Linkage device of electric anastomat

Abstract

The electric anastomat linkage device comprises a gun barrel and an anastomat body which are detachably connected, a limiting block is arranged on the outer pipe wall of the rear end of the gun barrel, a stroke guide groove allowing the limiting block to be inserted and rotating in the circumferential direction is formed in the inner wall of a pipe opening in the front end of the anastomat body, a circuit board is further arranged in the anastomat body, a trigger switch is arranged on the circuit board, and the trigger switch is connected with the gun barrel. The linkage mechanism A is used for limiting the trigger switch; and the linkage mechanism B is used for opening and closing the circuit board. The utility model aims to provide the electric anastomat linkage device capable of preventing misoperation. The electric detachable anastomat has the advantages that triggering can be started only after the gun barrel is installed in place through double-mechanism association, safety and reliability are achieved, and the problem of manual misoperation of the electric detachable anastomat is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, concretely is a kind of electric anastomat linkage device. BACKGROUND

[0002] Anastomat is the equipment of traditional hand-made suture replacement in medicine, due to the development of modern science and technology and the improvement of manufacturing technology, the quality of anastomat used in clinic is reliable, and it is convenient to use, and it is suitable to be tight, especially its suture is fast, and it is easy to operate and has few side effects and surgical complications, etc., which also enables the tumor surgery to be lesion resection. Endoscope anastomat (endoscope cutting anastomat and disposable nail box) is one of important instruments of endoscopic surgery, which replaces traditional hand-made suture, uses titanium nail to cut or anastomose tissue, is easy and fast to operate, greatly shortens the operation time, and endoscope anastomat makes the anastomosis of hand operation difficult in narrow operation field and deep position become easy and accurate, firm and reliable, and obviously reduces the incidence of anastomotic fistula. The existing detachable electric endoscope anastomat includes cutting assembly and body, and the existing installation mode is usually that the gun barrel on the cutting assembly is inserted into the cavity tube on the body, then is screwed, the clamping convex of gun barrel is clamped into the clamping groove on the cavity tube to realize locking.

[0003] The following problems exist in the use process:

[0004] 1. In the existing detachable electric endoscope anastomat, when the gun barrel on the cutting assembly is installed, it is difficult for the operator to judge whether it is installed in place;

[0005] 2. In the case that the gun barrel is not installed in place, direct firing can cause damage to the body and can cause harm to the patient. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of electric anastomat linkage device that can prevent misoperation.

[0007] The utility model discloses the purpose is realized by the following technical scheme: a kind of electric anastomat linkage device, including detachably connected gun barrel and anastomat body, the rear end outer tube wall of the gun barrel is equipped with limit block, the front end pipe orifice inner wall of the anastomat body is equipped with the stroke guide groove that limit block inserts and circumferentially rotates, anastomat body is also equipped with circuit board, and circuit board is equipped with trigger switch, and it further includes linkage mechanism A for limiting trigger switch and linkage mechanism B for opening and closing circuit board;

[0008] The linkage mechanism A comprises a linkage rod A, a push-torque and a limiting plate, the linkage rod A is slidably connected to the front side wall of the anastomat body, the front end of the linkage rod A is opposite to the axial linear segment of the stroke guide groove, and the linkage rod A is driven to slide forward and backward by the limiting block of the outer wall of the gun rod, the push-torque is slidably connected to the outer wall of the anastomat body and is fixed to the rear end of the linkage rod A, and the limiting plate is fixedly connected to the rear side of the push-torque and is abutted against the trigger switch when the limiting plate moves backward, the linkage mechanism A further comprises a reset component A for driving the limiting plate to move forward when the gun rod is circumferentially rotated to the position;

[0009] The linkage mechanism B comprises a linkage rod B and a trigger plate, the linkage rod B is slidably connected to the front side wall of the anastomat body, the front end of the linkage rod B is opposite to the rear end of the gun rod, and the linkage rod B is driven to slide forward and backward by the rear end of the gun rod, the trigger plate is connected to the rear part of the linkage rod B, the trigger plate is provided with a metal contact piece, the trigger plate moves backward when the gun rod is axially inserted to the position, and the metal contact piece on the trigger plate is in contact with the metal piece on the circuit board to form a passage.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] The linkage mechanism A for limiting the trigger switch and the linkage mechanism B for opening and closing the circuit board are arranged, the linkage mechanism A can guarantee that the gun rod is circumferentially screwed to the position, otherwise the limiting plate cannot be withdrawn, and the physical limitation on the trigger switch is cancelled, the linkage mechanism B can guarantee that the gun rod is axially inserted to the position, otherwise the metal contact piece on the trigger plate cannot be in contact with the metal piece on the circuit board to form a passage, that is, the gun rod can be started only after being installed to the position through the double-mechanism association, safety and reliability are guaranteed, and the problem of artificial misoperation of the electric detachable anastomat is solved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of an embodiment of the utility model electric anastomat linkage device.

