Gavage device for animals

Abstract

The present application relates to the technical field of animal gavage, in particular to a gavage device for animals, which comprises a shell, a corrugated hose fixedly connected to one end of the shell, an opening and closing mechanism arranged at the other end of the corrugated hose, and a hollow handle detachably connected to the end of the shell away from the corrugated hose, wherein a filter mechanism is detachably arranged in the hollow handle. The corrugated hose, the electric valve and the delivery pump are used in cooperation, the electric valve is closed and the delivery pump is started before gavage, so that the corrugated hose is inflated and hardened by pre-filling the corrugated hose with liquid medicine, and the corrugated hose has enough stiffness to smoothly pass through the oral cavity and esophagus of the animal during insertion, thereby solving the problem that the existing gavage tube is easily bent and curled during insertion due to the soft tube body, and the insertion is difficult.

Description

Technical Field

[0001] This invention relates to the field of animal gavage technology, specifically to a gavage device for animals. Background Technology

[0002] Gavage is a common method of drug administration or feeding in animal experiments. It involves inserting a gavage needle or tube through the animal's mouth into the esophagus to directly inject the drug or nutrient solution into the animal's stomach. This method is widely used in the fields of pharmacokinetic studies, toxicological evaluations, and nutritional experiments in laboratory animals such as mice, rats, rabbits, and beagles.

[0003] Currently, commercially available and laboratory-made gavage devices are mainly divided into two categories: one is a traditional syringe with a rigid metal gavage needle, which is used to manually inject the drug solution during operation; the other is a peristaltic pump or syringe pump with a flexible silicone tube, which can achieve continuous quantitative delivery.

[0004] In the existing technology, the gavage tube of animal gavage device is mostly a thin and long soft tube made of a single material. When inserted into the animal esophagus, the tube is soft and lacks support, making it easy to bend or curl in the mouth or throat, which makes it difficult to insert smoothly into the esophagus. Forcibly pushing it can easily cause damage to the mucous membrane of the animal's mouth or esophagus, increasing the pain of experimental animals and the failure rate of operation. Summary of the Invention

[0005] The purpose of this invention is to provide an animal gavage device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An animal gavage device, comprising case; A corrugated hose is fixedly connected to one end of the housing, and an opening and closing mechanism is provided at the other end of the corrugated hose. A hollow handle is detachably connected to the end of the housing away from the corrugated hose, and a filter mechanism is detachably installed inside the hollow handle.

[0007] Preferably, the opening and closing mechanism includes an electric valve fixedly connected to one end of the corrugated hose away from the housing, and a balloon fixedly connected to the outside of the electric valve, wherein the outlet end of the electric valve is located outside the balloon and the inlet end extends into the inside of the corrugated hose. Preferably, a delivery pump is fixedly connected inside the housing, one end of the delivery pump is connected to the end of the corrugated hose away from the electric valve, and a controller is fixedly connected to the outside of the housing. Both the electric valve and the delivery pump are electrically connected to the controller. Preferably, a threaded boss is fixedly connected to one end of the housing near the hollow handle, and the end of the delivery pump away from the corrugated hose is fixedly connected to the threaded boss. An internal thread is provided on the inner circumference of the end of the hollow handle near the housing, and the hollow handle is threadedly connected to the threaded boss. Preferably, the filtration mechanism includes a filter cylinder that is detachably housed inside the hollow handle, and an intercepting net that is fixedly connected to the end of the filter cylinder near the threaded boss. A quick connector is fixedly connected to the end of the hollow handle away from the housing, and a water inlet pipe is fixedly connected to the end of the filter cylinder away from the intercepting net. Preferably, a retaining ring is fixedly connected to the outer periphery of the end of the hollow grip away from the shell.

[0008] Compared with the prior art, the beneficial effects of the present invention are: This animal gavage device uses a corrugated hose, an electric valve, and a delivery pump. Before gavage, the electric valve is closed and the delivery pump is started to pre-fill the corrugated hose with the medication, causing it to expand and harden. When inserted, the corrugated hose has sufficient rigidity to pass smoothly through the animal's mouth and esophagus, solving the problem of existing gavage tubes being difficult to insert due to their softness and tendency to bend and curl during insertion.

[0009] This animal gavage device utilizes the stretchable and foldable properties of its corrugated tubing. After use, the tubing can be compressed and folded, significantly reducing the storage length of the device and making it easy to store and carry. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall main structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 For the present invention Figure 2 Enlarged diagram of point B in the middle.

[0011] In the diagram: 1. Housing; 2. Corrugated hose; 3. Hollow handle; 4. Electric valve; 5. Balloon; 6. Delivery pump; 7. Controller; 8. Threaded boss; 9. Filter cartridge; 10. Interception net; 11. Quick connector; 12. Inlet pipe. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] like Figure 1-4 As shown, the present invention provides a technical solution: An animal gavage device includes a housing 1, with a delivery pump 6 fixedly connected inside the housing 1. One end of the delivery pump 6 is connected to the end of a corrugated hose 2 away from an electric valve 4. A controller 7 is also fixedly connected to the outside of the housing 1. Both the electric valve 4 and the delivery pump 6 are electrically connected to the controller 7. The corrugated hose 2 is fixedly connected to one end of the housing 1, and the other end of the corrugated hose 2 is provided with an opening and closing mechanism. The opening and closing mechanism includes an electric valve 4 fixedly connected to the end of the corrugated hose 2 away from the housing 1, and a balloon 5 fixedly connected to the outside of the electric valve 4. The outlet end of the electric valve 4 is located outside the balloon 5, and the inlet end extends into the inside of the corrugated hose 2. A hollow handle 3 is detachably connected to the housing 1 away from the corrugated hose. A retaining ring is fixedly connected to the outer periphery of the hollow handle 3 away from the housing 1 at one end of the hose 2. A threaded boss 8 is also fixedly connected to the end of the housing 1 near the hollow handle 3. The end of the delivery pump 6 away from the corrugated hose 2 is fixedly connected to the threaded boss 8. An internal thread is provided on the inner periphery of the end of the hollow handle 3 near the housing 1. The hollow handle 3 is threadedly connected to the threaded boss 8. A filter mechanism is detachably installed inside the hollow handle 3. The filter mechanism includes a filter cylinder 9 detachably housed inside the hollow handle 3 and an intercepting net 10 fixedly connected to the end of the filter cylinder 9 near the threaded boss 8. A quick connector 11 is fixedly connected to the end of the hollow handle 3 away from the housing 1. A water inlet pipe 12 is fixedly connected to the end of the filter cylinder 9 away from the intercepting net 10.

