Beth Anne Allison - Vancouver, CA Philippe Maria Clotaire Margaron - Burnaby, CA Valery Rubinchik - Richmond, CA Russell G. Hodge - Healdsburg CA, US Michael David Leslie Stonefield - Vancouver, CA
Assignee:
QLT, Inc. - Vancouver
International Classification:
A61K 31/40
US Classification:
514410
Abstract:
The present invention relates to the use of low-dose photodynamic therapy (PDT) to prevent, treat, inhibit or reduce restenosis in blood vessels. The present invention may be used in combination with any angioplastic procedure to prevent restenosis or to decrease the intima thickness, and thus luminal narrowing.
Hyperthermia Radiation Apparatus And Method For Treatment Of Malignant Tumors
Victor Chornenky - Santa Rosa CA, US Vance Swanson - Santa Rosa CA, US Russell Hodge - Healdsburg CA, US Peter Davis - Windsor CA, US
International Classification:
A61N005/00
US Classification:
600/003000
Abstract:
The present invention relates to a device for simultaneously treating a tumor or cancerous growth with both hyperthermia and X-ray radiation using brachytherapy. The device includes a needle-like introducer serving as a microwave antenna. Microwaves are emitted from the introducer to increase the temperature of cancerous body tissue. The introducer is an inner conductor of a coaxial cable. The introducer contains a hollow core which houses an X-ray emitter. The X-ray emitter is connected to a high voltage miniature cable which extends from the X-ray emitter to a high voltage power source. The X-ray emitter emits ionizing radiation to irradiate cancerous tissue. A cooling system is included to control the temperature of the introducer. Temperature sensors placed around the periphery of the tumor monitor the temperature of the treated tissue.
Jeremy Emken - Huntington Beach CA, US Russell Hodge - Healdsburg CA, US
International Classification:
A61B005/00
US Classification:
600/585000
Abstract:
An apparatus for radially centering a treatment region of a brachytherapy catheter in a lumen of a body vessel. The centering apparatus includes a monofilament wire-form that is pre-shaped to have an expanded configuration having multiple lobes arranged in a radially symmetrical staggered sequence along the treatment region of the catheter. The centering apparatus also has a collapsed configuration that is formable about the catheter by drawing apart the ends of the wire-form. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)