有一导向斜面761(如图15所示),连杆组件211从第一位置切换至第二位置的过程中,连杆组件211抵持并推动导向部752以驱动移动部750运动,进而驱动止挡部740脱离配合件610与切割刀驱动件600之间。例如,如图15、图17和图18所示,机架410设有一滑动轴420,滑动部751呈环形设置,环套于滑动轴420,滑动部751能够沿滑动轴420的轴向方向移动,移动部750还包括一弹簧770,弹簧770设在滑动部751远离止挡部740的一侧,并套设于滑动轴420,用于向滑动部751施加弹力。滑动轴420远离机架410的一端设置有螺钉780,螺钉780包括螺柱和螺帽782,螺柱旋入滑动轴420内与滑动轴420配合,螺帽782位于滑动轴420远离机架410的一侧,弹簧770一端抵持于螺帽782,另一端抵持于滑动部751。导向部752位于移动部750下方,导向斜面761自上至下具有高侧和低侧,在前后方向上高侧位于低侧与止挡部740之间,连杆组件211从第一位置切换至第二位置的过程中逐渐上移,首先抵持导向斜面761的低侧,推动导向部752移动,至抵持导向斜面761的高侧,导向部752在被连杆组件211推动的过程中,带动滑动部751相对于滑动轴420向远离配合件610的方向运动,从而带动止挡部740运动以脱离配合件610与切割刀驱动件600之间,该过程中弹簧770被压缩。
例如,连杆组件211中第一连杆212和/或第二连杆213设有配合斜面762,具体为在连杆组件211从第一位置切换至第二位置的过程中与导向部752接触的连杆设有配合斜面762,配合斜面762与导向斜面761的斜率大体一致,以更好的推动导向部752运动。
例如,如图16和图17所示,止挡部740呈片状设置,止挡部740的宽度大体与切割刀驱动件600的宽度相同,以覆盖切割刀驱动件600的表面,防止配合件610与切割刀驱动件600配合,同时节省了止挡部740的材料,便于限位件700运动。
本公开的实施例提供一种外科器械,大体与上述实施例中的外科器械相同,主要区别在于:限位件700结构不同。
如图21至图24所示,限位件700设于第一连杆212或第二连杆213,连杆组件211从第一位置切换至第二位置的过程中,限位件700随连杆组件211移动,从锁定位置切换至解锁位置以解除对配合件610的限位。限位件700随连杆组件211移动而从锁定位置切换至解锁位置,位置切换更加稳定。
例如,由于第二连杆213靠近配合件610,限位件700为设在第二连杆213上的一杆体,并与第二连杆213互成一定角度,限位件700与第二连杆213互成一锐角,使限位件700倾斜设于第二连杆213。限位件700与第二连杆213部分错位设置,限位件700包括主体部770和阻挡部780,其中主体部770连接于第一连杆212或第二连杆213,且主体部770在竖直方向上的投影落在第一连杆212或第二连杆213上,阻挡部780与主体部770连接,例如为与主体部770一体成型,并向配合件610所在的方向凸起。配合件610在竖直方向上的投影不落在第一连杆212或第二连杆213上,以避免与运动的连杆组件211发生干涉。
如图21所示,限位件700整体形状为倾斜设置,其首端和尾端均呈平板状设置,阻挡部780具有抵持面781,抵持面781具体包括一斜面7811以及连接在斜面7811首端和尾端的两个平面7812。连杆组件211位于第一位置时,限位件700位于锁定位置,限位件700通过抵持面781抵持配合件610的延伸凸起612,具体为通过斜面7811抵持延伸凸起612,延伸凸起612呈柱状设置,能够沿着斜面7811运动,配合件610在弹性件620的作用下具有朝切割刀驱动件600方向(向首端)运动的趋势,连接在斜面7811首端的平面7812能够阻挡配合件610脱离抵持面781。
连杆组件211从第一位置向第二位置运动的过程中,带动限位件700向上移动并转动,使配合件610的延伸凸起612与抵持面781相对运动,具体为延伸凸起612沿着斜面7811向尾端运动并脱离尾端的平面7812,该过程中弹性件620逐渐释放。在连杆组件211位于第二位置后,限位件700整体位于延伸凸起612上方,弹性件620被完全释放,配合件610与切割刀驱动件600配合,并与限位件700分离,限位件700不会阻挡配合件610后续驱动切割刀驱动件600。
通常技术中,操作组件一般设置有两个手柄,分别控制钳口闭合和切割刀进刀,结构复杂,操作繁琐。
通常技术中存在单个手柄能够控制钳口闭合和切割刀进刀的吻合器,包括手柄、凸轮、连杆、齿条和棘轮组件,手柄连接凸轮,手柄在第一次致动前,棘轮组件与手柄、棘轮组件与齿条均分离,手柄进行第一次致动时,凸轮转动驱动连杆移动使钳口闭合,凸轮转动后被弹簧机构锁定,凸轮转动同时让位使棘轮组件移动,移动后的棘轮组件同时与手柄及齿条啮合,使手柄能够在后续致动时驱动钳口齿条,进而驱动切割刀。而棘轮组件移动同时配合手柄及齿条的稳定性较差,容易出现手柄被卡住的情况,导致手术无法正常进行。
本公开的实施例提供一种外科器械,能够通过单手柄控制钳口闭合和切割刀进刀(击发),结构简单,操作方便,且手柄不会被卡住,稳定性高。
如图1、图2、图3、图11所示,本公开的实施例提供一种外科器械,包括:操作组件400与操作组件400分别连接的钳口组件300和切割刀组件630,操作组件400包括:手柄100,可被操作以进行第一次致动和后续致动;闭合机构200,与钳口组件300连接;切割刀驱动件600,与切割刀组件630连接;配合件610,连接于手柄100;限位件700,具有锁定位置和解锁位置,在锁定位置时,限位件700限位配合件610以阻止配合件610与切割刀驱动件600配合;响应于手柄100的第一次致动,闭合机构200驱动钳口组件300从打开位置切换至闭合位置并使钳口组件300保持在闭合位置,并且驱动限位件700从锁定位置切换至解锁位置;在钳口组件300处于闭合位置时,限位件700处于解锁位置;限位件700在解锁位置时,限位件700解除对配合件610的限位以使配合件610能够与切割刀驱动件600配合,响应于手柄100的后续致动,配合件610驱动切割刀驱动件600运动,进而驱动切割刀组件630。
如图2和图3所示,限位件700具有锁定位置和解锁位置,图2中限位件700位于锁定位置时,对配合件610限位以阻挡配合件610与切割刀驱动件600配合。在手柄100进行第一次致动前,限位件700位于锁定位置,响应于手柄100第一次致动,闭合机构200驱动钳口组件300从打开位置切换至闭合位置的过程中,闭合机构200同时驱动限位件700从锁定位置切换至解锁位置,如图3所示,闭合机构200使钳口组件300保持在闭合位置,也使限位件700保持在解锁位置。在解锁位置,配合件610能够与切割刀驱动
件600配合,手柄100在后续致动时,能够通过配合件610驱动切割刀驱动件600运动,进而驱动切割刀组件630前进以进行击发。
本实施例中的外科器械,仅设有一个手柄100,单个手柄100可以实现压榨和击发的功能,手柄100在第一次致动时能够驱动钳口组件300闭合进行压榨,在后续致动时能够驱动切割刀组件630进行击发,使得外科器械结构和操作更加简单,稳定性高,且提升了外科器械的稳定性和医护人员操作的便利性。
手柄100在第一次致动前,限位件700位于锁定位置,抵压部720抵压延伸凸起612。手柄100进行第一次致动时,限位件700逆时针转动,抵压部720与限位件7001同步转动,棘爪611顺时针转动,使棘爪611的尖端靠近有齿件,抵压部720始终抵压延伸凸起612;在限位件700达到解锁位置后,棘爪611抵持有齿件,抵压部720位于延伸凸起612上方,不再抵压延伸凸起612,使棘爪611能够驱动有齿件运动。
