A tissue separation device for spermatic vein ligation
By designing a tissue separation device for varicocelectomy, using medical-grade hard plastic pads and silicone soft rings, the problem of inaccurate separation and damage caused by traditional devices in varicocelectomy is solved, achieving safe and convenient surgical field exposure and tissue protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOUTHEAST UNIV
- Filing Date
- 2025-07-28
- Publication Date
- 2026-05-26
AI Technical Summary
In current spermatic vein ligation procedures, traditional retractors and forceps are difficult to use for precise separation in complex vascular environments and may cause tissue damage and accidental injury. Traditional cannula devices are cumbersome to operate and have poor exposure effects.
A tissue separation device for spermatic vein ligation surgery was designed, which adopts a structure of a central pad, a movable soft ring, and a hook. The pad is made of medical-grade hard plastic, the soft ring is made of medical-grade silicone, and the hook has a rounded corner design, which can stably fix the external fascia of the spermatic cord and the cremaster muscle to avoid scratches. The soft ring can be stored in the central groove to save space.
This allows for full exposure of the surgical field during surgery, avoids tissue damage, improves surgical safety and ease of operation, and reduces medical costs.
Smart Images
Figure CN224269377U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tissue separation device during spermatic vein ligation surgery, belonging to the field of male infertility surgery and medical devices. Background Technology
[0002] Varicocele ligation is a core surgical procedure in andrology for treating varicocele. The spermatic cord region has a complex network of blood vessels, with a tortuous pampiniform plexus that is closely adjacent to important structures such as the vas deferens and cremaster muscle. During surgery, the vein walls are thin and fragile, making them prone to rupture and bleeding during dissection. Blood extravasation quickly obscures the surgical field, increasing the difficulty of locating the bleeding point and potentially causing injury to arteries, vas deferens, and other tissues due to blind manipulation, leading to postoperative complications such as testicular atrophy and hydrocele. Traditional surgery involves repeated clamping and ligation for hemostasis, using sutures to fix the external fascia of the spermatic cord and the cremaster muscle, which can easily cause excessive tissue damage and prolong the operation time. Therefore, surgical aids that can clearly expose the surgical field and precisely protect surrounding tissues are crucial for improving surgical safety and treatment outcomes.
[0003] Currently, traditional retractors and forceps are commonly used to expose the surgical field and separate tissues during spermatic vein ligation. CN211094346U discloses a retractor for microsurgical spermatic vein ligation, which uses a special double-headed structure to assist in separating the spermatic cord from surrounding tissues. However, in complex vascular environments, its ability to precisely separate delicate tissues is limited, and it lacks protection against accidental injury. CN221786501U discloses forceps for fixing and pulling the spermatic cord, using a toothed clamping half-tube to achieve traction. However, the toothed structure may damage the spermatic cord tissue and cannot effectively avoid accidental injury to surrounding blood vessels and lymphatic vessels. CN214966830U discloses a lifting and protective kit for male spermatic vein ligation surgery, which uses a marking cannula to distinguish tissues. However, in actual operation, the installation and adjustment of the cannula is cumbersome, and the effect on surgical field exposure is insufficient for complex surgeries. Therefore, this paper proposes a tissue separation device for spermatic vein ligation surgery to address the above problems. Utility Model Content
[0004] This invention provides a tissue separation device for spermatic vein ligation surgery, which can achieve the goals of sufficient exposure during surgery, convenient use, and safety and reliability.
[0005] The present invention adopts the following technical solution:
[0006] The present invention discloses a tissue separation device for varicocelectomy, comprising an intermediate pad having a central groove for accommodating a movable soft ring; and a hook portion being provided on the other end face of the intermediate pad opposite to the groove.
[0007] The tissue separation device for varicocele ligation described in this utility model has a rectangular intermediate pad that extends along the length of the intermediate pad along the central groove. One end of the movable soft ring is fixed to the inner wall of the central groove, and the other end is a movable closed end.
[0008] The tissue separation device for varicocele ligation described in this utility model includes a hook part comprising hook one and hook two; hook one and hook two are arranged on the other end face of the intermediate pad opposite to the central groove; hook one and hook two are respectively located on the two side edges of the end face.
[0009] The tissue separation device for varicocele ligation described in this utility model has hook one and hook two as downwardly curved hook structures; hook one and hook two are arranged axially symmetrically.
[0010] The tissue separation device for varicocelectomy described in this utility model has rounded or arc-shaped edges and corners on the edges and corners of the intermediate pad and the hook portion.
[0011] The tissue separation device for varicocelectomy described in this utility model uses a movable soft ring made of medical-grade silicone.
[0012] Beneficial effects
[0013] The tissue separation device for varicocele ligation provided by this utility model features rounded corners and arc edges on the pads and hooks, which can fully conform to the tissue and avoid scratches. The entire device is made of medical-grade hard plastic (polytetrafluoroethylene PTFE), which is both durable and safe, while also ensuring the rigidity of the main body.
[0014] The tissue separation device for varicocelectomy provided by this utility model has a movable soft ring made of medical silicone material, which has good biocompatibility, is flexible in operation during surgery, and its softness avoids damage to blood vessels.
