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WO2023030356A1 - 钉仓组件及医用吻合器 - Google Patents

钉仓组件及医用吻合器 Download PDF

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Publication number
WO2023030356A1
WO2023030356A1 PCT/CN2022/116033 CN2022116033W WO2023030356A1 WO 2023030356 A1 WO2023030356 A1 WO 2023030356A1 CN 2022116033 W CN2022116033 W CN 2022116033W WO 2023030356 A1 WO2023030356 A1 WO 2023030356A1
Authority
WO
WIPO (PCT)
Prior art keywords
staple
nail
staple cartridge
strip body
cartridge assembly
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2022/116033
Other languages
English (en)
French (fr)
Inventor
单腾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Touchstone International Medical Science Co Ltd
Original Assignee
Touchstone International Medical Science Co Ltd
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 CN202111015426.0A external-priority patent/CN115886910B/zh
Application filed by Touchstone International Medical Science Co Ltd filed Critical Touchstone International Medical Science Co Ltd
Priority to AU2022340511A priority Critical patent/AU2022340511B2/en
Priority to JP2024513545A priority patent/JP7618912B2/ja
Priority to US18/687,579 priority patent/US12426877B2/en
Priority to KR1020247008161A priority patent/KR20240044488A/ko
Priority to EP22863491.1A priority patent/EP4397252A4/en
Priority to CA3230811A priority patent/CA3230811A1/en
Publication of WO2023030356A1 publication Critical patent/WO2023030356A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B17/0644—Surgical staples, i.e. penetrating the tissue penetrating the tissue, deformable to closed position
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00004—(bio)absorbable, (bio)resorbable or resorptive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00831—Material properties
    • A61B2017/00876—Material properties magnetic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07228—Arrangement of the staples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07271—Stapler heads characterised by its cartridge
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07278—Stapler heads characterised by its sled or its staple holder
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07285—Stapler heads characterised by its cutter

Definitions

  • the invention relates to the technical field of medical devices, in particular to a staple cartridge assembly and a medical stapler.
  • a medical stapler generally includes an instrument platform, a firing handle movably connected to the instrument platform, and a nail head mounted on the instrument platform.
  • the nail head can be passed through a small incision in the body with a trocar to access the surgical site.
  • the nail head includes a nail cartridge assembly and a nail anvil which are arranged oppositely.
  • the staple cartridge assembly includes a staple strip, a support for supporting the staple strip, and a staple cartridge cover for accommodating the staple strip and the support, and a firing block is arranged on the proximal side of the staple cartridge cover.
  • the cutter When the stapler is fired, the cutter is pushed to the distal side by the pusher rod, and the cutter drives the firing block to move toward the distal side of the stapler, and the firing block pushes out the staples that are rotatably connected to the staple belt body , and the staple cutting part of the firing block drives the staples to separate from the staple strip body, and the cutter cuts off the tissue located between the staple cartridge assembly and the staple anvil, thereby realizing the firing of the stapler.
  • the inner surface of the staple cartridge cover fits with the upper surface of the staple strip.
  • the height of the staple cutting part at the top of the firing block may be lower than or equal to the height of the upper surface of the staple strip.
  • 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 away from the operator, that is, the end closer to the surgical site is the far side. end side.
  • the inside and outside are relative to the axis of the stapler, the side close to the axis is the inside, and the side away from the axis is the outside.
  • the object of the present invention is to provide a staple cartridge assembly and a medical stapler, by setting a first gap between the first surface of the staple strip body and the second surface of the staple cartridge cover, so that the firing The staple cutting part of the block is higher than the first surface of the staple strip, so that the staple cutting part drives the staples to separate from the staple strip.
  • An embodiment of the present invention provides a staple cartridge assembly for a medical stapler.
  • the staple cartridge assembly includes:
  • a nail belt and a support member the nail belt includes a nail belt body extending in the axial direction of the stapler, the nail belt body is installed on one side of the support member, and the nail belt body includes a nail belt body away from the support member first surface;
  • a staple cartridge cover at least partially covers the first surface of the staple strip body, the staple cartridge cover includes a second surface opposite to the first surface of the staple strip body, the staple strip body There is a first gap between the first surface and the second surface of the cartridge cover;
  • the firing block is movably arranged on the bottom of the staple cartridge cover and can move along the axial direction.
  • the firing block includes a nail cutting part, and the height of the highest point of the nail cutting part is higher than that of the nail strip body. The height of the first surface.
  • the highest point of the staple cutting portion of the firing block abuts against the second surface of the cartridge cover.
  • the height of the lowest point of the nail cutting portion of the firing block is lower than the height of the first surface of the nail strip body.
  • the staple belt further includes staples, the staples are rotatably connected to the staple belt through a staple connection part, and the highest point of the staple cutting part of the firing block is higher than the staple connection part. the height of the section.
  • At least one raised portion is further included, the raised portion includes a first portion located between the first surface of the staple strip body and the second surface of the cartridge cover, and the raised portion The height of the first part of the riser is equal to the height of the first gap.
  • the raised portion is located on the supporting member or the staple strip body, and the side surface of the raised portion away from the staple strip body abuts against the second surface of the staple cartridge cover hold.
  • the side surface of the protruding portion away from the staple strip body is in parallel contact with the second surface of the staple cartridge cover.
  • At least one first protrusion is provided on the surface of the support, and the height of the surface of the side of the first protrusion away from the support is higher than the first protrusion of the nail strip body.
  • the height of the surface, the surface of the side of the first protrusion facing away from the support member is against the second surface of the staple cartridge cover.
  • the lateral distance between the inner surface and the outer surface of the first protrusion is smaller than the lateral distance between the inner surface and the outer surface of the nail strip body, and the surface of the nail strip body is set There is at least one mounting hole, and the first protruding part is passed through the mounting hole.
  • the first protrusion is a boss, and the projection of the boss on the first surface of the nail strip body is a rounded rectangle.
  • the staple cartridge assembly includes a plurality of staple strips, the plurality of staple strips are arranged along the axial direction, and the first protrusion is located on the staple strips of two adjacent staple strips. between ontology.
  • the first protrusion is fixedly connected to the nail strip body.
  • the surface of the support member is provided with at least one second protrusion, the second protrusion is located on the proximal side and/or the distal side of the nail strip body, the second The height of the side surface of the raised portion away from the support member is higher than the height of the first surface of the nail belt body, and the second raised portion is away from the side surface of the support member and the nail belt body against the second surface.
  • the second protrusion is fixedly connected to the nail strip body.
  • the surface of the support is also provided with at least one first protrusion distributed along the axial direction, and the side surface of the first protrusion facing away from the support and the second protrusion facing away from the The heights of the surfaces on one side of the support are the same.
  • the first surface of the staple strip body is provided with at least one third protrusion, and the third protrusion is away from the side surface of the staple strip body and the first surface of the staple cartridge cover. The two surfaces are against each other.
  • the second surface of the staple cartridge cover is provided with a fourth protruding portion protruding toward the staple strip, and the fourth protruding portion faces the one side surface of the staple strip body and the staple strip body. The first surface of the nail strip body is resisted.
  • the side surface of the fourth protrusion facing the nail strip body is parallel to the first surface of the nail strip body.
  • the staple cartridge cover further includes a third surface opposite to the second surface, and the lower surface of the firing block is against the third surface of the staple cartridge cover.
  • the staples are degradable and biocompatible staples; and/or, the staples are bioabsorbable and biocompatible staples.
  • the surface of the staple is provided with a biodegradable and bioabsorbable coating with biocompatibility; and/or, the surface of the staple is provided with a magnetic coating, which can Next, the staples are magnetized.
  • An embodiment of the present invention also provides a medical stapler, including the above-mentioned staple cartridge assembly.
