Daryl L Kiefer

US Patent:

58764208, Mar 2, 1999

Filed:

Aug 1, 1997

Appl. No.:

8/905108

Inventors:

Thomas J. Noll - St. Louis Park MN
Daryl Kiefer - Fridley MN
Michael C. Chappuis - Bloomington MN
Robert C. Collins - Eden Prairie MN

Assignee:

Innomedica - Bloomington MN

International Classification:

A61B 1728

US Classification:

606208

Abstract:

An improved medical instrument with a releasable lock interposed between the handles of the medical instrument to hold the jaws in closed position to grip an object. The lock has at least one flexible finger and a plurality of movable sleeves that allow one hand operation to selectively lock and release the jaws without substantial lateral displacement of the object. A plurality of locking stops is provided so that the jaws may be held closed at a variety to tensions, to accommodate a variety of objects.

US Patent:

20220338890, Oct 27, 2022

Filed:

Jul 8, 2022

Appl. No.:

17/861137

Inventors:

- Dover DE, US
Randy Beyreis - Andover MN, US
Scott Nelson - Mission Viejo CA, US
JiChao Sun - Santa Rosa CA, US
Brady Hatcher - Rogers MN, US
Laura Ortega - Fridley MN, US
Joe Duerr - Andover MN, US
Ae-Suk Pauling - St. Michael MN, US
Daryl Kiefer - Howard Lake MN, US
Bryan Goh - Maple Grove MN, US
Dannah Dean - Minnetonka MN, US
Marc Simmon - Saint Michael MN, US
Curtis Goreham-Voss - Maple Grove MN, US
Parker Hagen - Maple Grove MN, US
Tristan Tieso - Minneapolis MN, US
Lauren Eno - Minnetonka MN, US

International Classification:

A61B 17/22
A61M 25/10

Abstract:

A medical device may include an elongated body, a balloon positioned at a distal portion of the elongated body, and one or more pressure-wave emitters positioned along a central longitudinal axis of the elongated body within the balloon. The one or more pressure-wave emitters may be configured to propagate pressure waves radially outward through the fluid to fragment a calcified lesion at the target treatment site. The at least one of the one or more pressure-wave emitters may include an electronic emitter comprising a first electrode and a second electrode. The first electrode and the second electrode may be arranged to define a spark gap between the first electrode and the second electrode, and the second electrode may comprise a portion of a hypotube.

US Patent:

20220287732, Sep 15, 2022

Filed:

Feb 24, 2022

Appl. No.:

17/679434

Inventors:

- Dover DE, US
Randy Beyreis - Andover MN, US
Scott Nelson - Mission Viejo CA, US
JiChao Sun - Santa Rosa CA, US
Brady Hatcher - Rogers MN, US
Laura Ortega - Fridley MN, US
Joe Duerr - Andover MN, US
Ae-Suk Pauling - St. Michael MN, US
Daryl Kiefer - Howard Lake MN, US
Bryan Goh - Maple Grove MN, US
Dannah Dean - Minnetonka MN, US
Marc Simmon - Saint Michael MN, US
Curtis Goreham-Voss - Maple Grove MN, US
Parker Hagen - Maple Grove MN, US
Tristan Tieso - Minneapolis MN, US
Lauren Eno - Minnetonka MN, US

International Classification:

A61B 17/22

Abstract:

A medical device may include an elongated body, a balloon positioned at a distal portion of the elongated body, and one or more pressure-wave emitters positioned along a central longitudinal axis of the elongated body within the balloon. The one or more pressure-wave emitters may be configured to propagate pressure waves radially outward through the fluid to fragment a calcified lesion at the target treatment site. The at least one of the one or more pressure-wave emitters may include an electronic emitter comprising a first electrode and a second electrode. The first electrode and the second electrode may be arranged to define a spark gap between the first electrode and the second electrode, and the second electrode may comprise a portion of a hypotube.