Medical balloon having strengthening rods
First Claim
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1. A non-compliant medical balloon, where the balloon may be changed from a deflated state to an inflated state by increasing the internal pressure within the balloon, comprising:
- a balloon layer having an outer surface, the balloon layer including a base layer, an adhesive layer, a first reinforcing layer, a second reinforcing layer and an outer coating layer;
the base layer being formed of a polymer material in the shape of the inflated balloon;
the adhesive layer being applied directly to the surface of the base layer;
the first reinforcing layer being affixed to the adhesive layer, the first reinforcing layer being one of eithera plurality of discrete inelastic fibers oriented substantially parallel to the long axis of the balloon and having a length substantially equal to the length of the long axis of the balloon anda first layer of textile fabric material, the textile fabric material being one of a woven, knitted, braided and non-woven fabric;
the second reinforcing layer being applied at least partially over the first reinforcing layer, the second reinforcing layer being one of eitherat least one inelastic fiber wrapped around the circumference of the balloon substantially transverse to the long axis of the balloon such that the circumferential inelastic fibers are evenly distributed along the length of the long axis of the balloon anda second layer of textile fabric material, the textile fabric material being one of a woven, knitted, braided and non-woven fabric;
at least one of the first and second reinforcing layers being one of the first and second layer of textile fabric material;
the outer coating layer being applied over the second reinforcing layer and affixing the second reinforcing layer to the first reinforcing layer; and
a strengthening rod connected to the outer surface of the balloon layer;
wherein, when the balloon is in the deflated state, the outer surface of the balloon layer has a folded configuration of relatively small diameter, when the balloon is in a fully inflated state, the outer surface of the balloon layer has an unfolded configuration with a relatively large diameter, and when the balloon is fully inflated, it has a length and diameter that do not substantially change as the internal pressure increases.
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Abstract
A non-compliant medical balloon includes a balloon layer having an outer surface and a strengthening rod connected to the outer surface of the balloon layer. The strengthening rod may be connected longitudinally on the outer surface of the balloon layer. Typically, the balloon is formed of a polymer like polyethylene terephthalate.
136 Citations
36 Claims
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1. A non-compliant medical balloon, where the balloon may be changed from a deflated state to an inflated state by increasing the internal pressure within the balloon, comprising:
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a balloon layer having an outer surface, the balloon layer including a base layer, an adhesive layer, a first reinforcing layer, a second reinforcing layer and an outer coating layer; the base layer being formed of a polymer material in the shape of the inflated balloon; the adhesive layer being applied directly to the surface of the base layer; the first reinforcing layer being affixed to the adhesive layer, the first reinforcing layer being one of either a plurality of discrete inelastic fibers oriented substantially parallel to the long axis of the balloon and having a length substantially equal to the length of the long axis of the balloon and a first layer of textile fabric material, the textile fabric material being one of a woven, knitted, braided and non-woven fabric; the second reinforcing layer being applied at least partially over the first reinforcing layer, the second reinforcing layer being one of either at least one inelastic fiber wrapped around the circumference of the balloon substantially transverse to the long axis of the balloon such that the circumferential inelastic fibers are evenly distributed along the length of the long axis of the balloon and a second layer of textile fabric material, the textile fabric material being one of a woven, knitted, braided and non-woven fabric; at least one of the first and second reinforcing layers being one of the first and second layer of textile fabric material; the outer coating layer being applied over the second reinforcing layer and affixing the second reinforcing layer to the first reinforcing layer; and a strengthening rod connected to the outer surface of the balloon layer; wherein, when the balloon is in the deflated state, the outer surface of the balloon layer has a folded configuration of relatively small diameter, when the balloon is in a fully inflated state, the outer surface of the balloon layer has an unfolded configuration with a relatively large diameter, and when the balloon is fully inflated, it has a length and diameter that do not substantially change as the internal pressure increases. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A non-compliant medical balloon catheter, where the balloon may be changed from a deflated state to an inflated state by increasing the internal pressure within the balloon, comprising:
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a catheter tube; a balloon layer having an outer surface, wherein said balloon layer is connected to said catheter tube, the balloon layer including a base layer, an adhesive layer, a first reinforcing layer, a second reinforcing layer and an outer coating layer; the base layer being formed of a polymer material in the shape of the inflated balloon; the adhesive layer being applied directly to the surface of the base layer; the first reinforcing layer being affixed to the adhesive layer, the first reinforcing layer being one of either a plurality of discrete inelastic fibers oriented substantially parallel to the long axis of the balloon and having a length substantially equal to the length of the long axis of the balloon and a first layer of textile fabric material, the textile fabric material being one of a woven, knitted, braided and non-woven fabric; the second reinforcing layer being applied at least partially over the first reinforcing layer, the second reinforcing layer being one of either at least one inelastic fiber wrapped around the circumference of the balloon substantially transverse to the long axis of the balloon such that the circumferential inelastic fibers are evenly distributed along the length of the long axis of the balloon and a second layer of textile fabric material, the textile fabric material being one of a woven, knitted, braided and non-woven fabric; at least one of the first and second reinforcing layers being one of the first and second layer of textile fabric material; the outer coating layer being applied over the second reinforcing layer and affixing the second reinforcing layer to the first reinforcing layer; and a strengthening rod connected to the outer surface of the balloon layer; wherein, when the balloon is in the deflated state, the outer surface of the balloon layer has a folded configuration of relatively small diameter, when the balloon is in a fully inflated state, the outer surface of the balloon layer has an unfolded configuration with a relatively large diameter, and when the balloon is fully inflated, it has a length and diameter that do not substantially change as the internal pressure increases. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A non-compliant medical balloon that may be changed from a deflated state to an inflated state by increasing the internal pressure within the balloon, the balloon comprising:
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a balloon layer having an outer surface, the balloon layer including a base layer, a first reinforcing layer, and a second reinforcing layer; the base layer being formed of a polymer material in the shape of the inflated balloon; the first reinforcing layer overlying the base layer; the second reinforcing layer at least partially overlying the first reinforcing layer; one of the first and second reinforcing layers being a textile fabric material, the textile fabric material being one of a woven, knitted, braided and non-woven fabric comprising a plurality of fibers oriented at angles to one another; the other of the first and second reinforcing layers being formed of inelastic fibers aligned in one of either a first direction and a second direction, the first direction being substantially parallel to the long axis of the balloon and the second direction being around the circumference of the balloon substantially transverse to the long axis of the balloon; and a strengthening rod connected to the outer surface of the balloon layer; wherein, when the balloon is in the deflated state, the outer surface of the balloon layer has a folded configuration of relatively small diameter, when the balloon is in a fully inflated state, the outer surface of the balloon layer has an unfolded configuration with a relatively large diameter, and when the balloon is fully inflated, it has a length and diameter that do not substantially change as the internal pressure increases. - View Dependent Claims (34, 35, 36)
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Specification