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公开(公告)号：US5788631A
公开(公告)日：1998-08-04
申请号：US608714
申请日：1996-02-29
CPC分类号： A61B5/14542 , A61B5/14539 , A61M25/10 , A61M25/1011 , A61M2025/0177 , A61M2025/1061
摘要： Ischemia in a hollow internal organ can be detected in its incipient stages by obtaining a CO.sub.2 sample from within the organ of interest, measuring the partial pressure of CO.sub.2 sample, measuring the bicarbonate concentration of an arterial blood sample, and on the basis of these two measurements calculating the pH of the wall of the organ. The value of the pH is an indicator of the onset of ischemia in the organ. The CO.sub.2 sample is obtained by a novel catheter, multiple embodiments of which are disclosed. Also disclosed is a method for determining the vitality or adequacy of oxygenation of the whole body, or a solid internal organ, by the measurement of the pH of venous blood.
摘要翻译： 通过从感兴趣的器官内获得二氧化碳样本，测量二氧化碳样本的分压，测量动脉血样品的碳酸氢盐浓度，并在这两个基础上，可以在初期阶段检测中空内脏器官缺血 测量器官壁的pH值。 pH值是器官缺血发作的指标。 通过新型导管获得二氧化碳样品，其多个实施方案被公开。 还公开了通过测量静脉血的pH来确定全身或固体内脏器官的氧合活力或充足性的方法。
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公开(公告)号：US06334064B1
公开(公告)日：2001-12-25
申请号：US08452183
申请日：1995-05-26
IPC分类号： A61B500
CPC分类号： A61B5/14542 , A61B5/14539 , A61B5/1459 , A61B5/1473 , A61B5/6853 , A61M25/10 , A61M2025/1061
摘要： A tonometric device for use in hollow viscus tonometry and remote sensing of patient fluid parameters is disclosed in combination with a secondary apparatus, such as a urinary catheter, a nasogastric sump apparatus, or a feeding tube, for example. The device is capable of monitoring certain critical fluid properties of interest, such as oxygen gases and carbon dioxide gases in the wall tissue itself of the patient's organ, rather than monitoring such properties in a lumen of the organ. A walled sampling chamber, which is preferably an inflated balloon member, is provided on an elongated tube, with provisions for positioning the sampling chamber in direct contact with a wall portion of the patient's internal organ.
摘要翻译： 本发明公开了一种用于中空粘度眼压测量和远程感测患者流体参数的测量装置，其与例如尿导管，鼻胃槽装置或进料管的辅助装置组合。 该装置能够监测感兴趣的某些临界流体性质，例如患者器官的壁组织本身中的氧气和二氧化碳气体，而不是监测器官的内腔中的这些特性。 优选为膨胀的气囊构件的壁式采样室设置在细长管上，其具有将采样室定位成与患者内脏的壁部直接接触的装置。
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公开(公告)号：US6010453A
公开(公告)日：2000-01-04
申请号：US440523
申请日：1995-05-12
CPC分类号： A61B5/145 , A61B5/14539 , A61B5/14542 , A61B5/1459 , A61B5/1473 , A61B5/6853 , A61M25/10 , A61M25/1011 , A61M2025/0177 , A61M2025/1061
摘要： A tonometric device for use in hollow viscus tonometry and remote sensing of patient fluid parameters is disclosed. The device is capable of monitoring certain critical fluid properties of interest, such as oxygen gases and carbon dioxide gases in the wall tissue itself of the patient's organ, rather than monitoring such properties in a lumen of the organ. A walled sampling chamber, which is preferably an inflated balloon member, is provided on an elongated tube, with provisions for positioning the sampling chamber in direct contact with a wall portion of the patient's internal organ.
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