Novel snare for in-vitro hernial sac ligation
By designing a novel external hernia sac ligation snare with an adjustable inner ring using a ring-shaped retractor, the problems of surgical wound enlargement and damage in existing technologies have been solved, achieving complete exposure and safe ligation of the hernia sac.
Patent Information
- Application Number
- CN202422539174.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing external hernia sac ligation techniques rely on the surgeon's experience, which can easily lead to an enlarged surgical wound and unnecessary damage. Traditional snares cannot effectively expose deep structures.
A novel snare device for external hernia sac ligation is designed. It uses a ring-shaped retractor to open the tissue around the ligation site, and adjusts the size of the inner ring by a slider and a groove to avoid cutting or damaging the surrounding tissue.
This method achieves complete exposure of the hernia sac, avoids cutting and damaging surrounding normal tissues, and improves the safety and efficiency of the surgery.
Smart Images
Figure CN223489781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of external hernia sac ligation technology, specifically to a novel external hernia sac ligation snare. Background Technology
[0002] The single-port laparoscopic-assisted high ligation of the hernia sac via the scrotum involves the following steps: First, a 5-8 mm transverse incision is made in the scrotum on the surgical side. Under laparoscopic guidance, a 5 mm laparoscopic lens is inserted into the hernia sac cavity through the internal incision. The hernia sac is guided and positioned to the bottom of the hernia sac, and then pushed out of the body through the scrotal incision. The tissues surrounding the hernia sac are loosened and dissected. The hernia sac is lifted with a vascular clamp to the level of the extraperitoneal fat layer, and then the hernia sac is ligated high with silk sutures.
[0003] Conventional external high ligation of the hernia sac typically involves double-stranded sutures or loops. Exposure of the hernia sac requires a surgical assistant, and retractors are used during the procedure to expose the sac wall. This method relies heavily on the surgeon's experience and can easily lead to an enlarged surgical wound and unnecessary damage; its drawbacks are obvious. Existing traditional snares only have a coil at the tip, limiting them to simple ligation. They are unusable for deep structures, i.e., those surrounded by tissue at the ligation site. Therefore, a novel external hernia sac ligation snare is proposed. By designing a ring-shaped retractor, the tip of the new snare is placed over the hernia sac during the procedure, and the "ring-shaped retractor" opens the surrounding tissue at the ligation site to facilitate exposure of the hernia sac, avoid collateral damage, and achieve satisfactory high ligation of the hernia sac. Utility Model Content
[0004] To address the problems in existing technologies, this utility model provides a novel snare for external hernia sac ligation. By designing a ring-shaped retractor, the head end of the novel snare is placed around the hernia sac during operation, and the "ring-shaped retractor" is used to open the tissue around the ligation site to facilitate exposure of the hernia sac, avoid collateral damage, and achieve a satisfactory high ligation effect of the hernia sac.
[0005] The technical solution adopted by this utility model to solve its technical problem is a novel external hernia sac ligation snare, including a connecting rod. One end of the connecting rod has a cavity. A pulley is rotatably installed inside the cavity. Two pulleys are arranged opposite each other. A second sliding groove is opened at the top of the connecting rod. A second slider is movably installed inside the second sliding groove. An installation cavity is opened at the end of the second slider near the pulley. The installation cavity is divided into two parts by a partition. The two installation cavities are used for the insertion of the two ends of the annular expander.
[0006] By adopting the above technical solution, the operator inserts both ends of the annular retractor into the cavity from one end of the connecting rod, and can insert them into the two mounting cavities of the second slider respectively. Then, by letting the second slider slide in the second groove, the size of the inner ring of the annular retractor is adjusted so that the ligation site is fully exposed, avoiding cutting and damaging the surrounding normal tissue.
[0007] Specifically, the top of both ends of the annular expander are provided with insertion holes for the insertion of plugs. There are two plugs, which are movably installed on the top of the second slider.
[0008] By adopting the above technical solution, the plug can be inserted into the top holes at both ends of the annular expander, thereby fixing the annular expander.
[0009] Specifically, a splitting post is fixedly installed between the two pulleys, and a splitting head is fixedly connected to the side of the splitting post near the second slider. The splitting head is arranged in a triangular structure.
