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US5554119A Expired / Lapsed US ⏱️ 0.0 years remaining

Drug delivery catheter with manifold

Assignee: Boston Scientific Scimed Inc
•
Filing: 1994-01-27
•
Granted: 1996-09-10
•
Expires: 2014-01-27
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Abstract

Abstract A drug delivery catheter which may be inserted into a vessel, such as a blood vessel is disclosed. The drug delivery catheter comprises any elongated tubular member which has a proximal end and a distal end. A drug lumen which provides a communication path for fluid is provided in the elongated tubular member for delivering a fluid, such as the drug to be administered. An inflatable balloon assembly is provided at the distal end of the elongated tubular member. The balloon assembly includes apertures which communicate with the drug lumen. The balloon assembly comprises a tubular balloon which is helically wound through the elongated tubular member and a sheath. The sheath is attached to the helically wound tubular balloon such that when the balloon member is uninflated, the first fluid in the vessel flows around the balloon assembly and such that when the balloon member is inflated, sections of the helically wound balloon contact the vessel wall to form a containment pocket between the vessel wall, the contacting sections of the balloon and the sheath. The apertures are provided in the containment pocket. An inflatable lumen is defined through the interior of the helically wound balloon and the sheath to allow perfusion of the first fluid.

Inventors

  • 👤 Kent D. Harrison
  • 👤 Gary L. Hendrickson
  • 👤 Thomas J. Holman
  • 👤 Daniel M. Lafontaine
  • 👤 Matthew J. Miller
  • 👤 David B. Robinson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 13:20
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1002; A61M16/00; A61M16/04; A61M16/0402; A61M16/0431; A61M16/0434; A61M16/0454; A61M16/0459; A61M16/0475; A61M16/0477; A61M16/0481; A61M2025/1043; A61M2025/105; A61M2025/1052; A61M2025/1072; A61M2025/1097

