WO2020186378A1 - 自动脱勾的血管施夹装置 - Google Patents

自动脱勾的血管施夹装置 Download PDF

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Publication number
WO2020186378A1
WO2020186378A1 PCT/CN2019/078235 CN2019078235W WO2020186378A1 WO 2020186378 A1 WO2020186378 A1 WO 2020186378A1 CN 2019078235 W CN2019078235 W CN 2019078235W WO 2020186378 A1 WO2020186378 A1 WO 2020186378A1
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WIPO (PCT)
Prior art keywords
push rod
sleeve
nail
hole
pin
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PCT/CN2019/078235
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English (en)
French (fr)
Inventor
陈贵华
孙建伟
Original Assignee
台湾先进手术医疗器材股份有限公司
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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/CN2019/078235 priority Critical patent/WO2020186378A1/zh
Publication of WO2020186378A1 publication Critical patent/WO2020186378A1/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

Definitions

  • the present invention relates to a structure of a surgical instrument, in particular to a blood vessel clip applying device capable of retreating a nail pusher through an automatic detachment structure.
  • vascular clip applier a blood vessel clip applier
  • the above-mentioned method of using the vascular clip applier is mainly to extend the long rod-shaped clip applier unit of the vascular clip applier into the human body from the opening cut on the surface of the human body, and then operate the grip part to drive the clip applier to act to apply the clip
  • the clamping part at the front end of the unit clamps the blood vessel clamps that are sequentially transported inside the clamping part, pressing the blood vessel clamp on the blood vessel to close the blood vessel.
  • Taiwan Patent Application No. 104118985 Automatic Clip Applier
  • Taiwan Patent Application No. 201642812 is equipped with a clip applying unit inside the outer sleeve, a clamping part is provided at the front end of the clip applying unit, and the matching clamping part is provided with a clamping unit that pushes each vascular clip forward.
  • a first sleeve and a second sleeve are respectively sleeved at the front and rear positions of the rear end. The forward movement of the first sleeve is used to drive the clamping part to be clamped.
  • the front section of the first sleeve moves forward.
  • the second sleeve will be out of the state of moving with the first sleeve in the rear section of the first sleeve.
  • the second sleeve is driven and moved backward.
  • the movement of the sleeve back and forth can drive the clamping unit to push a blood vessel clamp into the inner side of the clamping part for clamping by the clamping part.
  • the clip applying unit of the above-mentioned existing automatic clip applier is installed in a holding unit when in use, and the trigger of the holding unit is pressed to link a linkage mechanism, and the first sleeve and the second sleeve are driven by the linkage mechanism.
  • the two sleeves perform all the above actions, but because the linkage mechanism needs to drive the first and second sleeves at the same time, the mutual influence of the movement strokes of the first and second sleeves must be considered, so that the trigger stroke, for example The position where the trigger is pivotally connected to the grip unit and the swing range of the trigger are limited. Except that the trigger cannot be designed as an efficient lever structure, a linkage mechanism is required to drive the second sleeve to move backward in the second half of the stroke.
  • the trigger structure design of the gripping unit is limited and the pressing force of the trigger is not applied. Average problem. Therefore, the design of the present invention uses a decoupling structure to cooperate with the spring so that all operations can be completed only by driving the first sleeve.
  • the trigger design of the matched grip unit is not limited and the user has a better experience when pressing the trigger. Effect.
  • an automatic detachable vascular clip applying device the structure of which includes:
  • An outer tube, a sliding sleeve is connected to the rear end of the outer tube, and a propelling pin long hole and a decoupling pin long hole are penetrated radially on the front and back sides of the sliding sleeve.
  • the front end of the hole forms a slope;
  • a pliers mouth nail assembly is inserted in the outer tube and is provided with a pliers mouth at the front end.
  • a pliers mouth is formed at the front end of the pliers mouth, and a track is formed behind the pliers mouth.
  • An upper nail pusher the upper nail pusher is inserted into the outer tube and a nail plate is provided at the front end, and the nail pusher can drive the most forward clamping nail into the clamping mouth by the nail plate.
  • the rear end of the nail push rod is respectively provided with a long hole behind the nail push rod and a hole of the nail push rod at the front and rear positions;
  • overrun push rod assembly the overrun push rod assembly is inserted in the outer tube and can drive the clamping mouth of the pliers to be clamped, and is matched with the position of the long hole behind the nail push rod, in the overrun push
  • the rear end of the rod is provided with an overhanging push rod hole, and a recess is formed inwardly on the side of the rear end of the covering push rod, and an undercut is formed adjacent to the rear side of the recess.
  • the undercut The edge on the same side as the opening of the notch is an inclined edge;
  • a joint drive assembly is respectively sleeved with a first sleeve and a second sleeve at the front and rear positions of the sliding sleeve, and a compressed state is set against the first sleeve and the second sleeve Drive spring;
  • the push pin passes through the long hole behind the nail push rod and is inserted in the cover push rod hole;
  • the second sleeve penetrates a second positioning pin
  • the second positioning pin hole is a long hole extending in the same direction as the tangential direction of the sliding sleeve, a decoupling pin is movably inserted in the second positioning pin hole, and the decoupling pin passes through the decoupling pin long hole and The recess is inserted into the nail push rod hole, and the decoupling pin is hooked by the undercut.
  • the rear end of the nail push rod of the present invention is offset toward the inner side of the notch, so that the nail push rod hole is located in the range inside the notch, and the decoupling pin falls to the inner side of the notch.
  • the height of the barb is narrower than the depth of the front side of the recess.
