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US RE39,157 E1Granted
Apparatus for restenosis treatment
AssigneeCalmedica, LLC
InventorRobert L. Hess
Life of this patent
Estimating the term…
Abstract
Method and apparatus for treatment and post-treatment of the stenosed region of an artery after reduction of the region by angioplasty or other means by applying a radioactive dose to said reduced region of the artery by positioning a radioactive dose to the reduced region is disclosed.
Claims41
Apparatus for post-treatment of stenosed region of an artery that has been reduced by angioplasty or other means comprising:
- radioactive dose means for emitting radiation;
- and
- positioning means operatively connected to said dose means for advancing said dose means and positioning said dose means within the stenosed region of an artery that has been reduced by angioplasty or other means, said positioning means also being operatively connected to said dose means for withdrawing said dose means from the artery, the positioning means further including an angioplasty balloon, said radioactive dose means being connected to said balloon and moveable into contact with the stenosed region by expansion of said balloon.
Apparatus for post-treatment of stenosed region of an artery that has been reduced by angioplasty or other means comprising:
- radioactive dose means for emitting radiation;
- and
- positioning means operatively connected to said dose means for advancing said dose means and positioning said dose means within the stenosed region of an artery that has been reduced by angioplasty or other means, said positioning means also being operatively connected to said dose means for withdrawing said dose means from the artery, the positioning means including a retractable sheath which may be removably positioned over said radioactive dose means and the dose means being located in a housing having a cut-out in a sidewall thereof, the dose means being exposed to the stenosed region by moving the sheath from a first position wherein the cut-out is covered by the sheath to a second position wherein the cut-out is not covered by the sheath.
Apparatus for post-treatment of stenosed region of an artery that has been reduced by angioplasty or other means comprising:
- radioactive dose means for emitting radiation;
- and
- positioning means operatively connected to said dose means for advancing said dose means and positioning said dose means within the stenosed region of an artery that has been reduced by angioplasty or other means, said positioning means also being operatively connected to said dose means for withdrawing said dose means from the artery, the positioning means including a retractable remotely activated cover which may be removably positioned over said radioactive dose means and the dose means being located in a housing having an opening therein, the dose means being exposed to the stenosed region by moving the remotely activated cover from a first position wherein the opening is covered by the remotely activated cover to a second position wherein the opening is not covered by the remotely activated cover.
Apparatus for post-treatment of a stenosed region of an artery that has been reduced by angioplasty or other procedure comprising:
- a radioactive dose for emitting radiation;
- a catheter;
- and
- a positioner providing slidable motion of the radioactive dose within the catheter, the positioner arranged for advancing said dose within the stenosed region of an artery that has been reduced by angioplasty or other procedure, said positioner also being operatively connected to said dose for positioning the dose between a first position and a second position, wherein in the first position the dose is positioned within the artery in a non-deployed configuration and a second position wherein the dose is in a deployed configuration and exposed through a window in the catheter for treating at least a portion of the stenosed region of the artery, said positioner being operatively connected to said dose for withdrawing said dose from the artery after said radioactive dose is exposed to the stenosed region for a period of time sufficient to inhibit restenosis of the stenosed region.
1 more element
Apparatus for post treatment of a stenosed region of an artery that has been reduced by angioplasty or other procedure comprising:
- a radiation source;
- and
- a catheter having at least one lumen adapted to deliver said radiation source within the stenosed region of an artery that has been reduced by angioplasty or other procedure, said catheter also being adapted to at least partially reposition relative to the radiation source for treatment when positioned within the stenosed region of an artery, the catheter being adapted to at least partially reposition to withdraw said radiation source from the artery after said radiation source is exposed to the stenosed region for a period of time sufficient to inhibit restenosis of the stenosed region.
