EP0359489A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Everting balloon catheter with anchor annulus and balloon for same
Assignee: Baxter International Inc
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Filing: 1989-09-08
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Granted: —
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Expires: 2009-09-08
Abstract
Abstract Disclosed is an everting thru-lumen balloon catheter (1) having an outer tubular unit (2) defining a central axis and an outer lumen (10), which unit also has a distal (28) and proximal tip and an interior and exterior surface. Disposed within the outer unit is a movable inner tube (6) coaxial with the outer unit and having a distal and proximal tip. An expandable tubular balloon (36) having a first and second end is attached at its first end to the distal tip of the inner tube, attached at its second end to the exterior surface of the outer unit spaced about a centimeter from the distal tip (28), and made from a material sufficiciently pliable to inflate at about 2 atmospheres pressure and sufficiently strong to withstand about 10 to about 12 atmospheres of pressure so that upon inflation of the balloon through the outer lumen, expansion of the balloon occurs radially with respect to the axis of the outer unit. The balloon is preferably made of a cross-linked copolymer of vinyl acetate and polyethylene having about 18 percent vinyl acetate monomer units. Also disclosed s a catheter balloon of the above composition and a composition for such balloons.
Inventors
- 👤 Steven Robert Bacich
- 👤 Albert K. Chin
- 👤 Guy Russell Lowery
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 09:03
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1006; A61M2025/1043; A61M2025/1065
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
119 words
Balloon apparatus for accessing and anchoring in a circumscribed area comprising: an outer tubular unit defining a central axis and an outer lumen, and having a distal and proximal tip and an interior and exterior surface; a movable inner tube coaxial with the outer unit and having a distal and proximal tip; an expandable tubular balloon having a first and second end, attached at its first end to the distal tip of the inner tube, and at its second end to the exterior surface of the outer unit spaced from the distal tip so that upon inflation of the balloon through the outer lumen, expansion of the balloon occurs radially with respect to the axis of the outer unit.
Claim 2
Dependent Claim
119 words
Balloon apparatus for accessing and anchoring in a circumscribed area comprising: an outer tubular unit defining a central axis and an outer lumen, and having a distal and proximal tip and an interior and exterior surface; a movable inner tube coaxial with the outer unit and having a distal and proximal tip; an expandable tubular balloon having a first and second end, attached at its first end to the distal tip of the inner tube, and at its second end to the exterior surface of the outer unit spaced from the distal tip so that upon inflation of the balloon through the outer lumen, expansion of the balloon occurs radially with respect to the axis of the outer unit.
Claim 3
Dependent Claim
27 words
Apparatus according to claim 1 and wherein the balloon is spaced from the distal tip of the outer unit by about one-half centimeter to about 3 centimeters.
Claim 4
Dependent Claim
23 words
Apparatus according to claim 2 and wherein the balloon is spaced from the distal tip of the outer unit by about 1 centimeter.
Claim 5
Dependent Claim
37 words
Apparatus according to claim 1 and wherein the balloon is attached to the outer unit in a recession so that the diameter of the outer unit is substantially the same at the point of attachment as elsewhere.
Claim 6
Dependent Claim
37 words
Apparatus according to claim 1 and wherein the balloon is comprised of a material sufficiently pliable to inflate at pressures lower than about 3 atmospheres, yet sufficiently strong to withstand pressures of more than about 8 atmospheres.
Claim 7
Dependent Claim
33 words
Apparatus according to claim 5 and wherein the material is sufficiently pliable to inflate at pressures of about 2 atmospheres, yet sufficiently strong to withstand pressures of about 10 to about 12 atmospheres.
Claim 8
Dependent Claim
28 words
Apparatus according to claim 6 and wherein the material is a cross-linked copolymer of vinyl acetate and polyolefins having about 1 to 51 percent vinyl acetate monomer units.
Claim 9
Dependent Claim
27 words
Apparatus according to claim 7 and wherein the material has about 10 to 30 percent of vinyl acetate monomer units and the polyolefins consist essentially of polyethylene.
