HERBERT RUDOLPH RADISCH, JR
Pilots at Belle Fleur Way, San Diego, CA

4895166, Jan 23, 1990

Nov 23, 1987

7/123713

Andrew F. Farr - San Diego CA
Herbert R. Radisch - San Diego CA

Interventional Technologies, Inc. - San Diego CA

A61B 1000

128751

A cutter penetrates at its forward end into, and excises, obstructive tissue in a lumen in a living being by providing two spaced external segments of a conical generally hollow portion with cutting surfaces at their edges. The cutter may have a forward portion of restricted dimensions to facilitate the penetration of the cutter into the obstructive tissue. A progressively expanding portion such as a truncated cone extends rearwardly from the portion of restricted dimensions. In this way, the cutter expands the area of excision of the obstructive tissue from the lumen wall at progressive positions rearwardly from the forward end. The obstructive tissue in the lumen at the progressively expanding positions may be excised at the positions of penetration of the obstructive tissue by rotating the cutter manually or by a motor. The cutter may then be moved forwardly to penetrate the obstructive tissue through an additional distance in the lumen. The cutter may also have a hollow portion of substantially constant dimensions, such as a hollow cylinder, at the laterally expanded end.

5742019, Apr 21, 1998

Oct 23, 1995

8/546676

Herbert R. Radisch - San Diego CA

InterVentional Technologies Inc. - San Diego CA

B23H 900

219 6917

A method for manufacturing an atherectomy cutter having a positive angle of attack which includes the following steps: forming a rod having a longitudinal axis into a cutter blank having a first cylindrical section, a second cylindrical section, and a uniformly tapered section therebetween; boring an axial passageway through the cutter blank to create walls of substantially similar thickness in each section of the cutter blank; grinding a pair of diametrically opposed flats on the external surface of the uniformly tapered section of the cutter blank; and removing the wall portions of the tapered section between the flats to create a pair of blades.

5800450, Sep 1, 1998

Oct 3, 1996

8/726401

Banning Gray Lary - Miami FL
Herbert R. Radisch - San Diego CA

InterVentional Technologies Inc. - San Diego CA

A61B 1714, A61B 1732, A61B 2900, A61B 1900

606180

The present invention is a device and a method for boring a perfusion channel into the myocardial tissue of a patient. Structurally, the present invention includes a positioning catheter and a cutting catheter. The positioning catheter is formed with an inflation lumen and a deployment lumen and has an inflatable balloon mounted at its distal end. The cutting catheter has a sharpened distal end and is advanceable through the deployment lumen of the positioning catheter. Advancement of the cutting catheter through the deployment lumen causes the distal end of the cutting catheter to be directed radially outward from the positioning catheter. In use, the positioning catheter is positioned within a target vessel. The inflatable balloon is then expanded to anchor the distal end of the positioning catheter. The cutting catheter is then advanced through the deployment lumen, projecting the distal end of the cutting catheter radially outward from the positioning catheter, boring a perfusion channel in the tissue adjacent to the target vessel.

6296651, Oct 2, 2001

Mar 7, 2000

9/520070

Banning Gray Lary - Miami FL
Herbert R. Radisch - San Diego CA

Interventional Technologies, Inc. - San Diego CA

A61B 1732

606170

The present invention is a device and a method for boring a perfusion channel from a coronary artery into a cardiac muscle of a patient. Structurally, the present invention includes a positioning catheter, anchor means and a cutting catheter. The cutting catheter includes a plurality of blades and is advanceable through a deployment lumen of the positioning catheter. Advancement of the cutting catheter through the deployment lumen causes a distal end of the cutting catheter to project laterally from the positioning catheter. In use, the positioning catheter is positioned within the coronary artery. The anchor means is then expanded to anchor the positioning catheter within the artery. The cutting catheter is then advanced through the deployment lumen to bore one or more perfusion channels in the myocardial tissue.

