WO2021037154A1 - 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

Info

Publication number
WO2021037154A1
WO2021037154A1 PCT/CN2020/111792 CN2020111792W WO2021037154A1 WO 2021037154 A1 WO2021037154 A1 WO 2021037154A1 CN 2020111792 W CN2020111792 W CN 2020111792W WO 2021037154 A1 WO2021037154 A1 WO 2021037154A1
Authority
WO
WIPO (PCT)
Prior art keywords
stapler
driving
closing
driving part
cylinder
Prior art date
Application number
PCT/CN2020/111792
Other languages
English (en)
French (fr)
Inventor
单腾
曹元阳
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 CN201910806840.XA external-priority patent/CN112438766A/zh
Priority claimed from CN201910807054.1A external-priority patent/CN112438767A/zh
Priority claimed from CN201921425089.0U external-priority patent/CN210990511U/zh
Priority claimed from CN201921424809.1U external-priority patent/CN210990509U/zh
Priority to EP20856653.9A priority Critical patent/EP4023169A4/en
Priority to US17/634,783 priority patent/US20220323068A1/en
Priority to JP2022512732A priority patent/JP7345056B2/ja
Priority to BR112022002758A priority patent/BR112022002758A2/pt
Priority to CA3151254A priority patent/CA3151254A1/en
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 KR1020227008262A priority patent/KR20220047999A/ko
Priority to AU2020335820A priority patent/AU2020335820B2/en
Publication of WO2021037154A1 publication Critical patent/WO2021037154A1/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
    • A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115—Staplers for performing anastomosis in a single operation
    • A61B17/1155—Circular staplers comprising a plurality of staples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—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
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
    • A61B2017/00544—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated pneumatically

