DR. ANTHONY T YEUNG
Medical Practice at Myrtle Ave, Phoenix, AZ

7601172, Oct 13, 2009

Nov 14, 2005

11/273299

Jerome Segal - Rockville MD, US
Matthew Thomas Yurek - San Diego CA, US
Hansen A. Yuan - Syracuse NY, US
Anthony Tung Yeung - Phoenix AZ, US

Ouroboros Medical, Inc. - Pleasanton CA

A61F 2/44

623 1711, 623 1712

The present invention relates to a device and method which may be used to reinforce the native annulus during spinal surgery. The device is a catheter based device which is placed into the inter-vertebral space following discectomy performed by either traditional surgical or endoscopic approaches. The distal end of the catheter is comprised of an expansile loop which may be increased in diameter by advancement of a portion of the catheter via its proximal end, such proximal end remaining external to the body. The expansile loop may be formed such that when the loop is diametrically contracted the loop feeds into its other end, similar to a snake eating its own tail. Stabilization of the outer portion of the loop and pulling out the inner portion will thereby increase the overall diameter of the loop while maintaining it as a closed loop or torus. The expansile loop then uses an attachment means to secure it to substantially healthy tissues of the annulus, nucleus, or endplates. The present invention comprises four embodiments and can be used to 1) facilitate disk fusing, 2) perform an artificial replacement of the nucleus, 3) perform an artificial replacement of the annulus, or 4, perform an artificial replacement of both the nucleus and annulus.

7547319, Jun 16, 2009

Feb 22, 2006

11/359335

Jerome Segal - Rockville MD, US
Matthew Thomas Yurek - San Diego CA, US
Hansen A. Yuan - Syracuse NY, US
Anthony Tung Yeung - Phoenix AZ, US

Ouroboros Medical - San Diego CA

A61B 17/88

606279, 606246, 623 1711, 623 1712, 623 1716

The present invention relates to a device and method to 1) facilitate disk fusing, 2) perform an artificial replacement of the nucleus, 3) perform an artificial replacement of the annulus, or 4, perform an artificial replacement of both the nucleus and annulus. The device is designed to be placed into the inter-vertebral space following diskectomy. The invention includes a delivery catheter and an expandable continuous mesh loop that has a torus configuration with a lumen within the mesh loop and a center hole. The mesh loop can be diametrically increased or contracted in diameter by the control element acting on the mesh loop. The mesh loop may be formed of a woven or braided material from a polymer such as PEEK (polyetheretherketone), nylon, polyurethane, polyester polyethylene, polypropylene or any other biocompatible polymers, or formed from a metallic braid of stainless steel, elgiloy, Nitinol, or any other biocompatible metals.

2013031, Nov 21, 2013

May 19, 2013

13/897427

Laura Tyler Perryman - Scottsdale AZ, US
Chad Andresen - Chandler AZ, US
Gary King - Fridley MN, US
Anthony Yeung - Phoenix AZ, US

Neural Diabetes, LLC - Scottsdale AZ

A61N 1/05, A61N 1/372

607 72, 607117

A method for modulating nerve tissue in a body of a patient includes implanting a wireless stimulation device in proximity to a dorsal root ganglion or an exiting nerve root such that an electrode, circuitry and a receiving antenna are positioned completely within the body of the patient. An input signal containing electrical energy and waveform parameters is transmitted to the receiving antenna(s) from a control device located outside of the patient's body via radiative coupling. The circuitry within the stimulation device generates one or more electrical impulses and applies the electrical impulses to the dorsal root ganglion or the exiting nerve roots through the electrode.

2011027, Nov 3, 2011

Oct 29, 2010

12/916061

Matthew Yurek - San Diego CA, US
Hansen Yuan - Naples FL, US
Anthony Yeung - Phoenix AZ, US
Craig Litherland - Menlo Park CA, US
Kurt Veeder - Danville CA, US
Robert Huffman - San Diego CA, US

A61F 2/44

623 1716

The present invention relates to a device and method to perform 1) disc fusion, 2) artificial replacement of the nucleus, 3) artificial replacement of the annulus, or 4) artificial replacement of both the nucleus and annulus. The device is designed to be placed into the intervertebral space following discectomy. The invention includes a delivery catheter and an substantially fixed sized mesh loop with a lumen within the mesh loop and a center hole. The mesh loop partially self expands diametrically in diameter upon removal of the introducer sheath and can be further expanded by mechanical means.