CN209966644U - Rat heart blood sampling fixing device - Google Patents

Abstract

The utility model discloses a rat heart blood sampling fixing device belongs to experimental apparatus technical field. The bottom plate top is equipped with four experimental mouse four limbs fixed columns all around, is equipped with the convenient draw-in groove of scraping about rope on the experimental mouse four limbs fixed column, and the bottom plate is equipped with the landing leg all around, wherein, still includes protruding pad, chest abdomen fixing device and advancing device, is equipped with the protruding pad that can fill up the experimental mouse back in the bottom plate headquarters, all is equipped with chest abdomen fixing device in protruding pad left and right sides, and chest abdomen fixing device passes through advancing device and can carry out front and back slide adjusting. Chest abdomen fixing device comprises slider, depression bar, torsional spring, driving lever, articulated seat, screw and splint, and advancing device comprises lead screw, fixing base, flange formula screw, rocking disc and bearing frame, and the device is when fixed four limbs, pushes down its antethorax and belly through the depression bar, can draw the health of living the rat, makes it reach better extension state to fill up the back of rat a little through protruding pad, make things convenient for the operator to aim at the heart of rat with the syringe needle.

Description

Rat heart blood sampling fixing device

Technical Field

The utility model relates to a rat heart blood sampling fixing device belongs to experimental apparatus technical field.

Background

When the heart of the rat is sampled, the rat is difficult to be firmly fixed by a common experimental plate, and the rat is easy to break loose. When the sleeve type fixator is used, the use requirements cannot be met due to the large volume difference of rats. Therefore, two workers usually pull the four limbs of the rat up and put the rat on the operation panel, and then perform heart blood collection by the other worker. However, even if three persons operate simultaneously, it is still difficult to insert the needle after aligning the heart of the rat for blood collection because the heart of the rat is small. On one hand, the body of the rat is easy to shake, and the rat is very easy to bite if being pressed by hands, and on the other hand, the breast bone of the rat is relatively soft and has villi, and the rat is difficult to find the position if the body is not straightened. In order to solve the above problems, the experimental operation of collecting blood from the heart of a rat often fails, and the operator is often easily injured, so that an auxiliary device is highly required.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies existing in the prior art, the utility model provides a rat heart blood sampling fixing device, effectual fixing the rat, can prop up its back slightly, make it keep sticking out the chest state to certain drawing plays firm effect, makes things convenient for the operator to aim at the heart of rat with the syringe needle, improves the experiment success rate, guarantees the safety of experiment.

The utility model provides a technical scheme that its technical problem adopted is: a rat heart blood sampling fixing device comprises a bottom plate, supporting legs and four limb fixing columns of a laboratory mouse, wherein the bottom plate is a rectangular plate body, four limb fixing columns of the laboratory mouse are arranged on the periphery of the top of the bottom plate, clamping grooves for conveniently scraping a restraint rope are formed in the four limb fixing columns of the laboratory mouse, the supporting legs are arranged on the periphery of the bottom plate, the rat heart blood sampling fixing device further comprises a convex pad, a chest and abdomen fixing device and a propelling device, the convex pad capable of lifting the back of the laboratory mouse is arranged at the head of the bottom plate, the chest and abdomen fixing devices are arranged on the left side and the right side of the convex pad, and the;

the chest and abdomen fixing device is composed of a sliding block, pressing rods, torsional springs, a driving rod, hinging seats, screws and clamping plates, a pair of sliding blocks are placed on the left side and the right side of a convex pad on a bottom plate, the sliding blocks are provided with the hinging seats towards the end surface of the convex pad, the hinging seats are hinged with the pressing rods of U-shaped, the end parts of the pressing rods of the U-shaped are bent downwards, the cross rods at the end parts of the pressing rods of the U-shaped are bent cross rods, the torsional springs for controlling the pressing rods to press downwards are arranged between the pressing rods and the hinging seats, the driving rod for controlling the swinging of the pressing rods is fixedly connected onto the side walls of the rod bodies of the pressing rods, a strip-shaped sliding groove is formed in the bottom plate below the sliding groove; the deflector rod can be tied with a hanging rope, a screw can be screwed in the sliding block, and the deflector rod is hung on the screw through the hanging rope, so that the pressure rod of the deflector rod is always kept in a lifting state.

The propelling device comprises a lead screw, a fixed seat, a flange-type nut, a rocking disc and a bearing seat, wherein the fixed seat is fixedly connected to the top of the left end and the right end of the bottom plate, round holes facing the sliding block are formed in the fixed seat, the flange-type nut is fixed in the round holes, the lead screw is screwed in the flange-type nut, one end of the lead screw is fixedly connected with the inner ring of the bearing seat through a jackscrew, the bearing seat is fixed on the sliding block, the other end of the lead screw is fixedly connected with the shaft hole of the rocking disc through the jackscrew, the rocking disc is rocked, the lead screw feeds towards the inner side of the flange-type nut, the sliding block is pushed to slide towards the convex pad on the sliding groove through the bearing seat, the rocking disc is turned over, the flange-type nut of the lead screw box feeds towards the outer side, the inner ring and the.

