Patents by Inventor Alford McLevish

Alford McLevish 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: 9408960
    Abstract: Methods of making a combination heat exchanger and oxygenator. A heat transfer tubing is wound about a core and a potting compound is applied to a portion of the wound tubing. The potting compound solidifies to form a potting structure defining an internal face substantially parallel with a longitudinal axis of the core. The assembly is cut along a line passing through the potting structure to define a core assembly having a cut face substantially parallel with the axis. The cut tubing forms a plurality of capillary tubes, each terminating at opposing, first and second ends, and each extending about the core along an arc angle of less than 360 degrees. An oxygenator bundle is formed as part of the core assembly and includes a plurality of gas exchange fibers. The core assembly is disposed within a housing having a blood inlet and a blood outlet.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: August 9, 2016
    Assignee: Medtronic, Inc.
    Inventor: Alford McLevish
  • Publication number: 20150174311
    Abstract: Methods of making a combination heat exchanger and oxygenator. A heat transfer tubing is wound about a core and a potting compound is applied to a portion of the wound tubing. The potting compound solidifies to form a potting structure defining an internal face substantially parallel with a longitudinal axis of the core. The assembly is cut along a line passing through the potting structure to define a core assembly having a cut face substantially parallel with the axis. The cut tubing forms a plurality of capillary tubes, each terminating at opposing, first and second ends, and each extending about the core along an arc angle of less than 360 degrees. An oxygenator bundle is formed as part of the core assembly and includes a plurality of gas exchange fibers. The core assembly is disposed within a housing having a blood inlet and a blood outlet.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 25, 2015
    Applicant: Medtronic, Inc.
    Inventor: Alford McLevish
  • Patent number: 8795591
    Abstract: An apparatus for oxygenating blood including a housing and an oxygenator bundle. The housing defines a primary chamber, a blood inlet port open to the primary chamber, and a blood outlet region. The outlet region includes a blood outlet port, an outlet chamber open to the outlet port, and a partition. The partition establishes spaced apart, first and second passageways from the primary chamber to the outlet chamber. The oxygenator bundle is disposed within the primary chamber. A blood flow path is formed from the blood inlet port, through the oxygenator bundle and to the blood outlet port, and includes first and second outlet flow paths within the outlet chamber via the first and second passageways, respectively. The first and second outlet blood flow paths merge at the blood outlet port. A dual port blood outlet is created, increasing mixing of blood immediately upstream of the outlet port.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: August 5, 2014
    Assignee: Medtronic, Inc.
    Inventors: Stephen Roller, Christopher Plott, Alford McLevish, Gregory Hake, Brian Steffens
  • Publication number: 20140050617
    Abstract: An apparatus for oxygenating blood including a housing and an oxygenator bundle. The housing defines a primary chamber, a blood inlet port open to the primary chamber, and a blood outlet region. The outlet region includes a blood outlet port, an outlet chamber open to the outlet port, and a partition. The partition establishes spaced apart, first and second passageways from the primary chamber to the outlet chamber. The oxygenator bundle is disposed within the primary chamber. A blood flow path is formed from the blood inlet port, through the oxygenator bundle and to the blood outlet port, and includes first and second outlet flow paths within the outlet chamber via the first and second passageways, respectively. The first and second outlet blood flow paths merge at the blood outlet port. A dual port blood outlet is created, increasing mixing of blood immediately upstream of the outlet port.
    Type: Application
    Filed: February 15, 2012
    Publication date: February 20, 2014
    Applicant: Medtronic, Inc.
    Inventors: Stephen Roller, Chistopher Plott, Alford McLevish, Gregory Hake, Brian Steffens
  • Publication number: 20130209314
    Abstract: An apparatus for oxygenating blood including a housing and an oxygenator bundle. The housing defines a primary chamber, a blood inlet port open to the primary chamber, and a blood outlet region. The outlet region includes a blood outlet port, an outlet chamber open to the outlet port, and a partition. The partition establishes spaced apart, first and second passageways from the primary chamber to the outlet chamber. The oxygenator bundle is disposed within the primary chamber. A blood flow path is formed from the blood inlet port, through the oxygenator bundle and to the blood outlet port, and includes first and second outlet flow paths within the outlet chamber via the first and second passageways, respectively. The first and second outlet blood flow paths merge at the blood outlet port. A dual port blood outlet is created, increasing mixing of blood immediately upstream of the outlet port.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 15, 2013
    Applicant: Medtronic, Inc.
    Inventors: Stephen Roller, Chistopher Plott, Alford McLevish, Gregory Hake, Brian Steffens