Disposable endoscope wound stitching instrument

Abstract

The invention belongs to the technical field of endoscopic surgical instruments, and particularly relates to a disposable endoscopic wound stitching instrument which comprises a closed instrument casing and a tissue tractor, a gastroscope is fixedly mounted in the closed instrument casing in an embedded manner, and a first instrument channel and a second instrument channel are integrally formed in the edge of the closed instrument casing. A rod body part of the tissue tractor movably penetrates through the second instrument channel, the tissue tractor is used in cooperation with the closed instrument sleeve shell and used for dragging the inner wall of tissue to be close to a lens of the gastroscope, the tissue tractor is mainly composed of an inner needle rod, an inner pipe rod and an outer pipe rod, and a spiral guide groove is formed in the inner wall of one end of the handle. The device can be pulled by clamping the inner wall of the tissue, the situation that the inner wall of the tissue is accidentally disengaged during pulling can be reduced, the structure is easy to operate, the damage range is small, it can be guaranteed that the spiral chuck penetrates into the inner wall of the tissue in a rotating mode, and the spiral chuck can conveniently pierce the tissue and enter the tissue.

Description

Technical Field

[0001] The invention belongs to the technical field of endoscopic surgical instruments, and in particular relates to a disposable endoscopic wound suturing device. Background Art

[0002] An endoscopic wound stapler is a medical device used for tissue resection, transection and anastomosis during endoscopic surgery. It is suitable for a variety of surgeries, including endoscopic surgeries in abdominal surgery, gynecology, pediatrics and thoracic surgery. The main function of this stapler is to complete tissue resection, transection and anastomosis through a one-time operation, reducing operation time and trauma, and helping patients recover quickly.

[0003] Problems with existing technologies: Existing endoscopic wound staplers, such as the Apollo OverStitch SX endoscopic stapler, mostly use a spring-shaped spiral chuck to pull the tissue close to the lens when suturing tissue wounds in the human body. In the process of pulling the tissue with this structure, the spiral chuck is very likely to accidentally detach from the tissue during pulling because the pulling force surface is too small and the tissue near the wound has greater or lesser damage, which seriously affects the progress of the operation. In addition, the spiral chuck that accidentally detaches from the tissue is likely to tear off a part of the tissue, thereby expanding the area of ​​tissue damage. Summary of the invention

[0004] The purpose of the present invention is to provide a disposable endoscopic wound suturing device, which can pull by clamping the inner wall of the tissue, thereby reducing the situation where the inner wall of the tissue is accidentally detached during pulling. The structure is simple to operate and the damage range is small. It can also ensure that the spiral chuck penetrates deep into the inner wall of the tissue in a rotating manner, making it easier for the spiral chuck to pierce the tissue and enter.

[0005] The technical solution adopted by the present invention is as follows: A disposable endoscopic wound suture device, comprising a closing instrument shell and a tissue retractor, wherein a gastroscope is embedded and fixedly installed inside the closing instrument shell, an instrument channel 1 and an instrument channel 2 are integrally formed at the edge of the closing instrument shell, a shaft portion of the tissue retractor movably passes through the instrument channel 2, and the tissue retractor is used in conjunction with the closing instrument shell to pull the inner wall of the tissue close to the lens of the gastroscope; By rotating the screw tube, the tissue clamp 1 is first vertically erected, and then the tissue clamp 2 is vertically erected, and finally the tissue clamp 1 is close to the tissue clamp 2 and clamps the inner wall of the tissue; By continuously pressing the tube, the spiral chuck is rotated to penetrate into the inner wall of the tissue.

[0006] A camera and an LED light are embedded in the lens of the gastroscope; The closed instrument shell is integrally provided with a groove body at the lens end, and a connecting arm is rotatably installed inside the groove body, a needle body is fixedly installed at the end of the connecting arm away from the transfer point, and the needle body is controlled to rotate by an instrument handle at the rear end of the closed instrument shell, and an anchor holder catheter is slidingly assembled inside the instrument channel one, an anchor holder is provided at the rear end of the anchor holder catheter, an anchor head is detachably clamped at the end of the anchor holder catheter close to the lens, and the anchor head is detachably clamped to the end of the needle body.

