WO2019128721A1 - 把手组件及包括其的吻合器 - Google Patents

把手组件及包括其的吻合器 Download PDF

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Publication number
WO2019128721A1
WO2019128721A1 PCT/CN2018/120699 CN2018120699W WO2019128721A1 WO 2019128721 A1 WO2019128721 A1 WO 2019128721A1 CN 2018120699 W CN2018120699 W CN 2018120699W WO 2019128721 A1 WO2019128721 A1 WO 2019128721A1
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WO
WIPO (PCT)
Prior art keywords
handle
stapler
housing
sliding slot
slider
Prior art date
Application number
PCT/CN2018/120699
Other languages
English (en)
French (fr)
Inventor
陈志�
郭毅
林江
徐晓伟
Original Assignee
苏州天臣国际医疗科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201721847008.7U external-priority patent/CN208958211U/zh
Priority claimed from CN201721849603.4U external-priority patent/CN208464168U/zh
Application filed by 苏州天臣国际医疗科技有限公司 filed Critical 苏州天臣国际医疗科技有限公司
Priority to RU2020122597A priority Critical patent/RU2738840C1/ru
Priority to AU2018396743A priority patent/AU2018396743B2/en
Priority to KR1020207019342A priority patent/KR102470078B1/ko
Priority to BR112020012322-6A priority patent/BR112020012322B1/pt
Priority to JP2020554351A priority patent/JP7029548B2/ja
Priority to US16/957,544 priority patent/US11337703B2/en
Priority to CA3085637A priority patent/CA3085637C/en
Priority to EP18897538.7A priority patent/EP3733091A4/en
Publication of WO2019128721A1 publication Critical patent/WO2019128721A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115—Staplers for performing anastomosis in a single operation
    • A61B17/1155—Circular staplers comprising a plurality of staples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115—Staplers for performing anastomosis in a single operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/326—Circumcision apparatus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00464—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable for use with different instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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
    • A61B2017/07257—Stapler heads characterised by its anvil
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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
    • A61B2017/07271—Stapler heads characterised by its cartridge
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1132—End-to-end connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B2017/1135—End-to-side connections, e.g. T- or Y-connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2946—Locking means
    • 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
    • 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
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0807—Indication means
    • A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument

Definitions

  • the present invention relates to the field of medical device technology, and in particular to the field of stapler technology, and in particular to a handle assembly and a stapler including the same.
  • Gastrointestinal tumors are one of the most common diseases in humans.
  • round tube type staplers are often used to replace the physiological tissues of the digestive tract in place of the doctor's manual operation.
  • the circular tube stapler is a common surgical instrument. Most of them adopt the axial internal binding method.
  • the endoscopic or end-to-side anastomosis is formed on the esophagus, stomach, intestine and other physiological tissues.
  • the segment tissue is restrained and accommodated in the stapler, and after the firing is completed, a circular anastomosis is formed on the tissue to reconstruct the tissue passage.
  • a round tube stapler includes a stapler body, a handle assembly that movably connects the stapler body, and an anvil assembly that mates with the body.
  • the stapler body includes a staple cartridge assembly disposed at a distal end, the cartridge assembly including an annular staple cartridge, a cutter, and a knob disposed at a proximal end of the body, the knob being rotatable relative to the body.
  • the distal end and the proximal end are relative to the operator, and the end closer to the operator is the proximal end, and the end farther from the operator, that is, the end closer to the surgical position is the distal end.
  • the anvil assembly includes an anvil, an anvil cap disposed on top of the anvil, an anvil disposed within the anvil, and an anvil shaft removably coupled to the stapler body.
  • the anvil shaft passes out from the purse at one end of the tissue, is disposed at the distal end of the stapler body, and rotates the knob to gradually reduce the distance between the anvil and the staple cartridge to reach one. After a suitable distance, the fired state is reached before the hand-held firing device can be gripped to complete the anastomosis.
  • round tube staplers are also increasingly used in the treatment of diseases such as acne.
  • a foreskin stapler is also described in the prior art and is similar in construction to the digestive tract-type stapler described above, except that the glans cap assembly is mated with the body.
  • the glans cap assembly includes an anvil, a glans cap fixedly coupled to the anvil, an anvil, and a central rod removably coupled to the stapler body.
  • the foreskin tissue to be removed is fixed on the glans cap, and then the center rod is disposed at the distal end of the stapler body, and the knob is rotated to gradually reduce the distance between the glans cap and the staple cartridge to a suitable one. After the distance, the fired state is reached, and the hand-held firing device can be gripped to complete the anastomosis.
  • an object of the present invention is to provide a handle assembly and a stapler including the same, which divide the handle into a first handle member and a second handle, and control the first handle member and the first position by the moving position of the slider
  • the slider can be reset by the action of the compression spring after being released from the force of the pointer, and the position of the compression spring is defined by the first limiting structure of the slider and the second limiting structure of the first handle member.
  • Embodiments of the present invention provide a handle assembly for firing a stapler, the handle assembly including:
  • the first handle member is provided with a sliding slot, the sliding slot includes a first segment and a second segment that communicate with each other, and a slider is slidably disposed in the sliding slot, and one end of the slider is disposed
  • the second limiting structure is disposed at the end of the second section of the sliding slot, and a compression spring is disposed between the first limiting structure and the second limiting structure;
  • the slider is located in the first section of the sliding slot, and when the first handle member rotates in the first direction, the slider does not interfere with the second handle, and the second handle does not rotate;
  • the slider is moved by an external force to the second segment of the sliding slot, and when the first handle member rotates in the first direction, the compression spring is deformed, and the slider interferes with the second handle, and When the second handle is pushed to rotate, and the slider is disengaged from an external force, the restoring force of the compression spring pushes the slider to reset.
  • the slider includes two sliding portions and an abutting portion between the two sliding portions;
  • the first handle member includes an inner cavity, and the side walls of the cavity respectively have the sliding portion a slot, the two sliding portions are respectively disposed in the sliding grooves on both sides;
  • Each of the ends of the second section of the sliding slot is respectively provided with a second limiting structure, and one end of the two sliding portions is respectively provided with the first limiting structure, the first limiting structure and A corresponding compression spring is disposed between the corresponding second limiting structures.
  • the first handle member includes a first handle, and the sliding slot is disposed on the first handle.
  • the first handle member includes a first handle and a handle housing, the handle housing is sleeved on the outside of the first handle, and the sliding slot includes a first sliding slot and a second sliding slot that communicate with each other.
  • the first sliding slot and the second sliding slot respectively include corresponding first and second segments, the first sliding slot is disposed on the first handle, and the second sliding slot is disposed on the handle shell Physically.
  • one end of the slider is embedded in the second sliding slot, and the second limiting structure is disposed at an end of the second segment of the second sliding slot.
  • each of the two sides of the first handle is respectively provided with the first sliding slot
  • the handle housing is correspondingly provided with two second sliding slots
  • the sliding block includes two sliding portions at both ends and An abutting portion between the two sliding portions, each of the sliding portions being respectively embedded in the corresponding second sliding slot;
  • Each of the ends of the second section of the second sliding slot is respectively provided with a second limiting structure, and one end of the two sliding portions is respectively provided with the first limiting structure, the first limiting position
  • a compression spring is disposed between the structure and the corresponding second limiting structure.
  • the length of the sliding portion along the extending direction of the sliding slot is greater than the length of the abutting portion along the extending direction of the sliding slot.
  • the second sliding slot is opened at a distal end of the handle housing, and the second sliding slot is communicated to an upper end surface of the handle housing.
  • a first side of the distal end of the handle housing is in contact with a housing of the stapler, and a position of the housing of the stapler corresponding to a second side of the distal end of the handle housing is set There is a handle opening for receiving the distal end of the handle housing when rotated in the first direction.
  • first limiting structure and the second limiting structure are respectively protrusions, and the two ends of the compression spring are respectively sleeved on the first limiting structure and the second limiting structure.
  • the height of the second section of the chute is greater than the height of the first section of the chute, and the first section and the second section are smoothly transitioned; the inner wall of the second section is provided with a convex
  • the pillar support base is provided with the second limiting structure, and the height of the pillar supporting seat is greater than the height of the second limiting structure.
  • first limiting structure and the second limiting structure are respectively hooks, and two ends of the compression spring are respectively hung on the first limiting structure and the second limiting structure.
  • it also includes:
  • first torsion spring and a first pin the first pin is disposed in the first handle member and the second handle, the first pin is fixed to the housing of the stapler, the first a torsion spring is sleeved on the first pin shaft, and two ends of the first torsion spring respectively abut the housing of the stapler and the second handle;
  • the second pin shaft is fixed to the housing of the stapler
  • the second torsion spring is sleeved on the second pin shaft
  • the second torsion spring The two ends respectively oppose the housing of the stapler and the first handle member.
  • it also includes:
  • first torsion spring and a first pin the first pin is disposed in the first handle member and the second handle, the first pin is fixed to the housing of the stapler, the first a torsion spring is sleeved on the first pin shaft, and two ends of the first torsion spring respectively abut the housing of the stapler and the second handle;
  • a compression spring is disposed between the first handle member and the housing of the stapler.
  • it also includes:
  • first torsion spring and a first pin
  • the first pin is inserted into the first handle member and fixed to the second handle
  • the first torsion spring is sleeved on the first pin
  • the two ends of the first torsion spring respectively abut the first handle member and the second handle
  • the second pin shaft is disposed on the second handle and fixed to the housing of the stapler, and the second torsion spring is sleeved on the second pin shaft And the two ends of the second torsion spring respectively abut the second handle and the housing of the stapler.
  • the pointer is connected to the distal end of the pull tab, the proximal end of the pull tab is sleeved on the screw rod, and the distal end of the screw rod is provided with a knob, and the knob is rotated to drive the pull tab to the stapler The proximal end moves, and the pull tab drives the pointer to move from the first position area to the second position area.
  • Embodiments of the present invention also provide a stapler including the handle assembly.
