CN213607120U - Stomach balloon device for animal experiment - Google Patents

Abstract

The utility model discloses a stomach sacculus device for animal experiments, which comprises an air duct for conveying gas, an expansion part connected with one end of the air duct, an air supply ball connected with the expansion part through the air duct, and a fixing part sleeved on the air duct; compare in current stomach sacculus, the utility model discloses in add the fixed part, can prevent that inflation portion or air duct from taking place to remove, avoid causing unexpected damage to subject's stomach or other tissues, the structure is reliable, and convenient to use has stronger practicality.

Description

Stomach balloon device for animal experiment

Technical Field

The utility model belongs to medical treatment experimental apparatus field, concretely relates to stomach sacculus device for animal experiments.

Background

With the development of science and technology and the integration of multiple science, animal experiments have become the basic method for research of medical science, food safety science and other related scientific experiments. Since the stomach pain response can provide direct evidence for antinociception and anti-inflammatory effects, experiments for studying the stomach pain response of animals are very important.

At present, the method for inducing the pain sensitivity reaction of the stomach of an animal is single, a saccule is arranged in the stomach of an experimental animal through an operation, and the saccule is inflated by conveying gas into the saccule, so that the stomach of the animal is filled and propped open, and the pain sensitivity reaction of the stomach is triggered.

However, the existing stomach balloon has a simple structure and a single function, and after being implanted into the stomach of an animal, a surgical incision is only sutured by using a surgical instrument, and a means for fixing the balloon and a gas pipe is lacked, so that the balloon and a part of the pipe in the stomach are easily influenced by external force to displace, and further the stomach or other tissues of an experimental object are accidentally damaged, and the final experimental result is influenced.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a stomach sacculus device for animal experiments aims at solving current sacculus device and takes place to remove easily, causes the damage to the animal stomach, influences the problem of experimental result.

The utility model adopts the following technical scheme:

a gastric balloon device for animal experiments, comprising:

a gas duct for conveying gas;

the expansion part is connected to one end of the air duct, and the interior of the expansion part is communicated with the air duct;

the fixing part is sleeved on the air guide pipe and used for positioning the expansion part;

and the air delivery balloon is connected with the expansion part through the air guide pipe and is used for inputting air to the expansion part to expand the expansion part.

In some embodiments, the airway tube and the inflation portion are both made of a silicone material.

In some embodiments, the fixing part is provided with a bandage, and the bandage is used for binding the fixing part on the experimental animal.

In some embodiments, the airway tube is also connected to a pressure gauge.

In some embodiments, the pressure gauge is a desktop sphygmomanometer.

In some embodiments, the airway tube is further provided with a folding elastic section.

In some embodiments, the expanded portion has a diameter of 2cm in a default state.

The utility model has the advantages that:

1. the utility model is additionally provided with the fixed part, which can prevent the expansion part or the air duct from moving, has reliable structure, convenient use and stronger practicability;

2. the air duct and the expansion part are made of silica gel materials, so that the air duct and the expansion part have good biocompatibility, and large artifacts generated during MRI examination are avoided;

3. be connected with the pressure gauge, the pressure value of stomach inflation portion after can real-time supervision gas transmission makes the experimental condition more clear and definite, improves the detailed degree of experimental result.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of a fixing portion according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a gastric balloon device in the prior art.

In the figure: 1-air duct, 2-expansion part, 3-fixing part, 4-balloon, 5-binding band, 6-pressure gauge and 7-folding elastic section.

Detailed Description

In the following description, the terms "center", "horizontal", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used to indicate the orientation or positional relationship indicated on the drawings, but are only used for convenience of description and simplicity of description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the invention.

As shown in fig. 1, a gastric balloon apparatus for animal experiments, comprising:

the gas guide pipe 1 is used for conveying gas;

the expansion part 2 is connected with one end of the air duct 1, and the interior of the expansion part is communicated with the air duct 1;

the fixing part 3 is sleeved on the air guide pipe 1 and used for positioning the expansion part 2;

and a balloon 4 connected to the inflatable part 2 through an air duct 1, for introducing air into the inflatable part 2 to inflate the same.

