Balloon catheter for launching drug delivery device
OwnerLawrence J. Gerrans, Erhan H. Gundayinventors
Life of this patent
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Abstract
A method and apparatus for delivering a therapeutic and/or diagnostic agent to tissue within a bodily cavity is provided herein. The apparatus may include a catheter assembly including a catheter and a delivery balloon having an expandable material disposed thereon, wherein the expandable material may be an absorbent at least partially charged with a therapeutic and/or diagnostic agent. The method may include the step of delivering a therapeutic and/or diagnostic agent to tissue by inflating the delivery balloon by supplying fluid thereto until the expandable material adopts an expanded state in which the expandable material contacts the tissue and is implanted in a bodily cavity.
Claims47
A method of delivery of a therapeutic and/or diagnostic agent to tissue, comprising the steps of:
- inserting a catheter assembly into a bodily cavity, the catheter assembly comprising
- a catheter and a delivery balloon;
- said delivery balloon having an expandable material disposed thereon;
- said expandable material comprising an absorbent at least partially charged with a therapeutic and/or diagnostic agent;
- and
- delivering said therapeutic and/or diagnostic agent to tissue by inflating said delivery balloon by supplying fluid thereto until said expandable material adopts an expanded state in which the expandable material contacts tissue and is implanted in the bodily cavity.
The method of claim 4 further comprising the step of recharging at least a portion of said implanted expandable material with a therapeutic and/or diagnostic agent after at least some of said agent has been absorbed by the tissue.
A balloon catheter for supplying a therapeutic and/or diagnostic agent to tissue, comprising:
- a catheter having a distal end and a proximal end;
- a delivery balloon positioned near the distal end of said catheter, said delivery balloon having an expandable material disposed thereon;
- said expandable material being at least partially charged with a therapeutic and/or diagnostic agent;
- a proximal balloon positioned proximal of said delivery balloon and a distal balloon positioned distal of said delivery balloon;
- a first lumen in said catheter through which fluid is supplied to said delivery balloon for inflating said delivery balloon until said expandable material adopts an expanded state against the tissue within a bodily cavity;
- and
- at least one additional lumen through which fluid is supplied to said proximal and distal balloons for inflating said proximal and distal balloons;
- said proximal and distal balloons, when inflated, creating a chamber between the proximal balloon and the distal balloon.
A method of delivery of a therapeutic and/or diagnostic agent to tissue, comprising the steps of:
- inserting a catheter assembly into a bodily cavity, the catheter assembly comprising
- a catheter and a delivery balloon;
- said delivery balloon having an expandable material disposed thereon;
- said expandable material being at least partially charged with a therapeutic and/or diagnostic agent;
- and
- delivering said therapeutic and/or diagnostic agent to tissue in a pulsing manner by inflating said delivery balloon until said expandable material contacts tissue in the bodily cavity and then deflating said delivery balloon for a desired number of cycles.
A balloon catheter for supplying a therapeutic and/or diagnostic agent to tissue, comprising:
- a catheter having a distal end and a proximal end;
- a delivery balloon positioned near the distal end of said catheter, said delivery balloon having an expandable material disposed on at least a portion thereof;
- said expandable material comprising said absorbent being at least partially charged with a therapeutic and/or diagnostic agent;
- and
- a first lumen in said catheter through which fluid is supplied to said delivery balloon for inflating said delivery balloon until said expandable material adopts an expanded state against the tissue within a bodily cavity.
A method of delivery of a therapeutic and/or diagnostic agent to tissue, comprising the steps of:
- inserting a catheter assembly into a bodily cavity, the catheter assembly comprising
- a catheter and a delivery balloon;
- said delivery balloon having an expandable material disposed thereon;
- said expandable material being at least partially charged with a therapeutic and/or diagnostic agent;
- a proximal balloon positioned proximal of said delivery balloon and a distal balloon positioned distal of said delivery balloon;
- and
- at least one fluid source that inflates said delivery, proximal and distal balloons by supplying fluid thereto;
- inflating said proximal and distal balloons by supplying fluid thereto to create a chamber between the proximal balloon and the distal balloon;
- and
- delivering said therapeutic and/or diagnostic agent to tissue by inflating said delivery balloon by supplying fluid thereto until said expandable material contacts tissue and is implanted in the bodily cavity.
Dependencies are inferred from the claim text.