Nasal endoscope minimally invasive operation navigating system based on augmented reality technique

Abstract

The invention relates to a nasal endoscope minimally invasive operation navigating system based on an augmented reality technique, comprising an infrared tracking camera, a three-dimensional scanner, a three-dimensional stereoscopic display, which are respectively connected with a computer, and a nasal endoscope which is connected with the three-dimensional stereoscopic display. Patient encephalic organization and a three-dimensional model of blood vessel and face skin are rebuilt by the computer; then, a first transition matrix of a three-dimensional scanner coordinate system and an infrared tracking camera coordinate system is multiplied by a second transition matrix of a three-dimensional scanner coordinate system and a three-dimensional model coordinate system of the face skin, the obtained result is multiplied by a third real time data of the position and the posture of the nasal endoscope which is obtained by the infrared tracking camera, a three-dimensional model image which is corresponding to an image which is captured by the nasal endoscope is real time rendered through the computer by the obtained data, and the image is real time overlapped with the image which is captured by the nasal endoscope and is displayed on the three-dimensional stereoscopic display, thereby realizing the blending of true and false images.

Description

field of invention [0001] The patent of the present invention relates to a navigation system for nasal endoscopic minimally invasive surgery, especially a navigation system for nasal endoscopic minimally invasive surgery based on augmented reality technology. technical background [0002] Nasal cavity, nasal sinus inflammation, dacryocystitis are common and frequently-occurring diseases, and the incidence of nasal cavity, paranasal sinus and skull base lesions is also on the rise. The development of endoscopic minimally invasive sinus surgery technology has fundamentally changed the traditional nasal cavity and sinus surgery. function retention and restoration. The widespread development of nasal cavity and sinus surgery under endoscopy has greatly improved the cure rate of nasal polyps and chronic sinusitis. Partial resection of lateral skull base tumors, repair of cerebrospinal fluid rhinorrhea, and transnasal optic nerve decompression, etc., further reflect the advantag...

AI Technical Summary

Problems solved by technology

Difficulty in intraoperative positioning is one of the main problems for operators

Although the image navigation system can help the operator to locate, the existing navigation system is not intuitive, the registration is complicated, affects the accuracy, the price is expensive, and the application is not widely used.

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