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Nathan A Grenz

from Saint Paul, MN
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Related to:
Kathleen M Grenz, 44Susan K Grenz, 71Susan GrenzKathleen M Kalm, 56Douglas D GrenzMargaret A Kalm, 77Michael L Kalm, 74
Connected to:
Catherine C Grenz, 51Costello D Grenz, 92Doris N Grenz, 95Jessica N Grenz, 35Lorene I Grenz, 101Rosalena P Grenz, 70Beverly M Grenzer, 69Kenneth J Grenzer, 52Nicholas M Grenzer, 35Peter R Grenzow, 32

Nathan Grenz Phones & Addresses

  • Saint Paul, MN
  • 4140 Selkirk Rd, Bismarck, ND 58503 (701) 258-2999

Work

Company: Medtronic Jan 2018 Position: Principal scientist

Industries

Medical Devices

Resumes

Resumes

Nathan Grenz Photo 1

Principal Scientist

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Location:
Minneapolis, MN
Industry:
Medical Devices
Work:
Medtronic
Principal Scientist
Medtronic Jan 1, 2005 - Jan 2018
Senior Scientist

Publications

Us Patents

Detection Of Target Vein For Crt Therapy

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US Patent:
20130165986, Jun 27, 2013
Filed:
Dec 23, 2011
Appl. No.:
13/336113
Inventors:
Subham Ghosh - Circle Pines MN, US
Jeffrey M. Gillberg - Coon Rapids MN, US
Nathan A. Grenz - Shoreview MN, US
Assignee:
MEDTRONIC, INC - Minneapolis MN
International Classification:
A61N 1/372
US Classification:
607 28
Abstract:
A method for selecting a target vein for left ventricular lead placement for cardiac resynchronization therapy includes determining electrical dispersion for the first coronary vein by calculating the difference between (i) activation time at a location of the vein that has the latest activation time of a plurality of locations in the vein and (ii) activation time at a location that has the earliest activation time of the plurality of locations. The method may further include (ii) determining whether the magnitude of the electrical dispersion for the vein meets or exceeds a predetermined threshold selecting the vein if the vein meets or exceeds the predetermined threshold; or (ii) selecting, among several veins, the vein that has the highest electrical dispersion.

Detection Of Extracardiac Stimulation By A Cardiac Rhythm Management Device

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US Patent:
20130060298, Mar 7, 2013
Filed:
Aug 31, 2012
Appl. No.:
13/600282
Inventors:
Vincent E. Splett - Apple Valley MN, US
Robert W. Stadler - Shoreview MN, US
Nathan A. Grenz - Shoreview MN, US
International Classification:
A61N 1/37
US Classification:
607 28
Abstract:
A medical device system and associated method for controlling a cardiac rhythm management therapy detect extracardiac stimulation. Cardiac pacing pulses are delivered, and a cardiac electrical signal comprising myocardial depolarization and repolarization signals is acquired. A processor is configured to, responsive to the cardiac electrical signal, detect extracardiac capture due to the cardiac pacing pulse.

Lead Construction Including Alignable Marker Elements

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US Patent:
20220226636, Jul 21, 2022
Filed:
Jan 19, 2022
Appl. No.:
17/579064
Inventors:
- Minneapolis MN, US
Varun Bhatia - Minneapolis MN, US
Kendall Emfield - Excelsior MN, US
Ryan Lahm - Lino Lakes MN, US
Alan Cheng - Minneapolis MN, US
Douglas S. Hine - Forest Lake MN, US
Kristin M. Johnson - Circle Pines MN, US
Gregory N. Nesseth - Forest Lake MN, US
Jonathan E. Baxter - Fridley MN, US
Daniel W. Celotta - Circle Pines MN, US
Stephen A. Howard - Forest Lake MN, US
Nathan A. Grenz - North Oaks MN, US
Brian P. Colin - Anoka MN, US
Ronald A. Drake - St. Louis Park MN, US
Juan Meng - Shanghai, CN
Hongyang Lu - Shanghai, CN
International Classification:
A61N 1/05
B33Y 10/00
B33Y 80/00
B33Y 30/00
Abstract:
Implantable apparatus includes two or more alignable marker elements, and systems and methods for manufacturing such implantable apparatus, and methods to utilize such implantable apparatus. For example, the implantable apparatus may include a first alignable marker element and a second alignable marker element that may be used to ensure proper alignment with a target site.

