Patent ID: 11931056
Assignee: GYRUS ACMI, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. A method of operating an endoscopic sinus surgery device having a hub assembly, a lever coupled with the hub assembly, a shaver blade assembly, and an outer sheath coupled with the lever and partially disposed about the shaver blade assembly, the method comprising:
orienting the endoscopic device in a first configuration, where the shaver blade assembly includes an outer shaft having a distal end and an outer shaft stop, where an outer blade of the shaver blade assembly is disposed at the outer shaft distal end and an inner blade is disposed within the outer blade and configured to rotate with respect to the outer blade, and the outer sheath including a surgical elevator having a surgical elevator edge where the surgical elevator edge abuts the outer shaft stop in the first configuration such that the shaver assembly is configured for tissue resection and the distal end of the outer shaft extends further than the surgical elevator edge;
providing an irrigant to the shaver blade assembly, where the outer sheath includes a hypotube having an access hole that aligns with an access hole of the outer shaft in the first configuration such that irrigant is provided to the shaver blade assembly via the hypotube access hole and the outer shaft access hole when the endoscopic sinus surgery device is in the first configuration;
orienting the endoscopic device in a second configuration, where the surgical elevator edge is spaced apart from the outer shaft stop thereby defining a surgical elevator window where the surgical elevator is configured for tissue resection and the hypotube access hole aligns with the surgical elevator window in the second configuration;
providing the irrigant to the surgical elevator window via the hypotube access hole, wherein providing the irrigant through the hypotube access hole and into the surgical elevator window creates a lavage effect.