WO2020056656A1 - 血管施夹器止逆装置 - Google Patents

血管施夹器止逆装置 Download PDF

Info

Publication number
WO2020056656A1
WO2020056656A1 PCT/CN2018/106630 CN2018106630W WO2020056656A1 WO 2020056656 A1 WO2020056656 A1 WO 2020056656A1 CN 2018106630 W CN2018106630 W CN 2018106630W WO 2020056656 A1 WO2020056656 A1 WO 2020056656A1
Authority
WO
WIPO (PCT)
Prior art keywords
ratchet
slider
casing
rod
clip applier
Prior art date
Application number
PCT/CN2018/106630
Other languages
English (en)
French (fr)
Inventor
张国扬
Original Assignee
台湾先进手术医疗器材股份有限公司
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 台湾先进手术医疗器材股份有限公司 filed Critical 台湾先进手术医疗器材股份有限公司
Priority to PCT/CN2018/106630 priority Critical patent/WO2020056656A1/zh
Publication of WO2020056656A1 publication Critical patent/WO2020056656A1/zh

Links

Images

Classifications

    • 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

Definitions

  • the invention relates to a structure of a surgical instrument, in particular to a vascular clip applier anti-reverse device with simple structure and easy assembly.
  • vascular clip applier is mainly to extend the long rod-shaped clip applicator structure of the vascular clip applicator into the human body through an opening cut off from the surface of the human body, and then operate the grip part to drive the clip applier structure action.
  • the clamp mouth at the front end of the clamp structure clamps the blood vessel clamps that are sequentially delivered to the inner side of the clamp mouth, and the blood vessel clamp is pressed on the blood vessel to close the blood vessel.
  • the existing vascular clip applier described above will form a ratchet rack in the clamp structure, and then installed inside the housing to be able to engage the ratchet rack in one direction.
  • the cooperation of the ratchet rack and the ratchet block avoids the problem of incoherent movement of the clamp mouth to clamp blood vessels.
  • the above-mentioned anti-reverse structure is not easy to be installed inside and outside the housing.
  • the structure in which the ratchet block needs to be connected to a spring also increases the difficulty of installation. Therefore, the vascular clip applier needs to be improved. Assembly is easier.
  • the present invention forms a rack and a cam in the housing, and cooperates with a one-way movement component to engage the rack to achieve a simple structure and easy assembly.
  • the present invention provides a vascular clip applier anti-reverse device, which includes a casing, a reciprocating rod reciprocally inserted in the middle of the casing, at least one pivotally connected to the casing and connecting the reciprocating rod to reciprocate.
  • a driving component, and a unidirectional moving component fixed on the reciprocating rod wherein:
  • a slider track extending in the front-rear direction is formed in the middle of the inner surface of the casing, and a movable groove is formed on the inner surface of the casing corresponding to at least one of the left and right sides of the slider rail.
  • a ratchet rack is formed on the side wall surface of each movable groove at the end in the second direction, a cam is formed in the middle of each movable groove, and a first guide is formed on the opposite sides of each cam circumferential surface.
  • a leading surface and a second guiding surface, each first guiding surface being closer to the extension line of each ratchet rack than each second guiding surface;
  • the one-way movement component is provided with a slider, which is fixed on the reciprocating rod and is partially slidably embedded in the slider track. According to the position of each movable groove, the slider has a curved elasticity extending to the side.
  • An arm is formed by extending the elastic arms in the second direction to form an extension arm, and a ratchet block is formed at the free end of each extension arm with each of the ratchet racks, and a sliding bar is protruded in the middle of each extension arm.
  • each of the second guiding surfaces when the sliding rods slide against the first guiding surfaces in the first direction, the ratchet blocks unilaterally engage the ratchet racks to slide, and when the sliding rods abut When sliding on the second guide surfaces, the ratchet blocks are retracted from the ratchet racks and moved in the second direction.
  • each of the first guiding surfaces according to the present invention is an inclined surface, and a distance between each of the first guiding surfaces and the extension line of each of the ratchet racks is determined by the second direction.
  • each of the second guide surfaces is a convex arc surface.
  • a convex portion is protruded sideward from the middle of each of the extension arms in the case where the movable grooves are not formed on the inner surface of the top shell.
  • the present invention is provided with two movable grooves, and the two movable grooves are located on the left and right sides of the slider track.
  • the ratchet racks of the present invention are respectively formed on the inner side wall surfaces of the movable grooves at the ends in the second direction.
  • the ratchet racks of the present invention are respectively formed on outer wall surfaces of the movable grooves at the ends in the second direction.
  • the driving component drives the reciprocating rod to move in the first direction of the reciprocating rod and then moves to the second direction.
  • the reciprocating rod can be a nail pusher of a vascular clip applier or Covering the push rod, when the reciprocating rod moves in the first direction, the one-way movement component will be moved together.
  • each sliding rod slides against the first guide surface in the first direction, so that each of the free ends of the extension arms
  • the ratchet block unilaterally engages each ratchet rack to slide, and then the one-way movement component moves to the second direction along with the reciprocating rod.
  • each sliding rod slides to the position of each second guide surface, and abuts against each of the first guiding surfaces.
  • the two guides slide in the second direction. In the process, each ratchet block is retracted from each ratchet rack and moved to the initial position, completing the operation of the drive component driving the reciprocating rod to reciprocate once.
  • the shell can cooperate with the one-way movement component combined with the reciprocating rod, so that the reciprocating rod can only move in one direction when moving in the first direction.
  • the operation of the vascular clip applier is prevented from being inconsistent, and since the anti-reverse structure such as each ratchet rack is formed on the casing and the one-way movement component, it has the advantages of simple structure and easy assembly.
  • FIG. 1 is a perspective view of a first preferred embodiment of the present invention
  • FIG. 2 is a partial exploded view of a top case with the first preferred embodiment of the present invention removed;
  • FIG. 3 is a plan view of a top case according to a first preferred embodiment of the present invention.
  • FIG. 4 is a partial cross-sectional view of the top side of the first preferred embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a backward movement of the one-way movement component of the first preferred embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a forward movement of a one-way movement component according to the first preferred embodiment of the present invention.
  • FIG. 7 is a partially exploded view of a second preferred embodiment of the present invention.
  • FIG. 8 is a partial sectional view of a second preferred embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a backward movement of a one-way movement component according to a second preferred embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the forward movement of the one-way movement component according to the second preferred embodiment of the present invention.
  • FIG. 11 is a partially exploded view of a top case with a third preferred embodiment of the present invention removed;
  • FIG. 12 is a partial cross-sectional view of a top side of a third preferred embodiment of the present invention.
  • FIG. 13 is a partial exploded view of a bottom case disassembled according to a third preferred embodiment of the present invention.
  • Fig. 14 is a partial sectional view of a bottom side of a third preferred embodiment of the present invention.
  • FIG. 1 to FIG. 4 provides a blood vessel clip applier anti-reverse device, which includes a casing 10, a clip structure 20 inserted through the casing 10, Two driving components 30 pivotally connected to the casing 10 and a one-way movement component 40 fixed to the clip applying structure 20, wherein:
  • the casing 10 includes a top casing 11 and a bottom casing 12 which are combined with each other.
  • a mounting space 13 is formed in the middle of the casing 10 along the front-rear direction.
  • a front surface of the casing 10 is connected to a front end of the mounting space 13.
  • the through opening 131 forms a side opening 132 on the left side and the right side of the casing 10, and the inner sides of the two side openings 132 communicate with the installation space 13, respectively, corresponding to the left and right sides of the front end of the installation space 13,
  • a vertical shaft assembly 14 is provided in the housing 10 in a symmetrical manner on the left and right sides. In this preferred embodiment, each shaft assembly 14 is a rivet.
  • the middle of the inner surface of the top case 11 is recessed to form a slider rail 111 extending linearly in the front and rear directions, corresponding to the left and right sides of the slider rail 111.
  • the inner surface of the top case 11 is left and right symmetrical.
  • the shape of the recess is concave to form two movable grooves 112.
  • the two movable grooves 112 are long grooves extending in the front and rear directions.
  • a ratchet rack 113 is formed on the inner wall surface of the front end of each movable groove 112.
