Alford J Mclevish

8545754, Oct 1, 2013

Apr 23, 2009

12/428674

Walt L. Carpenter - Minneapolis MN, US
Robert W. Olsen - Plymouth MN, US
Michael J. Hobday - Lino Lakes MN, US
Alford L. McLevish - Maple Grove MN, US
Christopher J. Plott - St. Paul MN, US
Roderick E. Briscoe - Rogers MN, US
Patrick J. Cloutier - Andover MN, US
Anil Thapa - Blaine MN, US
Ming Li - Roseville MN, US
Kevin McIntosh - Brooklyn Park MN, US
Ken Merte - Southlake TX, US

Medtronic, Inc. - Minneapolis MN

A61M 1/00
A61M 1/16

422 46, 422 44, 422 45, 422 48, 604 401, 604 609, 604 613, 604 614

Disclosed is an apparatus for oxygenating and controlling the temperature of blood in an extracorporeal circuit. The apparatus has an inlet and an outlet that is located radially outward from the inlet in order to define a flowpath through the apparatus. The apparatus comprises: a core that is substantially centrally located in the apparatus and to which blood from a patient can be supplied through the inlet; a heat exchanger comprising a plurality of heat transfer elements that are arranged around the core and between which blood from the core can move radially outward; and an oxygenator comprising a plurality of gas exchange elements that are arranged around the heat exchanger and between which blood from the heat exchanger can move radially outward before exiting the apparatus through the outlet.

20090105630, Apr 23, 2009

Nov 30, 2007

11/948290

Trevor C. Huang - Maple Grove MN, US
Alford L. McLevish - Maple Grove MN, US
Joseph L. Kalscheuer - Minneapolis MN, US
Roderick E. Briscoe - Rogers MN, US

A61M 1/34

604 609

An arterial line blood filter for use in extracorporeal blood circuits during heart bypass surgery has, among other components, a housing with a cap portion, a base portion, and a generally cylindrical wall portion. The blood filter has a filter element disposed within the housing. An inlet is positioned at an upward angle with respect to the housing and includes an opening in the generally cylindrical wall portion in fluid communication with the inlet chamber. In some embodiments the position of the inlet limits the pressure drop and prime volume of the filter. According to one embodiment, the cap portion has an upwardly sloping inner surface and there is a vent in the cap portion. The inner surface of the cap portion can have a projection proximate the vent configured to limit immobilization of gaseous microemboli within the inlet chamber.

20100269342, Oct 28, 2010

Apr 23, 2009

12/428706

Walt L. Carpenter - Minneapolis MN, US
Robert W. Olsen - Plymouth MN, US
Michael J. Hobday - Lino Lakes MN, US
Alford L. McLevish - Maple Grove MN, US
Christopher J. Plott - St. Paul MN, US
Roderick E. Briscoe - Rogers MN, US
Patrick J. Cloutier - Andover MN, US
Anil Thapa - Blaine MN, US
Ming Li - Roseville MN, US

B21D 53/02

2989003

Described is a method of making an apparatus for oxygenating and controlling the temperature of blood in an extracorporeal circuit, the steps comprising: providing a core through which blood can be supplied to the apparatus from a patient; providing a heat exchanger about the core such that blood from the core can move radially outward through the heat exchanger; providing an oxygenator about the heat exchanger such that blood from the heat exchanger can move radially outward through the oxygenator; and placing the core, heat exchanger and oxygenator in a housing that includes an inlet in communication with the core and an outlet that is located radially outward from the inlet in order to define a flowpath for blood through the apparatus.

20100272606, Oct 28, 2010

Apr 23, 2009

12/428697

Walt L. Carpenter - Minneapolis MN, US
Robert W. Olsen - Plymouth MN, US
Michael J. Hobday - Lino Lakes MN, US
Alford L. McLevish - Maple Grove MN, US
Christopher J. Plott - St. Paul MN, US
Roderick E. Briscoe - Rogers MN, US
Partick J. Cloutier - Andover MN, US
Anil Thapa - Blaine MN, US
Ming Li - Roseville MN, US

A61M 1/36

422 46

Described is an apparatus for oxygenating and controlling the temperature of blood in an extracorporeal circuit comprising: an inlet mandrel that is configured such that the blood moves radially outward from the inlet mandrel through the openings in a radial direction; a heat exchanger arranged around the inlet mandrel, wherein blood can move radially outward with the transfer of heat to or from the blood; an oxygenator arranged around the heat exchanger, wherein blood can move from the heat exchanger radially outward with the transfer of oxygen into the blood; and a housing that houses the inlet mandrel, the heat exchanger and the oxygenator, and that comprises a blood inlet in communication with the inlet mandrel in order to allow blood to enter the apparatus from the patient, and a blood outlet in communication with the oxygenator in order for blood to exit the apparatus, wherein the blood outlet is located in the housing radially outward from the inlet.

20100272607, Oct 28, 2010

Apr 23, 2009

12/428716

Walt L. Carpenter - Minneapolis MN, US
Robert W. Olsen - Plymouth MN, US
Michael J. Hobday - Lino Lakes MN, US
Alford L. McLevish - Maple Grove MN, US
Christopher J. Plott - St. Paul MN, US
Roderick E. Briscoe - Rogers MN, US
Patrick J. Cloutier - Andover MN, US
Anil Thapa - Blaine MN, US
Ming Li - Roseville MN, US
Kevin McIntosh - Brooklyn Park MN, US
Ken Merte - South Lake TX, US

A61M 1/36

422 46

Described is an apparatus for oxygenating and controlling the temperature of blood in an extracorporeal circuit, the apparatus having an inlet and an outlet that is located radially outward from the inlet in order to define a flowpath through the apparatus, the apparatus comprising: a core in communication with the inlet such that blood from a patient can be supplied to the core, the core comprising a first element and a second element that interfit to define openings, wherein the elements and the openings together enhance flow of blood from the patient radially outward from the core; a heat exchanger that is arranged about the core and through which blood from the core can move radially outward; and an oxygenator that is arranged about the heat exchanger and through which blood from the heat exchanger can move radially outward before exiting the apparatus through the outlet.

20130209314, Aug 15, 2013

Feb 15, 2012

13/397446

Stephen Roller - Minneapolis MN, US
Chistopher Plott - St. Paul MN, US
Alford McLevish - Maple Grove MN, US
Gregory Hake - Otsego MN, US
Brian Steffens - Maple Grove MN, US

Medtronic, Inc. - Minneapolis MN

A61M 1/32

422 46, 422 45

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.

20150174311, Jun 25, 2015

Dec 19, 2013

14/134641

- Minneapolis MN, US
Alford McLevish - Brooklyn Park MN, US

Medtronic, Inc. - Minneapolis MN

A61M 1/32
B21D 53/02

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.