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.
  • first hold the movable handle pull the closing pull tab of the nail head to the proximal side of the stapler through the closing drive mechanism, thereby closing the staple cartridge and the nail anvil assembly, and then hold the operating handle again to push
  • the staples move toward the tissue, and the tissues are anastomosed through the forming of the staples in the staple cartridge at the nail anvil assembly.
  • the nail head needs to be opened to separate the nail cartridge from the nail anvil.
  • the staple cartridge and the staple anvil will be relatively suddenly and quickly separated, and the suddenly opened jaw may damage other tissues.
  • 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 purpose of the present disclosure is to provide a closed driving mechanism and a medical stapler including the same.
  • a one-way air damping structure After the stapler is fired, the nail head is slowly opened.
  • the disclosed embodiment provides a closing driving mechanism for a medical stapler, the closing driving mechanism includes a driving part and a cylinder, the driving part is connected with the closing pull tab of the stapler, and the driving part is located at On the proximal side of the barrel, a cavity is formed inside the barrel, and the cavity is provided with a one-way valve;
  • the driving part moves to the proximal side of the stapler, the volume of the cavity part increases, the one-way valve opens, and the driving part drives the closing pull tab to the proximal side of the stapler Side-to-side movement to drive the nail head of the stapler to close;
  • the driving part moves to the distal side of the stapler, the volume of the cavity part is reduced, the one-way valve is closed, and the driving part drives the closing pull tab to the distal end of the stapler. Side-to-side movement to drive the nail head of the stapler to open.
  • the barrel is a part of the stapler housing.
  • the one-way valve is provided on the distal side of the barrel.
  • the cavity portion is further provided with air holes communicating with air.
  • the driving part is at least partially located inside the cylinder, and the inner wall of the cylinder and the driving part enclose the cavity.
  • the driving portion is movable along the axial direction of the stapler relative to the proximal side of the barrel.
  • a first seal is provided between the outer wall of the driving part and the inner wall of the cylinder.
  • the driving part includes a first driving part and a second driving part, the first driving part is at least partially located inside the cylinder, and the second driving part is connected to the first driving part. Between the piece and the closed pull tab.
  • the mechanism further includes a sleeve, the cylinder and the driving part are both sleeved on the sleeve, and the driving part can move along the axial direction of the sleeve;
  • a second seal is provided between the outer wall of the sleeve and the cylinder.
  • the outer wall of the barrel is provided with at least one first fixing portion
  • the housing of the stapler is provided with a second fixing portion that matches with the first fixing portion
  • the outer wall of the barrel is provided with at least one fixing groove
  • the housing of the stapler is provided with a fixing beam that matches with the fixing groove
  • the outer wall of the cylinder is provided with at least one fixed beam, and the housing of the stapler is provided with a fixed groove matched with the fixed beam.
  • the driving part is connected to the proximal side of the barrel, and when the driving part moves in the axial direction of the stapler, it drives the proximal side of the barrel along the The axial direction of the stapler is moved to change the length of the barrel along the axial direction of the stapler.
  • the driving part includes a first driving part and a second driving part, the first driving part is connected to the proximal side of the cylinder, and the second driving part is connected to the first driving part. Between a driving member and the closing pull tab.
  • the side wall of the barrel is a flexible side wall.
  • the flexible side wall of the barrel has a bending deformation, and the driving part moves toward the proximal side of the stapler. At this time, the bending deformation of the flexible side wall is reduced.
  • the side wall of the barrel is an elastic side wall, and when the driving portion drives the proximal side of the barrel to move to the proximal side of the stapler, the elastic side of the barrel is pulled.
  • the sidewall is elastically deformed.
  • the barrel is a corrugated tube extending along the axial direction of the stapler.
  • the corrugated tube has a compression deformation, and the driving part is closer to the stapler.
  • the compression deformation of the bellows decreases.
  • the distal side of the barrel is fixed to the housing of the stapler.
  • it further includes a biasing member and a drawstring, and the biasing member and the drawstring are respectively connected to the driving part;
  • the driving part moves to the distal side of the stapler under the action of the deformation restoring force of the biasing member.
  • the biasing member is a compression spring provided on the proximal side of the driving part.
  • the closing drive mechanism further includes a movable handle, a sliding block, and a steering support beam, the pull rope is sleeved on the steering support beam, and both ends of the pull rope are connected to the steering support beam.
  • the movable handle drives the slider to move to the distal side of the stapler, and the slider pulls the driving part toward the The proximal side of the stapler moves.
  • the closing drive mechanism further includes a holding member and an actuating rod, the actuating rod includes a pressing part, and the initial positions of the sliding block and the pressing part are both located at the proximal end of the holding part side;
  • the movable handle drives the actuating rod to move to the distal side of the stapler, and the pressing part of the actuating rod downwardly presses the holder and
  • the sliding block is fitted;
  • the pressing part of the actuating rod no longer presses the holder, the holder moves upward to disengage from the slider, and the driving part deforms on the biasing part. Move to the distal side of the stapler under the action of restoring force.
  • the embodiment of the present disclosure also provides a medical stapler, which includes the above-mentioned closing driving mechanism.
  • the present disclosure provides a closed driving mechanism for a medical stapler, adding a one-way air damping structure.
  • the one-way valve opens so that the cavity part communicates with the outside air, which is driven by the driving part
  • the movement of the closing pull tab to the proximal side of the stapler can drive the nail head to close; after the stapler is fired, the one-way valve is closed, and the movement of the driving part to the distal side of the stapler compresses the air in the cavity, and the driving part is
  • the resistance of the compressed air slows down the movement, so that the nail head can be opened slowly, avoiding the excessive force of the jaw opening and damaging the surrounding tissues.
  • 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 structure after removing the cylinder in Fig. 2;
  • FIG. 4 is a schematic structural diagram of the closing driving mechanism in the initial state of the first embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of the positional relationship between the cylinder and the driving part in the initial state of the first embodiment of the present disclosure
  • Fig. 6 is a top view of the closing driving mechanism in the initial state of the first embodiment of the present disclosure
  • Fig. 7 is a cross-sectional view in the direction of A1-A1 in Fig. 6;
  • FIG. 8 is a schematic diagram of the positional relationship between the barrel and the driving part during the firing process of the first embodiment of the present disclosure
  • FIG. 9 is a top view of the closing driving mechanism during the firing process of the first embodiment of the present disclosure.
  • Fig. 10 is a cross-sectional view in the direction of A2-A2 in Fig. 9;
  • FIG. 11 is a schematic diagram of the positional relationship between the barrel and the driving part after the firing is completed in the first embodiment of the present disclosure
  • FIG. 12 is a schematic structural diagram of the closing driving mechanism in the initial state of the second embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of the closing driving mechanism in the initial state of the third embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of the closing driving mechanism in the initial state of the fourth embodiment of the present disclosure.
  • 15 is a schematic structural diagram of the closing driving mechanism in the initial state of the fifth embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of the closing driving mechanism of the sixth embodiment of the present disclosure in cooperation with the housing of the stapler;
  • Figure 17 is a schematic view of the structure of Figure 16 after removing the stapler housing
  • FIG. 18 is a schematic diagram of the structure after removing the cylinder in FIG. 17;
  • 19 is a schematic structural diagram of the closing driving mechanism in the initial state of the sixth embodiment of the present disclosure.
  • 20 is a top view of the closing driving mechanism in the initial state of the sixth embodiment of the disclosure.
  • FIG. 21 is a cross-sectional view in the direction of A1-A1 in FIG. 20;
  • 22 is a schematic structural diagram of the closed driving mechanism after the nail head is closed according to the sixth embodiment of the present disclosure.
  • FIG. 23 is a top view of the closed driving mechanism after the nail head is closed according to the sixth embodiment of the present disclosure.
  • Figure 24 is a cross-sectional view in the direction of A2-A2 in Figure 23;
  • 25 is a schematic structural diagram of the closing driving mechanism of the stapler according to the sixth embodiment of the disclosure after firing is completed;
  • 26 is a schematic diagram of the structure of the closing driving mechanism in the initial state of the seventh embodiment of the present disclosure.
  • FIG. 27 is a schematic structural diagram of the closed driving mechanism after the nail head is closed according to the seventh embodiment of the present disclosure.
  • FIG. 28 is a schematic diagram of the structure of the closing driving mechanism of the eighth embodiment of the present disclosure.
  • FIG. 29 is a schematic diagram of the structure of the closing driving mechanism of the ninth embodiment of the present disclosure.
  • FIG. 30 is a schematic diagram of the structure of the closing driving mechanism of the tenth embodiment of the present disclosure.
  • FIG. 31 is a schematic diagram of the structure of the closing driving mechanism of the eleventh embodiment of the present disclosure.
  • the present disclosure provides a closing 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, and the closing driving mechanism includes a driving part and a cylinder. The driving part is connected with the closing pull tab of the stapler, and the closing pull tab can be pulled along the anastomosis. The axial movement of the device.
  • a cavity portion is formed inside the barrel, and the cavity portion is provided with a one-way valve, so that the driving portion and the barrel together form an air damping structure.
  • the one-way valve will open when receiving a force in a first direction, so that the cavity portion is connected with the outside air, and the one-way valve will be closed when receiving a force in a second direction, so that the cavity is closed.
  • the part becomes a closed cavity that is not connected to the outside air.
  • the operator Before the stapler is fired, the operator needs to close the staple cartridge and the staple anvil to clamp the tissue.
  • the driving part moves to the proximal side of the stapler, since the distance between the distal side wall of the driving part and the distal side wall of the cylinder increases, the cavity The volume of the stapler increases, the one-way valve is opened by the force of the first direction, and the driving part drives the closing pull tab to move toward the proximal side of the stapler, thereby driving the staple head of the stapler closure.
  • the one-way valve is opened to form an air circulation channel.
  • air is continuously entered into the cavity to fill the increased volume, so as not to cause the closing process of the nail head. Hinder.
  • the driving part moves to the distal side of the stapler, because the distance between the distal side wall of the driving part and the distal side wall of the barrel decreases At this time, the volume of the cavity portion is reduced, the one-way valve is closed by the force of the second direction, and the driving portion drives the closing pull tab to move to the distal side of the stapler to drive the one-way valve.
  • the nail head of the stapler is opened.
  • the one-way valve is closed to make the cavity part a closed cavity.
  • the air in the cavity part is compressed as the volume of the cavity part decreases, and the driving part faces the distal side of the stapler. The movement will be resisted by the compressed air, thereby slowing down the movement speed of the driving part, so that the nail head of the stapler can be opened slowly, so as to avoid excessive force opening the jaws and damaging the surrounding tissues.
  • Figures 1 to 15 show a number of embodiments in which the driving part can move axially relative to the proximal side of the cylinder
  • Figures 16 to 31 show more of the fixed connection of the driving part to the proximal side of the cylinder. Examples.
  • Figures 1-11 show the structure of the closing drive mechanism of the first embodiment of the present disclosure.
  • the driving part 61 is an integral part.
  • Figures 12, 13, 14 and 15 respectively show the structure of the closing drive mechanism of the second, third, fourth, and fifth embodiments of the present disclosure.
  • the driving part includes two separately arranged parts: a first driving part 611 and a second driving part 612.
  • 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 stapler body 1 includes a housing 13 and a fixed handle 11, and the interior of the stapler body 1
  • a closing pull tab 12 for closing the nail head and opening the nail head is also provided.
  • the closing pull tab 12 When the closing pull tab 12 is in the initial state, the nail head opens, and when the closing pull tab 12 moves toward the proximal side of the stapler, the nail head When the closed and closed pull tab 12 moves to the distal side of the stapler, the nail head can be reopened.
  • the closing driving mechanism includes a driving part 61 and a cylinder 71.
  • the distal end of the driving part 61 is connected to the closing pull tab 12, and the driving part 61 can drive the The closing pull tab 12 moves along the axial direction of the stapler.
  • the driving part 61 is located on the proximal side of the cylinder 71, and the driving part 61 is at least partially located inside the cylinder 71.
  • a cavity portion 74 is enclosed between the inner wall of the cylinder 71 and the driving portion 61, and the cavity portion 74 is provided with a one-way valve 73.
  • the one-way valve 73 is provided on the distal end side of the cylinder 71.
  • the one-way valve 73 When the one-way valve 73 receives a force from the distal side to the proximal side of the stapler, the one-way valve 73 opens, and the one-way valve 73 receives a force from the proximal side of the stapler to the distal side. When the force is applied to the end side, the one-way valve 73 is closed.
  • the driving portion 61 can move along the axial direction of the stapler relative to the proximal side of the barrel 71 to change the volume of the cavity portion 74. Therefore, the driving portion 61 is equivalent to
  • the cylinder 71 is fitted with a piston part.
  • 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 upward or upward direction is relative to the actuating rod 2 toward the side away from the rack 23, and the downward or downward direction is opposite to it.
  • the distal side of the stapler body 1 is the left end in the figure
  • the proximal side of the stapler body 1 is the right end in the figure.
  • the upward direction Refers to the upper end in the figure. As shown in FIGS.
  • the closing driving mechanism further includes a sleeve 14, and the closing pull tab 12 is arranged inside the sleeve 14.
  • the sleeve 14 extends in the axial direction of the stapler.
  • Both the cylinder 71 and the driving part 61 are sleeved on the outside of the sleeve 14.
  • the outer wall of the cylinder 71 is provided with at least one fixing groove 711
  • the housing 13 of the stapler is provided with a fixing groove that cooperates with the fixing groove 711.
  • the beam 15 thus keeps the position of the cylinder 71 relative to the housing 13 stable during the operation of the stapler.
  • At least one fixed beam may be provided on the outer wall of the cylinder 71, and the housing 13 of the stapler is provided with a fixed groove that matches with the fixed beam to fix the fixed beam.
  • a fixing groove may be provided on the outer wall of the cylinder 71, and the housing 13 of the stapler may be provided with a matching fixed beam, or the cylinder 71 and the housing 13 may also adopt other fixed structures to face each other. Fixed, such as mating bosses and grooves.
  • the cylinder 71 may not be fixed to the housing 13, but may be movably arranged in the housing 13 of the stapler, or the cylinder 71 may be fixed to the sleeve.
  • the upper grade of the tube 14 falls within the protection scope of this disclosure.
  • the cylinder 71 can also be a part of the housing 13, that is, the cylinder 71 and the housing 13 are integrally formed. In this embodiment, the housing 13 is divided into two parts, namely, the first housing 13 and the second housing 13.
  • the cylinder 71 includes a first cylinder provided on the first housing 13 and a second cylinder provided on the second housing; when the When the first shell 13 and the second shell are buckled together, the first cylinder and the second cylinder are buckled into a corresponding cylinder 71.
  • a first sealing member 62 is provided, specifically a first sealing ring 62, and the first sealing ring 62 may be made of flexible materials such as rubber or plastic. In other optional embodiments of the present disclosure, the first sealing ring 62 may not be provided, and one of the driving portion 61 or the cylinder 71 may be made of flexible material to realize the inner wall of the cylinder 71 and the driving The outer wall of the part 61 is sealed and attached.
  • the first sealing ring 62 is provided, or one of the driving part 61 or the cylinder 71 is made of a flexible material, which can not only play a sealing role, but also increase the relative distance between the driving part 61 and the cylinder 71 The friction force during movement makes the jaw opening and closing process gentle and stable.
  • the cylinder 71 is connected to the sleeve 14 in a sealed manner, and the outer wall of the sleeve 14 and the The cylinder 71 is sleeved between the inner walls of the opening on the sleeve 14 and preferably is provided with a second sealing member 72, specifically a second sealing ring 72, which can be made of flexible materials such as rubber, plastic, etc. .
  • the closing drive mechanism further includes a movable handle 3, a biasing member, a draw rope 51, a steering support beam 52 and a first sliding block 41.
  • the steering The supporting beam 52 preferably adopts a pulley structure.
  • the biasing member imparts a biasing force to the driving portion 61 toward the distal side of the stapler.
  • the biasing member is a first compression spring 63 provided on the proximal side of the driving portion 61.
  • the biasing member may also be a tension spring, Structures such as shrapnel are not limited to this.
  • the side surface of the first slider 41 is provided with a second groove 412, one end of the pull cord 51 is set in the second groove 412, and the other end of the pull cord 51 is fixed to the driving part 61 , So as to realize the linkage of the first slider 41 and the driving part 61.
  • the movement direction of the first sliding block 41 is opposite to the movement direction of the driving part 61.
  • the closing drive mechanism further includes a holder and an actuating rod 2, which extends in the axial direction of the stapler.
  • the holder includes a second sliding block 42 and a third sliding block 43, and a second compression spring 44 is provided under the third sliding block 43.
  • the actuating rod 2 includes a pressing part 21 and a firing part 22. In an initial state, the initial positions of the first sliding block 41 and the pressing part 21 are both located on the proximal side of the holder.
  • the structure of the closing driving mechanism is shown when the staple head of the stapler is driven to close in the first embodiment.
  • the movable handle 3 in the initial state, the movable handle 3 is held, and the movable handle 3 drives the first slider 41 to move to the distal side of the stapler through the connecting rod 32, and at the same time, the movable handle 3 The handle 3 drives the actuating rod 2 to move to the distal side of the stapler through the claw 31.
  • the driving part 61 When the first sliding block 41 moves to the distal side of the stapler, the driving part 61 is pulled to move to the proximal side of the stapler through the drawstring 51, and the driving part 61 presses the first compression spring 63 is compressed and deformed, and the driving part 61 simultaneously drives the closing pull tab 12 to move to the proximal side of the stapler to drive the nail head to close.
  • the one-way valve 73 is opened by a force toward the proximal side of the stapler, forming the cavity portion 74 and The communication channel for outside air. Therefore, in the process of closing the nail head, the one-way air damping structure does not hinder the movement of the driving part 61, and the nail head can be normally closed to clamp the tissue.
  • first sliding block 41 and the holder here is only one embodiment.
  • an upwardly recessed groove may also be provided on the lower surface of the holder, and the actuator rod 2
  • the pressing portion 21 presses the holder downward the holder moves downward so that the upper end of the first slider 41 enters the groove of the holder, so as to realize the engagement between the holder and the first slider 41.
  • FIG. 11 shows the structure of the closing driving mechanism after the stapler is fired in the first embodiment.
  • the pressing portion 21 (not shown in the figure) of the actuating rod 2 no longer presses the third sliding block 43 downward, and the third sliding block 43 moves upward under the action of the deformation restoring force of the second compression spring 44.
  • the first sliding block 41 loses the holding function of the holder and can move freely, and no longer exerts a pulling force on the driving part 61 toward the proximal side of the stapler.
  • the driving portion 61 moves to the distal side of the stapler, and drives the closing pull tab 12 to move to the distal side of the stapler to drive the The staple head of the stapler opens.
  • the distal side wall of the driving part 61 and the distal side of the cylinder 71 The distance of the wall gradually decreases, the volume of the cavity portion 74 gradually decreases, and the one-way valve 73 is closed by a force toward the distal side of the stapler.
