Medición del dolor durante el trabajo de parto: evaluación de la usabilidad de un nuevo dispositivo / Pain measurement during labor: usability evaluation of a new device

Objetivo: Evaluar la usabilidad de un dispositivo para medir el dolor durante el trabajo de parto a través de siete ítems: tamaño, textura, facilidad de uso, peso, resistencia, comodidad y seguridad. Método: Estudio descriptivo. Se solicitó a 60 pacientes usar el sensor manual durante el transcurso de seis contracciones uterinas (aproximadamente 10-20 minutos) y al día siguiente se aplicó una encuesta en la que las pacientes evaluaron la usabilidad del dispositivo en cuanto a textura, peso, resistencia, comodidad, facilidad de uso, tamaño del sensor, seguridad de uso, peso del sensor, resistencia y comodidad, mediante una escala de Likert de 1 a 7. La seguridad fue evaluada con una escala de 1 a 5. Resultados: Se realizaron gráficos de caja. Con respecto a la seguridad, un 86% de las usuarias marcaron 5 puntos en la escala, percibiendo el dispositivo como seguro. Conclusiones: El dispositivo fue percibido como seguro, liviano, fácil de usar y cómodo.

Objective: To evaluate the usability of a device to measure pain during labor through seven items: size, texture, ease of use, weight, resistance, comfort, and safety. Method: Longitudinal observational study. 60 patients were asked to use the manual sensor during the course of six uterine contractions (approximately 10-20 minutes) and the following day a survey was applied where the patients evaluated the usability of the device in terms of texture, weight, resistance, comfort, easiness of use, sensor size, safety of use, sensor weight, resistance and comfort through a Likert scale from 1 to 7. Safety was evaluated with a scale from 1 to 5. Results: They were schematized with a box plot. Regarding safety, 86% of the users scored 5 points on the scale, perceiving the device as safe. Conclusions: It can be seen that the device was perceived as safe, light, easy to use and comfortable.

Proposal of a new slit-lamp shield for ophthalmic examination and assessment of its effectiveness using computational simulations / Avaliação da eficácia e proposta de um novo protetor de lâmpada de fenda durante exame oftálmico por meio de simulações computacionais

ABSTRACT Purpose: This study aimed to use computational models for simulating the movement of respiratory droplets when assessing the efficacy of standard slit-lamp shield versus a new shield designed for increased clinician comfort as well as adequate protection. Methods: Simulations were performed using the commercial software Star-CCM+. Respiratory droplets were assumed to be 100% water in volume fraction with particle diameter distribution represented by a geometric mean of 74.4 (±1.5 standard deviation) μm over a 4-min duration. The total mass of respiratory droplets expelled from patients' mouths and droplet accumulation on the manikin were measured under the following three conditions: with no slit-lamp shield, using the standard slit-lamp shield, and using our new proposed shield. Results: The total accumulated water droplet mass (kilogram) and percentage of expelled mass accumulated on the shield under the three aforementioned conditions were as follows: 5.84e-10 kg (28% of the total weight of particle emitted that settled on the manikin), 9.14e-13 kg (0.045%), and 3.19e-13 (0.015%), respectively. The standard shield could shield off 99.83% of the particles that would otherwise be deposited on the manikin, which is comparable to 99.95% for the proposed design. Conclusion: Slit-lamp shields are effective infection control tools against respiratory droplets. The proposed shield showed comparable effectiveness compared with conventional slit-lamp shields, but with potentially enhanced ergonomics for ophthalmologists during slit-lamp examinations.

