CN111588429A - Protection mechanism for preventing anastomat from being fired for two times, anastomat and nail bin - Google Patents
Protection mechanism for preventing anastomat from being fired for two times, anastomat and nail bin Download PDFInfo
- Publication number
- CN111588429A CN111588429A CN202010530473.8A CN202010530473A CN111588429A CN 111588429 A CN111588429 A CN 111588429A CN 202010530473 A CN202010530473 A CN 202010530473A CN 111588429 A CN111588429 A CN 111588429A
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- China
- Prior art keywords
- nail
- pushing driving
- piece
- cartridge
- protection mechanism
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—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, e.g. tourniquets
- 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
Abstract
The invention provides a protection mechanism for preventing an anastomat from being fired for the second time, wherein the anastomat comprises a nail bin accommodating part, a nail bin and a nail pushing driving part, and the upper surface of the nail pushing driving part comprises a horizontal plane and an inclined plane; the nail pushing driving piece can move between an initial position and a firing position; the protection mechanism comprises an elastic biasing member, a lower pressing member, a limiting groove and a limiting pin; when the nail pushing driving piece is located at the initial position, the elastic biasing piece is arranged on the nail bin accommodating part and provides upward biasing force for the bottom of the nail pushing driving piece, the limiting groove is arranged on the horizontal plane of the nail pushing driving piece, and the limiting pin is relatively fixed with the nail bin accommodating part and is located above the limiting groove. The invention can realize the effect of preventing the secondary percussion of the anastomat by matching the elastic biasing part, the lower pressing part, the limiting groove and the limiting pin, and has low manufacturing cost and simple and convenient structure.
Description
Technical Field
The invention relates to a medical instrument, in particular to a protection mechanism for preventing secondary percussion of an anastomat, the anastomat and a nail bin.
Background
The anastomat is used as a device for replacing the traditional manual suture, is convenient to use, tight and proper in tightness, particularly has the advantages of being fast in suture, simple and convenient to operate, few in side effects and operation complications and the like, enables the tumor operation which cannot be resected in the past to be resected at the focus, and is popular and advocated by clinical surgeons at home and abroad. A surgical stapler, such as an endoscopic cutting stapler, can include an end effector that can be moved or articulated relative to an elongate shaft assembly. The end effector is typically configured to secure tissue to be excised between clamping devices, which typically include structure therein configured to receive a staple cartridge. The handle portion for operation is then configured to control the closing of the clamping device, as well as the pushing of the blade to cut and the pushing of the staples to effect stapling.
In order to prevent an operator from mistakenly pushing the cutter again after completing anastomosis and causing unnecessary injury to a human body, a hollow nail bin protection device is generally arranged on an end effector of the anastomat, for example, the application number CN201911115569.1 discloses a hollow nail bin non-firing device of a disposable intracavity cutting anastomat, and the hollow nail bin non-firing device is provided with a driving sleeve, a safety spring, a fixing fork, a firing safety pin, an upper half shell, a lower half shell, a cutter and a cutter pushing plate. The doctor can avoid carrying out the mistake percussion to empty nail storehouse in the operation, has reduced misoperation's possibility to the operation safety has been guaranteed.
However, the empty magazine protection device in the prior art has a complex structure, increases the difficulty of installation, and cannot ensure that the empty magazine protection mechanism completely and stably enters the locking position after being triggered, so that the empty magazine protection mechanism which has a simple and convenient structure and can be stably locked is required to solve the problems in the prior art.
Disclosure of Invention
In order to solve the technical problem, the technical scheme of the invention is realized as follows:
the technical scheme is that the protection mechanism for preventing the anastomat from being fired for the second time, the anastomat comprises a nail bin accommodating part, a nail bin and a nail pushing driving part, and the upper surface of the nail pushing driving part comprises a horizontal plane and an inclined plane; the nail pushing driving piece can move between an initial position and a firing position;
the protection mechanism comprises an elastic biasing member, a lower pressing member, a limiting groove and a limiting pin;
when the nail pushing driving piece is positioned at the initial position, the elastic biasing piece is arranged on the nail bin accommodating part and provides upward biasing force to the bottom of the nail pushing driving piece, the limiting groove is arranged on the horizontal plane of the nail pushing driving piece, and the limiting pin is relatively fixed with the nail bin accommodating part and positioned above the limiting groove;
the nail pushing driving piece moves from the initial position to the firing position to push the pressing piece from the pressing position to the disengaging position;
the lower pressing piece is arranged on the nail bin and is in contact with the inclined surface of the nail pushing driving piece when the lower pressing piece is positioned at a lower pressing position so as to overcome the biasing force of the elastic biasing piece, and the horizontal plane of the nail pushing driving piece is lower than the lower surface of the limiting pin; when the pushing piece is located at the separation position and the pushing nail driving piece is located at the initial position, the limiting pin is clamped into the limiting groove.