[0007] The tissue tractor is mainly composed of an inner needle rod, an inner tube rod and an outer tube rod. The inner tube rod is rotatably sleeved on the outer surface of the inner needle rod, and the outer tube rod is movably sleeved on the outer surface of the inner tube rod. A spiral chuck is fixedly provided on one end of the inner needle rod extending out of the inner tube rod and close to the lens, and a handle is integrally provided on one end of the inner tube rod extending out of the outer tube rod and away from the lens.

[0008] The outer tube rod is integrally provided with a tube end at one end close to the lens, the inner tube rod is movably sleeved with a live tube at one end close to the tube end, and a spring is connected between the tube end and the live tube, the outer wall of the live tube is symmetrically rotatably assembled with a tissue clamp, the outer walls on both sides of one end of the tube end are integrally provided with a support body for supporting the tissue clamp, the side walls of the support body are fixedly connected with a connecting rod, the end of the connecting rod is rotatably connected with a rotating arm, and the end of the rotating arm is connected to the outer wall of the tissue clamp.

[0009] A movable sleeve is provided with a second live tube on one end of the inner tube rod near the spiral chuck, and a second spring is connected between the second live tube and the first live tube. The elastic coefficient of the second spring is greater than the elastic coefficient of the first spring. Push blocks are integrally provided on both sides of the second live tube near one end of the spiral chuck.

[0010] The inner tube rod is integrally provided with a block body on both sides near the end of the spiral chuck, and the side walls of the block body facing away from the spiral chuck are rotatably connected to a rotation support plate, the end of the rotation support plate is rotatably connected to the second tissue clamp, the push block abuts against the transition end of the rotation support plate and the second tissue clamp, the end of the second tissue clamp close to the transition point is integrally provided with an extension body, and the outer wall of the extension body is fixedly provided with a guide rod, the two sides of the block body are fixedly provided with a guide groove plate, and the guide rod slides through the inclined groove on the corresponding side of the guide groove plate.

[0011] A thin plate is integrally provided at one end of the second tissue clip near the transition point, and side grooves for resetting the thin plate are provided on both sides of the edge of the blocking body. The thickness of the extension body is greater than that of the thin plate, and the thickness of the thin plate is equal to the width of the side groove.

[0012] When the live tube 1 penetrates into the limit position inside the tube end, the tissue clamp 1 is perpendicular to the inner tube rod; when the live tube 2 moves toward the spiral clamp to the limit position, the tissue clamp 2 is attached to the side wall of the blocking body and is perpendicular to the inner tube rod at the same time.

[0013] A threaded section is provided on the outer surface of the inner tube rod near one end of the handle, and a screw tube is rotatably connected to one end of the outer tube rod near the threaded section, and the screw tube is screwed to the outer surface of the threaded section.

[0014] The outer wall of the inner needle rod located in the inner part of the handle is integrally provided with a straight strip body, the internal telescopic assembly of one end of the handle is provided with a transfer tube, the inner wall of one end of the handle is provided with a spiral guide groove, the outer wall of one end of the transfer tube is integrally provided with a ball protrusion, and the ball protrusion and the spiral guide groove form a threaded connection, the internal movably assembled with a core tube at one end of the transfer tube, and both ends of the core tube are located inside the transfer tube and are sleeved with one-way bearings, the inner wall of the core tube is provided with a straight through groove for forming a sliding assembly relationship with the straight strip body, the other end of the transfer tube is rotatably assembled with a press tube, and a protective film is connected between the inner wall of the press tube and the outer wall of the handle, and a spring three is sleeved on the surface of the press tube shaft body and located inside the protective film.

