Devices and methods of treating or ameliorating diastolic heart failure through pulmonary valve intervention
First Claim
1. A method of treating a patient with a diastolic heart failure by restricting blood flow from the right ventricle to the pulmonary artery comprising:
- providing a delivery system and an implantable device, wherein the delivery system comprises a proximal end, a distal end, and an axial lumen,wherein the implantable device comprises a distal end, a proximal end, and a hollow body portion, andwherein the implantable device has a first elongated profile when slidably disposed within the axial lumen of the delivery system, and a second expanded profile when the device is outside of the delivery system,advancing the delivery system and the implantable device in its first elongated profile at or near the pulmonary valve,deploying the distal end of the device at a location distal to the pulmonary valve annulus, the proximal end of the device at or near the pulmonary valve annulus, and the hollow body portion of the device through the pulmonary valve, andallowing blood back-flow from the pulmonary artery to the right ventricle.
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Accused Products
Abstract
The present teachings provide a device and methods of making and use thereof. Specifically, one aspect of the present teachings provides a device for restricting blood flow entering the lung after each right bean systole. Certain embodiments of the present teachings provide a device that prevents a complete closure of the pulmonary valve leaflets so that a certain amount of blood is allowed to flow from the pulmonary artery to the right ventricle at the end of a right ventricle systole. Other embodiments of the present teachings provide a device that restricts the amount of blood outflowing from the right ventricle to the pulmonary artery. In addition, the present teachings also provide a delivery system for implanting such a device approximately to or at the pulmonary valve.
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Citations
13 Claims
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1. A method of treating a patient with a diastolic heart failure by restricting blood flow from the right ventricle to the pulmonary artery comprising:
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providing a delivery system and an implantable device, wherein the delivery system comprises a proximal end, a distal end, and an axial lumen, wherein the implantable device comprises a distal end, a proximal end, and a hollow body portion, and wherein the implantable device has a first elongated profile when slidably disposed within the axial lumen of the delivery system, and a second expanded profile when the device is outside of the delivery system, advancing the delivery system and the implantable device in its first elongated profile at or near the pulmonary valve, deploying the distal end of the device at a location distal to the pulmonary valve annulus, the proximal end of the device at or near the pulmonary valve annulus, and the hollow body portion of the device through the pulmonary valve, and allowing blood back-flow from the pulmonary artery to the right ventricle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of treating a patient with diastolic heart failures by restricting blood flow from the right ventricle to the pulmonary artery comprising:
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providing an implantable medical device having a hollowed body portion with a distal end and a proximal end, wherein the device has an elongated delivery configuration and an expanded deployed configuration, advancing the implantable device in its elongated delivery profile at or near the pulmonary valve, deploying the distal end of the device at a location distal to the pulmonary valve annulus, the proximal end of the device at or near the pulmonary valve annulus, and the hollowed body portion of the device through the pulmonary valve, and allowing blood back-flow from the pulmonary artery to the right ventricle. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification