Ligation clamp with double-clamping-arm structure

Abstract

The utility model relates to a ligation clamp with a double-clamping-arm structure, which comprises a ligation clamp body and an upper clamping arm and a lower clamping arm. The rear ends of the upper clamping arm and the lower clamping arm are hinged, and the front ends are locked by a locking structure; the side walls of the front parts of the upper clamping arm and the lower clamping arm are provided with clip applier grasping columns; a first groove which is concave upwards and extends in the front-back direction is formed in the middle of the clamping face of the upper clamping arm. And a second groove which is sunken downwards and extends in the front-back direction is formed in the middle of the clamping surface of the lower clamping arm. The U-shaped ligature clip has the advantages that the groove structure is additionally arranged on a traditional U-shaped ligature clip structure, an upper clamping arm structure and a lower clamping arm structure are further derived, the clamping closing effect that one-time clamping closing is equal to clamping closing of two ligature clips can be achieved through the upper clamping arm structure and the lower clamping arm structure, the problems of slipping and automatic bouncing after installation and closing are avoided, and the ligature clip is convenient to use. And meanwhile, the operation of secondary clamping closing is omitted.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a ligation clip with a double-arm structure. Background Technology

[0002] In modern surgery, vascular ligation can be achieved by either using a ligation clip to close the vessel or by suturing it with surgical sutures. Using surgical sutures for vascular ligation requires complex manipulation of the needle and suture to form the necessary knot. This complex procedure is time-consuming and demands a high level of skill from the surgeon, especially in endoscopic surgeries where space and visibility are limited. In contrast, ligation clips are relatively easy and quick to apply, leading to a dramatic increase in their use in endoscopic surgical procedures.

[0003] Traditional ligation clips primarily use clamping forceps as closure tools, where the two ends of the clip interlock to complete the ligation of tissue and blood vessels. However, traditional ligation clips suffer from insufficient clamping force and anti-dislodgement performance. After closure, the plastic ligation clip may slip on the blood vessel or fail to close tightly, resulting in incomplete blockage of blood flow or dislodgement. This poses significant safety risks to patients and adds psychological stress to surgeons. Therefore, surgeons typically leave two or more ligation clips on the patient's end for post-ligation care, increasing both the number of clips used and the surgeon's workload. Thus, improving the safety and reliability of ligation clips during surgery and reducing the risks of slippage and dislodgement is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a ligation clip with a double-arm structure, which can effectively avoid the problem of insufficient product strength and easy slippage.

[0005] This utility model is achieved through the following technical solution: a ligation clip with a double clamping arm structure, the main body of which is a ligation clip, including an upper clamping arm and a lower clamping arm; the rear ends of the upper clamping arm and the lower clamping arm are hinged together, and the front ends are locked by a locking structure;

[0006] Both the upper and lower clamping arms are equipped with clamping pins on the front side walls;

[0007] The clamping surface of the upper clamping arm is provided with a first groove that is recessed upward and extends in the front-back direction.

[0008] The clamping surface of the lower clamping arm is provided with a second groove that is recessed downward and extends in the front-to-back direction.

[0009] Compared with previous technologies, the beneficial effects of this utility model are as follows:

[0010] 1. A groove structure is added to the traditional U-shaped ligation clip structure. The groove structure forms two clamping surfaces on both sides, which in turn gives rise to an upper and lower double clamping arm structure. The upper and lower double clamping arm structure can achieve the same clamping effect as clamping two ligation clips with one clamping, avoiding the problems of slippage and automatic pop-out after installation and closure, while saving the operation of clamping twice.

[0011] 2. When the thickness of the clamping arms is consistent, the tissue will sink into the groove, thereby increasing the outer surface area of ​​the upper and lower double clamping arm structure; at the same time, it also increases elasticity and toughness, thereby improving the ability to resist spring-load and the ability to prevent slippage.

[0012] 3. The groove structure forms an outward expansion block after the clamping mechanism is closed, making the product less prone to slippage after installation and providing a more effective closing clamping force.

[0013] 4. The upper and lower double clamping arm structure can also reduce the requirements for material strength. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram from another perspective of this utility model;

[0016] Figure 3 This is a diagram illustrating the effect of clamping vascular tissue using this invention.

[0017] Figure 4 This is an illustration of the effect of using two ligation clips to clamp blood vessel tissue using existing technology.

[0018] Labeling explanation: 1 ligation clip, 11 upper clamp arm, 111 upper left clamp arm, 112 upper right clamp arm, 113 first groove, 114 barb, 12 lower clamp arm, 121 lower left clamp arm, 122 lower right clamp arm, 123 second groove, 124 locking head, 13 clamping clamp gripper post, 14 anti-slip teeth. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description:

[0020] like Figures 1 to 4 As shown, a ligation clip with a double-arm structure is a ligation clip 1, which includes an upper clamping arm 11 and a lower clamping arm 12; the upper clamping arm 11 and the lower clamping arm 12 are hinged at their rear ends and locked at their front ends using a locking structure.

[0021] Both the upper clamping arm 11 and the lower clamping arm 12 are provided with clamping pins 13 on the front side walls;

[0022] The clamping surface of the upper clamping arm 11 is provided with a first groove 113 that is recessed upward and extends in the front-back direction;

[0023] The clamping surface of the lower clamping arm 12 is provided with a second groove 123 that is recessed downward and extends in the front-back direction.

[0024] The first groove 113 extends upward to the upper surface of the upper clamping arm 11 to form a first slot, which divides the upper clamping arm 11 into a left upper clamping arm 111 and a right upper clamping arm 112.

