CN110420042B - A stapler with an automatic alignment device for stapler and staple anvil forming groove - Google Patents
A stapler with an automatic alignment device for stapler and staple anvil forming groove Download PDFInfo
- Publication number
- CN110420042B CN110420042B CN201910858143.9A CN201910858143A CN110420042B CN 110420042 B CN110420042 B CN 110420042B CN 201910858143 A CN201910858143 A CN 201910858143A CN 110420042 B CN110420042 B CN 110420042B
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- China
- Prior art keywords
- anvil
- staple
- stapler
- alignment device
- automatic alignment
- Prior art date
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- 230000003044 adaptive effect Effects 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000003872 anastomosis Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 210000001072 colon Anatomy 0.000 description 1
- 210000001198 duodenum Anatomy 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 210000000496 pancreas Anatomy 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 210000000813 small intestine Anatomy 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 210000002229 urogenital system Anatomy 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
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
- 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
- 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
- A61B2017/07257—Stapler heads characterised by its anvil
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Surgical Instruments (AREA)
Abstract
本发明涉及了一种具有吻合钉与钉砧成型槽自动对位装置的吻合器，包括钉仓、钉仓架、钉砧以及转接头；其中，钉仓和钉仓架相固定形成第一装配体，且与钉砧相对而置。在钉砧上设置有钉成型槽。转接头、钉仓架以及钉砧借助于销轴铰接为一体。销轴和与之相配的销孔之间为间隙配合。在第一装配体上设置有定位凸起，相对应地，在钉砧上开设有与定位凸起相适配的定位凹槽。如此，在钉仓相对于钉砧进行旋转闭合的过程中，定位凸起可以自动导入定位凹槽内，即确保了钉位相对于钉成型槽的对位准确性，与此同时，迫使钉仓相对于钉砧沿左右方向以及前后方向进行适应性位移调整。
The present invention relates to a stapler with an automatic alignment device for staples and anvil forming grooves, comprising a staple magazine, a staple magazine frame, an anvil and an adapter; wherein the staple magazine and the staple magazine frame are fixed to form a first assembly, and are arranged opposite to the anvil. A staple forming groove is provided on the anvil. The adapter, the staple magazine frame and the anvil are hinged as a whole by means of a pin shaft. There is a clearance fit between the pin shaft and the matching pin hole. A positioning protrusion is provided on the first assembly, and correspondingly, a positioning groove matched with the positioning protrusion is provided on the anvil. In this way, during the process of the staple magazine rotating and closing relative to the anvil, the positioning protrusion can be automatically introduced into the positioning groove, that is, the alignment accuracy of the nail position relative to the nail forming groove is ensured, and at the same time, the staple magazine is forced to perform adaptive displacement adjustment relative to the anvil along the left-right direction and the front-back direction.
Description
Technical Field
The invention relates to the technical field of medical instrument manufacturing, in particular to an anastomat with an automatic alignment device for anastomotic nails and nail anvil forming grooves.
Background
In laparoscopic surgery and thoracoscopic surgery, a laparoscopic cutting stapler is generally used for cutting anastomosis operations of esophagus, stomach, duodenum, small intestine, colon, rectum, appendix, gall bladder, pancreas, spleen and the like in the digestive tract, cutting anastomosis operations of lung, trachea and the like in the respiratory tract, and cutting anastomosis operations of bladder, uterus and the like in the genitourinary system, and by the application of the laparoscopic cutting stapler, the surgical wound can be greatly reduced, the surgical time can be shortened, and the surgical quality can be improved.
