Resonator for medical device
First Claim
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1. A resonator device for implanting in a body, comprising:
- a first induction coil with a lumen having a deployed diameter;
a second induction coil having a wound spiral of two or more turns positioned at least partially within the lumen of the first induction coil;
a capacitor coupled in series to the induction coil that interacts with a radio frequency field to reduce signal loss in images obtained in a magnetic resonance imaging system;
a non-conductive sheath coupled to the first induction coil and the capacitor; and
a stent positioned at least partially between the first induction coil and the second induction coil.
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Abstract
A resonator device for medical device is provided. The resonator device includes a helical structure and a capacitor structure. The resonator device can be used in conjunction with a medical device, including a stent.
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Citations
32 Claims
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1. A resonator device for implanting in a body, comprising:
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a first induction coil with a lumen having a deployed diameter; a second induction coil having a wound spiral of two or more turns positioned at least partially within the lumen of the first induction coil; a capacitor coupled in series to the induction coil that interacts with a radio frequency field to reduce signal loss in images obtained in a magnetic resonance imaging system; a non-conductive sheath coupled to the first induction coil and the capacitor; and a stent positioned at least partially between the first induction coil and the second induction coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system, comprising:
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a stent having structural members defining a lumen, an outer surface opposite the lumen and openings between the structural members; and a resonator device having; a first induction coil that includes a wound spiral of a conductor that defines a coil lumen; a second induction coil having a wound spiral of two or more turns positioned at least partially within the lumen of the first induction coil; a capacitor coupled in series to the second induction coil that interacts with a radio frequency field to reduce signal loss in images obtained in a magnetic resonance imaging system; and a non-conductive sheath that electrically insulates the first induction coil from the stent, where the stent is positioned at least partially between the first induction coil and the second induction coil. - View Dependent Claims (20, 21, 22, 23)
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24. A system, comprising:
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a resonator device having; a first induction coil having a wound spiral of two or more turns of a conductor that define a coil lumen; a second induction coil having a wound spiral of two or more turns positioned at least partially within the coil lumen of the first induction coil; and a capacitor coupled in series with at least one of the first induction coil and the second induction coil; and a stent positioned at least partially between the first induction coil and the second induction coil. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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Specification