초록 ▼

The device also includes an improved filling system that enables the reservoir within the device to be filled with drug from a source without regard to filling position and with a decreased risk of injury from needles. Moreover, the filling system provides an accurate measure of drug transferred int

The device also includes an improved filling system that enables the reservoir within the device to be filled with drug from a source without regard to filling position and with a decreased risk of injury from needles. Moreover, the filling system provides an accurate measure of drug transferred into the device thus enabling patients to fill the devices and to ensure proper dosage upon delivery.

대표청구항 ▼

[ What is claimed is:] [1.] A subcutaneous drug delivery device comprising:a housing having an internal reservoir and an expandable chamber disposed relative to the reservoir,a drug delivery needle extending from the housing for penetration of the skin of a subject, the needle having an outlet for d

[ What is claimed is:] [1.] A subcutaneous drug delivery device comprising:a housing having an internal reservoir and an expandable chamber disposed relative to the reservoir,a drug delivery needle extending from the housing for penetration of the skin of a subject, the needle having an outlet for drug delivery,a fluid path defined between the delivery needle outlet and the reservoir,means for providing a gas at a controllable rate into the expandable chamber,and a flow regulating chamber, in communication with the fluid path, which is capable of volumetric changes in response to temperature and/or pressure changes.