Bioingeniería
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Item Aprovechamiento de RCD en el proyecto urbanización Villapraga Palmira(Universidad Santiago de Cali, 2019) Pérez Tabares, Carlos Andrés; Reyes Arias, Tito ReinaldoThe dynamics of the construction sector lead to the generation of construction and demolition Waste (CDW) negatively affecting the environment subsoil, water sources and implies a significant increase in the consumption of natural resources. This model of unsustainable consumption is aggravated by the inadequate management of CDWs. In the Urbanization Villapraga, no use of CDWs was carried out, therefore it was necessary to generate the design and implementation of a plan for the proper use and management of CDWs to reduce the environmental impact of such construction and reduce production costs without affecting the quality of the product. Recovery and reprocessing processes took advantage of materials from CDWs, most of which were destined for the formation of base and granular subbase, which, when extended on the track, presented a uniform surface, without cracks, potholes, laminations or segregations generating a suitable structure for 6700 m2 of asphalt binder, demonstrating the economic and technical feasibility of using these materials.Item Calidad de la medición del peso corporal durante las primeras etapas del desarrollo infantil: una revisión(Universidad Santiago de Cali, 2020) Riascos Arboleda, Julián David; García Herrera, Felipe Augusto; Argüello, Erick JavierOne of the anthropometric variables that allow predicting possible abnormalities in the development of newborns is body weight. Just as a lower than expected value could increase the risk of the probability of dying during the first year of life, a high birth weight could also be a risk factor for developing obesity. In the case of neonates who are in intermediate therapy, weight is measured daily using a neonatal scale or a baby scale. Since the weight of a newborn is expressed in grams, the relative error can be considerable, which implies the need to ensure the quality of the results provided by these instruments. Based on this, a systematic review of the literature regarding the quality of body weight measurements in newborns was carried out. To this end, a literature search between 2007 and 2019 was performed on 6 databases: Bdigital, Iopscience, Mincit, Minsalud, Repositorio and Scielo. After removing duplicates and evaluating whether the study was really relevant, 19 documents were chosen for analysis. Of the total number of studies reviewed, it was found that Colombia does not currently have a quality assurance program for the measurements reported by baby weighing scales. This, in turn, could be attributed to insufficient national and international regulations for measurements in biomedical equipment; very expensive metrology processes for some regions; and personnel not capable or qualified to carry out metrological activities. Hence the need to carry out new studies of current regulations, both nationally and internationally in terms of quality assurance processes in the measurements of biomedical equipment for weighing newborns. This in order to promote the generation of new mechanisms that focus on improving the provision of health servicesItem Densificación de biomasa como alternativa de aprovechamiento y valorización de residuos agrícolas(Universidad Santiago de Cali, 2019) Bermúdez Torres, Azael; Zambrano Salgado, Yesid FabiánIn this work a pelletizing system was used to densify mixtures of agricultural or forest residues. The raw materials used were coconut fiber (mesocarp), rice husk and wood sawdust. The purpose of this study was to compare the physicochemical properties of processed pellets. The effect of pellet processing variables such as particle size and mixing ratios of biomass was analyzed, considering its effect on pellet quality (calorific value and physical characteristics). It was found that the three biomass are suitable as energy sources, however, the pellets of the mixture of rice husk and coconut fiber did not present a good compaction, consequently, they could present problems at the time of their elaboration, storage and transport.Item “Desarrollo de dispositivo para realizar terapia simultánea por medio de hipertermia, tens y vibración para el tratamiento del túnel carpiano”(Universidad Santiago de Cali, 2020) Trujillo Ospina, Edwin; Hoyos Torres, Uriel Edinson; Bermeo Varón, Leonardo AntonioCarpal tunnel syndrome is neuropathy that irritate the median and ulnar nerve. It can cause pain, tingling, numbness, and weakness in the hand and fingers. The syndrome is more common in women than in men with a ratio of approximately 3:1and affects people in the age range of 35 to 60. Irritation of one of the nerves at the base of the wrist is treated with aprotocol called ascending, which ranges