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Sealed blood collection device for medical blood test

A blood collection and blood collection needle technology, which is applied in application, medical science, sensor and other directions, can solve the problems of poor sealing effect and easy dripping, etc., and achieve the effect of good sealing effect, reasonable structure and safe use.

Inactive Publication Date: 2018-02-27
杨智伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The same needle is generally used for blood collection and blood discharge, and its sealing effect is not good, and it is easy to drip

Method used

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  • Sealed blood collection device for medical blood test
  • Sealed blood collection device for medical blood test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 A sealed blood collection device for medical blood testing is shown, including a blood collection head 1, a blood storage device, and a discharge mechanism. The blood storage device includes a blood storage bin 3, and a blood storage inlet provided at the bottom of the blood storage bin 3 31. The extraction piston 4 and the safety ring 6 arranged inside the blood storage bin 3; the upper side wall of the blood storage bin 3 is provided with external threads; The inner cavity of the rubber piston 41 is adapted to each other, the piston rod 42 connected to the upper part of the rubber piston 41 and the rotating sleeve 43 arranged on the upper part of the blood storage bin 3 and screwed to the blood storage bin 3, the rotating sleeve 43 There is a through hole in the middle; the piston rod 42 passes through the through hole and the top of the piston rod 42 has a limit ring seat 421 that abuts against the end surface of the rotating sleeve 43; the blood sto...

Embodiment 2

[0021] Such as figure 1 Shown is a sealed blood collection device for medical blood testing, the blood collection head 1 includes a blood collection needle 2 and a blood collection needle 12 arranged at the blood storage inlet 31; and the blood storage inlet 31 communicate with each other.

[0022] A sealed blood collection device for medical blood testing according to the present invention has a reasonable structure and one-way blood collection. The blood collection head is used to collect blood by pressing the blood collection cap or through the blood collection needle tube, and the blood discharge needle is inserted in the elastic rubber. , the sealing effect is good, when the blood is drained, the safety pull ring is removed, the pressure cap touches the blood storage device, the blood drain needle penetrates the elastic rubber, the extraction piston is pressed down, and the blood storage chamber forms a negative pressure, thereby completing the blood drain; The blood col...

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PUM

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Abstract

The invention discloses a sealed blood collection device for medical blood test. The device comprises a blood collection head, a blood storage device and a discharge mechanism. The blood storage device comprises a blood storage bin, a blood storage inlet arranged at the bottom of the blood storage bin, an extraction piston arranged inside the blood storage bin and a safety pull ring. An external thread is arranged on the upper side wall of the blood storage bin. The extraction piston comprises a rubber piston arranged at the bottom and in mutual matching with an internal cavity of the blood storage bin, a piston rod connected with the upper portion of the rubber piston and a rotating sleeve arranged on the upper portion of the blood storage bin and in mutual threaded connection with the blood storage bin, and a through hole is formed in the middle of the rotating sleeve. The piston rod passes through the through hole and the top of the piston rod is provided with a limiting ring seat abutting against the end surface of the rotating sleeve. A check valve is arranged in the blood storage inlet. The sealed blood collection device for medical blood test has a reasonable structure, convenient use and good sealing effect, and can prevent dripping and leaking and prevent injuries.

Description

technical field [0001] The invention relates to the field of blood collection devices, in particular to a sealed blood collection device for medical blood testing. Background technique [0002] Before a medical blood test, blood is collected using a blood collection needle, a device used to collect blood samples during a medical examination, consisting of a needle and a needle shaft, the needle is set at the head of the needle shaft and slides on the needle shaft A sheath is connected, a return spring is arranged between the sheath and the needle bar, and the initial position of the sheath is located at the head of the needle head and the needle bar. The same needle is generally used for blood collection and blood discharge, and its sealing effect is not good, and it is easy to drip. Contents of the invention [0003] The technical problem to be solved by the present invention is: in order to overcome the above-mentioned problems, a sealed blood collection device for medi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/153A61B5/151
CPCA61B5/15186A61B5/153A61B5/150022A61B5/15003A61B5/150221A61B5/150236A61B5/150389A61B5/150503A61B5/150633A61B5/15142
Inventor 杨智伟
Owner 杨智伟