Hyperemia device for rat tail and hyperemia and blood sampling method of hyperemia device

Abstract

The invention discloses a hyperemia device for a rat tail and a hyperemia and blood sampling method of the hyperemia device. The hyperemia device comprises a fixator used for fixing an experimental rat and a heating water tank used for heating the experimental rat; a plurality of steam outlet holes used for emitting water steam to the experimental rat are formed in the top of the heating water tank, and a plurality of steam permeable parts exposing part of the rat tail are arranged on the fixator; the steam permeable part is located in a steam outlet area of the steam outlet hole, water steam can rapidly flow into the steam permeable part and make contact with the exposed rat tail, the steam heating effect on the rat tail is achieved, the manufacturing cost of the device for heating and hyperemia of the rat tail is effectively reduced, and the problem that in the prior art, the rat tail is placed in the whole liquid, liquid cannot be reused after being heated for a single time and waste is caused in the experiment requirement for strict infection prevention are solved; and a sensor used for monitoring the blood flow speed is arranged on the rat tail, blood is collected after the corresponding blood flow speed is achieved through the cooperation effect of the sensor and the heating water tank, and the effectiveness of blood collection is guaranteed.

Description

technical field [0001] The invention relates to the field of medical experiment equipment, in particular to a hyperemia device for rat tails and methods for hyperemia and blood collection. Background technique [0002] In the prior art, it is often necessary to take blood from rats. The traditional methods of blood collection include decapitation, heart blood, eyeball, etc. These traditional blood collection methods will lead to the death of rats, which is not conducive to repeated experiments and continuous observation. Rats were venously drawn from the tail. In the prior art, there are mainly two methods for taking blood from the rat tail vein: 1) Manually lift the tail of the rat to hang the rat upside down, cut the tail to create a wound, and then take blood through the capillary. This method is safe. Low and inconvenient to operate; 2) in the rat test, the tail of the rat is often heated to facilitate the experiment. The way in the prior art is to use an utensil fille...

AI Technical Summary

Problems solved by technology

The traditional methods of blood collection include decapitation, heart blood, eyeball, etc. These traditional blood collection methods will lead to the death of rats, which is not conducive to repeated experiments and continuous observation. Tail site for venous bleeding of rats

In the prior art, there are mainly two methods for taking blood from the rat tail vein: 1) Manually lift the tail of the rat to hang the rat upside down, cut the tail to create a wound, and then take blood through the capillary. This method is safe. Low and inconvenient to operate; 2) in the rat test, the tail of the rat is often heated to facilitate the experiment. The way in the prior art is to use an utensil filled with hot water to heat the tail of the rat with hot water , which is inconvenient and difficult to maintain and control the temperature

[0003] Patent document CN204931894U discloses a rat experiment console device, wherein a rat tail cover is placed on the upper surface of the test table, and the rat tail cover is a tubular closed structure composed of a flexible rubber inner wall and a rigid rubber outer wall. The heating resistance wire is fixed in the closed space formed by the heating resistance wire and the outer wall. The heating resistance wire is connected to the temperature control power supply outside the tail cuff of the rat through a wire. A temperature sensor is fixed on the inner wall on the right side of the heating resistance wire. It is connected with the temperature-controlled power supply outside the rat tail cuff to control the power supply of the temperature-controlled power supply to the heating resistance wire. However, the whole device still needs to optimize the selection of the rat tail cuff, which can not only prevent the rat from being scalded, but also play a role in transmission. Thermal effects, inevitably leading to an increase in cost

[0004] Patent document CN212326661 U discloses a mouse tail vein injection warm bath lighting auxiliary device, the warm bath unit includes a box body, the box body is provided with a heating cavity, a liquid contained in the heating cavity and a heating body, the fixer can pass through the The adjustable bracket is connected with the box, and the adjustable bracket is used to adjust the position of the fixer on the horizontal plane and the vertical plane to form; warm bath state: the fixer is facing the heating chamber, and the tail of the mouse protrudes from the fixer and extends into the liquid and heated by the liquid; but by directly placing the rat tail in the heated liquid, it will inevitably lead to contamination of the liquid by the rat tail. In actual use, it cannot be applied to the heating of other rat tails.

Images