from therapeutic to surgical treatments. Among the treatments are those usingsteroids or various types of medication that normally have short-term results, the surgery that always has secondary effectsand post-operative trauma that could even relapse into a total disability of the hand and those performed with hyperthermia,TENS and mobility exercises by devices, which have had good results independently and combining two of these therapies. Considering the good results that these last treatments have had in this work, a device is developed that provides therapyfor carpal tunnel syndrome employing hyperthermia, TENS and neuro-mobility techniques independently orsimultaneously, to avoid surgical treatment, which causes disability and in some cases loss of normal motor functions. Thedevice is tested on 29 (10-19) people with and without disabilities to know its acceptability and effectiveness. The results Trujillo, E., Hoyos, U. E., & Bermeo, L. A. [(2020)] indicate that the device effectively provides the treatment of the 3 combined therapies in a single device, adequatelyproviding the therapy with the acceptability of 89.7% at the time of use and 62.1% after using the device. The device will allow the specialists to execute the therapy in a complete way reducing the attention times.Item Desarrollo de un dispositivo biomecatrónico adaptable al miembro superior humano para ejercicios funcionales de acondicionamiento físico(Universidad Santiago de Cali, 2019) Tovar Sánchez, Javier David; Franco Vargas, Sergio Alejandro; Arcos Hurtado, Edgar FranciscoRecognizing the importance of technology in the different processes of scientific, economic and social research, and putting it at the service of man in favor of improving their health conditions, has been a constant throughout history. Today these advanced technologies are offered only in specialized places for such purposes, which limits users in time and space to make use of them, not allowing the integration of such technologies to their daily lives and facilitate their living conditions. Another relevant aspect is the high costs associated with these technologies, a factor that prevents people who do not have economic resources from accessing them. Taking into account these aspects, and in order to reach a larger population, we developed a biomechatronic device adaptable to the human upper limb with double functionality, the first is the prevention of diseases associated with sedentary lifestyle through the enhancement of functional exercises of physical conditioning, focusing mainly on strengthening and bodybuilding in the early stages after an injury, the second is rehabilitation for people with mobility difficulties in the upper limb, either by natural causes or accidental, providing in a single portable device the ability to prevent and rehabilitate diseases and / or injuries of the upper limb. The first is the ability to prevent and rehabilitate diseases and / or injuries of the upper limb. In the process of developing the device, stages of planning, generation and evaluation of concepts, detailed design, construction, tests and adjustments were carried out to finally arrive at the prototype that managed to satisfactorily supply the bodybuilding and rehabilitation phases, the latter being the main axis, given the technical specifications required for bodybuilding in active users.Item Diseño de un manual de calidad para la empresa ASIA SOLUTION S.A.S basado en la resolución 4002 de 2007 del INVIMA(Universidad Santiago de Cali, 2019) De la Cruz Velasco, Andrés Felipe; Escarria Obando, Carlos Mauricio; Arcos Hurtado, Edgar FranciscoASIA SOLUTION SAS is a company whose main activity is the import and commercialization of biomedical equipment mainly for aesthetic use, initially founded in the city of Bogotá in 2014. It is currently operating in the city of Cali, through an initial diagnosis it is possible to identify absence of information due to poor organization, undocumented procedures which has generated reports of non-compliance, return of products for guarantee due to bad storage, lack of knowledge, lack of traceability of processes, which has generated loss of credibility in customers Due to the fact that the company does not have a certified quality management system, this is how document design takes importance through engineering methodologies that allow the identification of its organizational processes, the standardization of activities, the implementation of management indicators and clear objectives with r concrete results that reduce the difficulty to implement a QMS based on Resolution 4002 of 2007 of INVIMA, which allows to mitigate not only the absence of informality in the organization but also in order to achieve certification of storage and conditioning capacity of the CCAA medical devices, minimum requirement for all importing and commercializing