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Rat femoral artery cannula

A femoral artery and cannulation technology, applied in the field of rat femoral artery cannulation, can solve the problems of high price, hindering scientific research, and long delivery time.

Pending Publication Date: 2022-02-11
SHENZHEN INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, intubation tubes in scientific experiments are mostly imported, which are expensive (average US$100 / piece) and have a long delivery period; at the same time, some manufacturers do not import domestically, which hinders the development of scientific research

Method used

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  • Rat femoral artery cannula
  • Rat femoral artery cannula

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Embodiment Construction

[0021] In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening ele...

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Abstract

The invention discloses a rat femoral artery cannula which comprises an intravascular catheter, a subcutaneous inner catheter and an in-vitro adapter which are communicated in sequence; the intravascular catheter and the subcutaneous catheter are long tubes which are made of hard materials and have smooth surfaces; the outer diameter of the intravascular catheter is matched with the inner diameter of a rat femoral artery blood vessel; the inner diameter of the subcutaneous inner catheter is smaller than the outer diameter of the intravascular catheter and greater than the inner diameter of the intravascular catheter. According to the rat femoral artery cannula, stable retention of the cannula after the cannula operation and stable measurement of continuous blood pressure are achieved, and the influence of deformation of the cannula on blood pressure measurement is reduced.

Description

technical field [0001] The invention relates to the field of experimental animal surgical models, in particular to a rat femoral artery cannula. Background technique [0002] Femoral artery cannulation rat model is a commonly used experimental animal surgical model in the fields of life science, medical research and drug development. Because it can directly monitor the continuous dynamic change process of arterial pressure, it is not affected by artificial pressure and animal state, and has the advantages of being accurate and reliable, and taking values ​​at any time. Usually, the intubation operation has higher requirements on the material of the tube. The commonly used intubation tubes are mostly made of polyurethane, medical grade PVC or medical grade PP polypropylene. The main manufacturers are American Instech, Dow and other companies. [0003] The commonly used cannulae are made of materials such that the relatively soft tube body will be affected by the arterial p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0215
CPCA61B5/0215A61B2503/40A61B2503/42
Inventor 林薇王虹瑙曼·罗伯特·康拉德
Owner SHENZHEN INST OF ADVANCED TECH
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