  • the present invention penetrates a spring positioning pin hole at the rear end of the sliding sleeve, a spring positioning pin is inserted and fixed in the spring positioning pin hole, a spring hook hole is penetrated in the undercut, and the spring hook A cladding spring is provided between the hole and the spring positioning pin, so that the pushing pin abuts against the rear end of the long hole of the pushing pin.
  • the first sleeve is used to drive the overhang push rod forward through the push pin.
  • the undercut at the rear end of the oversaw push rod hooks the unhook pin, so the second sleeve and the upper nail can be driven at the same time The push rod advances together.
  • the decoupling pin When the first sleeve continues to advance, the decoupling pin will touch the inclined surface of the front end of the long hole of the decoupling pin and move, so it will automatically jump off the barb, and the drive spring will return In the original state and drive the second sleeve to move backwards, so that the first sleeve is gradually moving forward to clamp the jaws of the jaws, the nail push rod can advance and retreat once into the jaws Clamp nails to complete the clamping operation of the vascular clamping device.
  • the present invention feeds the clamping nail into the clamping nozzle and clamps the clamping nozzle, it benefits from the automatic decoupling structure between the first and second sleeves, so it only needs to drive the first sleeve forward. It can complete all the operations of the overlay push rod and the nail push rod.
  • the present invention When the present invention is installed in the grip unit, it only needs to drive the first sleeve to complete all actions, so that the trigger of the grip unit of the present invention can be free from the limitation of driving two sleeves at the same time.
  • the trigger pivot point and the motion range are designed according to requirements, and since the force of the second sleeve to be driven backward is provided by the drive spring, it has nothing to do with the force of the trigger. Therefore, the user presses the trigger to drive the first sleeve. There is no sudden resistance, so it can apply force steadily, providing users with a better clip application experience.
  • Figure 1 is a perspective view of a preferred embodiment of the present invention
  • Figure 2 is an exploded view of a preferred embodiment of the present invention
  • Figure 3 is an exploded view of the coupling drive assembly of the preferred embodiment of the present invention.
  • Figure 4 is a top view of a preferred embodiment of the present invention.
  • Figure 5 is a bottom view of a preferred embodiment of the present invention.
  • Fig. 6 is a schematic diagram of the implementation action in the latter part of the preferred embodiment of the present invention.
  • Fig. 7 is a schematic diagram of the implementation action of pushing the nail pusher in the preferred embodiment of the present invention.
  • FIG. 8 is a schematic diagram of the implementation action of driving the clamping nozzle to clamp in a preferred embodiment of the present invention.
  • Fig. 9 is a partial cross-sectional view of the preferred embodiment of the present invention installed in the holding unit.
  • the present invention provides an automatic detachment of blood vessel clip applier, which includes an outer tube 10 and a pliers mouth inserted in the outer tube 10
  • the nailing assembly 20 a nailing push rod 30 passing through the outer tube 10
  • an overlying push rod assembly 40 passing through the outer tube 10
  • an engagement drive connected to the rear end of the outer tube 10
  • Component 50 of which:
  • the outer tube 10 is a circular elongated tube body extending in the front-to-rear direction. At the rear end of the outer tube 10, an outer tube fixing elongated hole 11 is penetrated along the radial direction of the outer tube 10, and the outer tube fixing elongated hole 11 is Long hole extending in the front and rear direction.
  • the pliers mouth nailing assembly 20 is fixed in the outer tube 10 with a pliers mouth rod 21, the pliers mouth rod 21 is a long piece body extending in the front and rear direction, the pliers mouth rod The rear end of 21 passes through the rear end of the outer tube 10 backwards, and a long hole 211 of the jaw pull rod is penetrated at the rear end of the jaw pull rod 21, which corresponds to the position of the fixed long hole 11 of the outer tube.
  • a pliers mouth rod fixing hole 212 is inserted through the pull rod 21.
  • a pliers mouth 22 is connected to the front end of the pliers mouth pull rod 21.
  • the front end of the pliers mouth 22 penetrates the front end of the outer tube 10 and is formed at the front end of the pliers mouth 22
  • a gripping mouth portion 221 two gripping mouth ribs 222 are formed on the left and right sides of the bottom surface of the gripping mouth portion 221, and a nail groove 23 is fixed on the top surface of the gripping mouth rod 21, and the nail groove 23 extends in the front-to-rear direction
  • a rail 231 extending in the front-rear direction is formed in the nail groove 23, the front end of the rail 231 is facing the rear end of the clamping mouth portion 221, and a stop portion 232 is formed on the top side of the front end of the rail 231
  • a plurality of nail pusher positioning holes 233 are arranged on the bottom surface of the nail groove 23 in an evenly spaced manner.
  • a nail pusher 25 is slidably provided in the rail 231.
  • a nail pusher 25 is provided at the rear end of the bottom and the rear side of the top.
  • Positioning elastic piece 251 and a pushing elastic piece 252 the free end of the positioning elastic piece 251 is clamped against one of the nail pusher positioning holes 233 for positioning, and the free end of the pushing elastic piece 252 faces upward and backward Extending the nail groove 23, a stopper 234 protrudes upward on the front side of the top of the nail pusher 25.
  • the width of the stopper 234 is narrower than the width of the stopper 232, so that the stopper 232 can
  • the stopper 234 is blocked to prevent the nail pusher 25 from moving forward from the rail 231, and the front end of the nail pusher 25 is used to push the rearmost nail 24.
  • the nail push rod 30 is a long strip extending in the front and rear direction.
  • the nail push rod 30 is inserted into the outer tube 10 and abuts against the top surface of the nail groove 23.
  • the front half of 30 is provided with a plurality of advancing holes 31 in an evenly spaced arrangement from front to back.
