LOW FLOW BLOOD AND IV FLUID WARMER

低流量血液和静脉输液加温器

• 批准号: 6071521
• 负责人: KENNETH L CARR
• 金额: $ 10.38万
• 依托单位: MICROWAVE MEDICAL SYSTEMS, INC.
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-05-15 至 2000-11-14
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6071521
• 关键词: biomedical equipment development; clinical biomedical equipment; fluid flow; heat; hospital equipment /supply; intravenous administration; microwave radiation; portable biomedical equipment; temperature; thermometry

In 1989, transfusions of one or two units of blood at low flow rates (less than 25ml/min) accounted for more than 60% of the 3.2 million U.S. patients who received a total of 12.1 million units of red blood cells. A warming device that could deliver fluids, including blood, at normothermic temperature at low flow rates would prove useful for the prevention of hypothermia, particularly in neonatal and pediatric patients for whom low flow rate infusions and transfusions are the norm. The long-term objective of this proposal is to develop a warming device capable of delivering intravenous fluids and blood at normothermic temperatures at low flow rates consistent with neonatal and pediatric use. The innovative aspects of this device are that it will be small (less than 147cm3), lightweight (approximately 113g), and will have a small priming volume (less than 1.4ml). More important, this device will be designed to have no supply voltages in the heating cavity, thereby allowing the device to be located very close to the patient. This will substantially reduce patient-line cooling, yet allow more convenience of use compared with devices which are water-jacketed right up to the IV site. PROPOSED COMMERCIAL APPLICATIONS: A warmer that could safely deliver fluids at normothermic temperature at low flow rates would prove useful in the prevention of hypothermia, particularly in small patients. To accomplish this, the warming device should be located in close proximity to the patient. Commercial acceptance of such a device is assured.

1989年，以低流量（小于25ml/min）为单位的血液输血占320万美国患者中的60％以上，这些患者总共收到了1,210万单位的红细胞。 在低流速下可以在正常温度下输送流体（包括血液）的变暖装置将证明可用于预防体温过低，尤其是在新生儿和儿科患者中，低流速输注和输血是标准的。该提案的长期目标是开发一种能够在低流速和新生儿和小儿使用一致的低流速下在正常温度下输送静脉输液和血液的变暖装置。该设备的创新方面是它将很小（小于147厘米），轻巧（约113克），并且启动量很小（小于1.4ml）。更重要的是，该设备将设计为在加热腔中没有供应电压，从而使该设备非常靠近患者。这将大大减少患者线的冷却，但与直接夹在静脉注射站点的设备相比，可以提供更多的便利性。拟议的商业应用：一种可以在低流量下以较低温度安全输送液体的温暖，将被证明可用于预防体温过低，尤其是在小型患者中。为此，变暖装置应靠近患者。确保对这种设备的商业接受。