防血液外溢的自动回缩式留置针
By designing limiting and retraction components, the problem of needle core and catheter rotation during indwelling needle puncture is solved, achieving a high success rate of puncture and stable connection, reducing needle bending and blood leakage, and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU XINKANGDAO MEDICAL TECH CO LTD
- Filing Date
- 2023-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
During the puncture process, the needle core and catheter of a traditional indwelling needle are prone to relative rotation, which reduces the success rate of puncture, increases patient pain, and poses a risk of needle bending and blood vessel perforation.
The circumferential movement of the mounting shell and mounting base is restricted by the limiting components. The cooperation of the limiting blocks and slots ensures that the needle and catheter are fixed. The retraction component enables the needle to retract automatically to prevent blood from spilling out, and the anti-backflow component isolates the blood flow.
It improves the success rate of indwelling needle insertion, reduces needle bending and blood vessel puncture, alleviates patient pain, prevents blood leakage, and provides a stable connection that is easy to disassemble.
Smart Images

Figure CN116474209B_ABST