David M Bohn

US Patent:

6594613, Jul 15, 2003

Filed:

Dec 10, 1998

Appl. No.:

09/209134

Inventors:

Kevin Ley - Coon Rapids MN
David C. Bohn - Eden Prairie MN
David L. Wehrs - Eden Prairie MN

Assignee:

Rosemount Inc. - Eden Prairie MN

International Classification:

H04B 1500

US Classification:

702140, 702190, 702191, 702193, 327553, 327555

Abstract:

A process variable transmitter providing a transmitter output representing a process variable sensed by a sensor. The transmitter has a filter with a bandwidth which is automatically adjusted based on noise detected in a sensor output. When the transmitter senses higher sensor noise levels, it automatically decreases the bandwidth to damp noise in the transmitter output. When the transmitter senses lower sensor noise levels, it automatically increases the bandwidth to provide faster response to changes in the process variable.

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.

US Patent:

20060243625, Nov 2, 2006

Filed:

Apr 28, 2005

Appl. No.:

11/116960

Inventors:

Glenn Biddick - Minneapolis MN, US
Chad Kornegor - Inver Grove Heights MN, US
Judy Salzer - Coon Rapids MN, US
Dennis Zanto - New Brighton MN, US
James Domke - Edina MN, US
Shelley Lillie - Stillwater MN, US
David Bohn - Ham Lake MN, US
William Wenger - St. Paul MN, US

International Classification:

B65D 85/00

US Classification:

206459500

Abstract:

The present invention relates to a family of medical device packages designed and fabricated to provide instantaneous recognition as to the source and origin of a sterilized medical device stored therein and for passively retaining said medical device and related items in a desired manually accessible location within the package. The invention provides apparatus and methods for safely transporting, storing, identifying source and origin of, opening, packing and unpacking, evenly balanced packages containing sterilized implantable medical devices (IMDs). The packages and methods of the invention also are designed with features and structures that efficiently enhance the mechanical stability of one or more of the packages when stored in inventory at a clinic, in transport, and on an initial packaging site, and promote ease of handling and complement implant procedure efficiency in the operating room.

US Patent:

47412151, May 3, 1988

Filed:

Apr 15, 1987

Appl. No.:

7/039821

Inventors:

David C. Bohn - Eden Prairie MN
Lloyd E. Graupmann - Plato MN

Assignee:

Rosemount Inc. - Eden Prairie MN

International Classification:

G01F 158

US Classification:

7386112

Abstract:

A flow tube of a ceramic material used for a magnetic flowmeter is formed to have regions of a ceramic material which has enhanced properties useful in magnetic flowmeters, such as enhanced electrical conductivity or enhanced magnetic permeability. The ceramic material having enhanced electrical conductivity is used to form sensing surfaces directly in the flow tube wall so that there is no need to have separate metal electrodes attached to or otherwise formed in the wall of the flow tube. This insures a strong, monolithic flow tube wall.