  • the cavity portion 74 is not in communication with the external air, and the air is gradually compressed as the volume of the cavity portion 74 decreases, and the movement of the driving portion 61 to the distal side of the stapler will be compressed.
  • the air resistance slows down the movement speed of the driving part 61, and the nail head of the stapler opens slowly.
  • the side wall of the cavity portion 74 may also be provided with a small air hole communicating with the air, and the small air hole can only vent the air to the outside very slowly when the volume of the cavity portion 74 is reduced.
  • the air bleed speed of the small air hole is not as fast as the compressed air speed, so the air still generates resistance to the movement of the driving part 61 to the distal side.
  • the contact surface of the first sealing ring 62 and the cylinder 71 is also effective for the movement of the driving part 61 toward the distal side of the stapler.
  • the presence of certain damping is more conducive to slowing down the movement speed of the driving part 61.
  • Figures 12 to 15 are respectively structural schematic diagrams of the closing driving mechanism of the second embodiment, the third embodiment, the fourth embodiment, and the fifth embodiment of the disclosure.
  • the difference between the four embodiments and the first embodiment is that the piston portion 64 and the driving portion 61 are separately provided as two interconnected components.
  • the piston portion 64 is located on the proximal side of the barrel 71, and the size of the piston portion 64 matches the size of the inner wall of the barrel 71 to form a sealed connection with the barrel 71, and the driving portion
  • the shape and size of 61 are not limited to the shape and size shown in FIG. 14, and only need to satisfy the requirement of transmitting the movement of the piston portion 64 to the closing pull tab 12.
  • the driving part 61 includes a first driving part 611 and a second driving part 612.
  • the first driving part 611 is at least partially located in the cavity of the cylinder 71 and is connected to the cylinder 71.
  • the inner wall of the body 71 cooperates to function as a piston part, and the second driving part 612 is connected between the first driving part 611 and the closing pull tab 12, and the first driving part 611 is connected to the pull cord 51.
  • the size of the second driving member 612 can be smaller than that of the first driving member 611, so that the second driving member 612 and the cylinder 71 are not in a sealed connection, and the outer side wall of the first driving member 611 and the inner wall of the cylinder 71 A sealed connection is formed between the second driving member 612 in the cavity portion, and the movement of the second driving member 612 in the cavity portion will not affect the volume change of the cavity portion itself, and only the movement of the first driving member 611 toward the distal side of the stapler and the proximal side of the stapler can It will cause the volume of the cavity to decrease and increase.
  • the first driving member 611 can be made of a flexible material or a first sealing ring 62 is arranged between the first driving member 611 and the inner wall of the cylinder 71, which can not only play a sealing role, but also increase the size of the first driving member 611.
  • the frictional force during the relative movement with the cylinder 71 makes the jaw opening and closing process gentle and stable.
  • the first driving member 611 moves to the proximal side of the stapler under the action of the pull cord 51, the distal side wall of the first driving member 611 and the distal end of the cylinder 71 The distance between the side walls increases, the volume of the cavity increases, the one-way valve 73 is opened by the force toward the proximal side, and the first driving member 611 drives the second driving member 612 to The proximal side of the stapler moves to drive the closing pull tab 12 of the stapler to move to the proximal side of the stapler, thereby driving the staple head of the stapler to close, and at the same time, the first driving member 611 compresses the first compression spring 63 on the proximal side to deform.
  • the first driving member 611 moves to the distal side of the stapler under the action of the deformation and restoring force of the first compression spring 63, because the distal side wall of the first driving member 611 and the barrel The distance between the distal side walls of the body 71 is reduced. At this time, the volume of the cavity portion is reduced.
  • the one-way valve 73 is closed by a force toward the distal side, and the first driving member 611 drives the
  • the second driving member 612 moves to the distal side of the stapler, and the second driving member 612 drives the closing pull tab 12 to move to the distal side of the stapler to drive the nail head of the stapler to open.
  • the air in the cavity is compressed as the volume of the cavity decreases, and the movement of the first driving member 611 to the distal side of the stapler will be resisted by the compressed air, thereby slowing down the movement of the piston.
  • the speed allows the nail head of the stapler to be slowly opened, thereby avoiding excessive force of the jaw opening and damaging the surrounding tissues.
  • the difference from the second embodiment is that the second driving member 612 is located on the distal end side of the cylinder 71, and the second driving member 612 is between the first driving member 611 The connection is made by the connecting rod 65. Since the second driving member 612 is outside the cylinder 71, the movement of the second driving member 612 will not affect the volume of the cavity.
  • the difference from the third embodiment is that the first compression spring 63 is not provided on the proximal side of the first driving member 611, but is provided on the second driving member 612. Between the proximal side and the barrel 71, and can be sleeved on the connecting rod 65.
  • the closing driving member 61 is pulled to move to the proximal side, and the closing driving member 61 will compress the first compression spring 63 to deform.
  • the second driving member 612 moves toward the distal side under the action of the deformation restoring force of the first compression spring 63, and drives the pull tab 12 and the second driving member 612. A driving member 611 moves to the distal side.
  • FIG. 15 it is a schematic structural diagram of the closing driving mechanism of the fifth embodiment of the disclosure.
  • the difference between this embodiment and the two embodiments shown in FIGS. 12-13 is that the pull tab 12 and the first driving member 611 are not coaxially arranged, and the second driving member 612 can be connected to the side wall of the first driving member 611. Fixed connection.
  • the working principles of the second driving member 612 and the first driving member 611 are the same as the embodiments shown in FIG. 12 and FIG. 13, and will not be repeated here.
  • the cylinder 71 and the first driving member 611 may be arranged in at least two groups, and the second driving member 612 is fixedly connected to a plurality of the first driving members 611 at the same time.
  • a plurality of the one-way valves 73 are respectively provided in the cavity portion 74 of each of the cylinders 71.
  • the cylinder 71 is preferably made of materials that are not easily deformed, such as plastics and metals with relatively high hardness, so as to ensure the structural stability and structural stability of the cylinder 71. Position stability.
  • the present disclosure is not limited to this.
  • the embodiments of FIGS. 1 to 15 can also be used in conjunction with a cylinder 71 having a certain degree of flexibility or elasticity, and all fall within the protection scope of the present disclosure.
  • the driving part is connected with the proximal side of the cylinder to drive the proximal side of the cylinder along the axis of the stapler. Moving in the direction, as the length of the side wall of the cylinder changes, the volume of the cavity also changes.
  • the driving part moves to the proximal side of the stapler, it drives the closing pull tab and the proximal side of the cylinder to move to the proximal side of the stapler respectively, and the cylinder
  • the length along the axial direction of the stapler is elongated, the volume of the cavity part increases, and the one-way valve opens;
  • the driving part moves to the distal side of the stapler, it drives all The closing pull tab and the proximal side of the barrel move toward the distal side of the stapler, the length of the barrel along the axial direction of the stapler is shortened, and the volume of the cavity portion is reduced ,
  • the one-way valve is closed.
  • 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 stapler body 1 includes a housing 13 and a fixed handle 11.
  • the inside of the stapler body 1 is also provided with a sleeve 14 extending in the axial direction of the stapler.
  • the inside of the sleeve 14 is provided with a closing pull tab 12 for closing and opening the nail head.
  • the nail anvil and the staple cartridge are separated.
  • the closing pull tab 12 moves to the proximal side of the stapler
  • the nail anvil and the staple cartridge are closed.
  • the closing pull tab 12 moves to the distal side of the stapler, the nail head Department can be reopened.
  • the closing driving mechanism includes a driving part 61 and a cylinder 71, and both the driving part 61 and the cylinder 71 are sleeved on the outside of the sleeve 14.
  • the driving part 61 is connected with the closing pull tab 12 of the stapler to form a linkage between the driving part 61 and the closing pull tab 12, and the driving part 61 is connected to the proximal side of the cylinder 71 It is fixedly connected to form a linkage between the driving portion 61 and the proximal side of the cylinder 71.
  • the cylinder 71 is a deformable cylinder whose distal end is relatively fixed to the housing 1 of the stapler. The end side can move axially with the driving part 61.
  • a cavity portion 74 is formed inside the barrel 71, and the cavity portion 74 is provided with a one-way valve 73.
  • the one-way valve 73 is provided on the distal end side of the cylinder 71.
  • the one-way valve 73 receives a force from the distal side to the proximal side of the stapler, the one-way valve 73 opens.
  • the cavity portion 74 is in communication with the outside air, and the single
  • the direction valve 73 receives a force from the proximal side to the distal side of the stapler, the one-way valve 73 is closed, and the cavity portion 74 is a closed cavity at this time.
  • the cylinder 71 and the sleeve 14 are connected in a sealed manner, and the outer wall of the sleeve 14 and the
  • the cylinder 71 is sleeved between the inner wall of the opening on the sleeve 14 and preferably is provided with a sealing member 72.
  • the sealing member 72 may be a sealing ring, but the present disclosure is not limited to this.
  • the sealing member 62 may be made of rubber or plastic. And other flexible materials.
  • the side wall of the cylinder 71 is a flexible side wall, for example, the side wall is made of plastics, textile materials and other materials.
  • the distal side and the proximal side of the barrel 71 can be set to be rigid, and only the side wall of the barrel 71 is a deformable side wall.
  • the entire cylinder 71 may be made of flexible materials.
  • the entire cylinder 71 may be made of plastic, rubber, or other materials.
  • the flexible side wall of the barrel 71 has a predetermined amount of bending deformation.
  • the distal side of the barrel 71 is fixed to the housing 13 of the stapler, so as to keep the position of the distal side of the barrel 71 relatively stable.
  • the proximal side of the barrel 71 moves along the axial direction of the stapler, the distance between the distal side of the barrel 71 and the proximal side of the barrel 71 changes accordingly.
  • the closing drive mechanism further includes a movable handle 3, a biasing member, a drawstring 51, a steering support beam 52 and a first sliding block 41.
  • the steering support beam 52 preferably adopts a pulley structure.
  • the biasing member imparts a biasing force to the driving portion 61 toward the distal side of the stapler.
  • the biasing member is a first compression spring 63 provided on the proximal side of the driving portion 61.
  • the biasing member may also be a tension spring, Structures such as shrapnel are not limited to this.
  • the side surface of the first slider 41 is provided with a second groove 412, one end of the pull cord 51 is set in the second groove 412, and the other end of the pull cord 51 is fixed to the driving part 61 , So as to realize the linkage of the first slider 41 and the driving part 61.
  • the movement direction of the first sliding block 41 is opposite to the movement direction of the driving part 61.
  • the closing drive mechanism further includes a holder and an actuating rod 2, which extends in the axial direction of the stapler.
  • the holder includes a second sliding block 42 and a third sliding block 43, and a second compression spring 44 is provided under the third sliding block 43.
  • the actuating rod 2 includes a pressing part 21 and a firing part 22. In an initial state, the initial positions of the first sliding block 41 and the pressing part 21 are both located on the proximal side of the holder.
  • the structure of the closing driving mechanism is shown when driving the staple head of the stapler to close in the sixth embodiment.
  • the movable handle 3 drives the first sliding block 41 to move to the distal side of the stapler through the connecting rod 32, and at the same time, the movable handle 3 drives the actuation through the claw 31
  • the rod 2 moves to the distal side of the stapler.
  • the driving portion 61 When the first slider 41 moves to the distal side of the stapler, the driving portion 61 is pulled by the pull cord 51 to press the first compression spring 63 to produce compression deformation, and the driving portion 61 simultaneously drives the closing pull
  • the sheet 12 moves to the proximal side of the stapler to drive the nail anvil and the nail cartridge to close to close the nail head.
  • the driving portion 61 simultaneously drives the proximal side of the barrel 71 to move toward the proximal side of the stapler, and the proximal side of the barrel 71 is connected to the proximal side of the stapler.
  • the distance to the distal end of the barrel 71 is increased, the bending deformation of the barrel 71 is reduced, the barrel 71 is elongated in the axial direction of the stapler, and the cavity portion 74 is
  • the one-way valve 73 is opened by a force toward the proximal side of the stapler, forming a communication channel between the cavity portion 74 and the outside air. Therefore, in the process of closing the nail head, the one-way air damping structure does not hinder the movement of the driving part 61, and the nail head can be normally closed to clamp the tissue.
  • the first slider 41 moves to the bottom of the holder, and at the same time the pressing portion 21 (not shown in the figure) of the actuating rod 2 contacts the third holder in the holder.
  • the second compression spring 44 is compressed and deformed.
  • first sliding block 41 and the holder here is only one embodiment.
  • an upwardly recessed groove may also be provided on the lower surface of the holder, and the actuator rod 2
  • the pressing portion 21 presses the holder downward the holder moves downward so that the upper end of the first slider 41 enters the groove of the holder, so as to realize the engagement between the holder and the first slider 41.
  • FIG. 25 it shows the structure of the closing drive mechanism after the stapler is fired in the sixth embodiment.
  • the pressing portion 21 (not shown in the figure) of the actuating rod 2 no longer presses the third sliding block 43 downward, and the third sliding block 43 moves upward under the action of the deformation restoring force of the second compression spring 44.
  • the first sliding block 41 loses the holding function of the holder and can move freely, and no longer exerts a pulling force on the driving part 61 toward the proximal side of the stapler.
  • the driving portion 61 moves to the distal side of the stapler, and drives the closing pull tab 12 to move to the distal side of the stapler, so that the The staple anvil of the stapler is separated from the staple cartridge to open the staple head.
  • the proximal side wall of the cylinder 71 and the distal side of the cylinder 71 The distance between the walls gradually decreases, the length of the barrel 71 along the axial direction of the stapler gradually decreases, the volume of the cavity portion 74 gradually decreases, and the one-way valve 73 is moved toward the distal side of the stapler.
  • the force is closed.
  • the cavity portion 74 is not in communication with the external air, and the air is gradually compressed as the volume of the cavity portion 74 decreases, and the movement of the driving portion 61 to the distal side of the stapler will be compressed.
  • the side wall of the cavity portion 74 may also be provided with a small air hole communicating with the air, and the small air hole can only vent the air to the outside very slowly when the volume of the cavity portion 74 is reduced.
  • the air bleed speed of the small air hole is not as fast as the compressed air speed, so the air still generates resistance to the movement of the driving part 62 to the distal side.
  • the opening degree of the small pneumatic is preferably smaller than the opening degree when the one-way valve 73 is opened, but the present disclosure is not limited to this.
  • the side wall of the cylinder 71 may also be an elastic side wall, for example, a rubber material that can be stretched and deformed and can be restored to its original shape after the stretched deformation.
  • the side wall of the barrel 71 In the initial state, the side wall of the barrel 71 is not deformed, and when the driving portion 61 drives the proximal side of the barrel 71 to move to the proximal side of the stapler, it pulls the barrel 71
  • the elastic sidewall is elastically stretched and deformed.
  • the driving portion 61 drives the proximal side of the barrel 71 to move toward the distal side of the stapler, the elastic tensile deformation of the barrel 71 is gradually reduced so that the barrel 71 is anastomosed along the The length of the device in the axial direction is shortened.
  • the driving part 61 is located inside the cylinder 71, and the inner wall of the cylinder 71 and the driving part 61 enclose the cavity. 74;
  • the driving portion 61 is located outside the cylinder 71, and the inner wall of the cylinder 71 encloses the cavity.
  • the driving portion 61 may be only partly located inside the barrel 71 and partly located outside the barrel 71, which all fall within the protection scope of the present disclosure.
  • FIG. 28 it is a schematic structural diagram of the closing driving mechanism of the eighth embodiment of the disclosure.
  • the cylinder 71 in this embodiment is a corrugated tube extending along the axial direction of the stapler.
  • the corrugated tube has a compression deformation, and the When the driving part 61 moves to the proximal side of the stapler, the compression deformation of the bellows decreases, the axial length of the bellows increases, and the volume of the cavity inside the bellows increases.
  • the driving part 61 moves to the distal side of the stapler, the compression deformation of the bellows increases, the axial length of the bellows decreases, and the cavity of the bellows The volume is reduced.
  • FIG. 29 it is a schematic structural diagram of the closing driving mechanism of the ninth embodiment of the present disclosure.
  • the driving portion 61 is located outside the cylinder 71, and the inner wall of the cylinder 71 encloses the cavity.
  • FIG. 30 it is a schematic structural diagram of the closing driving mechanism of the tenth embodiment of the present disclosure.
  • the driving part 61 includes a first driving part 611 and a second driving part 612 that are connected, and the second driving part 612 is connected to the closing pull tab 12,
  • the first driving member 611 is connected to the proximal side of the cylinder 71.
  • the second driving member 612 is located on the distal side of the cylinder 71, and the second driving member 612 and the first driving member 611 are connected by a connecting rod 65.
  • the first compression spring 63 is arranged between the proximal side of the second driving member 612 and the barrel 71 and can be sleeved on the connecting rod 65.
  • the second driving member 612 When the first driving member 611 moves to the proximal side of the stapler, the second driving member 612 is pulled to move to the proximal side of the stapler, and the second driving member 612 compresses the first compression spring 63 to deform. After the pulling force of the pull cord 51 received by the first driving member 611 toward the proximal side is eliminated, the second driving member 612 moves toward the distal side under the action of the deformation restoring force of the first compression spring 63, and drives the pull tab 12 and the second driving member 612. A driving member 611 moves to the distal side of the stapler.
  • the cylinder 71 and the first driving member 611 may be arranged in at least two groups, and the first driving member 61 is fixedly connected to a plurality of the first driving members 611 at the same time.
  • a plurality of the one-way valves 73 are respectively provided in the cavity portion 74 of each of the cylinders 71.
  • first driving member 611 may also be located outside the barrel 71.
  • second driving member 612 may also be located inside the barrel 71, and the second driving member 612 may also be located inside the barrel 71.
  • a compression spring 63 is arranged on the proximal side of the first driving member 611, which falls within the protection scope of the present disclosure.
  • FIG. 31 it is a schematic structural diagram of the closing driving mechanism of the eleventh embodiment of the present disclosure.
  • the pull tab 12 and the first driving member 611 are not coaxially arranged, and the second driving member 612 can be fixedly connected to the side wall of the first driving member 611.
  • the first driving member 611 and the second driving member 612 can also be completely located outside of 71.
  • the working principles of the second driving member 612 and the first driving member 611 are the same as those of the embodiment shown in FIG. 30, and will not be repeated here.
  • the barrel 71 may be used as a part of the housing 1 of the stapler, or may be a separate component fixedly connected to the housing 1 of the stapler.
  • the structural features between the above-mentioned various embodiments can also be combined with each other to form a new technical solution, which all fall within the protection scope of the present disclosure.
  • the present disclosure provides a closed driving mechanism for a medical stapler, which adds a one-way air damping structure.
  • the one-way valve opens so that the cavity part communicates with the outside air, which is driven by the driving part
  • the movement of the closing driver to the proximal side of the stapler can drive the nail head to close; after the stapler is fired, the one-way valve is closed, and the movement of the driving part to the distal side of the stapler compresses the air in the cavity, and the driving part is
  • the resistance of compressed air slows down the movement, so that the nail head can be opened slowly, avoiding excessive force of the jaw opening and damaging the surrounding tissues.

