US 11,986,215 B2
Universal size multi-walled elastomer cannula depth limiter
Sajayesh Vijayachandran, Kannur (IN)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Mar. 26, 2021, as Appl. No. 17/213,409.
Claims priority of application No. 202011018668 (IN), filed on May 1, 2020.
Prior Publication US 2021/0338282 A1, Nov. 4, 2021
Int. Cl. A61B 17/34 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/3494 (2013.01) [A61B 17/3423 (2013.01); A61B 90/03 (2016.02); A61B 2090/036 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A depth limiter configured to couple with a first cannula tube of a first trocar having a first tube cross dimension, the depth limiter comprising:
(a) an outer frame portion; and
(b) an inner gripping portion housed within the outer frame portion, wherein the inner gripping portion includes a plurality of lobes flexible relative to each other between a relaxed configuration and at least one flexed configuration including a first flexed configuration,
wherein in the relaxed configuration the plurality of lobes collectively form a first effective cross dimension, wherein the first effective cross dimension is configured to be less than the first tube cross dimension,
wherein in the first flexed configuration the plurality of lobes collectively form a second effective cross dimension greater than the first effective cross dimension, wherein the second effective cross dimension is configured to be equal to the first tube cross dimension such that the second effective cross dimension is sized to restrict axial movement of the depth limiter relative to the first cannula tube of the first trocar,
wherein the outer frame portion comprises a proximal hub and a distal flange extending radially outwardly from the proximal hub relative to a central axis of the depth limiter, wherein the distal flange defines a distalmost and radially outermost portion of the depth limiter.