CN215606544U

CN215606544U - Pressure injection device for injecting physiological saline into animal heart

Info

Publication number: CN215606544U
Application number: CN202120133761.XU
Authority: CN
Inventors: 宋祯彦; 罗德勇; 贺春香; 李平; 郑雨珊; 成绍武
Original assignee: Hunan University of Chinese Medicine
Current assignee: Hunan University of Chinese Medicine
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2022-01-25
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses a pressure injection device for injecting physiological saline into an animal heart, which comprises a containing cylinder, a hollow pipe, a liquid injection hose and a forward and reverse rotation motor, wherein a screw rod is arranged at the top of an inner cavity of the hollow pipe and is in transmission connection with the forward and reverse rotation motor through an output shaft, a piston rod is arranged at the bottom of the screw rod and is in threaded connection with the screw rod, and the piston rod is in sliding connection with the hollow pipe. The screw rod is driven to rotate clockwise by the forward and reverse rotation motor, the screw rod drives the piston rod to move upwards, the second baffle plate is turned clockwise and opened at the moment, the first baffle plate is closed under the action of the limiting frame, the physiological saline in the containing barrel enters the hollow pipe, negative pressure is generated in the containing barrel, the physiological saline in the physiological saline barrel is extracted through the liquid injection hose, then the forward and reverse rotation motor drives the screw rod to rotate anticlockwise, the physiological saline is injected into an animal carcass through the conical pipe, the catheter, the through pipe and the needle head sequentially, and the injection device is convenient to operate and use.

Description

Pressure injection device for injecting physiological saline into animal heart

Technical Field

The utility model relates to the technical field of experimental equipment, in particular to a pressure injection device for perfusing physiological saline into an animal heart.

Background

When the experiment is carried out, the blood flow of the animals can not be discharged after the animals are killed, and the heart of the animals needs to be perfused with physiological saline and then the blood is sufficiently discharged.

The prior art has the following defects: when the normal saline is poured, the ordinary syringe is used for pouring, which wastes time and labor.

The above information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a pressure injection device for animal heart perfusion of physiological saline, which solves the problems mentioned in the background art.

In order to achieve the above purpose, the utility model provides the following technical scheme: a pressure injection device for injecting physiological saline into an animal heart comprises a loading cylinder, a hollow pipe, a liquid injection hose and a forward and reverse motor, wherein a screw rod is arranged at the top of an inner cavity of the hollow pipe and is in transmission connection with the forward and reverse motor through an output shaft, a piston rod is arranged at the bottom of the screw rod and is in threaded connection with the screw rod, and the piston rod is in sliding connection with the hollow pipe;

the bottom one side of hollow tube is equipped with first baffle, the bottom opposite side of hollow tube is equipped with the second baffle, just first baffle and second baffle all with hollow tube swing joint, the bottom one side of first baffle and second baffle is all fixed and is equipped with spacing, just spacing and hollow tube butt, the fixed toper pipe that is equipped with in bottom one side of hollow tube, hold one side bottom of a dress section of thick bamboo fixed and be equipped with the siphunculus, just the toper pipe passes through the pipe intercommunication with the siphunculus, the tip of siphunculus is equipped with the syringe needle, just syringe needle and siphunculus threaded connection.

Preferably, the hollow tube is arranged in the center of the inner cavity of the bearing cylinder, and the top end and the bottom end of the hollow tube are welded with the bearing cylinder.

Preferably, the liquid injection hose is arranged at the top of the other side of the containing cylinder and is in conduction connection with the containing cylinder.

Preferably, the forward and reverse rotation motor is arranged at the center of the top of the bearing cylinder, and the forward and reverse rotation motor and the bearing cylinder can be connected through screws in a material mode.

Preferably, a bearing is arranged on the outer side of the top end of the screw rod, and the screw rod is movably connected with the containing barrel through the bearing.

Preferably, the bottom both sides of piston rod all are fixed and are equipped with the slider, just piston rod and hollow tube pass through slider sliding connection.

Preferably, the inner side wall of the hollow tube is provided with a sliding groove corresponding to the position of the sliding block, the sliding block is matched with the sliding groove, and the transverse cross sections of the hollow tube and the piston rod are both designed in a square shape.

Preferably, the tops of the first baffle and the second baffle are respectively provided with a rotating rod, and the first baffle and the second baffle are respectively movably connected with the hollow pipe through the rotating rods.

