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The Role of Mobile Van Mammography Supported by Teleradiology in the Early Diagnosis of Breast Cancer: An Innovative Approach to a Growing Public Health Problem 由远程放射学支持的移动厢式乳房x线摄影在乳腺癌早期诊断中的作用:一种解决日益严重的公共卫生问题的创新方法
Pub Date : 2022-12-23 DOI: 10.60142/ijhti.v1i03.30
A. Kalyanpur, Rama R. Sudhindra, P. Rao
Cancer is a leading cause of death in women, accounting for 14% of cancers in Indian women. Reduction in mortality rates is contingent upon early diagnosis. Mammography is established as a diagnostic modality that ensures early detection of breast cancer. With the aim of promoting early diagnosis of breast cancer. The Poornasudha Cancer Foundation, a registered non-profit organization and Teleradiology Solutions, Bangalore, a teleradiology service provider collaborated together. ‘MOM Express’, (Mobile on-site Mammography) a bus equipped with mammography equipment provides mammography facilities to the women of rural and urban areas of Karnataka. DICOM images of mammograms were electronically transmitted by technologists from the Poornasudha mammography van to experts at a teleradiology reporting hub in Bangalore. Over a period of 4 years beginning September 2018, 2888 studies were interpreted via teleradiology. Women from rural and urban areas of Karnataka were included in the study. The mean age of the participants was 49.80 years (8.83 SD) confidence interval CI (95%) (50.12–49.47). The mean turn-around-time (TAT) for the report to reach the Poornasudha mammography vans once the images had been received was 12.74 hours (CI 95%: 13.15 – 12.34). The importance of mammography lies in the early diagnosis of breast cancer at an early stage of the disease before it has progressed with distant metastasis, which allows for an effective treatment strategy with an enhanced prognosis for long-term survival. In the setting of radiologist shortages, teleradiology provides a solution that allows for timely reporting of mammograms in a screening environment. This study highlights the role of teleradiology in the early detection of breast cancer in India.
癌症是女性死亡的主要原因,占印度女性癌症患者的14%。死亡率的降低取决于早期诊断。乳房x光检查被确立为一种确保早期发现乳腺癌的诊断方式。目的是促进乳腺癌的早期诊断。注册的非营利组织Poornasudha癌症基金会和远程放射学解决方案,班加罗尔,远程放射学服务提供商合作。“MOM Express”(移动现场乳房x光检查)是一辆配备乳房x光检查设备的公共汽车,为卡纳塔克邦农村和城市地区的妇女提供乳房x光检查设施。乳房x光检查的DICOM图像由来自Poornasudha乳房x光检查车的技术人员以电子方式传输给班加罗尔远程放射学报告中心的专家。从2018年9月开始的4年时间里,通过远程放射学解释了2888项研究。来自卡纳塔克邦农村和城市地区的妇女被纳入了这项研究。参与者的平均年龄为49.80岁(8.83 SD),可信区间CI(95%)(50.12-49.47)。收到图像后,报告到达Poornasudha乳房x光检查车的平均周转时间(TAT)为12.74小时(CI 95%: 13.15 - 12.34)。乳房x光检查的重要性在于,在乳腺癌发展到远处转移之前,在疾病的早期阶段对其进行早期诊断,这使得有效的治疗策略能够提高长期生存的预后。在放射科医生短缺的情况下,远程放射学提供了一种解决方案,可以在筛查环境中及时报告乳房x光照片。这项研究强调了远程放射学在印度乳腺癌早期检测中的作用。
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引用次数: 1
Radioactive Waste Management in a Medical Cyclotron Facility - A Review 医疗回旋加速器设施中的放射性废物管理综述
Pub Date : 2022-12-23 DOI: 10.60142/ijhti.v1i03.53
Chelsea Johnson, N. G., S. Balivada, S. Prakash
The cyclotron is a device used to create radioactive atoms with a short half-life (radioactive isotopes) that can be utilised for research and medical imaging. When nuclear and radiation facilities are utilized, serviced, or decommissioned, radioactive waste is produced. The amount of radioactive waste produced is greatly decreased by good operating procedures. Iodine-123, Technetium-99m, Iodine-131, Gallium-67 Thallium-201 and fluorine-18 fluorodeoxyglucose are among the radionuclides utilised in medicine. The most widely used gaseous/aerosol radionuclides are (aerosolized) technetium-99m, xenon-133, and krypton-81m. The use of radionuclides (radioactive element) for industrial process control and instrumentation, medical diagnostic and therapeutic purposes, as well as numerous uses in research, education, agriculture, geological exploration, construction, and other human endeavors, results in radioactive waste. These applications generate a variety of radioactive waste, which can come from sealed sources and be in solid, liquid, or gaseous form. If the trash containing considerable amounts of radionuclides is not handled properly, there may be serious concerns to both the environment and human health. Due to the wide variety of waste kinds addressed, special consideration must be paid to safety concerns and regulatory management. This article will examine the fundamental procedures for managing radioactive waste in compliance with the regulatory agencies like AERB (Atomic Energy Regulatory Board) and IAEA (International Atomic Energy Agency).
