Aymeric Guy | École Polytechnique de Montréal (original) (raw)

Papers by Aymeric Guy

Research paper thumbnail of Systèmes et procédés de suivi, gestion, et traitement de l'asthme et de l'anaphylaxie

La presente invention concerne un module detecteur physiologique incluant au moins un detecteur p... more La presente invention concerne un module detecteur physiologique incluant au moins un detecteur portable qui est configure pour le port sur une partie du corps humain et pour la mesure d'au moins un signal biologique. Le module inclut en outre au moins un dispositif de commande couple de maniere a pouvoir communiquer au detecteur portable et configure pour recevoir le signal biologique du detecteur portable. Le dispositif de commande est en outre configure pour traiter le signal biologique en temps reel, extraire une ou plusieurs caracteristiques cliniques du signal biologique, et sur la base des caracteristiques cliniques, determiner la detection de l'anaphylaxie.

Research paper thumbnail of Design and Control of Lightweight Supernumerary Robotic Limbs for Sitting/Standing Assistance

Springer Proceedings in Advanced Robotics

We present a new, lightweight prototype of the Supernumerary Robotic Limbs (SRL), a wearable robo... more We present a new, lightweight prototype of the Supernumerary Robotic Limbs (SRL), a wearable robot that augments its user by providing two extra robotic legs. We then showcase the robot's assistive capabilities by developing and implementing a control strategy that supports the user during sitting and standing motions. The reduced mass and volume of the robot are enabled by innovative design choices including advanced materials, efficient joint structure, and high-performance pneumatic actuation. The assistive control strategy is tailored to each individual based on their motion preferences, and allows the SRL to support users without getting in the way of their movements. The proposed assistive strategy is implemented and validated in experiments with the physical SRL prototype.

Research paper thumbnail of Braces Designed Using CAD/CAM Combined or Not With Finite Element Modeling Lead to Effective Treatment and Quality of Life After 2 Years

Spine

STUDY DESIGN Single-center prospective randomized controlled trial. OBJECTIVE To assess the compu... more STUDY DESIGN Single-center prospective randomized controlled trial. OBJECTIVE To assess the computer-aided design/manufacturing (CAD/CAM) brace design approach, with and without added finite element modeling (FEM) simulations, after two years in terms of clinical outcomes, 3D correction, compliance and quality of life (QoL). SUMMARY OF BACKGROUND DATA Previous studies demonstrated that braces designed using a combination of CAD/CAM and FEM induced promising in-brace corrections, were lighter, thinner and covered less trunk surface. Yet, their long-term impact on treatment quality has not been evaluated. METHODS One-hundred-twenty AIS patients were recruited following SRS standardized criteria for brace treatment; 61 patients in the first subgroup (CAD) were given braces designed using CAD/CAM; 59 in the second subgroup (CAD-FEM) received braces additionally simulated and refined using a patient-specific FEM built from 3D reconstructions of the spine, rib cage and pelvis. Main thoracic (MT) and thoraco-lumbar/lumbar (TL/L) Cobb angles, sagittal curves, and apical rotations were compared at the initial visit and after two years. Patient compliance and QoL were tracked respectively by using embedded temperature sensors and SRS-22r questionnaires. RESULTS Forty-four patients with CAD-FEM braces and 50 with CAD braces completed the study. Average in-brace correction was 9° MT (8° CAD-FEM, 10° CAD, p = 0.054) and 12° TL/L (same for both subgroups, p = 0.91). Out-of-brace 2-year progression from initial deformity was < 4° for all 3D measurements. Sixty-six percent of all cases (30 CAD-FEM, 35 CAD) met the ≤5° curve progression criterion, 83% (38 CAD-FEM, 43 CAD) stayed below 45° and 6% (5 CAD-FEM, 1 CAD) underwent fusion surgery. 3D correction, compliance and QoL were not significantly different between both subgroups (p > 0.05). CONCLUSIONS After two years, patients with braces designed using CAD/CAM with/without FEM had satisfying clinical outcomes (compared to the BrAIST study), 3D corrections, compliance and QoL. A more comprehensive optimization of brace treatment remains to be accomplished. LEVEL OF EVIDENCE 2.

