Análise, caracterização e perspectiva de desenvolvimento de grampos cirúrgicos.

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.