[0025] The second groove 123 extends downward to the lower surface of the lower clamping arm 12 to form a second slot, which divides the lower clamping arm 12 into a left lower clamping arm 121 and a right lower clamping arm 122.

[0026] This invention adds a first groove and a second groove to the traditional U-shaped ligation clip structure, creating a double-arm structure. This double-arm structure achieves the same clamping effect as clamping two ligation clips with a single clamping action, preventing slippage and automatic spring-back after installation and eliminating the need for secondary clamping. With the same thickness, the clamping surfaces of the upper and lower arms, as well as the inner surfaces of the grooves, constitute the clamping area, thus increasing the surface clamping area. Furthermore, it increases elasticity and toughness, thereby improving resistance to spring-back and slippage.

[0027] like Figure 3 , 4 As shown: the first groove 113 forms a first slot, dividing the upper clamping arm 11 into a left upper clamping arm 111 and a right upper clamping arm 112; the second groove 123 forms a second slot, dividing the lower clamping arm 12 into a left lower clamping arm 121 and a right lower clamping arm 122. After the product is closed, the left and right clamping arms achieve the same clamping effect as two ligation clips; at the same time, the gap between the left and right clamping arms forms an outwardly expanding tissue block after clamping, effectively preventing the product from slipping axially and laterally after installation and closure.

[0028] The rear ends of the upper clamping arm 11 and the lower clamping arm 12 are hinged together. The hinge structure is a fairly common hinge technique, so it will not be described in detail.

[0029] Both the first groove 113 and the second groove 123 extend to the hinge. Guiding the first groove 113 and the second groove 123 to the hinge is mainly to facilitate the processing of the groove or slot.

[0030] The locking structure consists of a barb 114 located at the front end of the upper clamping arm 11 and a lock head 124 located at the front end of the lower clamping arm 12.

[0031] The barb 114 and the lock head 124 engage to lock together after clamping. The locking mechanism is fairly standard, so it will not be described in detail.

[0032] Anti-slip teeth 14 are provided on the clamping surfaces of the upper left clamping arm 111 and the lower left clamping arm 121;

[0033] Anti-slip teeth 14 are provided on the clamping surfaces of the upper right clamping arm 112 and the lower right clamping arm 122.

[0034] The structure of the anti-slip teeth is fairly standard, so we won't go into too much detail. Their purpose is to increase the friction of the clamping surfaces and prevent slippage.

[0035] In summary, the method of using this utility model is as follows:

[0036] Using the clamping forceps, attach the present invention to the clamping forceps, and insert it into the vascular tissue to be clamped through the instrument channel to locate the desired clamping position. Then, apply force to the clamping forceps to clamp the present invention until you hear the barbs and locking head lock together and make a locking sound. Release the clamping forceps, observe the clamping situation, and after confirming that everything is correct, remove the clamping forceps from the instrument channel. The clamping is then complete.

[0037] The clamping effect of this utility model is as follows: Figure 3 As shown. Due to the presence of the first and second grooves, the tubular tissue or blood vessel is compressed when clamped, thus forming a large cavity at the opening groove. This large cavity can block the relative displacement of the ligation clip, thereby increasing the anti-slipping force of the ligation clip.

[0038] Although this utility model has been illustrated and described using specific embodiments and alternative methods, it should be understood that various changes and modifications are permitted as long as they do not depart from the spirit and scope of this utility model. Therefore, it should be understood that this utility model is not limited in any sense except by the appended claims and their equivalents.

Claims

1. A ligation clip with a double-arm structure, the main body of which is a ligation clip (1), which includes an upper clamping arm (11) and a lower clamping arm (12); the upper clamping arm (11) and the lower clamping arm (12) are hinged at their rear ends and locked at their front ends by a locking structure; The side walls at the front of the upper clamping arm (11) and the lower clamping arm (12) are provided with clamping pins (13); Its features are: The clamping surface of the upper clamping arm (11) is provided with a first groove (113) that is recessed upward and extends in the front-back direction; The clamping surface of the lower clamping arm (12) is provided with a second groove (123) that is recessed downward and extends in the front-back direction.

2. A ligation clip with a double-arm structure according to claim 1, characterized in that: The first groove (113) extends upward to the upper surface of the upper clamping arm (11) to form a first slot, which divides the upper clamping arm (11) into a left upper clamping arm (111) and a right upper clamping arm (112). The second groove (123) extends downward to the lower surface of the lower clamping arm (12) to form a second slot, which divides the lower clamping arm (12) into a left lower clamping arm (121) and a right lower clamping arm (122).

3. A ligation clip with a double-arm structure according to claim 1, characterized in that: The rear ends of the upper clamping arm (11) and the lower clamping arm (12) are hinged together.

4. A ligation clip with a double-arm structure according to claim 1, characterized in that: The first groove (113) and the second groove (123) both extend to the hinge.

5. A ligation clip with a double-arm structure according to claim 1, characterized in that: The locking structure is a barb (114) located at the front end of the upper clamping arm (11) and a lock head (124) located at the front end of the lower clamping arm (12); The barb (114) and the lock (124) engage to lock after clamping.

6. A ligation clip with a double-arm structure according to claim 2, characterized in that: The clamping surfaces of the upper left clamping arm (111) and the lower left clamping arm (121) are provided with anti-slip teeth (14); The clamping surfaces of the upper right clamping arm (112) and the lower right clamping arm (122) are provided with anti-slip teeth (14).

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