Method and device for navigating and positioning an object relative to a patient
First Claim
1. A method for navigating and positioning an object relative to a patient during surgery in an operating room, characterized in that the position and orientation in the room of both the object and the patient or of a relevant area of the patient relative to a referencing framework is determined quasi continuously according to a sensing rate by means of three-dimensional inertial sensors, and that from this the current position and orientation of the object relative to the patient is determined, that this position and orientation are compared with a desired, predetermined position and orientation, and that there is an indication as to how the position of the object should be modified in order to be placed in the desired predetermined position and orientation.
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Accused Products
Abstract
The disclosure relates to a method and a device for navigating and positioning an object relative to a patient during surgery in an operating room. According to the disclosure, the position and orientation of the object and the patient in the room or a respective area of the patient relative to a reference system are determined quasi continuously in accordance with a scanning rate by means of a three-dimensional inertial sensor system, the momentary position and orientation of the object relative to the patient are determined therefrom, said position and orientation are compared to a desired predetermined position and orientation, and an indication is made as to how the position of the object has to be modified in order to reach the desired predetermined position and orientation.
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Citations
20 Claims
- 1. A method for navigating and positioning an object relative to a patient during surgery in an operating room, characterized in that the position and orientation in the room of both the object and the patient or of a relevant area of the patient relative to a referencing framework is determined quasi continuously according to a sensing rate by means of three-dimensional inertial sensors, and that from this the current position and orientation of the object relative to the patient is determined, that this position and orientation are compared with a desired, predetermined position and orientation, and that there is an indication as to how the position of the object should be modified in order to be placed in the desired predetermined position and orientation.
- 6. An apparatus for the implementation of a method for navigating and positioning an object relative to a patient during surgery, the apparatus comprising a first sensor device with acceleration and rotational speed sensors that is attachable to and again removable from a first predetermined area of the object, and a second sensor device with acceleration and rotational speed sensors that is attachable to and again removable from a patient, a memory, where the desired predetermined position and orientation of the object relative to the patient is stored, and means of calculation to determine the position and orientation from the measured sensor values, and means of calculation to compare the determined position and orientation from the predetermined position and orientation, and indication means to indicate how the position of the object should be modified in order to be placed in the desired predetermined position and orientation.
Specification