WO2021037155A1 - 闭合驱动机构及包括其的医用吻合器 - Google Patents

闭合驱动机构及包括其的医用吻合器 Download PDF

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Publication number
WO2021037155A1
WO2021037155A1 PCT/CN2020/111794 CN2020111794W WO2021037155A1 WO 2021037155 A1 WO2021037155 A1 WO 2021037155A1 CN 2020111794 W CN2020111794 W CN 2020111794W WO 2021037155 A1 WO2021037155 A1 WO 2021037155A1
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WO
WIPO (PCT)
Prior art keywords
stapler
sliding block
closing driving
block
driving mechanism
Prior art date
Application number
PCT/CN2020/111794
Other languages
English (en)
French (fr)
Inventor
单腾
Original Assignee
天臣国际医疗科技股份有限公司
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
Priority claimed from CN201910806818.5A external-priority patent/CN112438764A/zh
Priority claimed from CN201921425066.XU external-priority patent/CN210990510U/zh
Application filed by 天臣国际医疗科技股份有限公司 filed Critical 天臣国际医疗科技股份有限公司
Priority to AU2020338904A priority Critical patent/AU2020338904B2/en
Priority to CA3151258A priority patent/CA3151258C/en
Priority to EP20857628.0A priority patent/EP4023170A4/en
Priority to BR112022002665A priority patent/BR112022002665A2/pt
Priority to US17/634,785 priority patent/US20220330938A1/en
Priority to KR1020227008268A priority patent/KR20220048001A/ko
Priority to JP2022512846A priority patent/JP7454652B2/ja
Publication of WO2021037155A1 publication Critical patent/WO2021037155A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115—Staplers for performing anastomosis in a single operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00407—Ratchet means

Definitions

  • the present disclosure relates to the technical field of medical devices, in particular to a closed driving mechanism and a medical stapler including the same.
  • Digestive tract diseases are one of the most common diseases in humans.
  • medical staplers are often used to replace the doctor's manual operation to anastomose physiological tissues such as the digestive tract.
  • Medical stapler is a common surgical instrument, most of which adopt axial internal binding method. During the operation, it forms an end-to-end or end-to-side anastomosis to the esophagus, stomach, intestine and other physiological tissues.
  • anastomosis two segments of tissue The restraint is contained in a medical stapler. After the firing is completed, a circular anastomosis is formed in the tissue, and the human body passage is reconstructed.
  • a medical stapler includes a medical stapler body, an operating handle movably connected to the medical stapler body, and a nail head matched with the body.
  • the nail head includes a nail cartridge and a nail anvil which are arranged oppositely.
  • the nail moves toward the tissue, and the tissue is anastomosed by forming the staple in the staple cartridge at the nail anvil assembly, and the cutter moves from the proximal side to the distal side of the stapler to cut the tissue.
  • the distal side and the proximal side are relative to the operator. The end closer to the operator is the proximal side, and the end farther from the operator, that is, the end closer to the surgical site is farther. End side.
  • the structure is relatively complicated, and during the process of firing the stapler, the closing pull tab may be displaced toward the distal side of the stapler, which affects the closing effect between the staple cartridge and the staple anvil. It has an adverse effect on the effect of surgery.
  • the existing closing drive mechanism after the stapler is fired, the staple cartridge and the staple anvil remain closed. After the doctor has completed the operation of the stapler, the doctor needs to pull back and push the knife lever so that the knife follows the knife groove. Return to the initial position. In the process of pulling back the cutting knife, if the staple cartridge and the anvil remain closed, the cutting knife will be resisted by the tissue between the staple cartridge and the anvil and cannot return to the initial position smoothly.
  • the purpose of the present disclosure is to provide a closing driving mechanism and a medical stapler including the same.
  • the position of the closing driving member when the nail head is closed is adjusted by the engagement of the holder and the first sliding block. After the stapler is fired, the holding member is separated from the first sliding block by the lifting action of the push block, and the closing driving member can move to open the nail head.
  • the embodiment of the present disclosure provides a closing driving mechanism for a medical stapler.
  • the closing driving mechanism includes a first sliding block, a holder, a closing driving part, and a push block.
  • the first fitting part of the first sliding block is located below the second fitting part of the holder, and the first fitting part and the second fitting part are The fitting part is fitted.
  • the second lifting part of the push block lifts up the first lifting part of the holder, and the second fitting part is lifted up And it is separated from the first fitting part.
  • the second lifting portion of the push block does not contact the first lifting portion of the holder.
  • the initial position of the first fitting portion is on the proximal side of the second fitting portion
  • the closing drive mechanism further includes a movable handle and a pressing member, and the initial position of the pressing member is located at The proximal side of the holder;
  • the first sliding block moves toward the distal side of the stapler, so that the first fitting part moves below the second fitting part, and the The pressing member moves toward the distal end of the stapler and presses the holder downward, so that the second fitting portion moves downward to be fitted with the first fitting portion, and the first sliding The block drives the closing driving member to move to the proximal side of the stapler to close the nail head.
  • the closing driving mechanism further includes an actuating rod, and the pressing member is provided on the distal side of the actuating rod.
  • the movable handle drives The actuating rod moves to the distal side of the stapler.
  • the holder includes a second slider and a third slider
  • the second slider includes the second fitting portion and the first lifting portion
  • the holder is held in the initial state.
  • the pressing member presses the third sliding block downwards, so that the third sliding block drives the second sliding block to move downwards.
  • a first biasing member is provided between the second slider and the third slider, and the first biasing member gives the second slider a downward biasing force.
  • the second lifting part of the push block when the staple head of the stapler is closed, the second lifting part of the push block does not contact the first lifting part of the second slider; or,
  • the third sliding block is provided with a containing groove inside, and the second sliding block is arranged in the containing groove.
  • a second biasing member is provided between the pushing block and the housing of the stapler, and the second biasing member gives the pushing block a downward biasing force
  • a third biasing member is provided on the proximal side of the closing driving member, and the third biasing member biases the closing driving member toward the distal side of the stapler. force.
  • the pushing block further includes an operating portion, and the first side of the operating portion of the pushing block protrudes outside the housing of the stapler.
  • the second lifting part of the pushing block is a lifting arm protruding from the second side of the operating part.
  • a fourth biasing member is provided between the holder and the housing of the stapler, and the fourth biasing member gives the holder a biasing force toward the upper side.
