CN216646010U - Animal internal organ perfusion device - Google Patents

Abstract

The utility model provides an animal viscera perfusion device, which comprises: the injection part comprises a first end and a second end, and is used for injecting the fixing liquid into the internal organs of the animal; the pressurization portion, pressurization portion include the motor and fill the container, and the motor is including the converter that is used for adjusting motor working power supply frequency, fills the second end connection of container and injection portion, fills the container including holding the cavity of stationary liquid, is provided with in the filling container rather than inner wall complex piston, and the motor is connected with the piston, and the motor changes the volume that fills the container through driving the piston. The frequency converter adjusts the operating power supply frequency of motor and controls the change rate of filling container volume, can accurately adjust the speed that the injection portion pours into the stationary liquid into to animal viscera, has avoided pouring into too fast or slow, and the frequency of adjusting the power is invariable numerical value, makes the filling rate more stable, has avoided pouring unevenly, observes the position change that lives, and the volume of pouring during the direct judgement is filled, avoids filling excessively or fills inadequately.

Description

Animal internal organ perfusion device

Technical Field

The utility model relates to an animal viscera perfusion device.

Background

The lung is collected and then is perfused with the stationary liquid, which is the basic work of the subsequent toxic pathological tissue examination, the reasonable perfusion of the lung tissue has decisive significance for the success or failure of microscopic examination, and has great significance for improving the scientific and normative test. At present, the general perfusion mode to the lung uses the syringe to artificially perfuse, and the shortcoming of this kind of mode is that can't accurate control perfusion rate, and it can cause the damage to the lung tissue because pressure is too big to perfuse too fast, perfuses too slowly and again can waste time, and the unstability of perfusion rate also can lead to filling inhomogeneously, and manual operation fills inadequately or pours excessively easily moreover to lead to follow-up lung histopathology inspection and judge the mistake, influence the test result.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect of poor animal viscera perfusion in the prior art and provides an animal viscera perfusion device.

The utility model solves the technical problems through the following technical scheme:

an animal viscera perfusion apparatus, comprising:

an injection part including a first end and a second end, the injection part being used for injecting a fixative solution into an animal internal organ;

the pressurizing part comprises a motor and a filling container, the motor comprises a frequency converter used for adjusting the frequency of a working power supply of the motor, the filling container is connected with the second end of the injection part and comprises a cavity for containing a fixing liquid, a piston matched with the inner wall of the filling container is arranged in the filling container, the motor is connected with the piston, and the volume of the filling container is changed by driving the piston.

In this device, the converter in the pressure section controls the change rate that fills the container volume through the working power supply frequency of adjusting motor, thereby can accurately adjust the speed that injection section injects the stationary liquid into the animal viscera, it is too fast or slow to have avoided filling, frequency through adjusting the power is invariable numerical value, make filling rate relatively stable, it is inhomogeneous to have avoided filling, simultaneously, through observing the position variation of piston around filling, can also directly judge the volume of filling during filling, avoid filling excessively or fill not enough.

Preferably, the motor comprises a time control switch, and the time control switch is used for controlling the working time of the motor.

In this scheme, time switch can control the operating time of motor, and time switch uses with the converter combines, can the pouring capacity of effective control stationary liquid, has avoided filling not enough or fill excessive defect.

Preferably, the injection part comprises an injection needle for insertion into the internal organs of the animal.

Preferably, the injection needle is provided with a grip for gripping the animal gut when the injection needle is inserted into the animal gut.

In this scheme, adopt the holder to press from both sides tight animal viscera when filling, avoid the stationary liquid to leak.

Preferably, the perfusion device further comprises a stationary liquid injection part, the stationary liquid injection part is connected with the perfusion container through a pipeline, and the stationary liquid injection part is used for injecting stationary liquid into the perfusion container.

In this scheme, the stationary liquid injection portion has been increased on filling the container, is convenient for to supplementary stationary liquid in the filling the container, raises the efficiency.

Preferably, the pipeline is provided with an anti-backflow device.

In this aspect, the stationary liquid is prevented from flowing back to the stationary liquid injection portion when pouring.