  • the free end of the advancing elastic piece 252 of the nail pusher 25 is located in one of the advancing holes 31 of the plurality of advancing holes 31.
  • the front end of the push rod 30 is provided with a nail plate 32, the rear end of the nail push rod 30 penetrates the rear end of the outer tube 10 backwards, and the rear end of the nail push rod 30 is respectively penetrated in the front and rear positions
  • An upper nail push rod rear long hole 33 and an upper nail push rod hole 34, the upper nail push rod rear long hole 33 is a long hole extending in the front-to-rear direction, the upper nail push rod rear long hole 33 and the jaw pull rod.
  • the positions of the elongated holes 211 overlap up and down, corresponding to the position of the outer tube fixing elongated hole 11, the upper nail pusher 30 is penetrated with an upper nail pusher front long hole 35, and the upper nail pusher front long hole 35 is located in the In front of the rear long hole 33 of the upper nail pusher, the above-mentioned jaw pull rod fixing hole 212 is located below the front end of the front long hole 35 of the upper nail pusher.
  • the overlying push rod assembly 40 is provided with an overlying push rod 41 in the outer tube 10.
  • the overlying push rod 41 is a long strip extending in the front-to-rear direction and abuts against the bottom surface of the jaw pull rod 21 ,
  • the rear end of the cover push rod 41 penetrates backwards out of the rear end of the outer tube 10, and a cover is pierced at the rear end of the cover push rod 41 to match the position of the long hole 33 behind the nail push rod.
  • the push rod hole 411 corresponds to the position of the long hole 11 of the outer tube.
  • the push rod 41 is provided with a long hole 412 for the push rod.
  • the above-mentioned jaw pull rod fixing hole 212 is located in the long hole of the push rod.
  • a hook piece 413 extends backward at the rear end of the covering push rod 41, and a recess 414 is recessed inwardly on the side of the hook piece 413.
  • the front and rear positions of the rod hole 34 are located within the range of the notch 414, and the rear end of the nail pusher 30 is offset toward the inner side of the notch 414, so that the nail pusher hole 34 is located inside the notch 414 within the range, an undercut 415 is formed at the rear end of the hook piece 413 adjacent to the rear side of the notch 414.
  • the height of the undercut 415 is narrower than the depth of the front side of the notch 414.
  • the edge on the same side of the opening of the notch 414 is an inclined edge, and a spring hook hole 416 is inserted through the undercut 415.
  • a jaw clamp 42 is combined with the front end of the overrun push rod 41.
  • the jaw clamp 42 is an elongated block extending in the front-to-rear direction.
  • a top of the jaw clamp 42 is formed
  • a clamping groove 421 is opened at the front, and the front end of the clamping groove 421 is sleeved on the rear ends of the two clamping nozzle ribs 222.
  • the connecting drive assembly 50 is provided with a sliding sleeve 51.
  • the sliding sleeve 51 is a round tube body extending in the front-to-rear direction and includes two half-tube shells A that are buckled up and down to match the shape of the outer tube fixing long hole 11.
  • An insert 511 is formed on opposite sides of the inner peripheral surface of the front end of the outer tube 10, and the insert 511 is inserted into the outer tube fixing long hole 11 for positioning, so that the front end of the sliding sleeve 51 is sleeved and fixed on the outer tube 10.
  • the rear end of the sliding sleeve 51 is connected to the rear end of the outer tube 10, the sliding sleeve 51 is provided with the insert 511 through a fixed pin hole 512, and the fixed plug hole 512 penetrates A fixed pin 52 is set, the fixed pin 52 passes through the front end of the front long hole 35 of the upper nail push rod and the front end of the long hole 412 covering the push rod, and the middle of the fixed pin 52 penetrates the jaw pull rod
  • the jaw pull rod fixing hole 212 of 21 fixes the jaw pull rod 21 in the outer tube 10.
  • the sliding sleeve 51 Cooperating with the positions of the long hole 33 on the back of the nail push rod, the long hole 211 of the jaw pull rod and the position of the push rod hole 411, the sliding sleeve 51 penetrates a long hole 513 of the push pin in the radial direction.
  • the hole 513 is an elongated hole extending in the front-rear direction.
  • the sliding sleeve 51 penetrates a decoupling pin long hole 514 in the radial direction, the decoupling pin long hole 514 It is a long hole extending in the front-rear direction, and an inclined surface 515 is formed at the front end of the long hole 514 of the decoupling pin.
  • a first sleeve 53 capable of moving back and forth is sleeved at the position where the sliding sleeve 51 is provided with the propelling pin long hole 513.
  • a first positioning pin hole 531 is penetrated in the first sleeve 53 in the radial direction.
  • the first positioning pin hole 531 is inserted and fixed with a push pin 54 which passes through the long hole 33 behind the upper nail push rod and the long hole 211 of the jaw pull rod, and the push pin 54 is inserted in the pusher
  • the push rod hole 411 of the rod 41 can be driven by the push pin 54 to drive the push rod 41 to advance.
  • a second sleeve 55 that can move back and forth is sleeved at the position where the sliding sleeve 51 is provided with the long hole 514 of the decoupling pin.
  • the first sleeve 53 and the second sleeve A compressed drive spring 501 is provided abutting between the sleeves 55, and a second positioning pin hole 551 is penetrated in the radial direction of the second sleeve 55.
  • the second positioning pin hole 551 is the extension direction of the sliding sleeve. 51. Long holes with the same tangential direction.
  • a decoupling pin 56 is inserted into the second positioning pin hole 551.
  • the decoupling pin 56 can be arranged in the second positioning pin hole 551 along the extension direction of the second positioning pin hole 551. When moving, the decoupling pin 56 passes through the decoupling pin long hole 514 and the notch 414, and the decoupling pin 56 is inserted into the nail push rod hole 34 at the rear end of the nail push rod 30.
