Embodiments described herein address mobile devices with non-secure operating systems that do not provide a sufficient security framework. Systems may facilitate immobilizing or providing support for the cervical portion of the vertebral column of a patient. The connector secures the first rod in the mounting anchor and the connector is clampingly engaged between the engaging member and the first rod. A PDMS-based fixture is used during both the lapping process and the photo or UV-mold patterning of the ABS surface. The connector is engaged with the casing while the sealing element is protected so that the sealing element is fluidically isolated from any fluid flow through the connector. In addition the measurement system may include a calibration device for ensuring measurement accuracy and a register for recording measurements.