Samanta Bianchi Vearick

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A trachea is a tubular structure composed of smooth muscle that is reinforced with cartilage rings. Some diseases can cause sagging in smooth muscle and cartilaginous tissue. The end result is reduction (narrowing) of the trachea diameter. A solution to this problem is the use of tracheal stents, which are small tubular devices made of silicone. One is(More)
This article describes the development of a Nitinol tracheal stent (HCPA NiTi-stent) and its application in a feline animal model. Straight-annealed, bright-polished Nitinol wire (55.8%Ni-44.2%Ti) was weaved around a 40-mm-long metal fixture with 8-mm diameter. The prototypes were submitted to different times of shape-setting heat treatment (530 degrees C),(More)
OBJECTIVE To describe the development of a silicone stent and perform in vivo testing for biocompatibility/applicability in the normal canine trachea. METHODS Four different densities were tested in order to obtain the silicone prototypes. The pressure required for compression considering a contact area of 1 cm(2), and a 30% reduction in diameter was(More)
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