Abstract:
Disclosed are methods of delivering an agent to the lumen of the vas deferens under guidance of ultrasound imaging. The methods include vas-occlusive contraception in which the vas deferens is non-surgically isolated and an occlusive substance is percutaneously administered into the lumen of the vas deferens under ultrasound. Also disclosed are methods of reversal of vas-occlusive contraception and methods of delivering an agent to the lumen of the vas deferens. Also disclosed are compositions for use in the methods of the invention.
Abstract:
Expandable occlusive plugs and methods of using them are disclosed. The devices generally include an expandable framework at least partially covered by a membrane. The occlusive plugs can be used for occlusion of body lumens and/or to limit migration of embolic agents to non-target sites.
Abstract:
The present disclosure relates to the field of embolic coil delivery. In particular, the present disclosure provides a delivery system that allows an embolic coil, retained on a delivery tube outside of the microcatheter, to be positioned within a target occlusion area of a patient prior to being controllably deployed, or retracted into the microcatheter for repositioning. The delivery system is particularly useful for minimizing embolic coil kickback.
Abstract:
An embolisation device for promoting clot formation in a lumen comprises at least two segments (3,4), each segment (3,4) comprising a stem and a plurality of flexible bristles extending outwardly from the stem. The bristles have a contracted delivery configuration and a deployed configuration in which the bristles extend generally radially outwardly from the stem to anchor the device in a lumen. In the deployed configuration bristles of one segment (3) extend partially in a first longitudinal direction and the bristles of another segment (4) extend partially in a second longitudinal direction which is opposite to the first longitudinal direction. A flow restrictor (5) is located adjacent to a proximal end of the device and/or a flow restrictor (5') is located adjacent to the distal end of the device.
Abstract:
An implantable medical device for sealing and repairing defects in a body tissue or for creating an anastomosis includes a frame (1000, 100, 1410, 1610, 1810, 1910, 191, 1, 2210, 2310, 400, 700) and a covering material (1110, 1412, 1612, 1812, 1912, 210, 2214, 2314, 510, 810). In some embodiments, the frame (1000, 100, 1410, 1610, 1810, 1910, 191, 1, 2210, 2310, 400, 700) includes a single continuously wound wire that defines an apposition portion (1020, 120, 130, 1420, 1820, 1920, 1, 420, 720), a defect-occupying portion, and a sealing portion (1030, 130, 1430, 1830, 1930, 430, 730). In some embodiments, the tissue-sealing and anastomosis devices provided herein are well-suited for use in the Gl tract including the small bowel and colon. In some embodiments, a two-part frame (1000, 100, 1410, 1610, 1810, 1910, 191, 1, 2210, 2310, 400, 700) construct facilitates independent tailoring of apposition forces and radial forces exerted on tissues by the two-part frame (1000, 100, 1410, 1610, 1810, 1910, 191, 1, 2210, 2310, 400, 700)
Abstract:
An implantable medical device deployment system is disclosed that employs both a sheath element (26) and a constraint member (32) to protect implantable medical devices during delivery in a body while providing simple, accurate, and reliable device deployment. The delivery system is configured so that loading and deployment forces are not directly related to device diameter, length, or design, thus allowing a more universal delivery system across various delivered device configurations and product lines. The deployment system can provide numerous benefits, include better protection for drug-coated implantable devices.
Abstract:
Deployment systems and methods are provided herein for percutaneous transcatheter deployment of medical devices. A medical device deployment system includes a body member and a body locking member that is configured to cooperatively engage along a portion of the body member such that the body member is releasably coupleable to a medical device.
Abstract:
Various features are described that are adapted to improve performance of interference-relief type delivery systems. A delivery system provided herein comprises an implant comprising a socket at a proximal end of the implant; an elongate sleeve having (i) a proximal section, (ii) a distal section slidably disposed within the socket, and (iii) a window between the proximal section and the distal section, the window extending through a wall of the sleeve; and a core member having a proximal portion slidably received within the proximal section of the sleeve and a distal portion extending through the window to a space outside the sleeve and within the socket. The distal portion of the core member provides an interference fit with the distal section of the sleeve within the socket until the core member is withdrawn.
Abstract:
A system for treatment of an aneurysm includes an intrasaccular device that can be delivered using a catheter. The device can include at least one expandable structure adapted to transition from a compressed configuration to an expanded configuration when released into the aneurysm. The expandable structure can have a specific shape or porosity. Multiple expandable structures can also be used, in which case each of the expandable structures can have a unique shape or porosity profile. The morphology of the aneurysm and orientation of any connecting arteries can determine the type, size, shape, number, and porosity profile of the expandable structure used in treating the aneurysm.
Abstract:
There is provided herein a disclosure and specification of invention(s) relating to devices and methods for percutaneous access and treatment of vascular structures in the rear of the eye, including treatment for the symptoms related to Wet Age Related Macular Degeneration by removal of stenosis of the OA, thereby restoring normal, or near normal, blood flow to the rear of the eye, including the retina and associated structures. Also provided herein is a disclosure and specification of invention(s) relating to methods and devices for selective manipulation of Intraocular Pressure (IOP) be means of mechanical force for the purpose of inducing retrograde flow in the ophthalmic vasculature.