[0015] The technical effects achieved by the present invention are: The present invention realizes vertical erection of tissue clamp one by rotating the spiral tube, and then vertical erection of tissue clamp two, and finally makes tissue clamp one approach to tissue clamp two and clamps the inner wall of tissue, at which time the work of pulling the inner wall of tissue can be carried out. Compared with the traditional method of only using the spiral clamp to pull the inner wall of tissue, this structure can reduce the situation that the inner wall of tissue is accidentally separated during pulling, and avoids the situation that the spiral clamp is accidentally damaged when it is separated from the inner wall of tissue, thereby ensuring the normal progress of suturing operation, and the clamping and moving process is simple to operate and the process is simple. In addition, the direction of rotation and erection of tissue clamp two located on the inner side of tissue makes tissue clamp two have a needle-penetration effect, and can penetrate as deep as possible into the inner side of tissue under the premise of low degree of tissue damage.

[0016] According to the present invention, when the handle is held and moved deeply, the pressing tube is continuously pressed so that the spiral chuck can be rotated to penetrate deeply into the inner wall of the tissue, so that the spiral chuck can penetrate the tissue and enter easily. This operation is simple and convenient and can be completed with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front structural diagram of the end portion of the wound suture device provided by an embodiment of the present invention; Figure 2 is a rear structural diagram of the end portion of the wound suture device provided by an embodiment of the present invention; Figure 3 is a structural diagram of a tissue retractor provided by an embodiment of the present invention; Figure 4 Schematic diagram of the front and back view of the end of the tissue retractor provided by the embodiment of the present invention; Figure 5is a planar cross-sectional view of a tissue retractor tip provided by an embodiment of the present invention; Figure 6 is a partial cross-sectional view of the end of the tissue retractor provided by an embodiment of the present invention; Figure 7 yes Figure 6 The local enlarged structure diagram at A in the middle; Figure 8 yes Figure 6 The local enlarged structure diagram at B in the middle; Fig. 9 is a schematic diagram of a modified end of a tissue retractor provided by an embodiment of the present invention; Fig.10 yes Fig. 9 The local enlarged structure diagram at C in the middle; Fig.11 is a cross-sectional structural diagram of a handle provided by an embodiment of the present invention; Fig.12 yes Fig.11 A local enlarged structural diagram of point D in the middle.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Gastroscope; 101. Camera; 102. LED light; 2. Closed instrument housing; 201. Slot body; 202. Instrument channel 1; 203. Instrument channel 2; 204. Connecting arm; 205. Needle body; 206. Anchor head; 3. Tissue retractor; 301. Inner needle rod; 302. Inner tube rod; 303. Outer tube rod; 304. Screw chuck; 305. Tube end; 306. Support body; 307. Active tube 1; 308. Tissue clamp 1; 309. Spring 1; 310. Connecting rod; 311. Rotating arm ; 312, movable tube 2; 313, spring 2; 314, push block; 315, blocking body; 3151, side groove; 316, rotating support plate; 317, tissue clamp 2; 3171, extension body; 3172, guide rod; 3173, thin plate; 318, guide groove plate; 319, handle; 320, screw tube; 321, straight strip; 322, press tube; 323, protective film; 324, spring 3; 325, transfer tube; 326, core tube; 327, one-way bearing; 328, spiral guide groove; 329, ball convex. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0020] like Figure 1-Figure 12As shown, a disposable endoscopic wound suture device comprises a closing instrument shell 2 and a tissue retractor 3. A gastroscope 1 is embedded and fixedly installed inside the closing instrument shell 2. An instrument channel 1 202 and an instrument channel 2 203 are integrally formed at the edge of the closing instrument shell 2. The shaft of the tissue retractor 3 movably penetrates the instrument channel 2 203. The tissue retractor 3 is used in conjunction with the closing instrument shell 2 and is used to pull the inner wall of the tissue close to the lens of the gastroscope 1.

[0021] See attached Figure 1 A camera 101 and an LED light 102 are embedded in the lens of the gastroscope 1 .

[0022] See attached Figure 1-Figure 2 The closing instrument shell 2 is integrally provided with a slot body 201 at the lens end, and a connecting arm 204 is rotatably installed inside the slot body 201, and a needle body 205 is fixedly installed at the end of the connecting arm 204 away from the transfer point, and the needle body 205 is controlled to rotate by the instrument handle at the tail end of the closing instrument shell 2, and an anchor holder catheter is slidingly assembled inside the instrument channel 1 202, and an anchor holder is provided at the tail end of the anchor holder catheter, and an anchor head 206 is detachably clamped at the end of the anchor holder catheter close to the lens, and the anchor head 206 is detachably clamped to the end of the needle body 205.

