Stent Designs and Implantation Techniques

2003 ◽  
pp. 53-60
Author(s):  
Mandeep Singh ◽  
Verghese Mathew
Keyword(s):  
Implantation Techniques

Analytical Electron Microscopy of Surface-Modified Ceramics

1985 ◽  
Vol 43 ◽  
pp. 276-279
Author(s):  
P. S. Sklad
Keyword(s):  
Electron Microscopy ◽  
Analytical Electron Microscopy ◽  
Theoretical Models ◽  
Ceramic Materials ◽  
Solute Concentration ◽  
Second Phase ◽  
Analytical Electron ◽  
Implantation Techniques ◽  
Lattice Damage ◽  
Surface Modified

Over the past several years, it has become increasingly evident that materials for proposed advanced energy systems will be required to operate at high temperatures and in aggressive environments. These constraints make structural ceramics attractive materials for these systems. However it is well known that the condition of the specimen surface of ceramic materials is often critical in controlling properties such as fracture toughness, oxidation resistance, and wear resistance. Ion implantation techniques offer the potential of overcoming some of the surface related limitations.While the effects of implantation on surface sensitive properties may be measured indpendently, it is important to understand the microstructural evolution leading to these changes. Analytical electron microscopy provides a useful tool for characterizing the microstructures produced in terms of solute concentration profiles, second phase formation, lattice damage, crystallinity of the implanted layer, and annealing behavior. Such analyses allow correlations to be made with theoretical models, property measurements, and results of complimentary techniques.

scholarly journals Surgical implantation techniques for electronic tags in fish

2010 ◽  
Vol 21 (1) ◽  
pp. 71-81 ◽  
Author(s):  
Glenn N. Wagner ◽  
Steven J. Cooke ◽  
Richard S. Brown ◽  
Katherine A. Deters
Keyword(s):  
Implantation Techniques ◽  
Surgical Implantation ◽  
Electronic Tags

All-Arthroscopic Autologous Matrix-Induced Chondrogenesis-Aided Repair of a Patellar Cartilage Defect Using Dry Arthroscopy and a Retraction System

2017 ◽  
Vol 30 (09) ◽  
pp. 925-929 ◽  
Author(s):  
Mariusz Puszkarz ◽  
Lidia Kosmalska ◽  
Martin Wiewiorski ◽  
Boguslaw Sadlik
Keyword(s):  
Magnetic Resonance ◽  
Cartilage Repair ◽  
Case Series ◽  
Collagen Matrix ◽  
International Knee Documentation Committee ◽  
Level Of Evidence ◽  
Patellar Cartilage ◽  
Radiological Data ◽  
Implantation Techniques

AbstractThe technique of all-arthroscopic autologous matrix-induced chondrogenesis (AMIC)-aided repair of patellar cartilage lesions using a retraction system and dry arthroscopy has been recently described. We report the first clinical and radiological data at a short-term follow-up. Twelve patients underwent AMIC-aided cartilage repair for a patellar lesion. All steps of the procedure were performed arthroscopically, which include the use of an intra-articularly placed retraction plate for distraction of the patellofemoral joint and evacuation of saline solution for collagen matrix insertion and fixation. Clinical assessment performed before surgery and at a mean follow-up time of 38 months (range: 24–70) included the following scores: Knee Injury and Osteoarthritis Outcome Score (KOOS), International Knee Documentation Committee (IKDC), and visual analog scale (VAS). Magnetic resonance imaging was performed at the follow-up examination, including the magnetic resonance observation of cartilage repair tissue (MOCART) score. The mean KOOS and IKDC scores increased significantly (p < 0.01) from 50.3 and 37.4 points preoperatively to 90.1 and 79.4 postoperatively. The VAS score decreased from 7.8 to 2.3 points. Mean MOCART score at follow-up was 58.3 points. Cartilage repair of patellar lesions aided by a retraction system in a dry arthroscopy setup is a promising approach. Further studies are needed to evaluate this procedure and compare it to existing matrix implantation techniques. The level of evidence for the study is 4 (case series).

Homograft Implantation Techniques in the Aortic Position: To Preserve or Replace the Aortic Root?

2006 ◽  
Vol 81 (5) ◽  
pp. 1578-1585 ◽  
Author(s):  
Thanos Athanasiou ◽  
Catherine Jones ◽  
Ruyun Jin ◽  
Gary L. Grunkemeier ◽  
Donald N. Ross
Keyword(s):  
Aortic Root ◽  
Implantation Techniques

Ion implantation techniques for non-electronic applications

Vacuum ◽  
2011 ◽  
Vol 85 (12) ◽  
pp. 1125-1129 ◽  
Author(s):  
J.A. García ◽  
R.J. Rodríguez
Keyword(s):  
Ion Implantation ◽  
Implantation Techniques

Comparison of implantation techniques using freestyle stentless porcine aortic valve

1995 ◽  
Vol 59 (4) ◽  
pp. 857-862 ◽  
Author(s):  
Neal D. Kon ◽  
Stephen Westaby ◽  
Naomali Amarasena ◽  
Ravi Pillai ◽  
A. Robert Cordell
Keyword(s):  
Aortic Valve ◽  
Implantation Techniques

scholarly journals Intracranial depth electrodes implantation in the era of image-guided surgery

2011 ◽  
Vol 69 (4) ◽  
pp. 693-698 ◽  
Author(s):  
Ricardo Silva Centeno ◽  
Elza Márcia Targas Yacubian ◽  
Luis Otávio Sales Ferreira Caboclo ◽  
Henrique Carrete Júnior ◽  
Sérgio Cavalheiro
Keyword(s):  
Imaging Techniques ◽  
Three Dimensional ◽  
Image Guided Surgery ◽  
Epileptogenic Zone ◽  
Stereotactic Techniques ◽  
Guided Surgery ◽  
Image Guided ◽  
Depth Electrodes ◽  
Implantation Techniques ◽  
Invasive Method

The advent of modern image-guided surgery has revolutionized depth electrode implantation techniques. Stereoelectroencephalography (SEEG), introduced by Talairach in the 1950s, is an invasive method for three-dimensional analysis on the epileptogenic zone based on the technique of intracranial implantation of depth electrodes. The aim of this article is to discuss the principles of SEEG and their evolution from the Talairach era to the image-guided surgery of today, along with future prospects. Although the general principles of SEEG have remained intact over the years, the implantation of depth electrodes, i.e. the surgical technique that enables this method, has undergone tremendous evolution over the last three decades, due the advent of modern imaging techniques, computer systems and new stereotactic techniques. The use of robotic systems, the constant evolution of imaging and computing techniques and the use of depth electrodes together with microdialysis probes will open up enormous prospects for applying depth electrodes and SEEG both for investigative use and for therapeutic use. Brain stimulation of deep targets and the construction of "smart" electrodes may, in the near future, increase the need to use this method.

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