Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-10420643-B2
Publication Date
2019-09-24
Expiration Date
Abstract
A prosthetic device for attachment to a vascular structure includes a body with an axial length configured to be adjustable by manipulation of at least one design feature but not materially affected by simple luminal pressurization. The at least one design feature includes at least one of a reducing mechanism or a purse-string provided along at least part of a circumference of the body to actuate reduction of a diameter of the device. The prosthetic device may include a body with an axial length configured to be adjustable and at least one roll-down segment at one end of the body. The at least one roll-down segment may be configured to be facilitated or supported by integrated shape memory materials to maintain the roll-down characteristics.
Core Innovation
The disclosed invention provides a prosthetic device for attachment to a vascular structure. The device includes a flexible tube with a lumen extending from a first opening at a first end to a second opening at a second end, and an attachment structure at the first end. A roll-down segment is disposed at the second end and includes at least a fully extended configuration and a fully collapsed configuration in which the flexible tube is at less than 50% of full length.
In further disclosed embodiments, the prosthetic device can include roll-down segments at both the first and second ends. Each end has a corresponding roll-down mechanism configured to urge its roll-down segment between a fully extended configuration and a fully collapsed configuration, and shape memory materials can be used as part of the roll-down mechanism, including a shape memory structure biased toward the fully collapsed configuration. The fully collapsed configuration can be characterized as a Swiss roll-like shape.
The invention also discloses adjustable features for matching vascular anatomy and facilitating visualization. A diameter adjustment structure is disposed along the flexible tube, including implementations such as a purse-string suture or a shape memory diameter adjustment structure, and optional side-branch prosthetic graft features can include a cylindrical side branch with a flexible side tube whose lumen connects via a first side tube opening to the lumen of the flexible tube, and a roll-down segment at a second side tube end.
Claims Coverage
The document provides three independent claims that cover a prosthetic device with a roll-down segment at one end, a prosthetic device with roll-down segments at both ends, and a method of attaching such a prosthetic device by extending and operating the roll-down segment. Across the independent claims, the coverage centers on flexible-tube lumens and roll-down mechanisms configured to urge roll-down segments between fully extended and fully collapsed configurations, including a less-than-50%-of-full-length limitation in the one-end device.
Prosthetic device with roll-down segment at second end
A prosthetic device for attachment to a vascular structure including a flexible tube with a lumen extending between first and second openings, an attachment structure at the first end, and a roll-down segment disposed at the second end with a fully extended configuration and a fully collapsed configuration in which the flexible tube is at less than 50% of full length, and a roll-down mechanism operably coupled with the roll-down segment configured to urge the roll-down segment between the configurations.
Prosthetic device with roll-down segments at both ends
A prosthetic device for attachment to a vascular structure including a flexible tube with a lumen extending between first and second openings, a first roll-down segment disposed at the first end with a first fully extended configuration and a first fully collapsed configuration, a first roll-down mechanism configured to urge the first roll-down segment between the first configurations, a second roll-down segment disposed at the second end with a second fully extended configuration and a second fully collapsed configuration, and a second roll-down mechanism configured to urge the second roll-down segment between the second configurations.
Method of attaching prosthetic device by urging roll-down segment and extending
A method of attaching a prosthetic device to a vascular structure including attaching a first end of a flexible tube to the vascular structure, the flexible tube comprising a lumen, a roll-down segment disposed at a second end with a fully extended configuration and a fully collapsed configuration in which the flexible tube is at less than 50% of full length, and a roll-down mechanism operably coupled with the roll-down segment configured to urge the roll-down segment between the configurations, and extending the roll-down segment toward a fully extended configuration.
Overall claim coverage is directed to prosthetic devices and an attaching method that use roll-down segments and roll-down mechanisms to move a flexible tube’s configuration between fully extended and fully collapsed states, including a less-than-50%-of-full-length collapsed limitation. Dependent claim refinements include shape memory bias toward collapse, a Swiss roll-like collapsed configuration, diameter adjustment structures, and optional cylindrical side-branch roll-down features.
Stated Advantages
Documented Applications
No documented applications found
Interested in licensing this patent?