本实施例中,如图2所示,闭合机构200包括杆身驱动件210和杆身组件220,杆身组件220连接于钳口组件300,杆身驱动件210连接于杆身组件220,手柄100在进行第一次致动时,手柄100与杆身驱动件210可操作地接合,使手柄100能够驱动杆身驱动件210运动,杆身驱动件210在运动时能够带动杆身组件220运动,进而使钳口组件300从打开位置切换至闭合位置。具体的,杆身组件220包括内套管222和外套管221,外套管221环套于内套管222,且外套管221能够与内套管222相对移动,外套管221一端连接杆身驱动件210,另一端连接钳口组件300。响应于手柄100的第一次致动,杆身驱动件210从第一位置切换至第二位置以驱动外套管221移动,外套管221的移动使钳口组件300从打开位置切换至闭合位置。当手柄100切换至按压位置后,杆身驱动件210被锁定于第二位置,进而使外套管221位置锁定,钳口组件300保持在闭合位置。在手柄100从按压位置回弹至初始位置时,杆身驱动件210保持在第二位置不随手柄100运动,外套管221也保持在使钳口组件300位于闭合位置的位置。
如图2和图3所示,杆身驱动件210包括连杆组件211,连杆组件211包括第一连杆212和第二连杆213,第一连杆212可转动地连接于杆身组件220,具体为连接外套管221;第二连杆213一端可转动地连接于机架410,另一端
可转动地与第一连杆212连接,形成一个二连杆机构。连杆组件211位于第一位置时,第一连杆212和第二连杆213互成一定角度,且第一连杆212和第二连杆213均向下侧(靠近手柄100握持部的一侧)倾斜。连杆组件211位于第一位置且手柄100未进行第一次致动时,手柄100与第一连杆212或第二连杆213接触,使手柄100能够驱动连杆组件211运动,其中第一连杆212远端可转动地连接外套管221,近端可转动地连接第二连杆213,第一连杆212与第二连杆213通过铰接点可转动地连接。连杆组件211从第一位置切换至第二位置过程中,铰接点逐渐向上侧(远离手柄100握持部的一侧)移动,由于第二连杆213的近端连接于机架410,因此位于第二连杆213远端的铰接点向远端移动,同时第一连杆212的转动使得第一连杆212的远端朝向远端移动,因此连杆组件211能够驱动外套管221向远端移动,以使钳口组件300闭合。
如图3所示,连杆组件211位于第二位置时,连杆组件211位于死点或大体位于死点,位于死点指的是:第一连杆212与第二连杆213位于同一直线上,两者之间的夹角为180°。大体位于死点指的是:第一连杆212和第二连杆213越过死点位置,且第一连杆212与第二连杆213之间的夹角大于0°且小于5°,在连杆组件211位于死点或大体位于死点时,第一连杆212与第二连杆213之间的压力角大体等于90°,第一连杆212或第二连杆213受到外力时,对另一连杆的力矩为零,使连杆组件211无法运动,使连杆组件211锁定于第二位置。
在一实施例中,如图25至图29所示,闭合机构200还包括锁定件800,杆身驱动件210位于第二位置时,锁定件800与杆身驱动件210配合,将杆身驱动件210锁定在第二位置,从而使钳口组件300保持在闭合位置。例如,锁定件800为可运动的弹簧销组件,包括弹簧件820和销810,弹簧件820套设于销810,销810上设有凸起,弹簧件820一端抵持于销810的凸起,另一端抵持机架,当连杆组件211位于第一位置时,销810位于连杆组件211上方;当连杆组件211位于第二位置时,销810位于连杆组件211下方。即连杆组件211从第一位置切换至第二位置的过程中会经过销810,销810在连杆组件211的上方阻挡连杆组件211,销810的下侧具有一引导面,连杆组件211通过销810的过程中,首先抵持销810的引导面811,引导面811为一斜
面,连杆组件211抵持引导面811使销810能够相对于连杆组件211运动。例如,连杆组件211上侧设有配合斜面2111,连杆组件211在向第二位置(向上方)运动时,在配合斜面2111和引导面811的作用下,销810回缩对连杆组件211让位,压缩弹簧件820,不再阻挡连杆组件211,使连杆组件211能够通过销810。在连杆组件211切换至第二位置,与销810分离,则销810在弹簧件820的作用下回弹,在连杆组件211的下方伸出,于连杆组件211下方抵持连杆组件211从而与连杆组件211配合,阻挡连杆组件211向第一位置(向下)运动,从而将连杆组件211锁定在第二位置。例如,操作组件400的外壳上设有能够使销810回缩的操作件,操作件与销810连接,拉动操作件带动销810回缩,弹簧压缩。在打开钳口组件300时,医护人员拉动操作件将销810回缩,使销810不再从下方抵持连杆组件211,解除销810与连杆组件211的配合,使连杆组件211能够向第一位置运动,钳口组件300能够打开。当然,在其他实施例中,锁定件800也可以为其他结构,可以通过其他方式锁定连杆组件211,本公开的实施例对此不做具体限定。锁定件能够与连杆组件211处于死点位置自锁结合使用,也可以独立使用。
进一步的,如图30所示,手柄100上设有承托部110,承托部110位于连杆组件211下侧,连杆组件211从第一位置切换至第二位置的过程中,手柄100通过承托部110承托第一连杆212或第二连杆213,以与杆身驱动件210可操作地接合。当连杆组件211处于第二位置后锁定于第二位置,手柄100在复位回弹时承托部110与连杆组件211分离,手柄100进行后续致动时,手柄100从初始位置切换至按压位置,承托部110随手柄100的运动而运动,承托部100仅在手柄100到达按压位置时(承托部100运动轨迹的终点)接触位于第二位置的连杆组件211,即承托部110在运动过程中与连杆组件211不接触,因此手柄100在后续致动时无法驱动连杆组件211。具体地,承托部110为一杆体,手柄100通过承托部110抵持第二连杆213与杆身驱动件210可操作地接合,在第二连杆213转动的过程中,承托部110能够始终抵持第二连杆213。
本公开的实施例提供的外科器械,仅设有一个手柄,手柄第一次致动使钳口组件闭合进行压榨,后续致动使切割刀进刀进行击发,整体结构简单,可靠性高,且操作简便。同时配合件始终与手柄连接,配合件能够稳定地驱动切割
刀驱动件,使击发过程更加稳定。
通常技术中,操作组件内设置连杆组件,连杆组件连接外套管,手柄驱动连杆组件移动以带动外套管移动,进而驱动钳口组件以使钳口组件闭合,但连杆组件驱动钳口组件闭合整体稳定性较差,容易造成钳口组件闭合和组织压榨不稳定。
本公开的实施例提供一种外科器械,可以为吻合器,如图31和图32所示,包括操作组件400和与操作组件400连接的钳口组件300,操作组件400包括机架410、手柄100和连杆组件500,手柄100可转动地连接于机架410,手柄100与机架410之间设有弹性组件(图中未示出),手柄100具有初始位置和按压位置,医护人员可以通过按压手柄100使手柄100从初始位置运动至按压位置,松开手柄100后,手柄100在弹性组件的作用下从按压位置回弹至初始位置,手柄100从初始位置向按压位置的过程称为致动。在外科手术的过程中,手柄100被操作以进行致动,手柄100致动时,驱动连杆组件500运动,响应于连杆组件500的运动,钳口组件300从打开位置运动至闭合位置。
