CN110638553B

CN110638553B - Fixing device is dissected to experimental animals

Info

Publication number: CN110638553B
Application number: CN201910945422.9A
Authority: CN
Inventors: 钱卫斌; 蔡欣蕊; 钱秋海
Original assignee: Affiliated Hospital of Shandong University of Traditional Chinese Medicine
Current assignee: Affiliated Hospital of Shandong University of Traditional Chinese Medicine
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-06-04
Anticipated expiration: 2039-09-30
Also published as: CN110638553A

Abstract

The invention discloses an experimental animal anatomy fixing device, and mainly relates to the field of animal experiments. Including fixed chassis and connecting rod, fixed chassis is circular structure, fixed chassis's week side is equipped with rather than the circular frame with the axle center, there is the spacing groove of being no less than 4 along circumference array on the circular frame, normal running fit has rather than the rolling disc with the axle center on the circular terminal surface of upside on fixed chassis, the rolling disc passes through electric drive, be equipped with the spout that corresponds with spacing groove quantity on the rolling disc, the spout just follows rolling disc circumference array for sharp spout, the extending direction of spout does not with the radial coincidence of rolling disc, the connecting rod runs through the spacing groove, and its one end exposes in the fixed chassis outside, the other end and spout sliding fit. The invention has the beneficial effects that: it can realize better fixed to the four limbs of animal, and fixed effect is firm, and the state of drawing the god of fixed back four limbs can also be convenient for adjust, makes the experiment go on smoothly.

Description

Fixing device is dissected to experimental animals

Technical Field

The invention relates to the field of animal experiments, in particular to an experimental animal anatomy fixing device.

Background

Animal dissection is a common technique in pathogenic experiments and pathological experiments, and is a direct means for separating target tissues (tumors and the like) and observing pathological changes of internal organs and tissues. It is generally necessary to perform the procedure without fixing the target animal. On the dissecting table, the animal is placed on the back (or on the stomach according to the requirement), and the limbs are fixed by nails for dissecting. This fixation is not secure and once the animal struggles, or undergoes neurological twitching due to surgical stimulation, the animal will fail to dissect.

It should be particularly noted that the limbs of the fixed animal are in an outward tensioned and opened state, but most of the abdominal skin of the animal needs to be cut off in the test, the abdominal skin is opened in a large range, the tensioned state of the limbs is lost, the body part and the limbs are transversely unfolded to a remarkable extent due to the separation of the skin on the two sides, and many of the fixed limbs cannot meet the unfolding requirement at this time, and the body part is prone to be inclined without being fixed again, so that the internal organs are squeezed and unclear.

Disclosure of Invention

The invention aims to provide an anatomical fixing device for an experimental animal, which can realize better fixation of four limbs of the animal, has firm fixation effect, and can facilitate adjustment of the mental state of the four limbs after fixation, so that the experiment can be smoothly carried out.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a fixing device is dissected to experimental animals, includes fixed chassis and connecting rod, fixed chassis is circular structure, fixed chassis's week side is equipped with rather than the circular frame with the axle center, there is the spacing groove of being no less than 4 along the circumference array on the circular frame, normal running fit has rather than the rolling disc with the axle center on fixed chassis's the circular terminal surface of upside, the rolling disc passes through electric drive, be equipped with the spout that corresponds with spacing groove quantity on the rolling disc, the spout is sharp spout and follows rolling disc circumference array, the extending direction of spout not with the radial coincidence of rolling disc, the connecting rod runs through the spacing groove, and its one end exposes in the fixed chassis outside, the other end and spout sliding fit.

The outer end of the connecting rod is hinged with a connecting plate, and a U-shaped groove plate is arranged on the connecting plate.

The sliding block is connected in the sliding groove in a sliding mode, the sliding block is provided with a connecting shaft, and the inner end of the connecting rod is in running fit with the connecting shaft.

The bottom surface of the fixed chassis is provided with a sucker, and the fixed chassis is fixed on the table top through the sucker.

The limiting groove, the sliding groove and the connecting rod are respectively provided with 5.

The outer end face of the rotating disc is fixed with a silica gel cushion layer corresponding to the rotating disc in size, a matching hole is formed in the silica gel cushion layer in a penetrating mode, and the size and the position of the matching hole correspond to the sliding groove.

Compared with the prior art, the invention has the beneficial effects that:

the device provided by the invention can effectively fix the limbs of the animal, keep the outwards tensioned and unfolded state, has firm fixing effect and avoids the problem that the limbs break loose due to the nerve reaction of the animal in the test. Simultaneously, the state of drawing god of four limbs after fixing can further be convenient for adjust, makes the animal remain better extension state throughout, guarantees that the experiment goes on smoothly.

Drawings

FIG. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the main view of the structure of the present invention.

Reference numerals shown in the drawings:

1. fixing the chassis; 2. rotating the disc; 3. a circular frame; 4. a limiting groove; 5. a chute; 6. a connecting rod; 7. u-shaped groove plate.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

Example (b): fixing device is dissected to experimental animals

Based on the above problems, we designed the present example device primarily for fixation of limbs, head, tail of the animal being dissected. Mainly comprises

The fixing base plate 1 is of a circular plate body structure, a sucker is arranged on the bottom surface of the fixing base plate 1 and used for being adsorbed on a table board to prevent the fixing base plate 1 from moving.

