CN212816386U - Endoscopic linear cutting anastomat assembly - Google Patents
Endoscopic linear cutting anastomat assembly Download PDFInfo
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- CN212816386U CN212816386U CN202020219283.XU CN202020219283U CN212816386U CN 212816386 U CN212816386 U CN 212816386U CN 202020219283 U CN202020219283 U CN 202020219283U CN 212816386 U CN212816386 U CN 212816386U
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Abstract
The utility model discloses a linear cutting anastomat component under an endoscope, which comprises an anastomat jaw, a component inner core, a turning pull piece and a turning push-pull rod; the rear end of the anastomat jaw is hinged with the front end of the assembly inner core, and the anastomat jaw and the assembly inner core can rotate relatively around a vertical axis; the front part of the assembly inner core is provided with a vertical convex steering part; the bending pull piece is U-shaped, two free ends of the bending pull piece are fixedly connected with the rear end of the jaw of the anastomat, and the inner side of the bending part of the bending pull piece is matched with the periphery of the protruding turning part; the left side or the right side of the bending pulling piece is connected with the front end of the bending push-pull rod, and the stapler jaw can be driven to turn left and right by the push-pull action of the bending push-pull rod. The utility model discloses an above-mentioned setting has low moment of torsion, makes the doctor obtain better turn and feels, has big turn angle simultaneously, makes the doctor have better operating space, can be suitable for the medical treatment under the more complicated clinical condition.
Description
Technical Field
The utility model relates to the field of medical equipment, especially relate to a straight line cutting anastomat subassembly under chamber mirror.
Background
Endoscopic staplers play the most critical role in surgery. Due to the limitation of the space in the abdominal cavity or the thoracic cavity, the traditional linear endoscope anastomat cannot completely and effectively reach the required operation position to clamp, cross and anastomose tissues, so that an elbow anastomat with a turnable anastomat jaw (comprising a nail box assembly and a nail pushing seat) is needed. Under the linear state, the elbow anastomat capable of being turned enters the thoracic cavity or the abdominal cavity through the puncture outfit, the jaw of the anastomat is controlled to be turned by a certain angle through the bending control mechanism on the handle outside the body, and a series of operations such as clamping, transverse cutting, anastomosis and the like are carried out on the operation part. After the operation is finished, the patient is changed into a linear state again and is withdrawn from the body.
When the endoscopic linear cutting anastomat assembly is operated to perform an operation, the anastomat jaw in the assembly is controlled to rotate leftwards and rightwards by controlling the steering control structure on the endoscopic linear cutting anastomat, so that the body positions of different operation environments are completed. As shown in fig. 1, the laparoscopic linear cutting stapler assembly in the prior art includes a stapler jaw 1, an assembly inner core 2, and a steering link 3, wherein the stapler jaw 1 is rotatably connected to the assembly inner core 2 through an upper rotary head assembly 4, upper and lower connecting sheets 5, and is connected to a steering knob pin 41 of the upper rotary head assembly 4 through a head end hole 31 of the steering link 3, and the steering link 3 is pushed or pulled under the assistance of a hand to make the stapler jaw 1 at the front end of the assembly swing left and right around a rotating shaft to form left and right maximum 45 ° bending, as shown in fig. 2 and 3. In the process, the force arm is gradually reduced in the propelling process (the direction of the force action line is unchanged, and the distance from the centroid to the perpendicular line of the force action line is gradually reduced along with the position change of the bending action point), so that the torque is gradually increased. Due to the difference of the surgical site of the patient, the bending angle cannot completely satisfy a series of operations such as clamping, crossing and inosculating the surgical site. The existing steering connecting rod is in rigid connection, and the length of a force arm between the existing steering connecting rod and a rotating shaft is limited by space, so that the left-right swinging angle is limited. The ideal operation position can not be reached in a series of operations such as partial operation clamping, transverse cutting, anastomosis and the like, the operation difficulty of the doctor is not completely and effectively reduced, and the operation hand feeling of the doctor can be reduced by the torque increasing operation in the turning process.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a straight line cutting anastomat subassembly under chamber mirror that turn angle is big, the moment of torsion is low, turn and feel good.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a linear cutting anastomat assembly under an endoscope comprises an anastomat jaw, an assembly inner core, a turning pull piece and a turning push-pull rod; the rear end of the anastomat jaw is hinged with the front end of the assembly inner core, and the anastomat jaw and the front end of the assembly inner core can rotate relatively around a vertical axis; the front part of the assembly inner core is provided with a vertical protruding steering part; the bending pull piece is U-shaped, two free ends of the bending pull piece are fixedly connected with the rear end of the jaw of the anastomat, and the inner side of the bending part of the bending pull piece is matched with the periphery of the protruding steering part; the left side or the right side of the bending pulling piece is connected with the front end of the bending push-pull rod, and the stapler jaw can be driven to turn left and right under the push-pull action of the bending push-pull rod.
As the utility model discloses further improve, the location axle of epirelief steering part adoption epirelief has the bearing pulley at the epaxial cover in location, the periphery cooperation of the inboard and bearing pulley of turning part of turning pulling-on piece.
Further, the free end of the turning pull piece is connected with the rear end of the jaw of the anastomat by using a transverse connecting pin; and mounting holes are formed in the positions, close to the rear, of the left side and/or the right side of the bent pull piece, and the front end of the bent push-pull rod is hung in the mounting holes.
Further, the turning pull tab is replaced with a turning wire rope in whole or in part.
The front end of the turning joint is hinged with the rear end of the jaw of the anastomat, a first vertical rotating shaft is formed at the hinged position, the rear end of the turning joint is hinged with the front end of the inner core of the assembly, and a second vertical rotating shaft is formed at the hinged position; the free end of the turning pull piece penetrates through the turning joint from back to front and then is fixedly connected with the rear end of the jaw of the anastomat.
Furthermore, the anastomat jaw comprises a nail box assembly positioned at the lower part, a nail abutting seat connected with the nail box assembly and positioned at the upper part, and a positioning piece positioned at the inner side of the rear part of the nail abutting seat; the free end of the turning pulling-on piece is fixedly connected between the positioning piece and the rear part of the nail abutting seat through a transverse connecting pin.
Furthermore, the turning joint is connected with an upper protruding shaft arranged on a positioning piece at the rear part of the jaw of the anastomat through an upper positioning shaft hole arranged at the front end, and the turning joint is connected with a positioning shaft hole arranged at the front end of the inner core of the assembly through a lower protruding shaft arranged at the rear end.
Furthermore, the left side and the right side of the turning joint are respectively provided with a turning pulling-on piece penetrating opening, and the connecting end of the turning push-pull rod and the turning pulling-on piece is positioned at the rear end of the turning pulling-on piece penetrating opening.
Further, the rear end of the protruding turning portion is located at a distance from the second vertical rotation axis that is greater than the distance between the first vertical rotation axis and the second vertical rotation axis.
The utility model also provides a linear cutting anastomat under chamber mirror, connect the linear cutting anastomat subassembly under chamber mirror at the handle front end including handle and the aforesaid.
By adopting the technical scheme, the utility model discloses at least, following advantage has:
1. the flexible bending pulling piece or wire rope is adopted for reversing, the left bending and the right bending are always kept to be the pulling process, the moment arm is prevented from being reduced in the bending process, the moment is stable, and a larger bending angle can be achieved.
2. The bending joint with double rotating centers is additionally arranged, the bending radius is increased, and a larger bending angle can be achieved.
3. The medical treatment under more complicated clinical conditions can be realized by bending a larger angle, the bending radius is reasonable, and the stable torque enables doctors to obtain better operation hand feeling.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic diagram of an exploded view of a laparoscopic linear cutting stapler assembly of the prior art;
FIGS. 2 and 3 are schematic diagrams of the laparoscopic linear cutting stapler assembly of FIG. 1 bent to the right and left, respectively;
fig. 4 is a schematic view of the overall structure of the endoscopic linear cutting stapler assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a portion of the laparoscopic linear cutting stapler assembly of FIG. 4;
FIG. 6 is a schematic diagram of an exploded view of the laparoscopic linear cutting stapler assembly of FIG. 5;
FIG. 7 is a schematic view of the laparoscopic linear cutting stapler assembly of FIG. 4 in various alternate states.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
For the convenience of explanation, the utility model discloses with anastomat jaw end definition for preceding, operator end be the back, the anastomat jaw direction of opening and shutting is from top to bottom, and the direction of turning of anastomat jaw is for controlling, and the restriction is not applied to in the setting of above-mentioned direction the utility model discloses.