例如,连杆组件500与手柄100可操作地接合,手柄100能够在致动时驱动连杆组件500运动。例如,如图33和图34所示,连杆组件500包括左侧连杆510和右侧连杆520,左侧连杆510和右侧连杆520分别位于机架410的两侧,即左侧连杆510位于机架410的一侧,右侧连杆520位于机架410的另一侧。左侧连杆510与右侧连杆520连接,手柄100与左侧连杆510和/或右侧连杆520可操作地接合,使得手柄100在致动时,能够同时驱动左侧连杆510和右侧连杆520运动,实现对连杆组件500的驱动,进而使钳口组件300从打开位置运动至闭合位置。例如,左侧连杆510和右侧连杆520连接,能够在手柄100的驱动下同步运动,使连杆组件500运动更加稳定,进而使得手柄100驱动钳口组件300闭合更加稳定。
例如,左侧连杆510包括左第一连杆511和左第二连杆512,左第一连杆511可转动地连接钳口组件300,左第二连杆512一端可转动地连接机架410,另一端可转动地连接左第一连杆511;右侧连杆520包括右第一连杆521和右第二连杆522,右第一连杆521可转动地连接钳口组件300,右第二连杆522一端可转动地连接于机架410,另一端可转动地连接右第一连杆521。左第二
连杆512与右第二连杆522连接,使左侧连杆510能够与右侧连杆520同步运动。例如,左第一连杆511、左第二连杆512、右第一连杆521、右第二连杆522其中至少之一能够与手柄100可操作地接合,以使手柄100与左侧连杆510和/或右侧连杆520可操作地接合。
例如,手柄100在致动的过程中,驱动左侧连杆510和/或右侧连杆520运动,左侧连杆510与右侧连杆520同步运动且为镜像运动,在说明连杆组件500的状态时,本实施例中仅以左侧连杆510为例做说明,右侧连杆520状态与左侧连杆510相同。如图38所示,手柄100处于初始位置时,连杆组件500位于第一位置。如图39所示,手柄100运动至按压位置时,连杆组件500位于第二位置。连杆组件500位于第一位置时,左第一连杆511与左第二连杆512互成一定角度,且左第一连杆511和左第二连杆512均向手柄100握持部121(如图30所示)所在方向倾斜,大体呈V型。如图39所示,连杆组件500位于第二位置时,左侧连杆510位于死点或大体位于死点,同时右侧连杆520位于死点或大体位于死点。位于死点指的是:左第一连杆511与左第二连杆512位于同一直线上,两者之间的夹角为0°(或180°)。大体位于死点指的是:左第一连杆511与左第二连杆512越过死点位置,左第一连杆511与左第二连杆512之间的夹角大于0°且小于5°,在左侧连杆510位于死点位置或大体位于死点位置时,左第一连杆511与左第二连杆512之间的压力角大体等于90°,左第一连杆511或左第二连杆512受到外力时,对另一连杆的力矩为零,使左侧连杆510无法运动,从而使左侧连杆510锁定于第二位置。在左侧连杆510位于死点时,右侧连杆520也位于死点;左侧连杆510大体位于死点时,右侧连杆520大体位于死点位置,右侧连杆520与左侧连杆510同步锁定于第二位置,使得连杆组件500自锁于第二位置。左侧连杆510与右侧连杆520同步锁定,提升了连杆组件500自锁的稳定性。
例如,如图35和图36所示,连杆组件500还包括连接部800,连接部800一端与左第二连杆512可转动地连接,另一端与右第二连杆522可转动地连接,连接部800使左第二连杆512与右第二连杆522连接,进而使得左侧连杆510与右侧连杆520能够同步运动。连接部800分别与左第二连杆512和右第二连杆522连接,连接部800可以穿设于机架410,也可以绕机架410外壳设置。例如,连接部800设在机架410一端并绕机架410外壳设置,连
接部800整体呈凹形设置,包括夹板810、销轴820、左铰接部830和右铰接部。右铰接部与左铰接部830对应设置。例如,右铰接部与左铰接部830对称设置。右铰接部的结构可参照图35所示的左铰接部830。例如,夹板810呈凹形设置,包括三块板体,分别为:左侧板811、右侧板812和连接板813,左侧板811固定于机架410的左侧,右侧板812固定于机架410的右侧,连接板813与机架410贴合,左侧板811和右侧板812分别设于连接板813的两侧,且左侧板811和右侧板812均通过紧固件连接于机架410,使夹板810固定于机架410。例如,左侧板811、右侧板812和连接板813一体成型,以提升夹板810的稳定性。左铰接部830设于左侧板811,右铰接部设于右侧板812,左铰接部830与左第二连杆512可转动地连接,右铰接部与右第二连杆522可转动地连接。例如,左铰接部830与左第二连杆512可转动连接,以及右铰接部与右第二连杆522可转动连接,均是通过销轴820实现的。
如图33至图36所示,左第二连杆512具有左铰接端5121,左铰接端5121位于夹板810与左铰接部830之间,具体为左铰接端5121位于左侧板811与左铰接部830之间,销轴820贯穿左铰接部830和左侧板811,使左第二连杆512与左铰接部830可转动地连接。如图33至图36所示,右第二连杆522具有右铰接端5221,右铰接端5221位于夹板810与右铰接部之间,具体为右铰接端5221位于右侧板812与右铰接部之间,销轴820贯穿右铰接端5221和右侧板812,使右第二连杆522与右铰接部可转动地连接。一个实施例中,销轴820分为两部分,其中一个使左第二连杆512与左铰接部830可转动地连接,另一个使右第二连杆522与右铰接部可转动地连接。例如,销轴820为一个轴体,销轴820贯穿左铰接部830、左侧板811、机架410、右侧板812和右铰接部,使左第二连杆512与左铰接部830可转动地连接,同时使右第二连杆522与右铰接部可转动地连接,且与机架410一体,提升了左第二连杆512与右第二连杆522连接的稳定性。
如图35所示,左第一连杆511包括左第一铰接孔5111和左中部铰接孔5112,左第一连杆511通过左第一铰接孔5111与钳口组件300可转动地连接,左第一连杆511通过左中部铰接孔5112与左第二连杆512可转动地连接。对应的,右第一连杆521包括右第一铰接孔和右中部铰接孔(图中未示出),右第一连杆521通过右第一铰接孔与钳口组件300可转动地连接,右第一连杆
521通过右中部铰接孔与右第二连杆522可转动地连接。例如,左第一铰接孔5111与右第一铰接孔同轴设置,左中部铰接孔5112与右中部铰接孔同轴设置,且左第二连杆512的左铰接端5121与右第二连杆522的右铰接端5221同轴设置。进一步例如,左第一连杆511的长度与右第一连杆521的长度相同,左第二连杆512的长度与右第二连杆522的长度相同,使得左侧连杆510与右侧连杆520能够镜像运动,在提升连杆组件500的稳定性的同时不会影响连杆组件500的运动的稳定性。
如图31和图32所示,操作组件400还包括外套管221,外套管221连接于钳口组件300,外套管221为一长杆体,左第一连杆511和右第一连杆521均可转动地连接于外套管221,即左第一连杆511通过外套管221连接钳口组件300,右第一连杆521通过外套管221连接钳口组件300。手柄100在致动并驱动连杆组件500时,左第一连杆511和右第一连杆521向远端推进,驱动外套管221向远端移动,进而使钳口组件300从张开状态运动至闭合位置。
如图31至图34所示,外套管221呈环形设置,外套管221左右两侧分别设有左连接件2211和右连接件2212,左连接件2211和右连接件2212相对设置,相对设置是指:左连接件2211和右连接件2212关于一基准面对称设置,外套管221的轴线位于该基准面内,且该基准面与左第一连杆511及右第一连杆521平行。左第一连杆511通过左第一铰接孔5111与左连接件2211可转动地连接,右第一连杆521通过右第一铰接孔与右连接件2212可转动地连接。例如,左连接件2211与左第一铰接孔5111通过销连接,右连接件2212与右第一铰接孔通过另一销连接。
例如,如图30和图38所示,手柄100包括手柄本体120和连接于手柄本体120的承托部110,手柄本体120具有握持部121和枢转轴122,医护人员通过握持手柄本体120的握持部121来操作手柄100,手柄100在致动时绕枢转轴122转动,承托部110设于枢转轴122上方,且承托部110承托左侧连杆510和/或右侧连杆520,以使手柄100与左侧连杆510和/或右侧连杆520可操作地接合。
参考图33和图30,手柄本体120位于左侧连杆510与右侧连杆520之间,手柄本体120在转动时不会与连杆组件500发生干涉,承托部110设于手柄本体120并在手柄本体120宽度方向上延伸,承托部110位于连杆组件
500下侧并抵持于连杆组件500,在手柄100致动时,承托部110移动以驱动连杆组件500运动。在一实施例中,承托部110可以设置在手柄本体120的左侧,以承托左侧连杆510,通过驱动左侧连杆510带动连杆组件500运动;在另一实施例中,承托部110可以设置在手柄本体120的右侧,以承托右侧连杆520。例如,在另一实施例中,承托部110设置于手柄本体120的左右两侧,承托部110承托左侧连杆510和右侧连杆520,同时驱动左侧连杆510和右侧连杆520移动,以提升连杆组件500运动的稳定性。承托部110为一杆体,贯穿手柄本体120设置,并从手柄本体120的两侧凸起,例如,承托部110承托左第二连杆512和右第二连杆522,以驱动左侧连杆510和右侧连杆520运动。当然在其他实施例中,承托部110也可以承托左第一连杆511和右第一连杆521,不做具体限定。如图34、图30、图38和图39所示,手柄100致动时,手柄100的握持部121逆时针转动,承托部110顺时针转动,推动左第二连杆512和右第二连杆522转动,左第二连杆512向近端推动左第一连杆511,左第一连杆511向远端推动外套管221;同理右第二连杆522向近端推动右第一连杆521,右第一连杆521向远端推动外套管221。左第一连杆511和右第一连杆521同时推动外套管221,进而推动钳口组件300闭合。连杆组件500从左右两侧驱动外套管221,提升了外套管221运动的稳定性。手柄100运动至按压位置时,左侧连杆510和右侧连杆520位于死点或大体位于死点,使连杆组件500自锁于第二位置。
本公开的实施例提供的外科器械,连杆组件500通过左侧连杆510和右侧连杆520的设置,提升了连杆组件500运动的稳定性和锁定的稳定性,使钳口组件300的闭合以及组织的压榨更加稳定。
例如,如图38、图39、图11所示,外科器械还包括切割刀组件630,操作组件400还包括切割刀驱动件600、配合件610和限位件700,切割刀驱动件600与切割刀组件630连接,配合件610连接于手柄100且用于与切割刀驱动件600配合。配合件610能够驱动切割刀驱动件600运动,进而驱动切割刀组件630前进。钳口组件300位于张开状态时,组织可以进入钳口组件300内,钳口组件300位于闭合位置时,能够压榨组织。在组织处于被压榨状态时,响应于医护人员对操作组件400的操作,切割刀组件630前进切割组织,且钉仓组件出钉缝合组织。响应于手柄100的第一次致动,连杆组件500
驱动钳口组件300从打开位置切换至闭合位置,并使钳口组件300保持在闭合位置,以压榨组织,并使组织保持在被压榨的状态。在手柄100从按压位置回弹至初始位置时,连杆组件500自锁于第二位置,不会随手柄100的释放回弹而运动,始终保持在使钳口组件300位于闭合位置的状态,手柄100在后续致动时,无法驱动连杆组件500运动,也无法改变钳口组件300位于闭合位置的状态。手柄100从初始位置切换至按压位置,承托部110随手柄100的运动而运动,承托部110仅在手柄100到达按压位置时(承托部110运动轨迹的终点)接触位于第二位置的连杆组件500,即承托部110在运动过程中与连杆组件500不接触,因此手柄100在后续致动时无法驱动连杆组件500。
如图38、图39、图11所示,切割刀驱动件600连接切割刀组件630,配合件610连接于手柄100,配合件610与切割刀驱动件600配合时,能够在手柄100的带动下驱动切割刀驱动件600,进而驱动切割刀组件630。
如图38、图39、图11所示,限位件700在连杆组件500位于第一位置时,限位配合件610以使配合件610与切割刀驱动件600分离,故使得手柄100的第一次致动仅能驱动钳口组件300闭合,无法驱动切割刀组件630。在第一次致动完成,连杆组件500处于第二位置时,限位件700解除对配合件610的限位以使配合件610能够与切割刀驱动件600配合,配合件610能够与切割刀驱动件600配合是指:配合件610运动至与切割刀驱动件600配合的位置。在一实施例中,配合件610自动运动以与切割刀驱动件600配合。
本公开的实施例提供的外科器械,仅设有一个手柄100,单个手柄100可以实现压榨和击发的功能,手柄100在第一次致动时能够驱动钳口组件300闭合进行压榨,在后续致动时能够驱动切割刀组件630进行击发,使得外科器械结构和操作更加简单,提升外科器械的稳定性和医护人员操作的便利性。
限位件700具有锁定位置和解锁位置,图32中限位件700位于锁定位置时,对配合件610限位以阻挡配合件610与切割刀驱动件600配合。在手柄100进行第一次致动前,限位件700位于锁定位置,响应于手柄100第一次致动,连杆组件500驱动钳口组件300从打开位置切换至闭合位置的过程中,连杆组件500同时驱动限位件700从锁定位置切换至解锁位置,如图33、图38和图39所示。如图39所示,连杆组件500使钳口组件300保持在闭合位置,也使限位件700保持在解锁位置。在解锁位置,配合件610能够与切割
刀驱动件600配合,手柄100在后续致动时,能够通过配合件610驱动切割刀驱动件600运动,进而驱动切割刀组件630前进以进行击发。
例如,如图23所示,限位件700处于锁定位置时抵压配合件610以对配合件610施加作用力,进而限位配合件610,使配合件610处于无法与切割刀驱动件600配合的位置,阻挡配合件610与切割刀驱动件600的配合。当限位件700处于解锁位置时解除对配合件610的抵压,使配合件610能够与切割刀驱动件600配合。
如图38所示,限位件700可运动地设于机架410,通过运动从锁定位置切换至解锁位置。且限位件700因运动与配合件610分离,以解除对配合件610的抵压,使配合件610能够与切割刀驱动件600配合。例如,如图38和图11所示,限位件700可转动地设于机架410上,连杆组件500能够驱动限位件700转动,限位件700在转动的过程中保持对配合件610的抵压,直至限位件700转动至解锁位置,不再抵压配合件610,即限位件700不再对配合件610施加作用力,使配合件610能够与切割刀驱动件600配合,能够驱动切割刀组件630。
例如,如图38所示,限位件700整体大致呈长条型,包括本体部710和抵压部720,抵压部720连接于本体部710,例如,抵压部720和本体部710一体设置,本体部710可转动地连接于机架410,抵压部720向配合件610所在的方向延伸,限位件700通过抵压部720抵压配合件610,以阻挡配合件610与切割刀驱动件600的配合。进一步的,限位件700还包括一弹力件(图中未示出),弹力件具体可以为扭簧,弹力件连接在本体与机架之间,弹力件向限位件700施加弹力,使限位件700保持在锁定位置,并为限位件700抵压配合件610提供抵压力,在限位件700被连杆组件500驱动向解锁位置运动时,弹力件压缩。同时弹力件使得手柄100在进行第一次致动前处于锁定位置。限位件700还包括凸起部730,凸起部730设置于本体部710。连杆组件500驱动钳口组件300从打开位置切换至闭合位置的过程中,作用于凸起部730,通过凸起部730带动限位件700转动,连杆组件500不与本体部710或抵压部720接触,以防止造成干涉。连杆组件500使钳口组件300保持在闭合位置时,仍抵持凸起部730,使限位件700保持在解锁位置。
在一实施例中,如图38和图39所示,凸起部730为一个轴体,凸起设
置于本体部710,使得限位件700在被连杆组件500推动转动时始终能够与连杆组件500抵持。在另一实施例中,如图4、图5和图13所示,凸起部730呈L型设置,包括两个侧边,两个侧边之间形成角部,凸起部730与连杆组件500接触时,首先通过L型凸起部730的角部接触连杆组件500,至限位件700处于解锁位置时,凸起部730通过一侧边与连杆组件500抵持,提升了与连杆组件500的接触面积,进而提升了保持在解锁位置的稳定性。
例如,限位件700处于解锁位置时,配合件610自动运动与切割刀驱动件600配合,如图12和图13所示,配合件610可运动地连接于手柄100,手柄100与配合件610之间设有弹性件620,配合件610在弹性件620提供的弹力的作用下向切割刀驱动件600运动,即弹性件620的弹力能够使配合件610向与切割刀驱动件600配合的方向运动。限位件700从锁定位置切换到解锁位置的过程中,结合图13和图6c,在限位件700处于锁定位置时,抵压配合件610,弹性件620被压缩,配合件610无法与切割刀驱动件600配合。在限位件700处于解锁位置时,配合件610不再被抵压,在弹性件620的弹力的作用下,配合件610向与切割刀驱动件600配合的方向运动,即在限位件700切换至解锁位置时,配合件610在弹性件620的作用下自动回弹,与切割刀驱动件600配合。
例如,如图8、图9和图12所示,配合件610包括棘爪611,切割刀驱动件600为有齿件,具体可以为齿条,配合件610与切割刀驱动件600配合时,为棘爪611与有齿件啮合。弹性件620为扭簧,扭簧一端抵持手柄100,另一端抵持棘爪611,扭簧所提供的弹力使棘爪611向与有齿件配合的位置转动。限位件700位于锁定位置抵压棘爪611时,棘爪611无法与有齿件配合,扭簧被压缩。限位件700切换至解锁位置时解除对棘爪611的抵压,棘爪611在扭簧的作用下转动以与有齿件配合。
手柄100在后续致动时,能够通过自身的转动带动棘爪611运动,如图9和图10所示,手柄100通过铰接轴转动连接于机架410,棘爪611连接在手柄100顶端,手柄100在被按压时逆时针转动,使棘爪611向远端运动,从而驱动有齿件向远端位移,使切割刀组件630向远端运动以进行击发。手柄100进行后续致动时,以第二次致动为例,手柄100被按压时通过棘爪611驱动有齿件和切割刀组件630运动进行击发;手柄100被释放时顺时针转动回
原位,棘爪611向近端位移,棘爪611仅能向远端单向驱动有齿件,棘爪611沿有齿件的表面向近端位移,而有齿件和切割刀组件630不发生移动,即手柄100被释放时,棘爪611退回原位,有齿件和切割刀组件630不移动,棘爪611仍与有齿件配合。进行第三次致动时,手柄100、棘爪611、有齿件和切割刀组件630的运动与第二次致动相同。可知本实施例中,手柄100在后续致动时,每一次致动会使切割刀组件630前进一定距离,多次致动可以完成切割刀组件630的全程击发。
另外值得注意的是,限位件700在解除对棘爪611的限位,棘爪611在弹性件620的作用下朝有齿件运动时,棘爪611有一定几率与有齿件啮合,也有一定几率仅与有齿件接触但处于非啮合状态。如图13所示,在棘爪611与有齿件接触但未啮合时,响应于手柄100的后续致动,棘爪611向远端运动,运动的棘爪611能够与有齿件啮合并驱动棘爪611运动。因此棘爪611能够稳定地驱动有齿件运动,进而驱动切割刀组件630运动。
例如,如图13和图8所示,配合件610还包括延伸凸起612,延伸凸起612沿棘爪611的宽度方向延伸设置,限位件700抵压配合件610具体为抵压延伸凸起612,延伸凸起612的设置使限位件700与棘爪611位置错开,避免两者干涉。手柄100在第一次致动前,限位件700位于锁定位置,抵压部720抵压延伸凸起612。手柄100进行第一次致动时,限位件700逆时针转动,抵压部720与限位件700同步转动,棘爪611顺时针转动,使棘爪611的尖端靠近有齿件,抵压部720始终抵压延伸凸起612;在限位件700达到解锁位置后,棘爪611抵持有齿件,抵压部720位于延伸凸起612上方,不再抵压延伸凸起612,使棘爪611能够驱动有齿件运动。
由上可知,手柄100的第一次致动,即第一次从初始位置被操作至按压位置的过程中,使连杆组件500从第一位置切换至第二位置,连杆组件500的运动使外套管221位移使钳口组件300从打开位置切换至闭合位置;同时连杆组件500的运动驱动限位件700从锁定位置切换至解锁位置;而配合件610由于被限位件700抵压,无法与切割刀驱动件600配合,无法驱动切割刀组件630。即第一次致动使钳口组件300闭合,且切割刀组件630不运动。完成第一次致动后,松开手柄100,手柄100回弹至初始位置,连杆组件500锁定于第二位置,手柄100与连杆组件500分离,在后续致动时,手柄100再次
从初始位置被操作至按压位置,手柄100与位于第二位置的连杆组件500分离,只有在手柄100运动路径的末端才会与连杆组件500接触,无法驱动连杆组件500运动。因此手柄100在后续致动时不会使连杆组件500的位置发生改变,连杆组件500保持在第二位置,限位件700保持在解锁位置。同时后续致动时配合件610切割刀驱动件600配合,手柄100能够通过驱动配合件610运动,驱动切割刀驱动件600运动,进而驱动切割刀组件630进行击发。
手术结束后,首先通过退刀结构将切割刀组件630退回初始位置,然后开启钳口组件释放人体组织。操作组件还包括解锁组件(图中未示出),解锁组件用以解除连杆组件500在第二位置的锁定,解锁组件包括设于操作组件400的壳体外的操作部、位于操作组件壳体内抵持位于第二位置的连杆组件500的解锁部,解锁部与操作部联动,医护人员对操作部进行操作时,解锁部移动推动连杆组件500,使连杆组件500退回第一位置,钳口组件张开释放人体组织。例如,操作部可以为设在操作组件400外壳上的按钮,解锁部设于操作组件400内,为沿上下方向延伸的杆体。按钮与杆体相连接。按钮未被操作时,杆体位于连杆组件500上方,连杆组件500自锁于第二位置;医护人员操作按钮时,使杆体向下移动以抵接并推动连杆组件500,使连杆组件500不再处于第二位置,以解除连杆组件500的自锁状态,并且杆体进一步向下移动以推动连杆组件500切换至第一位置,进而使钳口组件300打开。例如,开启钳口组件300时手柄100位于初始位置,连杆组件500在杆体的作用下移动,在抵持手柄100的承托部110后停止,此时连杆组件500处于第一位置。钳口组件300处于打开状态时,连杆组件500处于第一位置,限位件700在弹力件的作用下回到锁定位置。
本公开的实施例提供的外科器械,仅设有一个手柄100,手柄100第一次致动使钳口组件300闭合进行压榨,后续致动使切割刀进刀进行击发,整体结构简洁,稳定性高,操作方便。同时配合件610始终与手柄100连接,配合件610能够稳定地驱动切割刀驱动件600,使击发过程更加稳定。连杆组件500自锁使钳口组件300保持在闭合位置,无需操作且无需设置锁定结构,使得外科器械整体结构简单,连杆组件500包括左侧连杆510和右侧连杆520,两侧连杆运动稳定且保持在锁定位置稳定,提升了钳口组件300闭合和组织
压榨的稳定性。
本公开的实施例提供的外科器械,连杆组件通过左侧连杆和右侧连杆的设置,提升了连杆组件运动的稳定性和锁定的稳定性,使钳口组件的闭合以及组织的压榨更加稳定。
本公开的实施例还提供一种外科器械,大体与上述实施例中的外科器械相同,主要区别在于:限位件700结构不同。
如图14至图20所示,限位件700包括止挡部740,限位件700处于锁定位置时,止挡部740位于配合件610与切割刀驱动件600之间,将切割刀驱动件600与配合件610隔开以限位配合件610,使配合件610与切割刀驱动件600无法配合。限位件700处于解锁位置时,止挡部740脱离配合件610与切割刀驱动件600之间的位置以解除对配合件610的限位,使配合件610能够与切割刀驱动件600配合。
止挡部740在锁定位置时处于配合件610与切割刀驱动件600之间,能够稳定的阻挡配合件610与切割刀驱动件600配合。在第一次致动时,配合件610虽未与切割刀驱动件600配合,但仍在手柄100的驱动下移动,即配合件610相对于切割刀驱动件600滑移,配合件610在手柄的驱动下位移时,始终抵持于止挡部740,止挡部740在配合件610移动的方向上具有足够的长度,能够稳定的限位配合件610,阻止配合件610与切割刀驱动件600配合。
例如,限位件700位于锁定位置时,止挡部740至少与配合件610和切割刀驱动件600中的配合件610抵持。止挡部740至少与配合件610和切割刀驱动件600中的配合件610抵持的含义是:止挡部740只与配合件610抵持,或者,止挡部740同时与配合件610和切割刀驱动件600抵持。在一实施例中,止挡部740的一侧(上侧)抵持切割刀驱动件600,配合件610在弹性件620的作用下抵持止挡部740的另一侧(下侧)。在另一实施例中,止挡部740的上侧与切割刀驱动件600分离,下侧与配合件610抵持。
例如,如图14所示,限位件700还包括移动部750,移动部750可运动地设置于机架410,移动部750与止挡部740连接,能够带动止挡部740移动以使止挡部740脱离配合件610与切割刀驱动件600之间的位置。在连杆组件500驱动钳口组件300从打开位置运动至闭合位置的过程中,连杆组件500驱动移动部750移动,进而驱动限位件700从锁定位置切换至解锁位置。具
体为连杆组件500从第一位置切换至第二位置的过程中,连杆组件500驱动移动部750移动,移动部750带动止挡部740运动。
如图14、图15、图17、图18和图20所示,移动部750可滑动地设置于机架410,包括滑动部751和导向部752,滑动部751与机架410滑动连接,导向部752连接于滑动部751,导向部752具有一导向斜面761,连杆组件500从第一位置切换至第二位置的过程中,连杆组件500抵持并推动导向部752以驱动移动部750运动,进而驱动止挡部740脱离配合件610与切割刀驱动件600之间的位置。例如,机架410设有一滑动轴420(如图17和图20所示),滑动部751呈环形设置,环套于滑动轴420,滑动部751能够沿滑动轴420的轴向方向移动,移动部750还包括一弹簧770(如图17、图18和图20所示),弹簧770设在滑动部751远离止挡部740的一侧,并套设于滑动轴420,用于向滑动部751施加弹力。滑动轴420远离机架410的一端设置有螺钉780,螺钉780包括螺柱和螺帽782,螺柱旋入滑动轴420内与滑动轴420配合,螺帽782位于滑动轴420远离机架410的一侧,弹簧770一端抵持于螺帽782,另一端抵持于滑动部751。导向部752位于移动部750下方,导向斜面761自上至下具有高侧和低侧,在前后方向上高侧位于低侧与止挡部740之间,连杆组件500从第一位置切换至第二位置的过程中逐渐上移,首先抵持导向斜面761的低侧,推动导向部752移动,至抵持导向斜面761的高侧,导向部752在被连杆组件500推动的过程中,带动滑动部751相对于滑动轴420向远离配合件610的方向运动,从而带动止挡部740运动以脱离配合件610与切割刀驱动件600之间的位置,该过程中弹簧770被压缩。
例如,连杆组件500中第一连杆212和/或左第二连杆512设有配合斜面762,具体为在连杆组件500从第一位置切换至第二位置的过程中与导向部752接触的连杆设有配合斜面762(如图17所示),配合斜面762与导向斜面761的斜率大体一致,以更好的推动导向部752运动。
例如,止挡部740呈片状设置,止挡部740的宽度大体与切割刀驱动件600的宽度相同,以覆盖切割刀驱动件600的表面,防止配合件610与切割刀驱动件600配合,同时节省了止挡部740的材料,便于限位件700运动。
本公开的实施例还提供一种外科器械,大体与上述实施例中的外科器械相同,主要区别在于:限位件700结构不同。
如图21至图24所示,限位件700设于左第一连杆511、左第二连杆512、右第一连杆521、右第二连杆522其中之一,连杆组件500从第一位置切换至第二位置的过程中,限位件700随连杆组件500移动,从锁定位置切换至解锁位置以解除对配合件610的限位。限位件700随连杆组件500移动而从锁定位置切换至解锁位置,位置切换更加稳定。
例如,如图21至图24所示,左第二连杆512靠近配合件610,限位件700为设在左第二连杆512上的一杆体,并与左第二连杆512互成一定角度,限位件700与左第二连杆512互成一锐角,使限位件700倾斜设于左第二连杆512。限位件700与左第二连杆512部分错位设置,限位件700包括主体部770和阻挡部780,主体部770连接于左第二连杆512,且主体部770在竖直方向上的投影落在左第二连杆512上,阻挡部780与主体部770连接,例如可为与主体部770一体成型,并向配合件610所在的方向凸起。配合件610在竖直方向上的投影不落在左第二连杆512上,以避免与运动的连杆组件500发生干涉。
例如,如图21至图24所示,限位件700整体形状为倾斜设置,其首端和尾端均呈平板状设置,阻挡部780具有抵持面781,抵持面781具体包括一斜面7811以及连接在斜面7811首端和尾端的两个平面7812。连杆组件500位于第一位置时,限位件700位于锁定位置,限位件700通过抵持面781抵持配合件610的延伸凸起612,具体为通过斜面7811抵持延伸凸起612,延伸凸起612呈柱状设置,能够沿着斜面7811运动,配合件610在弹性件620的作用下具有朝切割刀驱动件600方向(向首端)运动的趋势,连接在斜面7811首端的平面7812能够阻挡配合件610脱离抵持面781。
连杆组件500从第一位置向第二位置运动的过程中,带动限位件700向上移动并转动,使配合件610的延伸凸起612与抵持面781相对运动,具体为延伸凸起612沿着斜面7811向尾端运动并脱离尾端的平面7812,该过程中弹性件620逐渐释放。在连杆组件500位于第二位置后,限位件700整体位于延伸凸起612上方,弹性件620被完全释放,配合件610与切割刀驱动件600配合,并与限位件700分离,限位件700不会阻挡配合件610后续驱动切割刀驱动件600。
例如,在本公开的实施例中,连杆组件500中的左侧连杆510和右侧连
