Hamid S K, Wong P K, Carmichael F, White K, Asbury A J
University Department of Anaesthesia, Western Infirmary, Glasgow.
Anaesthesia. 1996 Feb;51(2):145-50. doi: 10.1111/j.1365-2044.1996.tb07702.x.
The Baxter Intermate LV250 infusor is a large capacity, high flow mechanical infusor, designed to deliver viscous solutions and suspensions. The objective of the laboratory study was to evaluate the LV250 infusor when used with either 0.9% sodium chloride solution or an emulsion, propofol 1%. Following this, the LV250 infusor with the patient-control module was assessed in the clinical setting as to its suitability for use in patient-controlled sedation with a propofol and lignocaine mixture. Between reservoir volumes of 250 and 55 ml, the LV250 infusor was found to infuse a propofol 1% and lignocaine mixture at a lower flow compared with the sodium chloride solution, 170 ml.h-1 and 260 ml.h-1 respectively. The lower flow with the propofol mixture may be a result of its higher viscosity. All patients using the LV250 infusor for patient-controlled sedation found it easy to use and stated that they were able to achieve their desired level of sedation. All patients maintained arterial oxygen saturations above 95%. The LV250 infusor performed reliably and with little inter-device variation, and with the patient-control module could be used as an alternative to electronic devices for providing patient-controlled sedation. Compared with electronic infusors, its advantages include compactness and simplicity of design.
百特Intermate LV250输液泵是一种大容量、高流量的机械输液泵，设计用于输注粘性溶液和混悬液。该实验室研究的目的是评估LV250输液泵在与0.9%氯化钠溶液或1%丙泊酚乳剂一起使用时的情况。在此之后，对配备患者自控模块的LV250输液泵在临床环境中用于丙泊酚和利多卡因混合液的患者自控镇静的适用性进行了评估。在储液量为250至55毫升之间时，发现LV250输液泵输注1%丙泊酚和利多卡因混合液的流速低于氯化钠溶液，分别为170毫升/小时和260毫升/小时。丙泊酚混合液流速较低可能是因其粘度较高所致。所有使用LV250输液泵进行患者自控镇静的患者都觉得它易于使用，并表示能够达到他们期望的镇静水平。所有患者的动脉血氧饱和度均维持在95%以上。LV250输液泵性能可靠，设备间差异很小，并且配备患者自控模块后可作为电子设备的替代方案用于提供患者自控镇静。与电子输液泵相比，其优点包括设计紧凑和简单。