Abstract

本揭露提供了一种闭合驱动机构及包括其的医用吻合器，所述闭合驱动机构包括驱动部和筒体，所述驱动部与所述吻合器的闭合拉片相连接，所述筒体的内部形成一空腔部，所述空腔部的一侧设置有单向阀，所述驱动部向所述吻合器的远端侧运动时，所述空腔部的体积减小，所述单向阀闭合以形成单向空气阻尼结构，所述驱动部带动所述闭合拉片向所述吻合器的远端侧运动，以驱动所述吻合器的钉头部打开，并且由于驱动部受到空腔部内被压缩的空气的阻力，而减缓驱动部的运动速度，使得所述吻合器的钉仓和钉砧缓慢分离，避免钳口打开的力过大而伤害周围组织。

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，从而将钉仓和钉砧组件闭合后，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。在吻合器击发完成后，需要将钉头部打开，将钉仓和钉砧分离。然而现有的吻合器结构中，在吻合器击发完成后，钉仓和钉砧会比较突然地快速分离，突然张开的钳口可能会损伤其他组织。
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。
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，通过单向空气阻尼结构，在吻合器击发完成后，钉头部缓慢打开。
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驱动部和筒体，所述驱动部与所述吻合器的闭合拉片相连接，所述驱动部位于所述筒体的近端侧，所述筒体的内部形成一空腔部，所述空腔部设置有单向阀；
所述驱动部向所述吻合器的近端侧运动时，所述空腔部的体积增大，所述单向阀打开，所述驱动部带动所述闭合拉片向所述吻合器的近端侧运动，以驱动所述吻合器的钉头部闭合；
所述驱动部向所述吻合器的远端侧运动时，所述空腔部的体积减小，所述单向阀闭合，所述驱动部带动所述闭合拉片向所述吻合器的远端侧运动，以驱动所述吻合器的钉头部打开。
在一些实施例中，所述筒体为所述吻合器壳体的一部分。
在一些实施例中，所述单向阀设置于所述筒体的远端侧。
在一些实施例中，所述空腔部还开设有与空气连通的气孔。
在一些实施例中，所述驱动部至少部分位于所述筒体的内部，所述筒体的内壁与所述驱动部围成所述空腔部。
在一些实施例中，所述驱动部相对于所述筒体的近端侧可沿所述吻合器的轴向方向运动。
在一些实施例中，所述驱动部的外壁与所述筒体的内壁之间设置有第一密封件。
在一些实施例中，所述驱动部包括第一驱动件和第二驱动件，所述第一驱动件至少部分位于所述筒体的内部，所述第二驱动件连接于所述第一驱动件与所述闭合拉片之间。
在一些实施例中，所述机构还包括套管，所述筒体和所述驱动部均套设于所述套管上，且所述驱动部可沿所述套管的轴向方向运动；
所述套管的外壁与所述筒体之间设置有第二密封件。
在一些实施例中，所述筒体的外壁设置有至少一第一固定部，所述吻合器的壳体设置有与所述第一固定部相配合的第二固定部。
在一些实施例中，所述筒体的外壁设置有至少一固定槽，所述吻合器的壳体设置有与所述固定槽相配合的固定梁；
或
所述筒体的外壁设置有至少一固定梁，所述吻合器的壳体设置有与所述固定梁相配合的固定槽。
在一些实施例中，所述驱动部与所述筒体的近端侧相连接，所述驱动部沿所述吻合器的轴向方向运动时，带动所述筒体的近端侧沿所述吻合器的轴向方向运动，以改变所述筒体沿所述吻合器的轴向方向的长度。
在一些实施例中，所述驱动部包括第一驱动件和第二驱动件，所述第一驱动件与所述筒体的近端侧相连接，所述第二驱动件连接于所述第一驱动件与所述闭合拉片之间。
在一些实施例中，所述筒体的侧壁为柔性侧壁，初始状态下，所述筒体的柔性侧壁具有一弯曲变形量，所述驱动部向所述吻合器的近端侧运动时，所述柔性侧壁的弯曲变形量减小。
在一些实施例中，所述筒体的侧壁为弹性侧壁，所述驱动部带动所述筒体的近端侧向所述吻合器的近端侧运动时，拉动所述筒体的弹性侧壁发生弹性变形。
在一些实施例中，所述筒体为沿所述吻合器的轴向方向延伸的波纹管，初始状态下，所述波纹管具有一压缩变形量，所述驱动部向所述吻合器的近端侧运动时，所述波纹管的压缩变形量减小。
在一些实施例中，所述筒体的远端侧固定于所述吻合器的壳体。
在一些实施例中，还包括偏置件和拉绳，所述偏置件和所述拉绳分别与所述驱动部相连接；
驱动所述吻合器的钉头部闭合时，所述拉绳拉动所述驱动部向所述吻合器的近端侧运动，所述偏置件产生变形；
驱动所述吻合器的钉头部打开时，所述驱动部在所述偏置件的变形恢复力作用下向所述吻合器的远端侧运动。
在一些实施例中，所述偏置件为设置于所述驱动部的近端侧的压簧。
在一些实施例中，所述闭合驱动机构还包括活动把手、滑块和转向支撑梁，所述拉绳套设于所述转向支撑梁上，且所述拉绳的两端分别连接于所述滑块和所述驱动部；
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滑块向所述吻合器的远端侧运动，所述滑块通过所述拉绳拉动所述驱动部向所述吻合器的近端侧运动。
在一些实施例中，所述闭合驱动机构还包括保持件和致动杆，所述致动杆包括按压部，所述滑块和所述按压部的初始位置均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，所述活动把手驱动所述致动杆向所述吻合器的远端侧运动，所述致动杆的按压部向下压迫所述保持件与所述滑块嵌合；
所述吻合器击发完成后，所述致动杆的按压部不再压迫所述保持件，所述保持件向上运动以与所述滑块脱离，所述驱动部在所述偏置件的变形恢复力作用下向所述吻合器的远端侧运动。
本揭露实施例还提供一种医用吻合器，包括上述的闭合驱动机构。
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，增设了一个单向空气阻尼结构，在钉头部闭合驱动时，单向阀打开使得空腔部与外部空气连通，通过驱动部带动闭合拉片向吻合器近端侧运动可以驱动钉头部闭合；在吻合器击发完成后，单向阀关闭，驱动部向吻合器远端侧的运动压缩空腔部内的空气，驱动部受到被压缩空气的阻力而减缓运动，使得钉头部可以缓慢打开，避免钳口打开的力过大而伤害周围组织。
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是图2中去除筒体之后的结构示意图；
图4是本揭露第一实施例的初始状态下闭合驱动机构的结构示意图；
图5是本揭露第一实施例的初始状态下筒体和驱动部的位置关系示意图；
图6是本揭露第一实施例的初始状态下闭合驱动机构的俯视图；
图7是图6中A1-A1方向的剖视图；
图8是本揭露第一实施例的击发过程中筒体和驱动部的位置关系示意图；
图9是本揭露第一实施例的击发过程中闭合驱动机构的俯视图；
图10是图9中A2-A2方向的剖视图；
图11是本揭露第一实施例的击发完成后筒体和驱动部的位置关系示意图；
图12是本揭露第二实施例的初始状态下闭合驱动机构的结构示意图；
图13是本揭露第三实施例的初始状态下闭合驱动机构的结构示意图；
图14是本揭露第四实施例的初始状态下闭合驱动机构的结构示意图；
图15是本揭露第五实施例的初始状态下闭合驱动机构的结构示意图；
图16是本揭露第六实施例的闭合驱动机构与吻合器的壳体相配合的结构示意图；
图17是图16中去除吻合器壳体后的结构示意图；
图18是图17中去除筒体后的结构示意图；
图19是本揭露第六实施例的初始状态下闭合驱动机构的结构示意图；
图20是本揭露第六实施例的初始状态下闭合驱动机构的俯视图；
图21是图20中A1-A1方向的剖视图；
图22是本揭露第六实施例的钉头部闭合后闭合驱动机构的结构示意图；
图23是本揭露第六实施例的钉头部闭合后闭合驱动机构的俯视图；
图24是图23中A2-A2方向的剖视图；
图25是本揭露第六实施例的吻合器击发完成后闭合驱动机构的结构示意图；
图26是本揭露第七实施例的初始状态下闭合驱动机构的结构示意图；
图27是本揭露第七实施例的钉头部闭合后闭合驱动机构的结构示意图；
图28是本揭露第八实施例的闭合驱动机构的结构示意图；
图29是本揭露第九实施例的闭合驱动机构的结构示意图；
图30是本揭露第十实施例的闭合驱动机构的结构示意图；
图31是本揭露第十一实施例的闭合驱动机构的结构示意图。
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驱动部和筒体，所述驱动部与所述吻合器的闭合拉片相连接，可拉动所述闭合拉片沿所述吻合器的轴向运动。
所述筒体的内部形成一空腔部，所述空腔部设置有单向阀，由此所述驱动部和所述筒体共同形成一个空气阻尼结构。所述单向阀在受到第一方向的力时会打开，使得所述空腔部与外部空气相连通，而所述单向阀在受到第二方向的力时会闭合，使得所述空腔部成为一个与外部空气不连通的密闭空腔。
在吻合器击发之前，操作者需要先将钉仓和钉砧闭合，以夹紧组织。此时，所述驱动部向所述吻合器的近端侧运动时，由于所述驱动部的远端侧壁与所述筒体的远端侧壁之间的距离增大，所述空腔部体积增大，所述单向阀受到第一方向的力而打开，所述驱动部带动所述闭合拉片向所述吻合器的近端侧运动，从而驱动所述吻合器的钉头部闭合。由于在这个过程中，单向阀打开形成空气流通通道，随着驱动部向近端侧的运动，空腔部内不断进入空气以填充增大的体积，从而不会对钉头部的闭合过程造成阻碍。
在所述吻合器击发完成之后，所述驱动部向所述吻合器的远端侧运动，由于所述驱动部的远端侧壁与所述筒体的远端侧壁之间的距离减小，此时所述空腔部体积减小，所述单向阀受到第二方向的力而闭合，所述驱动部带动所述闭合拉片向所述吻合器的远端侧运动，以驱动所述吻合器的钉头部打开。由此在这个过程中，单向阀闭合而使得空腔部成为一个密闭的空腔，空腔部内的空气随着空腔部体积的减小而被压缩，驱动部向吻合器的远端侧的运动会受到压缩后空气的阻力，从而减缓驱动部的运动速度，使得所述吻合器的钉头部可以缓慢打开，从而避免钳口打开的力过大而伤害周围组织。
下面结合附图来进一步介绍本揭露的具体实施方式中的闭合驱动机构和吻合器的结 构。其中，图1～15示出了驱动部相对于筒体的近端侧可轴向运动的多个实施例，图16～图31示出了驱动部与筒体的近端侧固定连接的多个实施例。
图1～11示出了本揭露第一实施例的闭合驱动机构的结构。在第一实施例中，驱动部61为一个一体设置的部件。图12、图13、图14和图15分别示出了本揭露第二实施例、第三实施例、第四实施例和第五实施例的闭合驱动机构的结构，在该四个实施例中，驱动部包括两个分开设置的部件：第一驱动件611和第二驱动件612。
如图1～7所示，示出了第一实施例中处于初始状态下时所述闭合驱动机构的结构。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。
如图1～4所示，所述闭合驱动机构包括驱动部61和筒体71，所述驱动部61的远端侧与所述闭合拉片12相连接，所述驱动部61可带动所述闭合拉片12沿所述吻合器的轴向方向运动。所述驱动部61位于所述筒体71的近端侧，且所述驱动部61至少部分位于所述筒体71的内部。所述筒体71的内壁与所述驱动部61之间围成一空腔部74，所述空腔部74设置有单向阀73。在该实施例中，所述单向阀73设置于所述筒体71的远端侧。所述单向阀73受到从所述吻合器的远端侧向近端侧的力时，所述单向阀73打开，所述单向阀73受到从所述吻合器的近端侧向远端侧的力时，所述单向阀73闭合。所述驱动部61相对于所述筒体71的近端侧可沿所述吻合器的轴向方向运动，以改变所述空腔部74的体积大小，因此，所述驱动部61相当于与所述筒体71配合的活塞部。