  • the invention provides a staple cartridge assembly for a medical stapler.
  • a staple cartridge assembly for a medical stapler.
  • the height is higher than the first surface of the staple belt, which is convenient for the staple cutting part of the firing block to drive the staples to separate from the staple belt, thereby ensuring that when the stapler is fired, the firing block can push the staples to the anvil and close them on the tissue .
  • FIG. 1 is a schematic structural view of a staple cartridge assembly according to a first embodiment of the present invention
  • Fig. 2 is a front view of the staple cartridge assembly according to the first embodiment of the present invention.
  • Fig. 3 is an exploded view of the staple cartridge assembly according to the first embodiment of the present invention.
  • Fig. 4 is a top view of the staple cartridge assembly according to the first embodiment of the present invention.
  • Fig. 5 is the sectional view of A1-A1 direction in Fig. 4;
  • Fig. 6 is the sectional view of A2-A2 direction in Fig. 4;
  • Fig. 7 is a left view of the staple cartridge assembly according to the first embodiment of the present invention.
  • Fig. 8 is a partial schematic diagram of the staple cartridge assembly omitting the staple cartridge cover according to the first embodiment of the present invention
  • Fig. 9 is a partial schematic diagram of the staple cartridge assembly omitting the staple cartridge cover according to the second embodiment of the present invention.
  • Fig. 10 is a schematic diagram of the cooperation between the nail strip and the nail magazine cover according to the second embodiment of the present invention.
  • Fig. 11 is a schematic structural view of the staple cartridge cover according to the third embodiment of the present invention.
  • Fig. 12 is a partial schematic diagram of the staple cartridge assembly omitting the staple cartridge cover according to the third embodiment of the present invention.
  • Fig. 13 is a structural schematic diagram of the cartridge assembly omitting the cartridge cover according to the fourth embodiment of the present invention.
  • Fig. 14 is a schematic structural view of a nail strip according to a fourth embodiment of the present invention.
  • Fig. 15 is a schematic structural view of a support member according to a fourth embodiment of the present invention.
  • Fig. 16 is a partial schematic view of the cartridge assembly omitting the cartridge cover according to the fourth embodiment of the present invention.
  • Fig. 17 is a schematic diagram of the cooperation between the nail belt and the supporting member according to the fifth embodiment of the present invention.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
  • the same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.
  • the invention provides a staple cartridge assembly and a medical stapler comprising the same.
  • the medical stapler includes an instrument platform, a firing handle movably connected to the instrument platform, and a nail head installed on the instrument platform, and the nail head includes a nail cartridge assembly and an anvil that are oppositely arranged.
  • the nail cartridge assembly includes: a nail belt and a support member, the nail belt includes a nail belt body extending in the axial direction of the stapler, the nail belt body is installed on one side of the support member, and the nail belt body Including a first surface facing away from the support member; a nail bin cover, the nail bin cover at least partially covers the first surface of the nail strip body, and the nail bin cover includes a nail bin opposite to the first surface of the nail strip body There is a first gap between the first surface of the staple strip body and the second surface of the staple cartridge cover; and the firing block is movably arranged on the bottom of the staple cartridge cover. In the initial state, The firing block is located on the proximal side of the staple cartridge cover and can move along the axial direction.
  • the firing block includes a nail-cutting portion, and the height of the highest point of the nail-cutting portion is higher than the nail strip body
  • the height of the first surface, the staple cutting part is used to drive the staple to separate from the staple strip body when the stapler is fired.
  • the present invention sets the first gap between the first surface of the nail strip body and the second surface of the nail bin cover, so that the height of the highest point of the nail-cutting part of the firing block is higher than the first surface of the nail strip, which is convenient
  • the staple cutting part of the firing block drives the staples to separate from the staple strip, so that when the stapler is fired, the firing block can push the staples to the anvil and close them on the tissue.
  • the staple cartridge assembly includes a staple strip 2, a support 3 for supporting the staple strip 2, a staple cartridge cover 1 for accommodating the support 3 and the staple strip 2, and at least part of the The firing block 4 in the staple bin cover 1 .
  • the staple strip 2 includes a staple strip body 21 extending along the axial direction and a staple 22 connected to the staple strip body 21, and the staple 22 is rotatably connected to the staple strip through a staple connecting portion 221. Ontology 21.
  • the cartridge assembly further includes a fixing member 5 , and the distal side 31 of the support member 3 and the distal side 11 of the cartridge cover 1 are both fixed to the fixing member 5 .
  • two support members 3, two nail strips 2 and two nail bin covers 1 are provided, and the two nail strips 2 are respectively arranged on the corresponding support members 3, and each of the nail strips 2 Staples 22 are arranged on both sides of the cartridge, and the staple cartridge cover 1 is sheathed on the outside of the support member 3 and the staple strip 2 .
  • the number of the support member 3, the nail strip 2 and the staple bin cover 1 can be changed as required, and is not limited to what is shown in the figure, and the nail strip 2 can also have only one side Setting the staples 22 all falls within the protection scope of the present invention.
  • FIG. 3 only shows part of the staples 22 exemplarily. In practical applications, the number and arrangement of the staples 22 can be selected as required.
  • the nail strip body 21 is installed on one side of the support member 3.
  • the nail strip body 21 is arranged on the upper side of the support member 3.
  • 21 includes a first surface 211 facing away from the support member 3 , that is, the upper surface of the nail strip body 21 is the first surface 211 .
  • the staple cartridge cover 1 at least partially covers the first surface 211 of the staple strip body 21
  • the staple cartridge cover 1 includes a the second surface 13 .
  • the second surface 13 of the staple cartridge cover 1 is the surface opposite to the staple cartridge body 21.
  • the second surface 13 of the staple cartridge cover 1 is the surface of the staple cartridge cover 1.
  • the cartridge cover 1 further includes a fourth surface 15 located outside the second surface 13 , that is, the outer surface of the upper plate of the cartridge cover 1 .
  • the upper plate of the magazine cover 1 is provided with through nail holes 14 .
  • 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 away from the operator, that is, the end closer to the surgical site is the far side.
  • the direction along the axis of the stapler is the axial direction, that is, the direction from the distal side to the proximal side of the stapler, or the direction from the proximal side to the distal side of the stapler.
  • the distal side 11 is the right side
  • the proximal side 12 is the left side. In the viewing angle of FIG.
  • the distal side 31 is the right side
  • the proximal side 32 is the left side.
  • the S1 direction is the direction from the proximal side of the stapler to the distal side
  • the S1 direction or the direction opposite to the S1 direction is defined as the axial direction of the stapler.
  • the S2 direction shown in FIGS. 5-7 is defined as the longitudinal direction, that is, the height direction.
  • the S3 direction perpendicular to the S1 direction and the S2 direction is defined as the horizontal direction, that is, the width direction.
  • the inside and outside are relative to the axis of the stapler
  • the side close to the axis is the inside
  • the side away from the axis is the outside.
  • the firing block 4 is located at the proximal side 12 of the staple cartridge cover 1 in an initial state, and can move along the axial direction. As shown in FIG. 7 and FIG. 8 , the firing block 4 includes a nail cutting part 41 and a nail pushing part 42 , and the nail pushing part 42 is located on the distal side of the nail cutting part 41 .
  • the pusher portion 42 When the stapler is fired, the pusher portion 42 first contacts the staples 22, and pushes the staples 22 to rotate and close, so that the legs of the staples 22 pass from the staple holes 14 of the staple cartridge cover 1 to the Then the staple cutting part 41 contacts with the staple connecting part 221, and performs staple cutting, so that the staple connecting part 221 is disconnected, and the staple 22 is separated from the staple strip body 21, so that The staples 22 can be pushed out from the staple holes 14 of the staple cartridge cover 1 as a whole to be stapled on the tissue. As shown in FIG.
