An electric suturing device and endoscopic suturing system

Abstract

This invention provides an electric suturing device and an endoscopic suturing system, relating to the field of medical device technology. The electric suturing device includes a suture clamp assembly, a suture needle assembly, a tissue traction assembly, and an electrically controlled instrument box. The suture clamp assembly includes a suture clamp, a suture clamp seat, and an opening / closing control mechanism, which controls the opening and closing of the two suture clamps. The suture needle assembly includes a suture needle, a locking slider, and a locking control mechanism. The two locking sliders respectively control the two ends of the suture needle to lock or release with the two suture clamps. The locking control mechanism drives the locking sliders to move back and forth. The electric suturing device provided by this invention can be inserted with a gastroscope. By alternately locking and unlocking the two suture clamps with the two ends of the suture needle, and simultaneously coordinating the opening and closing of the two suture clamps, the suture needle can be automatically changed and sutured inside the body. Needle changing requires no additional instruments, making operation simpler, and the manufacturing process is simple and the cost relatively controllable.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to an electric suturing device and an endoscopic suturing system. Background Technology

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

[0003] In addition, obesity and related diseases such as type 2 diabetes are receiving increasing attention worldwide. Gastrointestinal bariatric surgery (weight loss surgery) has been proven effective in achieving sustained weight loss and improving type 2 diabetes. Reducing stomach capacity through open surgery or laparoscopic sleeve gastrectomy has proven to be one of the most effective treatment methods.

[0004] Overstitch and OverstitchSx sutures require instrument withdrawal and needle replacement for each stitch, making the procedure complex. Endomina requires inserting a gastroscope first, then placing a guidewire, then removing the gastroscope, then inserting an instrument through the guidewire, then removing the guidewire, and finally re-inserting the endoscope before surgery can proceed. Although Endiozip sutures are automated, they require 4-5 sets of instruments, and the needles are difficult to manufacture, resulting in high costs. Other laparoscopic sutures, such as endostitch and Endo360, cannot be performed under endoscopy.

[0005] Therefore, how to develop an endoscopic suturing instrument that allows for automatic needle changing during a single insertion and eliminates the need for instrument-based needle replacement is a problem that needs to be solved.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] The present invention includes providing an electric suturing device and an endoscopic suturing system.

[0008] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides an electric suturing device, including a suture clip assembly, a suture needle assembly, a tissue traction assembly, and an electric control instrument box; The suture clip assembly includes a suture clip, a suture clip base, and an opening and closing control mechanism; there are two suture clips arranged opposite to each other, the two suture clips are hinged to the suture clip base, and the opening and closing control mechanism is used to control the opening and closing of the two suture clips; The suture needle assembly includes a suture needle, a locking slider, and a locking control mechanism. The suture needle has two suture tips located at both ends of the suture needle, two locking grooves located near the suture tips, and a suture hole located in the middle of the suture needle. There are two locking sliders and two locking control mechanisms. The two locking sliders respectively control the two ends of the suture needle to lock or release with the two suture clamps. The suture clamp has a suture needle hole, and the two ends of the suture needle are inserted into the suture needle hole. The locking slider is installed inside the suture clamp and includes a release groove and a locking protrusion. The locking groove selectively aligns with the release groove and the locking protrusion to achieve release or locking. The locking control mechanism is used to move the locking slider back and forth. The tissue traction assembly includes a tissue traction pin and a traction control mechanism for controlling the linear and rotational motion of the tissue traction pin; The opening and closing control mechanism, the locking control mechanism, and the pulling control mechanism are all installed inside the electric control instrument box.

[0009] In an optional embodiment, the locking slider includes an L-shaped boss for limiting the up-and-down movement of the locking slider and a limiting protrusion for limiting the movement distance of the suture needle. The L-shaped boss fits against the suture clip, and the release groove and the locking protrusion are located between the L-shaped boss and the limiting protrusion. Preferably, the locking slider further includes a circular column and a wire through hole, and the locking slider further includes a compression spring and a locking wire. The circular column is connected to the L-shaped boss, the wire through hole is disposed on the L-shaped boss, the compression spring is sleeved on the circular column, and the locking wire is connected to the wire through hole.

[0010] In an optional embodiment, the suture clamp includes a suture clamp plate and a suture cover. The suture clamp plate is provided with an upper limit boss, a lower limit boss, and a wire opening. The suture needle hole is located between the upper limit boss and the lower limit boss. The upper limit boss and the lower limit boss are located between the L-shaped boss and the limiting protrusion. The locking wire passes through the wire through hole and then through the wire opening. The suture cover is closed and connected to the suture clamp plate.