RESUMO Introdução: Os oftalmologistas têm alto risco de contrair a doença do Coronavírus-19 devido à proximidade com os pacientes durante os exames com lâmpada de fenda. Usamos um modelo de computação para avaliar a eficácia das proteções para lâmpadas de fenda e propusemos uma nova proteção ergonomicamente projetada. Métodos: As simulações foram realizadas no software comercial Star-CCM +. Os aerossóis de gotículas foram considerados 100% de água em fração de volume com distribuição de diâmetro de partícula representada por uma média geométrica de 74,4 ± 1,5 (desvio padrão) μm ao longo de uma duração de quatro minutos. A massa total de gotículas de água acumulada no manequim e a massa expelida pela boca do paciente foram medidas em três condições diferentes: 1) Sem protetor de lâmpada de fenda, 2) com protetor padrão, 3) Com o novo protetor proposto. Resultados: A massa total acumulada das gotas de água (kg) e a porcentagem da massa expelida acumulada no escudo para cada uma das respectivas condições foram; 1) 5,84e-10 kg (28% do peso total da partícula emitida que assentou no manequim), 2) 9,14e-13 kg (0,045%), 3,19e-13 (0,015%). O escudo padrão foi capaz de proteger 99,83% das partículas que, de outra forma, teriam se depositado no manequim, o que é semelhante a 99,95% para o projeto proposto. Conclusão: Protetores com lâmpada de fenda são ferramentas eficazes de controle de infecção contra gotículas respiratórias. O protetor proposto mostrou eficácia comparável em comparação com os protetores de lâmpada de fenda convencionais, mas potencialmente oferece uma melhor ergonomia para oftalmologistas durante o exame de lâmpada de fenda.

Design and application of a new device for measuring postpartum blood loss after vaginal delivery / 中国实用护理杂志

Objective:To explore the application effects of a new self-designed device for measuring postpartum blood loss in women with postpartum hemorrhage after vaginal delivery, so as to provide a basis for early identification and treatment of postpartum hemorrhage.Methods:The research was a quasi-experiment study. A total of 12 824 women who delivered vaginally in Women's Hospital of Nanjing Medical University from July 2021 to June 2022 were conveniently selected. Among them, the pregnant women enrolled from January to June 2022 were selected as the experimental group, and the pregnant women enrolled from July to December 2021 were included in the control group, with 6 412 cases in each group. The self-designed new postpartum blood loss measuring device was used to evaluate the blood loss in the experimental group, while the traditional blood collecting basin was taken in the control group.The differences between the two groups in the assessment error of 24 hours postpartum blood loss, postpartum blood loss at 2 hours and 24 hours, postpartum hemorrhage rate, severe postpartum hemorrhage rate and midwives′ satisfaction with the assessment of blood loss were compared.Results:The assessment error of 24 hours postpartum blood loss in the experimental group was 180.00 (80.00, 300.00) ml, which was lower than 192.00 (80.00, 310.00) ml in the control group, and the difference was statistically significant ( Z = - 2.04, P<0.05). The postpartum blood loss at 2 hours and 24 hours in the experimental group was 312.00 (290.00, 330.00) ml and 415.00 (385.00, 440.00) ml, respectively, which was higher than 310.00 (280.00, 330.00) ml and 407.00 (380.00, 435.00) ml in the control group, and the differences were statistically significant ( Z = - 9.86, - 5.42, both P<0.001). The rates of postpartum hemorrhage and severe postpartum hemorrhage in the experimental group were 6.50% (417/6 412) and 2.21% (142/6 412), respectively, higher than 4.71% (302/6 412) and 1.59% (102/6 412) in the control group, and the differences were statistically significant ( χ2 = 19.49, 6.69, both P<0.05). Midwives′ satisfaction score with the assessment of blood loss in the experimental group was (18.17 ± 1.02) points, higher than that in the control group (17.78 ± 1.17) points, and the difference was statistically significant ( t = 2.33, P<0.05). Conclusions:The use of a new device for measuring postpartum bleeding during vaginal delivery can reduce errors in evaluating postpartum blood loss within 24 hours, improve the detection rate of postpartum hemorrhage and severe postpartum hemorrhage, and midwives are satisfied with it.

