Ligation suture device with suspension function and method of use

Abstract

The application provides a kind of with suspension function's ligature suture device and its using method, the ligature suture device includes gun handle, gun rod, push mechanism, shooting mechanism and trigger mechanism, through the cooperation of push mechanism, shooting mechanism and trigger mechanism, multiple biological clips placed in the gun rod can be sequentially shot to corresponding ligature point for ligature, multiple biological clips are strung into a biological clip group by tightening line and one-way lock, and after continuous ligature, the first and last ends are connected by the tightening line to form suspension, compared with prior art, the operation time is shortened, the treatment accuracy is improved, the local tissue is smoothly healed and repaired during operation, the postoperative complications and long-term recurrence rate are reduced, the operation process is standardized and simplified.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to a ligation suture device with suspension function and its method of use. Background Technology

[0002] Hemorrhoids are soft venous masses formed by the tortuous and dilated hemorrhoidal venous plexus in the rectal mucosa and anal canal skin. They are a common and frequently occurring disease both inside and outside the anus. The incidence of hemorrhoids is as high as 44% in the population, accounting for 80.6% of colorectal diseases in my country. Currently, various surgical treatments for hemorrhoids have good efficacy, but postoperative pain and anal stenosis are daunting for patients.

[0003] Currently, surgical treatments for hemorrhoids can be divided into excisional and non-excisional surgeries. Excisional surgeries, primarily aimed at cutting off the blood supply to the hemorrhoids, include procedures such as PPH (Procedure for Prolapsed and Hemorrhoids, also known as stapled hemorrhoidopexy) and TST (Tissue-Selecting Therapystapler), also called selective hemorrhoidal mucosal anastomosis. Taking PPH as an example, it blocks the blood supply to the hemorrhoids while simultaneously suspending the rectal mucosa, which can improve both bleeding and hemorrhoid prolapse. However, it has drawbacks including significant postoperative pain, a certain percentage of anal stenosis and other complications, and difficulties in repeat surgery after recurrence due to structural changes, resulting in poor outcomes.

[0004] The non-resectable surgery, represented by DG-HAL (also known as hemorrhoidal artery ligation), integrates ultrasound exploration and ligation surgery. Under the guidance of Doppler ultrasound, precise positioning is used to perform ligation and suturing, fixing the superior hemorrhoidal artery and rectal mucosa to the muscle layer. By blocking the blood supply to the hemorrhoids, necrosis and sloughing are caused, achieving the therapeutic effect. However, the problem of prolapse still exists, and the postoperative recurrence rate is high.

[0005] Therefore, it is urgent to solve the problems of significant postoperative pain, poor healing and repair, hemorrhoid prolapse and high recurrence rate in current hemorrhoid surgery, in order to effectively ligate and suture blood vessels and / or wounds during surgery and simultaneously complete suspension. Summary of the Invention

[0006] In view of the above-mentioned defects or deficiencies of the prior art, the present invention provides a ligation suture device with suspension function to solve the problems of significant postoperative pain, poor healing and repair, hemorrhoid prolapse and high postoperative recurrence rate in the existing related technologies.

[0007] To achieve the above objectives, the present invention provides a ligation suture device with suspension function, comprising: a handle, a barrel, a pushing mechanism, an ejection mechanism, and a triggering mechanism; the barrel has a ballistic cavity, which includes a biological clip receiving area at the front end for accommodating multiple biological clips and an installation area at the rear end. The multiple biological clips are connected in series to form a biological clip group by a tightening line and a one-way lock. The pushing mechanism is provided in the installation area, which is used to push the multiple biological clips and push the biological clip closest to the front end of the barrel to the ejection position; the ejection mechanism is located at the ejection position at the front end of the barrel and corresponds to the biological clip receiving area; the triggering mechanism is located in the handle and associated with the ejection mechanism, and is used to trigger the ejection mechanism to actuate so that a biological clip pushed to the ejection position by the pushing mechanism is ejected from a biological clip ejection outlet.

[0008] In a preferred embodiment of the present invention, the pushing mechanism includes two elastic components and a slot baffle. The two elastic components are arranged in parallel at the bottom of the ballistic cavity. The two elastic components work together on the slot baffle, and the slot baffle works on the biological clamp.

