Vacuum assisted closure pad with adaptation for phototherapy
US6994702B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2000 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Apr 6, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0645
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A modified vacuum assisted wound closure system adapted for concurrent applications of phototherapy having a foam pad for insertion substantially into the wound site and a wound drape for sealing enclosure of the foam pad at the wound site. The foam pad includes an optical pigtail, whereby desired wavelength of light may be directed into and about the wound site. The foam pad is placed in fluid communication with a vacuum source for promotion of fluid drainage. The foam pad is made of a highly reticulated, open-cell polyurethane or polyether foam for good permeability of wound fluids while under suction and is also embedded with an optical pigtail. The optical pigtail comprises an optical fiber that has been formed to fan into a plurality of sections. The fibers of the most distal fanned sections, which are implanted in the foam pad at its base, are provided with tiny optical slots, oriented away from the foam pad and toward the wound site. Each optical slot is made by stripping the cladding from the optical fiber in the desired areas of the fanned sections to form slot radiators. Because it is necessary to trim the foam pad in preparation for therapy, the optical fibers comprise p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.