Rat caudal vertebra axial pressurizing device with controllable pressure

Abstract

The utility model relates to the technical field of animal experiment equipment, in particular to a pressure-controllable rat caudal vertebra axial pressurizing device which comprises a first fixing ring, a second fixing ring and a third fixing ring, the first fixing ring, the second fixing ring and the third fixing ring are concentrically distributed, a first fixing pipe is arranged on one side of the second fixing ring, and a second fixing pipe is arranged on the other side of the second fixing ring. A movable groove is formed in one side of the first fixing pipe, a second fixing pipe is arranged on one side of the first fixing ring, one end of the second fixing pipe extends into the movable groove, first needle holes are formed in the upper sides of the outer walls of the first fixing ring and the second fixing ring, and second needle holes are formed in the lower sides of the outer walls of the first fixing ring and the second fixing ring. The rat tail is limited, it is guaranteed that bending occurs when the rat caudal vertebra is pressurized, it is guaranteed that the pressurizing direction is the axial direction, and therefore the accuracy of experimental data is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to animal experiment equipment technical field especially, it relates to a pressure controllable rat tail vertebra axial pressure device. BACKGROUND

[0002] The rat tail vertebra axial pressure device is a device used in laboratory mouse research. This device is usually used to study the mechanical properties of the spine or skeletal system and related issues such as osteoporosis.

[0003] Patent No. CN207708039U discloses a mouse tail vertebra intervertebral disc dynamic pressure device, which pressurizes the mouse tail vertebra through the cooperation of the first fixing ring, the second fixing ring, the pressure motor and the shaft. Since the mouse tail vertebra is not limited, the mouse tail vertebra in this section may be bent, which affects the accuracy of the data and is not conducive to the experiment of the researchers. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model provides the following technical scheme:

[0005] A pressure controllable rat tail vertebra axial pressure device, comprising a first fixing ring, a second fixing ring and a third fixing ring, wherein the first fixing ring, the second fixing ring and the third fixing ring are concentrically arranged, the second fixing ring is provided with a first fixed tube on one side, the first fixed tube is provided with a movable slot on one side, the first fixing ring is provided with a second fixed tube on one side, and the second fixed tube extends into the movable slot.

[0006] As an improvement of the above technical scheme, first needle holes are formed on the outer wall of the first fixing ring and the second fixing ring, and second needle holes are formed on the lower side of the outer wall of the first fixing ring and the second fixing ring.

[0007] As an improvement of the above technical scheme, an extension tube is arranged on one side of each of the first needle holes and the second needle holes, and a Kirschner wire is arranged in each of the first needle holes and the second needle holes.

[0008] As an improvement of the above technical scheme, a screw is arranged on the first fixing ring, one end of the screw penetrates the second fixing ring and the third fixing ring, and a nut is arranged on both ends of the screw.

[0009] As an improvement of the above technical scheme, a spring is arranged on the screw, one end of the spring is connected to one side of the second fixing ring, and the other end of the spring is connected to one side of the third fixing ring.

[0010] As an improvement of the above technical scheme, the first fixing ring, the second fixing ring and the third fixing ring are all provided with weight reduction holes.

[0011] The utility model discloses beneficial effect: when moving first fixed ring to second fixed ring moves, drive mouse tail vertebra to move and start experiment, and first fixed pipe moves to the movable slot, under the action of first fixed pipe cooperation second fixed pipe, to mouse tail is positioned, guarantee when mouse tail vertebra pressurization, and the bending occurs, guarantee the pressurization direction is axial, thereby guarantee the accuracy of experimental data, facilitate the scientific researcher to carry out experiment. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a kind of pressure controllable rat tail vertebra axial pressurization device's three-dimensional structure schematic diagram;

[0013] Figure 2 It is a kind of pressure controllable rat tail vertebra axial pressurization device's sectional structure schematic diagram;

[0014] Figure 3 It is a kind of pressure controllable rat tail vertebra axial pressurization device's Figure 2 Enlarged schematic diagram of A in middle.

[0015] Fig. 1, first fixed ring;2, second fixed ring;3, third fixed ring;4, screw;5, nut;6, spring;7, first fixed pipe;8, movable slot;9, second fixed pipe;10, first pinhole;11, second pinhole;12, extension pipe;13, kirschner wire;14, weight-reducing hole. DETAILED DESCRIPTION

[0016] In order to make the utility model purposes, technical scheme and advantages more clearly, following further detailed description of the utility model is made.It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0017] Reference is made to the drawings Figures 1-3 To solve the above problems, the utility model provides a kind of pressure controllable rat tail vertebra axial pressurization device technical scheme:

[0018] A kind of pressure controllable rat tail vertebra axial pressurization device, including first fixed ring 1, second fixed ring 2, third fixed ring 3, first fixed ring 1, second fixed ring 2 and third fixed ring 3 concentric shaft distribution, second fixed ring 2 one side is equipped with first fixed pipe 7, first fixed pipe 7 one side is equipped with movable slot 8, first fixed ring 1 one side is equipped with second fixed pipe 9, and second fixed pipe 9 one end extends into movable slot 8.

