CN112168413B - Rat tail intravenous route assists fixing device - Google Patents

Abstract

The invention discloses a rat tail vein injection auxiliary fixing device, which comprises: the mouse comprises a mouse body fixing cylinder and a mouse tail fixing rod, wherein the mouse tail fixing rod is arc-shaped, one end of the mouse tail fixing rod is connected with the mouse body fixing cylinder, two air bag fixing clamping assemblies are arranged at the end, far away from the mouse body fixing cylinder, of the mouse tail fixing rod at intervals, and the air bag fixing clamping assemblies are sleeved on the mouse tail fixing rod. According to the auxiliary fixing device for the tail intravenous injection of the rat, the rat body is firmly fixed in the rat body fixing cylinder, the rat body cannot climb out, the rat tail cannot shake after being fixed with the rat tail fixing rod through the air bag fixing and clamping assembly, so that the rat tail is completely fixed, the rat tail cannot be crushed, and a pharmaceutical researcher can conveniently insert the blood taking needle into the rat tail to take blood.

Description

Rat tail intravenous route assists fixing device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a rat tail vein injection auxiliary fixing device.

Background

During the drug research process, it is often necessary to collect blood from rats to detect the drug concentration level therein, so as to evaluate the in vivo process and efficacy of the drug. Among them, many studies require that blood samples be continuously collected from the same rat several times over a period of time (e.g., 72 hours), but since the rat is not large enough, only limited sites such as tail vein, orbital vein and heart are available for blood collection. The tail vein is generally the first choice for experimenters according to the requirement of continuous blood sampling in experiments, and although the tail vein of rats is difficult to sample blood relative to the orbit vein and the heart, the tail vein of rats also has great difficulty because of the following reasons: firstly, the rat tail surface is keratinized and has certain fine scales, and a needle head for blood collection is just inserted into a blood vessel and does not penetrate the blood vessel, so that the operation difficulty is high; secondly, the tail vein of the rat is thin and is not easy to prick; thirdly, the rat tail is movable and is not in a static state and is bound by experimenters; fourthly, the length of the rat tail is fixed, once the needle fails to prick, the blood sampling point can only move to the tail root, and the rest blood sampling points can be gradually reduced. Therefore, there is a need to provide a rat tail vein injection auxiliary fixing device to at least partially solve the problems in the prior art.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to at least partially solve the above problems, the present invention provides a rat tail vein injection auxiliary fixing device, comprising: the mouse comprises a mouse body fixing cylinder and a mouse tail fixing rod, wherein the mouse tail fixing rod is arc-shaped, one end of the mouse tail fixing rod is connected with the mouse body fixing cylinder, two air bag fixing clamping assemblies are arranged at the end, far away from the mouse body fixing cylinder, of the mouse tail fixing rod at intervals, and the air bag fixing clamping assemblies are sleeved on the mouse tail fixing rod.

Preferably, the fixed centre gripping subassembly of gasbag includes sliding block, two arc gasbag fingers, sliding block central point put be equipped with the corresponding first arc hole of mouse tail dead lever, the lower extreme of sliding block is equipped with first recess, first recess lower extreme runs through the sliding block, the upper end of first recess with first arc hole is linked together, equal fixedly connected with arc gasbag finger on two relative lateral walls of first recess.

Preferably, the arc curved surface of the arc gasbag finger is fixedly communicated with a plurality of bulges, and the arc gasbag finger and the inner surfaces of the bulges are provided with anti-prick layers.

Preferably, be equipped with two breather pipes in the sliding block, two the one end of breather pipe is linked together with two arc gasbag fingers respectively, two the other end of breather pipe outwards extends the protrusion the sliding block, two the breather pipe protrusion the intermediate position of the one end of sliding block is equipped with the stop valve.

Preferably, the breather pipe to the sliding block outside direction is kept away from the one end of stop valve all communicates there is aerating device, aerating device is including aerifing the ball, one end is equipped with the check valve of breathing in aerifing the ball, and the other end is equipped with the check valve of giving vent to anger, the end intercommunication of giving vent to anger of the check valve has the trunk line of aerifing, it keeps away from to aerify the trunk line the one end intercommunication of the check valve of giving vent to anger has two to aerify the branch pipeline, two aerify the branch pipeline respectively with the breather pipe to the sliding block outside direction is kept away from the one end of stop valve is linked together.

Preferably, the mouse tail fixing rod is made of transparent hard materials, and a blood vessel display lamp is arranged in the mouse tail fixing rod.

Preferably, still include lift rotary platform, lift rotary platform includes fixed plate, telescopic link, runing rest, the bottom of telescopic link with fixed plate fixed connection, the top with runing rest's upper end fixed connection, the telescopic link is used for lift rotary platform height's regulation.