As shown in fig. 4-7, the present embodiment provides an endoscopic linear cutting stapler assembly, which includes a stapler jaw 1 and an assembly inner core 2, where the assembly inner core 2 belongs to a fixed part of a housing, and the stapler assembly further includes a bent pull tab 3 and a bent push-pull rod 4; the rear end of the anastomat jaw 1 is hinged with the front end of the assembly inner core 2, and the anastomat jaw and the assembly inner core can rotate around a vertical axis; wherein, the rear end of the anastomat jaw 1 can be directly hinged with the front end of the component inner core 2 through the matching of a shaft and a hole, and can also be hinged through an intermediate connecting piece, and only the anastomat jaw 1 can be ensured to rotate relative to the front end of the component inner core 2 under the action of power.
As shown in fig. 6, the turning pull-tab 3 is U-shaped, two free ends of the turning pull-tab are fixedly connected with the rear end of the anastomat jaw 1, and the inner side of the turning part is matched with the periphery of a vertical protruding turning part arranged at the front part of the assembly inner core 2; the main function of the vertically protruding deflection part is to position and deflect the bending tab 3, preferably but not limited to, using a positioning shaft 21 that is convex upward, and in order to reduce friction with the bending tab 3, a bearing pulley 5 is preferably sleeved on the positioning shaft 21, and the inner side of the deflection part of the bending tab 3 is matched with the outer periphery of the bearing pulley 5. The left side or the right side of the bent pull tab 3 is connected with the front end of the bent push-pull rod 4.
Taking the bending push-pull rod 4 shown in fig. 6 as an example, when the bending push-pull rod 4 is pushed by a force, the bending push-pull rod 4 drives the left side of the bending pull-pull piece 3 to move forward, so as to drive the right side of the bending pull-pull piece 3 to move backward and drive the anastomat jaw 1 connected with the front end of the bending pull-pull piece 3 to bend to the right. On the contrary, when the turning push-pull rod 4 is pulled by the aid of the power, the turning push-pull rod 4 drives the left side of the turning pull-tab 3 to move backwards, so that the right side of the turning pull-tab 3 is driven to move forwards and the anastomat jaw 1 connected with the front end of the turning pull-tab 3 is driven to turn leftwards. Of course, the above description is only an illustration of the push-pull bending working principle of the present invention, the bending push-pull rod 4 can also be installed on the right side of the bending pull-tab 3, at this moment, the stapler jaw 1 bends to the left side under the action of the pushing force, and bends to the right side under the action of the pulling force.
In the push-pull process, the bending push-pull rod 4 fixed on one side of the bending pull piece 3 applies pushing force or pulling force, so that the reduction of the force arm in the bending process is avoided, the moment is stable, and a larger bending angle can be realized.
In the anastomat assembly, in order to facilitate connection, the free end of the turning pull piece 3 is connected with the rear end of the anastomat jaw 1 by using a transverse connecting pin 6; the left side and/or the right side of the bent pull piece 3 is/are provided with a mounting hole 31 near the rear, and the front end of the bent push-pull rod 4 is hung in the mounting hole 31.
It will be understood, of course, that the bent tab 3 is not limited to a sheet-like structure, as a flexible stainless steel sheet structure may be used, and may be replaced in whole or in part by a bent wire rope structure, both of which may serve a similar purpose.
As mentioned above, the rear end of the stapler jaw 1 and the front end of the assembly core 2 can be directly hinged by matching the shaft and the hole, and there is a rotation center at this time, but the turning radius at this time is smaller, therefore, the connection form of the intermediate movable connecting piece (turning joint 7) with double rotation centers is preferably adopted in this embodiment. At the moment, as shown in fig. 6, the front end of the turning joint 7 is hinged with the rear end of the anastomat jaw 1, a first vertical rotating shaft A is formed at the hinged position, the rear end of the turning joint 7 is hinged with the front end of the assembly inner core 2, and a second vertical rotating shaft B is formed at the hinged position; the free end of the turning pull-tab 3 passes through the turning joint 7 from back to front and then is fixedly connected with the rear end of the anastomat jaw 1.