  • the height P1 of the highest point of the staple cutting portion 41 is higher than the height P2 of the first surface 211 of the staple strip body 21 , which is convenient for the staple cutting portion 41 of the firing block 4 to drive the staples 22 and the staples together.
  • the belt 2 is separated, so that it can be ensured that when the stapler is fired, the firing block 4 can push the staples 22 toward the anvil to be closed on the tissue.
  • the highest point of the nail-cutting portion 41 of the firing block 4 abuts against the second surface 13 of the staple cartridge cover 1 , and the nail-cutting portion 41 of the firing block 4
  • the first gap 6 can be utilized to the greatest extent to better drive the staples 22 to separate from the staple strip 2 .
  • the cartridge cover 1 also includes a third surface 16 opposite to the second surface 13 , and the lower surface of the firing block 4 is against the third surface 16 of the cartridge cover 1 .
  • the third surface 16 of the cartridge cover 1 is the upper surface of the lower plate of the cartridge cover 1 .
  • the firing block 4 is kept at a stable position in the height direction by the third surface 16 and the second surface 13 of the staple cartridge cover 1 .
  • the height of the highest point of the nail cutting part 41 of the firing block 4 can also be kept continuously higher than the height of the first surface 211 of the nail belt body 21, ensuring that all The staples 22 can be separated from the staple strip body 21 normally.
  • the height P3 of the lowest point of the nail cutting portion 41 of the firing block 4 is lower than the height P2 of the first surface 211 of the nail strip body 21 .
  • the height P1 of the highest point of the nail cutting portion 41 of the firing block 4 is higher than the height of the nail connecting portion 221 . Therefore, the staple cutting portion 41 of the firing block 4 is at least partially aligned with the staple connecting portion 221 in the axial direction, which can ensure that the staples 22 are completely separated from the staple strip body 21 and stapled to the tissue when the stapler is fired. .
  • At least one first raised portion 33 is provided on the surface of the support member 3 , and the first raised portion 33 faces away from the side surface of the support member 3 (that is, the height of the upper surface of the first raised portion 33) is higher than the height of the first surface 211 of the staple strip body 21, and the upper surface of the first raised portion 33 is in contact with the first surface of the staple cartridge cover 1.
  • the two surfaces 13 are against each other, and the first surface 211 of the staple strip body 21 and the second surface 13 of the staple cartridge cover 1 have the first gap 6.
  • the first protruding portion 33 includes a first portion located between the second surface 13 of the staple cartridge cover 1 and the first surface 211 of the staple strip body 21 and a portion located on the first surface of the staple strip body 21 . 211 and the second part between the upper surface of the support member 3, the height of the first part of the first protrusion 33 is the height of the first protrusion 33 protruding from the nail strip body 21. The height of a portion of the first surface 211 is equal to the height h1 of the first gap 6 .
  • the side surface of the first protruding portion 33 away from the staple strip body 21 is parallel to the second surface 13 of the staple cartridge cover 1 and adheres to each other. Therefore, the stability of the cooperation between the first protruding portion 33 and the nail strip body 21 can be enhanced.
  • the lateral distance between the inner surface and the outer surface of the first protrusion 33 is smaller than the lateral distance between the inner surface and the outer surface of the nail strip body 21 , that is, the The transverse width of the first protrusion 33 is smaller than the transverse width of the nail strip body 21, and at least one mounting hole 212 is provided on the surface of the nail strip body 21, and the first protrusion 33 penetrates the mounting hole 212. In hole 212.
  • the first protrusion 33 is fixedly connected to the mounting hole 212 by welding.
  • the first raised portion 33 is a boss
  • the projection of the boss on the first surface 211 of the nail strip body 21 is a rounded rectangle, that is, the Each corner of the boss is provided with an arc guide surface, and when the nail strip 2 is assembled with the support member 3 , the arc guide surface can better guide the boss into the installation hole 212 .
  • the shape of the first protruding portion 33 here is only an example, and in other alternative embodiments, the first protruding portion 33 can also adopt other shapes, for example, the first protruding portion 33 is in the
  • the projection of the first surface 211 of the nail strip body 21 is a rectangle, or a triangle, a rhombus, a trapezoid, etc., and the area of the upper surface and the area of the lower surface of the first raised portion 33 can also be different, for example, the first The raised portion 33 is a pyramidal structure with a large lower surface area and a smaller upper surface area, which all fall within the protection scope of the present invention.
  • the number of the first protrusions 33 and the installation holes 212 may be provided in a one-to-one correspondence, or the number of the installation holes 212 may be more than that of the first protrusions 33 .
  • the surface of the support member 3 is further provided with two second protrusions 34, and the two second protrusions 34 are located on the proximal side and the distal side of the support member 3 respectively.
  • the height of the side surface of the second raised portion 34 away from the support member 3 (the upper surface of the second raised portion 34 ) is higher than the height of the first surface 211 of the nail strip body 21
  • the The upper surface of the second protruding portion 34 abuts against the second surface 13 of the staple cartridge cover 1 .
  • the upper surface of the first protrusion 33 is at the same height as the upper surface of the second protrusion 34 .
  • the lateral distance between the inner surface and the outer surface of the second protrusion 34 is equal to the lateral distance between the inner surface and the outer surface of the nail strip body 21 .
  • the second protruding portion 34 can be fixedly connected with the nail strip body 21 by welding.
  • the number and arrangement of the first protrusions 33 can be selected according to needs, and can be evenly or unevenly distributed on the surface of the support member 3 along the axial direction; in another alternative implementation
  • the surface of the support member 3 may only be provided with the first raised portion 33 without the second raised portion 34; in yet another alternative embodiment, the surface of the support member 3 may only be provided with
  • the second raised portion 34 is not provided with the first raised portion 33, and in another alternative embodiment, the second raised portion 34 can only be provided on the distal end side, or only on the proximal end side ; In yet another alternative embodiment, the second raised portion 34 can also adopt the same shape and size as the first raised portion 33 .
  • FIGS. 9 and 10 show the structure of the staple cartridge assembly according to the second embodiment of the present invention.
  • the surface of the support member 3 is not provided with the first raised portion 33 and the second raised portion 34
  • the first surface 211 of the nail strip body 21 is provided with at least one
  • the third raised portion 213, the third raised portion 213 is away from the side surface of the staple strip body 21 (the upper surface of the third raised portion 213) and the second surface of the staple cartridge cover 1 13 against each other to form a first gap 6 between the first surface 211 of the staple strip body 21 and the second surface 13 of the staple cartridge cover 1 .
  • the height of the third protrusion 213 is equal to the height h1 of the first gap 6 .
  • the upper surface of the third protruding portion 213 is parallel to the second surface 13 of the cartridge cover 1 and abuts on each other, so as to improve the matching stability.
  • the shape, size, quantity and arrangement of the third protrusions 213 can be selected and set according to needs, and are not limited to those shown in the figure. Adopting this embodiment can also achieve the purpose of facilitating the separation of the staples 22 from the staple strip 2 by the staple cutting portion 41 of the firing block 4 .
  • Fig. 11 and Fig. 12 show the structure of the staple cartridge assembly according to the third embodiment of the present invention.
  • the difference between this embodiment and the first embodiment is that: the surface of the support member 3 is not provided with the first raised portion 33 and the second raised portion 34, and the second surface 13 of the staple cartridge cover 1 is provided with a
  • the fourth protrusion 17 protruding from the nail belt 2 the fourth protrusion 17 faces the side surface of the nail belt body 21 (the lower surface of the fourth protrusion 17) and the nail
  • the first surface 211 of the belt body 21 resists.
  • the height of the fourth protrusion 17 is equal to the height h1 of the first gap 6 .
