CN213851252U - A assistor for murine tail intravenous route - Google Patents

Abstract

The utility model relates to an assistor for murine tail vein injection, which comprises a clamping tool and an air bag; the clamping tool comprises an upper clamping end, a lower clamping end and a pressing handle; the clamping upper end, the clamping lower end and the pressing handle are connected through an elastic rotating shaft; the air bag is of a structure with the upper end and the lower end communicated with each other and is respectively arranged between the upper clamping end and the inner wall of the lower clamping end; the air bag is connected with an inflation valve; a pressure sensor is also arranged between the air bag and the inner wall of the clamping upper end or the clamping lower end; the surface of the air bag is also provided with a silica gel film. Its advantages are: small and exquisite portable can cooperate arbitrary mouse to use with the fixer, and does not limit the mouse kind, makes things convenient for the art person to carry out tail vein injection's operation to experimental animals, reduces the intravenous route degree of difficulty, improves the injection success rate, and accessible baroreceptor record and aassessment mouse tail vein pressure value.

Description

A assistor for murine tail intravenous route

Technical Field

The utility model belongs to the technical field of mouse tail intravenous route technique and specifically relates to an assistor for mouse tail intravenous route.

Background

The tail vein injection of the mouse is the most common experimental means for the animal experiment in modern medicine, and can fully simulate the situation that a human receives the vein injection.

The tail vein injection has higher technical requirements on operators, particularly when the tail vein injection is carried out on mice, because blood vessels are too small, fur pigment influences the blood vessel imaging unobviously, the depth of the needle insertion of an operator is different, the phenomenon that the blood vessels are not punctured or are punctured is frequently caused to cause liquid leakage, the success rate is not high, the number of liquid medicine or cells entering circulation is different, the uniformity of an experiment is influenced, and errors are caused. And under the current clinical operation, when mouse tail vein was injected, can't assess or record tail vein pressure value, inconvenient later experimental study.

Chinese patent documents: CN202010324248.9, application date 2020.04.22, patent names: a mouse tail vein injection device. The utility model discloses a mouse tail intravenous route device, its technical scheme main points are including clamping device, and the muffjoint still can dismantle on the sleeve and be connected with a section of thick bamboo stopper on the clamping device, and a section of thick bamboo stopper is connected with the board of placing that is used for fixed afterbody, places and is provided with the limiting plate on the board, and the one end of limiting plate is rotated and is connected on one side of placing the board, and the connection can be dismantled on the opposite side of placing the board to the other end of limiting plate.

Chinese patent documents: CN201010519057.4, application date 2010.10.25, patent names: mouse tail intravenous route fixing device. Disclosed is a mouse tail vein injection fixing device, comprising a fixing plate and a fixing chamber fixed on the fixing plate, wherein the fixing plate comprises at least one suction cup arranged at the opposite side of the fixing chamber; the fixed chamber includes a movable portion and a first slit extending along a length of the fixed chamber from one end to the other end, the movable portion being connected to the fixed chamber by a nut and a screw passing through the first slit.

In the mouse tail vein injection device in the patent document CN202010324248.9, a cylinder plug is adopted to limit a mouse in a sleeve, then the tail of the mouse is placed on a placing plate, the tail of the mouse is fixed on the placing plate at a rotation limiting plate, the tail of the mouse does not need to be fixed by hands, the tail is not easy to loosen, the tail can be completely and stably fixed, the tail is not easy to swing when injection is performed, interference is reduced, the injection is convenient, and the injector can be held by two hands, so that the injection is more stable; in contrast, in patent document CN201010519057.4, a mouse tail vein injection fixing device employs a fixing plate including at least one suction cup disposed at the opposite side to which the fixing chamber is fixed; the fixed chamber comprises a movable portion and a first slit extending along a length of the fixed chamber from one end to the other end; the mouse tail vein injection device disclosed by the invention can be used for well fixing a mouse, the space in the fixing chamber can be adjusted according to the body length of the mouse, and the tail vein injection is convenient for operators to carry out. However, the small and portable mouse tail vein injection assisting device can be used with any mouse fixator, is not limited to mouse species, is convenient for operators to perform tail vein injection on experimental animals, reduces the difficulty of vein injection, improves the success rate of injection, and can record and evaluate the pressure value of the tail vein of a mouse through a baroreceptor.

