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Chemical reaction gas pressure type microcapsule medicine release method and apparatus thereof

A chemical reaction, microcapsule technology, applied in capsule delivery, drug devices, other medical devices, etc., can solve problems such as inability to meet drug treatment requirements and deficiencies, and achieve the effect of improving space utilization, large space, and small volume

Inactive Publication Date: 2008-03-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the total amount of liquid release can only reach 1000μL / min at most, which is still slightly insufficient and cannot meet our drug treatment requirements

Method used

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  • Chemical reaction gas pressure type microcapsule medicine release method and apparatus thereof

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Embodiment Construction

[0032] By adopting the invention, various MEMS devices can be developed, for example, in vivo capsule drug release micro-electro-mechanical systems used for the treatment of digestive tract diseases and the research of human drug absorption. In this embodiment, the development of a microcapsule drug release device used in the study of human drug absorption is taken as an example.

[0033] As shown in Figure 1, the gas source device and baffle plate 12, power supply 1, housing 6, one-way valve 13 and 8, drug storage bag 7 constitute microcapsule drug release device, wherein, the gas source device consists of chemical substance cabin 2, 10 , a sealing isolation layer 4 and a solenoid valve 9, the gas source device equipped with chemical substances that can generate gas through the reaction is installed between the power supply 1 and the drug storage bag 7, and the baffle plate 12 seals the gas source device and the drug storage bag 7 A one-way valve 12 is installed on the baffle...

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Abstract

The invention relates to a chemical reaction compressed air drug discharging method of microcapsule, which via the air pressure generated by the chemical reaction drives the drug storage sac of microcapsule to discharge the drug. And said invention also relates to the relative chemical reaction compressed air drug discharging apparatus of said method comprises a gas source device, a baffle, a power source, a housing, two one-way valves, a magnetic valve and a drug storage sac. Wherein, the gas source device containing the chemical which can generate gas via the chemical reaction is mounted between the power source and the drug storage; the baffle sealed separates the gas source device and the drug storage sac while the one-way valve is mounted on said baffle; and another one-way valve is arranged on the contacting part between the drug storage sac and the housing. The invention can control the mixed reaction of chemical, realize the automatic control on the drug discharging apparatus and improve the operation efficiency.

Description

technical field [0001] The invention relates to the technical field of micro-electromechanical systems in the subject of mechanics, in particular to a chemical reaction air pressure microcapsule drug release method. The invention also relates to said drug release device. Background technique [0002] Micro Electro Mechanical System (MEMS) research is the frontier field of mechanical science, which involves electronic engineering, mechanical engineering, material science, physics, chemistry and biomedicine and other multidisciplinary fields. In vivo drug release microrobots are typical microelectromechanical systems, which have very broad application prospects and social needs. For example, it can be used for the treatment of digestive tract diseases, human drug absorption, etc. [0003] Existing driving methods for drug release include the following: [0004] 1) The electrostatic drive method is mainly composed of a movable electrode and a fixed electrode. The pressure ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M31/00A61K9/48
CPCA61M31/00
Inventor 陈扬枝刘文光黄少斌黄平
Owner SOUTH CHINA UNIV OF TECH
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