Alfred Abner Iversen

US Patent:

7210810, May 1, 2007

Filed:

Sep 6, 2005

Appl. No.:

11/221094

Inventors:

Alfred A. Iversen - Wayzata MN, US
Robert F. Spetzler - Paradise Valley AZ, US
Andrew Iversen - Chanhassen MN, US
Deron Singer - Shakopee MN, US
Benjamin Osa - Edina MN, US

Assignee:

PMT Corporation - Chanhassen MN

International Classification:

A61B 1/06
F21V 21/084

US Classification:

362105, 362804

Abstract:

A surgical headlight assembly having a headset structure constructed of lightweight components. The headset structure has adjustable head strap members comprising a generally circular lateral band and a top band. A removable liner is attached to the inside surface of the adjustable headset structure. A lighting assembly which is adjustable with respect to the headset and which uses an adjustable LED is also provided connected to the lateral band. A battery pack is utilized to power the LED.

US Patent:

8435079, May 7, 2013

Filed:

Oct 1, 2010

Appl. No.:

12/924657

Inventors:

Benjamin Osa - Chanhassen MN, US
Eric Caillé - Chanhassen MN, US
Charles Talbott - Chanhassen MN, US
Joseph Copley - Chanhassen MN, US
Alfred Iversen - Chanhassen MN, US

Assignee:

PMT Corporation - Chanhassen MN

International Classification:

H01R 9/22

US Classification:

439668, 439909

Abstract:

Improved electrode assemblies for recording and stimulation. Cortical and depth electrode structures are provided as well as inline interconnection systems. Methods of manufacture are further taught to provide enhanced surfaces for cortical electrodes. The inline interconnection systems include connector assembly embodiments for electrode leads which have structure providing ease of EEG recording as well as stimulation.

US Patent:

8644903, Feb 4, 2014

Filed:

Apr 17, 2013

Appl. No.:

13/864945

Inventors:

Eric Caille - Chanhassen MN, US
Charles Talbott - Chanhassen MN, US
Joseph Copley - Chanhassen MN, US
Alfred Iversen - Chanhassen MN, US

Assignee:

PMT Corporation - Chanhassen MN

International Classification:

A61B 5/0478
A61N 1/05
H01R 9/22

US Classification:

600378, 600377, 600393, 607116, 439668, 439909

Abstract:

Improved electrode assemblies for recording and stimulation. Cortical and depth electrode structures are provided as well as inline interconnection systems. Methods of manufacture are further taught to provide enhanced surfaces for cortical electrodes. The inline interconnection systems include connector assembly embodiments for electrode leads which have structure providing ease of EEG recording as well as stimulation.

US Patent:

20040152968, Aug 5, 2004

Filed:

Jan 20, 2004

Appl. No.:

10/761450

Inventors:

Alfred Iversen - Wayzata MN, US
Eric Caille - Minnetonka MN, US
Deron Singer - Shakopee MN, US

International Classification:

A61B005/05

US Classification:

600/411000

Abstract:

Single-use, MRI compatible surgical and microsurgical instruments for neurosurgery, orthopedic surgery and other surgical uses. The surgical instruments are constructed of polymeric materials, graphite, titanium, nitonol compositions and combinations thereof. The instruments may have transparent polymeric portions, reference points on the handle and may have non-reflective surfaces. The instruments are constructed and arranged for use in interventional MRI suites.

US Patent:

59351640, Aug 10, 1999

Filed:

Feb 25, 1997

Appl. No.:

8/805687

Inventors:

Alfred A. Iversen - Wayzata MN

Assignee:

PMT Corporaton - Chanhassen MN

International Classification:

A61F 212
A61F 204
A61F 2510

US Classification:

623 8

Abstract:

A method of manufacturing a laminated item such as a prosthesis or tissue expander having a flexible, expandable membrane surrounding an interior lumen to enhance the strength and performance of the membrane comprises the steps of applying a first layer of a fluid, resilient, stretchable material to a mandrel; allowing the fluid material to drain off the mandrel in a first flow direction; allowing the fluid material to harden to form a resilient, stretchable first layer on the mandrel; applying a second layer of the fluid material on the first layer; changing the orientation of the mandrel to allow the fluid material to drain off the mandrel in a second flow direction, the second flow direction being at an angle to the first flow direction; and allowing the fluid material to harden to form a resilient, stretchable second layer on the first layer.

US Patent:

48634697, Sep 5, 1989

Filed:

Oct 20, 1987

Appl. No.:

7/110407

Inventors:

Allen L. VanBeek - Edina MN
Alfred A. Iversen - Wayzata MN
William J. Eastman - St. Louis Park MN

Assignee:

PMT Corporation - Chanhassen MN

International Classification:

A61F 212

US Classification:

623 8

Abstract:

A nerve expander used in plastic reconstruction surgery for lengthening damaged nerves which facilitates reattachment of damaged nerves to facilitate nerve operation and function after reconstruction. One or more saddles on an inflatable expansion member positionally accommodates a nerve in a saddle trough. The nerve expander with the saddle mounted nerve is subsequently inflated with saline solution injected into a self-sealing injection port causing the inflatable expansion member to expand and the nerve thereabout to be stretched and lengthened.

US Patent:

52116441, May 18, 1993

Filed:

Sep 20, 1991

Appl. No.:

7/763281

Inventors:

Allen L. VanBeek - Edina MN
Alfred A. Iversen - Minnetonka Beach MN

Assignee:

PMT Corporation - Chanhassen MN

International Classification:

A61M 3100

US Classification:

606 1

Abstract:

The process and apparatus for an autologous dermal graft transfer provides for the easy and accurate placement of dermal grafts during plastic surgery, typically for the filling of wrinkles or scars.

US Patent:

45414211, Sep 17, 1985

Filed:

Apr 3, 1984

Appl. No.:

6/596392

Inventors:

Alfred A. Iversen - Hopkins MN
William J. Eastman - Hopkins MN

Assignee:

PMT, Inc. - Hopkins MN

International Classification:

A61H 102

US Classification:

128 87B

Abstract:

Halo fixation system for fixation of a head about an orthopedic jacket with an attached halo assembly with respect to the cervical region such as for spine trauma. The halo fixation system includes eight fixated round ball-socket and rod assemblies, four assemblies affixed to the jacket and four assemblies in twin opposing captured elevation screw assemblies. The halo is adjustable through the twin captured elevation screw assemblies. Rods connected between the ball and socket assemblies of the jacket and of the captured elevation assemblies which support the halo. The halo can be either metal or composite material, and either a closed or open halo. The halo is omni adjustable about the head based on the omni directional adjustable rod in the ball-socket configurations located about the halo head piece and the jacket.