Smart handheld device with flexible wrist and electrical bioimpedance sensor for tissue inspection

Abstract

With the evolving demands of surgical intervention, there is a strong need for smaller and functionally augmented instruments to improve surgical outcomes, operational convenience, and diagnostic safety. Owing to the narrow and complicated anatomy, the probe head of the medical instrument is required to possess both good maneuverability and compact size. In addition, the development of medical instrument is moving toward patient-specialized, of which the articulation positions can be customized to reach the target position. To fulfill these requirements, this study presents the design of a smart handheld device which equips with a low cost, easy control, disposable flexible wrist, and an electrical bioimpedance sensor for medical diagnosis. Prototype of the device is made and tested. The experimental results demonstrate that the proposed device can provide accurate manipulation and effective tissue detection, showing a great potential in various medical applications.

EIT probe based intraoperative tissue inspection for minimally invasive surgery

“…Equation (11) represents an ill-posed problem, which can be addressed using the Least Squares Gauss-Newton-Raphson method, utilizing equation ( 9) to define the gradient function. This procedure is further refined by iteratively updating the following set of equations:…”

“…In the past decades, the unique electrical properties of different tissues have been leveraged in a variety of biomedical applications [10][11][12]. The electrical property spectrum analysis has been successfully employed in distinguishing various tissue types, given their distinct cellular structures and compositions, as evidenced by the works of [13,14] for tissue identification, [15,16] for cancer detection, and [17,18] for health monitoring.…”

Electrical Control Equipment Patrol Inspection Method Based on High Quality Image Recognition Technology

“…With the rapid development of modern industry, electrical control equipment plays an increasingly important role in various fields [1][2][3]. However, it may malfunction after longtime operation, leading to decreased equipment performance or even shutdown [4][5][6][7][8][9]. In order to ensure the safe, stable, and efficient operation of electrical control equipment, the patrol inspection and maintenance are particularly important [10][11][12][13][14][15].…”