CN221154393U - Rat femur fixing device that punches - Google Patents

Abstract

The utility model belongs to the technical field of medical experimental equipment, and discloses a rat femur punching fixing device, which comprises a bottom plate, wherein the bottom plate is connected with a fixing block, the fixing block is connected to the upper side of the bottom plate in a sliding way, the fixing block is provided with a placing groove capable of placing the upper half part of a rat body, the bottom plate is connected with a lower limb fixing component, the lower limb fixing component comprises a first screw rod, the first screw rod is rotatably arranged through the bottom plate, the first screw rod is in threaded connection with a moving block, the inside of the moving block is rotatably connected with a second screw rod, the second screw rod is in threaded connection with the lower limb fixing block, a height adjusting knob is arranged through the moving block and is connected and transmitted with the second screw rod through a bevel gear, the first screw rod is used for adjusting the horizontal position of the lower limb fixing block, and the height adjusting knob is used for adjusting the height of the lower limb fixing block; the utility model solves the problem that the prior art lacks a rat fixing device for rat femur perforation operation, and is suitable for rat perforation operation.

Description

Rat femur fixing device that punches

Technical Field

The utility model relates to the technical field of medical experimental equipment, in particular to a rat femur perforation fixing device.

Background

To study the pathogenesis of bone necrosis, rats are the most commonly used animal model. Minimally invasive punctures of the femoral head are often required during treatment of the femoral head necrosis model of the rat. The current common means is to drill holes with a k-wire, then ream with a syringe needle, and finally inject the drug. When the rat is drilled, the rat needs to be anesthetized, the rat lies on the side of the placement platform, one hand supports the lower limb of the rat, the other hand holds the instrument to ream the femur head in the direction of the proximal femur head near one side of the rat body, the success rate of the operation is low due to the lack of the fixing device for the rat, the stability is poor, and the labor intensity of experimental staff can be increased when the lower limb of the rat is supported for a long time, so that the rat femur drilling fixing device is needed.

Disclosure of utility model

The utility model aims to provide a rat femur perforation fixing device which aims to solve the problem that a rat fixing device for rat femur perforation operation is lacking in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

The basic technical scheme provided by the utility model is as follows: the utility model provides a rat femur fixing device that punches, comprising a base plate, bottom plate top sliding connection has the fixed block, the fixed block is equipped with places the recess, the fixed block is connected with the fixed band, fixed block threaded connection has locking bolt, locking bolt wears to establish the fixed block, the bottom plate top is equipped with the locking recess that cooperation locking bolt used, the bottom plate is equipped with low limbs fixed subassembly, low limbs fixed subassembly includes first lead screw and altitude mixture control knob, first lead screw rotates wears to establish the bottom plate, first lead screw threaded connection has the movable block, altitude mixture control knob wears to establish the movable block, the inside rotation of movable block is connected with the second lead screw, second lead screw and altitude mixture control knob pass through bevel gear transmission, second lead screw threaded connection has low limbs fixed block, low limbs fixed block is connected with low limbs fixed band.

The principle of the basic technical scheme is as follows: the fixed block can slide for the device can be to the not unidimensional rat, is used for placing the upper half of the health of rat in the recess, and the fixed band can be fixed the upper half of the health of rat, and the frictional force that produces after locking bolt down screw in locking recess can be fixed the fixed block, can be fixed the rat low limbs on the low limbs fixed block through the low limbs fixed band, can adjust the height and the horizontal position of low limbs fixed block through rotatory first lead screw and high adjust knob.

The basic technical scheme has the beneficial effects that: the fixed block can be slidably adjusted, can punch the operation to the not unidimensional rat, the lower limb of rat is fixed on the lower limb fixed block, and the lower limb fixed block can hold up the lower limb of rat, when carrying out operations such as incision, punching to the lower limb of rat, the lower limb fixed block can provide holding power for the rat lower limb is stable, improves the accuracy and the stability of operation, and the lower limb fixed block can carry out altitude mixture control, and horizontal position adjusts, can adjust the position of rat lower limb at the beginning of the operation and in-process of operation, makes things convenient for experimenter to carry out operation to the rat lower limb.

Preferably, the number of the lower limb fixation assemblies is two, and the two lower limb fixation assemblies are symmetrically arranged along the midline of the bottom plate.

Through the setting, can adjust two fixed subassemblies simultaneously for two fixed subassemblies are fixed with the rat centre gripping, have improved fixed effect, also can conveniently punch the operation to the lower limb of rat both sides simultaneously.

Preferably, the lower limb fixing block is of an L-shaped structure, and the side wall of the lower limb fixing block is connected with a cotton pad.

Through above-mentioned setting, can increase the area of contact of fixed block and rat health, further improve the fixed effect of centre gripping, set up the cotton pad and can prevent that the fixed block from causing unnecessary injury to the rat health.

Preferably, the bottom of the fixed block is connected with a plurality of rollers sliding along the upper surface of the bottom plate.

Through the arrangement, the sliding effect of the fixed block is improved, and the fixed block can be better adjusted in a sliding mode.

Preferably, a sponge cushion is connected in the placing groove.

