Mark A Mathis

US Patent:

6562067, May 13, 2003

Filed:

Jun 8, 2001

Appl. No.:

09/877506

Inventors:

Mark Mathis - Kirkland WA

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

A61F 206

US Classification:

623 116, 623 12, 606198, 606195

Abstract:

A stent comprises a lattice of interconnecting elements defining a substantially cylindrical configuration having a first open end and a second open end. The lattice has a locked configuration and an open configuration. The stent also comprises a plurality of bridges connecting the interconnecting elements wherein each bridge interlocks with an adjacent bridge in the locked configuration and each bridge separates from the adjacent bridge in the open configuration. A second embodiment for the stent also comprises a lattice of interconnecting elements including a plurality of struts wherein each strut interlocks with an adjacent strut in the locked configuration and each strut separates from the adjacent strut in the open configuration.

US Patent:

6599314, Jul 29, 2003

Filed:

Jun 8, 2001

Appl. No.:

09/877672

Inventors:

Mark Mathis - Kirkland WA

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

A61F 206

US Classification:

623 111, 623 112, 623 115

Abstract:

An apparatus for stenting a vessel comprises a stent having a lattice of interconnecting elements defining a substantially cylindrical configuration having a first open end and a second open end wherein the lattice is movable between a closed configuration and an open configuration. In one embodiment, the stent includes a plurality of interlocking bridges. In a second embodiment, the stent includes a plurality of interlocking struts. The apparatus further includes a catheter having an inner sleeve and an expandable member on the inner sleeve wherein the expandable member is movable between a collapsed state and an expanded state. For either embodiment, the stent is secured to the catheter over the expandable member when the expandable member is in the collapsed state and the stent is in the locked configuration. The stent is separated from the catheter when the expandable member is in the expanded state and the stent is in the open configuration. A method for stenting the vessel also includes deploying both stent embodiments at a desired location within a vessel.

US Patent:

6676702, Jan 13, 2004

Filed:

May 14, 2001

Appl. No.:

09/855946

Inventors:

Mark Mathis - Kirkland WA

Assignee:

Cardiac Dimensions, Inc. - Kirkland WA

International Classification:

A61F 224

US Classification:

623 236, 623 111

Abstract:

An assembly for effecting the condition of a mitral valve of a heart includes a mitral valve therapy device, a guide wire, and a guide tube. The mitral valve therapy device is configured to reshape the mitral valve annulus of the heart when placed within the coronary sinus adjacent the mitral valve annulus. The guide wire is configured to be fed into the coronary sinus of the heart adjacent the mitral valve annulus. The guide tube has a distal end, a proximal end, and a lumen extending between the distal end and the proximal end. The guide tube further includes a side port, intermediate the distal and proximal ends which communicates with the lumen. This permits the guide tube to be slidingly received on the guide wire with the guide wire extending from the distal end, through the lumen, and out the side port. In use, the guide tube is slid along the guide wire into the coronary sinus. The mitral valve therapy device is then delivered by the guide tube into the coronary sinus adjacent the mitral valve annulus.

US Patent:

6793673, Sep 21, 2004

Filed:

Dec 26, 2002

Appl. No.:

10/331143

Inventors:

Leonard Kowalsky - Bothell WA
Gregory D. Nieminen - Bothell WA
Ryan H. Braxtan - Snoqualmie WA
Mark L. Mathis - Kirkland WA

Assignee:

Cardiac Dimensions, Inc. - Kirkland WA

International Classification:

A61F 224

US Classification:

623 236

Abstract:

An assembly for effecting the condition of a mitral valve annulus includes a mitral valve therapy device, a coupling structure carried by the device, a catheter, a second coupling structure, and a locking member. To implant the device, the device is first releasably locked to a pushing member by the coupling structures and the locking member. When the device is positioned within the coronary sinus adjacent the mitral valve annulus and deployed, the coupling structures may be released from each other by the release of the locking member.

US Patent:

6797001, Sep 28, 2004

Filed:

Mar 11, 2002

Appl. No.:

10/095507

Inventors:

Mark L. Mathis - Kirkland WA
Gregory D. Nieminen - Bothell WA

Assignee:

Cardiac Dimensions, Inc. - Kirkland WA

International Classification:

A61F 206

US Classification:

623 237, 623 236, 623904, 600 16, 128898

Abstract:

A mitral valve therapy device effects the condition of a mitral valve annulus of a heart. The device includes an elongated member dimensioned to be placed in the coronary sinus of the heart adjacent the mitral valve annulus. The elongated member is flexible when placed in the heart in a first orientation to position the device in the coronary sinus adjacent the mitral valve annulus and relatively inflexible when rotated into a second orientation after the device is positioned in the coronary sinus adjacent to the mitral valve annulus to substantially straighten and increase the radius of curvature of the mitral valve annulus.

US Patent:

6824562, Nov 30, 2004

Filed:

May 8, 2002

Appl. No.:

10/142637

Inventors:

Mark L. Mathis - Kirkland WA
Leonard Kowalsky - Bothell WA
David G. Reuter - Bothell WA
Cruz Beeson - Kirkland WA

Assignee:

Cardiac Dimensions, Inc. - Kirkland WA

International Classification:

A61F 206

US Classification:

623 236, 623 136, 623 111

Abstract:

An anchor anchors a therapeutic device having an elongated body within a body lumen. The anchor includes a fixation member carried on the device which is adjustable from a first configuration that permits placement of the device in the body lumen to a second configuration that anchors the device within the body lumen. The anchor further includes a lock that locks the fixation member in the second configuration. The fixation member may be locked in any one of a plurality of intermediate points between the first configuration and a maximum second configuration.

US Patent:

6908478, Jun 21, 2005

Filed:

Dec 5, 2001

Appl. No.:

10/011867

Inventors:

Clifton A. Alferness - Redmond WA, US
John M. Adams - Sammamish WA, US
Mark L. Mathis - Kirkland WA, US
David G. Reuter - Bothell WA, US

Assignee:

Cardiac Dimensions, Inc. - Kirkland WA

International Classification:

A61F002/06

US Classification:

623 111, 623 236, 623 237, 606108

Abstract:

A device, system, and method effects mitral valve annulus geometry of a heart. The device includes a first anchor configured to be positioned within and fixed to the coronary sinus of the heart adjacent the mitral valve annulus within the heart. A cable is fixed to the first anchor and extends proximately therefrom and slidingly through a second anchor which is positioned and fixed in the heart proximal to the first anchor. A lock locks the cable to the second anchor when tension is applied to the cable for effecting the mitral valve annulus geometry.

US Patent:

6949122, Sep 27, 2005

Filed:

Nov 1, 2001

Appl. No.:

10/003910

Inventors:

John M. Adams - Sammamish WA, US
David G. Reuter - Bothell WA, US
Mark L. Mathis - Kirkland WA, US
Scott J. Wolf - Bellevue WA, US

Assignee:

Cardiac Dimensions, Inc. - Kirkland WA

International Classification:

A61F002/24

US Classification:

623 236, 623 211

Abstract:

A mitral valve therapy device and method treats dilated cardiomyopathy. The device is configured to be placed in the coronary sinus of a heart adjacent to the mitral valve annulus. The device includes a force distributor that distributes an applied force along a pericardial wall of the coronary sinus, and a force applier that applies the applied force to one or more discrete portions of a wall of the coronary sinus adjacent to the mitral valve annulus to reshape the mitral valve annulus in a localized manner.