Indicating device for access to body cavity, pipeline or blood vessel
By using a pressure sensor and a selectively activated indicator device, the problem of inaccurate needle position indication in existing technologies is solved, improving the success rate and safety of catheter insertion, and making it suitable for various pressure environments.
Patent Information
- Application Number
- CN202480034014.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-12-04
- Filing Date
- 2024-03-21
- Publication Date
- 2026-01-30
AI Technical Summary
Existing needle position indicators are not reliable enough in clinical applications, are costly, and are not suitable for use in high-pressure environments, resulting in a high catheter insertion failure rate and an increased risk of vascular injury.
Employing a pressure sensor and a selectively activated indicator device, a visual or auditory indicator is activated when a pressure threshold is detected when the needle is in fluid communication with the needle hole, ensuring that the needle is correctly inserted into a body cavity, tube, or blood vessel.
It improves the success rate of catheter insertion, reduces the risk of vascular injury, and is suitable for various pressure environments, especially in battlefield or emergency medical scenarios, where it reliably indicates needle position.
Smart Images

Figure CN121443219A_ABST