Apparatus, System, and Method for Transcutaneously Transferring Energy
First Claim
1. A system for transcutaneously transferring an amount of energy, the system comprising:
- a knee orthopaedic prosthesis including a tibial tray having a platform and a stem extending downwardly from the platform to be inserted into a tibia of a patient;
a bobbin secured to a distal end of the stem of the knee orthopaedic prosthesis, the bobbin being external from the stem and formed from a non-magnetic material;
a secondary coil wound around the bobbin and having a resonant frequency; and
a primary coil wound around a portion of a “
C”
-shaped core, the primary coil having a resonant frequency matched to the resonant frequency of the secondary coil to transcutaneously transfer energy to the tibial tray via the secondary coil.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for transcutaneously transferring an amount of energy to an implantable orthopaedic device includes a primary coil. The primary coil has a resonant frequency matched to a resonant frequency of a secondary coil, which may form part of the implantable orthopaedic device. The primary coil may have an aperture configured to receive a portion of a patient'"'"'s body or may include a substantially “C”-shaped core. A power circuit may be coupled with the primary coil to provide power to the coil. The apparatus may also include a wireless receiver, a measuring device, and/or a display.
-
Citations
20 Claims
-
1. A system for transcutaneously transferring an amount of energy, the system comprising:
-
a knee orthopaedic prosthesis including a tibial tray having a platform and a stem extending downwardly from the platform to be inserted into a tibia of a patient; a bobbin secured to a distal end of the stem of the knee orthopaedic prosthesis, the bobbin being external from the stem and formed from a non-magnetic material; a secondary coil wound around the bobbin and having a resonant frequency; and a primary coil wound around a portion of a “
C”
-shaped core, the primary coil having a resonant frequency matched to the resonant frequency of the secondary coil to transcutaneously transfer energy to the tibial tray via the secondary coil. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A system for transcutaneously transferring an amount of energy, the system comprising:
-
a tibial tray and a hand-held device to transcutaneously transfer the amount of energy to the tibial tray, wherein the tibial tray includes a platform, a stem extending downwardly from the platform, a bobbin secured to a distal end of the stem, a secondary coil wound around the bobbin and having a resonant frequency, and an electrical circuit electrically coupled to the secondary coil; and the hand-held device includes a primary coil to inductively power the secondary coil of the tibial tray, and an adjustable tuning capacitor coupled to the primary coil to permit adjusting a resonant frequency of the primary coil to match to the resonant frequency of the secondary coil of the tibial tray. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A hand-held device for transcutaneously transferring an amount of energy to a tibial tray implanted in a patient, the system comprising:
-
a primary coil to inductively transfer energy to a secondary coil of the tibial tray implanted in the patient, the primary coil wound around a portion of a “
C”
-shaped core, andan adjustable tuning capacitor coupled to the primary coil to permit adjusting a resonant frequency of the primary coil to match to a resonant frequency of the secondary coil of the tibial tray implanted in the patient. - View Dependent Claims (20)
-
Specification