CN201389096Y - Rabbit Muscle Strength Measurement Fixture - Google Patents

Abstract

The utility model relates to a fixing device for measuring rabbit muscle strength, which mainly includes a basic platform for placing the body of the tested animal, a support platform for placing the measured limb of the tested animal, and a support rod for installing the support platform , the pole is installed on the foundation platform, the support platform and the pole are flexibly connected, and the support platform obtains the degrees of freedom of movement in the two linear directions and the freedom of movement around the above two linear directions through the flexible connection. Rotational degrees of freedom, so as to realize the adjustment of pose. The device can fix the tested animal in several specific postures, so as to achieve the purpose of measuring the limb muscle strength of experimental animals such as rabbits. The device has a simple structure, flexible and convenient adjustment, and ensures reliable fixation without directly touching the measured object with hands, which speeds up the progress of the experiment and improves the reliability of the experimental data.

Description

Rabbit Muscle Strength Measurement Fixture

technical field

The utility model relates to a fixing device for animal experiments, which is particularly suitable for the fixing device used to make the tested animals in certain specific postures in the animal muscle strength measurement experiment.

Background technique

In order to assess the scope and degree of functional impairment of the nervous and muscular system, and to obtain data on changes in damaged muscle tissue, statistical data are usually obtained through a large number of repeated myometry experiments in live animals. In the experiment, because a certain muscle stimulation is applied to the living animal, it is often difficult to control the tested animal, which increases the difficulty of the experiment. In addition, the experiment often requires the tested animal to be in a certain posture, and its limbs to be tested are in certain positions. Specific angles, otherwise, the credibility of the experimental data will be reduced, which puts higher demands on the animal fixtures.

Utility model content

The purpose of this utility model is to provide a rabbit muscle strength measurement fixation device, which is used to reliably fix the tested animal in the animal muscle strength measurement experiment, so that the experiment can be completed smoothly, and in addition, the tested animal can be reliably placed in some specific conditions. attitude, to improve the credibility of the experimental data.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

A rabbit muscle strength measurement fixture, comprising a basic platform for placing the body of the measured animal, a support platform for placing the measured limb of the measured animal, and a pole for installing the support platform, the pole Installed on the foundation platform, the support platform is connected with the pole and located above the foundation platform.

The number of the supporting platforms is usually two, symmetrically distributed on the left and right sides, respectively connected to the corresponding support rods.

The support platform and the support rod adopt a flexible connection with multiple degrees of freedom, such as degrees of freedom of movement in two linear directions of left and right and front and rear, and degrees of freedom of rotation around the above two linear directions.

The connecting device of the movable connection may be composed of a positioning block having two V-shaped positioning surfaces perpendicular to each other in space and fastening screws matched with the V-shaped positioning surface, and the side of the positioning block facing the V-shaped surface The wall is provided with a threaded hole for screwing in the fastening screw, the support rod is positioned on a V-shaped positioning surface of the positioning block, and is fastened by the fastening screw matched with the positioning surface. A connecting rod is arranged on the outside of the supporting platform, and the connecting rod is positioned on the other V-shaped positioning surface of the positioning block, and is fastened by the fastening screw matched with the other V-shaped positioning surface.

A sloped and smooth groove for placing the measured limb of the animal to be measured can usually be provided on the surface of the support table.

The installation method of the support rods on the base platform can be that the base platform is provided with threaded holes corresponding to the respective support rods, and the respective support rods are respectively screwed into the respective corresponding threaded holes .

The installation method of the struts on the base platform can also be that the base platform is provided with T-shaped slots respectively corresponding to the struts, and the T-shaped slots are embedded with T-shaped nuts that fit with the clearance, The respective struts are respectively screwed on the respective corresponding T-shaped nuts.

A plurality of threaded holes may be provided on the outer surface of the support table, and the support table is connected with the connecting rod through one of the threaded holes, and position adjustment is realized by connecting different threaded holes.

