METHOD FOR OPERATING A SUPPLY DEVICE WHICH SUPPLIES A LIQUID TO A CHANNEL, AND SUPPLY DEVICE, HOLLOW CATHETER, AND CATHETER PUMP
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Abstract
The present invention relates to a supply device for a channel (8), in particular within a hollow catheter (1), and to a method for operating a supply device of this type that supplies a channel (8) with a liquid and has two pumps (10, 19) arranged at points of the channel distanced from one another, characterised in that the parameter values of at least one operating parameter of both pumps are coordinated with one another in a controlled manner. As a result of the method, interruption-free and precisely controllable operation is to be ensured with simple structural means, in particular in the case of use of wear-free diaphragm pumps.
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Citations
26 Claims
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1-9. -9. (canceled)
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10. A hollow catheter with a channel and with a supply device for supplying the channel with a liquid,
wherein the supply device comprises: -
a diaphragm pump; and a control device, which controls the diaphragm pump in respect of a generated pressure and/or a delivery rate; and wherein a sensor is assigned to the diaphragm pump, said sensor being a liquid pressure sensor, an electric sensor for detecting the power consumption of the diaphragm pump, or a flow rate sensor. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for operating a supply device that supplies a channel of a hollow catheter with a liquid, the supply device having at least one diaphragm pump with a sensor assigned thereto, the method comprising:
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using the sensor, detecting an operating parameter of the at least one diaphragm pump, the operating parameter being one or more of liquid pressure at one or more points in the channel, power consumption of the at least one diaphragm pump, or flow rate; calculating a generated pressure and/or delivery rate based on the operating parameter detected by the sensor; and controlling the at least one diaphragm pump according to the generated pressure and/or delivery rate.
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18. A method for operating a supply device that supplies a channel of a hollow catheter with a liquid and has at least two diaphragm pumps, arranged at points of the channel distanced from one another, the method comprising:
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detecting a value of an operating parameter for each of the diaphragm pumps, the operating parameter being one or more of liquid pressure at one or more points in the channel, power consumption, or flow rate; and controlling the parameter value of at least one operating parameter for each of the diaphragm pumps in a coordinated manner. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification