Interstitial brachytherapy apparatus and method for treatment of proliferative tissue diseases
DCFirst Claim
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1. An interstitial brachytherapy apparatus for delivering radioactive emissions to an internal body location comprising:
- (a) a catheter body member having a proximal end and distal end;
(b) an inner spatial volume disposed proximate to the distal end of the catheter body member;
(c) an outer spatial volume defined by an expandable surface element disposed proximate to the distal end of the body member in a surrounding relation to the inner spatial volume; and
(d) a radiation source disposed in the inner spatial volume and generating a three-dimensional isodose profile that is substantially similar in shape to the expandable surface element.
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Abstract
An interstitial brachytherapy apparatus for delivering radioactive emissions to an internal body location includes a catheter body member having a proximal end and distal end, an inner spatial volume disposed proximate to the distal end of the catheter body member, an outer spatial volume defined by an expandable surface element disposed proximate to the distal end of the body member in a surrounding relation to the inner spatial volume, and a radiation source disposed in the inner spatial volume.
240 Citations
36 Claims
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1. An interstitial brachytherapy apparatus for delivering radioactive emissions to an internal body location comprising:
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(a) a catheter body member having a proximal end and distal end;
(b) an inner spatial volume disposed proximate to the distal end of the catheter body member;
(c) an outer spatial volume defined by an expandable surface element disposed proximate to the distal end of the body member in a surrounding relation to the inner spatial volume; and
(d) a radiation source disposed in the inner spatial volume and generating a three-dimensional isodose profile that is substantially similar in shape to the expandable surface element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for treating a proliferating tissue disease using interstitial brachytherapy at an internal body location comprising:
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(a) surgically creating access to the proliferating tissue in a patient;
(b) surgically resecting at least a portion of the proliferating tissue to create a resection cavity within body tissue;
(c) providing an interstitial brachytherapy apparatus for delivering radioactive emissions comprising;
(i) a catheter body member having a proximal end and distal end;
(ii) an inner spatial volume disposed proximate to the distal end of the catheter body member;
(iii) an outer spatial volume defined by an expandable surface element disposed proximate to the distal end of the body member in a surrounding relation to the inner spatial volume; and
(iv) a radiation source disposed in the inner spatial volume and generating a three-dimensional isodose profile that is substantially similar in shape to the expandable surface element;
(d) intraoperatively placing the interstitial brachytherapy apparatus into the resection cavity until a prescribed absorbed dose has been delivered to tissue surrounding the apparatus; and
(e) removing the interstitial brachytherapy apparatus. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for treating a proliferating tissue disease using interstitial brachytherapy at an internal body location comprising:
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(a) surgically creating access to the proliferating tissue in a patient;
(b) surgically resecting at least a portion of the proliferating tissue to create a resection cavity within body tissue;
(c) providing an interstitial brachytherapy apparatus for delivering radioactive emissions comprising;
(i) a catheter body member having a proximal end and distal end;
(ii) an inner spatial volume disposed proximate to the distal end of the catheter body member;
(iii) an outer spatial volume defined by an expandable surface element disposed proximate to the distal end of the body member in a surrounding relation to the inner spatial volume; and
(iv) a radiation source disposed in the inner spatial volume;
(d) intraoperatively placing the interstitial brachytherapy apparatus into the resection cavity;
(e) configuring the inner and outer spatial volumes to provide a minimum prescribed absorbed dose for delivering therapeutic effects to a target tissue, the target tissue being defined between the outer spatial volume expandable surface and a minimum distance outward from the outer spatial volume expandable surface, the apparatus providing a controlled dose at the outer spatial volume expandable surface to reduce or prevent necrosis in healthy tissue proximate to the expandable surface; and
(f) removing the interstitial brachytherapy apparatus. - View Dependent Claims (33)
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34. A method for treating a proliferating tissue disease using interstitial brachytherapy at an internal body location comprising:
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(a) surgically creating access to the proliferating tissue in a patient;
(b) surgically resecting at least a portion of the proliferating tissue to create a resection cavity within body tissue;
(c) providing an interstitial brachytherapy apparatus for delivering radioactive emissions comprising;
(i) a catheter body member having a proximal end and distal end;
(ii) an inner spatial volume disposed proximate to the distal end of the catheter body member;
(iii) an outer spatial volume defined by an expandable surface element disposed proximate to the distal end of the body member in a surrounding relation to the inner spatial volume; and
(iv) a radiation source disposed in the inner spatial volume;
(d) intraoperatively placing the interstitial brachytherapy apparatus into the resection cavity;
(e) adapting the expandable surface element to contact tissue surrounding the resection cavity to conform the tissue to the desired shape of the expandable surface element;
(f) delivering a prescribed absorbed dose to tissue surrounding the apparatus; and
(g) removing the interstitial brachytherapy apparatus. - View Dependent Claims (35)
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36. An interstitial brachytherapy apparatus for delivering radioactive emissions to an internal body location comprising:
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(a) a catheter body member having a proximal end and distal end;
(b) an inner spatial volume disposed proximate to the distal end of the catheter body member;
(c) an outer spatial volume defined by an expandable surface element disposed proximate to the distal end of the body member in a surrounding relation to the inner spatial volume; and
(d) a radiation source disposed in the inner spatial volume;
wherein the inner and outer spatial volumes are configured to provide a minimum prescribed absorbed dose for delivering therapeutic effects to a target tissue, the target tissue being defined between the outer spatial volume expandable surface and a minimum distance outward from the outer spatial volume expandable surface, the apparatus providing a controlled dose at the outer spatial volume expandable surface to reduce or prevent necrosis in healthy tissue proximate to the expandable surface.
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Specification