نتایج جستجو برای: silicone additive

تعداد نتایج: 76882  

Journal: :Rapid Prototyping Journal 2021

Purpose The purpose of this study is to use the Freeform Reversible Embedding Suspended Hydrogels (FRESH) additive manufacturing (AM) technique for a liver phantom which can mimic corresponding soft living tissue. One possible applications surgical planning. Design/methodology/approach A thermo-reversible Pluronic® F-127-based support bath used FRESH technique. To verify how three-dimensional (...

Journal: :بینا 0
علیرضا دهقانی ar dehghani اصفهان- بیمارستان فیض- مرکز تحقیقات چشم فرهاد فاضل f fazel اصفهان- بیمارستان فیض- مرکز تحقیقات چشم حشمت اله قنبری h ghanbari اصفهان- بیمارستان فیض- مرکز تحقیقات چشم فرزان کیان ارثی f kianersi اصفهان- بیمارستان فیض- مرکز تحقیقات چشم محمدرضا اخلاقی mr akhlaghi

purpose: to evaluate the efficacy of silicone oil injection after deep vitrectomy in infectious endophthalmitis regarding visual acuity. methods: this single-blind randomized clinical trial was performed on 50 cases of infectious endophthalmitis undergoing deep vitrectomy. patients were randomly assigned to two groups: in one group silicone oil was injected into the eye at the end of the operat...

Journal: :Archives of otolaryngology--head & neck surgery 2001
W Zager J Huang P McCue D Reiter

OBJECTIVE To determine whether prior silicone injection increases the risks associated with carbon dioxide laser resurfacing. DESIGN Laboratory determination of the effect of laser energy on liquid silicone; histologic evaluation of silicone-injected skin after lasing; and histologic demonstration of silicone deposits in all layers of dermis years after injection of silicone as filler fluid. ...

Journal: :Journal of cataract and refractive surgery 2001
S N Arthur Q Peng D J Apple M Escobar-Gomez R Bianchi S K Pandey L Werner

PURPOSE To evaluate surface properties of various intraocular lenses (IOLs), including a newly fabricated heparin-surface-modified (HSM) silicone IOL, with special reference to their efficiency in reducing potential silicone oil adherence to the IOL optics. SETTING Center for Research on Ocular Therapeutics and Biodevices, Department of Ophthalmology, Storm Eye Institute, Medical University o...

Journal: :Journal of cataract and refractive surgery 2007
Aylin Yaman A Osman Saatci Sulen Sarioğlu F Hakan Oner Ismet Durak

PURPOSE To determine the interaction of heavy silicone oil with various intraocular lens (IOL) materials and whether heavy silicone oil covers the silicone IOL optic as silicone oil does. SETTING Department of Ophthalmology, Dokuz Eylul University, Izmir, Turkey. METHODS The study group comprised 5 poly(methyl methacrylate) (PMMA) IOLs, 4 foldable silicone IOLs, 5 foldable hydrophilic acryl...

حسن مرزبان, , سیدعلی فخر طباطبایی, , عبدالرضا شیخ رضایی, , علیرضا خوشنویسان, , فهیمه اسدی آملی, , محمد بربرستانی, , مهدی نیکبخت, ,

There are many studies about epidural fibrosis after surgical manipulation of the spine. We have studied formation of the post laminectomy epidural fibrosis after application of two materials (Silicone and Teflon) in this report. This expriment is on two groups of rats. Two separated laminectomies were done in each rat, one serving as control while in the other laminectomy spaces Silicone was u...

Journal: :Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] 1999
B Berman F Flores

BACKGROUND The exact mechanisms of action responsible for the effectiveness of silicone gel dressings are unknown, although it has been proposed that static electricity generated by friction could be the reason for their anti-scarring effects. OBJECTIVE We compared the efficacy of a cushion of silicone filled with liquid silicone gel reported to induce greater negative static-electric charge ...

2007

● TABLE II Thin Layer ... Abstract TOP The cause of silicone gel implant aging and rupture is not known. Recent reports indicate the failure rate is higher than previously published, and implant aging and rupture may be due to progressive mechanical deterioration of the outer vulcanized silicone shell. It is known that lipids are absorbed by the hydrophobic silicone elastomer, and lipid infiltr...

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