Mechanical means for controlling blood pressure
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Accused Products
Abstract
Making the volume of the arterial system increase elastically with blood pressure reduces high systolic blood pressure peaks. This volumetric elasticity is achieved by the action of a spring controlling the aortic cross-section thus controlling the aortic volume. The spring can be implanted percutaneously. The device is powered by the blood pressure itself and requires no other energy source or control circuits. The device can have an open structure or a sealed-wall structure, the latter also serve to protect against aortic aneurism. Non-linear volumetric elasticity can be used to assist the heart.
74 Citations
55 Claims
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1-12. -12. (canceled)
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13. A passive device to control blood pressure, comprising:
at least a first member sized to be received within an inside of a human aorta and to physically engage the inside of the human aorta such that the first member will physically deform a first portion of the human aorta to have a smaller cross sectional area when the first portion of the human aorta is subjected to a diastolic pressure than the first portion of the human aorta would otherwise have if not deformed by the first member. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method of forming a passive device to control blood pressure, the method comprising:
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providing a first member; and forming the first member into a size and shape to physically engage an inside of the human aorta such that a first portion of the human aorta will be physically deformed to have a relatively smaller cross sectional area when the first portion of the human aorta is subjected to a diastolic pressure than the human aorta would otherwise have. - View Dependent Claims (33, 34, 35, 36, 37, 38)
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39. A passive device to control blood pressure, comprising:
means for physically engaging an inside of the human artery such that a first portion of the human artery will be physically deformed to have a relatively smaller cross sectional area when the first portion of the human artery is subjected to a diastolic pressure than the human artery would otherwise have. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A method employing a passive device, comprising:
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positioning a catheter bearing a first member in an inside of a human artery; and implanting the first member sized to be received within the inside of the human artery and to physically engage the inside of the human artery such that the first member will physically deform a first portion of the human artery to have a first cross sectional area when the first portion of the human artery is subjected to a diastolic pressure, that is smaller than the first portion of the human artery would otherwise have. - View Dependent Claims (50, 51, 52, 53, 54, 55)
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Specification