Stryker European Operations Holdings LLC

Stryker European Operations Limited

Stryker European Holdings I LLC

Reinhold Zimmermann

Fadi Ghanam

Jochen Breisacher

Florian Herrmann

Fabian Riegelsberger

Emeric Umbdenstock

Gerd Ulrich Gamm

David Hofmann

Andreas Reutter

A tracker for a surgical navigation system, a tracker system, and a surgical navigation system are provided. The tracker comprises a carrier and an electrical circuit disposed on the carrier. The electrical circuit comprises at least one infrared light emitting diode, IR-LED, and a battery or a wireless power reception device configured to receive power wirelessly, wherein the battery or the wireless power reception device is configured to provide power to operate the at least one IR-LED. The electrical circuit is configured to limit a current for at least one of the at least one IR-LED to not exceed 15 mA.

Tracker for a surgical navigation system

A tracker, a surgical navigation system with the tracker, and a method of operating the tracker are described. The tracker comprises a first switch configured to be operated between a first switch configuration and a second switch configuration. The tracker also comprises one or more sources of electromagnetic radiation configured to selectively emit electromagnetic radiation with a first radiation characteristic or a second radiation characteristic. The tracker further comprises electrical circuitry configured to selectively control the one or more sources of electromagnetic radiation to emit electromagnetic radiation having the first radiation characteristic in the first switch configuration and to emit electromagnetic radiation having the second radiation characteristic in the second switch configuration, wherein the second radiation characteristic is different from the first radiation characteristic.

Tracker with switchable radiation characteristics

An optical tracking device, a surgical navigation system and a surgical navigation method are disclosed. The optical tracking device comprises a body having at least two optically distinguishable lines, wherein at least one of the lines is an edge of the body. The lines are configured to be detected by an optical detection system simultaneously. They have a fixed spatial relationship between each other. The method comprises providing the optical tracking device, acquiring data describing the fixed spatial relationship, detecting the lines and determining the spatial position and/or orientation of the optical tracking device based on the detected lines and the fixed spatial relationship.

Optical tracking device with optically distinguishable lines

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Freiburg, Germany

Reinhold Zimmermann