Patents by Inventor Kevin A. Hufford

Kevin A. Hufford 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: 11324918
    Abstract: A multi-lumen catheter includes a primary lumen having a proximal end and a tip and a secondary lumen parallel to the primary lumen. The primary lumen and the secondary lumen share a wall. A port is defined in the wall proximate the tip of the primary lumen and provides fluidic communication between the primary lumen and the secondary lumen.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: May 10, 2022
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Joseph L. Charest, James Hsiao, Christopher DiBiasio, Kevin A. Hufford
  • Patent number: 10661050
    Abstract: A catheter includes an elongated tube having a distal end and a proximal end. The elongated tube includes porous material having an interior and an exterior face. The interior face defines a lumen along a central axis of the elongated tube. The porous material is configured to flow a fluid between the interior face and the exterior face and to seep the fluid out of the porous material through the exterior face and interior face. A lining covers at least a portion of the exterior face and substantially limits perfusion through the exterior face at the portion of the exterior face covered by the lining. The catheter is impregnated with a material that prevents buildup of material on one of an inner face or an outer face of the catheter or the lining is coated with one or more of an anticoagulant, antibiotic, or antithrombotic.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: May 26, 2020
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Joseph L. Charest, James Hsiao, Christopher DiBiasio, Kevin A. Hufford
  • Publication number: 20180229001
    Abstract: A multi-lumen catheter includes a primary lumen having a proximal end and a tip and a secondary lumen parallel to the primary lumen. The primary lumen and the secondary lumen share a wall. A port is defined in the wall proximate the tip of the primary lumen and provides fluidic communication between the primary lumen and the secondary lumen.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Inventors: Joseph L. Charest, James Hsiao, Christopher DiBiasio, Kevin A. Hufford
  • Publication number: 20180229002
    Abstract: A catheter includes an elongated tube having a distal end and a proximal end. The elongated tube includes porous material having an interior and an exterior face. The interior face defines a lumen along a central axis of the elongated tube. The porous material is configured to flow a fluid between the interior face and the exterior face and to seep the fluid out of the porous material through the exterior face and interior face. A lining covers at least a portion of the exterior face and substantially limits perfusion through the exterior face at the portion of the exterior face covered by the lining. The catheter is impregnated with a material that prevents buildup of material on one of an inner face or an outer face of the catheter or the lining is coated with one or more of an anticoagulant, antibiotic, or antithrombotic.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Inventors: Joseph L. Charest, James Hsiao, Christopher DiBiasio, Kevin A. Hufford
  • Patent number: 9962519
    Abstract: The device and methods described herein relate to a seeping flow catheter. The seeping flow catheter includes a porous material. The inner face of the porous material defines the lumen of the catheter. The porous material is configured such that fluid can flow along the length of the catheter, between the inner face and outer face of the porous material. As the fluid flows through the porous material, the fluid can seep into the lumen of the catheter through the inner face or out of the catheter through the outer face of the porous material. Portions of the inner or outer face can include a lining that substantial reduces the perfusion of the fluid through the lined areas.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: May 8, 2018
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Joseph L. Charest, James Hsiao, Christopher DiBiasio, Kevin A. Hufford
  • Publication number: 20170100564
    Abstract: The device and methods described herein relate to a seeping flow catheter. The seeping flow catheter includes a porous material. The inner face of the porous material defines the lumen of the catheter. The porous material is configured such that fluid can flow along the length of the catheter, between the inner face and outer face of the porous material. As the fluid flows through the porous material, the fluid can seep into the lumen of the catheter through the inner face or out of the catheter through the outer face of the porous material. Portions of the inner or outer face can include a lining that substantial reduces the perfusion of the fluid through the lined areas.
    Type: Application
    Filed: January 13, 2015
    Publication date: April 13, 2017
    Inventors: Joseph L. Charest, James Hsiao, Christopher DiBiasio, Kevin A. Hufford
  • Publication number: 20140206940
    Abstract: The method and system disclosed herein uses a pulsatile, dilatory bubble at the tip of a catheter to facilitate tissue separation and ease catheter insertion for, among other applications, delivery of therapeutics to the posterior of the eye while reducing procedure-related trauma. In some implementations, the method is extended to other dilatory and catheter-insertion applications elsewhere in the body. In brief, the disclosure discusses iteratively injecting liquid through a catheter to form a bubble near the distal tip of the catheter. The liquid is withdrawn to create a void, and the catheter is advanced into the void. The process is repeated until the distal tip of the catheter reaches the target location.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 24, 2014
    Applicant: The Charles Stark Draper Laboratory, Inc.
    Inventor: Kevin A. Hufford
  • Publication number: 20140073992
    Abstract: Apparatuses and methods are disclosed herein for extracting bodily fluids. The apparatus consists of a housing, a releasable lancet stored in the housing, an inlet flow channel formed in the housing, a mechanically powered vacuum generator, and a storage area formed in the housing. The releasable lancet is released to pierce the skin of the subject to allow fluid to be extracted from the subject. The vacuum generator generates a partial vacuum within the inlet flow channel. After the lancet has pierced the skin of the subject, the partial vacuum draws fluid from the subject and into the inlet flow channel. The storage area is in fluid connection with the inlet flow channel, and receives the fluid drawn from the subject from the inlet flow channel.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Inventors: Kevin A. Hufford, Hoi-Cheong S. Sun