CN203153998U

CN203153998U - Mouse fixator

Info

Publication number: CN203153998U
Application number: CN 201220694777
Authority: CN
Inventors: 陈永红; 邹志飞; 刘慧智; 刘崇华
Original assignee: Inspection and Quarantine Technology Center of Guangdong Entry Exit Inspection and Quarantine Bureau
Current assignee: Inspection and Quarantine Technology Center of Guangdong Entry Exit Inspection and Quarantine Bureau
Priority date: 2012-12-14
Filing date: 2012-12-14
Publication date: 2013-08-28
Anticipated expiration: 2022-12-14

Abstract

The utility model relates to a mouse fixator which comprises a base, a threaded cap, a cylinder and a tapered liner piston, wherein the cylinder is fixed on the base and made of a light-proof steel material; a plurality of air holes are formed in the upper part of the cylinder, and the rear end of the cylinder is connected with the threaded cap; a tail hole is formed in the center of the threaded cap; threads are designed in the connection position of the threaded cap and the steel cylinder; the tapered liner piston is arranged at the front end of the cylinder, a sliding slot hole is formed in the top of the front end of the cylinder, and a switch of the tapered liner piston is arranged in the sliding slot hole. According to the mouse fixator, by means of the characteristic that a mouse likes dark corners, the light-proof material is used for manufacturing the cylinder; and after the mouse goes into the cylinder, the threaded cap is tightly screwed, and the tapered liner piston is adjusted to the appropriate position with the switch to limit moving of the mouse, so that an experimenter can conveniently perform experiment operation of tail vein injection on the mouse. The whole fixator is simple in structure, low in manufacturing cost and convenient to use, place and carry; and an operator cannot be bitten by the mouse during injection, thereby avoiding unnecessary harm.

Description

A kind of little rat holder

Technical field

This utility model relates to a kind of little rat holder.Particularly a kind of laboratory fixedly mice be exclusively used in the little rat holder of tail vein injection experiment.

Background technology

Mice is a kind of medical research laboratory animal commonly used, also is medical physiology, pharmacology, pathology.The conventional animal of subjects such as pathobiology experiment.Careful when grasping, can not be rough, in order to avoid it is injured; Steady and accurate again, otherwise bitten by it easily.But in medical research, carry out experimental implementation such as lumbar injection, intramuscular injection and tail vein injection by mice, realize different experiment purposes, have higher medical value.Often carry multiple virus in the mice body, for protecting the healthy of experimenter, prevent the outburst of infectious disease, so fixedly be one of problem that must solve at the trial to mice.

Usually use square plank as the fixing instrument of mice in the traditional experiment, the extremity of mice are be strained and fixed at square plank four jiaos of diagonal with rope or rubber band.This fixed form difficulty is big, need through could grasping after the training for a long time, and such fixed form very easily causes mice extremity incompleteness, has reduced the survival rate of mice.Though occurred some little rat holders at present, but general simple and easy little rat holder can not be by regulating the activity of restriction mice in holder, and there is the control method complexity in complicated little rat holder, and price is more expensive, has hindered its application in teaching and test.

Summary of the invention

The purpose of this utility model is to provide a kind of novel mouse holder easy and simple to handle, when mice is put into this holder, does not need specialized training, just can conveniently realize tail vein injection, and manufacturing cost is lower, and is simple in structure.

This utility model is achieved through the following technical solutions:

Little rat holder, comprise base, threaded cap, cylinder and taper inner bag piston, cylinder is fixed on the base, it is characterized in that: described cylinder is that light tight steel material is made, all the other position materials are made by the PU material, and there are several air-vents the cylinder top, and the cylinder rear end connects threaded cap, described threaded cap center has a uropore, and threaded cap and steel drum junction are screw thread design; The cylinder front end arranges taper inner bag piston, and cylinder front end tube has backed down a chute hole, and the switch of taper inner bag piston is located in the chute hole.

This utility model has utilized mice to like boring the characteristics of dark corners, uses light-proof material and makes cylinder, after mice enters, threaded cap is screwed, and regulate taper inner bag piston to correct position by switch, the activity of restriction mice makes things convenient for the laboratory technician that mice is implemented the tail vein injection experimental implementation.Whole fixer structure is simple, low cost of manufacture, and use, placement and easy to carry, and also mice can not avoid unnecessary damages the injection operator that the time not bite.

Description of drawings

Accompanying drawing 1 is structural representation of the present utility model;

Accompanying drawing 2 is the front view of this utility model threaded cap;

Accompanying drawing 3 is the left view of this utility model threaded cap;

Accompanying drawing 4 is the front view of this utility model cylinder;

Accompanying drawing 5 is the left view of this utility model cylinder;

Accompanying drawing 6 is the vertical view of this utility model cylinder;

1, threaded cap, 2, cylinder, 3, taper inner bag piston, 4, base, 5, air-vent, 6, uropore, 7, chute hole.

The specific embodiment

Embodiment

Consult Fig. 1 to Fig. 6, a kind of little rat holder comprises base 4, threaded cap 1, cylinder 2 and taper inner bag piston 3, and arrow is represented the direction that taper inner bag piston 3 advances.

Cylinder 2 is fixed on the base 4, and there are two air-vents 5 cylinder 2 tops, and cylinder 2 tops have a chute hole 7 at the front end place, and cylinder 2 front ends arrange taper inner bag piston 3, and the switch of piston taper inner bag piston 3 is located at chute hole 7.Threaded cap 1 connects with cylinder 2 rear ends.

Consult Fig. 2,3, threaded cap 1 awl end has a uropore 6, and threaded cap 1 is screw thread design with cylinder 2 junctions, makes it to screw difficult drop-off with cylinder.

Cylinder 2 is made for light tight steel material, and all the other position materials are made by the PU material.

Consult Fig. 1, mice holder working method is: mice likes boring dark corners, crawl into from the tail end of cylinder 2, threaded cap 1 and cylinder 2 are screwed, control taper inner bag piston 3 to correct position by push-on switch, restriction mice range of activity makes its tail expose and difficult drop-off from uropore 6, thereby finishes the tail vein injection experiment.

Claims

1. little rat holder, comprise base, threaded cap, cylinder and taper inner bag piston, cylinder is fixed on the base, it is characterized in that: described cylinder is that light tight steel material is made, there are several air-vents the cylinder top, the cylinder rear end connects threaded cap, and described threaded cap center has a uropore, and threaded cap and steel drum junction are screw thread design; The cylinder front end arranges taper inner bag piston, and cylinder front end tube has backed down a chute hole, and the switch of taper inner bag piston is located in the chute hole.