The device can also usually be provided with an interface component for installation of the detection device, and the interface component is installed on the basic platform through the support rod of the detection device in a flexible connection mode. A positioning block of a V-shaped positioning surface and a fastening screw matched with the V-shaped positioning surface are formed. The side wall of the positioning block facing the V-shaped surface is provided with a threaded hole for screwing in the fastening screw. , the detection device pole is vertically connected on the basic platform, the positioning block is positioned on the detection device pole by one of the V-shaped positioning surfaces, and is fastened by the fastening screw matched with the positioning surface , the other V-shaped positioning surface on the positioning block and its matching fastening screws are used as the installation interface of the detection device.

The sides of the outer periphery of the support platform can usually be provided with Velcro-type binding straps for fixing the limbs of the animal under test.

The utility model has the advantages of simple structure, flexible and convenient adjustment, and the measured animal can be reliably placed in certain specific postures without manual assistance in fixing the measured object. It is of great significance for a large number of repetitive experiments, which can improve efficiency and speed up the progress. At the same time, the repeatability is good, making the data more credible and convincing. Due to the flexible and adjustable structure, the determination of multiple postures can be realized on a fixed device, which improves the adaptability of the device itself.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the support platform of the present utility model;

Fig. 3 is a structural schematic diagram of the positioning block of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1, 2, and 3, a kind of embodiment of rabbit muscle strength measurement fixture includes the base platform 1 for placing the body of the tested animal, the supporting platform 2 for placing the measured limb of the tested animal and It is used to install the pole 5 of the supporting platform 2. The base platform 1 is provided with a plurality of threaded holes corresponding to the respective struts 5, and each strut is respectively screwed into the corresponding threaded holes, and the two support platforms are symmetrically distributed on the left and right sides, and are respectively connected to their respective The corresponding support rod 5 is located above the foundation platform 1 .

A flexible connection is adopted between the support table 2 and the pole 5, and the connecting device of the flexible connection is composed of a positioning block 7 with two V-shaped positioning surfaces 13 perpendicular to each other in space and a fastening screw 8 matched with the V-shaped positioning surfaces. , the side wall facing the V-shaped surface of the positioning block is provided with a threaded hole 14 for screwing in the fastening screw, and the pole 5 is positioned on a V-shaped positioning surface 13 of the positioning block 7 , and fastened by the fastening screw 8 matching the positioning surface, the outside of the support table 2 is provided with a connecting rod 6, the connecting rod 6 is positioned on the other V-shaped positioning surface of the positioning block 7, and is formed by The other V-shaped positioning surface is fastened with a matching fastening screw.

Loosen the fastening screw on one side of the pole on the positioning block 7, the position of the positioning block 7 along the pole 5 in the height direction can be changed, and the swing angle of the positioning block 7 around the axis of the pole 5 can also be changed, thereby driving the chain The rod 6 and the support platform 2 finally realize the position adjustment of the support platform 2 relative to the basic platform 1 along the linear direction of the support rod 5 and the adjustment of the rotation angle around the axis of the support rod 5; loosen the fastening screw on the side of the connecting rod on the positioning block 7, The position of the connecting rod 6 along its own axis in the horizontal plane can be changed, and at the same time, the rotation angle of the connecting rod 6 around its own axis can be changed, thereby driving the supporting platform 2 to realize the linear direction position of the supporting platform 2 relative to the basic platform 1 along the connecting rod 6 Adjust and adjust the angle of rotation around the axis of the connecting rod 6; because the two V-shaped positioning surfaces on the positioning block 7 are vertical, the strut 5 and the connecting rod 6 are perpendicular to each other. The displacement adjustment of the two linear directions where the connecting rod 6 is located and the adjustment of the rotation angle around the above two linear directions change the pose of the support platform 2 relative to the foundation platform 1 .

In this embodiment, the support platform 2 adopts an L-shaped structure, and there is a smooth groove 12 with a slope on the surface of the platform, which is used to place the measured limb of the tested animal. There are 3 threaded holes on the outer surface of the support platform 2, and the support platform 2 is connected with the connecting rod 6 through one of the threaded holes. Relative position adjustment in the direction perpendicular to the connecting rod 6.

