Apparatus and method to apply substances to tissue
US8571648B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2005 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Feb 21, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N7/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and apparatuses to apply substances to a biological tissue are described. The tissue having an target below a surface is stretched to provide openings in a surface. Stretching forces a material from the target onto the surface. A first substance may be applied while stretching to promote cleaning the tissue. A second substance may be applied to the surface. Energy may be applied to the tissue. Then the tissue is relaxed to draw the second substance through the openings into the tissue. The tissue may be stretched by applying a negative pressure, and relaxed by removing the negative pressure. The first substance may be an abrasive material. The second substance is a medicine, a moisturizer, a lotion, or any combination thereof. The second substance may be applied to the biological tissue using a positive pressure. The apparatus to apply substances may be a handheld device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.