Micro blood sampling assembly
By designing a deformable blood storage bottle and a capillary tube for micro-blood collection, the problem of blood contamination during capillary blood collection has been solved, enabling simple and reliable blood collection and improving the reliability and convenience of the blood collection process.
CN224330945UActive Publication Date: 2026-06-09BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
- Filing Date
- 2025-04-14
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
In existing technologies, improper operation during capillary blood collection can easily lead to blood contamination of the rubber nozzle, and the collection process is inconvenient.
Method used
A micro-blood collection assembly comprising a deformable blood storage bottle and a capillary tube is designed. Blood is drawn from the blood storage bottle by squeezing it and collected into the storage chamber, avoiding blood contamination caused by improper operation.
Benefits of technology
It enables simple and reliable blood collection, avoids the risk of nozzle contamination, and improves the reliability and ease of operation of the blood collection process.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure CN224330945U_ABST
Abstract
This utility model discloses a micro-volume blood collection assembly, including a blood collection container and a capillary tube. The blood collection container includes a blood storage soft bottle and a rubber stopper. The blood storage soft bottle forms a storage cavity with an opening. The blood storage soft bottle has a switchable first state and a second state. The volume of the storage cavity in the first state is larger than the volume of the storage cavity in the second state. The rubber stopper seals the opening of the blood storage soft bottle and has a through hole that communicates with the storage cavity. The capillary tube is removably inserted into the through hole, wherein the capillary tube expands the inner diameter of the through hole when inserted. According to this utility model, the micro-volume blood collection assembly allows medical personnel to draw blood by squeezing the blood storage soft bottle and collect the drawn blood into the blood storage soft bottle. Blood drawing and collection can be completed in one operation. The structure is simple and easy to operate, effectively avoiding the risk of contamination of the collected blood by the rubber nozzle due to improper operation. The structure is reliable.
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