Implantation system for delivery of a heart valve prosthesis
First Claim
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1. An implantation system, comprising:
- an elongated cylindrical member having spaced apart ends, at least one of the ends providing an opening;
a body portion from which the cylindrical member extends to terminate in the opening that is spaced longitudinally apart from the body portion, the body portion having a greater outer diameter than the cylindrical member, the cylindrical member having an inner diameter in a range from about 5 mm to about 15 mm, the cylindrical member and body portion being substantially coaxial along a linear axis extending through the cylindrical member and the body portion;
a heart valve prosthesis including a generally cylindrical support having axially spaced apart ends, a valve mounted within the support at a fixed axial position between the spaced apart ends of the support, the prosthesis being deformable to a first condition in which the prosthesis has a reduced cross-sectional dimension, the support being biased to expand the prosthesis radially outwardly from the first condition to a second condition in which the prosthesis has a cross-sectional dimension that is greater than the reduced cross-sectional dimension, the prosthesis being mounted within the cylindrical member in the first condition; and
a plunger operative to traverse at least part of the cylindrical member and urge the prosthesis from the cylindrical member through the opening.
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Abstract
A heart valve prosthesis and method of implanting the prosthesis are disclosed. A valve is mounted within a support apparatus that is deformable between a first condition and a second condition. The prosthesis has a cross-sectional dimension in the second condition that is less than a cross-sectional dimension of the supported valve when in first condition. The prosthesis can be implanted into a patient'"'"'s heart, such as during a direct vision procedure through a tubular implantation apparatus that maintains the prosthesis in its second condition until discharged from the tubular apparatus.
416 Citations
20 Claims
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1. An implantation system, comprising:
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an elongated cylindrical member having spaced apart ends, at least one of the ends providing an opening; a body portion from which the cylindrical member extends to terminate in the opening that is spaced longitudinally apart from the body portion, the body portion having a greater outer diameter than the cylindrical member, the cylindrical member having an inner diameter in a range from about 5 mm to about 15 mm, the cylindrical member and body portion being substantially coaxial along a linear axis extending through the cylindrical member and the body portion; a heart valve prosthesis including a generally cylindrical support having axially spaced apart ends, a valve mounted within the support at a fixed axial position between the spaced apart ends of the support, the prosthesis being deformable to a first condition in which the prosthesis has a reduced cross-sectional dimension, the support being biased to expand the prosthesis radially outwardly from the first condition to a second condition in which the prosthesis has a cross-sectional dimension that is greater than the reduced cross-sectional dimension, the prosthesis being mounted within the cylindrical member in the first condition; and a plunger operative to traverse at least part of the cylindrical member and urge the prosthesis from the cylindrical member through the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantation system, comprising:
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an implanter comprising; an elongated cylindrical member having spaced apart ends and a lumen extending through the cylindrical member, at least one of the ends providing an opening into the lumen; a body portion having a greater outer diameter than the cylindrical member, the cylindrical member extending from the body portion to terminate in the opening spaced longitudinally apart from the body portion, the cylindrical member and body portion being substantially coaxial along a linear axis that extends through the implanter; a plunger operative to traverse at least part of the lumen along the linear axis; and a heart valve prosthesis comprising; a generally cylindrical support having axially spaced apart ends, and a valve mounted within the support, the prosthesis being deformable to a first condition in which the prosthesis has a reduced cross-sectional dimension and being expandable from the first condition to a second condition in which the prosthesis has a cross-sectional dimension that is greater than the reduced cross-sectional dimension, the prosthesis being mounted within the cylindrical member in the first condition, such that the plunger is operative to traverse at least part of the cylindrical member and urge the prosthesis from the cylindrical member through the opening. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification