Patents by Inventor Peter A. Watterson

Peter A. Watterson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120065457
    Abstract: A fluid pressure generating means (10) for a heart assist device having blood pumping means. The pressure generating means (10) includes a housing (11), defining an interior volume (18), and having a substantially rigid first housing portion (12), a substantially rigid second housing portion (14), a flexible third housing portion (16) extending between the first (12) and second (14) housing portions and an inlet/outlet port (15) adapted for fluid communication with the blood pumping means. The pressure generating means (10) also includes a fluid filling the housing and a motor (20) disposed within the housing (11) and connected between the first (12) and second (14) housing portions. Actuation of the motor (20) moves the first (12) and second (14) housing portions relative to one another to generate fluid pressure changes at the inlet/outlet port (15). A related heart assist device and method for the treatment of congestive heart failure, myocardial ischemia and like conditions are also disclosed.
    Type: Application
    Filed: August 10, 2011
    Publication date: March 15, 2012
    Applicant: Sunshine Heart Company PTY LTD
    Inventors: William Suttle Peters, Hans H. Henrichsen, Peter A. Watterson
  • Patent number: 7476077
    Abstract: A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular form the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid 105 urged by electromagnetic means external to the pump cavity 106, 203. Hydrodynamic suspension is assisted by the impeller 100, 204 having deformities therein such as blades 8 with surfaces tapered from the leading edges 102, 223 to the trailing edges 103, 224 of bottom and top edges 221, 222 thereof.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: January 13, 2009
    Assignees: Ventrassist Pty Ltd., University of Technology at Sydney
    Inventors: John C. Woodard, Peter A. Watterson, Geoffrey D. Tansley
  • Patent number: 6966748
    Abstract: A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular form the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid 105 urged by electromagnetic means external to the pump cavity 106, 203. Hydrodynamic suspension is assisted by the impeller 100, 204 having deformities therein such as blades 8 with surfaces tapered from the leading edges 102, 223 to the trailing edges 103, 224 of bottom and top edges 221, 222 thereof.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: November 22, 2005
    Assignee: Ventrassist PTY Ltd. and University of Technology at Sydney
    Inventors: John C. Woodard, Peter A. Watterson, Geoffrey D. Tansley
  • Publication number: 20040028525
    Abstract: A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular form the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid 105 urged by electromagnetic means external to the pump cavity 106, 203.
    Type: Application
    Filed: August 5, 2003
    Publication date: February 12, 2004
    Inventors: John C. Woodard, Peter A. Watterson, Geoffrey D. Tansley
  • Patent number: 6638011
    Abstract: A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular form the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid 105 urged by electromagnetic means external to the pump cavity 106, 203. Hydrodynamic suspension is assisted by the impeller 100, 204 having deformities therein such as blades 8 with surfaces tapered from the leading edges 102, 223 to the trailing edges 103, 224 of bottom and top edges 221, 222 thereof.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: October 28, 2003
    Inventors: John C. Woodard, Peter A. Watterson, Geoffrey D. Tansley
  • Publication number: 20020018713
    Abstract: A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular form the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid 105 urged by electromagnetic means external to the pump cavity 106, 203.
    Type: Application
    Filed: June 26, 2001
    Publication date: February 14, 2002
    Inventors: John C. Woodard, Peter A. Watterson, Geoffrey D. Tansley
  • Patent number: 6250880
    Abstract: A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular form the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid 105 urged by electromagnetic means external to the pump cavity 106, 203. Hydrodynamic suspension is assisted by the impeller 100, 204 having deformities therein such as blades 8 with surfaces tapered from the leading edges 102, 223 to the trailing edges 103, 224 of bottom and top edges 221, 222 thereof.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: June 26, 2001
    Assignee: Ventrassist Pty. Ltd
    Inventors: John C. Woodard, Peter A. Watterson, Geoffrey D. Tansley
  • Publication number: 20010002234
    Abstract: A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular form the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid 105 urged by electromagnetic means external to the pump cavity 106, 203.
    Type: Application
    Filed: April 23, 1999
    Publication date: May 31, 2001
    Applicant: KNOBBE, MARTENS, OLSON & BEAR,LLP
    Inventors: JOHN C. WOODARD, PETER A. WATTERSON, GEOFFREY D. TANSLEY