Steven K Walters

US Patent:

6940590, Sep 6, 2005

Filed:

Dec 11, 2002

Appl. No.:

10/316188

Inventors:

Steven J. Walters - Ellicott City MD, US

Assignee:

Sensors for Medicine and Science, Inc. - Germantown MD

International Classification:

G01J001/42
G01N021/01

US Classification:

356218, 356436, 436164, 436165, 436527, 436172, 422 8205, 422 8208, 422 8211, 25022714, 2504581, 2504591

Abstract:

An optical sensor device for determining the presence or concentration of an analyte, contains a waveguide disposed over a light source and a light detector mounted on a surface of a substrate and separated by an internal baffle, wherein the waveguide has a thickness corresponding to a far field emission point of the light source as determined by a light shielding baffle between the light source and light detector. An analyte indicator matrix is disposed on the outer surface of the waveguide. The sensor device geometry takes advantage of only direct illumination of the indicator matrix, and direct collection of indicator matrix illumination, without any significant reflection by said waveguide. Undesirable light noise generated by the light source passes directly out of the device through the waveguide.

US Patent:

7190445, Mar 13, 2007

Filed:

Jun 24, 2005

Appl. No.:

11/165129

Inventors:

Steven J. Walters - Ellicott City MD, US

Assignee:

Sensors for Medicine and Science, Inc. - Germantown MD

International Classification:

G01J 1/42
G01N 21/01

US Classification:

356218, 356436, 356244, 2504581, 436164, 436527, 422 8205

Abstract:

An optical sensor device for determining the presence or concentration of an analyte, contains a waveguide disposed over a light source and a light detector mounted on a surface of a substrate and separated by an internal baffle, wherein the waveguide has a thickness corresponding to a far field emission point of the light source as determined by a light shielding baffle between the light source and light detector. An analyte indicator matrix is disposed on the outer surface of the waveguide. The sensor device geometry takes advantage of only direct illumination of the indicator matrix, and direct collection of indicator matrix illumination, without any significant reflection by said waveguide. Undesirable light noise generated by the light source passes directly out of the device through the waveguide.

US Patent:

20050234316, Oct 20, 2005

Filed:

Apr 16, 2004

Appl. No.:

10/825648

Inventors:

Arthur Colvin - Mt. Airy MD, US
Carrie Lorenz - Woodbine MD, US
Casey O'Connor - Gaithersburg MD, US
Steven Walters - Ellicott City MD, US

Assignee:

Sensors for Medicine and Science, Inc. - Germantown MD

International Classification:

H01H073/00
H05K005/04
A61B005/00

US Classification:

600310000, 361757000

Abstract:

The present invention provides a biocompatible circuit assembly that includes a circuit encased within a housing. In some embodiments, the housing is a PMMA housing and before the circuit is enclosed within the housing the circuit is encased within a brick of epoxy.

US Patent:

20060282042, Dec 14, 2006

Filed:

Jun 7, 2006

Appl. No.:

11/447980

Inventors:

Steven Walters - Ellicott City MD, US
Casey O'Connor - Gaithersburg MD, US

Assignee:

Sensors for Medicine and Science, Inc. - Germantown MD

International Classification:

A61M 5/178
A61F 13/20

US Classification:

604164010, 604015000, 604038000

Abstract:

The present invention provides an insertion device and method for implanting a biosensor into a patient subject. In one embodiment, a biosensor is stored in the instrument's hydration chamber which enables the biosensor to maintain proper hydration and sterilization prior to insertion. The instrument further includes a plunger that travels along a channel within the support device. After the biosensor is placed into the channel, the user pushes the plunger causing the biosensor to move through the channel and a hollow tube and into the patient subject. The present invention also provides for packaging and storing a biosensor and insertion device so that the biosensor is hydrated and sterile prior to insertion.

US Patent:

20110255255, Oct 20, 2011

Filed:

Jun 29, 2011

Appl. No.:

13/171711

Inventors:

Arthur Earl COLVIN - Mt. Airy MD, US
Carrie R. LORENZ - Woodbine MD, US
Casey J. O'CONNOR - Gaithersburg MD, US
Steven J. WALTERS - Ellicott City MD, US

Assignee:

Sensors for Medicine and Science, Inc. - Germantown MD

International Classification:

H05K 7/02
H01L 21/56

US Classification:

361752, 26427217

Abstract:

The present invention provides a biocompatible circuit assembly that includes a circuit encased within a housing. In some embodiments, the housing is a PMMA housing and before the circuit is enclosed within the housing the circuit is encased within a brick of epoxy.

US Patent:

20200178799, Jun 11, 2020

Filed:

Dec 10, 2019

Appl. No.:

16/709345

Inventors:

- Germantown MD, US
Shang Zhao - Germantown MD, US
Steven J. Walters - Ellicott City MD, US

Assignee:

Senseonics, Incorporated - Germantown MD

International Classification:

A61B 5/00
A61B 5/145
A61B 5/1495

Abstract:

An analyte monitoring system may include an analyte sensor, a transceiver, and a display device. The transceiver may be configured to operate in two or more modes of operation. The display device may be configured to communicate with the transceiver. The two or more modes of operation may include a clinical mode in which the transceiver receives first sensor data from the analyte sensor and calculates one or more first analyte levels using at least the received first sensor data but does not convey the one or more first analyte levels to the display device. The two or more modes of operation may include an unblinded mode in which the transceiver receives second sensor data from the analyte sensor, calculates one or more second analyte levels using at least the received second sensor data, and conveys the one or more second analyte levels to the display device.

US Patent:

20180132721, May 17, 2018

Filed:

Jul 24, 2017

Appl. No.:

15/657769

Inventors:

- Germantown MD, US
Carrie R. Lorenz - Woodbine MD, US
Casey J. O'Connor - Gaithersburg MD, US
Steven J. Walters - Ellicott City MD, US

Assignee:

Senseonics, Incorporated - Germantown MD

International Classification:

A61B 5/00
H05K 5/06

Abstract:

The present invention provides a biocompatible circuit assembly that includes a circuit encased within a housing. In some embodiments, the housing is a PMMA housing and before the circuit is enclosed within the housing the circuit is encased within a brick of epoxy.

US Patent:

20160345830, Dec 1, 2016

Filed:

May 27, 2016

Appl. No.:

15/167569

Inventors:

- Germantown MD, US
Todd Whitehurst - Germantown MD, US
Christina Long - Germantown MD, US
Steven Walters - Germantown MD, US
Andrew Dehennis - Germantown MD, US

Assignee:

Senseonics, Incorporated - Germantown MD

International Classification:

A61B 5/00
A61B 5/1455
A61B 5/1495
A61B 5/145

Abstract:

A computing device receives analyte data produced by an analyte monitoring sensor over a communications link from at least one first device. Health data, comprising at least part of the analyte data, may be communicated over a communications link to at least one second device in response to a request. The first device may be positioned over the analyte monitoring sensor using signal strength and location information. External analyte data may be employed to calibrate the analyte monitoring sensor.