Valve treatment catheter and methods
First Claim
1. A catheter, comprising:
- an inflatable balloon assembly having an outer cylindrical sheath and an inner cylindrical sheath intermittently sealed to one another at predefined sections to provide an inflation region, where the inner cylindrical sheath defines a lumen that passes through the inflatable balloon assembly, and where the outer cylindrical sheath defines apertures that connect the inflation region to a containment pocket defined by the outer cylindrical sheath;
a cone section defined by an end portion of the outer cylindrical sheath and the inner cylindrical sheath, where the end portions of the outer and inner cylindrical sheaths define both an inflation lumen in fluid tight communication with the inflation region of the inflatable balloon assembly and a cutout that connects with the lumen that passes through the inflatable balloon assembly;
an inner balloon waist that extends from the end portion of the inner cylindrical sheath to couple to an inner shaft of the catheter; and
an outer balloon waist that extends from the end portion of the outer cylindrical sheath to couple to an outer shaft of the catheter;
where the inner balloon waist and inner shaft and the outer balloon waist and the outer shaft define an elongate lumen in fluid tight communication with the inflation lumen through which an inflation medium can flow to inflate the inflation region and pass through the apertures from the inflation region into the containment pocket.
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Abstract
The invention provides a catheter for insertion into a biological passage which contains a first flowing fluid, the catheter including a tubular member having a proximal end and a distal end; a fluid delivery lumen contained within the tubular member; 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, the balloon assembly including apertures in communication with the fluid delivery lumen; an inflation lumen in communication with the balloon member; and a valve contained within the inflatable balloon assembly. The inflatable balloon is assembly configured such that when the balloon member is in the inflated state: (i) sections of the balloon member contact the biological passage defining at least one containment pocket; (ii) the apertures are disposed in the containment pocket, (iii) a flow lumen is defined through the balloon member to allow the first fluid to flow through the balloon member; and (iv) the valve functions to allow the first flowing fluid to flow through the flow lumen in a physiologic direction, while blocking backflow of the first fluid through the flow lumen.
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Citations
20 Claims
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1. A catheter, comprising:
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an inflatable balloon assembly having an outer cylindrical sheath and an inner cylindrical sheath intermittently sealed to one another at predefined sections to provide an inflation region, where the inner cylindrical sheath defines a lumen that passes through the inflatable balloon assembly, and where the outer cylindrical sheath defines apertures that connect the inflation region to a containment pocket defined by the outer cylindrical sheath; a cone section defined by an end portion of the outer cylindrical sheath and the inner cylindrical sheath, where the end portions of the outer and inner cylindrical sheaths define both an inflation lumen in fluid tight communication with the inflation region of the inflatable balloon assembly and a cutout that connects with the lumen that passes through the inflatable balloon assembly; an inner balloon waist that extends from the end portion of the inner cylindrical sheath to couple to an inner shaft of the catheter; and an outer balloon waist that extends from the end portion of the outer cylindrical sheath to couple to an outer shaft of the catheter;
where the inner balloon waist and inner shaft and the outer balloon waist and the outer shaft define an elongate lumen in fluid tight communication with the inflation lumen through which an inflation medium can flow to inflate the inflation region and pass through the apertures from the inflation region into the containment pocket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An inflatable balloon assembly, comprising:
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an inner cylindrical sheath that defines a lumen; an outer cylindrical sheath sealed to the inner cylindrical sheath to define an inflation region, where the outer cylindrical sheath defines two or more containment pockets in fluid communication with the inflation region through apertures defined by the outer cylindrical sheath; and a cone section defining an inflation lumen in fluid tight communication with the inflation region of the inflatable balloon assembly and defining a cutout to the lumen passing through the inflatable balloon assembly. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification