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Leif Erik Leirfallom

from Plymouth, MN
Age ~79

Leif Leirfallom Phones & Addresses

  • 1525 Juneau Ln, Plymouth, MN 55447 (763) 370-7556
  • Minneapolis, MN
  • Mountain Vlg, CO
  • Alma, CO
  • 35 Lakeshore Park Rd, Boulder, CO 80302
  • Eveleth, MN
  • Breckenridge, CO
  • Durango, CO
  • Parker, CO

Work

Company: Bayer healthcare Dec 2004 Position: Development engineering

Education

Degree: Bachelors, Bachelor of Science School / High School: University of Minnesota Specialities: Mechanical Engineering

Skills

Medical Devices • Product Development

Industries

Medical Devices

Resumes

Resumes

Leif Leirfallom Photo 1

Development Engineering

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Location:
Minneapolis, MN
Industry:
Medical Devices
Work:
Bayer Healthcare
Development Engineering
Education:
University of Minnesota
Bachelors, Bachelor of Science, Mechanical Engineering
Skills:
Medical Devices
Product Development

Publications

Us Patents

Pressure Actuated Catheter Seal And Method For The Same

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US Patent:
20110208129, Aug 25, 2011
Filed:
Feb 22, 2011
Appl. No.:
13/032185
Inventors:
Michael J. Bonnette - Minneapolis MN, US
Eric J. Thor - Arden Hills MN, US
Stephen E. Weisel - Brook Park MN, US
Leif E. Leirfallom - Plymouth MN, US
Laszlo T. Farago - Hudson WI, US
International Classification:
A61M 25/00
US Classification:
604247, 604256
Abstract:
A catheter includes a pressure actuated seal within a manifold. A catheter body is coupled with the manifold, and a manifold lumen and catheter lumen are configured to receive pressurized fluids. The pressure actuated seal includes a pressure actuated seal element having a seal element lumen. The seal element lumen is in communication with the manifold and catheter lumens. The pressure actuated seal element is deformable between an open configuration and a sealed configuration. In the sealed configuration, the pressurized fluid in the manifold presses on the pressure actuated seal element along a first seal face. The pressure actuated seal element compresses inwardly around the seal element lumen according to the pressure of the pressurized fluid. In the open configuration, the pressure actuated seal element relaxes in the absence of the pressurized fluid, and the seal element lumen is open and configured to allow passage of an instrument.

Occlusive Guidewire System Having An Ergonomic Handheld Control Mechanism Prepackaged In A Pressurized Gaseous Environment And A Compatible Prepackaged Torqueable Kink-Resistant Guidewire With Distal Occlusive Balloon

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US Patent:
20080097294, Apr 24, 2008
Filed:
Oct 16, 2006
Appl. No.:
11/581613
Inventors:
Richard Russell Prather - St. Michael MN, US
Leif Erik Leirfallom - Minneapolis MN, US
Eric Joel Thor - Arden Hills MN, US
Michael John Bonnette - Minneapolis MN, US
Robert Alan Lambert - Lake Elmo MN, US
Laszlo Trent Farago - Hudson WI, US
International Classification:
A61M 31/00
B65B 31/04
US Classification:
604 9504, 53403
Abstract:
An occlusive guidewire system having an ergonomic handheld control mechanism prepackaged in a pressurized gaseous environment and a compatible prepackaged torqueable kink-resistant guidewire with distal occlusive balloon. Convenient structure and overall mechanism for operation of a torqueable kink-resistant guidewire with a distal occlusive balloon, including evacuation and inflation control of the distal occlusive balloon, and sealing and severing of a crimpable inflation tube which is in communication with the occlusive balloon. Torqueable kink-resistant guidewires include centrally located structure which imparts robustness to the torqueable kink-resistant guidewires. An inflation lumen aligns within the torqueable kink-resistant guidewires for inflation of the occlusive balloon.

Pressure Actuated Catheter Seal And Method For The Same

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US Patent:
20150151101, Jun 4, 2015
Filed:
Feb 10, 2015
Appl. No.:
14/618448
Inventors:
- Hamilton HM11, BM
ERIC J. THOR - ARDEN HILLS MN, US
STEPHEN E. WEISEL - BROOK PARK MN, US
LEIF E. LEIRFALLOM - PLYMOUTH MN, US
LASZLO T. FARAGO - HUDSON WI, US
Assignee:
BOSTON SCIENTIFIC LIMITED - Hamilton HM11
International Classification:
A61M 39/06
Abstract:
A catheter includes a pressure actuated seal within a manifold. A catheter body is coupled with the manifold, and a manifold lumen and catheter lumen are configured to receive pressurized fluids. The pressure actuated seal includes a pressure actuated seal element having a seal element lumen. The seal element lumen is in communication with the manifold and catheter lumens. The pressure actuated seal element is deformable between an open configuration and a sealed configuration. In the sealed configuration, the pressurized fluid in the manifold presses on the pressure actuated seal element along a first seal face. The pressure actuated seal element compresses inwardly around the seal element lumen according to the pressure of the pressurized fluid. In the open configuration, the pressure actuated seal element relaxes in the absence of the pressurized fluid, and the seal element lumen is open and configured to allow passage of an instrument.

Catheter System

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US Patent:
20140276602, Sep 18, 2014
Filed:
Mar 13, 2013
Appl. No.:
13/801581
Inventors:
- Indianola PA, US
Leif E. Leirfallom - Plymouth MN, US
Assignee:
Medrad, Inc. - Indianola PA
International Classification:
A61M 25/00
A61M 25/01
A61M 5/142
US Classification:
604508, 60416409, 604151
Abstract:
A multi-station hydrodynamic catheter includes an outer catheter having a first lumen, the outer catheter having a plurality of orifice stations positioned along a portion of the outer catheter, where each orifice station includes one or more orifices extending from an outer catheter external surface to the first lumen. The multi-station hydrodynamic catheter includes an inner catheter having a second lumen, the inner catheter movable within the first lumen and includes at least one emanator, where the at least one emanator includes one or more fluid delivery ports extending from an inner catheter external surface to the second lumen.

Thrombectomy Catheters, Systems And Methods

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US Patent:
20140277006, Sep 18, 2014
Filed:
Mar 14, 2013
Appl. No.:
13/827208
Inventors:
- Indianola PA, US
Eric J. Thor - Arden Hills MN, US
Jason M. Bronstad - St. Francis MN, US
Michael Schrom - Forest Lake MN, US
Leif E. Leirfallom - Plymouth MN, US
Debra M. Kozak - Forest Lake MN, US
International Classification:
A61B 17/3203
A61M 25/01
US Classification:
606159
Abstract:
Thrombectomy catheters having at least one outflow orifice and one or more inflow orifices, systems including the thrombectomy catheters, and methods of using the thrombectomy catheters are described herein. The thrombectomy catheters described herein may include one or more of the protective features that may limit potential hazards to vessel walls in which the thrombectomy catheters are used.
Leif Erik Leirfallom from Plymouth, MN, age ~79 Get Report