John D Welter

US Patent:

20140058292, Feb 27, 2014

Filed:

Jan 24, 2013

Appl. No.:

13/749237

Inventors:

Steven M. Goetz - North Oaks MN, US
Lothar Krinke - Eden Prairie MN, US
Mark S. Lent - Brooklyn Park MN, US
Erik R. Scott - Maple Grove MN, US
Xuan K. Wei - Minnetonka MN, US
John D. Welter - Plymouth MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 7/00

US Classification:

601 2

Abstract:

A system for use in managing a neuromodulation therapy includes an ultrasound transducer array controlled by a control unit to deliver ultrasound waveforms for causing modulation of neural tissue in a patient. The system acquires data indicating a response to the modulation, analyzes the acquired data to determine correlation data between a response to the modulation and an ultrasound control parameter, and reports the correlation data to enable identification of at least one therapy parameter to be used to deliver a neuromodulation therapy to the patient by a therapy delivery system.

US Patent:

20210282952, Sep 16, 2021

Filed:

Mar 13, 2020

Appl. No.:

16/818644

Inventors:

- Santa Rosa CA, US
John D. WELTER - Santa Rosa CA, US

International Classification:

A61F 2/962
A61F 2/07

Abstract:

An endovascular catheter system includes a stent graft system and a delivery system that are separately connected to one another. In embodiments, the stent graft system includes a stent graft configured to expand radially outwardly, and a stent graft cover surrounding at least a portion of the stent graft and configured to maintain the stent graft in a constricted configuration. The stent graft cover can slide relative to the stent graft to enable the stent graft to expand radially outward. A hollow stent graft middle member is located radially inward of the stent graft cover. The delivery system is coupled to the stent graft system and includes a delivery system outer cover configured to assemble to the stent graft cover.

US Patent:

20200376260, Dec 3, 2020

Filed:

Aug 17, 2020

Appl. No.:

16/995492

Inventors:

- Minneapolis MN, US
Spencer Fodness Bondhus - Columbia Heights MN, US
Michael Kalm - Spring Lake Park MN, US
James M. Olsen - Plymouth MN, US
Brian T. Stolz - Bloomington MN, US
Richard T. Stone - Minneapolis MN, US
Bryan D. Stem - Minneapolis MN, US
John D. Welter - Plymouth MN, US

International Classification:

A61N 1/05

Abstract:

Conductors within an implantable medical lead that carry stimulation signal signals are at least partially embedded within a lead body of the medical lead over at least a portion of the length of the conductors while being surrounded by a radio frequency (RF) shield. A space between the shield and the conductors is filled by the presence of the lead body material such that body fluids that infiltrate the lead over time cannot pool in the space between the shield and the conductors. The dielectric properties of the lead body are retained and the capacitive coupling between the shield and the conductors continues to be inhibited such that current induced on the shield is inhibited from being channeled onto the conductors. Heating at the electrodes of the medical lead is prevented from becoming excessive.

US Patent:

20190022381, Jan 24, 2019

Filed:

Sep 22, 2018

Appl. No.:

16/139013

Inventors:

- Minneapolis MN, US
Walter Doell - Gasel, CH
John D. Welter - Plymouth MN, US
Guillaume Schmit - Remerschen, LU
Niklaus Schneeberger - Koeniz, CH

International Classification:

A61N 1/08
A61N 1/05

Abstract:

Implantable medical systems include implantable medical leads that have magnetic orientation-independent magnetically actuated switches that are placed in the conduction path to the electrode of the lead. Thus, regardless of the orientation of a substantial magnetic field like that from an MRI machine to the lead and switch within the lead, the switch opens when in the presence of that substantial magnetic field. The switch may be placed in close proximity to the electrode such that the opening of the switch disconnects the electrode from the majority of the conduction path which thereby produces a high impedance for RF current and reduces the amount of heating that may occur at the electrode when in the presence of substantial levels of RF electromagnetic energy as may occur within an MRI machine.

