scholarly journals Hydraulic Robotic Surgical Tool Changing Manipulator

2017 ◽  
Vol 11 (1) ◽  
Author(s):  
Abolfazl Pourghodrat ◽  
Carl A. Nelson ◽  
Dmitry Oleynikov
Keyword(s):  
Surgical Technique ◽  
Endoscopic Surgery ◽  
Low Cost ◽  
Electric Motors ◽  
Natural Orifice ◽  
Robotic Technology ◽  
Surgical Tool ◽  
Different Types ◽  
Abdominal Operations ◽  
Robotic Tool

Natural orifice transluminal endoscopic surgery (NOTES) is a surgical technique to perform “scarless” abdominal operations. Robotic technology has been exploited to improve NOTES and circumvent its limitations. Lack of a multitasking platform is a major limitation. Manual tool exchange can be time consuming and may lead to complications such as bleeding. Previous multifunctional manipulator designs use electric motors. These designs are bulky, slow, and expensive. This paper presents design, prototyping, and testing of a hydraulic robotic tool changing manipulator. The manipulator is small, fast, low-cost, and capable of carrying four different types of laparoscopic instruments.

scholarly journals Transvaginal Natural Orifice Transluminal Endoscopic Surgery (Notes): Surgical Technique and Results

10.5772/16777 ◽  
2011 ◽  
Author(s):  
William Kondo ◽  
Anibal Wood ◽  
Alcides Jose Branco Filho ◽  
Rafael William ◽  
Monica Tessmann ◽  
...  
Keyword(s):  
Surgical Technique ◽  
Endoscopic Surgery ◽  
Natural Orifice

scholarly journals Modular Assembly Micro-Robots for Natural Orifice Transluminal Endoscopic Surgery

Robotics ◽  
2013 ◽  
pp. 1600-1612
Author(s):  
Apollon Zygomalas ◽  
Kostas Giokas ◽  
Dimitris Koutsouris
Keyword(s):  
Surgical Technique ◽  
Endoscopic Surgery ◽  
Abdominal Cavity ◽  
Minimally Invasive Techniques ◽  
Natural Orifice ◽  
Modular Assembly ◽  
Invasive Techniques ◽  
Miniature Robot ◽  
Surgical Operations ◽  
Natural Orifices

Surgical operations are progressively being performed using minimally invasive techniques. Natural Orifice Transluminal Endoscopic Surgery (NOTES) is a novel surgical technique that uses the natural orifices of the human body in order to approach the peritoneal cavity. There are two basic types of robotics for NOTES; the external robots that stay outside the patient but act inside the abdominal cavity, and the internal robots that stay and act in the abdomen. The internal robots could only be mini-robots. The development of modular assembling reconfigurable micro-robots is a revolutionary idea for the NOTES. Modular micro-robots consist of small subunits which could be assembled and construct a functional miniature robot. These surgical micro-robots may increase the possibility for true scarless tele-surgery. Although specific applications of intrabdominal surgical micro-robots are still in an early concept stage, the field is rapidly evolving. In the future, patients may be operated by specialized micro-robotic intrabdominal surgeons.

Glycans in scaffold design in tissue reconstruction

2021 ◽  
pp. 088391152199784
Author(s):  
Nipun Jain ◽  
Shashi Singh
Keyword(s):  
Cell Attachment ◽  
Low Cost ◽  
Growth Conditions ◽  
Downstream Signaling ◽  
Cell Carrier ◽  
Wide Range ◽  
Proliferation And Differentiation ◽  
Different Types ◽  
Tissue Reconstruction ◽  
A Cell

Development of an artificial tissue by tissue engineering is witnessed to be one of the long lasting clarified solutions for the damaged tissue function restoration. To accomplish this, a scaffold is designed as a cell carrier in which the extracellular matrix (ECM) performs a prominent task of controlling the inoculated cell’s destiny. ECM composition, topography and mechanical properties lead to different types of interactions between cells and ECM components that trigger an assortment of cellular reactions via diverse sensing mechanisms and downstream signaling pathways. The polysaccharides in the form of proteoglycans and glycoproteins yield better outcomes when included in the designed matrices. Glycosaminoglycan (GAG) chains present on proteoglycans show a wide range of operations such as sequestering of critical effector morphogens which encourage proficient nutrient contribution toward the growing stem cells for their development and endurance. In this review we discuss how the glycosylation aspects are of considerable importance in everyday housekeeping functions of a cell especially when placed in a controlled environment under ideal growth conditions. Hydrogels made from these GAG chains have been used extensively as a resorbable material that mimics the natural ECM functions for an efficient control over cell attachment, permeability, viability, proliferation, and differentiation processes. Also the incorporation of non-mammalian polysaccharides can elicit specific receptor responses which authorize the creation of numerous vigorous frameworks while prolonging the low cost and immunogenicity of the substance.

25-Gauge Catheter as a Surrogate to Anterior Chamber Maintainer in Trabeculectomy

2021 ◽  
pp. 155335062098218
Author(s):  
Alessandra A. Kusabara ◽  
Niro Kasahara
Keyword(s):  
Surgical Technique ◽  
Anterior Chamber ◽  
Distinctive Feature ◽  
Low Cost ◽  
Economic Environment ◽  
Intravenous Catheter ◽  
Flat Anterior Chamber ◽  
Limited Health

A flat anterior chamber (AC) is a distinctive feature in status post vitrectomy eyes during trabeculectomy. The use of AC maintainers is useful to help prevent this peroperative situation. We herein describe the surgical technique using a 25-gauge intravenous catheter as a surrogate to conventional AC maintainers. A potential advantage of this approach is the low cost in the current economic environment with limited health restraints.

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