Preferably, the rotating bracket comprises a U-shaped rotating seat, two rotating shafts and a platform, the bottom of the U-shaped rotating seat is fixedly connected with the telescopic rod, the outer side surface of the U-shaped rotating seat is provided with a through hole for installing the rotating shafts, the two ends of the through hole are respectively provided with a second groove and a third groove, the depth of the second groove is greater than that of the third groove, the bottom surface of the second groove forms a first step surface, the bottom surface of the third groove forms a second step surface, the outer surface of the rotating shaft is provided with two fourth grooves, snap springs for limiting the rotating shafts to move along the axial direction are arranged in the fourth grooves, the two snap springs are respectively positioned in the second groove and the third groove, the snap springs in the third grooves abut against the second step surface, and a positioning plate is arranged between the snap springs in the second groove and the first step surface, the positioning plate is abutted to the first step surface through the clamp spring, the two rotating shafts protrude inwards, one end of the U-shaped rotating seat is fixedly connected with the two opposite side surfaces of the platform, the rotating shafts are arranged at one ends in the rotating seats, a plurality of external teeth are uniformly distributed along the circumferential direction of the rotating shafts, the external teeth are located between the two fourth grooves, and the platform is fixedly connected with the mouse body fixing cylinder.

Preferably, the runing rest still includes control assembly, control assembly includes control block, direction of rotation switch button and spring block, be equipped with on the control block with rotation axis surface engaged with tooth's socket mutually, the lateral surface of U-shaped roating seat be equipped with the corresponding fifth recess of control block, the control block lower surface is equipped with the arc recess of indent, spring block one end supports and leans on the cell wall of arc recess, the other end is connected on the direction of rotation switch button, the below of fifth recess is equipped with the sixth recess, the direction of rotation switch button with the bottom surface rotatable coupling of sixth recess, the below of sixth recess is equipped with the seventh recess, the sixth recess the seventh recess all sets up on the lateral surface of U-shaped roating seat.

Preferably, the mouse body fixing cylinder is made of hard cloth or soft plastic.

Compared with the prior art, the invention at least comprises the following beneficial effects:

according to the auxiliary fixing device for the tail vein injection of the rat, the rat body is firmly fixed in the rat body fixing cylinder, the rat body cannot climb out, the rat tail cannot shake after being fixed with the rat tail fixing rod through the air bag fixing and clamping assembly, so that the rat tail is completely fixed, the rat tail cannot be crushed, a drug researcher can conveniently insert the rat tail into the blood taking needle for blood taking, in addition, when the blood taking needle is preferably a scalp needle, and after the scalp needle is pricked into the tail vein of the rat to see blood, the scalp needle and the blood taking tube can be fixed on the rat tail fixing rod through a medical adhesive tape, and the scalp needle and the blood taking tube cannot fall out due to rat shaking.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is an assembly schematic diagram of a rat body fixing cylinder, a rat tail fixing rod and an air bag fixing and clamping assembly in the rat tail vein injection auxiliary fixing device.

Fig. 2 is a sectional schematic view of a sliding block in the rat tail vein injection auxiliary fixing device according to the present invention.

Fig. 3 is a schematic sectional view at a-a in fig. 1.

Fig. 4 is a schematic structural diagram of an inflation device in the rat tail vein injection auxiliary fixing device.

Fig. 5 is a schematic structural view of a lifting and rotating platform in the rat tail vein injection auxiliary fixing device according to the present invention.

Fig. 6 is a schematic view of the assembly of the rotating shaft and the platform in the rat tail vein injection auxiliary fixing device of the invention.

Fig. 7 is a schematic structural view of the assembly of the side wall, the rotating shaft and the control assembly of the U-shaped rotating seat in the rat tail vein injection auxiliary fixing device according to the present invention.

Fig. 8 is a schematic structural view of a side wall of a U-shaped rotating seat in the rat tail vein injection auxiliary fixing device according to the present invention.

Fig. 9 is a sectional structural diagram of a side wall of a U-shaped rotating seat in the rat tail vein injection auxiliary fixing device according to the present invention.

Fig. 10 is an assembly schematic diagram of a control assembly and a rotating shaft in the rat tail vein injection auxiliary fixing device according to the present invention.

Fig. 11 is a schematic structural diagram of a control assembly in the rat tail vein injection auxiliary fixing device according to the present invention.

Fig. 12 is a schematic view of the rat body fixing barrel, the rat tail fixing rod and the airbag fixing and clamping assembly in the rat tail vein injection auxiliary fixing device of the invention being assembled for storage and preservation.