  • the decoupling pin 56 is leaning against the inner side of the recess 414, so that the undercut 415 covering the rear end of the push rod 41 hooks the decoupling pin 56 to keep the drive spring 501 in a compressed state .
  • the overrun push rod 41 is driven forward by the first sleeve 53, since the decoupling pin 56 is hooked by the undercut 415, the nail push rod 30 combined with the decoupling pin 56 will be connected with the The overhang push rod 41 of the undercut 415 advances together.
  • the decoupling pin 56 advances to the inclined surface 515, it will move along the inclined surface 515 and detach from the undercut 415, and then the second sleeve 55 is restored to its shape
  • the driving spring 501 is pushed back by the rear end position of the first sleeve 53 to produce the action of being unhooked and driven backward.
  • the second sleeve 55 moving backward relative to the first sleeve 53 will be released
  • the hook pin 56 drives the nail push rod 30 to move backward, so that the nail push rod 30 moves back and forth once during the continuous advancement of the first sleeve 53.
  • a spring positioning pin hole 516 is penetrated at the rear end of the sliding sleeve 51.
  • the spring positioning pin hole 516 penetrates the rear end of the two halves of the shell A, and a fixing is sleeved on the rear end of the two halves of the shell A.
  • a sleeve 57, a pin hole 571 penetrates through the fixing sleeve 57, a spring positioning pin 58 is inserted into the plug hole 571, and the spring positioning pin 58 is inserted into the spring positioning pin hole 516, after the push rod 41 is covered
  • An intrusion spring 59 is hooked between the spring hook hole 416 and the spring positioning pin hole 516 at the end, so that the push pin 54 abuts against the rear end of the push pin long hole 513.
  • the first sleeve and the second sleeve 55 are driven by a driving mechanism, such as the grip unit of an existing automatic clip applier, but the preferred embodiment is driven
  • a driving mechanism such as the grip unit of an existing automatic clip applier
  • the driving mechanism of the example action is not limited to the existing holding unit, as long as it is a mechanism that can drive the overrun push rod 41 and the nail push rod 30 in a manner consistent with this preferred embodiment, it can drive this preferred embodiment. example.
  • a compressed drive spring 501 is set against the first sleeve 53 that controls the overhang push rod 41 and the second sleeve 55 that controls the nail push rod 30 to cooperate with the overturn
  • the undercut 415 at the rear end of the push rod 41 can hook or make the decoupling pin 56 automatically decouple, so that the second sleeve 55 can be pushed back by the drive spring 501 and drive the upper nail during the advancement of the first sleeve 53
  • the retracted structure of the push rod 30 is not only applied to the blood vessel clip applier of the first preferred embodiment described above, but also can be applied to other joysticks that also have the nail push rod 30 and the overlaid push rod 41.
  • part of the sliding sleeve 51 is installed in the grip unit 60 of the automatic clip applier, so that the outer tube 10 passes forward out of the grip
  • the unit 60 is provided with a trigger 61 in the holding unit 60.
  • the trigger 61 is pivotally connected to a connecting rod 62.
  • the top end of the connecting rod 62 is pivotally connected to a driving seat 63 embedded and combined with the first sleeve 53.
  • the connecting rod 62 will drive the driving seat 63 and the first sleeve 53 to move forward.
  • the first sleeve 53 uses the push pin 54 to drive the push rod 41 to move forward, and the push rod 41 moves forward.
  • the decoupling pin 56 and the second sleeve 55 that are hooked by the undercut 415 at the rear end of the push rod 41 move forward together with the first sleeve 53 to make the nail push rod 30 advances together with the overrun push rod 41.
  • the decoupling pin 56 advances to the inclined surface 515, it will move along the inclined surface 515 and automatically escape the undercut 415.
  • the drive spring 501 will return to its shape and While the intrusion push rod 41 continues to move forward, the second sleeve 55 is driven to move backward relative to the rear end of the first sleeve 53, so that the second sleeve 55 drives the nail push rod with the decoupling pin 56 30 moves backward.
  • the nail push rod 30 automatically moves back and forth once.
  • the grip unit 60 is driven by an external force.