The fixing device is characterized in that a groove concentric with the fixing chassis 1 is formed in the circular end face of the outer side of the fixing chassis 1, a rotating disc 2 is arranged in the groove in a rotating fit mode, a rotating shaft is arranged between the rotating disc 2 and the fixing chassis 1 and is connected with the rotating disc in a rotating mode, and the rotating shaft is driven by electric power and specifically driven by a motor.

The circumference of recess is equipped with round circular frame 3, circular frame 3 is coaxial with fixed chassis 1, it has 5 spacing grooves 4 to go up along circumference array distribution along circular frame 3, spacing groove 4 is for running through the logical groove in 3 insides of circular frame and the outside.

The circumference array has 5 linear bar shape's spout 5 on rolling disc 2, the extending direction of spout 5 does not coincide with the radial line of rolling disc 2, sliding fit has the slider in the spout 5, be equipped with the connecting axle on the slider, it is connected with connecting rod 6 to rotate on the connecting axle, connecting rod 6 is the straight-bar, the plane at connecting rod 6 place is parallel with rolling disc 2, connecting rod 6 runs through spacing groove 4 and can slide in spacing groove 4 and stretch out and draw back. So that the link 6 can be extended outward or retracted inward with respect to the fixed chassis 1 when the rotating disc 2 is rotated.

And a silica gel cushion layer with the size corresponding to that of the outer circular end surface of the rotating disc 2 is arranged on the outer circular end surface of the rotating disc. Silica gel has the advantages of being convenient to clean and reducing bacterial breeding. Is used for being matched with a pin when fixing the abdominal epidermis. And the silica gel cushion layer is provided with a matching hole corresponding to the sliding groove 5.

The outer end of connecting rod 6 runs through spacing groove 4 and sets up in the outside of fixed chassis 1, the outer end of connecting rod 6 is equipped with rather than articulated connecting plate, be fixed with on the connecting plate rather than integrated into one piece's U type notch board 7, cooperation rubber band is used on the U type notch board 7 for fix four limbs, head, the tail of animal.

The method for fixing the animal by using the device comprises the following steps:

1) now, the rotating disc 2 is controlled to rotate anticlockwise, and the connecting rod 6 is retracted into the fixed chassis 1;

2) the four limbs, the head and the tail of the animal are respectively bundled on six U-shaped slot plates 7 in a matched manner with rubber bands;

3) after the animal is fixed, the rotating disc 2 is controlled to rotate clockwise, the connecting rod 6 is extended out, and the animal is pulled to be in a state that four limbs are unfolded;

4) after the abdomen is cut, the skin of the abdomen is turned outwards and is fixed on the silica gel backing plate through the pins;

5) continued rotation of the rotatable disc 2 by a suitable amount allows the limbs to continue to be drawn outwardly, maintaining the torso portion taut and spread.

The structure and the method can effectively fix the limbs of the animal, keep the outward tensioning and unfolding state and ensure the smooth operation of the anatomical experiment.

Claims

1. The utility model provides a fixing device is dissected to experimental animals, a serial communication port, including fixed chassis and connecting rod, fixed chassis is circular structure, fixed chassis's week side is equipped with rather than the circular frame with the axle center, there is not less than 4 spacing grooves along circumference array on the circular frame, normal running fit has rather than the rolling disc with the axle center on fixed chassis's the circular terminal surface of upside, the rolling disc passes through electric drive, be equipped with the spout that corresponds with spacing groove quantity on the rolling disc, the spout is sharp spout and follows rolling disc circumference array, the extending direction of spout not with the radial coincidence of rolling disc, the connecting rod runs through the spacing groove, and the outer end of connecting rod exposes in the fixed chassis outside, the inner and the spout sliding fit of connecting rod.

2. The experimental animal anatomy fixing device as claimed in claim 1, wherein the outer end of the connecting rod is hinged with a connecting plate, and the connecting plate is provided with a U-shaped groove plate.

3. The experimental animal dissection fixing device of claim 1, wherein a sliding block is slidably connected in the sliding groove, a connecting shaft is arranged on the sliding block, and the inner end of the connecting rod is rotatably matched with the connecting shaft.

4. The experimental animal anatomy fixing device as claimed in claim 1, wherein a suction cup is provided on the bottom surface of the fixing chassis, and the fixing chassis is fixed on the table top by the suction cup.

5. The experimental animal anatomy fixing device as claimed in claim 1, wherein there are 5 limiting grooves, 5 sliding grooves and 5 connecting rods.

6. The experimental animal dissection fixing device of claim 1, wherein a silica gel cushion layer corresponding to the size of the rotating disc is fixed on the end face of the outer end of the rotating disc, a matching hole is arranged on the silica gel cushion layer in a penetrating manner, and the size and the position of the matching hole correspond to the sliding groove.

7. The experimental animal dissection fixing device of claim 1, wherein a foam pad corresponding to the size of the rotating disc is fixed on the end face of the outer end of the rotating disc, a matching hole is arranged on the foam pad in a penetrating manner, and the size and the position of the matching hole correspond to the sliding groove.

8. The experimental animal anatomy fixing device as claimed in claim 4, wherein the suction cup is a vacuum negative pressure suction cup, and a suction port is provided on the suction cup, and the suction port is used for connecting a negative pressure system or a vacuum pump.