CN209996391U - Nail bin assembly and medical anastomat comprising same - Google Patents
Nail bin assembly and medical anastomat comprising same Download PDFInfo
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- CN209996391U CN209996391U CN201920474022.XU CN201920474022U CN209996391U CN 209996391 U CN209996391 U CN 209996391U CN 201920474022 U CN201920474022 U CN 201920474022U CN 209996391 U CN209996391 U CN 209996391U
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- staple
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- cartridge assembly
- staple cartridge
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Abstract
The utility model provides an kind of nail storehouse subassembly reaches medical anastomat including it, the nail storehouse subassembly includes nail area and a plurality of lug at least, the nail area includes the edge the nail area body that the axial direction of medical anastomat extends, be provided with at least row on the nail area body and follow the anastomotic nail that the extending direction of nail area body was arranged in proper order, anastomotic nail is connected to through its link to the nail area body, the lug with anastomotic nail corresponds, the lug is located the distal end side of the link of the anastomotic nail that corresponds, and the percussion during the anastomat, the link of anastomotic nail with the lug contacts, and the disconnection with the connection of nail area body, so that anastomotic nail follow the nail area body breaks away from through adopting the utility model discloses, form anastomotic nail on nail area, it is more convenient to install and change, sets up the lug, makes things convenient for the separation of anastomotic nail and nail area body.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to kinds of nail storehouse subassemblies and including its medical anastomat.
Background
The digestive tract diseases are high-incidence diseases of human beings, and in the treatment process, a medical anastomat is often used for replacing the manual operation of a doctor to perform anastomosis on physiological tissues such as the digestive tract and the like, the medical anastomat is common surgical operation instruments, most of the medical anastomats adopt an axial internal stapling mode, end-to-end or end-to-side anastomosis is formed on the physiological tissues such as esophagus, stomach and intestinal tract during operation, two sections of tissues are contained in the medical anastomat in an astringing mode during anastomosis, a circular anastomotic stoma is formed on the tissues after the completion of percussion, and a human body channel is reconstructed.
In the prior art, the medical anastomat comprises a medical anastomat body, an operating handle movably connected with the medical anastomat body and a nail anvil assembly matched with the medical anastomat body, the medical anastomat body comprises a nail bin assembly and a nail bin assembly frame arranged on the far-end side, the far-end side and the near-end side are opposite to an operator, the end close to the operator is the near-end side, the end far from the operator is the far-end side, namely the end close to the operation position is the far-end side, when in operation, the nail bin assembly and the nail anvil assembly are closed, the operating handle is held, anastomotic nails can be pushed to move towards tissues, and the tissues are anastomosed through the forming of the anastomotic nails in the nail bin assembly at the nail anvil assembly.
In the existing cartridge assembly, staples are mostly arranged separately, however, such staples are required to be installed in the staple holes of the cartridge assembly individually, and the installation is very inconvenient.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model aims to provide kinds of nail storehouse subassemblies and include its medical anastomat, will coincide the nail and form on nail area, it is more convenient to install and change, sets up the lug, makes things convenient for the separation from of coincide nail and nail area body.
The embodiment of the utility model provides kinds of nail storehouse subassemblies, be used for medical anastomat, the nail storehouse subassembly includes nail area and a plurality of lug at least, the nail area includes the nail area body that extends along the axial direction of medical anastomat, be provided with at least rows of anastomotic nails of arranging in proper order along the extending direction of nail area body on the nail area body, the anastomotic nail is connected to the nail area body through its link;
the projection corresponds to the staple , the projection is located at the distal end side of the connecting end of the corresponding staple, and when the medical stapler is fired, the connecting end of the staple is in contact with the projection to be disconnected from the staple belt body.
Optionally, the staple belt body is provided with two rows of the staples, and the two rows of the staples are arranged in a staggered manner along the extending direction of the staple belt body; the projections corresponding to the two rows of anastomotic nails are arranged in a staggered mode along the extending direction of the nail belt body.
Optionally, connecting rods are arranged between the two rows of staples, and the bumps are arranged on the tops of the connecting rods.
Optionally, the nail belt body and the positions corresponding to the lugs are respectively provided with lug accommodating openings for accommodating the lugs.
Optionally, the distal side of the tab is a ramp that gradually rises from its distal side to its proximal side.
Optionally, the top end of the distal side of the tab transitions smoothly to the top surface of the tab.
Optionally, the proximal side of the tab is a ramp that gradually rises from its distal side to its proximal side.
Optionally, the proximal side of the projection is formed as a cutting edge.
Optionally, the side surface of the staple belt body facing the anvil of the medical stapler is a cartridge component surface, and the top end of the projection protrudes out of the cartridge component surface.
Optionally, an mating opening is opened at a proximal side of the bump, the connecting end of the staple has a connecting beam, and the connecting beam is located in the mating opening.
Optionally, the staple cartridge assembly further comprises a fastener to which the distal side of the staple band is secured.
Optionally, both sides of each row of the nail belt are further provided with a limiting part respectively, the limiting parts extend along the axial direction of the medical stapler, and the limiting parts limit the nail outlet direction of the staples.
Optionally, the staple cartridge assembly further comprises a staple cartridge cover, the staple cartridge cover covers the upper surface of the staple belt body, and a staple outlet corresponding to the staple is formed in the staple cartridge cover.
Optionally, the lug is arranged at the nail outlet of the nail bin cover, and the lug protrudes out of the lower surface of the nail bin cover.
Optionally, in the initial state, there is space between the distal side of the connecting end of the staple and the proximal side of the tab.
The embodiment of the utility model provides an kinds of medical anastomats still, including the nail storehouse subassembly of any .
The utility model provides a nail storehouse subassembly reaches medical anastomat including it has following advantage:
the utility model provides an staple cartridge components for medical anastomat, it is more convenient to coincide the nail and form on nail area, installation and change, after times operation is accomplished, can only change the nail area, set up the lug on the nail area body, make things convenient for the separation from of coincide nail and nail area body, guarantee that operation in-process coincide the nail can break away from staple cartridge components and coincide the tissue to avoid appearing the condition of bail in the operation, improve the operation effect.
Drawings
Other features, objects and advantages of the invention will become more apparent from a reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a diagrammatic illustration of a staple cartridge assembly of an embodiment of the present invention in cooperation with an anvil and a cartridge assembly rack;
FIG. 2 is a schematic view of a cartridge assembly and cartridge assembly rack according to an embodiment of the present invention at ;
FIG. 3 is a front view of a cartridge module of an embodiment of the present invention in cooperation with a cartridge module rack and body;
FIG. 4 is a left side view of a cartridge assembly of an embodiment of the present invention in cooperation with a cartridge assembly rack and body;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic view of a staple cartridge assembly according to an embodiment of the present invention in combination with a staple pusher;
FIG. 7 is a schematic view of the structure of FIG. 6 with the side stop removed;
fig. 8 and 9 are enlarged views at B in fig. 7;
fig. 10 is a schematic illustration of a staple strip according to an embodiment of the present invention at ;
fig. 11 is a schematic structural view of a connecting rod according to an embodiment of the present invention ;
fig. 12 is a schematic view of another embodiment of the present invention illustrating a protrusion disposed on the magazine cover according to the present invention at ;
fig. 13 is an exploded view of fig. 12.
Reference numerals:
1 nail bin assembly rack 6 connecting rods
2 anvil assembly 61 lug of embodiment
3 distal side of the anchor 611 lugs
4 nail belt 612 matching port
Proximal side of 41 staple 613 tab
411 puncture end 7 nail pushing block
412 connecting end 71 disconnection portion
42 nail belt body 8 push rod
421 lug receiving port 81 cutter
5 limiting part 9 body
15 nail bin cover
16 nail outlet
17 bumps of the second embodiment
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different 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 in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
In order to solve the technical problem in the prior art, the utility model provides an staple cartridge components for medical anastomat and medical anastomat including this staple cartridge components, the staple cartridge components include at least nail area and a plurality of lug, the nail area includes the nail area body that extends along the axial direction of medical anastomat, be provided with at least rows of nails of arranging in proper order along the extending direction of nail area body on the nail area body, the anastomosis nail is connected to the nail area body through its link, the lug corresponds with anastomosis nail , the lug is located the distal end side of the link of the anastomosis nail that corresponds, and when the anastomat is fired, the link of anastomosis nail contacts with the lug to break off with the connection of nail area body, thereby make the anastomosis nail break away from the nail.