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  • 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

一种自动脱勾的血管施夹装置，是在一外管(10)的前端设有一钳嘴(22)，在钳嘴(22)后方设有多个夹钉(24)，在外管(10)分别穿置用于控制钳嘴(22)夹合的覆进推杆(41)与推进夹钉(24)进入钳嘴(22)的上钉推杆(30)，在外管(10)后端的滑套管(51)分别套设用于控制覆进推杆(41)与上钉推杆(30)的第一套管(53)与第二套管(55)，在第一套管(53)、第二套管(55)之间抵靠一压缩状态的驱动弹簧(501)，在覆进推杆(41)与第二套管(55)之间形成可自动脱勾的构造，在第一套管(53)受驱动前进的过程中，第二套管(55)可因脱勾而被驱动弹簧(501)驱动向后移动，由于操作仅需驱动第一套管(53)即可完成所有动作，因此配合握持单元(60)使用时扳机(61)的转动幅度设计不受限制且施力按压扳机(61)具有较佳的体验。

Description

自动脱勾的血管施夹装置 技术领域
本发明涉及一种手术器械的构造，尤其涉及一种能够通过自动脱勾构造而使上钉推杆后退的血管施夹装置。
背景技术
在腹腔镜手术的进行中，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单元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施夹单元动作，以施夹单元前端的夹持部夹合依次输送到夹持部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。
现有的血管施夹器在手术中使用时是将前端长杆状的施夹单元伸入人体内，例如中国台湾专利申请案号第104118985号《自动施夹器》发明专利申请案(公开号第201642812号)，是在外套管的内部设有施夹单元，在施夹单元前端设有夹持部，配合夹持部设有推动各血管夹向前的进夹单元，在该施夹单元后端部的前、后位置各套设一第一套管以及一第二套管，利用第一套管前移的动作带动该夹持部夹合，第一套管前移过程的前段会带动第二套管往前移动，第二套管会在第一套管前移过程的后段脱离与第一套管同动的状态，这时第二套管受驱动而后移，利用第二套管前后移动的动作可带动进夹单元推进一血管夹进入该夹持部的内侧供该夹持部夹合。
上述现有的自动施夹器的施夹单元使用时是安装在一握持单元，按压该握持单元的扳机连动一连杆机构，通过连杆机构驱动所述的第一套管以及第二套管进行上述的所有动作，但由于该连杆机构需要同时驱动第一、第二套管，必须考虑第一、第二套管的移动行程的相互影响，因此使得扳机的动作行程，例如扳机枢接在握持单元的位置以及扳机摆动的幅度受限，除了不能将扳机设计为有效率的杠杆构造以外，需要通过连杆机构在行程的后半段带动第二套管向后移动的构造，也让使用者无法流畅地按压扳机施力。整体来说，由于现有的自动施夹器的施夹单元几乎都是以扳机控制所有操作杆或套 管动作的设计，很难避免上述扳机动作设计受限制的问题。
发明内容
由于现有施夹单元安装在握持单元使用时是以一连杆机构同时带动施夹单元的第一、第二套管动作，因此造成握持单元的扳机构造设计受限且按压扳机施力不平均的问题。为此，本发明设计以脱勾的构造配合弹簧令所有操作仅需驱动第一套管即可完成，达到配合的握持单元的扳机设计不受限且使用者施力按压扳机时体验较佳的效果。
为达到上述目的，本发明提供一种自动脱勾的血管施夹装置，其构造包括：
一外管，在该外管的后端连接一滑套管，在该滑套管的前、后两侧各沿径向贯穿一推进销长孔以及一脱勾销长孔，在该脱勾销长孔的前端形成一斜面；
一钳嘴上钉组件，是穿置在该外管内并且在前端设有一钳嘴，在该钳嘴的前端形成一夹嘴部，在该夹嘴部的后方形成一轨道，在该轨道内由前至后接连设有两个以上的夹钉；
一上钉推杆，该上钉推杆穿置在该外管内且前端设有一拨钉片，该上钉推杆以该拨钉片能够驱动最前方的该夹钉进入该夹嘴部，在该上钉推杆后端部的前后位置分别穿设一上钉推杆后长孔以及一上钉推杆孔；
一覆进推杆组件，该覆进推杆组件穿置在该外管内并且能够驱动该钳嘴的该夹嘴部夹合，配合该上钉推杆后长孔的位置，在该覆进推杆的后端部穿设一覆进推杆孔，在该覆进推杆的后端侧旁朝内凹入形成一凹口，接邻该凹口的后侧形成一倒勾，该倒勾与该凹口开口同侧的边缘为倾斜边缘；以及
一衔接驱动组件，是在该滑套管的前后位置分别套设一第一套管以及一第二套管，在该第一套管以及该第二套管之间抵靠设有一压缩状态的驱动弹簧；在该第一套管结合一推进销，该推进销穿过该上钉推杆后长孔并且插设在该覆进推杆孔；在该第二套管贯穿一第二定位销孔，该第二定位销孔是延伸方向与该滑套管切线方向同向的长孔，在该第二定位销孔活动地穿置一脱勾销，该脱勾销穿过该脱勾销长孔以及该凹口而插设在该上钉推杆孔，该脱勾销被该倒勾勾住。
进一步，本发明该上钉推杆的后端向该凹口的内侧方向偏移，使得该上钉推杆孔位于该凹口内侧的范围内，令该脱勾销落至该凹口的内侧。
进一步，本发明该倒勾的高度窄于该凹口前侧的深度。
更进一步，本发明在该滑套管的后端贯穿一弹簧定位销孔，在该弹簧定位销孔插设固定一弹簧定位销，在该的倒勾穿设一弹簧勾孔，在该弹簧勾孔与该弹簧定位销之间勾扣设有一覆进弹簧，使得该推进销抵靠在该推进销长孔的后端。