Experiência inicial com a extensão de cateter-guia ExpressmanTM em um centro terciário de cardiologia de alto volume / Initial experience with the ExpressmanTM guide catheter extension in a high-volume tertiary cardiology center

Introdução: As extensões de cateter-guia fornecem maior suporte em intervenções coronárias percutâneas complexas. O ExpressmanTM é uma nova extensão de cateter-guia, e nosso objetivo foi avaliar o impacto de seu uso no sucesso do procedimento e nas complicações ocorridas em um centro de referência de alto volume. Métodos: Analisamos os dados de todos os procedimentos consecutivos em que foi usada uma extensão de cateter-guia ExpressmanTM. A decisão de usar uma extensão de cateter-guia ficou a critério do operador. O sucesso do dispositivo foi definido como o posicionamento bem-sucedido da extensão de cateter-guia dentro do vaso coronário, e o sucesso do procedimento foi definido como <20% de estenose residual e fluxo TIMI 3, sem perda significativa de ramos laterais. Eventos adversos cardíacos e cerebrovasculares maiores foram definidos como a combinação morte por todas as causas, infarto do miocárdio, revascularização do vaso-alvo e acidente vascular cerebral. Resultados: Foram incluídos 34 procedimentos entre abril de 2022 e janeiro de 2023. A maioria dos pacientes era do sexo masculino (59%), e a média de idade foi 66,5 anos. O uso da extensão de cateter-guia não foi planejado antes do procedimento em 17 procedimentos (50%). Os motivos mais comuns para o uso da extensão de cateter-guia foram angulação ou tortuosidade do vaso-alvo e posição desfavorável do óstio coronário. O sucesso do dispositivo foi obtido em 88% e o da revascularização, em 91%. Houve três oclusões de ramo lateral. Durante o acompanhamento clínico intra-hospitalar, não ocorreram sangramento e nem eventos adversos cardíacos e cerebrovasculares maiores. Conclusão: O sucesso do dispositivo e do procedimento foi alto, e a taxa de complicações foi baixa. O uso da extensão de cateter-guia como técnica de resgate em anatomias complexas permitiu o sucesso do procedimento na maioria dos pacientes que, de outro modo, não poderiam ser tratados.

Background: Guide catheter extensions provide increased support in complex percutaneous coronary interventions. The ExpressmanTM is a novel guide catheter extension and the objective was to assess the impact of its use on procedural success and complications in a high-volume reference center. Methods: We analyzed data from all consecutive procedures in which the ExpressmanTM guide catheter extension was used. The decision to use a guide catheter extension was at operator's discretion. Device success was defined as the successful positioning of the guide catheter extension in the coronary vessel and procedural success was defined as <20% residual stenosis and TIMI 3 flow, with no loss of significant side branches. Major adverse cardiac and cerebrovascular events were defined as the composite of all-cause death, myocardial infarction, target vessel revascularization and stroke. Results: From April 2022 to January 2023, 34 procedures were included. The majority of the patients were male (59%) and the mean age was 66.5 years. Guide catheter extension use was not planned pre-procedure in 17 procedures (50%). The most common reasons for guide catheter extension use were target vessel angulation or tortuosity and unfavorable coronary ostium position. Device success was obtained in 88% and revascularization success in 91%. There were three side branch occlusions. During in-hospital clinical follow-up, no major adverse cardiac and cerebrovascular events or major bleeding occurred. Conclusion: The device success and procedural success were high and the rate of complications was low. Guide catheter extension use as bailout technique in complex anatomies allowed procedural success in the vast majority of otherwise untreatable patients.

Development of a constant temperature disinfection device and evaluation of its clinical application effect / 中国实用护理杂志

Objective:To develop a constant temperature disinfection device and evaluate its clinical effect in perineal disinfection after delivery.Methods:A total of 300 cases of puerpera who met the inclusion and exclusion criteria were selected from Heping Hospital Affiliated to Changzhi Medical College from November to December 2020. The study was designed as a randomized control study. Subjects were randomly divided by random digit table into the control group and the experimental group of 150 cases respectively. The former used conventional methods for perineal disinfection after delivery. The latter performed perineal disinfection assisted by a thermostatic disinfection device. The temperature comfort of perineal disinfection and the perineal wound healing of perineal tear or lateral incision were compared between two groups.Results:The score of temperature comfort feeling of puerpera in the control group and the experimental group was 3 (1.5) and 5 (0), respectively. The maternal temperature comfort feeling score in the experimental group was higher, and the difference between the two groups was statistically significant ( Z=-13.78, P<0.05). There was no grade C healing of perineal wounds in the two groups. The composition ratios of grade A and grade B healing of perineal wounds in the control group were 89.61% (69/77) and 10.39% (8/77), and those in the experimental group were 93.75% (90/96) and 6.25% (6/96). The healing of perineal wound in the latter group was better, but the difference between the two groups was not statistically significant ( Z=0.99, P>0.05). Conclusions:The constant temperature disinfection device meets the clinical nursing needs, enhances the comfort experience of puerpera, and has certain effect on promoting the healing of perineal wound after delivery.