Furthermore, the lower pressing piece is an L-shaped limiting pin, and the L-shaped limiting pin is pivoted with the nail bin.
Furthermore, the L-shaped limiting pin comprises a vertical part and a horizontal part perpendicular to the vertical part, the vertical part is pivoted with the nail bin, and the axis of the pivoting is perpendicular to the nail pushing direction of the nail pushing driving part.
Further, the nail bin further comprises an accommodating cavity for accommodating the horizontal part of the L-shaped limiting pin, and when the L-shaped limiting pin is located at the disengaging position, the horizontal part of the L-shaped limiting pin is located in the accommodating cavity. Or the lower pressing piece is fixed on the nail bin, and the nail pushing driving piece can be damaged to be positioned at a separation position when moving from the initial position to the firing position.
Further, the elastic biasing part is an elastic sheet, one end of the elastic sheet is fixed with the nail bin accommodating part, and the other end of the elastic sheet is abutted against the lower surface of the nail pushing driving piece.
In addition, the application also provides an anastomat which comprises a nail bin accommodating part, a nail bin, a nail pushing driving part and the protection mechanism;
the upper surface of the nail pushing driving piece comprises a horizontal plane and a slope; the staple pusher drive is movable between an initial position and a fired position.
In addition, the application also provides a nail bin which is arranged in the anastomat and comprises a pressing piece.
Furthermore, the lower pressing piece is an L-shaped limiting pin, the L-shaped limiting pin is pivoted with the nail bin, the L-shaped limiting pin comprises a vertical part and a horizontal part perpendicular to the vertical part, the vertical part is pivoted with the nail bin, and the axis of the pivoting is perpendicular to the nail pushing direction of the nail pushing driving piece.
Further, the nail bin further comprises an accommodating cavity for accommodating the horizontal part of the L-shaped limiting pin, and when the L-shaped limiting pin is located at the pressing-down position, the horizontal part of the L-shaped limiting pin is located in the accommodating cavity.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
(1) the effect of preventing the anastomat from being fired secondarily can be achieved through the matching of the elastic biasing part, the lower pressing part, the limiting groove and the limiting pin, the manufacturing cost is low, and the structure is simple and convenient;
(2) only need add a holding down piece to the nail storehouse to do not influence original one-tenth nail structure, reform transform easily, be fit for batch production.
Drawings
FIG. 1 is a schematic view of an external structure of a staple driving member in an initial position according to an embodiment of the present application;
FIG. 2 is a partial cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural diagram of a protection mechanism of the embodiment of the present application before the firing of the staple cartridge;
FIG. 4 is a schematic structural diagram of a protection mechanism according to an embodiment of the present disclosure after a staple cartridge is fired;
FIG. 5 is a bottom view of the staple cartridge prior to firing;
FIG. 6 is a bottom view of the staple cartridge after firing.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Example 1:
as shown in fig. 1 to 6, the present embodiment provides a protection mechanism for preventing a stapler from secondary firing, specifically, the stapler includes an execution end, the execution end includes a cartridge accommodating portion 1, a cartridge 2, a staple pushing driving member 3, an anvil 8 and a connecting tube 9, wherein the cartridge accommodating portion 1 is fixedly connected to the connecting tube 9, the anvil 8 is hinged to the connecting tube 9, the cartridge 2 is installed in the cartridge accommodating portion 1, the staple pushing driving member 3 is connected to a driving mechanism through the connecting tube 9, and an upper surface of the staple pushing driving member 3 includes a horizontal surface and an inclined surface; the nail pushing driving piece 3 can move between an initial position and a firing position under the driving of the driving mechanism; in the process that the nail pushing driving part 3 moves from the initial position to the triggering position, the inclined surface of the nail pushing driving part 3 can push the nail pushing block in the nail bin 2 to move upwards so as to push the suturing nails out of the nail bin outlet, and therefore the anastomosis process is completed.
Wherein, the protection mechanism comprises an elastic biasing member 4, a lower pressing member 5, a limit groove 6 and a limit pin 7;
as shown in fig. 3, when the staple driving member 3 is in the initial position, the elastic biasing member 4 is disposed on the staple cartridge receiving portion 1 and provides an upward biasing force to the bottom of the staple driving member 3, the limit groove 6 is disposed on the horizontal surface of the staple driving member 3, and the limit pin 7 is fixed relative to the staple cartridge receiving portion 1 and is located above the limit groove 6; the lower pressing piece 5 is arranged on the nail bin 2, when the lower pressing piece 5 is positioned at a lower pressing position, the horizontal part 51 of the lower pressing piece 5 is contacted with the inclined surface of the nail pushing driving piece 3 to overcome the biasing force of the elastic biasing piece 4, and the horizontal surface of the nail pushing driving piece 3 is lower than the lower surface of the limiting pin 7; therefore, the limit pin 7 does not limit the nail pushing driving piece 3, and the nail pushing driving piece 3 can forward trigger the nail bin;
the nail pushing driving piece 3 moves from the initial position to the firing position to push the lower pressing piece 5 from the lower pressing position to the disengaging position; when the staple driving member 3 is reset again, the staple driving member 3 tilts upward due to the resilient biasing member 4 because the pressing member 5 has been pushed away from the original pressing-down limiting position, and the stopper pin 7 is engaged in the stopper groove 6 when the pressing member 5 is at the disengagement position and the staple driving member 3 is at the initial position, as shown in fig. 4. Therefore, the nail pushing driving piece 3 cannot be pushed forwards again to carry out secondary percussion, so that the protection effect is achieved, after the nail bin is pushed forwards by the nail pushing driving piece 3 and is fired, and when the nail bin returns to the initial position, the nail pushing driving piece 3 is not limited by the lower pressing piece 5, and can be blocked by the limiting pin 7 and cannot move forwards, and accidental injury to an operator is prevented.
Preferably, the lower member 5 is an L-shaped stopper pin, the L-shaped stopper pin is pivotally connected to the nail magazine 2, the L-shaped stopper pin includes a vertical portion 51 and a horizontal portion 52 perpendicular to the vertical portion 51, the vertical portion 51 is pivotally connected to the nail magazine 2, and an axis of the pivotal connection is perpendicular to a nail pushing direction of the nail pushing driving member 3, when the nail pushing driving member 3 moves from an initial position to a percussion position, a forward pushing force is generated on the horizontal portion 52, at this time, because the vertical portion 51 is pivotally connected to the nail magazine, the horizontal portion 52 rotates around an axis of the vertical portion, so as to leave the original depression position, and therefore, the stopper pin 7 is no longer limited by the downward position of the lower member. The nail cartridge 2 further comprises a receiving cavity 21 for receiving the horizontal part 52 of the L-shaped stop pin, and when the L-shaped stop pin is located at the disengaged position, the horizontal part 52 of the L-shaped stop pin is located in the receiving cavity 21. The accommodation cavity 21 is arranged to allow the L-shaped stopper pin to have a space for rotation, so that the restriction of the staple driving member 3 can be completely released.
Further, the elastic biasing member 4 is an elastic sheet, specifically made of metal material or elastic polymer material, one end of the elastic sheet is fixed with the magazine accommodating portion 1, and the other end of the elastic sheet abuts against the lower surface of the staple driving member 3. In other embodiments, the resilient biasing member 4 may be a spring or other element capable of providing an upward biasing force to the staple driving member 3.
In addition, the protection mechanism in the embodiment can also prevent misoperation when the nail bin is not installed. When the nail bin 2 is not installed in the nail bin accommodating part 1, the nail pushing driving part 3 is clamped with the limiting pin 7 through the limiting groove 6 due to the fact that the L-shaped limiting pin is not limited, and therefore the nail bin can not be pushed forwards, and the empty nail bin protection effect is formed. When a normal unfired matched nail bin is installed into the nail bin accommodating cavity, the downward pressing piece in the nail bin can generate downward pressure on the nail pushing driving piece, so that the limiting groove 6 is separated from the limiting pin 7, and the nail pushing driving piece 3 can be used for firing a new nail bin forward again.
Example 2:
in this embodiment, the difference from embodiment 1 is that the pushing member 5 is fixed to the nail magazine 2, and the pushing member driving member 3 can break the pushing member 5 to be located at the disengagement position when moving from the initial position to the firing position, wherein the pushing member 5 is made of a material that is easily broken, such as brittle plastic, or a thin elastic member, so that when the pushing member driving member 3 pushes forward, the structure of the pushing member 5 is directly broken to disable the position limitation, and the state of the broken pushing member 5 is the disengagement position. The lower pressing piece 5 in the embodiment can be more convenient by adopting the arrangement structure, and the installation process is simpler. Or in other modes, as long as the pressing piece is set to be pushed away from the current position, the design that the nail pushing driving piece after the nail is pushed down is not needed to be taken as the protection form of the application; this is done in such a way that the resilient biasing member is able to lift the staple driving element upwards, so that the retaining pin snaps into the retaining groove when the resilient biasing member returns to the initial position, so that the staple driving element is driven forward again.
Example 3:
in this embodiment, a staple cartridge is protected, the staple cartridge has a lower pressing member 5, the lower pressing member 5 is an L-shaped limiting pin, the L-shaped limiting pin is pivoted with the staple cartridge 2, the L-shaped limiting pin includes a vertical portion 51 and a horizontal portion 52 perpendicular to the vertical portion 51, the vertical portion 51 is pivoted with the staple cartridge 2, an axis of the pivot is perpendicular to a staple pushing direction of the staple pushing driving member 3, the staple cartridge 2 further includes an accommodating cavity 21 for accommodating the horizontal portion 52 of the L-shaped limiting pin, when the L-shaped limiting pin is located at a downward pressing position, the horizontal portion 52 of the L-shaped limiting pin is located in the accommodating cavity 21, the staple cartridge is used for being installed in the stapler of embodiment 1 in a matching manner, and forms an empty staple cartridge protection effect with corresponding other protection mechanism components.
As can be seen from the above-described embodiments,
(1) the effect of preventing the anastomat from being fired secondarily can be achieved through the matching of the elastic biasing part, the lower pressing part, the limiting groove and the limiting pin, the manufacturing cost is low, and the structure is simple and convenient;
(2) only need add a holding down piece to the nail storehouse to do not influence original one-tenth nail structure, reform transform easily, be fit for batch production.
As described above, the present invention has been explained fully in accordance with the gist of the present invention, but the present invention is not limited to the above-described embodiments and implementation methods, and features of the embodiments may be combined with each other without contradiction. A practitioner of the related art can make various changes and implementations within a range allowed by the technical idea of the present invention.
Claims (10)
1. A protection mechanism for preventing a stapler from being fired again comprises a staple cartridge accommodating part (1), a staple cartridge (2) and a staple pushing driving part (3), wherein the upper surface of the staple pushing driving part (3) comprises a horizontal plane and an inclined plane; the nail pushing driving piece (3) can move between an initial position and a firing position;
the protection mechanism is characterized by comprising an elastic biasing member (4), a lower pressing member (5), a limiting groove (6) and a limiting pin (7);
when the nail pushing driving piece (3) is located at an initial position, the elastic biasing piece (4) is arranged on the nail bin accommodating part (1) and provides an upward biasing force to the bottom of the nail pushing driving piece (3), the limiting groove (6) is arranged on the horizontal plane of the nail pushing driving piece (3), and the limiting pin (7) is fixed relative to the nail bin accommodating part (1) and is located above the limiting groove (6);
the nail pushing driving piece (3) moves from an initial position to a firing position and can push the lower pressing piece (5) from a pressing position to a disengaging position;
the lower pressing piece (5) is arranged on the nail bin (2) and is in contact with the inclined surface of the nail pushing driving piece (3) when the lower pressing piece (5) is located at a lower pressing position so as to overcome the biasing force of the elastic biasing piece (4), and the horizontal plane of the nail pushing driving piece (3) is lower than the lower surface of the limiting pin (7); when the pushing piece (5) is located at a separation position and the pushing nail driving piece (3) is located at an initial position, the limiting pin (7) is clamped into the limiting groove (6).
2. The protection mechanism for preventing the secondary firing of the anastomat according to claim 1, wherein the lower pressing piece (5) is an L-shaped limit pin which is pivoted with the nail bin (2).
3. The protection mechanism for preventing the secondary firing of the anastomat according to claim 2, wherein the L-shaped limiting pin comprises a vertical part (51) and a horizontal part (52) which is perpendicular to the vertical part (51), the vertical part (51) is pivoted with the nail bin (2), and the axis of the pivoting is perpendicular to the nail pushing direction of the nail pushing driving part (3).