2002014, Oct 10, 2002

Mar 20, 2002

10/103411

Charles Craig - Lakeside CA, US
Herbert Radisch - San Diego CA, US
Thomas Trozera - Del Mar CA, US

C22C038/38, C22C038/58

148/327000, 420/057000

The present invention is directed towards an austenitic, stainless steel series 300 alloy having improved radiopaque characteristics. The modified stainless steel alloy consists essentially of, in weight percent, about whereby variable “X” could be comprised from a group consisting of Gold, Osmium, Palladium, Platinum, Rhenium, Tantalum, Tungsten or Iridium. The alloy provides a unique combination of strength, ductility, corrosion resistance, and other mechanical properties which also has improved radiopaque characteristics.

5624433, Apr 29, 1997

Apr 24, 1995

8/429917

Herbert R. Radisch - San Diego CA

Interventional Technologies Inc. - San Diego CA

A61B 1736

606 7

A device for incising and dilating a stenosis in a vessel of a patient includes a catheter having an inflatable balloon near its distal end. A laser rod formed with a light groove on its distal portion is bonded to the catheter with the light groove positioned on the balloon. In the operation of the device, the catheter and laser rod are inserted through the vessel to place the balloon and light groove in contact with the stenosis. Laser light is then directed through the laser rod for emission from the light groove to incise the stenosis. Simultaneously, the balloon is inflated. This inflation of the balloon causes further incision of the stenosis and dilatation of the stenosis.

6117153, Sep 12, 2000

Jul 27, 1998

9/123758

Banning Gray Lary - Miami FL
Herbert R. Radisch - San Diego CA

Interventional Technologies, Inc. - San Diego CA

A61B 1732

606170

The present invention is a device and a method for boring a perfusion channel from a coronary artery into a cardiac muscle of a patient. Structurally, the present invention includes a positioning catheter, anchoring structure and a cutting catheter. The cutting catheter includes a plurality of blades and is advanceable through a deployment lumen of the positioning catheter. Advancement of the cutting catheter through the deployment lumen causes a distal end of the cutting catheter to project laterally from the positioning catheter. In use, the positioning catheter is positioned within the coronary artery. The anchoring structure is then expanded to anchor the positioning catheter within the artery. The cutting catheter is then advanced through the deployment lumen to bore one or more perfusion channels in the myocardial tissue.

2005024, Oct 27, 2005

Apr 21, 2004

10/828699

Karen Cheves - Escondido CA, US
Loren Crow - Las Mesa CA, US
Gregory Kelley - San Diego CA, US
Steven McAuley - Chanhassen MN, US
Herbert Radisch - San Diego CA, US
Ricardo Roman - San Diego CA, US
Show-Mean Wu - San Diego CA, US

A61M029/00

604103080, 606194000, 606167000

A cutting balloon catheter and methods of making and using the same. The balloon catheter may include a catheter shaft having a balloon coupled thereto. A cutting member or blade may be coupled to the balloon. The cutting member may include one or more traction members or a traction region that can, for example, improve traction between the balloon and a target site.

2002019, Dec 19, 2002

Mar 30, 2001

09/823308

Herbert Radisch - San Diego CA, US
Thomas Trozera - Del Mar CA, US
Charles Craig - Lakeside CA, US

A61F002/06

623/001150, 623/001340

The present invention is directed towards a stent fabricated from an austenitic 300 series stainless steel alloy having improved radiopaque characteristics. The modified stainless steel alloy consists essentially of, in weight percent, about whereby variable “X” could be comprised from a group consisting of Gold, Osmium, Palladium, Platinum, Rhenium, Tantalum, or Tungsten. The alloy provides a unique combination of strength, ductility, corrosion resistance, and other mechanical properties which also has improved radiopaque characteristics in the thin sections necessary to manufacture a stent and is low toxicity.

2005024, Oct 27, 2005

Apr 21, 2004

10/828572

Steven McAuley - Chanhassen MN, US
Karen Cheves - Escondido CA, US
Loren Crow - Las Mesa CA, US
Gregory Kelley - San Diego CA, US
Herbert Radisch - San Diego CA, US
Ricardo Roman - San Diego CA, US
Show-Mean Wu - San Diego CA, US

A61M029/00

606194000, 604103080, 604915000, 604103040

Balloon catheters and methods of making and using the same. A balloon catheter may include a catheter shaft and a balloon coupled thereto. A traction member may be coupled to the balloon catheter adjacent the balloon and may extend along a portion or all of the length of the balloon. The traction member can improve traction between the balloon and a target site.