公开(公告)号：US4416658A

公开(公告)日：1983-11-22

申请号：US314027

申请日：1981-10-22

申请人： Masaaki Numazawa ,  Hidetaka Tashiro ,  Shuichi Ishii

发明人： Masaaki Numazawa ,  Hidetaka Tashiro ,  Shuichi Ishii

IPC分类号： A61B18/00 ,  A61M1/00 ,  A61M31/00

CPC分类号： A61M1/0041 ,  A61B2018/00934 ,  Y10S604/902

摘要： A blood suction device for removing blood from a surgical field is provided which can be controlled by a pressure sensing means mounted on a suction tip of the device for starting and stopping the roller pump of the device, and changing the revolution rate of the roller pump, thus enabling to reduce possible hemolysis, clothing and other undesirable effects. The blood suction device comprises pressure sensing means for detecting the pressure exerted thereupon which can be handled adjacent the suction tip by means of pneumatic pressure, and control means for controlling the revolution rate in response to the sensed pressure. The revolution rate when the device is not gripped or pushed by the operator may be set either at zero revolution or at any desired revolution.

摘要翻译： 提供了一种用于从外科手术场去除血液的血液抽吸装置，其可以由安装在装置的吸入端上的压力感测装置来控制，用于启动和停止装置的滚子泵，并且改变滚子泵的转速 ，从而能够减少可能的溶血，衣服和其它不期望的影响。 吸血装置包括压力检测装置，用于检测施加在其上的压力，其可以通过气动压力与吸嘴相邻处理;以及控制装置，用于响应于感测的压力来控制转速。 当设备未被操作者抓住或推动时的转速可以设定在零回转或任何期望的转速。

公开(公告)号：US4598697A

公开(公告)日：1986-07-08

申请号：US659095

申请日：1984-10-09

申请人： Masaaki Numazawa ,  Hidetaka Tashiro

发明人： Masaaki Numazawa ,  Hidetaka Tashiro

IPC分类号： F04C5/00 ,  A61M1/10 ,  A61M1/00

CPC分类号： A61M1/1086 ,  A61M1/1005 ,  A61M1/1039 ,  A61M1/1037 ,  A61M2230/04

摘要： There is provided a blood pump apparatus which can supply a pulsating flow of the blood to a body of a patient at a desired rate of flow. R waves are detected from an output of an electrocardiograph to produce a timing signal which is used for controlling timing of intermittent actuation of a motor of a blood pump such as a roller-type pump. A rotation speed of the motor required to obtain the desired flow rate of the blood is automatically calculated in accordance with data inputted by an operator, the data including discharge of the pump per a predetermined revolution of the motor, delay time to be lapsed before an actuation of the motor, duration of the actuation of the motor, and amount of the blood to be fed per a unit period of time. The motor is then controlled to rotate at the calculated speed at the intervals synchronized with the detected R waves. The rotation speed of the motor can be controlled accurately by correcting the calculated rotation speed of the motor in accordance with a detected number of revolution of the motor. The timing of each actuation of the motor can also be controlled so that the pump is driven at intervals synchronized with timing signals generated by a pulse generator.

摘要翻译： 提供了一种血泵装置，其能够以期望的流量将血液的脉动流提供给患者的身体。 从心电图仪的输出检测R波，以产生定时信号，该定时信号用于控制诸如辊式泵之类的血泵的马达间歇致动的定时。 根据操作人员输入的数据，自动计算获得所需血液流量所需的电动机的转速，该数据包括按照电动机的预定转速排出泵的数据，在 马达的致动，马达的致动持续时间，以及每单位时间段内要供给的血液量。 然后控制电机以与所检测到的R波同步的间隔以所计算的速度旋转。 通过根据检测到的电动机的转数修正电动机的转速，可以精确地控制电动机的转速。 也可以控制电动机的每个致动的时间，使得泵以与由脉冲发生器产生的定时信号同步的间隔被驱动。