CPC A61M 25/0053 (2013.01) [A61M 25/0045 (2013.01); A61B 2017/22079 (2013.01); A61M 2025/0059 (2013.01)] | 23 Claims |
1. A catheter, comprising:
an inner liner;
an outer jacket; and
a structural support member positioned between at least a portion of the inner liner and at least a portion of the outer jacket,
wherein the structural support member comprises a metal,
wherein each of the inner liner and the outer jacket comprises a polymer,
wherein a first portion of the structural support member has a first density and a second portion of the structural support member has a second density that is less than the first density,
wherein a surface of at least a portion of the structural support member is surface treated to increase an adhesion of the metal of the surface to the polymer of at least one of the inner liner or the outer jacket and resist separation of two or more of the inner liner, the outer jacket, or the structural support member in response to a bending or compressive force on the catheter,
wherein the surface that is surface treated comprises a surface of the first portion of the structural support member,
wherein a surface of the second portion of the structural support member is either not surface treated or surface treated to a lesser degree than the first portion of the structural support member, and
wherein the surface treatment comprises at least one of a physical treatment or a chemical treatment of the surface.
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18. A catheter, comprising:
an inner liner;
an outer jacket;
a support layer positioned between at least a portion of the inner liner and at least a portion of the outer jacket; and
a structural support member positioned between at least a portion of the inner liner and at least a portion of the outer jacket,
wherein the structural support member comprises a metal,
wherein each of the inner liner, the outer jacket, and the support layer comprises a polymer,
wherein a first portion of the structural support member has a first density and a second portion of the structural support member has a second density that is less than the first density,
wherein a surface of at least a portion of the structural support member is surface treated to increase an adhesion of the metal of the surface to the polymer of at least one of the inner liner, the outer jacket, or the support layer and resist separation of two or more of the inner liner, the outer jacket, or the structural support member in response to a bending or compressive force on the catheter,
wherein the surface that is surface treated comprises a surface of the first portion of the structural support member,
wherein a surface of the second portion of the structural support member is either not surface treated or surface treated to a lesser degree than the first portion of the structural support member, and
wherein the surface treatment comprises at least one of a physical treatment or a chemical treatment of the surface.
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