Trapping catheter and kit and method for preparing a trapping catheter A trapping catheter (10) for insertion into a guide catheter assembly (3) comprises a balloon (22) and a trapping catheter body (23) bounding an inflation lumen (24) extending longitudinally within the trapping balloon catheter. The inflation lumen has a distal end opening (25) into an internal space bounded by the balloon. The trapping catheter body is provided with a stopper (26) for abutting against an abutment (27) at a proximal end (27) of the guide catheter assembly so as to determine a maximum insertion depth of the trapping catheter into the guide catheter. A kit and method for preparing a trapping catheter prior to insertion into a guide catheter is also described.

In a method for diagnosing, validating and treating a patient having lesions in both arteries of left and right lower limbs. By determining that a harder lesion to be treated first, catheters and an operation time can be reduced is to be treated first on a priority basis based on diagnostic data, deciding that a softer lesion is to be treated next, then treating the lesions substantially continuously.

A method and apparatus provide techniques for stenting ostial legions and other restenosis in vessels through a stenting apparatus that includes both a guidewire and a separate marker wire. In some examples, the marker wire is threaded through a tubular body of the stenting apparatus and in other examples, the marker wire may be threaded externally through the tubular body. In both such examples, the marker wire may be aligned with a radiopaque marker of the apparatus to guide marker wire positioning.

A medical device system for concurrent power and data transfer comprises an elongated conductive member. At least a portion of the elongated conductive member is configured for insertion within an intraluminal space. One or more sensors that are in electrical connection with the elongated conductive member. The medical device system uniquely allocates each of the plurality of unique contiguous segments within a signal space to one of (i) one or more power channels or (ii) one or more signal channels. The medical device system then sends the electrical signals, via the elongated conductive member, to one or more sensors that are in electrical connection with the elongated conductive member. The medical device harvests energy from the electrical signals. The medical device system isolates transmitted data signals within at least one of the one or more signal channels the data signals generated by the one or more sensors.

A dilator for sheathless access to a vessel of a patient, having a distal portion with a maximal outer diameter that extends from a distal end to a guidewire exit port and a proximal portion with a reduced profile that extends from the guidewire exit port to the proximal end and a lumen that extends between the distal end and the guidewire exit port. A first guidewire may be positioned within the vessel and the dilator advanced over the guidewire. A guide catheter may then be advanced over the dilator.

An intravascular sensor delivery device for measuring a physiological parameter of a patient, such as blood pressure, within a vascular structure or passage. In some embodiments, the device can be used to measure the pressure gradient across a stenotic lesion or heart valve. For example, such a device may be used to measure fractional flow reserve (FFR) across a stenotic lesion in order to assess the severity of the lesion. The sensor delivery device has a distal sleeve configured to pass or slide over a standard medical guidewire. Some distance back from the sensor and distal sleeve, the device separates from the guidewire to permit independent control of the sensor delivery device and the guidewire. The sensor delivery device can be sized to pass over different sizes of guidewires to enable usage in coronary and peripheral arteries, for example.

Methods and devices for performing transjugular carotid flow reversal are provided. A flow reversal sheath is advanced through a transjugular carotid fistula. An occlusion balloon is inflated, causing carotid inflow to be diverted through the sheath and through a flow reversal region positioned in the jugular vein. After reversal of blood flow, a carotid intervention is performed.

The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature.

A spinal treatment method and device are provided. The treatment method includes a catheter introduction step of inserting a balloon catheter into a treatment site between nerves extending from a spine, while being bifurcated, and a lesion area that compresses the nerves; and a treatment step of dilating a balloon, on which anti-inflammatory agent is disposed, of the balloon catheter at the treatment site, and applying the anti-inflammatory agent to the treatment site.

There is provided a microcatheter having a proximal solution lumen and a distal tip portion with a guidewire lumen. The microcatheter and methods of use thereof allows for introduction of solution into a vessel while manipulating the guidewire and/or the microcatheter itself. The solution may be a contrast solution, for viewing of the vessel, a therapeutic or diagnostic solution, or any other type of solution.