US 11,944,346 B2
Optical trocar assembly
Rajat R. Rokde, Pune (IN)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on May 11, 2020, as Appl. No. 16/871,183.
Application 16/871,183 is a continuation of application No. 16/167,625, filed on Oct. 23, 2018, granted, now 10,736,659.
Prior Publication US 2020/0268411 A1, Aug. 27, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/34 (2006.01); A61B 1/00 (2006.01); A61B 1/06 (2006.01); A61B 1/07 (2006.01); A61B 17/00 (2006.01); A61B 17/02 (2006.01); A61B 90/30 (2016.01)
CPC A61B 17/3423 (2013.01) [A61B 1/00032 (2013.01); A61B 1/00167 (2013.01); A61B 1/0607 (2013.01); A61B 1/0684 (2013.01); A61B 1/07 (2013.01); A61B 17/0218 (2013.01); A61B 17/3421 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/00907 (2013.01); A61B 2017/3454 (2013.01); A61B 2090/309 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A cannula assembly configured to receive a surgical instrument therethrough, the cannula assembly comprising:
an elongated body portion;
a housing coupled to a proximal end portion of the elongated body portion, the housing defining a longitudinally-extending channel therethrough dimensioned for passage of the surgical instrument;
a light pipe having a proximal end portion received within and attached to the housing, the light pipe extending distally from the housing and disposed in a lumen of the elongated body portion; and
an annular-shaped light member at least partially encircling the channel.