Wayne Ogata

US Patent:

7918859, Apr 5, 2011

Filed:

Feb 12, 2007

Appl. No.:

11/706041

Inventors:

Osamu Katoh - Toyohashi, JP
Wayne Ogata - San Ramon CA, US

Assignee:

Retro Vascular, Inc. - San Ramon CA

International Classification:

A61B 17/24

US Classification:

606113

Abstract:

A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. In this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion and by appropriately maneuvering each member, a continuous channel is created. Additional elements such as capture devices, dilators and injection catheters are also disclosed.

US Patent:

20080306499, Dec 11, 2008

Filed:

Apr 23, 2008

Appl. No.:

12/150111

Inventors:

Osamu Katoh - Toyohashi, JP
Wayne Ogata - San Ramon CA, US

Assignee:

Retro Vascular, Inc. - San Ramon CA

International Classification:

A61B 17/22

US Classification:

606159

Abstract:

A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. In this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion and by appropriately maneuvering each member, a continuous channel is created. Additional elements such as capture devices, dilators and injection catheters are also disclosed.

US Patent:

20100056911, Mar 4, 2010

Filed:

Sep 3, 2009

Appl. No.:

12/553842

Inventors:

Wayne Ogata - San Ramon CA, US
Mutsuo Nakayama - Hamada, JP

Assignee:

FREEDOM MEDI-TECH VENTURES LLC - San Ramon CA

International Classification:

A61M 25/10
A61B 6/00
A61B 19/00

US Classification:

600435, 606129

Abstract:

A catheter device for providing visualization as well as support and/or stability for blood vessels during procedures for inserting electrical leads. The catheter device comprises a longitudinal member having a distal end and a proximal end, an expandable element near the distal end of the longitudinal member for providing support to the blood vessel, and a contrast release port near the distal end of the longitudinal member for releasing a contrast medium into the blood vessel to visualize the blood vessel.The expandable element may comprise an inflatable balloon, or a plurality of compressible elements that expand to a balloon like shape, or a compressible coil housed in a protective sheath that retracts to allow the coil to expand. The catheter device comprises two inflatable balloons. At its proximal end, the catheter device comprises one or more inflation ports for inflating the one or more balloons.To allow for visualization using a contrast agent, the catheter device further comprises a contrast injection port near its proximal end, and a contrast release port near its distal end.

US Patent:

20100256616, Oct 7, 2010

Filed:

Apr 2, 2010

Appl. No.:

12/753844

Inventors:

Osamu Katoh - Nagoya, JP
Wayne Ogata - San Ramon CA, US

International Classification:

A61B 17/22
A61B 18/18
A61B 18/20
A61H 1/00

US Classification:

606 7, 606 33, 601 2, 606200, 606 41

Abstract:

A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. In this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion. By appropriately maneuvering each member and applying radiofrequency energy between the proximal and distal ends of the occlusion, a continuous channel is created.

US Patent:

20100292685, Nov 18, 2010

Filed:

Sep 23, 2008

Appl. No.:

12/680500

Inventors:

Osamu Katoh - Toyohashi, JP
Wayne Ogata - San Ramon CA, US

Assignee:

RETROVASCULAR, INC. - San Ramon CA

International Classification:

A61B 18/18
A61B 17/22

US Classification:

606 33, 606128

Abstract:

A method and systems for treating chronic total occlusions (CTOs), particularly those that are difficult to treat. CTO recanalization is achieved using radiofrequency ablation directed at the occlusion between antegrade and retrograde guidewires placed on either side of the occlusion.

US Patent:

20110166591, Jul 7, 2011

Filed:

Feb 28, 2011

Appl. No.:

13/037304

Inventors:

Osamu KATOH - Toyohashi, JP
Wayne OGATA - San Ramon CA, US

International Classification:

A61M 29/02

US Classification:

606198

Abstract:

A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. In this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion and by appropriately maneuvering each member, a continuous channel is created. Additional elements such as capture devices, dilators and injection catheters are also disclosed.

US Patent:

20120289983, Nov 15, 2012

Filed:

Feb 14, 2011

Appl. No.:

13/574587

Inventors:

Wayne Ogata - San Ramon CA, US
Osamu Katoh - Toyohashi, JP

Assignee:

RETROVASCULAR, INC. - Pleasanton CA

International Classification:

A61B 17/22

US Classification:

606159

Abstract:

Devices and methods for recanalization of occluded body vessels using novel guidewires. A novel double-sided guidewire comprises a cross-section tapering from a more rigid middle section towards more flexible head sections. A first head of the guidewire is inserted into the occluded body vessel in a retrograde direction to traverse an occlusion. The guidewire is further advanced in the retrograde direction such that the first head and a portion of the middle section are retrieved from the body, thereby positioning the remainder of the guidewire traversing the occlusion in an antegrade direction and allowing for over the wire re-canalization techniques in the antegrade direction.

US Patent:

20120296262, Nov 22, 2012

Filed:

Jul 27, 2012

Appl. No.:

13/560841

Inventors:

Wayne Ogata - San Ramon CA, US
Osamu Katoh - Toyohashi, JP

Assignee:

RETROVASCULAR, INC. - Pleasanton CA

International Classification:

A61M 37/00

US Classification:

604 20, 604264

Abstract:

A device for delivering a composition to a hollow body region is disclosed. In one aspect, the device comprises a first longitudinal member and a second longitudinal member. Both of the longitudinal members may comprise conductive electrodes. The longitudinal members are further configured to be connected to an energy source such that the conductive electrodes are configured to generate an energy field. At least one of the longitudinal members further comprises a delivery element configured to deliver at least one composition to the body region, such that the composition is delivered in a direction that is influenced by the generated energy field. In one aspect, the body region is a vessel comprising an occlusion.