Application of individual head-rest combined with thermoplastic fixation mask in position fixation for irradiation with helical tomotherapy for head and neck tumors / 中国基层医药

Objective:To compare the positioning errors of individual head-rest combined with thermoplastic fixation mask versus thermoplastic fixation mask alone in patients with head and neck tumors. Methods:Twenty-eight patients who received irradiation with helical tomotherapy in Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital) between October 2019 and April 2020 were included in this study. They were randomly assigned to receive position fixation with either individual head-rest combined with thermoplastic fixation mask (N1 group, n = 14) or thermoplastic fixation mask alone (N2 group, n = 14). Megavoltage computed tomography (MVCT) scanning registration was used to obtain the positioning errors in translation and rotation (ROLL) in the left-right (X), head-food (Y), and belly-back (Z) directions. There were a total of 841 CT scans, consisting of 425 scans in group N1 and 416 scans in group N2. Results:The positioning errors in X, Y, Z and ROLL directions in the N1 group were (1.37 ± 1.04) mm, (1.38 ± 1.12) mm, (1.47 ± 1.62) mm and (1.47 ± 1.62) ° respectively, and they were (1.57 ± 1.21) mm, (2.10 ± 1.51) mm, (1.61 ± 1.50) mm and (1.40 ± 1.30) ° respectively in the N2 group. There was significant difference in positioning errors in the Y direction between N1 and N2 groups ( P = 0.013). In the N1 group, the outward expansion boundaries in X, Y and Z directions was 4.15 mm, 4.23 mm and 4.81 mm respectively, and it was 4.77, 6.31 and 5.08 mm, respectively in the N2 group. In the X direction, there was significant difference in positioning errors taking 3 mm as the dividing point between N1 and N2 groups ( χ2 = 10.516, P < 0.001). In the Y direction, there was significant difference in positioning errors taking 1, 2 and 3 mm as the dividing points between N1 and N2 groups ( χ2 = 24.889, P < 0.001; χ2 = 42.202, P < 0.001; χ2 = 46.204, P < 0.001). In the Z direction, there was significant difference in positioning errors taking 2 mm as the dividing point between N1 and N2 groups ( χ2 = 7.335, P = 0.007). In the N1 group, the percentage of positioning errors < 3 mm in the X, Y and Z directions was 92%, 90% and 92%, respectively. Conclusion:Compared with thermoplastic fixation mask alone, individual head-rest combined with thermoplastic fixation mask can better effectively improve the positioning stability and reduce positioning errors in patients receiving irradiation with helical tomotherapy for head and neck tumors. The combined method is of certain innovation.

The Canabrava Ring, an open ring-shaped pupil expander for cataract surgery associated with iris colobomata: a case report / Aplicação de anel expansor de pupila pequena em formato de anel aberto para cirurgia de catarata em coloboma de íris: relato de caso

ABSTRACT In this report, we describe a new pupil expander device that was used to obtain adequate pupil dilation and centering in a patient with an iris coloboma. Specifically, we describe the case of a patient with an iris coloboma; a Malyugin ring was inserted to facilitate dilation during phacoemulsifi­cation surgery. One of the scrolls did not engage which resulted in an uneven distribution of forces and an eccentric pupil. A Canabrava Ring was then implanted that promoted effective pupillary dilation and remained stable and effective throughout the surgical procedure.

