Robert W O'Connell

US Patent:

20230044983, Feb 9, 2023

Filed:

Oct 24, 2022

Appl. No.:

17/972420

Inventors:

- Sunnyvale CA, US
Eric Schnarr - McFarland WI, US
Petr Jordan - Redwood City CA, US
Jay B. West - Mountain View CA, US
Robert O'Connell - Madison WI, US

International Classification:

A61N 5/10
G06T 7/73
G06T 7/00
A61B 6/00
A61B 90/00
G16H 20/40
G16H 40/63
G16H 30/40
G06T 7/33

Abstract:

A method of sequential monoscopic tracking is described. The method includes generating a plurality of projections of an internal target region within a body of a patient, the plurality of projections comprising projection data about a position of an internal target region of the patient. The method further includes generating external positional data about external motion of the body of the patient using one or more external sensors. The method further includes generating, by a processing device, a correlation model between the projection data and the external positional data by fitting the plurality of projections of the internal target region to the external positional data. The method further includes estimating the position of the internal target region at a later time using the correlation model.

US Patent:

20200346038, Nov 5, 2020

Filed:

Jul 17, 2020

Appl. No.:

16/932464

Inventors:

- Sunnyvale CA, US
Robert O'Connell - Madison WI, US
Richard Nash - Allison Park PA, US
Matthew Orton - Oregon WI, US
Jacob Shea - Madison WI, US

International Classification:

A61N 5/10

Abstract:

A radiation delivery system and method of operation are described. The method includes modulating a sub-beam intensity of a radiation beam generated by a radiation source across a plurality of sub-beams that subdivide a fluence field into a two-dimensional (2D) grid, and delivering a plurality of independent two-dimensional (2D) sub-beam intensity patterns from a plurality of angles while the radiation source is moved continuously.

US Patent:

20200043624, Feb 6, 2020

Filed:

Aug 6, 2018

Appl. No.:

16/055507

Inventors:

- Sunnyvale CA, US
Robert O'Connell - Madison WI, US
Richard Nash - Allison Park PA, US
Matthew Orton - Oregon WI, US
Jacob Shea - Madison WI, US

International Classification:

G21K 1/04
A61N 5/10

Abstract:

A system for delivering radiation dose, includes a gantry to move about a target to be irradiated and a radiation source mounted to the gantry and directed inward toward the target, The system further includes a collimator mounted to the gantry and in front of the radiation source, the collimator to shape a radiation beam directed at the target, wherein the collimator is to modulate a sub-beam intensity of the radiation beam across a plurality of sub-beams that subdivide a fluence field into a two-dimensional (2D) grid, and wherein a plurality of independent two-dimensional (2D) sub-beam intensity patterns are delivered from a plurality of gantry angles while the gantry moves continuously.

US Patent:

20180289982, Oct 11, 2018

Filed:

Apr 4, 2018

Appl. No.:

15/945580

Inventors:

- Sunnyvale CA, US
Eric Schnarr - McFarland WI, US
Petr Jordan - Redwood City CA, US
Jay B. West - Mountain View CA, US
Robert O'Connell - Madison WI, US

International Classification:

A61N 5/10
G06T 7/73
G06T 7/00
A61B 6/00
A61B 6/03

Abstract:

A method of sequential monoscopic tracking is described. The method includes generating a plurality of projections of an internal target region within a body of a patient, the plurality of projections comprising projection data about a position of an internal target region of the patient. The method further includes generating external positional data about external motion of the body of the patient using one or more external sensors. The method further includes generating, by a processing device, a correlation model between the projection data and the external positional data by fitting the plurality of projections of the internal target region to the external positional data. The method further includes estimating the position of the internal target region at a later time using the correlation model.

US Patent:

20140239204, Aug 28, 2014

Filed:

Feb 19, 2014

Appl. No.:

14/184568

Inventors:

- Sunnyvale CA, US
Robert Mastromattei - Loomis CA, US
Robert O'Connell - Madison WI, US
Richard C. Schmidt - Verona WI, US
Graham Reitz - Madison WI, US

International Classification:

G21K 1/02

US Classification:

2505051

Abstract:

A multi-leaf collimator with electromagnetically actuated leaves. The multi-leaf collimator includes a plurality of leaves, a leaf guide configured to support the plurality of leaves, and a plurality of magnets. Each leaf includes a blocking portion that is radio opaque, a drive portion connected to the blocking portion, and a coil embedded in the drive portion. The coil is operatively connected to an electrical current source to generate a first magnetic field. The first magnetic field interacts with the magnetic field generated by the magnet to thereby move the leave to a desired state. The leaves have the capability of moving at speeds of 50 cm/s up to and higher than 1 m/s.