Abstract:
A steerable, conformable, drug eluting balloon catheter device may comprise a catheter stem with one or more balloon element(s), themselves comprised of one or more segment(s) arranged radially or axially along the length of the device, and may allow precise deployment of vascular interventional devices, including coring devices and/or placement of stents, and may also allow targeted, specific placement of selected diagnostic or therapeutic materials on the walls of a vascular structure during a cardiovascular intervention procedure.
Abstract:
A device for soft tissue biopsy or excision for either handheld or stereotactic table use may comprise a work element configured to selectively open and close at least one articulable beak configured to penetrate tissue, or follow a central lumen of another device or over a wire in a longitudinal direction. Flush and vacuum tissue transport mechanisms may be incorporated. A single tube or an inner sheath and an outer sheath which may be co-axially disposed relative to a work element may be configured to actuate a beak or beaks and provisions for simultaneous beak closing under rotation may be incorporated.
Abstract:
An excisional biopsy and delivery device may comprise one or more rotating, penetrating and cutting rod elements. The rod elements may be configured to advance from a stored and confined first position and rotate about an axis, while being simultaneously revolved about a central axis. The rod elements may then assume a second released and expanded configuration that is operative to cut around and surround target tissue. In this manner, the rod elements are operative to move through the surrounding tissue to create a volume of revolution and to sever and capture the target tissue contained within fee volume of revolution from fee surrounding tissue. The severed and captured volume of revolution, containing fee target issue may then be removed.
Abstract:
A vascular interventional device may comprise a combination of inflatable and cutting elements and embodiments may comprise structures and functionality for dilatation of blood vessels narrowed by diseases, removal of plaque and debris from diseased blood vessels and delivery of drugs for the prevention of re-narrowing of vessel luminal cross-section area as well as to provide scaffolding when needed to keep vessels patent.
Abstract:
A device for intra-vascular embolic-thrombolic protection, as well as embolectomy/thrombectomy and atherectomy interventional procedures and methods. At least a portion of the working end of the device may be formed monolithically from a single hypodermic tube, or may be formed of monolithic inner and outer tubes with fixed or movable guide wire elements and imaging modalities. The device may comprise structures enabling coring, expansion within a vascular stnicture and vascular wall shaving, as well as filtration, stabilization and capturing of thrombotic or embolitic material during an intervention procedure.
Abstract:
An in-situ material delivery device for handheld, stereotactic table or MRI stage use may comprise a work element configured to selectively open and close at least one articulable beak configured to penetrate tissue to a target delivery site, or follow a central lumen of another device or other guiding modality, and then to deliver selected materials. Such a device may deliver a variety of materials such as markers, radio-active pellets, medications, other devices, and other materials of solid, liquid or gaseous form to a target site, and materials of similar nature may also be captured and removed from a target site. A single tube with or without coatings or an inner sheath and an outer sheath which may be co-axially disposed relative to a work element may be configured to actuate a beak or beaks and internal delivery mechanisms simultaneously. One embodiment of this device may be applicable to field use or one time use.
Abstract:
A soft tissue biopsy or material collection device may comprise a work element consisting of an outer tube with external sheath and formed from a tapered helical structure over an internal tube structure configured to open and close its distal end to perform penetration, coring, capturing, parting off and transporting multiple material samples in a single or multiple insertion procedure.
Abstract:
A device comprises a syringe comprising a syringe body portion and a plunger portion configured to engage with and slide axially within the body portion; a tube set fitted to the syringe. The tube set may comprise a proximal tube attached to the plunger portion at a proximal end thereof and terminated, at a distal end thereof, by a beak assembly configured to assume a first configuration suitable for coring through tissue and a second configuration suitable for tissue penetration and parting off tissue; and a distal tube disposed over and coupled to the proximal tube to enable travel-limited axial displacement relative to the proximal tube. Axially moving the plunger portion of the plunger portion within the body portion of the syringe causes differential movement of the proximal tube relative to the distal tube to selectively cause the beak assembly to assume the first or the second configuration.
Abstract:
An excisional device for either handheld or stereotactic table use may comprise an outer sheath that may comprise a distal scoopula shape configured to penetrate and/or cut tissue independently or in concert with, work element(s). The articulable work element(s) may comprise articulable beak(s) and may be configured to translate and/or rotate at a first rate and to cut tissue in a direction implied by placement, of the scoopula shaped outer sheath. A first helical element or equivalent assembly may be configured to transport tissue cut by the work element(s) and/or scoopula, may be co-axially disposed relative to the work element(s) and may be operative to rotate at a second rotation rate that is different than the first rate. A proximal sheath may be co-axially disposed relative to the work element(s) and the first helical element, and may be configured to rotate and actuate the work element(s).
Abstract:
A platform device for material excision or removal from vascular structures for either handheld or stereotactic table use may comprise a work, element or elements configured to selectively open and close at least one articulable beak or scoopula configured to penetrate and remove intra-vascular materials or obstructions, or follow a central lumen o.f another device or over a wire in a longitudinal direction. Flush and vacuum tissue transport mechanisms may be incorporated. A single tube or an inner sheath and an outer sheath which may be co-axially disposed relative to a work element may be configured to actuate a beak or beaks or scoopulas and provisions for simultaneous beak or scoopula closing under rotation may be incorporated.