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Len D Twetan

from Excelsior, MN
Age ~64
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Also known as:
Len Dean Twetan, Leonard D Twetan, Twetan Ld
Phone and address:
26300 Smithtown Rd, Orono, MN 55331
(952) 470-9148
Related to:
Erin M Nowlan, 39Tracey M Twetan, 40Julie R Twetan, 63Clifford A Twetan, 67Andrew Twetan, 40Ethel M Twetan, 93Samuel W Twetan, 31Stacy T Musser, 38
Connected to:
Virginia M Twete, 87Amanda L Tweten, 44Janet S Tweten, 67Michelle M Tweten, 58Tonya L Tweter, 52David M Twible, 62William C Twible, 42Cheryl J Twichell, 61David C Twichell, 106Dennis J Twichel, 63

Len Twetan Phones & Addresses

  • 26300 Smithtown Rd, Excelsior, MN 55331 (952) 470-9148
  • Shorewood, MN
  • Minneapolis, MN
  • Leesburg, FL

Work

Company: Medtronic Apr 1991 Position: Director product development

Education

Degree: BS School / High School: University of Florida Specialities: Computer Science

Skills

Design Control • Medical Devices • R&D • Fda • Cross Functional Team Leadership • Product Launch • Market Development • Quality System

Industries

Medical Devices

Resumes

Resumes

Len Twetan Photo 1

Director Product Development

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Location:
26300 Smithtown Rd, Excelsior, MN 55331
Industry:
Medical Devices
Work:
Medtronic since Apr 1991
Director Product Development
Education:
University of Florida
BS, Computer Science
Skills:
Design Control
Medical Devices
R&D
Fda
Cross Functional Team Leadership
Product Launch
Market Development
Quality System

Business Records

Name / Title
Company / Classification
Phones & Addresses
Len Twetan
Principal, Owner
Eagle Ridge Academy
Elementary/Secondary School
7255 Flying Cloud Dr, Edina, MN 55344
(952) 746-7760, (952) 746-7765

Publications

Us Patents

Telemetry Antenna For An Implantable Medical Device

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US Patent:
7016733, Mar 21, 2006
Filed:
Apr 23, 2003
Appl. No.:
10/421179
Inventors:
Garry L. Dublin - Maple Grove MN, US
William D. Verhoef - Andover MN, US
Rodney S. Wallace - Maple Grove MN, US
Len D. Twetan - Excelsior MN, US
Eugene Kuschnir - Forest Lake MN, US
Gregory J. Haubrich - Champlin MN, US
Piotr J Przybyszewski - Minneapolis MN, US
Christine G. Kronich - St. Paul MN, US
Bonnie Dougherty, legal representative - Briggs PA, US
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61N 1/365
US Classification:
607 36
Abstract:
Improved telemetry antennas and methods of fabrication for an implantable medical device (IMD) for use in uplink telemetry (UT) and downlink telemetry (DT) transmissions between the IMD and an external medical device (EMD) are disclosed. A first telemetry antenna element is supported to extend in a first direction along a minor side of the IMD housing by a first header segment, and a second antenna element is supported to extend in a second direction along a second minor side of the IMD housing by a second header segment. The first and second antenna elements are supported to extend apart at substantially 90 to one another, i. e. , substantially orthogonally, in substantially a common plane to optimize UT transmission and DT reception of UHF telemetry signals by at least one of the first and second antenna elements depending upon the mutual spatial orientation with the antenna elements of an EMD antenna.

Implantable Medical Device Package Antenna

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US Patent:
7289855, Oct 30, 2007
Filed:
Jun 9, 2004
Appl. No.:
10/864704
Inventors:
David Nghiem - Fridley MN, US
Lawrence A. Baylis - Fridley MN, US
David B. Bohn - Ham Lake MN, US
Glenn R. Biddick - Minneapolis MN, US
John J Spitzley - Hudson WI, US
Len D. Twetan - Excelsior MN, US
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61N 1/00
A61B 19/00
US Classification:
607 60, 607 9, 607 27, 607 30, 607 32, 607156, 128899, 128897
Abstract:
A wireless communication system is provided that includes an antenna structure adapted for coupling to a medical device antenna when the medical device is not implanted in a patient's body. The antenna structure effectively extends the medical device antenna length, thereby improving the efficiency and reliability of a communication link between the medical device and a programmer or monitor outside the implanted environment. The antenna structure is fabricated from any conductive material, which may be in the form of conductive wire, tape, ink, foil, film, adhesive or the like, and is attached to a portion of a medical device packaging assembly or another accessory device or substrate such as a pouch or overlay. The antenna structure may be a monopole, dipole, slot antenna, microstrip patch, or loop antenna, and may be fixed or movable relative to the substrate on which it is implemented.

Telemetry Antenna For An Implantable Medical Device

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US Patent:
7317946, Jan 8, 2008
Filed:
Mar 10, 2004
Appl. No.:
10/797511
Inventors:
Len D. Twetan - Excelsior MN, US
Piotr Przybyszewski - Coon Rapids MN, US
Garry L. Dublin - Maple Grove MN, US
Gregory J. Haubrich - Champlin MN, US
Andrina J. Hougham - North Oaks MN, US
Andrew J. Ries - Lino Lakes MN, US
David B. Engmark - Bethel MN, US
Gary M. Grose - Brooklyn Park MN, US
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61N 1/08
US Classification:
607 60, 607 32, 607 36, 607 55, 607 56, 607 57, 607156, 128903, 343718, 343824, 343873, 3405277
Abstract:
A telemetry antenna for an implantable medical device includes one or more portions having a non-linear configuration. In some embodiments, the non-linear configuration provides an antenna having a greater antenna length than the linear lengthwise dimension of the antenna structure. In some embodiments, the non-linear configuration is a serpentine pattern.