Implantable Medical Devices For Multi-Chamber Pacing

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US Patent:
20210154477, May 27, 2021
Filed:
Nov 26, 2020
Appl. No.:
17/105603
Inventors:
- Minneapolis MN, US
Wade M. Demmer - Coon Rapids MN, US
Nathan A. Grenz - North Oaks MN, US
Ruth N. Klepfer - St. Louis Park MN, US
Alexander R. Mattson - St. Paul MN, US
Kevin Seifert - Forest Lake MN, US
Zhongping Yang - Woodbury MN, US
International Classification:
A61N 1/368
A61N 1/05
A61B 17/34
A61N 1/375
Abstract:
Systems, devices, and methods may be used to deliver and provide cardiac pacing therapy to a patient. Leads or leadlets carrying one or more left ventricular electrodes may be positioned in or near the interventricular septum to sense and pace left ventricular signals of the patient's heart. In one example, a leadlet including one or more left ventricular electrodes may extend in the coronary sinus from a leadless implantable medical device located in the right atrium.

Vfa Delivery And Implant Region Detection

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US Patent:
20210060340, Mar 4, 2021
Filed:
Mar 8, 2020
Appl. No.:
16/812321
Inventors:
- Minneapolis MN, US
Zhongping Yang - Woodbury MN, US
Andrea J. Asleson - Maple Grove MN, US
Nathan A. Grenz - North Oaks MN, US
Kaileigh E. Rock - Minneapolis MN, US
International Classification:
A61N 1/368
A61N 1/05
A61N 1/362
A61N 1/375
Abstract:
A method includes locating the triangle of Koch region in the right atrium of a patient's heart; securing at least one electrode of an implantable lead or device to cardiac tissue from the triangle of Koch region to deliver ventricle-from-atrium (VfA) cardiac therapy; and testing the location or depth of the at least one electrode to configure VfA cardiac therapy. Locating the target implant region in the triangle of Koch region may include detecting an atrial slow pathway potential (ASP) or atrial pacing output.

Accelerometer Integrity Alert

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US Patent:
20160213934, Jul 28, 2016
Filed:
Jan 22, 2015
Appl. No.:
14/603070
Inventors:
- Minneapolis MN, US
Nathan A. Grenz - Shoreview MN, US
Robert D. Musto - Champlin MN, US
David L. Palkert - Golden Valley MN, US
Jonathan P. Roberts - Coon Rapids MN, US
James D. Reinke - Maple Grove MN, US
Paul R. Solheim - Blaine MN, US
International Classification:
A61N 1/365
G01P 15/00
A61N 1/37
Abstract:
A medical device and associated method determine a signal amplitude of a sensor signal produced by a MEMS sensor, compare the signal amplitude to a stiction detection condition, detect stiction of the MEMS sensor in response to the signal amplitude meeting the stiction detection condition, and automatically provide a corrective action in response to detecting the stiction.

Systems For Deploying Medical Diagnostics And/Or Therapy And Delivery Tools Thereof

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US Patent:
20160143758, May 26, 2016
Filed:
Nov 20, 2014
Appl. No.:
14/548323
Inventors:
- Minneapolis MN, US
Nathan A. GRENZ - Shoreview MN, US
Xiaonan SHEN - Shoreview MN, US
Michael R. LENERS - St. Francis MN, US
Lonnie D. RONNING - Coon Rapids MN, US
International Classification:
A61F 2/95
Abstract:
A delivery tool of a system for deploying medical diagnostics and/or therapy includes a deployment member and a sheath. An elastic cantilever element secured to a tubular sidewall of the deployment member, in proximity to a distal opening of a lumen formed by the sidewall, is spring biased to extend outward from the sidewall. When the cantilever element is received within the sheath, a sheath sidewall pushes the cantilever element inward, against the spring bias thereof, and a radius of curvature of the cantilever element approximately conforms to that of an outer surface of the deployment member sidewall. A helical track for receiving passage of a medical device helix fixation element therein may extend around a perimeter of the deployment member lumen, wherein a distal terminal end of the track is located in close proximity to the distal opening and generally opposite a free end of the cantilever element.

Method And Apparatus For Monitoring Of Patient Medication Compliance

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US Patent:
20150165213, Jun 18, 2015
Filed:
Dec 13, 2013
Appl. No.:
14/105306
Inventors:
- Minneapolis MN, US
Nathan A. Grenz - Shoreview MN, US
Rick D. McVenes - Isanti MN, US
International Classification:
A61N 1/37
Abstract:
A method and medical device for monitoring patient medication compliance that includes a plurality of electrodes to deliver a pacing therapy and a processor configured to determine a pacing threshold in response to the delivered pacing therapy, determine whether there is a change in the pacing threshold, and determine patient medication compliance in response to the determined changes.
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Nathan A Grenz from Saint Paul, MN Get Report