The Johns Hopkins University

USA As Represented by Secretary of the Navy

Clear Guide Medical, Inc.

The United States of America As Represented by the Secretary of

Ehsan Basafa

Mehran Armand

Chad R Gordon

Ryan J Murphy

Peter Liacouras

Gerald T Grant

Kevin David Wolfe

Pezhman Foroughi

Philipp Jakob Stolka

Gregory Donald Hager

Emad M Boctor

Russell H Taylor

Michael D Kutzer

Christopher Y Brown

Martin Hossbach

An image guided surgical system includes a marker attachable to and removable from an elongated surgical tool having a shaft, and at least one camera, and an image processing system in communication with the camera configured to obtain an image of the surgical tool. The image processing system is configured to operate in a calibration mode to generate a template and display the template on a display device and to receive a user input, after the image of the surgical tool is aligned to the template, to adjust a length of the template to substantially match a length of the surgical tool. A storage device in communication with the image processing system is included to store calibration information that associates a position of the marker with a position of the tip of the shaft of the surgical tool based on the adjusted length of the template.

System and methods for navigating interventional instrumentation

A method for computer-assisted planning of a transplant surgery is provided. The method includes obtaining a computer-readable representation of a donor and recipient skeletal fragment; determining surgical cutting planes on the computer-readable representation of the donor skeletal fragment from which a portion of the donor skeletal fragment from the computer-readable representation of the donor skeletal fragment will be harvested; determining virtual cutting guides; performing a virtual osteotomy to separate the portion of the donor skeletal fragment from the computer-readable representation of the donor skeletal fragment from a remainder portion of the donor skeletal fragment based on a position of the virtual cutting guides that are attached to the computer-readable representation of the donor skeletal fragment; positioning the donor skeletal fragment within a transplant region of the recipient skeletal fragment; and creating a hybrid computer-readable representation comprising the recipient skeletal fragment and the portion of the donor skeletal.

Computer-assisted planning and execution system

Disclosed is a method of simulating mastication. The method includes obtaining computer-readable three-dimensional representations of a first skeletal fragment including a portion of at least one of a mandible and a maxilla and of a recipient skeletal fragment including a portion of at least one of a mandible and a maxilla. The method also includes obtaining placement data and obtaining muscle insertion data. The method also includes simulating a contraction of a muscle positioned according to the muscle insertion data in a representation of a surgical hybrid comprising at least a portion of the first skeletal fragment positioned according to the placement data relative to at least a portion of the recipient skeletal fragment. The method also includes outputting a representation of mastication represented by the simulating.

Orthognathic biomechanical simulation

Systems and methods for image guidance, which may include an image processing unit, cameras, and handheld real-time imaging components or handheld displays, wherein the cameras observe visual features on patients, tools, or other components, and wherein said features allow camera or object positions to be determined relative to secondary image data or a reference position, and wherein the image processing unit is configured to dynamically register observations with secondary image data, and to compute enhanced images based on combinations of one or more of secondary image data, positioning data, and real-time imaging data.

System and method for fused image based navigation with late marker placement

A device includes first and second sheets of first and second elastic materials, respectively, and a control wire. The first sheet has a first thickness and a first length and is shaped to have a first cross-section having a first inner periphery and a first outer periphery. The second sheet has a second thickness and a second length and is shaped to have a second cross-section having a second inner periphery and a second outer periphery. One of the first sheet and the second sheet has a spacing disposed in along one of the first length and the second length, respectively. The first outer periphery is less than or equal to the second inner periphery. The second sheet surrounds the first sheet. The control wire has an end constrained to one of the first sheet the first material and the second sheet. The control wire is disposed within the spacing.

Cable-driven morphable manipulator

Growing community of inventors

Baltimore, MD, United States of America

Ehsan Basafa