Devices and methods for visually indicating the alignment of a transcutaneous energy transfer device over an implanted medical device
First Claim
1. A charger for an implanted medical device, the charger comprising:
- a power supply;
a coil assembly electrically coupled to the power supply, the coil assembly including a primary coil, a first sense coil, and a second sense coil, wherein the first sense coil is located over, and aligned with, the second sense coil;
electrical circuitry configured to;
measure an electrical characteristic of the coil assembly; and
determine, based on the measured electrical characteristic, a relative disposition between the coil assembly and the implanted medical device; and
a screen configured to visually illustrate the relative disposition between the coil assembly and the implanted medical device.
9 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure involves a charging system for charging an implanted medical system. The charging device includes a replenishable power supply. The charging device includes a coil assembly electrically coupled to the power supply. The coil assembly includes a primary coil and a plurality of sense coils positioned proximate to the primary coil. The charging device includes electrical circuitry operable to: measure an electrical parameter of the coil assembly; and determine a position of the coil assembly relative to a position of the implanted medical device based on the measured electrical parameter. The charging device includes a visual communications interface operable to: receive an input from the electrical circuitry; and visually display on a screen the position of the coil assembly relative to the position of the implanted medical device based on the input received from the electrical circuitry.
38 Citations
20 Claims
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1. A charger for an implanted medical device, the charger comprising:
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a power supply; a coil assembly electrically coupled to the power supply, the coil assembly including a primary coil, a first sense coil, and a second sense coil, wherein the first sense coil is located over, and aligned with, the second sense coil; electrical circuitry configured to; measure an electrical characteristic of the coil assembly; and determine, based on the measured electrical characteristic, a relative disposition between the coil assembly and the implanted medical device; and a screen configured to visually illustrate the relative disposition between the coil assembly and the implanted medical device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical charging system, comprising:
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an implantable medical device; and a charger for charging the implantable medical device, wherein the charger includes a coil assembly, circuitry that is electrically coupled to the coil assembly, and a communications interface, wherein; the coil assembly includes; a first position-sensing coil; a second position-sensing coil; and a primary coil disposed over the first and second position-sensing coils; the circuitry is configured to; measure an electrical parameter of at least one of the first and second position-sensing coils; and determine, based on the measured electrical parameter, a locational offset between a first location of the coil assembly and a second location of the implantable medical device; and the communications interface is configured to visually display the first location of the coil assembly and the second location of the implantable medical device simultaneously and relative to each another. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for charging an implanted medical device, comprising:
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providing a coil assembly, the coil assembly including a primary coil, a first sense coil, and a second sense coil; measuring a first electrical parameter at the first sense coil; measuring a second electrical parameter at the second sense coil; calculating, based on the measured first electrical parameter, a first positional displacement along a first axis between the implanted medical device and the coil assembly; calculating, based on the measured second electrical parameter, a second positional displacement along a second axis between the implanted medical device and the coil assembly; and displaying, on a screen, a first image representing the coil assembly and a second image representing the implanted medical device, wherein a distance separating the first and second images on the screen is a function of the first positional displacement and the second positional displacement. - View Dependent Claims (18, 19, 20)
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Specification