Inhalational anesthetic device for experimental animals and application method thereof

Abstract

The invention discloses an inhalational anesthetic device for experimental animals, comprising a housing, an anesthetic chamber, an intake pipe, and a return gas pipe, as well as an anesthetic gas source; a pressure sensing device is arranged within the housing and includes a bearing plate, a spring, a rheostat and a controller, one end of the spring is fixed to the inner wall of the housing, theother end of the spring is connected with the bearing plate, the rheostat is connected to the bottom face of the bearing plate and is connected with the controller, a front end opening of the housingis connected with the intake pipe, a rear end opening of the housing is provided with a rear end cover that is threaded connection or fastened connection, the rear end cover is connected with an inlethood, and the edge of the inlet hood covers the inner side of the rear end cover. The inhalational anesthetic device for experimental animals has the advantages that anesthetic gas is distributed evenly in the anesthetic chamber to arrive at optimal fastest anesthesia; anesthetic condition is judged according to movement state of an animal, anesthesia is stopped in time, harm to the animal due toinhalation of excess of an anesthetic drug is relieved; the inhalational anesthetic device for experimental animals is good in tightness and causes less harm of anesthetics to experimental staff.

Description

technical field [0001] The present invention relates to a respiratory anesthesia device and its use method, in particular to a respiratory anesthesia device for experimental animals and its use method. It belongs to the technical field of experimental animal devices. Background technique [0002] The anesthesia of experimental small animals is a link in the in vivo experiment and effectiveness evaluation of traditional Chinese medicine in the process of pharmaceutical research and development. At present, there are two main methods of general anesthesia in the clinical application of small animals in my country: inhalation anesthesia and non-inhalation anesthesia. In recent years, inhalational anesthesia has become more and more important clinically due to its advantages of safety, stability, strong controllability, and less adverse reactions, and it has gradually replaced non-inhalational anesthesia. However, due to the small size of small hamsters, there is no dedicated ...

AI Technical Summary

Problems solved by technology

However, due to the small size of small hamsters, there is no dedicated anesthesia device for volatile anesthetics such as ether / isoflurane. Usually, a simple anesthesia device is made by filling cotton in a beaker or a specimen jar, but a large amount of volatile anesthetics volatilizes, which is harmful to the health of the operator. Influence and waste of anesthetic; moreover, the anesthetic dose and depth of anesthesia are not easy to control; volatile anesthetic has the characteristics of rapid anesthesia and rapid recovery, and the operation is time-consuming when the animal is taken out, which is easy to delay the anesthesia period

Although some existing anesthesia tools for animals are equipped with an intake pipe and a return pipe, most of the gas in the intake pipe enters the return pipe directly, resulting in a low concentration of anesthesia gas inside the outer cover, low anesthesia efficiency, and prone to cross-infection

In addition, the existing anesthesia devices cannot respond to the anesthesia of animals, so that the animals may inhale excessive anesthesia drugs and cause death or injury, which may affect further experiments

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