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US 2011/0238105 A1Published application
Vivo inflatable structures, for example to expand stents
OwnerDaniel Gelbart, Matthew J. Rustinventors
Life of this patent
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Abstract
Multi-balloon catheter structures that are able to move with respect to one another may provide superior compliance in tortuous passages to, for example, perform angioplasty and/or expand stents. Two or more balloons may be inflated to equal pressures. A length of the balloons may be sufficiently longer than a length of a stent to accommodate axial movement of the balloons. One or more balloons may be lubricous or carry a lubricant.
Claims65
An in vivo article, comprising:
- a first inflatable structure having a port and at least one distal-most portion spaced most distally from the port of the first inflatable structure;
- and
- at least a second inflatable structure having a port and at least one distal-most portion spaced most distally from the port of the second inflatable structure, the second inflatable structure physically coupled to the first inflatable structure for intravascular travel therewith, the at least one distal-most portions of each of at least the first and the second inflatable structures moveable with respect to one another, the first and the second inflatable structures sized to be received in a lumen of a body.
A catheter device, comprising:
- a first inflatable balloon;
- a second inflatable balloon;
- at least a third inflatable balloon;
- and
- a catheter having at least one lumen, the catheter physically coupled to move at least the first, the second and the third inflatable balloons through vasculature and the at least one lumen fluidly coupled to an interior of at least one of the first, the second, and the third inflatable balloons.
2 more elements
A medical article, comprising:
- a first inflatable balloon;
- and
- at least a second inflatable balloon coupled to at least partially axially overlap the first inflatable balloon, wherein an internal pressure of the second inflatable balloon is equal to an internal pressure of the first inflatable balloon when inflated during use, the first and the second inflatable balloons sized to be received in vivo in a body.
A catheter device to expand a stent, the catheter device comprising:
- a catheter having at least one lumen;
- and
- at least a first inflatable balloon having a length sufficiently longer than a length of the stent such that the first inflatable balloon physically interacts over an entire length of the stent when the first inflatable balloon is inflated and bent, the first inflatable balloon physically coupled to the catheter to move through vasculature therewith, an interior of at least the first inflatable balloon fluidly coupled with the at least one lumen of the catheter.
A medical article for in vivo use, comprising:
- a plurality of inflatable balloons sized to be received in a bodily lumen in at least partially overlapping relation;
- and
- a lubricant carried by at least one of the inflatable balloons to lower a friction coefficient between the inflatable balloons in at least a partially inflated state.
A method of forming an in vivo inflation device, the method comprising:
- providing a first inflatable structure, the first inflatable structure being elongated and having a pair of opposed ends;
- providing a second inflatable structure, the second inflatable structure being elongated and having a pair of opposed ends;
- physically coupling the first and the second inflatable structures to one another between the pair of opposed ends;
- and
- forming a port that provides fluid access into a respective interior of each of the first and the second inflatable structures.
2 more elements
An in vivo medical article, comprising:
- a first structure having a port and a plurality of inflatable chambers formed therein at least two of the inflatable chambers fluidly communicatively coupled to the port, at least two of the inflatable chambers having distal-most portions spaced most distally from the port, at least a portion of the at least two inflatable chambers moveable with respect to one another.
A method of forming an in vivo inflation device, the method comprising:
- providing a first structure, the first structure having at least two elongated fingers;
- providing a second structure, the second structure having at least two elongated fingers;
- physically coupling the first and the second structures to one another to form a first chamber and at least a second chamber in respective ones of the elongated fingers;
- and
- providing a port that provides fluid access into the first and at least the second chambers.
2 more elements
An in vivo article, comprising:
- at least three inflatable structures having a port and at least one distal-most portion spaced most distally from the port of the inflatable structure, the inflatable structures physically coupled to one another for intravascular travel therewith, the at least one distal-most portions of each inflatable structure moveable with respect to one another, the first and the second inflatable structures sized to be received in a lumen of a body, the ports of the inflatable structures positioned eccentrically and proximally to one another.
An in vivo article, comprising:
- a central inflatable structure having a port and at least one distal-most portion spaced most distally from the port of the first inflatable structure;
- and
- at least three peripheral inflatable structures having a port and at least one distal-most portion spaced most distally from the port of the peripheral inflatable structure, the peripheral inflatable structures physically coupled to the central inflatable structure for intravascular travel therewith, the at least one distal-most portions of each inflatable structure moveable with respect to one another, the inflatable structures sized to be received in a lumen of a body, the ports of the peripheral inflatable structures positioned eccentrically and proximally to the central inflatable structure.
An in vivo article, comprising:
- a first inflatable structure having a port and at least one distal-most portion spaced most distally from the port of the first inflatable structure;
- at least a second inflatable structure having a port and at least one distal-most portion spaced most distally from the port of the second inflatable structure, the second inflatable structure physically coupled to the first inflatable structure for intravascular travel therewith, the at least one distal-most portions of each of at least the first and the second inflatable structures moveable with respect to one another, the at least one distal-most portions of each of at least the first and the second inflatable structures having a restraint with a distal end spaced most distally therefrom, the first and the second inflatable structures sized to be received in a lumen of a body;
- and
- a restraint housing slidably engaging each restraint.
1 more element
Dependencies are inferred from the claim text.