An endoscopic fixation kit

By designing an endoscopic fixation kit, multi-point fixation is achieved through nested or snap-fit ​​structures and tension wires, solving the problem of difficult multi-point rapid fixation of endoscopic closure clips in existing technologies, and improving the operational efficiency and fixation effect of ERCP surgery.

CN113796905BActive Publication Date: 2025-11-07CHENGDU MILITARY GENERAL HOSPITAL OF PLA
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Patent Information

Application Number
CN202111165111.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-09-30
Publication Date
2025-11-07
Estimated Expiration
2041-09-30

AI Technical Summary

Technical Problem

Existing endoscopic closure clips are difficult to use for rapid multi-point fixation in ERCP procedures, and it is also difficult to continue fixation at intervals after a single fixation, which affects the efficiency and effectiveness of the operation.

Method used

Design an endoscopic fixation kit that uses at least two interconnected closed clamps to perform continuous clamping operations by inserting endoscopic forceps into the body once. It adopts a nested or snap-fit ​​structure to maintain a stable connection and achieves multi-point fixation through tension wires.

Benefits of technology

It improves the efficiency of ERCP surgery, reduces the difficulty of the operation, ensures stable fixation of tissues under endoscopy, and enhances the flexibility of operation and fixation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to medical equipment and discloses an endoscope under-fixing kit. The endoscope under-fixing kit is used for single insertion of an endoscope forceps into a body to perform at least two continuous clamping operations. The endoscope under-fixing kit comprises at least two connected closing clamps. The outermost closing clamp has a structure for limiting the endoscope forceps. When the innermost closing clamp is clamped and locked by the endoscope forceps, the adjacent closing clamps are kept in contact with the outer closing clamps due to the outward expansion internal force. The endoscope under-fixing kit is designed with two or more connected closing clamps. The existing endoscope forceps structure is used. The outermost closing clamp is limited by the endoscope forceps. The endoscope forceps are operated to clamp and fix one by one. Therefore, continuous multi-point release is performed after single installation. The endoscope forceps do not need to be taken out for installation. The operation efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical intervention devices, and particularly relates to an endoscopic fixing kit. BACKGROUND

[0002] With the development of modern medical technology, the conditions that cannot directly obtain the cause and lesion condition can be checked on patients with low impact or no impact and the actual situation of the corresponding part in the patient's body can be accurately obtained through existing medical equipment. Among them, endoscopic retrograde cholangiopancreatography (ERCP) is a modern medical intervention treatment method, which specifically refers to inserting a duodenoscope to the descending part of the duodenum, finding the duodenal papilla, inserting a contrast catheter into the papilla opening through a biopsy channel, and taking an x-ray film after injecting contrast agent to display the pancreatic and bile ducts. Since ERCP does not need to be cut, the trauma is small, the operation time is short, the complications are less than surgical operation, and the hospitalization time is greatly shortened, which is deeply welcomed by patients. In just a few decades, ERCP has made great achievements in clinical practice and has become an important treatment method for pancreatic and bile diseases.

[0003] During the ERCP operation, part of the tissue needs to be incised and expanded under the endoscope. When the incision is formed, the corresponding part has a larger swinging range. In order to facilitate the operation, a disposable closure clip is used for clamping and fixing, so as to prevent the irregular swinging of the part of the resected tissue from blocking the affected part and affecting the operation.

[0004] However, the existing closure clip, whether it is a common U-shaped titanium clip or a rotatable clip structure, generally can only release one clip at a single operation. If multiple points need to be fixed, the endoscopic forceps need to be taken out, another clip needs to be installed, and then the operation needs to be performed in the affected part of the human body. Since the operation under the endoscope is difficult, and the difficulty of continuous fixation after single fixation is obviously higher than that of continuous release of two or more closure clips at a single operation, many difficulties will also be caused.

[0005] Moreover, the tissue under the endoscope continues to swing. Even if the endoscopic forceps can be adjusted in angle by stretching and rotating, it is still difficult in actual operation, and a single clip can only fix the tissue in a certain area. Since the closure clip is small in size, multiple closure clips need to be continuously fixed to achieve the expected effect when fixing the incision or other parts. The correlation between the closure clips is low, and they cannot be fixed together. SUMMARY

[0006] In order to solve the problems existing in the prior art, the application provides an endoscopic fixing kit, which releases multiple closure clips at a time, thereby improving the operation efficiency and reducing the operation difficulty.