In the technical scheme, the utility model provides the following technical effects and advantages:

the screw rod is driven to rotate clockwise by the forward and reverse rotation motor, the screw rod drives the piston rod to move upwards, the second baffle plate is turned clockwise and opened at the moment, the first baffle plate is closed under the action of the limiting frame, the physiological saline in the containing barrel enters the hollow pipe, negative pressure is generated in the containing barrel, the physiological saline in the physiological saline barrel is extracted through the liquid injection hose, then the forward and reverse rotation motor drives the screw rod to rotate anticlockwise, the physiological saline is injected into the animal carcass through the conical pipe, the guide pipe, the through pipe and the needle head sequentially, and compared with the existing mode of injecting the physiological saline by using the injector, the injection device is convenient to operate and use.

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a longitudinal sectional view of the present invention.

FIG. 2 is a usage scenario diagram of the present invention.

FIG. 3 is an enlarged view of portion A of FIG. 1 according to the present invention.

FIG. 4 is an enlarged view of the portion B of FIG. 1 according to the present invention.

Fig. 5 is a partial structural schematic view of the first baffle of the present invention.

Description of reference numerals:

1. a loading cylinder; 2. a hollow tube; 3. a liquid injection hose; 4. a positive and negative rotation motor; 5. a screw; 6. a piston rod; 7. a first baffle plate; 8. a second baffle; 9. a limiting frame; 10. a tapered tube; 11. a conduit; 12. pipe passing; 13. a needle.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The utility model provides a pressure injection device for perfusing physiological saline into an animal heart, which comprises a containing cylinder 1, a hollow pipe 2, a liquid injection hose 3 and a forward and reverse rotation motor 4, wherein the top of the inner cavity of the hollow pipe 2 is provided with a screw rod 5, the screw rod 5 is in transmission connection with the forward and reverse rotation motor 4 through an output shaft, the bottom of the screw rod 5 is provided with a piston rod 6, the piston rod 6 is in threaded connection with the screw rod 5, and the piston rod 6 is in sliding connection with the hollow pipe 2;

bottom one side of hollow tube 2 is equipped with first baffle 7, the bottom opposite side of hollow tube 2 is equipped with second baffle 8, just first baffle 7 and second baffle 8 all with hollow tube 2 swing joint, bottom one side of first baffle 7 and second baffle 8 is all fixed and is equipped with spacing 9, just spacing 9 and hollow tube 2 butt, the fixed conical duct 10 that is equipped with in bottom one side of hollow tube 2, hold one side bottom of a dress section of thick bamboo 1 fixed and be equipped with siphunculus 12, just conical duct 10 and siphunculus 12 pass through pipe 11 intercommunication, the tip of siphunculus 12 is equipped with syringe needle 13, just syringe needle 13 and siphunculus 12 threaded connection.

Further, in the above technical scheme, the hollow tube 2 is arranged in the center of the inner cavity of the containing barrel 1, and the top end and the bottom end of the hollow tube 2 are welded with the containing barrel 1.

Further, in the above technical scheme, the liquid injection hose 3 is arranged at the top of the other side of the containing cylinder 1, the liquid injection hose 3 is in conduction connection with the containing cylinder 1, and the containing cylinder 1 is in conduction connection with the physiological saline cylinder through the arranged liquid injection hose 3.

Further, in the above technical scheme, the forward and reverse rotation motor 4 is arranged at the center of the top of the bearing cylinder 1, and the forward and reverse rotation motor 4 and the bearing cylinder 1 are connected by a screw material, so that the forward and reverse rotation motor 4 is reinforced.

Further, in the above technical solution, a bearing is disposed on an outer side of a top end of the screw rod 5, and the screw rod 5 is movably connected with the bearing cylinder 1 through the bearing, so that the screw rod 5 can move conveniently through the disposed bearing.

Further, in above-mentioned technical scheme, the bottom both sides of piston rod 6 all are fixed and are equipped with the slider, just piston rod 6 passes through slider sliding connection with hollow tube 2, and the slider through setting up is convenient for piston rod 6's removal, and avoids piston rod 6 to follow screw rod 5 and rotate.

Further, in the above technical scheme, the inside wall of hollow tube 2 is provided with a chute corresponding to the position of the slider, the slider is matched with the chute, the transverse sections of hollow tube 2 and piston rod 6 are both square, and the slider can be conveniently moved through the chute.

Further, in above-mentioned technical scheme, the top of first baffle 7 and second baffle 8 all is equipped with the bull stick, just first baffle 7 and second baffle 8 all pass through bull stick swing joint with hollow tube 2, and the activity of being convenient for first baffle 7 and second baffle 8 through the bull stick that sets up is through setting up positive and negative motor 4 and passing through wire and outside block terminal electric connection.