Preferably, the backflow prevention device comprises a backflow prevention valve.

Preferably, the irrigation container is cylindrical.

In this scheme, cylindrical filling container can hold more stationary liquids in unit volume, and inside piston also better realizes the pouring of stationary liquid with filling the container cooperation moreover.

Preferably, the side wall of the pouring container is provided with a scale.

In the scheme, the change of the scales on the side wall is observed, so that the pouring amount can be conveniently judged.

Preferably, the clamp comprises a retaining clip.

The positive progress effects of the utility model are as follows: in this device, the frequency converter in the pressure part controls the change rate of filling container volume through the working power supply frequency of adjusting motor to can accurately adjust the speed that injection part injects the stationary liquid to animal viscera, avoid filling too fast or slow, be invariable numerical value through the frequency of adjusting the power, make filling rate relatively stable, avoid filling inhomogeneously, can judge the perfusion volume through piston position change, avoid filling excessively or not enough.

Drawings

Fig. 1 is a schematic view of an animal viscera perfusion apparatus according to an embodiment of the utility model.

Fig. 2 is a schematic view illustrating a state of use of the animal viscera perfusion apparatus according to an embodiment of the present invention.

Description of reference numerals:

base 1

Injection part 2

Injection needle 21

Clamping member 22

Pressurizing part 3

Motor 31

Frequency converter 32

Time controlled switch 33

Piston 34

Push rod 35

Irrigation container 36

Stationary liquid injection part 4

Backflow prevention valve 41

Pipe 5

Animal internal organs 6

Detailed Description

The present invention will be more fully described in the following detailed description of the preferred embodiments thereof, taken together with the accompanying drawings.

As shown in fig. 1 and 2, an animal viscera 6 perfusion device comprises an injection part 2, wherein the injection part 2 comprises a first end and a second end, and the injection part 2 is used for injecting a stationary liquid into the animal viscera 6; the pressurizing part 3, the pressurizing part 3 includes a motor 31 and a perfusion container 36, the motor 31 includes a frequency converter 32 for adjusting the working power frequency of the motor 31, the perfusion container 36 is connected with the second end of the injection part 2, the perfusion container 36 includes a chamber for containing stationary liquid, a piston 34 matched with the inner wall of the perfusion container 36 is arranged in the perfusion container 36, the motor 31 is connected with the piston 34, and the motor 31 changes the volume of the perfusion container 36 by driving the piston 34. In this device, converter 32 in the pressurization portion 3 controls the change rate of 36 volumes of filling container through the working power supply frequency of adjusting motor 31 to can accurately adjust the speed that injection portion 2 injects the stationary liquid into animal viscera 6, avoid filling too fast or too slow, frequency through adjusting the power is invariable numerical value, make filling rate relatively stable, avoided filling inhomogeneous, can judge the perfusion volume through piston 34 position change, avoid filling excessively or not enough. In order to adjust the frequency of the operating power source of the frequency converter 32, reference may be made to a configuration scheme in the prior art, for example, by providing a knob connected to the frequency converter 32, the operating frequency of the frequency converter 32 is adjusted by rotating the knob, so as to achieve the purpose of adjusting and maintaining the perfusion speed.

Specifically, injection portion 2 and pressurization portion 3 in this scheme all set up on base 1, and base 1 is including four more than support frames, only shows two in the drawing for the convenience of description, and wherein the first end of injection portion 2 is sharp form, has certain hardness, is convenient for insert animal viscera 6 and injects, and injection portion 2 can adopt plastics or metal material, and pressurization portion 3 provides pressure and controls the speed of filling for injecting the stationary liquid, wherein holds the stationary liquid in the cavity of filling container 36, is connected to the second end of injection portion 2. In this embodiment, a push rod 35 may be disposed on the piston 34, the motor 31 may drive the push rod 35 on the piston 34 to change the volume of the perfusion container 36, so as to inject the stationary liquid in the perfusion container 36 to the animal viscera 6 through the injection part 2, and the frequency converter 32 is disposed in the motor 31 to control the frequency of the operating power source of the motor 31, so as to control the volume change rate of the perfusion container 36, thereby controlling the perfusion rate, and avoiding over-fast or over-slow perfusion, where the motor 31 and the frequency converter 32 are both products in the prior art.

