Rigid annuloplasty device that becomes compliant after implantation
AssigneeMedtronic, Inc.
InventorsRandall V. Sparer, Darrel F. Untereker, Elizabeth A. Ebner, Thomas P. Grailer, Brett R. Vegoe, Hong S. Shim, Carlos M. G. Duran
Life of this patent
Estimating the term…
Abstract
A band-shaped annuloplasty device (e.g., C- or D-shaped ring) that is relatively rigid during handling and implantation and becomes relatively complaint after implantation. Preferably, the device includes a core material that softens after implantation.
Claims38
An annuloplasty device for implantation into a heart of a patient, comprising a band-shaped annuloplasty member having an initial modulus of elasticity of about 1 GPa or more, and a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment, wherein the band-shaped member comprises a non-degradable structural component and a flexibilizing component differing from the structural component, and wherein the flexibilizing component is located within the structural component, wherein the band-shaped member has a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment for no more than about 7 days.
An annuloplasty device for implantation into a heart of a patient, comprising a band-shaped member having an initial modulus of elasticity of about 1 GPa or more, and a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment, wherein the band-shaped member comprises a non-degradable structural component and a flexibilizing component differing from the structural component, and wherein the flexibilizing component is located within the structural component, wherein the band-shaped member has a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment for no more than about 3 days.
An annuloplasty device for implantation into a heart of a patient, comprising a band-shaped annuloplasty member having an initial modulus of elasticity of about 1 GPa or more, and a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment, wherein the band-shaped member comprises a non-degradable structural component and a flexibilizing component differing from the structural component, and wherein the structural component has an external surface and the flexibilizing component is coated on at least a portion of the external surface of the structural component.
An annuloplasty device for implantation into a heart of a patient, comprising a band-shaped annuloplasty member having an initial modulus of elasticity of about 1 GPa or more, and a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment for no more than about 7 days, wherein the band-shaped member comprises a non-degradable structural component and a flexibilizing component differing from the structural component and comprising poly(vinyl alcohol-co-vinyl acetate).
An annuloplasty device for implantation into a heart of a patient, comprising a band-shaped member having an initial modulus of elasticity of about 1 GPa or more, and a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment for no more than about 7 days;
- wherein the band shaped member comprises a first outer non-degradable material surrounding a second, differing core material that softens after immersion in the biological environment.
An annuloplasty device for implantation into a heart of a patient, comprising a band-shaped annuloplasty member having an initial modulus of elasticity of about 1 GPa or more, and a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment for no more than about 7 days, the device further comprising non-degradable structural means for providing support and flexibilizing means, differing from the structural means, for providing the change in modulus of elasticity after the immersion in the biological environment.
An annuloplasty device for implantation into a heart of a patient, comprising a band-shaped annuloplasty member having an initial modulus of elasticity of about 1 GPa or more, and a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment, the device comprising non-degradable structural means for providing support and flexibilizing means differing from the structural means, for providing a change in modulus of elasticity after immersion in a biological environment, wherein the flexibilizing means is impregnated in the structural means.
An annuloplasty device for implantation into a heart of a patient, comprising a band-shaped annuloplasty member having an initial modulus of elasticity of about 1 GPa or more, and a final modulus of elasticity of about 100 MPa or less after immersion in a biological environment, the device comprising non-degradable structural means for providing support and flexibilizing means differing from the structural means, for providing a change in modulus of elasticity after immersion in a biological environment, wherein the structural means has an external surface and the flexibilizing means is coated on at least a portion of the external surface of the structural means.
Dependencies are inferred from the claim text.