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。上方或向上的方向是相对于致动杆2，朝向背离所述齿条23的一侧，下方或者向下的方向与之相反。例如，在图1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的近端侧为图中右边一端，在图1和图2的视角中，向上的方向是指图中上方一端。如图1和图5所示，所述闭合驱动机构还包括套管14，所述闭合拉片12设置于所述套管14的内部。所述套管14沿所述吻合器的轴向方向延伸。所述筒体71和所述驱动部61都套设在所述套管14的外部。如图1和图2所示，在该实施例中，所述筒体71的外壁设置有至少一固定槽711，所述吻合器的壳体13设置有与所述固定槽711相配合的固定梁15，从而保持在吻合器操作过程中，筒体71相对于所述壳体13的位置稳定。在其他可替代的实施方式中，也可以所述筒体71的外壁设置有至少一固定梁，所述吻合器的壳体13设置有与所述固定梁相配合的固定槽，以此固定所述筒体71。在其他可替代的实施方式中，也可以在筒体71的外壁设置固定槽，吻合器的壳体13设置相配合的固定梁，或者，筒体71和壳体13也可以采用其他固定结构相对固定，如相互配合的凸台和凹槽。此外，在其他可替代的实施方式中，所述筒体71也可以不固定于壳体13，而活动设置于所述吻合器的壳体13中，或所述筒体71固定于所述套筒14上等，均属于本揭露的保护范围之内。所述筒体71还可以本身是壳体13的一部分，即所述筒体71与所述壳体13一体成型，在本实施方式中，壳体13分成两部分即第一壳体13、第二壳体(图中未示出)，相应地，所述筒体71包括设置在所述第一壳体13上的第一筒体及第二壳体上的第二筒体；当所述第一壳体13与所述第二壳 体扣合在一起时，所述第一筒体与所述第二筒体扣合成相应的筒体71。
如图3所示，为了实现所述驱动部61的外壁与所述筒体71的内壁之间更好的密封效果，优选在所述驱动部61的外壁和所述筒体71的内壁之间设置第一密封件62，具体为第一密封圈62，该第一密封圈62可以采用橡胶、塑胶等柔性材料制成。在本揭露其他可选的实施方式中，也可以不设置该第一密封圈62，而将驱动部61或筒体71中的一个选择用柔性材料制成，以实现筒体71的内壁与驱动部61的外壁的密封贴合。设置有第一密封圈62，或者将驱动部61或筒体71中的一个选择用柔性材料制成不但可以起到密封作用，还可以增大所述驱动部61与所述筒体71间相对运动时的摩擦力，使钳口打开及闭合过程缓和稳定。
如图5所示，进一步地，为了更好地实现所述空腔部74的密闭性，将所述筒体71与所述套管14密封连接，在所述套管14的外壁和所述筒体71套设在所述套管14上的开口内壁之间优选设置有第二密封件72，具体为第二密封圈72，该第二密封圈72可以采用橡胶、塑胶等柔性材料制成。
如图5～7所示，所述闭合驱动机构还包括活动把手3、偏置件、拉绳51、转向支撑梁52和第一滑块41，为了减小拉绳51运动时的阻力，转向支撑梁52优选采用滑轮结构。所述偏置件给所述驱动部61一个朝向吻合器远端侧的偏置力。在该实施例中，所述偏置件为设置于所述驱动部61的近端侧的第一压簧63，在其他可替换的实施方式中，所述偏置件也可以采用拉簧、弹片等结构，而不限于此。
所述第一滑块41的侧面设置有第二凹槽412，所述拉绳51的一端设置于所述第二凹槽412中，所述拉绳51的另一端固定于所述驱动部61，从而实现所述第一滑块41和所述驱动部61的联动。此外，通过所述转向支撑梁52实现将所述第一滑块41的运动传递至所述驱动部61后，所述第一滑块41的运动方向与所述驱动部61的运动方向相反。
如图5所示，所述闭合驱动机构还包括保持件和致动杆2，所述致动杆2沿所述吻合器的轴向方向延伸。所述保持件包括第二滑块42和第三滑块43，第三滑块43的下方设置有第二压簧44。所述致动杆2包括按压部21和击发件22，在初始状态下，所述第一滑块41和所述按压部21的初始位置均位于所述保持件的近端侧。
如图8～10所示，示出了在第一实施例中，驱动所述吻合器的钉头部闭合时，所述闭合驱动机构的结构。在该实施例中，在初始状态下，握持所述活动把手3，所述活动把手3通过连杆32驱动所述第一滑块41向吻合器的远端侧运动，同时，所述活动把手3通过卡爪31驱动所述致动杆2向吻合器的远端侧运动。
所述第一滑块41向吻合器的远端侧运动时，通过拉绳51拉动所述驱动部61向所述吻合器的近端侧运动，所述驱动部61压迫所述第一压簧63产生压缩变形，所述驱动部61同时带动所述闭合拉片12向吻合器的近端侧运动，以驱动所述钉头部闭合。
在所述钉头部闭合的过程中，由于驱动部61的远端侧壁与所述筒体71的远端侧壁的距离随着驱动部件61向远端侧的运动而逐渐增大，所述驱动部61和所述筒体71所围成的空腔部74体积逐渐增大，所述单向阀73受到朝向吻合器近端侧方向的力而打开，形成所述空腔部74与外部空气的连通通道。因此，在钉头部闭合的过程中，该单向空气阻尼结构并不会对驱动部61的运动产生阻碍，钉头部可以正常闭合而夹持组织。
如图8所示，在钉头部闭合时，所述第一滑块41运动至保持件的下方，同时致动杆2的按压部21(该图中未示出)接触保持件中第三滑块43的上方并向下压迫第三滑块43， 使得第三滑块43中的第二滑块42部分进入到第一滑块41上表面的第一凹槽411中，以保持在吻合器击发过程中，第一滑块41位置的稳定性。此时，在第三滑块43的作用下，第二压簧44产生压缩变形。在这个过程中，由于第一滑块41通过拉绳51对驱动部61所施加的朝向吻合器近端侧方向的拉力对于所述第一压簧63的变形恢复力，驱动部61在拉绳51的拉动下保持在图10中的位置，从而保持在吻合器击发过程中，钉头部闭合的稳定性。
此处第一滑块41和保持件的配合方式仅为一种实施方式，在其他可替代的实施方式中，也可以在保持件的下表面设置向上凹陷的凹槽，在致动杆2的按压部21向下压迫保持件时，保持件向下运动而使得第一滑块41的上端进入到所述保持件的凹槽中，实现保持件和第一滑块41的嵌合。
如图11所示，示出了在第一实施例中，所述吻合器击发完成后，所述闭合驱动机构的结构。此时，所述致动杆2的按压部21(该图中未示出)不再向下压迫第三滑块43，第三滑块43在第二压簧44的变形恢复力作用下向上运动，而带动第二滑块42向上运动以与第一滑块41的第一凹槽411脱离。第一滑块41失去了保持件的保持作用，可以自由活动，而不再对驱动部61施加朝向吻合器近端侧的拉力。此时，在第一压簧63的变形恢复力作用下，所述驱动部61向吻合器的远端侧运动，带动所述闭合拉片12向吻合器的远端侧运动，以驱动所述吻合器的钉头部打开。
在吻合器的钉头部打开的过程中，随着所述驱动部61向所述吻合器的远端侧运动，所述驱动部61的远端侧壁与所述筒体71的远端侧壁的距离逐渐减小，所述空腔部74体积逐渐减小，所述单向阀73受到朝向吻合器远端侧方向的力而闭合。此时，所述空腔部74与外部空气不连通，空气随空腔部74体积的减小而逐渐被压缩，所述驱动部61向所述吻合器的远端侧的运动会受到被压缩的空气的阻力，从而减缓所述驱动部61的运动速度，所述吻合器的钉头部缓慢打开。在其他可替代的实施方式中，也可以所述空腔部74的侧壁还开设有一个与空气连通的小气孔，该小气孔只能在空腔部74体积减小时十分缓慢地向外部泄气，然而该小气孔的泄气速度比不上空气被压缩的速度，因此空气仍然对驱动部61向远端侧的运动产生阻力。
此外，由于驱动部61的外壁和筒体71的内壁之间设置有第一密封圈62，第一密封圈62和筒体71的接触表面对于驱动部61朝向吻合器远端侧方向的运动也存在一定的阻尼，更有利于减缓驱动部61的运动速度。
图12～图15所示，分别为本揭露第二实施例、第三实施例、第四实施例和第五实施例的闭合驱动机构的结构示意图。该四个实施例与第一实施例的区别在于，所述活塞部64和所述驱动部61分体设置为两个相互连接的部件。所述活塞部64位于所述筒体71的近端侧，所述活塞部64的尺寸与所述筒体71的内壁尺寸相配合，以与所述筒体71形成密封连接，所述驱动部61的形状和尺寸则不限于图14中示出的形状和尺寸，只需要满足将所述活塞部64的运动传递至所述闭合拉片12即可。
如图12所示，在第二实施例中，驱动部61包括第一驱动件611和第二驱动件612，所述第一驱动件611至少部分位于筒体71的空腔部中，与筒体71的内壁配合而起到活塞部的作用，且第二驱动件612连接于第一驱动件611与闭合拉片12之间，而第一驱动件611与拉绳51相连接。第二驱动件612的尺寸可以相对于第一驱动件611较小，由此第二驱动件612与筒体71未形成密封连接，而第一驱动件611的外侧壁与筒体71的内壁之 间形成密封连接，第二驱动件612在空腔部中的运动不会影响空腔部本身的体积变化，而只有第一驱动件611朝向吻合器远端侧和吻合器近端侧的运动才会引起空腔部体积的减小和增大。第一驱动件611优选可以采用柔性材料或在第一驱动件611和筒体71的内壁之间设置第一密封圈62，不但可以起到密封作用，还可以增大所述第一驱动件611与所述筒体71间相对运动时的摩擦力，使钳口打开及闭合过程缓和稳定。
所述第一驱动件611在所述拉绳51的作用下向所述吻合器的近端侧运动时，由于所述第一驱动件611的远端侧壁与所述筒体71的远端侧壁之间的距离增大，所述空腔部体积增大，所述单向阀73受到朝向近端侧的力而打开，所述第一驱动件611带动所述第二驱动件612向所述吻合器的近端侧运动，以带动所述吻合器的闭合拉片12向吻合器的近端侧运动，从而驱动所述吻合器的钉头部闭合，同时，所述第一驱动件611压缩近端侧的第一压簧63产生变形。所述第一驱动件611在所述第一压簧63的变形恢复力作用下向所述吻合器的远端侧运动时，由于所述第一驱动件611的远端侧壁与所述筒体71的远端侧壁之间的距离减小，此时所述空腔部体积减小，所述单向阀73受到朝向远端侧的力而闭合，所述第一驱动件611带动所述第二驱动件612向所述吻合器的远端侧运动，第二驱动件612带动闭合拉片12向吻合器远端侧运动，以驱动所述吻合器的钉头部打开。在这个过程中，空腔部内的空气随着空腔部体积的减小而被压缩，第一驱动件611向吻合器的远端侧的运动会受到压缩后空气的阻力，从而减缓活塞部的运动速度，使得所述吻合器的钉头部可以缓慢打开，从而避免钳口打开的力过大而伤害周围组织。
如图13所示，在第三实施例中，与第二实施例的区别在于，第二驱动件612位于筒体71的远端侧，且第二驱动件612与第一驱动件611之间通过连接杆65进行连接，由于第二驱动件612在筒体71的外部，第二驱动件612的移动也不会对空腔部的体积造成影响。如图14所示，在第四实施例中，与第三实施例的区别在于，第一压簧63未设置于第一驱动件611的近端侧，而是设置于第二驱动件612的近端侧与筒体71之间，并且可以套设在连接杆65上。同样地，在第一驱动件611向近端侧运动时，拉动闭合驱动件61向近端侧运动，闭合驱动件61会压缩第一压簧63变形。在第一驱动件611受到的拉绳51向近端侧的拉力消除后，第二驱动件612在第一压簧63的变形恢复力作用下向远端侧运动，并带动拉片12和第一驱动件611向远端侧运动。
如图15所示，为本揭露第五实施例的闭合驱动机构的结构示意图。该实施例与图12～13示出的两个实施例的区别在于，拉片12和第一驱动件611并不是同轴设置的，第二驱动件612可以与第一驱动件611的侧壁固定连接。该实施例中，第二驱动件612和第一驱动件611的工作原理与图12和图13中示出的实施例相同，在此不予赘述。在第五实施例的基础上，所述筒体71及所述第一驱动件611可以是设置为至少两组，所述第二驱动件612同时与多个所述第一驱动件611固定连接，多个所述单向阀73分别设于各个所述筒体71的所述空腔部74。
在图1～图15中示出的各个实施例中，所述筒体71优选采用不易变形的材料制成，例如硬度较大的塑料、金属等，从而可以保证筒体71的结构稳定性和位置稳定性。但本揭露不限于此，图1～15的各个实施例也可以与具有一定柔性或弹性的筒体71配合使用，均属于本揭露的保护范围之内。
下面结合图16～图31来进一步介绍采用可变形筒体时的各个实施例，其中，驱动部与筒体的近端侧相连接，可带动所述筒体的近端侧沿吻合器的轴向方向运动，随着所述筒 体的侧壁的长度变化，所述空腔部的体积也发生变化。具体地，所述驱动部向所述吻合器的近端侧运动时，分别带动所述闭合拉片和所述筒体的近端侧向所述吻合器的近端侧运动，所述筒体沿所述吻合器的轴向方向的长度伸长，所述空腔部的体积增大，所述单向阀打开；所述驱动部向所述吻合器的远端侧运动时，分别带动所述闭合拉片和所述筒体的近端侧向所述吻合器的远端侧运动，所述筒体沿所述吻合器的轴向方向的长度缩短，所述空腔部的体积减小，所述单向阀闭合。
