US 12,108,945 B2
Self-expanding hemostatic devices and methods for fascia and vessel passages
Thomas Larzon, Lidingö (SE); and Cecilia Larzon, Stockholm (SE)
Assigned to ARTERICA INC., Santa Rosa, CA (US)
Filed by ARTERICA INC., Santa Rosa, CA (US)
Filed on Oct. 23, 2019, as Appl. No. 16/661,261.
Claims priority of provisional application 62/750,159, filed on Oct. 24, 2018.
Prior Publication US 2020/0129164 A1, Apr. 30, 2020
Int. Cl. A61B 17/00 (2006.01)
CPC A61B 17/0057 (2013.01) [A61B 17/00491 (2013.01); A61B 17/00234 (2013.01); A61B 2017/0061 (2013.01); A61B 2017/00619 (2013.01); A61B 2017/00663 (2013.01); A61B 2017/00862 (2013.01); A61B 2017/00867 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vascular closure device, comprising:
an outer housing having an elongate configuration with an axial length greater than a transverse dimension thereof, a proximal end, a distal end, an inner lumen extending from the proximal end to the distal end, a distal section and a plurality of axial lumens;
a plurality of anchor deployers which are slidably disposed within respective axial lumens of the outer housing adjacent each other at the distal section of the outer housing and which are configured to extend and spread from the respective axial lumens at the distal section of the outer housing, each anchor deployer comprising:
a deployment rod which is slidably disposed relative to the outer housing and which includes an elongate resilient configuration and a distal end that extends from the distal section of the outer housing,
an anchor which is removably secured to the distal end of the deployment rod and which is configured to penetrate tissue in a distal direction, and
a filament which is slidably disposed within the housing and which includes a distal end which is secured to the anchor,
a tissue grip which is disposed on and deployable from the distal end of the outer housing; and
an inner hemostatic assembly including:
an elongate shaft having an axial length greater than a transverse dimension thereof, a proximal end, a distal end and a distal section that is axially slidable within the inner lumen of the outer housing and relative to the plurality of axial lumens of the outer housing,
a self-expanding plug disposed on the distal section of the elongate shaft proximal of the distal end of the elongate shaft, the self-expanding plug comprising a generally ovoid outer profile and a distal end that tapers to a generally axially oriented direction, the self-expanding plug being configured to self-expand from a compressed state sized to fit within the inner lumen of the outer housing to an expanded state which has an outer transverse dimension which is larger than an outer transverse dimension of the elongate shaft, which is easily compressible and which is configured to be easily advanced through an access passage while filling and sealing the access passage and sealing an adjacent access hole in a wall of a blood vessel of a patient, and
a lateral surface which is secured to the elongate shaft and which is configured to extend radially outward from the distal section of the elongate shaft distal of the self-expanding plug upon actuation of an actuator that is operatively coupled to the lateral surface and which is configured to engage an inner surface of a vessel to prevent proximal retraction of the elongate shaft once so engaged.