Position tracking system for tracking an internal device during an imaging

Inventors

FRANCOIS, Quentin • Duplat, Bertrand • HALIYO, SINAN • RÉGNIER, Stephane • ZARADER, Pierre

Assignees

Centre National de la Recherche Scientifique • Sorbonne Université • Robeaute SAS

Abstract

A signal tracking system including: one fixation element to be secured to a rigid body part of the patient surrounding a target body part, the fixation element further including a mapping element, one tracker element to be secured to the fixation element to track, in real time, the internal tracker, and a control unit including a memory to store an internal referential and one image displaying the target body part and one fixation element. The control unit is designed to define, inside the internal referential, at least one 3D frame position attached to the at least one fixation element, and to precisely locate each point of the target body part, the control unit is further designed to precisely localize, in real time, the internal tracker inside the target body part.

Core Innovation

The invention provides a signal tracking system configured to track an internal tracker situated inside a target body part of a patient. The system uses at least one fixation element designed to be secured to a rigid body part of the patient surrounding at least partially the target body part, where the fixation element comprises a mapping element, and at least one tracker element is secured to the fixation element and is designed to track the internal tracker in real time.

The system includes a control unit configured to collect, in real time, tracking information from the at least one tracker element. The control unit comprises a memory storing an internal referential and at least one unique pre-established image displaying at least a portion of the patient’s target body part or an element situated inside the target body part, and the unique pre-established image displays the at least one fixation element and the at least one mapping element.

Using the internal referential, the control unit defines at least one 3D frame position attached to the at least one fixation element and precisely locates the portion of the patient’s target body part or the element situated inside the target body part with regard to the 3D frame position. The control unit further precisely localizes, in real time, within the internal referential, the internal tracker inside the target body part with regard to the at least one 3D frame position.

Claims Coverage

The document includes one independent claim, with four inventive features centered on positioning and real-time localization of an internal tracker using a patient-internal referential defined in pre-established images that display fixation and mapping elements, and establishing 3D frame positions attached to the fixation elements.

Overall, the claim set covers a signal tracking system that establishes a single internal referential from unique pre-established images showing fixation and mapping elements, defines 3D frame positions attached to the fixation elements within that internal referential, and uses real-time tracking information to precisely localize an internal tracker in real time relative to those 3D frame positions.

Stated Advantages

Documented Applications