  • the first fitting part is a boss, and the second fitting part is a groove;
  • the first fitting part is a groove
  • the second fitting part is a boss
  • the embodiment of the present disclosure also provides a medical stapler, which includes the closed driving mechanism described above.
  • the present disclosure provides a closing driving mechanism for a medical stapler.
  • the position of the closing driving member is adjusted by the engagement of the holder and the first sliding block. Limit the movement to the distal side of the stapler when the stapler is fired, and after the stapler is fired, when the nail head needs to be opened, the push block is lifted upward, and the push block is lifted by the lifting effect of the push block.
  • the retaining member is separated from the first sliding block, and the position of the closing driving member is no longer restricted.
  • the closing driving member can return to the initial position, so that the staple cartridge and the anvil can be opened, and the cutter can be pulled back very smoothly.
  • Fig. 1 is a partial structural diagram of the stapler in the initial state of the first embodiment of the present disclosure
  • Figure 2 is a schematic view of the structure of Figure 1 with the stapler housing removed;
  • FIG. 3 is a schematic diagram of the positions of the first sliding block and the holder in the initial state of the first embodiment of the present disclosure
  • FIG. 4 is a perspective view of the first slider and the holder in the initial state of the first embodiment of the disclosure
  • FIG. 5 is a schematic diagram showing the structure of the cooperation of the holder and the push block in the initial state of the first embodiment of the disclosure
  • FIG. 6 is a partial structural diagram of the stapler when the nail head is closed according to the first embodiment of the disclosure
  • FIG. 7 is a structural diagram of the holder of the first slider when the nail head is closed according to the first embodiment of the disclosure.
  • FIG. 8 is a perspective view of the closed driving mechanism when the nail head is closed according to the first embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of the holder when the nail head is closed according to the first embodiment of the disclosure.
  • FIG. 10 is a structural schematic diagram of the holder, the push block and the first sliding block when the nail head is closed according to the first embodiment of the disclosure
  • FIG. 11 is a structural diagram of the push block when the nail head is closed according to the first embodiment of the disclosure.
  • FIG. 12 is a perspective view showing the cooperation of the holder and the first sliding block when the push block of the first embodiment is raised;
  • FIG. 13 is a schematic diagram showing the structure of the cooperation between the holder and the first sliding block when the push block of the first embodiment is lifted.
  • the present disclosure provides a closure driving mechanism for a medical stapler and a medical stapler including the staple cartridge.
  • the stapler includes a staple head and a stapler body, and a closing pull tab for closing the staple head is provided in the stapler body.
  • the closing driving mechanism is used for a medical stapler.
  • the closing driving mechanism includes a first sliding block, a holder, a closing driving member, and a push block.
  • the closing driving member is connected to the closing pull tab and can drive the The nail head opens and closes.
  • the closing driver has a closed position and an open position, when the closing driver is in the closed position, the nail head is closed, and when the closing driver is in the open position, the nail The head opens.
  • the first sliding block is connected to the closing driving member, the first sliding block includes a first fitting portion, the retaining member includes a second fitting portion and a first lifting portion that are connected to each other, and the pushing The block includes a second lifting part located below the first lifting part.
  • the closing driving member is held in the closed position, and the nail head is held in the closed state without accidentally opening.
  • the operator lifts the push block upwards, and the second lifting part of the push block lifts the first lifting part of the holder upwards.
  • the lifting part drives the second fitting part connected to it to lift up and disengage from the first fitting part. Therefore, the retaining member no longer restricts the position of the first sliding block, and thus does not restrict the position of the first sliding block.
  • the stapler includes a stapler body 1 and a nail head (not shown in the figure) located on the distal side of the stapler body 1.
  • the body 1 includes a housing 13 and a fixed handle 11.
  • the stapler body 1 is also provided with a closing pull tab 12 for closing and opening the nail head.
  • the closing driving mechanism includes a first sliding block 5, a holding member, a closing driving member 83, and a push block 4.
  • the first sliding block 5 is connected to the closing driving member 83, and the first sliding block 5 includes a first A fitting portion, the holder includes a second fitting portion and a first lifting portion 64 connected to each other, and the pushing block 4 includes a second lifting portion 41 located below the first lifting portion 64.
  • the distal side and the proximal side are relative to the operator, where the distal side refers to the end farther from the operator, and the proximal side refers to the end closer to the operator.
  • the distal side of the stapler body 1 is the left end in the figure
  • the right end of the stapler body 1 is the right end in the figure
  • the distal side of the actuating rod 2 is the end in the figure.
  • the proximal side of the actuating rod 2 is the right end in the figure.
  • the upward and upward directions refer to the side facing away from the rack 22 for the actuating rod 2, and the downward and downward directions are opposite to it, for example, in FIG. 2 In the viewing angle, the upward direction refers to the upper end in the figure.
  • the first fitting portion of the first slider 5 is a first groove 51
  • the second fitting portion of the holder is a boss 61
  • the first fitting portion may be a boss
  • the second fitting portion may be a groove.
  • the holder includes a second slider 6 and a third slider 7.
  • the third slider 7 is provided with a containing groove 71 inside, and the The second sliding block 6 is disposed in the accommodating groove 71.
  • the second sliding block 6 includes the boss 61 and the first lifting portion 64.
  • a first biasing member is arranged between the second slider 6 and the third slider 7, and the first biasing member gives the second slider 6 a downward biasing force.
  • the third slider 7 and the housing of the stapler are directly provided with a fourth biasing member, and the fourth biasing member gives the third slider 7 an upward biasing force.
  • the first biasing member is a first compression spring 74 disposed between the inner wall of the accommodating groove 71 and the second slider 6, and the fourth biasing member is a A second compression spring 75 at the bottom of the third slider 7.
  • the present disclosure is not limited to this, and in other alternative embodiments, the first biasing member and the fourth biasing member may also adopt other elastic structures such as tension springs, metal elastic sheets, etc., respectively.
  • the pushing block 4 further includes an operating portion 42, and the second lifting portion 41 of the pushing block 4 is a lifting arm protruding from the second side of the operating portion 42.
  • the first side of the operating portion 42 of the push block 4 protrudes outside the housing of the stapler, and the doctor can directly operate the operating portion 42 of the push block 4 on the outside of the instrument.
  • a second biasing member is arranged between the pushing block 4 and the housing of the stapler, and the second biasing member gives the pushing block 4 a downward biasing force.
