Instrument for tumor therapy
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United States of America Patent
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Mar 3, 1998
Grant Date -
N/A
app pub date -
Dec 27, 1996
filing date -
Dec 27, 1996
priority date (Note) -
Expired
status (Latency Note)
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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.
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