本发明使用时，是以第一套管通过推进销带动该覆进推杆前进，过程中由于该覆进推杆后端的倒勾勾住脱勾销，因此能同时带动第二套管以及上钉推杆一同前进，当第一套管持续前进的过程中，脱勾销会触碰到该该脱勾销长孔前端的斜面而移动，因此自动地由倒勾处跳脱，这时该驱动弹簧回复原状并且驱动该第二套管向后移动，使得该第一套管往前逐渐使钳嘴的夹嘴部夹合的过程中，该上钉推杆能前进后退一次向该夹嘴部内送入夹钉，完成血管施夹装置的施夹操作。
与现有技术相比，本发明的效果在于：
由于本发明将夹钉送入夹嘴部以及使夹嘴部夹合的动作，受益于第一、第二套管之间的自动脱勾的构造，因此仅需要往前驱动第一套管即可完成对覆进推杆以及上钉推杆的所有操作。当本发明安装在握持单元使用时，仅需要驱动第一套管即可完成所有动作的构造，使配合本发明的握持单元的扳机能不受以往需要同时驱动两处套管的限制，能依照需求进行扳机枢接点与动作幅度的设计，并且由于第二套管被往后驱动的力量是由驱动弹簧提供，与扳机的施力没有关系，因此用户按压扳机驱动第一套管的过程中不会突然受到阻力，因此能够平稳地施力，提供使用者更佳的施夹操作体验。
附图说明
图1是本发明较佳实施例的立体图；
图2是本发明较佳实施例的分解图；
图3是本发明较佳实施例的衔接驱动组件的分解图；
图4是本发明较佳实施例的俯视图；
图5是本发明较佳实施例的仰视图；
图6是本发明较佳实施例后段的实施动作示意图；
图7是本发明较佳实施例推动该推钉器的实施动作示意图；
图8是本发明较佳实施例带动该夹嘴部夹合的实施动作示意图；
图9是本发明较佳实施例安装在握持单元的部分剖面图。
符号说明：
10外管                   11外管固定长孔
20钳嘴上钉组件           21钳嘴拉杆
211钳嘴拉杆长孔          212钳嘴拉杆固定孔
22钳嘴                   221夹嘴部
222夹嘴肋条              23钉槽
231轨道                  232挡止部
233推钉器定位孔          234挡块
24夹钉                   25推钉器
251定位弹片              252推进弹片
30上钉推杆               31推进孔
32拨钉片                 33上钉推杆后长孔
34上钉推杆孔             35上钉推杆前长孔
40覆进推杆组件           41覆进推杆
411覆进推杆孔            412覆进推杆长孔
413勾片部                414凹口
415倒勾                  416弹簧勾孔
42钳嘴夹合器             421夹合槽
50衔接驱动组件           501驱动弹簧
51滑套管                 511嵌块
512固定插销孔            513推进销长孔
514脱勾销长孔            515斜面
516弹簧定位销孔          52固定插销
53第一套管               531第一定位销孔
54推进销                 55第二套管
551第二定位销孔          56脱勾销
57固定套                 571插销孔
58弹簧定位销             59覆进弹簧
A半管壳                  60握持单元
61扳机                   62连杆
63驱动座
具体实施方式
为能详细了解本发明的技术特征及实用效果，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5所示的本发明较佳实施例，本发明提供一种自动脱勾的血管施夹装置，包括一外管10、一穿置在该外管10内的钳嘴上钉组件20、一穿置在该外管10内的上钉推杆30、一穿置在该外管10内的覆进推杆组件40，以及一连接在该外管10后端的衔接驱动组件50，其中：
该外管10是沿前后方向延伸的圆形长管体，在该外管10的后端部沿该外管10的径向贯穿一外管固定长孔11，该外管固定长孔11是沿前后方向延伸的长孔。
请参看图2、图3所示，该钳嘴上钉组件20在该外管10内固设一钳嘴拉杆21，该钳嘴拉杆21是沿前后方向延伸的长片体，该钳嘴拉杆21的后端向后穿出该外管10的后端，在该钳嘴拉杆21的后端穿设一钳嘴拉杆长孔211，对应该外管固定长孔11的位置，在该钳嘴拉杆21穿设一钳嘴拉杆固定孔212，在该钳嘴拉杆21的前端连接设有一钳嘴22，该钳嘴22的前端穿出该外管10的前端，在该钳嘴22的前端形成一夹嘴部221，在该夹嘴部221底面的左右两侧形成两夹嘴肋条222，在该钳嘴拉杆21的顶面固定设有一钉槽23，该钉槽23是沿前后方向延伸的长槽，在该钉槽23内形成一沿前后方向延伸的轨道231，该轨道231的前端正对该夹嘴部221的后端，在该轨道231前端部的顶侧形成一挡止部232，在该钉槽23的底面以前后等间隔排列的方式设有多个推钉器定位孔233。
在该轨道231内由前至后接连设有两个以上的夹钉24，在该轨道231内滑动设有一推钉器25，该推钉器25底部的后端以及顶部的后侧各设有一定位弹片251以及一推进弹片252，该定位弹片251的自由端卡抵在多个推钉器定 位孔233的其中一推钉器定位孔233定位，该推进弹片252的自由端朝上并朝后伸出该钉槽23，在该推钉器25顶部的前侧朝上凸出形成一挡块234，该挡块234的宽度较该挡止部232的宽度窄，使得该挡止部232能阻挡该挡块234以避免该推钉器25向前移出该轨道231，该推钉器25的前端用于顶推最后方的夹钉24。