In the actual use process of the anastomat, the consistency of the relative positions of the nail bin and the nail anvil is ensured, and the alignment accuracy of the nail position and the nail forming groove is further ensured. In the prior art, firstly, the nail bin and the nail bin frame are fixed, then the nail bin and the nail anvil are assembled and formed by the pin shaft as a whole, and correspondingly, pin holes are formed on the corresponding side walls of the nail bin frame and the nail anvil (as shown in fig. 1). However, the pin hole is required to have higher position precision in the assembling mode, and the pin shaft is required to have strict assembling precision relative to the pin hole, so that the calculation difficulty of a size chain and the difficulty of manufacturing work are greatly increased, and the yield of products is lower. Thus, a technician is required to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing the anastomat which has simple structural design and easy assembly and ensures that a nail bin has good alignment precision relative to a nail anvil.
In order to solve the technical problems, the invention relates to an anastomat with an automatic alignment device for an anastomotic nail and an anvil forming groove, which comprises a nail bin, a nail bin frame, an anvil and an adapter, wherein the nail bin and the nail bin frame are fixed to form a first assembly body and are opposite to the nail anvil. The nail anvil is provided with a nail forming groove. The adapter, the nail bin frame and the nail anvil are hinged into a whole by virtue of the pin shaft. The pin shaft is in clearance fit with the pin hole matched with the pin shaft. The first assembly body is provided with a positioning protrusion, and correspondingly, the nail anvil is provided with a positioning groove matched with the positioning protrusion.
As a further improvement of the disclosed technical solution, positioning projections are arranged on the cartridge frame.
Of course, as another modification of the above technical solution, the positioning protrusion may also be disposed on the staple cartridge.
As a further improvement of the technical scheme disclosed by the invention, a guide inclined plane is arranged on the positioning protrusion.
As a further improvement of the disclosed technical solution, an anti-deflection propping part is arranged between the first assembly body and the nail anvil.
As a further improvement of the technical scheme disclosed by the invention, the deflection-preventing propping part is a propping boss which is arranged on the front outer side wall and the rear outer side wall of the nail bin frame and is arranged around the pin hole of the nail bin frame.
Of course, the anti-deflection propping part can also be propping bosses which are arranged on the front inner side wall and the rear inner side wall of the nail anvil and are arranged around the pin holes on the anti-deflection propping part.
As a further improvement of the technical scheme disclosed by the invention, the pin holes formed on the first assembly body are round holes, the corresponding pin holes formed on the nail anvil are kidney-shaped holes, and the pin holes extend along the left-right direction.
Of course, as another modification of the above technical solution, the pin hole formed on the anvil may be a circular hole, and the corresponding pin hole formed on the first assembly is a kidney-shaped hole, which also extends along the left-right direction.
Compared with the anastomat with the traditional design structure, by adopting the technical scheme disclosed by the invention, the positioning protrusion can be automatically guided into the positioning groove in the process of rotating and closing the nail bin relative to the nail anvil, namely, the positioning accuracy of the nail position relative to the nail forming groove is ensured, and meanwhile, the nail bin is forced to carry out adaptive displacement adjustment relative to the nail anvil along the left-right direction and front-back direction.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a prior art stapler.
Fig. 2 is a schematic perspective view of a stapler having an automatic alignment device for staples and anvil forming grooves in accordance with the present invention.
Fig. 3 is a main view (jaw open state) of the stapler having the automatic alignment device of the staple and anvil forming grooves of the present invention.
Fig. 4 is a main view (jaw closed state) of the stapler having the automatic alignment device of the staples and the anvil forming grooves of the present invention.
Fig. 5 is a cross-sectional view A-A of fig. 4.
Fig. 6 is a schematic perspective view of a cartridge frame in a stapler having an automatic alignment device of staples and anvil forming grooves of the present invention.
Fig. 7 is a schematic perspective view of a staple cartridge in a stapler having an automatic alignment device of staples and anvil forming grooves of the present invention.
Fig. 8 is a schematic perspective view of an anvil in a stapler having an automatic alignment device of staples and anvil forming slots in accordance with the present invention.
1-First assembly body, 11-nail bin, 111-nail position, 12-nail bin frame, 121-positioning protrusion, 122-containing groove, 2-nail anvil, 21-positioning groove, 22-nail forming groove, 3-adapter, 4-pin shaft, 5-deflection-preventing propping part and 51-propping boss.