  • the present invention provides a handle assembly and a stapler including the same, dividing the handle into a first handle member and a second handle, and controlling the linkage state of the first handle member and the second handle by the positional movement of the slider, and only the second
  • the rotation of the handle can be used to fire the stapler, thereby avoiding the misfire when the stapler does not meet the firing condition, and in the failed state, the first handle member can still be gripped without causing cracking of the housing;
  • a compression spring is disposed between the slider and the sliding slot, and the position of the compression spring is defined by the first limiting structure of the slider and the second limiting structure of the first handle member. After the slider is disengaged from the external force, the pressing spring may be The effect is reset.
  • FIG. 1 is a schematic structural view of a handle assembly for a stapler according to an embodiment of the present invention
  • FIGS. 2 to 3 are schematic views showing the structure of a handle assembly according to a first embodiment of the present invention applied to a conventional stapler;
  • FIG. 4 is a schematic structural view of a handle assembly according to a first embodiment of the present invention applied to a sheath stapler;
  • Figure 5 is a schematic view showing the structure of the handle assembly of the first embodiment of the present invention in an initial state
  • FIG. 6 is a schematic structural view of a chute according to a first embodiment of the present invention.
  • Figure 7 is a perspective view of the handle assembly of the first embodiment of the present invention in an initial state
  • Figure 8 is a schematic view showing the structure of the pointer and the slider in the initial state according to the first embodiment of the present invention.
  • 9 to 11 are schematic structural views of the handle assembly according to the first embodiment of the present invention in a state of failure
  • Figure 12 is a schematic view showing the structure of the handle assembly when the pointer is moved to the second position area according to the first embodiment of the present invention
  • 13 to 15 are structural views showing the handle assembly of the first embodiment of the present invention in a fired state
  • Figure 16 is a structural schematic view showing the handle assembly of the second embodiment of the present invention in an initial state
  • Figure 17 is an enlarged view of a portion A in Figure 16;
  • Figure 18 is an exploded view of the handle assembly of the second embodiment of the present invention.
  • Figure 19 is a perspective view of a handle housing of a second embodiment of the present invention.
  • Figure 20 is a front elevational view showing the handle assembly of the second embodiment of the present invention in an initial state
  • FIG. 21 and FIG. 22 are schematic structural views showing the handle assembly of the second embodiment of the present invention in a failed state
  • 23 and 24 are structural views showing the handle assembly of the second embodiment of the present invention in a fired state.
  • the present invention provides a handle assembly for firing a stapler, the handle assembly including a first handle member and a second handle, wherein the first handle member is provided with a slip a slot, the slot includes a first segment and a second segment that are in communication with each other, a slider is slidably disposed in the slot, and one end of the slider is provided with a first limiting structure, and the first slot The end of the two segments is provided with a second limiting structure, and a compression spring is disposed between the first limiting structure and the second limiting structure; the first end of the second handle and the first handle member are rotatable connection.
  • the present invention also provides a round tube stapler comprising the handle assembly.
  • the slider is located in the first section of the sliding slot, and when the first handle member rotates in the first direction, the slider does not interfere with the second handle, and the second handle does not rotate;
  • the compression spring is deformed, and the slider interferes with the second handle and pushes the
  • the restoring force of the compression spring pushes the slider to reset.
  • the present invention avoids false firings when the stapler does not meet the firing conditions, and in the failed state, the first handle member is still gripable without causing cracking of the housing; between the slider and the chute A compression spring is disposed, and the position of the compression spring is defined by the first limiting structure of the slider and the second limiting structure of the first handle member, and after the slider is disengaged from the external force, it can be reset according to the action of the compression spring.
  • FIG. 1 to 15 show the structure of a stapler and a handle assembly thereof according to a first embodiment of the present invention, wherein the first handle member includes a first handle, and the sliding groove is disposed on a side wall of the first handle.
  • 16 to 24 show a structure of a stapler and a handle assembly thereof according to a second embodiment of the present invention, wherein the first handle member includes a first handle and a handle housing sleeved outside the first handle, the first handle and the handle housing A chute is disposed on the upper side, and the first chute on the first handle is in communication with the second chute on the handle housing.
  • Fig. 1 shows the structure of a stapler according to an embodiment of the present invention.
  • the distal end of the stapler is provided with a cartridge assembly 72 and an anvil assembly 73.
  • the proximal end is provided with a knob 71 and a handle assembly.
  • the outside of the handle assembly is provided with a handle housing 16, and the stapler can be fired by pressing the handle assembly.
  • the present invention divides the handle assembly into a first handle member and a second handle 2, the first handle member specifically including the first handle 1, and only when the second handle 2 is rotated, the stapler can be fired.
  • the first handle 1 and the second handle 2 are rotatably connected.
  • the operator can press the first handle 1, but cannot drive the second handle 2 to rotate, and thus cannot be fired.
  • the stapler when the first handle 1 and the second handle 2 are interlocked, the operator presses the first handle 1, and also drives the second handle 2 to rotate, thereby firing the stapler.
  • a first sliding slot 41 and a slider 42 are further disposed on the first handle 1, and the first sliding slot 41 includes a first segment 411 and a second segment 412 that are in communication.
  • the second handle 2 includes a handle abutting portion; when the slider 42 is located in the first segment 411 of the first sliding slot 41, and the first handle 1 is held in the first direction by the grip, the slider 42 does not interfere with the handle abutting portion.
  • the second handle 2 is in the secured position, that is, the first handle 1 rotates, but does not fire the stapler, and is in a failed state.
  • the first direction is the counterclockwise direction shown in the drawing, but the invention is not limited thereto.
  • the doctor when the doctor holds the first handle 1, the first handle 1 can be easily rotated, but the second handle 2 is not triggered, and since the air is blown at this time, the force for holding the first handle 1 is very small.
  • the doctor can also learn from this operation that the current state of the stapler is in an unfired state and does not cause the housing of the stapler to rupture.
  • the slider 42 When the slider 42 is located in the second section 412 of the first sliding slot 41, and the first handle 1 is gripped to rotate in the counterclockwise direction, the slider 42 interferes with the handle abutting portion and drives the second handle 2 from the safe position to the firing position. Rotate.
  • the pusher bar 75 When the second handle 2 is rotated in the counterclockwise direction, the pusher bar 75 is simultaneously pushed to the distal end of the stapler to drive the firing stapler.
  • first segment 411 and the second segment 412 of the first sliding slot 41 in the present invention are a relative concept, and are not necessarily the two ends of the first sliding slot 41, that is, in FIG. In the illustrated viewing angle, the first segment 411 of the first chute 41 is located on the right side of the second segment 412.
  • the slider 42 is located in the first section 411 and the second section 412 of the first sliding slot 41, the first handle 1 is held, and the relationship between the slider 42 and the handle abutting portion 25 is different: the slider 42 is located in the first sliding slot 41.
  • the first segment 411 does not interfere with the handle abutment portion, and when located in the second segment 412 of the first chute 41, it will interfere with the handle abutment portion.
  • the movement of the slider 42 from the first segment 411 of the first chute 41 to the second segment 412 is controlled by the pointer 5.
  • the pointer 5 includes a first end 51, a positioning portion 53 and a second end 52.
  • the first end 51 of the pointer 5 is provided with a protrusion 54 corresponding to the hook position of a pull tab 6, the positioning portion of the pointer 5.
  • 53 is rotatably secured to the housing 74 of the stapler.
  • the tail of the pull tab 6 is fixed to a threaded rod 76 and moves as the threaded rod 76 moves.
  • the screw rod 76 moves to the proximal end to drive the pull tab 6 to move toward the proximal end of the stapler, and the pull hook of the pull tab 6 can drive the first end 51 of the pointer 5 to rotate in the second direction to
  • the first end 51 of the pointer 5 is moved from the first position area to the second position area
  • the second end 52 of the pointer 5 pushes the slider 42 from the first section 411 of the first chute 41 to the first chute 41.
  • the second segment 412 moves.
  • the second direction is the clockwise direction shown in the drawing, but the invention is not limited thereto.
  • the window is provided on the stapler body corresponding to the first positional area and the second positional area for observing the position of the first end 51 of the pointer during use, and the first end 51 of the pointer is in the first positional area.
  • the stapler is in an insured state, at this time the stapler can not be fired, when the first end 51 of the pointer is in the second position area, the stapler can be fired, in order to more intuitively give the doctor a hint, corresponding to the smearable number on the window
  • the two-position area is a green area, which has been disclosed in the prior art.
  • a compression spring 45 is also added to the slider 42.
  • one end of the slider 42 is provided with a first limiting structure 43
  • the end of the second section 412 of the first sliding slot 41 is provided with a second limiting structure 44
  • the first limiting structure 43 and the second limiting position A compression spring 45 is disposed between the structures 44.
  • the end of the second section 412 of the first chute 41 refers to the end of the second section 412 away from the first section 411, ie the left position in FIG.
  • the first handle 1 includes a cavity 13 , and the two side walls of the cavity 13 are respectively provided with a first sliding slot 41 , and the slider 42 includes between the two sliding portions 421 and the sliding portion 421 .
  • the two sliding portions 421 are slidably disposed in a first sliding slot 41.
  • a second limiting structure 44 is disposed at an end of each of the second sliding portions 412.
  • the first limiting structure 43 is disposed at one end of each of the two sliding portions 421, and the first limiting structure 43 and the corresponding
  • a compression spring 45 is disposed between the second limiting structures 44, respectively.
  • the length of the sliding portion 421 along the extending direction of the first sliding slot 41 is greater than the length of the abutting portion 422 along the extending direction of the first sliding slot 41, so that the stability of the slider 42 in the first sliding slot 41 can be maintained. Sex.
  • the first chute 41 communicates with the inside and the outside of the cavity 13 of the first handle 1. That is, the structure of the first chute 41 and the slider 42 can also be seen from the outer wall of the first handle 1.