The utility model discloses a forming the anastomosis nail on nail belt, can directly taking the nail area to be installed as a whole in the nail storehouse subassembly during the installation, the nail storehouse subassembly is more convenient to operate the anastomosis nail is connected to nail area body through its link, and the anastomosis nail breaks away from nail area body more conveniently in order to realize the operation, still on nail area body with nail area body components of a whole that can function independently or the lug that body set up.
The structure of the staple cartridge assembly and the medical stapler according to the embodiment of the present invention will be described with reference to fig. 1 to 11.
As shown in fig. 1 to 5, in this embodiment, the medical stapler includes a cartridge module rack 1 and an anvil 2 located at a distal end side, a cartridge module is installed in the cartridge module rack 1, a proximal end side of the cartridge module rack 1 is connected to a stapler body 9, the cartridge module includes two staple strips 4 and a plurality of projections 61, the staple strips 4 include a staple strip body 42 extending along an axial direction of the medical stapler, two rows of staples 41 sequentially arranged along an extending direction of the staple strip body 42 are disposed on the staple strip body 42, the staples 41 are connected to the staple strip body 42 through connecting ends 412 thereof, the projections 61 correspond to staples 41 , in a preferred embodiment, the projections 61 are disposed on a connecting rod 6, the projections 61 are located at a distal end side of the connecting ends 412 of the corresponding staples 41, the staples 41 are disposed at a side of the staple strip body 42, and the other side of the staple strip body 42 is a cartridge module surface facing the anvil assembly 2, that is an upper surface of the staple strip body 42 and the lower surface of the staple strip is disposed at a lower surface of the staple cartridge module 41 in a viewing angle of fig. 3.
The proximal end side of the nail bin assembly frame 1 is provided with a nail pushing rod 8 and a nail pushing block 7, and the distal end side of the nail pushing rod 8 is provided with a cutter 81. A cutter groove for the cutter 81 to pass through is formed between the two nail belts. When a doctor grasps an operation handle (not shown in the figure) to fire the stapler, the pusher bar 8 pushes the staple pushing block 7 to move towards the far end side of the stapler, the staple pushing block 7 is sequentially contacted with the staples 41 and pushes the staples 41 to enable the staples 41 to rotate towards the nail anvil direction, the connecting ends 412 of the staples 41 are contacted with the bumps 61, and under the action of the pushing force of the staple pushing block 7 and the contact force of the bumps 61, the connecting ends 412 of the staples 41 are disconnected with the nail belt body 42, so that the staples 41 are separated from the nail belt body 42.
In the present invention, the distal side and the proximal side are relative to the operator, wherein the distal side refers to the end that is farther from the operator and the proximal side refers to the end that is closer to the operator, for example, in the view of FIG. 1, the distal side of the cartridge assembly rack 1 refers to the left side end in the figure, the proximal side refers to the right side end in the figure, the distal side of the anvil 2 refers to the left side end in the figure, and the proximal side refers to the right side end in the figure.
In this embodiment, the nail belt body 42 of each nail belt 4 is respectively provided with two rows of the staples 41, and the two rows of the staples 41 are arranged along the extending direction of the nail belt body 42 in a staggered manner, and correspondingly to the staples 41, the two rows of the projections 61 of the same nail belt 4 are arranged along the extending direction of the nail belt body 42 in a staggered manner.
In this embodiment, the cartridge assembly includes a fixing member 3, a limiting member 5, a connecting rod 6 and a staple strip 4 at a distal end side, and a staple pushing block 7 is further disposed at a proximal end side of the cartridge assembly, in manufacturing processes, the fixing member 3, the limiting member 5 and the connecting rod 6 are injection molded, and then the cartridge assembly is installed, and a proximal end side of the cartridge assembly is welded to a proximal end side of the connecting rod 6. in another process, the fixing member 3 and the connecting rod 6 may be separately disposed and then connected to . then the staple strip 4 is installed, the distal end side of the staple strip 4 is fixed to the fixing member 3. the connection between the distal end side of the staple strip 4 and the fixing member 3 may be non-detachable or detachable, as shown in fig. 5, in order to define a staple ejection direction of the staples 41, the limiting member 5 and the connecting rod 6 are further disposed on both sides of each row of the staple strip 4, the limiting member 5 and the connecting rod 6 extend in an axial direction of the medical stapler, and the limiting member 5 and the limiting member 6 and the connecting rod 6 are located in a staple cartridge assembly 23, and prevent the staple from deviating from a staple cartridge or staple cartridge assembly 411 when the staple pushing assembly is moved from a staple cartridge tissue, the anvil assembly or a staple cartridge, the staple cartridge assembly 23, the staple cartridge is moved from a staple cartridge, the anvil assembly, and a staple cartridge assembly 23.
In other alternative embodiments, the tab 61 and the staple band body 42 can be -body disposed, for example, by forming the tab 61 on the cartridge module face of the staple band body 42 or by welding the tab 61 to the cartridge module face of the staple band body 42.
In this embodiment, the projections 61 and the staple band body 42 may be provided separately, as shown in fig. 6 to 11, connecting rods 6 are provided between two rows of staples 41, the tops of the connecting rods 6 are provided with the projections 61, that is, the projections 61 are provided on the side of the connecting rod 6 close to the cartridge surface of the cartridge module, the projections 61 protrude upward from the side of the staple band body 42, in order to more clearly show the matching structure of the staple band 4 and the connecting rods 6, limiting members 5 on the outermost side are omitted in fig. 7, steps are performed, the positions of the staple band body 42 corresponding to the respective projections 61 are respectively provided with projection receiving openings 421 for receiving the projections 61, the projections 61 protrude from the projection receiving openings 421 and protrude from the cartridge module surface, the connecting rods 6 and the limiting members 5 may define the receiving spaces and the nail-out directions of the staples 41 together, when the staples 41 are fired, both sides are guided by the side surfaces of the limiting members 5 and the connecting rods 6, so that the staples can smoothly protrude from the openings on the surface of the staple band body 42 without deviating from the axial directions, and the metal of the metal-made of the metal-stainless steel-made, for example, and the metal-made.
In the prior art structure using a single staple, each staple is individually installed inside staple holes, which does not present the positioning problem of the staple, while in the structure using the staple strip 4, since each individual staple hole is not provided, it is necessary to solve the positioning problem of the staple 41 in the staple strip 4 by a step of . as shown in fig. 8, in this embodiment, the link 6 may also define the position of the staple 41 in the cartridge assembly together with the stopper 5 . that is, each row of staples 41 is disposed between the stoppers 5 on the side and the link 6 on the side thereof, each two adjacent links 6 and stoppers 5 define staple receiving spaces in the axial direction of the stapler, the up-and-down movement of the staple 41 is limited only in this staple receiving space, and neither biased to the side of the stopper 5 nor to the side of the link 6, and the movement direction of the link 41 is also limited by the stopper 6 and the stopper 5 to the accurate positioning of the staple at the position in the process of the staple 41 moving to the cartridge assembly face to be disengaged from the staple strip body 42.
Thus, this embodiment not only solves the problem of easy detachment of staples 41 from the staple strip 4 during surgery, but also further solves the problem of positioning of staples 41 in the staple strip 4.
