Cutting line for cutting subcutaneous scar contracture zone
By designing the cutting line body surface with axially arranged cutting protrusions, combined with straight or curved needles, the problems of high cost and complex operation in the existing technology are solved, and efficient cutting and release of subcutaneous scar contracture bands are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XINRONGXUAN TRADING CO LTD
- Filing Date
- 2025-01-03
- Publication Date
- 2026-04-24
AI Technical Summary
Existing techniques are costly and complex to use when treating scar contractures after burns, and are difficult to effectively loosen subcutaneous scar contractures.
Design a cutting line body with first and second cutting protrusions arranged axially on the surface for cutting subcutaneous scar contracture bands, and combine it with the use of straight or curved needles to facilitate needle insertion and pulling cutting.
It achieves efficient cutting and release of subcutaneous scar contractures, with simple operation and low cost, thus improving cutting efficiency.
Smart Images
Figure CN224155729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting line technology, and in particular to a cutting line for cutting subcutaneous scar contracture bands. Background Technology
[0002] Scarring and scar contractures following burns remain a serious problem for burn survivors. These patients experience localized discomfort and limited mobility even after reconstructive surgery. Studies show that scar contractures are most common at joints after burns, as patients tend to keep joints in a flexed and adducted position to relieve pain. This leads to shortening of scar tissue and scar deformities. These joint contractures have a profound impact on a patient's ability to walk, perform fine motor tasks, and complete daily activities such as eating, bathing, and grooming. Large studies have shown that 20% to 40% of burn survivors still have scar contractures even 5 years after injury. The residual tightness and limited range of motion in long-term burn survivors, whose scars are considered mature, are typically associated with subcutaneous connective tissue bands (contractile bands) rather than the epidermal layer of the scarred skin. Current techniques rely on surgical methods to treat subcutaneous scar contracture bands, which are costly and cumbersome. Summary of the Invention
[0003] To solve the above-mentioned technical problems, this utility model provides a cutting line for cutting subcutaneous scar contracture bands, which can cut and loosen subcutaneous scar contracture bands, and is simple to operate and low in cost.
[0004] To solve the above problems, the present invention adopts the following technical solution:
[0005] The present invention provides a cutting line for cutting subcutaneous scar contracture bands, comprising a cutting line body, wherein a plurality of cutting structures are arranged side by side along the circumferential direction on the outer surface of the cutting line body, and the cutting structures include a plurality of first cutting protrusions arranged in a straight line along the axial direction.
[0006] In this method, the cutting suture body is inserted into the subcutaneous scar contracture zone, and then the cutting suture body is pulled left and right so that the first cutting protrusions on the outer surface of the cutting suture body, which are arranged in a straight line along the axial direction, cut the subcutaneous scar contracture zone.
[0007] Preferably, a second cutting protrusion is provided between two adjacent first cutting protrusions, and the first cutting protrusions and the second cutting protrusions are staggered.
[0008] The first cutting protrusion works in conjunction with the second cutting protrusion to increase the cutting efficiency of the cutting suture body on the subcutaneous scar contracture zone, while also increasing the cutting properties of the cutting suture body.
[0009] Preferably, the first cutting protrusion and the second cutting protrusion have the same size, and both the first cutting protrusion and the second cutting protrusion are in the shape of an equilateral triangular pyramid.
[0010] Preferably, one end of the cutting line body is provided with a straight needle.
[0011] Straight needles allow for easy threading and suture placement close to the skin.
[0012] Preferably, one end of the cutting line body is provided with a bent needle.
[0013] Curved needles make it easier to thread the needle under soft tissue.
[0014] Preferably, the curvature of the bent needle is 130 to 150 degrees.
[0015] Preferably, the material of the cutting wire body is PDO, PCL, PLA, PP, or PA.
[0016] The beneficial effects of this utility model are: when the cutting suture body is inserted into the scar contracture zone under the skin, and then the cutting suture body is pulled left and right, the first cutting protrusion on the outer surface of the cutting suture body can cut the scar contracture zone under the skin; the first cutting protrusion and the second cutting protrusion cooperate to increase the cutting efficiency of the cutting suture body on the scar contracture zone under the skin, and at the same time increase the cutting properties of the cutting suture body. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;
[0019] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;
[0020] Figure 4 yes Figure 1 A magnified view of a section at point C.
[0021] In the diagram: 1. Cutting line body, 11. First cutting protrusion, 12. Second cutting protrusion, 2. Straight needle, 3. Curved needle. Detailed Implementation
[0022] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.
[0023] Example: This example illustrates a cutting line used for cutting subcutaneous scar contracture bands, such as... Figures 1 to 4As shown, it includes a cutting line body 1. The outer surface of the cutting line body 1 is provided with multiple cutting structures arranged in parallel along the circumference. Each cutting structure includes multiple first cutting protrusions 11 arranged in a straight line along the axial direction. A second cutting protrusion 12 is also provided between two adjacent first cutting protrusions 11. The first cutting protrusions 11 and the second cutting protrusions 12 are arranged alternately.
[0024] The first cutting protrusion 11 and the second cutting protrusion 12 have the same size, and both the first cutting protrusion 11 and the second cutting protrusion 12 are in the shape of an equilateral triangular pyramid.
[0025] One end of the cutting wire body 1 is provided with a straight needle 2 or a curved needle 3, and the curvature of the curved needle 3 is 130 degrees to 150 degrees.
[0026] The material of the cutting wire body 1 is PDO, PCL, PLA, PP, or PA.
[0027] In this procedure, the suture body is inserted subcutaneously using either a straight or curved needle. The suture body is then pulled left and right to engage the first and second cutting protrusions on its outer surface to cut the subcutaneous scar contracture. A straight needle allows for close-to-the-skin insertion, while a curved needle facilitates insertion under soft tissue.
Claims
1. A cutting line for cutting subcutaneous scar contracture bands, characterized in that: It includes a cutting line body (1), and the outer surface of the cutting line body (1) is provided with multiple cutting structures arranged in a circumferential direction. The cutting structure includes multiple first cutting protrusions (11) arranged in a straight line along the axial direction.
2. The cutting line for cutting subcutaneous scar contracture bands according to claim 1, characterized in that: A second cutting protrusion (12) is provided between two adjacent first cutting protrusions (11), and the first cutting protrusions (11) and the second cutting protrusions (12) are arranged alternately.
3. The cutting line for cutting subcutaneous scar contracture bands according to claim 2, characterized in that: The first cutting protrusion (11) and the second cutting protrusion (12) have the same size, and both the first cutting protrusion (11) and the second cutting protrusion (12) are in the shape of an equilateral triangular pyramid.
4. A cutting line for cutting subcutaneous scar contracture bands according to claim 1, 2, or 3, characterized in that: One end of the cutting wire body (1) is provided with a straight needle (2).
5. A cutting line for cutting subcutaneous scar contracture bands according to claim 1, 2, or 3, characterized in that: The cutting wire body (1) has a bent needle (3) at one end.
6. A cutting line for cutting subcutaneous scar contracture bands according to claim 5, characterized in that: The arc of the bent needle (3) is 130 to 150 degrees.
7. A cutting line for cutting subcutaneous scar contracture bands according to claim 1, 2, or 3, characterized in that: The material of the cutting wire body (1) is PDO, PCL, PLA, PP, or PA.