如图16～图21所示，示出了在第六实施例中初始状态下闭合驱动机构和吻合器的结构。在该实施例中，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的内部还设置有沿吻合器的轴向方向延伸的套管14，套管14的内部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，钉砧和钉仓是分离的，闭合拉片12向吻合器近端侧运动时，钉砧和钉仓闭合，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。
如图16～图19所示，所述闭合驱动机构包括驱动部61和筒体71，所述驱动部61和所述筒体71均套设于所述套管14的外部。所述驱动部61与所述吻合器的闭合拉片12相连接，以形成所述驱动部61与所述闭合拉片12的联动，所述驱动部61与所述筒体71的近端侧固定连接，以形成所述驱动部61与所述筒体71的近端侧的联动，所述筒体71是可变形的筒体，其远端侧与吻合器的壳体1相对固定，近端侧则可随驱动部61轴向运动。所述筒体71的内部形成一空腔部74，所述空腔部74设置有单向阀73。
在该实施例中，所述单向阀73设置于所述筒体71的远端侧。所述单向阀73受到从所述吻合器的远端侧向近端侧的力时，所述单向阀73打开，此时所述空腔部74与外部空气是连通的，所述单向阀73受到从所述吻合器的近端侧向远端侧的力时，所述单向阀73闭合，此时空腔部74为一个密闭的空腔。如图19～图21所示，为了更好地实现所述空腔部74的密闭性，将所述筒体71和所述套管14密封连接，在所述套管14的外壁和所述筒体71套设在所述套管14上的开口内壁之间优选设置有密封件72，该密封件72可以为一个密封圈，但本揭露不限于此，该密封件62可以采用橡胶、塑胶等柔性材料制成。
在该实施例中，所述筒体71的侧壁为柔性侧壁，例如侧壁采用塑料、纺织材料等材料制成。在一种优选的实施方式中，可以将所述筒体71的远端侧和近端侧设置为刚性的，而只有筒体71的侧壁是可变形的侧壁。在一种可替代的实施方式中，也可以将所述筒体71的整体均采用柔性材料制成，例如筒体71的整体可以采用塑料、橡胶等材料制成。如图19～图21所示，在初始状态下，所述筒体71的柔性侧壁具有一预先的弯曲变形量。
在该实施例中，所述筒体71的远端侧固定于所述吻合器的壳体13，从而保持所述筒体71的远端侧的位置相对稳定不变。在所述筒体71的近端侧沿吻合器的轴向方向运动时，所述筒体71的远端侧与筒体71的近端侧之间的距离随之改变。
如图18～图21所示，所述闭合驱动机构还包括活动把手3、偏置件、拉绳51、转向支撑梁52和第一滑块41，为了减小拉绳51运动时的阻力，转向支撑梁52优选采用滑轮结构。所述偏置件给所述驱动部61一个朝向吻合器远端侧的偏置力。在该实施例中，所述偏置件为设置于所述驱动部61的近端侧的第一压簧63，在其他可替换的实施方式中，所述偏置件也可以采用拉簧、弹片等结构，而不限于此。
所述第一滑块41的侧面设置有第二凹槽412，所述拉绳51的一端设置于所述第二凹 槽412中，所述拉绳51的另一端固定于所述驱动部61，从而实现所述第一滑块41和所述驱动部61的联动。此外，通过所述转向支撑梁52实现将所述第一滑块41的运动传递至所述驱动部61后，所述第一滑块41的运动方向与所述驱动部61的运动方向相反。
如图18所示，所述闭合驱动机构还包括保持件和致动杆2，所述致动杆2沿所述吻合器的轴向方向延伸。所述保持件包括第二滑块42和第三滑块43，第三滑块43的下方设置有第二压簧44。所述致动杆2包括按压部21和击发件22，在初始状态下，所述第一滑块41和所述按压部21的初始位置均位于所述保持件的近端侧。
如图22～图24所示，示出了在第六实施例中，驱动所述吻合器的钉头部闭合时，所述闭合驱动机构的结构。握持所述活动把手3，所述活动把手3通过连杆32驱动所述第一滑块41向吻合器的远端侧运动，同时，所述活动把手3通过卡爪31驱动所述致动杆2向吻合器的远端侧运动。所述第一滑块41向吻合器的远端侧运动时，通过拉绳51拉动所述驱动部61压迫所述第一压簧63产生压缩变形，所述驱动部61同时带动所述闭合拉片12向吻合器的近端侧运动，以驱动钉砧和钉仓闭合而闭合钉头部。
在所述钉头部的闭合过程中，所述驱动部61同时带动所述筒体71的近端侧向所述吻合器的近端侧运动，所述筒体71的近端侧与所述筒体71的远端侧的距离增大，所述筒体71的弯曲变形量减小，所述筒体71沿所述吻合器的轴向方向的长度伸长，所述空腔部74的体积增大，所述单向阀73受到朝向吻合器近端侧方向的力而打开，形成所述空腔部74与外部空气的连通通道。因此，在钉头部闭合的过程中，该单向空气阻尼结构并不会对驱动部61的运动产生阻碍，钉头部可以正常闭合而夹持组织。
如图22所示，在钉头部闭合时，所述第一滑块41运动至保持件的下方，同时致动杆2的按压部21(该图中未示出)接触保持件中第三滑块43的上方并向下压迫第三滑块43，使得第三滑块43中的第二滑块42部分进入到第一滑块41上表面的第一凹槽411中，以保持在吻合器击发过程中，第一滑块41位置的稳定性。此时，在第三滑块43的作用下，第二压簧44产生压缩变形。在这个过程中，由于第一滑块41通过拉绳51对驱动部61所施加的朝向吻合器近端侧方向的拉力对于所述第一压簧63的变形恢复力，驱动部61在拉绳51的拉动下保持在图22中的位置，从而保持在吻合器击发过程中，钉头部闭合的稳定性。
此处第一滑块41和保持件的配合方式仅为一种实施方式，在其他可替代的实施方式中，也可以在保持件的下表面设置向上凹陷的凹槽，在致动杆2的按压部21向下压迫保持件时，保持件向下运动而使得第一滑块41的上端进入到所述保持件的凹槽中，实现保持件和第一滑块41的嵌合。
如图25所示，示出了在第六实施例中，所述吻合器击发完成后，所述闭合驱动机构的结构。此时，所述致动杆2的按压部21(该图中未示出)不再向下压迫第三滑块43，第三滑块43在第二压簧44的变形恢复力作用下向上运动，而带动第二滑块42向上运动以与第一滑块41的第一凹槽411脱离。第一滑块41失去了保持件的保持作用，可以自由活动，而不再对驱动部61施加朝向吻合器近端侧的拉力。此时，在第一压簧63的变形恢复力作用下，所述驱动部61向吻合器的远端侧运动，带动所述闭合拉片12向吻合器的远端侧运动，以使得所述吻合器的钉砧和钉仓分离而打开钉头部。
在吻合器的钉头部打开的过程中，随着所述驱动部61向所述吻合器的远端侧运动，所述筒体71的近端侧壁与所述筒体71的远端侧壁的距离逐渐减小，所述筒体71沿吻合 器的轴向方向的长度逐渐减小，所述空腔部74体积逐渐减小，所述单向阀73受到朝向吻合器远端侧方向的力而闭合。此时，所述空腔部74与外部空气不连通，空气随空腔部74体积的减小而逐渐被压缩，所述驱动部61向所述吻合器的远端侧的运动会受到被压缩的空气的阻力，从而减缓所述驱动部61的运动速度，所述吻合器的钉头部缓慢打开。在其他可替代的实施方式中，也可以所述空腔部74的侧壁还开设有一个与空气连通的小气孔，该小气孔只能在空腔部74体积减小时十分缓慢地向外部泄气，然而该小气孔的泄气速度比不上空气被压缩的速度，因此空气仍然对驱动部62向远端侧的运动产生阻力。该小气动的开度优选小于所述单向阀73打开时的开度，但本揭露不限于此。
在一种可替代的实施方式中，所述筒体71的侧壁也可以为弹性侧壁，例如采用能够产生拉伸变形，并且拉伸变形后能够恢复原状的橡胶材料等。初始状态下，所述筒体71的侧壁未发生变形，所述驱动部61带动所述筒体71的近端侧向所述吻合器的近端侧运动时，拉动所述筒体71的弹性侧壁发生弹性拉伸变形。在所述驱动部61带动所述筒体71的近端侧向所述吻合器的远端侧运动时，所述筒体71的弹性拉伸变形逐渐减小而使得所述筒体71沿吻合器轴向方向的长度缩短。
如图26和图27所示，为本揭露第七实施例的闭合驱动机构的结构示意图。该实施例与第六实施例的区别在于：第六实施例中，驱动部61位于所述筒体71的内部，所述筒体71的内壁与所述驱动部61围成所述空腔部74；而在第七实施例中，所述驱动部61位于所述筒体71的外部，所述筒体71的内壁围成所述空腔部。在一种可替代的实施方式中，所述驱动部61也可以只有部分位于所述筒体71的内部，而部分位于所述筒体71的外部，均属于本揭露的保护范围之内。
如图28所示，为本揭露第八实施例的闭合驱动机构的结构示意图。该实施例与第六实施例的区别在于：该实施例中筒体71为沿所述吻合器的轴向方向延伸的波纹管，初始状态下，所述波纹管具有一压缩变形量，所述驱动部61向所述吻合器的近端侧运动时，所述波纹管的压缩变形量减小，所述波纹管的轴向长度增大，所述波纹管内部的空腔部的体积增大，所述驱动部61向所述吻合器的远端侧运动时，所述波纹管的压缩变形量增大，所述波纹管的轴向长度减小，所述波纹管内部的空腔部的体积减小。
如图29所示，为本揭露第九实施例的闭合驱动机构的结构示意图。该实施例与第八实施例的区别在于：该实施例中，所述驱动部61位于所述筒体71的外部，所述筒体71的内壁围成所述空腔部。
如图30所示，为本揭露第十实施例的闭合驱动机构的结构示意图。该实施例与第六实施例的区别在于：所述驱动部61包括相连接的第一驱动件611和第二驱动件612，所述第二驱动件612与所述闭合拉片12相连接，所述第一驱动件611与所述筒体71的近端侧相连接。所述第二驱动件612位于所述筒体71的远端侧，且所述第二驱动件612与所述第一驱动件611通过连接杆65相连接。第一压簧63设置于第二驱动件612的近端侧与筒体71之间，并且可以套设在连接杆65上。在第一驱动件611向吻合器的近端侧运动时，拉动第二驱动件612向吻合器的近端侧运动，第二驱动件612压缩第一压簧63变形。在第一驱动件611受到的拉绳51向近端侧的拉力消除后，第二驱动件612在第一压簧63的变形恢复力作用下向远端侧运动，并带动拉片12和第一驱动件611向吻合器的远端侧运动。在第十实施例的基础上，所述筒体71及所述第一驱动件611可以是设置为至少两组，所述第一驱动件61同时与多个所述第一驱动件611固定连接，多个所述单向阀73分别设 于各个所述筒体71的所述空腔部74。
在其他可选的实施方式中，第一驱动件611也可以位于筒体71的外部，在另一种可选的实施方式中，第二驱动件612也可以位于筒体71的内部，而第一压簧63设置于第一驱动件611的近端侧，均属于本揭露的保护范围之内。
如图31所示，为本揭露第十一实施例的闭合驱动机构的结构示意图。该实施例与第十实施例的区别在于：拉片12和第一驱动件611并不是同轴设置的，第二驱动件612可以与第一驱动件611的侧壁固定连接。从图31中可以看出，第一驱动件611和第二驱动件612也可以完全位于71的外部。该实施例中，第二驱动件612和第一驱动件611的工作原理与图30中示出的实施例相同，在此不予赘述。
在上述各个实施例中，筒体71可以作为吻合器的壳体1的一部分，也可以是与吻合器的壳体1固定连接的单独的部件。上述的各个实施例之间的结构特征也可以相互组合，以形成新的技术方案，均属于本揭露的保护范围之内。
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，增设了一个单向空气阻尼结构，在钉头部闭合驱动时，单向阀打开使得空腔部与外部空气连通，通过驱动部带动闭合驱动件向吻合器近端侧运动可以驱动钉头部闭合；在吻合器击发完成后，单向阀关闭，驱动部向吻合器远端侧的运动压缩空腔部内的空气，驱动部受到被压缩空气的阻力而减缓运动，使得钉头部可以缓慢打开，避免钳口打开的力过大而伤害周围组织。
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 (22)

