Michael B Mcmahon

US Patent:

57380864, Apr 14, 1998

Filed:

May 11, 1995

Appl. No.:

8/439390

Inventors:

Michael David McMahon - Anaheim Hills CA
Andre Maurice Rustad - Etiwanda CA

Assignee:

Baxter International Inc. - Deerfield IL

International Classification:

A61M 1100
A61M 1500
A62B 902
F16K 4300

US Classification:

12820021

Abstract:

A method of installing an anti-siphon flow restricter into a gas flow lumen of a nebulizer includes providing an anti-siphon flow restricter having a side wall conforming to a cross section of the gas flow lumen, first and second ends at opposite ends of the side wall and an elastomeric diaphragm closing the first end of the side wall. The anti-siphon flow restricter is axially inserted into the gas flow lumen with the diaphragm leading. The diaphragm is slit and allowed to self-bias closed.

US Patent:

55031390, Apr 2, 1996

Filed:

Feb 2, 1994

Appl. No.:

8/190629

Inventors:

Michael D. McMahon - Anaheim Hills CA
Andre M. Rustad - Etiwanda CA

International Classification:

A61M 1106
B05B 126

US Classification:

12820018

Abstract:

A nebulizer (10) has a nebulizer top (12) defining an aerosol outlet (66) and a reservoir bottom (14) defining a liquid reservoir (21) and a threaded connection (38,68) between the reservoir bottom (14) and the nebulizer top (12). A nebulizing structure (24,46) within the nebulizer provides an aerosol to the aerosol outlet (66). A continuous flow adaptor (16) for the nebulizer has a side wall (90) with first and second open ends (94,100) defining a spacer interior. An orifice (116) in the side wall (90) of the adaptor (16) allows for fluid communication with the adaptor (16) interior from outside of the adaptor (16). A luer connector (118) is provided on the side wall (90) of the adaptor (16) for connecting the orifice (116) in fluid tight communication with a fluid supply. The adaptor (16) includes threads (92,98) proximate the first and second open ends (24,100) for cooperatively engaging the threaded portions (38,68) of the reservoir top (12) and reservoir bottom (14).

US Patent:

51828324, Feb 2, 1993

Filed:

Apr 27, 1992

Appl. No.:

7/874408

Inventors:

Michael R. McMahon - Phelan CA

International Classification:

A47L 514

US Classification:

15304

Abstract:

An inlet tube has a connector at one end for coupling to an air supply hose, and a rotary head is rotatably mounted on the other end of the inlet tube. The rotary head has an internal air distribution chamber connected to the inlet tube and small outlet openings in its outer peripheral wall for spraying air from the chamber towards an air filter unit. Rotor or spin outlet passageways in the peripheral wall are arranged at an angle to cause the head to spin in a turbine-like fashion when air flow is directed from the chamber and out through the passageways. The rotating head sprays air outwardly across the surface of an air filter unit to dislodge dirt from filter paper in a filter unit.

US Patent:

55797571, Dec 3, 1996

Filed:

Feb 2, 1994

Appl. No.:

8/190626

Inventors:

Michael D. McMahon - Anaheim Hills CA
Andre M. Rustad - Etiwanda CA

Assignee:

Baxter International, Inc. - Deerfield IL

International Classification:

A61M 1100
A61M 1500
A62B 902
F16K 4300

US Classification:

12820021

Abstract:

A nebulizer (10) has a housing (12,14) including an aerosol outlet (22) and a bottom wall (52) with a side wall (50) connected thereto defining a reservoir (54) for a liquid (106). A gas jet (58) extends along a longitudinal axis (60) of the housing (12,14) and through the bottom wall (52) of the housing (12,14), the gas jet (58) defining a gas flow lumen (66) having a gas orifice (64) at its distal end. A liquid nozzle (16) having a liquid orifice (102) at a distal end corresponding to the distal end of the gas jet (58) surrounds the gas jet (58). The liquid orifice (102) is spaced from the gas orifice (64) for nebulization of liquid (106) fed to the liquid orifice (102). A diaphragm (126) made of an elastomer has a slit (130) which is biased closed. Cooperating shoulders between the diaphragm (126) and the gas flow lumen (66) maintain the diaphragm (126) in the gas flow lumen (66) with the slit (130) transverse the length of the lumen.

