A medical device may include a catheter, an expandable member, a cover, and an actuator. The catheter may include a longitudinal axis, proximal and distal ends, and a cover lumen extending from the proximal to the distal end. The expandable member may include proximal and distal ends and may be disposed on a distal section of the catheter. The cover may include a first region that may be disposed along the expandable member, and a second region that may extend along a length of the catheter beyond the proximal end of the expandable member towards the proximal end of the catheter. A first end of the cover may invert into the cover lumen. The actuator may be coupled to the first end of the cover and configured to move the first end of the cover towards the proximal end of the catheter along the longitudinal axis of the catheter.

A pulmonary artery flow restrictor system includes a funnel shaped membrane with a proximal base, a restrictive distal opening which is stretchable to larger sizes, an internal strut structure, and an external stent structure.

An embolisation device (10) for promoting clot formation in a bodily lumen (L) and having a collapsed delivery configuration for delivery of the embolisation device (10) into, and retrieval of the embolisation device (10) from, the bodily lumen (L) and an expanded deployed configuration for anchoring the embolisation device (10) in the bodily lumen (L). The embolisation device (10) comprises a tubular cage (20) having a collapsed delivery configuration and an expanded deployed configuration. The embolisation device further comprises an embolisation member (30) disposed in the tubular cage (20), the embolisation member (30) comprising a stem (31) and a plurality of flexible bristles (32) extending outwardly from the stem, the plurality of flexible bristles having a collapsed delivery configuration and an expanded deployed configuration. The embolisation device (10) is configured such that as the tubular cage (20) is transitioned from its expanded deployed configuration to its collapsed delivery configuration the plurality of flexible bristles (32) is urged by the tubular cage (20) from the expanded deployed configuration of the flexible bristles (32) to the collapsed delivery configuration of the flexible bristles (32).

Balloon catheters and methods are provided for selectively occluding blood flow into a right atrium of a patient's heart communicating with an inferior vena cava (IVC) and superior vena cava (SVC). In one embodiment, a catheter includes first and second balloons adjacent one another on a distal end of the catheter shaft. During use, the distal end is introduced into the right atrium and positioned such that the first balloon is located within the right atrium. The first balloon is expanded within the right atrium and the catheter shaft directed such that the expanded first balloon engages at least a portion of the IVC to prevent substantial inflow into the right atrium from the IVC. The second balloon is then expanded to limit inflow into the right atrium from the SVC, and a medical procedure is performed within the patient's body.

An embolisation device (100) for promoting clot formation in a bodily lumen (170), comprising a stem (110) and a plurality of flexible bristles (120) extending outwardly from the stem, the bristles having a contracted delivery configuration and an expanded deployed configuration in which the bristles extend at least radially outwardly from the stem to anchor the device in the lumen. The embolisation device comprises a flow restrictor configured to restrict flow through the bodily lumen. The flow restrictor comprises: a membrane support (135) having a contracted delivery configuration and an expanded deployed configuration and comprising a self-expanding mesh extending at least radially outwardly from the stem; and an occluding membrane (130) mounted on the membrane support (135). The occlusion rate of the occluding mesh membrane is greater than that of the membrane support. The flow restrictor is attached to the stem at a first longitudinal end, the flow restrictor further comprising an open second longitudinal end. The occluding membrane is configured to restrict flow through the lumen when the device is deployed and the membrane support is in the expanded deployed configuration.

A device includes a balloon and an interface. The balloon has an outer surface and a central lumen aligned on a longitudinal axis. The balloon is configured to receive a compressible fluid. The interface is coupled to the outer surface and has an external surface configured to bond with a tissue.

There is provided an implant system comprising: a delivery wire assembly having a female detachment mechanism component; and an implant having a male detachment mechanism component, wherein the female detachment mechanism component comprises a coil configured to receive the male detachment mechanism component such that the male detachment mechanism component is attachable to the female detachment mechanism component.

A vessel occluder used to occlude blood flow within the vasculature is described. The vessel occluder can include an expandable mesh portion having a flexible membrane that expands within a cavity of the expandable mesh portion. When expanded, the flexible membrane blocks blood passage through the mesh portion.

The present disclosure relates to an occluder pushing device and an occluder delivery system, wherein the pushing device includes a pushing component and a handle. The pushing component includes a pushing tube and a traction element slidably inserted into the pushing tube. The handle is fixedly connected to a proximal end of the pushing tube and internally provided with a moving component and a locking component. The moving component includes a translation mechanism and a rotation mechanism, where the translation mechanism is used to drive the traction element to move axially inside the pushing tube, and the rotation mechanism is used to drive the traction element to rotate axially inside the pushing tube. The locking component is used to lock relative positions of the traction element and the pushing tube, and the rotation mechanism includes a locking structure for locking or releasing linkage between the rotation mechanism and the traction element. The pushing device of the present invention has provided therein the locking component for locking the traction element and the pushing tube in relative positions, such that when the pushing tube pushes the occluder, the relative positions of the traction element and the pushing tube lock the occluder in a folded state, thereby preventing the occluder from being prematurely released before reaching a pre-determined position.

Embodiments of the disclosed technology provide flow diverting devices for dialysis vascular access, and methods for use therewith. According to some embodiments of the disclosed technologies, a medical device comprises: a tubular vascular stent; and a flow restrictor disposed within the tubular vascular stent. According to some embodiments of the disclosed technologies, a method comprises: providing a medical device, the medical device comprising: a tubular vascular stent, and a flow restrictor disposed within the tubular vascular stent; and deploying the medical device at a site within a vascular access of a patient. According to some embodiments of the disclosed technologies, a medical device comprises: a tubular vascular stent; one or more anchor struts formed on at least one end of the tubular stent; a flow restrictor disposed within the tubular vascular stent; and a tubular stent cover, wherein the vascular stent is disposed within the tubular stent cover.