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US 12,108,945 B2Granted
Self-expanding hemostatic devices and methods for fascia and vessel passages
AssigneeArterica Inc.
InventorsThomas Larzon, Cecilia Larzon
Life of this patent
Estimating the term…
Abstract
Self-expanding plug embodiments may be used in conjunction with vascular closure device embodiments to promote hemostasis at surgical sites or any other suitable location. In some cases, vascular closure device embodiments may include self-expanding plug embodiments in order to promote hemostasis at a surgical site during a vascular closure procedure.
Claims19
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.
8 more elements
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;
- 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 which 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.
4 more elements
Dependencies are inferred from the claim text.