Expandable brachytherapy device
First Claim
1. A brachytherapy device comprising:
- an elongate member comprising a proximal portion and a distal portion;
a movable surface portion surrounding at least the distal portion of the elongate member;
structure associated with said movable surface portion for causing movement of the movable surface portion from a first position to a second position;
a plurality of source lumen tubes surrounding the elongate member, the source lumen tubes secured to said proximal portion and associated with the movable surface portion, distal ends of the source lumen tubes secured to the distal portion of the elongate member, the source lumen tubes extending a sufficient distance along said proximal portion such that said source lumen tubes extend outside a body when said movable surface portion is positioned for brachytherapy in a surgical cavity and the source lumen tubes define a curved configuration within the surgical cavity, the source lumen tubes defining respective source lumens; and
a source of radiation suitable for insertion into the source lumens.
7 Assignments
0 Petitions
Accused Products
Abstract
A brachytherapy device for the provision of brachytherapy is disclosed. The brachytherapy device has at least one source lumen located outside a movable surface of the device. The source lumen may be secured to the movable outer surface in a manner whereby relative movement of the source lumen relative to the movable outer surface is permitted. The brachytherapy device is inserted into a body cavity. After insertion, the movable surface is moved to position the at least one source lumen closer to the tissue boundary of the cavity. One or more sources of radiation are then placed within the at least one source lumen to provide a customizable treatment. Also disclosed are methods for providing brachytherapy via body cavities.
198 Citations
28 Claims
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1. A brachytherapy device comprising:
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an elongate member comprising a proximal portion and a distal portion; a movable surface portion surrounding at least the distal portion of the elongate member; structure associated with said movable surface portion for causing movement of the movable surface portion from a first position to a second position; a plurality of source lumen tubes surrounding the elongate member, the source lumen tubes secured to said proximal portion and associated with the movable surface portion, distal ends of the source lumen tubes secured to the distal portion of the elongate member, the source lumen tubes extending a sufficient distance along said proximal portion such that said source lumen tubes extend outside a body when said movable surface portion is positioned for brachytherapy in a surgical cavity and the source lumen tubes define a curved configuration within the surgical cavity, the source lumen tubes defining respective source lumens; and a source of radiation suitable for insertion into the source lumens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A brachytherapy device comprising:
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a proximal portion; a movable surface portion; structure associated with said movable surface portion for causing movement of the movable surface portion from a first position to a second position; at least one tube that defines at least one source lumen attached to said proximal portion and associated with, and located outside, the movable surface portion, said at least one tube extending a sufficient distance along said proximal portion such at said at least one source lumen extends outside a body when said movable surface portion is positioned for brachytherapy in said body; a source of radiation suitable for insertion into said at least one source lumen; and an outer sheath around the device to act as a barrier to limit tissue ingrowth and/or retain liquid inside the device, wherein the outer sheath is bio-absorbable. - View Dependent Claims (16)
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17. A device for use in brachytherapy comprising:
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a proximal portion; a plurality of source lumen tubes comprising proximal ends adjacent the proximal portion and distal ends coupled together, the source lumen tubes defining an expandable structure adjacent the distal ends thereof, the source lumen tubes defining source lumens that extend from the proximal portion to the distal ends of the source lumen tubes for receiving a source of radiation therein; an inner tube extending from the proximal portion to the distal ends of the source lumen tubes, the inner tube comprising a source lumen for receiving a source of radiation therein; an actuator operatively associated with the source lumen tubes for causing the proximal and distal ends of the source lumen tubes to move towards one another to direct the expandable structure from a first contracted position to a second expanded position; and a cap fixed to the distal ends of the source lumen tubes and a distal end of the inner tube. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification