Laser assisted pharmaceutical delivery and fluid removal
US6315772A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1997 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Oct 22, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2037/0007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides an improved method of removing fluids, gases or other biomolecules, or delivering a pharmaceutical composition, through the skin of a patient without the use of a sharp or needle. The method includes the step of irradiating the stratum corneum, an applied pharmaceutical or an absorbing material, using a laser. By selection of parameters, the laser irradiates the selected material or tissue to create pressure gradients, plasma, cavitation bubbles, or other forms of tissue ablation or alteration. These methods increase the diffusion of pharmaceuticals into, or fluids, gases or other biomolecules out of, the body. For this invention, a pharmaceutical composition can be applied to the skin before or after laser irradiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.