Bryan Howell

US Patent:

58082751, Sep 15, 1998

Filed:

Feb 1, 1995

Appl. No.:

8/382130

Inventors:

Dalal Kanafani Hibri - San Antonio TX
David Allen Monroe - San Antonio TX
Chris N. Lenart - San Francisco CA
Beth K. Mosher - Portland OR
Bryan F. Howell - Austin TX
David R. Davis - San Antonio TX

Assignee:

Dalal Kana Fani Hibri - San Antonio TX

International Classification:

H05B 100

US Classification:

219222

Abstract:

A hair shaping apparatus is provided employing one or more hollow rollers. The rollers can be arranged in concentric fashion and electrically heated by an activator unit, wherein one end of the activator unit is inserted into one end of the concentrically arranged rollers, and the other end of the activator unit can be plugged into an electrical wall outlet. The activator unit can be reversed for storage, whereby the AC plugs which connect to the wall outlet are inserted into the hollow opening of the roller to present a low-profile configuration for ease of portability. One or multiple receptacles can be connected to an activator unit, wherein the activator unit is connected to a wall outlet in order to heat a plurality of singular or concentrically arranged hollow rollers connected to the receptacles.

US Patent:

D3755789, Nov 12, 1996

Filed:

Feb 1, 1995

Appl. No.:

D/034314

Inventors:

Dalal K. Hibri - San Antonio TX
David A. Monroe - San Antonio TX
Chris N. Lenart - San Francisco CA
Beth K. Mosher - San Francisco CA
Bryan F. Howell - Austin TX
David R. Davis - San Antonio TX

US Classification:

D28 37

US Patent:

20180104479, Apr 19, 2018

Filed:

Dec 18, 2017

Appl. No.:

15/845127

Inventors:

- Durham NC, US
Bryan Howell - Durham NC, US
Shivanand P. Lad - Durham NC, US

International Classification:

A61N 1/05
A61N 1/36

Abstract:

Systems, methods, and devices are disclosed for optimizing patient-specific stimulation parameters for spinal cord stimulation. A patient-specific anatomical model is developed based on a pre-operative image, and a patient-specific electrical model is developed based on the anatomical model. The inputs to the electric model are chosen, and the model is used to calculate a distribution of electrical potentials within the modeled domain. Models of neural elements are stimulated with the electric potentials and used to determine which elements are directly activated by the stimulus. Information about the models inputs and which neural elements are active is applied to a cost function. Based on the value of the cost function, the inputs to the optimization process may be adjusted. Inputs to the optimization process include lead/electrode array geometry, lead configuration, lead positions, and lead signal characteristics, such as pulse width, amplitude, frequency and polarity.

US Patent:

20170165489, Jun 15, 2017

Filed:

Nov 21, 2016

Appl. No.:

15/356895

Inventors:

- Cleveland OH, US
Bryan Howell - Cleveland OH, US

International Classification:

A61N 1/36
G06F 17/50
A61N 1/05

Abstract:

Example systems and methods concern systems and methods for modeling conduction in a volume. In one embodiment, diffusion eigenvalues of a plurality of diffusion tensors are received. The diffusion tensors are associated with an anatomical structure having heterogeneous and anisotropic tissues. In one embodiment, the diffusion eigenvalues of the diffusion tensors are calculated from imaging data. Then one or more conductance ratios of a conductivity tensor are set based, at least in part, on one or more diffusion ratios of a corresponding diffusion tensor. The conductance eigenvalues of a conductivity tensor can then be calculated based, at least in part, on the one or more conductance ratios of the conductivity tensor. A volume-conductor model of the anatomical structure is generated based, at least in part, on the plurality of calculated conductivity tensors.

US Patent:

20170161454, Jun 8, 2017

Filed:

Jul 1, 2015

Appl. No.:

15/321801

Inventors:

Bryan HOWELL - Durham NC, US
- Durham NC, US

International Classification:

G06F 19/00
A61N 1/372
A61N 1/36
G06F 17/13
A61N 1/05

Abstract:

Systems and methods for model-based optimization of spinal cord stimulation electrodes and devices are disclosed. According to an aspect a method includes providing a patient-specific electroanatomical model including the spine, spinal cord, and a map of target neural elements and non-target neural elements. The method also includes using model electrodes to stimulate the target neural elements. Further, the method includes determining differences in activation thresholds between the target neural elements and the non-target neural elements in a plurality of different configurations of the model electrodes. The method also includes generating an optimal spinal cord stimulation electrode configuration based on the determined differences in activation thresholds.