Through the arrangement, when the bending pull-push rod 4 drives the bending pull-tab 3 to move during work, the bending joint 7 can be driven simultaneously, so that the anastomat jaw 1 can rotate around the double rotating shafts, the bending radius is increased, a larger bending angle can be realized, the anastomat jaw is suitable for medical treatment under more complex clinical conditions, the reasonable bending radius is realized, and a doctor can obtain better operation hand feeling.
In the connection relation between the bending joint 7 and the anastomat jaw 1 and the assembly inner core 2, the following structure is preferred:
an upper positioning shaft hole 71 is arranged at the front end of the turning joint 7, a positioning piece 8 is arranged at the rear part of the anastomat jaw 1 (comprising a nail box component 11 positioned at the lower part and a nail abutting seat 12 connected with the nail box component 11 and positioned at the upper part), and the positioning piece 8 is arranged at the inner side of the rear part of the nail abutting seat 12. The free end of the bent and turned pull tab 3 is fixedly connected between the positioning piece 8 and the rear part of the nail abutting seat 12 through the transverse connecting pin 6. An upper protruding shaft 81 is arranged on the positioning piece 8, the upper protruding shaft 81 is connected with an upper positioning shaft hole 71 at the front end of the turning joint 7, and a first vertical rotating shaft A is formed at the connection position; the rear end of the turning joint 7 is provided with a lower protruding shaft 72, the front end of the assembly inner core 2 is provided with a positioning shaft hole 22, the turning joint 7 is connected with the positioning shaft hole 22 arranged at the front end of the assembly inner core 2 through the lower protruding shaft 72 arranged at the rear end, and a second vertical rotating shaft B is formed at the joint.
Of course, it can be understood that as long as the double rotation centers can be formed, the reasonable increased turning radius can be realized, the connection relationship of the double rotation centers of the present invention should not be limited by the above arrangement, and the positions of the shaft and the hole can be interchanged.
In a preferred embodiment, the left and right side surfaces of the bending joint 7 are respectively provided with bending pull-tab penetrating openings (not shown), and the connecting ends of the bending push-pull rod 4 and the bending pull-tab 3 are located at the rear ends of the bending pull-tab penetrating openings. The distance from the rear end of the protruding turning part to the second vertical rotation axis is greater than the distance between the first vertical rotation axis and the second vertical rotation axis.
The embodiment also provides a linear cutting anastomat under endoscope, which comprises a handle and a linear cutting anastomat assembly under endoscope connected to the front end of the handle, wherein the linear cutting anastomat assembly under endoscope preferably adopts the linear cutting anastomat assembly under endoscope.
During operation, the endoscopic linear cutting anastomat enters a thoracic cavity or an abdominal cavity through the puncture outfit in a linear state, the bending mechanism on the handle outside the body controls the jaw of the anastomat to bend for a certain angle, and a series of operations such as clamping, transverse cutting, anastomosis and the like are carried out on an operation part; after the operation is finished, the operation is changed into a linear state again, and the operation is taken out of the body.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (8)
1. A linear cutting anastomat assembly under an endoscope is characterized by comprising an anastomat jaw, an assembly inner core, a bent pull piece and a bent push-pull rod;
the rear end of the anastomat jaw is hinged with the front end of the assembly inner core, and the anastomat jaw and the front end of the assembly inner core can rotate relatively around a vertical axis;
the front part of the assembly inner core is provided with a vertical protruding steering part;
the bending pull piece is U-shaped, two free ends of the bending pull piece are fixedly connected with the rear end of the jaw of the anastomat, and the inner side of the bending part of the bending pull piece is matched with the periphery of the protruding steering part;
the left side or the right side of the bending pulling piece is connected with the front end of the bending push-pull rod, and the stapler jaw can be driven to turn left and right under the push-pull action of the bending push-pull rod.