  • Each ratchet rack 113 is A unidirectional ratchet rack extending in the front-to-rear direction forms a cam 114 in the middle of each movable groove 112.
  • Each cam 114 is an elongated block extending in the front and rear directions.
  • a first guide surface 1141 and a second guide surface 1142 are respectively formed on the sides, and each first guide surface 1141 is closer to each extension line of the ratchet rack 113 than each second guide surface 1142, each The first guide surfaces 1141 are inclined surfaces, and the distance between each first guide surface 1141 and the mating extension line of the ratchet rack 113 is gradually narrowed from front to back.
  • Each second guide The surface 1142 is a convex arc surface.
  • the clamping structure 20 is installed in the installation space 13 of the housing 10 and the front end is pushed out through the through opening 131.
  • the clamping structure 20 includes a jaw pull rod 21, a push-in push rod 22, and a nail pusher.
  • the nail push rod 23 is used as a reciprocating rod that provides the combination of the one-way movement component 40.
  • the jaw rod 21 is a long rod body and the rear end of the jaw rod 21 is fixed at At the rear end of the installation space 13, after the jaw rod 21 passes forward through the through hole 131, a jaw 211 is provided at the front end of the jaw rod 21, and the jaw 211 can sequentially accept the forward track from the rear. Each nail advancing.
  • the covering push rod 22 is slidably arranged on the bottom side of the jaw pull rod 21 in a forward and backward direction.
  • the covering push rod 22 passes through the through opening 131 and the front end of the covering push rod 22 reaches the rear of the jaw 211.
  • the jaw 211 can be pressed and clamped, and two first wings 221 are respectively extended on the left and right sides of the covering push rod 22 located in the casing 10.
  • the nail push rod 23 is slidably arranged on the top side of the jaw pull rod 21 in a forward and backward direction.
  • the nail push rod 23 moves back and forth, it is the first direction toward the nail push rod 23 first. After moving in the direction, it moves in the second direction opposite to the first direction.
  • the first direction of the nail push rod 23 is the rear and the second direction is the front.
  • the nail pusher 23 passes through the through opening 131, and a nail piece 231 is formed at the front end of the nail push rod 23, and the nail piece 231 is used to advance the nails behind the jaw 211 to the jaw.
  • two second fins 232 are respectively extended on the left and right sides of the rear end of the nail push rod 23, and the two second fins 232 are located directly behind the two first fins 221.
  • a spring 24 is embedded in the rear end, the spring 24 is sleeved around the rear end of the jaw tie rod 21, and the rear end of the spring 24 abuts against a wall surface at the rear end of the installation space 13, the two second wings 232 abuts against the front end of the spring 24 and fits directly below the slider rail 111 to form a slider embedding groove 233 in the nail push rod 23.
  • Two driving components 30 are respectively disposed on the left and right sides of the casing 10.
  • the two driving components 30 include a grip 31, a first link 32, and a second link 33.
  • a shaft is provided at the front end of each grip 31. Hole 311, the front end of each grip 31 penetrates into each side opening 132, each shaft hole 311 is sleeved on the corresponding shaft assembly 14, and a pivot portion 312 is formed on the inner surface of the middle of each grip 31, and A finger sleeve hole 313 is formed at the rear end of 31, and the outer ends of each of the first and second links 32 and 33 are coaxially pivotally connected to the pivoting portion 312 of each grip 31, and each of the first links 32
  • the inner end of the second link 33 and the inner end of each second link 33 are pivotally connected to the first fins 221 and the second fins 232, respectively.
  • the front and rear positions of the pivotal portions 312 are located in the first joints. Between the inner end of the lever 32 and each second link 33.
  • the one-way movement component 40 includes a slider 41, two elastic arms 42, and two extension arms 43, preferably, the one-way movement component 40 is a plastic product having both strength and flexibility.
  • the slider 41 The bottom of the slider 41 is slidably embedded in the slider indentation groove 233, and the top of the slider 41 is slidably embedded in the slider rail 111.
  • the curved rod body bent forward, the structure and shape of each elastic arm 42 make it flexible.
  • the two extension arms 43 respectively extend forward from the front end of each elastic arm 42.
  • Each extension arm 43 is located below each movable groove 112.
  • a ratchet block 431 is formed at the front end of each extension arm 43.
  • Each ratchet block 431 extends into each of the mating movable slots 112 to engage each ratchet rack. 113.
  • a convex portion 432 is protruded from the middle of each extension arm 43 to the side, and each convex portion 432 reliably does not form each movable groove 112 on the inner surface of the top case 11 when the one-way movement component 40 moves, so that each extension arm 43 And when the elastic arms 42 are deformed under force, they can only deflect without twisting; in accordance with the positions of the front ends of the first guide surfaces 1141, a round rod is protruded in the direction of each movable groove 112 in the middle of each extension arm 43.
  • Each of the sliding rods 433 is located at a position where the sliding rods 433 can enter backward and abut against the first guide surfaces 1141.
  • each extension arm 43 When each sliding rod 433 circulates around each of the first guide surface 1141 and each of the second guide surfaces 1142, each extension arm 43 first swings in the direction of the ratchet rack 113, so that each of the front ends of the extension arms 43 The ratchet block 431 is unidirectionally engaged in the mating ratchet rack 113 and slides backward, and the force of the rearward meshing is greater.
  • each extension arm 43 When each sliding rod 433 detours to each second guide surface 1142, each extension arm 43 is away from the ratchet rack 113, so that each ratchet block 431 at the front end of each extension arm 43 is retracted from the rear end of the ratchet rack 113, and then moved forward to a position where the ratchet rack 113 can be engaged.
  • FIG. 2 and FIG. 4 When the present invention is used, please cooperate with the first preferred embodiment shown in FIG. 2 and FIG. 4 to FIG. 5.
  • the positions of the two finger sleeve holes 313 are held by the user's hand, and the two rotation shaft assemblies 14 are used as the rotation centers. Press the two grips 31 inward.
  • the two first links 32 drive the covering push rod 22 to advance and drive the jaw 211 to clamp the nails inside, while the two second links 33 act as upper nail pushes.
  • the nail pusher 23 of the lever moves backward in the first direction of the nail pusher 23, and the unidirectional movement component 40 is driven along the slider track during the movement of the nail pusher 23 backward.
  • the 111 moves backward, and gradually compresses the spring 24 during the backward movement; then when the user releases the two grips 31, the compressed spring 24 pushes the nail pusher 23 toward the nail pusher
  • the second direction of 23 is to move forward.
  • the one-way movement component 40 is moved forward, and at the same time, the two grips 31 are opened and the cover push rod is linked. 22 retreats, when the covering push rod 22 retracts, the jaw 211 is released to open the jaw 211, and the upper nail moved forward pushes The dial 23 of the staple advancing plate 231 to the nail 211 within the jaw.
  • the push-rod 23 will drive the one-way movement component 40 to reciprocate along the slider track 111, and then move forward and backward. Please refer to FIG. 4 and FIG. As shown in FIG.
  • each sliding rod 433 respectively circulate around the first guiding surfaces 1141 and the second guiding surfaces 1142, and when the sliding rods 433 move backward and abut against the first guiding surfaces
  • each extension arm 43 moves toward the mating ratchet rack 113, so that each ratchet block 431 at the front end of each extension arm 43 engages the mating ratchet rack 113 and can only unidirectionally Sliding backward, since the rear side of each first guide surface 1141 will gradually approach the extension line of the mating ratchet rack 113, each sliding rod 433 can be guided to drive each extension arm 43 to perform a larger deflection action, so The more the ratchet block 431 meshes with the ratchet rack 113 as it moves backward, it can resist that when the user suddenly releases the two grips 31, the spring 24 compressed backward pushes the upper The force of the nail push rod 23 and the one-way movement component 40 causes each ratchet block 431 to mesh with the
  • each sliding rod 433 detours to each second guide surface 1142, since each sliding rod 433 is no longer restricted by each first guide surface 1141, the two extending arms 43 will then Elastically return to the original position and move away from each ratchet rack 113, so that each ratchet block 431 at the front end of each extension arm 43 is retracted from the rear end of the ratchet rack 113, and then the one-way movement component 40 is advanced Each sliding rod 433 slides along each second guide surface 1142, so that the two ratchet blocks 431 move forward to a position where they initially engage each ratchet rack 113.
  • each ratchet block 431 is unidirectionally engaged with the ratchet rack 113, which can prevent the nail push rod 23 from retreating. Forwarding, so as to prevent the user from pressing the two handles 31 in the reverse direction during the approaching process, the operation of the clamping pusher 22 driving the jaw 211 forward is consistent, and because each ratchet rack 113 of the present invention And each cam 114 is directly formed on the top case 11, and the ratchet block 431 and each sliding rod 433 are provided on the one-way movement component 40. Therefore, the structure of the parts is simple and easier to assemble.
