Patents by Inventor Kartik Radhakrishnan

Kartik Radhakrishnan 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).

  • Roller pump with dynamic occlusion adjustment
    Patent number: 10012226
    Abstract: A roller pump including a drive shaft, a motor, a roller head assembly, a stator housing, and an occlusion adjustment assembly. The drive shaft is coupled to the motor. The roller head assembly includes a hub, a slide body, and a roller. The hub is mounted to the drive shaft, and maintains the slide body and the roller. The stator housing forms a raceway receiving surface. The occlusion adjustment assembly includes an actuator knob, an actuating structure, and a ground shaft. The actuating structure interfaces with the slide body, and thus the roller, with rotation of the knob. The ground shaft supports the knob and is rotationally isolated from the drive shaft. A user and optionally a control system can adjust occlusion while the pump continuously delivers a fluid medium.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 3, 2018
    Assignee: Medtronic, Inc.
    Inventors: Craig Petersen, Kartik Radhakrishnan, Walter Carpenter
  • Roller Pump with Dynamic Occlusion Adjustment
    Publication number: 20160327034
    Abstract: A roller pump including a drive shaft, a motor, a roller head assembly, a stator housing, and an occlusion adjustment assembly. The drive shaft is coupled to the motor. The roller head assembly includes a hub, a slide body, and a roller. The hub is mounted to the drive shaft, and maintains the slide body and the roller. The stator housing forms a raceway receiving surface. The occlusion adjustment assembly includes an actuator knob, an actuating structure, and a ground shaft. The actuating structure interfaces with the slide body, and thus the roller, with rotation of the knob. The ground shaft supports the knob and is rotationally isolated from the drive shaft. A user and optionally a control system can adjust occlusion while the pump continuously delivers a fluid medium.
    Type: Application
    Filed: July 20, 2016
    Publication date: November 10, 2016
    Inventors: Craig Petersen, Kartik Radhakrishnan, Walter Carpenter
  • Roller pump with dynamic occlusion adjustment
    Patent number: 9422932
    Abstract: A roller pump including a drive shaft, a motor, a roller head assembly, a stator housing, and an occlusion adjustment assembly. The drive shaft is coupled to the motor. The roller head assembly includes a hub, a slide body, and a roller. The hub is mounted to the drive shaft, and maintains the slide body and the roller. The stator housing forms a raceway receiving surface. The occlusion adjustment assembly includes an actuator knob, an actuating structure, and a ground shaft. The actuating structure interfaces with the slide body, and thus the roller, with rotation of the knob. The ground shaft supports the knob and is rotationally isolated from the drive shaft. A user and optionally a control system can adjust occlusion while the pump continuously delivers a fluid medium.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: August 23, 2016
    Assignee: Medtronic, Inc.
    Inventors: Craig Petersen, Kartik Radhakrishnan, Walter Carpenter
  • Roller Pump with Dynamic Occlusion Adjustment
    Publication number: 20140127063
    Abstract: A roller pump including a drive shaft, a motor, a roller head assembly, a stator housing, and an occlusion adjustment assembly. The drive shaft is coupled to the motor. The roller head assembly includes a hub, a slide body, and a roller. The hub is mounted to the drive shaft, and maintains the slide body and the roller. The stator housing forms a raceway receiving surface. The occlusion adjustment assembly includes an actuator knob, an actuating structure, and a ground shaft. The actuating structure interfaces with the slide body, and thus the roller, with rotation of the knob. The ground shaft supports the knob and is rotationally isolated from the drive shaft. A user and optionally a control system can adjust occlusion while the pump continuously delivers a fluid medium.
    Type: Application
    Filed: November 5, 2012
    Publication date: May 8, 2014
    Applicant: MEDTRONIC, INC.
    Inventors: Craig Petersen, Kartik Radhakrishnan, Walter Carpenter