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US 7,572,289 B2Granted
Anchoring barb for attachment to a medical prosthesis
AssigneesMED Institute, Inc., Cook Incorporated
InventorsRichard B. Sisken, Brian D. Choules, Benjamin Nickless, Charles W. Agnew
Life of this patent
Estimating the term…
Abstract
A medical prosthesis for implantation within the body of a patient comprises a support structure and an anchoring element that comprises a basal portion and at least one barb extending from the basal portion. The anchoring element may be slidably attached to the strut and the strut may include a first stop and a second stop that define a longitudinal zone of movement for the anchoring element. Other devices and methods are described.
Claims12
A medical prosthesis for implantation within the body of a patient, comprising:
- a support structure comprising at least one strut including a first stop and a second stop;
- an anchoring element comprising a basal portion with at least one barb extending therefrom, wherein the anchoring element is slidably attached to the at least one strut and is slidable along a length of the strut between a first position adjacent the first stop and a second position adjacent the second stop;
- a structure that changes the orientation of the barb when the anchoring element slides from the first position to the second position;
- and
- an actuation mechanism attached to the barb and a deflecting element located on the strut, wherein the actuating mechanism is operable to urge the anchoring element over the strut until it contacts the deflecting element.
2 more elements
A medical prosthesis for implantation within the body of a patient, comprising:
- a support structure comprising at least one strut including a first stop and a second stop;
- an anchoring element comprising a basal portion with at least one barb extending therefrom, wherein the anchoring element is slidably attached to the at least one strut and is slidable along a length of the strut between a first position adjacent the first stop and a second position adjacent the second stop;
- and
- a structure that changes the orientation of the barb when the anchoring element slides from the first position to the second position;
- wherein the anchoring element is manipulable by rotation and wherein the strut is twisted to guide the anchoring element from the first to the second orientation.
2 more elements
A medical prosthesis for implantation within the body of a patient, comprising:
- a support structure comprising at least one strut including a first stop and a second stop;
- an anchoring element comprising a basal portion with at least one barb extending therefrom, wherein the anchoring element is slidably attached to the at least one strut and is slidable along a length of the strut between a first position adjacent the first stop and a second position adjacent the second stop;
- and
- a structure that changes the orientation of the barb when the anchoring element slides from the first position to the second position;
- wherein the anchoring element is manipulable by rotation and wherein the strut has spiral threads or grooves to guide the anchoring element from the first to the second orientation.
2 more elements
A medical prosthesis for implantation within the body of a patient, comprising:
- a support structure comprising at least one strut including a first stop and a second stop;
- an anchoring element comprising a basal portion with at least one barb extending therefrom, wherein the anchoring element is slidably attached to the at least one strut and is slidable along a length of the strut between a first position adjacent the first stop and a second position adjacent the second stop;
- and
- a structure that changes the orientation of the barb when the anchoring element slides from the first position to the second position;
- wherein the first stop is slidably attached to the strut and is configured to urge the anchoring element towards the second stop.
2 more elements
A medical prosthesis for implantation within the body of a patient, comprising:
- a support structure comprising at least one strut;
- an anchoring element comprising a basal portion with at feast one barb extending therefrom;
- and
- an actuation mechanism attached to the barb and a deflecting element located on the strut;
- wherein the at least one barb includes at least one extended configuration for penetrating the tissue of a bodily surface when the prosthesis is implanted thereagainst;
- wherein the anchoring element is slidably attached to the at least one strut;
- wherein the at least one strut includes a first stop and a second stop, the stops defining a longitudinal zone of movement for the anchoring element, the length of the longitudinal zone being greater than the length of the anchoring element;
- wherein the anchoring element is manipulable between a first configuration in which the barb assumes a first orientation and a second configuration in which the barb assumes a second orientation;
- wherein the second orientation is better adapted for allowing the barb to engage the tissue adjacent the prosthesis than is the first orientation;
- and
- wherein the actuating mechanism is operable to urge the anchoring element over the strut until it contacts the deflecting element.
8 more elements
A medical prosthesis for implantation within the body of a patient, comprising:
- a support structure comprising at least one strut;
- and
- an anchoring element comprising a basal portion with at least one barb extending therefrom;
- wherein the at least one barb includes at least one extended configuration for penetrating the tissue of a bodily surface when the prosthesis is implanted thereagainst;
- wherein the anchoring element is slidably attached to the at least one strut;
- wherein the at least one strut includes a first stop and a second stop, the stops defining a longitudinal zone of movement for the anchoring element, the length of the longitudinal zone being greater than the length of the anchoring element;
- wherein the anchoring element is manipulable between a first configuration in which the barb assumes a first orientation and a second configuration in which the barb assumes a second orientation;
- wherein the second orientation is better adapted for allowing the barb to engage the tissue adjacent the prosthesis than is the first orientation;
- and
- wherein the anchoring element is manipulable by rotation and the strut is twisted to guide the anchoring element from the first to the second orientation.
7 more elements
A medical prosthesis for implantation within the body of a patient, comprising:
- a support structure comprising at least one strut;
- and
- an anchoring element comprising a basal portion with at least one barb extending therefrom;
- wherein the at least one barb includes at least one extended configuration for penetrating the tissue of a bodily surface when the prosthesis is implanted thereagainst;
- wherein the anchoring element is slidably attached to the at least one strut;
- wherein the at least one strut includes a first stop and a second stop, the stops defining a longitudinal zone of movement for the anchoring element, the length of the longitudinal zone being greater than the length of the anchoring element;
- wherein the anchoring element is manipulable between a first configuration in which the barb assumes a first orientation and a second configuration in which the barb assumes a second orientation;
- wherein the second orientation is better adapted for allowing the barb to engage the tissue adjacent the prosthesis than is the first orientation;
- and
- wherein the anchoring element is manipulable by rotation and the strut has spiral threads or grooves to guide the anchoring element from the first to the second orientation.
7 more elements
A medical prosthesis for implantation within the body of a patient, comprising:
- a support structure comprising at least one strut;
- and
- an anchoring element comprising a basal portion with at least one barb extending therefrom;
- wherein the at least one barb includes at least one extended configuration for penetrating the tissue of a bodily surface when the prosthesis is implanted thereagainst;
- wherein the anchoring element is slidably attached to the at least one strut;
- wherein the at least one strut includes a first stop and a second stop, the stops defining a longitudinal zone of movement for the anchoring element, the length of the longitudinal zone being greater than the length of the anchoring element;
- wherein the anchoring element is manipulable between a first configuration in which the barb assumes a first orientation and a second configuration in which the barb assumes a second orientation;
- wherein the second orientation is better adapted for allowing the barb to engage the tissue adjacent the prosthesis than is the first orientation;
- and
- wherein the first stop is slidably attached to the strut and is configured to urge the anchoring element towards the second stop.
7 more elements
Dependencies are inferred from the claim text.