In summary, there is a need for a small and portable murine caudal vein injection assisting device which can be used with any murine fixator, does not limit murine species, facilitates the operation of caudal vein injection of experimental animals by an operator, reduces the difficulty of vein injection, improves the success rate of injection, and can record and evaluate the pressure value of caudal vein through a baroreceptor.

Disclosure of Invention

The utility model aims at overcoming prior art's not enough, provide a small and exquisite portable, can cooperate arbitrary mouse to use with the fixer, and do not limit mouse kind, make things convenient for the art person to carry out tail intravenous injection's operation to experimental animals, reduce the intravenous injection degree of difficulty, improve the injection success rate, and accessible baroreceptor record and a mouse tail intravenous injection's of aassessment value assistor.

In order to achieve the purpose, the utility model adopts the technical proposal that:

an assistor for murine tail vein injection comprises a clamping tool and an air bag; the clamping tool comprises an upper clamping end, a lower clamping end and a pressing handle; the air bag is arranged between the inner walls of the upper end and the lower end of the clamp; the air bag is connected with an inflation valve; and a pressure sensor is also arranged between the air bag and the inner wall of the clamping upper end or the clamping lower end.

As a preferable technical scheme, the clamping upper end, the clamping lower end and the pressing handle are connected through an elastic rotating shaft.

As a preferred technical scheme, the clamping upper end and the clamping lower end are of symmetrical structures and are of arc-shaped convex structures.

As a preferable technical scheme, the air bag is of a structure with the upper end and the lower end communicated.

As a preferred technical scheme, the surface of the air bag is also provided with a silica gel film.

The utility model has the advantages that:

1. small and exquisite portable can cooperate arbitrary mouse to use with the fixer, and does not limit the mouse kind, makes things convenient for the art person to carry out tail vein injection's operation to experimental animals, makes tail vein backward flow obstructed, and the blood vessel is sufficient to improve the visibility, reduce the intravenous route degree of difficulty, improve the injection success rate.

2. Locate the pressure sensor between gasbag and the centre gripping apparatus inner wall and be used for detecting the gasbag to the pressure of rat tail vein to through the external equipment of radio signal, alright monitoring and record rat tail vein pressure value, the later stage experimental study of being convenient for.

3. Through the design that is equipped with one deck silica gel film on the gasbag surface, frictional force between multiplicable tail and the gasbag keeps the fixed effect of better centre gripping, can alleviate the damage to the tail simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of an auxiliary device for tail vein injection of rats.

Fig. 2 is a schematic structural view of the rat tail holding state of the auxiliary device for rat tail vein injection of the present invention.

Fig. 3 is a schematic structural diagram of another auxiliary device for tail vein injection of rats.

Detailed Description

The invention will be further described with reference to the following examples and with reference to the accompanying drawings.

The reference numerals and components referred to in the drawings are as follows:

1. a holding tool 11 for holding the upper end

12. Clamping lower end 13, pressing handle

2. Air bag 21, inflation valve

3. Pressure sensor

Example 1

Please refer to fig. 1 and 2, fig. 1 is a schematic structural diagram of an assist device for rat tail vein injection according to the present invention, and fig. 2 is a schematic structural diagram of a rat tail vein injection according to the present invention in a rat tail clamping state. An assistor for murine tail vein injection comprises a clamping tool 1 and an air bag 2; the clamping tool 1 comprises an upper clamping end 11, a lower clamping end 12 and a pressing handle 13; the clamping upper end 11, the clamping lower end 12 and the pressing handle 13 are connected through a rotating shaft 14; the clamping upper end 11 and the clamping lower end 12 are of symmetrical structures and are of arc-shaped convex structures; the air bag 2 is of a structure with two communicated upper and lower ends and is respectively arranged between the inner walls of the clamping upper end 11 and the clamping lower end 12; the air bag 2 is connected with an inflation valve 21; and a pressure sensor 3 is also arranged between the air bag 2 and the inner wall of the clamping upper end 11 or the clamping lower end 12.

