John H Petre2587 Wellington Ave, Cleveland, OH 44118

4444198, Apr 24, 1984

Dec 21, 1981

6/332737

John H. Petre - Cleveland Heights OH

A61B 502

128673

A sterile intra-circulatory monitoring system utilizing an indwelling catheter with fluid under pressure being forced through a fluid line to the catheter. The system includes a normally stagnant pressure chamber to which a transducer is connected. The contents of the chamber are periodically flushed back into the fluid line by utilizing a flush valve and a venturi unit. The venturi unit may be an integral part of the flush valve or separate component. With the present invention a closed loop system is utilized which does not compromise the sterility of the system or the environment.

5827192, Oct 27, 1998

Aug 21, 1996

8/701177

Balakrishnan Gopakumaran - Cleveland OH
Peter K. Osborn - West Allis WI
John H. Petre - Cleveland Heights OH

Cleveland Clinic Foundation - Cleveland OH
Marquette Medical Systems - Milwaukee WI

A61B 502

600481

An in vivo method of determining the conductivity of a liquid such as human blood, including the steps of determining a location in a ventricle of a patient's heart at which blood conductivity may be measured effectively, positioning a catheter having a plurality of spaced electrodes in the ventricle such that at least a pair of adjacent electrodes are positioned at the location, applying a current of known magnitude to the adjacent electrodes, measuring the voltage between the adjacent electrodes, and determining the conductivity of the patient's blood from the known current and measured voltage.

5842998, Dec 1, 1998

Apr 16, 1997

8/842640

Balakrishnan Gopakumaran - Cleveland OH
Peter K. Osborn - West Allis WI
John H. Petre - Cleveland Heights OH

Cleveland Clinic Foundation - Cleveland OH
Marquette Medical Systems - Milwaukee WI

A61B 502

600547

An in vivo apparatus for determining the absolute conductivity of a liquid such as human blood, including the steps of determining a location in a ventricle of a patient's heart at which blood conductivity may be measured effectively, positioning a catheter having a plurality of spaced electrodes in the ventricle such that at least a pair of adjacent electrodes are positioned at the location, applying a current of known magnitude to the adjacent electrodes, measuring the voltage between the adjacent electrodes, and determining the conductivity of the patient's blood from the known current and measured voltage.

5000190, Mar 19, 1991

Jun 20, 1989

7/369529

John H. Petre - Cleveland Heights OH

The Cleveland Clinic Foundation - Cleveland OH

A61B 502

128713

A diagnostic catheter for use in measuring cardiac output in the right ventricular chamber of a heart includes a catheter body having an outer periphery and a distal section terminating in a distal end and a proximal section terminating in a proximal end. A plurality of spaced electrodes are secured to the body outer periphery along the body distal section. A plurality of electrical leads extend in the catheter body from a respective one of the electrodes to the proximal end of the catheter body. An elongated rigid member is provided for stiffening a portion of the catheter body. One end of the rigid member is located adjacent a proximal most one of a plurality of electrodes. The rigid member so locates the plurality of electrodes as to space them away from endocardial tissue. The catheter is used with a cardiac output monitoring system. Signals from the catheter are acquired by a signal conditioning and catheter control unit and, are thereafter fed to a microcomputer.

4901967, Feb 20, 1990

Sep 29, 1988

7/251191

John H. Petre - Cleveland Heights OH

The Cleveland Clinic Foundation - Cleveland OH

A61B 1900

248327

A selectively transportable equipment support system is provided for operative association with an invalid transport vehicle such as a hospital bed. The system includes a transport bracket for selective secured association with a hospital bed or a service column. Various patient care items are secured to the transport bracket. Such items preferably comprise infusion pumps with associated fluid bags that are typically transported with the patients and employed in surgical rooms or intensive care units. The transport bracket includes a pivot post for reception in a service column latching assembly which allows pivotable movement of the transport bracket when it is secured to a service column support arm. The service columns are pneumatically powered for powered lifting and positioning of the transport bracket.

4795122, Jan 3, 1989

Jul 15, 1986

6/886207

John H. Petre - Cleveland Heights OH

Cleveland Clinic Foundation - Cleveland OH

F16M 1300

248317

A selectively transportable equipment support system is provided for operative association with an invalid transport vehicle such as a hospital bed. The system includes a transport bracket for selective secured association with a hospital bed or a service column. Various patient care items are secured to the transport bracket. Such items preferably comprise infusion pumps with associated fluid bags that are typically transported with the patients and employed in surgical rooms or intensive care units. The transport bracket includes a pivot post for reception in a service column latching assembly which allows pivotable movement of the transport bracket when it is secured to a service column support arm. The service columns are pneumatically powered for powered lifting and positioning of the transport bracket.

5882312, Mar 16, 1999

Aug 27, 1997

8/920605

Balakrishnan Gopakumaran - Shaker Heights OH
John H. Petre - Cleveland Heights OH
Peter K. Osborn - West Allis WI
Paul Schluter - Whitefish Bay WI

Cleveland Clinic Foundation - Cleveland OH
Marquette Medical Systems, Inc. - Milwaukee WI

A61B 500295

600526

A method of determining cardiac volume including the steps of positioning a catheter output including the steps of positioning a catheter in a blood-filled chamber of a patient's heart. The catheter comprises an elongated body having a distal end, a proximal end and a plurality of spaced apart electrodes arrayed on the outer surface of the catheter. The electrodes are spaced apart a predetermined distance from each other to define a distal electrode, a proximal electrode and a plurality of pairs of adjacent electrodes between the distal and proximal electrodes to define volume segments within the chamber. The method includes the steps of providing a constant alternating current If1 at a first frequency f1 to the distal and proximal electrodes, measuring the potential between pairs of electrodes located between the distal and proximal electrodes while the distal and proximal electrodes are energized with the current If1, providing a constant alternating current If2 at a second frequency f2 to the distal and proximal electrodes, measuring the potential between pairs of electrodes located between the distal and proximal electrodes while the distal and proximal electrodes are energized with the current If2, determining the corrected volume of each volume segment corrected for current leakage from the measured voltages and the fractional change in tissue conductance due to changes in the frequency of the applied current.

4879798, Nov 14, 1989

Sep 29, 1988

7/251189

John H. Petre - Cleveland Heights OH

The Cleveland Clinic Foundation - Cleveland OH

B23P 1100
B23P 1904

29434

A method for selectively transportable equipment support system is provided for operative association with an invalid transport vehicle such as a hospital bed. The system includes a transport bracket for selective secured association with a hospital bed or a service column. Various patient care items are secured to the transport bracket. Such items preferably comprise infusion pumps with associated fluid bags that are typically transported with the patients and employed in surgical rooms or intensive care units. The transport bracket includes a pivot post for reception in a service column latching assembly which allows pivotable movement of the transport bracket when it is secured to a service column support arm. The service columns are pneumatically powered for powered lifting and positioning of the transport bracket.