[0010] By adopting the above technical solution, the pulley can facilitate the contraction of the annular expander, and the split head can separate the two ends of the annular expander when it expands.
[0011] Specifically, the splitting head has a second through hole inside, and the second slider has a first through hole inside. The first and second through holes are used for the two ends of the coil to pass through.
[0012] By adopting the above technical solution, the setting of the first and second perforations facilitates the positioning and shrinking of the coil.
[0013] Specifically, one end of the connecting rod is fixedly connected to one end of the handle, and a first sliding groove is provided at the top of the handle, with a first slider movably installed inside the first sliding groove.
[0014] By adopting the above technical solution, pushing the first slider to slide in the first groove can drive the coil to contract.
[0015] Specifically, one side of the first slider is fixedly connected to both ends of the coil, and the coil is located in the inner ring of the annular expander.
[0016] By adopting the above technical solution, the inner ring of the annular retractor is a coil that can be contracted and ligated, and the outer ring of the annular retractor is an elastic ring that can open up the surrounding tissues and expose the hernia sac without obstructing the field of vision. The coil is easy to operate.
[0017] The beneficial effects of this utility model are:
[0018] (1) The novel external hernia sac ligation snare described in this utility model inserts both ends of the annular retractor into the cavity from one end of the connecting rod, and can be inserted into the two mounting cavities of the second slider respectively. Then, the size of the inner ring of the annular retractor is adjusted by allowing the second slider to slide in the second groove, so that the ligation site is fully exposed. This can avoid cutting and damaging the surrounding normal tissue, and can open up the surrounding tissue to expose the hernia sac without obstructing the field of vision. The coil is easy to operate.
[0019] (2) The novel external hernia sac ligation snare described in this utility model can also pull out the plug after damage. The annular retractor can be directly pulled out from one end of the connecting rod for disassembly and replacement, which improves the practicality of the device. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the planar structure of the present invention;
[0023] Figure 3 This is a schematic diagram of the annular expander structure of this utility model;
[0024] In the diagram: 1. Handle; 2. First slide groove; 3. Slider; 4. Connecting rod; 5. Second slide groove; 6. Second slider; 7. Plug; 8. Cavity; 9. Pulley; 10. Splitting post; 11. Splitting head; 12. Partition; 13. First through hole; 14. Mounting cavity; 15. Socket; 16. Annular expander; 17. Coil. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] To achieve a satisfactory high ligation effect of the hernia sac, as one embodiment of this utility model, such as... Figures 1-3 As shown, the present invention discloses a novel external hernia sac ligation snare, comprising a connecting rod 4, one end of which has a cavity 8, and a pulley 9 is rotatably mounted inside the cavity 8. Two pulleys 9 are arranged opposite each other. A second sliding groove 5 is provided at the top of the connecting rod 4, and a second slider 6 is movably mounted inside the second sliding groove 5. An installation cavity 14 is provided at the end of the second slider 6 near the pulley 9. The installation cavity 14 is divided into two parts by a partition 12, and the two installation cavities 14 are used for the insertion of the two ends of the annular expander 16.
[0027] When in use, the annular retractor 16 is annular in appearance and can be made of flexible plastic ring. The edges are wide and smooth. The operator inserts both ends of the annular retractor 16 into the cavity 8 from one end of the connecting rod 4, and can also insert them into the two mounting cavities 14 of the second slider 6 respectively. Then, the size of the inner ring of the annular retractor 16 is adjusted by sliding the second slider 6 in the second groove 5, so that the ligation site is fully exposed and the surrounding normal tissue is avoided from being cut or damaged.
[0028] This utility model also includes that the top of both ends of the annular expander 16 are provided with insertion holes 15, the insertion holes 15 are used for the insertion of the plugs 7, and there are two plugs 7, which are respectively movably installed on the top of the second slider 6.
[0029] When in use, the plug 7 can be inserted into the top holes 15 at both ends of the annular expander 16 to fix the annular expander 16.
