A balloon catheter is disclosed having a distal side shaft formed of a resin material, a proximal shaft formed of a metal material, and an inner tubular shaft disposed along an inclined portion and a concave portion of the proximal shaft. The distal side shaft is joined to the proximal shaft at the small diameter portion on the proximal side from a distal opening of the proximal shaft. The distal opening of the proximal shaft is disposed on the distal side from a guide wire proximal opening.

The present disclosure describes an angioplasty balloon catheter having a retractable sheath and a flexible tip attached to the distal end of the sheath. The flexible tip is made of an elastomeric plastic that is capable of returning to its original shape after being expanded multiple times. The tip allows for the sheath to be retractable and the balloon inflated multiple times to treat or expand different locations within the vessel. Because the tip returns to its original shape each time, the tip is less likely to damage the vessel wall when the sheath is repositioned in the vessel, and also is easier to retract through a guide-catheter.

A tubular structure having variable support includes a tubular member and a structural support member with a flexible tubular member over the structural support member, such that the flexible tubular member can engage and disengage or squeeze and release the structural support member. The structural support member can be a tubular mesh, stent, framework, skeleton, braid or other flexible framework. A fluid passage can be used to inflate and deflate the flexible tubular member. Methods of assembly and methods of use are also described.

A catheter for dilating and/or destroying a stenosis in a vessel of a patient includes a catheter shaft having a cavity, at least one first active element within the cavity fixedly connected to a wall delimiting the cavity, and at least one radially protruding scoring element arranged on the outside of the catheter shaft at the cavity for exerting a pressure force on a stenosis in a vessel. The at least one first active element is configured to react to an axially movable element by radially expanding the catheter shaft and thereby radially expanding the at least one radially protruding scoring element.

A catheter for recanalizing a blood vessel having an occlusion therein via a subintimal pathway. The catheter includes a catheter shaft having an inflatable balloon mounted to the distal end portion of the catheter shaft. A flexible tubular member extends from the catheter shaft and along an exterior of the inflatable balloon. Inflation of the inflatable balloon deflects the flexible tubular member into a deflected configuration away from a longitudinal axis of the catheter shaft to effect re-entry into the true lumen distal of the occlusion.

An endoscopic peripheral includes a first end of a flexible cable including at least a camera and one or more lights enclosed by a tip at the first end. The tip is tapered for insertion of a portion of the first end into a body of a patient. The endoscopic peripheral includes one or more controls interconnected with and controlling the camera and the one or more lights. A second end of the flexible cable terminates in a plug configured to physically connect the endoscopic peripheral to an electronic device. The electronic device powers the camera and the one or more lights and displays content captured by the camera. The endoscopic peripheral is plug and play when connected to the electronic device. The diameter of the diameter of the endoscopic peripheral between the first end and the second end is approximately the same.

A balloon of a balloon catheter must be able to withstand fatigue to its componentry caused by multiple cycles of repeat motions, such as deployment from a lumen of the catheter, expanding the balloon, collapsing the balloon, and withdrawal of the balloon into the lumen. The catheter balloon may include plurality of electrode substrates, each including a plurality of tails. A reinforcement component, which may be a portion of another balloon, may be disposed over at least some of the plurality of tails and attached to the membrane. Where tails are provided on the proximal and distal ends of the balloon, two reinforcement mechanisms may be used.

An endoscopic peripheral includes a first end including at least a camera and one or more lights. The endoscopic peripheral may also include a second end may include a plug to physical connect the endoscopic peripheral to a computing device or a wireless device. The endoscopic peripheral may also include a flexible cable for communicating content captured by the camera to the computing device or wireless device.

A medical probe includes a shaft and an expandable balloon. The shaft is configured for insertion into an organ of a patient. The expandable balloon is coupled to a distal end of the shaft, with the expandable balloon including: (a) an expandable membrane having an outer surface and an inner surface, wherein the expandable membrane is configured to be expanded from a collapsed shape to a balloon shaped member, (b) a plurality of electrodes disposed on the outer surface of the expandable membrane, (c) one or more wires connected to the plurality of electrodes, the wires extending from the distal end to the electrode, (d) and an expandable cover that encapsulates the wires between the expandable cover and the expandable membrane so that the wires are constrained between the cover and the expandable membrane but the electrodes are exposed to ambient environment.

An endovascular method for bypassing an occlusion is disclosed. A distal end of a guidewire may be advanced through a microcatheter and into a subintimal space of an artery of a patient, where a knuckle may be formed at the distal end of the guidewire, and the guidewire with the knuckle at the distal end thereof may be advanced to the occlusion. An inflatable balloon catheter may be placed over the advanced guidewire and distal to the occlusion, and the inflatable balloon catheter may be inflated to form at least one opening in a layer separating the subintimal space from a true lumen, whereby the guidewire may traverse the at least one opening.