Detailed Description
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the following, the present invention will be described in further detail with reference to the specific embodiments, and fig. 2,3 and 4 respectively show a perspective view of an anastomat with an automatic alignment device for staples and anvil forming grooves and a front view of an open and close state in the present invention, which mainly comprises a cartridge 11, a cartridge frame 12, an anvil 2, an adapter 3, and the like, wherein a receiving groove 122 (as shown in fig. 6) is provided on the cartridge frame 12 for placing and fixing the cartridge 11 to form a whole, and is named as a first assembly 1 for convenience of the following description. The first assembly 1 is positioned opposite the anvil 2. A staple forming groove 22 (as shown in fig. 8) is provided on the anvil 2, and accordingly, staple sites 111 (as shown in fig. 7) are uniformly distributed on the opposite surface of the staple cartridge 11. The adapter 3, the cartridge holder 12 and the anvil 2 are hinged into a whole by means of the pin 4. Pin holes matched with the pin shafts 4 are formed in the first assembly body 1 and the pin anvil 2, and the pin holes and the pin shafts are in clearance fit. A positioning protrusion 121 is provided on the first assembly body 1, and correspondingly, a positioning groove 21 adapted to the positioning protrusion 121 is provided on the anvil 2. Thus, during actual operation, when the stapler is excited, the staple cartridge 11 performs a rotary closing motion relative to the anvil 2 about the central axis of the pin shaft 4, and during this process, the positioning protrusions 121 can be automatically guided into the positioning grooves 21 (as shown in fig. 5), and at the same time, the staple cartridge 11 is forced to perform an adaptive displacement adjustment relative to the anvil 2 in the left-right direction and the front-rear direction, so that the alignment accuracy of the staple position relative to the staple forming grooves is ensured.
In general, the positioning protrusion 121 is preferably provided on the cartridge frame 12 (as shown in fig. 6) and is formed by downwardly extending a sidewall of the receiving groove 122 for convenience of manufacture and processing cost. It should be noted that, the positioning protrusion 121 may be disposed on the staple cartridge 11 (not shown in the drawings) according to circumstances.
In order to meet the operation requirement, the cartridge frame 12, the cartridge 11 and the anvil 2 are required to have a larger length-width ratio, so that the three are required to have higher assembly precision at the hinge position, when the assembly clearance is out of tolerance, the forward-backward offset phenomenon of the cartridge 11 relative to the anvil 2 is extremely easy to occur, and the offset value is gradually increased along with the increase of the size in the length direction. In order to solve the above technical problem, an anti-deflection abutting portion 5 (as shown in fig. 6) may be provided between the first assembly body 1 and the anvil 2, so as to reduce the requirement for the dimensional accuracy of each component itself while ensuring the assembly accuracy of the cartridge holder 12, the cartridge 11 and the anvil 2. The particular embodiment recommends that the anti-deflection abutment 5 is designed in the form of an abutment boss 51 provided on the front and rear exterior side walls of the cartridge housing 12 and disposed about its own pin aperture (as shown in fig. 6). It should be noted that, the abutment boss 51 is generally formed by directly extending the front and rear side walls of the cartridge frame 12, and the thickness thereof is controlled to be 0.5-1mm. Of course, the abutment boss 51 may also preferably be an elastomeric rubber pad, which is glued to the cartridge housing 12 (not shown) by means of glue.
It should be noted that, as a modification of the above-mentioned technical solution, the abutment boss 51 may be disposed on the front and rear inner side walls of the anvil 2 according to circumstances, and also disposed around the pin hole (not shown in the drawings).
Furthermore, a guiding inclined plane can be arranged on the positioning protrusion 121, so that the positioning protrusion 121 is led into the positioning groove 21, and the adaptive position adjustment of the nail bin 11 in the rotating process relative to the nail anvil 2 is facilitated.
