A spiral-based thin-film mesh for medical devices and related methods is provided. The spiral-based thin-film mesh may be used as a stent cover for a stent device. The thin-film mesh may include a plurality of spirals. The spirals allow the thin-film mesh to expand omni-directionally. In one or more embodiments, the spirals may be logarithmic spirals, golden spirals, approximated golden spirals, box Phi spirals, or Fibonacci spirals. The thin-film mesh may be formed from thin-film Nitinol (TFN), and may be fabricated via sputter deposition on a micropatterned wafer.

The device includes a net portion for occluding an aneurysm neck and an adhesive to secure the net portion. The device can further include a channel orifice opening in the net portion, and an agent channel for delivering a rapid-curing agent through the orifice into the aneurysm. Devices can be delivered through a catheter to the aneurysm, the net can expand to occlude the aneurysm neck, and the net can be adhered to the aneurysm neck. In devices including a channel orifice and agent channel, the rapid-curing agent can be injected into the aneurysm. During injection of the rapid-curing agent, the net portion can create a barrier to inhibit the rapid-curing agent from exiting the aneurysm. After injection of the coagulation agent, portions of the treatment device, excluding the net portion, can be extracted from the patient.

Methods, apparatuses and systems are described for delivering a stent through an access hole of a body lumen and covering up the access hole after deploying the stent, Stents are described that include a stent body defining a body lumen contact surface area and a deployable member configured to deploy from the stent body and increase the body lumen contact surface area of the stent. Deployable members that hinge, unroll, extend, expand, and coaxially translate with respect to the stent body are described. A system for delivering a stent into a body lumen are described that may include a coverage member configured to at least partially cover the hole in the wall of the stent upon withdrawing a tubular member through the hole in the wall of the stent. Coverage members may include a self-sealing membrane, a flap valve, or a hinged valve.

A bristle device 8 for delivery into a body lumen comprises a longitudinally extending stem 1 and a plurality of bristles extending generally outwardly from the stem for anchoring the device in a body lumen. There may be at least two bristle segments 96 and there are flexible sections 95 between the segments 96. The flexible sections 95 articulate to enable the device to pass through a catheter placed in a tortuous anatomy or to be deployed in a curved vessel, or across a bifurcation. In some cases at least some of the bristle segments 96 are spaced-apart to accommodate bending of the bristles.

Methods, apparatuses and systems are described for expandable stent delivery apparatus to cover an access site. The method may include delivering the stent through an access site and deploying a distal portion of the stent from within an outer sheath. In some cases, the method may further include pushing a proximal portion of the stent from the outer sheath such that upon fully exiting the outer sheath, the proximal portion extends proximally to at least partially cover the access site with the stent. The system for delivering the stent into the body lumen may include a stent, a stent delivery apparatus, and an outer sheath. The system may further include an internal pusher configured to push a proximal portion of the stent from the outer sheath and axially compress the stent such that upon fully exiting the outer sheath, the proximal portion extends proximally to cover the access site.

A stent for placement in a blood vessel with a wall having an aneurysm including an endovascular graft having a first end, a second end, and a tubular body that is expandable and extends from the first end to the second end. The stent also includes a coagulation apparatus attached to the tubular body between the first and second ends. The coagulation apparatus has a frame and a coagulant attached to the frame. When the stent is deployed within the blood vessel, the tubular body extends across the aneurysm and expands at the first and second ends to seal against the wall of the blood vessel such that blood is channeled across the aneurysm through the tubular body such that a pocket of blood is defined external to the tubular body. The frame expands into the pocket to orient the coagulant therein and promote coagulation of blood within the pocket.

A stent delivery system can include a core member, an introducer sheath, and a microcatheter. The core member can have a distal segment. The stent engagement member can have a generally tubular body positioned about the core member distal segment and can be rotatably coupled to the core member. The engagement member can include an inner layer that has a first durometer and an outer layer that has a second durometer less than the first durometer. The stent can extend along the core member distal segment such that an inner surface of the stent is engaged by the engagement member outer layer for facilitating rotation of the stent relative to the core member.

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 system for removing a thrombus. The system includes an expandable device that maintains axially fixed engagement with the thrombus. The expandable device applies a first force to the thrombus according to surrounding vessel size. The expandable device applies a second force to the thrombus according to an increased vessel size to maintain axially fixed engagement.

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.