Sealed breathing mask for rat

Abstract

The invention discloses a sealed breathing mask for a rat, and relates to an animal experimental device, in particular to a breathing mask for a rat. The sealed breathing mask for the rat aims to effectively fix the head of the rat and prevent leakage of gas in the mask. The sealed breathing mask for the rat consists of a special-bowl-shaped shell, a special-shaped silica gel sealing ring, a toothed rod, a silica gel ring and a packing ring. By combination of the special-bowl-shaped shell and the silica gel sealing ring, the mask can be attached to the face of the rat, while being connected with the rat and the breathing mask, the toothed rod can further serve as a gas outlet channel of the mask, and while the packing ring can effectively fix the toothed rod, a gas outlet can be sealed bythe packing ring. By good airtightness, an experimenter can be effectively prevented from being exposed in dangerous gas, gas (liquid) of the outside is prevented from entering the mask, experiments such as photoacoustic imaging and thermoacoustic imaging can be met, and after the rat submerges into water, experimental requirements for guaranteeing free breathing of the rat can further be met.

Description

technical field [0001] The invention relates to an animal experiment device, in particular to a rat breathing mask. Background technique [0002] In medical and life science research, respiratory masks, as an important device in rat experiments, have been widely used in experiments such as inhalation anesthesia, inhalation drug delivery, and exposure to oropharyngeal smoke. Existing rat breathing masks are mainly developed for brain stereotaxic instruments, MRI and other equipment. Usually, the rat's teeth are placed on the rack, and the conical (or cylindrical) suction mask is moved backward until it clings to the mouth. Go around the rat's nose or press down the rat's nose by moving the fixed block down to fix the rat's head. However, the rat's head is not completely conical, and the animal's face cannot fit the mask completely. In order to prevent harmful leakage of anesthetic gas, a recovery mask is generally designed outside the conical inhalation mask to cooperate wit...

AI Technical Summary

Problems solved by technology

For example, when performing photoacoustic and thermoacoustic imaging, the scanning part of the rat needs to be completely immersed in water to be detected by the ultrasonic probe. When scanning the brain of a rat, in order to ensure that the rat can breathe, the rat can only be placed Outside the water, the signal detection is done through the thin film and ultrasonic coupling agent, and the thin film and ultrasonic coupling agent will refract, scatter and absorb laser light, microwave and ultrasonic waves, which will deteriorate the quality of the obtained photoacoustic and thermoacoustic images

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