Ultrasonic location navigation and nail path verifying device for implantation of spinal surgery pedicle screws

Abstract

The invention discloses an ultrasonic location navigation and nail path verifying device for implantation of spinal surgery pedicle screws, which is composed of a path opening device (1), a probe (2), a locating gun (3), an ultrasound generating module (4), a data processing module (5), a display module (6) and a printer (7). The locating gun (3) consists of a rotary advancing rod (8), a wheel disc probe (9), a locating sleeve (10) and the like. The path opening device (1) consists of a path opening device head (17), a path opening device body (18) and a handle (19). The probe (2) consists of a probe head (22), a metal inner core (23) and a probe outer sleeve (24). The frequency of the wheel disc probe (9) is 0.2-5 MHz, the frequency of the probe head (22) is 0.2-20 MHz, the frequency of a low frequency path opening probe (20) is 0.2-5MHz, the frequency of a high frequency path opening probe (36) is 5-20 MHz, and the development mode is amplitude modulation type or brightness modulation type. The ultrasonic location navigation and nail path verifying device for the implantation of the spinal surgery pedicle screws ensures the safety in the implantation process and navigation location of orthopaedic surgeries and has large clinical application value.

Description

technical field [0001] The invention relates to medical instruments, in particular to an ultrasonic positioning navigation and screw track verification device for pedicle screw implantation in spinal surgery. Background technique [0002] Pedicle screw is the most commonly used internal fixation device in spinal surgery. The successful and safe implantation of the screw is the key to ensure the success of the operation. In order to ensure safe screw implantation, it is usually necessary to determine the screw entry point and pre-establish the screw entry channel before implanting the screw. At present, the screw entry point is usually determined according to the external anatomical landmarks and the experience of the doctor, and the accuracy is poor; the establishment of the screw channel is mostly based on the surgeon's feel and experience, and the screw channel is drilled tentatively according to the general direction of the pedicle. In this way, the direction of the scre...

AI Technical Summary

Problems solved by technology

Even if the commonly used medical ultrasound devices are directly applied to the surface of bone tissue, they cannot clearly detect the phenomenon of cancellous bone and cortical bone due to poor coupling and frequency, and there is no corresponding device for navigating orthopedic surgery.

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