[0007] The technical scheme adopted by the application is as follows:

[0008] In a first aspect, the present application provides an endoscopic fixation kit, which is used for at least two consecutive clamping operations by a single insertion of an endoscopic forceps into a body, and comprises at least two connected closed clamps, the outermost closed clamp has a structure for limiting the clamping of the endoscopic forceps, and when the innermost closed clamp is released after being clamped by the endoscopic forceps, the adjacent closed clamps are kept in contact with the outer closed clamp due to the outward expansion of the internal force.

[0009] In combination with the first aspect, the present application provides a first implementation of the first aspect, wherein the adjacent closed clamps are connected by clamping.

[0010] In combination with the first implementation of the first aspect, the present application provides a second implementation of the first aspect, wherein one side of the closed clamp is provided with a protrusion, and the other side is provided with a clamping groove, and when the adjacent closed clamps are in contact, the protrusion and the clamping groove form a clamping connection in the expansion direction of the closed clamp.

[0011] In combination with the first aspect, the present application provides a third implementation of the first aspect, wherein the adjacent closed clamps are connected by nesting, and the back of the closed clamp has a sink groove for accommodating the clamping surface of the adjacent closed clamp.

[0012] It is worth noting that the clamping surface of the closed clamp refers to the concave surface on the inner side, and the back refers to the convex surface on the outer side.

[0013] In combination with the first aspect and the first to third implementations of the first aspect, the present application provides a fourth implementation of the first aspect, wherein a tensioning line is provided between the adjacent closed clamps for traction, and when the inner closed clamp is released, the closed clamp that has been locked is pulled by the endoscopic forceps through the tensioning line to move the local tissue, and the tensioning line is continuously tensioned after the release of the adjacent closed clamp.

[0014] In combination with the fourth implementation of the first aspect, the present application provides a fifth implementation of the first aspect, wherein the tensioning line has an enlarged end at both ends, and the enlarged end on either side is retained on the innermost closed clamp, and the other end is sequentially passed through the adjacent closed clamps and retained on the outermost closed clamp.

[0015] In combination with the fourth implementation of the first aspect, the present application provides a sixth implementation of the first aspect, wherein the end of the tensioning line has an enlarged end, and the enlarged end is retained on the innermost closed clamp; the other end of the tensioning line is sequentially passed through the adjacent closed clamps and connected with a hook part provided in the endoscopic forceps, and the hook part is connected with the operating end of the endoscopic forceps.

[0016] In combination with the fourth implementation of the first aspect, the present application provides a seventh implementation of the first aspect, wherein the end of the tensioning line has an enlarged end, and the enlarged end is retained on the innermost closed clamp, and the other end of the tensioning line is sequentially passed through the limiting hole provided on the adjacent closed clamp.

[0017] The size of the limiting hole in the expanded state of the closing clamp is greater than the cross-sectional size of the tensioning line, and the size of the limiting hole is smaller than the cross-sectional size of the tensioning line after the closing clamp is locked.

[0018] With reference to the seventh implementation manner of the first aspect, the present application provides an eighth implementation manner of the first aspect, wherein the tensioning line sequentially passes through one end of the closing clamp, continues to pass through the pipeline of the endoscope forceps, and is connected to the operating end outside the endoscope forceps.

[0019] The present application has the following beneficial effects:

[0020] (1) The present application uses the existing endoscope forceps structure, and through the design of two or more closing clamps connected with each other, the outermost closing clamp is clamped and limited with the endoscope forceps, and the endoscope forceps is clamped and fixed one by one, so that continuous multi-point release can be performed after single installation, without the process of taking out and installing the endoscope forceps, thereby improving the operation efficiency.

[0021] (2) The present application adjusts the structure of the closing clamp, so that the adjacent closing clamps can be kept in stable connection state with the endoscope forceps before closing, and are connected through nesting or clamping, and do not affect the adjacent closing ring after release.

[0022] (3) The present application sets the tensioning line between the adjacent closing clamps, so that the closing clamps can interact like chain links, two points are fixed and kept at a relative distance, thereby effectively fixing different resected tissues under the endoscope, and improving the flexibility of operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a front view of the entire assembly of the present application on the endoscope forceps;

[0024] Figure 2 is a front view of the entire assembly of the present application on the endoscope forceps; Figure 1

[0025] Figure 3 is a front view of the entire assembly of the present application on the endoscope forceps;

[0026] Figure 4 is a front view of the entire assembly of the present application on the endoscope forceps; Figure 3

[0027] Figure 5 is a front view of the entire assembly of the present application on the endoscope forceps;

[0028] Figure 6 is a front view of the entire assembly of the present application on the endoscope forceps;

[0029] Figure 7 is a front view of the entire assembly of the present application on the endoscope forceps;​​

[0030] Figure 8 is a sectional view along the T-T section line in the present application;

[0031] Figure 9 is an axial side view when the first closing clamp and the second closing clamp are sleeved in the present application;

[0032] Figure 10 is a first axial side view when the first closing clamp and the second closing clamp are separated in the embodiment 2 of the present application;

[0033] Figure 11 is a second axial side view when the first closing clamp and the second closing clamp are separated in the embodiment 2 of the present application;

[0034] Figure 12 is an axial side view when the first closing clamp and the second closing clamp are separated in the embodiment 3 of the present application.

[0035] In the figure: 1 - operating end, 2 - pipeline, 3 - clamp arm, 3.1 - clamping groove, 3.2 - avoiding groove, 4 - first closing clamp, 4.1 - embedding groove, 5 - second closing clamp, 5.1 - flange, 6 - tensioning wire, 7 - clamping opening, 8 - perforated opening. DETAILED DESCRIPTION

[0036] The present application will be further illustrated below in conjunction with the accompanying drawings and specific embodiments.

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

[0039] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0040] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, if the terms "first", "second" and the like appear in the description of the present application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] In addition, if the terms "horizontal", "vertical" and the like appear in the description of the present application, they do not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0042] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "provided", "mounted", "connected", "connected" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] Embodiment 1

[0044] The present embodiment discloses an endoscopic fixation kit. Since the structure is different from the prior art, the technical problems solved thereby need to be briefly described. First, an endoscope is a tubular structure that enters the human body through natural orifice or surgical incision, and has a camera with a light at the end, which can view the internal tissue site. If operation is required, different instruments are inserted through the channel for operation.

[0045] Among them, the instrument includes an endoscopic forceps, which includes various forms, but all have an operating end 1 and a pipeline 2, and the endoscopic forceps is arranged at the end of the pipeline 2, and a hard wire is arranged on the operating end 1, which is connected with the endoscopic forceps at the end through the pipeline 2 for operation.

[0046] The most basic endoscopic forceps has two forms of opening and occlusion, which can grasp and release. The grasping process clamps the target tissue, and always maintains the clamping state after occlusion, and is pulled out to achieve the purpose of sampling. The release includes various structures, and the present embodiment mainly relates to a closed clamp.

[0047] The so-called closure clip is usually made of titanium metal material and has a large internal force, which can continuously maintain the expanded state. However, the closure clip has a locking structure, which can be locked and fixed when the two jaws are in mutual engagement by applying force from the outside structure, thereby achieving the effect of stable clamping.

[0048] The closure clip in the prior art usually includes two types, a U-shaped clip and a cylindrical clip closed by rotating. The present embodiment mainly describes the U-shaped closure clip.

[0049] As shown in Figure 1 , the handheld clip used in the present embodiment has an operating portion on the outside, and the operating portion is connected to the endoscope forceps through a pipeline 2. This clip is a common instrument, and the pipeline 2 shown in the figure is in a straight line shape, but can be changed to a flexible rubber tube according to the needs to adapt to the movement of the intestinal tract.

[0050] As can be seen in Figure 5 and Figure 6 , the end of the endoscope forceps has two forceps arms 3, and the end of the forceps arm 3 has a relief groove 3.2 along the length direction of the forceps arm 3. The two forceps arms 3 are controlled by the operating end 1 connected through the cable in the pipeline 2 to clamp. The clamp is a prior art device, and a common U-shaped titanium clip can be placed at the end thereof, and the convex part of the titanium clip is clamped and limited by the recess groove at the end of the forceps arm 3. Since the U-shaped titanium clip itself has an outwardly expanding internal force, and the two ends have a locking and closing structure, only when the two ends are completely closed can the titanium clip be kept in a closed state, and the titanium clip is in close contact with the forceps arm 3 during operation.