By the arrangement, the damage to the body of the upper half part of the rat can be reduced.

Drawings

FIG. 1 is a block diagram of the present utility model;

FIG. 2 is a cross-sectional view of a traveling block of the present utility model;

The names of the corresponding marks in the drawings are: the lower limb fixing device comprises a base plate 1, a fixing block 2, a lower limb fixing assembly 3, a placing groove 21, a fixing belt 22, a locking bolt 23, a locking groove 24, a roller 25, a first screw 31, a moving block 32, an adjusting knob 33, a second screw 34, a lower limb fixing block 35 and a lower limb fixing belt 36.

Detailed Description

The utility model is described in further detail below with reference to the attached drawings and embodiments:

As shown in fig. 1-2, a rat femur perforation fixing device comprises a bottom plate 1, the top of the bottom plate 1 is slidably connected with a fixing block 2 through a chute, the bottom of the fixing block 2 is connected with four rollers 25 sliding along the upper surface of the bottom plate 1, the fixing block 2 is provided with a placement groove 21, a foam cushion is connected in the placement groove 21, two sides of the placement groove 21 at the top of the fixing block 2 are connected with fixing belts 22, a locking bolt 23 penetrates through the fixing block 2, the locking bolt 23 is connected with the fixing block 2 through threads, the upper surface of the bottom plate 1 at the lower side of the fixing block 2 is provided with a locking groove 24, the locking bolt 23 can be screwed into the locking groove 24, two lower limb fixing assemblies 3 are symmetrically arranged at the right side of the fixing block 2, a first screw 31 is rotatably arranged through the bottom plate 1, the first screw 31 is connected with a moving block 32 through threads, the inside of the moving block 32 is rotatably connected with a second screw 34, the bottom of the second screw 34 is connected with a foam cushion, a height adjusting knob 33 penetrates through the moving block 32, the front end of the height adjusting knob 33 is connected with a bevel gear 34, the bevel gear of the height adjusting knob 33 is meshed with the bevel gear of the second screw 34, the second screw 34 is connected with the bevel gear of the cotton cushion 35, the lower limb fixing assemblies 35 are connected with the lower limb fixing structures 35, and the lower limb fixing structures 35 are fixedly connected with the lower limb structures.

The specific implementation process is as follows: firstly, the fixing block 2 is slid and adjusted to a position suitable for the body shape of a rat, the locking bolt 23 is screwed into the locking groove 24 downwards, so that the fixing block 2 is fixed, the rat is changed into a state of lying sideways, then the upper half part of the body of the rat is placed into the placing groove 21 and is fixed by the fixing belt 22, the first lead screw 31 at two sides is rotated, so that the two lower limb fixing blocks 35 are mutually close, the lower half part of the body of the rat is clamped, the lower limb of the rat is placed on the lower limb fixing blocks 35, the lower limb fixing belts 36 are used for fixing the lower limb, the first lead screw 31 and the height adjusting knob 33 can be rotated to adjust before and during operation, the first lead screw 31 is rotated, the moving block 32 horizontally moves, the lower limb fixing blocks 35 are horizontally moved by the moving block 32, the height adjusting knob 33 is rotated, the second lead screw 34 is driven by the bevel gear to rotate, the lower limb fixing blocks 35 are lifted or lowered, and the height and the horizontal position of the lower limb fixing blocks 35 can be adjusted, so that the operation personnel can conveniently operate.

The foregoing is merely exemplary embodiments of the present utility model, and detailed technical solutions or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (5)

1. A rat femur fixing device that punches which characterized in that: including bottom plate (1), bottom plate (1) top sliding connection has fixed block (2), fixed block (2) are equipped with places recess (21), fixed block (2) are connected with fixed band (22), fixed block (2) threaded connection has locking bolt (23), locking bolt (23) wear to establish fixed block (2), bottom plate (1) top is equipped with the cooperation locking recess (24) that locking bolt (23) used, bottom plate (1) is equipped with low limbs fixed subassembly (3), low limbs fixed subassembly (3) include first lead screw (31) and high adjust knob (33), first lead screw (31) rotate and wear to establish bottom plate (1), first lead screw (31) threaded connection has movable block (32), high adjust knob (33) wear to establish movable block (32), movable block (32) inside rotation is connected with second lead screw (34), second lead screw (34) with high adjust knob (33) are through transmission bevel gear, second lead screw (34) are connected with low limbs fixed by fixed connection low limbs (35).

2. The rat femoral hole punch fixture of claim 1, wherein: the number of the lower limb fixing assemblies (3) is two, and the two lower limb fixing assemblies (3) are symmetrically arranged along the midline of the bottom plate (1).

3. A rat femoral hole punch fixture as defined in claim 2, wherein: the lower limb fixing block (35) is of an L-shaped structure, and the side wall of the lower limb fixing block (35) is connected with a cotton pad.

4. The rat femoral hole punch fixture of claim 1, wherein: the bottom of the fixed block (2) is connected with a plurality of rollers (25) sliding along the upper surface of the bottom plate (1).

5. The rat femoral hole punch fixture of claim 1, wherein: the placing groove (21) is connected with a sponge cushion.