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US 10,293,099 B2Granted
Pump and means for controlling a pump
AssigneeStryker Corporation
InventorBrady L. Woolford
Life of this patent
Estimating the term…
Abstract
A pump with a controller for adjusting head pressure using a pressure boost is provided. The pressure boost may be dynamically adjusted during a surgical procedure based on the device being used and inflow and/or outflow settings.
Claims16
A method of controlling a pump to adjust pressure at a surgical site, the method comprising:
- providing a pump for motivating a flow of fluid to a surgical site;
- providing a pump controller which has the capability of receiving flow information and causing the pump to provide a pressure boost;
- providing a surgical device in communication with the pump controller;
- providing a set head pressure which is communicated to the pump controller;
- activating the surgical device;
- wherein the pump controller executes the following steps:
- (a) receiving information from the surgical device in communication with the pump controller;
- (b) using the information provided by the surgical device to determine a desired surgical site pressure and a surgical site fluid flow rate, and using the desired surgical site pressure and surgical site fluid flow rate to determine whether a pressure boost is needed to be added to or subtracted from the set head pressure to result in an appropriate pressure at the surgical site;
- (c) if a pressure boost is needed, calculating the amount of pressure boost needed by using the information provided by the surgical device;
- (d) adjusting the pump flow to a level at which the amount of pressure boost needed is achieved.
7 more elements
A method of controlling a pump to adjust pressure at a surgical site, the method comprising:
- providing a pump for motivating fluid to a surgical site;
- providing a pump controller which has the capability of causing the pump to provide a pressure boost;
- providing a surgical device in communication with the pump controller;
- providing a set head pressure which is communicated to the pump controller;
- providing a set trigger boost flow rate which is communicated to the pump controller;
- the pump controller determining if the surgical device is activated;
- if the surgical device is activated, the pump controller determining whether a pressure boost is currently being delivered and whether the site is in an overpressure state;
- if the surgical device is activated, a pressure boost is currently being delivered and the site is in an overpressure state, the pump controller determining if a pressure boost is needed based at least on the current head pressure in relation to the desired head pressure;
- if at least one of the surgical device is activated, a pressure boost is currently being delivered, and the site is in an overpressure state is not true, the pump controller determining if a pressure boost is needed based at least on the current head pressure in relation to the desired head pressure and a prior flow rate in relation to the current flow rate;
- once it is determined whether a pressure boost is needed, the pump controller calculating the needed pressure boost by using the information provided by the surgical device and whether the system is in an Inflow/Outflow mode;
- the pump controller adjusting the pump flow rate to a level at which the amount of pressure boost needed is achieved,
- wherein the pump has a manufacturer, and the information provided by the surgical device includes whether the surgical device is manufactured by the pump manufacturer.
9 more elements
A method of controlling a pump to adjust pressure at a surgical site, the method comprising:
- providing a pump for motivating fluid to a surgical site;
- providing a pump controller which has the capability of causing the pump to provide a pressure boost;
- providing a surgical device in communication with the pump controller;
- providing a set head pressure which is communicated to the pump controller;
- providing a set trigger boost flow rate which is communicated to the pump controller;
- the pump controller determining if the surgical device is activated;
- if the surgical device is activated, the pump controller determining whether a pressure boost is currently being delivered and whether the site is in an overpressure state;
- if the surgical device is activated, a pressure boost is currently being delivered and the site is in an overpressure state, the pump controller determining if a pressure boost is needed based at least on the current head pressure in relation to the desired head pressure;
- if at least one of the surgical device is activated, a pressure boost is currently being delivered, and the site is in an overpressure state is not true, the pump controller determining if a pressure boost is needed based at least on the current head pressure in relation to the desired head pressure and a prior flow rate in relation to the current flow rate;
- once it is determined whether a pressure boost is needed, the pump controller calculating the needed pressure boost by using the information provided by the surgical device and whether the system is in an Inflow/Outflow mode;
- the pump controller adjusting the pump flow rate to a level at which the amount of pressure boost needed is achieved,
- wherein the pump controller increments a boost counter until the boost counter reaches a predetermined boost counter limit, at which time the boost is turned on.
9 more elements
Dependencies are inferred from the claim text.