Inflatable penile prosthesis cylinders
An implantable inflatable penile prosthesis cylinder includes an outer tube member having a longitudinal axis, an inner tube member contained within the outer tube member, and one or more tensile support members within the inner tube member. The inner tube member includes at least one inflatable chamber section, at least a portion of which is defined by a wall of the inner tube member. The one or more tensile support members extend between interior surfaces of the wall, and are placed in tension when the at least one chamber section is in an inflated state.
1. An implantable inflatable penile prosthesis cylinder comprising:
an outer tube member having a longitudinal axis;
an inner tube member contained within the outer tube member, the inner tube member including an inflatable chamber section, wherein at least a portion of the inflatable chamber section is defined by a wall of the inner tube member; and
a tensile support member within the inner tube member, the tensile support member extending between interior surfaces of the wall, the tensile support member being formed separately from the inflatable chamber section,
wherein the tensile support member is in tension when the inflatable chamber section is in an inflated state.
2. The penile prosthesis cylinder according to claim 1 , wherein a section of the wall that is in a plane extending perpendicular to the longitudinal axis includes a first portion that presses toward the outer tube member in a radial direction relative to the longitudinal axis, when the inflatable chamber section is in the inflated state.
3. The penile prosthesis cylinder according to claim 2 , wherein the section of the wall includes a second portion that is displaced from the outer tube member a greater distance than the first portion, when the inflatable chamber section is in the inflated state.
4. The penile prosthesis cylinder according to claim 2 , wherein the section of the wall includes a second portion that faces the longitudinal axis, when the inflatable chamber section is in the inflated state.
5. The penile prosthesis cylinder according to claim 2 , wherein the section of the wall includes a second portion that is not directly constrained by the outer tube member, when the inflatable chamber section is in the inflated state.
6. The penile prosthesis cylinder according to claim 2 , wherein the first portion includes a convex section, and the second portion includes a concave portion, when the inflatable chamber section is in the inflated state.
7. The penile prosthesis cylinder according to claim 1 , wherein the tensile support member extends along the longitudinal axis.
8. The penile prosthesis cylinder according to claim 1 , wherein the first end or the second end of the tensile support member includes fillets.
9. The penile prosthesis cylinder according to claim 1 , wherein the inflatable chamber section comprises a plurality of chamber sections, and the tensile support member separates adjoining chamber sections.
10. The penile prosthesis cylinder according to claim 1 , wherein the inflatable chamber section comprises a plurality of chamber sections, and the tensile support member defines a side wall of one of the inflatable chamber sections.
11. A penile prosthesis comprising:
a pair of inflatable penile prosthesis cylinders, each penile prosthesis cylinder comprising:
an outer tube member having a longitudinal axis;
an inner tube member contained within the outer tube member, the inner tube member including a first inflatable chamber section and a second inflatable chamber section, wherein a portion of the first inflatable chamber section and the second inflatable chamber section is defined by a wall of the inner tube member; and
one or more tensile support members within the inner tube member, each tensile support member extending between interior surfaces of the wall of the first inflatable chamber section or the second inflatable chamber section, the one or more tensile support members being formed separately from the first inflatable chamber section and the second inflatable chamber section,
a reservoir containing fluid; and
a pump configured to transfer fluid from the reservoir into the first or second inflatable chamber section to transition the first or second inflatable chamber section and the penile prosthesis cylinders to an inflated state;
wherein the one or more tensile support members are in tension when the first or second chamber section is in the inflated state.
12. The penile prosthesis according to claim 11 , wherein the one or more tensile support members each extend along the longitudinal axis and include opposing ends that are attached to opposing interior sides of the wall.
13. The penile prosthesis according to claim 12 , wherein the one or more tensile support members separate adjoining first and second inflatable chamber sections.
14. The penile prosthesis according to claim 11 , wherein a section of the wall that is in a plane extending perpendicular to the longitudinal axis includes a first portion that presses toward the outer tube member in a radial direction relative to the longitudinal axis, and a second portion that is not directly constrained by the outer tube member, when the first or second inflatable chamber section is in the inflated state.
15. An implantable inflatable penile prosthesis cylinder comprising:
an inner tube member extending along a longitudinal axis; and
a plurality of tensile support members within the inner tube member, each tensile support member extending between interior surfaces of a wall of the inner tube member, the plurality of tensile support members being formed separately from the inner tube member,
wherein the tensile support members are tensioned when the inner tube member is in an inflated state.
16. The penile prosthesis cylinder according to claim 15 , further comprising an outer tube member, wherein the inner tube member is within an interior cavity of the outer tube member and encompasses a subset of a volume of the interior cavity when in the inflated state.
17. The penile prosthesis cylinder according to claim 16 , wherein the inner tube member extends about less than 90% of the circumference of the outer tube member.
18. The penile prosthesis cylinder according to claim 16 , wherein the inner tube member includes a plurality of inflatable chamber sections within the inner tube member that extend along the longitudinal axis.
19. The penile prosthesis cylinder according to claim 18 , wherein the tensile support members separate adjoining chamber sections.
20. The penile prosthesis cylinder according to claim 1 , wherein the tensile support member includes a first end and a second end, the first end being attached to a portion of the wall of the inner tube member that is adjacent to the outer tube member.