US 12,239,492 B2
Devices, systems, and methods facilitating access to and mapping of target tissue
Calin Druma, San Jose, CA (US)
Assigned to Medtronic Holding Company Sárl, Tolochenaz (CH)
Filed by Medtronic Holding Company Sárl, Tolochenaz (CH)
Filed on Dec. 2, 2021, as Appl. No. 17/540,994.
Claims priority of provisional application 63/137,465, filed on Jan. 14, 2021.
Prior Publication US 2022/0218434 A1, Jul. 14, 2022
Int. Cl. A61B 17/34 (2006.01); A61B 18/00 (2006.01); A61B 90/00 (2016.01); A61B 17/00 (2006.01)
CPC A61B 90/06 (2016.02) [A61B 17/3423 (2013.01); A61B 18/00 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/3454 (2013.01); A61B 2018/00577 (2013.01); A61B 2090/062 (2016.02)] 18 Claims
OG exemplary drawing
 
1. A surgical access system, comprising:
a cannula including a proximal base and an elongated cannula body extending distally from the proximal base;
a mapping spacer configured to releasably engage the proximal base of the cannula, the mapping spacer including first and second uprights defining a slot therebetween; and
a trocar including a proximal handle and an elongated trocar body extending distally from the proximal handle to a distal cutting tip, the elongated trocar body configured for insertion through the mapping spacer and the cannula such that the distal cutting tip extends distally from the elongated cannula body,
wherein, in a first orientation of the trocar relative to the mapping spacer, the proximal handle is configured to abut the first and second uprights to inhibit extension of the distal cutting tip from the proximal base beyond an initial position, and
wherein, in a second orientation of the trocar relative to the mapping spacer, the proximal handle is configured to slide through the slot of the mapping spacer to enable extension of the distal cutting tip distally from the initial position towards an extended position.