Apparatus for post-treatment of a stenosed region of an artery that has been reduced by angioplasty or other procedure comprising:
- a radioactive dose for emitting radiation;
- a catheter movable with respect to the dose;
- and
- a positioner configured to advance said catheter and dose within of an artery that has been reduced by angioplasty or other procedure, said positioner also configured to position the catheter and dose between a first position and a second position, wherein in the first position the dose is positioned within the artery in a non-deployed configuration and a second position wherein the dose is in a deployed configuration and exposed through a window in the catheter for treating at least a portion of the stenosed region of the artery, said positioner configured to withdraw said catheter and dose from the artery after said radioactive dose is exposed to the stenosed region for a period of time sufficient to inhibit restenosis of the stenosed region.
1 more element
Apparatus for post-treatment of a stenosed region of an artery that has been reduced by angioplasty or other procedure comprising:
- a radioactive dose for emitting radiation, wherein the radioactive dose is incorporated into a liquid for delivery;
- a catheter;
- and
- a positioner providing slidable motion of the radioactive dose within the catheter, the positioner arranged for advancing said dose within the stenosed region of an artery that has been reduced by angioplasty or other procedure, said positioner also being operatively connected to said dose for positioning the dose between a first position and a second position, wherein in the first position the dose is positioned within the artery in a non-deployed configuration and a second position wherein the dose in in a deployed configuration for treating at least a portion of the stenosed region of the artery, said positioner being operatively connected to said dose for withdrawing said dose from the artery after said radioactive dose is exposed to the stenosed region for a period of time sufficient to inhibit restenosis of the stenosed region.
1 more element
Apparatus for post-treatment of a stenosed region of an artery that has been reduced by angioplasty or other procedure comprising:
- a radioactive dose for emitting radiation, wherein the radioactive dose is incorporated into a liquid for delivery;
- a catheter movable with respect to the dose;
- and
- a positioner configured to advance said catheter and dose within of an artery that has been reduced by angioplasty or other procedure, said positioner also configured to position the catheter and dose between a first position and a second position, wherein in the first position the dose is positioned within the artery in a non-deployed configuration and a second position wherein the dose is in a deployed configuration for treating at least a portion of the stenosed region of the artery, said positioner configured to withdraw said catheter and dose from the artery after said radioactive dose means is exposed to the stenosed region for a period of time sufficient to inhibit restenosis of the stenosed region.
1 more element
Apparatus for post-treatment of a stenosed region of an artery that has been reduced by angioplasty or other procedure comprising:
- a radioactive dose for emitting radiation;
- a catheter for delivering the radioactive dose to and removing the radioactive dose from the stenosed region of an artery that has been reduced by angioplasty or other procedure;
- and
- a positioner configured to move the catheter and the radioactive dose with respect to one another to move the radioactive dose from a non-deployed and shielded position to a deployed and unshielded position, wherein the dose is exposed through a window in the catheter for a period of time sufficient to inhibit restenosis of the stenosed region.
1 more element
Apparatus for post-treatment of a stenosed region of an artery that has been reduced by angioplasty or other procedure comprising:
- a radioactive dose for emitting radiation, wherein the radioactive dose is incorporated into a liquid for delivery;
- a catheter for delivering the radioactive dose to and removing the radioactive dose from the stenosed region of an artery that has been reduced by angioplasty or other procedure;
- and
- a positioner configured to move the catheter and the radioactive dose with respect to one another to move the radioactive dose from a non-deployed and shielded position to a deployed and unshielded position for a period of time sufficient to inhibit restenosis of the stenosed region.
1 more element
Apparatus for treatment of a lesion site in an artery with radiation comprising:
- a radioactive dose for emitting radiation, wherein the radioactive dose is incorporated into a liquid for delivery;
- a catheter for delivering the radioactive dose to and removing the radioactive dose from the lesion site in the artery that has been reduced by angioplasty or other procedure;
- and
- a positioner configured to move the catheter and the radioactive dose with respect to one another to move the radioactive dose from a non-deployed and shielded position to a deployed and unshielded position for a period of time sufficient to inhibit restenosis of the lesion site.
1 more element
Dependencies are inferred from the claim text.