establishments of medical devices.Item Diseño y construcción de un dispositivo de medición de succión en neonatos(Universidad Santiago de Cali, 2019) García Arias, Lina Vanessa; Bermeo Varón, Leonardo AntonioThe sucking reflex is innate and must function properly in terms of its capacity and coordination with the other reflexes involved in the feeding process, avoiding metabolic, linguistic and neuronal complications, which if not attended to in time can lead to death of the newborn . In Latin America, the most methods used are qualitative and inaccurate, based on subjective evaluation scales such as the escalation of NOMAS (Scale of Neonatal Evaluation of the Oral Engine) and the one established by Virginia Apgar in 1953. In the present study, we describe a new wireless system for the quantitative and objective measurement of the sucking reflex in newborns that allows obtaining the results of different sucking patterns in real time. The measuring system consists of a resistive force sensor (RFP-602e). The sucking data is sent via Bluetooth to a portable computer, in which a program was developed in the MATLAB® programming environment to receive, display and store the sucking patterns. A total of ten term newborns were recruited from The Siloé siglo XXI Hospital, which is attached to the Ladera Health Network, in Santiago de Cali, Colombia. Results show that the proposed system is adequate to measure the sucking behavior of babies, even within a few hours of life, which could help doctors to detect in a timely manner the risk of delayed child development in the future.Item Elaboración de un protocolo para calibración de equipos de pesaje no automático y esfigmomanómetros bajo los lineamientos de la norma NTC/ISO-IEC 17025:2017(Universidad Santiago de Cali, 2019) Riascos Cuéllar, Leyder David; Argüello Prada, Erick JavierThe calibration of biomedical equipment classified as measuring instruments must be currently performed by accredited laboratories, as specified in Decree 1595 of 2015 that regulates legal metrology in Colombia. The goal is to ensure that the optimal operation of the technology and that the patient's safety is not compromised. Based on this, the present investigation aims to develop a protocol for calibration of biomedical equipment, specifically non-automatic weighing instruments as well as mechanical and automatic sphygmomanometers under the guidelines of the Colombian technical standard NTC / ISO-IEC 17025 General Requirements for the competence of the 2017 testing and calibration laboratories. To achieve this objective, it was necessary to review the literature guides SIM MWG7 / cg-01 / v.00 of 2009, OIML R16-1 and R16-2, which are the basis for the elaboration of the proposed protocol. In addition, the advisor of the National Accreditation Agency of Colombia provided training sessions - ONAC hired by the institution in the process of accreditation, where all the analyses were performed. These trainings focused on strengthening the competence of the personnel involved, such as basic statistics, measurement uncertainty, mass internship, pressure internship; which allowed them to acquire the theoretical and related technical bases in the elaboration of a protocol that can be adopted by any calibration laboratory.Item Energía alternativa producida por microorganismos, un desafío para la generación de energía eléctrica y remoción de la materia orgánica(Universidad Santiago de Cali, 2019) Manzano Correa, Daniel; Carvajal, Lida VivianAt the same time as the population rate grows, the demand for electric power in the planet also do it, in the actuality, the only power sources capable to support the energetical demand are got by burning of the fossil fuels, these sources generate a substantial negative environmental impact, for example atmospheric impact. The need for supply this demand must be focused on the technologies that help to the environmental impact positively, that is, named alternative energies. The appearance of renewable energies like a solar and Eolic energy, have in objective to minimize environmental impact and greenhouse effect, the MFC are a promising option in the future, well if these can be massive, that is, it must be capable to supply electrical energy to a community, because can be to remove the organic material in the generation of power supply. To explain the way of function, to sort out the conformation and composition of a microbial fuel cell, is the objective of this article.Item Estimación de parámetros en la terapia de hipertermia por radiofrecuencia para el tratamiento del cáncer(Universidad Santiago de Cali, 2019) Serna Maldonado, Rafael Daniel; López Pérez, Jorge Iván; Bermeo Varón, Leonardo AntonioRadiofrequency (RF) hyperthermia is a therapy that takes advantage of the penetration qualities of electromagnetic waves to induce heating in tissues; this therapy is combined with