WO2022001876A1 - 钳口组件及施夹钳 - Google Patents

钳口组件及施夹钳 Download PDF

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Publication number
WO2022001876A1
WO2022001876A1 PCT/CN2021/102407 CN2021102407W WO2022001876A1 WO 2022001876 A1 WO2022001876 A1 WO 2022001876A1 CN 2021102407 W CN2021102407 W CN 2021102407W WO 2022001876 A1 WO2022001876 A1 WO 2022001876A1
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WO
WIPO (PCT)
Prior art keywords
jaw
clamping
assembly
guide
elastic arm
Prior art date
Application number
PCT/CN2021/102407
Other languages
English (en)
French (fr)
Inventor
徐荣华
Original Assignee
苏州英途康医疗科技有限公司
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
Application filed by 苏州英途康医疗科技有限公司 filed Critical 苏州英途康医疗科技有限公司
Publication of WO2022001876A1 publication Critical patent/WO2022001876A1/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
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122—Clamps or clips, e.g. for the umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding

Definitions

  • Embodiments of the present disclosure relate to a jaw assembly and a clamp applier.
  • Embodiments of the present disclosure provide a jaw assembly and a clip applier that can stabilize firing and improve the clipping effect.
  • a jaw assembly comprising: a jaw mechanism including a first jaw and a second jaw disposed oppositely, the first jaw and the second jaw The jaws are moved between an open position and a closed position to clamp a ligature within the jaw mechanism; a connector, one of the connector and the jaw mechanism can be opposed to the connector and the jaw mechanism movement of the other of the jaw mechanisms; and a guided closure mechanism disposed on at least one of the connector and the jaw mechanism, the guided closure mechanism configured to follow the connector and the jaws Movement of at least one of the mechanisms moves the first and second jaws between the open and closed positions.
  • a guide closure mechanism is provided between the connector and the jaw mechanism, the guide closure mechanism includes a guide post provided on one of the connector and the jaw mechanism and a guide post provided on the connector A guide slot on the other side of the jaw member and the jaw mechanism, the guide post is moved between a first position and a second position in the guide slot to cause the first jaw and the second jaw move between the open position and the closed position.
  • the second position of the guide groove is closer to the first jaw and the second jaw than the first position, and the extending direction of the guide groove is set to be directed from the first position to the The second position or from the second position to the first position; the extending direction intersects the opening direction of the jaw assembly.
  • an axis of symmetry is provided between the first jaw and the second jaw, the first jaw and the second jaw are mirror images relative to the axis of symmetry, and the connecting member is configured to be able to Movement relative to the jaw mechanism in a direction parallel to the axis of symmetry.
  • the guide post is provided on the connecting piece and is configured to move with the movement of the connecting piece, and the guide groove is provided on at least one of the first jaw and the second jaw .
  • the guide groove includes an oblique extension
  • the oblique extension has oppositely disposed first and second ends, the first end is away from the front end of the jaw mechanism, and the second end is close to the At the front end of the clamping mechanism, the obliquely extending portion extends from the first end to the second end; the extending direction of the obliquely extending portion has a certain inclination angle relative to the axis of symmetry, and the first A jaw and the second jaw are mirror images relative to the axis of symmetry.
  • the guide groove further includes an escape groove extending from the first end of the obliquely extending portion in a direction away from the symmetry axis.
  • the guide groove further includes a stabilizing groove extending from the second end of the obliquely extending portion in a direction parallel to the axis of symmetry.
  • the guide closing mechanism includes at least two of the guide grooves, the at least two guide grooves are respectively formed on the first jaw and the second jaw, and the at least two guide grooves are opposite to each other It is arranged as a mirror image on the symmetry axis.
  • a disengagement prevention structure is provided between the guide post and the jaw mechanism to prevent the guide post from being detached from the jaw mechanism.
  • the anti-falling structure includes: a hook part provided on the guide post; and a hook surface provided on the jaw mechanism to cooperate with the hook part.
  • the disengagement prevention structure includes: a convex portion protruding outward from the guide post; and a groove provided on a side surface of the jaw mechanism to fit with the convex portion.
  • the guide post is inclined relative to the connecting piece
  • the anti-detachment structure includes: an inclined side wall of the guide post; and an inclined inner wall of the guide groove, the inclined inner wall and the inclined side wall configured to abut against each other.
  • the guiding and closing mechanism includes: a clamping member disposed on one of the connecting member and the jaw mechanism, the clamping member has a accommodating cavity, and the connection member and the clamping member in the jaw mechanism The other penetrates the receiving cavity and is configured to be movable relative to the receiving cavity.
  • an axis of symmetry is provided between the first jaw and the second jaw, and the first jaw and the second jaw are mirror images relative to the axis of symmetry;
  • the clamping member is provided at On the connecting piece, the clamping mechanism is arranged in the accommodating cavity, and the holding piece and the connecting piece can move together in a direction parallel to the axis of symmetry;
  • the holding piece comprises: A pair of clamping parts are arranged opposite to each other along a direction perpendicular to the symmetry axis, and the accommodating cavity is located between the pair of clamping parts.
  • the clamping member further includes an engaging portion, the engaging portion is disposed between the pair of clamping portions, and the engaging portion, the connecting member and the pair of clamping portions are perpendicular to each other. Surrounding the jaw mechanism in the plane of the axis of symmetry.
  • the clamping mechanism further includes a second elastic arm of the first elastic arm, and a connecting portion connecting the first elastic arm and the second elastic arm, the first elastic arm connecting the connecting portion and the connecting portion.
  • the first jaw and the second elastic arm connect the connecting portion and the second jaw.
  • first elastic arm and the second elastic arm there is a movable gap between the first elastic arm and the second elastic arm, and the first elastic arm and the second elastic arm are configured to be movable relative to each other under the action of an external force.
  • the first elastic arm has a first engaging portion that is butted with the first jaw, and the width of the first engaging portion is gradually from the direction of the first elastic arm to the first jaw. widen;
  • the second elastic arm has a second engaging portion that is butted with the second jaw, and the width of the second engaging portion gradually widens from the direction of the second elastic arm to the second jaw .
  • a clamp applier including the jaw assembly described above.
  • the above-mentioned clamp applier further comprises: a working head; a handle assembled on the working head; and a shaft device assembled on the working head, wherein the jaw assembly is assembled on the shaft device, so that the
  • the rod body device comprises: an outer casing assembled with the working head; a rod body assembly arranged in the outer casing; a clamping chamber assembly arranged on the rod body assembly; wherein, the jaw assembly is assembled on the outer casing, on one of the rod body assembly and the cartridge assembly.
  • FIG. 1 is a schematic structural diagram of a jaw assembly and a shaft device according to an embodiment of the disclosure
  • Fig. 2 is an exploded view of the shaft device in Fig. 1;
  • Figure 3 is an enlarged view of the circle A in Figure 1 with the jaw mechanism in the open position;
  • FIG. 4 is a schematic diagram of the jaw mechanism in a closed position according to an embodiment of the disclosure.
  • FIG. 5 is a schematic structural diagram of a clamping mechanism according to an embodiment of the disclosure.
  • FIG. 6 is a partial structural schematic diagram of the clamping mechanism in another direction according to an embodiment of the disclosure.
  • Fig. 7 is the partial structure schematic diagram of the connector in Fig. 3;
  • FIG. 8 is a schematic diagram of a partial structure of the connector in FIG. 3 in another direction;
  • FIG. 9 is a schematic diagram of a working head and a handle of an electric clamp applier according to an embodiment of the disclosure.
  • Fig. 10 is the structural representation of the working head in Fig. 9;
  • Figure 11 is a schematic cross-sectional view of Figure 10
  • FIG. 12 is a schematic structural diagram of another clamping mechanism that can be used in the anti-falling structure according to an embodiment of the disclosure.
  • Fig. 13 is a side view of the connector matched with Fig. 12;
  • FIG. 14 is a schematic cross-sectional view of yet another clamping mechanism that can be used in the anti-dropping structure according to an embodiment of the disclosure.
  • Figure 15 is a side schematic view of the connector matched with Figure 14;
  • 16 is a schematic structural diagram of a clamping mechanism according to an embodiment of the disclosure.
  • 17 is a schematic structural diagram of a connector and a guide closing mechanism according to an embodiment of the disclosure.
  • FIG. 18 is a schematic structural diagram of a jaw assembly according to another embodiment of the present disclosure from a first perspective
  • FIG. 19 is a schematic structural diagram of a jaw assembly according to another embodiment of the present disclosure from a second perspective.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • At least one embodiment of the present disclosure provides a jaw assembly, comprising: a jaw mechanism, the jaw mechanism includes a first jaw and a second jaw disposed oppositely, the first jaw and the second jaw a clamp is moved between an open position and a closed position to clamp a ligature within the jaw mechanism; a connector, one of the connector and the jaw mechanism being opposable relative to the connector and the jaw mechanism another one of the jaw mechanisms moves; and a guided closure mechanism disposed on at least one of the connector and the jaw mechanism, the guided closure mechanism configured to follow the connector and the jaw mechanism Movement of at least one of the first and second jaws moves between the open and closed positions.
  • the connector and the jaw mechanism by arranging a guide closing mechanism on at least one of the connector and the jaw mechanism, the connector and the jaw mechanism can move relative to each other, and at the same time, The first jaw and the second jaw are movable between an open position and a closed position, thereby stabilizing the firing of the clip appliers and improving the clamping effect of the ligation clip.
  • the guide closing mechanism refers to a device or component that guides the connecting member and the jaw mechanism to move relative to each other, so that the front end of the jaw assembly (ie the first jaw and second jaw) open or close.
  • the clip applier is used to fix the ligation clip on the blood vessel to block the flow of blood in the blood vessel, and the closure of the ligation clip (ie, the clip) is realized by the jaw assembly of the clip applier, and the clip applier can be
  • the manual clamp applier can also be an electric clamp applicator.
  • An embodiment of the present disclosure takes the electric clamp applier as an example for description.
  • the electric clip applier includes a jaw assembly for setting the ligation clip, and the jaw assembly is used to realize the clamping of the ligation clip.
  • the jaw assembly 4 shown in an embodiment of the present disclosure includes a jaw mechanism 41 , a connecting member 42 that can move relative to the jaw mechanism 41 , and a connection member 42 formed on the jaw mechanism 41 and connecting Guide closure mechanism between pieces 42.
  • the ligation clip 10 is arranged in the jaw mechanism 41, and the jaw mechanism 41 has two position states, which are an open position (shown in FIG. 3) and a closed position (shown in FIG. 4). Movement of the closed position may close the ligation clip 10 within the jaw mechanism 41 into a clip.
  • the jaw mechanism 41 realizes the movement from the open position to the closed position by guiding the closing mechanism.
  • the clamp applier further includes an outer sleeve, a cartridge assembly, and a rod assembly.
  • the jaw mechanism 41 may be mounted on the outer sleeve or on the cartridge assembly or the rod assembly.
  • the jaw mechanism 41 includes a first jaw 411 and a second jaw 412 disposed opposite to each other, and the first jaw 411 and the second jaw 412 move between an open position and a closed position so that the jaws are located in the jaws.
  • the ligation clip 10 in the mechanism 41 is a clip.
  • an axis of symmetry X (the axis of symmetry X being an imaginary axis) is provided between the first jaw 411 and the second jaw 412 .
  • the first jaw 411 and the second jaw 412 have the same structure and are mirrored with respect to the symmetry axis.
  • the first jaw 411 is taken as an example for detailed description below.
  • the first jaw 411 includes a clamping portion 4111 and an extension portion 4112 extending forward from the clamping portion 4111.
  • the end of the clamping portion 4111 away from the extension portion 4112 is named the end (not numbered) of the first jaw 411
  • the end of the extension portion 4112 away from the clamping portion 4111 is named as the front end 4113
  • the front end 4113 is the front end 4113 of the clamping mechanism 41 .
  • a clamping groove 4114 for clamping the ligation clip 10 is formed in the inner end surface (not numbered) of the clamping part 4111 , and the clamping groove 4114 extends from the end of the clamping part 4111 to the extension part 4112 and is close to the front end of the extension part 4112 4113, but not through the front end 4113 of the extension 4112.
  • the first jaw 411 and the second jaw 412 may be separate structures, for example, connected by a hinged structure, or may be an integral structure. In this embodiment, the first jaw 411 and the second jaw 412 adopt an integrated structure.
  • the clamping mechanism 41 further includes a first elastic arm 413 and a second elastic arm 414 disposed opposite to each other, and a connecting portion 415 connecting the first elastic arm 413 and the second elastic arm 414 .
  • the first elastic arm 413 connects the connecting portion 415 and the first jaw 411
  • the second elastic arm 414 connects the connecting portion 415 and the second jaw 412 . That is, the connecting portion 415 is located on the side of the first elastic arm 413 away from the first jaw 411
  • the connecting portion 415 is located on the side of the second elastic arm 414 away from the second jaw 412 .
  • first elastic arm and the second elastic arm There is a movable gap between the first elastic arm and the second elastic arm, and the first elastic arm and the second elastic arm are configured to be movable relative to each other under the action of an external force.
  • first elastic arm 413 and the second elastic arm 414 are arranged in parallel in a natural state (ie, when no external force is applied), with a movable gap therebetween. The two can move relative to each other under the action of external force, and after the removal of the external force, they move in opposite directions under the action of their elastic force and return to a relatively parallel state.
  • the first elastic arm 413 and the second elastic arm 414 have the same structure and are arranged in a mirror image with respect to the symmetry axis X.
  • the first elastic arm 413 is taken as an example to describe the structure of the elastic arm below.
  • the length direction of the first elastic arm 413 is parallel to the axis of symmetry X, for example, it is in the shape of a straight line.
  • the thickness of the first elastic arm 413 is smaller than the thickness of the first jaw 411 to which it is connected.
  • the first elastic arm 413 has a first engaging portion 4131 that is butted with the first jaw 411 , and the width of the first engaging portion 4131 gradually widens from the direction of the first elastic arm 413 to the first jaw 411 .
  • the second elastic arm 414 has a second engaging portion (not numbered) that is butted with the second jaw 412, and the width of the second engaging portion is from the second elastic arm to the first engaging portion. The direction of the two jaws gradually widens.
  • the first engaging portion 4131 has an arc-shaped surface 4132 extending toward the outside. It should be noted that the arc-shaped surface 4132 of the first elastic arm 413 and the arc-shaped surface (not numbered) of the second elastic arm 414 are disposed opposite to each other, By arranging the first connecting portion 4131, the stress can be reduced and the firing force can be reduced.
  • an undercut design ie, an undercut groove is formed
  • the connecting portion 415 has a flat portion for connecting with the rod body assembly and a flat connecting portion 4151 formed on the flat portion. Both the first elastic arm 413 and the second elastic arm 414 are connected with the flat connecting portion 4151.
  • An undercut 4152 is formed between the portion 4131 and the first elastic arm 413 , and an undercut 4152 is also formed between the first connecting portion 4131 and the second elastic arm 414 .
  • the connector and the jaw mechanism are movable relative to each other.
  • the connecting piece is set to be fixed and the clamping mechanism is set to be movable; or, the clamping mechanism is set to be fixed and the connecting piece is set to be movable.
  • the connecting member 42 moves along the axis of symmetry X, for example, in this embodiment, the connecting member 42 is mounted on the rod assembly, and is driven by the rod assembly to move relative to the clamping mechanism 41 along the axis of symmetry X.
  • the connecting member 42 is an arc-shaped sheet body.
  • the connecting member 42 may also be disposed on the outer sleeve, and the outer sleeve drives the connecting member 42 to move along the axis of symmetry X relative to the clamping mechanism 41 .
  • the connecting member 42 can be set as a fixed member, and the clamping mechanism 41 can be moved relative to the connecting member 42 along the axis of symmetry X.
  • the guide closing mechanism includes a guide post 43 provided on one of the connecting piece 42 and the jaw mechanism 41 and a guide groove 44 provided on the other of the connecting piece 42 and the jaw mechanism 41 .
  • the guide post 43 moves within the guide slot 44, eg, the guide slot 44 has a first position corresponding to the open position and a second position corresponding to the closed position, and the guide post 43 moves between the first position and the second position to cause the first position
  • the jaw 411 and the second jaw 412 move between an open position and a closed position.
  • the jaw mechanism is in the open position, and at this time, the position of the guide post is the first position of the guide groove 44 .
  • FIG. 3 the jaw mechanism is in the open position, and at this time, the position of the guide post is the first position of the guide groove 44 .
  • the clamping mechanism is in the closed position, and at this time, the position of the guide post is the second position of the guide groove 44 . 3 and 4 , the second position of the guide groove is closer to the first jaw 411 and the second jaw 412 than the first position.
  • the guide post 43 is formed on the connecting member 42 and can move with the movement of the connecting member 42 .
  • the connecting piece 42 and the guide post 43 are integrally formed.
  • the guide groove 44 is provided on the jaw mechanism 41 .
  • the first jaw 411 and the second jaw 412 approach or move away from each other in a certain direction, and at this time, the direction is set as the opening direction of the jaw assembly 4 .
  • the extending direction of the guide groove 44 and the opening direction of the jaw assembly cross each other.
  • the extending direction of the guide groove 44 is substantially parallel to the axis of symmetry X
  • the opening direction of the jaw assembly is substantially perpendicular to the axis of symmetry X, so that the extending direction of the guide groove 44 is substantially perpendicular to the opening of the jaw assembly 4 direction.
  • the shape of the guide groove 44 includes, but is not limited to, a straight line, a broken line, or a curved line.
  • the shape of the guide groove 44 is a zigzag shape.
  • the guide grooves 44 are formed on the upper end surface of the first jaw 411 and the upper end surface of the second jaw 412 .
  • the first jaw 411 and the second jaw 412 are coplanar, and the depth direction of the guide groove 44 is perpendicular to the coplanar where the first jaw 411 and the second jaw 412 are located.
  • the first jaw 411 and the second jaw 412 include inner sides facing each other and outer sides facing away from each other.
  • the two guide grooves 44 may also be opened in the first jaw. 411 .
  • the outer surface of the second jaw 412 may also be opened in the first jaw. 411 .
  • the outer surface of the second jaw 412 may also be opened in the first jaw. 411 .
  • the outer surface of the second jaw 412 may also be opened in the first jaw. 411
  • the guide groove 44 may be provided on the connecting member 42 , and the corresponding guide post 43 may be provided on the clamping mechanism 41 .
  • the volume of the guide post 43 can be reduced, thereby reducing the volume of the entire jaw mechanism 41, which can be beneficial to The miniaturization of the clip applier is therefore preferable.
  • only one guide groove may be provided.
  • the guide groove 44 may be provided on only one of the first jaw 411 and the second jaw 412 .
  • the firing force for firing the ligation clip can be reduced, and the fatigue damage of the first jaw 411 and the second jaw 412 can be reduced, which is therefore preferred.
  • each guide groove 44 is substantially the same as the out-clamping direction of the ligating clip 10 (the out-clamping direction of the ligating clip 10 is the same as the symmetry axis X of the jaw mechanism 41 ).
  • the guide slot 44 includes an oblique extension 441 that causes the first jaw 411 and the second jaw 412 to move between an open position and a closed position, the oblique extension 441 having oppositely disposed first ends 4411 and second ends 4412 , the first end 4411 is away from the front end 4113 of the clamping mechanism 41 , and the second end 4412 is close to the front end 4113 of the clamping mechanism 41 .
  • the extending direction of the obliquely extending portion has a certain inclination angle with respect to the axis of symmetry.
  • the obliquely extending portion extends from the first end to the second end in a direction away from the other guide groove of the two guide grooves.
  • the obliquely extending portion 441 on the second jaw 412 extends from the first end 4411 to the second end 4412 in a direction away from the guide groove on the first jaw 411 . That is to say, the obliquely extending portion 441 of the second jaw 412 is gradually shifted outward from the first end 4411 to the second end 4412 along the opening direction of the second jaw 412 (eg, the direction a2 shown in the figure).
  • the oblique extension (not shown) of the first jaw 411 is gradually offset outwardly from the first end toward the second end along the opening direction of the first jaw (eg, the a1 direction shown in the figure).
  • the guide groove is provided with an oblique extension, which is beneficial to guide the guide column to the stable groove, so that the guide column is not easy to slide.
  • the guide groove further includes an escape groove extending from the first end in a direction away from the other guide groove of the two guide grooves.
  • the guide groove 44 of the first jaw 411 also includes an escape groove 442 that is bent and extended outward from the first end 4411 of the first jaw 4411 toward the opening direction (a1 direction) of the second jaw 412.
  • the first jaw The escape groove (not shown) is formed by bending outward from its first end toward the opening direction (a1 direction) of the first jaw.
  • the orthographic projection of the avoidance groove 442 on the co-plane of the first jaw 411 and the second jaw 412 is perpendicular to the axis of symmetry X, and the extension lines of the two avoidance grooves 442 are coincident.
  • the escape groove 442 By arranging the escape groove 442, the overall volume of the jaw assembly 4 can be made smaller.
  • the jaw mechanism 41 is in the open position, and the guide post 43 is located at the first end 4411. If the diameter of the trocar is smaller than the first end 4411 When the first jaw 411 and the second jaw 412 are in a normal state (ie, in a normal open state), the trocar interferes with the first jaw 411 and the second jaw 412 . After the external force acts on the first jaw 411 and the second jaw 412, the first jaw 411 and the second jaw 412 move relative to each other in the direction of approaching each other. At this time, the guide post 43 moves into the avoidance groove 442. , the jaw assembly 4 passes through the trocar due to its reduced width.
  • the guide groove 44 further includes a stabilizing groove 443 formed from the second end 4412 along the longitudinal direction of the clamping mechanism 41 , the stabilizing groove 443 is parallel to the symmetry axis X, and the clamping effect can be further ensured by the stabilizing groove 443 .
  • the guide post moves into the stabilization slot, since the extension direction of the stabilization slot 443 and the extension direction of the oblique extension part have a certain angle, it is beneficial for the guide post to be stably seated in the X direction.
  • the guide groove 44 is arranged on the clamping portion 4111, for example, in order to further improve the clamping effect, the clamping groove 4114 needs to be as close as possible to the front end 4113 of the clamping groove 4114, that is, the clamping groove 4114 needs to be as close as possible to the extension portion 4112.