In order to avoid harm to the tested animals, the material of the support block 2 in this embodiment is wood.

To sum up, relative to the base platform 1, the support platform 2 can realize the adjustment of a total of five degrees of freedom in 3 linear directions and 2 axial directions at most, so as to adapt to different posture requirements in different measurement items to the greatest extent, and can eliminate the same Individual differences among animals, and fixation that can be extended to similar animal experiments, especially to experiments that require multiple animal postures.

The base platform 1 is also provided with an interface component for the installation of the detection device. The interface component adopts a flexible connection, and the connection device of the flexible connection consists of a positioning block 7 with two V-shaped positioning surfaces 13 perpendicular to each other in space and a V-shaped positioning surface. The fastening screw 8 supporting the V-shaped positioning surface is composed of a threaded hole 14 for screwing in the fastening screw on the side wall of the positioning block facing the V-shaped surface, and the detection device pole 4 is vertically connected to the V-shaped surface. On the basic platform 1, the positioning block 7 is installed on the detection device pole 4 by utilizing one of the V-shaped positioning surfaces and the fastening screw matched with the positioning surface, and the positioning block 7 can be changed along the detection device by loosening the fastening screw. The position of the pole 4 in the height direction can also change the swing angle of the positioning block 7 around the axis of the pole 4 of the detection device, thereby changing the installation height and deflection angle in the horizontal plane of the detection device. Another V-shaped positioning surface on the positioning block 7 and the fastening screws matched with the positioning surface are reserved as the installation interface of the detection device. The detection device in this example is the tension sensor 9 , and its protective wire steel pipe is positioned and installed in the above-mentioned reserved installation interface. The fixing device is not only used for fixing the tested animals in live animal experiments, but can even complete experimental operations such as on-line measurement at the same time by installing the detection device on it.

Velcro straps 10 and 3 can be used to fix the measured animal body and measured limbs on the basic platform 1 and the supporting platform 2 respectively.

As other possible solutions, such as the foundation platform 1 can be provided with T-shaped slots, embedded in the T-shaped slots are T-shaped nuts that fit with the gap, and each support rod and detection device support rod can be respectively screwed on the respective corresponding said On the T-shaped nut, its installation position can be adjusted along the T-shaped slot, which further expands the flexibility of adjustment. It should be noted that for those skilled in the art, many other modifications and improvements can be made without departing from the concept of the utility model, and these should also be regarded as belonging to the protection scope of the utility model.

Below borrow present embodiment to illustrate the using method of the present utility model:

1. Determination of knee extension muscle strength: Place the rabbit on its back and fix the body with a binding belt 10 or other similar objects on the basic platform 1 of the rabbit muscle strength measurement fixture, and place the rabbit's calf in the smooth groove 12 of the support platform 2 , adjust the height and space angle of the support platform 2, so that the hip joints of the rabbit are flexed to 120 degrees, the knee joints are flexed to 90 degrees, and the rabbit’s calf is on the support platform 2. Rabbit shanks. The ankle joint of the leg on the support platform 2 is connected on the tension sensor 9 . On the basis of the above fixing device, the knee extensor muscle (quadriceps femoris) is stimulated to straighten the knee joint, and the muscle strength of the quadriceps femoris can be measured.

2. Measurement of flexor muscle strength: Place the rabbit on its back and fix the body with a binding strap 10 or other similar objects on the basic platform 1 of the rabbit muscle strength measurement fixture, place the rabbit's forearm in the smooth groove 12 of the support platform 2, Adjust the height and space angle of the support platform 2 so that the rabbit's shoulder joint flexes 90 degrees, and the elbow joint flexes 90 degrees. After adjustment, fix the rabbit's forearm on the support platform 2 with a bandage 3 . The end of the middle finger to be measured is connected to the tension sensor 9 . On the basis of the above fixing device, the flexor muscles are stimulated to make the middle finger flex, and the muscle strength of the flexor muscles can be measured.

