Scott L Merritt

US Patent:

20200100881, Apr 2, 2020

Filed:

Sep 25, 2019

Appl. No.:

16/582666

Inventors:

- Lansdale PA, US
Scott A. Merritt - Green Lane PA, US

International Classification:

A61C 19/04
G06T 7/593
A61B 34/20

Abstract:

An approach is disclosed that involves creating an implant-supported prosthesis that is dynamically guided into position using an image-guided navigation system into position in a patient's mouth without the use of a surgical guide.

US Patent:

20180220883, Aug 9, 2018

Filed:

Mar 22, 2018

Appl. No.:

15/928974

Inventors:

- University Park PA, US
Rahul Khare - Pittsburgh PA, US
Scott A. Merritt - Golden CO, US

International Classification:

A61B 1/267
G06T 7/73
G06K 9/62
G06K 9/00
A61B 1/00

Abstract:

A global registration system and method identifies bronchoscope position without the need for significant bronchoscope maneuvers, technician intervention, or electromagnetic sensors. Virtual bronchoscopy (VB) renderings of a 3D airway tree are obtained including VB views of branch positions within the airway tree. At least one real bronchoscopic (RB) video frame is received from a bronchoscope inserted into the airway tree. An algorithm according to the invention is executed on a computer to identify the several most likely branch positions having a VB view closest to the received RB view, and the 3D position of the bronchoscope within the airway tree is determined in accordance with the branch position identified in the VB view. The preferred embodiment involves a fast local registration search over all the branches in a global airway-bifurcation search space, with the weighted normalized sum of squares distance metric used for finding the best match.

US Patent:

20160151117, Jun 2, 2016

Filed:

Dec 2, 2014

Appl. No.:

14/558255

Inventors:

- Lansdale PA, US
Scott A. Merritt - Green Lane PA, US
Edward J. Marandola - Gwynedd PA, US
Christopher W. Scharff - Collegeville PA, US
Glenn A. Straub - Douglassville PA, US

Assignee:

X-NAV TECHNOLOGIES, INC. - Lansdale PA

International Classification:

A61B 19/00
A61C 8/00
A61C 1/08
A61C 3/02
A61B 17/17
A61B 5/00

Abstract:

A visual guidance system for use in a surgical procedure. The system includes an image processing unit programmed to receive a three-dimensional image of a surgical area, information on an instrument being used in the procedure, and a surgical plan including a planned trajectory that the instrument should follow. The image processing unit generates a derived representation of the surgical procedure depicting the movement of the instrument on the three-dimensional image. A graphical guidance indicator is disposed on the three-dimensional image with a center point of the graphical guidance indicator centered on the planned trajectory, the graphical guidance indicator being displayed orthogonal to the planned trajectory. The derived image and the graphical guidance indicator depict at least five degrees of freedom of motion of the instrument. The graphical guidance indicator is changed based on the movement of the instrument in accordance with the surgical plan.