1
Harold D Kletschka: Angioplasty device and method of using the same. Dorsey & Whitney, January 3, 1989: US04794928 (433 worldwide citation)

An angioplasty device is disclosed for treatment of, or for compression and/or removal of an obstruction from, a vessel or vessel-like structure in medical, non-medical and industrial applications. The device incorporates a trap/barrier for trapping and removing particles that break away from the tr ...


2
Harold D Kletschka: Embolic protection device having expandable trap. Dorsey & Whitney, September 3, 2002: US06443926 (132 worldwide citation)

An angioplasty device and particle trap for use in medical, veterinary, non-medical or industrial applications where removal of an obstruction from a small diameter vessel or vessel-like structure could produce particles, which, if allowed to remain in the vessel, could cause undesirable complicatio ...


3
Harold D Kletschka: Fluid pump with magnetically levitated impeller. Dorsey & Whitney, November 28, 1995: US05470208 (118 worldwide citation)

A fluid pump with a rotary impeller is disclosed which comprises an electromagnetically-driven, bearing-free, seal-free rotary impeller levitated by localized opposed, magnetic forces and by fluid forces, or by localized opposed magnetic forces only. Levitation by localized opposed magnetic forces a ...


4
Harold D Kletschka: Fluid pump with levitated impeller. Dorsey & Whitney, October 8, 1991: US05055005 (115 worldwide citation)

A fluid pump with rotary impeller is disclosed which comprises an electromagnetically driven rotary impeller levitated by localized opposed fluid forces. Levitation by localized opposed fluid forces of an impeller driven by electromagnetic forces eliminates the need for bearings and seals in the dri ...


5
Harold D Kletschka, Edson D Rafferty: Fluid conveying surgical instrument. Bio Medicus, Merchant Gould Smith Edell Welter & Schmidt, September 20, 1977: US04049002 (106 worldwide citation)

A surgical instrument of scissors configuration having one or more suction and spraying openings disposed at the functional end thereof, the openings communicating with a fluid conduit which is carried by and movable with one or both of the instrument handles or manipulating means. Movable conduit e ...


6
Harold D Kletschka: Fluid pump with magnetically levitated impeller. Dorsey & Whitney, March 23, 1993: US05195877 (95 worldwide citation)

A fluid pump with rotary impeller is disclosed which comprises an electromagnetically-driven, bearing-free, seal-free rotary impeller levitated by localized opposed, repulsive, permanent magnetic forces and by fluid forces, or by localized opposed repulsive magnetic forces only. Levitation by locali ...


7
Harold D Kletschka: Embolic protection device having an expandable trap. Dorsey & Whitney, August 19, 2003: US06607506 (93 worldwide citation)

An embolic protection device for use in medical, veterinary, non-medical or industrial applications where removal of an obstruction from a small diameter vessel or vessel-like structure could produce particles, which, if allowed to remain in the vessel, could cause undesirable complications and resu ...


8
Edson Howard Rafferty, Harold D Kletschka: Pumping apparatus and process characterized by gentle operation. Bio Medicus, Merchant Gould Smith Edell Welter & Schmidt, May 18, 1976: US03957389 (87 worldwide citation)

Pumps wherein smooth surfaced rotators cause propulsion of a delicate fluid without significant damage to the fluid. The pumps may be used as heart pumps, blood pumps, and pumps for all types of fluids in connection with the maintenance of life or biological functions in a human or animal subject in ...


9
Harold D Kletschka: Embolic protection device having expandable trap. Dorsey & Whitney, November 26, 2002: US06485456 (86 worldwide citation)

An embolic protection device for use in medical, veterinary, non-medical or industrial applications where removal of an obstruction from a small diameter vessel or vessel-like structure could produce particles, which, if allowed to remain in the vessel, could cause undesirable complications and resu ...


10
Harold D Kletschka, Edson D Rafferty: Fluid conveying surgical instrument. Bio Medicus, Merchant Gould Smith Edell Welter & Schmidt, September 14, 1976: US03980086 (68 worldwide citation)

A surgical instrument of scissors configuration having one or more suction and spraying openings disposed at the functional end thereof, the openings communicating with a fluid conduit which is carried by and movable with one or both of the instrument handles or manipulating means. Movable conduit e ...