Method for eradicating infectious biological contaminants in body tissues
US4878891A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1987 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Jun 25, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2/0082
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for externally eradicating infectious pathogenic contaminants, such as enveloped viruses, bacteria, trypanosomal and malarial parasites, present in body tissues, such as blood, blood components, semen, skin, and cornea, before the treated body tisues are introduced into, or transplanted onto, the body of a human or an animal. Such method includes the steps of: (1) admixing an effective, non-toxic amount of photoactive compound, whch has a selectivity for binding to the infectious pathogenic biological contaminants present therein, with the body tissues outside the body to produce a resulting body tissues; (2) passing the resulting body tissues through an irradiating cell assembly, and (3) irradiating the resulting body tissues in the irradiating path of the cell assembly for an effective period of time with an effective level of radiation such that the radiation penetrates the resulting body tissues and eradicates the photoactive-compound-bound contaminants present in the resulting body tissues and produces a decontaminated body tissue suitable for introducing into, or transplanting onto, the body of a human or animal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.