[0023] According to the above structure, the needle body 205 is first retracted through the instrument handle, and the instrument is prepared to be placed in the human body. The lens end of the instrument is close to the tissue to be sutured in the human body, and then the anchor holder is pushed in. The anchor holder catheter carries the anchor head 206 close to the needle head of the needle body 205. The anchor head 206 will eventually get stuck in the needle body 205. Press the button at the tail end of the anchor holder and pull it back about 1 cm to separate the anchor holder catheter from the anchor head 206. Then, open the instrument handle and put the tissue retractor 3 in through the instrument channel 203. The inner wall of the tissue is pulled toward the vicinity of the camera 101 through the tissue retractor 3, and the instrument is closed. The handle allows the anchor head 206 and the suture thread to pass through the tissue together, and the anchor holder catheter is pushed forward again until the internal locking mechanism engages and locks the anchor head 206. The anchor holder catheter is then pulled back to separate the anchor head 206 from the needle body 205. The tissue is then loosened through the tissue retractor 3, and finally the instrument handle is opened. At this time, the suture thread will pass through the inner wall of the tissue. Repeat the above operations to complete the suturing work, and finally perform the knotting operation. The camera 101 is used for follow-up shooting, and the LED light 102 is used for lighting. The above process and structure are all existing technologies and will not be elaborated here.

[0024] Embodiment 1: See attached Figure 3The tissue tractor 3 is mainly composed of an inner needle rod 301, an inner tube rod 302 and an outer tube rod 303. The inner tube rod 302 is rotatably sleeved on the outer surface of the inner needle rod 301, and the outer tube rod 303 is movably sleeved on the outer surface of the inner tube rod 302. The inner needle rod 301 extends out of the inner tube rod 302 and is fixedly provided with a spiral chuck 304 at one end close to the lens, and the inner tube rod 302 extends out of the outer tube rod 303 and is away from the lens. The end is integrally provided with a handle 319.

[0025] See attached Figure 4-Figure 7 The outer tube rod 303 is integrally provided with a tube end 305 at one end close to the lens, and the inner tube rod 302 is movably sleeved with a live tube 307 at one end close to the tube end 305, and a spring 309 is connected between the tube end 305 and the live tube 307, and the outer wall of the live tube 307 is symmetrically rotated and assembled with a tissue clamp 308, and the outer walls on both sides of one end of the tube end 305 are integrally provided with a support body 306 for resisting the tissue clamp 308, and the side walls of the support body 306 are fixedly connected with a connecting rod 310, and the end of the connecting rod 310 is rotatably connected with a rotating arm 311, and the end of the rotating arm 311 is connected to the outer wall of the tissue clamp 308.

[0026] See attached Figure 4-Figure 8 A movable sleeve 312 is provided on one end of the inner tube rod 302 near the spiral chuck 304, and a spring 313 is connected between the movable tube 312 and the movable tube 1 307. The elastic coefficient of the spring 313 is greater than the elastic coefficient of the spring 1 309. Push blocks 314 are integrally provided on both sides of the movable tube 312 near one end of the spiral chuck 304.

[0027] See attached Figure 8-Figure 9 , both sides of the inner tube rod 302 near the end of the spiral chuck 304 are integrally provided with a block body 315, and the side walls of the block body 315 facing away from the spiral chuck 304 are rotatably connected with a rotating support plate 316, and the end of the rotating support plate 316 is rotatably connected with a tissue clamp 2 317, and the push block 314 is against the transition end of the rotating support plate 316 and the tissue clamp 2 317, and the end of the tissue clamp 2 317 near the transition point is integrally provided with an extension body 3171, and the outer wall of the extension body 3171 is fixedly provided with a guide rod 3172, and both sides of the block body 315 are fixedly provided with a guide groove plate 318, and the guide rod 3172 slides through the oblique groove on the corresponding side of the guide groove plate 318.