Claim 10
Dependent Claim
18 words
Apparatus according to claim 8 and wherein the material has about 18 percent of vinyl acetate monomer units.
Claim 11
Dependent Claim
29 words
A catheter balloon comprised of a sufficiently pliable material to inflate at pressures under about 3 atmospheres and sufficiently strong to withstand pressures of about 8 atmospheres or more.
Claim 12
Dependent Claim
29 words
A catheter balloon comprised of a sufficiently pliable material to inflate at pressures under about 3 atmospheres and sufficiently strong to withstand pressures of about 8 atmospheres or more.
Claim 13
Dependent Claim
37 words
A catheter balloon according to claim 10 and wherein the material inflates at pressures of about 2 atmospheres and withstands pressures of about 10 to about 12 atmospheres so that it can be used for dilatation catheters.
Claim 14
Dependent Claim
31 words
A catheter balloon according to claim 11 and wherein the material is a cross-linked copolymer of vinyl acetate and polyolefins having about 1 to about 51 percent vinyl acetate monomer units.
Claim 15
Dependent Claim
29 words
A catheter balloon according to claim 12 and wherein the copolymer has about 10 to about 30 percent vinyl acetate monomer units and the polyolefins consist essentially of polyethylene.
Claim 16
Dependent Claim
19 words
A catheter balloon according to claim 13 and wherein the copolymer has about 18 percent vinyl acetate monomer units.
Claim 17
Dependent Claim
28 words
A composition for a catheter balloon consisting essentially of a cross-linked copolymer of vinyl acetate and polyolefins having about 1 to about 51 percent vinyl acetate monomer units.
Claim 18
Dependent Claim
28 words
A composition for a catheter balloon consisting essentially of a cross-linked copolymer of vinyl acetate and polyolefins having about 1 to about 51 percent vinyl acetate monomer units.
Claim 19
Dependent Claim
29 words
A composition for a catheter balloon according to claim 15 wherein the copolymer has about 10 to about 30 percent vinyl acetate monomer units and the polyolefins are polyethylene.
Claim 20
Dependent Claim
21 words
A composition for a catheter balloon according to claim 16 wherein the copolymer has about 18 percent vinyl acetate monomer units.
Claim 21
Dependent Claim
146 words
An everting thru-lumen balloon catheter comprising: an outer tubular unit defining a central axis and an outer lumen, and having a distal and proximal tip and an interior and exterior surface; a movable inner tube coaxial with the outer unit and having a distal and proximal tip; an expandable tubular balloon having a first and second end, said balloon attached at its first end to the distal tip of the inner tube, attached at its second end to the exterior surface of the outer unit spaced about a centimeter from the distal tip, and made from a material sufficiciently pliable to inflate at about 2 atmospheres pressure and sufficiently strong to withstand about 10 to about 12 atmospheres of pressure so that upon inflation of the balloon through the outer lumen, expansion of the balloon occurs radially with respect to the axis of the outer unit.
Claim 22
Dependent Claim
146 words
An everting thru-lumen balloon catheter comprising: an outer tubular unit defining a central axis and an outer lumen, and having a distal and proximal tip and an interior and exterior surface; a movable inner tube coaxial with the outer unit and having a distal and proximal tip; an expandable tubular balloon having a first and second end, said balloon attached at its first end to the distal tip of the inner tube, attached at its second end to the exterior surface of the outer unit spaced about a centimeter from the distal tip, and made from a material sufficiciently pliable to inflate at about 2 atmospheres pressure and sufficiently strong to withstand about 10 to about 12 atmospheres of pressure so that upon inflation of the balloon through the outer lumen, expansion of the balloon occurs radially with respect to the axis of the outer unit.
Claim 23
Dependent Claim
27 words
A catheter according to claim 18 and wherein the material is a cross-linked copolymer of vinyl acetate and polyethylene having about 18 percent vinyl acetate monomer units.
References Cited (Backward Citations)
No citation records indexed.
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