[0019] When the first fixed ring 1 moves to the second fixed ring 2, the mouse tail vertebrae are moved to start the experiment, and the first fixed tube 7 moves into the movable groove 8, and the first fixed tube 7 cooperates with the second fixed tube 9 to limit the mouse tail, so that the mouse tail vertebrae are bent when the mouse tail vertebrae are pressed, the pressing direction is axial, and the accuracy of the experimental data is ensured, so that the researchers can conduct the experiment.

[0020] The first needle hole 10 and the second needle hole 11 are arranged in a staggered manner, when the Kirschner wire 13 penetrates, the collision between the two needles can be prevented, the Kirschner wire 13 can pass through the mouse tail vertebrae, the mouse tail vertebrae can be fixed, and the mouse tail vertebrae can be pressed in subsequent experiments.

[0021] The first needle hole 10 and the second needle hole 11 are arranged in a staggered manner, when the Kirschner wire 13 penetrates, the collision between the two needles can be prevented, the Kirschner wire 13 can pass through the mouse tail vertebrae, the mouse tail vertebrae can be fixed, and the mouse tail vertebrae can be pressed in subsequent experiments.

[0022] In order to facilitate understanding of the technical scheme of the present application, further description is made.

[0023] The first needle hole 10 and the second needle hole 11 are arranged in a staggered manner, when the Kirschner wire 13 penetrates, the collision between the two needles can be prevented, the Kirschner wire 13 can pass through the mouse tail vertebrae, the mouse tail vertebrae can be fixed, and the mouse tail vertebrae can be pressed in subsequent experiments.

[0024] The first fixed ring 1 is provided with a screw rod 4, one end of the screw rod 4 penetrates the second fixed ring 2 and the third fixed ring 3, and screw nuts 5 are arranged at both ends of the screw rod 4, the screw rod 4 can drive the first fixed ring 1 to move to the second fixed ring 2, the mouse tail vertebrae can be pressed, and the screw nuts 5 prevent the fixed ring from falling off the screw rod 4 and protect the device.

[0025] The spring 6 is sleeved on the screw rod 4, one end of the spring 6 is connected to one side of the second fixed ring 2, and the other end of the spring 6 is connected to one side of the third fixed ring 3, the spring 6 limits the second fixed ring 2, the mouse tail vertebrae can be pressed, and the spring modulus can be used to calculate the pressing force according to the length, so that the pressure on the mouse tail vertebrae can be controlled.

[0026] The first fixed ring 1, the second fixed ring 2 and the third fixed ring 3 are provided with weight reduction holes 14, the weight reduction holes 14 can reduce the weight of the equipment, and the rat can move and eat.

[0027] The above examples are only used to illustrate the technical scheme of the present application, but not to limit it.

Claims

1. A pressure-controllable axial compression device for rat tail vertebrae, comprising a first fixing ring (1), a second fixing ring (2), and a third fixing ring (3), characterized in that: The first fixed ring (1), the second fixed ring (2) and the third fixed ring (3) are concentrically arranged, one side of the second fixed ring (2) is provided with a first fixed tube (7), one side of the first fixed tube (7) is provided with a movable slot (8), one side of the first fixed ring (1) is provided with a second fixed tube (9), one end of the second fixed tube (9) extends into the movable slot (8).

2. The pressure-controllable axial compression device for rat tail vertebrae according to claim 1, characterized in that: The first fixed ring (1) and the second fixed ring (2) are provided with a first needle hole (10) on the outer wall of the upper side, and a second needle hole (11) on the outer wall of the lower side.

3. The pressure-controllable axial compression device for rat tail vertebrae according to claim 2, characterized in that: The first needle hole (10) and the second needle hole (11) are provided with an extension tube (12) on one side, and a Kirschner wire (13) is arranged in the first needle hole (10) and the second needle hole (11).

4. The pressure-controllable axial compression device for rat tail vertebrae according to claim 1, characterized in that: The first fixed ring (1) is provided with a screw rod (4), one end of the screw rod (4) penetrates the second fixed ring (2) and the third fixed ring (3), and both ends of the screw rod (4) are provided with a screw cap (5).

5. The pressure-controllable axial compression device for rat tail vertebrae according to claim 4, characterized in that: The screw rod (4) is provided with a spring (6), one end of the spring (6) is connected with one side of the second fixed ring (2), and the other end of the spring (6) is connected with one side of the third fixed ring (3).

6. The pressure-controllable axial compression device for rat tail vertebrae according to claim 1, characterized in that: The first fixed ring (1), the second fixed ring (2) and the third fixed ring (3) are provided with a weight reduction hole (14).

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