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Rat carotid artery intubation tube

A carotid artery and intubation technology, applied in the field of life sciences, can solve the problems of unstable animal models, failure rates of animal models that do not meet animal welfare requirements, unstable performance and quality of self-made simple intubation, etc. Sealing, easy-to-control results

Pending Publication Date: 2018-12-18
北京维通利华实验动物技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance and quality of self-made simple intubation are unstable, resulting in unstable animal models. Problems in the use process will also affect the entire research process, and the failure rate of animal models often does not meet animal welfare requirements and the 3R principle

Method used

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  • Rat carotid artery intubation tube

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0026] Such as figure 1 As shown, the structure schematic diagram of the rat carotid artery cannula of the present invention. It includes an intravascular catheter 1 , a subcutaneous catheter 2 , an extracorporeal catheter 3 , a conical fixation knot 4 and a cylindrical fixation knot 5 .

[0027] The intravascular catheter 1 and the subcutaneous catheter 2 are connected by a conical fixed knot 4 , the tapered end of the conical fixed knot 4 is connected to the intravascular catheter 1 , and the bottom end is connected to one end of the subcutaneous catheter 2 . The other end of the subcutaneous catheter 2 is connected with one end of the extracorporeal catheter 3 through a cylindrical fixing knot 5 . These 5 parts together form a rat carotid artery cannula through the inside.

[0028] The intrava...

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Abstract

The invention discloses a rat carotid artery intubation tube which comprises an intravascular catheter, a subcutaneous catheter and an in-vitro catheter in sequential communication. The intravascularcatheter and the subcutaneous catheter are connected through a fixing joint, and the subcutaneous catheter and the in-vitro catheter are connected through a fixing joint. The rat carotid artery intubation tube conforms to the rat physiological structure, is easy to fix, more easily blocks an incision at the blood vessel tube intubation position, and is good in sealing performance; the diameter ofthe intravascular catheter is smaller than the diameter of the subcutaneous catheter and the diameter of the in-vitro catheter, the blood pressure in the in-vitro catheter is reduced, control is easywhen blood sampling is conducted through the intubation tube, and excessive bleeding is avoided; blood vessels cannot be injured by the polyurethane catheters, the catheters well fit the inner walls of the blood vessels, and blood leaking can hardly happen.

Description

technical field [0001] The invention relates to an experimental animal surgical instrument, in particular to a rat carotid artery cannula, which belongs to the technical field of life sciences. Background technique [0002] Carotid artery cannulation rat model is a commonly used experimental animal surgical model in the fields of life sciences, medical research and drug development. It is suitable for multiple administrations, blood collection and other operations, especially for pharmacokinetics and toxicokinetics research. Because the diameter of human arterial cannula is relatively thick, it is not suitable for rat carotid artery cannulation, and there is no carotid cannula suitable for rats in China. Most researchers can only import similar products from abroad for modification or make their own. Easy intubation. The use of imported similar products not only requires self-modification, but also greatly increases the cost of making a carotid artery cannulation rat model....

Claims

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Application Information

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IPC IPC(8): A61D1/00
CPCA61D1/00
Inventor 骆一瑛徐冰周毅尹良宏卢胜明陈曦
Owner 北京维通利华实验动物技术有限公司
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