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Double-cavity volume tracing box

A plethysmography, box technology, applied in the direction of diagnostic recording/measurement, medical science, sensors, etc., can solve problems such as drop, affect the accuracy of experimental data, increase O2 concentration, etc.

Inactive Publication Date: 2015-05-13
BEIJING BESTLAB HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It will cause the CO2 concentration in the box to rise and the O2 concentration to drop continuously during the experiment, which will affect the accuracy of the experimental data, and the animals will suffocate to death

Method used

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Embodiment Construction

[0028] like Figure 1-2 As shown, a dual-chamber plethysmography box according to an embodiment of the present invention includes an inhalation box and an exhalation box.

[0029] The suction box includes a first box body 1, the material of the first box body 1 is plexiglass, and a first air inlet pipe 2 and a first air outlet pipe 3 are respectively provided on both sides of the first box body 1, The top of the first box body 1 is provided with a first pressure measuring tube 4, and the first air inlet pipe 2 is connected to a first solenoid valve 6 through a gas pipe, and the first solenoid valve 6 is connected to a pressure control compressor 17 through a gas pipe. The first air outlet pipe 3 is connected to the second solenoid valve 7, and the first pressure measuring pipe 4 is connected to the first pressure sensor 5, and the first pressure sensor 5 is a micro pressure sensor.

[0030] The exhalation box includes a second box body 8, the material of the second box body 8...

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Abstract

The invention relates to a double-cavity volume tracing box. The double-cavity volume tracing box comprises an inhaling box, an exhaling box, a Y-shaped air pipe and a control system. The inhaling box and the exhaling box are connected with the Y-shaped air pipe. Electromagnetic valves are arranged in the air inlet and the air outlet of the inhaling box and the air inlet and the air outlet of the exhaling box, the inhaling box and the exhaling box are provided with pressure sensors, and the electromagnetic valves and the pressure sensors are connected with the control system. An experimental animal is placed outside a box body to carry out the experiment, during the experiment, an experimenter can carry out any interference on the animal, and therefore the application range of the animal pulmonary ventilation function measurement in the life science research is greatly enlarged. The breathing situation of the animal under the normal environment is simulated, and the stability of the experimental environment and the accuracy of experiment data are guaranteed. The double-cavity volume tracing box has the advantages of being easy to operate and low in machining cost. The size and the shape of the box body can be changed according to the size of the animal, the high-precision experimental data of various animals can be obtained, and the application range is wide.

Description

technical field [0001] The invention relates to the field of plethysmography boxes, in particular to a double-chamber plethysmography box for externally testing experimental animals (rats and mice) to detect pulmonary ventilation function. Background technique [0002] At present, when accurately detecting the pulmonary ventilation function of experimental animals (such as: airway resistance, lung compliance, etc.), the animal is placed in a plethysmography box, and the volume of the box is changed when the animal breathes, and the volume of the box causes the pressure in the box to change. The change of pressure is detected by the precision micro pressure sensor, and then the change of the volume in the box is calculated, that is, the change of the breathing volume of the animal. [0003] However, in order to ensure the continuity of the test data, the animals must be placed in the box during the whole experiment process, and only some simple drug injection interventions ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08
CPCA61B5/0803A61B5/087A61B5/091A61B2503/40A61B2503/42
Inventor 马文昶
Owner BEIJING BESTLAB HIGH TECH
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