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    • 15. 发明授权
    • Apparatus and method for blood oxygenation
    • US06387324B1
    • 2002-05-14
    • US09409952
    • 1999-09-30
    • William R. PattersonStephen E. MyrickVincent Divino, Jr.Jeffrey L. CreechMark S. Buhr
    • William R. PattersonStephen E. MyrickVincent Divino, Jr.Jeffrey L. CreechMark S. Buhr
    • A61M114
    • A61M1/1698A61M1/3613A61M2202/0476B01F3/04758Y10S128/03Y10S261/28
    • An apparatus and method for blood oxygenation is provided, advantageously comprising an extracorporeal circuit for the preparation and delivery of hyperoxic or hyperbaric blood. In one embodiment, an apparatus for gas-supersaturating fluids, e.g., physiologic saline, includes a chamber having a first inlet to receive the fluid; a second inlet to receive a gas, e.g., oxygen, from a gas supply that maintains pressure within the chamber at a predetermined level, advantageously about 600 p.s.i.; and an outlet advantageously coupled to a capillary assembly. An atomizer nozzle coupled to the first inlet advantageously creates within the chamber fine droplets of fluid into which gas diffuses to create the gas-supersaturated fluid, which collects within the chamber below the atomizer nozzle for removal via the outlet. The removed gas-supersaturated fluid mixes with blood provided by a blood pump, the mixing occurring within a liquid-to-liquid oxygenation assembly including a pressurizable chamber having inlets for the gas-supersaturated fluid and blood, the inlets advantageously arranged to create a vortical or cyclonic fluid flow within the chamber to promote mixing. The mixed fluid exits the chamber via an outlet for delivery to a patient (e.g., sub-selective delivery) or other site via a catheter, infusion guidewire, or other interventional fluid delivery device, the mixed fluid advantageously comprising blood having increased oxygen levels, i.e., oxygenated blood. Alternately, the blood may be provided by the pump to a high pressure hollow fiber or other type membrane oxygenator within which oxygen, advantageously provided at a pressure greater than atmospheric, diffuses across the membrane(s) and into the blood to form oxygenated blood, again for delivery to a patient or other site. Advantageously, the oxygenated blood is delivered at a target pO2 greater than about 760 mm Hg and is delivered from the liquid-to-liquid oxygenation assembly or membrane oxygenator via a fluid conduit having an approximate pressure drop greater than the target pO2.
    • 16. 发明申请
    • METHODS AND APPARATUSES RELATED TO BLOOD ANALYTE MEASUREMENT SYSTEM
    • 与血液分析仪测量系统相关的方法和装置
    • US20100168535A1
    • 2010-07-01
    • US12714100
    • 2010-02-26
    • Mark Ries RobinsonWilliam R. PattersonRichard P. ThompsonShonn HendeeJames H. Macemon
    • Mark Ries RobinsonWilliam R. PattersonRichard P. ThompsonShonn HendeeJames H. Macemon
    • A61B5/00
    • A61B5/14532A61B5/15003A61B5/150221A61B5/150229A61B5/150236A61B5/150244A61B5/150389A61B5/150503A61B5/150755A61B5/150992A61B5/153A61M5/16831A61M2005/1404A61M2205/3306A61M2205/331A61M2230/201
    • The present invention relates to a blood analyte measurement system for the procurement of blood samples for measurement of blood properties such as analyte concentration or analyte presence. A blood access system can be coupled with a measurement system such as an electrochemical sensor, and can also be used with other measurement modalities. Embodiments of the present invention can facilitate accurate measurement of blood glucose by the clinician in a sterile manner. Embodiments of the present invention can also enable the calibration of the sensor at one or more calibration points. One desired analyte of measurement is glucose for the effective implementation of glycemic control protocols. Embodiments of the present invention can also be used for the measurement of other analytes such as arterial blood gases, lactate, hemoglobin, potassium and urea. Additionally, embodiments of the present invention can function effectively on a variety of blood access points and specifically enables glucose monitoring in an existing arterial line that is already in place for hemodynamic monitoring. The present invention does not consume a significant amount of blood. Some embodiments of the present invention can re-infuse the blood into the patient, which can facilitate operation of the system in a sterile manner.
    • 本发明涉及一种用于血液分析物测量系统,用于采血用于测量血液特性如分析物浓度或分析物存在。 血液存取系统可以与诸如电化学传感器的测量系统耦合,并且还可以与其它测量模式一起使用。 本发明的实施方案可以促进临床医生以无菌方式精确测量血糖。 本发明的实施例还可以实现在一个或多个校准点处的传感器的校准。 一个期望的测量分析物是用于有效实施血糖控制方案的葡萄糖。 本发明的实施方案也可用于测量其它分析物,例如动脉血气,乳酸,血红蛋白,钾和尿素。 此外,本发明的实施例可以有效地在各种血液接入点上起作用,并且具体地实现已经存在于用于血液动力学监测的现有动脉管线中的葡萄糖监测。 本发明不消耗大量的血液。 本发明的一些实施例可以将血液重新注入患者体内,这可以以无菌的方式促进系统的操作。