该上钉推杆30是沿前后方向延伸的长条形片体，该上钉推杆30穿置在该外管10内并贴靠在该钉槽23的顶面，在该上钉推杆30的前半部以前后等间隔的排列方式设有多个推进孔31，该推钉器25的该推进弹片252的自由端位于多个推进孔31的其中一推进孔31内，在该上钉推杆30的前端设有一拨钉片32，该上钉推杆30的后端向后穿出该外管10的后端，在该上钉推杆30的后端部的前后位置分别穿设一上钉推杆后长孔33以及一上钉推杆孔34，该上钉推杆后长孔33是沿前后方向延伸的长孔，该上钉推杆后长孔33与该钳嘴拉杆长孔211的位置上下相叠，对应该外管固定长孔11的位置，在该上钉推杆30穿设一上钉推杆前长孔35，该上钉推杆前长孔35位于该上钉推杆后长孔33的前方，上述的钳嘴拉杆固定孔212位于该上钉推杆前长孔35的前端部下方。
该覆进推杆组件40是在该外管10内设有一覆进推杆41，该覆进推杆41是沿前后方向延伸的长条形片体并且贴靠在该钳嘴拉杆21的底面，该覆进推杆41的后端向后穿出该外管10的后端，配合该上钉推杆后长孔33的位置，在该覆进推杆41的后端部穿设一覆进推杆孔411，对应该外管固定长孔11的位置，在该覆进推杆41穿设一覆进推杆长孔412，上述的钳嘴拉杆固定孔212位于该覆进推杆长孔412的前端部上方，在该覆进推杆41的后端向后延伸一勾片部413，在该勾片部413的侧旁朝内凹入形成一凹口414，上述的上钉推杆孔34的前后位置位于该凹口414的范围内，该上钉推杆30的后端向该凹口414的内侧方向偏移，使得该上钉推杆孔34位于该凹口414内侧的范围内，接邻该凹口414的后侧在该勾片部413的后端形成一倒勾415，该倒勾415的高度窄于该凹口414前侧的深度且该倒勾415与该凹口414开口同侧的边缘为倾斜边缘，在该倒勾415穿设一弹簧勾孔416。
在该覆进推杆41的前端结合设有一钳嘴夹合器42，该钳嘴夹合器42是沿前后方向延伸的长条形块体，在该钳嘴夹合器42的顶部形成一于前方开口 的夹合槽421，该夹合槽421的前端套合在该两夹嘴肋条222的后端。
该衔接驱动组件50设有一滑套管51，该滑套管51是沿前后方向延伸的圆管体并包括两上下扣合的半管壳A，配合该外管固定长孔11的形状，在该外管10前端部内周面的相反两侧各形成一嵌块511，以该嵌块511嵌入该外管固定长孔11定位，使得该滑套管51的前端套合固定在该外管10的后端部，借此将该滑套管51连接在该外管10的后端，在该滑套管51设有该嵌块511处贯穿一固定插销孔512，在该固定插销孔512穿置一固定插销52，该固定插销52穿过该上钉推杆前长孔35的前端部以及该覆进推杆长孔412的前端部，该固定插销52的中间穿置在该钳嘴拉杆21的该钳嘴拉杆固定孔212，将该钳嘴拉杆21固设在该外管10内。
配合该上钉推杆后长孔33、该钳嘴拉杆长孔211以及该覆进推杆孔411的位置，在该滑套管51沿径向贯穿一推进销长孔513，该推进销长孔513是沿前后方向延伸的长孔，配合该上钉推杆孔34以及该凹口414的位置，在该滑套管51沿径向贯穿一脱勾销长孔514，该脱勾销长孔514是沿前后方向延伸的长孔，在该脱勾销长孔514的前端形成一斜面515。
在该滑套管51设有该推进销长孔513的位置套设一能够前后移动的第一套管53，在该第一套管53沿径向贯穿一第一定位销孔531，在该第一定位销孔531插设固定一推进销54，该推进销54穿过该上钉推杆后长孔33以及该钳嘴拉杆长孔211，该推进销54销插设在该覆进推杆41的该覆进推杆孔411，当该第一套管53前进时能通过该推进销54带动该覆进推杆41前进。
请参看图2至图5所示，在该滑套管51设有该脱勾销长孔514的位置套设一能够前后移动的第二套管55，在该第一套管53以及该第二套管55之间抵靠设有一压缩状态的驱动弹簧501，在该第二套管55沿径向贯穿一第二定位销孔551，该第二定位销孔551是延伸方向与该滑套管51切线方向同向的长孔，在该第二定位销孔551穿置一脱勾销56，该脱勾销56能够在第二定位销孔551内沿该沿该第二定位销孔551的延伸方向移动，该脱勾销56穿过脱勾销长孔514以及该凹口414，该脱勾销56插设在该上钉推杆30后端的该上钉推杆孔34。
请参看图6所示，该脱勾销56靠向该凹口414的内侧，使该覆进推杆41后端的该倒勾415勾住该脱勾销56，令该驱动弹簧501保持在压缩的状态。 当该覆进推杆41被该第一套管53带动前进时，由于该脱勾销56被该倒勾415勾住，因此与该脱勾销56结合的该上钉推杆30会与设有该倒勾415的该覆进推杆41一同前进，当该脱勾销56前进至该斜面515时，会沿着该斜面515移动并脱离该倒勾415，这时该第二套管55被回复形状的该驱动弹簧501由第一套管53的后端位置向后推，产生脱勾以及被向后驱动的动作，该相对第一套管53向后移动的第二套管55会以该脱勾销56带动该上钉推杆30向后移动，使该上钉推杆30在该第一套管53持续前进的过程中前后动作一次。当该覆进推杆41向后回复原位时，该第一套管53向后压缩抵靠在该第二套管55前的驱动弹簧501，并且使该倒勾415重新回到能勾住该脱勾销56的位置。
在该滑套管51的后端贯穿一弹簧定位销孔516，该弹簧定位销孔516穿设在该两半管壳A的后端，在该两半管壳A的后端套设一固定套57，在该固定套57贯穿一插销孔571，在该插销孔571穿置一弹簧定位销58，该弹簧定位销58插设在该弹簧定位销孔516，在该覆进推杆41后端的该弹簧勾孔416与该弹簧定位销孔516之间勾扣设有一覆进弹簧59，使得该推进销54抵靠在该推进销长孔513的后端。
