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An arterial blood extractor capable of isolating air

A technology of air isolation and blood drawer, which is applied in the field of medical equipment, can solve problems such as poor air isolation effect, and achieve the effect of good air isolation, convenient operation, and simple operation

Inactive Publication Date: 2019-01-01
SHIYAN TAIHE HOSPITAL
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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 overcome the deficiencies of the prior art and provide an arterial blood drawer capable of isolating air with reasonable design, simple operation, safety and quickness, mainly to solve the problem of poor effect of isolating air

Method used

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  • An arterial blood extractor capable of isolating air
  • An arterial blood extractor capable of isolating air
  • An arterial blood extractor capable of isolating air

Examples

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Embodiment Construction

[0013] like figure 1 , figure 2 and image 3 As shown, an arterial blood drawer capable of isolating air includes a drawer, the drawer consists of a syringe 1, a joint 2, a piston push rod 3, a piston 4, and a needle 5, and the piston is fixed on the front end of the piston push rod On the top, the piston and the piston push rod are loaded into the syringe from the tail end of the syringe, the piston and the syringe are sealed, the joint is fixed on the front face of the syringe, and the needle is installed on the joint; the front end of the syringe There is a partition 6 inside, and the partition is tightly matched with the syringe. The partition is provided with an eccentric hole 601. The inner hole of the joint corresponds to the movement track of the eccentric hole. The arc groove 101 has a rotary knob 602 extending outward on the peripheral surface of the partition, the rotary knob passes through the arc groove, the rotary knob can push the partition to rotate, and the...

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Abstract

An arterial blood extractor capable of isolating air comprises a blood extractor, wherein the blood extractor is fixed on the front end of the piston push rod by a syringe, a connector, a piston pushrod, a piston, and a needle. The piston is fixed on the front end of the piston push rod, the piston and the piston push rod are loaded into the syringe from the rear end of the syringe, the piston issealingly matched with the syringe, the connector is fixed on the front end surface of the syringe; and the needle is mounted on the connector; the front end of the syringe is provided with a partition plate, the partition plate and the syringe are sealingly matched, an eccentric hole is arranged on the partition plate, an arc-shaped groove is arranged on the peripheral surface of the syringe relative to the partition plate, a rotary knob extends outward on the peripheral surface of the partition plate, the rotary knob passes through the arc-shaped groove, a finite position plate is symmetrically arranged on the inner wall of the syringe, and the partition plate is restricted in the front end of the syringe by a position limiting plate. The through hole on the rotary separator is dislocated from the joint hole on the front end of the syringe by rotating the separator so as to quickly realize the purpose of isolating the blood gas specimen from the air. The operation is simple and theisolation effect is good and safe.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an arterial blood pump capable of isolating air. technical background [0002] Arterial blood is the main sample for blood gas analysis. It is extremely important to isolate the air, because the partial pressure of oxygen in the air is higher than that of arterial blood, and the partial pressure of carbon dioxide is lower than that of arterial blood. According to the law of gas exchange, high partial pressure diffuses to low partial pressure, and blood If the specimen is in contact with air, the partial pressure of oxygen and carbon dioxide in the blood will be changed without measurement value. At present, the arterial blood gas needle used in clinical practice often uses a rubber stopper to seal the needle after blood collection is completed, but this kind of blood collection needle is prone to air bubbles entering the syringe after blood collection, and it is very dang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/153
CPCA61B5/153A61B5/15003A61B5/150374A61B5/150801
Inventor 袁国林李俊张吉才毛达勇王磊王芳
Owner SHIYAN TAIHE HOSPITAL
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