[0013] Figure 2 It is a structural schematic view of the linkage mechanism A and the linkage mechanism B.

[0014] Figure 3 It is a structural schematic view of the stroke guide groove.

[0015] Figure 4 It is a working principle view (state 1) of the electric anastomat linkage device.

[0016] Figure 5 It is a working principle view (state 2) of the electric anastomat linkage device.

[0017] Figure 6 It is a working principle view (state 3) of the electric anastomat linkage device.

[0018] Label explanation: 1 gun rod, 1-1 limit block, 2 anastomat body, 2-1 stroke guide groove, 3 circuit board, 4 trigger switch, 5 linkage rod A, 6 push twist, 7 limit plate, 8 reset spring A, 9 linkage rod B, 10 trigger plate, 11 metal contact, 12 reset spring B, 13 connecting barrel. DETAILED DESCRIPTION

[0019] The content of the utility model is explained in detail below in combination with the drawings and examples of the specification:

[0020] As Figures 1-6 shown is an embodiment schematic diagram of the electric anastomat linkage device provided by the utility model.

[0021] An electric anastomat linkage device, comprising a gun rod 1 and an anastomat body 2 connected in a detachable manner, a limit block 1-1 is arranged on the outer wall of the rear end of the gun rod 1, a stroke guide groove 2-1 (including an axially extending straight line segment and a circumferentially extending circular arc segment) into which the limit block 1-1 is inserted and circumferentially rotated is arranged on the inner wall of the front end tube orifice of the anastomat body 2, and a circuit board 3 is further arranged in the anastomat body 2, a trigger switch 4 is arranged on the circuit board 3, and the electric anastomat linkage device further comprises a linkage mechanism A for limiting the trigger switch 4 and a linkage mechanism B for opening and closing the circuit board 3.

[0022] The linkage mechanism A comprises a linkage rod A 5, a push twist 6 and a limit plate 7, the linkage rod A 5 is slidingly connected to the front side tube wall of the anastomat body 2, the front end of the linkage rod A 5 is opposite to the axial straight line segment of the stroke guide groove 2-1, and the linkage rod A 5 is driven to slide forward and backward by the limit block 1-1 on the outer wall of the gun rod 1, the push twist 6 is slidingly connected to the outer wall of the anastomat body 2 and is fixed to the rear end of the linkage rod A 5, and the limit plate 7 is fixedly connected to the rear side of the push twist 6 and abuts against the trigger switch 4 when the limit plate 7 moves backward, and the linkage mechanism A further comprises a reset assembly A for driving the limit plate 7 to move forward when the gun rod 1 is circumferentially rotated in place.

[0023] The linkage mechanism B comprises a linkage rod B 9 and a trigger plate 10, the linkage rod B 9 is slidingly connected to the front side tube wall of the anastomat body 2, the front end of the linkage rod B 9 is opposite to the rear end of the gun rod 1, and the linkage rod B 9 is driven to slide forward and backward by the rear end of the gun rod 1, the trigger plate 10 is connected to the rear part of the linkage rod B 9, a metal contact 11 is arranged on the trigger plate 10, the trigger plate 10 moves backward when the gun rod 1 is axially inserted in place, and the metal contact 11 on the trigger plate 10 contacts the metal part on the circuit board 3 in a disconnected state to form a passage.

[0024] Two electrically connected metal contacts A are arranged on the metal contact 11, two metal contacts B corresponding to the metal contacts A are arranged on the circuit board 3, and a disconnection is formed between the two metal contacts B.

[0025] The trigger switch 4 is triggered when two conditions are met: 1. The metal contact 11 is in contact with the metal piece on the circuit board 3 to form a path; 2. The reset component A drives the limiting plate 7 to move forward, canceling the physical limiting of the trigger switch 4.

[0026] The reset component A includes a reset spring A8, a long slot extending forward and backward is formed on the linkage rod A5, a protrusion is arranged on the anastomat body 2 and located in the long slot, and the reset spring A8 is arranged between the protrusion and the inner wall of the long slot.

[0027] The linkage mechanism B further includes a reset component B for driving the trigger plate 10 to separate from the circuit board 3 after the gun rod 1 is pulled out.

[0028] The reset component B includes a reset spring B12.

[0029] The rear end of the reset spring B12 is fixed to the side wall of the limiting plate 7, a connecting barrel 13 in sliding connection with the limiting plate 7 is arranged between the linkage rod B9 and the trigger plate 10, and the rear end of the connecting barrel 13 abuts against the front end of the reset spring B12.

[0030] The reset component B includes a reset spring C, and the reset spring C is arranged between the rear end of the linkage rod B9 and the anastomat body 2.

