Christian E Schulz

US Patent:

6388240, May 14, 2002

Filed:

Mar 2, 2001

Appl. No.:

09/798764

Inventors:

Christian E. Schulz - Rancho Santa Margarita CA
Eugene E. Mason - La Mirada CA
Ammar Al Ali - Tustin CA

Assignee:

Masimo Corporation - Irvine CA

International Classification:

H01J 4014

US Classification:

250206, 2502141, 25055945

Abstract:

An optical probe, which is particularly suited to for use in measurements on tissue material of a patient. In one embodiment, the probe comprises upper and lower housing elements incorporating a light energy source and corresponding detector. The tissue material of the patient is disposed between the upper and lower housing elements such that the light energy emitted by the source passes through the tissue material to the detector. A plurality of light shields are attached to one or both of the housing elements to reduce the amount of ambient and reflected light reaching the detector. Additionally, various portions of the upper and lower housing elements and shields utilize light absorbent coloration and/or coatings which further mitigate the effects of undesired ambient and reflected light, thereby reducing noise generated within the instrument and increasing its accuracy. In one embodiment, the light shields are made removable from the optical probe, thereby facilitating replacement. A circuit for monitoring the condition of the probe, and indicating when replacement of the probe is desirable, is also disclosed.

US Patent:

6541756, Apr 1, 2003

Filed:

Jan 25, 2001

Appl. No.:

09/770757

Inventors:

Christian E. Schulz - Rancho Santa Margarita CA
Ammar Al-Ali - Tustin CA
Eugene E. Mason - La Mirada CA
Mike A. Mills - Golden CO

Assignee:

Masimo Corporation - Irvine CA

International Classification:

H01J 4014

US Classification:

250221, 250239, 356 41

Abstract:

The invention is a noninvasive optical probe having an electrical connector for connecting the optical probe to a cable connector. According to one embodiment, the electrical connector includes a durable flexible tab suspended between the housing of the optical probe and a protective cover. The electrical connector also advantageously forms, according to various embodiments, a flexible, plugable, lockable, removable, and sealable electrical connection.

US Patent:

6580086, Jun 17, 2003

Filed:

Oct 19, 1999

Appl. No.:

09/420544

Inventors:

Christian E. Schulz - Rancho Santa Margarita CA
Eugene E. Mason - La Mirada CA
Ammar Al Ali - Tustin CA

Assignee:

Masimo Corporation - Irvine CA

International Classification:

G06K 1500

US Classification:

250557, 2504612, 128633

Abstract:

An optical probe, which is particularly suited to for use in measurements on tissue material of a patient. In one embodiment, the probe comprises upper and lower housing elements incorporating a light energy source and corresponding detector. The tissue material of the patient is disposed between the upper and lower housing elements such that the light energy emitted by the source passes through the tissue material to the detector. A plurality of light shields are attached to one or both of the housing elements to reduce the amount of ambient and reflected light reaching the detector. Additionally, various portions of the upper and lower housing elements and shields utilize light absorbent coloration and/or coatings which further mitigate the effects of undesired ambient and reflected light, thereby reducing noise generated within the instrument and increasing its accuracy. In one embodiment, the light shields are made removable from the optical probe, thereby facilitating replacement. A circuit for monitoring the condition of the probe, and indicating when replacement of the probe is desirable, is also disclosed.

US Patent:

7132641, Nov 7, 2006

Filed:

Mar 31, 2003

Appl. No.:

10/404961

Inventors:

Christian E. Schulz - Rancho Santa Margarita CA, US
Ammar Al-Ali - Tustin CA, US
Eugene E. Mason - La Mirada CA, US
Mike A. Mills - Golden CO, US

Assignee:

Masimo Corporation - Irvine CA

International Classification:

H01J 40/14

US Classification:

250221, 250239

Abstract:

A noninvasive optical probe has an electrical connector for connecting the optical probe to a cable connector. According to one embodiment, the electrical connector includes a durable flexible tab suspended between the housing of the optical probe and a protective cover. The electrical connector also advantageously forms, according to various embodiments, a flexible, plugable, lockable, removable, and sealable electrical connection.