  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驱动部和筒体，所述驱动部与所述吻合器的闭合拉片相连接，所述驱动部位于所述筒体的近端侧，所述筒体的内部形成一空腔部，所述空腔部设置有单向阀；
    所述驱动部向所述吻合器的近端侧运动时，所述空腔部的体积增大，所述单向阀打开，所述驱动部带动所述闭合拉片向所述吻合器的近端侧运动，以驱动所述吻合器的钉头部闭合；
    所述驱动部向所述吻合器的远端侧运动时，所述空腔部的体积减小，所述单向阀闭合，所述驱动部带动所述闭合拉片向所述吻合器的远端侧运动，以驱动所述吻合器的钉头部打开。
  2. 根据权利要求1所述的闭合驱动机构，其特征在于，所述筒体为所述吻合器壳体的一部分。
  3. 根据权利要求1所述的闭合驱动机构，其特征在于，所述单向阀设置于所述筒体的远端侧。
  4. 根据权利要求1所述的闭合驱动机构，其特征在于，所述空腔部还开设有与空气连通的气孔。
  5. 根据权利要求1所述的闭合驱动机构，其特征在于，所述驱动部至少部分位于所述筒体的内部，所述筒体的内壁与所述驱动部围成所述空腔部。
  6. 根据权利要求5所述的闭合驱动机构，其特征在于，所述驱动部相对于所述筒体的近端侧可沿所述吻合器的轴向方向运动。
  7. 根据权利要求6所述的闭合驱动机构，其特征在于，所述驱动部的外壁与所述筒体的内壁之间设置有第一密封件。
  8. 根据权利要求6所述的闭合驱动机构，其特征在于，所述驱动部包括第一驱动件和第二驱动件，所述第一驱动件至少部分位于所述筒体的内部，所述第二驱动件连接于所述第一驱动件与所述闭合拉片之间。
  9. 根据权利要求1所述的闭合驱动机构，其特征在于，所述机构还包括套管，所述筒体和所述驱动部均套设于所述套管上，且所述驱动部可沿所述套管的轴向方向运动；
    所述套管的外壁与所述筒体之间设置有第二密封件。
  10. 根据权利要求1所述的闭合驱动机构，其特征在于，所述筒体的外壁设置有至少一第一固定部，所述吻合器的壳体设置有与所述第一固定部相配合的第二固定部。
  11. 根据权利要求10所述的闭合驱动机构，其特征在于，所述筒体的外壁设置有至少一固定槽，所述吻合器的壳体设置有与所述固定槽相配合的固定梁；
    或
    所述筒体的外壁设置有至少一固定梁，所述吻合器的壳体设置有与所述固定梁相配合的固定槽。
  12. 根据权利要求1所述的闭合驱动机构，其特征在于，所述驱动部与所述筒体的近端侧相连接，所述驱动部沿所述吻合器的轴向方向运动时，带动所述筒体的近端侧沿所述吻合器的轴向方向运动，以改变所述筒体沿所述吻合器的轴向方向的长度。
  13. 根据权利要求12所述的闭合驱动机构，其特征在于，所述驱动部包括第一驱动件和第二驱动件，所述第一驱动件与所述筒体的近端侧相连接，所述第二驱动件连接于所 述第一驱动件与所述闭合拉片之间。
  14. 根据权利要求12所述的闭合驱动机构，其特征在于，所述筒体的侧壁为柔性侧壁，初始状态下，所述筒体的柔性侧壁具有一弯曲变形量，所述驱动部向所述吻合器的近端侧运动时，所述柔性侧壁的弯曲变形量减小。
  15. 根据权利要求12所述的闭合驱动机构，其特征在于，所述筒体的侧壁为弹性侧壁，所述驱动部带动所述筒体的近端侧向所述吻合器的近端侧运动时，拉动所述筒体的弹性侧壁发生弹性变形。
  16. 根据权利要求12所述的闭合驱动机构，其特征在于，所述筒体为沿所述吻合器的轴向方向延伸的波纹管，初始状态下，所述波纹管具有一压缩变形量，所述驱动部向所述吻合器的近端侧运动时，所述波纹管的压缩变形量减小。
  17. 根据权利要求12所述的闭合驱动机构，其特征在于，所述筒体的远端侧固定于所述吻合器的壳体。
  18. 根据权利要求1所述的闭合驱动机构，其特征在于，还包括偏置件和拉绳，所述偏置件和所述拉绳分别与所述驱动部相连接；
    驱动所述吻合器的钉头部闭合时，所述拉绳拉动所述驱动部向所述吻合器的近端侧运动，所述偏置件产生变形；
    驱动所述吻合器的钉头部打开时，所述驱动部在所述偏置件的变形恢复力作用下向所述吻合器的远端侧运动。
  19. 根据权利要求18所述的闭合驱动机构，其特征在于，所述偏置件为设置于所述驱动部的近端侧的压簧。
  20. 根据权利要求18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活动把手、滑块和转向支撑梁，所述拉绳套设于所述转向支撑梁上，且所述拉绳的两端分别连接于所述滑块和所述驱动部；
    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滑块向所述吻合器的远端侧运动，所述滑块通过所述拉绳拉动所述驱动部向所述吻合器的近端侧运动。
  21. 根据权利要求20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保持件和致动杆，所述致动杆包括按压部，所述滑块和所述按压部的初始位置均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，所述活动把手驱动所述致动杆向所述吻合器的远端侧运动，所述致动杆的按压部向下压迫所述保持件与所述滑块嵌合；
    所述吻合器击发完成后，所述致动杆的按压部不再压迫所述保持件，所述保持件向上运动以与所述滑块脱离，所述驱动部在所述偏置件的变形恢复力作用下向所述吻合器的远端侧运动。
  22. 一种医用吻合器，其特征在于，包括权利要求1至21中任一项所述的闭合驱动机构。
PCT/CN2020/111792 2019-08-29 2020-08-27 闭合驱动机构及包括其的医用吻合器 WO2021037154A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU2020335820A AU2020335820B2 (en) 2019-08-29 2020-08-27 Closure driving mechanism and medical stapler including the same .
KR1020227008262A KR20220047999A (ko) 2019-08-29 2020-08-27 폐쇄 구동기구 및 이를 포함하는 의료용 스테이플러
EP20856653.9A EP4023169A4 (en) 2019-08-29 2020-08-27 CLOSURE DRIVE MECHANISM AND MEDICAL STAPLER INCLUDING SAME
CA3151254A CA3151254A1 (en) 2019-08-29 2020-08-27 Closure driving mechanism and medical stapler including the same
US17/634,783 US20220323068A1 (en) 2019-08-29 2020-08-27 Closure driving mechanism and medical stapler including the same
JP2022512732A JP7345056B2 (ja) 2019-08-29 2020-08-27 閉合駆動機構及びそれを含む医療用ステープラー
BR112022002758A BR112022002758A2 (pt) 2019-08-29 2020-08-27 Mecanismo de acionamento de fechamento e grampeador médico incluindo o mesmo

