CN2922788Y

CN2922788Y - Vertical touch-induced pain detector

Info

Publication number: CN2922788Y
Application number: CN 200520046983
Authority: CN
Inventors: 耿桂启
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-28
Filing date: 2005-11-28
Publication date: 2007-07-18
Anticipated expiration: 2015-11-28

Abstract

A vertical tactile allodynia tester capable to quickly and accurately measure the tactile allodynia threshold, wherein upper end of the glass drum is communicated with the test tube; a cylindrical plastic tube that can freely be taken out is provided in the glass drum; top nipple of the plastic tube is connected with a metal hollow tube; a rigid cilium 0.6 millimeter in diameter is provided in the metal hollow tube, and only about 1mm of the cilium is exposed out of the metal hollow tube; the metal hollow tube is the clamped to fix the cilium. When the glass drum is filled with water, the plastic tube is floated; when water level in the glass drum reaches the joint of the glass drum and the test tube, hold the glass drum and thrust the cilium to the animal models; the ached animal tends to escape, and the sunk plastic tube by pressure in the glass drum floats off. The difference of the buoyancy force on the plastic tube equals to the weight of water that flows outwards to the glass test tube, and also equals to the force applied to the animal models for pain research, and that is the threshold.

Description

Rectilinear touching brought out the pain analyzer

Technical field

This utility model relates to the new equipment that pain threshold is measured, and can easyly measure the pain threshold that sense of touch is brought out exactly.

Background technology

In the basic research of pain, it is main a kind of method that the behavioristics of animal pattern is measured, and comprising: heat is brought out pain, touches and brings out pain.Touching the mensuration of bringing out pain, mainly is to adopt Von Frey cilium at present, and its principle is to utilize the cilium repeated multiple times of different size to stimulate the hyperalgesic generation of animal after observation inflammation or the nerve injury; Its shortcoming has: the loaded down with trivial details and report method of 1 mensuration process differs; The automatic apparatus of 2 sensing equipment right and wrong needs artificial intervening measure during detection, easily influence measurement result; 3 is too expensive, about 500$; Flexibility decrease behind 4 life-time service, accuracy reduces.

Summary of the invention

In order to overcome the shortcoming such as loaded down with trivial details and inaccurate that adopts Von Frey cilium to measure this method in the threshold of pain, this utility model provides a kind of rectilinear touching to bring out the pain analyzer, and this device can be measured rapidly and accurately to touch and bring out pain threshold.

The technical scheme that its technical problem that solves this utility model adopts is: be connected on the glass infuser with on having scale test tube, insert a cylindrical plastic tube that can freely take out in the glass infuser, plastic barrel top nipple and metal hollow pipe join, put into the hard cilium of a diameter 0.6mm thickness in the metal hollow pipe, cilium only exposes the about 1mm of metal hollow pipe, and folder closes metal hollow pipe fixed cilia.After injecting water in the glass infuser, plastic barrel floats immediately; Add water in the glass infuser with the test tube junction after, hand-held glass infuser, with the cilium perpendicular insertion to the animal pattern target area, animal after causing bitterly produces and escapes, the plastic barrel that pressurized sinks in the glass infuser floats immediately, the difference that the suffered buoyancy of plastic barrel changes equals the outer weight that flow to water in the teat glass, also is equal to the suffered active force in pain model animal target area.

The beneficial effects of the utility model are can measure pain threshold quickly and easily, and behind the life-time service, accuracy not to reduce.

Description of drawings

Comprise: Fig. 1 is a front elevation of the present utility model,

Fig. 2 is a side view of the present utility model,

Fig. 3 is a vertical view of the present utility model.

Among the figure: 1, cilium; 2, the cylindrical plastic tube; 3, glass infuser; 4, teat glass; 5, connection place; 6, metal hollow pipe.

The specific embodiment

To be connected on the glass infuser (3) with on having graduated teat glass (4); With the interior water filling of glass infuser (3), plastic barrel (2) floats immediately, adds water and makes the fluid level to the place (5) that is connected with teat glass (4); Hand-held glass infuser bottom makes the interior cilium of metal hollow pipe (6) (1) vertically, slowly stab the animal pattern target area; Animal after causing bitterly produces and escapes, and the plastic barrel that pressurized sinks in the glass infuser floats immediately, and the difference of the suffered buoyancy variation of plastic barrel equals the outer weight that flow to water in the teat glass, also is equal to the suffered active force in pain model animal target area.

Claims

1 one kinds of rectilinear touching are brought out the pain analyzer, the glass infuser upper end is connected with the teat glass upper end, insert a cylindrical plastic tube that can freely take out in the glass infuser, plastic barrel top nipple and metal hollow pipe join, put into the hard cilium of a diameter 0.6mm in the metal hollow pipe, cilium exposes metal hollow pipe 1mm, and folder closes metal hollow pipe fixed cilia, and it is characterized in that: teat glass is connected in the junction, upper end with glass infuser.