Penile prosthesis
US4995380A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1989 |
| Grant date | Feb 26, 1991 |
| Priority date | — |
| Expiry date | Nov 7, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/26
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A penile prosthesis consists of a pair of inflatable penile implants which each having a cylindrical body which contains a hydraulic system including a pressure chamber, a reservoir for pressurizing fluid, and a pump for transferring fluid under pressure to the pressure chamber to make it rigid. Each implant also contains a longitudinally compressible, but radially incompressible bellows in the reservoir which expands when the reservoir is empty and prevents the reservoir wall from collapsing. In one embodiment, a tube extends from the pump in the tip to the reservoir at the rear through the pressure chamber and there is a restricted orifice through which fluid can bleed back into the reservoir from the pressure chamber thus automatically controlling the length of time that the pressure chamber is pressurized and rigid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.