Inventor
PATTISON DOUGLAS M
US20 patents
Patents
20 patentsUS11786233B2Oct 17, 2023
Retention anchor with suture tie down for surgical access devices
COVIDIEN LP2 citations72
US11376037B2Jul 5, 2022
Surgical access device including dual lumen cannula for anchor inflation and deflation
COVIDIEN LP4 citations71
US12121261B2Oct 22, 2024
Surgical access device including anchor with ratchet mechanism
COVIDIEN LP0 citations62
US11844549B2Dec 19, 2023
Surgical access device including a universal fluid flow valve
COVIDIEN LP0 citations62
US11576701B2Feb 14, 2023
Surgical access assembly having a pump
COVIDIEN LP0 citations62
US12419665B2Sep 23, 2025
Surgical access device with rotatably actuated fixation mechanism
COVIDIEN LP0 citations61
US12232766B2Feb 25, 2025
Surgical access device including dual lumen cannula for anchor inflation and deflation
COVIDIEN LP0 citations61
US12121689B2Oct 22, 2024
Surgical access device having a hollow anchor
COVIDIEN LP0 citations61
US11672563B2Jun 13, 2023
Surgical access device with rotatably actuated fixation mechanism
COVIDIEN LP1 citations61
US11627989B2Apr 18, 2023
Protective sheath for use with a surgical instrument having an expandable body
COVIDIEN LP0 citations61
US11583315B2Feb 21, 2023
Surgical access device including variable length cannula
COVIDIEN LP0 citations61
US11484337B2Nov 1, 2022
Surgical access device including anchor with rachet mechanism
COVIDIEN LP1 citations61
US12349938B2Jul 8, 2025
Surgical access device including an anchor having a suture retention mechanism
COVIDIEN LP0 citations60
US11944348B2Apr 2, 2024
Surgical access device including an anchor having a suture retention mechanism
COVIDIEN LP1 citations60
US12268414B2Apr 8, 2025
Retention anchor for surgical access devices
COVIDIEN LP0 citations51
US11717321B2Aug 8, 2023
Access assembly with retention mechanism
COVIDIEN LP0 citations51
US11564708B2Jan 31, 2023
Cannula assembly including an adjustable elongate shaft assembly
COVIDIEN LP0 citations51
US11432846B2Sep 6, 2022
Surgical access device including alternating cutout fluid flow pathway for anchor inflation and deflation
COVIDIEN LP0 citations50
US12408944B2Sep 9, 2025
Cannula assembly including a suction cup seal
COVIDIEN LP0 citations49
US11540859B2Jan 3, 2023
Surgical access system including instrument retaining clip
COVIDIEN LP0 citations48