US 12,263,066 B2
Apparatuses, systems and methods for perforating and aspirating inner ear
Aykut Aksit, New York, NY (US); Jeffrey W. Kysar, New York, NY (US); Anil K. Lalwani, New York, NY (US); and Daniel N. Arteaga, New York, NY (US)
Assigned to The Trustees of Columbia University in the City of New York, New York, NY (US)
Filed by The Trustees of Columbia University in the City of New York, New York, NY (US)
Filed on Oct. 19, 2020, as Appl. No. 17/074,134.
Application 17/074,134 is a continuation of application No. PCT/US2019/028368, filed on Apr. 19, 2019.
Claims priority of provisional application 62/660,046, filed on Apr. 19, 2018.
Prior Publication US 2021/0045925 A1, Feb. 18, 2021
Int. Cl. A61B 17/3205 (2006.01); A61B 17/34 (2006.01); A61F 11/20 (2022.01); A61B 17/00 (2006.01); A61B 17/32 (2006.01)
CPC A61F 11/202 (2022.01) [A61B 17/32053 (2013.01); A61B 17/3415 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/320064 (2013.01); A61B 2017/3454 (2013.01); A61B 2217/005 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for penetrating an anatomic membrane, comprising:
a tubular member including a proximal portion, a distal portion, and inner and outer surfaces defining a circumference around the tubular member,
a plurality of apices extending from a distal end of said tubular member and arranged around the circumference,
a plurality of valleys arranged around the circumference, wherein each valley adjoins neighboring apices, wherein the plurality of apices and the plurality of valleys define a plurality of serrated blades around the circumference and the plurality of apices and valleys define a circumferential crown shape,
wherein each of the valleys are configured to include an inside bevel disposed on the inner surface of said tubular member in which the face of the inside bevel is directed toward a central axis of the tubular member, and
the tubular member being configured to:
translate between a first position and a different second position upon entering a membrane, and
extract a portion of the membrane by engaging at least one apex of the plurality of apices with the membrane.