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Intragastric administration device

A technology of gavage device and hollow needle, which is applied in the field of gavage device, can solve the problems that the pharmacological action process of solid drugs cannot be truly reflected and the experimental data is inaccurate.

Active Publication Date: 2010-12-29
北京晶润宏达医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the experimental method of dissolving the solid drug into a liquid and then delivering it to the stomach of the experimental animal through a gastric feeding device in the prior art cannot truly reflect the pharmacological action process of the solid drug. The experimental data is also inaccurate

Method used

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Experimental program
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Embodiment Construction

[0067] Before referring to the accompanying drawings in detail, the directions in the accompanying drawings are first defined: the direction towards the experimental animal is the front, and vice versa is the rear; the direction perpendicular to the table top of the operating table and opposite to the direction of gravity is the upper direction , and vice versa below.

[0068] see figure 2 , The stomach feeding device of the present invention includes an elastic force applying part 1, a hollow needle 2, a medicine pushing rod 3, a support 4 and a screw 5 for fastening. The overall assembly relationship and working principle between the parts of the gastric feeding device of the present invention are as follows: the front part of the shell 11 of the elastic force applying part 1 is figure 2 The part shown is removed to form a semi-cylindrical housing part 111, the support 4 is installed near the front end of the housing part 111, the hollow needle 2 is held in the holding pa...

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Abstract

The invention provides an intragastric administration device by which solid medicine can be fed to the stomach of an experimental animal orally. The intragastric administration device of the invention comprises a hollow needle (2) and a medicine pushing rod (3), wherein the hollow needle (2) is a hollow long rod-shaped component of which the front end can be inserted into the stomach of the experimental animal, and comprises a front end opening as a medicine outlet and a back end opening as a medicine inlet; the medicine pushing rod (3) is a solid long rod-shaped component which can be inserted into the hollow needle, and comprises a front end and a back end; and the back end of the medicine pushing rod is used for receiving external pushing force. When the medicine pushing rod is inserted from the back end opening of the hollow needle into the hollow needle containing the medicine, external pushing force can be applied to the back end of the medicine pushing rod to push the medicine by the front end of the medicine pushing rod out from the front end opening of the hollow needle into the stomach of the experimental animal.

Description

technical field [0001] The present invention relates to a gavage device for orally delivering medicine to the stomach of experimental animals, in particular to a gavage device for directly delivering solid medicine orally to the stomach of experimental animals. Background technique [0002] With the development of life science and technology, animal experiments have become the basic method of medical experimental research. According to the purpose of the experimental research, the type of experimental animals, and the dosage form and dose of the drug, different drug administration methods are required for the experimental animals. Especially for the determination of toxicology, efficacy research and dosage of medicine, oral gavage administration method is an important way. [0003] In animal experiments, people generally use a gastric irrigation device to inject drugs into the stomachs of experimental animals. Stomach feeding device in the prior art such as figure 1 As sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61D7/00
Inventor 杜冠华
Owner 北京晶润宏达医药科技有限公司
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