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.

CN121443219APending Publication Date: 2026-01-30CASING LIGHT TECHNOLOGY CO LTD
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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

Technical Problem

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.

Method used

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.

Benefits of technology

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.

✦ Generated by Eureka AI based on patent content.

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Abstract

A device for indicating entry of a needle into a body cavity, a conduit or a blood vessel of a human or non-human animal has a pressure sensor configured, in use, to be in fluid communication with a pinhole of the needle; and a selectively activated indicator. The device is configured to activate the indicator when a pressure acting on the pressure sensor reaches or is above a minimum pressure threshold, where the minimum pressure threshold is about 25 cmH2O.
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