公开(公告)号：US20240104747A1

公开(公告)日：2024-03-28

申请号：US18372905

申请日：2023-09-26

Applicant: Stryker European Operations Limited

Inventor： Emeric Umbdenstock ,  Florian Franitza ,  Marvin Koepff

IPC: G06T7/20 ,  G06T3/40 ,  G06V10/24 ,  H04N23/11

CPC classification number: G06T7/20 ,  G06T3/40 ,  G06V10/242 ,  H04N23/11 ,  G06T2207/10048 ,  G06T2207/30204 ,  G06V2201/07

Abstract: A method, computer program product, device, and tracking system for assigning marker identities to markers of a tracker are provided. The tracker includes a reference detectable in a visible light spectrum, and the markers are detectable at least in an infrared light spectrum. The markers are arranged in a pre-determined relationship relative to the reference and the pre-determined relationship is indicative of the marker identities. A method implementation includes receiving first image data of the markers captured in the infrared spectrum. The method further includes receiving second image data of the reference captured in the visible light spectrum. The first and second image data may be captured under at least essentially the same viewing angle. The method further includes assigning the marker identities to the markers determined in the first image data based on the reference determined in the second image data and the pre-determined relationship.

公开(公告)号：US20240299103A1

公开(公告)日：2024-09-12

申请号：US18596039

申请日：2024-03-05

Applicant: Stryker European Operations Limited

Inventor： Florian Franitza ,  Fadi Ghanam

IPC: A61B34/20 ,  B33Y50/00 ,  B33Y80/00 ,  G06T7/73 ,  A61B34/10

CPC classification number: A61B34/20 ,  B33Y50/00 ,  B33Y80/00 ,  G06T7/73 ,  A61B2034/107 ,  A61B2034/2065 ,  A61B2034/2072 ,  G06T2200/04 ,  G06T2207/30004 ,  G06T2207/30204

Abstract: A technique for determining a patient-specific marker for a tracker of a surgical tracking system is presented, wherein the marker arrangement is defined by marker positions. A method implementation of the technique comprises receiving three-dimensional image data of a patient, obtaining, based on the three-dimensional image data, planning data for a surgical intervention, and determining the marker arrangement for the tracker based at least on the obtained planning data.

公开(公告)号：US20220280247A1

公开(公告)日：2022-09-08

申请号：US17689382

申请日：2022-03-08

Applicant: Stryker European Operations Limited

Inventor： Florian Franitza ,  Fadi Ghanam

IPC: A61B34/20 ,  A61B90/00

Abstract: A tracker for a surgical navigation system and a method for manufacturing the tracker are presented. The tracker comprises a layer stack that comprises a substrate with at least one reflective surface configured to reflect electromagnetic radiation. The layer stack further comprises a printed absorbent layer configured to absorb electromagnetic radiation, wherein the printed absorbent layer covers less than the entire reflective surface.