It should be noted that: the rotating shaft 14 is an elastic rotating shaft, and the opening and closing of the clamping tool 1 body can be controlled by pressing the handle 13; the inflation valve 21 can be used for inflating or deflating the air bag 2; the pressure sensor 3 arranged between the air bag 2 and the inner wall of the clamping tool 1 is used for detecting the pressure of the air bag 2 on the rat tail vein, so that the pressure value of the rat tail vein can be monitored and recorded by externally connecting equipment through a wireless signal, and later experimental research is facilitated; when the clamping tool is used, the clamping tool 1 is opened by pressing the handle 13, the rat tail is placed between the air bags 2 at the upper end and the lower end, the pressing handle 13 is loosened, the air bags 2 are inflated through the inflation valve 21, the internal pressure of the air bags 2 is gradually increased, the autonomous pressurizing and fixing clamping effect on the rat tail is achieved, and meanwhile the pressure sensor 3 can detect the pressure value of the rat tail vein in real time; the utility model discloses an assistor, small and exquisite portable can cooperate arbitrary mouse to use with the fixer, and do not limit mouse kind, makes things convenient for the art person to carry out tail vein injection's operation to experimental animals, makes tail vein backward flow obstructed, and the blood vessel is sufficient to improve the visibility, reduce the intravenous route degree of difficulty, improve the injection success rate.

Example 2

Referring to fig. 3, fig. 3 is a schematic structural diagram of another auxiliary device for tail vein injection of rats according to the present invention. The present embodiment is substantially the same as embodiment 1, except that the upper and lower end surfaces of the airbag 2 in the present embodiment are both provided with a layer of silica gel film 4; through the design that is equipped with one deck silica gel film 4 on gasbag 2 surface, frictional force between multiplicable tail and the gasbag 2 keeps the fixed effect of better centre gripping, can alleviate the damage to the tail simultaneously.

The utility model discloses an assistor for mouse tail vein injection, small and exquisite portable can cooperate arbitrary mouse to use with the fixer, and do not restrict mouse kind, makes things convenient for the operation that the operator carries out tail vein injection to the experimental animals, makes the tail vein backward flow obstructed, and the blood vessel is abundant to improve the visibility, reduces the intravenous route degree of difficulty, improves the injection success rate; the pressure sensor arranged between the air bag and the inner wall of the clamping tool is used for detecting the pressure of the air bag on the rat tail vein, so that the pressure value of the rat tail vein can be monitored and recorded by externally connecting equipment through a wireless signal, and later experimental research is facilitated; through the design that is equipped with one deck silica gel film on the gasbag surface, frictional force between multiplicable tail and the gasbag keeps the fixed effect of better centre gripping, can alleviate the damage to the tail simultaneously.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims (5)

1. An assistor for murine tail vein injection is characterized by comprising a clamping tool and an air bag; the clamping tool comprises an upper clamping end, a lower clamping end and a pressing handle; the air bag is arranged between the inner walls of the upper end and the lower end of the clamp; the air bag is connected with an inflation valve; and a pressure sensor is also arranged between the air bag and the inner wall of the clamping upper end or the clamping lower end.

2. The device as claimed in claim 1, wherein the upper and lower ends of the clamp and the pressing handle are connected by an elastic rotating shaft.

3. The device as claimed in claim 2, wherein the upper and lower clamping ends are symmetrical and have arc-shaped protrusions.

4. The device as claimed in claim 1, wherein the air bag is in a structure with upper and lower ends communicating with each other.

5. The device as claimed in claim 4, wherein the surface of the balloon is further provided with a silica gel film.

Images