  • two movable grooves 112 are respectively provided on the left and right sides of the slider rail 111, and each ratchet rack 113 and each cam 114 are formed in each movable groove 112.
  • the movable groove 112 may be provided on only one of the left and right sides of the slider rail 111.
  • the one-way movement component 40 cooperates with a single movable groove 112, and The elastic arm 42 and the extension arm 43 are extended on one side of the movable groove 112.
  • the above-mentioned ratchet racks 113 are formed on the inner side wall surface of the front end of each movable groove 112, and each ratchet rack 113 may be provided outside the front end of each movable groove 112.
  • the wall surface is the second preferred embodiment of the present invention as shown in FIGS. 7 and 8.
  • a slider rail 111 extending linearly in the front and rear directions is recessed in the middle of the inner surface of the top case 11, corresponding to the left and right sides of the slider rail 111.
  • the inner surface of the shell 11 is recessed in a left and right symmetrical form to form two movable grooves 112.
  • a ratchet rack 113 is formed on the outer wall surface of the front end of each movable groove 112, and each ratchet rack 113 is a unidirectional extending in the front-rear direction.
  • a ratchet rack is formed with a cam 114 in the middle of each movable groove 112.
  • Each cam 114 is an elongated block extending in the front and rear directions, and a continuous first section is formed on opposite sides of the peripheral surface of each cam 114.
  • Each first guide surface 1141 is closer to the extension line of the ratchet rack 113 than the second guide surface 1142.
  • Each first guide surface 1141 is The inclined surfaces, the distance between each first guide surface 1141 and the mating extension line of the ratchet rack 113 are gradually narrowed from front to back, and each second guide surface 1142 is a convex arc surface.
  • the second preferred embodiment of the present invention also cooperates with the slider rail 111 directly below, and forms a slider embedding groove 233 on the nail push rod 23, and a unidirectional moving component 40 is provided corresponding to the slider embedding groove 233.
  • the one-way movement component 40 is provided with a slider 41.
  • the bottom of the slider 41 is embedded and fixed in the slider recess 233.
  • the top of the slider 41 is slidably embedded in the slider track 111.
  • the left and right sides of the rear end of the block 41 are bent sideways and forward to form two elastic arms 42.
  • An extension arm 43 is extended forward from the front end of each elastic arm 42.
  • Each extension arm 43 is located below each movable groove 112 to cooperate with each ratchet.
  • the strip 113 forms a ratchet block 431 at the front end of each extension arm 43.
  • Each ratchet block 431 extends into each of the mating movable grooves 112 to engage each ratchet rack 113 and cooperate with the front end of each first guide surface 1141.
  • a circular rod-shaped sliding bar 433 is protruded in the middle of each extension arm 43, and each sliding bar 433 is located at a position that can abut against the front end of each first guide surface 1141 in the rearward direction.
  • Swing makes the ratchet block 431 unidirectionally engage in the mating ratchet rack 113 and slide backward, and the greater the force of the rearward meshing, when each sliding rod 433 detours to each second guide surface 1142
  • the two extension arms 43 will elastically return to their original positions, so that each extension arm 43 is away from the ratchet rack 113, each ratchet block 431 is retracted from the rear end of the ratchet rack 113, and then the one-way movement component 40 is advanced.
  • each sliding rod 433 slides along each second guide surface 1142, so that each ratchet block 431 moves forward to a position where it can initially engage the ratchet rack 113.
  • the second preferred embodiment of the present invention may be provided only on the left and right sides of the slider rail 111
  • One side is provided with a movable groove 112, and the ratchet rack 113 and the cam 114 formed in the movable groove 112.
  • the one-way movement assembly 40 extends only on one side of the slider 41.
  • the elastic arm 42 and the extension arm 43 cooperate with the ratchet rack 113 and the cam 114 on one side with the ratchet block 431 and the sliding rod 433 on one side.
  • the one-way movement assembly 40 is combined with the nail push rod 23 as a reciprocating rod, and only when the nail push rod 23 is moved backwards, It can move backwards unidirectionally to achieve the effect of making the operation of the vascular clip applier coherent.
  • the third preferred embodiment of the present invention can further cover the pusher 22 As a kind of reciprocating rod, when the covering push rod 22 is combined with another one-way movement component 40 to achieve the effect that the covering push rod 22 moves forward, it can only move forward unidirectionally and cannot reverse.
  • the third embodiment can be completed with the same structure as the first preferred embodiment, or the related structure of another one-way motion component 40, or a combination of the two. The same effect of preventing reverse operation and easy installation.
  • the above-mentioned third preferred embodiment of the present invention is a blood vessel clip applier anti-reverse device, which is the same as the first preferred embodiment and includes a casing 10 and a casing disposed therethrough.
  • the structure and movement of the third preferred embodiment described above are all The configuration is the same as that described in the first preferred embodiment.
  • a one-way movement component 40 (hereinafter referred to as a The moving component 40) is provided at the bottom of the casing 10 corresponding to the one-way moving component 40 to prevent the one-way moving component 40 from reversely moving.
  • the structure for preventing the one-way movement component 40 from moving in the reverse direction is to form a slider track 121 that extends linearly in the front and rear directions by recessing in the middle of the inner surface of the bottom case 12, corresponding to the left and right sides of the slider track 121.
  • two movable grooves 122 are recessed on the inner surface of the bottom case 12 in a left-right symmetrical manner.
  • the two movable grooves 122 are long grooves extending in the front and rear directions, respectively.
  • a ratchet rack 123 is formed on the inner wall surface, and each ratchet rack 123 is a unidirectional ratchet rack extending obliquely in the front-rear direction.
  • a cam 124 is formed in the middle of each movable groove 122, and each cam 124 is along the front and rear.
  • a first guide surface 1241 and a second guide surface 1242 are formed on opposite sides of the peripheral surface of each cam 124, and each of the first guide surfaces 1241 is more than the second guide surface 1241.
  • the guide surfaces 1242 are close to the extension lines of the mating ratchets 123.
  • Each first guide surface 1241 is an inclined surface
  • each second guide surface 1242 is a convex arc surface.
  • the covering push rod 22 is a reciprocating rod that provides the combination of the one-way movement component 40.
  • the covering push rod 22 reciprocates, it is the first direction toward the covering push rod 22. After moving in the direction, it is moved in a second direction opposite to the first direction.
  • the first direction of the covering push rod 22 is forward and the second direction is rear.
  • the driving pusher 22 can be driven to move in the first direction of the driving pusher 22, that is, the single driving member 30 is driven in the process.
  • the first direction movement component 40 moves forward along the slider track 121 toward the overlying push rod 22, and then when the two driving components 30 are released, the overlying push rod 22 and the one-way movement The component 40 will move back to the original position in the second direction of the covering push rod 22, that is, backward.
  • the one-way movement component 40 includes a slider 41, two elastic arms 42, and two extension arms 43.
  • the slider 41 is fixed on the covering push rod 22 at the top, and the bottom of the slider 41 is slidably Embedded in the slider rail 121, the two elastic arms 42 are arc-shaped rods that are bent sideways and backwards by the slider 41.
  • the structure and shape of each elastic arm 42 make it flexible.
  • the two extension arms 43 The rear ends of the elastic arms 42 respectively extend backward, and cooperate with each ratchet bar 123 in each movable groove 122 to form a ratchet block 431 at the free end of each extension arm 43, and each ratchet block 431 extends into each cooperation
  • the ratchet rack 123 can be engaged in the movable groove 122.
  • a round rod-shaped sliding bar 433 is protruded in the direction of each movable groove 122 in the middle of each extension arm 43.
  • Each sliding bar 433 is located forwardly and can abut against each other.
  • each extension arm 43 When each sliding rod 433 is detoured to each of the second guide surfaces 1242, each extension arm 43 is away from the ratchet rack 123, so that each Each ratchet block 431 at the front end of the extension arm 43 is retracted from the front end of the ratchet rack 123, and then moved back to a position that can engage the ratchet rack 123, so that the covering push rod 22 moves forward only Being able to move in one direction can avoid the reverse movement of the covering push rod 22 and make the operation of the vascular clip applier incoherent.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Reproductive Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

一种血管施夹器止逆装置，是在一外壳（10）的中间设有一可沿前后方向往复动作的往复杆，在该外壳（10）枢接一握把（31），在该握把（31）与该往复杆之间枢接一连杆（32,33），在该外壳（10）的顶侧设有一活动槽（112,122），在该活动槽（112,122）的侧壁设有一棘齿条（113,123），又在该活动槽（112,122）内形成一凸轮（114,124），在该往复杆固设一滑块（41），由该滑块（41）伸设一可弹性地侧向摆动的延伸臂（43），在该延伸臂（43）设有一滑动杆（433）以及一伸入该活动槽（112,122）的棘齿块（431），当该往复杆往复动作而使该滑动杆（433）循环绕行该凸轮（114,124）时，该棘齿块（431）先啮合在该棘齿条（113,123）单向滑动后再由该棘齿条（113,123）退开，除了避免该往复杆往复动作时逆向以外，构造简单而容易组装。

Description

血管施夹器止逆装置 技术领域
本发明涉及一种手术器械的构造，尤其涉及一种构造简单容易组装的血管施夹器止逆装置。
背景技术
在胸腔手术的进行中，需要将血管闭合以避免血液由手术部位的切口流失，这时会使用闭合血管的手术器械，例如血管施夹器来将血管闭合。上述血管施夹器的使用方式，主要是将血管施夹器长杆状的施夹构造由人体表面划开的开口伸入人体内，接着操作握把的部分带动该施夹构造动作，以该施夹构造前端的夹嘴夹合依次输送到夹嘴内侧的血管夹的方式，将血管夹钳压在血管上来将血管闭合。
为了避免该夹嘴夹合血管时的动作不连贯，上述现有的血管施夹器会在该施夹构造形成一棘齿条，再于该壳体的内部安装可单向啮合该棘齿条的棘齿块，通过该棘齿条与该棘齿块的配合来避免该夹嘴夹合血管的动作不连贯的问题。但上述的止逆构造由于该棘齿块的零件小，不容易安装在该壳体内以外，该棘齿块需要连接一弹簧的构造也增加了安装的难度，因此有待改良使血管施夹器的组装更加容易。
发明内容
由于现有血管施夹器止逆构造的零件小且需要弹簧，因此构造不容易安装。为此，本发明在外壳形成齿条与凸轮，配合一单向运动组件啮合齿条达到止逆的构造简单且容易组装的功效。
为达到上述目的，本发明提供一种血管施夹器止逆装置，包括一外壳、一往复移动地穿置在该外壳中间的往复杆、至少一枢接在该外壳并连结该往复杆往复移动的驱动组件，以及一固设在该往复杆的单向运动组件，其中：
该往复杆进行往复移动时是依序朝向一第一方向以及一与该第一方向相反方向的第二方向移动；
配合该单向运动组件在该外壳的内面中间形成一沿前后方向延伸的滑块 轨道，对应该滑块轨道左、右两侧的至少一侧，分别在该外壳的内面形成一活动槽，在上述各活动槽位于该第二方向端部的侧壁面分别形成一棘齿条，在上述各活动槽的中间分别形成一凸轮，在各凸轮周面的相反两侧分别形成相连的一第一导引面以及一第二导引面，各第一导引面较各第二导引面靠近各棘齿条的延伸线；
该单向运动组件设有一滑块，该滑块固设在该往复杆并且部分滑动地嵌设在该滑块轨道，配合各活动槽的位置由该滑块分别朝旁伸设一弯曲的弹性臂，在上述各弹性臂向该第二方向延伸形成一延伸臂，配合上述各棘齿条在各延伸臂的自由端形成一棘齿块，在上述各延伸臂的中间凸设一滑动杆，上述各滑动杆向该第一方向移动后进入上述各第一导引面，该单向运动组件随着该往复杆的往复移动令上述各滑动杆循环绕行上述各第一导引面以及上述各第二导引面，当上述各滑动杆抵靠上述各第一导引面向该第一方向滑动时，上述各棘齿块单向地啮合上述各棘齿条滑动，当上述各滑动杆抵靠上述各第二导引面滑动时，上述各棘齿块由上述各棘齿条退开并向该第二方向移动。
作为本发明的进一步改进，本发明所述的各第一导引面是倾斜面，各第一导引面与所述的各棘齿条的延伸线之间的距离，是由该第二方向朝向该第一方向逐渐缩窄的状态，所述的各第二导引面是凸弧面。
作为本发明的进一步改进，本发明配合所述的顶壳内面未形成所述的各活动槽处，在所述的各延伸臂的中间朝旁凸设一凸部。
作为本发明的进一步改进，本发明设有两个所述的活动槽，两活动槽位于所述的滑块轨道的左、右两侧。
作为本发明的进一步改进，本发明所述各棘齿条是分别形成在所述各活动槽位于该第二方向端部的内侧壁面。
作为本发明的进一步改进，本发明所述各棘齿条是分别形成在所述各活动槽位于该第二方向端部的外侧壁面。
当本发明使用时，是以该驱动组件驱动该往复杆向该往复杆的第一方向移动后再向第二方向移动的往复动作，该往复杆可以是血管施夹器的上钉推杆或覆进推杆，当该往复杆向第一方向移动时会带动该单向运动组件一同移动，这时各滑动杆抵靠各第一导引面向第一方向滑动，使得各延伸臂自由端的各棘齿块单向地啮合各棘齿条滑动，接着该单向运动组件随着该往复杆向 第二方向移动，这时各滑动杆滑动至各第二导引面的位置，抵靠各第二导引面向第二方向滑动，过程中各棘齿块由各棘齿条退开并移动至初始的位置，完成该驱动组件带动该往复杆往复动作一次的操作。
本发明的有益效果在于：
利用该外壳在各活动槽内设有的各棘齿条以及各凸轮，能与结合在该往复杆的该单向运动组件配合，使得该往复杆向第一方向移动时仅能单向移动，防止血管施夹器的操作逆向不连贯，并且由于各棘齿条等止逆的构造是形成在该外壳以及该单向运动组件，因此具有构造简单且容易组装的功效。
附图说明
图1是本发明第一较佳实施例的立体图；
图2是本发明第一较佳实施例拆卸顶壳的部分分解图；
图3是本发明第一较佳实施例顶壳的平面图；
图4是本发明第一较佳实施例顶侧的部分剖面图；
图5是本发明第一较佳实施例单向运动组件后退的动作示意图；
图6是本发明第一较佳实施例单向运动组件前进的动作示意图；
图7是本发明第二较佳实施例的部分分解图；
图8是本发明第二较佳实施例的部分剖面图；
图9是本发明第二较佳实施例单向运动组件后退的动作示意图；
图10是本发明第二较佳实施例单向运动组件前进的动作示意图；
图11是本发明第三较佳实施例拆卸顶壳的部分分解图；
图12是本发明第三较佳实施例顶侧的部分剖面图；