When the inflatable stomach tube is used, the inflatable part 2 is placed in the stomach of an animal through an operation, the air guide tube 1 penetrates through the stomach wall and extends out of the animal body, the fixing part 3 is sleeved on part of the air guide tube 1 outside the animal body, and the bottom of the fixing part 3 is in contact with the epidermis of an experimental animal. The experimenter holds the balloon 4 to convey air to the expansion part 2, so that the expansion part 2 is expanded to fill the stomach of the animal, the pain sensitivity reaction of the animal is induced, the animal behavior is observed, and the neck electromyogram data is collected.

The air duct 1 and the expansion part 2 are both made of silica gel materials, on one hand, the silica gel has good biocompatibility proved by years of clinical application; on the other hand, the metal material is avoided, and the generation of large artifacts in Magnetic Resonance Imaging (MRI) examination is avoided.

As shown in fig. 2, the bottom of the fixing portion 3 is connected with an arch made of elastic material, and the arch can better fit the curve of the animal's exterior and is beneficial to positioning. Be equipped with on fixed part 3 and bandage 5, the one side of bandage 5 is equipped with the matte of magic subsides, and the another side is equipped with the needle face that the magic was pasted, and bandage 5 walks around animal body a week, and the magic of one end is pasted the matte and is pasted the needle face with the magic of the other end and bond mutually, plays and bindes fixed part 3 at the effect on the experimental animals body, prevents that expansion part 2 or air duct 1 from taking place axial displacement. The design of the bandage 5 is suitable for various experimental animals with different body sizes, and has certain universality.

The airway tube 1 is also connected to a pressure gauge 6, and the pressure gauge 6 may be a desk-top sphygmomanometer. The pressure value of the stomach inflation part after gas transmission can be monitored in real time through the sphygmomanometer, experimenters can respectively carry out experiments under the pressures of 20 mmHg, 40 mmHg, 60 mmHg, 80 mmHg and 100mmHg, animal behaviors are observed, neck myoelectric data are collected, the experiment conditions are more definite, and the detail degree of the experiment results is improved. And the desk-top sphygmomanometer is easy to obtain, and the cost and the time can be saved during manufacturing.

Still be equipped with folding elasticity section 7 on the air duct 1, this folding elasticity section 7 sets up between fixed part 3 and air feed ball 4, and when outside air duct 1 was pulled by accident, radial movement can not take place for fixed part 3 and the internal air duct 1 of animal, when the gas transmission effect of normal performance, avoids the internal air duct 1 of animal and inflation portion 2 to take place to remove, can not lead to the fact the damage to the stomach of experimental animals and other tissues.

The diameter of the inflation part 2 in the default state is 2cm, and the inflation part 2 having this size can be applied to various experimental animals.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. Which all fall within the protection scope of the utility model. The protection scheme of the utility model is based on the appended claims.

Claims (7)

1. A stomach balloon device for animal experiments, characterized by comprising:

a gas duct (1) for conveying gas;

the expansion part (2) is connected to one end of the air duct (1), and the interior of the expansion part (2) is communicated with the air duct (1);

the fixing part (3) is sleeved on the air guide pipe (1) and used for positioning the expansion part (2);

and the air delivery balloon (4) is connected with the expansion part (2) through the air duct (1) and is used for inputting air into the expansion part (2) to expand the expansion part.

2. The gastric balloon device for animal experiments according to claim 1, wherein the airway tube (1) and the inflation part (2) are both made of silica gel material.

3. The stomach balloon device for animal experiments according to claim 1, wherein a bandage (5) is arranged on the fixing portion (3), and the bandage (5) is used for binding the fixing portion (3) on the experimental animal.

4. Gastric balloon device for animal experiments, according to claim 1, characterized in that the airway tube (1) is also connected to a pressure gauge (6).

5. Stomach balloon device for animal experiments according to claim 4, characterized in that the pressure gauge (6) is a table sphygmomanometer.

6. The gastric balloon device for animal experiments according to claim 1, wherein the airway tube (1) is further provided with a folding elastic section (7).

7. The gastric balloon device for animal experiments according to any of claims 1 to 6, wherein the bulge (2) has a diameter of 2cm in a default state.

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