Current Challenges

On a global level, 310 million major surgeries are performed yearly, with 20 million taking place in Europe. Over 2 million are laparoscopies, the most widespread minimally invasive surgery (MIS). Yet, current commercial surgical systems cannot grasp the sense of palpation, a key sensory operation in surgical procedures. They may be ideal for localised problems but cannot adequately perform if the operating area takes up a larger part of the patient’s body. Plus, these systems are not widely available due to their high cost, training requirements and safety concerns.

During minimally invasive surgeries (MIS), haptic, visual or tactile feedback is not always adequate. Combined with the lack of dexterity in surgical tools, operations could be time-consuming and with an increased possibility of accidental tissue damage, amongst other negative effects. So, by optimising the laparoscopic tools and processes, reduced invasiveness and operative time, as well as increased safety and functionality, could be achieved.

Therefore, a deeper dive into soft robotics could be the answer to increased safety, dexterity and potentially reduced costs. For the above reasons, there is growing interest in developing pneumatically actuated soft robots combined with multiple other technologies that can release surgeries from existing constraints.

  • offering surgeons better access to visualising tissues and identifying their properties during minimally invasive surgeries (MIS)
  • ensuring a shorter and improved postoperative period for the patient
  • exploiting the manufacturing method and elements of the probe that can help the project scale up and make leaps into fields like agriculture and the food industry.

Project Plan

Develop a thin, pneumatically actuated end-effector with proprioceptive sensing to…

– improve the freedom of motion and positioning accuracy of the probe.

– make the manufacturing of the tool cost-effective during the disposable/ sterilisable materials.

Develop a sensorised probe capable of distributed tactile sensing to…

– distinguish between healthy and cancerous tissue.

– measure the membranes deformation sensitivity.

– increase the sensor signal update rate.

– decrease probe manufacturing costs.

Develop a non-planar photonics circuit for haptic sensor array interrogation to…

– support different modes of waveguides

– strengthen further the low-cost manufacturing strategy of the overall tool.

Develop a distance-sensing module to…

– provide a visual map of the respective organ under examination.

Develop a stiffness profile reconstruction algorithm to…

– reconstruct the tissue stiffness profile

– register the curvature of the palpated tissue region.

– render the above palpation information available to the surgeon comprehensibly.