1 is a mouse body fixing cylinder, 2 is a rat tail fixing rod, 3 is an air bag clamping component, 3-1 is a sliding block, 3-1-1 is a first arc-shaped hole, 3-1-2 is a first groove, 3-2 is an air bag finger, 3-2-1 is a bulge, 3-3 is an air pipe, 3-4 is a stop valve, 5 is an inflation device, 5-1 is an inflation ball, 5-2 is an air suction one-way valve, 5-3 is an air outlet one-way valve, 5-4 is an inflation main pipeline, 5-5 is an inflation branch pipeline, 6 is a blood vessel display lamp, 7 is a rotary platform, 7-1 is a fixing plate, 7-2 is a telescopic rod, 7-3 is a rotary bracket, 7-3-1 is a U-shaped rotary seat, 7-3-1-1 is a through hole, and 7-3-1-2 is a second groove, 7-3-1-2-1 is a first step surface, 7-3-1-3 is a third groove, 7-3-1-3-1 is a second step surface, 7-3-1-4 is a fifth groove, 7-3-1-5 is a sixth groove, 7-3-1-6 is a seventh groove, 7-3-2 is a rotating shaft, 7-3-2-1 is a fourth groove, 7-3-2-2 is an outer tooth, 7-3-3 is a platform, 7-3-4 is a snap spring, 7-3-5 is a positioning plate, 7-3-6 is a control component, 7-3-6-1 is a control block, 7-3-6-1 is a tooth socket, 7-3-6-1-2 is an arc groove, 7-3-6-2 is a rotating direction switching button, and 7-3-6-3 is a spring block.

Detailed Description

The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 12, the present invention provides a rat tail vein injection auxiliary fixing device, comprising: the mouse tail fixing rod comprises a mouse body fixing barrel 1 and a mouse tail fixing rod 2, wherein the mouse tail fixing rod 2 is arc-shaped, one end of the mouse tail fixing rod 2 is connected with the mouse body fixing barrel 1, two airbag fixing clamping assemblies 3 are arranged at the interval of one end, far away from the mouse body fixing barrel 1, of the mouse tail fixing rod 2, and the airbag fixing clamping assemblies 3 are sleeved on the mouse tail fixing rod 2.

The working principle of the technical scheme is as follows: when in use, firstly, the air bag fixing and clamping component 3 is inflated, then a rat is placed into the rat body fixing cylinder 1, the rat body fixing cylinder 1 can be tensioned through a magic tape, a rubber band and the like, the rat body and the rat body fixing cylinder 1 are firmly fixed, the rat cannot climb out of the rat body fixing cylinder 1, the rat body fixing cylinder 1 can be fixed with other platforms through the magic tape and the rubber band so as to facilitate the orientation, angle and height adjustment of the rat tail, then the position of the air bag fixing and clamping component 3 is adjusted, the rat tail is pressed into the air bag fixing and clamping component 3, the air bag fixing and clamping component 3 compresses the rat tail for fixing, in addition, the inflation degree of the air bag fixing and clamping component 3 can be adjusted, the rat tail can be better protected from being crushed by reducing the inflation degree under the condition of pressing and fixing, if the rat tail is not compressed sufficiently, the inflation degree can be increased to better compress the rat tail, effectively fix rat tail, and the fixed centre gripping subassembly 3 of gasbag that is close to the fixed section of thick bamboo 1 of mouse body can suitably increase the degree of inflating, and the rat tail internal vein blood vessel behind the fixed centre gripping subassembly 3 of gasbag that is close to the fixed section of thick bamboo 1 of mouse body shows more clearly, makes things convenient for thing researcher to insert the blood sampling needle to rat tail and takes a blood sample.

The beneficial effects of the above technical scheme are that: through the design of the structure, the rat body in the rat tail vein injection auxiliary fixing device is firmly fixed in the rat body fixing cylinder 1, the rat body cannot climb out, the rat tail cannot shake after being fixed with the rat tail fixing rod 2 through the air bag fixing clamping assembly 3, so that the complete fixing of the rat tail is completed, the rat tail cannot be crushed, a drug researcher can conveniently insert the blood taking needle into the rat tail to take blood, in addition, when the blood taking needle preferentially selects a scalp needle, after the scalp needle is pricked into the rat tail vein to see blood, the scalp needle and the blood taking tube can be fixed on the rat tail fixing rod 2 through a medical adhesive tape, and the scalp needle and the blood taking tube cannot fall out due to the shaking of the rat tail.

In one embodiment, the air bag fixing and clamping assembly 3 comprises a sliding block 3-1 and two arc-shaped air bag fingers 3-2, a first arc-shaped hole 3-1-1 corresponding to the rat tail fixing rod 2 is formed in the center of the sliding block 3-1, a first groove 3-1-2 is formed in the lower end of the sliding block 3-1, the lower end of the first groove 3-1-2 penetrates through the sliding block 3-1, the upper end of the first groove 3-1-2 is communicated with the first arc-shaped hole 3-1-1, and the arc-shaped air bag fingers 3-2 are fixedly connected to two opposite side walls of the first groove 3-1-2.

The working principle of the technical scheme is as follows: the sliding block 3-1 can be provided with a sliding boss so that the sliding block 3-1 can slide on the mouse tail fixing rod 2, after the sliding block 3-1 is adjusted to slide along the mouse tail fixing rod 2-1, the sliding block 3-1 and the mouse tail fixing rod 2 can be positioned in a mode that a screw (not shown in the figure) penetrates through the sliding block 3-1 and then props against the mouse tail fixing rod 2; two arc-shaped air sac fingers 3-2 fixedly connected to two opposite side walls of the first groove 3-1-2 can effectively squeeze and fix rat tail.

The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, the position of the fixed rat tail of 3 fixed centre gripping subassemblies of accessible slider 3-1 adjustment gasbag, and the fixed centre gripping subassembly of gasbag is pointed 3-2 through arc gasbag and is extruded fixedly to rat tail, makes things convenient for the pharmaceutical research personnel to insert the blood sampling needle to rat tail and takes a blood sample.

In one embodiment, a plurality of protrusions 3-2-1 are fixedly communicated with the arc-shaped curved surface of the arc-shaped air bag finger 3-2, and the inner surfaces of the arc-shaped air bag finger 3-2 and the protrusions 3-2-1 are provided with anti-prick layers.

The working principle of the technical scheme is as follows: the fingers 3-2 and the bulges 3-2-1 of the arc-shaped air bag are made of flexible materials, so that the rat tail can be well extruded without being damaged; the anti-prick layer can be fixedly connected with the inner surfaces of the arc-shaped air bag fingers 3-2 and the bulges 3-2-1 in a gluing mode or integrally formed;

the beneficial effects of the above technical scheme are that: through the design of the structure, the rat tail is firmly fixed by the bulge 3-2-1 on the finger 3-2 of the arc-shaped air bag, the rat tail does not shake, and a physical researcher can conveniently insert the blood taking needle into the rat tail to take blood; the arrangement of the puncture-proof layer can effectively protect the fingers 3-2 and the bulges 3-2-1 of the arc-shaped air bag from being punctured by the blood taking needle, and the service life of the fingers 3-2 of the arc-shaped air bag is prolonged.

In one embodiment, two vent pipes 3-3 are arranged in the sliding block 3-1, one ends of the two vent pipes 3-3 are respectively communicated with two arc-shaped air bag fingers 3-2, the other ends of the two vent pipes 3-3 extend outwards to protrude out of the sliding block 3-1, and a stop valve 3-4 is arranged in the middle position of one end of the two vent pipes 3-3 protruding out of the sliding block 3-1.

The working principle of the technical scheme is as follows: after the stop valve 3-4 is opened, the arc-shaped air sac fingers 3-2 are inflated through the vent pipe 3-3, the gap between the two inflated arc-shaped air sac fingers 3-2 is smaller than the diameter of the rat tail, so that the rat tail is effectively extruded, in addition, the single arc-shaped air sac finger 3-2 can be controlled through the stop valve 3-4 to extrude the rat tail, the two arc-shaped air sac fingers 3-2 are ensured to be inflated basically in a consistent manner, and the rat tail is firmly fixed; in addition, the inflation degree of the arc-shaped air bag fingers 3-2 can be controlled through the stop valves 3-4, the inflation degree of the two arc-shaped air bag fingers 3-2 close to the mouse body fixing barrel 1 can be properly larger than that of the two arc-shaped air bag fingers 3-2 far away from the mouse body fixing barrel 1, so that the rat tail can be better squeezed, and the tail vein blood vessels in the rat tail behind the two arc-shaped air bag fingers 3-2 close to the mouse body fixing barrel 1 can be more clearly displayed.

The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, two fixed centre gripping subassemblies of gasbag 3 can be with the firm regulation of rat tail, and the fixed centre gripping subassembly of gasbag 3 that is close to the solid fixed section of thick bamboo of mouse 1 can suitably increase the degree of inflating, and the rat tail internal vein blood vessel behind the fixed centre gripping subassembly of gasbag 3 that is close to the solid fixed section of thick bamboo of mouse 1 is more clear shows, makes things convenient for the pharmaceutical research personnel to insert the blood sampling needle to rat tail and takes a blood sample.

In one embodiment, the end of the vent pipe 3-3, which is far away from the stop valve 3-4 in the direction outside the sliding block 3-1, is communicated with an inflation device 5, the inflation device 5 comprises an inflation ball 5-1, one end of the inflation ball 5-1 is provided with an air suction one-way valve 5-2, the other end is provided with an air outlet one-way valve 5-3, the air outlet end of the air outlet one-way valve 5-3 is communicated with an inflation main pipe 5-4, one end of the inflation main pipe 5-4, which is far away from the air outlet one-way valve 5-3, is communicated with two inflation branch pipes 5-5, and the two inflation branch pipes 5-5 are respectively communicated with one end of the vent pipe 3-3, which is far away from the stop valve 3-4 in the direction outside the sliding block 3-1.