图13是本发明第三较佳实施例拆卸底壳的部分分解图；
图14是本发明第三较佳实施例底侧的部分剖面图。
符号说明：
10外壳                  11顶壳
111滑块轨道             112活动槽
113棘齿条               114凸轮
1141第一导引面          1142第二导引面
12底壳                  121滑块轨道
122活动槽               123棘齿条
124凸轮                 1241第一导引面
1242第二导引面          13安装空间
131贯穿口               132侧开口
14转轴组件              20施夹构造
21钳嘴拉杆              211钳嘴
22覆进推杆              221第一翼片
23上钉推杆              231拨钉片
232第二翼片             233滑块嵌槽
24弹簧                  30驱动组件
31握把                  311轴孔
312枢接部               313手指套孔
32第一连杆              33第二连杆
40单向运动组件          41滑块
42弹性臂                43延伸臂
431棘齿块               432凸部
433滑动杆
具体实施方式
为能详细了解本发明的技术特征及实用功效，并可依照说明书的内容来实施，进一步以如图式所示的较佳实施例，详细说明如下。
请参看如图1至图4所示的本发明第一较佳实施例，是提供一种血管施夹器止逆装置，包括一外壳10、一穿置在该外壳10的施夹构造20、两枢接在该外壳10的驱动组件30，以及一固设在该施夹构造20的单向运动组件40，其中：
该外壳10包括上、下结合的一顶壳11以及一底壳12，在该外壳10内的中间沿前后方向形成一安装空间13，在该外壳10的前面形成一连接该安装空间13前端的贯穿口131，在该外壳10的左侧面以及右侧面分别形成一侧开口132，两侧开口132的内侧分别与该安装空间13相通，对应该安装空间13前端的左、右两侧，在该外壳10内以左、右对称的形态分别设有一竖直的转轴 组件14，在本较佳实施例中各转轴组件14是铆钉。
在该顶壳11内面的中间凹入形成一沿前、后方向直线延伸的滑块轨道111，对应该滑块轨道111的左、右两侧，在该顶壳11的内面以左、右对称的形态凹入形成两活动槽112，两活动槽112分别是沿前、后方向延伸的长槽，在各活动槽112前端部的内侧壁面分别形成一棘齿条113，各棘齿条113是沿前后方向延伸的单向棘齿条，在各活动槽112的中间分别形成一凸轮114，各凸轮114是沿前、后方向延伸的长条形块体，在各凸轮114周面的相反两侧分别形成相连的一第一导引面1141以及一第二导引面1142，各第一导引面1141较各第二导引面1142靠近各配合的该棘齿条113的延伸线，各第一导引面1141是倾斜面，各第一导引面1141与各配合的该棘齿条113的延伸线之间的距离，是由前向后逐渐缩窄的状态，各第二导引面1142是凸弧面。
该施夹构造20安装在该外壳10的该安装空间13并且前端由该贯穿口131向前穿出，该施夹构造20包括一钳嘴拉杆21、一覆进推杆22以及一上钉推杆23，在本较佳实施例中是将该上钉推杆23作为提供该单向运动组件40结合的往复杆，该钳嘴拉杆21是长杆体并且该钳嘴拉杆21的后端固定在该安装空间13的后端，该钳嘴拉杆21向前穿出该贯穿口131后，在该钳嘴拉杆21的前端设有一钳嘴211，该钳嘴211可依次接受由后方的轨道往前推进的各个钉子。该覆进推杆22是以可沿前、后方向滑动的形态设于该钳嘴拉杆21的底侧，该覆进推杆22穿过该贯穿口131并且前端伸抵该钳嘴211的后侧，该覆进推杆22的前端前进时可压迫该钳嘴211夹合，在该覆进推杆22位于该外壳10内的左、右两侧分别伸设两第一翼片221。
该上钉推杆23是以可沿前、后方向滑动的形态设于该钳嘴拉杆21的顶侧，当该上钉推杆23往复移动时是先朝该上钉推杆23的第一方向移动后再朝相反于第一方向的第二方向移动，在本较佳实施例中该上钉推杆23的第一方向是后方而第二方向是前方。该上钉推杆23穿过该贯穿口131，在该上钉推杆23前端形成一拨钉片231，该拨钉片231用于将该钳嘴211后方轨道的各个钉子推进至该钳嘴211内，在该上钉推杆23后端的左、右两侧分别伸设两第二翼片232，两第二翼片232位于两第一翼片221的正后方，在该安装空间13的后端嵌设一弹簧24，该弹簧24套设在该钳嘴拉杆21的后端周围，且该弹簧24的后端抵靠在该安装空间13后端的壁面，所述的两第二翼片232 抵靠在该弹簧24的前端，配合该滑块轨道111的正下方，在该上钉推杆23形成一滑块嵌槽233。
两驱动组件30分别设于该外壳10的左右两侧，两驱动组件30分别包括一握把31、一第一连杆32以及一第二连杆33，在各握把31的前端设有一轴孔311，各握把31的前端穿入各侧开口132，将各轴孔311套设在配合的各转轴组件14，在各握把31中间的内面形成一枢接部312，在各握把31的后端形成一手指套孔313，各第一连杆32以及各第二连杆33的外端同轴心地枢接在各握把31的该枢接部312，各第一连杆32的内端以及各第二连杆33的内端分别枢接在配合的各第一翼片221以及配合的各第二翼片232，各枢接部312的前、后位置位于各第一连杆32的内端与各第二连杆33之间。
该单向运动组件40包括一滑块41、两弹性臂42以及两延伸臂43，较佳的，该单向运动组件40是兼具强度并具有一定可挠性的塑料制品，该滑块41是以底部嵌设固定在该滑块嵌槽233，该滑块41的顶部可滑动地嵌设在该滑块轨道111，两弹性臂42是由该滑块41后端的左右侧面分别朝旁且朝前弯曲的弧形杆体，各弹性臂42的构造与形状使其具有可挠性，两延伸臂43分别由各弹性臂42的前端向前延伸，各延伸臂43位于各活动槽112的下方，配合各活动槽112内的各棘齿条113，在各延伸臂43的前端形成一棘齿块431，各棘齿块431伸入各配合的该活动槽112内而可啮合各棘齿条113。
由各延伸臂43的中间分别朝旁凸设一凸部432，各凸部432在该单向运动组件40移动时可靠在该顶壳11内面未形成各活动槽112处，使各延伸臂43以及各弹性臂42受力变形时只会偏摆而不会扭转；配合各第一导引面1141前端的位置，在各延伸臂43的中间朝各活动槽112的方向凸设一圆杆状的滑动杆433，各滑动杆433位于向后可进入、抵靠各第一导引面1141的位置。当各滑动杆433循环绕行各第一导引面1141以及各第二导引面1142时，各延伸臂43先向配合的该棘齿条113的方向摆动，使得各延伸臂43前端的各棘齿块431单向地啮合在配合的该棘齿条113向后滑动，且越向后啮合的力量越大，当各滑动杆433绕行至各第二导引面1142时，各延伸臂43远离该棘齿条113，使得各延伸臂43前端的各棘齿块431由该棘齿条113的后端退开，再往前移动至可啮合该棘齿条113的位置。
当本发明使用时，请配合参看图2以及图4至图5所示的第一较佳实施 例，使用者的手握住两手指套孔313的位置，分别以两转轴组件14为旋转中心将两握把31向内压，这时候两第一连杆32带动该覆进推杆22前进并驱动该钳嘴211夹合其内部的钉子，同时两第二连杆33带动作为上钉推杆的该上钉推杆23向该上钉推杆23的第一方向也就是向后移动，该上钉推杆23向后移动的过程中带动该单向运动组件40沿着该滑块轨道111向后移动，且向后移动的过程中逐渐压缩该弹簧24；接着当使用者放开两握把31时，受压缩的该弹簧24将该上钉推杆23推动向该上钉推杆23的第二方向也就是向前移动，该上钉推杆23向前移动的过程中带动该单向运动组件40向前移动，同时使两握把31张开并连动该覆进推杆22后退，当该覆进推杆22后退时会释放该钳嘴211使该钳嘴211张开，往前移动的该上钉推杆23的该拨钉片231将钉子推进该钳嘴211内。
上述操作本发明第一较佳实施例的过程中，该上钉推杆23会带动该单向运动组件40沿着该滑块轨道111进行先后退再前进的往复运动，请参看图4、图5所示，过程中两滑动杆433分别会循环地绕行各第一导引面1141以及各第二导引面1142，当各滑动杆433向后移动并抵靠在各第一导引面1141滑动时，各延伸臂43会朝着配合的该棘齿条113的方向移动，使得各延伸臂43前端的各棘齿块431啮合在配合的该棘齿条113上并且仅能单向地往后滑动，由于各第一导引面1141的后侧会逐渐靠近配合的该棘齿条113的延伸线，可导引各滑动杆433带动各延伸臂43进行更大的偏摆动作，因此各棘齿块431越向后退时与该棘齿条113啮合的力量就越大，可抵抗当使用者过程中突然放开两握把31时，后方被压缩的该弹簧24向前推动该上钉推杆23以及该单向运动组件40的力量，使各棘齿块431啮合在配合的该棘齿条113上的位置不会向前滑脱。
请配合参看图6所示，当各滑动杆433绕行至各第二导引面1142时，由于各滑动杆433不再受各第一导引面1141的限制，这时两延伸臂43会弹性复位至原本的位置，朝向远离各棘齿条113的方向移动，使得各延伸臂43前端的各棘齿块431由该棘齿条113的后端退开，接着该单向运动组件40前进，各滑动杆433沿着各第二导引面1142滑动，使得两棘齿块431再往前移动至一开始啮合各棘齿条113的位置。
上述该单向运动组件40与该上钉推杆23一同后退后的过程中，通过各 棘齿块431单向地与该棘齿条113啮合，能避免该上钉推杆23后退的过程中前进，如此能避免使用者压动两握把31靠近过程中的逆向动作，使该覆进推杆22往前驱动该钳嘴211夹合的操作连贯，并且由于本发明的各棘齿条113以及各凸轮114是直接形成在该顶壳11，并在该单向运动组件40上设有配合的各棘齿块431以及各滑动杆433，因此零件的构造简单较容易组装。
本发明除上述第一较佳实施例，是在该滑块轨道111的左右两侧分别设有两个所述的活动槽112，再于各活动槽112形成各棘齿条113以及各凸轮114以外，也可以只在该滑块轨道111左右两侧的其中一侧设有所述的活动槽112，这时该单向运动组件40配合单一个的活动槽112，仅在该滑块41对应该活动槽112的一侧延伸设有所述的该弹性臂42以及该延伸臂43。
本发明除如上述第一较佳实施例，是在各活动槽112前端的内侧壁面形成所述的各棘齿条113以外，也可将各棘齿条113设于各活动槽112前端的外侧壁面，如图7、图8所示的本发明第二较佳实施例。
本发明第二较佳实施例是在该顶壳11内面的中间凹入形成一沿前、后方向直线延伸的滑块轨道111，对应该滑块轨道111的左、右两侧，在该顶壳11的内面以左、右对称的形态凹入形成两活动槽112，在各活动槽112前端部的外侧壁面分别形成一棘齿条113，各棘齿条113是沿前后方向延伸的单向棘齿条，在各活动槽112的中间分别形成一凸轮114，各凸轮114是沿前、后方向延伸的长条形块体，在各凸轮114周面的相反两侧分别形成相连的一第一导引面1141以及一第二导引面1142，各第一导引面1141较各第二导引面1142靠近各配合的该棘齿条113的延伸线，各第一导引面1141是倾斜面，各第一导引面1141与各配合的该棘齿条113的延伸线之间的距离，是由前向后逐渐缩窄的状态，各第二导引面1142是凸弧面。
本发明第二较佳实施例，同样配合该滑块轨道111的正下方，在该上钉推杆23形成一滑块嵌槽233，对应该滑块嵌槽233设有一单向运动组件40，该单向运动组件40设有一滑块41，该滑块41的底部嵌设固定在该滑块嵌槽233，该滑块41的顶部可滑动地嵌设在该滑块轨道111，由该滑块41后端的左右侧面分别朝旁且朝前弯曲形成两弹性臂42，由各弹性臂42的前端向前延伸一延伸臂43，各延伸臂43位于各活动槽112的下方，配合各棘齿条113在各延伸臂43的前端形成一棘齿块431，各棘齿块431伸入各配合的该活动槽 112内而可啮合各棘齿条113，配合各第一导引面1141前端的位置，在各延伸臂43的中间凸设一圆杆状的滑动杆433，各滑动杆433位于向后可抵靠各第一导引面1141前端的位置。