3. Determination of ankle plantarflexion muscle strength: place the rabbit on its back and fix the body with a binding belt 10 or other similar objects on the basic platform 1 of the rabbit muscle strength measurement fixture, and place the front of the rabbit's calf on the smooth surface of the support platform 2. In the groove 12, adjust the slope of the support platform 2, so that the hip joint of the rabbit is naturally bent, and the knee joint is flexed by 90 degrees. After adjustment, the rabbit calf on the support platform 2 is fixed with a bandage 3 . Fix the feet on the support platform 2 on the tension sensor 9. On the basis of the above-mentioned fixation device, the calf muscle (gastrocnemius) is stimulated to make the ankle joint plantarflex, and the muscle strength of the gastrocnemius muscle can be measured.

Claims (10)

1, a kind of rabbit muscle strength test fixture, it is characterized in that: comprise the basic platform that is used to place tested animal body, be used to place brace table of tested limbs of tested animal and the pole that is used to install described brace table, described pole is installed on the described basic platform, described brace table is connected with described pole, is positioned at the top of described basic platform.

2, rabbit muscle strength test fixture according to claim 1, the quantity that it is characterized in that described brace table is two, is symmetrically distributed in the left and right sides, is connected on each self-corresponding described pole.

3, rabbit muscle strength test fixture according to claim 2 is characterized in that adopting between described brace table and the described pole having multivariant flexible connection.

4, rabbit muscle strength test fixture according to claim 2, it is characterized in that adopting between described brace table and the described pole and flexibly connect, the connecting device of described flexible connection is formed by the locating piece with orthogonal two the V-type locating surfaces in space with the supporting trip bolt of V-type locating surface, sidewall over against described V-type face on the described locating piece is provided with the screwed hole that is used to screw in described trip bolt, described pole is positioned on the V-type locating surface of described locating piece, and by fastening with the supporting trip bolt of this locating surface, the outside of described brace table is provided with connecting rod, described connecting rod is positioned on another V-type locating surface of described locating piece, and fastening by the supporting trip bolt of this another V-type locating surface.

5, rabbit muscle strength test fixture according to claim 4 is characterized in that described brace table table top is provided with a slick and sly groove with a slope that is used to place the tested limbs of tested animal.

6, rabbit muscle strength test fixture according to claim 4, it is characterized in that described pole is to be provided with on the described basic platform respectively and the corresponding screwed hole of described each pole at the mounting means of described basic platform, described each pole is screwed in respectively in each self-corresponding described screwed hole.

7, rabbit muscle strength test fixture according to claim 4, it is characterized in that described pole is to be provided with corresponding with described each pole respectively T type groove on the described basic platform at the mounting means of described basic platform, the embedded T type nut with its matched in clearance of described T type groove, described each pole is screwed in respectively on each self-corresponding described T type nut.

8, rabbit muscle strength test fixture according to claim 4 is characterized in that described brace table lateral surface is provided with a plurality of screwed holes, and described brace table is connected with described connecting rod by one in the described screwed hole.

9, according to the described rabbit muscle strength test of arbitrary claim fixture in the claim 1 to 8, it is characterized in that also being provided with the interface component that is used for the checkout gear installation, described interface component adopts movable connection method to be installed on the described basic platform by checkout gear pole, the connecting device of described flexible connection is formed by the locating piece with orthogonal two the V-type locating surfaces in space with the supporting trip bolt of V-type locating surface, sidewall over against described V-type face on the described locating piece is provided with the screwed hole that is used to screw in described trip bolt, described checkout gear pole is vertically connected on the described basic platform, described locating piece utilizes one of them V-type locating surface to be positioned on the described checkout gear pole, and by fastening with the supporting trip bolt of this locating surface, another V-type locating surface on the described locating piece and the trip bolt supporting with it are as the mounting interface of checkout gear.

10,, it is characterized in that being provided for the fixed velcro formula of tested animal limb bundling belt in described brace table circumferential lateral surface according to the described rabbit muscle strength test of arbitrary claim fixture in the claim 1 to 8.

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