CN201586093U - Rat fixing device - Google Patents

Abstract

The utility model relates to a rat fixing device consisting of a fixed groove and a movable cover, wherein the fixed groove is provided with a small bottom and a large opening, an inlet is opened, the bottom of the groove is provided with an opening, and a side wall of the groove is provided with a fixed bracket; and after a cambered contact plate of the movable cover and the bottom of the fixed groove are folded oppositely so as to form a narrow space, and the movable cover can be fixed at different height at the side wall of the fixed groove through rotary knobs on two wings so as to adjust the size of the space between the fixed groove and the cambered contact plate. After being firmly fixed, the entire device can be arranged bottom up on an operation desk so that the opening at the bottom of the fixed groove can face upwards. The fixing device is applicable to rats with different weights, and has the advantages of firm fixation, convenient operation, reduction on injury of the rats and capability of leading operators to accomplish the operations without contacting the rats, thereby reducing the risk of being bitten by the rats and being especially applicable to the rats which need to be frequently experimented time after time.

Description

The rat fixture

Affiliated technical field

This utility model relates to a kind of fixture of experimental rat, is particularly useful for carrying out repeatedly experimental implementation and the rat that is difficult to compounding practice.

Background technology

Rat is a kind of important experimental subject, the rat volume is relatively large, struggle strength is difficult to control greatly, sting the people easily, rat after particularly repeatedly experimentizing is particularly evident, thereby increased the experiment difficulty, delayed the experiment process, had the danger that injures the experimenter, the normal physiological function of the experimental rat of being in a tumult to a certain extent.Use a kind of fixture of saving experimental period, avoiding rat to bite, reduce to seem indispensable to the rat injury.

Present fixture is columned stationary magazine creel mostly, need rat to pierce in the tube, utilize the different design limit activities in rats of barrel and then reach fixed effect, but the rat of experimental implementation repeatedly, be difficult to enter in the tube like a cork, all there is the operation that will put into the medium contact rat of tube to some extent by the tractive tail in present existing scheme, be prone to rat in this process and can not enter fixture smoothly, later sting the people, struggle injures situations such as experimenter, also exist after entering in the tube can't regulate easily and can't limit activities in rats securely because of the diameter of stationary magazine creel, make rat become more irascible and can not cooperate experiment, and then influence the experiment progress, and operation is comparatively complicated, and having increased the rat physiological status may by the factor generation of influence experiments such as disturbance.In addition, existing holder size relative fixed, for the suitable ability shortcoming of the different rat of body weight, the holder that needs to prepare different size fixes the bigger experimental rat of bodyweight difference.

Therefore, the existing fixed device all exist in various degree fixing not firm, easily injure that experiment operator, laboratory animal misery are big, poor to the rat adaptive capacity of different weight, experimental implementation complicated and expend time in and problem such as grow.

Summary of the invention

The novel purpose of this experiment is to overcome the above-mentioned deficiency of existing rat fixture, and a kind of new design is provided, and is applicable to the rat of various body weight, and is fixed, easy to operate, reduced the injury to experimenter and rat.

The technical scheme that its technical problem that solves this utility model adopts is: the big end of fixedly notch of this device, is little, suitable for reading enough big.There are four lateral columns the holddown groove both sides as support.The funnelform design of holddown groove, inner wall smooth and enough dark make rat enter this device easily and rat are limited in bottom of device.The opening of using when ventilation and experimental implementation are arranged at the holddown groove bottom.Can force rat roll up at the bottom of box after lid covers, can't move.Link to each other by revolving axle between lid both wings and the arc contact plate, can the folding both wings, both wings can be fixed on the bayonet socket of two side of holddown groove by four knobs, and interlock bayonet socket diverse location can be adjusted the height of arc contact plate at the bottom of with respect to holddown groove.Lid contact rat and the fixing position of rat are to have certain toughness and elastic material, and the part of rat Body contact device is under pressure relatively equably.