请配合参看图8至图10所示，当该单向运动组件40随着该上钉推杆23移动而沿着该滑块轨道111后退后再前进时，各滑动杆433会循环绕行各第一导引面1141以及各第二导引面1142，当各滑动杆433抵靠各第一导引面1141向后滑动时，会带动各延伸臂43朝向配合的该棘齿条113的方向摆动，使得各棘齿块431单向地啮合在配合的该棘齿条113向后滑动，且越向后啮合的力量越大，当各滑动杆433绕行至各第二导引面1142时，两延伸臂43会弹性地回复原来的位置，使得各延伸臂43远离该棘齿条113，各棘齿块431由该棘齿条113的后端退开，接着该单向运动组件40前进，过程中各滑动杆433沿着各第二导引面1142滑动，使各棘齿块431再往前移动至一开始可啮合该棘齿条113的位置。
由于本发明第二较佳实施例的其余构造以及功效皆与第一较佳实施例相同，因此本发明在此不再赘述。与本发明第一较佳实施例相同，本发明第二较佳实施例除了在该滑块轨道111的左右两侧设有两活动槽112以外，也可以只在该滑块轨道111左右两侧的其中一侧设有活动槽112，以及形成在该活动槽112的该棘齿条113以及该凸轮114，这时该单向运动组件40仅在该滑块41的一侧伸设所述的弹性臂42以及该延伸臂43，以单侧的该棘齿块431以及该滑动杆433配合单侧的该棘齿条113以及该凸轮114。
本发明除了上述第一、第二较佳实施例，是将所述的单向运动组件40结合在作为往复杆的上钉推杆23，使该上钉推杆23向后移动的过程中只能单向地向后移动，达到令血管施夹器的操作能够连贯的效果以外，如图11至图14所示的本发明第三较佳实施例，也可以进一步将该覆进推杆22作为一种往复杆，在该覆进推杆22结合另一单向运动组件40，达到该覆进推杆22往前移动的过程中，只能单向地向前移动而不能逆向动作的效果；第三实施例单以与第一较佳实施例相同的构造，或者以增设的另一单向运动组件40的相关构造，或者将两者合并使用都能完成与第一较佳实施例中所述相同的防止逆向动作以及容易安装的效果。
上述的本发明第三较佳实施例，如图11、图12所示是一种血管施夹器止 逆装置，与第一较佳实施例相同都包括一外壳10、一穿置在该外壳10的施夹构造20、两枢接在该外壳10的驱动组件30，以及一固设在该施夹构造20的单向运动组件40，上述第三较佳实施例的构造以及动作的方式皆与第一较佳实施例中所述的构造相同。第三较佳实施例与第一较佳实施例主要不同之处在于，第三较佳实施例在该施夹构造20的底部另外固设了一个单向运动组件40(以下皆称所述单向运动组件40)，对应所述单向运动组件40在该外壳10的底部设有防止所述单向运动组件40逆向动作的构造。
上述防止所述单向运动组件40逆向动作的构造，是在该底壳12内面的中间凹入形成一沿前、后方向直线延伸的滑块轨道121，对应该滑块轨道121的左、右两侧，在该底壳12的内面以左、右对称的形态凹入形成两活动槽122，两活动槽122分别是沿前、后方向延伸的长槽，在各活动槽122后端部的内侧壁面分别形成一棘齿条123，各棘齿条123是沿前后方向斜向延伸的单向棘齿条，在各活动槽122的中间分别形成一凸轮124，各凸轮124是沿前、后方向延伸的长条形块体，在各凸轮124周面的相反两侧分别形成相连的一第一导引面1241以及一第二导引面1242，各第一导引面1241较各第二导引面1242靠近各配合的该棘齿条123的延伸线，各第一导引面1241是倾斜面，各第二导引面1242是凸弧面。
在本较佳实施例中，该覆进推杆22是提供所述单向运动组件40结合的往复杆，当该覆进推杆22往复移动时是先朝该覆进推杆22的第一方向移动后再朝相反于第一方向的第二方向移动，该覆进推杆22的第一方向是前方而第二方向是后方。当第三较佳实施例的两驱动组件30被向内压时，可驱动该覆进推杆22向该覆进推杆22的第一方向也就是向前移动，过程中会带动所述单向运动组件40沿着该滑块轨道121向该覆进推杆22的第一方向也就是向前移动，接着当两驱动组件30被释放时，该覆进推杆22与所述单向运动组件40会向该覆进推杆22的第二方向也就是向后移动回复原位。
所述的单向运动组件40包括一滑块41、两弹性臂42以及两延伸臂43，该滑块41是以顶部固设在该覆进推杆22，该滑块41的底部可滑动地嵌设在该滑块轨道121，两弹性臂42是由该滑块41分别朝旁且朝后弯曲的弧形杆体，各弹性臂42的构造与形状使其具有可挠性，两延伸臂43分别由各弹性臂42的后端向后延伸，配合各活动槽122内的各棘齿条123，在各延伸臂43的自 由端形成一棘齿块431，各棘齿块431伸入各配合的该活动槽122内而可啮合各棘齿条123。
配合各第一导引面1241后端的位置，在各延伸臂43的中间朝各活动槽122的方向凸设一圆杆状的滑动杆433，各滑动杆433位于向前可进入、抵靠各第一导引面1241的位置。当各滑动杆433循环绕行各第一导引面1241以及各第二导引面1242时，各延伸臂43先向配合的该棘齿条123的方向摆动，使得各延伸臂43前端的各棘齿块431单向地啮合在配合的该棘齿条123向前滑动，当各滑动杆433绕行至各第二导引面1242时，各延伸臂43远离该棘齿条123，使得各延伸臂43前端的各棘齿块431由该棘齿条123的前端退开，再往后移动至可啮合该棘齿条123的位置，使得该覆进推杆22向前移动的过程中仅能单向移动，可避免该覆进推杆22逆向动作而让血管施夹器的操作不连贯。
以上所述仅为本发明的较佳实施例而已，并非用以限定本发明主张的权利范围，凡其它未脱离本发明所揭示的精神所完成的等效改变或修饰，均应包括在本发明的申请专利范围内。