  • the compression spring 45 can be directly mounted outside the first handle 1, and the current position of the slider 42 and the compressed state of the compression spring 45 can be seen from the outside of the first handle 1.
  • the exterior of the first handle 1 is also provided with a handle housing 16, generally of a plastic material, to protect the first handle 1, and to provide a smoother line for an operator experience.
  • the first limiting structure 43 and the second limiting structure 44 are respectively protrusions, and the two ends of the compression spring 45 are respectively sleeved on the first limiting structure 43 and the second limiting structure 44. Therefore, the size of the two studs is adapted to the size of the compression spring 45 to avoid the detachment of the compression spring 45 from the stud.
  • the structure of the limiting structure of the compression spring 45 is not limited thereto, and other structures are also included in the protection scope of the present invention.
  • the first limiting structure 43 and the second limiting structure 44 may be hooks respectively. The two ends of the compression spring 45 are respectively hung on the first limiting structure 43 and the second limiting structure 44 to limit the compression spring 45. Bit.
  • first pin 31 and the second handle 2 are simultaneously provided with a first pin 31.
  • the first pin 31 is fixed to the housing 74 of the stapler, and the first torsion spring 32 is sleeved thereon. . Both ends of the first torsion spring 32 respectively abut against the housing 74 of the stapler and the second handle 2, and after the second handle 2 is rotated, the second handle 2 can be reset if the external force is released.
  • a second torsion spring 34 and a second pin shaft 33 are also provided for the reset of the first handle 1.
  • the second pin 33 is fixed to the housing 74 of the stapler, the second torsion spring 34 is sleeved on the second pin 33, and the two ends of the second torsion spring 34 respectively abut the housing 74 of the stapler and the first handle 1 .
  • the second torsion spring and the second pin for resetting the first handle may be replaced with at least one compression spring, and the compression spring is connected between the first handle and the housing of the stapler, and when the first handle is rotated, the compression compression spring is generated. Deformation, when the first handle is released, the compression spring is restored to reset the first handle.
  • a double rotation center for example, a first torsion spring and a first pin, and a second torsion spring and a second pin.
  • the first pin shaft is fixed to the second handle and is disposed in the first handle.
  • the first torsion spring is sleeved on the first pin shaft, and the two ends of the first torsion spring respectively abut the first handle and the second handle, which can be realized.
  • a second handle is fixed; the second pin is fixed to the housing of the stapler and is disposed in the second handle, the second torsion spring is sleeved on the second pin, and the two ends of the second torsion spring respectively abut the second
  • the handle and the housing of the stapler can be used to reset the second handle.
  • the first handle and the second handle are rotated about the first torsion spring and the second torsion spring, respectively.
  • the present invention can be applied not only to a conventional round tube type stapler but also to a foreskin stapler.
  • a foreskin stapler As shown in Fig. 4, the structure of the sheath stapler body 8 to which the handle assembly is applied is shown.
  • the distal end of the foreskin stapler body 8 includes a cartridge assembly 81 and is additionally provided with a glans cap assembly (not shown) that mates with the cartridge assembly 81.
  • the second handle 2 When the foreskin stapler is used, the second handle 2 is movably connected to one end of the foreskin stapler, and the second end of the second handle 2 is matched with the pusher member of the foreskin stapler, and when the squeezable condition is satisfied, the second handle 2 will Push the nail pushing parts to achieve the firing of the wrapping stapler.
  • the structure of the first chute 41 of this embodiment can be seen in Figures 6-8.
  • the height of the second section 412 of the first sliding slot 41 is greater than the height of the first section 411, and the first section 411 and the second section 412 are smoothly transitioned by the inclined surface; the inner wall of the end of the second section 412 is provided with a protruding post.
  • the support base 413 is provided with a second limiting structure 44 on the stud support 413, and the height of the stud support 413 is greater than the height of the second limiting structure 44. Since the height of the second limiting structure 44 itself is limited by the compression spring 45, if it is made large, it cannot be connected with the compression spring. Therefore, this embodiment adds the pillar supporting seat 413 to the second limiting structure 44. Better support.
  • the first end 11 of the first handle 1 is a grip portion, and the second end 12 includes a connecting portion; the first end 21 of the second handle 2 is located inside the cavity of the connecting portion, and the second end 22 is pushed The shank 75 is in contact with it.
  • the device is in an insured state. Since the torsion force of the second torsion spring 34 is much smaller than the firing force, the first handle 1 can rotate counterclockwise around the first pin shaft 31 when the operator receives a small holding force, and the second handle 2 continues to enter. The inside of the cavity of the first handle 1, that is, the first handle 1 and the second handle 2 are in a non-coupling state, and the second handle 2 does not rotate.
  • the first handle 1 When the operator grips the first handle 1, the first handle 1 can be easily rotated, but the rotation of the second handle 2 is not driven, and the firing of the stapler cannot be completed. The operator can also obtain tactile feedback at this time, knowing that the first end 51 of the current pointer 5 has not reached the second position area and has not fired. When the external force is released, the first handle 1 is reset by the action of the second torsion spring 34.
  • a schematic view of the first end 51 of the pointer 5 of this embodiment is moved to the second position area.
  • the knob 71 is rotated to cause the screw rod 76 to move the pull tab 6 to the proximal end, and the first end 51 of the pointer 5 is moved in the clockwise direction, so that the first end 51 of the pointer 5 enters the second position from the first position region. Location area. Therefore, the second end 52 of the pointer 5 pushes the slider 42 to move toward the second section 412 of the first sliding slot 41, so that the first limiting structure 43 approaches the second limiting structure 44, and the compression compression spring 45 is deformed. At this time, the handle abutting portion of the second handle 2 will interfere with the slider 42 in the rotation path of the first handle 1.
  • 13 to 15 show the structure of the handle assembly of this embodiment in a fired state.
  • the slider 42 opposes the second handle 2 abutting portion and blocks the second handle 2 from continuing into the internal cavity of the first handle 1.
  • the second handle 2 and the first handle 1 become in a linked state.
  • the second handle 2 rotates counterclockwise with the first handle 1, and the second end 22 of the second handle 2 pushes the push rod 75, which pushes the stapler and the annular cutter of the stapler to the tissue for the operation. Stitching and cutting.
  • the compression spring 45 is gradually compressed during the movement of the slider 42.
  • the second handle 2 is further provided with a tab abutting portion 23, and when the second handle 2 is rotated from the securing position to the firing position, the tab abutting portion 23 pushes up the tab 6 at the ejector vertex, so that the tab is pulled The hook of 6 is disengaged from the pointer 5.
  • the pointer 5 returns to the initial position in the counterclockwise direction.
  • a metal piece 77 is disposed in the housing 74 of the stapler corresponding to the first end 51 of the pointer 5, and when the pointer 5 returns to the initial position, it collides with the metal piece 77 to make a sound.
  • the second end 52 of the pointer 5 is disengaged from the slider 42 after the first handle 1 is released. Then, after the pointer 5 is reset, since the pointer 5 no longer exerts a force on the slider 42, the deformation force of the compression spring 45 when returning to the original state can push the slider 42 to slide back to the first segment 411 of the first sliding slot 41, Restore to the original position.
  • the second handle 2 also returns to the initial position under the restoring force of the first torsion spring 31. Since the first handle 1 is engaged with the second handle 2 under the action of the slider, it is first reset with the second handle 2 and at the same time reset by the second torsion spring 34.
  • 16 to 24 are views showing the structure of a stapler and a handle case thereof according to a second embodiment of the present invention.
  • the first embodiment is different from the first embodiment in that the first handle member includes a first handle 1 and a handle housing 16.
  • the first handle 1 is provided with a first sliding slot 41
  • the handle housing 16 is provided with a second sliding slot 161.
  • the first sliding slot 41 on the first handle 1 and the second sliding slot 161 on the handle housing 16 communicate with each other, and the second limiting structure 44 is disposed at the end of the second section of the second sliding slot 161.
  • the first section of the second chute 161 corresponds to the first section 411 of the first chute 41
  • the second section of the second chute 161 corresponds to the second section 412 of the first chute 41
  • the slider 42 passes through the A sliding slot 41 is embedded in the second sliding slot 161.
  • the second handle 2 includes a handle abutting portion; when the slider 42 is located in the first section of the second sliding slot 161, and the first handle 1 is held in the first direction by the grip, the slider 42 does not interfere with the handle abutting portion, and the second The handle 2 is in the secured position, that is, the first handle 1 rotates, but does not fire the stapler, and is in a failed state.
  • the doctor holds the first handle 1 and the handle housing 16, the first handle 1 and the handle housing 16 can be easily rotated, but the second handle 2 is not triggered, and since it is in an empty firing state, the grip is held.
  • the force of the first handle 1 is very small.
  • the doctor can also learn from this operation that the current state of the stapler is in an unfired state and does not cause the housing of the stapler to rupture.
  • the slider 42 When the slider 42 is located in the second section of the second sliding slot 161, and the first handle 1 and the handle housing 16 are rotated in the counterclockwise direction, the slider 42 interferes with the handle abutting portion and drives the second handle 2 to be fired from the safe position. Position rotation. When the second handle 2 is rotated in the counterclockwise direction, the pusher bar 75 is simultaneously pushed to the distal end of the stapler to drive the firing stapler.
  • first segment and the second segment of the second sliding slot 161 in the present invention are also a relative concept, and are not necessarily the two ends of the second sliding slot 161, that is, shown in FIG. In the viewing angle, the first segment of the second chute 161 is located on the right side of the second segment.
  • the slider 42 When the slider 42 is located in the first section of the second sliding slot 161, it does not interfere with the handle abutting portion, and when it is located in the second segment of the second sliding slot 161, it will interfere with the handle abutting portion.
  • the movement of the slider 42 from the first segment to the second segment of the second chute 161 can also be controlled by the pointer 5.