[0011] In an optional embodiment, the locking control mechanism includes a grooved bearing, a wire wheel, and a locking motor. The locking wire is introduced into the electric control device box, guided by the grooved bearing, and then fixedly connected to the wire wheel. The locking motor is driven by the wire wheel.

[0012] In an optional embodiment, the two suture clips are hinged relative to the suture clip seat by the cooperation of a fixed pin and a sliding pin, and the opening and closing control mechanism is connected to the sliding pin. Preferably, the two suture clips are hinged to the suture clip seat via the fixed shaft pin. Both the two suture clips and the suture clip seat are provided with waist holes for the sliding shaft pin to move. The sliding shaft pin is hinged to the two suture clips. The opening and closing control mechanism is used to push the sliding shaft pin to slide in the waist hole to open and close the two suture clips.

[0013] In an optional embodiment, the opening and closing control mechanism includes a push-pull wire, a push-pull wire booster rod, a sewing clip connecting shaft, an opening and closing fixing seat, and an opening and closing slide rail. The opening and closing fixing seat is slidably mounted on the opening and closing slide rail. The sewing clip connecting shaft is connected to the opening and closing fixing seat. The other end of the sewing clip connecting shaft is connected to the push-pull wire booster rod. The push-pull wire booster rod is connected to the push-pull wire. The push-pull wire is connected to the sliding shaft pin.

[0014] In an optional embodiment, the tissue traction pin has an insertion tip at its front end, a spiral cutting groove in its middle, and a chamfered transition section at its rear end; the rear end of the tissue traction pin is connected to the traction control mechanism. Preferably, the total length of the spiral cutting groove is 3.5-4 mm; Preferably, the tissue traction assembly further includes a synchronization rope, a synchronization rope booster rod, and a protective sleeve. The two ends of the synchronization rope are respectively connected to the chamfered transition section and the synchronization rope booster rod. The synchronization rope booster rod is connected to the traction control mechanism. The protective sleeve is fitted over the outside of the synchronization rope.

[0015] In an optional embodiment, the traction control mechanism includes a traction rotary motor, a traction motor base, and a traction slide rail. The traction rotary motor is provided with a traction nail connecting shaft, which is connected to the synchronous rope push rod. The traction rotary motor is mounted on the traction motor base, and the traction motor base is slidably mounted on the traction slide rail. Preferably, the traction slide rail is a lead screw.

[0016] In an optional embodiment, the electrically controlled instrument box includes an instrument box cover, an instrument box base, a control board, and control buttons. The opening and closing control mechanism, the locking control mechanism, and the traction control mechanism are all installed inside the instrument box base. The instrument box cover is detachably connected to the instrument box base. The control board is installed inside the instrument box base and is electrically connected to the motors of the opening and closing control mechanism, the locking control mechanism, and the traction control mechanism, respectively. The control buttons are installed on the instrument box cover and are positioned corresponding to the control board.

[0017] In a second aspect, the present invention provides an endoscopic suturing system comprising an electric suturing device and an endoscope sleeve as described in any of the foregoing embodiments, the endoscope sleeve being mounted close to the suturing clip assembly.

[0018] The beneficial effects of the electric suturing device and endoscopic suturing system provided in the embodiments of the present invention include: The electric suturing device provided by this invention can be inserted along with a gastroscope. By alternately locking and unlocking the two ends of the suture needle with two suture clamps, and cooperating with the opening and closing of the two suture clamps, the suture needle can be automatically changed and sutured inside the body. Needle changing does not require additional instruments, making the operation simpler, and the manufacturing process is simple and the cost is relatively controllable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the electric suture device provided in this embodiment; Figure 2 This is a schematic diagram of the stitching clip assembly provided in this embodiment; Figure 3 This is a schematic diagram of the suture clip plate in the suture clip assembly provided in this embodiment; Figure 4 This is a schematic diagram of the suture clamp provided in this embodiment; Figure 5 This is a schematic diagram of the structure of each control mechanism in the electric control instrument box of the suture clip assembly provided in this embodiment; Figure 6 This is a schematic diagram of the control of the opening and closing of the suture clip assembly provided in this embodiment; Figure 7 for Figure 6 Cross-sectional view at point A; Figure 8 This is a schematic diagram of the push-pull connecting rod provided in this embodiment; Figure 9 This is a schematic diagram of the suture needle provided in this embodiment; Figure 10 This is a schematic diagram of the locking slider provided in this embodiment; Figure 11 This is a schematic diagram of the structure of the locking slider controlling the locking of the suture needle in this embodiment; Figure 12This is a schematic diagram of the structure provided in this embodiment for controlling the release of the suture needle using a locking slider; Figure 13 This is a schematic diagram of the structure of the tissue traction assembly provided in this embodiment; Figure 14 This is a schematic diagram of the structure of the tissue traction staple provided in this embodiment.

