Delivery devices and methods for heart valve repair
First Claim
1. A method for advancing one or more devices into a left ventricle of a heart to contact a mitral valve annulus, the method comprising:
- advancing a steerable guide catheter into the left ventricle and around at least a portion of the mitral valve annulus;
passing a guide sheath over the steerable guide catheter;
withdrawing the steerable guide catheter out of the guide sheath; and
advancing one or more devices through the guide sheath to contact the mitral valve annulus.
1 Assignment
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Accused Products
Abstract
Devices, systems and methods facilitate positioning of a cardiac valve annulus treatment device, thus enhancing treatment of the annulus. Methods generally involve advancing an anchor delivery device through vasculature of the patient to a location in the heart for treating the valve annulus, contacting the anchor delivery device with a length of the valve annulus, delivering a plurality of coupled anchors from the anchor delivery device to secure the anchors to the annulus, and drawing the anchors together to circumferentially tighten the valve annulus. Devices generally include an elongate catheter having at least one tensioning member and at least one tensioning actuator for deforming a distal portion of the catheter to help it conform to a valve annulus. The catheter device may be used to navigate a subannular space below a mitral valve to facilitate positioning of an anchor delivery device.
566 Citations
117 Claims
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1. A method for advancing one or more devices into a left ventricle of a heart to contact a mitral valve annulus, the method comprising:
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advancing a steerable guide catheter into the left ventricle and around at least a portion of the mitral valve annulus;
passing a guide sheath over the steerable guide catheter;
withdrawing the steerable guide catheter out of the guide sheath; and
advancing one or more devices through the guide sheath to contact the mitral valve annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for advancing one or more devices into a left ventricle of a heart to contact a mitral valve annulus, the method comprising:
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advancing a shaped guide catheter through an aorta into the left ventricle;
passing a steerable guide catheter through the shaped guide catheter and around at least a portion of the length of the mitral valve annulus;
passing a guide sheath over the steerable guide catheter, within the shaped guide catheter;
withdrawing the steerable guide catheter out of the guide sheath; and
advancing one or more devices through the guide sheath to contact the mitral valve annulus. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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75. A method for treating a mitral valve annulus of a heart, the method comprising:
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advancing a steerable guide catheter into a left ventricle of the heart and around at least a portion of the mitral valve annulus;
passing a guide sheath over the steerable guide catheter;
withdrawing the steerable guide catheter out of the guide sheath;
advancing an anchor delivery device through the guide sheath to contact the mitral valve annulus;
delivering a plurality of coupled anchors from the anchor delivery device to secure the anchors to the mitral valve annulus; and
drawing the anchors together to circumferentially tighten the annulus. - View Dependent Claims (76)
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77. A device for facilitating placement of one or more devices in contact with a heart valve annulus, the device comprising:
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an elongate catheter body having a proximal portion and a distal portion;
at least one tensioning member coupled with the proximal portion of the catheter body and extending to the distal portion; and
at least one tensioning actuator coupled with the proximal portion and the tensioning member for applying tension to the tensioning member to deform the distal portion to allow it to conform generally to a shape of the valve annulus. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91)
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92. A system for facilitating placement of one or more devices in contact with a heart valve annulus, the system comprising:
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a shaped guide catheter having at least one curve toward a distal end for positioning the distal end in a position below the mitral valve;
a steerable guide catheter passable through the shaped guide catheter and having a steerable distal end for advancing around a length of the valve annulus below the mitral valve; and
a guide sheath passable over the steerable guide catheter through the shaped guide catheter, wherein the one or more devices are passable through the guide sheath to contact the mitral valve annulus. - View Dependent Claims (93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117)
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Specification