回旋加速器是一种用于制造半衰期短的放射性原子(放射性同位素)的装置,可用于研究和医学成像。当核和辐射设施被使用、维修或退役时,就会产生放射性废物。良好的操作程序大大减少了放射性废料的产生。碘-123、锝-99m、碘-131、镓-67、铊-201和氟-18氟脱氧葡萄糖是医学上使用的放射性核素。最广泛使用的气态/气溶胶放射性核素是(雾化的)锝-99m,氙-133和氪-81m。放射性核素(放射性元素)用于工业过程控制和仪器仪表、医疗诊断和治疗目的,以及在研究、教育、农业、地质勘探、建筑和其他人类活动中的众多用途,产生了放射性废物。这些应用产生各种各样的放射性废物,这些废物可能来自密封来源,并以固体,液体或气体形式存在。如果不妥善处理含有大量放射性核素的垃圾,可能会对环境和人类健康造成严重影响。由于处理的废物种类繁多,必须特别考虑安全问题和监管管理。本文将探讨管理放射性废物的基本程序,以符合监管机构,如AERB(原子能监管委员会)和原子能机构(国际原子能机构)。
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引用次数: 1
Biomedical Engineering Profession – An Overview and Global Comparison of Staffing Criteria and Workforce 生物医学工程专业-人员配置标准和劳动力的概述和全球比较
Pub Date : 2022-12-23 DOI: 10.60142/ijhti.v1i03.46
Sambhu Ramesh, K. Kachroo, Nitturi Naresh Kumar, Mrutunjay Jena, Manisha Panda
Introduction: Biomedical Engineering is a specialized profession that incorporates engineering, science, technology, and medicine competence and responsibilities. A biomedical engineer who works at hospital and manages the biomedical engineering department by integrating all the health care technologies for patient safety is called a clinical engineer.Methodology: Rapid literature on the workforce as well as staffing criterion has been done by searching in PubMed, google scholar and relevant websites.Results: Variations in the staffing criteria exist across all the world. There are multiple staffing criterions put forward by various health system agencies. However, a standardised staffing criterion is lacking in many countries. The conventional staffing pattern developed primarily on the basis of number of patients needs to be modified by incorporating multiple components such as the nature of care delivery, number of biomedical devices used, average number of maintenance work orders received etc. The procurement and maintenance of biomedical devices are often get disrupted in developing countries due to inadequate staffing. Low-income countries depend on donations for procurement of medical devices, however most of these devices will stop working within a period of 5 years due to lack of maintenance.Conclusion: Developing an appropriate job description specific to the county and adopting a standardised staffing pattern could contribute immensely to the medical workforce as well as improving the quality of medical care.Manuscript HighlightsThis paper provides an overview of considerations used to develop staffing criteria for biomedical engineers across the globe. The paper also does a multicounty comparison on biomedical workforce published by the World Health Organisation in order to determine the various factors to be considered for developing a staffing criterion. High income countries like Australia, Canada and USA follows standards according to their requirements whereas the LMICs doesn’t follows a framed criterion. The paper discusses various models available in place which are used by various health administrative agencies to consider developing and regulating the staffing standards of biomedical engineers in their respective regions. The paper examines the health regulations considering the biomedical engineer staffing criterions developed by regulatory and administrative agencies from different countries. Based on all these analyses, recommendations are made on criterions to be considered for developing staffing pattern and implementing regulatory body for biomedical engineering profession.
生物医学工程是一门集工程、科学、技术和医学为一体的专业。在医院工作并管理生物医学工程部门,整合所有医疗保健技术以确保患者安全的生物医学工程师被称为临床工程师。方法:通过在PubMed, google scholar和相关网站上搜索,快速完成了关于劳动力和人员配置标准的文献。结果:世界各地的人员配置标准存在差异。各卫生系统机构提出了多种人员配置标准。但是,许多国家缺乏标准化的员额编制标准。主要根据患者数量制定的传统人员配置模式需要进行修改,纳入多种组成部分,如提供护理的性质、使用的生物医学设备的数量、收到的维护工作订单的平均数量等。在发展中国家,由于人员配备不足,生物医学设备的采购和维护经常受到干扰。低收入国家依靠捐赠来采购医疗器械,但由于缺乏维护,这些器械中的大多数将在5年内停止工作。结论:制定适合本县的岗位描述,采用标准化的人员配置模式,可以极大地促进医疗队伍建设,提高医疗服务质量。本文概述了用于开发全球生物医学工程师人员配备标准的考虑因素。本文还对世界卫生组织公布的生物医学劳动力进行了多国比较,以确定在制定人员配备标准时需要考虑的各种因素。像澳大利亚、加拿大和美国这样的高收入国家根据自己的要求制定标准,而中低收入国家则不遵循框架标准。本文讨论了各卫生行政部门在考虑制定和规范本地区生物医学工程师编制标准时所采用的各种现有模式。本文结合各国监管和管理部门制定的生物医学工程师人员配置标准,对卫生法规进行了考察。在此基础上,提出了生物医学工程专业人员配置模式和监管机构实施应考虑的准则。
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引用次数: 1
Types of Wound Dressings and Materials used in Mild to Moderately Exuding Wounds: A Review 轻度至中度渗出性伤口敷料和材料的种类:综述
Pub Date : 2022-12-10 DOI: 10.60142/ijhti.v1i03.58
Meduri J. Susrutha, Shahrukh Khan, Susheela K. Branham, A. Pande
In this review wehave focused upon the various wound types, wound dressing stages, and wound dressing classification and characteristics. The main objective of this review is to explain the purpose of wound dressings and different types of wound dressings used. Further we have emphasized upon various biomaterials employed in dressings and their need in specific wound dressings. Biomaterials are used in the dressings to improve the healing rate of the injury, maintain moisture at the area of wound, heamostasis and reduce inflammation. So, to achieve this purpose, various approaches of wound dressings and the role of various biomaterials are also discussed. The properties, methods of preparation, advantages, and disadvantages along with future scope are discussed.
在这篇综述中,我们重点介绍了各种伤口类型、伤口敷料阶段以及伤口敷料的分类和特点。本综述的主要目的是解释伤口敷料的目的和不同类型的伤口敷料的使用。此外,我们还强调了在敷料中使用的各种生物材料及其在特定伤口敷料中的需求。在敷料中使用生物材料,提高伤口的愈合速度,保持伤口的水分,止血,减少炎症。因此,为了达到这一目的,我们也讨论了各种伤口敷料的方法和各种生物材料的作用。讨论了该材料的性质、制备方法、优缺点及应用前景。
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引用次数: 0
Ceramic and Polymeric Composite Materials used in Reinforcing UHMWPE for Improved Mechanical and Tribological Properties in Orthopedic Applications 陶瓷和聚合物复合材料用于增强超高分子量聚乙烯,以改善骨科应用中的机械和摩擦学性能
Pub Date : 2022-12-10 DOI: 10.60142/ijhti.v1i03.56
S. Balivada, Gayathri Nayak, Chelsea Johnson, S. J. Ahmed, Sathvik S. Appagana
UHMWPE is a popular choice of biomaterial for joint replacements, particularly in hip, knee, and shoulder replacement procedures, notably as sliding material in between the load bearing surfaces due to its superior biocompatibility, tensile yield, impact strength, and high crystallinity. Even though it has good mechanical qualities, it has a relatively low wear resistance, which causes wear particles to shred and trigger immunological reactions and possibly osteolysis. This also has an impact on the implant’s lifetime. The wear issue can be solved using a variety of approaches, including thermal therapy and antioxidant infusion. The mechanical qualities suffer as a result of these methods’ efficacy in addressing tribological problems. One such way of reducing wear and oxidation rates while preserving mechanical characteristics is reinforcing the conventional UHMWPE with various composite materials. In this review the tensile and tribological properties of such ceramic and polymeric materials like zirconia, hydroxyapatite, carbon nanotube and graphene are evaluated. This review will investigate several ceramic and polymer-based fillers as an alternative to currently used methods such as improved radiation cross-linking and antioxidant treatment. CNT reinforced UHMWPE is still in the testing stage and is not yet on the market due to biocompatibility concerns. However, when compared to their competitors, their tribological properties are adequate but not exceptional. The best tensile properties are found in hydroxyapatite reinforced UHMWPE (but only at high concentrations such as 30wt%), followed by CNT. They do not have biocompatibility issues like CNT because of their structural similarity to natural bone. They also outperform CNT and ATZ composites in terms of tribological properties. As a result, they are best suited for reinforcement (with UHMWPE).