[0051] In the prior art, since the endoscope forceps only has one set of recess grooves for clamping and limiting, only one titanium clip can be installed at a time, and after being released, it needs to be pulled out and installed again, which brings inconvenience to the operation under the endoscope. Especially for incisions that need to be quickly fixed or other tissues with a large swing range, when one point is fixed, another point needs to be quickly fixed, and if the time is not enough, the other parts that need to be fixed may be scattered or convoluted, which brings inconvenience to the subsequent fixation, and the fixation effect also affects the subsequent operation.

[0052] In the prior art, there are devices for improving the endoscope forceps to enable single insertion and multiple release. Such devices usually have a complex front structure and have a storage cavity for placing multiple closure clips, and the corresponding closure clip structure is also adjusted. However, the present embodiment only optimizes the titanium clip itself, and can directly use the existing endoscope forceps structure to achieve the effect of single insertion and multiple release.

[0053] Specifically, the fixed set in the embodiment includes at least two closing clamps, since only a better limiting connection effect between adjacent closing clamps is needed, only the specific structure of an adjacent group of closing clamps is described in the embodiment.

[0054] Wherein, the back of the jaw arm 3 of a single closing clamp has an outward protrusion, and the inner side of the closing clamp has a connecting groove, the protrusion of the adjacent closing clamp falls into the connecting groove to achieve limiting, since it has a larger expansion internal force. Without external force, the inner closing clamp always maintains close contact with the outer closing clamp, and the internal force makes the connection between the protrusion and the connecting groove more stable, and all closing clamps can remain fixed when moving the endoscope forceps during operation.

[0055] And in the two end portions of each closing clamp, one has a hook groove and the other has a wedge-shaped tip, when the endoscope forceps are clamped, the wedge-shaped tip can be pushed into the hook groove, at this time the end portion forms a stable locking state, and the corresponding outward expansion internal force is inhibited, which causes the close contact state with the adjacent closing clamp on the outside to be disconnected, thereby completing a single release without affecting the internal closing clamp.

[0056] It is worth noting that the embodiment mainly describes such a clamp, but similar rotating clamp structures are also applicable. Through the front and rear structure design, the clamping structure at the end of the first group of clamps still maintains the clamping limiting effect with the adjacent cylindrical clamps. At this time, moving the end portion makes the already fixed clamps pull out the adjacent clamps inside, and continue to pull the wire tube under the limitation of the rotating mechanism. The rear clamps fall out of the pipeline 2, then quickly expand outward, thereby losing the clamping and fixing effect with the end portion of the front clamps.

[0057] It is also worth noting that the device in the embodiment can be used in various surgical procedures under the endoscope, and is not limited to digestive tract surgery.

[0058] Embodiment 2:

[0059] The embodiment discloses an endoscopic fixed set, which also adopts a U-shaped closing clamp structure. Different from embodiment 1, adjacent closing clamps are connected in a nested manner.

[0060] Specifically, as shown in Figures 7-9 The figure shows a closing clamp structure different from embodiment 1. Although multiple overlapping designs can be used, only the outermost closing clamp is different, and the internal closing clamp structure is the same, so only the outermost and adjacent closing clamps are described.

[0061] The same endoscope forceps as in embodiment 1 are used in the embodiment, and the operation mode and clamping mode are the same, so some contents are not described again.

[0062] The inner side of the figure is the first closing clamp 4, while the outer side is the second closing clamp 5. The end of the second closing clamp 5 has two outward flanges 5.1, while the inner side of the first closing clamp 4 is provided with an embedding groove 4.1. Figure 2 As can be seen in the figure, the end of the clamp arm 3 has a circular clamping groove 3.1 perpendicular to the length direction of the clamp arm 3, which is just for the flanges 5.1 of the second closing clamp 5 to fall into to achieve the limiting and fixing effect.

[0063] The back of the inner side of the first closing clamp 4 is also provided with an embedding groove 4.1. As can be seen, the back of the first closing clamp 4 has a width greater than the clamping surface width of the second closing clamp 5, so that the clamping surface of the second closing clamp 5 can just fall into the embedding groove 4.1 on the back of the first closing clamp 4 to achieve the nesting. This connection method avoids the mutual influence between the inner and outer closing clamps, and after the inner side is released, the outer closing clamp can continue to be connected with the clamp arm 3 of the endoscope forceps. Compared with the limiting connection method of the protrusion and the clamping groove 3.1, this larger area nesting connection has higher stability and can reduce the possibility of falling off during operation.

