Stepper apparatus for use in the imaging/treatment of internal organs using an ultrasound probe
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United States of America Patent
Stats
-
Feb 16, 1999
Grant Date -
N/A
app pub date -
Oct 14, 1997
filing date -
Oct 14, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The stepper apparatus for use in imaging/treatment of prostate cancer with radioactive seeds includes a body portion, a support element for holding the ultrasound probe, a slide portion for moving the support element relative to the body portion, and a support element for holding a template which has a plurality of openings therethrough, through which radiation seed insertion needles may be positioned. The ultrasound probe may be moved longitudinally relative to the prostate in indexed steps of a known distance and also may be moved in a controlled, continuous fashion to determine the rear edge of the prostate which can then be used as a reference for future indexed steps. The slide portion moves along two spaced guide rods, one of which has a threaded portion which mates with a spring-loaded ball in the side of the slide portion as well as a rack and gear arrangement for accomplishing the dual (indexed and continuous) motion.
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