Deconstructable endoluminal devices and related systems and methods
Inventors
Cully, Edward H. • Duncan, Jeffrey B. • Martonik, Brian C.
Assignees
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Publication Number
US-12318555-B2
Publication Date
2025-06-03
Expiration Date
Abstract
An endoluminal device comprises a tubular member and a reinforcement member that is separable from, or together with, a wall of the tubular member, and removable in-situ.
Core Innovation
The disclosed invention relates to deconstructable endoluminal devices, including an introducer sheath having a tubular member with a longitudinally extending lumen and a reinforcement member that provides radial and/or longitudinal support. The reinforcement member is configured to be removed from the tubular member in-situ to facilitate atraumatic detachment and removal.
The reinforcement member includes a plurality of helical windings that can be removed by applying a force to a proximal end of the reinforcement member. The reinforcement is specified as ePTFE or nitinol coiled so that adjacent windings are touching each other, and may be coupled to the tubular member using an adhesive.
In some configurations, the reinforcement is disposed between layers of a wall of the tubular member, and deconstruction can include temporarily reducing outer diameter or separating reinforcement together with wall portions via aligned perforations. The disclosure addresses the need for atraumatic detachment/removal during or after use while maintaining radial and/or longitudinal support during delivery.
Claims Coverage
The partial document provides three independent claims. Each claim includes a tubular member with a longitudinal lumen and a removable reinforcement member with a plurality of helical windings; the key differences are the disposition of the reinforcement between wall layers, and whether coupling is via an adhesive.
Introducer sheath with removable helical reinforcement for endoluminal delivery
An introducer sheath for endoluminally delivering surgical implements to a treatment site, comprising a tubular member defining a longitudinally extending lumen and a reinforcement member coupled to the tubular member, the reinforcement member including a plurality of helical windings that can be removed by applying a force to a proximal end of the reinforcement member, wherein the reinforcement member is ePTFE or nitinol coiled so that adjacent windings are touching each other.
Reinforcement disposed between wall layers with removable helical windings
An introducer sheath for endoluminally delivering surgical implements to a treatment site, comprising a tubular member defining a longitudinally extending lumen and a reinforcement member coupled to the tubular member, including a plurality of helical windings that can be removed by applying a force to a proximal end of the reinforcement member, wherein the reinforcement member is disposed between layers of a wall of the tubular member.
Adhesive-coupled removable helical reinforcement
An introducer sheath for endoluminally delivering surgical implements to a treatment site, comprising a tubular member defining a longitudinally extending lumen and a reinforcement member coupled to the tubular member and including a plurality of helical windings that can be removed by applying a force to a proximal end of the reinforcement member, wherein the reinforcement member is coupled to the tubular member via an adhesive.
Across the independent claims, the core inventive concept is an endoluminal introducer sheath with a tubular member and a removable reinforcement member made of helical windings, where removal is performed by applying a force to the proximal end. Claim scope is further differentiated by whether the reinforcement is disposed between wall layers and whether the reinforcement is coupled via an adhesive.
Stated Advantages
Facilitates atraumatic detachment/removal in-situ.
Enables deconstruction of the reinforcement member to allow removal while maintaining support during delivery.
Documented Applications
Endoluminal delivery of surgical implements to a treatment site using an introducer sheath with a tubular member and removable reinforcement member.
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