インプラント施術時における術中管理システムの研究

―第4報　Video Overlay Monitoring Systemの異機種モニタへの対応―

抄録

From the standpoint of ensuring the safety of patients, monitoring is essential for intraoperative control. During implant placement, the operator is often respnosible for monitoring the patient's systemic status. Since the operator concentrates his/her attention on the operation itself, he/she might neglect intraoperative control.
The Video Overly Monitoring System (here in after referred to as VOLMS), which we developed, obtains vital signs from a commercially available monitor and processes them, and then superimposes the vital signs onto intraoperative images from a video camera and records these data on a VTR. Although this system proved to be useful in securing intraoperative safety and recording detailed data, the implementation was limited to “BX-2” (a monitor model manufactured by Nippon Colin Co., Ltd.) and the system was not ready for other models.
Then, all the software for the VOLMS was reviewed. In principal, the receiving software was modified so that it would conform to the respective protocols of serial data output from different monitor models. In addition, some changes were made to enable each parameter to be extracted or selected from the data series. The VOLMS was prepared for any model with output terminals for serial data. In this paper, the implementation of the VOLMS for “BP-308” (Nippon Colin's model) using medical engineering techniques, and an example of application of this system to the implant placement was reported.