US Patent:

7254434, Aug 7, 2007

Filed:

Oct 13, 2004

Appl. No.:

10/965394

Inventors:

Christian Schulz - Rancho Santa Margarita CA, US
Ammar Al-Ali - Tustin CA, US
Eugene Mason - La Mirada CA, US

Assignee:

Masimo Corporation - Irvine CA

International Classification:

A61B 5/00

US Classification:

600344, 600323

Abstract:

A variable pressure reusable sensor has a first jaw having a first hinge and an emitter and an opposing second jaw having a second hinge and a detector. A pin is disposed through the first and second hinges so as to rotatably attach the first and second jaws. The jaws are adapted to attach to a tissue site so that the emitter transmits optical radiation into the tissue site and the detector receives optical radiation after absorption by the tissue site. A spring having a plurality of legs is disposed around the pin and configured so that the legs apply force to the jaws. A tensioner is disposed proximate at least one of the jaws and configured to variably position at least one of the legs so as to adjust pressure exerted by the jaws on the tissue site.

US Patent:

7341559, Mar 11, 2008

Filed:

Jul 31, 2003

Appl. No.:

10/631882

Inventors:

Christian Schulz - Rancho Santa Margarita CA, US
Massi E. Kiani - Laguna Niguel CA, US
Eugene Mason - La Mirada CA, US

Assignee:

Masimo Corporation - Irvine CA

International Classification:

A61B 5/00

US Classification:

600309, 600344, 600485, 600500

Abstract:

An embodiment of an ear sensor assembly comprises an emitter pad and a detector pad. A clip is configured to removably retain each of the pads. The clip has an open position for placement on an ear tissue site and a closed position for securing the pads to opposite sides of the site. The assembly includes a sensor connector adapted to electrically communicate with a host instrument. A sensor cable has a first end terminating at the pads and a second end terminating at the sensor connector and provides electrical communications between the pads and the connector. In one embodiment, one or more silicone lenses or removable adhesive tabs aid in relieving patient discomfort and pressure necrosis.

US Patent:

7753275, Jul 13, 2010

Filed:

Sep 17, 2007

Appl. No.:

11/856460

Inventors:

Christian Eric Schulz - Rocklin CA, US

Assignee:

Verifone, Inc. - San Jose CA

International Classification:

G06K 7/08
G06K 5/00
G06K 7/00

US Classification:

235449, 235380, 235439

Abstract:

A point of sale device including a housing, a magnetic card reader disposed in the housing, the magnetic card reader including at least first and second heads, a flexible circuit board electrically coupled to the first and second heads and a unitary resilient head mounting element resiliently supporting the at least first and second heads independently of the flexible circuit board and electronic circuitry coupled to the magnetic card reader.

US Patent:

8358218, Jan 22, 2013

Filed:

Mar 2, 2010

Appl. No.:

12/715794

Inventors:

Richard H. H. Neo - Singapore, SG
John Barrowman - Knoxville TN, US
Christian Eric Schulz - Mission Viejo CA, US

Assignee:

Verifone, Inc. - San Jose CA

International Classification:

G08B 21/00

US Classification:

340635, 340541, 340650, 340652

Abstract:

A data entry device including a housing formed of at least two portions, data entry circuitry located within the housing, at least one case-open switch assembly operative to sense when the housing is opened and tamper indication circuitry operative to receive an input from the at least one case-open switch assembly and to provide an output indication of possible tampering with the data entry circuitry located within the housing. The at least one case-open switch assembly includes an arrangement of electrical contacts arranged on a base surface and a resiliently deformable conductive element, which defines a short circuit between at least some of the arrangement of electrical contacts only when the housing is closed.