  • the second biasing member is a third compression spring 43 arranged above the push block 4.
  • the present disclosure is not limited to this.
  • the second biasing member may also adopt other elastic structures such as compression springs, metal elastic sheets, and the like.
  • the push block 4 is provided with a first guide portion 44, and the housing 13 (the housing 13 is shown in FIG. 1) is adapted to be provided with a second guide portion (not shown) ,
  • the first guide portion 44 and the second guide portion are each a boss and a groove structure, and the push block 4 is arranged along the direction of the third compression spring 43. That is, as shown in FIG. 10, due to the guiding action of the first guide portion 44 and the second guide portion, the push block 4 can move in the direction A in the figure or the direction opposite to the direction A in the figure.
  • the bottom of the push block 4 is the side facing away from the third compression spring 43 and is pressed against the housing 13 so that the push block 4 does not leave the housing.
  • the proximal side of the closing driving member 83 is provided with a third biasing member, and the third biasing member gives the closing driving member 83 a biasing force toward the distal side of the stapler.
  • the third biasing member is a third compression spring 84 provided on the proximal side of the closing driving member 83.
  • the third biasing member is also Other elastic structures such as tension springs and metal shrapnel can be used.
  • the first sliding block 5 is connected to the closing driving member 83 through a steering assembly.
  • the steering assembly includes a steering support beam 82 and a draw rope 81.
  • the steering support beam 82 is fixed to the housing 13.
  • the steering support beam 82 is configured as a pulley to reduce the time when the draw rope 81 moves. resistance.
  • the pulley 82 is located on the proximal side of the first sliding block 5, the pull rope 81 is sleeved on the outside of the pulley 82, and the pull rope 81 is connected to the first sliding block 5 and the Close between the driver 83.
  • two ends of the pull cord 81 are respectively provided with fixed ends.
  • the proximal side of the first sliding block 5 may be provided with a second groove 52, and a fixed end of the pull cord 81 is detachably installed in the second groove 52.
  • the other fixed end of the pull cord 81 is detachably connected to the closing driving member 83.
  • the closing drive mechanism further includes a movable handle 3 and a pressing member, and the pressing member is a flange 23 provided on the distal side of the actuating rod 2.
  • the initial position of the first groove 51 of the first slider 5 is located at the proximal side of the boss 61 of the holder, and the initial position of the pressing member is at the proximal end of the holder side.
  • the steering assembly converts the movement of the first sliding block 5 toward the distal side of the stapler into the movement of the closing driving member 83 toward the proximal side of the stapler, so that the closing driving member 83 moves from the open position Move to the closed position, and then pull the closing pull tab 12 to move to the proximal side of the stapler, thereby closing the staple head of the stapler.
  • the third compression spring 84 is compressed and deformed by the force of the closing driving member 83.
  • the pawl 31 on the movable handle 3 contacts the propelling tooth 21 on the actuating rod 2, and pushes the propelling tooth 21 toward the distal end of the stapler, so that The actuating rod 2 also moves toward the distal side of the stapler, and the actuating rod 2 drives the flange 23 to move toward the distal side of the stapler until it comes into contact with the third slider 7, and then moves downwards.
  • the third slider 7 drives the second slider 6 to move downward, and the boss 61 of the second slider 6 and the first slider 5 of the first slider 5
  • the groove 51 is fitted to obstruct the movement of the first slider 5 to the proximal side of the stapler, to keep the closing driver 83 in the closed position, and to maintain the stability of the nail head when it is closed.
  • the third slider 7 compresses the second compression spring 75 downward, This causes the second compression spring 75 to be compressed and deformed.
  • the first lifting portion 64 of the second sliding block 6 is slightly in contact with the second lifting portion 41 of the push block 4, but the force applied by the second lifting portion 41 to the first lifting portion 64 is not sufficient to
  • the distal side of the flange 23 is a first inclined surface 24 that slopes upward from its proximal side to the distal side, and the proximal side of the third slider 7 is The first inclined surface of the flange 24 is matched with the first inclined surface 72 of the third sliding block.
  • the flange 23 can contact and press the third slider 7 more smoothly when moving to the distal side of the stapler.
  • the distal side of the first sliding block 5 is a first sliding first inclined surface 53 inclined upward from its distal side to the proximal side.
  • the first inclined surface 53 is an inclined surface inclined downward from the proximal side to the distal side thereof, and the proximal side surface of the boss 61 of the second slider 6 is matched with the first inclined surface 53 of the first slider Boss slope 62.
  • first groove 51 of the first sliding block 5 has a shape corresponding to the shape of the first boss 61, that is, the proximal side of the first groove 51 is from the distal side to the proximal end.
  • the first sliding block and the second inclined surface 54 are inclined upwardly on the side.
  • the distal side of the first groove 51 of the first slider 5 is formed as a first stop surface 55, and correspondingly, the distal side of the boss 61 of the second slider 6 is formed as a second stop.
  • the surface 63, the first stop surface 55 and the second stop surface 63 are all vertical surfaces. In the initial position, the first stop surface 55 and the second stop surface 63 are spaced apart. Through the cooperation of the two vertical surfaces of the first stop surface 55 and the second stop surface 63, when the boss 61 is located in the first groove 51, the first sliding block 5 is blocked from moving to the proximal side.
  • the actuating rod 2 is provided with a firing member 25.
  • the firing member 25 can fire the stapler during the movement toward the distal end of the stapler to make the anastomosis Anastomosis and cutting tissue.
  • the boss 61 of the second slider 6 is always kept in the first groove 51 of the first slider 5, so as to remain in the firing process of the stapler. In, the stability of the nail head closure.
  • the stapler When the stapler is fired, if the staple head needs to be opened to separate the staple cartridge and the staple anvil, the holder needs to be separated from the first slider 5. That is, in this embodiment, the convex of the second slider 6 The table 61 is disengaged from the first groove 51 of the first slider 5.
  • the push block 4 compresses the third compression spring 43 to produce compression deformation, and the second slider 6 is lifted upward by the push block 4 to separate the boss 61 and the second slider 6
  • the closing driving member 83 As shown in FIG. 13, after the second slider 6 no longer restricts the position of the first slider 5, under the action of the deformation restoring force of the third compression spring 84 toward the distal end of the stapler, the closing driving member 83
  • the pull cord 81 is pulled to move toward the distal side of the stapler, and under the steering action of the steering support beam 82, the movement of the closing driving member 83 drives the second sliding block 6 to move toward the proximal side of the stapler.