超高分子量聚乙烯(UHMWPE)是关节置换的一种常用生物材料,特别是在髋关节、膝关节和肩部置换手术中,由于其优越的生物相容性、拉伸屈服、冲击强度和高结晶度,特别是作为承重面之间的滑动材料。尽管它具有良好的机械品质,但它的耐磨性相对较低,这会导致磨损颗粒破碎,引发免疫反应,并可能导致骨溶解。这也会影响种植体的使用寿命。磨损问题可以通过多种方法解决,包括热疗法和抗氧化剂输注。由于这些方法在解决摩擦学问题上的有效性,机械质量受到影响。在保持机械特性的同时减少磨损和氧化率的一种方法是用各种复合材料增强传统的超高分子量聚乙烯。本文综述了氧化锆、羟基磷灰石、碳纳米管和石墨烯等陶瓷和聚合物材料的拉伸和摩擦性能。本文综述了几种陶瓷和聚合物基填料作为替代目前使用的方法,如改进的辐射交联和抗氧化处理。碳纳米管增强超高分子量聚乙烯仍处于测试阶段,由于生物相容性问题尚未上市。然而,与它们的竞争对手相比,它们的摩擦学性能是足够的,但并不特别。抗拉性能最好的是羟基磷灰石增强的超高分子量聚乙烯(但只有在高浓度时,如30wt%),其次是碳纳米管。它们没有碳纳米管那样的生物相容性问题,因为它们的结构与天然骨相似。它们在摩擦学性能方面也优于碳纳米管和ATZ复合材料。因此,它们最适合加固(用超高分子量聚乙烯)。
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引用次数: 0
Comprehensive Study of Cellulosic and Synthetic Membranes for Dialyzer 透析器用纤维素和合成膜的综合研究
Pub Date : 2022-12-10 DOI: 10.60142/ijhti.v1i03.57
Divya V. Patil, S. Balivada, Satyam Gorde
The kidney is the primary osmoregulatory organ in the mammalian body, removing harmful wastes such as ammonia and excess fluid from the blood and maintaining the ionic concentrations of the blood by retaining electrolytes, calcium, and phosphorus. In kidney failure, the kidneys are unable to filter the blood effectively. Dialysis is a survival treatment for patients with kidney failure. Dialysis involves the exchange of blood and dialysate across a semipermeable membrane. Concentration gradients drive diffusion, and hydrostatic pressure gradients drive convection. There are two different types of dialysis: peritoneal and hemodialysis. During hemodialysis, the blood is filtered by an external device called a dialyzer. Since the 1950s, dialyzers have been used commercially for hemodialysis; their removal capacity of uremic substances, biocompatibility, and combination of glomerular and renal tubular function have all been the subject of ongoing development. Despite the progress, mortality remains high. Investigating how dialysis membranes affect long-term morbidity and mortality in hemodialysis maintenance patients is essential. Dialyzer membranes play a vital role in dialysis treatment. Important characteristics of membrane material include permeability, hydrophilicity, and biocompatibility. Cellulosic and synthetic polymeric membranes are the two primary types of dialysis membranes. This article comprehensively analyzes the concept of dialysis and the characteristics of dialyzers and their types. This review focuses critically on the membranes of the dialyzer and their classification. We anticipate that this review will aid researchers in selecting the optimal dialyzer and membrane material to improve hemodialysis treatment outcomes for renal disease patients.
