知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

15 records (took 0.019 seconds)

    Technique For Determining A Need For A Re-Registration Of A Patient Tracker Tracked By A Camera System
    2.
    发明公开
    Technique For Determining A Need For A Re-Registration Of A Patient Tracker Tracked By A Camera System 审中-公开

    公开(公告)号：US20230225796A1

    公开(公告)日：2023-07-20

    申请号：US18097388

    申请日：2023-01-16

    Applicant: Stryker European Operations Limited

    Inventor： Florian Herrmann

    IPC: A61B34/20 ,  G06T7/73

    CPC classification number: A61B34/20 ,  G06T7/73 ,  A61B2034/2057 ,  A61B2034/2065 ,  A61B2034/2048 ,  A61B2090/3983

    Abstract: A technique for determining a need for a re-registration of an optical patient tracker with medical image data of a patient is presented. A camera system is configured to generate camera image data for tracking the tracker. The camera system comprises an acceleration sensor configured to generate inertial data indicative of an acceleration of the camera system. A method implementation of the technique comprises the following steps performed by a processor: receiving image data from the camera system and analyzing the received image data for a positional change of the tracker indicative of at least one of a drift of the tracker and an impact on the tracker; receiving inertial data acquired by the acceleration sensor and analyzing the received inertial data, or data derived therefrom, with respect to at least one first predetermined condition indicative of an impact on the camera system; and generating, in case a positional change of the tracker indicative of at least one of a drift of the tracker and an impact on the tracker is identified based on the image data and the at least one first predetermined condition is not fulfilled, at least a re-registration signal.

    Field Generator Assembly And Method For Surgical Navigation
    5.
    发明申请
    Field Generator Assembly And Method For Surgical Navigation 有权

    公开(公告)号：US20210338338A1

    公开(公告)日：2021-11-04

    申请号：US17223707

    申请日：2021-04-06

    Applicant: Stryker European Operations Limited

    Inventor： Hans Schoepp ,  Florian Herrmann

    IPC: A61B34/20 ,  G01D5/14

    Abstract: A field generator assembly for surgical navigation is provided. The field generator assembly comprises a field generator configured to generate an electromagnetic field, an attachment member configured to attach the field generator to a body of a patient, at least one first arm comprising a first portion configured to be in contact with a surface of the body of the patient when the field generator is attached to the body, and a second portion movably attached relative to the field generator, and at least one sensor configured to measure a spatial relationship between the at least one arm and the field generator. Also provided is a method of obtaining a relative pose between a surface of the body and a field generator.

    Technique For Selecting A Machine-Trained Model For Determining An Implant-Related Parameter
    6.
    发明公开
    Technique For Selecting A Machine-Trained Model For Determining An Implant-Related Parameter 审中-公开

    公开(公告)号：US20240104727A1

    公开(公告)日：2024-03-28

    申请号：US18371002

    申请日：2023-09-21

    Applicant: Stryker European Operations Limited

    Inventor： Oliver Weede ,  Florian Herrmann

    IPC: G06T7/00

    CPC classification number: G06T7/0012 ,  G06T2207/20081

    Abstract: A computer-implemented technique for a user-specific selection of a machine-trained model for determining an implant-related parameter. A set of different machine-trained models is provided. Each model is indicative of a dedicated implant-related parameter for a dedicated patient anatomy. The method may include receiving first patient image data indicative of a patient anatomy in which an implant is to be placed, and applying at least one first model from the set of models on the first patient image data to determine an implant-related parameter. The determined implant-related parameter is suggested to a dedicated user, and feedback is received from the user on the suggested implant-related parameter. The user feedback includes one of a confirmation of the suggested implant-related parameter and an adaptation thereof. At least one second model from the set of models that is to be applied on second patient image data may be selected, based on the user feedback.

    Technique Of Generating Surgical Information From Intra-Operatively And Pre-Operatively Acquired Image Data
    10.
    发明申请
    Technique Of Generating Surgical Information From Intra-Operatively And Pre-Operatively Acquired Image Data 有权

    公开(公告)号：US20220398755A1

    公开(公告)日：2022-12-15

    申请号：US17837351

    申请日：2022-06-10

    Applicant: Stryker European Operations Limited

    Inventor： Florian Herrmann

    IPC: G06T7/33 ,  A61B90/00 ,  G16H30/40

    Abstract: A technique of generating surgical information from intra-operatively acquired image data of vertebrae and pre-operatively acquired image data of the vertebrae is presented. A method implementation includes obtaining first image segments each containing a different vertebra, and second image segments each containing a different vertebra. The first image segments have been derived by processing the pre-operatively acquired image data, and the second image segments have been derived by processing the inter-operatively acquired image data. The method includes identifying one of the second image segments and one of the first image segments that contain the same vertebra, and determining a transformation that registers the identified first image segment and the identified second image segment. The method includes generating surgical information based on the transformation and the identified first image segment.

Patent Agency Ranking