CN219461264U - Linear cutting anastomat with automatic cutter-back jaw assembly - Google Patents
Linear cutting anastomat with automatic cutter-back jaw assembly Download PDFInfo
- Publication number
- CN219461264U CN219461264U CN202223598203.4U CN202223598203U CN219461264U CN 219461264 U CN219461264 U CN 219461264U CN 202223598203 U CN202223598203 U CN 202223598203U CN 219461264 U CN219461264 U CN 219461264U
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- 238000010304 firing Methods 0.000 claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000003872 anastomosis Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 241000357216 Oplegnathus woodwardi Species 0.000 claims description 2
- 208000012260 Accidental injury Diseases 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a linear cutting anastomat of an automatic cutter-back jaw assembly, which comprises a gun body assembly, a firing control device and a jaw assembly, wherein the firing control device 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 gun body assembly comprises a shell, a closing handle and a handle, wherein the closing handle is arranged on the shell and used for closing the anastomotic part by pressing; the closing linkage mechanism is arranged in the shell and is in linkage connection with the closing handle; the firing handle is arranged on the shell and used for realizing the cutting of the anastomotic part by pressing; the firing linkage mechanism is arranged in the shell and is in linkage connection with the firing handle; the jaw assembly is divided into jaws and is used for realizing a clamp-shaped structure for clamping, anastomosis and cutting; the reset spring is arranged on the firing connector, so that after the firing handle finishes firing, the reset spring drives the firing connector and the jaw to return to the state before anastomosis and cutting. After the cutting knife completes cutting, the automatic cutter returning device can automatically return the cutter, and accidental injury of the cutting knife is avoided.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a linear cutting anastomat of an automatic cutter-back jaw assembly.
Background
The existing linear cutting anastomat has no cutter return after cutting is finished, because the cutter return is not necessary. However, in the process of communicating with the doctor, the doctor has the problem that the cutter can automatically return the cutter, so that the situation that the cutter accidentally damages tissues can occur in the actual operation process, and the small wound is considered, so that the doctor does not pay attention to the situation.
Disclosure of Invention
The utility model aims at: the linear cutting anastomat with the automatic cutter returning jaw assembly can automatically return the cutter after the cutter completes cutting, and the situation of accidental injury of the cutter is avoided.
The utility model is realized by the following technical scheme: the linear cutting anastomat of the movable knife return jaw assembly is characterized in that: it comprises
A gun body assembly for controlling 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 gun body assembly comprises
The outer shell of the shell is provided with a plurality of grooves,
a closing handle mounted to the housing and closing the anastomotic part by pressing;
the closing linkage mechanism is arranged in the shell and is in linkage connection with the closing handle;
the firing handle is arranged on the shell and used for realizing the cutting of the anastomotic part by pressing;
the firing linkage mechanism is arranged in the shell and is in linkage connection with the firing handle;
the jaw assembly is divided into
The jaw is used for realizing a clamp-shaped structure for 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 connector, so that after the firing handle finishes firing, the reset spring drives the firing connector and the jaw to return to the state before anastomosis and cutting.
Compared with the prior art, the utility model has the beneficial effects that:
1. after the cutting knife finishes cutting, the automatic cutter returning device can automatically return the cutter, and the situation of accidental injury of the cutting knife is avoided.
2. The jaw components with various specifications are matched, the jaw components can be replaced at will, and through the matching of the jaw components with small calibers, the surgical operation can be performed in a narrow space in the abdominal cavity by only needing a tiny incision in the operation, the postoperative recovery is quick, and the postoperative recovery time of a patient is shortened.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of the overall structure of the present utility model;
FIG. 3 is a schematic view of a structure for achieving a closing effect according to the present utility model;
FIG. 4 is a schematic view of the closure bar of FIG. 3;
FIG. 5 is a schematic view of the structure of the jaw assembly;
FIG. 6 is a schematic view of the structure at the jaws of the jaw assembly;
FIG. 7 is a schematic view of the firing handle and firing linkage of the present utility model;
FIG. 8 is a schematic structural diagram of a twin gearset;
FIG. 9 is a schematic view of the firing connector;
FIG. 10 is a schematic view of a two gauge jaw assembly;
FIG. 11 is a diagram showing a comparison of the state of the closure push tube driving the opening and closing of the staple holder and the cartridge holder;
FIG. 12 is a cross-sectional view of the split junction of the gun body assembly and the jaw assembly.
