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s-CAM: An Untethered Insertable Laparoscopic Surgical Camera Robot with Non-Contact Actuation.

Ning Li^1,2, Hui Liu¹, Reza Yazdanpanah Abdolmalaki¹

¹Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USA.

Sensors (Basel, Switzerland)

|May 20, 2022

Summary

A new tetherless insertable surgical camera (s-CAM) robot eliminates wires for improved minimally invasive laparoscopic surgery. This robotic camera offers enhanced mobility and wireless control, advancing surgical visualization.

Keywords:

insertable laparoscopic camera medical robotics minimally invasive surgery robotic-assisted surgery

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Area of Science:

Robotics
Minimally Invasive Surgery
Medical Imaging

Background:

Tethering wires in current insertable robotic imaging devices hinder mobility and cause operational interference.
Existing prototypes often struggle with cumbersome wires, limiting their practical application in laparoscopic surgery.

Purpose of the Study:

To present a novel tetherless insertable surgical camera (s-CAM) robot for single-incision laparoscopic vision.
To overcome the limitations of wired systems by introducing non-contact transabdominal actuation and wireless communication.

Main Methods:

Development of a tetherless insertable surgical camera (s-CAM) robot.
Implementation of wireless video transmission and control communication using onboard power.
Utilized magnetic-based camera actuation for enhanced mobility and reduced interference.
Designed a custom Bluetooth low energy (BLE) application profile and a real-time operating system (RTOS) based framework.

Main Results:

Demonstrated technical feasibility of the tetherless s-CAM for laparoscopic camera applications.
Achieved effective imaging at low illumination (500 lx) and wireless vision up to 10 m.
Confirmed stable transabdominal BLE communication (> -52 dBm) and rapid RTOS response (< 1 ms).
The device operated for 50 minutes and exhibited extensive mobility (translation, tilting, panning).

Conclusions:

The s-CAM robot successfully addresses the limitations of tethered systems in laparoscopic surgery.
This wireless, highly mobile robotic camera represents a significant advancement in minimally invasive surgical visualization.
The developed technology shows potential for wireless control of insertable medical devices, enhancing surgical dexterity.