US 12,343,072 B2
Methods and devices for access across adjacent tissue layers
Peter S. Brown, Palo Alto, CA (US); Sith Khoune, Fremont, CA (US); Keke Lepulu, Menlo Park, CA (US); Ryan R. Donovan, Santa Clara, CA (US); and Kenneth F. Binmoeller, San Francisco, CA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Aug. 17, 2022, as Appl. No. 17/820,489.
Application 17/820,489 is a continuation of application No. 16/919,883, filed on Jul. 2, 2020, granted, now 11,432,873.
Application 16/919,883 is a continuation of application No. 15/147,731, filed on May 5, 2016, granted, now 10,729,492, issued on Aug. 4, 2020.
Application 15/147,731 is a continuation of application No. 13/871,978, filed on Apr. 26, 2013, granted, now 9,381,041, issued on Jul. 5, 2016.
Claims priority of provisional application 61/767,577, filed on Feb. 21, 2013.
Claims priority of provisional application 61/727,629, filed on Nov. 16, 2012.
Claims priority of provisional application 61/648,544, filed on May 17, 2012.
Prior Publication US 2023/0095107 A1, Mar. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 17/11 (2006.01); A61B 17/32 (2006.01); A61B 17/34 (2006.01); A61B 18/12 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 17/1114 (2013.01); A61B 17/320016 (2013.01); A61B 17/3476 (2013.01); A61B 17/3478 (2013.01); A61B 18/1206 (2013.01); A61B 2017/00278 (2013.01); A61B 2017/3425 (2013.01); A61B 2017/3454 (2013.01); A61B 2017/346 (2013.01); A61B 2018/00345 (2013.01); A61B 2018/00494 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/1407 (2013.01); A61B 2018/1412 (2013.01); A61B 2018/1425 (2013.01); A61B 2018/144 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A distal tip for a catheter, comprising:
a conically shaped tip having a proximal end having a first diameter, a distal end having a second diameter, and a lumen extending therethrough, wherein the first diameter is greater than the second diameter;
a distal tip base disposed on the proximal end of the conically shaped tip, the lumen extending through the distal tip base; and
a conductive cutting member coupled to the distal end of the conically shaped tip, the conductive cutting member comprises a forward facing cutting feature oriented perpendicular to a longitudinal axis of the distal tip and at least one outward projecting cutting feature,
wherein the forward facing cutting feature is disposed on the distal end of the conically shaped tip and comprises an arced configuration and has a diameter smaller than the second diameter and larger than a diameter of the lumen, and
wherein the outward projecting cutting feature extends from the forward facing cutting feature along at least a portion of the conically shaped tip in a proximal direction and extends away from the forward facing cutting feature as the outward projecting cutting feature extends proximally.