  • the lower surface of the fourth protrusion 17 is parallel to the first surface 211 of the nail strip body 21 and adheres to each other, so as to improve the matching stability.
  • the shape, size, quantity and arrangement of the fourth protrusions 17 can be selected and set according to needs, and are not limited to those shown in the figure. Adopting this embodiment can also achieve the purpose of facilitating the separation of the staples 22 from the staple strip 2 by the staple cutting portion 41 of the firing block 4 .
  • the protrusions in the above-mentioned first embodiment, second embodiment and third embodiment are respectively provided on the support member 3, the nail strip body 21 and the staple cartridge cover 1, so as to achieve the first surface 211 of the nail strip body 21 and the There is a first gap 6 between the second surfaces 13 of the staple cartridge cover 1 .
  • the above three embodiments can be used in combination, for example, the first raised portion 33, the second raised portion 34, the third raised portion 213 and the fourth raised portion 17 are set at the same time Two or more of them all fall within the protection scope of the present invention.
  • FIG. 13-16 show the structure of the cartridge assembly of the fourth embodiment of the present invention.
  • This embodiment is similar to the first embodiment, a first protrusion 33 and two second protrusions 34 are provided on the surface of the support member 3 .
  • the two second protrusions 34 are located on the distal side 31 and the proximal side 32 of the support member 3, and the first protrusion 33 is located between the two second protrusions 34, so The upper surface of the first protruding portion 33 and the upper surface of the second protruding portion 34 respectively abut against the second surface 13 of the cartridge cover 1 .
  • the nail cartridge assembly includes a plurality of nail strips 2, the plurality of nail strips 2 are arranged along the axial direction, and the first protrusion
  • the raised portion 33 is located between the two adjacent nail belt bodies 21 of the nail belt 2 .
  • the two second protrusions 34 are respectively located on the distal side of the most distal nail strip 2 and the proximal side of the proximalmost nail strip 2 .
  • the first protrusion 33 and/or the second protrusion 34 are preferably fixedly connected to the nail strip body 21 .
  • the first protruding portion 33 and the second protruding portion 34 are respectively fixedly connected to the nail strip body 21 by means of welding or the like.
  • the lateral distance between the inner surface and the outer surface of the first protrusion 33 is equal to the lateral distance between the inner surface and the outer surface of the nail strip body 21 .
  • the distance, that is, the transverse width of the first protruding portion 33 is equal to the transverse width of the nail strip body 21, which can better position the installation of a plurality of nail strips 2, and can better maintain the position of the nail strip 2. stability.
  • the lateral distance between the inner surface and the outer surface of the first protruding portion 33 may also be smaller than the lateral distance between the inner surface and the outer surface of the nail strip body 21, for example, a
  • the shape and size of the first protruding portion 33 as in the first embodiment also fall within the protection scope of the present invention.
  • the fourth embodiment can also have many modifications, and all of them belong to the protection scope of the present invention.
  • the quantity, size, shape and arrangement of the first protrusions 33 and the second protrusions 34 in the fourth embodiment are not limited to those shown in the figure.
  • the length of the nail strip 2 along the axial direction and the quantity of the nail strip 2 are not limited to those shown in the figure, and can be selected and adjusted as required.
  • only the first protruding portion 33 may be provided without the second protruding portion 34 .
  • FIG. 17 it is a schematic structural view of a staple cartridge assembly according to a fifth embodiment of the present invention.
  • the difference between this embodiment and the fourth embodiment lies in the arrangement of the first protrusion 33 .
  • multiple nail strips 2 are also provided, and the nail strips 2 are distributed on the support member 3 along the axial direction.
  • the shape and arrangement of the first raised portion 33 in the fifth embodiment are similar to those in the first embodiment, that is, the distance between the inner surface and the outer surface of the first raised portion 33 is smaller than that of the nail strip body 21, the surface of the nail strip body 21 is provided with at least one installation hole 212, and the first protrusion 33 is penetrated in the installation hole 212.
  • the mounting hole 212 can be opened in two ways.
  • the installation hole 212 is completely opened on the nail belt body 21 of a nail belt 2 .
  • the nail strip bodies 21 of two adjacent nail strips 2 can be respectively provided with a half hole, and after the two nail strip bodies 21 are combined together along the axial direction, the two half holes are combined to obtain a mounting hole 212 .
  • the fifth embodiment can also have many modifications, and all of them belong to the protection scope of the present invention.
  • the quantity, size, shape and arrangement of the first protrusions 33 and the second protrusions 34 in the fifth embodiment are not limited to those shown in the figure.
  • the length of the nail strip 2 along the axial direction and the quantity of the nail strip 2 are not limited to those shown in the figure, and can be selected and adjusted as required.
  • only the first protruding portion 33 may be provided without the second protruding portion 34 .
  • the nail strips 2 are made of biocompatible materials.
  • the staple strip body 21 and the staples 22 can be made of different materials.
  • the staple strip body 21 is made of titanium, titanium alloy, stainless steel, etc.
  • the staple 22 can preferably be a biocompatible staple of a degradable material, or a biodegradable and bioabsorbable staple 22 with biocompatibility, and the staple 22 is stitched on the tissue After that, there is no need to carry out subsequent nail removal operations.
  • the staple 22 is made of magnesium, magnesium alloy, degradable polymer material, etc., but the present invention is not limited thereto.
  • the surface of the staple 22 may also be coated with a degradable and bioabsorbable biocompatible coating.
  • the coating can further increase the hardness of the staple 22 and can adjust the degradation rate of the staple 22 .
  • the coating can be, for example, an absorbable material poly-L-lactic acid (PLLA) and/or a coating of racemic poly-lactic acid (PDLLA), etc., but the present invention is not limited thereto.
  • the overall degradation rate of the staple 22 can be adjusted by adjusting the thickness of the coating.
  • the coating can be a medicament with blood coagulation effect, etc., which can improve bleeding during anastomosis.
  • the surface of the staple 22 may be provided with a magnetic coating, and when an external magnetic field is applied, the coating will be magnetized to enhance the stapling strength.
  • the external magnetic field can be an electromagnetic field, and the strength of the magnetic field can be adjusted to meet the needs of matching; it can also be a permanent magnetic field.