The specific implementation mode is as follows: the containing cylinder 1 is fixed on a desktop through double-sided adhesive tape, when the device is used, a needle 13 penetrates through an experimental animal, the positive and negative rotation motor 4 drives the screw rod 5 to rotate clockwise, the screw rod 5 drives the piston rod 6 to move upwards, the second baffle plate 8 turns clockwise to be opened at the moment, the first baffle plate 7 is closed under the action of the limiting frame 9, the physiological saline in the containing cylinder 1 enters the hollow tube 2, and negative pressure is generated in the containing cylinder 1, the normal saline in the normal saline barrel is extracted through the liquid injection hose 3, then the positive and negative rotation motor 4 drives the screw rod 5 to rotate anticlockwise, the screw rod 5 drives the piston rod 6 to move downwards, at the moment, the second baffle 8 turns anticlockwise, the injection device is closed under the action of the limiting frame 9, the second baffle 7 is clockwise overturned and embedded into the conical tube 10, the physiological saline is injected into the animal carcass through the conical tube 10, the catheter 11, the through tube 12 and the needle 13 in sequence, and the injection device is convenient to operate and use.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides a pressure injection device for animal heart perfuses normal saline, is including holding a dress section of thick bamboo (1), hollow tube (2), annotating liquid hose (3) and just reversing motor (4), its characterized in that: the top of the inner cavity of the hollow pipe (2) is provided with a screw rod (5), the screw rod (5) is in transmission connection with a forward and reverse rotation motor (4) through an output shaft, the bottom of the screw rod (5) is provided with a piston rod (6), the piston rod (6) is in threaded connection with the screw rod (5), and the piston rod (6) is in sliding connection with the hollow pipe (2);

bottom one side of hollow tube (2) is equipped with first baffle (7), the bottom opposite side of hollow tube (2) is equipped with second baffle (8), just first baffle (7) and second baffle (8) all with hollow tube (2) swing joint, bottom one side of first baffle (7) and second baffle (8) is all fixed and is equipped with spacing (9), just spacing (9) and hollow tube (2) butt, the fixed toper pipe (10) that is equipped with in bottom one side of hollow tube (2), one side bottom of bearing section of thick bamboo (1) is fixed and is equipped with siphunculus (12), just toper pipe (10) and siphunculus (12) are through pipe (11) intercommunication, the tip of siphunculus (12) is equipped with syringe needle (13), just syringe needle (13) and siphunculus (12) threaded connection.

2. A pressure injection apparatus for animal cardiac perfusion of saline according to claim 1, characterized by: the hollow pipe (2) is arranged at the center of the inner cavity of the bearing cylinder (1), and the top end and the bottom end of the hollow pipe (2) are welded with the bearing cylinder (1).

3. A pressure injection apparatus for animal cardiac perfusion of saline according to claim 1, characterized by: the liquid injection hose (3) is arranged at the top of the other side of the containing cylinder (1), and the liquid injection hose (3) is in conduction connection with the containing cylinder (1).

4. A pressure injection apparatus for animal cardiac perfusion of saline according to claim 1, characterized by: the positive and negative rotation motor (4) is arranged at the center of the top of the bearing cylinder (1), and the positive and negative rotation motor (4) is connected with the bearing cylinder (1) through a screw material.

5. A pressure injection apparatus for animal cardiac perfusion of saline according to claim 1, characterized by: the bearing is arranged on the outer side of the top end of the screw rod (5), and the screw rod (5) is movably connected with the bearing barrel (1) through the bearing.

6. A pressure injection apparatus for animal cardiac perfusion of saline according to claim 1, characterized by: the bottom both sides of piston rod (6) all are fixed and are equipped with the slider, just piston rod (6) pass through slider sliding connection with hollow tube (2).

7. A pressure injection apparatus for animal heart perfusion of saline as claimed in claim 6, wherein: the inner side wall of the hollow pipe (2) is provided with a sliding groove corresponding to the position of the sliding block, the sliding block is matched with the sliding groove, and the transverse sections of the hollow pipe (2) and the piston rod (6) are both designed in a square shape.

8. A pressure injection apparatus for animal cardiac perfusion of saline according to claim 1, characterized by: the top of the first baffle (7) and the top of the second baffle (8) are both provided with rotating rods, and the first baffle (7) and the second baffle (8) are both movably connected with the hollow pipe (2) through the rotating rods.