Pressure infusion device
First Claim
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1. A pressure infusion device for squeezing out a syringe, comprising:
- a holder for supporting the syringe,an advance means for squeezing out the syringe,a path sensor for detecting the position of the advance means over the total range of motion of the advance means and for generating a signal in response thereto,control means responsive to the path sensor signal for controlling movement of the advance means in response to a prestored program or to external measuring data,input means for inputting into the control means an empty state signal corresponding to the signal generated by the path sensor when the syringe is fully squeezed out, andalarm means for releasing an alarm when the advance means reaches an alarm position, the alarm position being in advance of the empty state position of the syringe.
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Abstract
A pressure infusion device for squeezing out a syringe having an absolute path sensor connected to the movable holder and supplying position data of the position of the syringe rod to a control means. Based on the position data, a motor is controlled so that a desired infusion rate is maintained. The infusion rate may be programmed to vary during an infusion process. Shortly before the empty-state position is reached, an early alarm is released, while, in reaching the empty-state position, the drive is turned off.
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Citations
11 Claims
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1. A pressure infusion device for squeezing out a syringe, comprising:
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a holder for supporting the syringe, an advance means for squeezing out the syringe, a path sensor for detecting the position of the advance means over the total range of motion of the advance means and for generating a signal in response thereto, control means responsive to the path sensor signal for controlling movement of the advance means in response to a prestored program or to external measuring data, input means for inputting into the control means an empty state signal corresponding to the signal generated by the path sensor when the syringe is fully squeezed out, and alarm means for releasing an alarm when the advance means reaches an alarm position, the alarm position being in advance of the empty state position of the syringe. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11)
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6. A pressure infusion device as defined in claim 6, further comprising:
display means for indicating the volume of liquid squeezed out of the syringe.
Specification