Claims (6)

  1. 一种血管施夹器止逆装置，其特征在于，包括一外壳、一往复移动地穿置在该外壳中间的往复杆、至少一枢接在该外壳并链接驱动该往复杆的驱动组件，以及一固设在该往复杆的单向运动组件，其中：
    该往复杆进行往复移动时是依序朝向一第一方向以及一与该第一方向相反方向的第二方向移动；
    配合该单向运动组件在该外壳的内面中间形成一沿前后方向延伸的滑块轨道，对应该滑块轨道左、右两侧的至少一侧，分别在该外壳的内面形成一活动槽，在上述各活动槽位于该第二方向端部的侧壁面分别形成一棘齿条，在上述各活动槽的中间分别形成一凸轮，在各凸轮周面的相反两侧分别形成相连的一第一导引面以及一第二导引面，各第一导引面较各第二导引面靠近各棘齿条的延伸线；
    该单向运动组件设有一滑块，该滑块固设在该往复杆并且部分滑动地嵌设在该滑块轨道，配合各活动槽的位置由该滑块分别朝旁伸设一弯曲的弹性臂，在上述各弹性臂向该第二方向延伸形成一延伸臂，配合上述各棘齿条在上述各延伸臂的自由端形成一棘齿块，在上述各延伸臂的中间凸设一滑动杆，上述各滑动杆向该第一方向移动后进入上述各第一导引面，该单向运动组件随着该往复杆的往复移动令上述各滑动杆循环绕行上述各第一导引面以及上述各第二导引面，当上述各滑动杆抵靠上述各第一导引面向该第一方向滑动时，上述各棘齿块单向地啮合上述各棘齿条滑动，当上述各滑动杆抵靠上述各第二导引面滑动时，上述各棘齿块由上述各棘齿条退开并向该第二方向移动。
  2. 如权利要求1所述的血管施夹器止逆装置，其特征在于，所述的各第一导引面是倾斜面，各第一导引面与所述的各棘齿条的延伸线之间的距离，是由该第二方向朝向该第一方向逐渐缩窄的状态，所述的各第二导引面是凸弧面。
  3. 如权利要求2所述的血管施夹器止逆装置，其特征在于，配合所述的顶壳内面未形成所述的各活动槽处，在所述的各延伸臂的中间朝旁凸设一凸部。
  4. 如权利要求1至3中任一项所述的血管施夹器止逆装置，其特征在于，设有两个所述的活动槽，两活动槽位于所述的滑块轨道的左、右两侧。
  5. 如权利要求4所述的血管施夹器止逆装置，其特征在于，所述各棘齿条是分别形成在所述各活动槽位于该第二方向端部的内侧壁面。
  6. 如权利要求4所述的血管施夹器止逆装置，其特征在于，所述各棘齿条是分别形成在所述各活动槽位于该第二方向端部的外侧壁面。
PCT/CN2018/106630 2018-09-20 2018-09-20 血管施夹器止逆装置 WO2020056656A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/106630 WO2020056656A1 (zh) 2018-09-20 2018-09-20 血管施夹器止逆装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/106630 WO2020056656A1 (zh) 2018-09-20 2018-09-20 血管施夹器止逆装置

Publications (1)

Publication Number Publication Date
WO2020056656A1 true WO2020056656A1 (zh) 2020-03-26

Family

ID=69888128

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/106630 WO2020056656A1 (zh) 2018-09-20 2018-09-20 血管施夹器止逆装置

Country Status (1)

Country Link
WO (1) WO2020056656A1 (zh)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5951574A (en) * 1998-10-23 1999-09-14 Ethicon Endo-Surgery, Inc. Multiple clip applier having a split feeding mechanism
EP1378203A1 (en) * 1995-10-20 2004-01-07 United States Surgical Corporation Surgical clip applier
US20040097971A1 (en) * 2002-11-19 2004-05-20 Hughett J. David Automated-feed surgical clip applier and related methods
CN103519865A (zh) * 2013-10-29 2014-01-22 杭州铭众生物科技有限公司 一种用于结扎夹的自动结扎钳
CN104490448A (zh) * 2014-12-17 2015-04-08 成都快典科技有限公司 外科结扎用施夹钳
WO2018027788A1 (en) * 2016-08-11 2018-02-15 Covidien Lp Endoscopic surgical clip applier and clip applying systems
CN108378889A (zh) * 2017-02-02 2018-08-10 柯惠Lp公司 变内窥镜手术施夹钳
CN108392238A (zh) * 2013-08-27 2018-08-14 柯惠Lp公司 手术施夹器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1378203A1 (en) * 1995-10-20 2004-01-07 United States Surgical Corporation Surgical clip applier
US5951574A (en) * 1998-10-23 1999-09-14 Ethicon Endo-Surgery, Inc. Multiple clip applier having a split feeding mechanism
US20040097971A1 (en) * 2002-11-19 2004-05-20 Hughett J. David Automated-feed surgical clip applier and related methods
CN108392238A (zh) * 2013-08-27 2018-08-14 柯惠Lp公司 手术施夹器
CN103519865A (zh) * 2013-10-29 2014-01-22 杭州铭众生物科技有限公司 一种用于结扎夹的自动结扎钳
CN104490448A (zh) * 2014-12-17 2015-04-08 成都快典科技有限公司 外科结扎用施夹钳
WO2018027788A1 (en) * 2016-08-11 2018-02-15 Covidien Lp Endoscopic surgical clip applier and clip applying systems
CN108378889A (zh) * 2017-02-02 2018-08-10 柯惠Lp公司 变内窥镜手术施夹钳

Similar Documents

Publication Publication Date Title
US11278287B2 (en) Surgical clip applier with integrated clip counter
US10682146B2 (en) Surgical clip applier
CN106466197B (zh) 手术施夹器
US5431668A (en) Ligating clip applier
US4616650A (en) Apparatus for applying surgical clips
US4412539A (en) Repeating hemostatic clip applying instruments and multi-clip cartridges therefor
US20110066163A1 (en) Hemostatic Clip and Hemostatic Clip Operation Apparatus Using the Same
US5112343A (en) Endoscopic clip appliers
US20130172910A1 (en) Surgical clip applier
JPS5967943A (ja) 止血クリツプとりつけ装置
JP6873267B2 (ja) 安定化部材を有するクリップアプライヤ
JPS6352894B2 (zh)
CN103519865B (zh) 一种用于结扎夹的自动结扎钳
JPH012639A (ja) 外科手術用クリップの取付け装置
JP2014133130A (ja) 外科手術クリップアプライヤ
JPS60501993A (ja) 外科用留め具付け装置
TWI679002B (zh) 血管施夾器止逆裝置
TWI653025B (zh) 血管施夾裝置
WO2020056656A1 (zh) 血管施夹器止逆装置
TWI667988B (zh) 血管施夾裝置
WO2020000139A1 (zh) 血管施夹装置
TWI690295B (zh) 自動脫勾的血管施夾裝置
WO2020082362A1 (zh) 血管施夹装置
WO2020000140A1 (zh) 血管施夹装置
CN203885553U (zh) 末端执行器及外科手术器械

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18934188

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18934188

Country of ref document: EP

Kind code of ref document: A1