RESUMO Neste relato, descrevemos um novo dispositivo expansor pupilar que foi usado obter adequada dilatação e centralização da pupila em um paciente com coloboma de íris. Especificamente, descrevemos um caso de cirurgia de facoemulsificação em um paciente com coloboma de íris associado à pupila pequena e que, previamente, tentou-se sem sucesso o uso do expansor Malyugin Ring, que provocou uma dilatação pupilar descentrada. Entretanto, com o uso do expansor de íris Canabrava Ring, a pupila permaneceu dilatada e centrada durante toda a cirurgia, permitindo a realização de um procedimento seguro.

Design and application of prevention baffle for foot drop in suspension bed / 中华烧伤杂志

Suspension bed are often used to treat and nurse the wounds of burn patients in clinic. Because of the suspension force, the patients′ activities are limited, and they stay in bed for a long time, which is very easy to cause foot drop, affecting the recovery of the patients. Aiming at this problem, we designed and made a foot drop prevention baffle made of stainless steel, which could withstand the buoyancy of the suspension bed, adjust the feet forwardly and backwardly, to the left and right according to the height of the patients and the distance of the feet to be separated, and keep the foot in a positive and external rotation position according to the comfort of the patients, which achieved good results in clinical application.

Research progresses of MRI-guided radiotherapy equipment / 中国医学影像技术

Being the basic means in accurate and precise radiotherapy, image-guided radiotherapy can target the tumor and visualize the adjacent organs at risk. Compared with MR scanners, imaging devices based on X-ray imaging have disadvantages such as poor soft tissue contrast and radiation. In recent years, the integrated and real-time MR imaging-guided radiotherapy (MRIgRT) technology, which combines MR scanner and the radiotherapy machine, open a new horizon in radiation therapy. The technical advantages of MRIgRT, the research status of MRIgRT equipment at home and abroad, and the technical challenges of MRIgRT were reviewed in this article.

Application and evaluation in clinical dispensing of self-made-dispensing-ampoule Car / 中国实用护理杂志

Objective To evaluate the application of self-made-dispensing-ampoule car in the medicine dispensing for venous transfusion. Methods The self-made-dispensing-ampoule car made based on the ergonomics is a temporary carrier device for medical waste in the need of the whole process of dispensing process. The overall exterior is made of 304 stainless steel, separated into 2 layers. The Upper layer has a frame with integral medicine glass hole made of stainless steel, which can be dismantled from the upper layer. The medicine glasses are small empty medicine bottles used to hold the dispensed medicine; while the lower layer is a slide platform which can put on 3 medical waste classification boxes. The bottom has universal wheels with brakes to help the car move and stop. To focus on 42 emergency department nurses using the device, to analyze their error rate of medicine dispensing, the dispensing time for the same batch of patients with same dosages and shuttle time from dispensing car to buffer room to pour medical waste and compare the data the year before and the year using the device. Results After using it, the dispensing error occurrence rate and nurses dispensing time and shuttle times of pouring waste were 0.31?(3/97 785) , (70.08±3.28) min/time, two times, which were all obviously lower than 1.95? (18/92 095) , (110.04 ± 6.91) min/time, 30 times without using it ( χ2=11.64, 204.16, t=71.70, all P< 0.01) . Conclusion Using the dispensing ampoule car can optimize the dispensing process in dispensing of venous transfusion, ensure patients with safe venous transfusion, raise the efficiency of nurses saving time and efforts.

Application of self-made vacuum sealing drainage device in postoperative fixation and drainage of abdominal pedicled flaps in 8 patients with deep burns of upper limbs / 中华烧伤杂志

From January 2013 to December 2017, 8 patients with deep burns of upper limbs were admitted to our hospital, including 6 males and 2 females, aged 23-48 years. The wound area of full-thickness burns to burns with tendon and bone injury was 4.5 cm×2.0 cm-20.0 cm×10.5 cm. After debridement, thin abdominal flaps with subdermal vascular network in the size of 5.0 cm×2.5 cm-22.0 cm×12.0 cm were applied to cover the wounds, and the donor sites were sutured directly by relaxation. The disposable suction tubes with holes cut on side walls were used as drainage tubes. The part of drainage tubes with holes were wrapped with nano-silver antimicrobial dressings and then placed at the lowest position of pedicle and donor site of abdominal flap and the space between the injured limb and the abdominal wall. The loose nano-silver antibacterial dressing was used to fill the webs of fingers and the gap between the injured limb and the abdominal wall. The transparent film dressing was used to close the surgical area and then connected with a low negative voltage electric suction device to continuously suck at a negative pressure of -15 to -10 kPa. The self-made vacuum sealing drainage device was replaced at intervals of 4 to 5 days until pedicle breakage was performed 2 to 3 weeks after operation. The pedicled abdominal flaps of 8 patients had no torsion or avulsion, no pedicle blood supply disorder, and no infection or skin erosion in the operation area, and all the flaps survived after pedicle breakage.