US Patent:

20180304033, Oct 25, 2018

Filed:

Jun 20, 2018

Appl. No.:

16/013830

Inventors:

- Mettawa IL, US
Dennis WHITE - Yorba Linda CA, US
Michael MCMAHON - Yorba Linda CA, US

International Classification:

A61M 16/00
A61B 5/00
A61M 16/20
A61M 16/06
A61M 16/04
A61B 5/091
A61B 5/087
A61B 5/08
A61B 5/01

Abstract:

A resuscitator has a patient airway interface device, a bag, a fluid passage coupled between the bag and patient airway interface device, and a sensor module. The patient airway interface device may be a mask or an endotracheal tube. The sensor module can have a display, at least one sensor coupled to the flow passage and configured to provide a measurement of at least one parameter, and a processor coupled to the display and the at least one sensor. The processor is configured to receive the measurement from the sensor and provide information on the display based on the received measurement. The information may include a current breath rate, a pressure-vs-time curve, and guidance to the user to assist in achieving a target breath rate.

US Patent:

20160375210, Dec 29, 2016

Filed:

Aug 17, 2016

Appl. No.:

15/239747

Inventors:

- San Diego CA, US
Dennis WHITE - Yorba Linda CA, US
Michael MCMAHON - Yorba Linda CA, US

International Classification:

A61M 16/00
A61M 16/04
A61B 5/00
A61B 5/091
A61M 16/20
A61M 16/06
A61B 5/08

Abstract:

A resuscitator has a patient airway interface device, a bag, a flow passage coupled between the bag and patient airway interface device, and a sensor assembly. The patient airway interface device may be a mask or an endotracheal tube. The sensor assembly has a display, at least one sensor coupled to the flow passage and configured to provide a measurement of at least one parameter, and a processor coupled to the display and the at least one sensor. The processor is configured to receive the measurement from the sensor and provide information on the display based on the received measurement. The information may include a current breath rate, a pressure-vs-time curve, and guidance to the user to assist in achieving a target breath rate.

US Patent:

20160346115, Dec 1, 2016

Filed:

Aug 10, 2016

Appl. No.:

15/233839

Inventors:

- San Diego CA, US
Michael MCMAHON - Yorba Linda CA, US
Thomas DILLINGHAM - Aliso Viejo CA, US
James CHAN - San Marino CA, US
Todd SCHMALTZ - San Diego CA, US
Karthikeyan RAJENDRAN - Woodridge IL, US

International Classification:

A61F 7/02

Abstract:

A patient warming device with patient access for maintaining normothermia and/or treating hypothermia is provided. The device includes a first compliant layer and a second compliant layer sealed together around an outer border to contain a liquid between the two layers and to form a wrap that surrounds and conforms to a body portion of a patient. A plurality of flaps extends from opposite sides of a generally longitudinal central portion of the wrap, such that one or more flaps from the opposite sides fasten to each other to surround the body portion. The flaps are openable during functional use to provide access to an underlying patient body surface. A continuous fluid flow path extends between the first compliant layer and the second compliant layer between a fluid inlet and a fluid outlet to carry liquid and deliver heat through the wrap.

US Patent:

20160346161, Dec 1, 2016

Filed:

Aug 11, 2016

Appl. No.:

15/234963

Inventors:

- San Diego CA, US
Michael McMahon - Yorba Linda CA, US
Thomas Dillingham - Aliso Viejo CA, US
James Chan - San Marino CA, US
Todd Schmaltz - San Diego CA, US
Noah Meade - Grayslake IL, US

International Classification:

A61H 9/00

Abstract:

A compressive patient warming device is provided. The device includes an elastic inner layer that conforms snugly to a shape of an appendage of a patient so that the inner layer wraps around and substantially contacts most of an underlying surface area of the appendage. An outer layer is attached to and covers the inner layer to form a space that holds a heat transfer medium between the inner layer and the outer layer while the inner layer is wrapped around the appendage. The outer layer may be a rigid layer, and a predetermined compressive load may be applied to the outer layer to encourage blood flow in the appendage. A source of heat may be applied to the device to maintain normothermia and/or treat hypothermia.