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;
a plurality of source lumen tubes defining respective source lumens, said source lumen tubes being located around the elongate member, distal ends of the source lumen tubes coupled to the distal portion of the elongate member, the source lumen tubes extending a sufficient distance in a proximal direction such that said source lumen tubes extend outside a body when distal portions of said source lumen tubes are positioned in a body cavity for brachytherapy;
structure coupled to the distal ends of said source lumen tubes for positioning said distal portions of said source lumen tubes at different distances from the elongate member for brachytherapy by exerting a force in a proximal direction on the distal ends of said source lumen tubes, said structure including an actuator for actuating said structure, at least a portion of said actuator being located outside the body when said distal portions of said source lumen tubes are positioned in a body cavity for brachytherapy;
a ring, tube or manifold securing a portion of said source lumen tubes proximal to said distal portion around said elongate member; and
a source of radiation suitable for insertion into the source lumens.
6 Assignments
0 Petitions
Accused Products
Abstract
A brachytherapy device including an elongate member comprising a proximal portion and a distal portion. The device also includes a movable surface portion surrounding at least the distal portion of the elongate member and a plurality of source lumen tubes defining respective source lumens, the source lumen tubes being located around the elongate member, distal ends of the source lumen tubes coupled to the distal portion of the elongate member, the source lumen tubes extending a sufficient distance in a proximal direction such that the source lumen tubes extend outside a body when distal portions of the source lumen tubes are positioned in a body cavity for brachytherapy. The device also has structure coupled to the distal ends of the source lumen tubes for positioning the distal portions of the source lumen tubes at different distances from the elongate member for brachytherapy by exerting a force in a proximal direction on the distal ends of the source lumen tubes, the structure including an actuator for actuating the structure, at least a portion of the actuator being located outside the body when the distal portions of the source lumen tubes are positioned in a body cavity for brachytherapy. The device also includes a ring, tube or manifold securing a portion of the source lumen tubes proximal to the distal portion around the elongate member and a source of radiation suitable for insertion into the source lumens.
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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; a plurality of source lumen tubes defining respective source lumens, said source lumen tubes being located around the elongate member, distal ends of the source lumen tubes coupled to the distal portion of the elongate member, the source lumen tubes extending a sufficient distance in a proximal direction such that said source lumen tubes extend outside a body when distal portions of said source lumen tubes are positioned in a body cavity for brachytherapy; structure coupled to the distal ends of said source lumen tubes for positioning said distal portions of said source lumen tubes at different distances from the elongate member for brachytherapy by exerting a force in a proximal direction on the distal ends of said source lumen tubes, said structure including an actuator for actuating said structure, at least a portion of said actuator being located outside the body when said distal portions of said source lumen tubes are positioned in a body cavity for brachytherapy; a ring, tube or manifold securing a portion of said source lumen tubes proximal to said distal portion around said elongate member; and a source of radiation suitable for insertion into the source lumens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A brachytherapy device comprising:
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an elongate member comprising a proximal portion and a distal portion; a plurality of source lumen tubes defining respective source lumens, said source lumen tubes being located around the elongate member, distal ends of the source lumen tubes coupled to the distal portion of the elongate member, the source lumen tubes extending a sufficient distance in a proximal direction such that said source lumen tubes extend outside a body when distal portions of said source lumen tubes are positioned in a body cavity for brachytherapy; an actuator associated with the elongate member for positioning said distal portions of said source lumen tubes at different distances from the elongate member for brachytherapy, at least a portion of said actuator being located outside the body when said distal portions of said source lumen tubes are positioned in a body cavity for brachytherapy; a ring, tube or manifold securing a portion of said source lumen tubes proximal to said distal portion around said elongate member, said ring, tube or manifold being movable relative to said elongate member; a source of radiation suitable for insertion into the source lumens; and an outer sheath around a distal portion of the device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A device for use in brachytherapy comprising:
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a proximal portion; a plurality of source lumen tubes comprising distal ends coupled together and proximal ends, a distal portion of 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 ends of the source lumen tubes into the distal portion 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 defining a source lumen for receiving a source of radiation therein; a ring, tube or manifold securing a portion of said source lumen tubes proximal to said distal portion around said inner tube; an actuator operatively associated with the source lumen tubes for reducing a distance between the distal ends of the source lumen tubes and the ring, tube or manifold to direct the expandable structure from a first contracted position to a second expanded position; and a source of radiation suitable for insertion into the source lumens. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification