Patent ID: 8317740

Claim:
A drug pressuring and delivering system, comprising: a drug pressuring and delivering device, which comprises one set of an upper cover and a base matching with each other, a drug delivery pressuring tube having a circumferential surface formed with a combination portion, and a fixed receptacle externally connected to a mainstream gas source in the form of a tube, so that the mainstream gas source is inputted at a high pressure; and a quantitative pusher, which comprises one set of an upper cover and a housing seat matching with each other, a screw rod quantitative pusher, a cylindrical drug delivering pipe and a baffle, wherein the screw rod quantitative pusher has one end connected to a screw rod of a bidirectional motor and the other end fixed to a movable block, a fixing sheet is fixed to one side of the movable block so that a micro switch and a circuit board can be electrically connected thereto and disposed thereon, a push rod holding device is pivotally mounted on the movable block, the cylindrical drug delivering pipe is composed of a drug delivering needle and a push rod, a front end of the drug delivering needle is clamped and positioned by a receptacle fixed to a combination portion, the baffle is disposed between the cylindrical drug delivering pipe and the screw rod quantitative pusher and has a surface formed with a supporting seat, an axial guiding slot and a radial accommodating slot connected to the axial guiding slot, the supporting seat is provided such that the drug delivering needle of the cylindrical drug delivering pipe is stably disposed, and the accommodating slot allows the push rod holding device to penetrate therethrough and makes an engagement portion, pivotally connected to the movable block, to move in the guiding slot, wherein the circuit board controls the bidirectional motor to drive the screw rod to rotate forward or reversely to drive the push rod holding device to push or pull the push rod forward or backward, so that quantitative delivery and drug pressuring and ejecting are achieved.