[0021] Icons: 10-Electric suture device; 100-Suture clip assembly; 110-Suture clip; 111-First suture clip; 112-Second suture clip; 113-Suture clip plate; 114-Upper limit boss; 115-Lower limit boss; 116-Wire opening; 117-Suture cover; 118-Suture needle hole; 119-Cover groove; 120-Suture clip seat; 121-Fixing pin; 122- Waist hole; 123-Sliding shaft pin; 124-Fixing pin hole; 125-Three-lumen tube hole; 126-Locking wire hole; 127-Push-pull connecting rod hole; 130-Opening and closing control mechanism; 131-Push-pull wire; 132-Push-pull wire booster rod; 133-Sewing clip connecting shaft; 134-Opening and closing fixing seat; 135-Opening and closing slide rail; 136-Push-pull connecting rod; 1361-Through hole; 1362-Counterhead hole; 200-Suture needle assembly; 210-Suture needle; 211-Suture tip; 212-Locking groove; 213-Suture hole; 220-Locking slider; 221-Release groove; 222-Locking protrusion; 223-L-shaped boss; 224-Limiting protrusion; 225-Circular column; 226-Wire through hole; 227-Compression spring; 228-Locking wire; 230-Locking control mechanism; 231-Groove bearing; 232-Wire wheel; 233-Locking motor; 240-Flexible three-lumen tube; 300-Tissue traction assembly; 310-Tissue traction pin; 311-Insertion tip; 312-Helical cutting groove; 313-Chamfered transition section; 314-Blind hole; 320-Ttraction control mechanism; 321-Ttraction rotary motor; 322-Ttraction motor base; 323-Ttraction slide rail; 324-Ttraction pin connecting shaft; 330-Synchronization rope; 340-Synchronization rope booster rod; 350-Protective sleeve; 400 - Electric control instrument box; 410 - Instrument box top cover; 420 - Instrument box base; 430 - Control board; 440 - Control buttons; 450 - Power port; 20-Gastroscopy sleeve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0026] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0028] Example Please refer to 1. The present invention provides an electric suturing device 10, including a suture clamp assembly 100, a suture needle assembly 200, a tissue traction assembly 300, and an electric control instrument box 400.

[0029] The present invention will describe the specific structure of the above-mentioned suture clip assembly 100, suture needle assembly 200, tissue traction assembly 300 and electrically controlled instrument box 400 and the interconnection between the various components.

[0030] (1) Sewing clip assembly 100.

[0031] Please see Figure 2 and Figure 5The suture clip assembly 100 includes a suture clip 110, a suture clip seat 120, and an opening and closing control mechanism 130. There are two suture clips 110, which are arranged opposite to each other. In this embodiment, they are named the first suture clip 111 and the second suture clip 112, respectively. The two suture clips 110 are hinged to the suture clip seat 120. The opening and closing control mechanism 130 is used to control the opening and closing of the two suture clips 110.

[0032] There are various ways in which the first suture clip 111 and the second suture clip 112 are hinged to the suture clip seat 120, as long as the opening and closing of the first suture clip 111 and the second suture clip 112 can be achieved. This embodiment provides a typical but not limiting example, in which the first suture clip 111 and the second suture clip 112 are hinged to the suture clip seat 120 through the cooperation of the fixed shaft pin 121 and the sliding shaft pin 123, and the opening and closing control mechanism 130 is connected to the sliding shaft pin 123.

[0033] Specifically, two suture clips 110 are hinged to suture clip base 120 via a fixed pin 121. The fixed pin 121 is rotatably connected to the first suture clip 111 and the second suture clip 112, but their positions are relatively fixed. Both suture clips 110 and the suture clip base 120 are provided with a waist hole 122 for the sliding pin 123 to move. The sliding pin 123 is hinged to the two suture clips 110. The opening and closing control mechanism 130 is used to push the sliding pin 123 to slide within the waist hole 122 to open and close the two suture clips 110. The sliding pin 123 is rotatably connected to the first suture clip 111 and the second suture clip 112 and its position can slide. The opening and closing control mechanism 130 drives the sliding pin 123 to slide, thereby driving the first suture clip 111 and the second suture clip 112 to perform opening and closing movements.

