DR. GEORGE EUGENE CIMOCHOWSKI, MD
Radiology at 42 St, Dallas, PA

6398734, Jun 4, 2002

Aug 12, 1999

09/373445

George E. Cimochowski - Dallas PA
George W. Keilman - Woodinville WA

VascuSense, Inc. - Woodinville WA

A61B 812

600454, 600459, 600504, 623 2

A parameter indicative of the condition of a cardiac valve is determined by monitoring blood flow and/or velocity in a vessel that is coupled to the cardiac valve or in a chamber adjacent to an artificial cardiac valve. One or more ultrasonic transducers are provided either in a wall or a cuff disposed about a cardiac vessel to monitor the parameter in regard to a natural or artificial cardiac valve, or in a support sewing ring of an artificial cardiac valve. A conformal array transducer or a tilted element is used to monitor fluid flow or velocity based on the effect of the blood on ultrasonic waves produced by the transducers. The conformal array transducer comprises a plurality of elements that are excited with an input signal provided by an implantable electronics circuit, producing ultrasonic waves. Transit time or Doppler measurements are made using an appropriate number of these transducers to determine either blood volumetric flow or velocity. Various implantable electronic circuits are disclosed that enable a transducer to be driven and to receive an ultrasonic signal indicative of the status of blood flow and thus, the condition of the cardiac valve.

6585763, Jul 1, 2003

Feb 23, 1998

09/028173

George W. Keilman - Woodinville WA
George E. Cimochowski - Dallas PA

VascuSense, Inc. - Woodinville WA

A61F 206

623 142, 6048911

A system includes a first coil, a signal source and a first control module. The first control module regulates coupling between the signal source and the first coil. The system also includes an implantable device having a second coil coupled to a therapeutic transducer comprising an ultrasonic transducer. When the first coil is aligned with the second coil, the signal source is able to supply electrical power to the implantable device to enable the therapeutic transducer to operate. The control module is able to activate the therapeutic transducer under the control of a physician.

5967989, Oct 19, 1999

May 15, 1998

9/079818

George E. Cimochowski - Dallas PA
George W. Keilman - Woodinville WA

VascuSense, Inc. - Woodinville WA

A61B 800

600459

A parameter indicative of the status of fluid flow is remotely monitored in a vessel, a natural graft, or a synthetic graft. One or more transducers are provided either in a wall of a synthetic graft or adjacent to a vessel or natural graft to monitor the parameter. A conformal array transducer or a tilted element is used to monitor fluid flow or velocity through the graft or vessel based on the effect of the fluid on ultrasonic waves produced by the transducers. The conformal array transducer comprises a plurality of elements that curve around the graft or vessel and are excited with an input signal provided by an implantable electronics circuit, producing ultrasonic waves that propagate into the fluid flowing within the graft or vessel. Transit time or Doppler measurements are made using an appropriate number of these transducer to determine either fluid flow or velocity. Various implantable electronic circuits are provided that enable a selected transducer to be driven and to receive an ultrasonic signal or a pressure signal indicative of the status of fluid flow monitored by the transducer.

5967986, Oct 19, 1999

Nov 25, 1997

8/978038

George E. Cimochowski - Dallas PA
George W. Keilman - Woodinville WA

VascuSense, Inc. - Woodinville WA

A61B 502, A61B 804

600454

A stent or graft stent energized from an external power source is provided with one or more sensors to sense a parameter, producing a signal that is transmitted outside a vessel in which the stent is implanted. At least a portion of a body of the stent or an insulated electrical conductor comprises a plurality of turns that serve as an RF antenna. An expandable mesh or helical coils that form the stent body may serve as the antenna or it may comprise a separate insulated conductor. The RF antenna receives energy electromagnetically coupled to the antenna from an external (or implanted) coil and conveys a data signal corresponding to the parameter sensed by the sensor(s) on the stent or stent graft to a monitor disposed outside the patient's body. In one form of the invention, a plurality of conformal array transducers are used to produce and sense ultrasonic waves that are affected by a fluid flowing through a lumen of the stent. This transducer determines fluid flow or fluid velocity.

5807258, Sep 15, 1998

Oct 14, 1997

8/949413

George E. Cimochowski - Dallas PA
George W. Keilman - Woodinville WA

A61B 502, A61B 804

600454

A parameter indicative of the status of fluid flow is remotely monitored in a vessel, a natural graft, or a synthetic graft. One or more transducers are provided either in a wall of a synthetic graft or adjacent to a vessel or natural graft to monitor the parameter. A conformal array transducer or a tilted element is used to monitor fluid flow or velocity through the graft or vessel based on the effect of the fluid on ultrasonic waves produced by the transducers. The conformal array transducer comprises a plurality of elements that curve around the graft or vessel and are excited with an input signal provided by an implantable electronics circuit, producing ultrasonic waves that propagate into the fluid flowing within the graft or vessel. Transit time or Doppler measurements are made using an appropriate number of these transducer to determine either fluid flow or velocity. Various implantable electronic circuits are provided that enable a selected transducer to be driven and to receive an ultrasonic signal or a pressure signal indicative of the status of fluid flow monitored by the transducer.

7427265, Sep 23, 2008

Oct 24, 2000

09/695748

George W. Keilman - Woodinville WA, US
George E. Cimochowski - Dallas PA, US

CardioMetrix, Inc. - Bothell WA

A61B 5/00, A61B 5/02, A61B 5/05

600300, 600486, 600505, 600549, 600561

An apparatus includes an endoluminal implant, a RF coupling coil coupled to the endoluminal implant and a therapeutic transducer electrically coupled to the RF coupling coil and physically coupled to the endoluminal implant. The RF coupling coil supplies electrical power to the therapeutic transducer. The therapeutic transducer has a capability for delivering therapeutic energy to a lumen disposed within the endoluminal implant in response to signals coupled via the RF coupling coil.

6231516, May 15, 2001

Feb 23, 1998

9/028154

George W. Keilman - Woodinville WA
George E. Cimochowski - Dallas PA

VacuSense, Inc. - Woodinville WA

A61B 502

600485

An apparatus includes an endoluminal implant, a RF coupling coil coupled to the endoluminal implant and a therapeutic transducer electrically coupled to the RF coupling coil and physically coupled to the endoluminal implant. The RF coupling coil supplies electrical power to the therapeutic transducer. The therapeutic transducer has a capability for delivering therapeutic energy to a lumen disposed within the endoluminal implant in response to signals coupled via the RF coupling coil.