Real time bur chatter compensation in surgical cutting burs
AssigneeStryker Corporation
InventorMichael Laubenthal
Life of this patent
Estimating the term…
Abstract
A surgical console system configured to provide a drive signal to a surgical instrument for rotating a surgical bur. The surgical console system may supply a first drive signal to the surgical instrument to rotate the bur at a desired speed and to determine an electrical current drawn by the surgical instrument based on the drive signal. The surgical console system may be further configured to identify a chatter event based on the electrical current, and to supply a second drive signal to the surgical instrument based on the identified chatter event.
Claims20
A surgical console system configured to provide a drive signal to a surgical instrument comprising a rotatable bur configured to contact a tissue surface, the surgical console system comprising:
- a processor and a memory, the memory storing instructions executable by the processor to:
- supply a first drive signal to the surgical instrument to rotate the bur at a rotational speed;
- determine an electrical current drawn by the surgical instrument based on the drive signal;
- identify a chatter event based on the electrical current, wherein the chatter event is characterized by undesirable vibration of the bur during contact between the tissue surface and the bur;
- and
- supply a second drive signal to the surgical instrument based on an identified chatter event.
A surgical bur system capable of rotating a surgical bur at a speed of at least 5,000 RPM, the surgical bur system comprising:
- a handheld surgical instrument comprising:
- a body;
- a motor disposed in the body;
- a surgical bur coupled to the motor and configured to rotate relative to the body and contact a tissue surface;
- a console in communication with the handheld surgical instrument and configured to provide a drive signal to the motor, the console comprising:
- a processor and a memory, the memory storing instructions executable by the processor to:
- supply a first drive signal to the handheld surgical instrument to rotate the surgical bur at a rotational speed;
- determine an electrical current drawn by the handheld surgical instrument based on the drive signal;
- identify a chatter event based on the electrical current, wherein the chatter event is characterized by undesirable vibration of the bur during contact between the tissue surface and the bur;
- and
- supply a second drive signal to the handheld surgical instrument based on an identified chatter event.
Dependencies are inferred from the claim text.