[0064] Embodiment 3:

[0065] The embodiment discloses an endoscopic fixing kit. Different from the above two embodiments, since each closing clamp is an independent structure, this releasing and fixing can only clamp and fix a small area of tissue. For some target tissues with a certain length and which need to be moved to other positions, usually multiple closing clamps are used, but this effect often cannot meet the operation requirements.

[0066] For example, when performing bile duct ERCP, it is necessary to insert a contrast catheter into the opening part of the nipple from the biopsy pipeline. If there are stones or other conditions inside that need to be enlarged, a dilating device is needed. However, since the opening part of the nipple is small and the opening position displayed under the scope constantly moves, it is not convenient for operation. At this time, a part of the opening part of the nipple needs to be cut open by an electrotome, and then one side of it needs to be pushed away and fixed. If only one closing clamp is clamped, the identification cannot achieve the expected effect. However, multiple closing clamps will also affect the operation, so that multiple clamps appear in the local area.

[0067] The embodiment is optimized based on the above-mentioned embodiment 2, and a tensioning wire 6 is arranged between the two adjacent clamps. First, the tensioning wire 6 has an enlarged end, the enlarged end is located at the bending part of the inner side of the first closing clamp 4, and passes through the bending part to form another enlarged end after passing through the outer side of the second closing clamp 5.

[0068] At this time, by pre-setting a certain length of the tensioning wire 6, the two closing clamps can maintain a certain distance, which can facilitate the operator to use and achieve a better fixing effect.

[0069] As shown in the above process, at this time only need to first close the clamp 4 with the cut open side wall of the nipple, due to the first close the clamp 4 lock fixed, need to move the endoscope forceps make tension line 6 is straight, at this time in continue to move the endoscope forceps, due to the flange 5.1 with the card slot 3.1 cooperation, at the same time due to the second close the clamp 5 expansion force is larger, then the second close the clamp 5 continues to connect with the endoscope forceps, and through the tension line 6 will first close the clamp 4 to the corresponding position.

[0070] At this time, the operation end 1 of the endoscope forceps will fix the second close the clamp 5 on the intestinal wall, then the second close the clamp 5 will continue to give the first close the clamp 4 to the position of the pulling force through the tension line 6, so as to fix the wall of the cut open nipple opening.

[0071] It is worth mentioning that, in this embodiment, only two adjacent close the clamp is described as an example, but actually can adopt multiple close the clamp, and set the distance between each close the clamp according to the demand, so as to achieve the effect of multi point fixed tension. Because of the nested structure, and the close the clamp made of titanium metal has a larger expansion force, so that it can keep stable during tensioning.

[0072] Embodiment 4:

[0073] This embodiment also discloses an endoscopic fixation kit, and is optimized and limited on the basis of the above embodiment 3. In the above embodiment 3, only the fixing mode between two close the clamps is limited. Because the fixed object in some operations has a larger displacement resistance, the tension line 6 between two close the clamps cannot pull, and the close the clamp originally fixed on the endoscope forceps will fall off.

[0074] In this embodiment, the close the clamp is made of non-metallic and easily absorbed material, and its expansion force is smaller than that of titanium material. In this embodiment, the tension line 6 is also connected, but the tension line 6 has only one enlarged end, which is in the innermost close the clamp and is fixed. The other end of the tension line 6 passes through each close the clamp in turn, and is connected with a special setting tension line in the pipeline 2 on the endoscope forceps, and the tension line extends to the operation end 1 and forms an independent end for operation.

[0075] At this time, the tension line 6 can pass freely on the close the clamp which is not released, so that when the first close the clamp is fixed, the close the clamp adjacent to it is not affected.

[0076] In order to also achieve the tensioning effect, a clamping opening 7 is arranged on the bending part of the innermost close the clamp in this embodiment, as shown in Figure 9 and 10 Or a size larger than the section of the tension line 6 is directly opened on the clamping arm near the bending part, as shown in Figure 11 andFigure 12 As shown.

