CN115813472A - Linear cutting anastomat of automatic knife returning jaw assembly - Google Patents
Linear cutting anastomat of automatic knife returning jaw assembly Download PDFInfo
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- CN115813472A CN115813472A CN202211709759.8A CN202211709759A CN115813472A CN 115813472 A CN115813472 A CN 115813472A CN 202211709759 A CN202211709759 A CN 202211709759A CN 115813472 A CN115813472 A CN 115813472A
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Abstract
The invention relates to a linear cutting anastomat of an automatic knife returning jaw assembly, which comprises a gun body assembly, a firing and jaw assembly for controlling an instrument, wherein the gun body assembly is arranged at the front end of the gun body assembly and is linked with the gun body assembly to clamp and cut tissues; the firing part comprises a shell, a closing handle and a handle which is arranged on the shell and used for realizing closing of the anastomosis part through pressing; the closing linkage mechanism is arranged in the shell and is in linkage connection with the closing handle; a trigger handle which is arranged on the shell and is used for realizing the cutting of the anastomotic part by pressing; the firing linkage mechanism is arranged in the shell and is linked and connected with the firing handle; the jaw assembly is divided into jaws and is of a clamp-shaped structure for realizing clamping, anastomosis and cutting; the reset spring is arranged on the firing connecting piece, so that after the firing handle finishes firing, the reset spring drives the firing connecting piece and the jaw to return to the state before non-anastomosis and cutting. It can automatic back cut after the cutting knife accomplishes the cutting, avoids the condition that the cutting knife accidentally injures.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a linear cutting anastomat of an automatic knife returning jaw assembly.
Background
The existing straight line cutting anastomat does not have the situation of knife return after the cutting is finished, because the need of knife return does not exist. But at the in-process of communicating with the doctor, the doctor mentions because the cutting knife can automatic back a knife, in actual operation process, can appear the condition that the cutting knife accidentally injures the tissue, considers that the wound is less, so does not pay attention to.
Disclosure of Invention
The invention aims to: the utility model provides an automatic back knife linear cutting anastomat of subassembly of keeping silent, it accomplishes the cutting back at the cutting knife, can automatic back knife, avoids the condition that the cutting knife accidentally injured.
The invention is realized by the following technical scheme: move back knife and keep silent the straight line cutting anastomat of subassembly, its characterized in that: it comprises
The gun body assembly controls the firing of the instrument; and
the jaw assembly is arranged at the front end of the gun body assembly and is linked with the gun body assembly to clamp and cut tissues;
the firing part comprises
The outer shell is provided with a plurality of grooves,
a closing handle mounted on the housing and configured to close the anastomosis portion by pressing;
the closing linkage mechanism is arranged in the shell and is in linkage connection with the closing handle;
a trigger handle which is arranged on the shell and realizes the cutting of the anastomotic part by pressing;
the firing linkage mechanism is arranged in the shell and is linked and connected with the firing handle;
the jaw assembly is divided into
The jaw is a pincer-like structure used for realizing clamping, anastomosis and cutting;
the clamping connecting piece is connected with the closing linkage mechanism to realize the closing of the jaw;
the firing connecting piece is connected with the firing linkage mechanism to realize anastomosis and cutting of the jaws;
the reset spring is arranged on the firing connecting piece, so that after the firing handle finishes firing, the reset spring drives the firing connecting piece and the jaw to return to a state before anastomosis and cutting.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, after the cutting knife finishes cutting, the cutting knife can be automatically returned, so that the condition that the cutting knife is accidentally injured is avoided.
2. The jaw components of various specifications are collocated, the jaw components can be replaced at will, and the jaw components with small calibers are collocated, so that the operation can be carried out in narrow space in the abdominal cavity by only a tiny incision in the operation, the postoperative recovery is fast, and the postoperative recovery time of a patient is shortened.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is a schematic structural diagram of the present invention for achieving the closing effect;
FIG. 4 is a schematic structural view of the closing bar of FIG. 3;
FIG. 5 is a schematic view of a jaw assembly;
FIG. 6 is a schematic view of the structure at the jaw of the jaw assembly;
FIG. 7 is a schematic structural view of a firing handle and a firing linkage of the present invention;
FIG. 8 is a schematic structural view of a duplex gear set;
FIG. 9 is a schematic structural view of the firing link;
FIG. 10 is a schematic view of a two gauge jaw assembly;
FIG. 11 is a diagram showing a comparison of the variation states of the closed push tube driving the nail pushing seat and the nail bin seat to open and close;
fig. 12 is a cross-sectional view of the gun body assembly and jaw assembly at the disengaged connection.
