Instrument for tumor therapy
US5722985A · kind A · utility
Inventor
Key dates
| Filing date | Dec 27, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Dec 27, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1011
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An instrument for treating deep malignant brain tumors. A slender conically-tipped yttrium tubular instrument is provided for simultaneous intra-tumor surgery, aspiration, and brachytherapy. Features include: minimally disruptive stereotactic access to the tumor, incremental rotary surgical excision from the center of the tumor, vacuum aspiration of excised matter and fluids through the tubular instrument, intense tumor-confined yttrium-90 beta radiation, and progressive suction collapsing of the tumor. Potential benefits include: tumor bulk reduction, relief of intracranial pressure, confined radiation of marginal tumor extensions, radiation sterilization of the instrument, prevention of seeding, and avoidance of radiation necrosis complications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.