一种脂肪移植推注钝针
By setting an indicator sleeve and a hand-tightening bolt on the blunt needle for fat grafting, the problem of doctors having difficulty judging the insertion depth is solved, resulting in a safer fat grafting surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING DIANZHI CHENGJIN MEDICAL TECHNOLOGY SERVICE CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-07-17
AI Technical Summary
During fat grafting surgery, doctors may find it difficult to visually determine the maximum depth to which a blunt needle can be inserted into the tissue, which could lead to excessive insertion, damage to important blood vessels or nerves, and increase the risk of surgery.
A blunt needle for fat grafting injection was designed, equipped with an indicator protective sleeve and a hand-tightening screw, which allows doctors to set the maximum safe depth before surgery and visually judge the insertion depth by fixing the indicator protective sleeve to the blunt needle body.
It effectively reduces complications caused by improper insertion depth, improving surgical safety and treatment outcomes.
Smart Images
Figure CN224506027U_ABST
Abstract
Claims
1. A blunt needle for fat grafting injection, characterized in that, The device includes a blunt needle structure (1), which includes a blunt needle body (101). The outer surface of the blunt needle body (101) is provided with an indicator protection part (2). The indicator protection part (2) includes an indicator protection sleeve (201) sleeved on the outer surface of the blunt needle body (101). The indicator protection sleeve (201) is provided with a threaded hole. The threaded hole is connected to a hand-tightening bolt (202). The end of the hand-tightening bolt (202) is fixedly connected to a protective pad (203), and the protective pad (203) is in contact with the outer surface of the blunt needle body (101).
2. A fat grafting bolus injection blunt needle according to claim 1, wherein, The protective pad (203) is made of medical rubber or medical silicone.
3. A fat grafting bolus injection blunt needle according to claim 2, wherein, The indicator protective sleeve (201) is provided with auxiliary components.
4. A fat grafting bolus injection blunt needle according to claim 3, wherein, The auxiliary component includes an indicator plate (204) that is slidably connected to the top of the indicator protective sleeve (201). The indicator plate (204) has an elongated opening (205), and the inner wall of the elongated opening (205) is inserted and connected to a hand-tightening bolt (202).
5. A fat grafting bolus injection blunt needle according to claim 4, wherein, A side plate (206) is fixedly connected to one side of the indicator plate (204), and the side plate (206) is in contact with the side of the indicator protective sleeve (201).
6. A fat grafting bolus injection blunt needle according to claim 5, wherein, One end of the blunt needle body (101) is fixedly connected to a needle holder (102).
7. A fat grafting bolus injection blunt needle according to claim 6, wherein, The blunt needle body (101) has a needle hole (103) on the side away from the needle seat (102), and the needle hole (103), the blunt needle body (101) and the needle seat (102) are interconnected.
8. A fat grafting bolus injection blunt needle according to claim 7, wherein, The edges of the pinhole (103) are rounded.
9. A fat grafting bolus injection blunt needle according to claim 8, wherein, The outer surface of the blunt needle body (101) is coated with a protective coating.
10. A fat grafting bolus injection blunt needle according to claim 9, wherein, The protective coating is a polytetrafluoroethylene coating.