Generally, the pin holes formed in the first assembly 1 are preferably circular holes, and the corresponding pin holes formed in the anvil 2 are kidney-shaped holes extending in the left-right direction to ensure a sufficient adjustable distance between the staple cartridge 11 and the anvil 2. Naturally, as another alternative of the above-mentioned technical solution, the pin holes formed on the anvil 2 may be circular holes, and the corresponding pin holes formed on the first assembly 1 are kidney-shaped holes, and extend in the left-right direction as well.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910858143.9A CN110420042B (en) | 2019-09-11 | 2019-09-11 | A stapler with an automatic alignment device for stapler and staple anvil forming groove |
| PCT/CN2020/110245 WO2021047365A1 (en) | 2019-09-11 | 2020-08-20 | Anastomat comprising device for automatic alignment of anastomat stapler and stapler anvil shaping groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910858143.9A CN110420042B (en) | 2019-09-11 | 2019-09-11 | A stapler with an automatic alignment device for stapler and staple anvil forming groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110420042A CN110420042A (en) | 2019-11-08 |
| CN110420042B true CN110420042B (en) | 2024-12-13 |
Family
ID=68418982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910858143.9A Active CN110420042B (en) | 2019-09-11 | 2019-09-11 | A stapler with an automatic alignment device for stapler and staple anvil forming groove |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110420042B (en) |
| WO (1) | WO2021047365A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420042B (en) * | 2019-09-11 | 2024-12-13 | 康奇舒宁(苏州)医疗科技有限公司 | A stapler with an automatic alignment device for stapler and staple anvil forming groove |
| CN112353443B (en) * | 2021-01-12 | 2021-05-04 | 骄英医疗器械(上海)有限公司 | Nail bin assembly, nail anvil assembly, anastomat and assembling method thereof |
| CN113288273B (en) * | 2021-05-25 | 2025-01-10 | 常州安康医疗器械有限公司 | Laparoscopic cutting stapler stapler assembly |
| CN118105120B (en) * | 2024-03-29 | 2025-03-04 | 宝玛医疗科技(无锡)有限公司 | Anastomat |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5562701A (en) * | 1994-02-18 | 1996-10-08 | Ethicon Endo-Surgery, Inc. | Cable-actuated jaw assembly for surgical instruments |
| CN103687553A (en) * | 2011-11-16 | 2014-03-26 | 奥林巴斯医疗株式会社 | Medical instrument |
| CN210811270U (en) * | 2019-09-11 | 2020-06-23 | 康奇舒宁(苏州)医疗科技有限公司 | Anastomat with automatic aligning device for anastomosis nail and nail anvil forming groove |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280722B (en) * | 2017-05-09 | 2023-12-29 | 苏州美东汇成精密部件有限公司 | Disposable nail box for laparoscope linear cutting anastomat |
| US10945732B2 (en) * | 2018-01-17 | 2021-03-16 | Covidien Lp | Surgical stapler with self-returning assembly |
| CN110420042B (en) * | 2019-09-11 | 2024-12-13 | 康奇舒宁(苏州)医疗科技有限公司 | A stapler with an automatic alignment device for stapler and staple anvil forming groove |
-
2019
- 2019-09-11 CN CN201910858143.9A patent/CN110420042B/en active Active
-
2020
- 2020-08-20 WO PCT/CN2020/110245 patent/WO2021047365A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5562701A (en) * | 1994-02-18 | 1996-10-08 | Ethicon Endo-Surgery, Inc. | Cable-actuated jaw assembly for surgical instruments |
| CN103687553A (en) * | 2011-11-16 | 2014-03-26 | 奥林巴斯医疗株式会社 | Medical instrument |
| CN210811270U (en) * | 2019-09-11 | 2020-06-23 | 康奇舒宁(苏州)医疗科技有限公司 | Anastomat with automatic aligning device for anastomosis nail and nail anvil forming groove |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021047365A1 (en) | 2021-03-18 |
| CN110420042A (en) | 2019-11-08 |
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