The working principle of the technical scheme is as follows: squeezing the inflatable ball 5-1 by hand, wherein gas in the inflatable ball 5-1 flows from the air outlet one-way valve 5-3 through the inflatable main pipeline 5-4 and the inflatable branch pipeline 5-5 to one end of the air pipe 3-3 far away from the stop valve 3-4 towards the outer side of the sliding block 3-1, the squeezing of the inflatable ball 5-1 is released, and air outside the inflatable ball 5-1 enters the inflatable ball 5-1 through the air suction one-way valve 5-2 under the action of atmospheric pressure; after the stop valve 3-4 is opened, the inflation ball 5-1 is loosened by repeatedly squeezing and loosening the squeezing of the inflation ball 5-1, so that the inflation of two arc-shaped air bag fingers 3-2 is completed, the stop valve 3-4 can be closed after the inflation is completed, the inflation device 5 is removed for standby or the other two arc-shaped air bag fingers 3-2 are inflated, if the inflation degree of the arc-shaped air bag fingers 3-2 is too large, the stop valve 3-4 can be opened after the inflation device 5 is removed, the air in the arc-shaped air bag fingers 3-2 is properly released, and the rat tail is prevented from being crushed.

The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, aerating device 5 can continuously aerify two arc gasbag fingers 3-2 to extrude the rat tail effectively, the rat tail is firmly fixed, makes things convenient for the drug research personnel to insert the blood sampling needle to the rat tail and takes a blood sample.

In one embodiment, the rat tail fixing rod 2 is made of a transparent hard material, and a blood vessel display lamp 6 is arranged in the rat tail fixing rod 2.

The working principle of the technical scheme is as follows: the rat tail fixing rod 2 is made of transparent hard materials, so that the rat tail does not drive the rat tail fixing rod 2 to shake; the blood vessel display lamp 6 has certain toughness, and set up the inside at rat tail dead lever 2, the switch and the power (not shown in the figure) of blood vessel display lamp 6 all set up in the outside of the solid fixed cylinder 1 of mouse body, blood vessel display lamp 6, switch and power electrical connection become closed circuit, the convenient work of controlling blood vessel display lamp 6 of switch, after rat tail and rat tail dead lever 2 firmly steps up through arc gasbag finger 3-2, open the switch of blood vessel display lamp 6, the more clear demonstration of tail vein blood vessel in the rat tail.

The beneficial effects of the above technical scheme are that: through the design of the structure, the rat tail and the rat tail fixing rod 2 are firmly fixed, and the tail vein blood vessel can be clearly displayed through the blood light display lamp 6, so that a drug researcher can conveniently insert the rat tail into the blood taking needle for blood taking; inside blood vessel display lamp 6 arranged in 2 dead levers of rat tail in addition, reduce blood vessel display lamp 6 and occupy 2 exterior spaces of dead lever of rat tail, make things convenient for the medicine researcher to insert the blood taking needle to the rat tail and take a blood sample.

In one embodiment, the lifting and rotating platform 7 is further included, the lifting and rotating platform 7 comprises a fixed plate 7-1, a telescopic rod 7-2 and a rotating bracket 7-3, the bottom of the telescopic rod 7-2 is fixedly connected with the fixed plate 7-1, the top of the telescopic rod 7-2 is fixedly connected with the upper end of the rotating bracket 7-3, and the telescopic rod 7-2 is used for adjusting the height of the lifting and rotating platform 7.

The working principle of the technical scheme is as follows: the fixed plate 7-1 can be connected with an experiment table top or the ground according to actual needs; the telescopic rod 7-2 can be selected to be electrically or manually telescopic according to actual needs, so that the rotary bracket 7-3 is driven to ascend or descend; the mouse body fixing barrel 1 can be fixed with the rotating support 7-3 through a magic tape, a rubber band and the like, so that the orientation and the angle of the mouse tail can be conveniently adjusted.

The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, the orientation and angle, the height of rat tail all can be adjusted, are suitable for the drug research personnel of different heights, make things convenient for drug research personnel to insert the blood taking needle with comfortable posture to rat tail and take a blood sample.

