Performance Evaluation of a Sensorized Arthroscopic Grasper

2015 ◽  
Author(s):  
Behnaz Poursartip ◽  
Daniel Yurkewich ◽  
Marie-Eve LeBel ◽  
Rajni V. Patel ◽  
Ana Luisa Trejos ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Minimally Invasive ◽  
Learning Experience ◽  
Low Cost ◽  
Force Sensing ◽  
Surgical Simulators ◽  
Fiber Bragg Grating Sensors ◽  
Objective Performance ◽  
Advanced Robotics ◽  
Minimally Invasive Instruments

Force sensing minimally invasive instruments have gained increasing attention in recent years. Integrating these instruments within currently available surgical simulators can enhance the learning experience by measuring the forces applied by trainees and supplementing objective performance assessment. Recently, an arthroscopic grasper was designed and sensorized with Fiber Bragg Grating Sensors at Canadian Surgical Technologies and Advanced Robotics (CSTAR). Moreover, a custom low-cost (LC) interrogation system was developed to accompany the proposed sensorized tool. In this study, the custom LC interrogator was used and compared to the commercially-available Micron Optics sm130 (MO) interrogator. The hypothesis is that both of these systems can be used to measure forces within ±0.5 N as the acceptable margin for accuracy. Experimental results showed that the MO system meets the required accuracy for certain force directions. The LC system demonstrated 49% of the accuracy of the MO interrogator. The main advantage of the LC interrogator is its cost, which is 18% of the commercial interrogation system. For certain force directions, the performance was comparable to the defined criteria.

Low Cost Traınıng Models For Videothoracoscopic Surgical Training

2021 ◽  
Vol 17 ◽  
Author(s):  
Zeynep Bilgi ◽  
Çağatay Çetinkaya ◽  
Hasan Fevzi Batirel
Keyword(s):  
Minimally Invasive ◽  
Thoracic Surgery ◽  
Surgical Simulation ◽  
Learning Experience ◽  
Low Cost ◽  
Lung Nodule ◽  
Simulation Models ◽  
Artificial Lung ◽  
Case Volume ◽  
Training Models

Objective: We designed novel practical simulation models for VATS lung nodule palpation and vessel dissection, subsequently evaluated the performances of the residents in our thoracic surgery program to account for an appropriate level of difficulty, and grade the learning experience. Methods: Artificial lung nodules were formed by injecting sheep heart-lung blocks with either cyanoacrylate or construction-grade silicone diluted with synthetic thinner. An artificial lung and vessel environment was formed using a sponge, tube balloon placed inside a tunnel within the sponge and fixed with a flexible glue. Both models were placed in a standard laparoscopy training box; both conventional and minimally invasive surgery instruments were used as applicable per the attendee's discretion. Results: In the lung nodule simulation, among 4 residents (postgraduate year (PGY) 1, 3, 4, and 4) average time to palpating the first nodule was 57 seconds, the average time of whole lung palpation was 7,7 minutes. In the vascular dissection model, five residents (PGY 4, 3, 3, 3, 1) median distance dissected at the first attempt was 3,1 cm (1-4,7), and it was shorter 2,5 cm (2-3,2) in the second attempt. Median dissection duration was shorter in the second attempt (5 vs 3 minutes). All residents were able to complete the dissection of the balloon from the sponge within 9 attempts. Conclusion: Surgical simulation models can be created with minimal resources, allowing for enough difficulty to maintain engagement and progressive skill accomplishment through practice. As clinics shift case volume to minimally invasive procedures, resident exposure to open cases can become more scarce, so simulation training in thoracic surgery can not be perceived as a luxury. It has to be accessible even though the learning environment does not have the resources to invest in virtual reality sets or computerized simulators.

Fine Particle Mass Monitoring with Low-Cost Sensors: Corrections and Long-Term Performance Evaluation

2019 ◽  
Author(s):  
Carl Malings ◽  
Rebecca Tanzer ◽  
Aliaksei Hauryliuk ◽  
Provat K. Saha ◽  
Allen L. Robinson ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Fine Particle ◽  
Low Cost ◽  
Particle Mass ◽  
Long Term Performance ◽  
Term Performance

scholarly journals A low-cost wireless endoscope camera: a preliminary report

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
J. M. Lazarus ◽  
M. Ncube
Keyword(s):  
Minimally Invasive Surgery ◽  
Minimally Invasive ◽  
Video Transmission ◽  
Low Cost ◽  
Battery Life ◽  
Resource Constrained ◽  
High Definition ◽  
Industry Standard ◽  
Constrained Environments ◽  
The Cost

Abstract Background Technology currently used for surgical endoscopy was developed and is manufactured in high-income economies. The cost of this equipment makes technology transfer to resource constrained environments difficult. We aimed to design an affordable wireless endoscope to aid visualisation during rigid endoscopy and minimally invasive surgery (MIS). The initial prototype aimed to replicate a 4-mm lens used in rigid cystoscopy. Methods Focus was placed on using open-source resources to develop the wireless endoscope to significantly lower the cost and make the device accessible for resource-constrained settings. An off the shelf miniature single-board computer module was used because of its low cost (US$10) and its ability to handle high-definition (720p) video. Open-source Linux software made monitor mode (“hotspot”) wireless video transmission possible. A 1280 × 720 pixel high-definition tube camera was used to generate the video signal. Video is transmitted to a standard laptop computer for display. Bench testing included latency of wireless digital video transmission. Comparison to industry standard wired cameras was made including weight and cost. The battery life was also assessed. Results In comparison with industry standard cystoscope lens, wired camera, video processing unit and light source, the prototype costs substantially less. (US$ 230 vs 28 000). The prototype is light weight (184 g), has no cables tethering and has acceptable battery life (of over 2 h, using a 1200 mAh battery). The camera transmits video wirelessly in near real time with only imperceptible latency of < 200 ms. Image quality is high definition at 30 frames per second. Colour rendering is good, and white balancing is possible. Limitations include the lack of a zoom. Conclusion The novel wireless endoscope camera described here offers equivalent high-definition video at a markedly reduced cost to contemporary industry wired units and could contribute to making minimally invasive surgery possible in resource-constrained environments.

Low-Cost Single-Port (LoCoSP) Device for a Transcervical Approach in Minimally Invasive Transhiatal Esophagectomy

10.3791/62509 ◽  
2021 ◽  
Author(s):  
Flavio Roberto Takeda ◽  
Rubens Antonio Aissar Sallum ◽  
Felipe Alexandre Fernandes ◽  
Ivan Cecconello
Keyword(s):  
Minimally Invasive ◽  
Single Port ◽  
Low Cost ◽  
Transhiatal Esophagectomy ◽  
Transcervical Approach

Minimally Invasive Force Sensing for Tendon-driven Robots

10.5772/10311 ◽  
2010 ◽  
Author(s):  
Alberto Cavallo ◽  
Guiseppe De ◽  
Ciro Natale ◽  
Salvatore Pirozzi
Keyword(s):  
Minimally Invasive ◽  
Force Sensing

scholarly journals Performance Evaluation of Two Indoor Mapping Systems: Low-Cost UWB-Aided Photogrammetry and Backpack Laser Scanning

2018 ◽  
Vol 8 (3) ◽  
pp. 416 ◽  
Author(s):  
Andrea Masiero ◽  
Francesca Fissore ◽  
Alberto Guarnieri ◽  
Francesco Pirotti ◽  
Domenico Visintini ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Laser Scanning ◽  
Low Cost ◽  
Mapping Systems
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