David K Hunter

US Patent:

6978561, Dec 27, 2005

Filed:

Apr 15, 2005

Appl. No.:

11/106810

Inventors:

David Gavin Hunter - Towson MD, US

International Classification:

G09F001/04

US Classification:

4012401, 4012403

Abstract:

An improved greeting card is presented that incorporates cellular bubble material, such as bubble wrap, into the images and or text thereon. The bubbles of the cellular bubble material may be popped, thereby providing an amusing and pleasurable activity for the recipient of the card. By making reference to the popping activity, the message on the card may be reinforced. The cellular bubble material provides pleasing visual and tactile features, and if used in quantity provides integral protection of the card and its contents.

US Patent:

60272163, Feb 22, 2000

Filed:

Oct 15, 1998

Appl. No.:

9/172842

Inventors:

David Lee Guyton - Baltimore MD
David George Hunter - Baltimore MD
Saurabh Navinchandra Patel - Monmouth Junction NJ
Julie Christine Sandruck - Rochester NY
Robert Lee Fry - New Windsor MD

Assignee:

The Johns University School of Medicine - Baltimore MD

International Classification:

A61B 310

US Classification:

351200

Abstract:

Apparatus and method are provided for assessing the direction of fixation of an eye by detecting polarization-related changes in light retroreflected from the fundus of the eye. Nerve fibers in the retina of the eye are birefringent and alter the polarization state of light traversing them as a function of their orientation. The nerve fibers are arrayed in a characteristic pattern in the retina, specifically radiating outward from the fovea and converging to the optic nerve head. By assessment of polarization-related changes in rctroreflected light from multiple retinal areas either sequentially or simultaneously, characteristic birefringence signatures of portions of the retina can be identified which are used to assess the direction of fixation of the eye. In addition, interference from the corneal birefringence is reduced by using incident light having a polarization state that is substantially independent of meridional direction. Circularly polarized light or non-polarized light is used for the assessment.

US Patent:

20210290967, Sep 23, 2021

Filed:

Jun 8, 2021

Appl. No.:

17/342405

Inventors:

- Baltimore MD, US
Ronald David Berger - Baltimore MD, US
Seth Weinberg - Williamsburg VT, US
Leslie Tung - Baltimore MD, US
Henry Halperin - Baltimore MD, US
David Hunter - Baltimore MD, US

International Classification:

A61N 1/39
A61N 1/362
A61N 1/06
A61N 1/365

Abstract:

The present invention provides both methods and devices for termination of arrhythmias, such as ventricular or atrial tachyarrhythmias. The device and method involves application of alternating current (AC) for clinically significant durations at selected therapeutic frequencies through the cardiac tissue to a subject experiencing arrhythmia. Methods are also provided to minimize or eliminate pain during defibrillation.

US Patent:

20150258344, Sep 17, 2015

Filed:

Jan 23, 2015

Appl. No.:

14/604457

Inventors:

- Baltimore MD, US
Ronald David Berger - Baltimore MD, US
Seth Weinberg - Williamsburg VA, US
Leslie Tung - Baltimore MD, US
Henry Halperin - Baltimore MD, US
David Hunter - Baltimore MD, US

International Classification:

A61N 1/39
A61N 1/365
A61N 1/362
A61N 1/06

Abstract:

The present invention provides both methods and devices for termination of arrhythmias, such as ventricular or atrial tachyarrhythmias. The device and method involves application of alternating current (AC) for clinically significant durations at selected therapeutic frequencies through the cardiac tissue to a subject experiencing arrhythmia. Methods are also provided to minimize or eliminate pain during defibrillation.