David Brian Jorgenson

US Patent:

6721600, Apr 13, 2004

Filed:

Dec 31, 2001

Appl. No.:

10/039667

Inventors:

David J. Jorgenson - Bloomington MN
Ross O. Starkson - Minneapolis MN
Rick D. McVenes - Isami MN
Charles D. Trautmann - Ham Lake MN
John D. Wahlstrand - Shoreview MN
Bradley C. Peck - Ham Lake MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 118

US Classification:

607 27, 607 28

Abstract:

A system for monitoring trends in lead impedance includes collecting data from various sources in an implantable medical device system. Lead impedance, non-physiologic sensed events percentage of time in mode switch, results of capture management operation, sensed events, adversion pace counts, refractory sense counts and similar data are used to determine the status of a lead. A set of weighted sum rules are implemented by a software system to process the data and provide displayable information to health care professionals via a programmer. The lead monitoring system includes a patient alert system for patients to seek help in the event a serious lead condition is identified.

US Patent:

7233825, Jun 19, 2007

Filed:

Feb 15, 2003

Appl. No.:

10/367299

Inventors:

David J. Jorgenson - Bloomington MN, US
Christopher M. Manrodt - White Bear Lake MN, US
Robert M. Ecker - Lino Lakes MN, US
Lawrence C. McClure - Forest Lake MN, US
Charles H. Malmskog - Maple Grove MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/36

US Classification:

607 28, 607 27, 607 62

Abstract:

In an implantable medical device having an electrical lead coupled to tissue of a user and a circuit for measuring the impedance of the lead, a method and apparatus for responding to impedance variations in the lead which includes measuring the impedance of the lead while monitoring physiologic parameters of the user, detecting the presence or absence of electromagnetic interference, and if the impedance of the lead is out-of-range, determining whether the electromagnetic interference exceeds a predetermined value, and if the electromagnetic interference exceeds a predetermined value, administering a therapy to the tissue of the user.

US Patent:

7797047, Sep 14, 2010

Filed:

Feb 18, 2004

Appl. No.:

10/781426

Inventors:

David J. Jorgenson - Bloomington MN, US
Ross O. Starkson - Minneapolis MN, US
Rick D. McVenes - Isanti MN, US
Charles D. Trautmann - Ham Lake MN, US
John D. Wahlstrand - Shoreview MN, US
Bradley C. Peck - Ham Lake MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/362

US Classification:

607 27

Abstract:

An implantable medical device (IMD) includes a lead status monitoring system. The lead status monitoring system employs a method including the steps of: collecting data sets from a lead impedance source, a stimulation threshold source, and at least one additional source included in the IMD; and processing the data sets to determine if a lead status event has occurred.

US Patent:

8463382, Jun 11, 2013

Filed:

Aug 26, 2010

Appl. No.:

12/868834

Inventors:

David J. Jorgenson - Bloomington MN, US
Ross O. Starkson - Minneapolis MN, US
Rick D. McVenes - Isanti MN, US
Charles D. Trautmann - Ham Lake MN, US
John D. Wahlstrand - Shoreview MN, US
Bradley C. Peck - Ham Lake MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/365

US Classification:

607 27

Abstract:

A system for monitoring trends in lead impedance includes collecting data from various sources in an implantable medical device system. Lead impedance, non-physiologic sensed events percentage of time in mode switch, results of capture management operation, sensed events, adversion pace counts, refractory sense counts and similar data are used to determine the status of a lead. A set of weighted sum rules are implemented by a software system to process the data and provide displayable information to health care professionals via a programmer. The lead monitoring system includes a patient alert system for patients to seek help in the event a serious lead condition is identified.

US Patent:

8548584, Oct 1, 2013

Filed:

Oct 27, 2008

Appl. No.:

12/258872

Inventors:

David J. Jorgenson - Bloomington MN, US

Assignee:

Physio-Control, Inc. - Redmond WA

International Classification:

A61N 1/08

US Classification:

607 4, 607 5, 607 10, 607 32, 607 60

Abstract:

In general, the invention is directed to techniques for using an external defibrillator to detect a presence of an implantable medical device (IMD) implanted within a patient, and providing therapy to the patient through communication between the external defibrillator and the IMD. An external defibrillator provides prompts to a user of the external defibrillator to determine the presence of an IMD implanted within the patient. For example, the external defibrillator may prompt the user to visually inspect the patient's chest for signs that an IMD was implanted, such as a scar or raised portion of skin near the patient's clavicles. As another example, the external defibrillator may prompt the user to place a detection device on the patient's chest. The detection device may be coupled to the external defibrillator, and may employ a magnet to initiate telemetry by the IMD to detect the presence of the IMD.

US Patent:

20080004663, Jan 3, 2008

Filed:

Dec 22, 2005

Appl. No.:

11/316198

Inventors:

David Jorgenson - Bloomington MN, US

Assignee:

Medtronic Emergency Response Systems, Inc. - Redmond WA

International Classification:

A61N 1/00
A61B 19/00

US Classification:

607005000, 128899000, 607032000

Abstract:

In general, the invention is directed to techniques for using an external defibrillator to detect a presence of an implantable medical device (IMD) implanted within a patient, and providing therapy to the patient through communication between the external defibrillator and the IMD. An external defibrillator provides prompts to a user of the external defibrillator to determine the presence of an IMD implanted within the patient. For example, the external defibrillator may prompt the user to visually inspect the patient's chest for signs that an IMD was implanted, such as a scar or raised portion of skin near the patient's clavicles. As another example, the external defibrillator may prompt the user to place a detection device on the patient's chest. The detection device may be coupled to the external defibrillator, and may employ a magnet to initiate telemetry by the IMD to detect the presence of the IMD.

US Patent:

20120123241, May 17, 2012

Filed:

Jan 26, 2012

Appl. No.:

13/359415

Inventors:

Michael C. Stilley - Lino Lakes MN, US
John Robert Knapinski - Kirkland WA, US
Robert Garland Walker - Seattle WA, US
David J. Jorgenson - Bloomington MN, US

Assignee:

Physio-Control, Inc. - Redmond WA

International Classification:

A61B 5/055
A61N 5/10
A61N 7/00
G08B 21/02
A61N 1/00
A61H 31/00

US Classification:

600410, 607 5, 601 41, 601 2, 3405731, 378 65

Abstract:

In one embodiment, an external first medical device includes a treatment module for administering a first treatment. The first medical device also includes a warning module for transmitting, before the first treatment is administered, a warning about the impending administration of the first treatment. The warning is suitable for receipt by a second medical device that could be attached to the patient unbeknownst to the first device, and which could be impacted by the first treatment. As such, the second medical device is given the opportunity to take a defensive action.

US Patent:

20120123242, May 17, 2012

Filed:

Jan 26, 2012

Appl. No.:

13/359416

Inventors:

Michael C. Stilley - Lino Lakes MN, US
John Robert Knapinski - Kirkland WA, US
Robert Garland Walker - Seattle WA, US
David J. Jorgenson - Bloomington MN, US

Assignee:

Physio-Control, Inc. - Redmond WA

International Classification:

A61B 5/055
A61H 31/00
A61N 5/10
A61N 7/00
G08B 21/02
A61N 1/39
A61M 5/00

US Classification:

600410, 607 5, 601 41, 604 48, 601 2, 3405731, 378 65

Abstract:

In one embodiment, an external second medical device is capable of being attached to a patient. The second medical device includes an operation module that is capable of operating at different capacities, such as at a first capacity and a second capacity. The second medical device also includes a receiver for receiving a warning about an impending administration of a first treatment to the patient, by a first medical device that does not know about the second medical device being attached to the patient. In response to receiving the warning, the second medical device undertakes a defensive action, whereby the operation of the operation module is capable of being performed at the second capacity. This way, the first treatment, when administered, will impact the second medical device less or not at all.