一种用于微创腱鞘松解术的器械
By designing a multi-needle minimally invasive tendon sheath release instrument and combining it with ultrasound guidance, the problems of high operational difficulty and large wounds in tendon sheath treatment using small needle knives have been solved, achieving precise adjustment and rapid recovery of the tendon sheath.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUN YAT SEN MEMORIAL HOSPITAL SUN YAT SEN UNIV
- Filing Date
- 2025-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
Current small needle knife treatments for tendon sheath injuries in the hand lack visual guidance, making precise operation difficult and prone to accidental injury to tendons and blood vessels, leading to hand function impairment and health risks. In addition, the wounds are large and the recovery efficiency is low.
An instrument comprising a first, second, and third medical needle was designed. The first and second needles are straight, while the third needle is arc-shaped, equipped with a U-shaped notch and an inclined opening. The handle of the third needle is connected to a cutting line. The instrument is used for minimally invasive tendon sheath release under ultrasonic guidance, and the position of the tendon sheath is adjusted by the cooperation of multiple needles.
It improves the visualization and guidance of surgery and the ease of operation, reduces the risk of damage to tendons and blood vessels, and enables minimally invasive surgery and rapid recovery.
Smart Images
Figure CN224505526U_ABST
Abstract
Claims
1. An apparatus for minimally invasive tenolysis comprising a first medical needle (100), a second medical needle (200) and a third medical needle (300), the needle body of the first medical needle (100) and the second medical needle (200) are straight, characterized in that, The third medical needle (300) is arc-shaped. The first medical needle (100) includes a first needle tip (120), and the tip of the first needle tip (120) has a U-shaped notch (121) which is shovel-shaped. The second medical needle (200) includes a second needle tip (220), and the tip of the second needle tip (220) is an inclined opening (221). The tail of the third medical needle (300) is provided with a third needle handle (310), and the third needle handle (310) is connected to the cutting line (400).
2. An instrument for minimally invasive tenolysis according to claim 1, wherein, The first medical needle (100) has a first needle handle (110) at its tail end, and the diameter of the first needle handle (110) is slightly larger than that of the needle body of the first medical needle (100).
3. An instrument for minimally invasive tenolysis according to claim 2, wherein, The outer wall of the first needle handle (110) is provided with an arc-shaped anti-slip groove (111), which is used to prevent the hand from slipping. The inner wall of the first medical needle (100) is a hollow structure.
4. The instrument for minimally invasive tenolysis according to claim 1, characterized in that, The tail end of the second medical needle (200) is provided with a second needle handle (210). The diameter of the second needle handle (210) is slightly larger than that of the needle body of the second medical needle (200). The outer wall of the second needle handle (210) is provided with an annular protrusion (211). The inner wall of the second medical needle (200) is a hollow structure.
5. The instrument for minimally invasive tenolysis according to claim 1, characterized in that, The tail of the third needle handle (310) is hemispherical, and the tail of the third needle handle (310) is connected to the cutting line (400).
6. An instrument for minimally invasive tenolysis according to claim 5, wherein, The third medical needle (300) has a third needle tip (340) at its tip end. The third needle tip (340) is conical. The needle body of the third medical needle (300) has a bent part (330) on the side near the third needle tip (340). The bent part (330) is an elastic element and is used to shape and adjust the curvature value.