[0009] In a preferred embodiment of the present invention, the elastic component includes: a slot, a push spring, and a spring fixing rod, wherein the slot is formed at the bottom of the ballistic cavity, the push spring and the spring fixing rod are disposed in the slot, one end of the push spring corresponds to the spring fixing rod, and the other end of the push spring corresponds to the slot baffle.

[0010] In a preferred embodiment of the present invention, a card is further provided inside the ballistic cavity to define the positions of the push spring and the biological clamp.

[0011] In a preferred embodiment of the present invention, the ejection mechanism includes an elastic clip, the elastic clip includes a connecting portion and two clamping portions bent and connected to the connecting portion, the connecting portion is connected to the front end of the gun barrel, the two clamping portions have downward openings, the openings correspond to the biological clip ejection outlet, and the two clamping portions are provided with receiving grooves for receiving the biological clip to be ejected.

[0012] In a preferred embodiment of the present invention, the triggering mechanism includes: a first gear and a second gear meshing with each other; a trigger disposed on the first gear, the trigger extending out of the gun handle; a first return spring, one end of the first return spring being connected to the first gear, and the other end of the first return spring being connected to the gun handle; a retraction rod, one end of the retraction rod being connected to the second gear, and the other end of the retraction rod passing through the gun handle and connected to the elastic clip through a retraction clamp.

[0013] In a preferred embodiment of the present invention, a second return spring is further provided between the two clamping portions of the elastic clamp.

[0014] In a preferred embodiment of the present invention, the top of the bioclamp is provided with a perforation for the tightening wire to be threaded through.

[0015] In a preferred embodiment of the present invention, the ligation suture device further includes a flip-top structure covering the biological clip receiving area. The flip-top structure is movably mounted on the gun barrel and exposes the biological clip receiving area when flipped open for loading and unloading the biological clip. The flip-top structure is provided with a latch for restricting the tightening line and a one-way locking buckle.

[0016] This invention also provides a method for using a ligation suture device, comprising the following steps: loading multiple biological clips, connected in a biological clip group by a tightening line and a one-way lock, into the biological clip receiving area of ​​the ballistic cavity; using a pushing mechanism in the installation area to push the multiple biological clips and push the biological clip closest to the front end of the gun barrel to the firing position; detecting biological tissue to determine the ligation point; starting from the first ligation point, sequentially firing the biological clips to nail the biological clips at the corresponding ligation points for ligation; wherein, nailing the biological clips at the ligation points includes using a trigger mechanism to activate the firing mechanism to fire a biological clip from the biological clip firing outlet at the firing position and nail it to the corresponding ligation point; after all the biological clips in the biological clip group have been fired and nailed to the corresponding ligation points, connecting the last biological clip in the biological clip group to the first biological clip end to end by the tightening line and locking it with the one-way lock to complete the ligation and suspension.

[0017] This invention provides a ligation suture device with suspension function and its method of use. Compared with the prior art, this invention has at least the following technical effects: The ligation suture device includes a gun handle, a gun shaft, a pushing mechanism, an ejection mechanism, and a triggering mechanism. It can eject biological clips to the corresponding ligation points as needed for ligation. Multiple biological clips are connected into a biological clip group by a tightening line and a one-way lock. After continuous ligation, the tightening line completes the suspension by connecting the head and tail. This invention allows the complex ligation suspension procedure to be completed in one operation, shortening the operation time, providing precise treatment, reducing complications, and standardizing and simplifying the surgical process.

[0018] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0019] Figure 1 The diagram shown is an overall schematic diagram of the ligation and suturing device with suspension function of the present invention in one embodiment.

[0020] Figure 2The diagram shows the biological clip in the ligation and suturing device with suspension function of the present invention.

[0021] Figure 3 The image shown is a top view of the pushing mechanism and biological clip in the ligation and suturing device with suspension function of the present invention.

[0022] Figure 4 The diagram shown is a schematic of the injection mechanism in the ligation suture device with suspension function of the present invention.

[0023] Figure 5 The diagram shows the biological clip and flap structure in the ligation and suturing device with suspension function of the present invention.

[0024] Figure 6 The diagram shows the effect of the suspension-functional ligation suture device of the present invention in hemorrhoid surgery. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the information disclosed herein. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this disclosure can be modified or changed according to different viewpoints and application modules without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this disclosure can be combined with each other.