[0028] See attached Figure 8-Figure 9 A thin plate 3173 is integrally provided at one end of the tissue clip 317 near the transition point, and side grooves 3151 for the thin plate 3173 to be reset and retracted are provided on both sides of the edge of the blocking body 315. The thickness of the extension body 3171 is greater than the thickness of the thin plate 3173, and the thickness of the thin plate 3173 is equal to the width of the side groove 3151.

[0029] See attached Figure 4 and Fig. 9 When the live tube 307 penetrates into the limit position inside the tube end 305, the tissue clamp 308 is perpendicular to the inner tube rod 302; when the live tube 312 moves toward the spiral clamp 304 to the limit position, the tissue clamp 317 is attached to the side wall of the blocking body 315 and is perpendicular to the inner tube rod 302 at the same time.

[0030] See attached Fig.11 A threaded section is provided on the outer surface of the inner tube rod 302 near the handle 319, and a screw tube 320 is rotatably connected to the end of the outer tube rod 303 near the threaded section, and the screw tube 320 is screwed to the outer surface of the threaded section.

[0031] According to the above structure, when the inner wall of the tissue is placed between the tissue clamp 1 308 and the tissue clamp 2 317, the handle 319 is stabilized and the screw tube 320 begins to rotate. Since the screw tube 320 is threadedly connected with the threaded section on the surface of the inner tube rod 302, the screw tube 320 moves together with the outer tube rod 303. Furthermore, since the elastic coefficient of the second spring 313 is greater than that of the first spring 309, the distance between the tube end 305 and the first active tube 307 gradually decreases during the movement of the outer tube rod 303, and the first spring 309 is compressed at the same time. When the first active tube 307 penetrates into the inner limit position of the tube end 305, the first tissue clamp 308 will eventually rotate to an angle perpendicular to the inner tube rod 302 through the traction of the connecting rod 310 and the rotating arm 311. Furthermore, as the outer tube rod 303 continues to move, the second spring 313 is compressed, and the second live tube 312 will push the rotating support plate 316 and the second tissue clamp 317 to rotate through the push block 314. When the second live tube 312 moves to the limit position, the rotating support plate 316 will fit the side wall of the blocking body 315, and because the guide rod 3172 passes through the inclined groove of the guide groove plate 318, according to the direction of the inclined groove, the second tissue clamp 317 will also fit the side wall of the blocking body 315 and finally rotate to an angle perpendicular to the inner tube rod 302, and at this time, the first tissue clamp 308 and the second tissue clamp 317 will be in a parallel state; Furthermore, as the outer tube rod 303 continues to move, the distance between the live tube 1 307 and the live tube 2 312 gradually decreases, and the erected tissue clamp 1 308 and the tissue clamp 2 317 will clamp the inner wall of the tissue. Finally, the rotation of the screw tube 320 is stopped, and the handle 319 is controlled to be pulled backward, and the inner wall of the tissue can be pulled closer to the camera 101, which is convenient for subsequent suturing work. When it is necessary to withdraw the tissue retractor 3, only the screw tube 320 needs to be rotated, and the tissue clamp 1 308 and the tissue clamp 2 317 will eventually rotate back to their original positions, and the tissue retractor 3 can be withdrawn at this time. In the above process, the spiral tube 320 is rotated to make the tissue clamp 1 308 stand vertically, and then the tissue clamp 2 317 stand vertically, and finally the tissue clamp 1 308 is close to the tissue clamp 2 317 and has the effect of clamping the inner wall of the tissue. At this time, the work of pulling the inner wall of the tissue can be carried out. Compared with the traditional method of only using the spiral clamp 304 to pull the inner wall of the tissue, this structure can reduce the situation that the inner wall of the tissue is accidentally separated during pulling, and at the same time avoid the situation that the spiral clamp 304 is accidentally damaged when it is separated from the inner wall of the tissue, thereby ensuring the normal progress of the suturing operation. The clamping and moving process is simple to operate and the process is simple. In addition, the tissue clamp 2 317 located on the inner side of the tissue has a needle-penetration effect in the direction of its rotation and standing, which can penetrate as deep as possible into the inner side of the tissue under the premise of low degree of tissue damage.

