Medication administering device
Patent 5318557 Issued on June 7, 1994. Estimated Expiration Date: 
February 22, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 22, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesUnit system having multiplicity of means for dispensing useful agent Implantable battery monitoring means and method Implantable infusion device Device for delivering a pharmacologically active principle by electrolytic pumping Multiple vesicle implantable drug delivery system Patent #: 5167625 InventorAssigneeApplicationNo. 020941 filed on 02/22/1993US Classes:604/891.1, Implanted dynamic device or system604/141, Material impelled by means (e.g., diaphragm, piston) moved by gas or vacuum pressure604/890.1CONTROLLED RELEASE THERAPEUTIC DEVICE OR SYSTEMExaminersPrimary: Weiss, John G.Attorney, Agent or FirmInternational ClassesA61K 009/22A61M 037/00 Foreign Application Priority Data1992-07-13 IEAbstractA medication administering device includes a housing introducible into a body cavity and of a material insoluble in the body cavity fluids, but formed with an opening covered by a material which is soluble in body cavity fluids. A diaphragm divides the interior of the housing into a medication chamber including the opening, and a control chamber. An electrolytic cell in the control chamber generates a gas when electrical current is passed therethrough to deliver medication from the medication chamber through the opening into the body cavity at a rate controlled by the electrical current.Field of SearchMaterial impelled by means (e.g., diaphragm, piston) moved by gas or vacuum pressurePiston impelled by gas or vacuum pressure Means broken, cut, pierced, or torn to permit material flow Material impelled by pump CONTROLLED RELEASE THERAPEUTIC DEVICE OR SYSTEM Implanted dynamic device or system Osmotic or diffusion pumped device or system With wall-collapsing means Of dispensers with fluid pressure discharge assistance Nonrigid follower | |