Description of the reference numerals: 100 closing handle, 101 firing handle, 102 firing rack, 200 closing connecting rod, 201 main rod body, 202 tilting rod, 203 sliding chute, 300 connecting rod, 302 sleeve head, 304 rack, 305 firing rod, 401 closing push tube, 403 nail supporting seat, 404 closing pin, 405 nail bin seat, 406 step pin, 408, rod firing rod, 409 pushing block, 410 cutting knife, 500 duplex gear set
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings:
as shown in fig. 1-12: automatic cutting anastomat of back knife jaw subassembly, its characterized in that: it comprises
A gun body assembly for controlling 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 gun body assembly comprises
The outer shell of the shell is provided with a plurality of grooves,
a closing handle mounted to the housing and closing the anastomotic part by pressing;
the closing linkage mechanism is arranged in the shell and is in linkage connection with the closing handle;
the firing handle is arranged on the shell and used for realizing the cutting of the anastomotic part by pressing;
the firing linkage mechanism is arranged in the shell and is in linkage connection with the firing handle;
the jaw assembly is divided into
The jaw is used for realizing a clamp-shaped structure for 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 connector, so that after the firing handle finishes firing, the reset spring drives the firing connector and the jaw to return to the state before anastomosis and cutting.
As shown in fig. 11: wherein the jaw comprises a nail propping seat 403, a nail bin seat 405, a pushing block 409, a cutting knife 410 and an outer sleeve;
the closing linkage mechanism comprises a closing 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 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 connector body is a closed push tube 401, and the closed push tube 401 is connected with the casing head and is positioned in the outer casing;
the nail propping seat 403 is in pin fit with the nail bin seat 405 through a step pin 406 and is connected to the front end of the outer sleeve; a closing push block 402 is arranged in the closing push tube 401 and behind the nail propping seat 403 and the nail bin seat 405, and the front end surface of the closing push block 402 is an inclined surface inclined from front to back and downward; a closure pin 404 is assembled in the closure push tube 401 and is located in front of the closure push block 402; the tail part of the nail propping seat 403 is provided with an extending part which extends downwards obliquely backwards and is matched with the inclined surface of the closing push block 402; the closing push tube 401 is retracted to finally drive the closing pin 404 to retract, and the extending part of the nail propping seat 403 is touched and driven to tilt in the retracting process of the closing pin 404, so that the nail propping 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 bar 305, wherein the firing rack 102 is slidably arranged in a shell and is meshed with a tooth structure arranged on a firing handle, the duplex gear set 500 is rotatably arranged in the shell and is meshed with the firing rack 102, the rack 304 is slidably arranged in the shell and is meshed with the duplex gear set 500, and the firing bar 305 is arranged at the front end of the rack 304;
the firing connector is 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 cutter 410;
one end of the return spring is connected with the rod firing rod 408, and the other end of the return spring is directly or indirectly connected with the shell.
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 tilted 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 operation process of the linear cutting anastomat is carried out, a closing handle 100 and a firing handle 101 of the anastomat are in an open state, the first action is to excite the closing handle 100, the closing handle 100 pulls a connecting rod assembly 300 to retreat through a closing connecting rod 200, a sleeve head 302 in the connecting rod assembly 300 is connected with a closing push tube 401 in a jaw assembly 400 to be buckled, a hole of the closing push tube 401 in the jaw assembly 400 is buckled with a salient point of the closing push block 402 to be connected together, a closing pin 404 is assembled in the closing push tube 402, the retreating of the closing push tube 401 finally drives the closing pin 404 to retreat, and an extending part of a nail propping seat 403 is touched and driven to tilt in the retreating process of the closing pin 404, so that the closing of the nail propping seat 403 and a 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 duplex gear set 500, the duplex gear set 500 is fixed together through the intermediate shaft, and the duplex gear set 500 comprises a pinion 501 and a large gear which are coaxially arranged, and the transmission ratio of the pinion 501 and the large gear is 2; when the firing rack 102 drives the pinion 501 to rotate, the pinion 502 is synchronously driven to rotate, the pinion 502 drives the rack 304 to advance, the firing bar 305 is fixed on the rack 304, the advancing rack 304 drives the firing bar 305 to strike the bar firing bar 408, the pushing block 409 on the bar firing bar 408 is pushed to perform push-nail anastomosis and the cutting knife 410 is pushed to perform cutting, the pushing pad 413 arranged in the nail bin 407 is pushed upwards by the advancing of the pushing block 409, the anastomosis nail 414 is placed on the pushing pad 413, and the U-shaped anastomosis nail is extruded and deformed into a B shape by the nail abutting seat after the upward collision of the pushing pad with the nail abutting seat, and the process is limited and guided by the guide frame 411. When firing is completed, the spring 412 pulls a string of parts on the firing bar 408 to automatically reset.
In another aspect, the gun body assembly and the jaw assembly are in a detachable connection.
Specifically, the casing head 302 of the gun body assembly is provided with a limit bump, and the closing push tube 401 of the jaw assembly is provided with an L-shaped groove matched with the limit bump.