In one embodiment, the rotating bracket 7-3 comprises a U-shaped rotating seat 7-3-1, two rotating shafts 7-3-2 and a platform 7-3-3, the bottom of the U-shaped rotating seat 7-3-1 is fixedly connected with the telescopic rod 7-2, through holes 7-3-1-1 for installing the rotating shafts 7-3-2 are arranged on the outer side surfaces of the U-shaped rotating seat 7-3-1, a second groove 7-3-1-2 and a third groove 7-3-1-3 are respectively arranged at two ends of the through hole 7-3-1-1, the depth of the second groove 7-3-1-2 is greater than that of the third groove 7-3-1-3, a first step surface 7-3-1-2-1 is formed on the bottom surface of the second groove 7-3-1-2, a second step surface 7-3-1-3-1 is formed on the bottom surface of the third groove 7-3-1-3, two fourth grooves 7-3-2-1 are formed on the outer surface of the rotating shaft 7-3-2, snap springs 7-3-4 for limiting the axial movement of the rotating shaft 7-3-2 are arranged in the fourth grooves 7-3-2-1, the two snap springs 7-3-4 are respectively positioned in the second groove 7-3-1-2 and the third groove 7-3-1-3, and the snap springs 7-3-4 in the third grooves 7-3-1-3 abut against the second step surface 7-3-1, the third step surface 7-3 and the third step surface 7-3-1, and the snap springs 7-3 are positioned in the third grooves 7-3 On the second step surface 7-3-1-3-1, a positioning plate 7-3-5 is arranged between the clamp spring 7-3-4 in the second groove 7-3-1-2 and the first step surface 7-3-1-2-1, the clamp spring 7-3-4 enables the positioning plate 7-3-5 to abut against the first step surface 7-3-1-2-1, one end of the two rotating shafts 7-3-2, which protrudes inwards from the U-shaped rotating base 7-3-1, is fixedly connected with two opposite side surfaces of the platform 7-3-3, one end of the rotating shafts 7-3-2, which is arranged in the rotating base 7-3-1, is uniformly provided with a plurality of outer teeth 7-3-2-2 along the circumferential direction thereof, the outer teeth 7-3-2-2 are located between the two fourth grooves 7-3-2-1, and the platform 7-3-3 is fixedly connected with the mouse body fixing barrel 1.

The working principle of the technical scheme is as follows: the clamp spring 7-3-4 and the positioning plate 7-3-5 limit axial displacement of the rotating shaft 7-3-2, a gap is reserved between the outer teeth 7-3-2-2 and the through hole 7-3-1-1, the rotating shaft 7-3-2 can freely rotate in the through hole 7-3-1-1, and the positioning plate 7-3-5 abuts against the first step surface 7-3-1-2-1 and can prevent foreign matters from entering the through hole 7-3-1-1.

The beneficial effects of the above technical scheme are that: through the design of the structure, the rotating shaft 7-3-2 can freely rotate in the through hole 7-3-1-1, foreign matters cannot enter the through hole 7-3-1-1, and the service life of the rotating shaft 7-3-2 is longer.

In one embodiment, the rotating bracket 7-3 further comprises a control assembly 7-3-6, the control assembly 7-3-6 comprises a control block 7-3-6-1, a rotating direction switching button 7-3-6-2 and a spring block 7-3-6-3, the control block 7-3-6-1 is provided with a tooth groove 7-3-6-1-1 engaged with the outer surface of the rotating shaft 7-3-2, the outer side surface of the U-shaped rotating seat 7-3-1 is provided with a fifth groove 7-3-1-4 corresponding to the control block 7-3-6-1, the lower surface of the control block 7-3-6-1 is provided with an inward concave arc-shaped groove 7-3-6-1-2, one end of the spring block 7-3-6-3 is propped against the groove wall of the arc-shaped groove 7-3-6-1-2, the other end is connected with the rotating direction switching button 7-3-6-2, a sixth groove 7-3-1-5 is arranged below the fifth groove 7-3-1-4, the rotating direction switching button 7-3-6-2 is rotatably connected with the bottom surface of the sixth groove 7-3-1-5, a seventh groove 7-3-1-6 is arranged below the sixth groove 7-3-1-5, the sixth groove 7-3-1-5 and the seventh groove 7-3-1-6 are arranged on the outer side surface of the U-shaped rotating seat 7-3-1.

The working principle of the technical scheme is as follows: the seventh groove 7-3-1-6 is used for limiting the rotating direction switching button 7-3-6-2, so that the spring block 7-3-6-3 cannot be separated from the arc-shaped groove 7-3-6-1-2 when the rotating direction switching button 7-3-6-2 rotates leftwards or rightwards; the tooth grooves 7-3-6-1-1 on the control block 7-3-6-1 are in different directions, when the left and right sides of the spring block 7-3-6-3 abut against the arc-shaped groove 7-3-6-1-2 at the bottom of the control block 7-3-6-1, the control block 7-3-6-1 can incline leftwards or rightwards, when the spring block 7-3-6-3 acts on the left side of the arc-shaped groove 7-3-6-1-2, the control block 7-3-6-1 inclines rightwards, and at the moment, the rotating shaft 7-3-2 can rotate anticlockwise and is locked clockwise; when the spring block 7 acts on the right side of the arc-shaped groove 7-3-6-1-2, the control block 7-3-6-1 inclines to the left, and at the moment, the rotating shaft 7-3-2 can rotate clockwise and is locked in the counterclockwise direction; the control components 7-3-6 on two sides of the U-shaped rotating seat 7-3-1 are symmetrically arranged, the rotating direction switching button 7-3-6-2 on the left side rotates rightwards, the rotating direction switching button 7-3-6-2 on the right side rotates rightwards or the rotating direction switching button 7-3-6-2 on the left side rotates leftwards, the rotating direction switching button 7-3-6-2 on the right side rotates leftwards, the two rotating shafts 7-3-2 can rotate along one direction, the platform 7-3-3 is further driven to rotate, when the platform reaches a proper angle, the two rotating direction switching buttons 7-3-6-2 are adjusted to the same side, and the position of the platform 7-3-3 is fixed.