[0034] In this invention, please refer to the structure of the suture clamp 120. Figure 4 ,from Figure 4 As can be seen, the suture clamp 120 is provided with a fixing pin hole 124, a waist hole 122, a three-lumen tube hole 125, a locking wire hole 126, and a push-pull connecting rod hole 127. The fixing pin hole 124 is used to install the fixing pin 121, the waist hole 122 is used to install the sliding pin 123, the three-lumen tube hole 125 is used to install the subsequent flexible three-lumen tube 240, the locking wire hole 126 is used to allow the locking wire 228 to pass through, and the push-pull connecting rod hole 127 is used to install the push-pull connecting rod 136.

[0035] The opening and closing mechanism of the first sewing clip 111 and the second sewing clip 112 in this invention is simple and easy to operate.

[0036] The opening and closing control mechanism 130 can have various structures, as long as it can achieve the reciprocating motion of the sliding pin 123. Since this application is applicable to endoscopic suturing, it needs to be inserted into the body; therefore, this embodiment provides a typical but non-limiting example: Please refer to... Figure 5 , Figure 6 and Figure 7 The opening and closing control mechanism 130 includes a push-pull wire 131, a push-pull wire booster rod 132, a sewing clip connecting shaft 133, an opening and closing fixing seat 134, and an opening and closing slide rail 135. The opening and closing fixing seat 134 is slidably installed on the opening and closing slide rail 135. The sewing clip connecting shaft 133 is connected to the opening and closing fixing seat 134. The other end of the sewing clip connecting shaft 133 is connected to the push-pull wire booster rod 132. The push-pull wire booster rod 132 is connected to the push-pull wire 131. The push-pull wire 131 is connected to the sliding shaft pin 123.

[0037] In this invention, by utilizing the sliding of the opening and closing fixing seat 134 on the opening and closing track, the sewing clamp connecting shaft 133, the push-pull wire push rod 132 and the push-pull wire 131 are sequentially driven to move back and forth, and finally the sliding shaft pin 123 is moved back and forth. The movement of the sliding shaft pin 123 is used to realize the opening and closing of the first sewing clamp 111 and the second sewing clamp 112.

[0038] In this invention, the push-pull wire 131 is directly connected to the sliding pin 123. The push-pull wire 131 is relatively soft, making it easier to insert into the body. To facilitate the connection between the push-pull wire 131 and the sliding pin 123, a push-pull connecting rod 136 is also provided between the push-pull wire 131 and the sliding pin 123 (see [link]). Figure 8 One end of the push-pull connecting rod 136 is a flat structure with a through hole 1361 for contacting the movable pin; the other end of the push-pull connecting rod 136 is a columnar structure with a countersunk hole 1362 inside for fixed connection with the push-pull wire 131.

[0039] (2) Suture needle assembly 200.

[0040] Please see Figure 9 , Figure 10 and Figure 5 The suture needle assembly 200 includes a suture needle 210, a locking slider 220, and a locking control mechanism 230. The suture needle 210 of the present invention is made of TC20 titanium alloy and has an overall arc shape for easy tissue insertion. The suture needle 210 is provided with a suture tip 211, a locking groove 212, and a suture hole 213. There are two suture tips 211 and they are located at both ends of the suture needle 210. There are two locking grooves 212 and they are located close to the suture tips 211. The suture hole 213 is located in the middle of the suture needle 210. There are two locking sliders 220 and two locking control mechanisms 230. The two locking sliders 220 respectively control the two ends of the suture needle 210 to lock or release with the first suture clamp plate 111 and the second suture clamp plate 112.

[0041] In this invention, the suture needle 210 cooperates with the suture clamp 110 to achieve suturing. Specifically, the suture clamp 110 is provided with a suture needle hole 118, and both ends of the suture needle 210 are respectively inserted into the suture needle hole 118. There are two locking sliders 220, which are respectively installed in the first suture clamp 111 and the second suture clamp 112. The locking slider 220 includes a release groove 221 and a locking protrusion 222. The locking groove 212 on the suture needle 210 is selectively opposite to the release groove 221 and the locking protrusion 222 on the locking slider 220 to achieve release or locking. The locking control mechanism 230 is used to drive the locking slider 220 to move back and forth. In this invention, both ends of the suture needle 210 can cooperate with the first suture clamp 111 and the second suture clamp 112 to achieve release or locking.

