Michael Kai Luk

US Patent:

8298462, Oct 30, 2012

Filed:

Dec 30, 2004

Appl. No.:

11/026158

Inventors:

Michael Luk - Hopkins MN, US
Jeff Sewell - Brooklyn Park MN, US
Jason Hill - Brooklyn Park MN, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

B27J 5/00
B29C 55/00

US Classification:

264127, 2642095, 2642107, 2642884

Abstract:

This invention relates to a method of uniaxially expanding a fluoropolymer product including the steps of expanding a green fluoropolymer product in a first direction to create a first-expanded fluoropolymer product, and expanding the first-expanded fluoropolymer product in the same first direction. As a result with the subject invention, it has been found that ultra-high expansion and a variety of different porous/fibril structures can be achieved by using subsequent expansion steps in the same direction. Various considerations exist with such methodology, including the selection of rates of expansion of both steps, the amount of expansion of both steps, pre-heating and cutting the product between expansion steps. Although the present invention can be used with various fluoropolymer products, it is particularly well-suited for use with PTFE.

US Patent:

8282657, Oct 9, 2012

Filed:

Jul 9, 2010

Appl. No.:

12/833006

Inventors:

Steven McClurg - Brooklyn Park MN, US
Christopher Anthony Thierfelder - Santa Barbara CA, US
Allen Gaynor - Coon Rapids MN, US
Pornpimon Ongmorakot - St. Paul MN, US
Timothy Andrew Bachman - St. Paul MN, US
Christian Richard Trifilio - St. Paul MN, US
Matthew Vail Leyden - St. Paul MN, US
Nicholas Ellering - Crystal MN, US
Michael K. Luk - Hopkins MN, US
James Leigh Lindenberg - Wyoming MN, US
Donald Wolf - Vadnais Heights MN, US

Assignee:

Coloplast A/S - Humlebaek

International Classification:

A61B 17/04

US Classification:

606145, 606139, 606144, 606148

Abstract:

A suturing assembly configured to place suture in tissue includes a handle having an actuator, a shaft coupled to the handle, and a head coupled to the shaft. The head includes a proximal portion housing a needle movable through a needle exit port and a distal end spaced apart from the proximal portion by a throat, the distal end defining a cavity. The actuator is configured to move the needle out of the needle exit port formed in the proximal portion of the head and across the throat to engage a capsule disposed in the cavity formed in the distal end of the head, the capsule attached to the suture.

US Patent:

8465503, Jun 18, 2013

Filed:

Jun 17, 2010

Appl. No.:

12/817198

Inventors:

Allen Gaynor - Coon Rapids MN, US
Michael K. Luk - Hopkins MN, US
Steven McClurg - Roseville MN, US
Michael M. Witzmann - Minneapolis MN, US
Ying Zheng - Stamford CT, US

Assignee:

Coloplast A/S - Humlebaek

International Classification:

A61B 17/04

US Classification:

606144, 606139

Abstract:

A suture fixation system includes a suture assembly having an anchor, an introducer, and a delivery device. The introducer is attachable to a finger of a person and includes a platform attached to an exterior of the introducer and a zip line attached to the platform. The delivery device is movable along the zip line and configured to removably retain the anchor. The introducer allows the finger to identify a target landmark within a patient and the delivery device is movable along the zip line and attachable to the platform to position the anchor for insertion to the target landmark.

US Patent:

8545520, Oct 1, 2013

Filed:

Aug 24, 2009

Appl. No.:

12/545905

Inventors:

Steven McClurg - Roseville MN, US
Christopher Anthony Thierfelder - Minneapolis MN, US
Allen Gaynor - Coon Rapids MN, US
Pornpimon Narthasilpa - St. Paul MN, US
Timothy Andrew Bachman - St. Paul MN, US
Christian Richard Trifilio - St. Paul MN, US
Matthew Vail Leyden - St. Paul MN, US
Nicholas Ellering - Crystal MN, US
Michael K. Luk - Hopkins MN, US
James Leigh Lindenberg - Wyoming MN, US
Donald Wolf - Vadnais Heights MN, US

Assignee:

Coloplast A/S - Humlebaek

International Classification:

A61B 17/04

US Classification:

606144, 606139, 606148

Abstract:

A method of suturing tissue includes engaging tissue with a suturing head, driving a needle from a proximal end portion of the suturing head through the tissue, and engaging a capsule disposed in a distal end portion of the suturing head with the needle, the capsule comprising a length of suture attached thereto.