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Abstract

一种钉仓组件及医用吻合器，钉仓组件包括：钉带（2）和支撑件（3），钉带（2）包括钉带本体（21），其安装于支撑件（3）的一侧，包括背离支撑件（3）的第一表面（211）；钉仓盖（1），至少部分覆盖钉带本体（21）的第一表面（211），其包括与钉带本体（21）的第一表面（211）相对的第二表面（13），钉带本体（21）的第一表面（211）与钉仓盖（1）的第二表面（13）之间有第一间隙（6）；击发块（4），活动设置于钉仓盖（1）的底部，且可沿轴向运动，击发块（4）包括切钉部（41），切钉部（41）的最高点的高度（P1）高于钉带本体（21）的第一表面（211）的高度（P2）。本发明通过在钉带本体（21）的第一表面（211）和钉仓盖（1）的第二表面（13）之间设置第一间隙（6），使得击发块（4）的切钉部（41）高于钉带（2）的第一表面（211），方便切钉部（41）驱动吻合钉（22）与钉带（2）分离。

Description

钉仓组件及医用吻合器 技术领域
本发明涉及医疗器械技术领域，具体涉及一种钉仓组件及医用吻合器。
背景技术
现有技术中，医用吻合器一般包括器械平台、活动连接于器械平台的击发把手和安装于器械平台的钉头部。钉头部可以通过穿刺器穿过身体上的小切口以接近手术部位实施手术。钉头部包括相对设置的钉仓组件和钉砧。所述钉仓组件包括钉带、支撑所述钉带的支撑件以及容纳所述钉带和支撑件的钉仓盖，所述钉仓盖的近端侧设置有击发块。在吻合器击发时，通过推刀杆推动切刀向远端侧运动，切刀驱动击发块向吻合器的远端侧方向运动，击发块将可旋转连接于钉带本体的吻合钉向外推出，且击发块的切钉部驱动吻合钉与钉带本体分离，切刀将位于钉仓组件和钉砧之间的组织切断，实现吻合器的击发。
在现有的吻合器中，钉仓盖的内表面与钉带的上表面相贴合。位于击发块的顶端的切钉部的高度可能会低于或等于钉带的上表面的高度，在击发块向远端侧运动时，切钉部不容易驱动吻合钉与钉带本体分离，可能会造成吻合钉无法脱离钉带本体的情况。
在本发明中，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。在吻合器中，内侧与外侧是相对于吻合器的轴心来说的，靠近轴心的一侧为内侧，远离轴心的一侧为外侧。
发明内容
针对现有技术中的问题，本发明的目的在于提供一种钉仓组件及医用吻合器，通过在钉带本体的第一表面和钉仓盖的第二表面之间设置第一间隙，使得击发块的切钉部高于钉带的第一表面，方便切钉部驱动吻合钉与钉带分离。
本发明实施例提供一种钉仓组件，用于医用吻合器，所述钉仓组件包括：
钉带和支撑件，所述钉带包括沿吻合器的轴向延伸的钉带本体，所述钉带本体安装于所述支撑件的一侧，所述钉带本体包括背离所述支撑件的第一表面；
钉仓盖，所述钉仓盖至少部分覆盖所述钉带本体的第一表面，所述钉仓盖包括与所述钉带本体的第一表面相对的第二表面，所述钉带本体的第一表面与所述钉仓盖的第二表面之间有第一间隙；
击发块，活动设置于所述钉仓盖的底部，且可沿所述轴向运动，所述击发块包括切钉部，所述切钉部的最高点的高度高于所述钉带本体的第一表面的高度。
在一些实施例中，所述击发块的切钉部的最高点与所述钉仓盖的第二表面相抵持。
在一些实施例中，所述击发块的切钉部的最低点的高度低于所述钉带本体的第一表面的高度。
在一些实施例中，所述钉带还包括吻合钉，所述吻合钉通过钉连接部可旋转地连接于所述钉带，所述击发块的切钉部的最高点高于所述钉连接部的高度。
在一些实施例中，还包括至少一个凸起部，所述凸起部包括位于所述钉带本体的第一表面和所述钉仓盖的第二表面之间的第一部分，且所述凸起部的第一部分的高度等于所述第一间隙的高度。
在一些实施例中，所述凸起部位于所述支撑件或所述钉带本体上，所述凸起部背离所述钉带本体的一侧表面与所述钉仓盖的第二表面相抵持。
在一些实施例中，所述凸起部背离所述钉带本体的一侧表面与所述钉仓盖的第二表面平行贴合。
在一些实施例中，所述支撑件的表面设置有至少一个第一凸起部，所述第一凸起部背离所述支撑件的一侧表面的高度高于所述钉带本体的第一表面的高度，所述第一凸起部背离所述支撑件的一侧表面与所述钉仓盖的第二表面相抵持。
在一些实施例中，所述第一凸起部的内侧面与外侧面之间的横向距离小于所述钉带本体的内侧面与外侧面之间的横向距离，所述钉带本体的表面设置有至少一个安装孔，所述第一凸起部穿设于所述安装孔中。
在一些实施例中，所述第一凸起部为凸台，所述凸台在所述钉带本体的第一表面的投影为圆角矩形。
在一些实施例中，所述钉仓组件包括多个钉带，所述多个钉带沿所述轴向排列，所述第一凸起部位于相邻的两个所述钉带的钉带本体之间。
在一些实施例中，所述第一凸起部与所述钉带本体固定连接。
在一些实施例中，所述支撑件的表面设置有至少一个第二凸起部，所述第二凸起部位于所述钉带本体的近端侧和/或远端侧，所述第二凸起部背离所述支撑件的一侧表面的高度高于所述钉带本体的第一表面的高度，所述第二凸起部背离所述支撑件的一侧表面与所述钉带本体的第二表面相抵持。
在一些实施例中，所述第二凸起部与所述钉带本体固定连接。
在一些实施例中，
所述支撑件的表面还设置有沿轴向分布的至少一个第一凸起部，且所述第一凸起部背离所述支撑件的一侧表面与所述第二凸起部背离所述支撑件的一侧表面的高度相同。
在一些实施例中，所述钉带本体的第一表面设置有至少一个第三凸起部，所述第三凸起部背离所述钉带本体的一侧表面与所述钉仓盖的第二表面相抵持。
在一些实施例中，所述钉仓盖的第二表面设置有朝向所述钉带凸起的第四凸起部，所述第四凸起部朝向所述钉带本体的一侧表面与所述钉带本体的第一表面抵持。
在一些实施例中，所述第四凸起部朝向所述钉带本体的一侧表面与所述钉带本体的第一表面平行贴合。
在一些实施例中，所述钉仓盖还包括与所述第二表面相对设置的第三表面，所述击发块的下表面与所述钉仓盖的第三表面相抵持。
在一些实施例中，所述吻合钉为可降解的具有生物相容性的吻合钉；和/或，所述吻合钉为生物可吸收的具有生物相容性的吻合钉。
在一些实施例中，所述吻合钉的表面设有可降解且可生物吸收的具有生物相容性的涂层；和/或，所述吻合钉的表面设有磁性涂层，在外接磁场作用下，所述吻合钉被磁化。
本发明实施例还提供一种医用吻合器，包括上述的钉仓组件。
本发明所提供的钉仓组件及医用吻合器具有如下优点：
本发明提供了一种用于医用吻合器的钉仓组件，通过在钉带本体的第一表面和钉仓盖的第二表面之间设置第一间隙，使得击发块的切钉部的最高点的高度高于钉带的第一表面，方便击发块的切钉部驱动吻合钉与钉带分离，从而可以保证在吻合器击发时，击发块可以将吻合钉向钉砧推出而闭合在组织上。
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，本发明的其它特 征、目的和优点将会变得更明显。
图1是本发明第一实施例的钉仓组件的结构示意图；
图2是本发明第一实施例的钉仓组件的主视图；
图3是本发明第一实施例的钉仓组件的爆炸图；
图4是本发明第一实施例的钉仓组件的俯视图；
图5是图4中A1-A1方向的剖视图；
图6是图4中A2-A2方向的剖视图；
图7是本发明第一实施例的钉仓组件的左视图；
图8是本发明第一实施例的钉仓组件省略钉仓盖的局部示意图；
图9是本发明第二实施例的钉仓组件省略钉仓盖的局部示意图；
图10是本发明第二实施例的钉带与钉仓盖配合的示意图；
图11是本发明第三实施例的钉仓盖的结构示意图；
图12是本发明第三实施例的钉仓组件省略钉仓盖的局部示意图；
图13是本发明第四实施例的钉仓组件省略钉仓盖的结构示意图；
图14是本发明第四实施例的钉带的结构示意图；
图15是本发明第四实施例的支撑件的结构示意图；
图16是本发明第四实施例的钉仓组件省略钉仓盖的局部示意图；
图17是本发明第五实施例的钉带和支撑件配合的结构示意图。
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发明将全面和完整，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。
本发明提供了一种钉仓组件及包括其的医用吻合器。所述医用吻合器包括器械平台、活动连接于器械平台的击发把手和安装于器械平台的钉头部，所述钉头部包括相对设置的钉仓组件和钉砧。所述钉仓组件包括：钉带和支撑件，所述钉带包括沿吻合器的轴向延伸的钉带本体，所述钉带本体安装于所述支撑件的一侧，所述钉带本体包括背离所述支撑件的第一表面；钉仓盖，所述钉仓盖至少部分覆盖所述钉带本体的第一表面，所述钉仓盖包括与所述钉带本体的第一表面相对的第二表面，所述钉带本体的第一表面与所述钉仓盖的第二表面之间有第一间隙；以及击发块，活动设置于所述钉仓盖的底部，初始状态下，所述击发块位于所述钉仓盖的近端侧，且可沿所述轴向运动，所述击发块包括切钉部，所述切钉部的最高点的高度高于所述钉带本体的第一表面的高度，所述切钉部用于在吻合器击发时驱动吻合钉与钉带本体分离。
因此，本发明通过在钉带本体的第一表面和钉仓盖的第二表面之间设置第一间隙，使得击发块的切钉部的最高点的高度高于钉带的第一表面，方便击发块的切钉部驱动吻合钉与钉带分离，从而可以保证在吻合器击发时，击发块可以将吻合钉向钉砧推出而闭合在组织上。
下面结合附图详细介绍本发明各个具体实施例的钉仓组件的结构，可以理解的是，各个具体实施例不作为本发明的保护范围的限制。
图1～8示出了本发明第一实施例的钉仓组件的结构。如图1～3所示，所述钉仓组件包括钉带2、用于支撑钉带2的支撑件3、容纳所述支撑件3和所述钉带2的钉仓盖1以及至少部分进入所述钉仓盖1中的击发块4。所述钉带2包括沿所述轴向延伸的钉带本体21和连接于所述钉带本体21的吻合钉22，所述吻合钉22通过 钉连接部221可旋转地连接于所述钉带本体21。所述钉仓组件还包括固定件5，所述支撑件3的远端侧31和所述钉仓盖1的远端侧11均固定于所述固定件5。在该实施例中，设置了两个支撑件3、两个钉带2和两个钉仓盖1，两个钉带2分别设置于所对应的支撑件3上，且各个所述钉带2的两侧均设置有吻合钉22，所述钉仓盖1套设于所述支撑件3和所述钉带2的外部。在其他可替代的实施方式中，所述支撑件3、钉带2和钉仓盖1的数量均可以根据需要变更，而不以图中示出的为限，钉带2也可以只有一侧设置吻合钉22，均属于本发明的保护范围之内。图3中仅示例性地示出了部分吻合钉22，在实际应用中，吻合钉22的数量和排列方式可以根据需要选择。
所述钉带本体21安装于所述支撑件3的一侧，在图3和图5的视角中，即所述钉带本体21设置于所述支撑件3的上侧，所述钉带本体21包括背离所述支撑件3的第一表面211，即所述钉带本体21的上表面为该第一表面211。如图3～5所示，所述钉仓盖1至少部分覆盖所述钉带本体21的第一表面211，所述钉仓盖1包括与所述钉带本体21的第一表面211相对的第二表面13。所述钉仓盖1的第二表面13即为所述钉仓盖1与所述钉带本体21相对的表面，在该实施例中，所述钉仓盖1的第二表面13即为所述钉仓盖的上板的内表面。所述钉仓盖1还包括位于所述第二表面13外侧的第四表面15，即所述钉仓盖1的上板的外表面。所述钉仓盖1的上板设置有贯通的钉孔14。
在本发明中，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，沿所述吻合器的轴心的方向为轴向，即从吻合器的远端侧到近端侧的方向，或从吻合器的近端侧到远端侧的方向。例如，在图1的视角中，对于钉仓盖1来说，其远端侧11 为右方一侧，近端侧12为左方一侧。在图15的视角中，对于支撑件3来说，其远端侧31为右方一侧，近端侧32为左方一侧。在本发明中，S1方向即为从吻合器的近端侧向远端侧的方向，定义S1方向或与S1方向相反的方向为吻合器的轴向。定义图5～7中示出的S2方向为纵向，即高度方向。定义垂直于S1方向和S2方向的S3方向为横向，即宽度方向。在本发明中，对于一个部件来说，内侧和外侧是相对于吻合器的轴心来说的，靠近轴心的一侧为内侧，远离轴心的一侧为外侧。
如图3～5所示，所述钉带本体21的第一表面211与所述钉仓盖1的第二表面13之间有第一间隙6，该第一间隙6的高度为h1。此第一间隙6的高度h1随钉仓组件的尺寸变化而可以采用不同的数值。所述击发块4在初始状态下位于所述钉仓盖1的近端侧12，且可沿所述轴向运动。如图7和图8所示，所述击发块4包括切钉部41和推钉部42，所述推钉部42位于所述切钉部41的远端侧。在吻合器击发时，所述推钉部42首先与吻合钉22相接触，推动所述吻合钉22旋转闭合，而使得所述吻合钉22的钉脚从钉仓盖1的钉孔14中向外伸出，然后所述切钉部41与所述钉连接部221接触，并进行切钉，使得所述钉连接部221断开，所述吻合钉22与所述钉带本体21分离，所述吻合钉22可以整体从所述钉仓盖1的钉孔14推出而吻合在组织上。如图8所示，所述切钉部41的最高点的高度P1高于所述钉带本体21的第一表面211的高度P2，方便击发块4的切钉部41驱动吻合钉22与钉带2分离，从而可以保证在吻合器击发时，击发块4可以将吻合钉22向钉砧推出而闭合在组织上。
如图7所示，在该实施例中，所述击发块4的切钉部41的最高点与所述钉仓盖1的第二表面13相抵持，所述击发块4的切钉部41可以最大程度利用第一间隙6，更好地驱动吻合钉22与钉带2分离。所述钉仓盖1还包括与所述第二表面13 相对设置的第三表面16，所述击发块4的下表面与所述钉仓盖1的第三表面16相抵持。在该实施例中，所述钉仓盖1的第三表面16即为所述钉仓盖1的下板的上表面。通过钉仓盖1的第三表面16和第二表面13，将所述击发块4在高度方向上保持在一个稳定的位置上。击发块4在钉仓盖1中沿所述轴向运动时，也能保持击发块4的切钉部41的最高点的高度持续高于钉带本体21的第一表面211的高度，保证所有吻合钉22可以与钉带本体21正常分离。
如图8所示，在该实施例中，所述击发块4的切钉部41的最低点的高度P3低于所述钉带本体21的第一表面211的高度P2。所述击发块4的切钉部41的最高点的高度P1高于所述钉连接部221的高度。因此，所述击发块4的切钉部41至少部分与所述钉连接部221在所述轴向上对齐，可以保证在吻合器击发时吻合钉22完全与钉带本体21分离而吻合于组织。
如图3～8所示，在该实施例中，所述支撑件3的表面设置有至少一个第一凸起部33，所述第一凸起部33背离所述支撑件3的一侧表面(即第一凸起部33的上表面)的高度高于所述钉带本体21的第一表面211的高度，所述第一凸起部33的上表面与所述钉仓盖1的第二表面13相抵持，通过所述第一凸起部33的抵持作用使得所述钉带本体21的第一表面211与所述钉仓盖1的第二表面13之间具有所述第一间隙6。所述第一凸起部33包括位于所述钉仓盖1的第二表面13和所述钉带本体21的第一表面211之间的第一部分和位于所述钉带本体21的第一表面211和所述支撑件3的上表面之间的第二部分，所述第一凸起部33的第一部分的高度即为所述第一凸起部33凸起于所述钉带本体21的第一表面211的部分的高度，且该高度等于所述第一间隙6的高度h1。
