Michael A Garrison

US Patent:

7604661, Oct 20, 2009

Filed:

Oct 31, 2007

Appl. No.:

11/931182

Inventors:

Dusan Pavcnik - Portland OR, US
Thomas A. Osborne - Bloomington IN, US
Brian C. Case - Lake Villa IL, US
Jacob A. Flagle - Indianapolis IN, US
Michael L. Garrison - Indianapolis IN, US
Andrew K. Hoffa - Bloomington IN, US
Darin G. Schaeffer - Bloomington IN, US
Richard B. Sisken - West Lafayette IN, US

Assignee:

Cook Incorporated - Bloomington IN
William Cook Europe ApS - Bjaeverskov
MED Institute - West Lafayette IN
Oregon Health Sciences University - Portland IN

International Classification:

A61F 2/06
A61F 2/24

US Classification:

623 124, 623 214, 623 217

Abstract:

An valve prosthesis, such as an artificial venous valve, having a support frame and leaf structure comprising one or more leaflets in which the outer edge of each leaflet engages the inner circumference of the bodily passageway along a serpentine path urged against the passageway by an expandable frame, while the inner edges move in response to fluid to restrict retrograde flow. Optionally, one or more elements can extend from the support frame/leaf structure to provide centering support and/or protection from the leaflet adhering to the vessel wall. In one embodiment, the centering support structure comprises a second or third expandable frames attached to and extending from the proximal and/or distal ends of main valve structure and support frame. In another embodiment, one or more support elements extend outward from the valve support frame to engage the vessel wall to provide greater longitudinal stability.

US Patent:

7628803, Dec 8, 2009

Filed:

Aug 15, 2003

Appl. No.:

10/642372

Inventors:

Dusan Pavcnik - Portland OR, US
Thomas A. Osborne - Bloomington IN, US
Brian C. Case - Bloomington IN, US
Jacob A. Flagle - Bloomington IN, US
Michael L. Garrison - Bloomington IN, US
Andrew K. Hoffa - Bloomington IN, US
Darin G. Schaeffer - Bloomington IN, US
Richard B. Sisken - West Lafayette IN, US

Assignee:

Cook Incorporated - Bloomington IN
Oregon Health Science University - Portland OR

International Classification:

A61F 2/06
A61F 2/24

US Classification:

623 124, 623 214, 623 216

Abstract:

An valve prosthesis, such as an artificial venous valve, having a support frame and leaf structure comprising one or more leaflets in which the outer edge of each leaflet engages the inner circumference of the bodily passageway along a serpentine path urged against the passageway by an expandable frame, while the inner edges move in response to fluid to restrict retrograde flow. Optionally, one or more elements can extend from the support frame/leaf structure to provide centering support and/or protection from the leaflet adhering to the vessel wall. In one embodiment, the centering support structure comprises a second or third expandable frames attached to and extending from the proximal and/or distal ends of main valve structure and support frame. In another embodiment, one or more support elements extend outward from the valve support frame to engage the vessel wall to provide greater longitudinal stability.

US Patent:

8382822, Feb 26, 2013

Filed:

Oct 7, 2009

Appl. No.:

12/574870

Inventors:

Dusan Pavcnik - Portland OR, US
Brian C. Case - Lake Villa IL, US
Jacob A. Flagle - Indianapolis IN, US
Michael Garrison - Bloomington IN, US
Andrew K. Hoffa - Bloomington IN, US
Thomas A. Osborne - Bloomington IN, US
Darin G. Schaeffer - Bloomington IN, US
Richard B Sisken - West Lafayette IN, US

Assignee:

Cook Medical Technologies LLC - Bloomington IN
Oregon Health & Science University - Portland OR

International Classification:

A61F 2/06
A61F 2/24

US Classification:

623 124, 623 214, 623 216

Abstract:

A valve prosthesis, such as an artificial venous valve, having a support frame and leaf structure comprising one or more leaflets in which the outer edge of each leaflet engages the inner circumference of the bodily passageway along a serpentine path urged against the passageway by an expandable frame, while the inner edges move in response to fluid to restrict retrograde flow. Optionally, one or more elements can extend from the support frame/leaf structure to provide centering support and/or protection from the leaflet adhering to the vessel wall. In one embodiment, the centering support structure comprises a second or third expandable frames attached to and extending from the proximal and/or distal ends of main valve structure and support frame. In another embodiment, one or more support elements extend outward from the valve support frame to engage the vessel wall to provide greater longitudinal stability.

