MARK HUBELBANK
Pilots at Maynard Rd, North Sudbury, MA

2004021, Oct 28, 2004

Apr 28, 2003

10/424679

Mark Hubelbank - Sudbury MA, US

A61B005/0402

600/509000

A portable machine for recording electrocardiographic signals from a patient, the machine having a recording device for collecting electrocardiographic signals from a patient, the recording device further including a removable memory device for storing the electrocardiographic signals, a remote programming device including a remote connection with said recording device for wireless communication therewith, and patient lead wires with electrodes constructed and arranged to attach to the skin of the patient to furnish the electrocardiographic signals to said recording device.

6668182, Dec 23, 2003

Jan 10, 2002

10/044135

Mark Hubelbank - Sudbury MA

Northeast Monitoring - Sudbury MA

A61B 500

600323, 600336

In one aspect, the invention is a method for processing pulse oxymetry data signals. The method includes recording pulse oxymetry data signals. The pulse oxymetry data signals have a plurality of oxymetry waveforms. The method also includes determining a correlation coefficient between sequential oxymetry waveforms and identifying a valid pulse oxymetry waveform.

4920489, Apr 24, 1990

Aug 14, 1987

7/085879

Mark Hubelbank - Sudbury MA
David Shadmon - Westbury MA

CardioData Inc. - Northboro MA

G06F 1542

36441306

A method and apparatus for digitally storing episodic signals, such as, electrocardiogram signals is disclosed. In a preferred embodiment, the apparatus includes, for each signal channel, an input amplifier, an analog-to-digital converter, and a double data buffer. The incoming signal on each channel is converted to a multibit digital number a fixed sampling rate. Each multibit digital number is stored in a location in the double data buffer. When a fixed amount of data is stored in the buffer, a processor examines the data to determine the periods during which the signal is undergoing the most rapid rate of change. For these periods, both an indicator of the period, and a first number of data samples per unit time is stored in a bulk solid state memory. Preferably, the data stored is a number relating to the difference between the value of the sample and a number related to the value of the last sample. For other periods, having rates of data change high, but not as high as those of the first period, a smaller number of samples per unit time is stored.

5197479, Mar 30, 1993

May 13, 1991

7/699483

Mark Hubelbank - Sudbury MA
David Shadmon - Brookline MA
Mark J. Leverault - Derry NH

Mortara Instrument - Milwaukee WI

A61B 504

128696

An impedance measurement system for electrocardiographic recorders which allows measurement of the electrode channel impedance without the need for a separate piece of equipment. The impedance measurement system, which is an integral part of the recorder, applies complementary oscillating currents having short transition times to an electrode channel defined by a pair of electrode leads, a pair of electrodes and the patient tissues. The analog current signals flowing through the electrode channel create a voltage across the electrode channel which is amplified and applied to a dual range filtering stage. The low range section of the dual range filtering stage generates a time-dependent signal which causes the output of the low range filtering circuit to produce a signal applied to the timing input of a microprocessor. The microprocessor calculates the time elapsed between each transition of the oscillating current signals and the occurrence of a signal at the output of the low range filtering circuitry. From that elapsed time, the microprocessor calculates the impedance of the electrode channel being monitored.

4170227, Oct 9, 1979

Jun 22, 1978

5/917877

Charles L. Feldman - Sudbury MA
Mark Hubelbank - Sudbury MA

Electronics for Medicine, Inc. - White Plains NY

A61N 504

128704

In an electrocardiographic system there is a multielement electrode at two skin locations for providing an ECG signal of negligible magnitude between elements because of the close spacing while the pair of elements are sufficiently separated so that the motion of one element is at least partially independent of the motion of the other. Parallel ECG signals are obtained from different elements of two multielement electrodes. The difference between the signals is detected by logical circuitry to produce a signal indicating baseline shift.

6125296, Sep 26, 2000

Oct 16, 1998

9/173811

Mark Hubelbank - Sudbury MA

Northeast Monitoring Inc. - Sudbury MA

A61B 50404

600513

A portable machine records electrocardiographic signals and oxygen saturation signals in a removable memory device provided by an oxygen saturation sensor attached to a patient and patient lead wires with electrodes attached to the patient.

4112930, Sep 12, 1978

Dec 27, 1976

5/754538

Charles L. Feldman - Sudbury MA
Mark Hubelbank - Sudbury MA

Electronics for Medicine, Inc. - Pleasantville NY

A61B 504

128 206R

In an electrocardiographic system there is a multielement electrode at each skin location for providing an ECG signal of negligible magnitude between elements because of the close spacing while the pair of elements are sufficiently separated so that the motion of one element is at least partially independent of the motion of the other; thus, events causing a baseline shift will also cause a difference in potential between the two elements of a multielement electrode. That difference is detected by logical circuitry to produce a signal indicating baseline shift.

2003005, Mar 13, 2003

Sep 11, 2001

09/952886

Mark Hubelbank - Sudbury MA, US
Enrique Malaret - Plymouth MN, US
Bruce Gunderson - Plymouth MN, US
Walter Olson - North Oaks MN, US
James Ericksen - Roseville MN, US
Kevin Ousdigian - St. Paul MN, US
Bradley Stone - Centerville OH, US
Vincent Kapral - Campbell CA, US

A61N001/08

607/060000

In general, the invention is directed to techniques for using a magnet to suspend a function of an implanted device, and to verify that the function has been suspended. A suspension device emits a magnetic field to suspend a function of a device implanted in a body, receives a signal that the function has been suspended, and outputs an indicator that the function has been suspended. In this manner, an operator can proceed having confidence that the suspension of the function was completed, and did not fail due to inappropriate placement of the magnet, slippage, or any other of a number of reasons.