  • the closing driver 83 drives the closing pull tab 12 to move to the distal side of the stapler, the staple head of the stapler can be opened, the staple anvil and the staple cartridge are separated, the tissue between the staple anvil and the staple cartridge can be released, and more Pull the cutter back smoothly.
  • Figures 1-13 only show the specific structure of the closing drive mechanism of a specific embodiment of the present disclosure, and are not intended to limit the protection scope of the present disclosure.
  • the various components can be modified in various ways, and all fall within the protection scope of the present disclosure.
  • the positional relationship between the second slider 6 and the third slider 7 is not limited to the way of accommodating grooves, the third slider 7 can be provided with a guide groove, and the second slider 6 can be embedded in the guide groove, and An elastic member can be arranged in the guide groove, so that when the first slider 7 moves downward, the second slider 6 is driven to move downward, and when the first slider 7 is fixed, the second slider 6 can be relative to the first slider at the same time.
  • the slider 7 has an upward movement trend.
  • the structure of the second lifting part of the pushing block 4 is not limited to the lifting arm, and other structures such as bumps and round tables can also be used.
  • the pressing member is not limited to the flange structure on the actuating rod 2, and the firing member 25 can also be used to press the third slider 7, or other boss structures that move to the distal side when the movable handle 3 is held are added as the pressing member. Pieces and so on.
  • the present disclosure provides a closing driving mechanism for a medical stapler.
  • the position of the closing driving member is adjusted by the engagement of the holder and the first sliding block. Limit the movement to the distal side of the stapler when the stapler is fired, and after the stapler is fired, when the nail head needs to be opened, the push block is lifted upward, and the push block is lifted by the lifting effect of the push block.
  • the retaining member is separated from the first sliding block, and the position of the closing driving member is no longer restricted.
  • the closing driving member can return to the initial position, so that the staple cartridge and the anvil can be opened, and the cutter can be pulled back very smoothly.

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Abstract

一种闭合驱动机构及包括其的医用吻合器，闭合驱动机构包括第一滑块（5）、保持件、闭合驱动件（83）和推块（4），第一滑块（5）与闭合驱动件（83）相连接，第一滑块（5）包括第一嵌合部，保持件包括相连接的第二嵌合部和第一抬升部（64），推块（4）包括位于第一抬升部（64）下方的第二抬升部（41）。吻合器的钉头部闭合时，第一滑块（5）的第一嵌合部位于保持件的第二嵌合部的下方，且第一嵌合部与第二嵌合部嵌合，在保持件的作用下，闭合驱动件（83）被保持在闭合位置，在吻合器击发完成后，向上抬起推块（4），推块（4）的第二抬升部向上抬起保持件的第一抬升部，第二嵌合部向上抬起而与第一嵌合部脱离，闭合驱动件（83）失去了保持件的保持作用而可以向远端侧运动，从而打开所述钉头部。