  • a space is formed between the guide post 43 and the jaw mechanism 41 to prevent the guide post 43 from being separated from the jaws.
  • the mechanism 41 is a disengagement prevention structure in which the mechanism 41 disengages in the thickness direction of the jaw mechanism. That is, the guide post 43 is prevented from being separated from the guide groove 44 on the jaw mechanism 41 .
  • the disengagement prevention mechanism includes a hook portion 432 formed on the guide post 43 and a hooking surface 4116 formed on the jaw mechanism 41 to cooperate with the hook portion 432 .
  • the connecting pieces 42 are disposed on both sides of the clamping mechanism 41 opposite to the hooks 432 .
  • a moving groove 4115 is concavely formed on the bottom surface of the first jaw 411 , and the guide groove 44 is located on the opposite side of the first jaw 4115 to the moving groove 4115 .
  • the moving groove 4115 is located on the first side of the first jaw 411 (eg, the upper side in FIG. 5 ), and the guide groove 44 is located on the second side of the first jaw (eg, the lower side in FIG. 5 ).
  • the hooking surface 4116 is the upper surface of the moving slot 4115 , and the hook portion 432 is fastened on the hooking surface 4116 of the moving slot 4115 .
  • the bottom surface of the second jaw 412 is also concavely formed with a moving groove 4115 and a hooking surface 4116 , and the hook portion 432 matched with the second jaw 412 is fastened on the hooking surface 4116 of the second jaw 412 .
  • the guide post 43 and the guide groove 44 are prevented from being separated by the cooperation between the hook portion 432 and the hook surface 4116 .
  • the overall thickness of the jaw assembly can be reduced.
  • the hook portion 432 is integrally formed with the guide post 43 and the connecting piece 42 (eg, injection molding). Of course, in other embodiments, the hook portion 432 can be fixed or installed on on the guide post 43. It should be noted that, in this embodiment, since the guide post 43 and the hook portion 432 are integrally formed, in order to facilitate the assembly of the guide post 43 , the width and length of the hook portion 432 are not greater than the width and length of the escape groove 442 , so that the guide post 43 can be installed into the guide groove 44 through the avoidance groove.
  • the hook portion 432 is, for example, an L-shape, and the hook portion 432 may also have other structures, such as a circular or a square structure.
  • the anti-detachment structure may also include a convex portion 423 ′ formed to protrude outward from the guide post 43 ′ and formed on the side surface (not numbered) of the clamping mechanism to A groove 4116' that cooperates with the convex portion 423'.
  • the convex portion 423' has an arc or square or special-shaped structure.
  • the guide post is inclined relative to the connecting piece, and the anti-falling structure includes: an inclined side wall of the guide post; and an inclined inner wall of the guide groove, the inclined inner wall and the inclined side wall configured to abut against each other.
  • the guide post 43 ′′ is set to be inclined, that is, the guide post 43 ′′ is not perpendicular to the connecting piece 42 ′′, and the side wall of the guide post 43 ′′ is inclined at this time.
  • an inclined surface 4116" abutting against the guide post 43" is formed in the guide groove 44", and the inclined surface 4116" and the inclined side wall (not numbered) of the guide post 43" form a disengagement prevention structure.
  • the guide column is directly set as a dovetail block, the guide groove is set as a dovetail groove, and the dovetail block and the dovetail groove form an anti-dropping structure.
  • the electric clamp usually includes a working head 2 , a handle 1 installed on the working head 2 for holding, and a shaft device 3 assembled on the working head 2 .
  • the jaw assembly 4 is provided on the shaft device 3 .
  • the handle 1, the working head 2 and the shaft device 3 are detachably connected, so that when any one of them is damaged, it can be replaced directly without the need to replace the entire surgical instrument, which saves medical costs and reduces the patient's economy. pressure.
  • the working head 2 and the handle 1, and the working head 2 and the shaft device 3 can be detachably connected by means of clamping, screw fitting, plugging, etc.
  • the working head 2 and the handle 1 are clamped and fixed. Connection, the working head 2 and the shaft device 3 are connected by plugging.
  • the working head 2 includes a casing 21 , a driving rod 23 disposed in the casing 21 , a first communication component, and a rotating head 22 mounted on the casing 21 .
  • the casing 21 has an opening 211 for connecting the first communication component (not shown) with the outside.
  • the opening 211 is located in the rotary head 22 , and a first guide member 222 is formed in the rotary head 22 .
  • the handle 1 is an electric handle 1, which includes a handle housing 13 with a receiving cavity, a motor 14 arranged in the receiving cavity, a control circuit electrically connected to the motor 14, and a third control circuit arranged on the handle housing 13 and coupled to the control circuit.
  • a switch 11 and a second switch 12 arranged on the handle housing 13 and coupled to the control circuit.
  • the working head 2 is further provided with a transmission mechanism 25 for converting the radial force of the motor 14 into an axial force, and the driving rod 23 is connected with the transmission mechanism 25 .
  • the first switch 11 is used to drive the driving rod 23 to move forward
  • the second switch 12 is used to drive the driving rod 23 to move backward.
  • the driving component, the control circuit, the first switch 11 and the second switch 12 can also be arranged in the working part, which is determined according to the actual situation, and is not limited herein.
  • the shaft device 3 includes a docking part 32 that is matched with the working head 2 , an outer sleeve 31 fixed on the docking part 32 , and a rod body assembly arranged in the docking part 32 and the outer sleeve 31 and the setting Cartridge assembly on rod assembly.
  • the outer sleeve 31 is fixed on the docking part 32 , and after the docking part 32 is fixed on the working head 2 , the outer sleeve 31 will not move relative to the working head 2 in the axial direction.
  • a plurality of ligation clips (not numbered) are arranged in the clip box assembly, and the clips are realized through the rod body assembly.
  • the docking portion 32 includes a docking housing 321 for inserting into the rotating head 22 and a second communication component disposed at the front end of the docking housing 321 for plugging with the first communication component 322.
  • a second guide member 323 is formed on the docking housing 321 to cooperate with the first guide member 222 to adjust the docking position of the second communication component 321 and the first communication component.
  • the first communication component and the second communication component 322 are difficult to be docked, wherein the second communication component 322 includes a communication housing 3221 installed on the docking housing 321 and a communication housing 3221 disposed in the communication housing 3221
  • the electrical terminal 3222, the communication housing 3221 is formed with a rectangular opening 3225 for exposing the electrical terminal 3222, and the first communication component includes a mating interface with the rectangular opening 3225, and the docking interface and the rectangular opening 3225 need to be completely aligned when docking . Therefore, the design of the first guide member 222 and the second guide member 323 is particularly important, so as to achieve quick, convenient and efficient effects. Please refer to FIG. 11 again.
  • the first guide member 222 includes at least two first bosses 2221 arranged at intervals, and the second guide member 323 at least includes a second boss that engages between the at least two first bosses 2221
  • the platform 3231, the first boss 2221 and the second boss 3231 are arrow-shaped structures. When ready to be plugged in, the arrows of the first boss 2221 and the second boss 3231 are disposed opposite to each other; after the plugging is completed, the arrows of the first boss 2221 and the second boss 3231 are staggered and opposite to each other.
  • the communication housing 3221 has a cylindrical structure, and an annular protrusion 3224 protrudes from the outer cylindrical surface of the communication housing 3221.
  • the communication assembly 321 is rotatable relative to the docking housing 321 .
  • the docking housing 321 also has a cylindrical structure, the docking housing 321 is provided with a second groove 3212 , and the rotating head 22 is provided with a ball 221 engaged with the second groove 3212 .
  • the plugging process of the shaft device 3 and the rotating head 22 is as follows: rotating the communication housing 3221 to make it rotate relative to the docking housing 321 to adjust the position of the second communication component 322, so that the second communication component 322 and the first communication component At the same time, the positions of the second bosses 3231 and the distance between the two first bosses 2221 are roughly corresponding.
  • the position of the shaft device 3 is fine-tuned so that the second boss 3231 is matched with the first boss 2221 until the rectangular opening 3225 is completely abutted with the docking port, at which time the second groove 3212 is engaged with the sphere 221.
  • the rod assembly includes a closing push cylinder 341 disposed in the docking housing 321 , a clamping push cylinder 342 disposed in the closing push cylinder 341 , and sleeved in the closing push cylinder 341 .
  • a first spring 361 is arranged in the clip ejection cylinder 342 , and the clip ejection cylinder 342 passes through the communication housing 3221 and abuts with the drive rod in the working head 2 , so as to push the clip ejection pusher through the transmission assembly in the working head 2
  • the barrel 342 moves in the unclamping direction.
  • a first spring 361 is arranged in the clip ejection cylinder 342 , and an inner step portion (not shown) is arranged in the clip ejection cylinder 342 .
  • One end of the first spring 361 is in contact with the inner step, and the other end is in contact with the push-clamp rod 35 .
  • the long groove 351 extending in the direction, the first pin 362 passes through the long groove 351 .
  • a second spring 353 is sleeved on the clamping push cylinder 342 and the closing push cylinder 341. One end of the second spring 353 is pressed against the outer edge of the clamping push cylinder 342, and the other end extends into the closing push cylinder 341 and the fixing sleeve. Between the cylinders 343 and abutting in the fixed sleeve 343 .
  • the closing push cylinder 341 is also sleeved with a third spring 354. One end of the third spring 354 is pressed against the fixing plate 355, and the other end is pressed against the outer flange 3411 of the closed push cylinder 341.
  • the closed push cylinder 341 The outer flange 3411 is divided into a front sleeve part 3412 and a rear sleeve part 3413 , the second spring 353 is sleeved on the rear sleeve part 3413 , and the third spring 354 is sleeved on the front sleeve part 3412 .
  • the fixing piece 355 is fixed on the front end opening of the docking housing 321 .
  • the third pin 357 cooperates with the long groove 351 and the strip groove 331 to limit the retraction (ie reset) position of the push-clamp rod 35 and the closing rod 33.
  • the closing push cylinder 341 is connected to the closing rod 33 through a second pin 356 which also passes through the long slot 351 .
  • the second pin 356 is disposed closer to the clamping mechanism 41 than the first pin 362 .
  • a clamping groove 3214 for clamping the fixing sleeve 343 is formed in the outer casing 321 .
  • an extension plate 44 is formed at the rear end of the connecting member 42 , and the extending plate 44 is engaged with the closing rod 33 .
  • the connecting member 42 can be directly disposed on the closing rod 33 .
  • the connecting portion 415 of the jaw mechanism 41 is partially superimposed below the closing rod 33 , and the connecting portion 415 and the closing rod 33 are both formed with superimposed comb tooth portions 40 .
  • the cartridge assembly includes a cartridge case 37 , a push plate 38 disposed in the cartridge case 37 , and a cover plate 39 disposed opposite the cartridge case 37 .
  • the push plate 38 and the cover plate 39 are oppositely arranged on the upper and lower sides of the connecting portion 415 and the closing rod 33, that is, the push plate 38 and the cover plate 39 surround a storage space (not shown) for placing the ligation clip 10.