[0026] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily implement it. This disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

[0027] In the representation of this disclosure, the terms “first” and “second” are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. While in some examples the terms first, second, etc., are used herein to denote various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, “first interface” and “second interface”, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising” and “including” indicate the presence of the stated feature, step, operation, element, module, item, type, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, types, and / or groups. The terms “or” and “and / or” as used herein are to be construed as inclusive, or mean any one or any combination thereof. Therefore, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0028] Current surgical treatments for hemorrhoids have several drawbacks, including significant postoperative pain, poor healing and repair, hemorrhoid prolapse, and a high recurrence rate.

[0029] In view of this, the present invention proposes a ligation suture device with suspension function and its method of use, in order to solve the above-mentioned deficiencies in the existing related technologies.

[0030] Please see Figure 1 The figure shows an overall schematic diagram of the ligation suture device with suspension function of the present invention in one embodiment. As shown in the figure, the ligation suture device with suspension function of the present invention is generally gun-shaped, including a gun handle 11, a gun shaft 12 connected to the gun handle 11, a pushing mechanism, an ejection mechanism, and a triggering mechanism.

[0031] The gun barrel 12 has a receiving space to accommodate corresponding components, such as the triggering mechanism (see below for details).

[0032] The gun barrel 12 is provided with a ballistic cavity 121. The ballistic cavity 121 is tubular and is arranged along the length of the gun barrel 12. The ballistic cavity 121 may further include a biological clip receiving area located at the front end (relative to the gun head) and an installation area located at the rear end (relative to the gun handle 11). Multiple biological clips can be accommodated in the biological receiving area, and a pushing mechanism can be installed in the installation area.

[0033] Please see Figure 2The diagram shows a schematic of the bio-clamp in the ligation and suturing device with suspension function of the present invention. The bio-clamp 20 is used to clamp corresponding human tissue or blood vessels. The bio-clamp 20 has two clamping free ends (also called clamping feet). In the initial state, the two clamping free ends of the bio-clamp 20 are open. When the bio-clamp 20 is compressed, the two clamping free ends close together, so that the corresponding human tissue or blood vessel is clamped between the two clamping free ends. Generally, the bio-clamp 20 is highly safe and absorbable by the human body, giving patients peace of mind. Of course, in other embodiments, the bio-clamp 20 can still be modified in other ways; for example, using a biodegradable polymer clamp (e.g., polymer plastic) or a special metal clamp are also feasible options.

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the biological clips filled in the ballistic cavity 121 are in the form of a biological clip assembly. That is, multiple biological clips are strung together into a biological clip assembly by a tightening line 21 and a one-way lock 22, and then the biological clip assembly or multiple biological clip assemblies are filled into the biological clip receiving area of ​​the ballistic cavity 121. For this purpose, the top of the biological clip 20 is provided with a through hole 201 for the tightening line to pass through. In this way, the biological clips 20 are strung together into a biological clip assembly by sequentially passing the tightening line through the through hole 201 of each biological clip 20. The tightening line 21 can be, for example, a biological material suture or a surgical suture, with a certain degree of elasticity and tension. The one-way lock 22 is similar to a self-locking nylon rope ligature lock, and its material can be made of polydioxanone polyester biomaterial, which is sterilizable, degradable, and absorbable. In practical applications, one end of the tightening line 21 is fixed to the one-way lock as a fixed end, and the other end of the tightening line is a free end that passes through the holes 201 of each bioclamp 20 in sequence before being brought back and passed through the one-way lock 22. The one-way lock 22 has a one-way sliding function. During operation, the free end of the tightening line can be held and pulled outward away from the one-way lock to tighten it, so that each bioclamp is brought together and then the tightening line 21 is locked by the one-way lock. In some embodiments, the one-way latch 22 includes a connecting part and a locking hole. The connecting part is connected to the fixed end of the tightening line 21. A locking tongue is provided in the locking hole. The tightening line 21 is provided with a connecting part corresponding to the locking tongue. The connecting part can be, for example, a locking tooth or a locking ring adapted to the locking tongue. Taking the locking tooth as an example, the locking tooth can be a one-way helical tooth or a gear-shaped indentation, which is beneficial for controlling the direction of ligation. The number of locking teeth is set to multiple, and all locking teeth are continuously arranged along the length direction on the tightening line 21. In this way, the size of the tightening space formed by the tightening line 21 can be adjusted according to the number of locking teeth, thereby improving the flexibility of the tightening line 21.

