In this section

Human-Centred Automation, Robotics and Monitoring

We use perceptual methods, AI, and frugal robotics innovation to deliver transformative diagnostic and treatment solutions.

Head of Group

Dr George Mylonas

B415B Bessemer Building
South Kensington Campus

+44 (0)20 3312 5145

YouTube ⇒ HARMS Lab

What we do

The HARMS lab leverages perceptually enabled methodologies, artificial intelligence, and frugal innovation in robotics (such as soft surgical robots) to deliver transformative solutions for diagnosis and treatment. Our research is driven by both problem-solving and curiosity, aiming to build a comprehensive understanding of the actions, interactions, and reactions occurring in the operating room. We focus on using robotic technologies to facilitate procedures that are not yet widely adopted, particularly in endoluminal surgery, such as advanced treatments for gastrointestinal cancer.

Meet the team

Dr George Mylonas BEng, MSc, DIC, PhD
Senior Lecturer in Robotics and Technology in Cancer

Dr Adrian Rubio Solis
Research Associate in Sensing and Machine Learning

Citation

BibTex format

@article{Robertson:2023:10.1007/s00464-023-10240-5,
author = {Robertson, D and van, Duijn M and Arezzo, A and Mintz, Y and Technology, Committee of the EAES and Horeman-Franse, T},
doi = {10.1007/s00464-023-10240-5},
journal = {Surg Endosc},
pages = {7325--7335},
title = {The influence of prolonged instrument manipulation on gas leakage through trocars.},
url = {http://dx.doi.org/10.1007/s00464-023-10240-5},
volume = {37},
year = {2023}
}

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RIS format (EndNote, RefMan)

TY - JOUR
AB - BACKGROUND: During laparoscopic surgery, CO2 insufflation gas could leak from the intra-abdominal cavity into the operating theater. Medical staff could therefore be exposed to hazardous substances present in leaked gas. Although previous studies have shown that leakage through trocars is a contributing factor, trocar performance over longer periods remains unclear. This study investigates the influence of prolonged instrument manipulation on gas leakage through trocars. METHODS: Twenty-five trocars with diameters ranging from 10 to 15 mm were included in the study. An experimental model was developed to facilitate instrument manipulation in a trocar under loading. The trocar was mounted to a custom airtight container insufflated with CO2 to a pressure of 15 mmHg, similar to clinical practice. A linear stage was used for prolonged instrument manipulation. At the same time, a fixed load was applied radially to the trocar cannula to mimic the reaction force of the abdominal wall. Gas leakage was measured before, after, and during instrument manipulation. RESULTS: After instrument manipulation, leakage rates per trocar varied between 0.0 and 5.58 L/min. No large differences were found between leakage rates before and after prolonged manipulation in static and dynamic measurements. However, the prolonged instrument manipulation did cause visible damage to two trocars and revealed unintended leakage pathways in others that can be related to production flaws. CONCLUSION: Prolonged instrument manipulation did not increase gas leakage rates through trocars, despite damage to some individual trocars. Nevertheless, gas leakage through trocars occurs and is caused by different trocar-specific mechanisms and design issues.
AU - Robertson,D
AU - van,Duijn M
AU - Arezzo,A
AU - Mintz,Y
AU - Technology,Committee of the EAES
AU - Horeman-Franse,T
DO - 10.1007/s00464-023-10240-5
EP - 7335
PY - 2023///
SP - 7325
TI - The influence of prolonged instrument manipulation on gas leakage through trocars.
T2 - Surg Endosc
UR - http://dx.doi.org/10.1007/s00464-023-10240-5
UR - https://www.ncbi.nlm.nih.gov/pubmed/37442835
VL - 37
ER -