The beneficial effects of the utility model are:

1. to make that operator contact time of rat very short for this device, in addition can avoid directly contacting rat just can complete operation, lowered to the full extent by rat bite may;

2. this device can carry out the operation such as lumbar injection, tail vein injection of rat quickly and easily and be easy to clean;

3. this device has reduced the injury to rat to a great extent, has reduced under the situation of extraneous stimulation and has finished experiment;

4. this device is suitable for same rat most and repeatedly tests, the very ill-matched situation of rat, and perhaps many rats, especially body weight are difficult to the rat that catches greater than the ferociousness of 150g, can directly be poured into into this device from cage and operate;

5. this device is through carrying out the aforesaid operations of the less and rat that is more or less the same of many body weight simultaneously;

6. one of this device advantage is: all be suitable for to old Mus from young Mus, do not have the shortcoming that adapts to the different weight rat when the excessive or too small device that is difficult to operate, need plurality of specifications of rat volume.

Description of drawings

Below in conjunction with drawings and Examples this utility model is further specified.

Fig. 1 is a upright structure chart of the present utility model,

Fig. 2 is a handstand structure chart of the present utility model,

Fig. 3 is the structure chart of holddown groove.

Fig. 4 is the removable lid structure chart.

1. holddown grooves among the figure, the 2. both wings of removable cover, the 3. opening of holddown groove bottom, the 4. arc contact plate of removable cover, 5. be positioned at holddown groove two walls can with the bayonet socket of cover plate knob interlock, what 6. connect removable cover revolves axle and knob, 7. holddown groove support

The specific embodiment

Holddown groove (1) is placed on the platform, can make opening up, because opening is far longer than the rat volume by the support (7) of both sides, can place groove to rat like a cork, perhaps be poured directly in the groove, because cell wall is smooth and the inclination angle is very big, rat can only be subject to bottom land.Removable cover (2) is inserted in the loose slot, make arc contact plate (4) contact rat back, the gap is narrow and small between lid and the holddown groove sidewall, rat is pressed into bottom land by lid, the space rat that is limited to after involutory can only make its cephalocaudal axis consistent with bottom land, tail can be deviate from device automatically or involves with the have gentle hands pine by opening (3), removable cover (2) slightly firmly pressurizes, so that can't moving, rat is degree, the lid both wings are fixed in the two side of holddown groove by four knobs (8), be inverted whole device, the opening (3) along the holddown groove bottom can involve the rat tail or mention skin of abdomen this moment, carried out operations such as tail venipuncture or abdominal paracentesis, the whole device of rear stand is finished in operation, the knob of outwarding winding takes out lid, picks up holddown groove and directly rat is poured into mouse cage or other places to be transferred.

Claims (4)

1. a rat fixture comprises holddown groove and removable cover, it is characterized in that: the regular triangular prism that holddown groove main body likeness in form is sidelong, and it is big to be end osculum, and the bottom is slick cambered surface, and there is a thin-and-long opening center, bottom; Removable cover is made up of the rectangular slab and the medial arc plate of both sides, can adjust the openings of sizes of lid by intermediary coupling part, and the removable cover biside plate can be fixed on the wall of holddown groove by four knobs.

2. rat fixture according to claim 1 is characterized in that: holddown groove and removable cover are the hard pmma material of hyalomitome, and the involutory part in curved cover plate and holddown groove bottom is for having pliability and elastic material.

3. rat fixture according to claim 1 is characterized in that: by means of the support of holddown groove both sides, holddown groove can be positioned on the plane stably, and after the inversion, fixedly notch can be used as the end, stably places a certain plane.

4. rat fixture according to claim 1 is characterized in that: push in opposite directions with the arc contact plate of removable lid by the holddown groove bottom and can form a relative narrow space; The extent of opening of removable lid can be fixed in the different height in holddown groove two side by four knobs to be adjusted.

Images