[0032] The working principle of the present invention is as follows: in the process of pulling the inner wall of the tissue toward the camera 101 through the tissue retractor 3, the user holds the handle 319 and inserts the rod into the instrument channel 203 until the spiral chuck 304 passes through the inner wall of the tissue. Figure 5 As shown, when the inner wall of the tissue is placed between the first tissue clamp 308 and the second tissue clamp 317, the handle 319 is stabilized and the screw tube 320 begins to rotate. Since the screw tube 320 is threadedly connected with the threaded section on the surface of the inner tube rod 302, the screw tube 320 moves together with the outer tube rod 303; Since the elastic coefficient of the second spring 313 is greater than the elastic coefficient of the first spring 309, the distance between the tube end 305 and the first active tube 307 gradually decreases during the movement of the outer tube rod 303, and the first spring 309 is compressed at the same time. When the first active tube 307 penetrates into the inner limit position of the tube end 305, the tissue clamp 1 308 will eventually rotate to an angle perpendicular to the inner tube rod 302 through the traction of the connecting rod 310 and the rotating arm 311; as the outer tube rod 303 continues to move, the second spring 313 is compressed, and the second active tube 312 will push the rotating support plate 316 and the second tissue clamp 317 to rotate through the pushing block 314. When the second active tube 312 moves to the limit position, the rotating support plate 316 will stick to the inner tube rod 302. The side wall of the blocking body 315 is engaged, and since the guide rod 3172 passes through the oblique groove of the guide groove plate 318, according to the direction of the oblique groove, the tissue clamp 2 317 will also fit with the side wall of the blocking body 315 and finally rotate to an angle perpendicular to the inner tube rod 302. At this time, the tissue clamp 1 308 and the tissue clamp 2 317 will be in a parallel state; as the outer tube rod 303 continues to move, the distance between the live tube 1 307 and the live tube 2 312 gradually becomes smaller. At this time, the erected tissue clamp 1 308 and the tissue clamp 2 317 will have the effect of clamping the inner wall of the tissue. Finally, stop rotating the screw tube 320 and control the handle 319 to pull back. At this time, the inner wall of the tissue can be pulled close to the camera 101, which is convenient for subsequent suturing work.

[0033] Embodiment 2: See attached Figure 11-Figure 12 The outer wall of the inner needle rod 301 located inside the handle 319 is integrally provided with a straight strip body 321, and a transfer tube 325 is telescopically assembled inside one end of the handle 319. A spiral guide groove 328 is provided on the inner wall of one end of the handle 319, and a ball protrusion 329 is integrally provided on the outer wall of one end of the transfer tube 325, and the ball protrusion 329 and the spiral guide groove 328 form a threaded connection. A core tube 326 is movably assembled inside one end of the transfer tube 325, and both ends of the core tube 326 are sleeved with one-way bearings 327 located inside the transfer tube 325. A straight through groove for forming a sliding assembly relationship with the straight strip body 321 is provided on the inner wall of the core tube 326. A press tube 322 is rotatably assembled at the other end of the transfer tube 325, and a protective film 323 is connected between the inner wall of the press tube 322 and the outer wall of the handle 319, and a spring three 324 is sleeved on the surface of the axial body of the press tube 322 and located inside the protective film 323.

[0034] According to the above structure, in the process of controlling the spiral chuck 304 to pierce the inner wall of the tissue, the user controls the shaft to penetrate deeper while continuously pressing the pressing tube 322 with the thumb. After the pressing tube 322 is pressed and moved, the spring 324 is compressed, and the transfer tube 325 penetrates into the handle 319 at the same time. Since the ball protrusion 329 and the spiral guide groove 328 form a threaded connection, the transfer tube 325 rotates while penetrating and moving deeper. According to the characteristics of the one-way bearing 327, the core tube 326 rotates accordingly at this time. 6 and the rear end of the inner needle rod 301 will move relative to each other, but the rotating core tube 326 will drive the inner needle rod 301 to rotate together, and the inner needle rod 301 will eventually drive the spiral chuck 304 to rotate together, so as to facilitate the spiral chuck 304 to penetrate the inner wall of the tissue. In the above process, when holding the handle 319 and moving deeply, by continuously pressing the pressing tube 322, the spiral chuck 304 can be rotated to penetrate the inner wall of the tissue, so as to facilitate the spiral chuck 304 to penetrate the tissue and enter. This operation is simple and convenient, and can be completed with one hand.

