Method for controlling fluid flow in a rotational atherectomy device
AssigneeShturman Cardiology Systems, Inc.
InventorsLeonid Shturman, Georgy Morov, Vladimir Malgichev
Life of this patent
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Abstract
A method system and controller for controlling fluid flow in a rotational atherectomy device. A source of fluid is provided through a pump to the rotational atherectomy device, wherein the pump maintains the fluid flow at a minimal rate during a time period when a drive shaft of the device is not rotating. A first control is activated to increase a rate of the fluid flow and second control is activate to initiate a rotation of the drive shaft during another time period when the fluid flow is at the increased rate.
Claims13
1-87. (canceled)
A method for controlling fluid flow in a rotational atherectomy device comprising:
- providing a source of fluid through a pump to a drive shaft of the rotational atherectomy device, wherein the pump maintains the fluid flow at a preset rate during a time period when the drive shaft of the device is not rotating;
- activating a first control to increase a rate of the fluid flow without initiating rotation of the drive shaft;
- and
- activating a second control to initiate a rotation of the drive shaft during another time period when the fluid flow is maintained at the increased rate.
A method for controlling a flow of fluid in a rotational atherectomy device comprising the steps of:
- providing a source of fluid through a pump to the rotational atherectomy device, wherein a first flow of fluid is maintained through the system when the system is in an idle mode;
- activating a first control to initiate a second flow of fluid to the device;
- and
- activating a second control, wherein activation of the second control comprises the steps of:
- maintaining the second flow of fluid to the device;
- and
- initiating a rotation of a drive shaft of the device, wherein the second flow of fluid to the device is relatively independent of the rotation of the drive shaft.
A method for controlling fluid flow rate around a drive shaft of a rotational angioplasty device comprising:
- providing a fluid pump to pump a fluid around the drive shaft of the device and providing at least two controls, one of which is used to control the fluid pump and the other to control both the fluid pump and a rotation of the drive shaft of the device;
- activating a first control to increase fluid flow around the drive shaft without initiating rotation of the drive shaft;
- and
- activating a second control to initiate rotation of the drive shaft and to continue to pump fluid around the drive shaft of the device at an increased fluid flow rate.
Dependencies are inferred from the claim text.