The utility model has the advantages that: the utility model provides a current rat fixing device is fixed insecure, it is great to lead to blood sampling in-process rat health to rock, make the unable problem of aiming at the blood sampling of operating personnel, can firmly fix the rat on the bottom plate, in fixed four limbs, push down its antetheca and belly through the depression bar, the depression bar front end is buckled, the card is in the armpit and the crotch both sides of rat, make the depression bar tractive live the rat's health through adjust the slider, make it reach better extension state, be equipped with protruding pad on the bottom plate, can slightly cushion the back of rat, make it keep sticking up the chest state, make things convenient for operating personnel to observe, make things convenient for the operator to aim at the heart of rat with the syringe needle, improve the success rate of experiment, guarantee that operating procedure in the rat can not break away from, avoid operating personnel to be bitten, improve the.

Drawings

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a bottom view of the present invention.

Fig. 5 is a schematic view of a partial structure of the present invention.

Fig. 6 is a top view of the present invention during operation.

Reference numbers in the figures:

1. the experimental mouse comprises a base plate, 2, supporting legs, 3, experimental mouse four-limb fixing columns, 4, a convex pad, 5, a sliding groove, 6, a sliding block, 7, a pressing rod, 8, a curved cross rod, 9, a torsion spring, 10, a shifting rod, 11, a propelling device, 12, a screw rod, 13, a fixing seat, 14, a flange type screw nut, 15, a rocking disc, 16, a bearing seat, 17, a hinge seat, 18, a screw, 19 and a clamping plate.

Detailed Description

As shown in fig. 1-5, a rat heart blood sampling fixing device comprises a bottom plate 1, supporting legs 2 and four limb fixing columns 3 of a laboratory mouse, wherein the bottom plate 1 is a rectangular plate body, four limb fixing columns 3 of the laboratory mouse are arranged on the periphery of the top of the bottom plate 1, clamping grooves convenient for scraping a restraint rope are arranged on the four limb fixing columns 3 of the laboratory mouse, the supporting legs 2 are arranged on the periphery of the bottom plate 1, the rat heart blood sampling fixing device further comprises a convex pad 4, a chest and abdomen fixing device and a pushing device 11, the convex pad 4 capable of lifting the back of the laboratory mouse is arranged at the head of the bottom plate 1, the chest and abdomen fixing devices are arranged on the left side and the right side of the;

the chest and abdomen fixing device comprises sliding blocks 6, pressing rods 7, torsion springs 9, a shifting rod 10, hinge seats 17, screws 18 and clamping plates 19, a pair of sliding blocks 6 are placed on the left side and the right side of a convex pad 4 on a bottom plate 1, the hinge seats 17 are arranged on the end faces, facing the convex pad 4, of the sliding blocks 6, the U-shaped pressing rods 7 are hinged on the hinge seats 17, the end parts of the U-shaped pressing rods 7 are bent downwards, the cross rods at the end parts of the U-shaped pressing rods 7 are bent cross rods 8, the torsion springs 9 for controlling the pressing rods 7 to press downwards are arranged between the pressing rods 7 and the hinge seats 17, the shifting rod 10 for controlling the pressing rods 7 to swing is fixedly connected onto the side wall of a rod body of the pressing rods 7, a long sliding groove 5 is formed in the bottom plate 1 below the sliding grooves 6, the clamping plates 19 are arranged below the sliding grooves 5 of the bottom plate 1, the clamping plates; a hanging rope can be tied on the deflector rod 10, a screw can be screwed into the sliding block 6, and the deflector rod 10 is hung on the screw through the hanging rope, so that the pressure rod 7 of the deflector rod is always kept in a lifting state.

The propulsion device 11 consists of a screw 12, a fixed seat 13, a flange-type screw nut 14, a rocking disc 15 and a bearing seat 16, the top parts of the left end and the right end of the bottom plate 1 are fixedly connected with a fixed seat 13, round holes facing the sliding block 6 are respectively arranged on the fixed seats 13, flange-type nuts 14 are respectively fixed in the round holes, screw rods 12 are screwed in the inner threads of the flange-type nuts 14, one end of each screw rod 12 is fixedly connected with the inner ring of a bearing seat 16 through a jackscrew, the bearing seats 16 are fixed on the sliding block 6, the other end of each screw rod 12 is fixedly connected with the shaft hole of a rocking disc 15 through the jackscrew, the rocking disc 15 is rocked, the screw rods 12 feed towards the inner sides of the flange, the sliding block 6 is pushed to slide to the convex pad 4 on the sliding chute 5 through the bearing seat 16, the rocking disc 15 is turned, the lead screw 12 is fed outside the flange-type nut 14, the inner ring and the bearing seat 16 fixedly connected with the inner ring move outwards along with the lead screw, and therefore the sliding block 6 fixedly connected with the bearing seat 16 slides outwards on the sliding chute 5.

When the lifting device is used, the pressing rod 7 is firstly turned over, the hanging rope on the lifting lever 10 can be scraped on the screw on the sliding block 6, the pressing rod 7 is kept in a lifting state, and the lifting lever 10 can be manually controlled to keep the pressing rod 7 in the lifting state. Then, as with the traditional fixing mode of the experimental mouse, the four limbs of the experimental mouse are fixed on the four limb fixing columns 3 of the experimental mouse through the restraint belts, and the back of the experimental mouse is positioned on the convex pads 4;

the deflector rod 10 is loosened, the bent cross rod 8 of the press rod 7 is pressed down at the chest and the belly of the laboratory mouse, the downward bent end of the front end of the press rod 7 is clamped at the two sides of the armpit of the upper limb and the crotch of the lower limb of the laboratory mouse, the left and right displacement of the two slide blocks 6 is controlled by shaking the rocking discs 15 at the two sides, the position of the laboratory mouse is micro-regulated, the back of the laboratory mouse is positioned right above the convex pad 4, the two sides of the armpit and the crotch of the laboratory mouse are clamped at the front end of the press rod 7, the laboratory mouse is firmly fixed on the bottom plate 1, and at the moment, the blood sampling of the heart of the rat can be easily and accurately carried out, the heart position of the rat is conveniently and convexly displayed, the needle head of.

Claims (1)

1. The utility model provides a rat heart blood sampling fixing device, includes bottom plate (1), landing leg (2) and laboratory mouse four limbs fixed column (3), and bottom plate (1) is a rectangular plate body, and bottom plate (1) top is equipped with four laboratory mouse four limbs fixed column (3) all around, is equipped with the convenient draw-in groove of scraping about rope on laboratory mouse four limbs fixed column (3), and bottom plate (1) bottom plate is equipped with landing leg (2), its characterized in that all around: the experimental mouse back cushion is characterized by further comprising a convex cushion (4), a chest and abdomen fixing device and a propelling device (11), wherein the convex cushion (4) capable of cushioning the back of a laboratory mouse is arranged at the headquarters of the base plate (1), the chest and abdomen fixing device is arranged on the left side and the right side of the convex cushion (4), and the chest and abdomen fixing device can be adjusted in a front-back sliding mode through the propelling device (11);

the chest and abdomen fixing device is composed of a sliding block (6), a pressing rod (7), a torsion spring (9), a shifting rod (10), a hinging seat (17), screws (18) and clamping plates (19), a pair of sliding blocks (6) are placed on the left side and the right side of a convex pad (4) on a bottom plate (1), the sliding blocks (6) are respectively provided with the hinging seat (17) towards the end surface of the convex pad (4), the hinging seats (17) are respectively hinged with the pressing rod (7) of a U shape, the end part of the pressing rod (7) of the U shape is downwards bent, the end part of the pressing rod (7) of the U shape is a bent cross rod (8), the torsion spring (9) for controlling the pressing rod (7) to downwards is arranged between the pressing rod (7) and the hinging seat (17), the shifting rod (10) for controlling the swinging of the pressing rod (7) is fixedly connected onto the side wall of the rod body of the pressing rod, a strip-shaped bottom plate (1), the clamping plate (19) is connected with the sliding block (6) through a screw (18), the screw (18) is positioned in the sliding groove (5), and the sliding block (6) can slide in the sliding groove (5) through the clamping plate (19) and the screw (18); a hanging rope can be tied on the deflector rod (10), a screw can be screwed into the sliding block (6), and the deflector rod (10) is hung on the screw through the hanging rope, so that the pressure rod (7) of the deflector rod is always kept in a lifting state;

the propelling device (11) consists of a lead screw (12), a fixed seat (13), a flange type screw nut (14), a rocking disc (15) and a bearing seat (16), wherein the fixed seats (13) are fixedly connected to the tops of the left end and the right end of the bottom plate (1), round holes facing the sliding block (6) are formed in the fixed seats (13), the flange type screw nuts (14) are fixed in the round holes, the lead screw (12) is screwed in the flange type screw nut (14) through internal threads, one end of the lead screw (12) is fixedly connected with the inner ring of the bearing seat (16) through a top screw, the bearing seat (16) is fixed on the sliding block (6), the other end of the lead screw (12) is fixedly connected with the shaft hole of the rocking disc (15) through the top screw, the rocking disc (15) is rocked, the lead screw (12) feeds to the inner side of the flange type screw nut (14), the sliding block (6) is pushed to slide to the convex pad (4) on the sliding chute (, the screw rod (12) is fed from the outer side of a box flange type nut (14), and the inner ring and a bearing seat (16) fixedly connected with the inner ring move outwards along with the screw rod, so that a sliding block (6) fixedly connected with the bearing seat (16) slides outwards on the sliding groove (5).

Images