Design and application of mobile soothing screen for dressing change of children with burns of limb / 中华烧伤杂志

Children with burns often have uncooperative behaviors such as crying and struggling when changing dressing because of pain and fear, which affects dressing change of medical staff and increases the psychological burden of the family members of children and dressing change personnel. In order to solve the above problems, the author′s team designs and makes the mobile soothing screen for pediatric dressing change. Dressing change personnel are isolated from the children′s sight through the screen′s shielding function, and the children′s favorite program showed on the tablet computer attracts the children′s attention. The wound dressing change is completed by using the disposal window on the screen, which has good clinical application effects.

Design of a multifunctional urine bag / 中华烧伤杂志

At present, there are many monitoring devices for vital signs parameters for clinical selection, but urine monitoring has not received enough attention. The traditional manual visual measurement, intermittent measurement of urine pH value, and other methods are still in use, so the authors designed a multifunctional urine bag. The urine bag can set up an alarm system per unit time according to patient′s age and condition as well as set up urine pH value detection area in hard plastic measuring bottle. This device can not only accurately monitor urine volume per unit time, but also hopefully realize the alarm automation of abnormal urine volume per unit time, as well as real-time dynamic monitoring of urine pH value. It is helpful for medical staff to make accurate judgment on patients′ condition changes, to guide the formulation and modification of clinical treatment plans, and to reduce the workload of clinical nursing staff to a certain extent.

Application and evaluation in clinical dispensing of self-made-dispensing-ampoule Car / 中国实用护理杂志

Objective@#To evaluate the application of self-made-dispensing-ampoule car in the medicine dispensing for venous transfusion.@*Methods@#The self-made-dispensing-ampoule car made based on the ergonomics is a temporary carrier device for medical waste in the need of the whole process of dispensing process. The overall exterior is made of 304 stainless steel, separated into 2 layers. The Upper layer has a frame with integral medicine glass hole made of stainless steel, which can be dismantled from the upper layer. The medicine glasses are small empty medicine bottles used to hold the dispensed medicine; while the lower layer is a slide platform which can put on 3 medical waste classification boxes. The bottom has universal wheels with brakes to help the car move and stop. To focus on 42 emergency department nurses using the device, to analyze their error rate of medicine dispensing, the dispensing time for the same batch of patients with same dosages and shuttle time from dispensing car to buffer room to pour medical waste and compare the data the year before and the year using the device.@*Results@#After using it, the dispensing error occurrence rate and nurses dispensing time and shuttle times of pouring waste were 0.31 ‱ (3/97 785), (70.08±3.28) min/time, two times, which were all obviously lower than 1.95‱ (18/92 095), (110.04±6.91) min/time, 30 times without using it (χ2=11.64, 204.16, t=71.70, all P<0.01).@*Conclusion@#Using the dispensing ampoule car can optimize the dispensing process in dispensing of venous transfusion, ensure patients with safe venous transfusion, raise the efficiency of nurses saving time and efforts.