  • the knob 71 rotates in one direction
  • the screw rod 76 moves to the proximal end to drive the pull tab 6 to move toward the proximal end of the stapler
  • the pull hook of the pull tab 6 can drive the first end 51 of the pointer 5 to rotate in the second direction to
  • the second end 52 of the pointer 5 in turn urges the slider 42 to move from the first section to the second section of the second chute 161.
  • one end of the slider 42 is provided with a first limiting structure 43
  • the end of the second section of the second sliding slot 161 is provided with a second limiting structure 44
  • the first limiting structure 43 and the second A compression spring 45 is disposed between the limiting structures 44.
  • the end of the second section of the second chute 161 refers to the end of the second section away from the first section of the second chute 161, that is, the left side position in FIG.
  • the second end 52 of the pointer 5 pushes the slider 42 to compress the compression spring 45 to deform, and when the external force is released, the first end 51 of the pointer 5 When returning to the first positional area, the restoring force of the compression spring 45 can push the slider 42 back to the first section of the second chute 161.
  • the first handle 1 includes a first cavity 13 , and two sidewalls of the first cavity 13 are respectively provided with a first sliding slot 41 , and the handle housing 16 is correspondingly provided with two second slidings In the slot 161, the slider 42 includes two sliding portions 421 and an abutting portion 422 between the sliding portions 421.
  • the two sliding portions 421 are slidably disposed in a second sliding slot 161.
  • a second limiting structure 44 is disposed at each end of each of the second sliding grooves 161.
  • One end of each of the two sliding portions 421 is respectively provided with a first limiting structure 43, and the first limiting structure 43 and the corresponding A compression spring 45 is disposed between the second limiting structures 44, respectively.
  • the length of the sliding portion 421 in the extending direction of the second sliding groove 161 is greater than the length of the abutting portion 422 along the extending direction of the second sliding groove 161, and the stability of the slider 42 in the sliding groove 41 can be maintained.
  • the working state of the compression spring 45 can be directly seen from the outside of the handle housing 16, which is convenient for inspection, and is not installed and replaced.
  • the need to remove the handle housing 16 can be performed, making the handling and maintenance of the handle assembly and the stapler more cost effective.
  • the structure of the handle housing 16 and the mating relationship with the stapler can be specifically seen in Figures 18 and 19.
  • the proximal end of the handle housing 16 is a grip end that mates with the housing 74 of the stapler.
  • the second chute 161 is opened at the distal end of the handle housing 16 and communicates to the upper end surface of the handle housing 16 at all times.
  • the upper end surface of the handle housing 16 is the tip end surface of the handle housing 16 in the perspective of FIG. That is, the second chute 161 is a slot that is open at the upper end, and the compression spring 45 can be directly mounted and removed from above the handle housing 16. Due to the positional limitation of the two limiting structures, there is no need to worry about the positional deviation of the compression spring 45 during normal use.
  • One side of the distal end of the handle housing 16 is in contact with the housing 74 of the stapler, and the housing 74 of the stapler is provided with a handle opening 749 at a position corresponding to the other side of the distal end of the handle housing 16 to accommodate the counterclockwise Handle housing 16 when rotated.
  • the first limiting structure 43 and the second limiting structure 44 are respectively protrusions, and the two ends of the compression spring 45 are respectively sleeved on the first limiting structure 43 and the second limiting structure 44. Therefore, the size of the two studs is adapted to the size of the compression spring 45 to avoid the detachment of the compression spring 45 from the stud.
  • the structure of the limiting structure of the compression spring 45 is not limited thereto, and other structures are also included in the protection scope of the present invention.
  • the first limiting structure 43 and the second limiting structure 44 may be hooks respectively. The two ends of the compression spring 45 are respectively hung on the first limiting structure 43 and the second limiting structure 44 to limit the compression spring 45. Bit.
  • Figs. 21 and 22 The structure of the handle assembly of this embodiment in the state of failure is shown in Figs. 21 and 22 .
  • the pull tab 6 does not pull the pointer 5, so the position of the pointer 5 does not change, the slider 42 is still located in the first section of the second sliding slot 161, in the rotation path of the first handle 1, the slider 42 and the second The handle of the handle 2 does not interfere with the handle.
  • the slider 42 in the initial position, the slider 42 is located under the action of the compression spring 45 at the end of the first section of the second chute 161 away from the end of the second section, that is, the right end of the figure. It is of course also possible to limit the initial position of the slider 42 by the second end 52 of the pointer 5. At this point, the device is in an insured state.
  • the first handle 1 can rotate counterclockwise around the first pin shaft 31 when the operator receives a small holding force, and the second handle 2 continues to enter.
  • the inside of the cavity of the first handle 1, that is, the first handle 1 and the second handle 2 are in a non-coupling state, and the second handle 2 does not rotate.
  • the first handle 1 can be easily rotated, but the rotation of the second handle 2 is not driven, and the firing of the stapler cannot be completed.
  • the operator can also obtain tactile feedback at this time, knowing that the first end 51 of the current pointer 5 has not reached the second position area, and there is no firing.
  • the first handle 1 is reset by the action of the second torsion spring 34.
  • the structure of the handle assembly of this embodiment in the fired state is shown in Figs. 23 and 24 .
  • the knob 71 is rotated to cause the screw rod 76 to move the pull tab 6 to the proximal end, and the first end 51 of the pointer 5 is moved in the clockwise direction, so that the first end 51 of the pointer 5 enters the second position from the first position region.
  • the second end 52 of the pointer 5 pushes the slider 42 to move toward the second section of the second chute 161 to interfere with the first stop structure 43 and the second stop structure 44.
  • the slider 42 interferes with the handle abutment 25 and blocks the second handle 2 from continuing into the internal cavity of the first handle 1.
  • the second handle 2 and the first handle 1 become in a linked state.
  • the second handle 2 rotates counterclockwise with the first handle 1, and the second end 22 of the second handle 2 pushes the push rod 75, which pushes the stapler and the annular cutter of the stapler to the tissue for the operation. Stitching and cutting.
  • the compression spring 45 is gradually compressed during the movement of the slider 42.
  • the tab abutting portion 23 on the second handle 2 lifts the tab 6 at the apex of the ejector, so that the tab of the tab 6 is disengaged from the pointer 5.
  • the pointer 5 returns to the initial position in the counterclockwise direction.
  • a metal piece 77 is disposed in the housing 74 of the stapler corresponding to the first end 51 of the pointer 5, and when the pointer 5 returns to the initial position, it collides with the metal piece 77 to make a sound. , prompts the operator pointer to be reset.
  • the second end 52 of the pointer 5 is disengaged from the slider 42 after the first handle 1 is released. Then, after the external force of the pointer 5 is lost, the deformation force of the compression spring 45 when it is restored to the original state pushes the slider 42 to slide back to the first end of the second chute 161 to return to the initial position.
  • the second handle 2 also returns to the initial position under the restoring force of the first torsion spring 31. Since the first handle 1 is engaged with the second handle 2 under the action of the slider, it is first reset with the second handle 2 and at the same time reset by the second torsion spring 34.
  • An embodiment of the invention also provides a stapler comprising the handle assembly.
  • the stapler does not reach the squeezable state
  • the first handle does not drive the second handle, and the stapler is not fired.
  • the doctor can also judge the firing state through the operation experience. Only when the stapler reaches the squeezable state, the first handle The movement will drive the movement of the second handle and then fire the stapler. Therefore, on the basis of avoiding the stapler being accidentally hit, the cracking of the stapler casing is avoided.
  • the stapler controls the linkage state of the first handle and the second handle by the moving position of the slider. After the firing is completed, the slider can return to the initial position by the resetting action of the compression spring.
  • the present invention provides a handle assembly and a stapler including the same, dividing the handle into a first handle member and a second handle, and controlling the linkage state of the first handle member and the second handle by the positional movement of the slider, and only the second
  • the rotation of the handle can be used to fire the stapler, thereby avoiding the misfire when the stapler does not meet the firing condition, and in the failed state, the first handle member can still be gripped without causing cracking of the housing;
  • a compression spring is disposed between the slider and the sliding slot, and the position of the compression spring is defined by the first limiting structure of the slider and the second limiting structure of the first handle member. After the slider is disengaged from the external force, the pressing spring may be The effect is reset.