Description

闭合驱动机构及包括其的医用吻合器 技术领域
本揭露涉及医疗器械技术领域，具体涉及一种闭合驱动机构及包括其的医用吻合器。
背景技术
消化道疾病是人类高发的疾病之一，在治疗过程中，常使用医用吻合器代替医生的手工操作对消化道等生理组织进行吻合。医用吻合器是一种常见的外科手术器械，大多采用轴向内装订方式，在手术时对食管、胃、肠道等生理组织形成端对端的、或者端对侧的吻合，吻合时两段组织内敛收容于医用吻合器内，击发完成后在组织上形成圆形吻合口，重建了人体通道。
现有技术中，医用吻合器包括医用吻合器本体、活动连接所述医用吻合器本体的操作把手以及与所述本体配合的钉头部。所述钉头部包括相对设置的钉仓和钉砧。在手术时，首先握持活动把手，通过闭合驱动机构拉动钉头部的闭合拉片向吻合器的近端侧运动，从而将钉仓和钉砧闭合后，再次握持操作把手，可以推动吻合钉向组织运动，通过钉仓中的吻合钉在钉砧组件处的成型，将组织吻合，同时切刀从吻合器的近端侧向远端侧运动，而切割组织。在本揭露中，远端侧和近端侧是相对于操作者来说的，距离操作者较近的一端为近端侧，距离操作者较远的一端，即更靠近手术位置的一端为远端侧。
现有的闭合驱动机构中，结构较为复杂，并且在击发吻合器的过程中，闭合拉片可能会有向吻合器远端侧方向的位移，而影响钉仓和钉砧之间的闭合效果，对手术效果有不利影响。此外，现有的闭合驱动机构中，在吻合器击发完成后，钉仓和 钉砧仍然保持闭合，医生在操作吻合器完成后，医生需要回拉推刀杆，使得切刀沿着切刀槽返回至初始位置，在回拉切刀的过程中，如果钉仓和钉砧仍保持闭合，切刀会受到钉仓和钉砧之间的组织的阻力而无法顺畅地返回至初始位置。
发明内容
针对现有技术中的问题，本揭露的目的在于提供一种闭合驱动机构及包括其的医用吻合器，通过保持件和第一滑块的嵌合对钉头部闭合时闭合驱动件的位置进行限定，并且在吻合器击发完成后，通过推块的抬升作用使得保持件与第一滑块脱离，闭合驱动件可以运动以打开钉头部。
本揭露实施例提供一种闭合驱动机构，用于医用吻合器，所述闭合驱动机构包括第一滑块、保持件、闭合驱动件和推块，所述第一滑块与所述闭合驱动件相连接，所述第一滑块包括第一嵌合部，所述保持件包括相连接的第二嵌合部和第一抬升部，所述推块包括位于所述第一抬升部下方的第二抬升部；
所述吻合器的钉头部闭合时，所述第一滑块的第一嵌合部位于所述保持件的第二嵌合部的下方，且所述第一嵌合部与所述第二嵌合部嵌合，此状态下向上抬起所述推块时，所述推块的第二抬升部向上抬起所述保持件的第一抬升部，所述第二嵌合部向上抬起而与所述第一嵌合部脱离。
在一些实施例中，初始状态下，所述推块的第二抬升部不与所述保持件的第一抬升部接触。
在一些实施例中，所述第一嵌合部的初始位置位于所述第二嵌合部的近端侧，所述闭合驱动机构还包括活动把手和按压件，所述按压件的初始位置位于所述保持件的近端侧；
在初始状态下握持所述活动把手时，所述第一滑块向吻合器的远端侧方向运 动，使得所述第一嵌合部运动至所述第二嵌合部的下方，所述按压件向所述吻合器的远端侧方向运动并向下按压所述保持件，使得所述第二嵌合部向下运动而与所述第一嵌合部嵌合，所述第一滑块带动所述闭合驱动件向所述吻合器的近端侧运动，以闭合所述钉头部。
在一些实施例中，所述闭合驱动机构还包括致动杆，所述按压件设置于所述致动杆的远端侧，在初始状态下握持所述活动把手时，所述活动把手驱动所述致动杆向所述吻合器的远端侧运动。
在一些实施例中，所述保持件包括第二滑块和第三滑块，所述第二滑块包括所述第二嵌合部和所述第一抬升部，在初始状态下握持所述活动把手时，所述按压件向下按压所述第三滑块，使得所述第三滑块带动所述第二滑块向下运动。
在一些实施例中，所述第二滑块与所述第三滑块之间设置有第一偏置件，所述第一偏置件给所述第二滑块一朝向下方的偏置力；
在所述第一嵌合部和所述第二嵌合部嵌合的状态下，向上抬起所述推块时，所述第二滑块相对于所述第三滑块向上运动，所述第一偏置件产生变形。
在一些实施例中，所述吻合器的钉头部闭合时，所述推块的第二抬升部不与所述第二滑块的第一抬升部接触；或，
所述吻合器的钉头部闭合时，所述推块的第二抬升部与所述保持件的第一抬升部接触，但所述第二抬升部给所述第二滑块的作用力不足以驱使所述第一偏置件产生变形。
在一些实施例中，所述第三滑块的内部设置有容置槽，所述第二滑块设置于所述容置槽中。
在一些实施例中，所述推块与所述吻合器的壳体之间设置有第二偏置件，所述 第二偏置件给所述推块一朝向下方的偏置力；
向上抬起所述推块时，所述第二偏置件发生变形。
在该实施例中，所述闭合驱动件的近端侧设置有第三偏置件，所述第三偏置件给所述闭合驱动件一朝向所述吻合器的远端侧方向的偏置力。
在一些实施例中，所述推块还包括操作部，所述推块的操作部的第一侧突出于所述吻合器的壳体外侧。
在一些实施例中，所述推块的第二抬升部为突出于所述操作部的第二侧的抬升臂。
在一些实施例中，所述保持件与所述吻合器的壳体之间设置有第四偏置件，所述第四偏置件给所述保持件一朝向上方的偏置力。
在一些实施例中，所述第一嵌合部为凸台，所述第二嵌合部为凹槽；或
所述第一嵌合部为凹槽，所述第二嵌合部为凸台。
本揭露实施例还提供一种医用吻合器，包括所述的闭合驱动机构。
本揭露所提供的闭合驱动机构及包括其的医用吻合器具有如下优点：
本揭露提供了一种用于医用吻合器的闭合驱动机构，在吻合器击发前，通过闭合驱动件拉动钉头部闭合之后，通过保持件和第一滑块的嵌合对闭合驱动件的位置进行限定，避免吻合器击发时闭合拉片向吻合器的远端侧方向运动，并且在吻合器击发完成后，需要将钉头部打开时，向上抬起推块，通过推块的抬升作用使得保持件与第一滑块脱离，而不再限制闭合驱动件的位置，闭合驱动件可以返回至初始位置，从而使得钉仓和钉砧可以打开，可以十分顺畅地拉回切刀。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述，本揭露的其它特 征、目的和优点将会变得更明显。
图1是本揭露第一实施例的初始状态下的吻合器的局部结构示意图；
图2是图1中去除吻合器壳体的结构示意图；
图3是本揭露第一实施例的初始状态下第一滑块和保持件的位置示意图；
图4为本揭露第一实施例的初始状态下第一滑块和保持件的立体图；