[0042] The locking slider 220 includes an L-shaped boss 223 for limiting the up and down movement of the locking slider 220 and a limiting protrusion 224 for limiting the movement distance of the suture needle 210. The L-shaped boss 223 fits against the suture clip 110. The release groove 221 and the locking protrusion 222 are located between the L-shaped boss 223 and the limiting protrusion 224. Specifically, the release groove 221 is close to the L-shaped boss 223, and the locking protrusion 222 is close to the limiting protrusion 224. The L-shaped boss 223 and the limiting protrusion 224 can prevent the locking slider 220 from falling off the suture needle 210 during the sliding process.

[0043] For some typical implementation methods, please refer to Figure 10 , Figure 11 and Figure 12 The locking slider 220 also includes a circular post 225, a wire through hole 226, a compression spring 227, and a locking wire 228. The circular post 225 is connected to the L-shaped boss 223, the wire through hole 226 is provided on the L-shaped boss 223, the compression spring 227 is sleeved on the circular post 225, and the locking wire 228 is connected to the wire through hole 226. Please refer to [link / reference]. Figure 11 In this invention, by tightening the locking wire 228, the locking slider 220 is moved to the left. During this movement, the compression spring 227 on the circular column 225 is compressed, causing the locking protrusion 222 to come into close contact with the locking groove 212, thus locking the sewing needle 210. Please refer to [link / reference]. Figure 12 When it is necessary to release the suture needle 210, the locking wire 228 is loosened. Under the restoring force of the compression spring 227, the locking slider 220 moves in the opposite direction (i.e., moves to the right in the figure), so that the release groove 221 is opposite to the locking groove 212 to achieve the function of releasing the suture needle 210.

[0044] Furthermore, since the first suture clip 111 and the second suture clip 112 in this invention need to cooperate with the subsequent suture needle assembly 200, the first suture clip 111 and the second suture clip 112 are configured with a cavity in the middle and a cover. Specifically, please refer to [link to relevant documentation]. Figure 2 and Figure 3 The suture clamp 110 includes a suture clamp plate 113 and a suture cover 117. The suture clamp plate 113 is a long, narrow groove structure. Its bottom flat plate portion serves as a clamping part for relative suturing, while the internal groove structure is used to install the locking slider 220. The suture clamp plate 113 is provided with an upper limit boss 114, a lower limit boss 115, and a wire opening 116. The suture needle hole 118 is located between the upper limit boss 114 and the lower limit boss 115. The upper limit boss 114 and the lower limit boss 115 are located between the L-shaped boss 223 and the limiting protrusion 224. The locking wire 228 passes through the wire through hole 226 and then through the wire opening 116. The suture cover 117 and the suture clamp plate 113 are connected by a covering groove 119.

[0045] The locking control mechanism 230 in this invention can also have various structures, as long as it can drive the locking wire 228 to move. Specifically, in this embodiment, a typical but non-limiting example is provided. Please refer to [link / reference]. Figure 5 The locking control mechanism 230 includes a grooved bearing 231, a wire winding wheel 232, and a locking motor 233. The locking wire 228 is introduced into the electric control instrument box 400, guided by the grooved bearing 231, and then fixedly connected to the wire winding wheel 232. The locking motor 233 is driven by the wire winding wheel 232. In this embodiment, the locking motor 233 rotates forward and drives the wire winding wheel 232 to rotate forward. When the wire winding wheel 232 rotates, the locking wire 228 fixed to the wire winding wheel 232 will be wound on the wire winding wheel 232, thereby achieving the effect of tightening the locking wire 228. During the tightening process of the locking wire 228, the suture needle 210 is locked. When the locking motor 233 reverses, it drives the wire wheel 232 to rotate in the opposite direction. When the wire wheel 232 rotates, the locking wire 228 fixed on the wire wheel 232 will be unwound on the wire wheel 232, thereby achieving the effect of loosening the locking wire 228. During the process of loosening the locking wire 228, the suture needle 210 is released.

[0046] It should be noted that there are two suture clips 110 in this invention (first suture clip 111 and second suture clip 112). Correspondingly, there are also two locking sliders 220 and two locking control mechanisms 230. The two locking sliders 220 control the two ends of the suture needle 210 to lock or release with the two suture plates 113 respectively; while the two locking control mechanisms 230 control the movement of their corresponding locking sliders 220 respectively. Therefore, the above-mentioned locking sliders 220 and locking control mechanisms 230 are two sets. In this embodiment, only one set is described. The other set has the same structure and will not be described in detail in this application.

[0047] Please see Figure 2 In this invention, the push-pull wire 131 and two locking steel wires 228 are arranged side by side and introduced into the electric control device box 400 through a flexible three-lumen tube 240.

[0048] (3) Tissue traction component 300.