Description of reference numerals: 100 closure handle, 101 firing handle, 102 firing rack, 200 closure connecting rod, 201 main rod body, 202 tilting rod, 203 chute, 300 connecting rod, 302 casing head, 304 rack, 305 firing rod, 401 closure push tube, 403 nail abutting seat, 404 closure pin, 405 nail cabin seat, 406 step pin, 408, rod firing rod, 409 pushing block, 410 cutting knife, 500 duplex gear set
Detailed Description
The invention is described in detail below with reference to the following description of the drawings:
as shown in fig. 1-12: automatic back knife linear cutting anastomat of keeping silent subassembly, its characterized in that: it comprises
The gun body assembly controls the firing of the instrument; and
the jaw assembly is arranged at the front end of the gun body assembly and is linked with the gun body assembly to clamp and cut tissues;
the firing part comprises
The outer shell is provided with a plurality of grooves,
a closing handle mounted on the housing and configured to close the anastomosis portion by pressing;
the closing linkage mechanism is arranged in the shell and is in linkage connection with the closing handle;
a trigger handle which is arranged on the shell and is used for realizing the cutting of the anastomotic part by pressing;
the firing linkage mechanism is arranged in the shell and is linked and connected with the firing handle;
the jaw assembly is divided into
The jaw is a pincer-shaped structure used for realizing clamping, anastomosis and cutting;
the clamping connecting piece is connected with the closing linkage mechanism to realize the closing of the jaw;
the firing connecting piece is connected with the firing linkage mechanism to realize anastomosis and cutting of the jaws;
the reset spring is arranged on the firing connecting piece, so that after the firing handle finishes firing, the reset spring drives the firing connecting piece and the jaw to return to a state before anastomosis and cutting.
As shown in fig. 11: wherein the jaws comprise a nail abutting seat 403, a nail bin seat 405, a pushing block 409, a cutting knife 410 and an outer sleeve;
the closed linkage mechanism comprises a closed connecting rod 200 and a connecting rod 300, and the front end of the connecting rod 300 is provided with a casing head; the closing connecting rod 200 is rotatably connected in the shell, the closing handle is in linkage connection with the closing connecting rod 200, and the closing connecting rod 200 is hinged with the connecting rod 300, so that the closing handle can be pressed to drive the closing connecting rod 200 to move backwards;
the clamping connecting piece main body is a closed push pipe 401, and the closed push pipe 401 is connected with the casing head and is positioned in the outer casing;
the nail abutting seat 403 and the nail bin seat 405 are in pin fit through a step pin 406 and are connected to the front end of the outer sleeve; a closed push block 402 is arranged in the closed push pipe 401 and behind the nail abutting seat 403 and the nail bin seat 405, and the front end surface of the closed push block 402 is an inclined surface inclined from front to back; the closing pin 404 is assembled in the closing push pipe 401 and located in front of the closing push block 402; the tail of the nail abutting seat 403 is provided with an extension part which extends backwards and obliquely downwards, and the extension part is matched with the inclined surface of the closing push block 402; the closing push tube 401 retreats to finally drive the closing pin 404 to retreat, and the closing pin 404 retreats to touch and drive the extending part of the nail pushing seat 403 to tilt, so that the nail pushing seat 403 and the nail bin seat 405 are closed;
the firing linkage mechanism comprises a firing rack 102, a duplex gear set 500, a rack 304 and a firing rod 305, wherein the firing rack 102 is slidably mounted in the shell and is meshed with a tooth structure arranged on a firing handle, the duplex gear set 500 is rotatably mounted in the shell and is kneaded with the firing rack 102, the rack 304 is slidably mounted in the shell and is combined with the duplex gear set 500, and the firing rod 305 is mounted at the front end of the rack 304;
the firing connecting component is mainly a rod firing rod 408, the firing rod 305 is connected with the rod firing rod 408, and the front end of the rod firing rod 408 is connected with a pushing block 409 and a cutting knife 410;
one end of the return spring is connected to the lever firing bar 408 and the other end of the return spring is directly or indirectly connected to the housing.
The closing connecting rod 200 comprises a main rod body 201, one end of the main rod body 201 is hinged to the shell, and a tilting rod 202 hinged to the middle of the main rod body 201 is arranged on the main rod body 201; a sliding groove 203 is arranged at the lower side of the other end of the main rod body, and a limiting rod inserted into the sliding groove 203 is arranged on the closing handle.
