Treatments for a patient with congestive heart failure
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Accused Products
Abstract
The invention is directed to two minimally invasive therapeutic procedures, particularly for patients with congestive heart failure, and devices and systems for such procedures. One procedure involves providing a valved passageway through the patient'"'"'s left ventricular wall at the apex of the patient'"'"'s heart and advancing instruments through the valved passageway to connect the valve leaflets of the patient'"'"'s heart valve, e.g. the mitral valve, in a “Bow-Tie” configuration to prevent or minimize regurgitation through the valve. The second procedure involves advancing a pacing lead and a pacing lead implanting device through a trocar in the patient'"'"'s chest and implanting the pacing lead on an exposed epicardial region of the patient'"'"'s heart wall. The pacing lead has a penetrating electrode which is secured within the heart wall. One or both procedures may be performed on a patient with CHF.
Improved devices for these procedures include a minimally invasive grasping device having an inner lumen for advancing connecting members and other instruments through the device to the distal end thereof. Other improved devices include a pacing lead implant instrument which is releasably secured by its distal end to the exposed heart wall to facilitate penetration of the pacing lead electrode into the heart wall. Other improved instruments include a leaflet connector with an artificial cordae tendenae strand secured to an end of the leaflet connector.
56 Citations
98 Claims
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1-14. -14. (canceled)
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15. A minimally invasive system for treating a patient'"'"'s heart having heart valve regurgitation, comprising:
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a. a valve configured to be secured within a passageway formed through the patient'"'"'s heart wall to provide instrument passageway into a chamber of the patient'"'"'s heart defined in part by the heart wall through which the passageway is formed; b. a tissue grasping device configured to extend through the valve secured within the passageway into the chamber of the patient'"'"'s heart and having at least two grasping members configured to grasp valve leaflets; and c. a tissue connecting member to connect free edges of valve leaflets.
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16-54. -54. (canceled)
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55. A minimally invasive system for treating a patient'"'"'s mitral valve, comprising:
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a. a valve which is configured to be secured within a passageway formed through a wall of the patient s heart defining in part a heart chamber and which allows passage of an instrument through the valve element into a chamber of the patient'"'"'s heart defined in part by the heart wall without significant blood loss; and b. a tissue grasping device which is configured to extend through the valve secured within the passageway in the patient'"'"'s heart wall configured to grasp a free edge of at least one valve leaflet; and c. an artificial chordae tendineae which has one end which is connectable to the free edge of at least one valve leaflet and one end which is secured to the heart wall through which the valve extends. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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73. A method for treating a patient'"'"'s mitral valve having a valve leaflet, comprising:
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a. advancing an artificial chordae tendineae having first and second ends into a chamber defined in part by a ventricular wall of the patient'"'"'s heart; b. securing the first end of the artificial chordae tendineae to a free edge of the valve leaflet from within the patient'"'"'s heart; and c. securing the second end of the artificial chordae tendenae to the ventricular wall which defines in part a heart chamber. - View Dependent Claims (74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85)
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86. A method for treating a patient'"'"'s mitral valve having a valve leaflet with a torn or damaged chordae tendineae, comprising:
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a. advancing an artificial chordae tendineae having first and second ends into a chamber defined in part by a ventricular wall of the patient'"'"'s heart; b. securing the first end of the artificial chordae tendineae to a free edge of the valve leaflet from within the patient'"'"'s heart; and c. securing the second end of the artificial chordae tendenae within the heart chamber oriented with respect to the papillary muscle. - View Dependent Claims (87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98)
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Specification