Balloon catheter having an expandable distal end
First Claim
1. A balloon catheter for use in mammalian hollow body organs comprising:
- a first elongated tubular body with a distal end, a proximal end and a lumen defined therebetween;
a second elongated tubular body with a distal end, a proximal end, and a lumen defined therebetween, wherein said second tubular body is positioned within the lumen of said first elongated tubular body; and
an inflatable member connected to the distal end of said first tubular body and the distal end of said second tubular body.
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Accused Products
Abstract
A catheter assembly having a balloon integrated at its distal tip. The balloon, while inflated, prevents the back-flow of fluid introduced through the catheter assembly into vessels or ducts in a mammalian subject. The catheter has an inner lumen and a coaxial outer lumen. An inflatable member attached at the distal end of the catheter forms the balloon. The outer lumen provides the channel for inflating the balloon and the inner lumen provides the channel for a guide wire or for use in delivery of fluids or particles. This low profile balloon catheter design allows for high maneuverability and also facilitates the manufacture of small diameter balloon catheters.
141 Citations
26 Claims
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1. A balloon catheter for use in mammalian hollow body organs comprising:
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a first elongated tubular body with a distal end, a proximal end and a lumen defined therebetween;
a second elongated tubular body with a distal end, a proximal end, and a lumen defined therebetween, wherein said second tubular body is positioned within the lumen of said first elongated tubular body; and
an inflatable member connected to the distal end of said first tubular body and the distal end of said second tubular body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A balloon catheter for use in mammalian hollow body organs comprising:
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an elongated flexible tubular body with a distal end and a proximal end, said elongated flexible tubular body defining a first channel extending from the proximal end to the distal end of said elongated flexible tubular body, and said elongated flexible tubular body further defining a second channel extending from the proximal end to the distal end of said elongated flexible tubular body;
an inflatable member adapted to a tip at the distal end of said elongated flexible tubular body with said inflatable member in fluid communication with said first channel.
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24. A balloon unit for use in mammalian vessels comprising:
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a first tubular body with a distal end, a proximal end and a lumen defined therebetween;
a second tubular body with a distal end, a proximal end and a lumen defined therebetween, wherein said second tubular body is concentrically positioned within the lumen of said first tubular body and wherein an annular space is formed between the second tubular body and the first tubular body, and wherein the distal end of said second tubular body extends beyond the distal end of said first tubular body; and
an inflatable member attached to the distal end of said first tubular body and the distal end of said second tubular body, wherein said inflatable member is adapted to inflate when a pressure in the annular space is increased.
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25. A process of delivering a chemical locally within a mammalian body, comprising:
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a.) advancing a balloon catheter into said mammalian body, wherein said balloon catheter comprises a first elongated tubular body with a distal end, a proximal end and defining a lumen therebetween, a second elongated tubular body with a distal end, a proximal end and defining a lumen therebetween, wherein said second tubular body is positioned in the lumen of said first elongated tubular body, and an inflatable member connected to the distal end of said first tubular body and the distal end of said second tubular body;
b.) inflating said inflatable member; and
c.) injecting said chemical into the proximal end of the lumen of said second tubular body such that the chemical is delivered from the distal end of the second tubular body.
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26. A process of delivering radiation locally within a mammalian body, comprising:
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a.) advancing a balloon catheter into said mammalian body, wherein said balloon catheter comprising a first elongated tubular body with a distal end, a proximal end and defining a lumen therebetween, a second elongated tubular body with a distal end, a proximal end and defining a lumen therebetween, wherein said second tubular body is positioned in the lumen of said first elongated tubular body, and an inflatable member connected to the distal end of said first tubular body and the distal end of said second tubular body; and
b.) injecting a radioactive isotope into a space defined by said inflatable member.
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Specification