James L Malaney

US Patent:

6477425, Nov 5, 2002

Filed:

Dec 23, 1999

Appl. No.:

09/472071

Inventors:

Matthew Nowick - Iowa City IA
James Malaney - Iowa City IA

Assignee:

MMC/GATX Partnership No. 1 - Lafayette CA

International Classification:

A61N 102

US Classification:

607 61, 607 60

Abstract:

An external transmitter assembly for powering and controlling an implanted medical device, wherein a battery drives first and second power supplies that energize a modulation circuit and an amplifier, respectively, to apply programmed current pulses to a transmitting antenna. The second power supply is output limited and couples through holdup capacitors and a filter network to the amplifier, allowing momentary high current operation without affecting oscillator or modulation portions of the circuit. The transmitting antenna has a diameter greater than that of the implanted receiving antenna, and is adhered to the skin of the patient over the implanted device and is tuned by a trimmer element to resonate at the resonant frequency of the receiver and enhance energy coupling between the two coils A local oscillator operating at high frequency is divided down to form a clock, and the pulse-defining modulation circuit includes an FPGA that controls pulse shape and timing regimens for a defined neurologic treatment. The two power supplies have high switching frequencies that are different from each other and from the main transmitter operating frequency to minimize aliasing effects between the units. In addition an auto power-down circuit connects the battery to the power supplies.

US Patent:

6493588, Dec 10, 2002

Filed:

Dec 17, 1998

Appl. No.:

09/213558

Inventors:

James Malaney - Iowa City IA
Robert A. Morris - Solon IA
Marshall A. Stoller - San Francisco CA
Curtis A. Gleason - Palo Alto CA

Assignee:

MMC/GATX Partnership No. 1 - Lafayette CA

International Classification:

A61N 134

US Classification:

607 46, 607 72

Abstract:

An electro-nerve stimulator system includes a pulse generator for generating current pulses with a transcutaneous patch and percutaneous needle for delivering current pulses to selected stimulation sites. The stimulator is a small battery operated external device that allows adjustment of stimulation levels and interfaces, via a connector, to the trans-percutaneous cable. The transcutaneous electrode is attached to the skin distal from the desired stimulated nerve site. A percutaneous needle is inserted close to the internal nerve site. Stimulation current pulses are designed to flow between the transcutaneous electrode and the internal percutaneous needle. The field generated at the needle site causes the nerve to fire.

US Patent:

6744051, Jun 1, 2004

Filed:

Nov 16, 2001

Appl. No.:

09/993424

Inventors:

Fyodor I. Maydanich - Wauwatosa WI
James Malaney - Pewaukee WI

Assignee:

GE Medical Systems Global Technology Company LLC - Waukesha WI

International Classification:

H01B 1106

US Classification:

25036303, 174 36

Abstract:

A high density of electrical interconnection together with well controlled electrical transmission characteristics, low emissivity from the cable and low susceptibility to external electromagnetic interference are obtained in a PET machine with an interconnection harness formed of a ribbon cable with an inner and outer shield. The inner shield together with alternate conductors of the ribbon cable provide a signal return and the outer shield provides an earth ground reducing the susceptibility of the conductors to external electrical noise and reducing emissions from the cable.

US Patent:

20020183804, Dec 5, 2002

Filed:

Jul 16, 2002

Appl. No.:

10/195957

Inventors:

James Malaney - Iowa City IA, US
Robert Morris - Solon IA, US
Marshall Stoller - San Francisco CA, US
Curtis Gleason - Palo Alto CA, US

International Classification:

A61N001/18

US Classification:

607/048000

Abstract:

An electro-nerve stimulator system includes a pulse generator for generating current pulses with a transcutaneous patch and percutaneous needle for delivering current pulses to selected stimulation sites. The stimulator is a small battery operated external device that allows adjustment of stimulation levels and interfaces, via a connector, to the trans-percutaneous cable. The transcutaneous electrode is attached to the skin distal from the desired stimulated nerve site. A percutaneous needle is inserted close to the internal nerve site. Stimulation current pulses are designed to flow between the transcutaneous electrode and the internal percutaneous needle. The field generated at the needle site causes the nerve to fire.

