1
Roger N Hastings, Paul T Feld, Daniel M Lafontaine, Kenneth R Larson, Richard R Prather: Intravascular pressure and flow sensor. Scimed Life Systems, Robert E Atkinson, February 23, 1999: US05873835 (272 worldwide citation)

An intravascular device for measuring blood pressure and flow is disclosed, which includes an elongate shaft having a pressure transducer and a flow transducer connected to its distal end. The pressure transducer may be a ferrofluid-type pressure transducer and the flow transducer may be an anemomet ...


2
Roger N Hastings: Heated perfusion balloon for reduction of restenosis. SciMed Life Systems, Nawrocki Rooney & Sivertson, July 7, 1998: US05775338 (230 worldwide citation)

A method for inhibiting the restenosis of blood vessel walls after angioplasty, including the application of low grade heat to the vessel walls. A heat applying perfusion catheter is advanced to a recently dilatated vessel region. Heat is applied to the region walls to inhibit restenosis. A preferre ...


3
Andrew F Hall, Roger N Hastings, Rogers C Ritter: Method of magnetically navigating medical devices with magnetic fields and gradients, and medical devices adapted therefor. Stereotaxis, Harness Dickey & Pierce, September 18, 2001: US06292678 (182 worldwide citation)

A method of applying an elongate magnetic element to the surface of an internal body structure includes applying a magnetic field to the elongate magnetic element to orient the elongate magnetic element in a selected orientation; and applying a magnetic gradient to the elongate magnetic element to d ...


4
Stewart M Kume, Trac Le, Roger N Hastings: Intravascular balloon catheter for use in combination with an angioscope. Scimed Life Systems, Robert E Atkinson, May 2, 1995: US05411016 (175 worldwide citation)

A balloon dilatation catheter is disclosed which incorporates an elongate shaft which is at least partially optically transparent. The shaft includes an inflation lumen and a guide wire lumen extending therethrough in addition to an inflatable balloon connected to its distal end. The inflatable ball ...


5
Roger N Hastings: Method of and system for controlling magnetic elements in the body using a gapped toroid magnet. Stereotaxis, Bryan K Wheelock, November 21, 2000: US06148823 (175 worldwide citation)

A system for controlling a magnetic element within a selected region of a patient's body includes a magnet assembly comprising first and second mutually attracting, opposed magnet faces separated by a gap; and a magnet support for supporting the magnet assembly adjacent the selected region of the pa ...


6
Garland L Segner, Roger N Hastings, Michael Eng: Magnetically guidable electrophysiology catheter. Stereotaxis, Harness Dickey & Pierce, December 9, 2003: US06662034 (172 worldwide citation)

An electrophysiology catheter includes a tube having a proximal end, a distal end, and a lumen therebetween. The tube is preferably comprised of multiple sections of different flexibility, arranged so that the flexibility of the catheter increases from the proximal end to the distal end. There is a ...


7
Jeffrey M Garibaldi, Bevil J Hogg, Roger N Hastings, Brooke Ren: Methods of and apparatus for treating vascular defects. Stereotaxis, Harness Dickey & Pierce, April 23, 2002: US06375606 (170 worldwide citation)

A method of and apparatus for treating vascular defects. A catheter having a selectively energizeable coil on its distal end. The catheter is particularly adapted for the delivery of magnetic embolic materials. The coil can be energized to aid in the magnetic navigation of the catheter, to help reta ...


8
Jeffrey M Garibaldi, Bevil J Hogg, Roger N Hastings, Brooke Ren: Methods of and compositions for treating vascular defects. Stereotaxis, Harness Dickey & Pierce, April 2, 2002: US06364823 (159 worldwide citation)

Embolic compositions for treating vascular defects such as aneurysms include a mixture of a biocompatible polymer material, a biocompatible solvent, and preferably also an adhesive. The compositions preferably further comprise magnetic particles for controlling the delivery of the embolic agent. The ...


9
Andrew F Hall, Roger N Hastings, Walter M Blume: Cardiac methods and system. Sterotaxis, Harness Dickey & Pierce, October 2, 2001: US06298257 (142 worldwide citation)

A method of applying a magnetic medical device to the surface of an internal body structure, the medical device having a magnetically responsive element associated with its distal end, the method comprising applying a magnetic field to the distal end of the magnetic medical device to apply a measure ...


10
Jeffrey M Garibaldi, Bevil J Hogg, Roger N Hastings, Brooke Ren: Methods of and compositions for treating vascular defects. Stereotaxis, Harness Dickey & Pierce, October 2, 2001: US06296604 (139 worldwide citation)

A magnetic embolic agent for magnetic placement in a vascular defect includes a bicompatible polymer, a solvent, an adhesive, and magnetic particles.