The firing principle here is as follows:
when the linear cutting stapler operation process is performed, the closing handle 100 and the firing handle 101 of the stapler are in an open state, the closing handle 100 is excited for the first time, the closing handle 100 pulls the connecting link assembly 300 to retreat through the closing connecting rod 200, the sleeve head 302 in the connecting rod assembly 300 is connected and buckled with the closing push pipe 401 in the jaw assembly 400, a hole of the closing push pipe 401 in the jaw assembly 400 is buckled and connected with a convex point of the closing push block 402, the closing pin 404 is assembled in the closing push pipe 402, the retreat of the closing push pipe 401 finally drives the closing pin 404 to retreat, the extending part of the nail abutting seat 403 can be touched and driven to tilt in the retreating process of the closing pin 404, and the closing of the nail abutting seat 403 and the nail bin seat 405 is realized.
The second firing process is as follows, when the firing handle 101 is closed, the firing rack 102 is pushed to advance, the firing rack 102 drives the duplicate gear set 500, the duplicate gear set 500 is fixed together through the middle shaft, the duplicate gear set 500 comprises a pinion 501 and a bull gear which are coaxially arranged, and the transmission ratio of the pinion 501 to the bull gear is 2; when the firing rack 102 drives the pinion 501 to rotate, the bull gear 502 is synchronously driven to rotate, the bull gear 502 drives the rack 304 to advance, the firing rod 305 is fixed on the rack 304, the advancing rack 304 drives the firing rod 305 to strike the firing rod 408, the pushing block 409 on the firing rod 408 is pushed to perform nail pushing anastomosis and cutting by the cutting knife 410, the pushing pad 413 arranged in the advancing nail bin 407 of the pushing block 409 moves upwards, the anastomosis nails 414 are placed on the pushing pad 413, the U-shaped anastomosis nails are pressed by the nail pushing seat to form a B shape after the U-shaped anastomosis nails touch the nail pushing seat along with the ascending of the pushing pad, and the process is limited and guided by the guide frame 411. When firing is complete, the spring 412 will pull a string of parts on the rod firing bar 408 to automatically reset.
In another aspect, the frame assembly and jaw assembly are releasably connected.
Specifically, a sleeve head 302 of the gun body assembly is provided with a limiting bump, and a closed push tube 401 of the jaw assembly is provided with an L-shaped groove matched with the limiting bump.
A limiting groove is formed in the front end of the shell of the gun body assembly;
a gripping sleeve 501 is sleeved at the tail end of the jaw assembly, a limiting sleeve 502 extending into the gun body assembly is arranged at the tail end of the gripping sleeve 501, and the tail end of the outer sleeve is fixedly connected with the limiting sleeve 502;
the periphery of the limiting sleeve 502 is provided with an elastic bulge 503 matched with the limiting groove;
the other end of the return spring is connected to the gripping sleeve 501.
Therefore, the jaw assembly is designed in a separated mode and is provided with at least two specifications, wherein the specifications of the pipe diameter at least comprise 5.5mm and 8mm.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the foregoing embodiments or equivalent substitutions for some technical features, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (7)
1. Automatic back knife linear cutting anastomat of keeping silent subassembly, its characterized in that: it comprises
The gun body assembly controls the firing of the instrument; and
the jaw assembly is arranged at the front end of the gun body assembly and is linked with the gun body assembly to clamp and cut tissues;
the firing part comprises
The outer shell is provided with a plurality of grooves,
a closing handle (100) which is attached to the housing and which closes the anastomotic portion by pressing;
the closing linkage mechanism is arranged in the shell and is in linkage connection with the closing handle;
a firing handle (101) which is mounted on the housing and presses the handle to cut the anastomotic part;
the firing linkage mechanism is arranged in the shell and is linked and connected with the firing handle;
the jaw assembly is divided into
The jaw is a pincer-shaped structure used for realizing clamping, anastomosis and cutting;
the clamping connecting piece is connected with the closing linkage mechanism to realize the closing of the jaw;
the firing connecting piece is connected with the firing linkage mechanism to realize anastomosis and cutting of the jaws;
the reset spring is arranged on the firing connecting piece, so that after the firing handle finishes firing, the reset spring drives the firing connecting piece and the jaw to return to a state before anastomosis and cutting.
