초록 ▼

A procedure for the administration of insulin or similar long-term medicaments utilizing an elastic element, for example a membrane dividing a reservoir into two chambers, one of which holds the medicament and the other containing a temperature-dependent vapour pressure and the remaining liquid prop

A procedure for the administration of insulin or similar long-term medicaments utilizing an elastic element, for example a membrane dividing a reservoir into two chambers, one of which holds the medicament and the other containing a temperature-dependent vapour pressure and the remaining liquid propellant gas. By means of the membrane, the medicament, permanently pressurized by the propellant gas, is injected into the body through an outlet opening. The invention seeks to achieve differing ratios of medicament dosage by providing for the external raising of the temperature of the propellant and thereby the pressure of the gas, and thus increasing the injected quantity at required time intervals. It is preferred that the dosage be dependent on the level of blood sugar in the body.

대표청구항 ▼

Apparatus for the administration of a long-term medicament, such as insulin, to the body of a person, comprising: a dosage device implanted in the body and comprising a reservoir having two chambers separated by an elastic membrane, one of said chambers containing the medicament and the other chambe

Apparatus for the administration of a long-term medicament, such as insulin, to the body of a person, comprising: a dosage device implanted in the body and comprising a reservoir having two chambers separated by an elastic membrane, one of said chambers containing the medicament and the other chamber containing a liquid propellant having a temperature-dependent vapour pressure to substantially continuously maintain pressure on the medicament via said membrane, said chamber containing the medicament having an outlet in communication with the body, means for determining at certain times the need of the body for the medicament by sensing a blood component of said person, an electrical means at the dosage device for altering the temperature of the propellant to alter its vapour pressure to exert altered pressure via the elastic membrane to control the amount of medicament discharged through the outlet in accordance with the electrical power supplied to the device, and means for controlling the electrical power supplied to said electrical device to govern the quantity of medicament dispensed at said certain times.