Method and apparatus for grafting of skin tissue
US9451979B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Apr 29, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3225
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and apparatus are provided for affecting an appearance of skin by harvesting small portions of tissue from a donor (first) site and applying them at a recipient (second) site. A plurality of micrografts can be formed from a piece of graft tissue and attached to a dressing material. The dressing material can then be expanded to increase a separation distance between the micrografts, and the dressing material having spaced-apart micrografts attached thereto can be applied to a prepared recipient site. An apparatus can be provided that expands the dressing material using a pressurized fluid. A further method can include providing a suspension of small portions of graft tissue in a solution. The solution can be injected into blisters formed at a recipient (second) site and the tissue portions allowed to attach and proliferate. A method and apparatus can also be provided for forming corresponding blisters at a donor site and at a recipient site. The raised (removed) portions of the blisters can be removed and attached to a dressing material, and the portions from the donor (first) site can be placed onto the exposed blister areas at the recipient site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.