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Field generator assembly and method for surgical navigation

A field generator and surgical navigation technology, applied in the field of surgical navigation, can solve problems such as low accuracy, reduced flexibility of registration points, registration accuracy, and changes

Pending Publication Date: 2021-10-29
STRYKER EUROPEAN OPERATIONS LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, depending on the surgeon's preference and patience, registration points may be located in different parts of the body, resulting in a registration with varying and often lower accuracy
Also, registration points may not be tracked on parts of the body that are outside the electromagnetic field detection range of the electromagnetic sensor, thereby reducing the flexibility of registration point placement and the accuracy of the obtained registration

Method used

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  • Field generator assembly and method for surgical navigation
  • Field generator assembly and method for surgical navigation
  • Field generator assembly and method for surgical navigation

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Embodiment Construction

[0040] In the following description, exemplary embodiments of a surgical navigation system and a surgical navigation method will be explained with reference to the accompanying drawings. The same reference numerals will be used to denote the same or similar structural features.

[0041] figure 1 An exemplary embodiment of the field generator assembly 100 is shown attached to the patient's body 200, particularly the patient's head. Field generator assembly 100 is configured for surgical navigation. The field generator assembly 100 includes a field generator 2 configured to generate an electromagnetic field (not shown) for electromagnetic navigation. Such electromagnetic fields may be beneficial for cranial surgery (eg, shunt placement with a stylus with electromagnetic sensors). The field generator 2 may be at least one of those attached to and surrounded by a housing 4 of the field generator assembly. Alternatively, the field generator 2 can form the housing 4 .

[0042] ...

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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 the field generator.

Description

technical field [0001] The present disclosure relates generally to surgical navigation. A field generator assembly for surgical navigation is provided. Also provided is a method of obtaining a relative pose between a surface of a patient's body and a field generator of a field generator assembly. Also provided are a computer program and a carrier containing the computer program. Background technique [0002] In surgical navigation, it is often desirable to display the pose (ie, at least one of position and orientation) of a surgical instrument or other medical component (eg, a bone plate of an implant) relative to patient image data. The patient image data may be computed tomography (CT) image data, magnetic resonance (MR) image data, or the like. [0003] Surgical navigation relies on a tracking system comprising a tracking unit for positioning the movable tracker relative to the tracking unit. The tracker can be attached to different components to be tracked by the tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B34/20
CPCA61B34/20A61B2034/2051A61B2034/2055A61B2034/2065A61B2034/2072A61B2090/502A61B5/6803A61B2034/2068A61B2034/2057A61B5/107A61B2034/102A61B2090/364G01D5/14
Inventor 汉斯·肖普弗洛里安·赫尔曼
Owner STRYKER EUROPEAN OPERATIONS LIMITED
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