1
Mark A Rydell: Balloon atheroectomy catheter. Schneider Shiley, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, November 15, 1988: US04784636 (191 worldwide citation)

A catheter assembly especially designed for the performance of atherectomy procedures which includes a guide catheter having an inflatable balloon disposed on the distal end portion thereof, the guide catheter being dimensioned to receive in its lumen an elongated drive tube having an annular cuttin ...


2
Eugen Hofmann: Method for opening constricted regions in the cardiovascular system. Schneider Shiley, Charles J Knuth, Peter C Richardson, Lawrence C Akers, November 29, 1988: US04787388 (165 worldwide citation)

A catheter for opening constricted regions in the cardiovascular system includes an expandable dilatation zone comprising three dilatation elements arranged around a support tube. The dilatation elements are of tubular configuration, and each communicates at one end with a passage in the support tub ...


3
Wade M Johnson, Edward A Barlow, Gregory G Brucker: Hemostasis valve. Schneider Shiley, Haugen and Nikolai, June 12, 1990: US04932633 (134 worldwide citation)

A hemostasis valve gasket for use in an introducer which is integrally formed from an elastomeric material so as to exhibit resiliency and which is designed to close about small diameter objects, such as a guide wire and about larger diameter objects such as a working catheter or guide catheter to p ...


4
Richard L Goodin, Mark A Rydell: Single plunger inflation device for angioplasty catheter. Schneider Shiley, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, February 9, 1988: US04723938 (126 worldwide citation)

An inflation/deflation device for an angioplasty balloon catheter which permits quick inflation to an approximate working pressure followed by a fine but slower adjustment to a final desired pressure. The device includes a housing containing a syringe of the type having a cylindrical chamber contain ...


5
Mark A Rydell: Inflation device for angioplasty catheter. Schneider Shiley, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, July 19, 1988: US04758223 (119 worldwide citation)

A hand-operated device for inflating the expander on a balloon-type catheter and for perfusing fluids through the catheter and out its distal end. The inflator device comprises a housing containing a relatively large diameter and volume syringe and a relatively small diameter and volume syringe and ...


6
Mark A Rydell, Richard L Goodin: Catheter Y-connector with guidewire locking means. Schneider Shiley, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, July 4, 1989: US04844092 (104 worldwide citation)

A Y-connector for attachment to the proximal end of a guide catheter which includes an arm projecting from the side of the Y-connector, the arm including a clamp for securing a catheter guidewire against movement relative to the guide catheter.


7
Mark A Rydell: Self-purging balloon catheter. Schneider Shiley, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, March 14, 1989: US04811737 (91 worldwide citation)

A tubular catheter having an inflatable expander member mounted thereon at the distal end thereof is provided with an extremely fine slit passing through the wall of the tubular catheter such that when a liquid is introduced under pressure into the proximal end thereof for inflating the balloon, any ...


8
Mark A Rydell, Rick L Shockey: Method of bonding a hub to a Teflon-lined catheter body. Schneider Shiley, Orrin M Haugen, Thomas J Nikolai, February 21, 1989: US04806182 (65 worldwide citation)

A method of attaching a plastic hub member to the proximal end of a Teflon-lined thermoplastic tubular catheter so as to prevent delamination of the Teflon lining at the site of the attachment. The thermoplastic outer layer of the tubular catheter is removed in a grinding operation for a predetermin ...


9
Brian M Packard, Mark A Rydell: Steerable catheter guide. Schneider Shiley, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, June 27, 1989: US04841976 (54 worldwide citation)

A steerable catheter guide comprised of an outer tube and an inner member surrounded by and rotatable with respect to said outer tube is disclosed. The steerable catheter guide also includes a formable member bonded to said inner member and said outer tube in the area of their respective distal ends ...


10
Mark A Rydell: Bail-out catheter. Schneider Shiley, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, September 27, 1988: US04773432 (38 worldwide citation)

A catheter for maintaining the patency of a blood vessel damaged during the course of angiography or angioplasty procedures comprising a toroidal coil whose adjacent turns are tightly wound and in contact with one another over a majority of the length thereof but which are separated from one another ...