David W Stern

US Patent:

6480324, Nov 12, 2002

Filed:

Jun 14, 2001

Appl. No.:

09/880058

Inventors:

Calvin F. Quate - Stanford CA
David Stern - Mountain View CA

Assignee:

Affymetrix, Inc. - Santa Clara CA

International Classification:

G02B 2608

US Classification:

359298, 359291, 359223, 359224, 348203, 345 84

Abstract:

An improved optical photolithography system and method provides predetermined light patterns generated by a direct write system without the use of photomasks. The Direct Write System provides predetermined light patterns projected on the surface of a substrate (e. g. , a wafer) by using a computer controlled component for dynamically generating the predetermined light pattern, e. g. , a spatial light modulator. Image patterns are stored in a computer and through electronic control of the spatial light modulator directly illuminate the wafer to define a portion of the polymer array, rather than being defined by a pattern on a photomask. Thus, in the Direct Write System each pixel is illuminated with an optical beam of suitable intensity and the imaging (printing) of an individual feature is determined by computer control of the spatial light modulator at each photolithographic step without the use of a photomask. The Direct Write System including a spatial light modulator is particularly useful in the synthesis of DNA arrays and provides an efficient element for polymer array synthesis by using spatial light modulators to generate a predetermined light pattern that defines the image patterns of a polymer array to be deprotected.

US Patent:

6855115, Feb 15, 2005

Filed:

Jan 22, 2002

Appl. No.:

10/054672

Inventors:

Michael Fonseca - Atlanta GA, US
Mark Allen - Atlanta GA, US
David Stern - Grayson GA, US
Jason White - Atlanta GA, US
Jason Kroh - Villa Rica GA, US

Assignee:

Cardiomems, Inc. - Atlanta GA

International Classification:

A61B005/0215

US Classification:

600488, 600486, 600587, 607 60

Abstract:

The progress of a endovascular cardiac repair can be monitored by inserting a pressure transducer sensor using a catheter into a chamber of the heart during endovascular repair and then using a small, hand-held read out device to measure pressure easily, safely, inexpensively and accurately. In one aspect a sensor is introduced into the body by the steps of folding or rolling the sensor into a cylinder, loading it into a catheter, and deploying into the heart chamber by allowing it to unroll or unfold, either by itself or facilitated by the incorporation of a super-elastic alloy component.

US Patent:

7141063, Nov 28, 2006

Filed:

Aug 6, 2003

Appl. No.:

10/636324

Inventors:

Jason White - Atlanta GA, US
David Stern - Grayson GA, US

Assignee:

Icon Medical Corp. - Cleveland OH

International Classification:

A61F 2/06
F16C 11/00

US Classification:

623 115, 403103

Abstract:

A stent is constructed using interconnected links having micro-mechanical latching mechanisms. The micro-mechanical latching elements allow relative rotational movement of interconnected links in one rotational direction but restrict relative rotational movement of the two links in the opposite direction. The micro-mechanical latch surface features are formed using microelectronic mechanical systems (MEMS) manufacturing methods. The male surface of the latching components contains an array of ridges or protrusions, and the receiving surface contains a matching array of recesses. The array of ridges or protrusions and the corresponding recesses have uniformly dissimilar slopes that result in a substantially greater frictional force in one direction than in the opposite direction. The separation distance between the two surfaces is such that the male latch surface is engaged with the receiving surface recesses in the low stress “locked” state, preventing motion in the undesired direction. Each male ridge or protrusion can be underlined by a void that promotes elastic deflection when sliding in the desired direction and recovery into the ‘locked’ state when aligned with the recesses.

US Patent:

7147604, Dec 12, 2006

Filed:

Aug 7, 2002

Appl. No.:

10/215379

Inventors:

Mark Allen - Atlanta GA, US
Michael Fonseca - Atlanta GA, US
Jason White - Atlanta GA, US
Jason Kroh - Villa Rica GA, US
David Stern - Grayson GA, US

Assignee:

CardioMEMS, Inc. - Atlanta GA

International Classification:

A61B 5/00

US Classification:

600549

Abstract:

A sensor for wirelessly determining a physical property within a defined space comprises an electrical resonance and has a high quality factor Q. The quality factor Q is sufficiently high that a signal generated by the sensor can be received outside the defined space. The sensor may optimally have a dielectric coating.

