Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device (100) configured in accordance with embodiments of the present technology can include an anchoring member (104) coupled to a flexible, compliant damping member (102) including a generally tubular sidewall having an outer surface (115), an inner surface (113) defining a lumen configured to direct blood flow, a first end portion (106) and a second end portion (108), and a damping region (120) between the first and second end portions (106, 108). The inner and outer surfaces (113, 115) of the damping member (102) can be spaced apart by a distance that is greater at the damping region (120) than at either of the first or second end portions (106, 108). When blood flows through the damping member (102) during systole, the damping member (102) absorbs a portion of the pulsatile energy of the blood, thereby reducing a magnitude of the pulse pressure transmitted to a portion of the blood vessel distal to the damping device (100).

A non-occluding intravascular pump comprises a shroud providing an inlet for incoming blood flow and an outlet for outgoing blood flow, wherein the shroud is a cylindrical housing; an impeller positioned within shroud, wherein a central axis of the shroud and impeller are shared; a motor coupled to the impeller, wherein the motor rotates the impeller to causes blood to be drawn through the inlet and output to the outlet, and the motor is centrally disposed and shares the central axis with the shroud and the impeller; and a plurality of pillars coupling the motor to the shroud, wherein the pillars secure the shroud in close proximity to the impeller. Various design features of the pump may be optimized to reduce hemolysis, such as, but not limited to, inlet length, impeller design, pillar angle, and outlet design.

Detachable stents delivered to the transverse, straight or superior sagittal sinus used to address tinnitus and related venous abnormalities including stenosis, jugular bulb and arachnoid granulation, inter alia.

Apparatus and methods are described including implanting an aortic pressure-loss-reduction device (20) in a subject's ascending aorta. While the device is inside a catheter (42), a distal end of the catheter is placed within the ascending aorta. A proximal covering sheath (44) of the catheter is retracted such as to uncover at least a portion of a downstream anchor (31), such that the uncovered portion of the downstream anchor includes a portion of the frame that does not have material coupled thereto. Subsequently, a distal covering sheath (45) of the catheter is advanced, such as to cause an upstream anchor (33) to anchor an upstream end device (20) to the subject's ascending aorta, by the upstream anchor radially expending against an inner wall of the ascending aorta. Other applications are also described.

A stent is disclosed that has an elongated body composed of a bioabsorbable polymer having a proximal end, a distal end, two open spiral channels formed on the exterior surface of the body to provide fluid communication between the proximal end and the distal end. The stent has a central lumen open at the proximal and distal ends of the stent for the passage of a guide wire. The stent also has an anti-migration device used for immobilization of the stent at the target site.

A blood filter device having occlusion-resistant characteristics. The occlusion-resistant characteristics decrease the likelihood of the filter being blocked by thrombi. The filter device includes at least one anchor portion for anchoring the filter device within an aortic branch artery, and a filter portion for filtering thrombi from the blood entering the artery. The filter portion includes an open channel at an open end that, in an implanted configuration, flares outward to increase the width of the filter portion. The open end may accommodate passage of surgical instruments into the artery and may enable blood flow to bypass the filter should the filter become heavily occluded.

A flow diverter device is used to redirect the blood flow inside the cerebral blood vessels and for the reduction of blood flow to the aneurysm, hence preventing the chance of aneurysm rupture as well as promoting the healing of the aneurysm. The novel design of the device, using a set of thicker wires, provides high kink resistance and radial strength. Two patterns of inter-braiding the thicker set of wires with the finer braid are disclosed, one having a checker-board and the other a ring structure. Both patterns are highly kink resistant with the checker-board design providing minimal loss in flexibility, whereas the ring design provides greater radial strength. The device could be made of super elastic materials like Nitinol wires with the thicker set being radio opaque. The device is highly kink resistant and sufficiently flexible for use in vasculature with complex bends.

A prosthetic heart valve either of the mechanical type or the bio prosthetic type, comprises a tubular or cylindrical frame element, a plurality of injectors, a suturing member surrounding the tubular or cylindrical frame element, tether lines to secure the device during diastolic filling but more predominantly during systolic contraction that creates a vortex effect with externally supplied pressurized fluid injected angularly within a transport structure is provided. Such a unit is utilized to accelerate the hemodynamics, reduce the energy required for said transport or both. The annular frame is designed to allow a passageway for blood flow and regulating flow during systolic contraction. Such a result is achieved through the introduction of pressurized fluid (blood) via a plurality of injectors situated evenly around the circumference of the subject tubular or cylindrical unit, and angled uniformly for an even pressure injection of fluid within the conveyance component thereof.

A flow diversion device for treating branch point aneurysms that includes a wire stent frame comprising a plurality of wire elements, the wire stent comprising a proximal limb and two distal limbs, wherein the proximal limb and the two distal limbs converge at a crotch of the wire stent frame. The plurality of wire elements may be braided together. The flow diversion device may have a substantially Y-shape or T-shape. The flow diversion device may be manufactured by using two tubular flow diversion devices to make a Y-shaped flow diversion device.

A system for treating an aneurysm comprises at least a first double-walled filling structure having an outer wall and an inner wall and the filling structure is adapted to be filled with a hardenable fluid filling medium so that the outer wall conforms to the inside surface of the aneurysm and the inner surface forms a generally tubular lumen to provide blood flow. The first filling structure comprises a sealing feature which forms a fluid seal between the filling structure and the aneurysm or an adjacent endograft when the filling structure is filled with the hardenable fluid filling medium, thereby minimizing or preventing blood flow downstream of the seal.