Balloon catheter
First Claim
1. A balloon catheter comprising:
- a first elongate polymeric tubular member having an outer surface, a proximal end, a distal end, a lumen extending between said distal and proximal ends, and a radially recessed region near the distal end;
a second elongate polymeric tubular member within the first elongate tubular member and having a working lumen and an outer surface defining an annular space between the first elongate tubular member and the outer surface of the second tubular member, said annular space being a fluid supply lumen; and
an inflatable member situated within said radially recessed region and not extending beyond the distal end of the first enlongate poloymeric tubular member, said inflatable member when deflated, providing said balloon catheter a substantially constant diameter commencing in a region proximally adjacent to the radially recessed region and continuing across the radially recessed region, and said inflatable member being fluid-connectable with said fluid supply lumen.
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Accused Products
Abstract
This is a balloon catheter having at least two lumens. One of the lumens is a large working lumen. The balloon catheter is especially useful as a guide catheter or micro catheter and may be used in a variety of therapeutic and diagnostic procedures. In particular, it has value in treating neurovascular embolic strokes in combination with other devices which are delivered to the stroke site through that working lumen. The remainder of the lumens typically are used to inflate and to deflate the balloon. The balloon or inflatable member be situated in a recess in the outer wall of the inventive catheter. Additionally, the distal end of the catheter past the balloon may be tapered. The catheter has a very low profile as compared to other catheters of the neurovascular balloon catheter genre. It may include other features such as variable stiffness along the axis of the device and anti-kinking components. The balloon may be compliant in nature. When intended for use in treating embolic stroke, the catheter may be a component of a kit including a foreign body or clot retriever. Further, amongst other procedures, the invention includes methods of temporarily blocking a vascular lumen, of removing neurovascular or peripheral emboli. Other procedures, where diagnosis or treatment is needed in a vascular space and a large working lumen is desired, are suitable procedures for the balloon catheter.
408 Citations
45 Claims
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1. A balloon catheter comprising:
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a first elongate polymeric tubular member having an outer surface, a proximal end, a distal end, a lumen extending between said distal and proximal ends, and a radially recessed region near the distal end;
a second elongate polymeric tubular member within the first elongate tubular member and having a working lumen and an outer surface defining an annular space between the first elongate tubular member and the outer surface of the second tubular member, said annular space being a fluid supply lumen; and
an inflatable member situated within said radially recessed region and not extending beyond the distal end of the first enlongate poloymeric tubular member, said inflatable member when deflated, providing said balloon catheter a substantially constant diameter commencing in a region proximally adjacent to the radially recessed region and continuing across the radially recessed region, and said inflatable member being fluid-connectable with said fluid supply lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 37, 38, 39)
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25. A balloon catheter comprising:
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a first elongate polymeric tubular member having an outer surface, a proximal end, a distal end, a lumen extending between said distal and proximal ends, and a radially recessed region near the distal end;
a second elongate polymeric tubular member within the first elongate tubular member having a working lumen, a proximal end, a distal end and an outer surface defining an annular space between the first elongate tubular member and the outer surface of the second tubular member, said annular space being a fluid supply lumen, said second elongate polymeric tubular member further comprising a reinforcement layer beginning at said proximal end and terminating a distance proximal to said distal end of said second tubular member wherein said distance is greater or equal to 10 cm or less than 3 cm; and
an inflatable member having a proximal portion mounted to said radially recessed region of said first tubular member and a distal portion mounted to said second elongate tubular member at a location distal to said distal end of said first elongate member, said inflatable member being fluid-connectable with said fluid supply lumen. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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32. A balloon catheter comprising:
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a first elongate polymeric tubular member having an outer surface, a proximal end, a distal end, a lumen extending between said distal and proximal ends, and a radially recessed region near the distal end;
a second elongate polymeric tubular member within the first elongate tubular member and having a working lumen, a proximal end, a distal end and an outer surface defining an annular space between the first elongate tubular member and the outer surface of the second tubular member, said annular space being a fluid supply lumen; and
an inflatable member having a proximal portion mounted to said radially recessed region of said first tubular member and a distal portion mounted to said second elongate tubular member at a location distal to said distal end of said first elongate member, said inflatable member being stretched when deflated and said inflatable member being fluid-connectable with said fluid supply lumen. - View Dependent Claims (33, 34, 35, 36)
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40. A balloon catheter comprising:
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a first elongate polymeric tubular member having an outer surface, a proximal end, a distal end, a lumen extending between said distal and proximal ends, and a radially recessed region near the distal end;
a second elongate polymeric tubular member within the first elongate tubular member and having a working lumen and an outer surface defining an annular space between the first elongate tubular member and the outer surface of the second tubular member, said annular space being a fluid supply lumen; and
an inflatable member situated within said radially recessed region and not extending beyond the distal end of the first elongate polymeric tubular member, sealed at each of its ends only to said first elongate polymeric tubular member, wherein said inflatable member, when deflated, providing said balloon catheter a substantially constant diameter commencing in a region proximally adjacent to the radially recessed region and continuing axially across the radially recessed region, and said inflatable member being fluid-connectable with said fluid supply lumen via at least one aperture through the first elongate polymeric member. - View Dependent Claims (41, 42, 43, 44, 45)
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Specification