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Abstract

一种把手组件及包括把手组件的吻合器，把手组件包括：第一把手构件，第一把手构件上设置有滑槽(41)，滑槽(41)中可滑动设置有一滑块(42)，滑块(42)的一端有第一限位结构(43)，滑槽(41)的第二段(412)设置有第二限位结构(44)，两个限位结构(43、44)之间设置有压簧(45)；以及第二把手(2)，第二把手(2)的第一端与第一把手构件可旋转连接，滑块(42)受外力向滑槽(41)的第二段(412)移动，且第一把手构件沿第一方向旋转时，压簧(45)产生变形，滑块(42)与第二把手(2)抵触，并推动第二把手(2)旋转，且滑块(42)脱离外力时，压簧(45)推动滑块(42)复位。把手组件将把手分为第一把手构件和第二把手(2)，通过滑块(42)的移动位置来控制两者的联动状态，滑块(42)在脱离外力后可以在压簧(45)的作用下复位，压簧(45)的位置通过滑块(42)的第一限位结构(43)和第一把手构件的第二限位结构(44)进行限定。

Description

把手组件及包括其的吻合器 技术领域
本发明涉及医疗器械技术领域，尤其涉及吻合器技术领域，具体涉及一种把手组件及包括其的吻合器。
背景技术
消化道肿瘤是人类高发的疾病之一，在治疗过程中，常使用圆管型吻合器代替医生的手工操作对消化道等生理组织进行吻合。圆管型吻合器是一种常见的外科手术器械，大多采用轴向内装订方式，在手术时对食管、胃、肠道等生理组织形成端对端的、或者端对侧的吻合，吻合时两段组织内敛收容于吻合器内，击发完成后在组织上形成圆形吻合口，重建了组织通道。
现有技术中，圆管型吻合器包括吻合器本体、活动连接所述吻合器本体的把手组件以及与所述本体配合的钉砧组件。所述吻合器本体包括设于远端的钉仓组件，所述钉仓组件包括环形钉仓、切刀；以及设于本体近端的旋钮，所述旋钮可相对于本体旋转。此处远端和近端是相对于操作者来说的，距离操作者较近的一端为近端，距离操作者较远的一端，即更靠近手术位置的一端为远端。所述钉砧组件包括钉砧、设置在钉砧顶部的钉砧帽、设置在钉砧内部的刀砧，以及与吻合器本体可拆卸地连接的钉砧轴。在手术过程中，离断去除肿瘤组织后，钉砧轴从组织一端的荷包穿出，配置于吻合器本体的远端，旋转旋钮，使钉砧和钉仓之间的距离逐渐减小达到一个合适的距离后，达到可击发状态，才能握持把手击发器械完成吻合。随着医疗器械的不断发展，圆管型吻合器也越来越广泛地应用于痔疮等疾病的治疗。
同时，在泌尿外科领域治疗包皮过长及包茎的手术中，也出现了另外一种形式的圆管型吻合器，即包皮吻合器。包皮吻合器在现有技术中也有描述，其结构类似于上述的消化道圆管型吻合器，区别仅在于与所述本体配合的是龟头帽组件。相似的，所述龟头帽组件包括钉砧、与钉砧固定连 接的龟头帽、刀砧，以及与吻合器本体可拆卸地连接的中心杆。在手术过程中，把待切除的包皮组织固定在龟头帽上，然后把中心杆配置于吻合器本体的远端，旋转旋钮，使龟头帽与钉仓之间的距离逐渐减小达到一个合适的距离后，达到可击发状态，才能握持把手击发器械完成吻合。
随着技术的发展，人们已经对圆管型吻合器的击发传动机构进行了改进，增加了保险机制，在吻合器未达到可击发状态时，医生即使按动把手，由于保险机制的作用，把手也无法按动，从而避免了器械击发造成的手术失败。然而，实际情况下，仍然存在有一些缺陷，例如医生的使用体验不高，另外医生如果用力按动把手，可能会导致吻合器的机壳开裂。
发明内容
针对现有技术中的问题，本发明的目的在于提供一种把手组件及包括其的吻合器，将把手分为第一把手构件和第二把手，通过滑块的移动位置来控制第一把手构件和第二把手的联动状态，滑块在脱离指针的作用力后可以在压簧的作用下复位，压簧的位置通过滑块的第一限位结构和第一把手构件的第二限位结构进行限定。
本发明实施例提供一种把手组件，用于吻合器的击发，所述把手组件包括：
第一把手构件，所述第一把手构件上设置有滑槽，所述滑槽包括相互连通的第一段和第二段，所述滑槽中可滑动设置有一滑块，所述滑块的一端设置有第一限位结构，所述滑槽的第二段的端部设置有第二限位结构，所述第一限位结构和第二限位结构之间设置有压簧；
第二把手，所述第二把手的第一端与所述第一把手构件可旋转连接；
所述滑块位于所述滑槽的第一段，且所述第一把手构件沿第一方向旋转时，所述滑块与所述第二把手不抵触，所述第二把手不旋转；
所述滑块受外力向所述滑槽的第二段移动，且所述第一把手构件沿第一方向旋转时，所述压簧产生变形，所述滑块与所述第二把手抵触，并推动所述第二把手旋转，且所述滑块脱离外力时，所述压簧的恢复力推动所述滑块复位。
可选地，还包括可在第一位置区域和第二位置区域之间移动的指针，所述指针从第一位置区域向第二位置区域移动时，推动所述滑块从所述滑槽的第一段移动至第二段。
可选地，所述滑块包括两个滑动部和两个滑动部之间的抵触部；所述第一把手构件包括内部的腔体，所述腔体的两侧侧壁分别开设有一所述滑槽，所述两个滑动部分别设置于两侧的滑槽中；
各个所述滑槽的第二段的端部分别设置有一所述第二限位结构，所述两个滑动部的一端分别设置有一所述第一限位结构，所述第一限位结构和所对应的第二限位结构之间分别设置有一所述压簧。可选地，所述第一把手构件包括第一把手，所述滑槽设置于所述第一把手上。
可选地，所述第一把手构件包括第一把手和把手壳体，所述把手壳体套设于所述第一把手的外部，所述滑槽包括相连通的第一滑槽和第二滑槽，所述第一滑槽和第二滑槽分别包括相对应的第一段和第二段，所述第一滑槽设置于所述第一把手上，所述第二滑槽设置于所述把手壳体上。
可选地，所述滑块的一端嵌设于所述第二滑槽中，所述第二限位结构设置于所述第二滑槽的第二段的端部。
可选地，所述第一把手的两侧分别设置有一所述第一滑槽，所述把手壳体对应设置有两个所述第二滑槽，所述滑块包括两端的两个滑动部和两个滑动部之间的抵触部，各个所述滑动部分别嵌设于所对应的第二滑槽中；
各个所述第二滑槽的第二段的端部分别设置有一所述第二限位结构，所述两个滑动部的一端分别设置有一所述第一限位结构，所述第一限位结构和所对应的第二限位结构之间分别设置有一所述压簧。
可选地，所述滑动部沿所述滑槽的延伸方向的长度大于所述抵触部沿所述滑槽的延伸方向的长度。
可选地，所述把手壳体的远端开设有所述第二滑槽，且所述第二滑槽连通至所述把手壳体的上端面。
可选地，所述把手壳体的远端的第一侧与所述吻合器的壳体抵触，所述吻合器的壳体与所述把手壳体的远端的第二侧对应的位置设置有把手 开口，用于容纳沿第一方向旋转时的把手壳体的远端。
可选地，所述第一限位结构和第二限位结构分别为凸柱，所述压簧的两端分别套设于所述第一限位结构和第二限位结构上。
可选地，所述滑槽的第二段的高度大于所述滑槽的第一段的高度，所述第一段和第二段之间平滑过渡；所述第二段的内壁设置有一凸柱支撑座，所述凸柱支撑座上设置有所述第二限位结构，且所述凸柱支撑座的高度大于所述第二限位结构的高度。
可选地，所述第一限位结构和第二限位结构分别为挂钩，所述压簧的两端分别挂在所述第一限位结构和第二限位结构上。
可选地，还包括：
第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手构件和第二把手中，所述第一销轴固定于所述吻合器的壳体，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述吻合器的壳体和所述第二把手；
第二扭簧和第二销轴，所述第二销轴固定于所述吻合器的壳体，所述第二扭簧套设于所述第二销轴上，且所述第二扭簧的两端分别抵触所述吻合器的壳体和所述第一把手构件。
可选地，还包括：
第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手构件和第二把手中，所述第一销轴固定于所述吻合器的壳体，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述吻合器的壳体和所述第二把手；
压簧，设置于所述第一把手构件和所述吻合器的壳体之间。
可选地，还包括：
第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手构件中且固定至所述第二把手，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述第一把手构件和所述第二把手；
第二扭簧和第二销轴，所述第二销轴穿设于所述第二把手且固定至所述吻合器的壳体，所述第二扭簧套设于所述第二销轴上，且所述第二扭簧 的两端分别抵触所述第二把手和所述吻合器的壳体。
可选地，所述指针连接于拉片的远端，所述拉片的近端套设于丝杆，所述丝杆远端设有旋钮，旋转所述旋钮带动所述拉片向吻合器的近端移动，所述拉片带动所述指针从第一位置区域向第二位置区域移动。
本发明实施例还提供一种吻合器，包括所述的把手组件。
本发明所提供的把手组件及包括其的吻合器具有下列优点：
本发明提供了一种把手组件及包括其的吻合器，将把手分为第一把手构件和第二把手，通过滑块的位置移动来控制第一把手构件和第二把手的联动状态，并且只有第二把手的旋转是可以击发吻合器的，从而避免了在吻合器未满足击发条件时的误击发，并且在失效状态时，第一把手构件仍然是可以握动，而不会引起壳体的开裂；在滑块和滑槽之间设置压簧，并且压簧的位置通过滑块的第一限位结构和第一把手构件的第二限位结构进行限定，在滑块脱离外力后，可以依据压簧的作用复位。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显。
图1是本发明一实施例的把手组件用于吻合器的结构示意图；
图2～3是本发明第一实施例的把手组件应用于常规吻合器的结构示意图；
图4是本发明第一实施例的把手组件应用于包皮吻合器的结构示意图；