  • the part 415 and the closing rod 33 are partially located in the storage space, and the ligation clip 10 is disposed close to the cover plate 39 relative to the connecting part 415 and the closing rod 33 .
  • the cartridge case 37 is formed with a carding comb portion (not numbered) which is matched with the comb tooth portion 40 .
  • the cover plate 39 is formed with a plurality of backward grooves 391
  • the push plate 38 is formed with barbs 381 matched with the backward grooves 391 .
  • Several ligation clips 10 are arranged in the clip magazine box 37 .
  • Elongated grooves 352 and 371 are formed on the push clamp rod 35 and the clamp box 37, and a protrusion 392 is protruded from the cover plate 39.
  • the protrusion 392 extends into the long grooves 352 and 371, and can The groove 30 moves in the axial direction.
  • the cartridge assembly also includes a push rod 30 extending into the underside of the jaw mechanism 41 to abut the ligation clip 10 in the jaw assembly 4 .
  • an extension arm 331 is formed on the outer sleeve 31.
  • the extension arm 331 extends to the lower part of the clamping part 4111 and further extends toward the extension part 4112.
  • the extension arm 331 is opposite to the connecting piece 42 and is disposed on the clamp Both sides of the mechanism 41 , and the extension arm 331 shields the hook portion 432 .
  • the extension arm 331 and the outer sleeve 31 are provided separately.
  • a connecting piece 42 is provided, and a guide closing mechanism is arranged between the connecting piece 42 and the jaw structure, so that the guide groove 44 of the guide closing mechanism and the guide post 43 cooperate with each other.
  • the first jaw 411 and the second jaw 412 move between an open position and a closed position, thereby stabilizing the firing of the clip appliers and improving the clamping effect of the ligation clip 10 .
  • FIG. 16 is a schematic structural diagram of a jaw mechanism according to an embodiment of the disclosure.
  • FIG. 17 is a schematic structural diagram of a connector and a guide closing mechanism according to an embodiment of the disclosure.
  • FIG. 18 is a schematic structural diagram of a jaw assembly according to another embodiment of the present disclosure from a first perspective.
  • FIG. 19 is a schematic structural diagram of a jaw assembly according to another embodiment of the present disclosure from a second perspective.
  • an embodiment of the present disclosure provides a jaw assembly 9 , which includes a jaw mechanism 91 , a connecting member 92 and a guide closing mechanism.
  • the clamping mechanism 91 can, for example, adopt the same structure as the clamping mechanism 41 in the previous embodiment, which will not be repeated here.
  • the jaw mechanism 91 includes a first jaw 911 and a second jaw 912 which are disposed opposite to each other.
  • the first jaw 911 and the second jaw 912 can be moved between an open position and a closed position under the action of an external force, so that the ligature in the jaw mechanism 94 is clamped therein.
  • one of the connecting member 92 and the jaw mechanism 91 can move relative to the other of the connecting member 92 and the jaw mechanism 91, so that when the two move relative to each other, the A guide closing mechanism provided on either of the two applies an external force to the first jaw 911 and the first jaw 912 so that the first jaw 911 and the first jaw 912 are in an open or closed position.
  • the clamping mechanism 91 can be kept stationary, and the connecting piece 92 can move relative to the clamping mechanism 91; or, the connecting piece 92 can be kept stationary, and the clamping mechanism 91 can be moved relative to the connecting piece 92; Relative movement occurs at the same time, which is not specifically limited in this embodiment of the present disclosure, as long as a relative displacement can occur between the two.
  • the jaw mechanism 91 is kept stationary, and the connecting member 92 is preferably moved relative to the jaw mechanism 91 .
  • the guide closing mechanism includes a clamping member 80
  • the clamping member 80 may be disposed on one of the connecting member 92 and the jaw mechanism 91 .
  • the clamping member 80 is provided on the connecting member 92 .
  • the clamping member 80 is fixedly connected to the connecting member 92 , so that when the connecting member 92 moves relative to the jaw mechanism 91 , the clamping member 80 can move together with the movement of the connecting member 92 .
  • the clamping member 80 is designed to have an accommodating cavity 810 .
  • the clamping member 80 includes a pair of clamping parts 812 , the pair of clamping parts 812 are oppositely disposed along a direction perpendicular to the symmetry axis X, and the accommodating cavity 810 is located at the pair of clamping parts between 812.
  • the jaw mechanism 91 penetrates the accommodating cavity 810 and can slide in the accommodating cavity 810 without hindrance.
  • the cross-sectional shape of the accommodating cavity 810 in a plane perpendicular to the axis of symmetry X may be a closed shape or an unclosed shape, such as a ring shape with an opening, as long as the clamping mechanism 91 can be aligned parallel to the symmetry axis
  • the direction of the axis X only needs to pass through the accommodating cavity, and the embodiment of the present disclosure does not specifically limit the cross-sectional shape of the accommodating cavity.
  • clamping member 80 and the connecting member 92 may be integrally formed, or may be assembled together after being manufactured separately.
  • the process steps can be simplified, so it is preferred.
  • the number of the clamping portions 812 may be one pair, or two pairs or more, and the number may be determined according to actual needs, which is not specifically limited in this embodiment of the present disclosure.
  • the first clamping mechanism 911 and the first clamping mechanism 912 are in the first position shown in the figure. Open location. Then, the connecting member 92 is moved to move toward the front end of the jaw mechanism 91 along the direction parallel to the axis of symmetry X, and at the same time, the clamping member 80 also moves toward the front end of the jaw mechanism 91 along with the connecting member 92 .
  • the width of the accommodating cavity 810 in the direction perpendicular to the symmetry axis X (eg, the Y direction shown in the figure) remains unchanged, with the movement of the clamping member 80, the first jaw 911 and the first jaw 912 are in the Y direction. move close to each other in the direction. Finally, when the clamp 80 is moved to the second position shown in the figure, the first jaw 911 and the first jaw 912 are in the closed position.
  • the movement of the first jaw 911 and the first jaw 912 between the open position and the closed position is achieved through the movement of the guide closing mechanism provided on the connecting piece, thereby improving the clamping effect of the ligation clip.
  • the clamping member 80 may further include an engaging portion 811 , and the engaging portion 811 is disposed between the paired clamping portions 812 .
  • the first jaw 911 and the second jaw 912 may approach each other in the thickness direction Z (for example, as shown in FIG. Dislocation occurs in the direction Z perpendicular to the Y and X directions).
  • the accommodating cavity 810 is defined by the connecting member 92 , the paired clamping portions 812 and the engaging portion 811 , that is, the connecting member 92 , the paired clamping portion 812 and the engaging portion 811 are defined.
  • the holding portion 812 and the engaging portion 811 surround the jaw mechanism 91 in a plane perpendicular to the axis of symmetry, avoiding the possibility that the first jaw 911 and the second jaw 912 may move in the Z direction during the process of approaching each other. Misalignment problem occurs.
  • the engaging portion 811 and the clamping portion 812 may be integrally formed, or they may be separately manufactured and then assembled.
  • the clamping mechanism 91 can be placed in the accommodating cavity 810 first, and then the engaging portion 811 can be assembled in place, which facilitates the assembly or disassembly of the clamping mechanism 91 . Therefore, it is preferable to assemble the engaging portion 811 and the clamping portion 812 separately after manufacturing.
  • the specific shape of the engaging portion 811 is not limited, as long as the engaging portion 811 can define the accommodating cavity 810 together with the connecting member 92 and the pair of clamping portions 812 .
  • the engaging portion 811 is, for example, an H-shaped sheet.
  • the engaging portion 811 may also be in other shapes such as a rectangle or a polygon, which is not limited in this embodiment of the present disclosure.
  • a limiting protrusion 813 may also be provided on the connecting member 92 .
  • the limiting protrusion is integrally formed with the connecting piece 92 .
  • the clamping mechanism 91 may further include a connecting portion 915 and a limiting hole 913 provided on the connecting portion 915 .
  • the limiting protrusion 813 is installed in the limiting hole 913 and can move in the limiting hole 913 .
  • the connecting piece 92 can be further ensured to move between the first position and the second position.
  • the movable range in the direction parallel to the axis of symmetry X avoids damage to parts caused by excessive movement (for example, beyond the movable range) and reduces maintenance costs.
  • the jaw assembly 9 provided in the above embodiments can be applied to the clamp appliers mentioned in the previous embodiments.
  • a clamp applier provided by an embodiment of the present disclosure includes a working head 2 , a handle 1 mounted on the working head 2 for holding, and a clamp mounted on the working head 2 .
  • Shaft device 3 includes: an outer sleeve 31 assembled with the working head 2 ; a shaft assembly disposed in the outer sleeve 31 ; and a clamping cartridge assembly disposed on the shaft assembly.
  • the jaw assembly 9 can be assembled on one of the outer sleeve 31 , the rod assembly and the cartridge assembly.

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Abstract

一种钳口组件及施夹钳。所述钳口组件(4)包括：钳夹机构(41)、连接件(42)和导向闭合机构，所述钳夹机构(41)包括相对设置的第一钳夹(411)和第二钳夹(412)，所述第一钳夹(411)和所述第二钳夹(412)在打开位置和闭合位置之间运动以使位于所述钳夹机构(41)内的结扎夹(10)成夹其中；所述连接件(42)和所述钳夹机构(41)可相对彼此移动；设置在所述连接件(42)与所述钳夹机构(41)的至少之一上的导向闭合机构，所述导向闭合机构配置为随所述连接件(42)与所述钳夹机构(41)的至少之一的移动而移动，使得所述第一钳夹(411)和所述第二钳夹(412)在所述打开位置和所述闭合位置之间运动。上述钳口组件(4)可使施夹钳击发稳定且提高结扎夹(10)的成夹效果。

Description

钳口组件及施夹钳
相关申请的交叉引用
本申请基于并且要求于2020年6月29日递交、名称为“钳口组件及施夹钳”的中国专利申请第号202010602079.0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。
技术领域
本公开实施例涉及一种钳口组件及施夹钳。
背景技术
外科手术过程中为充分暴露手术视野，需要对目标组织周围血管进行结扎，以阻止出血。止血技术已经成为了外科手术基本操作技术的核心之一，人体任何部位的外科操作几乎无一例外地涉及到出血与止血，一般使用施夹钳结扎夹闭合止血。现有技术中的施夹钳在使用时，由于钳夹的闭合通过外套管挤压钳夹的侧面以实现，而外套管位于钳夹的末端，从而导致结扎夹闭时会交叉、扭曲和异形。
发明内容
本公开实施例提供一种可使击发稳定且提高成夹效果的钳口组件和施夹钳。
根据本公开的一方面，提供一种钳口组件，包括：钳夹机构，所述钳夹机构包括相对设置的第一钳夹和第二钳夹，所述第一钳夹和所述第二钳夹在打开位置和闭合位置之间运动以使位于所述钳夹机构内的结扎夹成夹其中；连接件，所述连接件和所述钳夹机构之一可相对所述连接件和所述钳夹机构中的另一个移动；以及设置在所述连接件与所述钳夹机构的至少之一上的导向闭合机构，所述导向闭合机构配置为随所述连接件与所述钳夹机构的至少之一的移动而移动，使得所述第一钳夹和所述第二钳夹在所述打开位置和所述闭合位置之间运动。
例如，导向闭合机构设置在所述连接件与所述钳夹机构之间，所述导向闭合机构包括设置在所述连接件和所述钳夹机构之一上的导向柱及设置在所述连接件和所述钳夹机构另一上的导向槽，所述导向柱在所述导向槽内的第一位置和第二位置之间移动以致使所述第一钳夹和所述第二钳夹在所述打开位置和所述闭合位置之间运动。
例如，所述导向槽的第二位置比所述第一位置更靠近所述第一钳夹和所述第二钳夹，所述导向槽的延伸方向设置为从所述第一位置指向所述第二位置或从第二位置指向第一位置；所述延伸方向与所述钳口组件的打开方向相互交叉。
例如，所述第一钳夹和所述第二钳夹之间设置有对称轴线，所述第一钳夹和所述第二钳夹相对所述对称轴线镜像设置，所述连接件配置为可相对所述钳夹机构沿平行于所述对称轴线的方向移动。
例如，所述导向柱设置在所述连接件上并且配置为随所述连接件的移动而移动，所述导向槽设置在所述第一钳夹和所述第二钳夹中的至少一个上。
例如，所述导向槽包括斜向延伸部，所述斜向延伸部具有相对设置的第一端和第二端，所述第一端远离所述钳夹机构的前端，所述第二端靠近所述钳夹机构的前端，所述斜向延伸部自所述第一端延伸到所述第二端；所述斜向延伸部的延伸方向相对于对称轴线具有一定的倾斜角度，所述第一钳夹和所述第二钳夹相对所述对称轴线镜像设置。
例如，所述导向槽还包括自所述斜向延伸部的第一端朝远离所述对称轴线的方向延伸的避让槽。
例如，所述导向槽还包括自所述斜向延伸部的第二端沿平行于所述对称轴线的方向延伸的稳固槽。
例如，所述导向闭合机构包括至少两个所述导向槽，所述至少两个导向槽分别形成在所述第一钳夹和所述第二钳夹上，并且所述至少两个导向槽相对于所述对称轴线呈镜像设置。
例如，所述导向柱与钳夹机构之间设置有用以防止所述导向柱与所述钳夹机构脱离的防脱结构。
例如，所述防脱结构包括：设置在所述导向柱上的勾部；以及设置在所述钳夹机构上以与所述勾部配合的勾持面。
例如，所述防脱结构包括：自所述导向柱向外突伸的凸部；以及设置在所述钳夹机构的侧表面上以与所述凸部配合的凹槽。
例如，所述导向柱相对于所述连接件倾斜设置，所述防脱结构包括：所述导向柱的倾斜侧壁；和所述导向槽的倾斜内壁，所述倾斜内壁与所述倾斜侧壁配置为相互抵靠。
例如，所述导向闭合机构包括：夹持件，设置在所述连接件与所述钳夹机构之一上，所述夹持件具有容纳腔，所述连接件与所述钳夹机构中的另一个贯穿所述容纳腔并且配置为可相对于所述容纳腔移动。
例如，所述第一钳夹和所述第二钳夹之间设置有对称轴线，所述第一钳夹和所述第二钳夹相对所述对称轴线镜像设置；所述夹持件设置在所述连接件上，所述钳夹机构设置在所述容纳腔中，并且所述夹持件和所述连接件可沿平行于所述对称轴线的方向一起移动；所述夹持件包括：成对的夹持部，所述成对的夹持部沿垂直于所述对称轴线的方向相对设置，所述容纳腔位于所述成对的夹持部之间。
例如，夹持件还包括卡合部，该卡合部设置在所述成对的夹持部之间，并且所述卡合部、所述连接件以及所述成对的夹持部在垂直于所述对称轴线的平面内环绕所述钳夹机构。
例如，所述钳夹机构还包括第一弹性臂的第二弹性臂、以及连接所述第一弹性臂和所述第二弹性臂的连接部，所述第一弹性臂连接所述连接部和所述第一钳夹，所述第二弹性臂连接所述连接部和所述第二钳夹。
例如，所述第一弹性臂和所述第二弹性臂之间具有活动间隙，并且所述第一弹性臂和所述第二弹性臂配置为在外力作用下可相对彼此移动。
例如，所述第一弹性臂具有与所述第一钳夹对接的第一衔接部，所述第一衔接部的宽度为自所述第一弹性臂指向所述第一钳夹的方向上逐渐变宽；
所述第二弹性臂具有与所述第二钳夹对接的第二衔接部，所述第二衔接部的宽度为自所述第二弹性臂指向所述第二钳夹的方向上逐渐变宽。
根据本公开的另一方面，提供一种施夹钳，包括上述的钳口组件。
例如，上述施夹钳还包括：工作头；装配在所述工作头上的手柄；和装配在所述工作头的杆身装置，其中所述钳口组件装配在所述杆身装置上，所述杆身装置包括：与所述工作头装配的外套管；设置在所述外套管内的杆体组件； 设置在杆体组件上的夹仓组件；其中，所述钳口组件装配在所述外套管、所述杆体组件和所述夹仓组件之一上。
附图说明
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为本公开一实施例所示的钳口组件与杆身装置的结构示意图；
图2为图1中杆身装置的分解图；
图3为图1中圆圈A的放大图，钳夹机构处于打开位置；
图4为本公开一实施例的钳夹机构处于闭合位置时的示意图；
图5为本公开一实施例的钳夹机构的结构示意图；
图6为本公开一实施例的钳夹机构于另一方向上的部分结构示意图；
图7为图3中连接件的部分结构示意图；
图8为图3中连接件于另一方向上的部分结构示意图；
图9为本公开一实施例所示的电动施夹钳的工作头和手柄的示意图；
图10为图9中工作头的结构示意图；
图11为图10的剖面示意图；
图12为本公开一实施例的可用于防脱结构中的另一种钳夹机构的结构示意图；
图13为与图12配合的连接件的侧向示意图；
图14为本公开一实施例的可用于防脱结构中的再一种钳夹机构的截面示意图；
图15为与图14配合的连接件的侧向示意图；
图16为本公开一实施例的钳夹机构的结构示意图；
图17为本公开一实施例的连接件和导向闭合机构的结构示意图；
图18为本公开另一实施例的钳口组件在第一视角的结构示意图；
图19为本公开另一实施例的钳口组件在第二视角的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合附图对本公开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一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动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。
在本公开的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本公开的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；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。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
此外，下面所描述的本公开不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
本公开至少一实施例提供一种钳口组件，包括：钳夹机构，所述钳夹机构包括相对设置的第一钳夹和第二钳夹，所述第一钳夹和所述第二钳夹在打开位置和闭合位置之间运动以使位于所述钳夹机构内的结扎夹成夹其中；连接件，所述连接件和所述钳夹机构之一可相对所述连接件和所述钳夹机构中的另一个移动；以及设置在所述连接件与所述钳夹机构的至少之一上的导向闭合机构，所述导向闭合机构配置为随所述连接件与所述钳夹机构的至少之一的移动而移动，使得所述第一钳夹和所述第二钳夹在所述打开位置和所述闭合位置之间运动。
上述本公开实施例提供的钳口组件，通过在所述连接件与所述钳夹机构的至少之一上上设置导向闭合机构，使连接件和所述钳夹机构可相对彼此移 动，同时，第一钳夹和第二钳夹可在打开位置和闭合位置之间运动，从而可使施夹钳击发稳定且提高结扎夹的成夹效果。
本公开实施例中，导向闭合机构是指一种装置或零部件，该装置或零部件引导连接件和所述钳夹机构相对彼此移动，以使钳口组件的前端(即第一钳夹和第二钳夹)打开或闭合。
本公开实施例中，施夹钳用以在结扎夹固定在血管上，以阻断血管内血液的流动，结扎夹闭合(即成夹)由施夹钳的钳口组件实现，施夹钳可以为手动施夹钳也可以为电动施夹钳，本公开一实施例以电动施夹钳为例进行说明。例如，电动施夹钳包括用以设置结扎夹的钳口组件，钳口组件用以实现结扎夹的成夹。
请结合图3和图4并结合图1，本公开一实施例所示的钳口组件4包括钳夹机构41、可相对钳夹机构41移动的连接件42及形成在钳夹机构41和连接件42之间的导向闭合机构。该结扎夹10设置在钳夹机构41内，钳夹机构41具有两个位置状态，为打开位置(图3所示)和闭合位置(图4所示)，通过钳夹机构41在打开位置至闭合位置的运动可使钳夹机构41内的结扎夹10闭合成夹。该钳夹机构41通过导向闭合机构实现由打开位置至闭合位置的移动。
至少一些实施例中，施夹钳还包括外套管、夹仓组件和杆体组件。例如，在示例性的施夹钳结构中，该钳夹机构41可以装配在外套管上或者夹仓组件上或者杆体组件上。
请参见图5，钳夹机构41包括相对设置的第一钳夹411和第二钳夹412，第一钳夹411和第二钳夹412在打开位置和闭合位置之间运动以使位于钳夹机构41内的结扎夹10成夹。例如，第一钳夹411和第二钳夹412之间设置有对称轴线X(该对称轴线X为假想的轴线)。第一钳夹411和第二钳夹412的结构相同，且相对于该对称轴线镜像设置，下面以第一钳夹411为例进行详细说明。
第一钳夹411包括夹持部4111和自夹持部4111向前延伸形成的延伸部4112，夹持部4111中远离延伸部4112的一端命名为第一钳夹411的末端(未标号)，延伸部4112中远离夹持部4111的一端命名为前端4113，该前端4113即为钳夹机构41的前端4113。夹持部4111的内端面(未标号)内形成有用 以夹持结扎夹10的夹持槽4114，该夹持槽4114自夹持部4111的末端延伸至延伸部4112并靠近延伸部4112的前端4113，但不贯穿延伸部4112的前端4113。
该第一钳夹411和第二钳夹412可以为分体结构，例如通过铰接结构连接，也可以为一体式结构。本实施例采用第一钳夹411和第二钳夹412采用一体式结构。
例如，请参见图5，钳夹机构41还包括相对设置的第一弹性臂413和第二弹性臂414、以及连接第一弹性臂413和第二弹性臂414的连接部415。第一弹性臂413连接连接部415和第一钳夹411，第二弹性臂414连接连接部415和第二钳夹412。也就是，连接部415位于第一弹性臂413的远离第一钳夹411的一侧，连接部415位于第二弹性臂414的远离第二钳夹412的一侧。
所述第一弹性臂和所述第二弹性臂之间具有活动间隙，并且所述第一弹性臂和所述第二弹性臂配置为在外力作用下可相对彼此移动。例如，第一弹性臂413和第二弹性臂414在自然状态(即未施加外力时)下平行设置，两者之间具有活动间隙。两者在外力的作用下可相对彼此移动，而在外力撤销后在其弹性力的作用下相互反向移动，回复成相对平行的状态。
第一弹性臂413与第二弹性臂414结构相同，并相对对称轴线X呈镜像设置，下面以第一弹性臂413为例先对弹性臂的结构进行说明。
例如，该第一弹性臂413的长度方向平行于对称轴线X，例如其为直线型长条状。该第一弹性臂413的厚度小于其与连接的第一钳夹411厚度。第一弹性臂413具有与第一钳夹411对接的第一衔接部4131，第一衔接部4131的宽度为自第一弹性臂413指向第一钳夹411的方向逐渐变宽。类似地，所述第二弹性臂414具有与所述第二钳夹412对接的第二衔接部(未标号)，所述第二衔接部的宽度为自所述第二弹性臂指向所述第二钳夹的方向上逐渐变宽。
例如，第一衔接部4131具有朝向外侧延伸的弧形面4132，需要说明的是，第一弹性臂413的弧形面4132、第二弹性臂414的弧形面(未标号)相背设置，通过设置该第一衔接部4131可以减小应力，减小击发力。
本实施例中，为了进一步减小击发力，还可在连接部415上进行了掏料设计(即形成掏料槽)。例如，连接部415具有用以与杆体组件连接的扁平部 和形成在扁平部上的扁平衔接部4151，第一弹性臂413、第二弹性臂414均与扁平衔接部4151连接，该第一衔接部4131与第一弹性臂413之间形成有掏料槽4152，该第一衔接部4131与第二弹性臂414之间也形成有掏料槽4152。
本实施例中，连接件和和钳夹机构可相对彼此移动。例如，连接件设置为固定不动，钳夹机构设置为可移动；或者，钳夹机构设置为固定不动，连接件设置为可移动。
请参见图3和图4，连接件42例如沿对称轴线X移动，在本实施例中，连接件42安装在杆体组件上，通过杆体组件驱动其相对钳夹机构41沿对称轴线X移动。例如，该连接件42为弧形片状体。当然在其他实施例中，该连接件42还可以设置在外套管上，由外套管驱动其相对钳夹机构41沿对称轴线X移动。或者，其他实施例中，可以将连接件42设置为固定件，钳夹机构41为可相对连接件42沿对称轴线X移动。
导向闭合机构包括设置在连接件42和钳夹机构41之一上的导向柱43及设置在连接件42和钳夹机构41另一上的导向槽44。导向柱43在导向槽44内移动，例如，导向槽44具有对应打开位置的第一位置和对应闭合位置的第二位置，导向柱43在第一位置和第二位置之间移动以致使第一钳夹411和第二钳夹412在打开位置和闭合位置之间运动。如图3所示，钳夹机构处于打开位置，此时，导向柱所在的位置为导向槽44的第一位置。如图4所示，钳夹机构处于闭合位置，此时，导向柱所在的位置为导向槽44的第二位置。结合图3和图4，导向槽的第二位置比所述第一位置更靠近第一钳夹411和第二钳夹412。
本实施例中，导向柱43形成在连接件42上，可随所述连接件42的移动而移动。例如，连接件42与导向柱43为一体成型。导向槽44设置在钳夹机构41上。本实施例中，导向槽44例如为两个，分别开设在第一钳夹411上和第二钳夹412上，导向槽44的延伸方向设置为从第一位置指向第二位置或从第二位置指向第一位置。当钳口组件4打开或关闭时，第一钳夹411和第二钳夹412在某一方向上相互靠近或远离，此时，将该方向设定为钳口组件4的打开方向。那么，导向槽44的延伸方向与所述钳口组件的打开方向相互交叉。例如，如图3所示，导向槽44的延伸方向大致平行于对称轴线X，钳口组件的打开方向大致垂直于对称轴线X，由此导向槽44的延伸方向大致垂直 钳口组件4的打开方向。
例如，导向槽44的形状包括但不限于直线形、折线形或曲线。在本实施例中，导向槽44的形状为折线形。导向槽44开设在第一钳夹411的上端面和第二钳夹412的上端面。例如，第一钳夹411与第二钳夹412设置为共平面，导向槽44的深度方向垂直第一钳夹411与第二钳夹412所在的共平面。如图5所示，第一钳夹411、第二钳夹412包括彼此相对的内侧面和彼此相背的外侧面，其他实施例中，该两个导向槽44也可以开设在第一钳夹411、第二钳夹412的外侧面上。
本公开实施例中，可以将导向槽44设置在连接件42上，对应的导向柱43设置在钳夹机构41上。然而，当把导向柱42设置在连接件42上并且把导向柱43设置在钳夹机构41上的情况下，可以缩小导向柱43的体积，从而降低整个钳夹机构41的体积，可有利于施夹钳的小型化，因此为优选。
本公开实施例中，可以仅设置一个导向槽。例如，可以仅在第一钳夹411、第二钳夹412中的其中一个上设置导向槽44。然而，当在每个钳夹上设置导向槽44时，可降低击发结扎夹的击发力，减少第一钳夹411、第二钳夹412的疲劳损坏，因此为优选。
请再次参见图5并结合图4，每个导向槽44的延伸方向大致与结扎夹10的出夹方向(该结扎夹10的出夹方向与钳夹机构41的对称轴线X相同)相同。导向槽44包括致使第一钳夹411和第二钳夹412在打开位置和闭合位置之间运动的斜向延伸部441，斜向延伸部441具有相对设置的第一端4411和第二端4412，第一端4411远离钳夹机构41的前端4113，所述第二端4412靠近所述钳夹机构41的前端4113。
在本实施例中，所述斜向延伸部的延伸方向相对于对称轴线具有一定的倾斜角度。例如，所述斜向延伸部朝远离所述两个导向槽的另一个导向槽的方向、自所述第一端延伸到所述第二端。例如，第二钳夹412上的斜向延伸部441朝远离第一钳夹411上的导向槽的方向、自所述第一端4411延伸到所述第二端4412。也就是说，该第二钳夹412的斜向延伸部441自第一端4411朝第二端4412沿第二钳夹412的打开方向(例如图中所示a2方向)向外逐渐偏移。类似地，第一钳夹411的斜向延伸部(未标出)自其第一端朝第二端沿第一钳夹的打开方向(例如图中所示a1方向)向外逐渐偏移。本实施例中， 和直线形导向槽相比，把导向槽设置为具有斜向延伸部，有利于将导向柱引导至稳固槽，使导向柱不容易发生滑动。
在本实施例中，所述导向槽还包括自所述第一端朝远离所述两个导向槽的另一个导向槽的方向延伸的避让槽。例如，该第一钳夹411的导向槽44还包括自其第一端4411朝第二钳夹412的打开方向(a1方向)向外折弯延伸的避让槽442，类似地，第一钳夹的避让槽(未标出)为自其第一端朝第一钳夹的打开方向(a1方向)向外弯折延伸形成。例如，避让槽442在第一钳夹411和第二钳夹412所在的共平面上的正投影垂直对称轴线X，且两个避让槽442的延伸线重合。通过设置该避让槽442，可以使得钳口组件4的整体体积更小。
在手术过程中，当钳口组件4经穿刺器(未图示)进入到人体时，此时，钳夹机构41处于打开位置，导向柱43位于第一端4411，若穿刺器的直径小于第一钳夹411和第二钳夹412正常状态时(即正常打开状态)，穿刺器与第一钳夹411和第二钳夹412形成干涉。由外力作用在第一钳夹411和第二钳夹412上后，第一钳夹411和第二钳夹412朝靠近彼此的方向相对移动，此时导向柱43移动至避让槽442内，此时，钳夹组件4因其宽度减少而穿过穿刺器。而当钳口组件4穿过穿刺器后，穿刺器作用在第一钳夹411和第二钳夹412上的力被撤销，第一钳夹411和第二钳夹412在第一弹性臂413和第二弹性臂414弹力的作用下又朝远离彼此的方向移动，回复至原来的状态位置，导向柱43移动至第一端4411。需要说明的是，当导向柱43移动至避让槽442内后，由于避让槽442垂直对称轴线X，所以，当导向柱43位于避让槽442内时，还可以实现轴线方向的锁定，以防止误操作。
导向槽44还包括自第二端4412沿钳夹机构41的纵长方向形成的稳固槽443，稳固槽443与对称轴线X平行，通过该稳固槽443可以进一步保证成夹效果。当导向柱移动到稳固槽中时，由于稳固槽443的延伸方向与斜向延伸部的延伸方向具有一定角度，有利于导向柱实现在X方向上的稳定就位。
在本实施例中，导向槽44例如布置在夹持部4111上，为了进一步提高成夹效果，夹持槽4114需尽量靠近夹持槽4114的前端4113，即夹持槽4114需尽量靠近延伸部4112。
请结合图7和图8，并结合图6，在本实施例中，为了防止导向柱43与 导向槽44分离，导向柱43与钳夹机构41之间形成有用以防止导向柱43与钳夹机构41在钳夹机构的厚度方向上脱离的防脱结构。也就是，防止导向柱43与钳夹机构41上的导向槽44分离。
例如，防脱机构包括形成在导向柱43上的勾部432和形成在钳夹机构41上的以与勾部432配合的勾持面4116。连接件42与勾部432相对设置在钳夹机构41的两侧。
例如，第一钳夹411底面内凹形成有移动槽4115，导向槽44位于第一钳夹的与移动槽4115的相反侧。例如移动槽4115位于第一钳夹411的第一侧(例如图5的上侧)，导向槽44位于第一钳夹的第二侧(例如图5的下侧)。勾持面4116为移动槽4115的上表面，勾部432扣持在移动槽4115的勾持面4116上。类似地，第二钳夹412的底面也内凹形成有移动槽4115和勾持面4116，与第二钳夹412配合的勾部432扣持在该第二钳夹412的勾持面4116上。通过勾部432与勾持面4116之间的配合以防止导向柱43与导向槽44分离。另外，通过设置移动槽4115并将移动槽4115的上表面设置为勾持面4116，从而可以减小钳口组件的整体厚度。
本实施例中，该勾部432与导向柱43及连接件42之间为一体成型(例如注塑成型)，当然，其他实施方式中，勾部432可以通过粘贴、连接件等方式固定或安装在导向柱43上。需要说明的是，在本实施例中，由于导向柱43与勾部432为一体成型，所以，为了便于导向柱43的装配，该勾部432的宽度及长度不大于避让槽442的宽度和长度，从而可以通过避让槽将导向柱43安装到导向槽44内。
本实施例中，勾部432例如为L形，该勾部432也可以为其他结构，如圆形，方形结构等。
除此之外，请参见图12和图13，防脱结构还可以为包括自导向柱43’向外突伸形成的凸部423’和形成在钳夹机构的侧表面(未标号)上以与凸部423’配合的凹槽4116’。例如，凸部423’为弧形或方形或异形结构。
或者，所述导向柱相对于所述连接件倾斜设置，所述防脱结构包括：所述导向柱的倾斜侧壁；和所述导向槽的倾斜内壁，所述倾斜内壁与所述倾斜侧壁配置为相互抵靠。例如，如见图14和图15，将导向柱43”设置成倾斜，即导向柱43”非垂直于连接件42”，此时导向柱43”的侧壁为倾斜的。对应的，导 向槽44”内形成有与导向柱43”相互抵靠的斜面4116”，该斜面4116”与导向柱43”的倾斜设置的侧壁(未标号)形成防脱结构。又或者，直接将导向柱设置为燕尾块，导向槽设置为燕尾槽，该燕尾块与燕尾槽形成防脱结构。
请结合图9和图4，电动施夹钳通常包括工作头2、安装在工作头2上以供握持的手柄1和装配在工作头2的杆身装置3。钳口组件4设置在杆身装置3上。本实施例中，手柄1、工作头2及杆身装置3三者可拆卸连接设置，使得其中任一个损坏时可直接替换，而无需将外科手术器械整体替换以节约医用成本，减少患者的经济压力。工作头2与手柄1、工作头2与杆身装置3可通过卡固、螺纹配合、插接等方式实现可拆卸连接，在本实施例中，工作头2与手柄1之间通过卡固方式连接，工作头2与杆身装置3通过插接方式连接。
请参见图9至图11，工作头2包括壳体21、设置在壳体21内的驱动杆23、第一通信组件及安装在壳体21上的旋转头22。壳体21上开设由使第一通信组件(未图示)与外部连接的开口211，开口211位于旋转头22内，旋转头22内形成有第一导向件222。
例如，该手柄1为电动手柄1，包括具有收容腔的手柄外壳13、设置在收容腔内的电机14、与电机14电连接的控制电路、设置在手柄外壳13上且耦合至控制电路的第一开关11及第二开关12。再例如，工作头2还设置有用以将电机14的径向力转换为轴向力的传动机构25，驱动杆23与传动机构25连接。其中，第一开关11用于驱动驱动杆23前移，第二开关12用于驱动驱动杆23后退。诚然，驱动组件、控制电路、第一开关11及第二开关12也可设置在工作部，根据实际情况而定，在此不做具体限定。
请结合图1和图4，杆身装置3包括与工作头2配接的对接部32、固定在对接部32上的外套管31、设置在对接部32和外套管31内的杆体组件及设置在杆体组件上的夹仓组件。本实施例中，外套管31固定在对接部32上，在对接部32固定在工作头2上后，该外套管31相对工作头2在轴线方向上不会移动。夹仓组件内设置有多个结扎夹(未标号)，其通过杆体组件实现出夹。
请结合图1、图2及图10，对接部32包括用以插入至旋转头22内的对接壳体321和设置在对接壳体321的前端以与第一通信组件插接的第二通信 组件322。对接壳体321上形成有与第一导向件222配合以调整第二通信组件321与第一通信组件的对接位置的第二导向件323。杆身装置3插入至旋转头22内时，第一导向件222与第二导向件323相互配合以使得第一通信组件与第二通信组件322对接，且驱动杆23与杆体组件连接。
在本实施例中，第一通信组件与第二通信组件322存在不易对接的问题，其中，第二通信组件322包括安装在对接壳体321上的通信壳体3221及设置在通信壳体3221内的电性端子3222，通信壳体3221形成有用以暴露电性端子3222的矩形开口3225，第一通信组件包括与矩形开口3225插接对接口，对接口与矩形开口3225在对接时需要完全对准。因此，第一导向件222与第二导向件323的设计尤为重要，以达到快捷方便且高效的效果。请再结合图11，具体的，第一导向件222包括至少两个间隔设置的第一凸台2221，第二导向件323至少包括卡合至少两个第一凸台2221之间的第二凸台3231，第一凸台2221及第二凸台3231呈箭头状结构。在准备插接时，第一凸台2221与第二凸台3231的箭头相对设置；插接完毕后，第一凸台2221与第二凸台3231的箭头错位且相背设置。
例如，通信壳体3221呈柱形结构，通信壳体3221的外圆柱面上突伸形成环形的突出部3224，对接壳体321上设置有与突出部3224配合的第一凹槽3211，第二通信组件321可相对于对接壳体321转动。相应的，对接壳体321也呈柱形结构，对接壳体321上设置有第二凹槽3212，旋转头22上设置有与第二凹槽3212卡合的球体221。杆身装置3与旋转头22的插接过程为：旋转通信壳体3221使其相较于对接壳体321转动以调整第二通信组件322的位置，使得第二通信组件322与第一通信组件的位置对应的同时，第二凸台3231与两个第一凸台2221之间的间隔位置大致对应。当杆身装置3插入至旋转头22内，微调杆身装置3的位置以使得第二凸台3231与第一凸台2221相配合直至矩形开口3225与对接口完全对接，此时第二凹槽3212与球体221卡合。杆身装置3与旋转头22插接完成后，转动旋转头22调节杆身装置3的角度时，由于第二通信组件322与第一通信组件对接保持不动，则对接壳体321相较于第二通信组件322旋转，以完成杆身装置3的角度调节。
请参见图2，并结合图3和图6，杆体组件包括设置在对接壳体321内的闭合推筒341、设置在闭合推筒341内的出夹推筒342、套设在闭合推筒341 和对接壳体321之间的固定套筒343、以及设置在外套管31内的闭合杆33和推夹杆35。出夹推筒342内设置有第一弹簧361，该出夹推筒342穿过通信壳体3221与工作头2内的驱动杆抵接，以通过工作头2内的传动组件推动该出夹推筒342沿出夹方向移动。出夹推筒342内设置有第一弹簧361，该出夹推筒342内设置有内台阶部(未图示)。第一弹簧361的一端抵接在内台阶部上，另一端抵接推夹杆35，推夹杆35通过第一销钉362与出夹推筒342连接，推夹杆35上形成有沿出夹方向延伸的长槽351，该第一销钉362穿过长槽351。出夹推筒342与闭合推筒341套设有第二弹簧353，该第二弹簧353的一端抵持在出夹推筒342的外边缘上，另一端伸入至闭合推筒341和固定套筒343之间并抵持在固定套筒343内。闭合推筒341上还套设有第三弹簧354，该第三弹簧354的一端抵持在固定片355上，另一端抵持在闭合推筒341的外侧凸缘3411上，该闭合推筒341由外侧凸缘3411分割成前套管部3412和后套管部3413，第二弹簧353套设在后套管部3413上，第三弹簧354套设在前套管部3412上。该固定片355固定在对接壳体321的前端开口上。该对接壳体321的前端开口侧开卡固有第三销钉357，第三销钉357位于固定片355内侧，该第三销钉357穿过推夹杆35的长槽351和闭合杆33的条形槽331，第三销钉357与长槽351、条形槽331的配合以限制推夹杆35、闭合杆33后退(即复位)位置。闭合推筒341通过第二销钉356与闭合杆33连接，该第二销钉356同样穿过长槽351，第二销钉356相较第一销钉362更靠近钳夹机构41设置。外接壳体321内形成有用以卡固固定套筒343的卡固槽3214。在本实施例中，连接件42的后端延伸形成有延伸板44，延伸板44与闭合杆33卡接，在其他实施例中，连接件42可以直接设置在闭合杆33上。钳夹机构41的连接部415部分叠加在闭合杆33的下方，连接部415、闭合杆33上均形成有叠加梳齿部40。
夹仓组件包括夹仓盒37、设置在夹仓盒37内的推夹板38、以及相对夹仓盒37设置的盖板39。该推夹板38和盖板39相对设置在连接部415、闭合杆33的上下两侧，即推夹板38和盖板39围设形成用以放置结扎夹10的存放空间(未图示)，连接部415、闭合杆33部分位于存放空间内，结扎夹10相对连接部415、闭合杆33靠近盖板39设置。该夹仓盒37上形成有与梳齿部40配合的卡梳部(未标号)。盖板39上形成有若干倒退槽391，推夹板38 上形成有与倒退槽391相配合的倒刺381。若干结扎夹10排列设置在夹仓盒37内。推夹杆35、夹仓盒37上均形成有长形槽352、371，盖板39上突伸形成有凸块392，凸块392伸入至长形槽352、371内，可在长形槽30内沿轴线方向移动。该夹仓组件还包括伸入在钳夹机构41下侧以抵持位于钳口组件4内的结扎夹10的抵推杆30。
为了使成夹稳定，外套管31上延伸形成有延伸臂331，该延伸臂331延伸至夹持部4111的下方，并进一步朝延伸部4112延，延伸臂331与连接件42相对设置在钳夹机构41的两侧，且延伸臂331将勾部432遮挡。在本实施例中，延伸臂331与外套管31为分体式设置。
上述本公开实施例的钳口组件4通过设置连接件42，且在连接件42与钳夹结构之间设置导向闭合机构，以通过导向闭合机构的导向槽44与导向柱43之间的配合使第一钳夹411和第二钳夹412在打开位置和闭合位置之间运动，从而可使施夹钳击发稳定且提高结扎夹10的成夹效果。
图16为本公开一实施例的钳夹机构的结构示意图。图17为本公开一实施例的连接件和导向闭合机构的结构示意图。图18为本公开另一实施例的钳口组件在第一视角的结构示意图。图19为本公开另一实施例的钳口组件在第二视角的结构示意图。
如图16至图19所示，本公开一实施例提供一种钳口组件9，包括钳夹机构91、连接件92和导向闭合机构。本实施例中，钳夹机构91例如可以采用与前面实施例中钳夹机构41相同的结构，此处不再赘述。
如图16所示，钳夹机构91包括相对设置的第一钳夹911和第二钳夹912。所述第一钳夹911和所述第二钳夹912可以在外力的作用下，在打开位置和闭合位置之间运动，以使位于所述钳夹机构94内的结扎夹成夹其中。
本公开实施例中，连接件92和所述钳夹机构91之一可相对所述连接件92和所述钳夹机构91中的另一个移动，这样，当二者发生相对移动时，可以利用设置在二者之一上的导向闭合机构给第一钳夹911和第一钳夹912施加外力，从而使第一钳夹911和第一钳夹912处于打开位置或闭合位置。
实际应用中，可以使钳夹机构91保持不动，连接件92相对钳夹机构91移动；或者，使连接件92保持不动，钳夹机构91相对连接件92移动；再 或者，使二者同时发生相对移动，本公开实施例对此不做具体限定，只要二者之间可产生相对位移即可。为了便于控制的第一钳夹911和第一钳夹912的相对位置，本实施例中，使钳夹机构91保持不动，连接件92相对钳夹机构91移动为优选。
本公开实施例中，所述导向闭合机构包括夹持件80，夹持件80可设置在所述连接件92与所述钳夹机构91之一上。例如，如图17所示，夹持件80设置在连接件92上。例如，夹持件80固定连接在连接件92上，这样，当连接件92相对钳夹机构91移动时，夹持件80可随着连接件92的移动而一起移动。
如图17所示，所述夹持件80设计为具有容纳腔810。例如，所述夹持件80包括一对夹持部812，所述一对夹持部812沿垂直于所述对称轴线X的方向相对设置，所述容纳腔810位于所述一对夹持部812之间。所述钳夹机构91贯穿所述容纳腔810并且可以在容纳腔810中无阻碍地滑动。
本实施例中，该容纳腔810在垂直于对称轴线X的平面内的截面形状可以是封闭形状，也可以是不封闭形状，例如具有开口的环形，只要能使钳夹机构91沿平行于对称轴线X的方向贯穿该容纳腔即可，本公开实施例对容纳腔的截面形状不做具体限定。
本实施例中，夹持件80和连接件92可以一体成型，也可以分别制造后组装在一起。当一体成型时，可以简化工艺步骤，因此为优选。
本实施例中，夹持部812的数量可以是一对，也可以是两对或两对以上，其数量可以根据实际需要确定，本公开实施例对此不做具体限定。
结合图18所示，当钳夹机构91安装到夹持件80的容纳腔810中且夹持件80处于图中所示的第一位置时，第一钳夹911和第一钳夹912处于打开位置。然后，移动连接件92，使其沿平行于对称轴线X的方向朝向钳夹机构91的前端移动，与此同时，夹持件80也随着连接件92一起朝向钳夹机构91的前端移动。由于容纳腔810在垂直于对称轴线X的方向(例如图中所示Y方向)上的宽度保持不变，随着夹持件80的移动，第一钳夹911和第一钳夹912在Y方向上相互靠近地移动。最终，当夹持件80移动到图中所示第二位置时，第一钳夹911和第一钳夹912处于闭合位置。由此，通 过设置在连接件上的导向闭合机构的移动，实现了第一钳夹911和第一钳夹912在打开位置和闭合位置之间的运动，从而提高了结扎夹的成夹效果。
例如，如图17所示，夹持件80还可包括卡合部811，该卡合部811设置在成对的夹持部812之间。当夹持件80和连接件92相对钳夹机构91移动时，第一钳夹911和第二钳夹912可能会在相互靠近过程中，在厚度方向Z(例如，如图18所示，厚度方向Z垂直于Y方向和X方向)上发生错位。
因此，通过在夹持件80上设置卡合部811，使容纳腔810由连接件92、成对的夹持部812和卡合部811限定，也就是，使连接件92、成对的夹持部812和卡合部811在垂直于所述对称轴线的平面内环绕在钳夹机构91的周围，避免了第一钳夹911和第二钳夹912在彼此靠近过程中在Z方向上可能发生的错位问题。本实施例中，卡合部811可以与夹持部812一体成型，也可以分别制造后再进行组装。在实际应用中，可以先将钳夹机构91放置在容纳腔810中，再将卡合部811组装就位，这样有利于钳夹机构91的装配或拆卸。因此，将卡合部811与夹持部812分别制造后再进行组装为优选。
本实施例中，对卡合部811的具体形状不做限定，只要卡合部811可以与连接件92、成对的夹持部812共同限定该容纳腔810即可。例如，如图17和18所示，该卡合部811例如为类似H型的片材。在其他实施例中，卡合部811也可以是矩形或多边形等其他形状，本公开实施例对此不做限定。
例如，如图17所示，连接件92上还可设置有限位凸起813。该限位凸起例如与连接件92一体成型。如图16所示，钳夹机构91还可包括连接部915和设置在连接部915上的限位孔913。如图18所示，当将连接件92与钳夹机构91组装在一起时，限位凸起813安装在限位孔913中且可在限位孔913中移动。这样，通过设置相互配合的限位凸起813和限位孔913，能进一步保证连接件92在第一位置和第二位置之间移动，此外，还能确保连接件(以及夹持件)在平行于对称轴线X方向上的可移动范围，避免因移动过量(例如超出可移动范围)而造成的零件损坏，减少维修成本。
上述实施例所提供的钳口组件9可以应用于前面实施例中提到施夹钳中。
例如，参考图1、图2、图9至图11，本公开一实施例提供的施夹钳包括工作头2、安装在工作头2上以供握持的手柄1和装配在工作头2的杆身装置3。例如，所述杆身装置3包括：与所述工作头2装配的外套管31；设置 在所述外套管31内的杆体组件；设置在杆体组件上的夹仓组件。所述钳口组件9可装配在所述外套管31、所述杆体组件和所述夹仓组件之一上。
本实施例中，有关施夹钳的具体结构和装配方式可参考前面实施例中的描述，此处不再赘述。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本公开的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本公开构思的前提下，还可以做出若干变形和改进，这些都属于本公开的保护范围。因此，本公开专利的保护范围应以所附权利要求为准。

Claims (21)

  1. 一种钳口组件，包括：
    钳夹机构，所述钳夹机构包括相对设置的第一钳夹和第二钳夹，所述第一钳夹和所述第二钳夹在打开位置和闭合位置之间运动以使位于所述钳夹机构内的结扎夹成夹其中；
    连接件，所述连接件和所述钳夹机构之一可相对所述连接件和所述钳夹机构中的另一个移动；以及
    设置在所述连接件与所述钳夹机构的至少之一上的导向闭合机构，所述导向闭合机构配置为随所述连接件与所述钳夹机构的至少之一的移动而移动，使得所述第一钳夹和所述第二钳夹在所述打开位置和所述闭合位置之间运动。
  2. 如权利要求1所述的钳口组件，其中，
    所述导向闭合机构设置在所述连接件与所述钳夹机构之间，所述导向闭合机构包括设置在所述连接件和所述钳夹机构之一上的导向柱及设置在所述连接件和所述钳夹机构另一上的导向槽，所述导向柱在所述导向槽内的第一位置和第二位置之间移动以致使所述第一钳夹和所述第二钳夹在所述打开位置和所述闭合位置之间运动。
  3. 如权利要求2所述的钳口组件，其中，
    所述导向槽的第二位置比所述第一位置更靠近所述第一钳夹和所述第二钳夹，所述导向槽的延伸方向设置为从所述第一位置指向所述第二位置或从第二位置指向第一位置；
    所述延伸方向与所述钳口组件的打开方向相互交叉。
  4. 如权利要求2或3所述的钳口组件，其中，所述第一钳夹和所述第二钳夹之间设置有对称轴线，所述第一钳夹和所述第二钳夹相对所述对称轴线镜像设置，所述连接件配置为可相对所述钳夹机构沿平行于所述对称轴线的方向移动。
  5. 如权利要求4所述的钳口组件，其中，
    所述导向柱设置在所述连接件上并且配置为随所述连接件的移动而移动，所述导向槽设置在所述第一钳夹和所述第二钳夹中的至少一个上。
  6. 如权利要求2至5任一项所述的钳口组件，其中，
    所述导向槽包括斜向延伸部，所述斜向延伸部具有相对设置的第一端和第二端，所述第一端远离所述钳夹机构的前端，所述第二端靠近所述钳夹机构的前端，所述斜向延伸部自所述第一端延伸到所述第二端；
    所述斜向延伸部的延伸方向相对于对称轴线具有一定的倾斜角度，所述第一钳夹和所述第二钳夹相对所述对称轴线镜像设置。
  7. 如权利要求6所述的钳口组件，其中，所述导向槽还包括自所述斜向延伸部的第一端朝远离所述对称轴线的方向延伸的避让槽。
  8. 如权利要求6或7所述的钳口组件，其中，所述导向槽还包括自所述斜向延伸部的第二端沿平行于所述对称轴线的方向延伸的稳固槽。
  9. 如权利要求6至8任一项所述的钳口组件，其中，所述导向闭合机构包括至少两个所述导向槽，所述至少两个导向槽分别形成在所述第一钳夹和所述第二钳夹上，并且所述至少两个导向槽相对于所述对称轴线呈镜像设置。
  10. 如权利要求2至9任一项所述的钳口组件，其中，所述导向柱与钳夹机构之间设置有用以防止所述导向柱与所述钳夹机构脱离的防脱结构。
  11. 如权利要求10所述的钳口组件，其中，所述防脱结构包括：
    设置在所述导向柱上的勾部；以及
    设置在所述钳夹机构上以与所述勾部配合的勾持面。
  12. 如权利要求10所述的钳口组件，其中，所述防脱结构包括：
    自所述导向柱向外突伸的凸部；以及
    设置在所述钳夹机构的侧表面上以与所述凸部配合的凹槽。
  13. 如权利要求10所述的钳口组件，其中，所述导向柱相对于所述连接件倾斜设置，所述防脱结构包括：
    所述导向柱的倾斜侧壁；和
    所述导向槽的倾斜内壁，所述倾斜内壁与所述倾斜侧壁配置为相互抵靠。
  14. 如权利要求1所述的钳口组件，其中，所述导向闭合机构包括：
    夹持件，设置在所述连接件与所述钳夹机构之一上，所述夹持件具有一容纳腔，所述连接件与所述钳夹机构中的另一个贯穿所述容纳腔并且配置为可相对于所述容纳腔移动。
  15. 如权利要求14所述的钳口组件，其中，
    所述第一钳夹和所述第二钳夹之间设置有对称轴线，所述第一钳夹和所 述第二钳夹相对所述对称轴线镜像设置；
    所述夹持件设置在所述连接件上，所述钳夹机构设置在所述容纳腔中，并且所述夹持件和所述连接件可沿平行于所述对称轴线的方向一起移动；
    所述夹持件包括：成对的夹持部，所述成对的夹持部沿垂直于所述对称轴线的方向相对设置，所述容纳腔位于所述成对的夹持部之间。
  16. 如权利要求15所述的钳口组件，其中，夹持件还包括卡合部，该卡合部设置在所述成对的夹持部之间，并且所述卡合部、所述连接件以及所述成对的夹持部在垂直于所述对称轴线的平面内环绕所述钳夹机构。
  17. 如权利要求1至16任一项所述的钳口组件，其中，所述钳夹机构还包括第一弹性臂的第二弹性臂、以及连接所述第一弹性臂和所述第二弹性臂的连接部，所述第一弹性臂连接所述连接部和所述第一钳夹，所述第二弹性臂连接所述连接部和所述第二钳夹。
  18. 如权利要求17所述的钳口组件，其中，所述第一弹性臂和所述第二弹性臂之间具有活动间隙，并且所述第一弹性臂和所述第二弹性臂配置为在外力作用下可相对彼此移动。
  19. 如权利要求17或18所述的钳口组件，其中，
    所述第一弹性臂具有与所述第一钳夹对接的第一衔接部，所述第一衔接部的宽度为自所述第一弹性臂指向所述第一钳夹的方向上逐渐变宽；
    所述第二弹性臂具有与所述第二钳夹对接的第二衔接部，所述第二衔接部的宽度为自所述第二弹性臂指向所述第二钳夹的方向上逐渐变宽。
  20. 一种施夹钳，包括如权利要求1至19项中任一项所述的钳口组件。
  21. 根据权利要求20所述的施夹钳，还包括：
    工作头；
    装配在所述工作头上的手柄；和
    装配在所述工作头的杆身装置，其中，所述杆身装置包括：
    与所述工作头装配的外套管；
    设置在所述外套管内的杆体组件；
    设置在杆体组件上的夹仓组件；
    其中，所述钳口组件装配在所述外套管、所述杆体组件和所述夹仓组件之一上。
PCT/CN2021/102407 2020-06-29 2021-06-25 钳口组件及施夹钳 WO2022001876A1 (zh)

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Publication number Priority date Publication date Assignee Title
EP1757237A1 (en) * 2005-08-25 2007-02-28 Microline Pentax Inc. Trigger lockout device for clip applying instrument
CN104905843A (zh) * 2010-07-28 2015-09-16 柯惠Lp公司 关节式运动施夹器
US20190125360A1 (en) * 2017-10-30 2019-05-02 Ethicon Llc Clip applier comprising a motor controller
WO2019089427A1 (en) * 2017-10-30 2019-05-09 Ethicon Llc Clip applier comprising a reciprocating clip advancing member
US20190239889A1 (en) * 2018-02-08 2019-08-08 Ethicon Llc Surgical clip applier with living hinge jaws
CN212382696U (zh) * 2020-06-29 2021-01-22 苏州英途康医疗科技有限公司 钳口组件及施夹钳

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