Title:
植え込み型医療器具システムにおける回転磁界誘導テレメトリ及び電力伝送
Document Type and Number:
Japanese Patent JP5183742
Kind Code:
B2
Abstract:
An improved implantable medical device system having dual coils in one of the devices in the system is disclosed. The dual coils are used preferably in an external device such as an external controller or an external charger. The dual coils are wrapped around axes that are preferably orthogonal, although other non-zero angles could be used as well. When used to transmit, the two coils are driven (for example, with FSK-modulated data when the transmitting data) out of phase, preferably at 90 degrees out of phase. This produces a magnetic field which rotates, and which reduces nulls in the coupling between the external device and the receiving coil within the implanted device. Moreover, implementation of the dual coils to transmit requires no change in the receiver circuitry of the implanted device. Should the device with dual coils also receive transmissions from the other device (e.g., the implanted device), the two coils are used in conjunction with optional receiver circuitry which likewise phase shifts the received modulated data signals from each coil and presents their sum to typical demodulation circuitry.
Inventors:
Stouffer Thomas Warren
Fridin Rev
Agasian daniel
Fridin Rev
Agasian daniel
Application Number:
JP2010523022A
Publication Date:
April 17, 2013
Filing Date:
August 12, 2008
Export Citation:
Assignee:
Boston Scientific Neuromodulation Corporation
International Classes:
A61N1/40; A61F9/007; A61F11/00; A61N1/36; A61N1/365; A61N1/375; A61N1/378; A61N1/39; H04B5/02; H04B13/00
Domestic Patent References:
| JP2007505653A | ||||
| JP2000251030A | ||||
| JP2005531371A | ||||
| JP10508446A |
Attorney, Agent or Firm:
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Makoto Watanabe
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Makoto Watanabe