Methods and systems for controlling aspiration flow rate
AssigneeAlcon Inc.
InventorRaphael Gordon
Life of this patent
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Abstract
Certain aspects of the present disclosure provide a surgical system comprising a pump motor configured to couple to a pump for pumping material through a probe, wherein the probe is connected to the pump through a connector. The surgical system also comprises a control module configured to determine a real-time flow rate through the probe and adjust a current pump rate of the pump to achieve a target flow rate, wherein the current pump rate is adjusted based on the real-time flow rate.
Claims20
A surgical system comprising:
- a pump motor configured to couple to a pump for pumping material through a probe, wherein the probe is connected to the pump through a connector;
- and
- a control module configured to:
- initiate operation of the pump at an initial pump rate;
- determine a real-time inlet vacuum pressure associated with the pump;
- determine a real-time pump efficiency of the pump based on the real-time inlet vacuum pressure;
- determine a real-time flow rate through the probe based on a function of the initial pump rate, the real-time pump efficiency of the pump, and a volume per rotation of the pump;
- and
- adjust the initial pump rate of the pump to achieve a target flow rate,
- wherein the initial pump rate is adjusted based on the real-time flow rate.
A method of operating a pump, performed by a surgical system, for pumping material through a probe, comprising:
- receiving a signal from an initiation element to initiate operation of the pump at an initial pump rate for pumping the material through the probe, wherein the probe is connected to the pump through a connector;
- operating the pump at the initial pump rate;
- determining a real-time inlet vacuum pressure associated with the pump;
- determining a real-time pump efficiency of the pump based on the real-time inlet vacuum pressure;
- determining a real-time flow rate through the probe based on a function of the initial pump rate, the real-time pump efficiency of the pump, and a volume per rotation of the pump;
- and
- adjusting the initial pump rate of the pump to achieve a target flow rate, wherein the initial pump rate is adjusted based on the real-time flow rate.
A non-transitory computer readable medium having instructions stored thereon that, when executed by a surgical system, cause the surgical system to perform a method comprising:
- receiving a signal from an initiation element to initiate operation of a pump at an initial pump rate for pumping material through a probe, wherein the probe is connected to the pump through a connector;
- operating the pump at the initial pump rate;
- determining a real-time inlet vacuum pressure associated with the pump;
- determining a real-time pump efficiency of the pump based on the real-time inlet vacuum pressure;
- determining a real-time flow rate through the probe based on a function of the initial pump rate, the real-time pump efficiency of the pump, and a volume per rotation of the pump;
- and
- adjusting the initial pump rate of the pump to achieve a target flow rate, wherein the initial pump rate is adjusted based on the real-time flow rate.
Dependencies are inferred from the claim text.