Descripción del proyecto
Desarrollo de herramientas innovadoras para la cirugía mínimamente invasiva
Los procedimientos quirúrgicos mínimamente invasivos reducen el daño tisular, los requisitos de analgésicos posoperatorios y la pérdida de sangre, disminuyen el tiempo de hospitalización y tienen mejores resultados estéticos. Sus limitaciones incluyen una menor retroalimentación visual, háptica y táctil «in situ», lo que aumenta la posibilidad provocar daños tisulares accidentales. El objetivo del proyecto PALPABLE, financiado con fondos europeos, es desarrollar una nueva generación de herramientas para procedimientos quirúrgicos mínimamente invasivos, centrándose en una sonda de palpación táctil innovadora para identificar y visualizar anomalías tisulares. La sonda incorporará múltiples modalidades de detección y un efector final flexible accionado neumáticamente con sensores táctiles distribuidos. La variación de la intensidad óptica en el elemento sensor permitirá identificar variaciones en la rigidez tisular.
Objetivo
PALPABLE introduces a new generation of MIS (Minimally Imvasive Surgery) tools: a novel tactile sensing probe as a palpation tool for identification and visualization of tissue abnormalities. MIS has several advantages (reduced tissue damage, postoperative analgesic requirements & blood loss, decreased hospitalization time, better cosmetic results), but there is limited or none visual, haptic, and tactile feedback in-situ, along with issues of tool dexterity. These issues can lead to accidental tissue damage. The probe (diam. 5mm, length 15-20mm) incorporates multiple sensing modalities and a thin, flexible, pneumatically actuated end-effector (3DOF, 180deg) with distributed sensors for distributed tactile sensing. The probe consists of the photonic sensing elements and a sphere held at the end of a circular tunnel by a steady flow of air. The sphere is free to rotate in all directions and can move into the channel when pressed against the airflow. When rolling over tissue, the displacement depends on the tissue’s stiffness and is picked up by the optical fibre above it. Optical intensity variation in the sensing element is used to identify tissue stiffness variations. The principle of measurement used is extrinsic light intensity modulation provided through optical fibres. A non-planar photonics circuit (200μm waveguide, 8bit colour depth) for haptic sensor array is developed and interfaced with the probe; this circuit will be engraved on ultra-thin polymeric foil. The foil sensing elements are distributed around & along the probe for multiple sensor inputs for palpation (i.e. stiffness), distance and curvature that are then fused to provide the overall tissue situation. Using thin foils allows for ease of integration with the probe and a straightforward manufacturing process to enable low cost in large volumes. The end effector is made from disposable or sterilizable materials, both options will be explored for recyclability or reusability respectively.
Ámbito científico
- engineering and technologymechanical engineeringmanufacturing engineering
- engineering and technologymaterials engineeringcolors
- medical and health sciencesclinical medicinesurgery
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensors
- natural sciencesphysical sciencesopticsfibre optics
Palabras clave
Programa(s)
Convocatoria de propuestas
HORIZON-CL4-2022-DIGITAL-EMERGING-01
Consulte otros proyectos de esta convocatoriaRégimen de financiación
HORIZON-RIA - HORIZON Research and Innovation ActionsCoordinador
15232 Chalandri
Grecia