US 12,138,130 B2
Surgical cannulas and related systems and methods of identifying surgical cannulas
Brandon R. Garbus, Santa Clara, CA (US); Allen C. Thompson, Los Altos, CA (US); and Justin Krom, Southington, CT (US)
Assigned to INTUITIVE SURGICAL OPERATIONS, INC., Sunnyvale, CA (US)
Filed by INTUITIVE SURGICAL OPERATIONS, INC., Sunnyvale, CA (US)
Filed on Jun. 23, 2023, as Appl. No. 18/340,227.
Application 18/340,227 is a continuation of application No. 17/472,827, filed on Sep. 13, 2021, granted, now 11,707,343.
Application 17/472,827 is a continuation of application No. 16/871,805, filed on May 11, 2020, granted, now 11,116,601, issued on Sep. 14, 2021.
Application 16/871,805 is a continuation of application No. 16/221,994, filed on Dec. 17, 2018, granted, now 10,682,205, issued on Jun. 16, 2020.
Application 16/221,994 is a continuation of application No. 15/126,903, granted, now 10,172,687, issued on Jan. 8, 2019, previously published as PCT/US2015/020913, filed on Mar. 17, 2015.
Claims priority of provisional application 61/954,318, filed on Mar. 17, 2014.
Prior Publication US 2023/0329836 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06K 19/06 (2006.01); A61B 17/34 (2006.01); A61B 34/00 (2016.01); A61B 34/30 (2016.01); A61B 34/35 (2016.01); A61B 46/10 (2016.01); A61B 90/98 (2016.01); G06K 7/08 (2006.01); A61B 17/00 (2006.01); A61B 90/90 (2016.01)
CPC A61B 90/98 (2016.02) [A61B 17/3403 (2013.01); A61B 17/3476 (2013.01); A61B 34/25 (2016.02); A61B 34/30 (2016.02); A61B 34/35 (2016.02); A61B 46/10 (2016.02); G06K 7/084 (2013.01); A61B 2017/00039 (2013.01); A61B 2017/00876 (2013.01); A61B 17/3421 (2013.01); A61B 90/90 (2016.02)] 14 Claims
OG exemplary drawing
 
1. A cannula for insertion of a medical instrument, the cannula comprising:
a tube portion; and
an attachment portion coupled to the tube portion and insertable into a receptacle of a cannula mount to mount the cannula in a position to permit removable insertion of the medical instrument through the tube portion; and
one or more magnets arranged at the attachment portion and configured to encode identifying information of the cannula,
wherein the attachment portion comprises a plurality of encoding positions that each indicate part of the identifying information; and
wherein for each encoding position of the plurality of encoding positions, absence of one of the one or more magnets at the respective encoding position indicates a first value, presence of one of the one of the magnets with a first orientation at the respective encoding position indicates a second value, and presence of one of the one of the magnets with a second orientation at the respective encoding position indicates a third value.