Radiation catheters optimized for stepped delivery technique
First Claim
Patent Images
1. A radiation catheter for treating a luminal structure of a patient, comprising:
- a catheter having at least one centrally disposed lumen adapted to center radioactive material in the luminal structure of the patient said lumen being open throughout its interior to receive a radioactive source;
a source of radioactive material; and
at least two balloon segments located at different longitudinal extents of the catheter, said segments being separably inflatable and deflatable.
1 Assignment
0 Petitions
Accused Products
Abstract
A radiation catheter for intraluminal treatment of a patient has a plurality of separably inflatable and deflatable balloon segments located along the length of the catheter, and a radiation source within a lumen of the catheter. As the radiation source is moved, one or more balloon segments closest to the source is inflated with the remainder deflated thereby allowing blood to perfuse in areas where inflation of the segments is not needed to effect centering of the source in the luminal structure.
71 Citations
19 Claims
-
1. A radiation catheter for treating a luminal structure of a patient, comprising:
-
a catheter having at least one centrally disposed lumen adapted to center radioactive material in the luminal structure of the patient said lumen being open throughout its interior to receive a radioactive source;
a source of radioactive material; and
at least two balloon segments located at different longitudinal extents of the catheter, said segments being separably inflatable and deflatable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A radiation catheter for treating a luminal structure of a patient, comprising:
-
a catheter having at least one centrally disposed lumen, said lumen being open throughout its interior to receive a radioactive source; and
at least two balloon segments located at different longitudinal extents of the catheter, said segments being separably inflatable and deflatable; and
a radiation source movable within the lumen of the catheter, whereby the balloon segment nearest the source is inflatable to center the radiation source radially in the luminal structure, and deflatable when not needed to center the radiation source. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
-
Specification