In this embodiment, distal side 611 of tab 61 is a ramp that rises gradually from the distal side to the proximal side, and distal side 611 is smoothly disposed as a whole, i.e., the top end of distal side 611 smoothly transitions to the top surface of tab 61, e.g., a smooth chamfer is provided between distal side 611 and the top surface of tab 61 to prevent sharp corners from damaging tissue when the stapler is closed, proximal side 613 of tab 61 opposite distal side 611, i.e., proximal side 613 adjacent to connecting end 412, is also provided with a ramp that rises gradually from the distal side to the proximal side to enhance the engagement effect with connecting end 412. further , proximal side 613 may be formed as a knife edge to enhance the shearing effect on connecting end 412. in the preferred embodiment of , in the initial state, a -defined spacing is provided between connecting end 412 and proximal side 613 to ensure that staple 41 is deformed during rotation without being blocked by proximal side 613 and that the staple is not fully formed from the staple strip before the staple is not fully formed.
As shown in fig. 8-11, the proximal end side of the tab 61 is provided with a mating opening 612, the connecting end 412 of the staple 41 is provided with a connecting beam, and the connecting beam is positioned in the mating opening 612, i.e., in a direction from the proximal end side to the distal end side, the tab 61 is at least partially overlapped with the connecting end 412 to increase the contact area between the connecting end 412 of the staple 41 and the tab 61 when the staple is separated from the staple tape 4. in this embodiment, the staple pushing block 7 is a wedge-shaped staple pushing block 7, and the staple pushing block 7 is provided with a breaking portion 71 corresponding to the connecting end 412 of the staple 41. as shown in fig. 9, when the stapler is fired, the staple pushing block 7 pushes the staple in the distal end side direction under the action of a pusher bar 8, i.e., the staple pushing block 7 moves in the direction of fig. 9C, the staple 41 is subjected to the pushing force of the distal end block 7 in the stapler side direction, the piercing end 411 of the staple 41 moves towards the staple assembly 2, the anvil 632 with the piercing end of the staple 41 as an axial direction, the connecting end of the staple pushing bar 412 rotates towards the anvil assembly, so that the connecting beam and the connecting beam is separated from the anvil connecting block 61, so that the connecting block 61 and the connecting block 61 is separated from the staple forming assembly 3, thereby cutting assembly, the staple forming assembly is rotated in the staple forming side of the staple forming assembly 369, and the staple forming assembly, so that the staple forming side of the staple forming knife is separated from the staple forming knife 3641, and the staple forming assembly, and the staple forming knife in the staple.
As shown in fig. 12 and 13, the structure of a cartridge assembly according to another embodiment of the present invention is shown, which is different from the previous embodiment in that the protrusion 61 is not disposed on the link but disposed on the cartridge cover 13. as shown in fig. 12, the cartridge assembly further includes a cartridge cover 15, the cartridge cover 15 covers the upper surface of the cartridge belt body 42, and the cartridge cover 15 is opened with a staple outlet 16 corresponding to the staples 41 . when the staples 41 are anastomosed, the piercing ends 411 of the staples 41 protrude from the staple outlet 16 toward the anvil assembly 2. the protrusion 61 is disposed at the staple outlet 16 of the cartridge cover 15, and the protrusion 61 protrudes from the lower surface of the cartridge cover 15 and protrudes toward the staples 41.
The utility model provides a nail storehouse subassembly reaches medical anastomat including it has following advantage:
the utility model provides an staple cartridge components for medical anastomat, it is more convenient to coincide the nail and form on nail area, installation and change, after times operation is accomplished, can only change the nail area, set up the lug on the nail area body, make things convenient for the separation from of coincide nail and nail area body, guarantee that operation in-process coincide the nail can break away from staple cartridge components and coincide the tissue to avoid appearing the condition of bail in the operation, improve the operation effect.
It will be apparent to those skilled in the art that a number of simple inferences or substitutions can be made without departing from the spirit and scope of the invention and these should be construed as within the scope of the invention.
Claims (16)
- The utility model provides a kind of nail bin assembly, which is characterized in that, is used for medical anastomat, the nail bin assembly includes at least nail belts and a plurality of lugs, the nail belt includes the nail belt body that extends along the axial direction of medical anastomat, be provided with at least rows of anastomotic nails that arrange in proper order along the extending direction of nail belt body on the nail belt body, the anastomotic nails are connected to the nail belt body through the connecting end thereof;the projection corresponds to the staple , the projection is located at the distal end side of the connecting end of the corresponding staple, and when the medical stapler is fired, the connecting end of the staple is in contact with the projection to be disconnected from the staple belt body.