[0035] A pushing mechanism is provided within the installation area. This mechanism is used to push and lift the plurality of biological clips, and to push the biological clip closest to the front end of the gun barrel among the multiple biological clips with suspension function to the firing position. (See also...) Figure 3 The image shown is a top view of the pushing mechanism and biological clip in the ligation suture device of the present invention. Figure 1 and Figure 3 As shown, the pushing mechanism includes two elastic components 13 and a slot baffle 14. The two elastic components 13 are arranged in parallel at the bottom of the ballistic cavity 121. The two elastic components work together on the slot baffle 14, and the slot baffle 14 acts on the biological clamp 20.

[0036] The elastic component further includes: a slot 131, a push spring 132, and a spring fixing rod 133. The slot 131 is located at the bottom of the ballistic cavity 121. The push spring 132 and the spring fixing rod 133 are disposed within the slot 131. One end of the push spring 132 corresponds to the spring fixing rod 133, and the other end of the push spring 132 corresponds to the slot baffle 14. One end of the spring fixing rod 133 can be fixed to the end of the ballistic cavity 121, and the other end of the spring fixing rod 133 can be fixed to the push spring 132. In other embodiments, the spring fixing rod 133 may also be a spring fixing block or a spring fixing pin, etc.

[0037] The slot baffle 14 acts on the bio-clamp 20, having a force-receiving part that contacts the push spring 132 and a push-top that contacts the bio-clamp, such as... Figure 3 As shown, two push-tops 141 extend from the bottom of the card slot baffle 14 to the left and right, and these two push-tops 141 act on the two clamping feet or two waists of the bioclamp.

[0038] Furthermore, in this embodiment, a card is also provided within the ballistic cavity to define the positions of the push spring and the biological clamp. For example... Figure 3 As shown, card 134 is located at the top of ballistic cavity 121 to limit the push spring 132 and biological clip 20 to prevent them from moving up and down inside ballistic cavity 121.

[0039] In this embodiment, a fixing panel is also provided inside the ballistic cavity. For example... Figure 3 As shown, the fixing panel 135 is fixed to the end of the ballistic cavity 121, and the spring fixing rod 133 is fixed to the fixing panel 135.

[0040] The ligation and suturing device with suspension function of the present invention further includes an ejection mechanism and a triggering mechanism. The ejection mechanism is located at the ejection position at the front end of the gun barrel and corresponds to the biological clip receiving area. The triggering mechanism is located inside the gun handle and associated with the ejection mechanism, and is used to trigger the ejection mechanism to actuate so as to eject a biological clip pushed to the ejection position by the pushing mechanism from a biological clip ejection outlet.

[0041] In this embodiment, please refer to Figure 4 The diagram shows the injection mechanism in the ligation suture device with suspension function of the present invention. Figure 4 As shown, the firing mechanism includes an elastic clip 14, which is located at the firing position of the front end of the gun barrel 12 (also referred to as the gun head), in front of the biological clip receiving area. Regarding the elastic clip 14, in conjunction with... Figure 1 and Figure 4 The elastic clip 14 may further include a connecting portion 141 and two clamping portions 142 bent and connected to the connecting portion 141. The connecting portion 141 is connected to the front end of the gun barrel 12. The two clamping portions 142 extend from the connecting portion 141 and are formed by bending downwards. The two clamping portions 142 have downward-facing clamping openings 143, which correspond to the biological clip ejection outlet 122 located at the lower part of the front end of the gun barrel 12. The two clamping portions 142 in the elastic clip 14 can clamp a biological clip 20, and release the clamped biological clip 20 after being subjected to force, and eject it from the biological clip ejection outlet 122. In some embodiments, the elastic clip 14 is a steel clip with an opening. Its connecting portion 141 and two clamping portions 142 are bent at nearly 90 degrees. The two connecting portions 141 are bent vertically with the opening facing downwards. The biological clip 20 closest to the front end of the gun barrel in the biological clip assembly is pushed into the two clamping portions 142 by the push spring 132 in the pushing mechanism as the biological clip 20 to be fired. In addition, the two clamping portions 142 are provided with receiving grooves 144 for receiving the biological clip 20 to be fired. For example, a stop bar or protrusion 1441 is provided on the outer periphery of the two clamping portions 142, surrounding the biological clip 20 to limit the biological clip 20 to be located within the two clamping portions 142. In practical applications, the spring fixing rod 133 and the push spring 132 push the slot baffle 14 toward the front end of the gun rod 12. The slot baffle 14 pushes the multiple biological clips 20 in the biological clip assembly and pushes the biological clip closest to the front end of the gun rod 12 into the receiving groove 144 of the two clamping parts 142 in the elastic clip 14.

