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Sampling and blood separating device

A sampling needle and blood collection tube technology, applied in the field of medical devices, can solve the problems of increasing the sampling time and halving the life of the sampling needle.

Pending Publication Date: 2021-11-30
ZYBIO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sampling blood separation device, which aims to solve the problem that the existing sampling needle device needs to be punctured twice during use, resulting in half the life of the sampling needle and increasing the sampling time

Method used

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  • Sampling and blood separating device
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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the terminology used ...

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Abstract

The invention discloses a sampling and blood separating device. The sampling and blood separating device comprises a sampling needle, a first cavity, a second cavity and a negative pressure source assembly; the sampling needle is connected with the first cavity; two ends of the second cavity are connected with the first cavity and the negative pressure source assembly respectively; the negative pressure source assembly is used for guiding a negative pressure into the second cavity when the negative pressure source assembly communicates with the second cavity; and the sampling needle is used for puncturing into a blood sampling tube and the second cavity is used for guiding a negative pressure into the first cavity when the second cavity communicates with the first cavity, such that a pressure in the sampling needle and the negative pressure in the blood sampling tube to be punctured form a balance. The sampling and blood separating device has a simplified structure, does not need a complex deflation structure be manufactured on the sampling needle, only needs one time of puncturing during sampling each time, and has advantages of prolonging a service life of the sampling needle and improving a sampling speed.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a sampling and blood separating device. Background technique [0002] In the current sampling needle device, the test tube is filled with negative pressure before the sample is collected. Since the amount of sample collected is not fixed, there will be a certain residual pressure in the test tube, which needs to be released by automatic sampling or closed sampling automatic immunoassay analyzer. The residual pressure in the test tube is usually released by using a sampling needle with a lateral air release groove. The outer surface of the sampling needle is processed with the air release groove. In terms of usage, one sampling needs to be punctured twice, the first time Degassing first, followed by sample collection a second time, halved the life of the sampling needle and increased the sampling time. At the same time, the friction between the degassing groove and the...

Claims

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Application Information

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IPC IPC(8): A61B5/154A61B5/15
CPCA61B5/154A61B5/150099
Inventor 刘玉锋白新梅吴凡
Owner ZYBIO INC
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