Computer-guided system for orienting a prosthetic acetabular cup in the acetabulum during total hip replacement surgery

摘要

A computer-guided system for orienting an insert during a surgical procedure, the computer-guided system comprising:
a surgical table for supporting a patient, the surgical table being capable of movement about three axes;a table inertial measurement unit for measuring movement of the surgical table;a patient inertial measurement unit for measuring movement of the patient;an insert inertial measurement unit for measuring movement of the insert; andcomputational means for determining the relative positioning of the patient and the insert based upon movement of the surgical table, movement of the patient, and movement of the insert.

主权项

1. A computer-guided system for orienting an insert in a joint of a patient during a surgical procedure, the computer-guided system comprising:
a surgical table for supporting a patient, the surgical table being capable of movement about three axes; an ultrasound device for identifying at least two anatomical landmarks in a joint of the patient, the ultrasound device configured to be mounted to one of the patient and the surgical table, with the ultrasound device configured to be directed at two anatomical landmarks in the joint of the patient; a first position sensor mounted to the ultrasound device for measuring movement of the ultrasound device; a second position sensor mounted to the insert for measuring movement of the insert in the joint of the patient; and computational means for determining the position of the insert relative to the joint of the patient based upon data obtained by the first position sensor and the second position sensor during movement of the surgical table, ultrasound device, and insert without pre-operative CT scanning.