图5为本揭露第一实施例的初始状态下保持件和推块配合的结构示意图；
图6为本揭露第一实施例的钉头部闭合时吻合器的局部结构示意图；
图7为本揭露第一实施例的钉头部闭合时第一滑块的保持件的结构示意图；
图8为本揭露第一实施例的钉头部闭合时闭合驱动机构的立体图；
图9为本揭露第一实施例的钉头部闭合时保持件的结构示意图；
图10为本揭露第一实施例的钉头部闭合时保持件与推块和第一滑块配合的结构示意图；
图11为本揭露第一实施例的钉头部闭合时推块的结构示意图；
图12为本揭露第一实施例的抬升推块时保持件和第一滑块配合的立体图；
图13为本揭露第一实施例的抬升推块时保持件和第一滑块配合的结构示意图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本揭露将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。在图中相同的附图标记表示相同或类似的结构，因而将省略对它们的重复描述。
为了解决现有技术中的技术问题，本揭露提供了一种用于医用吻合器的闭合驱 动机构以及包括该钉仓的医用吻合器。所述吻合器包括钉头部和吻合器本体，所述吻合器本体中设置有用于闭合所述钉头部的闭合拉片。所述闭合驱动机构用于医用吻合器，所述闭合驱动机构包括第一滑块、保持件、闭合驱动件和推块，所述闭合驱动件与所述闭合拉片相连接，可以驱动所述钉头部打开和闭合。具体地，定义所述闭合驱动件具有闭合位置和打开位置，所述闭合驱动件在所述闭合位置时，所述钉头部闭合，所述闭合驱动件在所述打开位置时，所述钉头部打开。所述第一滑块与所述闭合驱动件相连接，所述第一滑块包括第一嵌合部，所述保持件包括相连接的第二嵌合部和第一抬升部，所述推块包括位于所述第一抬升部下方的第二抬升部。
所述吻合器的钉头部闭合时，所述第一滑块的第一嵌合部位于保持件的第二嵌合部的下方，且所述第一嵌合部与第二嵌合部嵌合，在所述保持件的作用下，所述闭合驱动件被保持在所述闭合位置，所述钉头部保持在闭合状态而不会意外张开。在所述吻合器击发完成后，需要打开钉头部时，操作者向上抬起推块，所述推块的第二抬升部向上抬起所述保持件的第一抬升部，所述第一抬升部带动与其相连接的所述第二嵌合部向上抬起而与所述第一嵌合部脱离，由此所述保持件不再对第一滑块的位置进行限定，也就不会限制与第一滑块相连接的闭合驱动件的位置，闭合驱动件失去了保持件的保持作用而可以移动到打开位置，从而打开所述钉头部，此时可以十分顺畅地拉回切刀。
下面结合图1～13具体介绍本揭露在具体实施方式中的闭合驱动机构和吻合器的结构。
如图1～5所示，在本揭露第一实施例中，所述吻合器包括吻合器本体1和位于吻合器本体1的远端侧的钉头部(图中未示出)，吻合器本体1包括壳体13和 固定把手11，吻合器本体1的内部还设置有用于闭合钉头部和打开钉头部的闭合拉片12，闭合拉片12在初始状态下时，钉头部打开，闭合拉片12向吻合器近端侧运动时，钉头部闭合，闭合拉片12再向吻合器远端侧运动时，钉头部可以重新打开。所述闭合驱动机构包括第一滑块5、保持件、闭合驱动件83和推块4，所述第一滑块5与所述闭合驱动件83相连接，所述第一滑块5包括第一嵌合部，所述保持件包括相连接的第二嵌合部和第一抬升部64，所述推块4包括位于所述第一抬升部64下方的第二抬升部41。
在本揭露中，远端侧和近端侧是相对于操作者来说的，其中，远端侧指的是距离操作者较远的一端，近端侧指的是距离操作者较近的一端。例如，在图1和图2的视角中，吻合器本体1的远端侧为图中左边一端，吻合器本体1的右端侧为图中右边一端，致动杆2的远端侧为图中左边一端，致动杆2的近端侧为图中右边一端。此外，在本揭露中，上方和向上的方向指的是对于致动杆2来说，朝向背离所述齿条22的一侧，下方和向下的方向与之相反，例如，在图2的视角中，向上的方向是指图中上方一端。
在该实施例中，所述第一滑块5的所述第一嵌合部为第一凹槽51，所述保持件的第二嵌合部为凸台61。在其他可替代的实施方式中，也可以第一嵌合部为凸台，所述第二嵌合部为凹槽。下面以该实施例的第一嵌合部和第二嵌合部的结构为例进行说明。
如图3和图4所示，在该实施例中，所述保持件包括第二滑块6和第三滑块7，所述第三滑块7的内部设置有容置槽71，所述第二滑块6设置于所述容置槽71中。所述第二滑块6包括所述凸台61和所述第一抬升部64。所述第二滑块6与所述第三滑块7之间设置有第一偏置件，所述第一偏置件给所述第二滑块6一朝向下方的 偏置力。所述第三滑块7和所述吻合器的壳体直接设置有第四偏置件，所述第四偏置件给所述第三滑块7一朝向上方的偏置力。在该实施例中，所述第一偏置件为设置于所述容置槽71的内壁与所述第二滑块6之间的第一压簧74，所述第四偏置件为设置于所述第三滑块7的底部的第二压簧75。但本揭露不限于此，在其他可替代的实施方式中，第一偏置件和第四偏置件也可以分别采用拉簧、金属弹片等其他弹性结构。
如图5所示，所述推块4还包括操作部42，所述推块4的第二抬升部41为突出于所述操作部42的第二侧的抬升臂。所述推块4的操作部42的第一侧突出于所述吻合器的壳体外侧，医生可以直接在器械的外侧操作推块4的操作部42。所述推块4与所述吻合器的壳体之间设置有第二偏置件，所述第二偏置件给所述推块4一朝向下方的偏置力。在该实施例中，所述第二偏置件为设置于所述推块4上方的第三压簧43。但本揭露不限于此，在其他可替代的实施方式中，第二偏置件也可以采用压簧、金属弹片等其他弹性结构。如图10和图11所示，所述推块4设有第一导向部44，壳体13(壳体13示于图1中)与之适应地设有第二导向部(图未示)，所述第一导向部44及所述第二导向部互为凸台和凹槽结构，且使得所述推块4沿所述第三压簧43的方向设置。即如图10所示，由于第一导向部44和第二导向部的导向作用，推块4可以沿图中A方向或与A方向相反的方向运动。所述推块4的底部即背离所述第三压簧43的一侧，抵持于所述壳体13，使得所述推块4不脱离所述壳体。
进一步地，所述闭合驱动件83的近端侧设置有第三偏置件，所述第三偏置件给所述闭合驱动件83一朝向所述吻合器的远端侧方向的偏置力。在该实施例中，所述第三偏置件为设置于所述闭合驱动件83的近端侧的第三压簧84，在其他可替 代的实施方式中，所述第三偏置件也可以采用拉簧、金属弹片等其他弹性结构。
