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US 12,370,329 B2Granted
Systems and methods for measuring and controlling pressure within an internal body cavity
AssigneeCovidien LP
InventorJason S. Minahan
Life of this patent
Estimating the term…
Abstract
A system includes an endoscope configured for insertion into an internal body cavity and a fluid management system. The fluid management system includes a pump configured to pump fluid through the endoscope into the internal body cavity and a controller configured to determine a pressure within the internal body cavity based upon a current feedback signal received from the pump. A method includes supplying a drive signal to a pump to pump fluid into an internal body cavity, receiving a current feedback signal from the pump, and determining a pressure within the internal body cavity based on the current feedback signal.
Claims20
A surgical system, comprising:
- an endoscope configured for insertion into a uterus;
- a pump configured to pump fluid from a fluid source to the endoscope for delivery of the fluid into the uterus;
- a motor configured to drive the pump;
- and
- a controller configured to provide a drive signal to the motor to drive the pump for pumping the fluid into the uterus via the endoscope, the controller including:
- a processor, and
- a memory storing instructions which, when executed by the processor, cause the controller to:
- receive a first feedback signal generated by the motor in response to the drive signal provided to the motor, the first feedback signal indicative of a current applied to the motor that is proportional to a torque generated by the motor in response to the current applied to the motor, wherein the torque generated by the motor is, in turn, proportional to a pressure of the fluid pumped into the uterus via the endoscope;
- and
- receive a second feedback signal generated by the motor in response to the drive signal provided to the motor, wherein the controller is configured, in response to the second feedback signal, to adjust the drive signal provided to the motor to control pumping of the fluid into the uterus via the endoscope, thereby regulating a pressure of the fluid within the uterus.
7 more elements
A fluid management system, comprising:
- a pump configured to pump fluid from a fluid source to an endoscope for delivery of the fluid into a uterus;
- a motor configured to drive the pump;
- and
- a controller configured to provide a drive signal to the motor to drive the pump for pumping the fluid into the uterus via the endoscope, the controller including:
- a processor;
- and
- a memory storing instructions which, when executed by the processor, cause the controller to:
- receive a first feedback signal generated by the motor in response to the drive signal provided to the motor, the first feedback signal indicative of a current applied to the motor that is proportional to a torque generated by the motor in response to the current applied to the motor, wherein the torque generated by the motor is, in turn, proportional to a pressure of the fluid pumped into the uterus via the endoscope;
- and
- receive a second feedback signal generated by the motor in response to the drive signal provided to the motor, wherein the controller is configured, in response to the second feedback signal, to adjust the drive signal provided to the motor to control pumping of the fluid into the uterus via the endoscope, thereby regulating a pressure of the fluid within the uterus.
7 more elements
A surgical system, comprising:
- a pump configured to pump fluid into a uterus via an endoscope;
- a motor configured to drive the pump;
- and
- a controller configured to provide a drive signal to the motor to drive the pump for pumping the fluid into the uterus via the endoscope, the controller including:
- a processor;
- and
- a memory storing instructions which, when executed by the processor, cause the controller to:
- receive a first feedback signal generated by the motor in response to the drive signal provided to the motor, the first feedback signal indicative of a current applied to the motor that is proportional to a torque generated by the motor in response to the current applied to the motor, wherein the torque generated by the motor is, in turn, proportional to a pressure of the fluid pumped into the uterus via the endoscope;
- and
- receive a second feedback signal generated by the motor in response to the drive signal provided to the motor, wherein the controller is configured, in response to the second feedback signal, to adjust the drive signal provided to the motor to control pumping of the fluid into the uterus via the endoscope, thereby regulating a pressure of the fluid within the uterus.
7 more elements
Dependencies are inferred from the claim text.