Simon Lewandowski

US Patent:

7037268, May 2, 2006

Filed:

Feb 29, 2000

Appl. No.:

09/914682

Inventors:

Michael Z. Sleva - Charlotte NC, US
Allen Eberhardt - Raleigh NC, US
Cal T. Swanson - Apex NC, US
Richard Triolo - Raleigh NC, US
Simon J. Lewandowski - Raleigh NC, US

Assignee:

MedAcoustics, Inc. - Melbourne FL

International Classification:

A61B 8/14

US Classification:

600459, 600437, 600466, 73662, 3408556

Abstract:

A low profile acoustic array () is configured to selectively respond to shear waves while rejecting compression wave energy in the frequency range of interest. One sensor array is configured as a linear strip with a frame segment having at least one longitudinally extending rail and a plurality of sensor elements () extending therefrom. These sensor elements have a resilient core and opposing PDVF outer layers configured with opposing polarities onto the core. The linear strip array also includes a pair of separate electrical signal transmission paths. The transmission lines can include a series of undulations formed thereon to help minimize undesired mechanical crossover between sensors. A carrier member can be configured to be detachably releasable carries the discrete sensors to maintain the positional alignment until they are secured to a patient.

US Patent:

20050251047, Nov 10, 2005

Filed:

Jun 7, 2005

Appl. No.:

11/146471

Inventors:

Michael Sleva - Charlotte NC, US
Allen Eberhardt - Raleigh NC, US
Cal Swanson - Apex NC, US
Richard Triolo - Raleigh NC, US
Simon Lewandowski - Raleigh NC, US

International Classification:

A61B008/14

US Classification:

600459000

Abstract:

Methods for fabricating strip sensor arrays with contact pads and frame segments include PVDF layers. Methods for detecting acoustic signals, arranging flexible sensor arrays and reducing electrical/mechanical interference are also described.

US Patent:

62612379, Jul 17, 2001

Filed:

Aug 20, 1998

Appl. No.:

9/136933

Inventors:

Cal T. Swanson - Apex NC
Simon J. Lewandowski - Raleigh NC
Charles E. Chassaing - Raleigh NC
Michael Z. Sleva - Charlotte NC

Assignee:

MedAcoustics, Inc. - Raleigh NC

International Classification:

A61B 704

US Classification:

600527

Abstract:

A thin film piezoelectric polymer acoustic sensor for the passive detection of heart and blood flow sounds is described. Sensors may have initially slack film components which are tented by the mass of a housing when a sensor is positioned on acoustic medium. Enhanced sensor performance is provided by accommodation of the sensor spring constant to the spring constant of human flesh. Sensor performance may be enhanced by a combination of physical parameter ranges. A plurality of sensors may compose a linear array or an array aperture.