radiotherapy for cancer treatment and chemotherapy that increases to effectiveness of treatment. The mechanism of action of this therapy is the increase of temperature in the tumor, in order to achieve apoptosis of the cell that has an excessive growth and thus generate immediate cell death. This treatment, despite demonstrating its effectiveness, has many limitations such as the low penetrability of the wave, which suggests that the treatments are usually for superficial or shallow tumor tissues. In addition, the concentration of heating at a specific point is another major problem, since when it is induced it is not limited only to tumor tissue, but it affects healthy tissues and to this is added the fact that not all patients present with same physical characteristics in the tissues, which makes the therapy different in the treatment implementation. This paper deals with the estimates of the parameters in radiofrequency hyperthermia therapy, with simulated experimental data and numerical solution of the system, by means of the Gauss-Newton and Levenberg-Marquardt (LM) algorithms, to specify the treatment depending of patient. The results indicate that it is possible to estimate a parameter, obtaining excellent results with the LM optimization algorithm that allow to make a planning for therapy in a specified patient and least possible damage to normal and healthy tissue.Item Estimación de parámetros en la terapia por ultrasonido de alta intensidad para el tratamiento de cáncer(Universidad Santiago de Cali, 2019) De Los Ríos Cárdenas, Laura; Bermeo Varón, Leonardo AntonioHyperthermia using High Intensity Focused Ultrasound (HIFU) is an acoustic therapy used in clinical applications to destroy malignant tumors of bone, breast, brain, kidney, pancreas, prostate, rectum and testicle. This technique consists in reducing the temperature in the tumor or in the specific area, to achieve coagulative necrosis and immediate cell death. Although hyperthermia can cure cancer, it can also cause side effects and even damage healthy cells or tissues. Therefore, for having a successful treatment, it is important to monitor and observe what is the tissue behavior, as well as its changes, before, during and after the procedure Mathematical models are tools that can be useful to simulate an adequate therapy by differentiating characteristics that will depend on each individual. In this work, an estimation of parameters for a direct model with rectangular two-dimensional domain is presented, the estimation was made with numerical data and simulated experimental data, both apply the same model, but the experimental data with the largest number of mesh elements and a random additive measurement error. These results demonstrate that by identifying the appropriate parameters of each patient, it is possible to predict the thermal responses of the tissue to be treated and, based on them, to plan an adequate cancer treatment by inducing heat by HIFU.Item Evaluación de indicadores en la gestión de mantenimiento de equipos médicos en la Fundación Hospital San Pedro(Universidad Santiago de Cali, 2019) Erazo Benavides, Natalia Milena; Bermeo Varón, Leonardo AntonioThe management of maintenance of medical equipment in health care institutions is important, since it depends on the medical equipment have a good operation and an adequate useful life, to provide a good quality health service. The purpose of this management is to ensure the safe operation of the equipment and is considered a support tool for the institution's engineering and medical personnel, in processes such as: planning, maintenance, inventory control, providing a safe environment and minimizing outages of equipment; which allows evaluating their performance from different areas, such as technical, clinical and economic. In the technical area, functional aspects of the equipment are evaluated, in the clinical aspects related to the performance of the equipment and in the economic with maintenance costs. In addition, maintenance management of medical equipment play a major role in Hospital Technology Management, since this tool can identify possible failures that an equipment is close to have, changes required by the maintenance or engineering area, helping in aspects such as: efficiency, efficiency and productivity have a continuous improvement. This paper presents an analysis of the current state of the medical equipment of the San Pedro Foundation Hospital, which includes the inventory, the datasheet, the preventive maintenance schedule, corrective maintenance documentation and management indicators. In addition, an optimization is performed with the K-NN algorithm, which determines which personnel is most suitable to carry out a specific corrective maintenance, based on the failure history of the institution, seeking to optimize equipment attention times and the possibility of