[0042] The triggering mechanism is located within the gun handle and associated with the firing mechanism. It triggers the firing mechanism to actuate, thereby firing a biological clamp pushed to the firing position by the pushing mechanism from a biological clamp firing outlet. In this embodiment, as... Figure 1As shown, the triggering mechanism includes: a first gear, a second gear 152, a trigger 153, a first return spring 154, and a retraction rod 155. The first gear 151 and the second gear 152 are fixedly mounted inside the gun handle 11 and mesh with each other to form a linkage gear set. The first gear 151 is a large gear, and the second gear 152 is a small gear. The trigger 153 is mounted on the first gear 151, and a portion of the trigger 153 extends out of the gun handle 11 for operator operation. One end of the first return spring 154 is connected to the first gear 151, and the other end is connected to the gun handle 11. The first return spring 154 drives the associated first gear 151, second gear 152, trigger 153, and retraction rod 155 to complete the reset. One end of the retraction rod 155 is connected to the second gear 152, and the other end passes through the gun handle 12 and is connected to an elastic clip 14 via a retraction clamp 156. Figure 1 As shown, a contraction clamp 156 is located at the free end of the contraction rod 155 and sleeved on the elastic clip 14. The contraction clamp 156 is annular or hollow rectangular in shape, surrounds the connecting part 141 of the elastic clip 14, and can move toward the two clamping parts 142 under the contraction action of the contraction rod 155. In practical application, when the trigger 153 is pulled, the contraction rod 155 is driven to contract toward the gun handle 11 side through the linkage of the first gear 151 and the second gear 152. Under the contraction action of the contraction rod 155, the contraction clamp 156 moves toward the two clamping parts 142. Under the clamping action of the contraction clamp 156, the two clamping parts 142 retract (i.e., squeeze in opposite directions) and release the biological clip 20 wrapped inside, so that the biological clip 20 is ejected from the biological clip ejection outlet 122.

[0043] Furthermore, in some embodiments, such as Figure 4 As shown, a second return spring 145 is also provided between the two clamping parts of the elastic clamp to keep it in a normally open state when not released. That is, after the release and ejection of a biological clamp 20 is completed, the first return spring 154 in the trigger mechanism drives the associated first gear 151, second gear 152, trigger 153, and retraction rod 155 to complete the reset. When the retraction rod 155 resets, it drives the retraction clamp 156 to move toward the front end of the gun barrel 12 to reset. At this time, under the action of the second return spring 145, the two clamping parts 142 expand outward (i.e., release in opposite directions) and remain in a normally open state.

[0044] Through the cooperation of the pushing mechanism, the firing mechanism and the triggering mechanism in the ligation and suturing device with suspension function of the present invention, multiple biological clips in the ballistic cavity can be sequentially fired from the biological clip firing outlet to a designated position for ligation and suturing.

[0045] The ligation suture device with suspension function of the present invention further includes a flap structure covering the biological clip receiving area, the flap structure having a latch for restricting the tightening suture and the one-way locking buckle. See also Figure 5The diagram shows a schematic of the biological clip and flap structure in the ligation suture device with suspension function of the present invention. Figure 5 As shown, the flip-top structure 16 can be movably mounted on the side of the gun barrel 12 by means of a shaft connection or a snap-fit, and the flip-top structure 16 is provided with a latch 161. When the flip-top structure 16 is opened, the biological clip receiving area is exposed for loading and unloading the biological clips 20. For example, the flip-top structure 16 is shaft-connected to the gun barrel. In use, the flip-top structure 16 is flipped open along the pivot to expose the biological clip receiving area; the slot baffle 14 and the push spring 132 in the pushing mechanism are pushed backward toward the gun handle 11 to load multiple biological clips 20 from the biological clip assembly into it; both ends (fixed end and free end) of the tightening line 21 are in the one-way lock 22 and are not tightened. The one-way lock 22 is inserted into the latch 161 and located on the outer side of the flip-top structure 16. The latch 161 is slightly smaller than the one-way lock 22 to prevent the one-way lock 22 from falling off; then the flip-top structure 16 is closed along the pivot.

