A flat, low dead volume one-way valve
By using an offset disconnected annular guide groove and pad support structure for the one-way valve design, the problems of large axial dimension, large dead volume and poor sealing of the existing one-way valve are solved. It achieves flattening, small dead volume and high sealing performance, and is suitable for the integrated design of microfluidic chips and infusion lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING HEIYU XINGYUN MEDICAL TESTING LABORATORY CO LTD
- Filing Date
- 2026-06-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing one-way valves in microfluidic chips and portable devices suffer from problems such as large axial dimensions, large dead volume, complex structure, poor sealing, and high cost, making it difficult to achieve flattening, miniaturization, and ease of manufacturing.
It adopts an offset discontinuous annular guide channel with pad support structure, combined with medical plastic cap end and elastic diaphragm, and is sealed by bonding or welding. It eliminates metal parts and simplifies into three parts, achieving ultra-low dead volume and high sealing performance.
It achieves a flattened, small dead volume, fast response, and high sealing performance for one-way valves, making it suitable for microfluidic chips and infusion lines, reducing liquid retention, and suitable for mass production.
Smart Images
Figure CN122399223A_ABST