Ronald A Coleman

Address:

9311 Beowulf Cir, Rosedale, MD 21237

Phone:

4106873367

VIN:

5N1AR18WX7C636406

Make:

NISSAN

Model:

PATHFINDER

Year:

2007

US Patent:

6695810, Feb 24, 2004

Filed:

May 16, 2001

Appl. No.:

09/859884

Inventors:

Frederick Gotha - Arcadia CA
Jeffrey S. Kadan - Redondo Beach CA
Ronald Coleman - Oakland CA

Assignee:

Advanced Interventional Technologies, Inc. - Redondo Beach CA

International Classification:

A61M 2900

US Classification:

604 9904, 60410105, 60410202

Abstract:

A medical device system and method allows an arterial bypass graft to be proximally anastomosed to an aorta during a beating heart procedure without substantial loss of blood by use of an endolumenal aorta isolation assembly provided along the distal end portion of an elongate catheter body. The aorta isolation assembly includes proximal and distal portions that are separated by an isolation region and that are adjustable to first and second extended positions, respectively, which are adapted to circumferentially engage the aortic wall and isolate upstream and downstream aspects of an exterior space between the elongate body and the aortic wall. The intermediate region is adapted to be positioned along the proximal anastomosis site such that the distal and proximal portions when adjusted to the first and second extended positions circumferentially engage the aortic wall on upstream and downstream sides of the proximal anastomosis site. Blood flowing within the aorta is thereby isolated from the proximal anastomosis site along the intermediate region and is shunted from an upstream region of the aorta, through the distal port into the flow lumen, proximally along the flow lumen, out from the flow lumen though the proximal port.

US Patent:

20150025311, Jan 22, 2015

Filed:

Mar 19, 2014

Appl. No.:

13/999743

Inventors:

Jeffrey S. Kadan - Laguna Niguel CA, US
Ronald Coleman - Oakland CA, US

International Classification:

A61B 1/317
A61B 17/34
A61F 2/46
A61B 1/018
A61B 1/07
A61B 1/06
A61B 1/00
A61M 1/00

US Classification:

600104

Abstract:

A system for performing arthroscopic lavage, directed tissue drying, and the accurate placement of a biocompatible tissue scaffold for the adherence of autologous regenerated cells through a small single port of entry into a joint compartment. The system is comprised of a handpiece having valves for irrigation and suctioning and a dual valve swivel cannula attached to the handpiece. The system includes a mobile cart, high resolution camera, light source, optical coupler, high-resolution monitor, an air compressor to power individually controlled irrigation pumps to deliver irrigation fluid to a handpiece and a vacuum suction console to collect fluid. The system also includes an insufflator to maintain distension immediately following the lavage and to dry tissue in preparation for directed tissue scaffold and regenerative cell placement. The delivery system achieves accurate biocompatible tissue scaffold placement to a specific tissue site or sites within the joint utilizing a small diameter arthroscope for direct visualization while inserting and advancing a grasping instrument or device through one of two valves located on the cannula. While holding the tissue scaffold in the jaws of the grasping device, it is advanced through the cannula lumen and extended beyond the distal tip and placed on the dried tissue site. Removing the grasping device, a catheter is then inserted and advanced through a cannula valve into the lumen and extended beyond the distal tip to the scaffold placed and prepared tissue site. A means of applying torque to the catheter tip further enhances the ability for accurate, exact placement of cells to a specific scaffold receptive tissue site. The cells are then injected into and through the catheter and applied under direct visualization to the scaffold. As comprised, the small single-port system allows a physician to perform the diagnosis, clean the joint space of debris and degradative enzymes using pressurized irrigation and suction, followed by a rapid conversion from a sterile saline fluid distension media to a dry gas CO2 distension media and directed tissue drying, and the accurate placement of a biocompatible tissue scaffold for the adherence and accurate placement of regenerated cells through a catheter to a specific tissue site within a joint.