In this embodiment, the motor 31 further includes a time-space switch, the time-space switch is used to control the working time of the motor 31, and the time control switch 33 is used in combination with the frequency converter 32, so as to effectively control the perfusion amount of the stationary liquid, thereby avoiding the defect of insufficient perfusion or excessive perfusion. Further, the injection part 2 comprises an injection needle 21, the injection needle 21 is used for inserting the animal viscera 6, a holding piece 22 is arranged on the injection needle 21, the holding piece 22 is used for clamping the animal viscera 6 when the injection needle 21 is inserted into the animal viscera 6, and the holding piece 22 is used for clamping the animal viscera 6 when in perfusion, so that the leakage of the fixing liquid is avoided. Further, the animal viscera 6 perfusion device also comprises a stationary liquid injection part 4, the stationary liquid injection part 4 is connected with the perfusion container 36 through a pipeline 5, the stationary liquid injection part 4 is used for injecting stationary liquid into the perfusion container 36, the stationary liquid injection part 4 is additionally arranged on the perfusion container 36, the stationary liquid is conveniently supplemented into the perfusion container 36, the perfusion efficiency is improved, the pipeline 5 can be made of plastic materials, and can also be made of metal, and the limitation is not made here. Further, a backflow prevention device is arranged on the pipeline 5, so that the phenomenon that the stationary liquid flows back to the stationary liquid injection part 4 from the inside of the filling container 36 during filling is avoided, the backflow prevention device comprises a backflow prevention valve 41, and the backflow prevention device and the backflow prevention valve 41 can adopt devices in the prior art, and are not limited here. Furthermore, the filling container 36 is cylindrical, the cylindrical filling container 36 can contain more stationary liquid in unit volume, the internal piston 34 is better matched with the filling container 36 to fill the stationary liquid, further, scales (not shown in the figure) are arranged on the side wall of the filling container 36, and accurate filling amount can be directly judged by observing scale changes corresponding to the piston 34 on the side wall after filling is completed under the condition that the filling container 36 is scaled. Further, the holding member 22 comprises a fixing clip, which is low in cost and easy to obtain, and which is used for clamping the animal internal organs 6 during perfusion, thereby preventing leakage of the fixing liquid.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of this invention, and these changes and modifications are within the scope of this invention.

Claims (7)

1. An animal viscera perfusion device, characterized in that it comprises:

an injection part including a first end and a second end, the injection part being used for injecting a fixing solution to an animal viscera;

the injection part comprises a pressurizing part, the pressurizing part comprises a motor and a filling container, the motor comprises a frequency converter for adjusting the working power supply frequency of the motor, the filling container is connected with the second end of the injection part, the filling container comprises a cavity for containing stationary liquid, a piston matched with the inner wall of the filling container is arranged in the filling container, the motor is connected with the piston, the volume of the filling container is changed by driving the piston, and scales are arranged on the side wall of the filling container;

the injection part comprises an injection needle head, the injection needle head is used for being inserted into the internal organs of the animal, a clamping piece is arranged on the injection needle head, and the clamping piece is used for clamping the internal organs of the animal when the injection needle head is inserted into the internal organs of the animal.

2. An animal viscera perfusion apparatus as claimed in claim 1, wherein the motor comprises a time-controlled switch for controlling the operation time of the motor.

3. The animal viscera perfusion apparatus of claim 1, further comprising a stationary liquid injection part connected to the perfusion container through a pipe, the stationary liquid injection part being configured to inject a stationary liquid into the perfusion container.

4. An animal viscera perfusion device as claimed in claim 3, wherein the conduit is provided with a backflow prevention means.

5. An animal viscera perfusion device as claimed in claim 4, wherein the anti-reflux means comprises an anti-reflux valve.

6. An animal viscera perfusion device according to any one of claims 1 to 5, wherein the perfusion container is cylindrical.

7. An animal viscera perfusion apparatus as claimed in claim 1, wherein the retaining member comprises a retaining clip.

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