Development of a Safe Syringe Disposal System Moving towards Automated Syringe Data Collection / 대한의료정보학회지

OBJECTIVES: An automatic needle destroyer (ANDY) was developed to prevent needlestick injuries, and usability tests were conducted in several hospitals. The addition of extra features to the ANDY is in progress, such as data collection and automatic identification of used syringes. Thus, this report describes how the ANDY can be used to track the data of used syringes. METHODS: The motor torque required for barrel separation differs according to syringe diameters. By monitoring the electric current which is consumed for the motor torque, the type of syringe can be identified. Twelve prototypes were produced, and five usability tests were conducted in hospitals. RESULTS: After use, a syringe is inserted into the proposed device, and the needle portion is then cut and separated from the syringe body (barrel) and discarded. The needles are collected in a sharps container for hygienic disposal, and the barrel is dropped into a general medical waste container. CONCLUSIONS: The ANDY can be used to track the syringe used for each patient. The barcode can be read while the syringe rotates in the main body of the ANDY with a built-in omnidirectional scanner. Collection of information during syringe disposal can facilitate stock management. This system could also be extended to other types of consumable medical devices, although it would still be a challenge to differentiate each medical device.

Application of assistive technology in the field of vein puncture in the treatment of wounds / 实用医学杂志

Objective To investigate the vein puncture assistive technology in the field of insufficient light conditions of auxiliary medical service staff quickly establish vein channel,improve the rescue efficiency and ensure the operational safety of application.Methods The night field training field,simulation of dark light intravenous therapy environment,select a project in Beijing City Corps training forces 429 soldiers as the research object,randomly divided into control group 214 cases,the use of military flashlight for intravenous infusion,215 cases in the observation group using the vein puncture assisted infusion,two group,the establishment of a single one-time successful puncture vein passage time and the incidence of adverse reactions.Results The simulation experiment in the observation group and the control group disposable puncture success rate were 95.8％,75.7％,the average puncture time was (66.38 ± 11.34)s,(89.94 ± 12.38) s,the incidence of adverse reaction were 3.88％,10.49％ The differences between the two groups were statistically significant (P ＜ 0.05).Conclusion Venipuncture assistive technology can improve the light environment,the success rate of vein puncture and strong practicability,high safety,wound treatment is suitable for various environments,fill the blank of vein puncture without light conditions,is of great significance to the security of military force.

New plastic ampoule opening design for use without needles: an evaluation study / 中国实用护理杂志

Objective To produce a plastic ampoule with an opening that fits syringe adapters to allow solutions to be drawn up without needles (to avoid needle stick and sharps injuries) and to test the effectiveness of the new design in terms of residual fluid volume and risk of microorganism contamination. Methods Evaluation study based on laboratory research was adopted. For the experimental group, 30 ampoules based on the new design were produced by 3D printing. The ampoules were sterilized and filled with 2 ml sterile water. The sterile water was drawn up without the use of needles, and the wastage fluid (i.e., 2 ml minus the quantity drawn up) was calculated. A 1 ml aliquot of sterile water from each ampoule was dropped onto a nutrient agar plate, and the number of colony-forming units was assessed after 48 h. For each ampoule, the experiment was performed twice. Sixty 2 ml glass-packaged sterile water injections constituted the control group. The fluid was drawn up with a needle, and the superfluous fluid and number of colony-forming units were assessed, as in the experimental group. Results The mean wastage fluid was 0.06 ml, 95% CI was 0.05-0.07 ml in the experimental group and the superfluous fluid was 0.06 ml, 95% CI was 0.06-0.07 ml in the control group, there was no significant difference between the two groups (Z=-1.194, P=0.233). The number of colony-forming units was 8 in the experimental group and 4 in the control group, there was no significant difference between the two groups (P=0.224). Conclusions The newly designed plastic ampoule opening could help health workers to avoid needle stick and sharps injuries when drawing up solution. The wastage fluid and microorganism contamination levels met the required standards, indicating that the new design is suitable for clinical application.

Safe Embrace: technological innovation for elderly safety in the use of toilets / Abrazo Seguro: innovación tecnológica para seguridad de ancianos en el uso del baño / Abraço Seguro: inovação tecnológica para segurança de idosos no uso do sanitário

ABSTRACT Objective: to describe the development of a device to prevent falling for seniors when using the toilet. Method: we sought in literature and in the hospital market for a device to prevent falling, without success. Geriatric nurses, in partnership with the hospital engineering team, elaborated a prototype and, after several analysis, looked for a partner for its production. Results: the device, named "Safe Embrace", installed and tested in an apartment of the Geriatric ward, was positively evaluated by the health team, patients and caregivers. Conclusion: for the benefit obtained and considering the safety and privacy during use, Safe Embrace was patented so that other institutions could use it.