[0077] When the closing clamp is clamped and fixed, the bending part is pressed tightly inwards or outwards, and the tensioning wire 6 originally freely passing through the clamping opening 7 or the opening 8 is locked to achieve the fixing effect.

[0078] The specific operation is as follows: first, fix the innermost closing clamp on the target tissue, at this time, move the endoscope forceps to the corresponding position, since the tensioning wire 6 is always in a free state, it does not affect the movement of the second closing clamp. Then, move the second closing clamp to the corresponding position, and make the hook groove of one side of the clamping arm hook the tissue to form a pre-knot, then pull the tensioning wire 6 at the operating end 1, at this time, the first fixed closing clamp will move the tissue to this position, after moving to the required length, operate the endoscope forceps to fix and lock the second closing clamp, thereby completing the fixing target of tensioning and dragging, at this time, according to the requirement, if there are only two fixed targets, the remaining closing clamp on the endoscope forceps can be cut off by operating the endoscope forceps again, and the remaining tensioning wire 6 will be taken away together with the endoscope forceps.

[0079] It is worth mentioning that the tensioning wire 6 and the closing clamp in the embodiment are made of medical materials, which will not affect the intestinal tract and the patient's body, and at the same time, since they are digestible materials, they will be digested in a certain period of time.

[0080] The present application is not limited to the above-mentioned optional embodiments, and anyone can derive other various forms of products under the inspiration of the present application. The above-mentioned specific embodiments should not be understood as limiting the protection scope of the present application, and the protection scope of the present application should be defined by the claims, and the specification can be used to explain the claims.

Claims

1. An endoscopic fixation kit for at least two successive clipping operations by a single insertion of an endoscopic forceps into the body, characterized in that: The device comprises at least two mutually connected closed clamps, the outermost closed clamp has a structure for limiting the clamping of the endoscope forceps, when the innermost closed clamp is clamped by the endoscope forceps, the adjacent closed clamp keeps in contact with the outer closed clamp due to the outward expansion of the internal force; The adjacent closed clamps are clamped together, the second closed clamp is provided with a protrusion, the first closed clamp is provided with a clamping groove, the protrusion and the clamping groove form a clamping connection in the expansion direction of the closed clamp when the adjacent closed clamps are in contact; the adjacent closed clamps are connected in a nested manner, the first closed clamp has an embedding groove (4.1) on the back surface for accommodating the clamping surface of the adjacent closed clamp, and the second closed clamp has an enlarged end for limiting the clamping of the embedding groove (4.1).

2. The endoscopic fixation kit of claim 1, wherein: A tensioning wire (6) is arranged between the adjacent closed clamps for traction, when the innermost closed clamp is released, the clamped closed clamp is pulled by the endoscope forceps through the tensioning wire (6) to move the local tissue, and the tensioning wire (6) is continuously tensioned after the adjacent closed clamp is released.

3. The endoscopic fixation kit of claim 2, wherein: Both ends of the tensioning wire (6) have an enlarged end, either side of the enlarged end is retained on the innermost closed clamp, and the other end is sequentially retained on the outermost closed clamp after passing through the adjacent closed clamps.

4. The endoscopic fixation assembly of claim 2, wherein: The end of the tensioning wire (6) has an enlarged end, and the enlarged end is retained on the innermost closed clamp. The other end of the tensioning wire (6) sequentially passes through the adjacent closed clamps and is connected with a hook part provided in the endoscope forceps, and the hook part is connected with the operating end (1) of the endoscope forceps.

5. The endoscopic fixation assembly of claim 2, wherein: The end of the tensioning wire (6) has an enlarged end, and the enlarged end is retained on the innermost closed clamp, and the other end of the tensioning wire (6) sequentially passes through a limiting hole provided on the adjacent closed clamp. The size of the limiting hole in the expanded state of the closed clamp is larger than the cross-sectional size of the tensioning wire (6), and when the closed clamp is clamped, the size of the limiting hole is smaller than the cross-sectional size of the tensioning wire (6).

6. An endoscopic fixation kit according to claim 5, wherein: The tensioning wire (6) sequentially passes through one end of the closed clamp and continues to pass through the pipeline (2) of the endoscope forceps and is connected with the operating end (1) outside the endoscope forceps.

Citation Information

Patent Citations

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