A5048253557- Soft Robotics and Applications
- Cerebrospinal fluid and hydrocephalus
- Fetal and Pediatric Neurological Disorders
- Micro and Nano Robotics
- Intraocular Surgery and Lenses
- Advanced Sensor and Energy Harvesting Materials
- Dental Radiography and Imaging
- Spinal Dysraphism and Malformations
- Dental Anxiety and Anesthesia Techniques
- Dental materials and restorations
- Assisted Reproductive Technology and Twin Pregnancy
- Dental Erosion and Treatment
- Modular Robots and Swarm Intelligence
- Prenatal Screening and Diagnostics
- Genetic and Kidney Cyst Diseases
- Autopsy Techniques and Outcomes
- Dielectric materials and actuators
- Dental Research and COVID-19
- Head and Neck Surgical Oncology
- Connexins and lens biology
- AI in cancer detection
- Polymer composites and self-healing
- Dental Health and Care Utilization
- Retinal and Macular Surgery
- Ophthalmology and Visual Impairment Studies
ETH Zurich
2016-2024
University of Bern
2014
Treating vascular diseases in the brain requires access to affected region inside body. This is usually accomplished through a minimally invasive technique that involves use of long, thin devices, such as wires and tubes, are manually maneuvered by clinician within bloodstream. By pushing, pulling, twisting, these devices navigated tortuous pathways blood vessels. The outcome procedure heavily relies on clinician’s skill device’s ability navigate target bloodstream, which often inhibited...
Abstract Variable stiffness catheters are typically composed of an encapsulated core. The core is usually a low melting point alloy (LMPA) or thermoplastic polymer (TP). In both cases, there need to encapsulate the with elastic material. This imposes limit volume variable (VS) material and limits miniaturization. paper proposes new approach that relies on use thermosetting materials. catheter (VSC) proposed in this work eliminates necessity for encapsulation layer made unique biocompatible...
Abstract Minimally invasive robotic surgery often requires functional tools that can change their compliance to adapt the environment and surgical needs. This paper proposes a submillimeter continuous variable stiffness catheter equipped with phase‐change alloy has high variation in its different states, allowing for rapid control. Variable is achieved through phase boundary due controlled radial temperature gradient. be safely navigated soft state rigidified required during operation apply...
Abstract Variable stiffness (VS) is an important feature that significantly enhances the dexterity of magnetic catheters used in minimally invasive surgeries. Existing with VS consist sensors, heaters, and tubular structures filled low melting point alloys, which have a large change ratio but are toxic to humans. In this paper, catheter described for surgery; based on novel variable thread (VST), made conductive shape memory polymer (CSMP). The CSMP nontoxic simultaneously serves as heater,...
The purpose of this study was to determine if storage for up 4 h in human saliva results a decrease erosive tooth wear ( ETW ) and an increase surface microhardness SMH enamel samples after attack with subsequent abrasion. Furthermore, we determined the impact individual salivary parameters on . Enamel were distributed into five groups: group 1 had neither erosion nor treatment; groups 2–5 treated erosion, then 2 placed humid chamber 3–5 incubated 30 min, h, respectively. After treatments,...
Abstract Endoscopes navigate within the human body to observe anatomical structures with minimal invasiveness. A major shortcoming of their use is narrow field‐of‐view during navigation in large, hollow regions. Mosaics endoscopic images can provide surgeons a map tool's environment. This would facilitate procedures, improve efficiency, and potentially generate better patient outcomes. The emergence magnetically steered endoscopes opens way safer procedures creates an opportunity robotic...
Spina bifida is a congenital defect that occurs on the vertebral spine of fetus. The most severe form causes exposure spinal cord and nerve has important repercussions life newborn child. Current prenatal operative procedures require laparotomy abdomen as well hysterotomy uterus, which can result in consequences risks for mother. Here, we propose robotically assisted endoscopic procedure based magnetically steerable catheters to treat spina defects minimally invasive way. be performed fully...
Twin‐to‐twin transfusion syndrome (TTTS) is a severe disorder that often leads to the death of monochorionic twin fetuses, if left untreated. Current prenatal interventions treat condition involve use rigid fetoscopes for targeted laser coagulation vascular anastomoses. These tools are limited in their area operation, making treatment challenging, especially cases with anterior placentation. Herein, robotic platform perform this task using remote magnetic navigation proposed. In contrast...
Background: Cataracts are the leading cause of blindness and treated surgically. Capsulotomy describes opening lens capsule during this surgery is most commonly performed by manual tearing, thermal cutting, or laser ablation. This work focuses on development a flexible instrument for high precision capsulotomy, whose motion controlled hybrid mechanical-magnetic actuation system. Methods: A with magnetic tip was directed along circular path The system’s control cutting behavior were tested ex...
Variable Stiffness Catheter In article number 2101290 by Quentin Boehler, Bradley J. Nelson, and co-workers, a magnetically controlled catheter that is able to continuously change its stiffness presented. Soft, magnetic tools are enhanced with the capability apply control forces during surgical intervention can significantly improve outcome of procedure. The capabilities demonstrated performing fully robotic surgery for challenging ophthalmic intervention. Image designed Adrián Bago González.
Abstract A major obstacle in applying machine learning for medical fields is the disparity between data distribution of training images and encountered clinics. This phenomenon can be explained by inconsistent acquisition techniques large variations across patient spectrum. The result poor translation trained models to clinic, which limits their implementation practice. Patient-specific networks could provide a potential solution. Although patient-specific approaches are usually infeasible...