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN201910807054.1 2019-08-29
CN201921425089.0 2019-08-29
CN201921424809.1 2019-08-29
CN201910806840.XA CN112438766A (zh) 2019-08-29 2019-08-29 闭合驱动机构及包括其的医用吻合器
CN201921424809.1U CN210990509U (zh) 2019-08-29 2019-08-29 闭合驱动机构及包括其的医用吻合器
CN201921425089.0U CN210990511U (zh) 2019-08-29 2019-08-29 闭合驱动机构及包括其的医用吻合器
CN201910806840.X 2019-08-29
CN201910807054.1A CN112438767A (zh) 2019-08-29 2019-08-29 闭合驱动机构及包括其的医用吻合器

Publications (1)

Publication Number Publication Date
WO2021037154A1 true WO2021037154A1 (zh) 2021-03-04

Family

ID=74684920

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/111792 WO2021037154A1 (zh) 2019-08-29 2020-08-27 闭合驱动机构及包括其的医用吻合器

Country Status (8)

Country Link
US (1) US20220323068A1 (zh)
EP (1) EP4023169A4 (zh)
JP (1) JP7345056B2 (zh)
KR (1) KR20220047999A (zh)
AU (1) AU2020335820B2 (zh)
BR (1) BR112022002758A2 (zh)
CA (1) CA3151254A1 (zh)
WO (1) WO2021037154A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113558695A (zh) * 2021-08-16 2021-10-29 苏州法兰克曼医疗器械有限公司 一种减少传动控制间隙的电动吻合器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339723A (en) * 1993-09-30 1994-08-23 Ethicon, Inc. Pressurized fluid actuation system for amplifying operator input force in a surgical instrument
CN106175863A (zh) * 2016-06-22 2016-12-07 姜言 消化道内科用吻合器装置
CN106821440A (zh) * 2017-02-28 2017-06-13 苏州法兰克曼医疗器械有限公司 一种气动吻合器及其驱动装置
CN109310427A (zh) * 2016-04-18 2019-02-05 伊西康有限责任公司 用于操作外科器械的方法
CN210990511U (zh) * 2019-08-29 2020-07-14 天臣国际医疗科技股份有限公司 闭合驱动机构及包括其的医用吻合器
CN210990509U (zh) * 2019-08-29 2020-07-14 天臣国际医疗科技股份有限公司 闭合驱动机构及包括其的医用吻合器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782396A (en) * 1995-08-28 1998-07-21 United States Surgical Corporation Surgical stapler
US7559452B2 (en) 2005-02-18 2009-07-14 Ethicon Endo-Surgery, Inc. Surgical instrument having fluid actuated opposing jaws
US20070194082A1 (en) 2005-08-31 2007-08-23 Morgan Jerome R Surgical stapling device with anvil having staple forming pockets of varying depths
US7246734B2 (en) 2005-12-05 2007-07-24 Ethicon Endo-Surgery, Inc. Rotary hydraulic pump actuated multi-stroke surgical instrument
US8308040B2 (en) 2007-06-22 2012-11-13 Ethicon Endo-Surgery, Inc. Surgical stapling instrument with an articulatable end effector
US9192431B2 (en) * 2010-07-23 2015-11-24 Ethicon Endo-Surgery, Inc. Electrosurgical cutting and sealing instrument
US8893949B2 (en) 2010-09-30 2014-11-25 Ethicon Endo-Surgery, Inc. Surgical stapler with floating anvil
AU2012250197B2 (en) 2011-04-29 2017-08-10 Ethicon Endo-Surgery, Inc. Staple cartridge comprising staples positioned within a compressible portion thereof
US11154300B2 (en) * 2015-07-30 2021-10-26 Cilag Gmbh International Surgical instrument comprising separate tissue securing and tissue cutting systems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339723A (en) * 1993-09-30 1994-08-23 Ethicon, Inc. Pressurized fluid actuation system for amplifying operator input force in a surgical instrument
CN109310427A (zh) * 2016-04-18 2019-02-05 伊西康有限责任公司 用于操作外科器械的方法
CN106175863A (zh) * 2016-06-22 2016-12-07 姜言 消化道内科用吻合器装置
CN106821440A (zh) * 2017-02-28 2017-06-13 苏州法兰克曼医疗器械有限公司 一种气动吻合器及其驱动装置
CN210990511U (zh) * 2019-08-29 2020-07-14 天臣国际医疗科技股份有限公司 闭合驱动机构及包括其的医用吻合器
CN210990509U (zh) * 2019-08-29 2020-07-14 天臣国际医疗科技股份有限公司 闭合驱动机构及包括其的医用吻合器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113558695A (zh) * 2021-08-16 2021-10-29 苏州法兰克曼医疗器械有限公司 一种减少传动控制间隙的电动吻合器
CN113558695B (zh) * 2021-08-16 2022-06-24 苏州法兰克曼医疗器械有限公司 一种减少传动控制间隙的电动吻合器

Also Published As

Publication number Publication date
AU2020335820B2 (en) 2023-05-11
US20220323068A1 (en) 2022-10-13
EP4023169A1 (en) 2022-07-06
KR20220047999A (ko) 2022-04-19
CA3151254A1 (en) 2021-03-04
JP2022545293A (ja) 2022-10-26
AU2020335820A1 (en) 2022-03-03
BR112022002758A2 (pt) 2022-08-09
EP4023169A4 (en) 2023-09-06
JP7345056B2 (ja) 2023-09-14

Similar Documents

Publication Publication Date Title
US10751052B2 (en) Surgical device with overload mechanism
JP5436754B2 (ja) 関節運動式エンドエフェクタを有する外科用器械
WO2022200958A3 (en) Stapling instrument comprising tissue compression systems
US9888923B2 (en) Firing assembly for surgical stapler and surgical stapler
JP2014527422A (ja) 腹腔鏡手術用グラスパ
KR20060107393A (ko) 가이드형 측방향 이동 관절 연결 부재를 갖는 수술 도구
WO2021037154A1 (zh) 闭合驱动机构及包括其的医用吻合器
CN210990511U (zh) 闭合驱动机构及包括其的医用吻合器
CN210990509U (zh) 闭合驱动机构及包括其的医用吻合器
CN112438767A (zh) 闭合驱动机构及包括其的医用吻合器
RU2790316C1 (ru) Закрывающий приводной механизм и медицинский сшиватель, содержащий этот механизм
CN112438766A (zh) 闭合驱动机构及包括其的医用吻合器
JP7454652B2 (ja) 閉合駆動機構及びそれを含む医療用ステープラー
CN112438765A (zh) 闭合驱动机构及包括其的医用吻合器
JP7282979B2 (ja) 閉鎖駆動機構及びそれを含む医療用吻合器
CN112438764A (zh) 闭合驱动机构及包括其的医用吻合器
CN203029297U (zh) 吻合器用击发组件及吻合器

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: 20856653

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 3151254

Country of ref document: CA

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112022002758

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 2022512732

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020335820

Country of ref document: AU

Date of ref document: 20200827

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20227008262

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2020856653

Country of ref document: EP

Effective date: 20220329

REG Reference to national code

Ref country code: BR

Ref legal event code: B01E

Ref document number: 112022002758

Country of ref document: BR

Free format text: APRESENTAR, EM ATE 60 (SESSENTA) DIAS, A TRADUCAO SIMPLES DA FOLHA DE ROSTO DA CERTIDAO DE DEPOSITO DAS PRIORIDADES CN 201910807054.1 DE 29/08/2019, CN 201921425089.0 DE 29/08/2019, CN 201910806840.X DE 29/08/2019 E CN 201921424809.1 DE 29/08/2019 OU DECLARACAO CONTENDO, OBRIGATORIAMENTE, TODOS OS DADOS IDENTIFICADORES DESTAS CONFORME O ART. 15 DA PORTARIA 39/2021. O DOCUMENTO APRESENTADO NAO ESTA TRADUZIDO E A DECLARACAO APRESENTADA NAO POSSUI TODOS OS DADOS IDENTIFICADORES NECESSARIOS.

ENP Entry into the national phase

Ref document number: 112022002758

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20220214