RESUMEN Objetivo: describir la elaboración del dispositivo de prevención de caídas para ancianos durante el uso del baño. Método: se buscó en la literatura y mercado del área hospitalaria un dispositivo para prevenir caída, sin éxito. Las enfermeras de la geriatría, en asociación con el equipo de ingeniería del hospital, elaboraron un prototipo y, tras varios análisis, buscaron un socio para su producción. Resultados: el dispositivo, denominado "Abrazo Seguro", instalado en un apartamento de la geriatría para la prueba, fue evaluado positivamente por el equipo de salud, pacientes y cuidadores. Conclusión: por el beneficio obtenido, y considerando la seguridad y privacidad durante el uso, el Abrazo Seguro fue patentado para que otras instituciones lo disfruten.

RESUMO Objetivo: descrever a elaboração do dispositivo de prevenção de quedas para idosos durante o uso do sanitário. Método: buscou-se na literatura e mercado da área hospitalar um dispositivo para prevenir queda, sem sucesso. Enfermeiras da geriatria, em parceria com a equipe de engenharia do hospital, elaboraram um protótipo e, após várias análises, procuraram um parceiro para sua produção. Resultados: o dispositivo, nominado "Abraço Seguro", instalado em um apartamento da geriatria para teste, foi avaliado positivamente pela equipe de saúde, pacientes e cuidadores. Conclusão: pelo benefício obtido e considerando a segurança e privacidade durante o uso, o Abraço Seguro foi patenteado para que outras instituições desfrutassem dele.

Experiencia interdisciplinaria para el diseño de productos para la salud / Interdisciplinary experience for the design of health care products

Background: Training of innovative health professionals is necessary for the development of an effective health system in a limited resources context. However, the professionals underestimate their innovative role and receive sparse training in this issue. Meanwhile, industrial designers are trained to innovate but have a weak knowledge about health issues. Aim: To describe the outcomes of a study based on Challenge-Based Learning (CBL) where health and industrial design students learned about product development aimed to solve health problems. Material and Methods: Twenty industrial design students, seven health care students and nine teachers of both disciplines participated in a User Centered Design workshop. Using the CBL method, they were challenged to develop products to tackle a health problem. At the end of the challenge, teachers and students evaluated the products using a semantic differential method and answered a questionnaire assessing the activity. Results: In the semantic differential method, all participants evaluated usefulness, functionality and organization of the product rather than its originality. The greatest discrepancies in evaluation were found between design and health teachers. Students positively evaluated the challenge, although the weakest point was its coordination. Conclusions: CBL and interdisciplinary work are adequate tools for the development of innovative competences, as well as understanding the central elements of innovation.

Development and evaluation of portable pulse vacuum pressure steam sterilizer / 中华护理杂志

Objective Due to poor effects of sterilization,low efficiency and inconvenience of field emergency transportation for portable exhaust pressure steam sterilizer,we aimed to design and develop a portable pulse vacuum pressure steam sterilizer in order to effectively improve quality and efficiency of sterilization for sterile medical equipment in disaster and emergency medical treatment.Methods From the beginning of February 2013,we focused on the features of small size,light weight,reliable sterilizing effect and fast speed of sterilization,and conducted series of technology researches,and finally developed portable pulse vacuum pressure steam sterilizer which was suitable for individual carrying or air delivery.Results We performed outdoor sterilization tests for portable vacuum pressure steam sterilizer and portable exhaust pressure steam sterilizer under the same condition.Portable pulse vacuum pressure steam sterilizer achieved a 100％ qualification rate,average sterilization cycle was 28.6min per time,sterilization by weight was 48L/h,average water consumption was 0.4L/boiler,average power consumption was 0.7kw/h per time,and sterilization operation index,maneuverability and transportability were significantly better than those of portable exhaust pressure steam sterilizer.Conclusion The developed 4 portable pulse vacuum pressure steam sterilizer have higher cost performance,and have been successfully applied for medical service training and non-war medical treatment activities in our hospital.