肾脏是哺乳动物体内主要的渗透调节器官,它能清除血液中的有害废物,如氨和多余的液体,并通过保留电解质、钙和磷来维持血液中的离子浓度。肾功能衰竭时,肾脏不能有效地过滤血液。透析是肾衰竭患者的一种生存治疗方法。透析包括血液和透析液通过半透膜的交换。浓度梯度驱动扩散,静水压力梯度驱动对流。有两种不同类型的透析:腹膜透析和血液透析。在血液透析过程中,血液被一个叫做透析器的外部装置过滤。自20世纪50年代以来,透析器已被商业化用于血液透析;它们对尿毒症物质的清除能力、生物相容性以及肾小球和肾小管功能的结合都是正在发展的主题。尽管取得了进展,但死亡率仍然很高。研究透析膜如何影响血液透析维持患者的长期发病率和死亡率是必要的。透析膜在透析治疗中起着至关重要的作用。膜材料的重要特性包括渗透性、亲水性和生物相容性。纤维素膜和合成聚合物膜是透析膜的两种主要类型。本文全面分析了透析的概念、透析器的特点及其类型。本文重点介绍了透析器的膜及其分类。我们期望这篇综述将有助于研究者选择最佳的透析器和膜材料,以改善肾脏疾病患者的血液透析治疗效果。
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引用次数: 0
Technological Evolution of Ultrasound Devices: A Review 超声设备的技术发展综述
Pub Date : 2022-12-10 DOI: 10.60142/ijhti.v1i03.55
Gayathri Nayak, Vallidevi Bolla, S. Balivada,  Prabhudev P.
Numerous imaging technologies have been researched upon and applied in the field of medicine to enhance clinicians’ faculty for diagnosis of indispositions or diseases and the modalities include magnetic resonance imaging (MRI), X-ray imaging, computed tomography (CT) and ultrasound (US). One imaging technique that is used to identify abnormalities in various body areas is the ultrasound. It is a non-invasive method that provides real-time imaging without radiation exposure. This article mainly focuses on ultrasonography and the various technological and equipment advancements over the years. It is more difficult to operate conventional ultrasound equipment due to its complex structure, which is large in size and takes up more space. For scanning different parts of the body, there are a variety of probes to choose from. The probes are selected based on the size and shape of the beam. Imaging can be performed in several modes, such as A mode, B mode, M mode, D mode, etc. Capacitive micro-machined ultrasound transducers (CMUTs) replace the traditional piezoelectric crystals in a transducer that produces ultrasonic waves. Ultrasonography has many applications in the diagnosis of various parts of the body, i.e., lungs, abdominal parts, heart, bladder, and so on. From the earliest ultrasound machines in the 1950s with patient immersion tanks to the hand held ultrasound devices in the late 2000s where images can be obtained on mobile screens, the evolution of this device over centuries has been phenomenal.
许多成像技术已经被研究和应用于医学领域,以提高临床医生对不适或疾病的诊断能力,其中包括磁共振成像(MRI)、x射线成像、计算机断层扫描(CT)和超声(US)。一种用于识别身体各个部位异常的成像技术是超声波。这是一种非侵入性的方法,可以提供实时成像,而无需辐射暴露。本文主要介绍近年来超声检查技术和设备的发展。常规超声设备结构复杂,体积大,占用空间大,操作难度大。对于扫描身体的不同部位,有多种探头可供选择。根据光束的大小和形状选择探头。可在多种模式下成像,如A模式、B模式、M模式、D模式等。电容式微机械超声换能器(CMUTs)取代了传统的压电晶体换能器来产生超声波。超声检查在身体各部位的诊断中有许多应用,如肺、腹部、心脏、膀胱等。从20世纪50年代最早的超声波设备,到21世纪后期的手持超声波设备,可以在移动屏幕上获得图像,几个世纪以来,这种设备的发展是惊人的。
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引用次数: 1
Three-Dimentional Printing Materials for Maxillofacial Structure Development: A Review 面向颌面结构发展的三维打印材料研究进展
Pub Date : 2022-08-17 DOI: 10.60142/ijhti.v1i02.39
Kavya Suresh, R. Kandisa, Dilip K. Chekuri, P. Tiwari
A 3D printing is an additive manufacturing technique that has wide applications in various fields, including healthcare, especially in producing complex and entangled geometries like maxillofacial structures. Various 3D printing techniques are available; however, the range of biomaterials satisfying the printability criteria is limited. Generally, 3D printing biomaterials fall under classes as such a metals, ceramics, polymers, composites and hydrogels. In maxillofacial structure development, 3D printing is used for manufacturing surgical guides, models, splints, patient-specific implants and facial prostheses. This review describes various 3D printable materials and a brief overview of 3D printing techniques, specifically explored in maxillofacial structure-related applications. 3D bioprinting materials are beyond the scope of this review.
