US 11,730,512 B2
Locking assembly for medical device
Sumit Malik, Haryana (IN); and Salman Kapadia, Madhya Pradesh (IN)
Assigned to Boston Scientific Limited, St. Michael (BB)
Filed by Boston Scientific Limited, St. Michael (BB)
Filed on Oct. 12, 2018, as Appl. No. 16/159,228.
Claims priority of provisional application 62/571,685, filed on Oct. 12, 2017.
Prior Publication US 2019/0110810 A1, Apr. 18, 2019
Int. Cl. A61B 17/32 (2006.01); A61B 17/34 (2006.01); A61B 90/00 (2016.01); A61B 17/22 (2006.01); A61M 39/10 (2006.01); A61B 17/00 (2006.01); A61M 25/09 (2006.01); A61B 10/02 (2006.01); A61M 25/06 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01); A61B 1/313 (2006.01)
CPC A61B 17/3403 (2013.01) [A61B 17/22 (2013.01); A61B 17/3417 (2013.01); A61B 17/3421 (2013.01); A61B 90/03 (2016.02); A61M 39/1011 (2013.01); A61B 1/313 (2013.01); A61B 10/0275 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/347 (2013.01); A61B 2090/034 (2016.02); A61B 2090/035 (2016.02); A61M 25/0102 (2013.01); A61M 25/0606 (2013.01); A61M 2025/0063 (2013.01); A61M 2025/09125 (2013.01); A61M 2039/1027 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medical device assembly, comprising:
a stylet having a distal stylet body and a proximal stylet hub;
a cannula having a distal cannula body and a proximal cannula hub; and
a lock for securing the stylet to the cannula, wherein the lock includes at least one abutment on at least one of the stylet hub and the cannula hub, for restricting relative movement between the stylet hub and the cannula hub,
wherein a generally planar distal surface of the stylet hub abuts a generally planar proximal surface of the cannula hub when the medical device assembly is in a locked configuration, wherein each of the generally planar distal surface and the generally planar proximal surface is rectangular and includes corners,
wherein one of the proximal surface of the cannula hub and the distal surface of the stylet hub includes at least one channel configured to receive at least one protrusion extending from the other one of the distal surface of the stylet hub and the proximal surface of the cannula hub,
wherein the at least one protrusion is on at least one of the corners of the generally planar distal surface or at least one of the corners of the generally planar proximal surface, and the at least one channel is on at least one of the corners of the other one of the generally planar distal surface and the generally planar proximal surface,
wherein, in the locked configuration, the at least one protrusion is configured to disengage from the at least one channel via only relative rotation between the proximal stylet hub and the proximal cannula hub, and
wherein the at least one channel and the at least one protrusion both extend parallel to a longitudinal axis of the stylet.