US Patent:

8545521, Oct 1, 2013

Filed:

Aug 22, 2012

Appl. No.:

13/591235

Inventors:

Steven McClurg - Roseville MN, US
Christopher Anthony Thierfelder - Minneapolis MN, US
Allen Gaynor - Coon Rapids MN, US
Pornpimon Narthasilpa - St. Paul MN, US
Timothy Andrew Bachman - St. Paul MN, US
Christian Richard Trifilio - St. Paul MN, US
Matthew Vail Leyden - St. Paul MN, US
Nicholas Ellering - Crystal MN, US
Michael K. Luk - Hopkins MN, US
James Leigh Lindenberg - Wyoming MN, US
Donald Wolf - Vadnais Heights MN, US

Assignee:

Coloplast A/S - Humlebaek

International Classification:

A61B 17/04

US Classification:

606145, 606139, 606144, 606148

Abstract:

A suturing assembly is provided that is configured to pull a capsule attached to a suture through tissue. The suturing assembly includes a shaft aligned on a longitudinal axis of the suturing assembly, and a head coupled to the shaft. The head includes a proximal portion and a distal end spaced apart from the proximal portion by a throat. The proximal portion houses a needle that is movable through a needle exit port. The proximal portion of the head and the needle exit port are both aligned on the longitudinal axis. A proximal side of the distal end of the head defines a cavity adapted to receive the capsule and a distal side of the distal end of the head defines a slot adapted to allow the suture to pass through the distal end of the head and into the cavity.

US Patent:

20110092986, Apr 21, 2011

Filed:

Oct 15, 2010

Appl. No.:

12/905089

Inventors:

Allen Gaynor - Coon Rapids MN, US
Michael K. Luk - Hopkins MN, US
Steven McClurg - Roseville MN, US
Michael M. Witzmann - Minneapolis MN, US
Ying Zheng - Stamford CT, US

Assignee:

COLOPLAST A/S - Humlebaek

International Classification:

A61B 17/04

US Classification:

606139

Abstract:

A suture fixation system includes a suture assembly having an anchor, an introducer, and a delivery device. The introducer is attachable to a finger of a person and includes a platform attached to an exterior of the introducer and a zip line attached to the platform. The delivery device is movable along the zip line and configured to removably retain the anchor. The introducer allows the finger to identify a target landmark within a patient and the delivery device is movable along the zip line and attachable to the platform to position the anchor for insertion to the target landmark.

US Patent:

20110092987, Apr 21, 2011

Filed:

Oct 15, 2010

Appl. No.:

12/905103

Inventors:

Allen Gaynor - Coon Rapids MN, US
Michael K. Luk - Hopkins MN, US
Steven McClurg - Roseville MN, US
Michael M. Witzmann - Minneapolis MN, US
Ying Zheng - Stamford CT, US

Assignee:

COLOPLAST A/S - Humlebaek

International Classification:

A61B 17/04

US Classification:

606139

Abstract:

A suture fixation system includes a suture assembly having an anchor, an introducer, and a delivery device. The introducer is attachable to a finger of a person and includes a platform attached to an exterior of the introducer and a zip line attached to the platform. The delivery device is movable along the zip line and configured to removably retain the anchor. The introducer allows the finger to identify a target landmark within a patient and the delivery device is movable along the zip line and attachable to the platform to position the anchor for insertion to the target landmark.

US Patent:

20110092991, Apr 21, 2011

Filed:

Oct 20, 2009

Appl. No.:

12/581893

Inventors:

Allen Gaynor - Coon Rapids MN, US
Michael K. Luk - Hopkins MN, US
Steven McClurg - Roseville MN, US
Michael M. Witzmann - Minneapolis MN, US
Ying Zheng - Stamford CT, US

Assignee:

Coloplast A/S - Humlebaek

International Classification:

A61B 17/04

US Classification:

606148

Abstract:

A method of fixing a suture to tissue of a patient includes placing an introducer onto a finger, the introducer including a zip line trailing from a proximal end of the introducer. The method additionally includes identifying a landmark with the finger, guiding a delivery device along the zip line toward the introducer, where the delivery device maintaining an anchor attached to a suture line, and ejecting the anchor from the delivery device and into the tissue of the patient.