3D打印是一种增材制造技术,在包括医疗保健在内的各个领域都有广泛的应用,特别是在生产复杂和纠缠的几何形状(如颌面结构)方面。多种3D打印技术可用;然而,满足可打印性标准的生物材料的范围是有限的。一般来说,3D打印生物材料属于金属、陶瓷、聚合物、复合材料和水凝胶等类别。在颌面结构开发中,3D打印用于制造手术导板、模型、夹板、患者专用植入物和面部假体。这篇综述描述了各种3D打印材料和3D打印技术的简要概述,特别是在颌面结构相关的应用中进行了探索。3D生物打印材料超出了本综述的范围。
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引用次数: 0
Health Technology and Medical Devices: Bedrock of Futuristic Healthcare 健康技术和医疗设备:未来医疗保健的基石
Pub Date : 2022-08-17 DOI: 10.60142/ijhti.v1i02.33
S. Gupta
.
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引用次数: 0
Importance of Hospital Furniture in Modern Medical Facilities 医院家具在现代医疗设施中的重要性
Pub Date : 2022-08-17 DOI: 10.60142/ijhti.v1i02.44
Mufaiz-Ul- Zaman, R. Zaman
Hospital furniture is an essential part of medical care for hospitals. It includes trolleys, side screens and beds to name just a few. Medical devices alongside modern furnishings have played an important role within health care ever since its inception. Hospital Furniture is one thing that every hospital must possess. The hospitals are committed to ensuring that patients feel comfortable and safe during their treatments, which is why they use advanced furniture technology in all their clinical settings. Medical examination of patients is a crucial part in diagnosing them, and ICU hospital furniture helps to ensure the safety for critical ill people. Clinical furnishings thus have immense variety applications which can be found at any medical facility. Hospital furniture is a necessary and important part of any healthcare system. It can make or break the quality care patients receive while hospitalized, so its design must be top notch. From beds to stretchers, even medical carts, there are numerous types that each has their own specific purpose in mind for hospital use which will help you provide comfort as well maintain safety on both sides with ease. Furniture is essential for creating a comfortable and welcoming environment. It’s also necessary to ensure that furniture can be easily maintained, as well as being durable enough so it lasts through years of use without showing too much wear or tear from normal usage by patients in your hospital facility. The right medical supplier will help to me et al. these needs with their wide variety products available on the market today including: office chairs (especially those designed specifically towards hospitals), tables made especially low height spaces like examining rooms where people may want extra space around them when sitting down but not folded up completely against wall.
医院家具是医院医疗保健的重要组成部分。它包括手推车,侧屏和床,仅举几例。医疗设备和现代家具自成立以来一直在医疗保健中发挥着重要作用。医院家具是每个医院都必须拥有的东西。医院致力于确保患者在治疗过程中感到舒适和安全,这就是他们在所有临床环境中使用先进家具技术的原因。对病人进行医学检查是诊断病人的重要环节,ICU医院的家具有助于确保危重病人的安全。因此,临床陈设在任何医疗设施中都可以找到各种各样的应用。医院家具是任何医疗保健系统的必要和重要组成部分。它可以决定病人在住院期间接受的护理质量,所以它的设计必须是一流的。从床到担架,甚至医疗车,有许多类型,每一种都有自己的特定用途,用于医院使用,这将帮助你提供舒适,并保持安全的两侧轻松。家具对于营造舒适温馨的环境是必不可少的。同样有必要确保家具易于维护,并且足够耐用,这样它可以持续使用多年,而不会显示出太多的磨损或撕裂,因为你的医院设施的病人正常使用。合适的医疗供应商将帮助我等人满足这些需求,他们今天在市场上提供各种各样的产品,包括:办公椅(特别是那些专门为医院设计的),特别低高度的桌子,比如检查室,人们坐下时可能需要额外的空间,但不能完全靠墙折叠。
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引用次数: 0
期刊
International Journal of Health Technology and Innovation
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