EXPANDABLE BRACHYTHERAPY DEVICE WITH CONSTANT RADIATION SOURCE SPACING
First Claim
Patent Images
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;
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;
a handle in which the movable actuator moves; and
a rod running through the outer and inner cages that is attached to the handle at a distal end.
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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.
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Citations
20 Claims
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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; 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; a handle in which the movable actuator moves; and a rod running through the outer and inner cages that is attached to the handle at a distal end. - View Dependent Claims (2, 3, 4, 5, 8, 9, 10, 11, 12)
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6. (canceled)
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7. (canceled)
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14. (canceled)
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15. (canceled)
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16. 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 rotatable actuation mechanism configured to cause the outer and inner cages to expand in response to rotations of the rotatable actuator between certain positions.
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Specification