Infusion device with positive pressure elastic bladder reservoir
US8221354B2 · kind B2 · utility
5Cited by
14References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2006 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | May 18, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/36
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Implantable drug infusion devices, systems and methods for delivering therapeutic substance to a subject that include a bulkhead and an attached reservoir formed by an elastic bladder are disclosed. When filled with therapeutic substance, the elastic bladder is elastically expanded such that the therapeutic substance is held at a pressure above ambient pressure. As the therapeutic substance is removed from the reservoir, the bladder collapses and may conform to the shape of the bulkhead surface over which it is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.