Patents by Inventor Albert H. Dunfee

Albert H. Dunfee 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).

  • Patent number: 10307601
    Abstract: A fixation member configured to anchor an implantable medical device within a patient is attached to an implantable medical device by introducing at least a portion of the fixation member in a tube mechanically connected to the medical device, and plastically deforming the tube in order to pinch the fixation member within a hollow space of the tube.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: June 4, 2019
    Assignee: Medtronic, Inc.
    Inventors: Kamal Deep Mothilal, George Patras, Albert H. Dunfee
  • Publication number: 20160082270
    Abstract: A fixation member configured to anchor an implantable medical device within a patient is attached to an implantable medical device by introducing at least a portion of the fixation member in a tube mechanically connected to the medical device, and plastically deforming the tube in order to pinch the fixation member within a hollow space of the tube.
    Type: Application
    Filed: November 24, 2015
    Publication date: March 24, 2016
    Inventors: Kamal Deep MOTHILAL, George PATRAS, Albert H. DUNFEE
  • Patent number: 9204842
    Abstract: A fixation member configured to anchor an implantable medical device within a patient is attached to an implantable medical device by introducing at least a portion of the fixation member in a tube mechanically connected to the medical device, and plastically deforming the tube in order to pinch the fixation member within a hollow space of the tube.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: December 8, 2015
    Assignee: Medtronic, Inc.
    Inventors: Kamal Deep Mothilal, George Patras, Albert H. Dunfee
  • Publication number: 20120109002
    Abstract: A fixation member configured to anchor an implantable medical device within a patient is attached to an implantable medical device by introducing at least a portion of the fixation member in a tube mechanically connected to the medical device, and plastically deforming the tube in order to pinch the fixation member within a hollow space of the tube.
    Type: Application
    Filed: March 17, 2011
    Publication date: May 3, 2012
    Applicant: MEDTRONIC, INC.
    Inventors: Kamal Deep Mothilal, George Patras, Albert H. Dunfee
  • Patent number: 7716801
    Abstract: A distal protection device captures debris during vascular procedures. In order to reduce the profile of the device, the thickness of the distal protection element is reduced in one or both of the end regions, either by reducing the thickness of filaments which form the distal protection element, or by removing portions of those filaments altogether. Various methods of reducing the thickness of the end regions and different profiles that can be created by the reduction are disclosed.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: May 18, 2010
    Assignee: Medtronic Vascular, Inc.
    Inventors: Nareak Douk, Nasser Rafiee, Albert H Dunfee
  • Patent number: 7527636
    Abstract: An intraluminal guidewire system comprises a first tubular member having a proximal end and a distal end and has a fluid containing lumen therethrough. A medical device is coupled to the first tubular member proximate the distal end. A slave actuating member is coupled to the medical device and is slidably mounted proximate the distal end for longitudinal movement with respect to the first tubular member. A master actuating member is configured for longitudinal movement within the first tubular member proximate the proximal end. The master actuating member is hydraulically coupled to the slave actuating member.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: May 5, 2009
    Assignee: Medtronic Vascular, Inc
    Inventors: Albert H. Dunfee, David D. Barone
  • Patent number: 7371248
    Abstract: A steerable guidewire apparatus for use during percutaneous catheter interventions such as angioplasty or stent deployment. A protection element comprising a filter or an occluder is mounted near the distal end of the steerable guidewire, which guides a therapeutic catheter. The guidewire comprises a hollow shaft movably disposed about a core wire. The shaft and core wire control separation of the ends of the protection element, causing transformation of the protection element from a deployed configuration to a collapsed configuration. Farther separation of the ends of the protection element, after it has been collapsed, causes deflection in a distal region of the apparatus.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: May 13, 2008
    Assignee: Medtronic Vascular, Inc.
    Inventors: Steven Dapolito, Albert H. Dunfee
  • Publication number: 20040153094
    Abstract: An intraluminal catheter system comprises a first tubular member having a proximal end and a distal end and has a fluid containing lumen therethrough. A medical device is coupled to the first tubular member proximate the distal end. A slave actuating member is coupled to the medical device and is slidably mounted proximate the distal end for longitudinal movement with respect to the first tubular member. A master actuating member is configured for longitudinal movement within the first tubular member proximate the proximal end. The master actuating member is hydraulically coupled to the slave actuating member.
    Type: Application
    Filed: November 14, 2003
    Publication date: August 5, 2004
    Inventors: Albert H. Dunfee, David D. Barone
  • Patent number: 6716231
    Abstract: The present invention is a distal protection device for use during a vascular treatment, such as angioplasty or atherectomy. A filter assembly located on the distal end of a delivery member is deployed distally of the vascular region to be treated to capture emboli released during and immediately after the procedure. The filter is then retracted to retain any captured emboli and then removed from the patient.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: April 6, 2004
    Inventors: Nasser Rafiee, Jerry R. Brightbill, David S. Brin, Timothy P. Collins, Steven R. Dapolito, Barbara S. DeVaux, Nareak Douk, Albert H. Dunfee, Heng Mao, Michael S. Noone, Dennis L. Brooks, Robert D. Lashinski
  • Patent number: 6591472
    Abstract: Methods of fabricating medical vascular catheters adapted to be inserted into a blood vessel from an incision through the skin of a patient for introducing other devices or fluids for diagnostic or therapeutic purposes and particularly methods for fabricating such catheters with catheter bodies having catheter sections of differing flexibility are disclosed.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: July 15, 2003
    Assignee: Medtronic, Inc.
    Inventors: Michael S. Noone, Albert H. Dunfee, Matthew S. Poole
  • Patent number: 6210396
    Abstract: The present invention comprises a tubular catheter shaft defining at least one catheter shaft lumen and a radiopaque band made of a polymeric material loaded with a radiopaque material of greater than 40% by weight, suitable for visualization under fluoroscopy in catheters in the range of 3 French to 5 French. The distal soft tip is formed of a relatively flexible polymeric material, loaded with radiopaque material which is less radiopaque than the radiopaque band. The radiopaque band's proximal end adjoins the distal end of the catheter shaft. The radiopaque band's distal end adjoins the proximal end of the distal tip to form an attachment junction. A tubular sleeve fits coaxially over the radiopaque band, the distal end of the catheter shaft and the proximal end of the distal soft tip.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: April 3, 2001
    Assignee: Medtronic, Inc.
    Inventors: Stuart R. MacDonald, Zelda M. Anastos, Albert H. Dunfee, Michael S. Noone