US Patent:

20020188333, Dec 12, 2002

Filed:

Aug 6, 2002

Appl. No.:

10/213213

Inventors:

Matthew Nowick - Iowa City IA, US
James Malaney - Iowa City IA, US

International Classification:

A61N001/08

US Classification:

607/061000

Abstract:

An external transmitter assembly for powering and controlling an implanted medical device, wherein a battery drives first and second power supplies that energize a modulation circuit and an amplifier, respectively, to apply programmed current pulses to a transmitting antenna. The second power supply is output limited and couples through holdup capacitors and a filter network to the amplifier, allowing momentary high current operation without affecting oscillator or modulation portions of the circuit. The transmitting antenna has a diameter greater than that of the implanted receiving antenna, and is adhered to the skin of the patient over the implanted device and is tuned by a trimmer element to resonate at the resonant frequency of the receiver and enhance energy coupling between the two coils A local oscillator operating at high frequency is divided down to form a clock, and the pulse-defining modulation circuit includes an FPGA that controls pulse shape and timing regimens for a defined neurologic treatment. The two power supplies have high switching frequencies that are different from each other and from the main transmitter operating frequency to minimize aliasing effects between the units. In addition an auto power-down circuit connects the battery to the power supplies. Upon user actuation of the main power switch, that circuit connects power to boot the FPGA, which then provides a switching enable gate signal; the auto circuit disconnects the battery when the state of the FPGA signal indicates a treatment cycle is over. The auto power down circuit draws little power, thus assuring that battery life is unimpaired if the user forgets to turn off the transmitter, or leaves it in a shut down state for extended periods of time.

US Patent:

20030078642, Apr 24, 2003

Filed:

Feb 7, 2002

Appl. No.:

10/071197

Inventors:

James Malaney - Iowa City IA, US
Randy Nelson - Pine Springs MN, US

International Classification:

A61N001/05

US Classification:

607/115000

Abstract:

Improved implantable devices for electro-acupuncture are described. The devices include a flexible conductor electrode, an anchor fixation for preventing motion of the device in tissue after implantation, and/or a sealed, liquid-impermeable housing.

US Patent:

20040144560, Jul 29, 2004

Filed:

Jan 15, 2004

Appl. No.:

10/757881

Inventors:

Fyodor Maydanich - Wauwatosa WI, US
James Malaney - Pewaukee WI, US

International Classification:

H01B007/08

US Classification:

174/11700F

Abstract:

A high density of electrical interconnection together with well controlled electrical transmission characteristics, low emissivity from the cable and low susceptibility to external electromagnetic interference are obtained in a PET machine with an interconnection harness formed of a ribbon cable with an inner and outer shield. The inner shield together with alternate conductors of the ribbon cable provide a signal return and the outer shield provides an earth ground reducing the susceptibility of the conductors to external electrical noise and reducing emissions from the cable.

US Patent:

20040169146, Sep 2, 2004

Filed:

Mar 4, 2004

Appl. No.:

10/793519

Inventors:

Fyodor Maydanich - Wauwatosa WI, US
James Malaney - Pewaukee WI, US

International Classification:

H01B011/06

US Classification:

250/363030, 174/036000

Abstract:

A high density of electrical interconnection together with well controlled electrical transmission characteristics, low emissivity from the cable and low susceptibility to external electromagnetic interference are obtained in a PET machine with an interconnection harness formed of a ribbon cable with an inner and outer shield. The inner shield together with alternate conductors of the ribbon cable provide a signal return and the outer shield provides an earth ground reducing the susceptibility of the conductors to external electrical noise and reducing emissions from the cable.