杆520也可分别称作第一连杆组件和第二连杆组件,左侧连杆510中的左第一连杆511和左第二连杆512可分别称作左侧连杆510的第一连杆和左侧连杆510的第二连杆,或者也可称作第一连杆组件中的第一连杆和第一连杆组件中的第二连杆,右侧连杆520中的右第一连杆521和右第二连杆522可分别称作右侧连杆520中的第一连杆和右侧连杆520中的第二连杆,也可分别称作第二连杆组件中的第一连杆和第二连杆组件中的第二连杆。
例如,在本公开的实施例中,左侧连杆510和右侧连杆520是相对于手柄100而言的。左侧连杆510位于手柄100的左侧,右侧连杆520位于手柄100的右侧。
应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施方式中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以所述权利要求的保护范围为准。
Claims (35)
- 一种外科器械,包括:操作组件与所述操作组件分别连接的钳口组件和切割刀组件,其中,所述操作组件包括:手柄,可被操作以进行第一次致动和后续致动;闭合机构,与所述钳口组件连接;切割刀驱动件,与所述切割刀组件连接;配合件,连接于所述手柄;限位件,具有锁定位置和解锁位置,在所述锁定位置时,所述限位件限位所述配合件以阻止所述配合件与所述切割刀驱动件配合;响应于所述手柄的第一次致动,所述闭合机构驱动所述钳口组件从打开位置切换至闭合位置并使所述钳口组件保持在所述闭合位置,并且驱动所述限位件从所述锁定位置切换至所述解锁位置;在所述钳口组件处于所述闭合位置时,所述限位件处于所述解锁位置;所述限位件在所述解锁位置时,所述限位件解除对所述配合件的限位以使所述配合件能够与所述切割刀驱动件配合,响应于所述手柄的后续致动,所述配合件驱动所述切割刀驱动件运动,进而驱动所述切割刀组件。
- 根据权利要求1所述的外科器械,其中,所述限位件处于所述锁定位置时抵压所述配合件,以限位所述配合件;所述限位件处于所述解锁位置时与所述配合件分离,以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
- 根据权利要求2所述的外科器械,其中,所述操作组件还包括机架,所述限位件可运动地设置于所述机架,所述限位件从所述锁定位置切换至所述解锁位置时,所述限位件运动以与所述配合件分离。
- 根据权利要求3所述的外科器械,其中,所述限位件包括本体部、抵压部和凸起部,所述本体部可转动地设置于所述机架,所述抵压部连接于所述本体部,所述限位件处于所述锁定位置时,所述抵压部抵压所述配合件;所述凸起部设置于所述本体部,所述闭合机构抵接所述凸起部以驱动所述凸起部进而驱动所述限位件从所述锁定位置切换至所述解锁位置。
- 根据权利要求1所述的外科器械,其中,所述限位件包括止挡部,所述限位件处于所述锁定位置时,所述止挡部位于所述配合件与所述切割刀驱动件之间以限位所述配合件,将所述切割刀驱动件与所述配合件隔开;所述限位件处于所述解锁位置时,所述止挡部脱离所述配合件与所述切割刀驱动件 之间的位置以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
- 根据权利要求5所述的外科器械,其中,所述限位件位于所述锁定位置时,所述止挡部至少与所述配合件和所述切割刀驱动件中的所述配合件抵持。
- 根据权利要求5所述的外科器械,其中,所述操作组件还包括机架,所述限位件还包括可运动地设置于所述机架的移动部,所述移动部与所述止挡部连接,所述闭合机构驱动所述钳口组件从打开位置切换至闭合位置的过程中,所述闭合机构驱动所述移动部运动,所述移动部带动所述止挡部位移以脱离所述配合件与所述切割刀驱动件之间的位置。
- 根据权利要求7所述的外科器械,其中,所述移动部可滑动地设置于所述机架,所述移动部包括滑动部和导向部,所述滑动部与所述机架滑动连接,所述导向部连接于所述滑动部;所述闭合机构驱动所述钳口组件从所述打开位置切换至所述闭合位置的过程中,所述闭合机构抵持并推动所述导向部,以驱动所述移动部运动。
- 根据权利要求1-8任一项所述的外科器械,其中,所述闭合机构包括杆身驱动件和杆身组件,所述杆身组件连接于所述钳口组件,所述杆身驱动件连接于所述杆身组件,所述手柄进行所述第一次致动时,所述手柄与所述杆身驱动件可操作地接合以驱动所述杆身驱动件从第一位置切换至所述第二位置,进而驱动所述杆身组件运动使所述钳口组件从所述打开位置切换至所述闭合位置;从所述第一位置切换至所述第二位置的过程中,所述杆身驱动件驱动所述限位件从所述锁定位置切换至所述解锁位置。
- 根据权利要求9所述的外科器械,其中,所述闭合机构还包括锁定件,所述杆身驱动件位于所述第二位置时,所述锁定件锁定所述杆身驱动件,使所述钳口组件保持在所述闭合位置。
- 根据权利要求10所述的外科器械,其中,所述锁定件包括销,所述销在所述杆身驱动件位于所述第二位置时抵持所述杆身驱动件,阻挡所述杆身驱动件向所述第一位置运动,进而锁定所述杆身驱动件。
- 根据权利要求9-11任一项所述的外科器械,其中,所述杆身驱动件包括连杆组件,所述连杆组件包括第一连杆和第二连杆,所述第一连杆可转动地连接于所述杆身组件,所述第二连杆的一端可转动地与所述第一连杆连接, 另一端可转动地连接于所述机架;所述手柄与所述第一连杆或所述第二连杆接触,使所述手柄在第一次致动时驱动所述连杆组件,以使所述连杆组件从所述第一位置切换至所述第二位置;所述连杆组件位于所述第二位置时,所述连杆组件位于死点或大体位于死点,以使所述连杆组件锁定于所述第二位置。
- 根据权利要求9-11任一项所述的外科器械,其中,所述杆身驱动件包括连杆组件,连杆组件提供为多个,多个连杆组件包括左侧连杆和右侧连杆,所述左侧连杆和所述右侧连杆分别位于所述机架的两侧,所述左侧连杆与所述右侧连杆连接,所述手柄与所述左侧连杆和/或所述右侧连杆可操作地接合,以驱动所述连杆组件运动;响应于所述连杆组件的运动,所述钳口组件从所述打开位置运动至所述闭合位置。
- 根据权利要求13所述的外科器械,其中,所述左侧连杆包括左第一连杆和左第二连杆,所述左第一连杆连接所述钳口组件,左第二连杆一端可转动地连接于所述机架,另一端可转动地连接所述左第一连杆;所述右侧连杆包括右第一连杆和右第二连杆,所述右第一连杆连接所述钳口组件,所述右第二连杆一端可转动地连接于所述机架,另一端可转动地连接所述右第一连杆;所述左第二连杆与所述右第二连杆连接。
- 根据权利要求14所述的外科器械,其中,所述手柄驱动所述连杆组件从第一位置运动至第二位置,所述连杆组件位于所述第一位置时,所述左第一连杆和所述左第二连杆互成第一角度,所述右第一连杆与所述右第二连杆互成所述第一角度;所述连杆组件位于所述第二位置时,所述左第一连杆与所述左第二连杆共线或大体共线,所述右第一连杆与所述右第二连杆共线或大体共线。
- 根据权利要求13-15任一项所述的外科器械,其中,所述限位件设于所述左侧连杆或所述右侧连杆,所述连杆组件从所述第一位置切换至所述第二位置的过程中,所述限位件随所述连杆组件移动,从锁定位置切换至解锁位置以解除对所述配合件的限位。
- 根据权利要求16所述的外科器械,其中,所述连杆组件还包括连接部,所述连接部一端与所述左第二连杆可转动地连接,另一端与所述右第二连杆可转动地连接。
- 根据权利要求17所述的外科器械,其中,所述连接部包括:夹板、左铰接部和右铰接部,所述夹板连接于所述机架,所述左铰接部和所述右铰接 部分别设于所述夹板两侧,所述左铰接部与所述左第二连杆可转动地连接,所述右铰接部与所述右第二连杆可转动地连接。
