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US 6,582,417 B1Granted
Methods and apparatuses for radiation treatment
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsMichelle N. Ledesma, Anthony J. Bradshaw, Richard T. Thornton, J. Eric Henckel
Life of this patent
Estimating the term…
Abstract
Methods and apparatuses for positioning a radiation source in vivo relative to radio-opaque markers on a catheter that delineate a therapeutic treatment length so that a therapeutic dose of radiation is delivered along the therapeutic treatment length.
Claims12
A radiation delivery catheter comprising:
- an elongate, tubular member having a lumen for receiving a radiation source;
- a helical balloon disposed around said elongate, tubular member;
- and
- proximal and distal markers attached to said elongate, tubular member,
- wherein said proximal and distal markers are spaced apart along said elongate, tubular member so as to define a therapeutic treatment length.
2 more elements
A radiation delivery catheter comprising:
- an elongate, tubular member having a dead-end lumen for receiving a radiation source;
- a proximal marker and a distal marker attached to said elongate, tubular member, wherein said proximal and distal markers are spaced apart along said elongate, tubular member so as to define a therapeutic treatment length, said distal marker being spaced a distance proximal to said dead-end lumen, said distance being at least the distal length of the radiation source in which a sub-therapeutic dose of radiation is delivered.
Dependencies are inferred from the claim text.