[0046] This invention also discloses a method for using a ligation and suturing device with suspension function, which generally includes the following steps: First, multiple biological clips, connected in a biological clip group by a tightening line and a one-way lock, are loaded into the biological clip receiving area of ​​the ballistic cavity. A pushing mechanism within the installation area pushes the multiple biological clips, pushing the biological clip closest to the front end of the barrel to the firing position. Next, biological tissue is detected to determine the ligation point. Then, starting from the first ligation point, biological clips are fired sequentially to secure them at the corresponding ligation points for ligation. The securing of the biological clips at the ligation points includes using a trigger mechanism to activate the firing mechanism, causing it to fire a biological clip from the firing position's outlet and secure it to the corresponding ligation point. After all the biological clips in the biological clip group have been fired and secured to their respective ligation points, the last biological clip in the group is connected end-to-end to the first biological clip using a tightening line and locked with a one-way lock, completing the ligation and suspension.

[0047] As can be seen from the above, the ligation suture device with suspension function of the present invention and its method of use can shorten the operation time to the greatest extent, ensure the smooth healing and repair of the local tissues, and reduce postoperative complications and long-term recurrence rate.

[0048] When performing anorectal surgery, particularly hemorrhoid surgery, using the ligation suture device of the present invention, a specific implementation method may include the following steps:

[0049] Assemble the biological clips and insert them into the ligation suture device: Open the flip-top structure to expose the biological clip receiving area. Push the slot baffle and push spring in the pushing mechanism toward the gun handle side and back. Insert multiple biological clips, which are strung together by a tightening line and a one-way lock into the biological clip receiving area of ​​the ballistic cavity (at this time, both ends of the tightening line are in the one-way lock). Insert the one-way lock and tightening line into the slot of the flip-top structure and position them on the outer side of the flip-top structure. Close the flip-top structure. The push spring and slot baffle in the pushing mechanism push the multiple biological clips and push the first biological clip closest to the front end of the gun handle into the two clamping parts of the elastic clip at the firing position.

[0050] Under the guidance of an anoscope with an ultrasound probe, the anoscope is inserted into the rectum for observation. The probe is continuously probed distal to the rectum. Once the ultrasound probe detects a hemorrhoidal blood vessel, the suspension and ligation point is determined.

[0051] The nozzle of the ligation and suturing device, which is filled with a biological clip, is inserted through the anus into the rectum to a designated position, wherein the biological clip outlet located on the nozzle corresponds to the intestinal wall of the rectum.

[0052] Pulling the trigger causes the retracting rod to retract toward the gun handle via the linked first and second gears. The retracting clamp at the front end of the retracting rod moves toward the two clamping parts under the retraction action of the retracting rod. The two clamping parts retract inward (i.e., squeeze each other) under the clamping action of the retracting clamp, releasing the first biological clamp wrapped inside and causing the biological clamp to be ejected from the biological clamp ejection outlet. The ejected first biological clamp is clamped at the first suspension ligation point.

[0053] Starting from the first suspension ligation point, the ligation suture device is gradually pushed outward and backward, continuously ejecting a bio-clamp at intervals of 0.4 cm to 0.6 cm towards the anal end of the rectum and clamping it at the suspension ligation point, until the last bio-clamp in the bio-clamp group. At this point, the bio-clamps in the bio-clamp group are connected by a tightening line, and the one-way lock and tightening line in the bio-clamp group are still locked on the latch of the flip-top structure.

[0054] After the last biological clip is ejected and clamped at the last suspension ligation point, the one-way lock and tightening line in the biological clip assembly can be removed from the latch of the flip-top structure. The last biological clip is then connected end-to-end to the first biological clip via the tightening line, and tightened by the one-way lock to complete the ligation and suspension of this hemorrhoidal vessel.

[0055] Please see Figure 6 The diagram illustrates the effect of the suspension-function ligation suture device of the present invention in hemorrhoid surgery. Figure 6 As shown, hold the free end of the tightening line 21 and pull it outward to gather the various biological clips 20 together and connect them end to end. Then, use the one-way lock 22 to lock the free end of the tightening line 21 to complete the ligation and suspension of the hemorrhoidal blood vessels 30.

[0056] Subsequently, following the above operating steps, other hemorrhoidal vessels were detected and ligated and suspended using a ligation suture device in accordance with the above method. Specifically, the biological clips for each hemorrhoidal vessel were arranged longitudinally, with approximately 1 cm between adjacent ligated vessels. The suspension ligation points of each longitudinal hemorrhoidal vessel intersected and were not on the same horizontal plane.

[0057] After completing the ligation and suspension of all hemorrhoidal vessels, observe the ligation points in the rectum and simultaneously detect postoperative blood flow and rectal pressure before withdrawing the endoscope.

[0058] This invention provides a ligation suture device with suspension function and its method of use. Compared with the prior art, this invention has at least the following technical effects: The ligation suture device with suspension function includes a gun handle, a gun shaft, a pushing mechanism, an ejection mechanism, and a triggering mechanism. It can eject biological clips to the corresponding ligation points for ligation as needed. Multiple biological clips are connected into a biological clip group by a tightening line and a one-way lock. After continuous ligation, the tightening line completes the end-to-end suspension, so that the complex ligation suspension procedure can be completed in one operation, shortening the operation time, providing precise treatment, ensuring the smooth healing and repair of local tissues, reducing postoperative pain, reducing postoperative complications and long-term recurrence rate, and standardizing and simplifying the surgical process.

[0059] Similarly, the ligation and suturing device with suspension function and its method of use of the present invention can also be applied to the treatment of ligation and suturing of other types of blood vessels or wounds in some embodiments.

[0060] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A ligation and suturing device with suspension function, characterized in that, include: Gun handle, gun barrel, push mechanism, firing mechanism, and triggering mechanism; The gun barrel is provided with a ballistic cavity, which includes a biological clip receiving area at the front end for accommodating multiple biological clips and an installation area at the rear end. The multiple biological clips are connected into a biological clip group by a tightening line and a one-way lock. A pushing mechanism is provided in the installation area. The pushing mechanism is used to push the multiple biological clips and push the biological clip closest to the front end of the gun barrel to the firing position. The firing mechanism is located at the firing position at the front end of the gun barrel and corresponds to the biological clip receiving area; the triggering mechanism is located inside the gun handle and associated with the firing mechanism, and is used to trigger the firing mechanism to fire a biological clip pushed to the firing position by the pushing mechanism from a biological clip firing outlet. The ejection mechanism includes an elastic clip, which includes a connecting portion and two clamping portions bent and connected to the connecting portion. The connecting portion is connected to the front end of the gun barrel. The two clamping portions have downward openings that correspond to the biological clip ejection outlet. The two clamping portions are provided with receiving grooves for receiving the biological clip to be ejected. A stop bar or protrusion is provided on the outer periphery of the two clamping portions to surround the biological clip and limit the biological clip to be located within the two clamping portions. The triggering mechanism includes: The first and second gears mesh with each other; A trigger is mounted on the first gear and extends beyond the gun handle; A first return spring, one end of which is connected to the first gear, and the other end of which is connected to the gun handle; and A retractable rod, one end of which is connected to the second gear, and the other end of which passes through the gun barrel and is connected to the elastic clamp via a retractable clamp.

2. The ligation and suturing device with suspension function according to claim 1, characterized in that, The pushing mechanism includes two elastic components and a slot baffle. The two elastic components are arranged in parallel at the bottom of the ballistic cavity. The two elastic components work together on the slot baffle, and the slot baffle works on the biological clamp.

3. The ligation suture device with suspension function according to claim 2, characterized in that, The elastic component includes: a slot, a push spring, and a spring fixing rod. The slot is located at the bottom of the ballistic cavity. The push spring and the spring fixing rod are located in the slot. One end of the push spring corresponds to the spring fixing rod, and the other end of the push spring corresponds to the slot baffle.

4. The ligation and suturing device with suspension function according to claim 3, characterized in that, The ballistic cavity is also equipped with a card to define the positions of the push spring and the biological clamp.

5. The ligation suture device with suspension function according to claim 1, characterized in that, A second return spring is also provided between the two clamping parts of the elastic clamp.

6. The ligation suture device with suspension function according to claim 1, characterized in that, The top of the bio-clamp has a perforation for threading a tightening cord.

7. The ligation suture device with suspension function according to claim 1, characterized in that, It also includes a flip-top structure that covers the biological clip receiving area. The flip-top structure is movably mounted on the gun barrel and exposes the biological clip receiving area when flipped open for loading and unloading the biological clip. The flip-top structure is provided with a latch for restricting the tightening line and the one-way locking buckle.

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