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 239 words
A drug delivery catheter for insertion into a vessel which contains a first flowing fluid, the drug delivery catheter comprising: an elongated tubular member having a proximal end and a distal end; a drug lumen in fluid communication with the distal end of the tubular member for delivering a second fluid; an inflatable balloon assembly disposed at the distal end of the tubular member, the balloon assembly including an inflatable balloon member having an uninflated state and an inflated state; aperture means for delivering the second fluid from said drug lumen to said vessel; the balloon assembly, comprising a tubular balloon helically wound through the elongated tubular member creating balloon members and a sheath attached between the balloon members such that (1) when the balloon members are in an uninflated state, the first fluid in the vessel may flow around the balloon assembly, and (2) when the balloon members are in an inflated state, sections of the balloon members contact the vessel wall defining at least one containment pocket for containing the second fluid between the vessel wall, the contacting sections of the balloon assembly and the sheath, the aperture means being disposed in the containment pocket and an inflatable lumen being defined through the interior of the balloon members and sheath to allow the first fluid to flow through the balloon members; and an inflation lumen in fluid communication with the balloon members for inflating the balloon members.
Claim 2
Dependent Claim 239 words
A drug delivery catheter for insertion into a vessel which contains a first flowing fluid, the drug delivery catheter comprising: an elongated tubular member having a proximal end and a distal end; a drug lumen in fluid communication with the distal end of the tubular member for delivering a second fluid; an inflatable balloon assembly disposed at the distal end of the tubular member, the balloon assembly including an inflatable balloon member having an uninflated state and an inflated state; aperture means for delivering the second fluid from said drug lumen to said vessel; the balloon assembly, comprising a tubular balloon helically wound through the elongated tubular member creating balloon members and a sheath attached between the balloon members such that (1) when the balloon members are in an uninflated state, the first fluid in the vessel may flow around the balloon assembly, and (2) when the balloon members are in an inflated state, sections of the balloon members contact the vessel wall defining at least one containment pocket for containing the second fluid between the vessel wall, the contacting sections of the balloon assembly and the sheath, the aperture means being disposed in the containment pocket and an inflatable lumen being defined through the interior of the balloon members and sheath to allow the first fluid to flow through the balloon members; and an inflation lumen in fluid communication with the balloon members for inflating the balloon members.
Claim 3
Dependent Claim 26 words
The drug delivery catheter of claim 1 wherein the balloon member has a diameter of between approximately 2.0 mm and 6.0 mm in the inflated state.
Claim 4
Dependent Claim 20 words
The drug delivery catheter of claim 2 wherein the inflatable lumen has an internal diameter of at least 0.035 inches.
Claim 5
Dependent Claim 20 words
The drug delivery catheter of claim 1 wherein the sheath is formed around the outer periphery of the balloon member.
Claim 6
Dependent Claim 20 words
The drug delivery catheter of claim 1 wherein the inflatable lumen has an internal diameter of at least 0.035 inches.
Claim 7
Dependent Claim 21 words
The drug delivery catheter of claim 1 wherein the apertures in the balloon assembly comprise slits in the elongated tubular member.
Claim 8
Dependent Claim 33 words
The drug deliver catheter of claim 1 wherein the aperture is located in the elongated tubular member such that fluid flowing from the drug lumen and through the aperture enters the containment pockets.
Claim 9
Dependent Claim 390 words
A drug delivery catheter for insertion into a vessel which contains a first flowing fluid, the drug delivery catheter comprising: an elongated tubular member having a proximal end and a distal end; a drug lumen in fluid communication with the distal end of the tubular member for delivering a second fluid; a first inflatable balloon assembly disposed at the distal end of the tubular member, the balloon assembly including a tubular balloon helically wound through the elongated tubular member forming a first set of inflatable balloon members having an uninflated state and an inflated state; aperture means for delivering the second fluid from said drug lumen to said vessel; a second inflatable balloon assembly disposed proximal of the first balloon assembly and separated therefrom by a space, the second balloon assembly including a tubular balloon helically Wound through the elongated tubular member forming a second set of inflatable galloon members having an uninflated state and an inflated state; aperture means for delivering the second fluid from said drug lumen to said vessel; each of first and second balloon assemblies comprising a sheath attached between each of the balloon members in that respective balloon assembly such that (1) when the first and second sets of balloon members are in an uninflated state, the first fluid in the vessel may flow around the first and second balloon assemblies, and (2) when the first and second sets of balloon members are in an inflated state, sections of the first set of balloon members contact the vessel wall defining a first containment pocket while containing the second fluid between the vessel wall and within the contacting sections of the first balloon assembly, sections of the second set of balloon members contact the vessel wall defining a second containment pocket for containing the second fluid between the vessel wall, the contacting sections of the second balloon assembly and the second sheath, the aperture means being disposed in first and second containment pockets, an inflatable lumen being defined through the interior of the balloon member and sheath of each balloon assembly to allow the first fluid to flow through the balloon member, and the space between the first and second balloon assemblies defining a side opening in the inflatable lumen; and an inflation lumen in fluid communication with the balloon members for inflating the balloon members.
Claim 10
Dependent Claim 390 words
A drug delivery catheter for insertion into a vessel which contains a first flowing fluid, the drug delivery catheter comprising: an elongated tubular member having a proximal end and a distal end; a drug lumen in fluid communication with the distal end of the tubular member for delivering a second fluid; a first inflatable balloon assembly disposed at the distal end of the tubular member, the balloon assembly including a tubular balloon helically wound through the elongated tubular member forming a first set of inflatable balloon members having an uninflated state and an inflated state; aperture means for delivering the second fluid from said drug lumen to said vessel; a second inflatable balloon assembly disposed proximal of the first balloon assembly and separated therefrom by a space, the second balloon assembly including a tubular balloon helically Wound through the elongated tubular member forming a second set of inflatable galloon members having an uninflated state and an inflated state; aperture means for delivering the second fluid from said drug lumen to said vessel; each of first and second balloon assemblies comprising a sheath attached between each of the balloon members in that respective balloon assembly such that (1) when the first and second sets of balloon members are in an uninflated state, the first fluid in the vessel may flow around the first and second balloon assemblies, and (2) when the first and second sets of balloon members are in an inflated state, sections of the first set of balloon members contact the vessel wall defining a first containment pocket while containing the second fluid between the vessel wall and within the contacting sections of the first balloon assembly, sections of the second set of balloon members contact the vessel wall defining a second containment pocket for containing the second fluid between the vessel wall, the contacting sections of the second balloon assembly and the second sheath, the aperture means being disposed in first and second containment pockets, an inflatable lumen being defined through the interior of the balloon member and sheath of each balloon assembly to allow the first fluid to flow through the balloon member, and the space between the first and second balloon assemblies defining a side opening in the inflatable lumen; and an inflation lumen in fluid communication with the balloon members for inflating the balloon members.
Claim 11
Dependent Claim 40 words
The drug delivery catheter of claim 8 comprising a first market coil disposed under the first set of balloons and a second marker coil disposed under the second set of balloons, said marker coils bonded to the elongated tubular member.
Claim 12
Dependent Claim 28 words
The drug delivery catheter of claim 8 wherein the first set and second set of balloons comprise a single tubular balloon helically wound through the elongated tubular member.
Claim 13
Dependent Claim 20 words
The drug delivery catheter of claim 8 wherein the sheath is formed around the outer periphery of the balloon member.
Claim 14
Dependent Claim 20 words
The drug delivery catheter of claim 8 wherein the inflatable lumen has an internal diameter of at least 0.035 inches.
Claim 15
Dependent Claim 33 words
The drug delivery catheter of claim 8 wherein the apertures are located in the elongated tubular member such that fluid flowing from the drug lumen and through the aperture enters the containment pockets.
Claim 16
Dependent Claim 21 words
The drug delivery catheter of claim 8 wherein the apertures in the balloon assembly comprise slits in the elongated tubular member.
Claim 17
Dependent Claim 26 words
The drug delivery catheter of claim 8 wherein the balloon member has a diameter of between approximately 2.0 mm and 6.0 mm in the inflated state.
Claim 18
Dependent Claim 20 words
The drug delivery catheter of claim 15 wherein the inflatable lumen has an internal diameter of at least 0.035 inches.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-09-10 2000-03-11 2000-09-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-09-10 2004-03-11 2004-09-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-09-10 2008-03-11 2008-09-10 $7700.00 Window Closed / Lapsed

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