The beneficial effects of the above technical scheme are that: through the design of the structure, after the rat fixing cylinder 1 fixes the rat body fixing cylinder 1 and the platform 7-3-3 through the magic tape and the rubber band, the platform 7-3-3 can adjust the orientation and the angle of the rat tail, and a drug researcher can conveniently insert the blood taking needle into the rat tail to take blood in a comfortable posture.

In one embodiment, the mouse body fixing cylinder 1 is made of hard cloth or soft plastic.

The working principle of the technical scheme is as follows: the mouse body fixing cylinder 1 is made of hard cloth or soft plastic, so that a rat can be prevented from being cut, and when the mouse body fixing cylinder 1 is not used, the mouse body fixing cylinder 1 can be folded, so that the storage and the storage are convenient; in addition, after a rat is placed in the rat body fixing cylinder 1, the rat body fixing cylinder 1 can be tensioned through a magic tape, a rubber band and the like, the rat body and the rat body fixing cylinder 1 are firmly fixed, the rat cannot climb out of the rat body fixing cylinder 1, and the rat body fixing cylinder 1 can also be fixed with the platform 7-3-3 through the magic tape and the rubber band; in addition, hard cloth or soft plastics have certain intensity, can guarantee that the rat tail dead lever 2 of fixed connection with it can not rock along with the rocking of rat tail.

The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, the rat body is firm fixes in the fixed section of thick bamboo of the rat body 1, the rat body can not climb out, rat tail and 2 fixed backs of rat tail dead lever, rat tail dead lever 2 can not rock, thereby accomplish the complete fixation of rat tail, make things convenient for the pharmaceutical research personnel to insert the blood sampling needle to rat tail and take a blood sample, in addition when the preferential scalp needle of chooseing for use of blood sampling needle, the scalp needle is pricked into rat tail vein and is seen blood after, available medical adhesive tape fixes scalp needle and heparin tube on rat tail dead lever 2, scalp needle and heparin tube can not deviate from because the rat tail rocks.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (7)

1. A rat tail vein injection auxiliary fixing device is characterized by comprising: the mouse tail fixing rod is characterized by comprising a mouse body fixing barrel (1) and a mouse tail fixing rod (2), wherein the mouse tail fixing rod (2) is arc-shaped, one end of the mouse tail fixing rod (2) is connected with the mouse body fixing barrel (1), two air bag fixing clamping components (3) are arranged at intervals at one end, away from the mouse body fixing barrel (1), of the mouse tail fixing rod (2), and the air bag fixing clamping components (3) are sleeved on the mouse tail fixing rod (2);

the air bag fixing and clamping assembly (3) comprises a sliding block (3-1) and two arc-shaped air bag fingers (3-2), a first arc-shaped hole (3-1-1) corresponding to the rat tail fixing rod (2) is formed in the center of the sliding block (3-1), a first groove (3-1-2) is formed in the lower end of the sliding block (3-1), the lower end of the first groove (3-1-2) penetrates through the sliding block (3-1), the upper end of the first groove (3-1-2) is communicated with the first arc-shaped hole (3-1-1), and the arc-shaped air bag fingers (3-2) are fixedly connected to two opposite side walls of the first groove (3-1-2);

two vent pipes (3-3) are arranged in the sliding block (3-1), one ends of the two vent pipes (3-3) are respectively communicated with two arc-shaped air bag fingers (3-2), the other ends of the two vent pipes (3-3) extend outwards to protrude out of the sliding block (3-1), and a stop valve (3-4) is arranged in the middle position of one end of the two vent pipes (3-3) protruding out of the sliding block (3-1);

one end of the vent pipe (3-3) far away from the stop valve (3-4) towards the outer side of the sliding block (3-1) is communicated with an air charging device (5), the inflation device (5) comprises an inflation ball (5-1), one end of the inflation ball (5-1) is provided with an air suction one-way valve (5-2), the other end is provided with an air outlet one-way valve (5-3), the air outlet end of the air outlet one-way valve (5-3) is communicated with an air inflation main pipeline (5-4), one end, far away from the air outlet one-way valve (5-3), of the main air inflation pipeline (5-4) is communicated with two air inflation branch pipelines (5-5), and the two air inflation branch pipelines (5-5) are respectively communicated with one ends, far away from the stop valves (3-4), of the air vent pipes (3-3) towards the outer side direction of the sliding block (3-1).

