Perspectives of using a microsurgical device made of titanium nickelide in complicated cataract surgery
Purpose. To examine the possibility of using a tool with variable shape geometry of the operational section of titanium nickelide for small incision surgery to remove complicated cataract.Material and methods. Cadaveric eyes of 7 patients with complicated cataract were used for the study. Nickel tit...
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Published in | Oftalʼmokhirurgii͡a︡ = Ophthalmosurgery no. 3; pp. 19 - 23 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English Russian |
Published |
Publishing house "Ophthalmology"
02.10.2020
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Subjects | |
Online Access | Get full text |
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Abstract | Purpose. To examine the possibility of using a tool with variable shape geometry of the operational section of titanium nickelide for small incision surgery to remove complicated cataract.Material and methods. Cadaveric eyes of 7 patients with complicated cataract were used for the study. Nickel titanium alloy was selected as the material for lens destruction, as it meets the medical requirements for design solutions of this class of surgical tools in cycles of their deformation in active and transportation conditions. The instrument operational mechanism is shaped as a loop of superelastic thin thread of titanium nickelide with a diameter of 60 microns with a porous surface coating, is used for mechanical fragmentation of the lens nucleus in complicated cataracts.Results. The size of tissue incision in the access zone is reduced. There is a decrease in capsular bag mobility at the stages of nucleus lens fragmentation. The risk of complications caused by a negative energy and other impacts on eye structures related to ultrasound fragmentation of lens nucleus in complicated cataracts is reduced.Conclusion. Use of such opportunities as material superelasticity, plasticity and strength, and its cutting properties when changing the shape of operational part of titanium nickelide micro-tool contributes to improving the intervention efficiency under complicated cataracts in small incision surgery. |
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AbstractList | Purpose. To examine the possibility of using a tool with variable shape geometry of the operational section of titanium nickelide for small incision surgery to remove complicated cataract.Material and methods. Cadaveric eyes of 7 patients with complicated cataract were used for the study. Nickel titanium alloy was selected as the material for lens destruction, as it meets the medical requirements for design solutions of this class of surgical tools in cycles of their deformation in active and transportation conditions. The instrument operational mechanism is shaped as a loop of superelastic thin thread of titanium nickelide with a diameter of 60 microns with a porous surface coating, is used for mechanical fragmentation of the lens nucleus in complicated cataracts.Results. The size of tissue incision in the access zone is reduced. There is a decrease in capsular bag mobility at the stages of nucleus lens fragmentation. The risk of complications caused by a negative energy and other impacts on eye structures related to ultrasound fragmentation of lens nucleus in complicated cataracts is reduced.Conclusion. Use of such opportunities as material superelasticity, plasticity and strength, and its cutting properties when changing the shape of operational part of titanium nickelide micro-tool contributes to improving the intervention efficiency under complicated cataracts in small incision surgery. |
Author | Anikeev, S.G. Steblyuk, A.N. Gunther, V.E. Gunther, S.V. Molokova, O.A. Monogenov, A.N. |
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CorporateAuthor | Fyodorov Eye Microsurgery Federal State Institution, Krasnodar Branch, Russian Federation Tyumen State Medical University, Russian Federation Research Institute of Medical Materials and Shape Memory Impalnts at Kuznetsov Siberian Physical Technical Institute, Tomsk State University, Russian Federation |
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Title | Perspectives of using a microsurgical device made of titanium nickelide in complicated cataract surgery |
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