Endoscope purse-string suture electrocoagulation device and anastomosis mechanism thereof

Abstract

The present application is a kind of endoscope purse-string suture electrocoagulation device and its anastomosis mechanism, which is detachably connected with the firing instrument; the anastomosis mechanism comprises an upper clamp part and a lower clamp part; the proximal ends of the upper clamp part and the lower clamp part are hingedly connected with each other; a cutting knife moving forward and backward is arranged between the upper clamp part and the lower clamp part, and the upper clamp part and the lower clamp part are divided into left and right two functional areas, one of which is provided with a purse-string anastomosis structure and realizes anastomosis through the purse-string anastomosis structure, and the other is provided with an electrocoagulation structure and realizes electrocoagulation through the electrocoagulation structure. A kind of endoscope purse-string suture electrocoagulation device and its anastomosis mechanism, which comprises the above-mentioned anastomosis mechanism. The present application has the advantages that: through laparoscopic operation, the closure of the intestinal tract, the cutting of the intestinal tract and the electrocoagulation of the intestinal tract incisal edge are realized at the same time, the doctor does not need to perform subsequent suturing, the operation efficiency is improved, and the operation time is shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a laparoscopic purse-string suture electrocoagulation device and its anastomosis mechanism. BACKGROUND

[0002] In today's surgery, laparoscopic surgery has been widely used in clinical, laparoscopic intestinal surgery usually need to cut off the intestinal tract and then suture, because laparoscopic surgery only in abdominal wall small incision, through the puncture device and long rod instrument cooperation, stretch into the abdominal cavity to carry out digestive tract partial resection, anastomosis and other surgical operation, and under this condition, with disposable laparoscopic linear cutting anastomosis device cutting will have the following problems: 1, because the intestinal tract and the size of the anastomosis jaw is inconsistent, the intestinal tract width is less than the jaw, and the excess anastomosis nail will fall on the intestinal tract after anastomosis. 2, linear cutting anastomosis and then the intestinal tract connection will appear anastomosis nail overlap phenomenon. 3, postoperative bleeding may need to be sutured or sprinkled with hemostatic powder and other follow-up treatment in the wound, because the operation space is limited, if it needs to be sutured later, it is very difficult and the instruments in it will affect the operation effect. There is also a disposable electrocoagulation cutter, which can realize electrocoagulation and hemostasis, but it still cannot solve the problems of long operation time and large trauma to patients.

[0003] The existing electrocoagulation cutter on the market can solve the problem of intestinal incision bleeding, but it cannot achieve closed cutting; although the disposable laparoscopic linear cutting anastomosis device can cut off the intestinal tract and avoid exposure of tumor cells, it is a double closed anastomosis, and the anastomosis nail overlap problem occurs when the two ends of the intestinal tract are anastomosed, which prolongs the operation time. SUMMARY

[0004] The purpose of the present application is to provide a laparoscopic cutting and anastomosis electrocoagulation device and its anastomosis mechanism, which can simplify the operation process and reduce the trauma to the surgical patients. When the intestinal tract is cut off, one side of the intestinal tract is sutured by a purse string, and the other side of the intestinal tract is only hemostatic by electrocoagulation function without anastomosis.

[0005] The purpose of the present application is achieved by a laparoscopic purse-string suture electrocoagulation device anastomosis mechanism, which is connected with the firing instrument 5; it comprises an upper clamp part 1 and a lower clamp part 2.

[0006] The proximal ends of the upper clamp part 1 and the lower clamp part 2 are hingedly connected to each other; a cutting knife moving forward and backward is arranged between the upper clamp part 1 and the lower clamp part 2, and the upper clamp part 1 and the lower clamp part 2 are divided into left and right two functional areas, one of which is provided with a purse-string anastomosis structure 3 and realizes anastomosis through the purse-string anastomosis structure 3; the other functional area is provided with an electrocoagulation structure 4 and realizes electrocoagulation through the electrocoagulation structure 4.

[0007] A laparoscopic purse-string suture electrocoagulation device comprises the above-mentioned anastomosis mechanism.

[0008] The present application has the advantages of:

[0009] 1. The anastomosis mechanism can realize the closure of the intestinal tract, the cutting of the intestinal tract and the electrocoagulation of the cutting edge of the intestinal tract by one laparoscopic operation, so that the doctor does not need to perform subsequent suturing, the operation efficiency is improved and the operation time is shortened.

[0010] 2. The anastomosis mechanism is connected with the firing instrument through the swing hinge, so that the operation is realized at a lower position.