Implantable Device Including Multiple Communication Antennas

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US Patent:
7672731, Mar 2, 2010
Filed:
Apr 20, 2005
Appl. No.:
11/109995
Inventors:
Garry L. Dublin - Maple Grove MN, US
Gregory J. Haubrich - Champlin MN, US
Chris C. Fuller - Minneapolis MN, US
Piotr Przybyszewski - Coon Rapids MN, US
Len D. Twetan - Excelsior MN, US
William D. Verhoef - Andover MN, US
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61N 1/02
US Classification:
607 60, 607 36
Abstract:
An implantable device, such as an implantable medical device (IMD) includes at least two radio frequency (RF) antennas and may additionally include an RF communication circuit. The RF antennas are spatially diverse, are disposed adjacent a housing, and are each configured to receive RF signals transmitted to the IMD from a remote RF signal source. The RF communication circuit, if included, is disposed within the housing and is configured to selectively receive the RF signals received by one or more of the spatially diverse RF antennas.

Communication System For Medical Devices

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US Patent:
7761164, Jul 20, 2010
Filed:
Nov 30, 2005
Appl. No.:
11/290387
Inventors:
William D. Verhoef - Andover MN, US
Gregory J. Haubrich - Champlin MN, US
Javaid Masoud - Shoreview MN, US
Len D. Twetan - Excelsior MN, US
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61N 1/362
US Classification:
607 30, 607 32, 607 60, 128903, 128904
Abstract:
A communications device facilitates communication between a medical device and a wireless communications network and comprises a telemetry circuit configured to wirelessly communicate with one or more medical devices, and a computer network communication interface configured to wirelessly communicate directly with a wireless computer network. The communications device also comprises a peripheral device communication interface configured to communicate with a wireless peripheral device and a processor being in operable communication with, and configured to control operations of, the telemetry circuit, the network communication interface, and the peripheral device communication interface.

System And Method For Unscheduled Wireless Communication With A Medical Device

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US Patent:
8065018, Nov 22, 2011
Filed:
Sep 12, 2005
Appl. No.:
11/224593
Inventors:
Gregory J. Haubrich - Champlin MN, US
Len D. Twetan - Excelsior MN, US
David Peichel - Minneapolis MN, US
Charles H. Dudding - Lino Lakes MN, US
George C. Rosar - Minneapolis MN, US
Quentin S. Denzene - Andover MN, US
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61N 1/00
US Classification:
607 60, 607 30, 607 32
Abstract:
Unscheduled wireless communication with a medical device is achieved by operating a receiver of the medical device in a series of modes. Each mode provides an increasingly selective evaluation of received RF energy. The receiver, when operating in a first mode, is capable of detecting the presence of RF energy transmitted from a communicating device. The receiver, when operating in a second mode, consumes more energy than the first mode and analyzes the RF energy to determine whether it contains the appropriate type of modulation. When operating in a third mode, the receiver consumes more energy than the second mode, and operates the full receiver to begin communication with the communicating device. The receiver opens a communication session after the RF energy has passed the evaluation by the series of modes to receive an unscheduled communication.

Method And Apparatus For Minimizing Emi Coupling In A Feedthrough Array Having At Least One Unfiltered Feedthrough

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US Patent:
8160707, Apr 17, 2012
Filed:
Jan 30, 2006
Appl. No.:
11/343106
Inventors:
Rajesh V. Iyer - Eden Prairie MN, US
Daniel J. Koch - Lakeville MN, US
Simon E. Goldman - St. Louis Park MN, US
Shawn D. Knowles - St. Francis MN, US
William J. Taylor - Anoka MN, US
Joyce K. Yamamoto - Maple Grove MN, US
Gregory J. Haubrich - Champlin MN, US
Michael Nowak - Andover MN, US
David Nghiem - Shoreview MN, US
Roger L. Hubing - Hastings MN, US
Len D. Twetan - Excelsior MN, US
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61N 1/00
H03H 7/00
US Classification:
607 37, 607 36, 333182
Abstract:
An implantable medical device is provided including a housing, an external circuit element extending outwardly from the housing, an internal circuit enclosed by the housing, a feedthrough array disposed along the housing having at least one filtered feedthrough and at least one unfiltered feedthrough, wherein the unfiltered feedthrough is adapted for connection to the outwardly extending circuit element; and including means for minimizing electromagnetic coupling between the filtered feedthrough and the unfiltered feedthrough.

System And Method For Unscheduled Wireless Communication With A Medical Device

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US Patent:
8280521, Oct 2, 2012
Filed:
Oct 14, 2011
Appl. No.:
13/273630
Inventors:
Gregory J. Haubrich - Champlin MN, US
Len D. Twetan - Excelsior MN, US
David Peichel - Minneapolis MN, US
Charles H. Dudding - Lino Lakes MN, US
George C. Rosar - Minneapolis MN, US
Quentin S. Denzene - Andover MN, US
Assignee:
Medtronic, Inc. - Minneapolis MN
International Classification:
A61N 1/00
US Classification:
607 60, 607 30, 607 32
Abstract:
Unscheduled wireless communication with a medical device is achieved by operating a receiver of the medical device in a series of modes. Each mode provides an increasingly selective evaluation of received RF energy. The receiver, when operating in a first mode, is capable of detecting the presence of RF energy transmitted from a communicating device. The receiver, when operating in a second mode, consumes more energy than the first mode and analyzes the RF energy to determine whether it contains the appropriate type of modulation. When operating in a third mode, the receiver consumes more energy than the second mode, and operates the full receiver to begin communication with the communicating device. The receiver opens a communication session after the RF energy has passed the evaluation by the series of modes to receive an unscheduled communication.
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Len D Twetan from Excelsior, MN, age ~64 Get Report