System for precision guidance of surgical procedures on a patient

Abstract

A system for precision guidance of surgical procedures on a patient is suggested, comprising: a three-dimensional digital representation of the pre-procedural geometry of a relevant part (2) of the patient (10), a three-dimensional digital representation of the intended post-procedural geometry of the relevant part of the patient including any implant (1) or other structures intended to be attached to the patient, a movable electrooptical camera (3) mounted in a known position and orientation relative to a surgeon (4) such as a head mount, a first carrier (5) comprising at least 3 targets (6) to be observed by the camera, said carrier to be mounted in a known position and orientation relative to the relevant part of the patient, a second carrier (7) comprising at least 3 targets to be observed by the camera, said carrier to be mounted in a known position and orientation relative to an implant or surgical instrument, a computer (8) for calculating the relative positions of the first and second carriers with at least 3 targets, and of the camera, based on observations from the camera, software, residing on the computer, calculating the relevant projection of a digital representation (11) of the patient to a display in order for the displayed projection to match with the surgeon's current physical view of the patient.

Description

technical field [0001] A system for precisely guiding a surgical procedure on a patient Background technique [0002] Although the industry agrees that computer-guided systems may both reduce risk and improve outcomes in many types of surgical procedures, such as total knee or total hip replacements, or spinal fusions. But the use of such calculator-guided systems remains low. [0003] For example, some systems are commercially available that can be used to guide a surgeon in the precise positioning of an implant, such as a hip implant, by simultaneously tracking multiple objects, such as the patient itself, the implant and other instruments. However, to be a practical solution, the guiding device used must not obstruct the work of the surgical team or obscure its view, nor force the surgical team to use unfamiliar working methods to support it. That is, the wound must be clearly visible from the guidance system. In addition, navigation targets, implants and other instrum...

AI Technical Summary

Problems solved by technology

[0017] The use of guiding systems also does not result in significantly prolonging the duration of the surgical procedure, either for economic reasons or to avoid increased infection risks

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