- 2. The staple cartridge assembly of claim 1, wherein said staple strip body is provided with two rows of said staples, and wherein said two rows of said staples are staggered along a direction of extension of said staple strip body; the projections corresponding to the two rows of anastomotic nails are arranged in a staggered mode along the extending direction of the nail belt body.
- 3. The staple cartridge assembly of claim 2, wherein tie bars are disposed between said rows of staples, said tie bars having said bumps disposed on the tops thereof.
- 4. The staple cartridge assembly according to claim 3, wherein said staple belt body has a protrusion receiving opening for receiving said protrusion at a position corresponding to each of said protrusions.
- 5. The staple cartridge assembly of claim 1, wherein a distal side of said tab is a ramp that gradually rises from a distal side thereof to a proximal side thereof.
- 6. The staple cartridge assembly of claim 5, wherein the distal side of said tab has a top end that smoothly transitions to the top surface of said tab.
- 7. The staple cartridge assembly of claim 1, wherein a proximal side of said tab is a ramped surface that gradually rises from a distal side thereof to a proximal side thereof.
- 8. The staple cartridge assembly of claim 1, wherein a proximal side of said nubs is formed as a cutting edge.
- 9. The staple cartridge assembly of claim 1, wherein the -side surface of the staple band body facing the anvil of the medical stapler is a staple cartridge assembly face from which the top ends of the tabs protrude.
- 10. The staple cartridge assembly of claim 9, wherein said tab has an mating opening on a proximal side thereof, said staple connecting end having a connecting beam, and said connecting beam being located in said mating opening.
- 11. The staple cartridge assembly of claim 1, further comprising a fastener to which a distal side of said staple band is secured.
- 12. The staple cartridge assembly according to claim 1, wherein a stopper is further disposed on each of two sides of each row of the staple strips, the stoppers extend along an axial direction of the medical stapler, and the stoppers limit a staple ejection direction of the staples.
- 13. The staple cartridge assembly according to claim 1, further comprising a staple cartridge cover covering an upper surface of said staple belt body, said staple cartridge cover defining staple outlets corresponding to said staples .
- 14. The staple cartridge assembly of claim 13, wherein said protrusions are disposed at said staple outlet of said cartridge cover, said protrusions protruding from a lower surface of said cartridge cover.
- 15. The staple cartridge assembly of claim 1, wherein in an initial state, a distal side of said connecting ends of said staples is spaced apart from a proximal side of said tabs.
- 16, medical stapler, comprising the cartridge assembly of any of claims 1-15, wherein the cartridge assembly is defined in any of claims .
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CN201920474022.XU CN209996391U (en) | 2019-04-09 | 2019-04-09 | Nail bin assembly and medical anastomat comprising same |
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CN201920474022.XU CN209996391U (en) | 2019-04-09 | 2019-04-09 | Nail bin assembly and medical anastomat comprising same |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111513784A (en) * | 2020-05-19 | 2020-08-11 | 微至(苏州)医疗科技有限公司 | Olecranon type auxiliary anastomat under mirror |
WO2023036222A1 (en) * | 2021-09-09 | 2023-03-16 | 天臣国际医疗科技股份有限公司 | Staple cartridge assembly and medical stapler |
-
2019
- 2019-04-09 CN CN201920474022.XU patent/CN209996391U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111513784A (en) * | 2020-05-19 | 2020-08-11 | 微至(苏州)医疗科技有限公司 | Olecranon type auxiliary anastomat under mirror |
WO2023036222A1 (en) * | 2021-09-09 | 2023-03-16 | 天臣国际医疗科技股份有限公司 | Staple cartridge assembly and medical stapler |
CN115919393A (en) * | 2021-09-09 | 2023-04-07 | 天臣国际医疗科技股份有限公司 | Nail bin assembly and medical anastomat |
CN115919393B (en) * | 2021-09-09 | 2024-05-28 | 天臣国际医疗科技股份有限公司 | Nail bin assembly and medical anastomat |
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