BORGES FILHO, O. P.; http://lattes.cnpq.br/9195342650324199; BORGES FILHO, Odir Pereira.
Abstract:
The term biomaterial was defined at the Conference of the National Institute of
Health Consensus Development in 1982, as" any substance (other than drugs)
or combination of substances, synthetic or natural in origin, which can be used
for a period of time, completely or partially as part of a system that treats,
increase or replace any tissue, organ or function of the body."The metal source
are widely used in the biomedical field due to ease of processing and
presenting some mechanical properties similar to biological materials, having
for example titanium. Titanium is one of the few materials that naturally have the
ability to be implanted in the human body, because of its high strength, low
weight, excellent corrosion resistance and biocompatibility. In recent years, we
observed a notable increase in the number of surgeries with application of
surgical staples instead of sutures standards. Thus, this work aims to
characterize titanium surgical staples aiming to ensure that the information
provided by suppliers in line with reality. The XRD patterns of the staples GPX
and GPY obtained from XRD analysis are typical of titanium. In OM and SEM
was observed friezes on the inner surface of the clamps GPX and GPY, friezes
that are nonexistent in these clips GPZ. Also in the SEM can be observed
fractures in the region of all staples studied. EDS analysis confirmed the purity
of the staples GPX and GPY, and presenting material not informed by the
supplier. For DSC analysis proved the absence of materials having a melting
point lower than 500 ° C. It was concluded that the clamps GPX and GPY
identical in composition and morphology reported by the supplier and that the
pins in their GPZ elements present composition are not reported by the
supplier. It was observed that all of the clips have breaks in their structure,
which makes it necessary to study materials associated with titanium to
increase its bending resistance, preventing the material undergoes rupture in
the postoperative period.
