Main content blocks

Head of Group

Prof Ferdinando Rodriguez y Baena

B415C Bessemer Building

South Kensington Campus

 

About us

The MIM Lab develops robotic and mechatronics surgical systems for a variety of procedures.

Research lab info

What we do

The Mechatronics in Medicine Laboratory develops robotic and mechatronics surgical systems for a variety of procedures including neuro, cardiovascular, orthopaedic surgeries, and colonoscopies. Examples include bio-inspired catheters that can navigate along complex paths within the brain (such as EDEN2020), soft robots to explore endoluminal anatomies (such as the colon), and virtual reality solutions to support surgeons during knee replacement surgeries.

Why it is important?

...

How can it benefit patients?

......

Meet the team

Mr Zejian Cui

Mr Zejian Cui

Mr Zejian Cui
Research Postgraduate

Mr Zhaoyang Jacopo Hu

Mr Zhaoyang Jacopo Hu

Mr Zhaoyang Jacopo Hu
Research Postgraduate

Mr Spyridon Souipas

Mr Spyridon Souipas

Mr Spyridon Souipas
Casual - Other work

Ms Emilia Zari

Ms Emilia Zari

Ms Emilia Zari
Research Postgraduate

Citation

BibTex format

@article{Pinzi:2021:10.1109/TBME.2021.3060470,
author = {Pinzi, M and Watts, T and Secoli, R and Galvan, S and Baena, FRY},
doi = {10.1109/TBME.2021.3060470},
journal = {IEEE Transactions on Biomedical Engineering},
pages = {1459--1466},
title = {Path replanning for orientation-constrained needle steering},
url = {http://dx.doi.org/10.1109/TBME.2021.3060470},
volume = {68},
year = {2021}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Introduction: Needle-based neurosurgical procedures require high accuracy in catheter positioning to achieve high clinical efficacy. Significant challenges for achieving accurate targeting are (i) tissue deformation (ii) clinical obstacles along the insertion path (iii) catheter control. Objective: We propose a novel path-replanner able to generate an obstacle-free and curvature bounded three-dimensional (3D) path at each time step during insertion, accounting for a constrained target pose and intraoperative anatomical deformation. Additionally, our solution is sufficiently fast to be used in a closed-loop system: needle tip tracking via electromagnetic sensors is used by the path-replanner to automatically guide the programmable bevel-tip needle (PBN) while surgical constraints on sensitive structures avoidance are met. Methods: The generated path is achieved by combining the ”Bubble Bending” method for online path deformation and a 3D extension of a convex optimisation method for path smoothing. Results: Simulation results performed on a realistic dataset show that our replanning method can guide a PBN with bounded curvature to a predefined target pose with an average targeting error of 0.65 ± 0.46 mm in position and 3.25 ± 5.23 degrees in orientation under a deformable simulated environment. The proposed algorithm was also assessed in-vitro on a brain-like gelatin phantom, achieving a target error of 1.81 ± 0.51 mm in position and 5.9 ± 1.42 degrees in orientation. Conclusion: The presented work assessed the performance of a new online steerable needle path-planner able to avoid anatomical obstacles while optimizing surgical criteria. Significance: This method is particularly suited for surgical procedures demanding high accuracy on the desired goal pose under tissue deformations and real-world inaccuracies.
AU - Pinzi,M
AU - Watts,T
AU - Secoli,R
AU - Galvan,S
AU - Baena,FRY
DO - 10.1109/TBME.2021.3060470
EP - 1466
PY - 2021///
SN - 0018-9294
SP - 1459
TI - Path replanning for orientation-constrained needle steering
T2 - IEEE Transactions on Biomedical Engineering
UR - http://dx.doi.org/10.1109/TBME.2021.3060470
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000641967300002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://ieeexplore.ieee.org/document/9359507
UR - http://hdl.handle.net/10044/1/92442
VL - 68
ER -

Contact Us

General enquiries
hamlyn@imperial.ac.uk

Facility enquiries
hamlyn.facility@imperial.ac.uk


The Hamlyn Centre
Bessemer Building
South Kensington Campus
Imperial College
London, SW7 2AZ
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