4. A protection mechanism for preventing the secondary firing of a stapler according to claim 3, wherein said cartridge (2) further comprises a housing cavity (21) for housing the horizontal portion (52) of said L-shaped stop pin, said horizontal portion (52) of said L-shaped stop pin being located in said housing cavity (21) when said L-shaped stop pin is in the disengaged position.
5. A protection mechanism for preventing the secondary firing of a stapler according to claim 1, wherein said hold-down member (5) is fixed to said cartridge (2), and said staple pushing drive member (3) is capable of breaking said hold-down member (5) to a disengaged position when moving from an initial position to a fired position.
6. A protection mechanism for preventing the secondary firing of the stapler according to claim 1, wherein the elastic biasing member (4) is an elastic piece having one end fixed to the cartridge receiving portion (1) and the other end abutting against the lower surface of the staple pushing driving member (3).
7. A stapler, characterized by comprising a cartridge receiving portion (1), a cartridge (2), a staple driving member (3) and a protection mechanism according to any one of claims 1-6;
the upper surface of the nail pushing driving piece (3) comprises a horizontal plane and an inclined plane; the nail pushing driving piece (3) can move between an initial position and a firing position.
8. A cartridge, characterized in that the cartridge (2) is intended to be arranged in a stapler according to claim 7, which cartridge (2) comprises a hold-down (5).
9. The nail magazine according to claim 8, characterized in that the hold-down member (5) is an L-shaped stop pin which is pivoted to the nail magazine (2), the L-shaped stop pin comprises a vertical part (51) and a horizontal part (52) which is perpendicular to the vertical part (51), the vertical part (51) is pivoted to the nail magazine (2), and the axis of the pivoting is perpendicular to the nail pushing direction of the nail pushing driving member (3).
10. The staple cartridge according to claim 9, characterized in that said staple cartridge (2) further comprises a receiving cavity (21) for receiving the horizontal portion (52) of said L-shaped stop pin, said horizontal portion (52) of said L-shaped stop pin being located in said receiving cavity (21) when said L-shaped stop pin is in the depressed position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010530473.8A CN111588429B (en) | 2020-06-11 | 2020-06-11 | Protection mechanism for preventing anastomat from being fired for two times, anastomat and nail bin |
| PCT/CN2020/114280 WO2021248722A1 (en) | 2020-06-11 | 2020-09-09 | Protection mechanism for preventing second firing of stapler, stapler, and staple cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010530473.8A CN111588429B (en) | 2020-06-11 | 2020-06-11 | Protection mechanism for preventing anastomat from being fired for two times, anastomat and nail bin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111588429A true CN111588429A (en) | 2020-08-28 |
| CN111588429B CN111588429B (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010530473.8A Active CN111588429B (en) | 2020-06-11 | 2020-06-11 | Protection mechanism for preventing anastomat from being fired for two times, anastomat and nail bin |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111588429B (en) |
| WO (1) | WO2021248722A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248722A1 (en) * | 2020-06-11 | 2021-12-16 | 苏州贝诺医疗器械有限公司 | Protection mechanism for preventing second firing of stapler, stapler, and staple cartridge |
| CN114259269A (en) * | 2021-12-23 | 2022-04-01 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
| WO2023138269A1 (en) * | 2022-01-24 | 2023-07-27 | 苏州英途康医疗科技有限公司 | Surgical instrument |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114587467B (en) * | 2022-03-21 | 2023-10-27 | 宝玛医疗科技(无锡)有限公司 | Anastomat for protecting cutter from bending |
| CN115054302B (en) * | 2022-06-23 | 2023-11-03 | 常州安康医疗器械有限公司 | Endoscopic cutting stapler assembly |
| WO2024011915A1 (en) * | 2022-07-13 | 2024-01-18 | 杭州迈瑞医疗科技有限公司 | Surgical instrument and staple cartridge assembly |
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| CN114259269B (en) * | 2021-12-23 | 2023-12-26 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111588429B (en) | 2020-12-22 |
| WO2021248722A1 (en) | 2021-12-16 |
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Effective date of registration: 20230721 Address after: No. 108, Jinfeng South Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU FRANKENMAN MEDICAL EQUIPMENT Co.,Ltd. Address before: No.9, Yuping Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU BEINUO MEDICAL EQUIPMENT Co.,Ltd. |