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Elastic vertical compression type pain quantitative determination instrument

A quantitative measurement and direct pressure technology, applied in sensors, diagnostic recording/measurement, medical science, etc., can solve problems that cannot be adopted, affect the accuracy and objectivity of pain measurement, and achieve an improved degree of automation, a high degree of automation, and stability good sex effect

Inactive Publication Date: 2009-03-25
THE FIRST HOSPITAL OF HEBEI MEDICAL UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the measuring instrument adopts the method of vertical pressure, since the pressure rod is a rigid body, when it descends at a constant speed, there will be an instantaneously increased pressure value at the moment of contact with the mouse paw or tail. This nonlinear pressure The generation and existence of the value will seriously affect the accuracy of the pain measurement and the objectivity of the experiment, so it cannot be used

Method used

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  • Elastic vertical compression type pain quantitative determination instrument
  • Elastic vertical compression type pain quantitative determination instrument
  • Elastic vertical compression type pain quantitative determination instrument

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Experimental program
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Embodiment Construction

[0017] Such as figure 1 , figure 2 As shown, a pedestal 4 and a support 5 are respectively fixed on the front and back of the top surface of the casing 7 of the measuring instrument of the present invention. A pressure measuring platform 3 is plugged into the center hole of the pedestal 4 , and the lower end of the pressure measuring platform 3 passes through the preflow hole on the casing 7 and leans against the pressure sensor 11 at the bottom. The pressure sensor 11 is a 2Kg weighing sensor, which is fixed inside the casing 7 . Two positioning rods 12 are fixed on the support 5 on the top surface of the casing, the connecting plate 1 is connected on the two positioning rods 12, and a screw 2 is arranged in the middle of the two positioning rods 12, and the screw rod 2 is supported and connected by a bearing 15. On the support 5, the upper end of the screw rod 2 is threadedly connected with the connecting plate 1, and the lower end of the screw rod 2 passes through the pr...

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Abstract

The invention relates to an elastic direct compression pain quantitative measurement instrument used in pharmaceutical research and medical experiments. The pain quantitative measurement instrument is structurally characterized in that a pressurizing mechanism, a pressure measuring platform and a platform base are arranged on a shell; a pressure detecting mechanism is arranged inside the shell; and the pressurizing mechanism is characterized in that an upright elastic pressurizer is connected on a lifting mechanism which is connected with a step motor through a transmission mechanism. The pain quantitative measurement instrument eliminates the oblique scraping force of existing measurement instrument at the time of pressurizing, and is high in automatization degree, simple to operate and good in stability and can provide objective and accurate measurement data for pharmaceutical research and medical experiments of quantitative mice pain measurement.

Description

technical field [0001] The invention relates to an animal experiment device in drug research and medical experiment, in particular to an elastic direct pressure pain quantitative measuring instrument. Background technique [0002] In drug research and medical experiments, a kind of animal test that often needs to be done is the quantitative determination of pain sensation in rats and mice. The currently used Pain Quantitative Measuring Instrument is equipped with a pressurizing mechanism, a pressure measuring platform and a pedestal on the casing of the instrument, and a pressure detection mechanism is housed in the casing of the instrument. The test process is: the experimenter manipulates the pressurizing mechanism of the tester to pressurize the mouse paw or tail placed on the pressure measuring platform, and immediately stops the pressurization after the mouse makes a cry due to pressure, and the pressure in the instrument The pressure detection mechanism measures and r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61K49/00
Inventor 范振中王铭维顾平崔冬生易小林
Owner THE FIRST HOSPITAL OF HEBEI MEDICAL UNIV
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