[0014] Preferably, the corrugated hose 2 is a food-grade silicone corrugated hose.

[0015] Preferably, the balloon 5 is a flexible balloon, and the outer diameter of the balloon 5 gradually decreases from the end near the corrugated hose 2 to the end away from the corrugated hose 2.

[0016] Preferably, a sealing ring is provided at the connection between the housing 1 and the hollow handle 3.

[0017] In this embodiment, by using the corrugated hose 2, electric valve 4 and delivery pump 6 together, the electric valve 4 is closed and the delivery pump 6 is started before gavage to pre-fill the corrugated hose 2 with the drug solution so that it expands and hardens. When inserted, the corrugated hose 2 has sufficient rigidity to pass smoothly through the animal's mouth and esophagus, which solves the problem that the existing gavage tube is easy to bend and curl during the insertion process due to its softness, which makes insertion difficult.

[0018] In this embodiment, thanks to the stretchable and foldable nature of the corrugated hose 2, the device can be compressed and folded after use, which greatly reduces the storage length of the device and makes it easy to store and carry.

[0019] Working principle: Before the gavage procedure, the operator first connects the external supply line to the quick connector 11, then opens the external supply line valve. The medication enters the hollow handle 3 through the quick connector 11. As it flows through the filter cartridge 9, large particles of impurities in the medication are trapped inside the filter cartridge 9 by the interceptor screen 10. After filtration, the medication passes through the interceptor screen 10 and enters the delivery pump 6 through the threaded boss 8. Subsequently, the operator closes the electric valve 4 through the controller 7 and starts the delivery pump 6 to pre-fill part of the filtered medication into the corrugated hose 2, causing the corrugated hose 2 to expand and harden appropriately due to the internal medication filling. Then, the operator holds the handle... The empty handle 3 is inserted into the animal's esophagus along with the balloon 5 and the outlet end of the electric valve 4. After the balloon 5 reaches the predetermined position, the electric valve 4 is opened by the controller 7. At the same time, the delivery pump 6 continuously injects the filtered medicine into the animal's body through the outlet end of the electric valve 4. After the gavage operation is completed, the operator first closes the external liquid supply line valve and starts the delivery pump 6 to drain the residual medicine inside the corrugated hose 2. Then, the electric valve 4 is closed by the controller 7. Subsequently, the balloon 5 and the electric valve 4 are removed from the animal's esophagus. Finally, the hollow handle 3 is disassembled and the filter cartridge 9 is removed. The interception net 10 is then cleaned or replaced.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gavage device for animals, characterized in that: include Shell (1); A corrugated hose (2) is fixedly connected to one end of the housing (1), and an opening and closing mechanism is provided at the other end of the corrugated hose (2); A hollow handle (3) is detachably connected to the end of the housing (1) away from the corrugated hose (2), and a filter mechanism is detachably provided inside the hollow handle (3).

2. The gavage device for animals according to claim 1, characterized in that: The opening and closing mechanism includes an electric valve (4) fixedly connected to one end of the corrugated hose (2) away from the housing (1), and a balloon (5) fixedly connected to the outside of the electric valve (4). The outlet end of the electric valve (4) is located outside the balloon (5), and the inlet end extends into the inside of the corrugated hose (2).

3. The gavage device for animals according to claim 2, characterized in that: A delivery pump (6) is fixedly connected inside the housing (1). One end of the delivery pump (6) is connected to the end of the corrugated hose (2) away from the electric valve (4). A controller (7) is also fixedly connected to the outside of the housing (1). The electric valve (4) and the delivery pump (6) are both electrically connected to the controller (7).

4. The gavage device for animals according to claim 3, characterized in that: The housing (1) is also fixedly connected to a threaded boss (8) at one end near the hollow handle (3). The end of the delivery pump (6) away from the corrugated hose (2) is fixedly connected to the threaded boss (8). The hollow handle (3) is provided with an internal thread on the inner circumference of one end near the housing (1). The hollow handle (3) is threadedly connected to the threaded boss (8).

5. The gavage device for animals according to claim 4, characterized in that: The filtration mechanism includes a filter cylinder (9) that can be detachably housed inside a hollow handle (3), and an intercepting net (10) fixedly connected to one end of the filter cylinder (9) near the threaded boss (8). A quick connector (11) is fixedly connected to one end of the hollow handle (3) away from the housing (1), and a water inlet pipe (12) is fixedly connected to one end of the filter cylinder (9) away from the intercepting net (10).

6. The gavage device for animals according to claim 1, characterized in that: A retaining ring is fixedly connected to the outer periphery of the hollow grip (3) away from the shell (1).

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