Expandable Brachytherapy Device with Constant Radiation Source Spacing
First Claim
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1. A brachytherapy device comprising:
- an expandable outer cage;
an expandable inner cage positioned within the outer cage and configured to receive radioactive material at its perimeter; and
a movable actuator configured to cause the outer and inner cages to expand simultaneously in response to movement of the actuator between certain positions while maintaining a substantially constant separation distance between the outer and inner cages.
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Abstract
A brachytherapy device may include an expandable outer cage, an expandable inner cage positioned within the outer cage and configured to receive radioactive material at its perimeter, and a movable actuator configured to cause the outer and inner cages to expand simultaneously in response to movement of the actuator between certain positions while maintaining a substantially constant separation distance between the outer and inner cages.
9 Citations
1 Claim
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1. A brachytherapy device comprising:
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an expandable outer cage; an expandable inner cage positioned within the outer cage and configured to receive radioactive material at its perimeter; and a movable actuator configured to cause the outer and inner cages to expand simultaneously in response to movement of the actuator between certain positions while maintaining a substantially constant separation distance between the outer and inner cages.
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Specification
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Current AssigneeNorth American Scientific, Inc.
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Original AssigneeNorth American Scientific, Inc.
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InventorsWinch, Frederick, Terwilliger, Richard A., Cutrer, L. Michael, Wong, Joe
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Application NumberUS12/037,534Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current600/3CPC Class CodesA61N 2005/1018 with multiple channels for ...A61N 5/1015 Treatment of resected cavit...