2. The endoscopic linear cutting stapler assembly according to claim 1, wherein the protruding steering part is a positioning shaft protruding upwards, a bearing pulley is sleeved on the positioning shaft, and the inner side of the steering part of the steering pull piece is matched with the outer periphery of the bearing pulley.
3. The laparoscopic linear cutting stapler assembly of claim 1, wherein the free end of said bent tab is connected to the rear end of the stapler jaw using a transverse connecting pin; and mounting holes are formed in the positions, close to the rear, of the left side and/or the right side of the bent pull piece, and the front end of the bent push-pull rod is hung in the mounting holes.
4. The laparoscopic linear cutting stapler assembly of claim 1, wherein said bent pull tab is replaced in whole or in part with a bent wire rope.
5. The linear endoscopic cutting stapler assembly according to any one of claims 1-4, further comprising a bending joint, wherein the front end of the bending joint is hinged with the rear end of the stapler jaw, the hinged part forms a first vertical rotating shaft, the rear end of the bending joint is hinged with the front end of the assembly inner core, and the hinged part forms a second vertical rotating shaft;
the free end of the turning pull piece penetrates through the turning joint from back to front and then is fixedly connected with the rear end of the jaw of the anastomat.
6. The laparoscopic linear cutting stapler assembly according to claim 5, wherein said stapler jaws comprise a staple cartridge assembly located at a lower portion and a staple abutment connected to the staple cartridge assembly located at an upper portion, and further comprising a positioning member located inside a rear portion of the staple abutment;
the free end of the turning pulling-on piece is fixedly connected between the positioning piece and the rear part of the nail abutting seat through a transverse connecting pin.
7. The endoscopic linear cutting stapler assembly according to claim 6, wherein the turning joint is connected with an upper protruding shaft arranged on a positioning piece at the rear part of the stapler jaw through an upper positioning shaft hole arranged at the front end, and the turning joint is connected with a positioning shaft hole arranged at the front end of the assembly inner core through a lower protruding shaft arranged at the rear end.
8. The endoscopic linear cutting stapler assembly according to claim 5, wherein the left and right side faces of the bending joint are respectively provided with a bending pull-tab through opening, and the connecting end of the bending push-pull rod and the bending pull-tab is located at the rear end of the bending pull-tab through opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020219283.XU CN212816386U (en) | 2020-02-27 | 2020-02-27 | Endoscopic linear cutting anastomat assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020219283.XU CN212816386U (en) | 2020-02-27 | 2020-02-27 | Endoscopic linear cutting anastomat assembly |
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| CN212816386U true CN212816386U (en) | 2021-03-30 |
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| CN202020219283.XU Active CN212816386U (en) | 2020-02-27 | 2020-02-27 | Endoscopic linear cutting anastomat assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115624359A (en) * | 2022-12-22 | 2023-01-20 | 北京派尔特医疗科技股份有限公司 | Electric suturing device |
| CN116019512A (en) * | 2022-12-22 | 2023-04-28 | 北京派尔特医疗科技股份有限公司 | Electric stitching instrument |
| WO2023104044A1 (en) * | 2021-12-07 | 2023-06-15 | 江苏风和医疗器材股份有限公司 | Jaw driving device for surgical instrument and surgical instrument |
| CN117481724A (en) * | 2023-06-30 | 2024-02-02 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
-
2020
- 2020-02-27 CN CN202020219283.XU patent/CN212816386U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023104044A1 (en) * | 2021-12-07 | 2023-06-15 | 江苏风和医疗器材股份有限公司 | Jaw driving device for surgical instrument and surgical instrument |
| CN115624359A (en) * | 2022-12-22 | 2023-01-20 | 北京派尔特医疗科技股份有限公司 | Electric suturing device |
| CN116019512A (en) * | 2022-12-22 | 2023-04-28 | 北京派尔特医疗科技股份有限公司 | Electric stitching instrument |
| WO2024131804A1 (en) * | 2022-12-22 | 2024-06-27 | 北京派尔特医疗科技股份有限公司 | Electric suturing instrument |
| WO2024131800A1 (en) * | 2022-12-22 | 2024-06-27 | 北京派尔特医疗科技股份有限公司 | Electric suturing device |
| CN117481724A (en) * | 2023-06-30 | 2024-02-02 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
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