Research paper thumbnail of A Novel Pediatric Exoskeleton for Over-Ground Gait Training in Children with Cerebral Palsy

Archives of Physical Medicine and Rehabilitation

Research paper thumbnail of A Novel Pediatric Exoskeleton for Over-Ground Gait Training in Children with Cerebral Palsy

Archives of Physical Medicine and Rehabilitation

Research paper thumbnail of Systèmes et procédés de suivi, gestion, et traitement de l'asthme et de l'anaphylaxie

La presente invention concerne un module detecteur physiologique incluant au moins un detecteur p... more La presente invention concerne un module detecteur physiologique incluant au moins un detecteur portable qui est configure pour le port sur une partie du corps humain et pour la mesure d'au moins un signal biologique. Le module inclut en outre au moins un dispositif de commande couple de maniere a pouvoir communiquer au detecteur portable et configure pour recevoir le signal biologique du detecteur portable. Le dispositif de commande est en outre configure pour traiter le signal biologique en temps reel, extraire une ou plusieurs caracteristiques cliniques du signal biologique, et sur la base des caracteristiques cliniques, determiner la detection de l'anaphylaxie.

Research paper thumbnail of Design and Control of Lightweight Supernumerary Robotic Limbs for Sitting/Standing Assistance

Springer Proceedings in Advanced Robotics

We present a new, lightweight prototype of the Supernumerary Robotic Limbs (SRL), a wearable robo... more We present a new, lightweight prototype of the Supernumerary Robotic Limbs (SRL), a wearable robot that augments its user by providing two extra robotic legs. We then showcase the robot's assistive capabilities by developing and implementing a control strategy that supports the user during sitting and standing motions. The reduced mass and volume of the robot are enabled by innovative design choices including advanced materials, efficient joint structure, and high-performance pneumatic actuation. The assistive control strategy is tailored to each individual based on their motion preferences, and allows the SRL to support users without getting in the way of their movements. The proposed assistive strategy is implemented and validated in experiments with the physical SRL prototype.

Research paper thumbnail of Braces Designed Using CAD/CAM Combined or Not With Finite Element Modeling Lead to Effective Treatment and Quality of Life After 2 Years

Spine

STUDY DESIGN Single-center prospective randomized controlled trial. OBJECTIVE To assess the compu... more STUDY DESIGN Single-center prospective randomized controlled trial. OBJECTIVE To assess the computer-aided design/manufacturing (CAD/CAM) brace design approach, with and without added finite element modeling (FEM) simulations, after two years in terms of clinical outcomes, 3D correction, compliance and quality of life (QoL). SUMMARY OF BACKGROUND DATA Previous studies demonstrated that braces designed using a combination of CAD/CAM and FEM induced promising in-brace corrections, were lighter, thinner and covered less trunk surface. Yet, their long-term impact on treatment quality has not been evaluated. METHODS One-hundred-twenty AIS patients were recruited following SRS standardized criteria for brace treatment; 61 patients in the first subgroup (CAD) were given braces designed using CAD/CAM; 59 in the second subgroup (CAD-FEM) received braces additionally simulated and refined using a patient-specific FEM built from 3D reconstructions of the spine, rib cage and pelvis. Main thoracic (MT) and thoraco-lumbar/lumbar (TL/L) Cobb angles, sagittal curves, and apical rotations were compared at the initial visit and after two years. Patient compliance and QoL were tracked respectively by using embedded temperature sensors and SRS-22r questionnaires. RESULTS Forty-four patients with CAD-FEM braces and 50 with CAD braces completed the study. Average in-brace correction was 9° MT (8° CAD-FEM, 10° CAD, p = 0.054) and 12° TL/L (same for both subgroups, p = 0.91). Out-of-brace 2-year progression from initial deformity was < 4° for all 3D measurements. Sixty-six percent of all cases (30 CAD-FEM, 35 CAD) met the ≤5° curve progression criterion, 83% (38 CAD-FEM, 43 CAD) stayed below 45° and 6% (5 CAD-FEM, 1 CAD) underwent fusion surgery. 3D correction, compliance and QoL were not significantly different between both subgroups (p > 0.05). CONCLUSIONS After two years, patients with braces designed using CAD/CAM with/without FEM had satisfying clinical outcomes (compared to the BrAIST study), 3D corrections, compliance and QoL. A more comprehensive optimization of brace treatment remains to be accomplished. LEVEL OF EVIDENCE 2.

Research paper thumbnail of A Novel Pediatric Exoskeleton for Over-Ground Gait Training in Children with Cerebral Palsy

Archives of Physical Medicine and Rehabilitation

Research paper thumbnail of A Novel Pediatric Exoskeleton for Over-Ground Gait Training in Children with Cerebral Palsy

Archives of Physical Medicine and Rehabilitation