performing training updates for personnel in specific areas of maintenance.Item Evaluación de metales pesados en partículas totales en suspensión en los alrededores de la Universidad Santiago de Cali(Universidad Santiago de Cali, 2020) López Morales, Sharom Andrea; Reyes Arias, Tito ReinaldoAir pollution related to inhalable PM10 particles poses an environmental problem due to the possible effects on health and wellbeing in the population, which these pollutants can generate. Among the substances that are part of the components of PM10, heavy metals stand out; particles that alone can cause a variety of alterations on health and the environment. The uncertainty about the true levels of these metals in the atmosphere makes it necessary to evaluate their concentration at atmospheric level and identify if they comply with the regulations on air quality in force at the study site. In this research project, four heavy metals (Pb, Cd, Cu, Cr) were analyzed with a high probability of being presented in environmental samples collected from four points of the Santiago de Cali University. To achieve this, the samples were subject to acid digestion processes and analyzed using the atomic absorption spectrophotometry method, determining their concentration and comparing the results with current regulations. The results show compliance with the regulations for the permissible contamination limits related to the concentrations of two of the four metals selected for the Cu and Cr study. Cadmium and Lead on the other hand, fails to identify reliably, the values resulting from the analysis are too small to be adequately detected by the characterization method used for this investigation. However, the results are conclusive regarding the presence of these metals in the medium. The presence of chromium and copper in the environment is directly related to the physical characteristics of the study area, such as the high vehicular flow on nearby roads and to the meteorological behavior during the days of Sharom Andrea López Morales. [(2019)] collection. It is considered advisable that the city surveillance system presents disaggregated data for certain predominant metals in the air in order to identify problem foci within the daily monitoring of total suspended particles (PM10 and PM2.5).Item Evaluación del crecimiento y desarrollo vegetal del rábano a partir del aprovechamiento de los lodos en un sistema de tratamiento de agua residual(Universidad Santiago de Cali, 2024) Victoria Villalba, Hernán Felipe; Cárdenas Talero, José Luis; Silva Leal, Jorge AntonioIn recent years, population growth has significantly increased the demand for natural resources and the generation of wastewater. In this context, it is essential to integrate Wastewater Treatment Plants (WWTPs) into a circular economy. WWTPs produce reusable by-products such as gas, treated wastewater, and sludge. Stabilized sludge (biosolids) contains nutrients that can improve soil and substitute chemical fertilizers in agriculture. This study evaluates the suitability of secondary sludge and drying sludge from a WWTP with an extended aeration activated sludge system for use in radish cultivation. Pots of 0.7 L were used, and the treatments included a control group (soil and mineral fertilizer) and an experimental group with sludge applications at different rates, according to the nitrogen (N) and phosphorus (P) requirements for radish cultivation. The results showed that secondary sludge did not achieve optimal radish development compared to the controls. However, dehydrated sludge demonstrated beneficial effects, with significant increases in leaf area and plant biomass compared to the controls. Analysis of variance (ANOVA) and Tukey's test showed significant differences in the variables, highlighting dehydrated sludge at 2P dosage as the most effective. Dehydrated sludge significantly improved the growth and development of radishes, suggesting it as an effective and sustainable alternative, promoting sustainable agricultural practices and reducing dependence on chemical fertilizers. However, both secondary and dehydrated sludge present a risk due to pathogen content, underscoring the need to implement sanitization treatments to reduce this pathogen contentItem Evaluación del desempeño del filtro de olla cerámica EKOFIL® bajo dos concentraciones de plata coloidal(Universidad Santiago de Cali, 2020) Cuastumal Recald, Jorge Alexander; Méndez Posso, José Leonardo; Pérez Vidal, AndreaThe ceramic pot filter technology impregnated with colloidal silver is a viable alternative for the treatment of water for human consumption, characterized by its low cost, ease of handling and efficiency. In this research project, the performance of a Colombian-made filter model, impregnated with two concentrations of colloidal silver (500 ppm and 1000 ppm) was evaluated. PH, conductivity (µS/cm) and turbidity (UNT) were defined as follow-up variables and as a response variable total silver (mg/L). Synthetic water was used adjusting turbidity with kaolin (5.07 ± 0.51 UNT) and conductivity with NaCl (0.37 ± 0.5 µS/cm). The filters were evaluated under two operational conditions based on the pH of the synthetic water or tributary; in the first condition the pH was of the order of 8.60 ± 0.83 units and in the second of 5.36 ± 0.25 units. Additionally, in the first condition, synthetic water was inoculated with an average E.coli concentration of 2.1 x 103 CFU / 100 mL in order to evaluate the influence of the colloidal silver concentration on the microbiological removal efficiency. The results of the study showed that there is no significant statistical difference between 500 ppm and 1000 ppm filters in terms of the removal of E.coli in the effluent (gl=18, F=18.8.49, p=0.41) reaching average efficiencies 98%, in addition to evidencing that there is no health risk since the maximum concentration measured was 0.03 mg Ag/L in the 1000 ppm filter. The average turbidity of the effluent was 0.47 ± 0.22 UNT for the 500 ppm filter and 0.59 ± 0.25 UNT for the 1000 ppm filter, showing that there are no significant statistical differences in terms of turbidity (gl=43, F=47.49, p=0.29 ). It is concluded that increasing the concentration of silver in the filters does not influence the efficiency of microbiological removal and, on the contrary, it could unnecessarily increase the cost of the filtration system, being advisable to impregnate the ceramic pot with a concentration of 500 ppm.Item Evaluación del efecto de la plata coloidal sobre la calidad química del agua filtrada de dos modelos de filtros caseros(Universidad Santiago de Cali, 2019) Avilés Torres, Bryan Camilo; Narváez Garavito, María Alejandra; Silva Leal, Jorge AntonioThe purification of water and sanitation is a public health problem, where the technological gap in water treatment systems between the urban and rural population is evident, therefore, to minimize this problem, various treatment systems are implemented to supply water. Drinking water of communities with socio-economic limitations among them are the systems of home purification as the filter system by filtering bed of ceramic vessel. In this study we evaluated a ceramic pot filtration system, called Ekofil and Ekofil plus, which consists of a clay pot impregnated with colloidal silver and the Ekofil plus that has an activated carbon cartridge reinforcement impregnated with colloidal silver. The concentration of silver on the filtered effluent was evaluated in two models of ceramic pot filters used in the treatment of water for human consumption, for which the measurement of two types of synthetic water was carried out under controlled laboratory conditions for 10 weeks. The results obtained in both filtration models showed that the silver leaching was below the limit of 0.1 mg / L established by the EPA. According to the control variables pH, conductivity and turbidity, it was evident that the Ekofil filter was the one most in accord with what was established by Colombian regulations (Resolution 2115 of 2007) with a removal of 95.4%. Both systems of potabilization provide safe water in order to supply rural communities that do not have water treatment systems.Item Evaluación del efecto de la reutilización sobre dispositivos médicos de único uso en una institución de salud del Valle del Cauca(Universidad Santiago de Cali, 2019) Méndez Arana, María Isabel; Vargas Vasquez, John EdwarThe reuse of single-use medical devices (SUDs) is a common practice in our country's health institutions. Although this may lead to consequences, their extensive use is due to the costs of acquiring new devices, hazardous medical waste reduction and the positive impact on accessibility to health services. In Colombia there is no regulation that prohibits the reuse of SUDs; otherwise, the Colombian norm “resolution 2003 of 2014”, allows the reuse of a single-use medical device, as long as there is scientific evidence about its security. For this study, an analysis and characterization of five reused SUDs types in a Valle del Cauca health institution was performed: the inflatable anesthesia mask, the 23G vitrectomia handpiece, the combined constellation cassette and indigo cutters polishing and shearing, for which reuse procedures were identified and laboratory tests were applied for microbiological analysis, structural analysis and leak testing, to verify the functional characteristics of each type of medical device. As a result, it was shown that inflatable masks for anesthesia can be reused a maximum of five times, the handpiece vitrectomia 23G could be reused two and up to three more cycles, the constellation cassette can be reused up to one fifth cycle with the possibility of reuse in an additional cycle, diamond-encrusted milling cutters