[0049] Please see Figure 1 , Figure 5 , Figure 13 The tissue traction assembly 300 includes a tissue traction pin 310 and a traction control mechanism 320 for controlling the linear and rotational motion of the tissue traction pin 310.

[0050] In this invention, the tissue traction pin 310 is positioned parallel to the suture clamp assembly 100. The tissue traction pin 310 is used to pull the tissue at the location to be sutured, so that the suture clamp 110 can hold the tissue, and then the suture needle 210 performs the suturing.

[0051] Please refer to Figure 14 The tissue traction nail 310 is laser-cut in one piece. The front end of the tissue traction nail 310 is provided with an insertion tip 311, which is conducive to spiral insertion into the tissue. The middle part is provided with a spiral cutting groove 312, the total length of which is 3.5-4mm. This ensures the tissue traction effect while avoiding penetration of the stomach wall. The rear end is provided with a chamfered transition section 313, which can effectively prevent collision and jamming when it extends and retracts from the outer tube. The chamfered transition section 313 is also provided with a blind hole 314 in the axial direction for connection with the traction control mechanism 320.

[0052] Please refer to Figure 5 and Figure 13The tissue traction assembly 300 also includes a synchronization rope 330, a synchronization rope booster rod 340, and a protective sleeve 350. The two ends of the synchronization rope 330 are connected to the blind hole 314 on the chamfered transition section 313 and the synchronization rope booster rod 340, respectively. The synchronization rope booster rod 340 is connected to the traction control mechanism 320. The protective sleeve 350 is fitted over the outside of the synchronization rope 330. The synchronization rope 330 can be connected to the tissue traction nail 310. The synchronization rope 330 is flexible, making it easy to insert into the body along with the tissue traction nail. The synchronization rope booster rod 340 can push the synchronization rope 330, causing it to move the tissue traction nail. The protective sleeve 350 protects the synchronization rope 330, making it easier to insert into the body.

[0053] The traction control mechanism 320 includes a traction rotary motor 321, a traction motor base 322, and a traction slide rail 323. The traction rotary motor 321 is equipped with a traction pin connecting shaft 324, which is connected to the synchronous rope push rod 340. The traction rotary motor 321 is mounted on the traction motor base 322, which is slidably mounted on the traction slide rail 323. The traction slide rail 323 is a lead screw. In this invention, the traction rotary motor 321 drives the traction pin connecting shaft 324 to rotate, which in turn drives the synchronous rope push rod 340 to rotate, ultimately driving the synchronous rope 330 and the tissue traction pin connected to the synchronous rope 330 to rotate. During the rotation, the tissue traction pin can spirally penetrate the tissue. Meanwhile, the traction motor base 322 can slide linearly on the traction slide rail 323. Since the traction rotary motor 321 is installed on the traction motor base 322, the linear motion of the traction motor base 322 can drive the traction rotary motor 321, the synchronous rope push rod 340, the synchronous rope 330 and the tissue traction nail to perform linear motion, thereby realizing the action of the tissue traction nail 310 extending linearly to the target area, spirally inserting into the tissue, linearly pulling back and spirally releasing.

[0054] (4) Electric control instrument box 400.

[0055] Please see Figure 1 and Figure 5 The electric control instrument box 400 of this invention is used to house and install the aforementioned control mechanisms. Specifically, the opening / closing control mechanism 130, the locking control mechanism 230, and the pulling control mechanism 320 are all installed inside the electric control instrument box 400. By centrally installing the opening / closing control mechanism 130, the locking control mechanism 230, and the pulling control mechanism 320 inside the electric control instrument box 400, convenient and quick adjustment of each control mechanism can be achieved.

[0056] The electrically controlled instrument box 400 includes an instrument box cover 410, an instrument box base 420, a control board 430, control buttons 440, and a power port 450. The opening / closing control mechanism 130, the locking control mechanism 230, and the traction control mechanism 320 are all installed inside the instrument box base 420. The instrument box cover 410 is detachably connected to the instrument box base 420. The control board 430 is installed inside the instrument box base 420 and is electrically connected to the motors of the opening / closing control mechanism 130, the locking control mechanism 230, and the traction control mechanism 320, respectively. The control buttons 440 are installed on the instrument box cover 410 and their positions correspond to those of the control board 430. The power port 450 is used to connect an external power source to power the entire system.

[0057] In this invention, the movement of each control mechanism can be quickly realized using the control button 440, which is simple to operate and easy to implement.

[0058] In addition, the present invention also provides an endoscopic suturing system, which includes the above-described electric suturing device 10 and a gastroscope sleeve 20, the gastroscope sleeve 20 being mounted close to the suturing clip assembly 100.

