US 12,257,187 B2
Suction cup design for capsulotomy device
Christopher Guild Keller, El Cerrito, CA (US); and David Wong Manhin Sretavan, Tiburon, CA (US)
Assigned to Centricity Vision, Inc., Carlsbad, CA (US)
Filed by Centricity Vision, Inc., Carlsbad, CA (US)
Filed on Jul. 11, 2023, as Appl. No. 18/350,669.
Application 18/350,669 is a continuation of application No. 17/112,759, filed on Dec. 4, 2020, granted, now 11,737,918.
Claims priority of provisional application 63/078,128, filed on Sep. 14, 2020.
Prior Publication US 2023/0381019 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 9/007 (2006.01)
CPC A61F 9/00754 (2013.01) [A61B 2217/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for excising tissue, the device comprising:
a suction cup forming a tapered suction chamber comprising a first taper that tapers from a perimeter of the suction chamber at a first height to a center of the suction chamber at a second height less than the first height, enabling a suction force to be applied against the tissue in a first direction, and wherein the suction cup comprises a second taper that tapers continuously from the first height at the perimeter of the suction chamber at a proximal end of the suction cup around a circumference of the suction cup to a third height at a distal end of the suction cup, the third height less than the first height and greater than the second height;
a stem coupled to the proximal end of the suction cup; and
a cutting element coupled to the suction cup and configured to excise a tissue.