Navegando por Palavras-chave "Equipment Design"

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    Avaliação subjetiva da ponteira de dupla-porta para vitrectomia posterior
    (Universidade Federal de São Paulo (UNIFESP), 2021) Pires, Guilherme Machado Estevao [UNIFESP]; Lima, Luiz Henrique Soares Goncalves De [UNIFESP]; Universidade Federal de São Paulo
    Objective: To subjectively evaluate, through a questionnaire, the efficacy, and safety of the double-port posterior vitrectomy tip for removal of the central vitreous. Methods: The standard 23-gauge single-port tips of the Constellation Vision System and Stellaris PC were used for customization of the double-port tip. The second port, located on the outer cylinder at 180 degrees to the original port, was made by highprecision laser cutting equipment (Nd-Yag). The subjective evaluation of the efficacy and safety of the double-port tip for the removal (cutting and aspiration) of the central vitreous in cases of vitreous opacity and vitreous hemorrhage was performed by applying a questionnaire to six posterior segment surgeons. Results: 66.6% (N=4) of the surgeons considered the double-port tip faster than the standard tip to carry out the central posterior vitrectomy. All surgeons (100%) perceived that the double-port tip simultaneously performs the cutting and aspiration actions on both ports (original and custom). Five surgeons (83.3%) considered the use of the double-port tip to remove the central vitreous to be safe and not prone to intraoperative complications. All surgeons (100%) believed that the double-port tip may be an option over the standard single-port tip in cases of vitreous hemorrhage and vitreous opacities and three (50%) surgeon-assessors considered it possible to use the double-port tip also in cases of retinal detachment. Conclusion: According to the subjective evaluation performed, the double-ended tip may be an option of faster and safer surgical instruments for the removal of the central vitreous when used in posterior vitrectomy surgeries.
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    Desenvolvimento de uma balança microcontrolada de baixo custo para unidades de terapia intensiva neonatal
    (Universidade Federal de São Paulo (UNIFESP), 2020-07-24) Hua, Lin Hung [UNIFESP]; Martins, Luiz Eduardo Galvao [UNIFESP]; Universidade Federal de São Paulo
    Introduction: The evolution of the technology applied to the care of preterm babies in Neonatal Intensive Care Units was a great impact factor to reduce the mortality of these patients. Materials, medicine and equipment technologies made possible increase the survival rates. Diseases associated with prematurity and prolonged hospitalization, such as Respiratory Distress Syndrome and infections contribute to the risks of sequels. There are other risk factors that are inherent to daily care: hypothermia, oscillation of oxygenation and blood pressure, discomfort, pain and environmental conditions of the unit such as lighting and excessive noise. Organizing care to reduce premature patient handling, decreasing monitor alarm volume, establishing quiet times to respect sleep are environmental control actions that favor the clinical stability and development of preterm babies. One of the routine procedures in these units is weighing patients. The weighing method adopted in most Brazilian hospitals increases the risk of hypothermia, stress, clinical instability and fall. Objective: to develop a low-cost neonatal scale prototype to modify the weighing process. Methods: a prospective study, the prototype development was through a convention established between two institutions: ICT/Unifesp and Dr. José de Carvalho Florence Municipal Hospital. The prototype was mounted in the ICT/Unifesp laboratory and patient tests were performed at the Hospital. The prototype tests with patient were carry out at Hospital Municipal Dr. José de Carvalho Florence. The weighing tests with the prototype lasted for 14 days. Results: professionals did not have difficulties to use the prototype during the tests period, the equipment did not present any problems. The prototype allows weighing patients without removing them from the incubator. The developed prototype cost is 14.1% of the value of the similar weighing scale available on the Brazilian market. Conclusions: it is possible to change the weighing process with low cost equipment, make easier to spread the method, for less exposure to risk factors that impair the neurodevelopment in premature infants.