[0015] Furthermore, the bilateral hook technique allows for non-invasive fixation of the external spermatic fascia and cremaster muscle during surgery, fully exposing the surgical area and avoiding the need for sutures as in previous procedures. The central recess allows for the storage of the movable soft coil when the device is still sealed, saving space and protecting the silicone coil, facilitating storage and transportation, and reducing losses outside of surgery. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the tissue separation device for spermatic vein ligation surgery according to this utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of the tissue separation device for spermatic vein ligation surgery according to this utility model;
[0018] Figure 3 This is a top view schematic diagram of the tissue separation device for spermatic vein ligation surgery according to this utility model;
[0019] Figure 4 This is a side view of the tissue separation device used in spermatic vein ligation surgery according to this utility model.
[0020] Figure 5 This is a schematic diagram of the oblique bottom view of the tissue separation device for spermatic vein ligation surgery according to this utility model;
[0021] In the diagram: 1. Gasket; 2. Movable soft ring; 3. Hook 1; 4. Hook 2; 5. Center groove. Detailed Implementation
[0022] To make the objectives and technical solutions of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] like Figures 1 to 5 As shown: A tissue separation device for varicocele ligation includes an intermediate pad 1, a movable soft ring 2, a hook one 3, a hook two 4, and a central groove 5.
[0024] A further intermediate pad 1 is inserted below the spermatic cord to separate the spermatic cord from the surrounding tissue and pull out the spermatic cord. Hooks 1 and 2 on both sides work together to fix the separated spermatic cord fascia and cremaster muscle.
[0025] Further movable soft coil 2 is used to separate the pampiniform plexus and the vas deferens, testicular artery, nerves, etc. below it, to fully expose the varicose spermatic veins that need to be ligated.
[0026] The intermediate pad 1, hook 1 3, and hook 2 4 are made of medical-grade hard plastic (PTFE) in a single molded piece, which improves the rigidity and durability of the main body, allowing the pad to easily pass under the spermatic cord. The rounded corners and curved edges effectively prevent damage to patient tissue during surgery, while the safe properties of the material also protect the patient.
[0027] Further hooks 3 and 4 are located at both ends of the intermediate pad 1, and are axially symmetrical, so as to stably hold the external spermatic cord fascia and cremaster muscle.
[0028] The further central groove 5 can store the movable soft ring 2 when the device is not opened, which can save space and protect the silicone soft ring, making it convenient for storage and transportation and reducing losses outside of surgery.
[0029] Furthermore, the intermediate gasket 1 is 65mm long, 18mm wide, and 5mm high. The central groove 5 is centered on the top surface of the 65mm*18mm groove, which is 55mm long, 12mm wide, and 2mm deep, with a corner radius of 6mm.
[0030] Furthermore, the movable soft coil 2 is 52mm long, 12mm wide, and 2mm thick, with a length slightly smaller than the central groove 5, making it easy to remove during use. It is made of medical-grade silicone, which has good biocompatibility and allows for flexible operation during surgery.
[0031] Furthermore, hook 3 and hook 4 are cut from circles with a diameter of 7mm and intersected with the pad. The outer interface is rounded and polished, making it smooth and flat, and less likely to damage the patient's tissue.
[0032] Its overall structure effectively separates the spermatic cord from surrounding tissues, blood vessels from the underlying fascia, and the cremaster muscle through a two-layer structure; at the same time, hooks fix the external fascia of the spermatic cord and the cremaster muscle, avoiding suture fixation in traditional surgery and protecting patients from secondary damage; all materials are durable and highly biocompatible, and can be reused after high-temperature sterilization, reducing medical costs.
[0033] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A tissue separation device for spermatic vein ligation surgery, characterized in that: It includes an intermediate pad (1) with a central groove (5) for accommodating a movable soft ring (2); a hook portion is provided on the other end face of the intermediate pad (1) opposite to the groove (5).
2. The tissue separation device for spermatic vein ligation according to claim 1, characterized in that: The intermediate gasket (1) is a rectangular structure that extends along the length of the intermediate gasket (1) along the central groove (5) inside the intermediate gasket (1); one end of the movable soft ring (2) is fixed to the inner wall of the central groove (5), and the other end is a movable closed end.
3. The tissue separation device for spermatic vein ligation according to claim 1 or 2, characterized in that: The hook part includes hook one (3) and hook two (4); hook one (3) and hook two (4) are arranged on the other end face of the intermediate pad (1) relative to the central groove (5); hook one (3) and hook two (4) are respectively located on the two side edges of the end face.
4. The tissue separation device for spermatic vein ligation according to claim 3, characterized in that: The hook one (3) and hook two (4) are both downwardly curved hook structures; hook one (3) and hook two (4) are arranged symmetrically along an axis.
5. The tissue separation device for spermatic vein ligation according to claim 1, characterized in that: The edges and corners of the intermediate pad (1) are rounded or arc-shaped; the edges and corners of the hook are rounded or arc-shaped.
6. The tissue separation device for spermatic vein ligation according to claim 1, characterized in that: The movable soft ring (2) is made of medical-grade silicone.