An immunodetection device for chromatographic test strips
By integrating sampling and detection into an immunoassay device, the problems of low efficiency and blood dripping caused by separating sampling and detection in existing technologies have been solved, achieving efficient and safe blood collection and testing.
CN122283121APending Publication Date: 2026-06-26THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
- Filing Date
- 2026-04-10
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
Existing immunoassay devices separate the sampling and testing processes, resulting in low sampling efficiency and the inconvenience of blood dripping.
Method used
Design an integrated sampling and detection immunoassay device, comprising a bottom shell, a cover plate, a sample dispensing port, an observation port, a slide plate, and a transmission assembly. The slide plate drives the blood collection needle to penetrate the sample dispensing port for sampling, and the sealing plate and piston chamber ensure effective blood dripping and device safety.
Benefits of technology
This improves testing efficiency, avoids blood dripping and external contamination, and ensures the safety and convenience of blood collection.
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Smart Images
Figure CN122283121A_ABST
Abstract
This invention discloses an immunoassay device for chromatographic test strips, belonging to the field of immunoassay technology. It includes a bottom shell and a cover plate covering the bottom shell. An immunoassay strip is fixedly installed inside the bottom shell. The cover plate has a sample application port and an observation port. The cover plate exposes the immunoassay strip at the sample application port and observation port. A cavity is provided between the sample application port and the observation port in the cover plate, and the cavity is connected to the sample application port through a through hole. A sliding plate is slidably connected inside the cavity. A track is fixedly connected to the top wall of the cavity, and a pillowcase is slidably installed on the track. A blood collection needle is fixedly engaged inside a needle sleeve. The sliding plate and the needle sleeve are connected through a transmission component. Sliding the sliding plate allows the needle sleeve to slide through the through hole into the sample application port via the transmission component. A groove is provided on the outer wall of the cover plate, and an operating plate is fixedly connected to the sliding plate extending beyond the groove. The operating plate always covers the groove. This invention improves detection efficiency by integrating sampling and detection into one unit.
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