[0011] 3. The anastomosis mechanism is used in the laparoscopic environment, so that the surgical trauma of the patient is small. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Fig. 1 is a structural schematic view of the anastomosis mechanism of the present application;

[0013] Figure 2 Fig. 2 is a structural schematic view of the lower clamp part of the present application;

[0014] Figure 3 Fig. 3 is a structural schematic view of the present application after being matched with the firing instrument;

[0015] Figure 4 Fig. 4 is an effect diagram of the present application after being matched with the purse string suture;

[0016] Figure 5 Fig. 5 is a plan view of the anastomosis mechanism;

[0017] Figure 6 Fig. 6 is a sectional view of A-A in Fig. 5; Figure 5

[0018] Fig. 7 is a schematic view of the enlarged part in Fig. 6; Figure 7 Figure 6 Fig. 8 is a sectional view of B-B in Fig. 5;

[0019] Figure 8 Figure 6 Fig. 9 is an effect diagram of the present application;

[0020] Figure 9 Fig. 10 is an effect diagram of the present application after being anastomosed and electrocoagulated;

[0021] Figure 10 Fig. 11 is an effect diagram of the swing hinge of the present application; Figure 9

[0022] Fig. 12 is an effect diagram of the present application with the scale line. Figure 11

[0023] Figure 12

[0024] ​​​​Labeling Explanation: 1 Upper clamp, 2 Lower clamp, 3 Purse-string fitting structure, 31 Purse-string nail outlet hole, 32 Purse-string nail fitting nail, 33 Purse-string nail push block, 34 Purse-string nail push block, 35 Purse-string wire, 4 Electrocoagulation structure, 41 Lower electrocoagulation plate, 42 Upper electrocoagulation plate, 43 Wire, 5 Firing device, 6 Swinging hinge, 7 Scale line, 8 Split-type cable connector. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings:

[0026] like Figures 1-12 As shown: A laparoscopic purse-string suture electrocoagulation device anastomosis mechanism, which is detachably connected to the firing instrument 5; it includes an upper clamp 1 and a lower clamp 2;

[0027] The upper clamp 1 and the lower clamp 2 are hinged to each other at their proximal ends; a cutting blade that moves back and forth is provided between the upper clamp 1 and the lower clamp 2, dividing the upper clamp 1 and the lower clamp 2 into two functional areas, left and right. One functional area is provided with a purse-string fitting structure 3, and fitting is achieved through purse-string fitting; the other functional area is provided with an electrocoagulation structure 4, and electrocoagulation is achieved through the electrocoagulation structure 4.

[0028] like Figures 5-8 As shown: The purse-string anastomosis structure 3 includes a lower purse-string anastomosis member located in the lower clamp 2 and an upper purse-string anastomosis member located in the upper clamp 1;

[0029] The upper purse-shaped fitting component includes

[0030] Several purse-string nail holes 31 are distributed from far to near on the mating surface of the upper clamp 1;

[0031] A purse-string staple 32 is disposed within the purse-string staple outlet hole 31;

[0032] The purse-string rivet pusher block 33 is positioned above the purse-string rivet 32;

[0033] The purse pin pusher block 34 is initially positioned near the end of the upper clamp 1, and its contact surface with the purse pin pusher block 33 is an inclined surface. By activating it, the purse pin pusher block 34 moves to the far end of the upper clamp 1, while the purse pin pusher block 34 pushes the purse pin pusher block 33 downward.

[0034] The structure of the lower purse-string fitting component is symmetrical to that of the upper purse-string fitting component, and the purse-string nail outlet hole 31 of the lower purse-string fitting component is staggered with that of the upper purse-string fitting component. The purse-string fitting nail 32 of the lower purse-string fitting component moves to the far end of the lower clamp via the purse-string nail pushing block 34, which is initially located at the proximal end of the lower clamp, thus pushing the purse-string nail pushing block 33 to move upward.

[0035] It should be noted that the purse-string suture 35 is generally pre-installed at the purse-string staple exit structure, allowing it to be sutured into the tissue during the anastomosis operation. The suturing principle of the purse-string suture component is basically the same as that of existing purse-string sutures. However, the purse-string anastomosis structure differs from existing purse-string suture structures. Existing purse-string suture structures use a method of simultaneous exit of staples (purse-string staples) from both the upper and lower rows. The purse-string anastomosis structure described in this paper uses the staple exit method of anastomosis staples (progressive exit method), that is, the purse-string staple pusher 34 is linked with the cutting blade (push plate) and moves synchronously with the cutting blade. The upper end of the purse-string staple exit hole in the upper purse-string anastomosis component is provided with a sliding track extending forward and backward. The purse-string staple pusher 34 moves from the proximal end to the distal end within the sliding track.

[0036] The electrocoagulation structure 4 includes a lower electrocoagulation plate 41 located on the mating surface of the lower clamp 2 and an upper electrocoagulation plate 42 located on the mating surface of the upper clamp 1. The proximal ends of the lower electrocoagulation plate 41 and the upper electrocoagulation plate 42 are provided with wires 43.

[0037] The electrocoagulation structure 4 works by connecting the lower electrocoagulation plate 41 and the upper electrocoagulation plate 42 to the positive and negative terminals of the power supply, respectively. When the upper clamp 1 and the lower clamp 2 are closed, a current loop is formed, thus producing the electrocoagulation effect. It should be noted that the other end of the wire is connected to the firing device 5; that is, the wire can be connected to the main power supply via a separate cable connector located within the firing device 5. Alternatively, a separate cable connector can be directly provided for connection to the main power supply.

