Conformable balloon
First Claim
Patent Images
1. A medical device comprising:
- an inner tube having a proximal portion and a distal portion;
an outer tube disposed about at least a portion of the inner tube, the outer tube having a proximal portion and a distal portion;
a balloon disposed about the inner tube, the balloon having a proximal end and a distal end, the proximal end of the balloon extending from the distal end of the outer tube;
a first inflation lumen in fluid communication with the balloon;
a first expandable diaphragm having a first end and a second end, the first end attached to the inner tube, the first expandable diaphragm interior to the balloon;
a retractable sheath disposed about the inner tube, the retractable sheath retractable from a first position in which it is disposed about at least a portion of the first expandable diaphragm to a second position in which the retractable sheath is axially displaced from the first diaphragm.
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Accused Products
Abstract
A medical device comprises an inner tube and an outer tube disposed about at least a portion of the inner tube. A balloon extends from the distal end of the outer tube. Within the balloon is a first expandable diaphragm, one end of which is attached to the inner tube. The first expandable diaphragm is covered by a retractable sheath disposed about the inner tube. Upon retraction of the retractable sheath, the diaphragm expands to sealingly contact the interior of the balloon in a first contact region and form at least a first compartment and a second compartment in the balloon.
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Citations
48 Claims
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1. A medical device comprising:
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an inner tube having a proximal portion and a distal portion;
an outer tube disposed about at least a portion of the inner tube, the outer tube having a proximal portion and a distal portion;
a balloon disposed about the inner tube, the balloon having a proximal end and a distal end, the proximal end of the balloon extending from the distal end of the outer tube;
a first inflation lumen in fluid communication with the balloon;
a first expandable diaphragm having a first end and a second end, the first end attached to the inner tube, the first expandable diaphragm interior to the balloon;
a retractable sheath disposed about the inner tube, the retractable sheath retractable from a first position in which it is disposed about at least a portion of the first expandable diaphragm to a second position in which the retractable sheath is axially displaced from the first diaphragm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13)
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10. A medical balloon assembly comprising:
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a balloon catheter comprising an inflatable medical balloon;
M expandable diaphragms disposed within the inflatable medical balloon, where M≧
1, each diaphragm expandable from a first position in which the diaphragm does not sealingly contact the balloon to a second position in which the diaphragm sealingly contacts the balloon, the balloon having at least M+1 compartments when the M expandable diaphragms are all in the second position. - View Dependent Claims (11, 12, 15, 16, 17, 19, 20, 21, 22, 24, 25, 26, 27, 29)
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14. The method of 13 wherein the balloon is at least partially inflated prior to the retracting step.
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18. A medical device comprising:
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a catheter tube;
a plurality of balloon elements disposed about the catheter tube;
an inflation lumen having a plurality of inflation ports therein, each balloon element disposed about at least one inflation port;
a movable sheath disposed about the inflation lumen, the movable sheath having at least one opening therein, the movable sheath movable such that each balloon element may be placed in fluid communication with the inflation lumen by moving the movable sheath to align an opening in the movable sheath with the inflation port about which the balloon element is disposed.
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28. A medical device comprising:
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a catheter tube;
a balloon disposed about the catheter tube;
an inflation lumen having an inflation port therein; and
a movable sheath disposed about the inflation lumen, the movable sheath having at least one opening therein, the movable sheath movable from an open position in which the opening in the movable sheath is at least partially aligned with the inflation port to a closed position in which the opening in the sheath is displaced from the infusion port.
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30. A medical device comprising:
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a catheter tube;
an outer medical balloon disposed about the catheter tube;
a first inflation lumen in fluid communication with the outer medical balloon;
a serpentine medical balloon disposed within the outer medical balloon, the serpentine balloon winding about the catheter tube;
a second inflation lumen in fluid communication with the serpentine medical balloon. - View Dependent Claims (31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42)
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36. A medical device comprising:
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a catheter tube;
an outer medical balloon disposed about the catheter tube; and
one or more serpentine medical balloons disposed within the outer medical balloon, each serpentine medical balloon wound about the catheter tube. - View Dependent Claims (43)
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44. A method of dilating a stenosis and treating the stenosis with radiation comprising the steps of:
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a) providing a brachytherapy device comprising 1) a catheter tube;
2) an outer medical balloon disposed about the catheter;
3) a serpentine medical balloon winding about the catheter tube within the outer medical balloon;
4) a radiation source b) inserting at least a portion of the brachytherapy device in a bodily vessel;
c) advancing the brachytherapy device to a desired bodily location;
d) expanding the outer medical balloon;
e) expanding the spiral medical balloon; and
f) advancing the radiation source through the inner tube to the stenosis. - View Dependent Claims (46, 48)
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45. A medical device comprising:
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a catheter tube;
at least one spiral medical balloon wound about the catheter tube, the spiral medical balloon characterized by a pitch which may be varied; and
an inflation lumen in fluid communication with said spiral medical balloon.
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47. A medical balloon transformable from a first configuration to a second configuration, the medical balloon in the first configuration having a first number of internal compartments, the medical balloon in the second configuration having more internal compartments than in the first configuration.
Specification