Implantable drug storage devices for drug delivery

US11583627B1 · kind B1 · utility

Assignee

• University of South Florida · US

Inventors

• Farzad Forouzandeh · Rochester, US
• David A. Borkholder · Rochester, US
• Robert Dana Frisina · Tampa, US
• Joseph Paul Walton · Tampa, US
• Xiaoxia Zhu · Xuzhou, CN

Key dates

• Filing date: Oct 18, 2019
• Grant date: Feb 21, 2023
• Expiry date: Apr 24, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2210/0662
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In one embodiment, a fluid storage device includes a rigid outer housing that defines a septum cavity, a reservoir cavity, and a channel that extends between the two cavities, the outer housing further defining an outlet in fluid communication with the reservoir cavity, a septum provided within the septum cavity, the septum being made of an elastic polymer and facilitating refilling of the fluid storage device, and a thin, collapsible membrane that does not generate significant restoring forces when it is deformed as fluid is drawn from the reservoir cavity and, therefore, does not completely or partially return to its initial non-deformed shape even if the outlet of the device remains open after doses are administered.