[0038] A swing hinge 6 is provided at the proximal end of the hinge joint between the upper clamp 1 and the lower clamp 2. The swing hinge 6 is hinged to the distal end of the firing device 5 to realize the left and right swing of the upper clamp 1 and the lower clamp 2.

[0039] like Figure 11 As shown: The outer wall of the upper clamp 1 and / or the lower clamp 2 is also provided with scale lines 7 extending in the proximal direction, which facilitates the measurement of the closure size during the operation.

[0040] A laparoscopic purse-string suture electrocoagulation device and its anastomosis mechanism, comprising the aforementioned anastomosis mechanism.

[0041] In practical use, the firing device 5 is operated to close the upper clamp 1 and the lower clamp 2, triggering the cutting and anastomosis. Simultaneously, the cutting blade performs purse-string anastomosis and electrocoagulation; the purse-string suture 25 on one side of the intestine is fixed to the outer surface of the intestinal wall on the other side by the purse-string staple 32; electrocoagulation hemostasis is achieved on the other side of the intestine through the electrocoagulation structure.

[0042] Although the present application has been described in connection with the preferred embodiments of the application, it will be understood that the application is capable of further modifications. These and other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. Therefore, it is intended that the application not be limited to the preferred embodiments, but will include all such embodiments as can be made within the scope of the present application along with equivalents thereof.

Claims

1. A laparoscopic purse string suture electrocoagulation device and its anastomosis mechanism, which is detachably connected with a firing instrument (5); characterized in that: It comprises an upper jaw (1) and a lower jaw (2); The proximal ends of the upper jaw (1) and the lower jaw (2) are hingedly connected to each other; a cutting knife is arranged to move forward and backward between the upper jaw (1) and the lower jaw (2), and the upper jaw (1) and the lower jaw (2) are divided into left and right functional areas; one of the functional areas is provided with a purse-string anastomosis structure (3) to realize anastomosis through the purse-string anastomosis structure (3); the other functional area is provided with an electrocoagulation structure (4) to realize electrocoagulation through the electrocoagulation structure (4).

2. The endoscopic purse-string electrocoagulation device and its anastomosis mechanism according to claim 1, characterized in that: The purse-string anastomosis structure (3) comprises a lower purse-string anastomosis component on the lower jaw (2) and an upper purse-string anastomosis component in the upper jaw (1); The upper purse-string anastomosis component comprises A plurality of purse-string nail ejection holes (31) are distributed from the distal end to the proximal end on the anastomosis surface of the upper jaw (1); A purse-string nail anastomosis nail (32) is arranged in the purse-string nail ejection hole (31); A purse-string nail pushing block (33) is arranged above the purse-string nail anastomosis nail (32); A purse-string nail pushing block (34) is initially arranged at the proximal end of the upper jaw (1), and the contact surface of the purse-string nail pushing block (34) and the purse-string nail pushing block (33) is an inclined surface; the purse-string nail pushing block (34) is moved to the distal end of the upper jaw (1) by excitation, and at the same time, the purse-string nail pushing block (34) pushes the purse-string nail pushing block (33) to move downward. The structure of the lower purse-string anastomosis component is symmetrical to the structure of the upper purse-string anastomosis component, and the purse-string nail ejection holes (31) of the lower purse-string anastomosis component are arranged in a staggered manner with the purse-string nail ejection holes (31) of the upper purse-string anastomosis component; the purse-string nail anastomosis nail (32) of the lower purse-string anastomosis component is moved to the distal end of the lower jaw (2) through the purse-string nail pushing block (34) initially arranged at the proximal end of the lower jaw (2), and pushes the purse-string nail pushing block (33) to move upward.

3. The purse-string suture and electrocoagulation device and the anastomosis mechanism thereof according to claim 1, characterized in that: The electrocoagulation structure (4) comprises a lower electrocoagulation sheet (41) on the anastomosis surface of the lower jaw (2) and an upper electrocoagulation sheet (42) on the anastomosis surface of the upper jaw (1), and the proximal ends of the lower electrocoagulation sheet (41) and the upper electrocoagulation sheet (42) are provided with a wire (43).

4. The endoscopic purse-string electrocoagulation device and its anastomosis mechanism according to claim 3, characterized in that: The other end of the wire is connected to a firing instrument (5).

5. The electric coagulation device for suture pocket of a cavity scope and its anastomosis mechanism according to any one of claims 1-4, characterized in that: The proximal end of the hingedly connected upper jaw (1) and lower jaw (2) is further provided with a swing hinge (6), which is hingedly connected to the distal end of the firing instrument (5) to realize left and right swinging of the upper jaw (1) and the lower jaw (2).

6. The endoscopic purse-string electrocoagulation device and its anastomosis mechanism according to claim 1, characterized in that: The outer side wall surface of the upper jaw (1) and / or the lower jaw (2) is further provided with a scale line (7) extending in the proximal-distal direction.

7. A laparoscopic purse string suturing and coagulation device, characterized in that It comprises the anastomosis mechanism according to any one of claims 1-6.

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