如图3和图6所示，在该实施例中，所述第一凸起部33背离所述钉带本体21 的一侧表面与所述钉仓盖1的第二表面13平行且相互贴合，从而可以加强所述第一凸起部33与所述钉带本体21之间的配合稳定性。如图3和图8所示，所述第一凸起部33的内侧面与外侧面之间的横向距离小于所述钉带本体21的内侧面与外侧面之间的横向距离，即所述第一凸起部33的横向宽度小于所述钉带本体21的横向宽度，所述钉带本体21的表面设置有至少一个安装孔212，所述第一凸起部33穿设于所述安装孔212中。优选地，所述第一凸起部33与所述安装孔212通过焊接的方式固定连接。
如图8所示，在该实施例中，所述第一凸起部33为凸台，所述凸台在所述钉带本体21的第一表面211的投影为圆角矩形，即所述凸台的各个角均设置有圆弧引导面，在将钉带2与支撑件3组装时，圆弧引导面可以更好地引导所述凸台进入所述安装孔212中。此处第一凸起部33的形状仅为示例，在其他可替代的实施方式中，所述第一凸起部33也可以采用其他的形状，例如，所述第一凸起部33在所述钉带本体21的第一表面211的投影为矩形，或者三角形、菱形、梯形等，所述第一凸起部33的上表面的面积与下表面的面积也可以不同，例如所述第一凸起部33为下表面面积大而上表面面积小的椎体结构，均属于本发明的保护范围之内。所述第一凸起部33与所述安装孔212的数量可以是一一对应地设置，也可以是所述安装孔212多于所述第一凸起部33设置。
在该实施例中，所述支撑件3的表面还设置有两个第二凸起部34，所述两个第二凸起部34分别位于所述支撑件3的近端侧和远端侧，所述第二凸起部34背离所述支撑件3的一侧表面的高度(第二凸起部34的上表面)高于所述钉带本体21的第一表面211的高度，所述第二凸起部34的上表面与所述钉仓盖1的第二表面13相抵持。所述第一凸起部33的上表面与所述第二凸起部34的上表面的高度相同。 在该实施例中，所述第二凸起部34的内侧面与外侧面之间的横向距离等于所述钉带本体21的内侧面与外侧面之间的横向距离。优选地，所述第二凸起部34可以与所述钉带本体21通过焊接方式固定连接。
在该实施例中，第一凸起部33的数量和排列方式可以根据需要选择，可以沿所述轴向均匀或不均匀地分布于所述支撑件3的表面；在另一可替代的实施方式中，所述支撑件3的表面可以只设置第一凸起部33，而不设置第二凸起部34；在再一可替代的实施方式中，所述支撑件3的表面可以只设置第二凸起部34，而不设置第一凸起部33，在另一可替代的实施方式中，所述第二凸起部34可以仅设置在远端侧，或者仅设置在近端侧；在又一可替代的实施方式中，所述第二凸起部34也可以与第一凸起部33采用相同的形状和尺寸。
图9和图10示出了本发明第二实施例的钉仓组件的结构。该实施例与第一实施例的区别在于：所述支撑件3的表面未设置第一凸起部33和第二凸起部34，所述钉带本体21的第一表面211设置有至少一个第三凸起部213，所述第三凸起部213背离所述钉带本体21的一侧表面(所述第三凸起部213的上表面)与所述钉仓盖1的第二表面13相抵持，以在所述钉带本体21的第一表面211与所述钉仓盖1的第二表面13之间形成第一间隙6。所述第三凸起部213的高度即等于所述第一间隙6的高度h1。所述第三凸起部213的上表面与所述钉仓盖1的第二表面13平行且相互贴合，以提高配合稳定性。所述第三凸起部213的形状、尺寸、数量和排列方式可以根据需要选择设定，而不以图中示出的为限。采用该实施例同样可以实现方便击发块4的切钉部41驱动吻合钉22与钉带2分离的目的。
图11和图12示出了本发明第三实施例的钉仓组件的结构。该实施例与第一实施例的区别在于：所述支撑件3的表面未设置第一凸起部33和第二凸起部34，所 述钉仓盖1的第二表面13设置有朝向所述钉带2凸起的第四凸起部17，所述第四凸起部17朝向所述钉带本体21的一侧表面(所述第四凸起部17的下表面)与所述钉带本体21的第一表面211抵持。所述第四凸起部17的高度即等于所述第一间隙6的高度h1。所述第四凸起部17的下表面与所述钉带本体21的第一表面211平行且相互贴合，以提高配合稳定性。所述第四凸起部17的形状、尺寸、数量和排列方式可以根据需要选择设定，而不以图中示出的为限。采用该实施例同样可以实现方便击发块4的切钉部41驱动吻合钉22与钉带2分离的目的。
上述第一实施例、第二实施例和第三实施例中的凸起部分别设置于支撑件3、钉带本体21和钉仓盖1，以实现在钉带本体21的第一表面211和钉仓盖1的第二表面13之间具有第一间隙6。在其他可替代的实施方式中，上述三个实施例可以组合使用，例如，同时设置第一凸起部33、第二凸起部34、第三凸起部213和第四凸起部17中的两种或更多种，均属于本发明的保护范围之内。
图13～16示出了本发明第四实施例的钉仓组件的结构。该实施例与第一实施例类似地，在所述支撑件3的表面设置第一凸起部33和两个第二凸起部34。所述两个第二凸起部34位于所述支撑件3的远端侧31和近端侧32，所述第一凸起部33位于所述两个第二凸起部34之间，所述第一凸起部33的上表面和所述第二凸起部34的上表面分别与所述钉仓盖1的第二表面13抵持。第四实施例与第一实施例的区别在于：在该实施例中，所述钉仓组件包括多个钉带2，所述多个钉带2沿所述轴向排列，所述第一凸起部33位于相邻的两个所述钉带2的钉带本体21之间。所述两个第二凸起部34分别位于最远端的钉带2的远端侧和最近端的钉带2的近端侧。在该实施例中，所述第一凸起部33和/或所述第二凸起部34优选与所述钉带本体21固定连接。例如，所述第一凸起部33、所述第二凸起部34分别与所述钉带 本体21通过焊接等方式固定连接。
如图13～15所示，在该实施例中，所述第一凸起部33的内侧面与外侧面之间的横向距离等于所述钉带本体21的内侧面与外侧面之间的横向距离，即所述第一凸起部33的横向宽度等于所述钉带本体21的横向宽度，可以更好地对多个钉带2的安装进行定位，并且可以更好地保持钉带2的稳定性。在其他可替代的实施方式中，第一凸起部33的内侧面与外侧面之间的横向距离也可以小于所述钉带本体21的内侧面与外侧面之间的横向距离，例如可以采用如第一实施例的第一凸起部33的形状和尺寸，也属于本发明的保护范围之内。
该第四实施例同样可以有很多的变形，且均属于本发明的保护范围之内。第四实施例中第一凸起部33和第二凸起部34的数量、尺寸、形状和排列方式均不以图中示出的为限。钉带2沿所述轴向的长度和钉带2的数量也不以图中示出的为限，可以根据需要选择调整。在一可替代的实施方式中，也可以只设置第一凸起部33，而不设置第二凸起部34。
如图17所示，为本发明第五实施例的钉仓组件的结构示意图。该实施例与第四实施例的区别在于第一凸起部33的设置不同。第五实施例中同样设置有多个钉带2，且钉带2沿所述轴向分布于支撑件3上。第五实施例中的第一凸起部33的形状和设置方式与第一实施例中类似，即所述第一凸起部33的内侧面与外侧面之间的距离小于所述钉带本体21的内侧面与外侧面之间的距离，所述钉带本体21的表面设置有至少一个安装孔212，所述第一凸起部33穿设于所述安装孔212中。所述安装孔212可以有两种开设方式。一种是所述安装孔212完全开设在一个钉带2的钉带本体21上。另一种是相邻的两个钉带2的钉带本体21可以分别设置一个半孔，两个钉带本体21沿所述轴向组合在一起之后，两个半孔组合得到一个安装孔212。