US Patent:

20180289947, Oct 11, 2018

Filed:

Jun 11, 2018

Appl. No.:

16/005622

Inventors:

- Minneapolis MN, US
Spencer Fodness Bondhus - Columbia Heights MN, US
Michael Kalm - Spring Lake Park MN, US
James M. Olsen - Plymouth MN, US
Brian T. Stolz - Bloomington MN, US
Richard T. Stone - Minneapolis MN, US
Bryan D. Stem - Minneapolis MN, US
John D. Welter - Plymouth MN, US

International Classification:

A61N 1/05

Abstract:

Conductors within an implantable medical lead that carry stimulation signal signals are at least partially embedded within a lead body of the medical lead over at least a portion of the length of the conductors while being surrounded by a radio frequency (RF) shield. A space between the shield and the conductors is filled by the presence of the lead body material such that body fluids that infiltrate the lead over time cannot pool in the space between the shield and the conductors. The dielectric properties of the lead body are retained and the capacitive coupling between the shield and the conductors continues to be inhibited such that current induced on the shield is inhibited from being channeled onto the conductors. Heating at the electrodes of the medical lead is prevented from becoming excessive.

US Patent:

20180104483, Apr 19, 2018

Filed:

Dec 13, 2017

Appl. No.:

15/841275

Inventors:

- Minneapolis MN, US
Spencer M. Bondhus - Minneapolis MN, US
Walter Doell - Gasel, CH
John D. Welter - Plymouth MN, US
Guillaume Schmit - Remerschen, LU
Niklaus Schneeberger - Koeniz, CH

International Classification:

A61N 1/08
A61N 1/05

Abstract:

Implantable medical systems include implantable medical leads that have magnetic orientation-independent magnetically actuated switches that are placed in the conduction path to the electrode of the lead. Thus, regardless of the orientation of a substantial magnetic field like that from an MRI machine to the lead and switch within the lead, the switch opens when in the presence of that substantial magnetic field. The switch may be placed in close proximity to the electrode such that the opening of the switch disconnects the electrode from the majority of the conduction path which thereby produces a high impedance for RF current and reduces the amount of heating that may occur at the electrode when in the presence of substantial levels of RF electromagnetic energy as may occur within an MRI machine.

US Patent:

20170189677, Jul 6, 2017

Filed:

Feb 27, 2017

Appl. No.:

15/444296

Inventors:

- Minneapolis MN, US
Spencer M. Bondhus - Minneapolis MN, US
Walter Doell - Gasel, CH
John D. Welter - Plymouth MN, US
Guillaume Schmit - Remerschen, LU
Niklaus Schneeberger - Koeniz, CH

International Classification:

A61N 1/08
A61N 1/05

Abstract:

Implantable medical systems include implantable medical leads that have magnetic orientation-independent magnetically actuated switches that are placed in the conduction path to the electrode of the lead. Thus, regardless of the orientation of a substantial magnetic field like that from an MRI machine to the lead and switch within the lead, the switch opens when in the presence of that substantial magnetic field. The switch may be placed in close proximity to the electrode such that the opening of the switch disconnects the electrode from the majority of the conduction path which thereby produces a high impedance for RF current and reduces the amount of heating that may occur at the electrode when in the presence of substantial levels of RF electromagnetic energy as may occur within an MRI machine.

US Patent:

20170007853, Jan 12, 2017

Filed:

Jul 7, 2016

Appl. No.:

15/204430

Inventors:

- Minneapolis MN, US
Erik R. Scott - Maple Grove MN, US
John D. Welter - Santa Rosa CA, US
John R. LaLonde - Lake Elmo MN, US
Yohan Kim - Fridley MN, US

International Classification:

A61N 7/00
A61B 8/04
A61B 5/00
A61B 5/01
A61B 5/0205
A61B 5/145
A61B 8/02
A61B 5/11

Abstract:

In some examples, a system includes a flexible ultrasound device configured to be attached to an external surface of a patient proximate to an organ of the patient to deliver ultrasound configured to modulate nerve tissue of the patient at the organ. The system further comprises one or more sensors configured to sense one or more physiological parameters indicative of at least one of a symptom treatable by, or a side effect of, the neuromodulation, and processing circuitry configured to control the delivery of ultrasound during an ambulatory period of the patient, and monitor the least one of the symptom or the side effect during the ambulatory period, based on the one or more physiological parameters. The organ may be the spleen and the ultrasound may at least one of regulate the autoimmune system of the patient, or reduce an inflammation response of the patient.