当本发明上述第一较佳实施例使用时，是以驱动机构例如现有的自动施夹器的握持单元带动该第一套管以及该第二套管55动作，但带动本较佳实施例动作的驱动机构不限于现有的握持单元，只要是能以符合本较佳实施例运作方式驱动该覆进推杆41以及该上钉推杆30的机构，都能驱动本较佳实施例。本发明上述在控制该覆进推杆41的该第一套管53以及控制该上钉推杆30的该第二套管55之间抵靠设有一压缩状态的驱动弹簧501，配合该覆进推杆41后端的倒勾415能勾住或使该脱勾销56自动脱勾，使得该第一套管53前进过程中该第二套管55能被驱动弹簧501向后推动并且带动该上钉推杆30后缩的构造，除了应用在上述第一较佳实施例的血管施夹装置以外，也可以运用在其他同样也具有上钉推杆30以及覆进推杆41两种操纵杆来进行施夹操作的血管施夹装置。
请参看图9所示，本发明第一较佳实施例使用时是将滑套管51的部分安装在自动施夹器的握持单元60内，使该外管10向前穿出该握持单元60，在该握持单元60设有扳机61，该扳机61枢接一连杆62，该连杆62的顶端枢 接一与该第一套管53嵌设结合的驱动座63，当用户向后按压该扳机61时，会通过该连杆62带动该驱动座63以及该第一套管53向前移动。
请参看图6所示，当该第一套管53被驱动前进时，该第一套管53以该推进销54带动该覆进推杆41往前移动，在该覆进推杆41往前移动的过程中，被该覆进推杆41后端的该倒勾415勾住的该脱勾销56以及该第二套管55会与第一套管53一同往前移动，使该上钉推杆30与该覆进推杆41一同前进，当该脱勾销56前进至该斜面515时，会沿着该斜面515移动并且自动脱离该倒勾415，这时该驱动弹簧501会回复形状，并且在该覆进推杆41继续向前的同时驱动该第二套管55相对该第一套管53的后端向后移动，使得该第二套管55以该脱勾销56带动该上钉推杆30向后移动。使得该覆进推杆41前进的整个过程中，该上钉推杆30自动地进行前后移动一次的动作，过程中该第二套管55与该上钉推杆30的动作是自动进行不需要该握持单元60的外力驱动。
该上钉推杆30进行前后移动一次的动作时，请参看图7所示，该推进弹片252自由端所在的该推进孔31会前进，该推进孔31的后端缘会顶靠该推进弹片252的自由端，将该推钉器25一同向前推，使该推钉器25将最前端的一个夹钉24由后向前推至该夹嘴部221内，接着该上钉推杆30向后移动，使已向前移动的该推钉器25的该推进弹片252的自由端位于方才推动该推钉器25向前的该推进孔31的前一个推进孔31内。该覆进推杆41前进的过程中，请参看图8所示，当最前方的一个夹钉24被送至该夹嘴部221内时，该覆进推杆41持续向前推动该钳嘴夹合器42往前移动，以该钳嘴夹合器42的该夹合槽421紧迫两夹嘴肋条222靠紧的方式，使该夹嘴部221夹合该夹钉24。
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 (4)

  1. 一种自动脱勾的血管施夹装置，其特征在于，包括：
    一外管，在该外管的后端连接一滑套管，在该滑套管的前、后两侧各沿径向贯穿一推进销长孔以及一脱勾销长孔，在该脱勾销长孔的前端形成一斜面；
    一钳嘴上钉组件，是穿置在该外管内并且在前端设有一钳嘴，在该钳嘴的前端形成一夹嘴部，在该夹嘴部的后方形成一轨道，在该轨道内由前至后接连设有两个以上的夹钉；
    一上钉推杆，该上钉推杆穿置在该外管内且前端设有一拨钉片，该上钉推杆以该拨钉片能够驱动最前方的该夹钉进入该夹嘴部，在该上钉推杆后端部的前后位置分别穿设一上钉推杆后长孔以及一上钉推杆孔；
    一覆进推杆组件，该覆进推杆组件穿置在该外管内并且能够驱动该钳嘴的该夹嘴部夹合，配合该上钉推杆后长孔的位置，在该覆进推杆的后端部穿设一覆进推杆孔，在该覆进推杆的后端侧旁朝内凹入形成一凹口，接邻该凹口的后侧形成一倒勾，该倒勾与该凹口开口同侧的边缘为倾斜边缘；以及
    一衔接驱动组件，是在该滑套管的前后位置分别套设一第一套管以及一第二套管，在该第一套管以及该第二套管之间抵靠设有一压缩状态的驱动弹簧；在该第一套管结合一推进销，该推进销穿过该上钉推杆后长孔并且插设在该覆进推杆孔；在该第二套管贯穿一第二定位销孔，该第二定位销孔是延伸方向与该滑套管切线方向同向的长孔，在该第二定位销孔活动地穿置一脱勾销，该脱勾销穿过该脱勾销长孔以及该凹口而插设在该上钉推杆孔，该脱勾销被该倒勾勾住。
  2. 如权利要求1所述的自动脱勾的血管施夹装置，其特征在于，该上钉推杆的后端向该凹口的内侧方向偏移，使得该上钉推杆孔位于该凹口内侧的范围内，令该脱勾销落至该凹口的内侧。
  3. 如权利要求1或2所述的自动脱勾的血管施夹装置，其特征在于，该倒勾的高度窄于该凹口前侧的深度。
  4. 如权利要求3所述的自动脱勾的血管施夹装置，其特征在于，在该滑套管的后端贯穿一弹簧定位销孔，在该弹簧定位销孔插设固定一弹簧定位销，在该的倒勾穿设一弹簧勾孔，在该弹簧勾孔与该弹簧定位销之间勾扣设有一覆进弹簧，使得该推进销抵靠在该推进销长孔的后端。
PCT/CN2019/078235 2019-03-15 2019-03-15 自动脱勾的血管施夹装置 WO2020186378A1 (zh)

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US5833696A (en) * 1996-10-03 1998-11-10 United States Surgical Corporation Apparatus for applying surgical clips
CN105748129A (zh) * 2015-01-07 2016-07-13 柯惠Lp公司 可回收施夹器
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