2. The linear cutting stapler of the automatic backcutting jaw assembly according to claim 1, wherein:
the jaw comprises a nail abutting seat (403), a nail bin seat (405), a pushing block (409), a cutting knife (410) and an outer sleeve;
the closed linkage mechanism comprises a closed connecting rod (200) and a connecting rod (300), and a casing head is arranged at the front end of the connecting rod (300); the closing connecting rod (200) is rotatably connected in the shell, the closing handle is in linkage connection with the closing connecting rod (200), and the closing connecting rod (200) is hinged to the connecting rod (300) so that the closing handle can be pressed to drive the closing connecting rod (200) to move backwards;
the clamping connecting piece main body is a closed push pipe (401), and the closed push pipe (401) is connected with the casing head and is positioned in the outer casing;
the nail abutting seat (403) and the nail bin seat (405) are in pin fit through a step pin (406) and are connected to the front end of the outer sleeve; a closed push block (402) is arranged in the closed push pipe (401) and behind the nail abutting seat (403) and the nail bin seat (405), and the front end surface of the closed push block (402) is an inclined surface inclined from front to back; the closing pin (404) is assembled in the closing push pipe (401) and is positioned in front of the closing push block (402); the tail part of the nail abutting seat (403) is provided with an extension part which extends backwards and downwards obliquely, and the extension part is matched with the inclined surface of the closed push block (402); the closing push pipe (401) retreats to finally drive the closing pin (404) to retreat, and the closing pin (404) can touch and drive the extending part of the nail pushing seat (403) to tilt in the retreating process, so that the nail pushing seat (403) and the nail bin seat (405) are closed;
the firing linkage mechanism comprises a firing rack (102), a duplicate gear set (500), a rack (304) and a firing rod (305), wherein the firing rack (102) is slidably mounted in the shell and is meshed with a tooth structure arranged on the firing handle, the duplicate gear set (500) is rotatably mounted in the shell and is kneaded with the firing rack (102), the rack (304) is slidably mounted in the shell and is combined with the duplicate gear set (500), and the firing rod (305) is mounted at the front end of the rack (304);
the firing connecting piece is mainly a rod firing rod (408), the firing rod (305) is connected with the rod firing rod (408), and the front end of the rod firing rod (408) is connected with a pushing block (409) and a cutting knife (410);
one end of the return spring is connected with a rod firing rod (408), and the other end of the return spring is directly or indirectly connected with the shell.
3. The linear cutting stapler of the automatic backcutting jaw assembly according to claim 1, wherein: the closing connecting rod (200) comprises a main rod body (201), one end of the main rod body (201) is hinged to the shell, and a tilting rod (202) hinged to the middle of the main rod body (201) is arranged on the main rod body (201); a sliding groove (203) is arranged at the lower side of the other end of the main rod body, and a limiting rod inserted into the sliding groove (203) is arranged on the closed handle.
4. The linear cutting stapler of the automatic retracting jaw assembly according to any one of claims 1 to 3, wherein: the gun body component and the jaw component are connected in a detachable mode.
5. The linear cutting stapler of the automatic retracting jaw assembly of claim 4, wherein: the gun body assembly is characterized in that a sleeve head (302) of the gun body assembly is provided with a limiting lug, and a closed push pipe (401) of the jaw assembly is provided with an L-shaped groove matched with the limiting lug.
6. The linear cutting stapler of the automatic retracting jaw assembly of claim 4, wherein: a limiting groove is formed in the front end of the shell of the gun body assembly;
a gripping sleeve (501) is sleeved at the tail end of the jaw assembly, a limiting sleeve (502) extending into the gun body assembly is arranged at the tail of the gripping sleeve (501), and the tail of the outer sleeve is fixedly connected with the limiting sleeve (502);
the periphery of the limiting sleeve (502) is provided with an elastic bulge (503) matched with the limiting groove;
the other end of the return spring is connected to the gripping sleeve (501).
7. The linear cutting stapler of the automatic retracting jaw assembly of claim 4, wherein: the subassembly of keeping silent is equipped with specification more than two kinds at least, wherein, the pipe diameter specification size has included 5.5mm and 8mm at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211709759.8A CN115813472A (en) | 2022-12-29 | 2022-12-29 | Linear cutting anastomat of automatic knife returning jaw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211709759.8A CN115813472A (en) | 2022-12-29 | 2022-12-29 | Linear cutting anastomat of automatic knife returning jaw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115813472A true CN115813472A (en) | 2023-03-21 |
Family
ID=85519377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211709759.8A Pending CN115813472A (en) | 2022-12-29 | 2022-12-29 | Linear cutting anastomat of automatic knife returning jaw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115813472A (en) |
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2022
- 2022-12-29 CN CN202211709759.8A patent/CN115813472A/en active Pending
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