US Patent:

8444666, May 21, 2013

Filed:

Sep 12, 2003

Appl. No.:

10/662216

Inventors:

Dusan Pavcnik - Portland OR, US
Brian C. Case - Bloomington IN, US
John A. Kaufman - Lake Oswego OR, US
Michael L. Garrison - Bloomington IN, US
Jacob A. Flagle - Bloomington IN, US

Assignee:

Cook Medical Technologies LLC - Bloomington IN

International Classification:

A61B 17/00
A61F 2/06
A61F 2/82

US Classification:

606200, 623 112, 623 115

Abstract:

A filter may have an apical hub and a plurality of divergent legs. A first attachment member may be separate from, but attached to the second end of at least one of the plurality of divergent legs. A second attachment member may be separate from, but attached to a stent. The first and second attachment members may be separate from, but attachable to one another to releasably attach the filter to the stent. One of the first attachment member and the second attachment member may include an attachment wire that is positioned in a lumen of a tubular member or one of the first attachment member and the second attachment member may comprise a cannula. In some implementations, an upward motion applied to the retrieval connection member may disengage at least one attachment wire of the first attachment member from the second attachment member.

US Patent:

20050228479, Oct 13, 2005

Filed:

Jun 9, 2005

Appl. No.:

11/149721

Inventors:

Dusan Pavcnik - Portland OR, US
Brian Case - Bloomington IN, US
Christopher Dixon - Bloomington IN, US
Jacob Flagle - Indianapolis IN, US
Michael Garrison - Indianapolis IN, US
Andrew Hoffa - Bloomington IN, US
Ray Leonard - Bloomington IN, US

International Classification:

A61F002/06

US Classification:

623001110, 604524000

Abstract:

A delivery system () for implanting a medical device () such as a venous valve into the vasculature of a patient. The delivery system includes a delivery catheter () having a device-containing portion () adjacent to the distal end () thereof, and an inner member () extending through the catheter and beyond the distal end thereof, to an atraumatic distal tip portion () forward of the catheter distal end. Delivery catheter () includes inner tube (), flat wire coil () compression fitted therearound, and outer tube () mechanically connected to roughened outer surface () of the inner tube through the spacing of the coil. Delivery catheter () can be provided with a window () to allow fluoroscopic visualization of a stent valve within the delivery system.

US Patent:

20130226291, Aug 29, 2013

Filed:

Feb 25, 2013

Appl. No.:

13/775465

Inventors:

DUSAN PAVCNIK - PORTLAND OR, US
BRIAN C. CASE - LAKE VILLA IL, US
JACOB A. FLAGLE - INDIANAPOLIS IN, US
MICHAEL GARRISON - BLOOMINGTON IN, US
ANDREW K. HOFFA - BLOOMINGTON IN, US
THOMAS A. OSBORNE - BLOOMINGTON IN, US
DARIN G. SCHAEFFER - BLOOMINGTON IN, US
RICHARD B. SISKEN - WEST LAFAYETTE IN, US

International Classification:

A61F 2/24

US Classification:

623 213, 623 217

Abstract:

A valve prosthesis, such as an artificial venous valve, is described. The valve prosthesis has a support frame formed from a cannula and an attached covering that defines an opening adapted to move between a first position in which the opening is open to fluid flow and a second position in which the opening is closed to fluid flow. The support frame includes a leaflet support portion and a circumferential centering support element disposed adjacent the leaflet support portion with respect to a lengthwise axis of the support frame and mirroring the leaflet support portion with respect to a transverse axis of the support frame.