with a maximum of twice and for medical devices cutting cutters is left in a subsequent study where a metallographic and specialized hardness analysis will be performed by evidence of deformations found during structural analyses.Item Herramienta de análisis multicriterio: Un apoyo para la evaluación de tecnologías sanitarias en instituciones hospitalarias(Universidad Santiago de Cali, 2019) Montaño Saac, Leydi Tatiana; Bermeo Varón, Leonardo AntonioThe development of new technologies for health care, hospital and clinical support, has generated great impact on health and its costs, in that sense aspects such as clinical effectiveness and safety, economic impacts, the technical characteristics of these innovations, should be properly evaluated before being introduced into clinical practice. This article develops a tool for the Evaluation of Health Technologies in an institution in the city of Cali, using the Analytical Hierarchy Process (AHP) technique. Following this method, the domains and criteria based on the HH Core Model of the EuHTA were identified, which were used to build the hierarchy tree and the evaluation matrices, which allowed to obtain the priority autovectors. The evaluation of the domains and criteria was carried out by experts in charge of decision making in the institution. The verbal evaluations were interpreted numerically according to the Saaty scale. A series of matrices were constructed with each of the assessments of the decision makers, in order to obtain the priority vectors necessary to weigh the different alternatives of fetal monitoring equipment. The implementation of this tool contributed to the standardization of the evaluation processes in the institution and allowed decisions to be made more objectively, there is still the possibility of improving the tool in such a way that its use is easier by the institution's personnel.Item Implementación de un procedimiento de evaluación de obsolescencia en equipos biomédicos instalados en una institución prestadora de servicios de salud de nivel III en la ciudad de Santiago de Cali(Universidad Santiago de Cali, 2019) Ramos Sánchez, Evelyn Maritza; Aragón Cano, Vanessa; Vargas Vásquez, Jhon EdwarThe management of medical technology is a fundamental part of health institutions, which provides different tools to guarantee the operation and effectiveness of the technology. In this context, performance evaluations of biomedical equipment provide information on what is their physical-functional status that serves to verify that they are in optimal conditions and not a risk to the patient or health personnel. Therefore, it is proposed in the present investigation to develop an obsolescence evaluation procedure for a health service provider institution (IPS); For this purpose, a series of variables and criteria are determined to identify the current state of the technology within the institution and provide qualitative indicators, which provide the support to decide when it is time to make a replacement and / or device renewal caused by obsolescence. For which it was implemented in a specific area and as a product, accurate information was obtained about the medical devices evaluated for later decision making.Item Métodos de calibración para insufladores abdominales(Universidad Santiago de Cali, 2020) Hernández Mendoza, Jefferson; López Pacheco, Moisés; Bermeo Varón, Leonardo AntonioThe pneumoinflator or abdominal insufflator is a fundamental equipment in a large number of surgical specialties, mainly in laparoscopic surgeries. It is used for the introduction of CO2 into the abdominal cavity, known as pneumoperitoneum, to generate adequate working conditions for intervention. the gas supplied in terms of volume, flow and pressure, are essential to prevent adverse events such as hypercapnia, hypothermia and embolism. Given the importance of a pneumo-insufflator when used in surgery, the health care institutions should verify that their equipment is in optimal conditions of use, with periodic calibration and good management of preventive maintenance-oriented at risks. For pneumoinflator equipment, there is a wide and diverse variety of calibration methods because the equipment has two separately creditable variables such as flow and pressure, but there is no standardization of a guaranteed method or of the coupled variables for this equipment, which could lead to possible errors at the time of calibration. Thus, in this paper presents the most relevant calibration methods for abdominal insufflators. A standardized method is suggested to help reduce errors that may arise in the calibration process, the unification of calculations and a better estimate of uncertainty. Additionally, the principle of operation of the equipment, its characteristics, maintenance routine, internal composition and the complications that could occur during surgery are presented.