[0035] The working principle of the present invention is as follows: in the process of controlling the spiral chuck 304 to pierce the inner wall of the tissue, the user controls the shaft to penetrate deeply while continuously pressing the pressing tube 322 with the thumb. After the pressing tube 322 is pressed and moved, the spring 324 is compressed, and the transfer tube 325 penetrates deeply into the handle 319 at the same time. Since the ball protrusion 329 and the spiral guide groove 328 form a threaded connection, the transfer tube 325 rotates while penetrating deeply. According to the characteristics of the one-way bearing 327, the core tube 326 at this time The core tube 326 will follow the rotation, and relative movement will occur between the core tube 326 and the tail end of the inner needle rod 301, but the rotating core tube 326 will drive the inner needle rod 301 to rotate together, and the inner needle rod 301 will eventually drive the spiral chuck 304 to rotate together, which is convenient for the spiral chuck 304 to penetrate the inner wall of the tissue. When the spring three 324 drives the pressing tube 322 to reset, according to the characteristics of the one-way bearing 327, the core tube 326 will also reset at this time but will not be driven to rotate, thereby ensuring that the spiral chuck 304 only rotates in one direction.

[0036] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A disposable endoscopic wound suturing device, comprising a closing device housing (2) and a tissue retractor (3), wherein a gastroscope (1) is embedded and fixedly mounted inside the closing device housing (2), and an edge of the closing device housing (2) is integrally provided with a first instrument channel (202) and a second instrument channel (203), characterized in that: The shaft portion of the tissue retractor (3) movably passes through the second instrument channel (203), and the tissue retractor (3) is used in conjunction with the closed instrument housing (2) to pull the inner wall of the tissue close to the lens of the gastroscope (1); By rotating the screw tube (320), the tissue clamp 1 (308) is first vertically erected, and then the tissue clamp 2 (317) is vertically erected, and finally the tissue clamp 1 (308) is moved closer to the tissue clamp 2 (317) and clamps the inner wall of the tissue; By continuously pressing the pressing tube (322), the spiral chuck (304) is rotated to penetrate into the inner wall of the tissue.

2. A disposable endoscopic wound stapler according to claim 1, characterized in that: A camera (101) and an LED light (102) are embedded in the lens of the gastroscope (1); The closed instrument housing (2) is integrally provided with a groove body (201) at the lens end, and a connecting arm (204) is rotatably mounted inside the groove body (201), and a needle body (205) is fixedly mounted at the end of the connecting arm (204) away from the transfer point, and the needle body (205) is controlled to rotate by an instrument handle at the rear end of the closed instrument housing (2), and an anchor holder catheter is slidably assembled inside the instrument channel 1 (202), and an anchor holder is arranged at the rear end of the anchor holder catheter, and an anchor head (206) is detachably clamped at the end of the anchor holder catheter close to the lens, and the anchor head (206) is detachably clamped to the rear end of the needle body (205).

3. The disposable endoscopic wound stapler according to claim 1, characterized in that: The tissue tractor (3) is mainly composed of an inner needle rod (301), an inner tube rod (302) and an outer tube rod (303); the inner tube rod (302) is rotatably sleeved on the outer surface of the inner needle rod (301); the outer tube rod (303) is movably sleeved on the outer surface of the inner tube rod (302); a spiral chuck (304) is fixedly provided at one end of the inner needle rod (301) extending out of the inner tube rod (302) and close to the lens; and a handle (319) is integrally provided at one end of the inner tube rod (302) extending out of the outer tube rod (303) and away from the lens.