[0031] The working principle of the utility model is as follows:

[0032] 1. The operator pushes the pusher 6 backward, the limiting plate 7 moves backward and abuts against the trigger switch 4, and the linkage rod A5 moves backward and exits the axial straight section of the stroke guide groove 2-1;

[0033] 2. The limiting block 1-1 on the outer pipe wall of the rear end of the gun rod 1 is aligned with the stroke guide groove 2-1 and is inserted to the bottom, and the rear end of the gun rod 1 pushes the linkage rod B9 backward, drives the trigger plate 10 to move backward, and the metal contact 11 on the trigger plate 10 is in contact with the metal piece on the circuit board 3 to form a path, see Figure 5 ;

[0034] 3. Then, the gun rod 1 is screwed, the limiting block 1-1 enters the circular arc section extending in the circumferential direction of the stroke guide groove 2-1, the pusher 6 is loosened, the reset component A drives the limiting plate 7 to move forward, and the physical limiting of the trigger switch 4 is cancelled; the linkage rod B9 remains stationary, and the path state of the circuit board 3 is maintained, see Figure 6 ;

[0035] 4. The trigger switch 4 is operated, and the anastomosis operation is completed;

[0036] 5. After the operation is completed, the operator pushes the pusher 6 backward, reversely screws the gun rod 1, then pulls out the gun rod 1 from the anastomat body 2, the reset component A drives the limiting plate 7 to move forward, and the physical limiting of the trigger switch 4 is cancelled; the reset component B drives the trigger plate 10 to separate from the circuit board 3.

Claims

1. An electric anastomat linkage device, comprising a detachably connected gun barrel (1) and anastomat body (2), the outer wall of the rear end of the gun barrel (1) is provided with a limiting block (1-1), the inner wall of the front end of the anastomat body (2) is provided with a stroke guide groove (2-1) into which the limiting block (1-1) is inserted and circumferentially rotated, and the anastomat body (2) is further provided with a circuit board (3), and the circuit board (3) is provided with a trigger switch (4), characterized in that: The linkage mechanism A is used for limiting the trigger switch (4), and the linkage mechanism B is used for opening and closing the circuit board (3); ​ The linkage mechanism A comprises a linkage rod A (5), a push knob (6) and a limiting plate (7). The linkage rod A (5) is slidably connected to the front side wall of the anastomat body (2), the front end of the linkage rod A (5) is opposite to the axial straight section of the stroke guide groove (2-1), and the linkage rod A (5) is driven to slide forward and backward by the limiting block (1-1) of the outer wall of the gun barrel (1). The push knob (6) is slidably connected to the outer wall of the anastomat body (2) and is fixed to the rear end of the linkage rod A (5). The limiting plate (7) is fixedly connected to the rear side of the push knob (6) and abuts against the trigger switch (4) when the limiting plate (7) moves backward. The linkage mechanism A further comprises a reset assembly A for driving the limiting plate (7) to move forward when the gun barrel (1) is circumferentially rotated to a position. The linkage mechanism B comprises a linkage rod B (9) and a trigger plate (10). The linkage rod B (9) is slidably connected to the front side wall of the anastomat body (2), the front end of the linkage rod B (9) is opposite to the rear end of the gun barrel (1), and the linkage rod B (9) is driven to slide forward and backward by the rear end of the gun barrel (1). The trigger plate (10) is connected to the rear part of the linkage rod B (9). The trigger plate (10) is provided with a metal contact (11). When the gun barrel (1) is axially inserted to a position, the trigger plate (10) moves backward, and the metal contact (11) on the trigger plate (10) contacts the metal part on the circuit board (3) in a disconnected state to form a passage.

2. The motorized anastomosis device linkage of claim 1, wherein: The reset assembly A comprises a reset spring A (8). A long slot extending forward and backward is formed in the linkage rod A (5), and a protrusion is arranged in the long slot on the anastomat body (2). The reset spring A (8) is arranged between the protrusion and the inner wall of the long slot.

3. The motorized anastomosis device linkage of claim 1, wherein: The linkage mechanism B further comprises a reset assembly B for driving the trigger plate (10) to separate from the circuit board (3) when the gun barrel (1) is pulled out.

4. The powered anastomosis device linkage of Claim 3, wherein: The reset assembly B comprises a reset spring B (12). The rear end of the reset spring B (12) is fixed to the side wall of the limiting plate (7). A connecting cylinder (13) slidably connected to the limiting plate (7) is arranged between the linkage rod B (9) and the trigger plate (10). The rear end of the connecting cylinder (13) abuts against the front end of the reset spring B (12).

5. The motorized anastomosis device linkage of claim 3, wherein: The reset assembly B comprises a reset spring C arranged between the rear end of the linkage rod B (9) and the anastomat body (2).

6. The motorized anastomosis device linkage of claim 1, wherein: Two electrically connected metal contacts A are arranged on the metal contact (11). Two metal contacts B corresponding to the metal contacts A are arranged on the circuit board (3). A disconnection is formed between the two metal contacts B.

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