The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 1997
Filed:
Oct. 03, 1996
James C Chen, Bellevue, WA (US);
Brent Wiscombe, Mesa, AZ (US);
Light Sciences Limited Partnership, Redmond, WA (US);
Abstract
A method and apparatus for administering intracorporeal photopheresis to blood flowing in a patient's body to destroy an undesirable component in the blood, where the undesirable component has absorbed a photoreactive agent having a characteristic light absorption waveband. The apparatus includes an implantable housing that is adapted to be placed transcutaneously within a patient's body. An inlet and outlet for a fluid path through the housing are provided and are coupled to a patient's circulatory system so that they convey blood into and out of the housing. Light sources disposed within the housing(or externally disposed and coupled to the housing by optical fibers) emit light having a waveband substantially equal to the absorption waveband of the photoreactive agent. A portion of the fluid path within the housing is optically transparent so that blood is irradiated with light from the light source. The fluid path can have one of several different configurations, including serpentine, planar coil, helical coil, and cross tubes coupling inlet and outlet header manifolds. The light source can comprise light emitting diodes (LEDs) or other types of light sources and may be coupled to the reactor through optical fibers. The power supply for the light source can be intracorporeal or extracorporeal.