[0059] The working principle of the endoscopic suturing system provided by the present invention is as follows: the endoscope is installed on the endoscope sleeve 20, and the electric suturing device 10 is inserted into the body along with the endoscope. The tissue traction component 300 of the electric suturing device 10 is used to traction the tissue at the location to be sutured. Specifically, the rotation of the traction rotary motor 321 and the linear sliding of the traction motor seat 322 on the traction slide rail 323 can enable the tissue traction nail to spirally penetrate the tissue during rotation. At the same time, the linear movement of the traction motor seat 322 can drive the traction rotary motor 321, the synchronous rope push rod 340, the synchronous rope 330 and the tissue traction nail to perform linear movement, so as to realize the action of the tissue traction nail 310 extending linearly to the target area, spirally penetrating the tissue, linearly pulling back and spirally releasing.

[0060] When the tissue traction assembly 300 pulls the tissue below the suture clamp assembly 100, the area to be sutured is clamped and sutured using the cooperation of the first suture clamp 111, the second suture clamp 112, and the suture needle 210. Specifically, one end of the suture needle 210 is first locked to the first suture clamp 111, and the other end of the suture needle 210 is released from the second suture clamp 112. At this time, the first suture clamp 111 and the second suture clamp 112 are opened. Since the first suture clamp 111 is locked to the suture needle 210, there is only a gap between the suture needle 210 and the second suture clamp 112, allowing the tissue to be located between the suture needle 210 and the second suture clamp 112. Subsequently, the first suture clamp 111 and the second suture clamp 112 are closed, and the suture needle 210 near the second suture clamp 112... The end of the needle 210 is inserted into the tissue and contacts the second suture clip 112. Then, the needle 210 and the second suture clip 112 are locked, and the first suture clip 111 and the needle 210 are opened. The needle 210 is pulled so that it passes through the tissue along the direction from the first suture clip 111 to the second suture clip 112. The suture thread in the middle of the needle 210 sutures the tissue. Then, the end of the needle 210 near the first suture clip 111 is inserted into another point of the tissue and contacts the first suture clip 111. Then, the needle 210 and the first suture clip 111 are locked, and the second suture clip 112 and the needle 210 are opened. The needle 210 is pulled so that it passes through the tissue along the direction from the second suture clip 112 to the first suture clip. The suture thread in the middle of the needle 210 sutures the tissue.

[0061] Through the above continuous operation, the tissue traction staple 310 can be used to pull the tissue closer, the suture clip 110 can be used to suture, the tissue can be released, and the suture clip 110 can be used to change the needle repeatedly. After suturing is completed, one end of the suture is tied with an endoscopic suture knotting technique and then cut. At the same time, the locking wire 228 is controlled to release the suture needle 210. After the suture clip 110 is opened, the suture needle 210 is controlled to disengage, the suturing is completed, and the instruments are removed. For suturing of small wounds, barbed sutures can be used. One end of the suture is knotted and the other end is fixed to the suture needle 210. After suturing is completed, the suture can be cut directly, which is more convenient and faster.

[0062] In summary, the electric suturing device 10 provided by the present invention can be inserted together with the gastroscopy. By alternately locking and unlocking the two ends of the suture needle 210 with the two suture clamps 110, the suture needle 210 can be automatically changed and sutured in the body in conjunction with the opening and closing of the two suture clamps 110. Needle changing does not require additional instrument assistance, making the operation simpler, and the manufacturing process is simple and the cost is relatively controllable.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An electric sewing device, characterized in that, Includes suture clip assembly, suture needle assembly, tissue traction assembly, and electrically controlled instrument box; The suture clip assembly includes a suture clip, a suture clip base, and an opening and closing control mechanism; there are two suture clips arranged opposite to each other, the two suture clips are hinged to the suture clip base, and the opening and closing control mechanism is used to control the opening and closing of the two suture clips; The suture needle assembly includes a suture needle, a locking slider, and a locking control mechanism. The suture needle has two suture tips located at both ends of the suture needle, two locking grooves located near the suture tips, and a suture hole located in the middle of the suture needle. There are two locking sliders and two locking control mechanisms. The two locking sliders respectively control the two ends of the suture needle to lock or release with the two suture clamps. The suture clamp has a suture needle hole, and the two ends of the suture needle are inserted into the suture needle hole. The locking slider is installed inside the suture clamp and includes a release groove and a locking protrusion. The locking groove selectively aligns with the release groove and the locking protrusion to achieve release or locking. The locking control mechanism is used to move the locking slider back and forth. The tissue traction assembly includes a tissue traction pin and a traction control mechanism for controlling the linear and rotational motion of the tissue traction pin; The opening and closing control mechanism, the locking control mechanism, and the pulling control mechanism are all installed inside the electric control instrument box.