[0030] The present invention also includes a splitting post 10 fixedly installed between the two pulleys 9, and a splitting head 11 fixedly connected to the side of the splitting post 10 near the second slider 6, the splitting head 11 being arranged in a triangular structure.
[0031] In use, the pulley 9 facilitates the retraction of the annular expander 16, and the splitting head 11 allows the two ends of the annular expander 16 to separate when it expands.
[0032] The present invention also includes a second through hole 18 inside the splitting head 11 and a first through hole 13 inside the second slider 6, the first through hole 13 and the second through hole 18 being used for the two ends of the coil 17 to pass through.
[0033] In use, the first perforation 13 and the second perforation 18 facilitate the positioning and retraction of the coil 17.
[0034] This utility model also includes that one end of the connecting rod 4 is fixedly connected to one end of the handle 1, and a first sliding groove 2 is provided at the top of the handle 1, and a first slider 3 is movably installed inside the first sliding groove 2.
[0035] When in use, pushing the first slider 3 to slide in the first groove 2 can cause the coil 17 to contract.
[0036] The present invention also includes that one side of the first slider 3 is fixedly connected to both ends of the coil 17, and the coil 17 is disposed in the inner ring of the annular expander 16.
[0037] When in use, the inner ring of the annular retractor 16 is a coil 17 that can be contracted and ligated, and the outer ring of the annular retractor 16 is an elastic ring that can open up the surrounding tissues and expose the hernia sac without obstructing the field of vision. The coil 17 is easy to operate.
[0038] In use, the two ends of the annular expander 16 are inserted into the cavity 8 from one end of the connecting rod 4, and can be inserted into the two mounting cavities 14 of the second slider 6 respectively. The plug 7 can be inserted into the insertion holes 15 at the top of both ends of the annular expander 16 to fix the annular expander 16. Then, the size of the inner ring of the annular expander 16 can be adjusted by sliding the second slider 6 in the second slide groove 5. Sliding the second slider 6 backward can retract the annular expander 16 into the cavity 8, thereby reducing the inner ring of the annular expander 16. Pushing it forward can push the annular expander 16 out of the cavity 8, thereby expanding the inner ring of the annular expander 16. This component can be used to separate the surrounding tissue of the snare placement site, so that the ligation site is fully exposed and the surrounding normal tissue is avoided from being cut and damaged.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A novel external hernia sac ligation snare, comprising a connecting rod (4), characterized in that, One end of the connecting rod (4) has a cavity (8), and a pulley (9) is rotatably installed inside the cavity (8). Two pulleys (9) are arranged opposite each other. The top of the connecting rod (4) has a second sliding groove (5), and a second slider (6) is movably installed inside the second sliding groove (5). The end of the second slider (6) near the pulley (9) has an installation cavity (14). The installation cavity (14) is divided into two parts by a partition (12). The two installation cavities (14) are used for the insertion of the two ends of the annular expander (16).
2. The novel external hernia sac ligation snare according to claim 1, characterized in that, The annular expander (16) has insertion holes (15) at both ends. The insertion holes (15) are used for inserting the plugs (7). There are two plugs (7), and the two plugs (7) are respectively movably installed on the top of the second slider (6).
3. The novel external hernia sac ligation snare according to claim 1, characterized in that, A splitting column (10) is fixedly installed between the two pulleys (9). A splitting head (11) is fixedly connected to the side of the splitting column (10) near the second slider (6). The splitting head (11) is arranged in a triangular structure.
4. The novel external hernia sac ligation snare according to claim 3, characterized in that, The splitting head (11) has a second through hole (18) inside, and the second slider (6) has a first through hole (13) inside. The first through hole (13) and the second through hole (18) are used for the two ends of the coil (17) to pass through.
5. The novel external hernia sac ligation snare according to claim 1, characterized in that, One end of the connecting rod (4) is fixedly connected to one end of the handle (1), and the top of the handle (1) is provided with a first sliding groove (2), and a first slider (3) is movably installed inside the first sliding groove (2).
6. A novel snare for external hernia sac ligation according to claim 5, characterized in that, One side of the first slider (3) is fixedly connected to both ends of the coil (17), which is located in the inner ring of the annular expander (16).