所述第一滑块5通过一个转向组件与闭合驱动件83相连接。所述转向组件包括转向支撑梁82和拉绳81，所述转向支撑梁82固设于壳体13，优选地，所述转向支撑梁82设为滑轮，以减少所述拉绳81运动时的阻力。所述滑轮82位于所述第一滑块5的近端侧，所述拉绳81套设于所述滑轮82的外部，且所述拉绳81连接于所述第一滑块5和所述闭合驱动件83之间。优选地，所述拉绳81的两端分别设有固定端。第一滑块5的近端侧可以设置有第二凹槽52，所述拉绳81的一固定端可拆卸地安装于第二凹槽52中。所述拉绳81的另一固定端可拆卸地连接于所述闭合驱动件83。通过拉绳81和滑轮82的结构，可以将第一滑块5的运动转化为反向的驱动力传递给闭合驱动件83。
在该实施例中，所述闭合驱动机构还包括活动把手3和按压件，所述按压件为设置于致动杆2的远端侧的凸缘23。在初始状态下，所述第一滑块5的第一凹槽51的初始位置位于所述保持件的凸台61的近端侧，所述按压件的初始位置位于所述保持件的近端侧。
如图6～11所示，在初始状态下握持所述活动把手3时，所述活动把手3的旋转运动带动连杆32向吻合器的远端侧方向运动，进而使得所述连杆32推动所述第一滑块5向吻合器的远端侧方向运动，使得所述第一凹槽51运动至所述凸台61的下方。所述转向组件将所述第一滑块5向吻合器的远端侧方向的运动转化为闭合驱动件83向吻合器的近端侧方向的运动，使得所述闭合驱动件83从张开位置运动至闭合位置，进而拉动闭合拉片12向吻合器的近端侧运动，从而闭合所述吻合器的钉头部。如图6所示，此时，所述第三压簧84受到所述闭合驱动件83的作用力而产生压缩变形。
同时，在初始状态下活动把手3在被握持而旋转时，活动把手3上的卡爪31与致动杆2上的推进齿21接触，并向吻合器远端方向推动推进齿21，使得致动杆2也向吻合器远端侧方向运动，所述致动杆2带动凸缘23向所述吻合器的远端侧方向运动至与所述第三滑块7相接触后，向下按压所述第三滑块7，所述第三滑块7带动所述第二滑块6向下运动，所述第二滑块6的凸台61与所述第一滑块5的第一凹槽51嵌合，以阻碍所述第一滑块5向吻合器的近端侧的运动，将闭合驱动件83保持在闭合位置，保持钉头部闭合时的稳定性。如图6和图7所示，此时，由于所述凸缘23对所述第三滑块7的向下的压力，所述第三滑块7向下压缩所述第二压簧75，使得所述第二压簧75产生压缩变形。优选地，在初始状态下，所述第二滑块6的第一抬升部64与所述推块4的第二抬升部41之间设有一定距离，即第二滑块6的第一抬升部64与推块4的第二抬升部41不接触；如图10和图11所示，在握持所述活动把手3，使得钉头部保持闭合时状态时，所述第二滑块6的凸台61与所述第一滑块5的第一凹槽51嵌合，此时所述第二滑块6的第一抬升部64与所述推块4的第二抬升部41之间设有微量距离，即第一抬升部64与第二抬升部41不接触，但是需保证向上抬起推块4时，推块4在向上运动过程中会接触并抬升第一抬升部64，或者所述第二滑块6的第一抬升部64与所述推块4的第二抬升部41有轻微接触，但是第二抬升部41给第一抬升部64的作用力不足以压缩第一压簧74产生变形。如此设置，以使得在不施加推力至所述推块4时，所述第二抬升部41的设置不阻碍所述第二滑块6的凸台61与所述第一滑块5的第一凹槽51嵌合，保证稳定的闭合。
如图8所示，所述凸缘23的远端侧面为从其近端侧边向远端侧边向上倾斜的凸缘第一斜面24，所述第三滑块7的近端侧面为与所述凸缘第一斜面24相配合的 第三滑块第一斜面72。通过凸缘第一斜面24和第三滑块第一斜面72的相互引导作用，凸缘23在向吻合器远端侧运动时，可以更加顺畅地接触并压迫第三滑块7。
如图4和图9所示，所述第一滑块5的远端侧面为从其远端侧边向近端侧边向上倾斜的第一滑块第一斜面53，所述第一滑块第一斜面53为从其近端侧向远端侧向下倾斜的一斜面，所述第二滑块6的凸台61的近端侧面为与所述第一滑块第一斜面53配合的凸台斜面62。通过第一滑块第一斜面53和凸台斜面62的相互引导作用，可以更好地引导第二滑块6的凸台61进入到第一滑块5的第一凹槽51中。进一步地，所述第一滑块5的第一凹槽51具有与第一凸台61的形状相适应的形状，即第一凹槽51的近端侧面为从其远端侧边向近端侧边向上倾斜的第一滑块第二斜面54。
所述第一滑块5的第一凹槽51的远端侧面形成为第一止挡面55，与此对应地，第二滑块6的凸台61的远端侧面形成为第二止挡面63，第一止挡面55和第二止挡面63均为垂直面。在初始位置时，所述第一止挡面55与所述第二止挡面63间隔设置。通过第一止挡面55和第二止挡面63这两个垂直面的配合，在凸台61位于第一凹槽51中时，阻挡第一滑块5向近端侧运动。
在钉头部闭合之后，在图6中示出的吻合器的状态下，再次握持活动把手3时，活动把手3被握持旋转，其卡爪31与齿条22接触，并通过推动齿条22而继续推动致动杆2向吻合器的远端方向运动，致动杆2上设置有击发件25，击发件25在向吻合器远端方向的运动过程中可以击发吻合器，使吻合器吻合和切割组织。而在吻合器的击发过程中，在凸缘23的按压作用下，第二滑块6的凸台61一直保持在第一滑块5的第一凹槽51中，从而保持在吻合器击发过程中，钉头部闭合的稳定性。
在吻合器击发完成时，如果需要打开钉头部，使得钉仓和钉砧分离，则需要使得保持件与第一滑块5脱离，即在该实施例中，使得第二滑块6的凸台61与第一滑块5的第一凹槽51脱离。
在图10中示出的钉头部闭合时闭合驱动机构各个部件的配合状态下，医生沿图10中A箭头示出的方向抬起推块4的操作部42，使得推块4向上运动时，推块4的第二抬升部41向上抬起第二滑块6的第一抬升部64，使得第二滑块6向上运动。如图12和图13所示，在第二滑块6被推块4向上抬起时，由于第一滑块7仍在凸缘23的按压下高度保持不变，第二滑块6相对于第一滑块7具有向上运动的趋势而压缩第一压簧74产生变形，第二滑块6的凸台61向上运动而与第一滑块5的第一凹槽51分离。同时，在推块4的抬起过程中，推块4压缩第三压簧43产生压缩变形，第二滑块6被推块4向上抬起，以分离第二滑块6的凸台61和第一滑块5的第一凹槽51。如图13所示，在第二滑块6不再对第一滑块5的位置进行限定后，在第三压簧84朝向吻合器远端侧的变形恢复力的作用下，闭合驱动件83会拉动拉绳81向吻合器的远端侧方向运动，而在转向支撑梁82的转向作用下，闭合驱动件83的运动驱动所述第二滑块6向吻合器的近端侧运动。此时，闭合驱动件83驱动闭合拉片12向吻合器的远端侧运动，吻合器的钉头部可以打开，钉砧和钉仓分离，可以释放钉砧和钉仓之间的组织，更顺畅地将切刀拉回。
