Accurate and efficient fiber optical shape sensor for MRI compatible 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.

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Development of a three-dimensional tactile sensor for minimally invasive instruments

International Journal of Applied Electromagnetics and Mechanics ◽

10.3233/jae-2010-1084 ◽

2010 ◽

Vol 34 (1-2) ◽

pp. 21-32

Author(s):

Hiroyuki Takanashi ◽

Mami Tanaka ◽

Yoshikatsu Tanahashi ◽

Seiji Chonan

Keyword(s):

Minimally Invasive ◽

Three Dimensional ◽

Tactile Sensor ◽

Minimally Invasive Instruments

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Flex-to-Rigid (F2R): A Generic Platform for the Fabrication and Assembly of Flexible Sensors for Minimally Invasive Instruments

IEEE Sensors Journal ◽

10.1109/jsen.2013.2252613 ◽

2013 ◽

Vol 13 (10) ◽

pp. 3873-3882 ◽

Cited By ~ 21

Author(s):

Benjamin Mimoun ◽

Vincent Henneken ◽

Arjen van der Horst ◽

Ronald Dekker

Keyword(s):

Minimally Invasive ◽

Flexible Sensors ◽

Minimally Invasive Instruments

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A Deployable Transseptal Brace for Stabilizing Cardiac Catheters

Journal of Mechanical Design ◽

10.1115/1.4039495 ◽

2018 ◽

Vol 140 (7) ◽

Author(s):

Leah P. Gaffney ◽

Paul M. Loschak ◽

Robert D. Howe

Keyword(s):

Mitral Valve ◽

Minimally Invasive ◽

Surgical Procedures ◽

Interatrial Septum ◽

Valve Repair ◽

Cardiac Catheters ◽

Folding Structure ◽

Cardiac Valve Disease ◽

Complex Surgical Procedures ◽

Minimally Invasive Instruments

A bracing device for stabilizing cardiac catheters inside the heart was developed to provide surgical-level dexterity to minimally invasive catheter-based procedures for cardiac valve disease. The brace was designed to have a folding structure, which lies flat along a catheter during navigation through vasculature and then unfolds into a rigid bracing configuration after deployment across the interatrial septum. The brace was designed to be easily deployable, provide bracing support for a transseptal catheter, and also be compliant enough to be delivered to the heart via tortuous vasculature. This aims to improve dexterity in catheter-based mitral valve repair and enable other complex surgical procedures to be done with minimally invasive instruments.

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Considerations in Dysphagia Management Following Esophagectomy

Perspectives of the ASHA Special Interest Groups ◽

10.1044/persp1.sig13.169 ◽

2016 ◽

Vol 1 (13) ◽

pp. 169-176

Author(s):

Lisa M. Evangelista ◽

James L. Coyle

Keyword(s):

Esophageal Cancer ◽

Minimally Invasive ◽

Minimally Invasive Surgical Procedures ◽

Esophageal Resection ◽

Minimally Invasive Surgical ◽

Operative Complications ◽

Swallowing Difficulties ◽

Epidemiological Impact ◽

Invasive Techniques ◽

Management Of Dysphagia

Esophageal cancer is the sixth leading cause of death from cancer worldwide. Esophageal resection is the mainstay treatment for cancers of the esophagus. While curative, surgical resection may result in swallowing difficulties that require intervention from speech-language pathologists (SLPs). Minimally invasive surgical procedures for esophageal resection have aimed to reduce morbidity and mortality associated with more invasive techniques. Both intra-operative and post-operative complications, regardless of the surgical approach, can result in dysphagia. This article will review the epidemiological impact of esophageal cancers, operative complications resulting in dysphagia, and clinical assessment and management of dysphagia pertinent to esophageal resection.

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