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Nonmagnetic Rigid and Flexible Outer Sheath with Pneumatic Interlocking Mechanism for Minimally Invasive Surgical Approach [chapter]

Hiromasa Yamashita, Siyang Zuo, Ken Masamune, Hongen Liao, Takeyoshi Dohi
2009 Lecture Notes in Computer Science  
We developed a nonmagnetic rigid and flexible outer sheath with pneumatic interlocking mechanism using flexible toothed links and a wiredriven bending distal end.  ...  All components of flexible parts are made of MRI-compatible nonmagnetic plastics. We manufactured the device with 300-mm long, 16-mm outer diameter, 7-mm inner diameter and 90-mm bending distal end.  ...  In this study, we developed a rigid and flexible outer sheath with pneumatic locking mechanism using flexible toothed links and with wire-driven active-bending distal end for laparoscopic surgery.  ... 
doi:10.1007/978-3-642-04268-3_52 fatcat:xhykkhixt5cnhpinc5wcpzqttu

Nonmetallic Guide Sheath with Negative Pressure Shapelocking Mechanism for Minimally Invasive Image-Guided Surgery [chapter]

Siyang Zuo, Ken Masamune, Kenta Kuwana, Takeyoshi Dohi
2012 Computer Aided Surgery  
To address the access and stability problems in endoscopic surgery, we developed a device called rigid-flexible outer sheath.  ...  This means the outer sheath should be useful in surgery with MRI guidance.  ...  bend flexible and a rigid mode ha . ms and stability issues in endoscopic surgery, and succ developed a rigid-flexible outer sheath with a pneum nimally invasive surgery (Fig. 1) .  ... 
doi:10.1007/978-4-431-54094-6_1 dblp:conf/accas/ZuoMKD11 fatcat:ayfeqbmq4bbqphw4oocu5cn2ti

Nonmetallic Rigid–Flexible Outer Sheath with Pneumatic Shapelocking Mechanism and Double Curvature Structure [chapter]

Siyang Zuo, Ken Masamune, Kenta Kuwana, Morimasa Tomikawa, Satoshi Ieiri, Takeshi Ohdaira, Makoto Hashizume, Takeyoshi Dohi
2011 Lecture Notes in Computer Science  
To address the access and stability problems in SPA and NOTES, we developed a device called rigid-flexible outer sheath.  ...  This sheath can be switched between flexible and rigid modes by a novel pneumatic shapelocking mechanism, and it has a double curvature structure that enables it to flex in four directions at the distal  ...  Mechanism of Pneumatic Shapelocking on Rigid-Flexible Shaft With the mechanism described below, the outer sheath can alternate between flexible and rigid modes.  ... 
doi:10.1007/978-3-642-23623-5_22 fatcat:ovbg4jogrzdwhm2wzwy7egvwna

Developing Essential Rigid-Flexible Outer Sheath to Enable Novel Multi-piercing Surgery [chapter]

Siyang Zuo, Takeshi Ohdaira, Kenta Kuwana, Yoshihiro Nagao, Satoshi Ieiri, Makoto Hashizume, Takeyoshi Dohi, Ken Masamune
2012 Lecture Notes in Computer Science  
The shape of the flexible outer sheath can be selectively locked by a novel pneumatic shapelocking mechanism.  ...  We have developed a new generation device called rigid-flexible outer sheath with multi-piercing surgery (MPS) to solve the issues of tissue closure, triangulation, and platform stability in natural orifice  ...  (A) (B) Rigid-Flexible Shaft Mechanism The pneumatic shapelocking mechanism exchanging between a flexible and a rigid mode have been represented in [10] .  ... 
doi:10.1007/978-3-642-33415-3_4 fatcat:7gpkngkn5nhunaslzdpbqvl5py

Soft Robot-Assisted Minimally Invasive Surgery and Interventions: Advances and Outlook

Ka-Wai Kwok, Helge Wurdemann, Alberto Arezzo, Arianna Menciassi, Kaspar Althoefer
2022 Proceedings of the IEEE  
This article provides an in-depth overview of recent progress in soft robotics for surgery and outlines remaining challenges in the development of soft robotics technologies for in-body operation, such  ...  as materials selection, tunable stiffness, soft design paradigms, and control issues.  ...  Most importantly, by virtue of their soft nature, they are considered inherently safe for use in minimally invasive surgery (MIS).  ... 
doi:10.1109/jproc.2022.3167931 fatcat:mjxwkfoqa5g4lbwfxrpv4apwdu

Recent advances in laparoscopic surgery [chapter]

2009 Recent Advances in Surgery 32  
Minimally invasive surgery has led to a paradigm shift in surgical techniques over the past thirty years. Open surgical procedures are gradually being replaced with minimally invasive methods.  ...  We have collected valuable contributions from relevant surgeons who present their diagnostic and therapeutic experience using minimally invasive approaches.  ...  Acknowledgements We would like to thank Francisco Miguel Sánchez Margallo and his team for providing us with the opportunity to make a contribution to this chapter.  ... 
doi:10.1201/b13291-12 fatcat:wwvdtv56szbyvp2otzorbks6pu

Objective measurements of the penile angulation are significantly different than self-estimated magnitude among patients with penile curvature

Giovanni Liguori, Andrea Salonia, Giulio Garaffa, Giovanni Chiriacò, Nicola Pavan, Giorgio Cavallini, Carlo Trombetta
2018 International Brazilian Journal of Urology  
Dilator Removal The outer sheath was secured at tip end via an adjustable vice and the inner dilator (locking mechanism disengaged) was fixed to a motorized, continuous, digital force meter (Mark-10).  ...  of outer sheath; H) Taper length of outer sheath; I) Taper grade of outer sheath; J) Thickness of outer sheath; K) Leading edge outer sheath.  ...  as an ideal minimally invasive technique.  ... 
doi:10.1590/s1677-5538.ibju.2017.0418 pmid:29570261 pmcid:PMC5996804 fatcat:q2z7q5czcjggtap4nqzunz2yhe

CARS 2020—Computer Assisted Radiology and Surgery Proceedings of the 34th International Congress and Exhibition, Munich, Germany, June 23–27, 2020

2020 International Journal of Computer Assisted Radiology and Surgery  
The traditional platforms of CARS Congresses for the scholarly publication and communication process for the presentation of R&D ideas were congress centers or hotels, typically hosting 600-800 participants  ...  A hybrid (analogue and digital) CARS 2020 has therefore been envisaged to take place at the University Hospital in Munich, with a balanced combination of analogue/personal and digital presentations and  ...  Therefore, a master-slave robotic system for VI is necessary for minimization of the radiation exposure.  ... 
doi:10.1007/s11548-020-02171-6 pmid:32514840 fatcat:lyhdb2zfpjcqbf4mmbunddwroq

Wet Poster Session

2019 Biomedical Engineering  
These deep correlation features are generated through the use of gram-based correlation features and given to a neural network for learning the correlation between them.  ...  The method generates images that contain recognizable characteristics of a specific cell type, for example the average size and the ordered pattern, but lack in artifacts that occur randomly in the original  ...  Our results have shown the functional feasibility of our pneumatic-muscle-powered and fully MRI-compatible stepper motor designs.  ... 
doi:10.1515/bmt-2019-6023 fatcat:mxp5r64yufccjg7dwe4orqjssa

Scientific Presentation Abstracts 2009 American College of Veterinary Surgeons Veterinary Symposium October 8-10, Washington, DC

2009 Veterinary surgery  
Such a procedure maximizes the benefits of decreased morbidity and anesthetic time associated with minimally invasive surgery.  ...  Overall, the use of locking-loop pigtail catheters as nephrostomy tubes is safe, effective and well tolerated in veterinary patients and can be placed either minimally invasively or surgically.  ...  Two forms of transfixation pin casts (TPC) are in common usage in equine surgery; one with 2 larger threaded pins and one with 3-5 smaller smooth pins.  ... 
doi:10.1111/j.1532-950x.2009.00568.x fatcat:sp5uwvwrjbdnnezwnbbgzcob4y