图1～13仅示出了本揭露一个具体实施例的闭合驱动机构的具体结构，而不作为本揭露的保护范围的限制。在其他可替代的实施方式中，其中的各个部件可以进行各种变形，均属于本揭露的保护范围之内。例如，第二滑块6和第三滑块7的位置关系不限于采用容置槽的方式，第三滑块7上可以开设导槽，第二滑块6可以嵌设于导槽中，并且导槽中可以设置弹性件，使得第一滑块7向下运动时带动第二滑 块6向下运动，而第一滑块7固定不动时，第二滑块6同时可以相对于第一滑块7有向上的运动趋势。推块4的第二抬升部的结构也不限于抬升臂，也可以采用凸块、圆台等其他结构。按压件也不限于致动杆2上的凸缘结构，也可以采用击发件25压迫第三滑块7，或增设其他的在活动把手3握持时向远端侧运动的凸台结构作为按压件等等。
本揭露所提供的闭合驱动机构及包括其的医用吻合器具有如下优点：
本揭露提供了一种用于医用吻合器的闭合驱动机构，在吻合器击发前，通过闭合驱动件拉动钉头部闭合之后，通过保持件和第一滑块的嵌合对闭合驱动件的位置进行限定，避免吻合器击发时闭合拉片向吻合器的远端侧方向运动，并且在吻合器击发完成后，需要将钉头部打开时，向上抬起推块，通过推块的抬升作用使得保持件与第一滑块脱离，而不再限制闭合驱动件的位置，闭合驱动件可以返回至初始位置，从而使得钉仓和钉砧可以打开，可以十分顺畅地拉回切刀。
以上内容是结合具体的优选实施方式对本揭露所作的进一步详细说明，不能认定本揭露的具体实施只局限于这些说明。对于本揭露所属技术领域的普通技术人员来说，在不脱离本揭露构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本揭露的保护范围。

Claims (15)

  1. 一种闭合驱动机构，其特征在于，用于医用吻合器，所述闭合驱动机构包括第一滑块、保持件、闭合驱动件和推块，所述第一滑块与所述闭合驱动件相连接，所述第一滑块包括第一嵌合部，所述保持件包括相连接的第二嵌合部和第一抬升部，所述推块包括位于所述第一抬升部下方的第二抬升部；
    所述吻合器的钉头部闭合时，所述第一滑块的第一嵌合部位于所述保持件的第二嵌合部的下方，且所述第一嵌合部与所述第二嵌合部嵌合，此状态下向上抬起所述推块时，所述推块的第二抬升部向上抬起所述保持件的第一抬升部，所述第二嵌合部向上抬起而与所述第一嵌合部脱离。
  2. 根据权利要求1所述的闭合驱动机构，其特征在于，初始状态下，所述推块的第二抬升部不与所述保持件的第一抬升部接触。
  3. 根据权利要求1所述的闭合驱动机构，其特征在于，所述第一嵌合部的初始位置位于所述第二嵌合部的近端侧，所述闭合驱动机构还包括活动把手和按压件，所述按压件的初始位置位于所述保持件的近端侧；
    在初始状态下握持所述活动把手时，所述第一滑块向吻合器的远端侧方向运动，使得所述第一嵌合部运动至所述第二嵌合部的下方，所述按压件向所述吻合器的远端侧方向运动并向下按压所述保持件，使得所述第二嵌合部向下运动而与所述第一嵌合部嵌合，所述第一滑块带动所述闭合驱动件向所述吻合器的近端侧运动，以闭合所述钉头部。
  4. 根据权利要求3所述的闭合驱动机构，其特征在于，所述闭合驱动机构还包括致动杆，所述按压件设置于所述致动杆的远端侧，在初始状态下握持所述活动把手时，所述活动把手驱动所述致动杆向所述吻合器的远端侧运动。
  5. 根据权利要求3所述的闭合驱动机构，其特征在于，所述保持件包括第二滑块和第三滑块，所述第二滑块包括所述第二嵌合部和所述第一抬升部，在初始状态下握持所述活动把手时，所述按压件向下按压所述第三滑块，使得所述第三滑块带动所述第二滑块向下运动。
  6. 根据权利要求5所述的闭合驱动机构，其特征在于，所述第二滑块与所述第三滑块之间设置有第一偏置件，所述第一偏置件给所述第二滑块一朝向下方的偏置力；
    在所述第一嵌合部和所述第二嵌合部嵌合的状态下，向上抬起所述推块时，所述第二滑块相对于所述第三滑块向上运动，所述第一偏置件产生变形。
  7. 根据权利要求6所述的闭合驱动机构，其特征在于，所述吻合器的钉头部闭合时，所述推块的第二抬升部不与所述第二滑块的第一抬升部接触；或，
    所述吻合器的钉头部闭合时，所述推块的第二抬升部与所述保持件的第一抬升部接触，但所述第二抬升部给所述第二滑块的作用力不足以驱使所述第一偏置件产生变形。
  8. 根据权利要求5所述的闭合驱动机构，其特征在于，所述第三滑块的内部设置有容置槽，所述第二滑块设置于所述容置槽中。
  9. 根据权利要求3所述的闭合驱动机构，其特征在于，所述推块与所述吻合器的壳体之间设置有第二偏置件，所述第二偏置件给所述推块一朝向下方的偏置力；
    向上抬起所述推块时，所述第二偏置件发生变形。
  10. 根据权利要求3所述的闭合驱动机构，其特征在于，所述闭合驱动件的近端侧设置有第三偏置件，所述第三偏置件给所述闭合驱动件一朝向所述吻合器的远 端侧方向的偏置力。
  11. 根据权利要求1所述的闭合驱动机构，其特征在于，所述推块还包括操作部，所述推块的操作部的第一侧突出于所述吻合器的壳体外侧。
  12. 根据权利要求11所述的闭合驱动机构，其特征在于，所述推块的第二抬升部为突出于所述操作部的第二侧的抬升臂。
  13. 根据权利要求1所述的闭合驱动机构，其特征在于，所述保持件与所述吻合器的壳体之间设置有第四偏置件，所述第四偏置件给所述保持件一朝向上方的偏置力。
  14. 根据权利要求1所述的闭合驱动机构，其特征在于，所述第一嵌合部为凸台，所述第二嵌合部为凹槽；或
    所述第一嵌合部为凹槽，所述第二嵌合部为凸台。
  15. 一种医用吻合器，其特征在于，包括权利要求1至14中任一项所述的闭合驱动机构。
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US20220330938A1 (en) 2022-10-20
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CA3151258C (en) 2024-03-26
AU2020338904A1 (en) 2022-03-03
CA3151258A1 (en) 2021-03-04
AU2020338904B2 (en) 2023-09-28
EP4023170A1 (en) 2022-07-06
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JP2022545813A (ja) 2022-10-31
JP7454652B2 (ja) 2024-03-22

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