该第五实施例同样可以有很多的变形，且均属于本发明的保护范围之内。第五实施例中第一凸起部33和第二凸起部34的数量、尺寸、形状和排列方式均不以图中示出的为限。钉带2沿所述轴向的长度和钉带2的数量也不以图中示出的为限，可以根据需要选择调整。在一可替代的实施方式中，也可以只设置第一凸起部33，而不设置第二凸起部34。
在上述各个实施例中，所述钉带2均为满足生物相容性材质的钉带2。在优选的实施方式中，所述钉带本体21与所述吻合钉22可以采用不同材质制成，例如，在一些实施方式中，钉带本体21为钛、钛合金及不锈钢等不可吸收、不可降解材质制成，吻合钉22可以优选为可降解材质的具有生物相容性吻合钉、或者可降解且可生物吸收的具有生物相容性的吻合钉22，在将吻合钉22缝合在组织上后，无需再进行后续的拆钉操作。例如，所述吻合钉22采用镁、镁合金、可降解高分子材料等，但本发明不限于此。进一步地，所述吻合钉22的表面还可以涂覆有可降解且可生物吸收的具有生物相容性的涂层。该涂层可以进一步提高吻合钉22的硬度，并且可以调节吻合钉22的降解速度。该涂层例如可以为可吸收材料左旋聚乳酸(PLLA)和/或外消旋聚乳酸(PDLLA)涂层等，但本发明不限于此。通过调节涂层的厚度可以调节吻合钉22整体的降解速度。或者涂层可以是有凝血效果的药剂等，可以改善吻合过程中的出血等。在另外一些实施方式中，所述吻合钉22的表面可以是设有磁性涂层，在外部磁场接入时，所述涂层被磁化，可以达到加强吻合强度的效果。外部磁场可以是电磁场，磁场强度可以调整，以适应吻合的需要；也可以是永磁场。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员 来说，在不分离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (22)

  1. 一种钉仓组件，其特征在于，用于医用吻合器，所述钉仓组件包括：
    钉带和支撑件，所述钉带包括沿吻合器的轴向延伸的钉带本体，所述钉带本体安装于所述支撑件的一侧，所述钉带本体包括背离所述支撑件的第一表面；
    钉仓盖，所述钉仓盖至少部分覆盖所述钉带本体的第一表面，所述钉仓盖包括与所述钉带本体的第一表面相对的第二表面，所述钉带本体的第一表面与所述钉仓盖的第二表面之间有第一间隙；
    击发块，活动设置于所述钉仓盖的底部，且可沿所述轴向运动，所述击发块包括切钉部，所述切钉部的最高点的高度高于所述钉带本体的第一表面的高度。
  2. 根据权利要求1所述的钉仓组件，其特征在于，所述击发块的切钉部的最高点与所述钉仓盖的第二表面相抵持。
  3. 根据权利要求1所述的钉仓组件，其特征在于，所述击发块的切钉部的最低点的高度低于所述钉带本体的第一表面的高度。
  4. 根据权利要求1所述的钉仓组件，其特征在于，所述钉带还包括吻合钉，所述吻合钉通过钉连接部可旋转地连接于所述钉带，所述击发块的切钉部的最高点高于所述钉连接部的高度。
  5. 根据权利要求1所述的钉仓组件，其特征在于，还包括至少一个凸起部，所述凸起部包括位于所述钉带本体的第一表面和所述钉仓盖的第二表面之间的第一部分，且所述凸起部的第一部分的高度等于所述第一间隙的高度。
  6. 根据权利要求5所述的钉仓组件，其特征在于，所述凸起部位于所述支撑件或所述钉带本体上，所述凸起部背离所述钉带本体的一侧表面与所述钉仓盖的第二表面相抵持。
  7. 根据权利要求6所述的钉仓组件，其特征在于，所述凸起部背离所述钉带本体的一侧表面与所述钉仓盖的第二表面平行贴合。
  8. 根据权利要求5所述的钉仓组件，其特征在于，所述支撑件的表面设置有至少一个第一凸起部，所述第一凸起部背离所述支撑件的一侧表面的高度高于所述钉带本体的第一表面的高度，所述第一凸起部背离所述支撑件的一侧表面与所述钉仓盖的第二表面相抵持。
  9. 根据权利要求8所述的钉仓组件，其特征在于，所述第一凸起部的内侧面与外侧面之间的横向距离小于所述钉带本体的内侧面与外侧面之间的横向距离，所述钉带本体的表面设置有至少一个安装孔，所述第一凸起部穿设于所述安装孔中。
  10. 根据权利要求9所述的钉仓组件，其特征在于，所述第一凸起部为凸台，所述凸台在所述钉带本体的第一表面的投影为圆角矩形。
  11. 根据权利要求8所述的钉仓组件，其特征在于，所述钉仓组件包括多个钉带，所述多个钉带沿所述轴向排列，所述第一凸起部位于相邻的两个所述钉带的钉带本体之间。
  12. 根据权利要求11所述的钉仓组件，其特征在于，所述第一凸起部与所述钉带本体固定连接。
  13. 根据权利要求5所述的钉仓组件，其特征在于，所述支撑件的表面设置有至少一个第二凸起部，所述第二凸起部位于所述支撑件的近端侧和/或远端侧，所述第二凸起部背离所述支撑件的一侧表面的高度高于所述钉带本体的第一表面的高度，所述第二凸起部背离所述支撑件的一侧表面与所述钉仓盖的第二表面相抵持。
  14. 根据权利要求13所述的钉仓组件，其特征在于，所述第二凸起部与所述 钉带本体固定连接。
  15. 根据权利要求13所述的钉仓组件，其特征在于，
    所述支撑件的表面还设置有沿轴向分布的至少一个第一凸起部，且所述第一凸起部背离所述支撑件的一侧表面与所述第二凸起部背离所述支撑件的一侧表面的高度相同。
  16. 根据权利要求5所述的钉仓组件，其特征在于，所述钉带本体的第一表面设置有至少一个第三凸起部，所述第三凸起部背离所述钉带本体的一侧表面与所述钉仓盖的第二表面相抵持。
  17. 根据权利要求5所述的钉仓组件，其特征在于，所述钉仓盖的第二表面设置有朝向所述钉带凸起的第四凸起部，所述第四凸起部朝向所述钉带本体的一侧表面与所述钉带本体的第一表面抵持。
  18. 根据权利要求17所述的钉仓组件，其特征在于，所述第四凸起部朝向所述钉带本体的一侧表面与所述钉带本体的第一表面平行贴合。
  19. 根据权利要求1所述的钉仓组件，其特征在于，所述钉仓盖还包括与所述第二表面相对设置的第三表面，所述击发块的下表面与所述钉仓盖的第三表面相抵持。
  20. 根据权利要求4所述的钉仓组件，其特征在于，所述吻合钉为可降解的具有生物相容性的吻合钉；和/或，所述吻合钉为生物可吸收的具有生物相容性的吻合钉。
  21. 根据权利要求4所述的钉仓组件，其特征在于，所述吻合钉的表面设有可降解且可生物吸收的具有生物相容性的涂层；和/或，所述吻合钉的表面设有磁性涂层，在外接磁场作用下，所述吻合钉被磁化。
  22. 一种医用吻合器，其特征在于，包括权利要求1至21中任一项所述的钉仓组件。
PCT/CN2022/116033 2021-08-31 2022-08-31 钉仓组件及医用吻合器 Ceased WO2023030356A1 (zh)

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US18/687,579 US12426877B2 (en) 2021-08-31 2022-08-31 Cartridge assembly and surgical stapler
KR1020247008161A KR20240044488A (ko) 2021-08-31 2022-08-31 스테이플 카트리지 어셈블리 및 의료용 스테이플러
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