An embolic filter balloon is disclosed. The embolic filter balloon may comprise an inflatable balloon portion. Further, the inflatable balloon portion may be coupled to a filter member. The embolic filter balloon may be disposed in a body lumen. In some embodiments, the embolic filter balloon may be configured such that when the inflatable balloon portion is at least partially inflated the filter member extends at least partially across the body lumen. Such a configuration may allow the embolic filter balloon, when deployed, to filter particles greater than a predetermined size from a fluid in the body lumen.

An embolic protection system may include a delivery catheter, a core wire slidably disposed within a lumen of the delivery catheter, an expandable support frame, and a filter element coupled to the expandable support frame. The filter element is a material configured to allow blood flow therethrough while blocking a passage of embolic debris. The embolic protection device may be positioned within the ascending aorta with a distal end located between the aortic valve and the coronary arteries.

Methods and devices are disclosed that enable safe, rapid and relatively short and straight access to the cerebral arteries for the introduction of interventional devices to treat acute ischemic stroke. In addition, the disclosed methods and devices provide means to securely close the access site to the cerebral arteries to avoid the potentially devastating consequences of a transcervical hematoma.

An over-the-wire retrieval system having at least one expandable filter basket deployable and retrievable over a positioning guidewire that remains in place throughout the thrombectomy procedure. The filter catheter can slidably receive the positioning guidewire allowing the positioning guidewire to navigate a collapsed filter basket past a clot before the filter basket is expanded and pulled through the clot to engage or capture clot material. The filter basket can be re-collapsed and navigated past the clot over the positioning guidewire for multiple passes through the clot. The filter catheter can be paired with a flexible capture sleeve or an aspiration sheath for collection and removal of the clot material gathered by the filter basket on each pass. The flexible capture sleeve includes, in an example, a thrombus conveyor configured to transition between everted and inverted configurations.

Systems and methods can remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions.

An aspiration system includes a pump and a control system in communication with the pump. The control system includes a microcontroller, an antenna configured to receive a signal, and a pump control board in communication with the microcontroller. The antenna is in communication with the microcontroller. Upon receiving the signal, the pump control board operates the pump to create negative pressure according to the signal.

The devices and methods described herein relate to jointless construction of complex structures. Such devices have applicability in through-out the body, including clearing of blockages within body lumens, such as the vasculature, by addressing the frictional resistance on the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen.

A system used to entrap clots in arteries, such as cerebral arteries, between the artery wall and an external surface of a stent to provide restoration of blood flow therethrough that includes a stent forming an annular wall that defines a set of openings, and an expansion member extendable through the stent to place a distal portion thereof distal to the stent. The stent is advanced into a clot disposed within a vessel and transitioned to an expanded configuration such that the annular wall engages the clot. The expansion member extends through the stent and is transitioned to an expanded state such that a diameter of the distal portion is greater than a diameter of a proximal portion thereof. The expanded distal portion is sized to fill a portion of the vessel to prevent clot fragments from flowing distal to the expansion member.

A removal device and a removal system are configured to effectively remove an object in a body lumen while suppressing damage to another device. The removal device includes an elongated shaft part, and a cutting part fixed to a distal portion of the shaft part. The proximal portion of the cutting part includes a ring-shaped cutting blade, and a surface of the cutting part on which the cutting blade is positioned is inclined relative to center axis of the shaft part at an angle greater than 0 degrees and less than 90 degrees.

The invention provides a filter assembly including a string or wire such that a lasso type cincture is effected, said filter being openable and closeable while in deployed within a bodily vessel. A string lengthen or shorting adjustment mechanism, such as a ratchet or reel allows more length of string into the device or alternatively to shorten the length of available string in the system. The described invention, when used to ameliorate venous clots and most arterio-venous dialysis grafts, a filter-tipped aspirator is used downstream from the clot to capture and remove dislocated emboli. A method of using same is disclosed.