US Patent:

7255710, Aug 14, 2007

Filed:

Aug 6, 2003

Appl. No.:

10/636323

Inventors:

Jason White - Atlanta GA, US
David Stern - Grayson GA, US
Mark Allen - Atlanta GA, US
David O'Brien - Norcross GA, US

Assignee:

ICON Medical Corp. - Cleveland OH

International Classification:

A61F 2/06

US Classification:

623 115

Abstract:

A stent constructed using elements containing micro-mechanical latching mechanisms is disclosed. The micro-mechanical latching elements allow sliding motion between two surfaces in one direction, and restrict sliding motion in the opposite direction. The micro-mechanical latch surface features are formed using microelectronic mechanical systems (MEMS) manufacturing methods. The male surface of the latching components contains an array of ridges or protrusions, and the receiving surface contains a matching array of recesses. The array of ridges or protrusions and the corresponding recesses have uniformly dissimilar slopes that result in a substantially greater frictional force in one direction than in the opposite direction. The separation distance between the two surfaces is such that the male latch surface is engaged with the receiving surface recesses in the low stress “locked” state, preventing motion in the undesired direction.

US Patent:

7481771, Jan 27, 2009

Filed:

Jul 7, 2004

Appl. No.:

10/886829

Inventors:

Michael Fonseca - Atlanta GA, US
Mark Allen - Atlanta GA, US
David Stern - Grayson GA, US
Jason White - Atlanta GA, US
Jason Kroh - Villa Rica GA, US

Assignee:

CardioMEMS, Inc. - Atlanta GA

International Classification:

A61B 5/0215

US Classification:

600486, 607 60

Abstract:

The progress of a endovascular cardiac repair can be monitored by inserting a pressure transducer sensor using a catheter into a chamber of the heart during endovascular repair and then using a small, hand-held read out device to measure pressure easily, safely, inexpensively and accurately. In one aspect a sensor is introduced into the body by the steps of folding or rolling the sensor into a cylinder, loading it into a catheter, and deploying into the heart chamber by allowing it to unroll or unfold, either by itself or facilitated by the incorporation of a super-elastic alloy component.

US Patent:

7574792, Aug 18, 2009

Filed:

Jun 22, 2006

Appl. No.:

11/472905

Inventors:

David O'Brien - Norcross GA, US
Jason White - Atlanta GA, US
Michael Fonseca - Atlanta GA, US
Jason Kroh - Villa Rica GA, US
Mark Allen - Atlanta GA, US
David Stern - Grayson GA, US

Assignee:

CardioMEMS, Inc. - Atlanta GA

International Classification:

H01F 7/06

US Classification:

29606, 29600, 29604, 29605

Abstract:

In the disclosed method of manufacturing an implantable wireless sensor, a cavity is etched in one side of a first substrate. A conductive structure are formed on the base of the cavity. A second conductive structureare formed on a surface of a second substrate, and the two substrates are mutually imposed such that the two conductive plates and coils are disposed in opposed, spaced-apart relation. A laser is then used to cut away perimeter portions of the imposed substrates and simultaneously to heat bond the two substrates together such that the cavity in the first substrate is hermetically sealed.

US Patent:

7628802, Dec 8, 2009

Filed:

Jan 17, 2006

Appl. No.:

11/333485

Inventors:

Jason White - Atlanta GA, US
David Stern - Grayson GA, US

Assignee:

ICON Medical Corp. - Atlanta GA

International Classification:

A61F 2/06

US Classification:

623 115

Abstract:

A stent is constructed using interconnected links having micro-mechanical latching mechanisms. The micro-mechanical latching elements allow relative rotational movement of interconnected links in one rotational direction but restrict relative rotational movement of the two links in the opposite direction. The micro-mechanical latch surface features are formed using micro-electronic mechanical systems (MEMS) manufacturing methods. The male surface of the latching components contains an array of ridges or protrusions, and the receiving surface contains a matching array of recesses. The array of ridges or protrusions and the corresponding recesses have uniformly dissimilar slopes that result in a substantially greater frictional force in one direction than in the opposite direction. The separation distance between the two surfaces is such that the male latch surface is engaged with the receiving surface recesses in the low stress “locked” state, preventing motion in the undesired direction. Each male ridge or protrusion can be underlined by a void that promotes elastic deflection when sliding in the desired direction and recovery into the ‘locked ’ state when aligned with the recesses.