2. The rat tail vein injection auxiliary fixing device according to claim 1, wherein a plurality of protrusions (3-2-1) are fixedly communicated with an arc curved surface of the arc air bag finger (3-2), and the inner surfaces of the arc air bag finger (3-2) and the protrusions (3-2-1) are provided with anti-prick layers.

3. The rat tail vein injection auxiliary fixing device as claimed in claim 1, wherein the rat tail fixing rod (2) is made of transparent hard material, and a blood vessel display lamp (6) is arranged in the rat tail fixing rod (2).

4. The rat tail vein injection auxiliary fixing device according to claim 1, further comprising a lifting and rotating platform (7), wherein the lifting and rotating platform (7) comprises a fixing plate (7-1), a telescopic rod (7-2) and a rotating bracket (7-3), the bottom of the telescopic rod (7-2) is fixedly connected with the fixing plate (7-1), the top of the telescopic rod is fixedly connected with the upper end of the rotating bracket (7-3), and the telescopic rod (7-2) is used for adjusting the height of the lifting and rotating platform (7).

5. The rat tail vein injection auxiliary fixing device according to claim 4, wherein the rotary bracket (7-3) comprises a U-shaped rotary seat (7-3-1), two rotary shafts (7-3-2) and a platform (7-3-3), the bottom of the U-shaped rotary seat (7-3-1) is fixedly connected with the telescopic rod (7-2), the outer side surface of the U-shaped rotary seat (7-3-1) is provided with a through hole (7-3-1-1) for installing the rotary shaft (7-3-2), the two ends of the through hole (7-3-1-1) are respectively provided with a second groove (7-3-1-2) and a third groove (7-3-1-3), the depth of the second groove (7-3-1-2) is greater than that of the third groove (7-3-1-3), the bottom surface of the second groove (7-3-1-2) forms a first step surface (7-3-1-2-1), the bottom surface of the third groove (7-3-1-3) forms a second step surface (7-3-1-3-1), two fourth grooves (7-3-2-1) are arranged on the outer surface of the rotating shaft (7-3-2), a clamp spring (7-3-4) used for limiting the rotating shaft (7-3-2) to move along the axial direction is arranged in each fourth groove (7-3-2-1), the two clamp springs (7-3-4) are respectively positioned in the second groove (7-3-1-2) and the third groove (7-3-1-3), the clamp spring (7-3-4) in the third groove (7-3-1-3) is abutted against the second step surface (7-3-1-3-1), a positioning plate (7-3-5) is arranged between the clamp spring (7-3-4) in the second groove (7-3-1-2) and the first step surface (7-3-1-2-1), and the clamp spring (7-3-4) enables the positioning plate (7-3-5) to be abutted against the first step surface (7-3-1-2-1), one end of each of the two rotating shafts (7-3-2) protrudes inwards out of the U-shaped rotating seat (7-3-1) and is fixedly connected with two opposite side faces of the platform (7-3-3), a plurality of external teeth (7-3-2-2) are uniformly distributed at one end of each of the rotating shafts (7-3-1) in the circumferential direction of the rotating shaft (7-3-1), the external teeth (7-3-2-2) are located between the two fourth grooves (7-3-2-1), and the platform (7-3-3) is fixedly connected with the mouse body fixing cylinder (1).

6. The rat tail vein injection auxiliary fixing device according to claim 5, wherein the rotary bracket (7-3) further comprises a control component (7-3-6), the control component (7-3-6) comprises a control block (7-3-6-1), a rotation direction switching button (7-3-6-2) and a spring block (7-3-6-3), the control block (7-3-6-1) is provided with a tooth groove (7-3-6-1-1) engaged with the outer surface of the rotary shaft (7-3-2), the outer side surface of the U-shaped rotary base (7-3-1) is provided with a fifth groove (7-3-1-4) corresponding to the control block (7-3-6-1), the lower surface of the control block (7-3-6-1) is provided with an inward concave arc-shaped groove (7-3-6-1-2), one end of the spring block (7-3-6-3) is abutted against the groove wall of the arc-shaped groove (7-3-6-1-2), the other end of the spring block is connected to the rotating direction switching button (7-3-6-2), a sixth groove (7-3-1-5) is arranged below the fifth groove (7-3-1-4), the rotating direction switching button (7-3-6-2) is rotatably connected with the bottom surface of the sixth groove (7-3-1-5), and a seventh groove (7-3-1-6) is arranged below the sixth groove (7-3-1-5), the sixth groove (7-3-1-5) and the seventh groove (7-3-1-6) are arranged on the outer side surface of the U-shaped rotating seat (7-3-1).

7. The rat tail vein injection auxiliary fixing device according to claim 1, wherein the rat body fixing cylinder (1) is made of hard cloth or soft plastic.

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