Jeffrey J Wilkinson

US Patent:

6704602, Mar 9, 2004

Filed:

Oct 29, 1999

Appl. No.:

09/423101

Inventors:

Gary Berg - Edina MN
Jill H. Ernst - Apple Valley MN
Chester G. Nelson - Maple Grove MN
Charles Stomberg - Forest Lake MN
Jeffrey D. Wilkinson - Vadnais Heights MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1362

US Classification:

607 60

Abstract:

A medical device communications system uses subthreshold pulses, modulated to provide relatively high speed electrical communications with inexpensive external devices connectable to a body with the implant by surface leads.

US Patent:

7935935, May 3, 2011

Filed:

Feb 27, 2009

Appl. No.:

12/394179

Inventors:

Jonathan P. Roberts - Coon Rapids MN, US
James D. Reinke - Maple Grove MN, US
Jeffrey D. Wilkinson - Vadnais Heights MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

G01J 1/42

US Classification:

250393

Abstract:

A radiation-based timer for use in an implantable medical device (IMD) includes a radiation source and a radiation detection circuit. The radiation source emits radiation particles during a process referred to as radioactive decay. The radiation detection circuit detects the radiation particles emitted during the decay process and tracks the number of radiation particles detected. When the number of radiation particles detected reaches a threshold value, a timer signal is generated. In this manner, the radiation-based timer generates a timer signal as a function of the radioactive decay of the radiation source. The timer signal may be used by one or more components of the IMD for any of a number of functions, including as a wakeup trigger for a communications and/or a sensor event.

US Patent:

20040172104, Sep 2, 2004

Filed:

Jan 22, 2004

Appl. No.:

10/763989

Inventors:

Gary Berg - Edina MN, US
Jill Emst - Apple Valley MN, US
Chester Nelson - Maple Grove MN, US
Charles Stomberg - Forest Lake MN, US
Jeffrey Wilkinson - Vadnais Heights MN, US

Assignee:

Medtronic, Inc.

International Classification:

A61N001/18

US Classification:

607/060000

Abstract:

A medical device communications system uses subthreshold pulses, modulated to provide relatively high speed electrical communications with inexpensive external devices connectable to a body with the implant by surface leads.

US Patent:

20210085202, Mar 25, 2021

Filed:

Jun 23, 2020

Appl. No.:

16/909778

Inventors:

- Minneapolis MN, US
Tarek D. Haddad - Minneapolis MN, US
Michelle M. Galarneau - Minneapolis MN, US
Vinod Sharma - Maple Grove MN, US
Jeffrey D. Wilkinson - Vadnais Heights MN, US
Brian B. Lee - Golden Valley MN, US
Eduardo N. Warman - Maple Grove MN, US

International Classification:

A61B 5/04
A61B 5/11
A61B 5/0215
A61B 5/00
G06K 9/62

Abstract:

Techniques are disclosed for automatically calibrating a reference orientation of an implantable medical device (IMD) within a patient. In one example, sensors of an IMD sense a plurality of orientation vectors of the IMD with respect to a gravitational field. Processing circuitry of the IMD processes the plurality of orientation vectors to identify an upright vector that corresponds to an upright posture of the patient. The processing circuitry classifies the plurality of orientation vectors with respect to the upright vector to define a sagittal plane of the patient and a transverse plane of the patient. The processing circuitry determines, based on the upright vector, the sagittal plane, and the transverse plane, a reference orientation of the IMD within the patient. As the orientation of the IMD within the patient changes over time, the processing circuitry may recalibrate its reference orientation and accurately detect a posture of the patient.