- 根据权利要求14或15所述的外科器械,其中,所述左第一连杆包括左第一铰接孔和左中部铰接孔,所述左第一连杆通过所述左第一铰接孔与所述钳口组件可转动地连接,所述左第一连杆通过所述左中部铰接孔与所述左第二连杆可转动地连接;所述右第一连杆包括右第一铰接孔和右中部铰接孔,所述右第一连杆通过所述右第一铰接孔与所述钳口组件可转动地连接,所述右第一连杆通过所述右中部铰接孔与所述右第二连杆可转动地连接;所述左第一铰接孔与所述右第一铰接孔同轴设置,所述左中部铰接孔与所述右中部铰接孔同轴设置。
- 根据权利要求14、15或19所述的外科器械,其中,所述操作组件还包括外套管,所述外套管连接于所述钳口组件,所述左第一连杆和所述右第一连杆均可转动地连接于所述外套管。
- 根据权利要求1-20任一项所述的外科器械,其中,所述手柄包括手柄本体和连接于所述手柄本体的承托部,所述承托部承托所述左侧连杆和/或所述右侧连杆,以使所述手柄与左侧连杆和/或所述右侧连杆可操作地接合。
- 一种外科器械,包括:操作组件、与所述操作组件分别连接的钳口组件和切割刀组件,其中,所述操作组件包括:机架;手柄,可转动地连接于所述机架,其被操作以进行第一次致动和后续致动;连杆组件,包括第一连杆和第二连杆,所述第一连杆与所述钳口组件连接,所述第二连杆的一端可转动地连接于所述机架,另一端可转动地连接于所述第一连杆;响应于所述手柄的所述第一次致动,所述连杆组件从第一位置切换至第二位置以驱动所述钳口组件闭合;所述连杆组件位于所述第一位置时,所述第一连杆和所述第二连杆互成一角度,所述连杆组件位于所述第二位置时,所述第一连杆与所述第二连杆共线或大体共线,使所述连杆组件自锁于所述第二位置;切割刀驱动件,与所述切割刀组件连接;配合件,连接于所述手柄;限位件,所述连杆组件位于所述第一位置时,所述限位件限位所述配合件 以使所述配合件与所述切割刀驱动件分离;所述连杆组件位于所述第二位置时,所述限位件解除对所述配合件的限位以使所述配合件能够与所述切割刀驱动件配合,响应于所述手柄的所述后续致动,所述配合件驱动所述切割刀驱动件运动,进而驱动所述切割刀组件。
- 根据权利要求12或22所述的外科器械,其中,所述手柄设置有承托部;所述手柄通过所述承托部承托所述第一连杆或所述第二连杆以驱动所述连杆组件移动,使得所述连杆组件从所述第一位置切换至所述第二位置;所述连杆组件处于所述第二位置时,所述承托部在所述手柄进行所述后续致动时与所述连杆组件分离。
- 根据权利要求22或23所述的外科器械,其中,所述限位件可运动地设于所述机架,所述限位件具有锁定位置和解锁位置;所述限位件在所述锁定位置限位所述配合件,以阻止所述配合件与所述切割刀驱动件配合;从所述第一位置切换至所述第二位置的过程中,所述连杆组件驱动所述限位件从所述锁定位置运动至所述解锁位置,所述连杆组件处于所述第二位置时所述限位件位于所述解锁位置;在所述解锁位置,所述限位件解除对所述配合件的限位,以使所述配合件能够与所述切割刀驱动件配合,响应于所述手柄的所述后续致动,所述配合件驱动所述切割刀驱动件运动,进而驱动所述切割刀组件。
- 根据权利要求24所述的外科器械,其中,所述限位件处于所述锁定位置时抵压所述配合件,以限位所述配合件;所述限位件处于所述解锁位置时与所述配合件分离,以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
- 根据权利要求25所述的外科器械,其中,所述限位件包括本体部、抵压部和凸起部,所述本体部可转动地连接于所述机架,所述抵压部连接于所述本体部,所述限位件处于所述锁定位置时,通过所述抵压部抵压所述配合件;所述凸起部设置于所述本体部,所述连杆组件驱动所述凸起部以驱动所述限位件从所述锁定位置切换至所述解锁位置。
- 根据权利要求22所述的外科器械,其中,所述限位件设置于所述第一连杆或所述第二连杆,所述连杆组件从所述第一位置切换至所述第二位置的过程中,所述限位件随所述连杆组件移动,从锁定位置切换至解锁位置以解除对所述配合件的限位。
- 根据权利要求27所述的外科器械,其中,所述限位件包括主体部和 阻挡部,所述主体部连接于所述第一连杆或第二连杆,所述阻挡部连接于所述主体部,并向所述配合件所在的方向凸起,所述阻挡部具有抵持面;所述限位件位于所述锁定位置时,所述抵持面抵持所述配合件以限位所述配合件;所述限位件从所述锁定位置切换至所述解锁位置的过程中,所述抵持面与所述配合件相对运动至所述配合件脱离所述抵持面,以解除对所述配合件的限位。
- 根据权利要求22所述的外科器械,其中,所述限位件包括止挡部,所述限位件处于所述锁定位置时,所述止挡部位于所述配合件与所述切割刀驱动件之间以限位所述配合件,将所述切割刀驱动件与所述配合件分离;所述限位件处于所述解锁位置时,所述止挡部脱离所述配合件与所述切割刀驱动件之间的位置以解除对所述配合件的限位,使所述配合件能够与所述切割刀驱动件配合。
- 根据权利要求29所述的外科器械,其中,所述限位件位于所述锁定位置时,所述止挡部至少与所述配合件和所述切割刀驱动件中的所述配合件抵持。
- 根据权利要求29或30所述的外科器械,其中,所述限位件还包括可运动地设置于所述机架的移动部,所述移动部与所述止挡部连接,所述连杆组件驱动所述钳口组件从打开位置运动至闭合位置的过程中,所述连杆组件驱动所述移动部运动,所述移动部带动所述止挡部位移以脱离所述配合件与所述切割刀驱动件之间的位置。
- 根据权利要求31所述的外科器械,其中,所述移动部可滑动地设置于所述机架,所述移动部包括滑动部和导向部,所述滑动部与所述机架滑动连接,所述导向部连接于所述滑动部;所述连杆组件驱动所述钳口组件从所述打开位置运动至所述闭合位置的过程中,所述连杆组件抵持并推动所述导向部,以驱动所述移动部运动。
- 根据权利要求12、23-27任一项所述的外科器械,其中,所述配合件包括延伸凸起,所述连杆组件位于所述第一位置时,所述限位件作用于所述延伸凸起以限位所述配合部;所述连杆组件位于所述第二位置时,所述限位件与所述延伸凸起分离以解除对所述配合件的限位。
- 根据权利要求1、22-33任一项所述的外科器械,其中,所述配合件可运动地连接于所述手柄,所述手柄与所述配合件之间设有弹性件,所述配合件在所述弹性件提供的弹力的作用下向所述切割刀驱动件运动。
- 根据权利要求34所述的外科器械,其中,所述切割刀驱动件为有齿件,所述配合件包括棘爪,所述棘爪可转动地连接于所述手柄,所述弹性件为扭簧,所述棘爪在所述扭簧提供的弹力的作用下向所述切割刀驱动件运动。
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| CN202310071455.1 | 2023-02-02 | ||
| CN202310073005.6A CN118415699A (zh) | 2023-02-02 | 2023-02-02 | 外科器械 |
| CN202310101754.5A CN116549040A (zh) | 2023-02-02 | 2023-02-02 | 外科器械 |
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| CN118986460A (zh) * | 2024-10-24 | 2024-11-22 | 北京博辉瑞进生物科技有限公司 | 输送器 |
| CN119184771A (zh) * | 2024-11-22 | 2024-12-27 | 江苏科曼医疗科技有限公司 | 电动外科器械及其控制方法 |
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