Adjustable cardiac valve implant with coupling mechanism
First Claim
1. An adjustable annuloplasty ring, comprising:
- an arcuate member configured to be attached to or near a cardiac valve annulus, said arcuate member comprising;
a receptacle end;
an insert end configured to engage said receptacle end of said arcuate member such that said arcuate member substantially forms a shape of a ring;
wherein said arcuate member is configured to change, after implantation in a patient'"'"'s body, from a first shape to a second, asymmetric shape in response to an activation energy;
wherein said activation energy is selected from the group consisting of electromagnetic energy, acoustic energy, and catheter-based energy; and
wherein said activation energy is a first activation energy, and the arcuate member further comprising;
a first section, located between said insert end and said receptacle end, said first section comprising a first shape memory material and being configured to change said arcuate member, in response to said first activation energy, after implantation in said patient'"'"'s body, from said first shape having a first circumference to said second, asymmetric shape having a second circumference, by movement of said insert end with respect to said receptacle end; and
a second section, located between said insert end and said receptacle end and separated from said first section by a boundary, comprising a second shape memory material and being configured to change said arcuate member, in response to a second activation energy, after implantation in said patient'"'"'s body, from said second circumference to a third circumference, by movement of said insert end with respect to said receptacle end;
wherein said second activation energy is selected from the group consisting of electromagnetic energy, acoustic energy, and catheter-based energy; and
wherein said change from said first shape to said second shape comprises movement of said insert end with respect to said receptacle end to change a circumference of said ring.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and devices are provided for support of a body structure. The devices can be adjusted within the body of a patient in a minimally invasive or non-invasive manner such as by applying energy percutaneously or external to the patient'"'"'s body. The energy may include, for example, acoustic energy, radio frequency energy, light energy and magnetic energy. Thus, as the body structure changes size and/or shape, the size and/or shape of the annuloplasty rings can be adjusted to provide continued reinforcement. In certain embodiments, the devices include a tubular member configured to be attached to or near a cardiac valve annulus. The tubular member includes a receptacle end and an insert end configured to couple with the receptacle end of the tubular member such that the tubular member substantially forms a shape of a ring. The insert end is configured to move with respect to the receptacle end to change a circumference of the ring.
231 Citations
22 Claims
-
1. An adjustable annuloplasty ring, comprising:
-
an arcuate member configured to be attached to or near a cardiac valve annulus, said arcuate member comprising; a receptacle end; an insert end configured to engage said receptacle end of said arcuate member such that said arcuate member substantially forms a shape of a ring; wherein said arcuate member is configured to change, after implantation in a patient'"'"'s body, from a first shape to a second, asymmetric shape in response to an activation energy; wherein said activation energy is selected from the group consisting of electromagnetic energy, acoustic energy, and catheter-based energy; and wherein said activation energy is a first activation energy, and the arcuate member further comprising; a first section, located between said insert end and said receptacle end, said first section comprising a first shape memory material and being configured to change said arcuate member, in response to said first activation energy, after implantation in said patient'"'"'s body, from said first shape having a first circumference to said second, asymmetric shape having a second circumference, by movement of said insert end with respect to said receptacle end; and a second section, located between said insert end and said receptacle end and separated from said first section by a boundary, comprising a second shape memory material and being configured to change said arcuate member, in response to a second activation energy, after implantation in said patient'"'"'s body, from said second circumference to a third circumference, by movement of said insert end with respect to said receptacle end; wherein said second activation energy is selected from the group consisting of electromagnetic energy, acoustic energy, and catheter-based energy; and wherein said change from said first shape to said second shape comprises movement of said insert end with respect to said receptacle end to change a circumference of said ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification