scholarly journals Comparative Review of Endoscopic Devices Articulations Technologies Developed for Minimally Invasive Medical Procedures

2011 ◽  
Vol 8 (2) ◽  
pp. 151-171 ◽  
Author(s):  
Julien Catherine ◽  
Christine Rotinat-Libersa ◽  
Alain Micaelli
Keyword(s):  
Minimally Invasive ◽  
Mechanical Transmission ◽  
Medical Procedures ◽  
Comparative Performance ◽  
Minimally Invasive Surgical ◽  
Comparative Review ◽  
Surgical Application ◽  
Invasive Medical Procedures ◽  
Structural Architecture ◽  
Classification Tool

This study introduces a comparative performance analysis of the technological solutions that have been used to build distal active articulations for minimally invasive medical procedures. The aim is to provide a practical and concise database and classification tool for anyone that wants to learn more about the technologies involved in minimally invasive medical devices, or for any designer interested in further improving these devices. A review of the different articulations developed in this field is therefore performed and organized by both actuation technology and structural architecture. Details are presented concerning the mechanical structures as well as the actuation and the mechanical transmission technologies available. The solutions are evaluated keeping as a reference some chosen required performances and characteristics for minimally invasive surgical procedures. Finally, a quantified comparison chart of these devices is given regarding selected criteria of interest for minimally invasive surgical application.

High-definition true-colour television for use in minimally invasive medical procedures

1999 ◽  
Vol 7 (1) ◽  
pp. 75-84 ◽  
Author(s):  
A. von Orelli ◽  
Y. Lehareinger ◽  
P. Rol ◽  
P. Niederer ◽  
D. Doswald ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Medical Procedures ◽  
High Definition ◽  
Colour Television ◽  
Invasive Medical Procedures

Forced motion of a cylinder within a liquid-filled elastic tube – a model of minimally invasive medical procedures

2019 ◽  
Vol 881 ◽  
pp. 1048-1072
Author(s):  
Amit Vurgaft ◽  
Shai B. Elbaz ◽  
Amir D. Gat
Keyword(s):  
Minimally Invasive ◽  
Elastic Tube ◽  
Scaling Analysis ◽  
Elastic Model ◽  
Late Time ◽  
Medical Procedures ◽  
Axial Motion ◽  
Gauge Pressure ◽  
Uniform Solution ◽  
Invasive Medical Procedures

This work analyses the viscous flow and elastic deformation created by the forced axial motion of a rigid cylinder within an elastic liquid-filled tube. The examined configuration is relevant to various minimally invasive medical procedures in which slender devices are inserted into fluid-filled biological vessels, such as vascular interventions, interventional radiology, endoscopies and laparoscopies. By applying the lubrication approximation, thin shell elastic model, as well as scaling analysis and regular and singular asymptotic schemes, the problem is examined for small and large deformation limits (relative to the gap between the cylinder and the tube). At the limit of large deformations, forced insertion of the cylinder is shown to involve three distinct regimes and time scales: (i) initial shear dominant regime, (ii) intermediate regime of dominant fluidic pressure and a propagating viscous-peeling front, (iii) late-time quasi-steady flow regime of the fully peeled tube. A uniform solution for all regimes is presented for a suddenly applied constant force, showing initial deceleration and then acceleration of the inserted cylinder. For the case of forced extraction of the cylinder from the tube, the negative gauge pressure reduces the gap between the cylinder and the tube, increasing viscous resistance or creating friction due to contact of the tube and cylinder. Matched asymptotic schemes are used to calculate the dynamics of the near-contact and contact limits. We find that the cylinder exits the tube in a finite time for sufficiently small or large forces. However, for an intermediate range of forces, the radial contact creates a steady locking of the cylinder inside the tube.

Thunderclap Headache Caused by Minimally Invasive Medical Procedures: Description of 2 Cases

2007 ◽  
Vol 47 (2) ◽  
pp. 293-295 ◽  
Author(s):  
Flavio Devetag Chalaupka ◽  
Giorgio Caneve ◽  
Michela Mauri ◽  
Giuseppe Zaiotti
Keyword(s):  
Minimally Invasive ◽  
Thunderclap Headache ◽  
Medical Procedures ◽  
Invasive Medical Procedures

Considerations in Dysphagia Management Following Esophagectomy

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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