Blood sampling device for clinical medicine

By using a magnetically driven bidirectional adjustment mechanism and a limiting hole sealing system, the problem of non-adjustable blood collection volume in vacuum blood collection tubes has been solved, enabling flexible adjustment and personalized adaptation of blood collection volume, thus improving the flexibility and humanization of blood collection work.

CN121533730APending Publication Date: 2026-02-17JINING MEDICAL UNIV
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Patent Information

Application Number
CN202610040680.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-13
Publication Date
2026-02-17

AI Technical Summary

Technical Problem

In current clinical medicine, the blood collection volume of vacuum blood collection tubes is not adjustable, which makes it impossible to flexibly adjust according to the patient's specific situation and the needs of the test items, resulting in waste of resources and burden on the patient's body.

Method used

It adopts a magnetically driven bidirectional adjustment mechanism and a limiting hole sealing system. The blood collection volume can be adjusted by driving the limiting rod to move through magnetic force. Combined with the flexible connection of the spiral tube and the double piston sealing structure, it ensures a stable negative pressure environment.

Benefits of technology

It enables flexible adjustment and personalized adaptation of blood collection volume, reduces the physical burden on patients and waste of resources, and improves the flexibility and humanization of blood collection work.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121533730A_ABST
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Abstract

The invention provides a blood sampling device for clinical medicine, and relates to the technical field of blood collection, the blood sampling device comprises a blood sampling tube, one end of the blood sampling tube is in threaded connection with a first threaded sleeve, and the side wall of the first threaded sleeve is connected with a rubber disc; the device further comprises an adjusting mechanism, the adjusting mechanism comprises a middle disc, multiple sets of limiting holes are formed in the surface of the middle disc, grooves are formed in the centers of the two sides of the middle disc, circulation holes are formed in the grooves, the side walls of the two sets of grooves are connected with four sets of guide rods, and the other ends of the guide rods are connected with limiting rings. According to the blood sampling device, the magnetic attraction driving type two-way adjusting mechanism is matched with the limiting hole sealing system, the problem that the blood sampling amount of a traditional vacuum blood sampling tube with the fixed capacity cannot be flexibly adjusted is solved, and the adjustable and controllable blood sampling amount and the personalized adaptation function of clinical requirements are achieved.
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