Clinical translation of handheld optical coherence tomography: practical considerations and recent advancements

Guillermo L. Monroy, Jungeun Won
2017 Journal of Biomedical Optics  
OCT system developers continue to reduce form factor and cost, while improving imaging performance (speed, resolution, etc.) and flexibility for applicability in a broad range of fields, and nearly every  ...  , for clinical and research use.  ...  probes and the clinical imaging suite at the Beckman Institute for Advanced Science and Technology.  ... 
doi:10.1117/1.jbo.22.12.121715 pmid:29260539 pmcid:PMC5735247 fatcat:va26n3ck5zc4bd2cww4j6ffv7a

Abstracts of oral and poster presentations

1998 Skull Base  
We reviewed our experience in surgery for cranial base tumors and studied possible predictors of postoperative deficit.  ...  Brainstem and cranial nerve (CN) involvement is crucial in posterior fossa meningioma surgery.  ...  This minimally invasive endoscopic surgical technique to the clivus enabled patients' fast recovery with minimal discomfort and minimal morbidities.  ... 
pmid:17170999 pmcid:PMC1656599 fatcat:ipwoqw7yvbdr7l7pxhylgjchje

41st Annual Meeting, Association for European Paediatric Cardiology, 24–27 May, 2006; Basel Convention Centre

2006 Cardiology in the Young  
Once formed and locked in the septal defect, the device assumes a very flat profile.  ...  Due to the soft implantation technique and flexible device configuration, no conduction problems occurred.  ...  These devices necessitate the introduction of a guide-wire and a long sheath trough the fenestration into the pulmonary atrium.  ... 
doi:10.1017/s104795110600059x pmid:16709266 fatcat:gmyvzwu74fcrpns5oq4kcaa2vu

Coronavirus [chapter]

Adeel Abbasi, Francis DeRoos, José Artur Paiva, J.M. Pereira, Brian G. Harbrecht, Donald P. Levine, Patricia D. Brown, Lara Wijayasiri, Andrew Rhodes, Maurizio Cecconi, Jonathan R. Egan, Marino S. Festa (+88 others)
2012 Encyclopedia of Intensive Care Medicine  
Alexandre Mebazaa, Alan Cass, and Martin Gallagher for their useful advice in the development of this manuscript.  ...  Patients must be screened for MRI compatibility. Pacemakers, defibrillators, and ferrous implants are generally not compatible with MRI.  ...  Implanted device malfunction -Some devices are MRI compatible, such as some ventriculo-peritoneal shunts, but require programming after the scan is completed.  ... 
doi:10.1007/978-3-642-00418-6_3072 fatcat:tyu35o4c7bchzp2tvrkgomlaa4

Central Line Infection [chapter]

Adeel Abbasi, Francis DeRoos, José Artur Paiva, J.M. Pereira, Brian G. Harbrecht, Donald P. Levine, Patricia D. Brown, Lara Wijayasiri, Andrew Rhodes, Maurizio Cecconi, Jonathan R. Egan, Marino S. Festa (+88 others)
2012 Encyclopedia of Intensive Care Medicine  
Alexandre Mebazaa, Alan Cass, and Martin Gallagher for their useful advice in the development of this manuscript.  ...  Patients must be screened for MRI compatibility. Pacemakers, defibrillators, and ferrous implants are generally not compatible with MRI.  ...  Implanted device malfunction -Some devices are MRI compatible, such as some ventriculo-peritoneal shunts, but require programming after the scan is completed.  ... 
doi:10.1007/978-3-642-00418-6_1326 fatcat:7d7sg3mu5fhl3leje6x5pbr4iy
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