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Full-automatic excised skin percutaneous resistance measuring device

A resistance measurement, fully automatic technology, applied in the direction of measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., can solve the problems of inaccurate measurement, polluting operators, and slow single measurement speed, so as to avoid inaccurate measurement Effect

Inactive Publication Date: 2015-12-02
TIANJIN HOPE IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The beneficial effects of the present invention are: a fully automatic isolated skin percutaneous resistance measurement device has been developed, which avoids the problems of inaccurate measurement, slow single measurement speed and contamination of operators due to the traditional measurement method of manual operation, and can be used in batches. Automatically control the measurement of transdermal resistance of isolated skin, which fundamentally solves the problem of fully automatic, fast, accurate, standard, and batch detection of transdermal resistance of isolated animal skin in scientific research and experiments, and is widely used in skin irritation and corrosion tests

Method used

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  • Full-automatic excised skin percutaneous resistance measuring device

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Experimental program
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Effect test

Embodiment

[0019] When in use, first prepare several pieces of fresh isolated animal skin 12 that have been coated with the test drug or have been processed and tested according to the needs, and prepare an appropriate electrolyte 10 with a certain concentration and requirements. The operation control circuit 40 in the computer operation box 2 controls the movement of the lifting motor 22 fixedly installed on the side wall 19 of the base in the lifting drive assembly 27. The lifting motor 22 drives the rotating screw 26 to rotate, and the internal thread sleeve 31 is driven by the screw sleeve plate according to the direction of rotation. 32 drives the electrode lifting platform 33 to move along the direction of the rotating screw 26, drives the entire electrode lifting platform 33 to lift to the highest position, so that the inner electrode 6 and the outer electrode 5 are in the position extracted from the inner electrode port 20 and the outer electrode port 29, without Affect the subseq...

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Abstract

The invention provides a full-automatic excised skin percutaneous resistance measuring device comprising an electrolytic tank platform equipped with multiple electrolytic tanks. The bottom of each external electrolyte pipe in the electrolytic tanks is communicated with an injection and exhaust pump and an electrolyte bottle through a solenoid valve. The movable top cover of an internal electrolyte pipe is installed on the top opening of each external electrolyte pipe. Excised animal skin is fixed to the bottom of the internal electrolyte pipe by a skin snap ring. An electrode lifting platform provided with an internal electrode and an external electrode are correspondingly installed over the electrolytic tank platform. An operation control circuit controls a lifting driving assembly to drive the electrode lifting platform to move up and down in order that the internal electrode and the external electrode are inserted into electrolyte. An accurate resistance measuring circuit measures the excised animal skin in each electrolytic tank. Measured percutaneous resistance data is stored by a data output and storage circuit and output to a display and a printer. The full-automatic excised skin percutaneous resistance measuring device solves a problem of detecting the percutaneous resistance of the excised animal skin fully automatically, fast, accurately, and standardly.

Description

technical field [0001] The invention relates to a fully automatic isolated skin percutaneous resistance measuring device. Background technique [0002] Corresponding experiments are often required in the identification and scientific research of skin irritation and corrosion in modern times. In the past, most of the experiments were carried out with live animals, but now less and less live animal experiments are used, and more attention is paid to the use of isolated animals. Skin irritation and corrosion and other alternative methods experiments, the isolated animal skin is fixed and its transdermal resistance value is measured to distinguish the irritation and corrosion of the skin; the method currently used for the measurement of the transdermal resistance of the isolated animal skin Many, after the skin is fixed, use a multimeter, DC bridge or AC bridge to measure manually, because the electrolyte solution is used as the medium during the measurement, which will easily c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02
Inventor 范维林
Owner TIANJIN HOPE IND & TRADE
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