Minimally invasive medical device for providing a radiation treatment
First Claim
1. A minimally invasive medical device for providing a radiation treatment, comprising:
- an outer sheath having a distal end, a proximal end, and a passage extending longitudinally therein; and
an inner elongated member having an expandable distal portion and a proximal portion that is slidably disposed in said passage of said outer sheath, said proximal portion having a proximal end extending from said proximal end of said outer sheath and movable with respect to said proximal end of said outer sheath for extending said expandable distal portion from said distal end of said outer sheath, said expandable distal portion biased to an expanded condition when extended from said distal end of said outer sheath, said expandable distal portion also including a radiation source.
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0 Petitions
Accused Products
Abstract
A minimally invasive medical device (10, 23, 31, 40, 41, 46, 49) for providing a selected and controlled radiation dosage to the vascular system of a patient. The device includes an outer sheath (15) with an inner elongated member (55) slidably disposed in the passage (59) of the outer sheath. The inner elongated member has an expandable distal portion (11) of spring wires (12, 13) looped about a distal end 14 of the inner elongated member. The inner elongated member also includes a proximal portion (17) extending from the proximal end (58) of the outer sheath for extending and withdrawing the expandable distal portion from the distal end (56) of the outer sheath. The spring wires of the expandable distal portion include a radiation source (18) alloyed with or disposed around the spring wires. The inner elongated member also alternatively includes a catheter (60) with an inflatable balloon (38) forming the expandable distal portion thereof.
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Citations
17 Claims
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1. A minimally invasive medical device for providing a radiation treatment, comprising:
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an outer sheath having a distal end, a proximal end, and a passage extending longitudinally therein; and an inner elongated member having an expandable distal portion and a proximal portion that is slidably disposed in said passage of said outer sheath, said proximal portion having a proximal end extending from said proximal end of said outer sheath and movable with respect to said proximal end of said outer sheath for extending said expandable distal portion from said distal end of said outer sheath, said expandable distal portion biased to an expanded condition when extended from said distal end of said outer sheath, said expandable distal portion also including a radiation source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A minimally invasive medical device for providing a radiation treatment, comprising:
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an outer sheath having a distal end, a proximal end, and a passage extending longitudinally therein; a basket having a first spring wire and a second spring wire, said basket being positionable in said passage of said outer sheath, being in a collapsed condition when positioned in said passage of said outer sheath, and being in an expanded condition when extended from said distal end of said outer sheath; and a radiation source disposed about said spring wires. - View Dependent Claims (13, 14, 15, 16)
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17. A minimally invasive medical device for providing a radiation treatment, comprising:
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an outer polytetrafluoroethylene sheath having a distal end, a proximal end, and a passage extending longitudinally therein; a basket having a first stainless steel spring wire and a second stainless steel spring wire, said basket being positionable in said passage of said outer sheath, being in a collapsed condition when positioned in said outer sheath, and being in an expanded condition when extended from said distal end of said outer sheath, said first and said second stainless steel spring wires extending through and having a proximal end extending from said proximal end of said outer sheath, said proximal end of said first and said second stainless steel spring wires being movable for slidably positioning said basket in and out of said passage of said outer sheath; and an iridium material combined with said first and said second stainless steel spring wires to form a first and a second radioactive metal alloy spring wire.
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Specification