图5是本发明第一实施例的把手组件处于初始状态时的结构示意图；
图6是本发明第一实施例的滑槽的结构示意图；
图7是本发明第一实施例的把手组件处于初始状态时的立体图；
图8是本发明第一实施例的指针和滑块处于初始状态时的结构示意图；
图9～11是本发明第一实施例的把手组件处于失效状态时的结构示意图；
图12是本发明第一实施例的指针移动至第二位置区域时的把手组件的结构示意图；
图13～15是本发明第一实施例的把手组件处于击发状态时的结构示意图；
图16是本发明第二实施例的把手组件处于初始状态的结构示意图；
图17是图16中A处放大图；
图18是本发明第二实施例的把手组件的爆炸图；
图19是本发明第二实施例的把手壳体的立体图；
图20是本发明第二实施例的把手组件处于初始状态时的正视图；
图21和图22是本发明第二实施例的把手组件处于失效状态的结构示意图；
图23和图24是本发明第二实施例的把手组件处于击发状态的结构示意图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本发明将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。在图中相同的附图标记表示相同或类似的结构，因而将省略对它们的重复描述。
为了解决现有技术中的技术问题，本发明提供了一种把手组件，用于吻合器的击发，所述把手组件包括第一把手构件和第二把手，其中，所述第一把手构件上设置有滑槽，所述滑槽包括相互连通的第一段和第二段，所述滑槽中可滑动设置有一滑块，所述滑块的一端设置有第一限位结构，所述滑槽的第二段的端部设置有第二限位结构，所述第一限位结构和第二限位结构之间设置有压簧；所述第二把手的第一端与所述第一把手构件可旋转连接。本发明还提供一种圆管型吻合器，包括所述把手组件。
所述滑块位于所述滑槽的第一段，且所述第一把手构件沿第一方向旋转时，所述滑块与所述第二把手不抵触，所述第二把手不旋转；所述滑块 受外力向所述滑槽的第二段移动，且所述第一把手构件沿第一方向旋转时，所述压簧产生变形，所述滑块与所述第二把手抵触，并推动所述第二把手旋转，且所述滑块脱离外力时，所述压簧的恢复力推动所述滑块复位。
因此，本发明避免了在吻合器未满足击发条件时的误击发，并且在失效状态时，第一把手构件仍然是可以握动，而不会引起壳体的开裂；在滑块和滑槽之间设置压簧，并且压簧的位置通过滑块的第一限位结构和第一把手构件的第二限位结构进行限定，在滑块脱离外力后，可以依据压簧的作用复位。
下面结合附图分别对本发明的两个实施例进行介绍。在图1～15示出了本发明第一实施例的吻合器以及其把手组件的结构，其中，第一把手构件包括第一把手，所述滑槽设置于第一把手的侧壁上。在图16～24示出了本发明第二实施例的吻合器以及其把手组件的结构，其中，第一把手构件包括第一把手以及套设于第一把手外部的把手壳体，第一把手和把手壳体上均设置有滑槽，且第一把手上的第一滑槽和把手壳体上的第二滑槽相连通。
如图1示出了本发明一实施例的吻合器的结构。其中吻合器的远端设置有钉仓组件72和钉砧组件73，近端设置有旋钮71和把手组件，把手组件的外部设置有把手外壳16，通过按动把手组件可以实现吻合器的击发。
图2～5示出了本发明的第一实施例的把手组件位于初始状态的结构，其中为了清楚显示把手组件的结构以及其与其他部分的配合，部分壳体或部分组件已经省略。为了实现上述目的，本发明将把手组件进行分段，分为第一把手构件和第二把手2，第一把手构件具体包括第一把手1，并且只有当第二把手2旋转时才是可以击发吻合器的，第一把手1和第二把手2是可旋转连接的，当第一把手1和第二把手2不联动时，操作者可以按动第一把手1，但是无法带动第二把手2旋转，也就无法击发吻合器，当第一把手1和第二把手2联动时，操作者按动第一把手1，也会带动第二把手2旋转，从而击发吻合器。
为了控制第一把手1和第二把手2的联动状态，在第一把手1上还设置有第一滑槽41和滑块42，第一滑槽41包括相连通的第一段411和第二 段412，第二把手2包括把手抵触部；当滑块42位于第一滑槽41的第一段411，且第一把手1被握持沿第一方向旋转时，滑块42不与把手抵触部抵触，第二把手2位于保险位置，即第一把手1虽然旋转，但不会击发吻合器，处于失效状态。在该实施例中，第一方向为图中示出的逆时针方向，但本发明不限于此。因此，医生握持第一把手1时，可以轻易地使第一把手1旋转，但却不会触发第二把手2，同时因为此时是空击发状态，握持第一把手1的力是非常小的。医生也可以通过此操作体验了解到当前吻合器的状态是处于未击发状态，并且不会造成吻合器的机壳破裂。
当滑块42位于第一滑槽41的第二段412，且第一把手1被握持沿逆时针方向旋转时，滑块42与把手抵触部抵触且驱使第二把手2从保险位置向击发位置旋转。当第二把手2沿逆时针方向旋转时，会同时推动推钉杆75向吻合器的远端移动，进而驱动击发吻合器。
需要注意的是，本发明中所述第一滑槽41的第一段411和第二段412是一个相对概念，而不一定是第一滑槽41的两个端部，即在图5中示出的视角中，第一滑槽41的第一段411位于第二段412右侧即可。滑块42位于第一滑槽41的第一段411和第二段412时握持第一把手1，滑块42与把手抵触部25的关系是不一样的：滑块42位于第一滑槽41的第一段411时，不会与把手抵触部干涉，而位于第一滑槽41的第二段412时，将会与把手抵触部干涉。
在实施例中，滑块42从第一滑槽41的第一段411向第二段412的移动是通过指针5控制的。指针5包括第一端51、定位部53和第二端52，指针5的第一端51设置有突出部54，该突出部54与一拉片6的拉钩位置相对应，指针5的定位部53可旋转固定于吻合器的壳体74。拉片6的尾部固定于一丝杆76上并且会随着丝杆76的移动而移动。旋钮71沿一方向旋转时，丝杆76会向近端移动，带动拉片6向吻合器的近端移动，拉片6的拉钩可以带动指针5的第一端51沿第二方向旋转，以使得指针5的第一端51从第一位置区域向第二位置区域移动时，指针5的第二端52进而推动滑块42从第一滑槽41的第一段411向第一滑槽41的第二段412移动。在该实施例中，第二方向为图中示出的顺时针方向，但本发明不限 于此。其中在吻合器本体上对应于第一位置区域和第二位置区域处设有一视窗，用于观察指针第一端51在使用过程中所处的位置，指针第一端51在第一位置区域时，是处于保险状态的，此时吻合器不能击发，当指针第一端51处于第二位置区域时，吻合器可以击发，为了更直观地给医生以提示，在视窗上对应于可击发的第二位置区域即为绿色区域，现有技术已经有揭示。
为了实现在滑块42脱离指针5的作用力后的复位，在滑块42处还增加了一压簧45。具体地，滑块42的一端设置有第一限位结构43，第一滑槽41的第二段412的端部设置有第二限位结构44，第一限位结构43和第二限位结构44之间设置有压簧45。此处第一滑槽41的第二段412的端部指的是第二段412远离第一段411的一端，即图5中左侧位置。指针5的第一端51从第一位置区域向第二位置区域移动时，指针5的第二端52推动滑块42从第一滑槽41的第一段411向第二段412移动，压缩压簧45产生变形，在外力解除时，指针5的第一端51返回第一位置区域时，指针5的第二端52与滑块42脱离，压簧45的恢复力可以推动滑块42返回至第一滑槽41的第一段411。
进一步地，在该实施例中，第一把手1包括腔体13，腔体13的两个侧壁分别设置有一第一滑槽41，滑块42包括两个滑动部421和滑动部421之间的抵触部422，两个滑动部421分别可滑动设置于一第一滑槽41中。各个第一滑槽41的第二段412的端部分别设置有一第二限位结构44，两个滑动部421的一端分别设置有一第一限位结构43，第一限位结构43和所对应的第二限位结构44之间分别设置有一压簧45。滑动部421沿所述第一滑槽41的延伸方向的长度大于所述抵触部422沿所述第一滑槽41的延伸方向的长度，可以保持滑块42在第一滑槽41中的稳定性。
在该实施例中，第一滑槽41连通第一把手1的腔体13的内部和外部。即从第一把手1的外壁上也是可以看到第一滑槽41和滑块42的结构的。压簧45可以直接在第一把手1外部安装，并且从第一把手1的外部可以看到滑块42当前的位置和压簧45的压缩状态。在该实施例中，第一把手1的外部还套设有把手外壳16，一般是塑料材质，保护第一把手1，并且 采用流畅线条提高操作者使用体验。
在该实施例中，第一限位结构43和第二限位结构44分别为凸柱，压簧45的两端分别套设于第一限位结构43和第二限位结构44上。因此，两个凸柱的尺寸与压簧45的尺寸相适应，以避免压簧45从凸柱上脱离。在实际应用中，压簧45的限位结构的结构不限于此，采用其他结构也属于本发明的保护范围之内。例如，第一限位结构43和第二限位结构44可以分别为挂钩，压簧45的两端分别挂在第一限位结构43和第二限位结构44上，对压簧45进行限位。
在该实施例中，第一把手1和第二把手2中同时穿设有第一销轴31，第一销轴31固定于吻合器的壳体74，且其上套设有第一扭簧32。第一扭簧32的两端分别抵触所述吻合器的壳体74和所述第二把手2，在第二把手2旋转后，如果解除外力，可以将第二把手2复位。
由于第一把手1和第二把手2都是绕第一销轴31旋转的，因此，第一把手1和第二把手2的旋转中心统一，操作者的体验更好。此外，在该实施例中，还设置了第二扭簧34和第二销轴33，用于第一把手1的复位。第二销轴33固定于吻合器的壳体74，第二扭簧34套设于第二销轴33上，且第二扭簧34的两端分别抵触吻合器的壳体74和第一把手1。
此处仅给出了第一把手1和第二把手2的一种连接方式，然而本发明不限于此，两个把手采用其他方式连接也是可以的，均属于本发明的保护范围之内。例如可以将用于第一把手复位的第二扭簧和第二销轴更换为至少一个压簧，压簧连接于第一把手和吻合器的壳体之间，当第一把手旋转时，压缩压簧产生变形，松开第一把手时，压簧恢复使得第一把手复位。进一步地，也可以采用双旋转中心的方式，例如同样设置第一扭簧和第一销轴，以及第二扭簧和第二销轴。第一销轴固定于第二把手，且穿设于第一把手中，第一扭簧套设于第一销轴上，且第一扭簧的两端分别抵触第一把手和第二把手，可以实现第一把手的复位；第二销轴固定于吻合器的壳体且穿设于第二把手中，第二扭簧套设于第二销轴上，且第二扭簧的两端分别抵触第二把手和吻合器的壳体，可以实现第二把手的复位。第一把手和第二把手分别绕第一扭簧和第二扭簧旋转。
本发明不仅可以应用于常规的圆管型吻合器，还可以应用于包皮吻合器。例如图4所示，示出了应用该把手组件的包皮吻合器本体8的结构。包皮吻合器本体8的远端包括钉仓组件81，另外还设置有与钉仓组件81配合的龟头帽组件(图中未示出)。采用包皮吻合器时，第二把手2活动连接到包皮吻合器的一端，第二把手2的第二端与包皮吻合器的推钉部件相配合，当满足可击发条件时，第二把手2会推动推钉部件，实现包皮吻合器的击发。
该实施例的第一滑槽41的结构可以参见图6～8。其中，第一滑槽41的第二段412的高度大于第一段411的高度，第一段411和第二段412之间通过斜面平滑过渡；第二段412的端部内壁设置有一凸柱支撑座413，凸柱支撑座413上设置有第二限位结构44，且凸柱支撑座413的高度大于第二限位结构44的高度。由于第二限位结构44本身的高度被压簧45所限制，如果做得很大则无法与压簧连接，因此，该实施例增加凸柱支撑座413，对第二限位结构44起到更好的支撑作用。
如图9～11示出了该实施例的把手组件位于失效状态时的结构。该状态下，拉片6未拉动指针5，因此指针5的的位置没有变动，滑块42仍然位于第一滑槽41的第一段411，在第一把手1的旋转路径上，滑块42与第二把手2的把手抵触部不发生干涉。要说明的是，初始位置时滑块42在压簧45的作用下位于第一滑槽41第一段411的远离第二段412的尽头即图示的右端位置。当然也可以是由指针5的第二端52来对滑块42的初始位置进行限位。在该实施例中，第一把手1的第一端11为握持部，第二端12包括连接部；第二把手2的第一端21位于连接部的腔体内部，第二端22与推钉杆75抵触。此时，器械处于保险状态。由于第二扭簧34的扭力较击发力要小得多，第一把手1在受到操作者较小的握持力时，即可绕第一销轴31逆时针旋转，第二把手2继续进入第一把手1的腔体内部，即第一把手1和第二把手2处于不联动状态，第二把手2不发生旋转。操作者握紧第一把手1时，可以轻易地使第一把手1旋转，但是却不会带动第二把手2的转动，也就无法完成吻合器的击发。操作者此时也能得到触觉反馈，了解到当前指针5的第一端51未达到第二位置区域，没有击 发。当外力解除时，第一把手1在第二扭簧34的作用下复位。
如图12所示，为该实施例的指针5的第一端51移动至第二位置区域的示意图。该过程中，转动旋钮71使得丝杆76带动拉片6向近端移动，带动指针5的第一端51沿顺时针方向移动，使得指针5的第一端51从第一位置区域进入第二位置区域。因此指针5的第二端52推动滑块42向第一滑槽41的第二段412移动，使得第一限位结构43向第二限位结构44靠近，压缩压簧45变形。此时，在第一把手1的旋转路径上，第二把手2的把手抵触部将会与滑块42干涉。
如图13～15示出了该实施例的把手组件位于击发状态时的结构。在第一把手1被握持逆时针旋转时，滑块42与第二把手2抵触部抵触并且阻挡第二把手2继续进入第一把手1的内部腔体中。由此，第二把手2和第一把手1变成联动状态。第二把手2随第一把手1逆时针旋转，第二把手2的第二端22推动推钉杆75，推钉杆75会进一步推动吻合器的推钉片和环形切刀，对进行手术的组织进行缝合和切割。
从图中可以看出，压簧45在滑块42的移动过程中被逐渐压缩。进一步地，第二把手2上还设置有拉片抵触部23，第二把手2从保险位置向击发位置旋转时，拉片抵触部23会在顶出顶点处顶起拉片6，使拉片6的拉钩与指针5脱离。此时，指针5沿逆时针方向恢复至初始位置。在该实施例中，吻合器的壳体74中与指针5的第一端51对应的位置处设置有一个金属片77，当指针5恢复至初始位置时，会与金属片77撞击，发出声音，提示操作者指针已复位。由于指针5的第一端51返回至第一位置区域，在松开第一把手1后指针5的第二端52与滑块42脱离。然后，在指针5复位后，由于指针5不再对滑块42有作用力，压簧45在恢复原状时的变形力可以推动滑块42重新向第一滑槽41的第一段411滑动，恢复到初始位置。第二把手2也在第一扭簧31的恢复力下恢复至初始位置。第一把手1由于是和第二把手2在滑块的作用下啮合的，因此其首先随着第二把手2复位，同时又在第二扭簧34的作用下复位。
如图16～24示出了本发明第二实施例的吻合器和其中的把手壳体的结构示意图。该实施例与第一实施例的区别在于，第一把手构件包括第一把 手1和把手壳体16，第一把手1上设置有第一滑槽41，把手壳体16上设置有第二滑槽161，且第一把手1上的第一滑槽41和把手壳体16上的第二滑槽161相连通，第二限位结构44设置于第二滑槽161的第二段的端部。
第二滑槽161的第一段对应于第一滑槽41的第一段411，第二滑槽161的第二段对应于第一滑槽41的第二段412，滑块42穿过第一滑槽41后嵌设于第二滑槽161中。第二把手2包括把手抵触部；当滑块42位于第二滑槽161的第一段，且第一把手1被握持沿第一方向旋转时，滑块42不与把手抵触部抵触，第二把手2位于保险位置，即第一把手1虽然旋转，但不会击发吻合器，处于失效状态。因此，医生握持第一把手1和把手壳体16时，可以轻易地使第一把手1和把手壳体16旋转，但却不会触发第二把手2，同时因为此时是空击发状态，握持第一把手1的力是非常小的。医生也可以通过此操作体验了解到当前吻合器的状态是处于未击发状态，并且不会造成吻合器的机壳破裂。
当滑块42位于第二滑槽161的第二段，且第一把手1和把手壳体16沿逆时针方向旋转时，滑块42与把手抵触部抵触且驱使第二把手2从保险位置向击发位置旋转。当第二把手2沿逆时针方向旋转时，会同时推动推钉杆75向吻合器的远端移动，进而驱动击发吻合器。
需要注意的是，本发明中所述第二滑槽161的第一段和第二段也是一个相对概念，而不一定是第二滑槽161的两个端部，即在图17中示出的视角中，第二滑槽161的第一段位于第二段的右侧。滑块42位于第二滑槽161的第一段时，不会与把手抵触部干涉，而位于第二滑槽161的第二段时，将会与把手抵触部干涉。
在该实施例中，滑块42从第二滑槽161的第一段向第二段的移动也可以采用指针5控制。旋钮71沿一方向旋转时，丝杆76会向近端移动，带动拉片6向吻合器的近端移动，拉片6的拉钩可以带动指针5的第一端51沿第二方向旋转，以使得指针5的第一端51从第一位置区域向第二位置区域移动时，指针5的第二端52进而推动滑块42从第二滑槽161的第一段向第二段移动。
在该实施例中，滑块42的一端设置有第一限位结构43，第二滑槽161的第二段的端部设置有第二限位结构44，第一限位结构43和第二限位结构44之间设置有压簧45。此处第二滑槽161的第二段的端部指的是第二段远离第二滑槽161的第一段的一端，即图17中左侧位置。指针5的第一端51从第一位置区域向第二位置区域移动时，指针5的第二端52推动滑块42压缩压簧45产生变形，在外力解除时，指针5的第一端51返回第一位置区域时，压簧45的恢复力可以推动滑块42返回至第二滑槽161的第一段。
进一步地，在该实施例中，第一把手1包括第一腔体13，第一腔体13的两个侧壁分别设置有一第一滑槽41，把手壳体16对应设置有两个第二滑槽161，滑块42包括两个滑动部421和滑动部421之间的抵触部422，两个滑动部421分别可滑动设置于一第二滑槽161中。各个第二滑槽161的第二段的端部分别设置有一第二限位结构44，两个滑动部421的一端分别设置有一第一限位结构43，第一限位结构43和所对应的第二限位结构44之间分别设置有一压簧45。并且，滑动部421沿第二滑槽161的延伸方向的长度大于所述抵触部422沿第二滑槽161的延伸方向的长度，可以保持滑块42在滑槽41中的稳定性。
该实施例通过将压簧45设置在把手壳体16和滑块42之间，从把手壳体16的外部可以直接看到压簧45的工作状态，方便检查，并且在安装和更换时，不需要将把手壳体16拆下即可以进行，使得把手组件乃至吻合器的安装和维护更为经济高效。
把手壳体16的结构以及与吻合器的配合关系具体可参加图18和图19。把手壳体16的近端为握持端，远端与吻合器的壳体74配合。第二滑槽161开设于把手壳体16的远端，并且一直连通至把手壳体16的上端面。此处把手壳体16的上端面即为在图5的视角中把手壳体16的顶端端面。即第二滑槽161为上端开口的槽，压簧45可以直接从把手壳体16的上方安装和移除。而由于两个限位结构的位置限定作用，也不用担心压簧45在正常使用过程中的位置偏移。把手壳体16的远端的一侧与吻合器的壳体74抵触，吻合器的壳体74与把手壳体16的远端的另一侧对应的位置 设置有一把手开口749，以容纳逆时针旋转时的把手壳体16。
在该实施例中，第一限位结构43和第二限位结构44分别为凸柱，压簧45的两端分别套设于第一限位结构43和第二限位结构44上。因此，两个凸柱的尺寸与压簧45的尺寸相适应，以避免压簧45从凸柱上脱离。在实际应用中，压簧45的限位结构的结构不限于此，采用其他结构也属于本发明的保护范围之内。例如，第一限位结构43和第二限位结构44可以分别为挂钩，压簧45的两端分别挂在第一限位结构43和第二限位结构44上，对压簧45进行限位。
