scholarly journals Design of a Multifunctional Forceps for Use in Endoscopic Surgery

2010 ◽  
Vol 4 (2) ◽  
Author(s):  
Andrew Rau ◽  
Mary Frecker ◽  
Abraham Mathew ◽  
Eric Pauli

This paper presents a 3.0 mm diameter endoscopic forceps design for use in minimally invasive surgical procedures, which require significant grasping and spreading forces. Models of the proposed design predict considerable improvements in the opening range (140%) and force application (87%) for both grasping and spreading when compared with currently used endoscopic forceps. Several of the tool’s design characteristics promote fail-safe malfunctions, including locking before catastrophic failure and the decreased likelihood in detached parts. Initial benchtop testing showed good agreement between prototype performance and model prediction. Frictional losses experienced during testing were found to depend on load orientation. A surgical prototype is currently being manufactured for ex vivo testing.

2011 ◽  
Vol 5 (4) ◽  
Author(s):  
Andrew C. Rau ◽  
Mary Frecker ◽  
Abraham Mathew ◽  
Eric Pauli

This paper presents a 3.0 mm diameter multifunctional endoscopic forceps design for use in minimally invasive flexible endoscopic surgical procedures. Multifunctional capabilities including grasping, spreading, and cauterizing tissue are demonstrated experimentally and compared to commercially available forceps. Models of the proposed design predict considerable improvements in opening range (140%) and force application (87%) for both grasping and spreading when compared to currently used endoscopic forceps. Several of the tool’s design characteristics promote fail-safe malfunctions, including locking before catastrophic failure and a decreased likelihood in detached parts. Initial benchtop testing shows good agreement between prototype performance and model prediction. Frictional losses experienced during testing were found to depend on load orientation.


2016 ◽  
Vol 1 (13) ◽  
pp. 169-176
Author(s):  
Lisa M. Evangelista ◽  
James L. Coyle

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.


1996 ◽  
Vol 10 (10) ◽  
pp. 1025-1028 ◽  
Author(s):  
W. P. Geis ◽  
H. C. Kim ◽  
P. C. McAfee ◽  
J. G. Kang ◽  
E. J. Brennan, Jr

2021 ◽  
Author(s):  
Rene I. Luna

Minimally invasive surgery has changed the landscape of women’s surgical healthcare. Conventional and robotic laparoscopy are the preferred approach for many major minimally invasive gynecological procedures. However, the philosophy of minimally invasive surgery has been pushed to reduce the size and minimize the number of ports placed. Many conventional minimally invasive surgical procedures use 3–5 ports through multiple small incisions. Laparoscopic single site surgery tries to perform on that philosophy but has its limitations. Enters robotic surgery already a major force in minimally invasive surgery and now sets to remove the limitations of single site surgery. However it requires proper understanding of the instruments and the techniques for successful robotic single site surgery. It starts with patient selection. Knowing the instruments needed and the proper set up of those instruments. Then knowing how to use the instruments in operating and suturing and closing. And finish with special considerations.


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