2. The electric suture device according to claim 1, characterized in that, The locking slider includes an L-shaped boss for limiting the up and down movement of the locking slider and a limiting protrusion for limiting the movement distance of the suture needle. The L-shaped boss fits against the suture clip, and the release groove and the locking protrusion are located between the L-shaped boss and the limiting protrusion. Preferably, the locking slider further includes a circular column and a wire through hole, and the locking slider further includes a compression spring and a locking wire. The circular column is connected to the L-shaped boss, the wire through hole is disposed on the L-shaped boss, the compression spring is sleeved on the circular column, and the locking wire is connected to the wire through hole.

3. The electric suture device according to claim 2, characterized in that, The suture clamp includes a suture plate and a suture cover. The suture plate is provided with an upper limit boss, a lower limit boss, and a wire opening. The suture needle hole is located between the upper limit boss and the lower limit boss. The upper limit boss and the lower limit boss are located between the L-shaped boss and the limiting protrusion. The locking wire passes through the wire through hole and then through the wire opening. The suture cover is closed and connected to the suture plate.

4. The electric suture device according to claim 2, characterized in that, The locking control mechanism includes a grooved bearing, a wire wheel, and a locking motor. The locking wire is introduced into the electric control device box, guided by the grooved bearing, and then fixedly connected to the wire wheel. The locking motor is driven by the wire wheel.

5. The electric suture device according to claim 1, characterized in that, The two suture clips are hinged relative to the suture clip seat by the cooperation of a fixed shaft pin and a sliding shaft pin, and the opening and closing control mechanism is connected to the sliding shaft pin; Preferably, the two suture clips are hinged to the suture clip seat via the fixed shaft pin. Both the two suture clips and the suture clip seat are provided with waist holes for the sliding shaft pin to move. The sliding shaft pin is hinged to the two suture clips. The opening and closing control mechanism is used to push the sliding shaft pin to slide in the waist hole to open and close the two suture clips.

6. The electric suture device according to claim 5, characterized in that, The opening and closing control mechanism includes a push-pull wire, a push-pull wire booster rod, a sewing clip connecting shaft, an opening and closing fixing seat, and an opening and closing slide rail. The opening and closing fixing seat is slidably installed on the opening and closing slide rail. The sewing clip connecting shaft is connected to the opening and closing fixing seat. The other end of the sewing clip connecting shaft is connected to the push-pull wire booster rod. The push-pull wire booster rod is connected to the push-pull wire. The push-pull wire is connected to the sliding shaft pin.

7. The electric suture device according to claim 1, characterized in that, The tissue traction pin has an insertion tip at its front end, a spiral cutting groove in its middle, and a chamfered transition section at its rear end; the rear end of the tissue traction pin is connected to the traction control mechanism. Preferably, the total length of the spiral cutting groove is 3.5-4 mm; Preferably, the tissue traction assembly further includes a synchronization rope, a synchronization rope booster rod, and a protective sleeve. The two ends of the synchronization rope are respectively connected to the chamfered transition section and the synchronization rope booster rod. The synchronization rope booster rod is connected to the traction control mechanism. The protective sleeve is fitted over the outside of the synchronization rope.

8. The electric suture device according to claim 7, characterized in that, The traction control mechanism includes a traction rotary motor, a traction motor base, and a traction slide rail. The traction rotary motor is provided with a traction nail connecting shaft, which is connected to the synchronous rope push rod. The traction rotary motor is mounted on the traction motor base, and the traction motor base is slidably mounted on the traction slide rail. Preferably, the traction slide rail is a lead screw.

9. The electric suture device according to claim 1, characterized in that, The electrically controlled instrument box includes an instrument box cover, an instrument box base, a control board, and control buttons. The opening and closing control mechanism, the locking control mechanism, and the traction control mechanism are all installed inside the instrument box base. The instrument box cover is detachably connected to the instrument box base. The control board is installed inside the instrument box base and is electrically connected to the motors of the opening and closing control mechanism, the locking control mechanism, and the traction control mechanism, respectively. The control buttons are installed on the instrument box cover and are positioned corresponding to the control board.

10. An endoscopic suturing system, characterized in that, It includes the electric suturing device and endoscope sleeve as described in any one of claims 1-9, the endoscope sleeve being mounted close to the suturing clip assembly.

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