Drug delivery method

Abstract

A drug delivery device mainly has a housing, which can be easily held and operated. The housing has one end formed with an adjustment seat capable of adjusting a range distance, and the other end connected to a gas pressure control source for providing mainstream and substream gas pressures. Disposed in the housing are a drug delivery pressuring tube, an embedded drug-can connecting seat or an external drug-can connecting seat, a replaceable drug-can container and a gas communication tube. According to this design, the minor liquid drug can be controlled, the drug-can can be replaced and the continuous quantitative injection of drug can be made. Also, all damaged or dirty members of the invention may be disassembled, cleaned or replaced.

1 .- 15 . (canceled) 
     
     
         16 . A drug delivery method using a drug delivery device, the method comprising the steps of:
 (1) a drug delivery device having quantitative delivery and pressuring and jetting functions being disposed a drug-can container; wherein the drug-can container is able to supply drug;   (2) drug delivery device being coupled to a control source; wherein the control source is able to provide gas pressures to input mainstream and substream gas pressure to the drug delivery device; and   (3) the control source being turned on, so that the drug is injected in an atomized manner after quantitative delivery and pressuring and jetting actions.   
     
     
         17 . The method according to claim  1 , wherein the gas pressures used in the control source are externally inputted, a gas generated by a high-pressure inert gas cylinder is used, and a pressure accumulation tank device is also provided. 
     
     
         18 . The method according to claim  1 , wherein the drug is processed by ultrasonic oscillating and pressuring and then inputted into the drug delivery device. 
     
     
         19 . The method according to claim  1 , wherein the drug delivery device further comprises a housing being constituted by a base, a front sliding cover and a rear sliding cover. 
     
     
         20 . The method according to claim  1 , wherein the drug-can container is a longitudinal sealed container having an opening penetrating through the drug-can container from one end of the drug-can container to the other end of the drug-can container, wherein the one end of the drug-can container is formed with a diameter-reduced inserting portion, on which a sheath may be disposed, and the other end of the drug-can container is formed with a fitting portion with a uniform diameter and is embedded with a soft and slotted plug. 
     
     
         21 . The method according to claim  5 , wherein a gas communication tube has a tip portion corresponding to the opening of the fitting portion of the drug-can container, and is connected to the drug-can container. 
     
     
         22 . The method according to claim  2 , wherein the front slide cover can be rotated to open and close, and the rear sliding cover can slide to open and close, then the drug-can container can be replaced.