4. The disposable endoscopic wound suture device according to claim 3, characterized in that: The outer tube rod (303) is integrally provided with a tube end (305) at one end close to the lens, and the inner tube rod (302) is movably sleeved with a live tube (307) at one end close to the tube end (305), and a spring (309) is connected between the tube end (305) and the live tube (307), and the outer wall of the live tube (307) is symmetrically rotatably assembled with a tissue clamp (308), and the outer walls on both sides of one end of the tube end (305) are integrally provided with a support body (306) for resisting the tissue clamp (308), and the side walls of the support body (306) are fixedly connected with a connecting rod (310), and the end of the connecting rod (310) is rotatably connected with a rotating arm (311), and the end of the rotating arm (311) is connected to the outer wall of the tissue clamp (308).

5. The disposable endoscopic wound suture device according to claim 4, characterized in that: A second live tube (312) is movably sleeved on one end of the inner tube rod (302) close to the spiral chuck (304), and a second spring (313) is connected between the second live tube (312) and the first live tube (307), the elastic coefficient of the second spring (313) being greater than the elastic coefficient of the first spring (309), and push blocks (314) are integrally provided on both sides of one end of the second live tube (312) close to the spiral chuck (304).

6. The disposable endoscopic wound stapler according to claim 5, characterized in that: Both sides of the inner tube rod (302) near the end of the spiral chuck (304) are integrally provided with a stopper (315), and the side walls of the stopper (315) facing away from the spiral chuck (304) are rotatably connected to a rotation support plate (316), and the end of the rotation support plate (316) is rotatably connected to a second tissue clamp (317), and the push block (314) abuts against the transition end of the rotation support plate (316) and the second tissue clamp (317), and one end of the second tissue clamp (317) near the transition point is integrally provided with an extension body (3171), and the outer wall of the extension body (3171) is fixedly provided with a guide rod (3172), and both sides of the stopper (315) are fixedly provided with a guide groove plate (318), and the guide rod (3172) slidably passes through the oblique groove on one side of the corresponding guide groove plate (318).

7. The disposable endoscopic wound stapler according to claim 6, characterized in that: A thin plate (3173) is integrally provided at one end of the second tissue clip (317) near the transition point, and side grooves (3151) for resetting the thin plate (3173) are provided on both sides of the edge of the blocking body (315), and the thickness of the extension body (3171) is greater than the thickness of the thin plate (3173), and the thickness of the thin plate (3173) is equal to the width of the side groove (3151).

8. The disposable endoscopic wound stapler according to claim 7, characterized in that: When the live tube 1 (307) penetrates into the inner limit position of the tube end (305), the tissue clamp 1 (308) is perpendicular to the inner tube rod (302); when the live tube 2 (312) moves toward the spiral clamp (304) to the limit position, the tissue clamp 2 (317) is in contact with the side wall of the blocking body (315) and is perpendicular to the inner tube rod (302).

9. The disposable endoscopic wound stapler according to claim 8, characterized in that: A threaded section is provided on the outer surface of one end of the inner tube rod (302) close to the handle (319), and a screw tube (320) is rotatably connected to one end of the outer tube rod (303) close to the threaded section, and the screw tube (320) is screwed to the outer surface of the threaded section.

10. The disposable endoscopic wound stapler according to claim 9, characterized in that: The outer wall of the inner needle rod (301) located inside the handle (319) is integrally provided with a straight strip (321), one end of the handle (319) is internally telescopically assembled with a transfer tube (325), the inner wall of one end of the handle (319) is provided with a spiral guide groove (328), the outer wall of one end of the transfer tube (325) is integrally provided with a ball protrusion (329), and the ball protrusion (329) and the spiral guide groove (328) are threadedly connected, and the inner wall of one end of the transfer tube (325) is movably assembled with a core tube (32 6), and one-way bearings (327) are sleeved on both ends of the core tube (326) and located inside the transfer tube (325), a straight through groove is opened on the inner wall of the core tube (326) for forming a sliding assembly relationship with the straight bar body (321), and a pressing tube (322) is rotatably assembled on the other end of the transfer tube (325), and a protective film (323) is connected between the inner wall of the pressing tube (322) and the outer wall of the handle (319), and a spring three (324) is sleeved on the surface of the shaft body of the pressing tube (322) and located inside the protective film (323).

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