如图21和图22示出了该实施例的把手组件位于失效状态时的结构。该状态下，拉片6未拉动指针5，因此指针5的位置没有变动，滑块42仍然位于第二滑槽161的第一段，在第一把手1的旋转路径上，滑块42与第二把手2的把手抵触部不发生干涉。要说明的是，初始位置时滑块42在压簧45的作用下位于第二滑槽161第一段的远离第二段的尽头即图示的右端位置。当然也可以是由指针5的第二端52来对滑块42的初始位置进行限位。此时，器械处于保险状态。由于第二扭簧34的扭力较击发力要小得多，第一把手1在受到操作者较小的握持力时，即可绕第一销轴31逆时针旋转，第二把手2继续进入第一把手1的腔体内部，即第一把手1和第二把手2处于不联动状态，第二把手2不发生旋转。操作者握紧第一把手1时，可以轻易地使第一把手1旋转，但是却不会带动第二把手2的转动，也就无法完成吻合器的击发。操作者此时也能得到触觉反馈，了解到当前指针5的第一端51未达到第二位置区域，没有击发。当外力解除时，第一把手1在第二扭簧34的作用下复位。
如图23和图24示出了该实施例的把手组件位于击发状态时的结构。该过程中，转动旋钮71使得丝杆76带动拉片6向近端移动，带动指针5的第一端51沿顺时针方向移动，使得指针5的第一端51从第一位置区域进入第二位置区域，指针5的第二端52推动滑块42，使其向第二滑槽161的第二段移动至与第一限位结构43和第二限位结构44抵触。在第一把手1逆时针旋转时，滑块42与把手抵触部25抵触并且阻挡第二把手2继续进入第一把手1的内部腔体中。由此，第二把手2和第一把手1变成联动 状态。第二把手2随第一把手1逆时针旋转，第二把手2的第二端22推动推钉杆75，推钉杆75会进一步推动吻合器的推钉片和环形切刀，对进行手术的组织进行缝合和切割。
从图中可以看出，压簧45在滑块42的移动过程中被逐渐压缩。在吻合器击发时，第二把手2上的拉片抵触部23会在顶出顶点处顶起拉片6，使拉片6的拉钩与指针5脱离。此时指针5沿逆时针方向恢复至初始位置。在该实施例中，吻合器的壳体74中与指针5的第一端51对应的位置处设置有一个金属片77，当指针5恢复至初始位置时，会与金属片77撞击，发出声音，提示操作者指针已复位。由于指针5的第一端51返回至第一位置区域，在松开第一把手1后指针5的第二端52与滑块42脱离。然后，在失去指针5的外力后，压簧45在恢复原状时的变形力会推动滑块42重新向第二滑槽161的第一端滑动，恢复到初始位置。第二把手2也在第一扭簧31的恢复力下恢复至初始位置。第一把手1由于是和第二把手2在滑块的作用下啮合的，因此其首先随着第二把手2复位，同时又在第二扭簧34的作用下复位。
本发明实施例还提供一种吻合器，包括所述把手组件。在吻合器未达到可击发状态时，第一把手不会驱动第二把手，也就不会击发吻合器，医生也可以通过操作体验来判断击发状态，只有吻合器达到可击发状态时，第一把手的运动才会带动第二把手的运动，进而击发吻合器。从而在避免吻合器被误击发的基础上，同时避免发生吻合器机壳开裂的情况。该吻合器通过滑块的移动位置来控制第一把手和第二把手的联动状态，在击发完成后，滑块又可以通过压簧的复位作用返回至初始位置。
本发明所提供的把手组件及包括其的吻合器具有下列优点：
本发明提供了一种把手组件及包括其的吻合器，将把手分为第一把手构件和第二把手，通过滑块的位置移动来控制第一把手构件和第二把手的联动状态，并且只有第二把手的旋转是可以击发吻合器的，从而避免了在吻合器未满足击发条件时的误击发，并且在失效状态时，第一把手构件仍然是可以握动，而不会引起壳体的开裂；在滑块和滑槽之间设置压簧，并且压簧的位置通过滑块的第一限位结构和第一把手构件的第二限位结构 进行限定，在滑块脱离外力后，可以依据压簧的作用复位。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (18)

  1. 一种把手组件，用于吻合器的击发，其特征在于，所述把手组件包括：
    第一把手构件，所述第一把手构件上设置有滑槽，所述滑槽包括相互连通的第一段和第二段，所述滑槽中可滑动设置有一滑块，所述滑块的一端设置有第一限位结构，所述滑槽的第二段的端部设置有第二限位结构，所述第一限位结构和第二限位结构之间设置有压簧；
    第二把手，所述第二把手的第一端与所述第一把手构件可旋转连接；
    所述滑块位于所述滑槽的第一段，且所述第一把手构件沿第一方向旋转时，所述滑块与所述第二把手不抵触，所述第二把手不旋转；
    所述滑块受外力向所述滑槽的第二段移动，且所述第一把手构件沿第一方向旋转时，所述压簧产生变形，所述滑块与所述第二把手抵触，并推动所述第二把手旋转，且所述滑块脱离外力时，所述压簧的恢复力推动所述滑块复位。
  2. 根据权利要求1所述的把手组件，其特征在于，还包括可在第一位置区域和第二位置区域之间移动的指针，所述指针从第一位置区域向第二位置区域移动时，推动所述滑块从所述滑槽的第一段移动至第二段。
  3. 根据权利要求1所述的把手组件，其特征在于，所述滑块包括两个滑动部和两个滑动部之间的抵触部；所述第一把手构件包括内部的腔体，所述腔体的两侧侧壁分别开设有一所述滑槽，所述两个滑动部分别设置于两侧的滑槽中；
    各个所述滑槽的第二段的端部分别设置有一所述第二限位结构，所述两个滑动部的一端分别设置有一所述第一限位结构，所述第一限位结构和所对应的第二限位结构之间分别设置有一所述压簧。
  4. 根据权利要求1所述的把手组件，其特征在于，所述第一把手构件包括第一把手，所述滑槽设置于所述第一把手上。
  5. 根据权利要求1所述的把手组件，其特征在于，所述第一把手构件包 括第一把手和把手壳体，所述把手壳体套设于所述第一把手的外部，所述滑槽包括相连通的第一滑槽和第二滑槽，所述第一滑槽和第二滑槽分别包括相对应的第一段和第二段，所述第一滑槽设置于所述第一把手上，所述第二滑槽设置于所述把手壳体上。
  6. 根据权利要求5所述的把手组件，其特征在于，所述滑块的一端嵌设于所述第二滑槽中，所述第二限位结构设置于所述第二滑槽的第二段的端部。
  7. 根据权利要求6所述的把手组件，其特征在于，所述第一把手的两侧分别设置有一所述第一滑槽，所述把手壳体对应设置有两个所述第二滑槽，所述滑块包括两端的两个滑动部和两个滑动部之间的抵触部，各个所述滑动部分别嵌设于所对应的第二滑槽中；
    各个所述第二滑槽的第二段的端部分别设置有一所述第二限位结构，所述两个滑动部的一端分别设置有一所述第一限位结构，所述第一限位结构和所对应的第二限位结构之间分别设置有一所述压簧。
  8. 根据权利要求3或7所述的把手组件，其特征在于，所述滑动部沿所述滑槽的延伸方向的长度大于所述抵触部沿所述滑槽的延伸方向的长度。
  9. 根据权利要求5所述的把手组件，其特征在于，所述把手壳体的远端开设有所述第二滑槽，且所述第二滑槽连通至所述把手壳体的上端面。
  10. 根据权利要求5所述的把手组件，其特征在于，所述把手壳体的远端的第一侧与所述吻合器的壳体抵触，所述吻合器的壳体与所述把手壳体的远端的第二侧对应的位置设置有把手开口，用于容纳沿第一方向旋转时的把手壳体的远端。
  11. 根据权利要求1所述的把手组件，其特征在于，所述第一限位结构和第二限位结构分别为凸柱，所述压簧的两端分别套设于所述第一限位结构和第二限位结构上。
  12. 根据权利要求11所述的把手组件，其特征在于，所述滑槽的第二段的高度大于所述滑槽的第一段的高度，所述第一段和第二段之间平滑过渡；所述第二段的内壁设置有一凸柱支撑座，所述凸柱支撑座上设置有所述第二限位结构，且所述凸柱支撑座的高度大于所述第二限位结构的高度。
  13. 根据权利要求1所述的把手组件，其特征在于，所述第一限位结构和第二限位结构分别为挂钩，所述压簧的两端分别挂在所述第一限位结构和第二限位结构上。
  14. 根据权利要求1所述的把手组件，其特征在于，还包括：
    第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手构件和第二把手中，所述第一销轴固定于所述吻合器的壳体，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述吻合器的壳体和所述第二把手；
    第二扭簧和第二销轴，所述第二销轴固定于所述吻合器的壳体，所述第二扭簧套设于所述第二销轴上，且所述第二扭簧的两端分别抵触所述吻合器的壳体和所述第一把手构件。
  15. 根据权利要求1所述的把手组件，其特征在于，还包括：
    第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手构件和第二把手中，所述第一销轴固定于所述吻合器的壳体，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述吻合器的壳体和所述第二把手；
    压簧，设置于所述第一把手构件和所述吻合器的壳体之间。
  16. 根据权利要求1所述的把手组件，其特征在于，还包括：
    第一扭簧和第一销轴，所述第一销轴穿设于所述第一把手构件中且固定至所述第二把手，所述第一扭簧套设于所述第一销轴上，且所述第一扭簧的两端分别抵触所述第一把手构件和所述第二把手；
    第二扭簧和第二销轴，所述第二销轴穿设于所述第二把手且固定至所述吻合器的壳体，所述第二扭簧套设于所述第二销轴上，且所述第二扭簧的两端分别抵触所述第二把手和所述吻合器的壳体。
  17. 根据权利要求2所述的把手组件，其特征在于，所述指针连接于拉片的远端，所述拉片的近端套设于丝杆，所述丝杆远端设有旋钮，旋转所述旋钮带动所述拉片向吻合器的近端移动，所述拉片带动所述指针从第一位置区域向第二位置区域移动。
  18. 一种吻合器，其特征在于，包括权利要求1至17中任一项所述的把手组件。
PCT/CN2018/120699 2017-12-26 2018-12-12 把手组件及包括其的吻合器 WO2019128721A1 (zh)

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