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公开(公告)号：US20240225775A9
公开(公告)日：2024-07-11
申请号：US18278992
申请日：2022-02-25
Applicant: Stryker European Operations Limited
Inventor： James G. Walen , Rahul Eapen , Clifford Edwin Lambarth , Caleb Gossens , Fadi Ghanam , Michael Laubenthal , John Andrew Snodgrass
CPC classification number: A61B90/08 , A61B34/20 , A61B2034/2055
Abstract: An adapter for removably coupling a tracker to a surgical handpiece includes a proximal member having an interface configured to engage and prevent rotation of the proximal member relative to the surgical handpiece, a distal member slidably and rotatably coupled to the proximal member, a biasing member disposed between the proximal distal members and configured to urge the proximal and distal members in opposing directions, and a tracking array mount coupled to the distal member. The biasing member is configured to be compressed by a reference feature of the end effector and the surgical handpiece when the distal member is disposed on the end effector and the end effector is coupled to the surgical handpiece, the compressed biasing member creating a frictional force between the distal and proximal members that resists rotation of the distal member relative to the proximal member.
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公开(公告)号：US20220395336A1
公开(公告)日：2022-12-15
申请号：US17837376
申请日：2022-06-10
Applicant: Stryker European Operations Limited
Inventor： Fadi Ghanam
Abstract: A tracker system for determining poses of at least two vertebrae and a computer-implemented method of using the tracker system are presented. The tracker system comprises a first and second trackers, trackable in 5 degrees of freedom (DOF), and attachable to a first and second vertebra, respectively. A tracking coordinate system is registered in 6 DOF with an image coordinate system associated with first image data taken by a medical imaging system and indicative of the first and second vertebra. The method includes receiving intraoperative tracking data and determining, from the received intraoperative tracking data, tracker poses of the first tracker and the second tracker in 5 DOF. Further still, the method comprises determining, from the tracker poses and based on the registration of the tracking coordinate system with the image coordinate system, poses of the first vertebra and the second vertebra in 5 DOF.
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公开(公告)号：US20220354587A1
公开(公告)日：2022-11-10
申请号：US17734532
申请日：2022-05-02
Applicant: Stryker European Operations Limited
Inventor： Fadi Ghanam , Emeric Umbdenstock
Abstract: A tracker, a surgical tracking system, and a method for operating the tracker are provided. The tracker comprises an interface configured to attach the tracker to a surgical object that is to be tracked. The tracker further comprises circuitry comprising a detector configured to detect electromagnetic radiation, wherein the circuitry is configured to generate a trigger signal upon detection of a change of intensity of electromagnetic radiation by the detector. The circuitry further comprises a plurality of emitters configured to emit electromagnetic radiation, wherein the circuitry is configured to control the plurality of emitters to emit electromagnetic radiation responsive to the trigger signal.
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公开(公告)号：US20240374324A1
公开(公告)日：2024-11-14
申请号：US18784228
申请日：2024-07-25
Applicant: Stryker European Operations Limited
Inventor： Fadi Ghanam , James G. Walen , Clifford Edwin Lambarth , Caleb Gossens
Abstract: A navigation system for navigating a medical instrument is provided. The system includes a localizer, a tracking array, and a processor. The tracking array has a first tracking face and a second tracking face which are coupled to one another and collectively include a plurality of optical tracking elements. The processor is configured to measure relative positions of the plurality of optical tracking elements while visible to the localizer, measure relative positions of the at least one optical tracking element of the first tracking face and at least one optical tracking element of the second tracking face while visible to the localizer at the same time, and create a composite rigid body based on the measured relative positions of at least one optical tracking element of the first tracking face and the at least one optical tracking element of the second tracking face while visible at the same time.
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5.发明公开公开(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
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.
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Patent Agency Ranking
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
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.
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7.发明申请公开(公告)号：US20220117672A1
公开(公告)日：2022-04-21
申请号：US17502664
申请日：2021-10-15
Applicant: Stryker European Operations Limited
Inventor： Fadi Ghanam , Yannik Guth
Abstract: A method and device for determining a radius of a spherically shaped surface portion of a tip of an instrument. A first pose of a first tracker and a second pose of a second tracker may be determined while the spherically shaped surface portion is in abutment with a calibration structure. A reference position of a first reference point relative to the second tracker may be determined when the first tracker is in the first pose and the second tracker is in the second pose based on the first pose, the second pose, and a first predetermined relationship. A third pose of the first tracker and a fourth pose of the second tracker may be determined. The radius of the spherically shaped surface portion may be determined based on the third pose, a second predetermined relationship, a reference position, the fourth pose, and an opening angle.
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公开(公告)号：US20210236212A1
公开(公告)日：2021-08-05
申请号：US17219067
申请日：2021-03-31
Applicant: Stryker European Operations Limited
Inventor： Fadi Ghanam , James G. Walen , Clifford Edwin Lambarth , Caleb Gossens
Abstract: An optical tracker usable with a surgical object, the optical tracker includes a tracker frame including a mounting body, which defines an instrument engaging aperture having a longitudinal axis, and an offset body protruding proximally from the mounting body. The instrument engaging aperture is configured to receive a proximal region of the surgical instrument such that the longitudinal axis of the tracker is aligned with an axis of the surgical instrument. The tracker may further include a tracking array coupled to the tracker frame and comprising a mounting fixture and a plurality of LED emitters coupled thereto. The optical tracker may further comprise at least three apex points defined by the tracker frame that extend to a height above the LED emitters.
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公开(公告)号：US12064190B2
公开(公告)日：2024-08-20
申请号：US17219067
申请日：2021-03-31
Applicant: Stryker European Operations Limited
Inventor： Fadi Ghanam , James G. Walen , Clifford Edwin Lambarth , Caleb Gossens
CPC classification number: A61B34/20 , A61B90/39 , G06T7/20 , A61B2034/2055 , A61B2034/2072 , A61B2090/3979 , G06T2207/10048 , G06T2207/30004 , G06T2207/30208
Abstract: An optical tracker usable with a surgical object, the optical tracker includes a tracker frame including a mounting body, which defines an instrument engaging aperture having a longitudinal axis, and an offset body protruding proximally from the mounting body. The instrument engaging aperture is configured to receive a proximal region of the surgical instrument such that the longitudinal axis of the tracker is aligned with an axis of the surgical instrument. The tracker may further include a tracking array coupled to the tracker frame and comprising a mounting fixture and a plurality of LED emitters coupled thereto. The optical tracker may further comprise at least three apex points defined by the tracker frame that extend to a height above the LED emitters.
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公开(公告)号：US11883116B2
公开(公告)日：2024-01-30
申请号：US17546411
申请日：2021-12-09
Applicant: Stryker European Operations Limited
Inventor： Fadi Ghanam , Fabian Riegelsberger , David Hofmann , Reinhold Zimmermann , Andreas Reutter
CPC classification number: A61B34/20 , A61B34/76 , A61B2034/2051
Abstract: 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.
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