Method and apparatus for maintaining patency in the body passages
US5078736A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 1990 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | May 4, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intraluminal stent for maintaining patency in body passages subject to invasive tissue growth includes a cylindrical wall having radial passages therethrough. A mechanism is provided for disrupting cellular growth which penetrates through the passages. The mechanism may provide for mechanical disruption, thermal disruption, or preferably for excision using radio frequency energy. In a specific embodiment, the cylindrical wall is defined by a tubular mesh, and the mechanism for disrupting cellular growth comprises parallel wires within the mesh. The wires are connected to an external radio frequency source and act as electrodes in effecting excision using the radio frequency energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.