A limit 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 limit 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 limit sleeve 502;
an elastic bulge 503 matched with the limit groove is arranged on the periphery of the limit sleeve 502;
the other end of the return spring is connected to the grip sleeve 501.
The jaw assembly is designed in a separation way and is provided with at least two specifications, wherein the specification of the pipe diameter at least comprises 5.5mm and 8mm.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.
Claims (7)
1. Automatic cutting anastomat of back knife jaw subassembly, its characterized in that: it comprises
A gun body assembly for controlling 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 gun body assembly comprises
The outer shell of the shell is provided with a plurality of grooves,
a closing handle (100) mounted to the housing and which is pressed to close the anastomosis;
the closing linkage mechanism is arranged in the shell and is in linkage connection with the closing handle;
a firing handle (101) mounted to the housing and configured to be pushed to cut the anastomotic site;
the firing linkage mechanism is arranged in the shell and is in linkage connection with the firing handle;
the jaw assembly is divided into
The jaw is used for realizing a clamp-shaped structure for 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 connector, so that after the firing handle finishes firing, the reset spring drives the firing connector and the jaw to return to the state before anastomosis and cutting.
2. The automatic knife back jaw assembly linear cutting stapler of claim 1, wherein:
the jaw comprises a nail propping seat (403), a nail bin seat (405), a pushing block (409), a cutting knife (410) and an outer sleeve;
the closing linkage mechanism comprises a closing 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 rotationally 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 connector 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 propping seat (403) is in pin fit with the nail bin seat (405) through a step pin (406) and is connected to the front end of the outer sleeve; a closing push block (402) is arranged in the closing push tube (401) and behind the nail supporting seat (403) and the nail bin seat (405), and the front end surface of the closing push block (402) is an inclined surface inclined from front to back and downward; the closing pin (404) is assembled in the closing push tube (401) and positioned in front of the closing push block (402); the tail part of the nail supporting seat (403) is provided with an extension part which extends downwards obliquely backwards and is matched with the inclined surface of the closing push block (402); the closing push tube (401) is retracted to finally drive the closing pin (404) to retract, and the extending part of the nail supporting seat (403) is touched and driven to tilt in the retracting process of the closing pin (404), so that the nail supporting 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 bar (305), wherein the firing rack (102) is slidably arranged in a shell and is meshed with a tooth structure arranged on a firing handle, the duplex gear set (500) is rotatably arranged in the shell and is meshed with the firing rack (102), the rack (304) is slidably arranged in the shell and is meshed with the duplex gear set (500), and the firing bar (305) is arranged at the front end of the rack (304);
the firing connector is 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 reset spring is connected with the rod firing rod (408), and the other end of the reset spring is directly or indirectly connected with the shell.
3. The automatic knife back jaw assembly linear cutting stapler of claim 2, 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 tilted rod (202) hinged to the middle of the main rod body (201) is arranged on the main rod body (201); a chute (203) is arranged at the lower side of the other end of the main rod body, and a limit rod inserted into the chute (203) is arranged on the closing handle.
4. The automatic knife back jaw assembly linear cutting stapler according to any one of claims 1-3, wherein: the gun body component and the jaw component are connected in a detachable way.
5. The automatic knife back jaw assembly linear cutting stapler of claim 4, wherein: a limit lug is arranged on a casing head (302) of the gun body assembly, and an L-shaped groove matched with the limit lug is arranged on a closed push tube (401) of the jaw assembly.
6. The automatic knife back jaw assembly linear cutting stapler of claim 2, wherein: a limit groove is formed in the front end of the shell of the gun body assembly;
the tail end of the jaw assembly is sleeved with a gripping sleeve (501), the tail of the gripping sleeve (501) is provided with a limit sleeve (502) extending into the gun body assembly, and the tail of the outer sleeve is fixedly connected with the limit sleeve (502);
an elastic bulge (503) matched with the limiting groove is arranged on the periphery of the limiting sleeve (502);
the other end of the return spring is connected with the gripping sleeve (501).
7. The automatic knife back jaw assembly linear cutting stapler of claim 4, wherein: the jaw assembly is provided with at least two specifications, wherein the pipe diameter specification at least comprises 5.5mm and 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598203.4U CN219461264U (en) | 2022-12-29 | 2022-12-29 | Linear cutting anastomat with automatic cutter-back jaw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598203.4U CN219461264U (en) | 2022-12-29 | 2022-12-29 | Linear cutting anastomat with automatic cutter-back jaw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219461264U true CN219461264U (en) | 2023-08-04 |
Family
ID=87461397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223598203.4U Active CN219461264U (en) | 2022-12-29 | 2022-12-29 | Linear cutting anastomat with automatic cutter-back jaw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219461264U (en) |
-
2022
- 2022-12-29 CN CN202223598203.4U patent/CN219461264U/en active Active
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| GR01 | Patent grant |