Multi-concentration mouth-nose exposure system

By designing a multi-concentration oral and nose exposure system, and using a communication adjustment device to adjust the communication time between the exposed port and the air intake port, the problem of inhalation toxicology experiments of multiple concentrations in the prior art is solved, and efficient multi-concentration experiments are achieved.

CN119679541APending Publication Date: 2025-03-25BEIJING HUIRONGHE TECH
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Patent Information

Application Number
CN202411735880.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The prior art cannot perform multiple concentrations of animal inhalation toxicology experiments at the same time in the same inhalation exposure device, and multiple sets of devices or multiple experiments are required to complete.

Method used

A multi-concentration oral and nose exposure system is designed, including a tower body and a communication adjustment device. A multiple row of exposure ports are provided along its axial direction, and communicated with the inner tower body through a connecting pipe. The communication adjustment device is used to sequentially adjust the communication time between each row of exposure ports and the air inlet port.

Benefits of technology

An animal oral and nose exposure experiments at multiple concentrations in the same set of devices are realized, which improves the experimental efficiency.

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Abstract

The invention relates to a multi-concentration mouth and nose exposure system, and relates to the technical field of mouth and nose exposure experiment devices, the system comprises a tower body and a communication adjusting device, the tower body comprises an inner-layer tower body and an outer-layer tower body, the outer-layer tower body is provided with multiple rows of exposure ports along the axial direction, the exposure ports are communicated with the inner-layer tower body through connecting pipes, and the communication adjusting device is connected with the inner-layer tower body through connecting pipes; the exposure opening is in clearance connection with the connecting pipe; the top of the tower body is communicated with an air inlet communicated with the inner side tower body, and the bottom of the tower body is respectively communicated with an air supply port communicated with the inner side tower body and an air outlet communicated with the outer layer tower body; the communication adjusting device is arranged in the inner-layer tower body and is used for sequentially adjusting the communication time of each row of exposure ports and the air inlet. By arranging the multi-concentration mouth and nose exposure system capable of sequentially adjusting the exposure time of each row of exposure ports, animal mouth and nose exposure experiments with multiple concentrations can be carried out in one experiment, and the experiment efficiency of the animal mouth and nose exposure experiments is effectively improved.
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