Drug delivery method and device thereof

Abstract

A method of administering medicine. The fluid is introduced into the container containing the medicament, and the fluid flows along the pressure relief cavity, and is discharged to the pressure relief through hole of the container. After the flow rate of the fluid is stabilized, when in use, the pressure relief through hole Closed, the fluid enters the pressure chamber, flows along the pressure chamber, is discharged from the outlet of the pressure chamber, and pushes the medicine to be delivered to the outlet of the container. The method provided by the invention can deliver the medicament in the container in a more stable, sustained and balanced propulsion mode and in a more relaxed form, effectively avoiding the sudden release of pressure and causing the medicament to be reacted by the target tissue to fill the field of view of the laparoscope, making the drug delivery (such as: hemostatic agent) is more accurate, and at the same time improves the continuity of laparoscopic surgery, improves the hemostatic effect, and shortens the operation time.

Description

technical field [0001] The present invention relates to a drug delivery method, in particular to a method for delivering medicine in a container, and a delivery device, so as to facilitate the medicine to exert a therapeutic effect on the target tissue. Background technique [0002] Compounds and polymers with therapeutic and preventive effects on diseases can only achieve good drug effects in vivo if they are administered to patients in an appropriate technical manner. Oral administration is the most common technique for administering compounds and polymers with therapeutic and prophylactic effects to patients, as well as injection, transdermal, pulmonary and nasal administration. In order to extend the dosing interval and improve the patient's compliance, the technology of chemical coupling or embedding of compounds or polymers has been produced to improve the bioavailability of drugs and keep them in the therapeutic window for a longer time, reducing the Drug side effect...

AI Technical Summary

Problems solved by technology

The device can quickly stop the bleeding target tissue, but at the moment of opening the valve, there is an instantaneous pressure release—the pressure of the injected fluid is increased instantaneously, so that the therapeutic agent has an instantaneous impact on the tissue under the pressure of the hemostatic powder, The reaction force of the action site produced by the impact on the tissue makes the hemostatic powder cover the field of vision, making it impossible to continue to observe. continuity of laparoscopic surgery

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