Balloons for medical devices and fabrication thereof
First Claim
1. A dilatation balloon, comprising:
- a length of tubing of polymeric material comprising Nylon 12, which tubing had been radially expanded to a predetermined balloon diameter;
said dilatation balloon has a collapsed profile which has a diameter less than said predetermined balloon diameter, said dilatation balloon further having a non-distended, inflated working diameter at which the dilatation balloon is inflated to its said predetermined balloon diameter, and said dilatation balloon also exhibits a maximum stretched inflation diameter to which the dilatation balloon is expandable without bursting under needed dilatation conditions, said maximum stretched inflation diameter exceeds said predetermined balloon diameter by between above 5 percent and about 30 percent; and
said dilatation balloon has a calculated tensile strength of between 15,000 psi and 30,000 psi.
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Accused Products
Abstract
Dilatation balloons and catheters including same are provided. The balloons are fabricated of a biaxially orientable material such as a nylon or a polyamide material, and they have an inflated, non-distended working profile as well as a stretched inflated profile which is achieved by applying pressure through a dilatation catheter or the like that is in excess of that needed to achieve the inflated, non-distended profile and which is adequate to effect dilatation or the like up to a maximum pre-bursting pressure application. The maximum pre-bursting size of the balloon can be tailored depending upon the needs of the particular balloon within a wide range of possible maximum pre-bursting sizes.
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Citations
28 Claims
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1. A dilatation balloon, comprising:
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a length of tubing of polymeric material comprising Nylon 12, which tubing had been radially expanded to a predetermined balloon diameter; said dilatation balloon has a collapsed profile which has a diameter less than said predetermined balloon diameter, said dilatation balloon further having a non-distended, inflated working diameter at which the dilatation balloon is inflated to its said predetermined balloon diameter, and said dilatation balloon also exhibits a maximum stretched inflation diameter to which the dilatation balloon is expandable without bursting under needed dilatation conditions, said maximum stretched inflation diameter exceeds said predetermined balloon diameter by between above 5 percent and about 30 percent; and said dilatation balloon has a calculated tensile strength of between 15,000 psi and 30,000 psi. - View Dependent Claims (2, 3, 4)
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5. A dilatation balloon, comprising:
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a length of tubing of polymeric material comprising Nylon 12, which tubing had been radially expanded to a predetermined balloon diameter; said dilatation balloon having a collapsed profile which has a diameter less than said predetermined balloon diameter, said dilatation balloon further having a non-distended, inflated working diameter at which the dilatation balloon is inflated to its said predetermined balloon diameter, and said dilatation balloon also exhibits a maximum stretched inflation diameter to which the dilatation balloon is expandable without bursting under needed dilatation conditions; and said maximum stretched inflation diameter exceeds said predetermined balloon diameter by between above 5 percent and about 30 percent. - View Dependent Claims (6, 7, 8)
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9. A dilatation balloon, comprising:
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a length of Nylon 12 tubing that had been radially expanded to a predetermined balloon diameter; and said dilatation balloon has a collapsed profile which has a diameter less than said predetermined balloon diameter, said dilatation balloon further having a non-distended, inflated working diameter at which the dilatation balloon is inflated to its said predetermined balloon diameter, said dilatation balloon also exhibits a maximum stretched inflation diameter to which the dilatation balloon is expandable without bursting under needed dilatation conditions, and said maximum stretched inflation diameter exceeds said predetermined balloon diameter. - View Dependent Claims (10, 11, 12)
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- 13. A dilatation balloon, comprising a length of Nylon 12 tubing that had been radially expanded to a predetermined balloon diameter.
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15. A dilatation catheter, comprising:
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a catheter body; a dilatation balloon member positioned along the length of said catheter body; said balloon member being constructed of a tubing of polymeric material comprising Nylon 12, which tubing had been radially expanded to provide a predetermined balloon diameter; said balloon member has a collapsed profile at which the outer diameter of the balloon member approximates the outer diameter of said catheter body, said balloon member further having a non-distended working diameter to which the balloon is inflated to its said predetermined balloon diameter without significant stretching thereof, and said balloon member also exhibits an expanded maximum inflated diameter to which the balloon member is stretched without bursting during dilatation, said maximum inflated diameter being in excess of said predetermined balloon diameter by between above 5 percent and about 30 percent; and said dilatation balloon member has a calculated tensile strength of between about 15,000 psi and about 30,000 psi. - View Dependent Claims (16, 17, 18)
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19. A dilatation catheter, comprising:
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a catheter body; a dilatation balloon member positioned along the length of said catheter body; said balloon member being constructed of a tubing of polymeric material comprising Nylon 12, which tubing had been radially expanded to provide a predetermined balloon diameter; and said balloon member has a collapsed profile at which the outer diameter of the balloon member approximates the outer diameter of said catheter body, said balloon member further having a non-distended working diameter to which the balloon is inflated to its said predetermined balloon diameter without significant stretching thereof, and said balloon member also exhibits an expanded maximum inflated diameter to which the balloon member is stretched without bursting during dilatation, said maximum inflated diameter being in excess of said predetermined balloon diameter by between above 5 percent and about 30 percent. - View Dependent Claims (20, 21, 22)
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23. A dilatation catheter, comprising:
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catheter body; a dilatation balloon member positioned along the length of said catheter body; said balloon member being constructed of a Nylon 12 tubing that had been radially expanded to provide a predetermined balloon diameter; and said balloon member has a collapsed profile at which the outer diameter of the balloon member approximates the outer diameter of said catheter body, said balloon member further having a non-distended working diameter to which the balloon is inflated to its said predetermined balloon diameter without significant stretching thereof, and said balloon member also exhibits an expanded maximum inflated diameter to which the balloon member is stretched without bursting during dilatation, said maximum inflated diameter being in excess of said predetermined balloon diameter. - View Dependent Claims (24, 25, 26)
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27. A dilatation catheter, comprising a catheter body;
- and a dilatation balloon member positioned along the length of said catheter body, said balloon member being constructed of Nylon 12 tubing that had been radially expanded to provide a predetermined balloon diameter.
- View Dependent Claims (28)
Specification