A balloon catheter includes a balloon and an inner shaft. The inner shaft includes a marker member arranged on an outer periphery of a coil body having a sparsely wound portion in which gaps are formed between adjacent windings of the wire of the coil body. A distal end part and a proximal end part of the marker member are arranged at a position facing a void formed within one of the gaps between the adjacent windings of the wire of the coil body. The inner shaft of the balloon catheter therefore will not buckle, preventing damage to the balloon by contact with the marker member when the balloon catheter is passed through the inside of a curved blood vessel.

Elongated shaft for a catheter including a single layer biaxially oriented nonporous thermoplastic polymer tubular member having a Shore durometer hardness of less than about 75D is provided. Elongated shaft for a catheter prepared by a process is also provided.

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.

A balloon catheter for use with a guidewire includes an elongated, tubular shaft extending in a longitudinal direction, said shaft having a proximal end and a distal end. An inflatable balloon is connected to the distal end of the shaft, the balloon including a working surface. A radiopaque identifier is provided for identifying the working surface. A receiver adjacent the proximal end of the shaft is adapted for allowing the shaft to move relative to the receiver in at least the longitudinal direction.

Medical devices including a balloon and methods of making medical devices including a balloon are provided. The medical device includes a tubular element, a balloon, and a barrier between the tubular element and the balloon. When air is pushed into one end of the medical device, the balloon may be inflated. The method includes applying a barrier to a tubular element, applying an elastomer solution to the barrier and at least a part of the tubular element to form a coating, and curing the coating to form the balloon.

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 occlusion catheter system includes a proximal hub having an inflation connection port and an inflation pathway. An inflation catheter member is connected to the proximal hub and has an inflation lumen. A stiffener member defines a longitudinal axis. The proximal end of the stiffener member is connected to the proximal hub. The stiffener member extends through a portion of the inflation lumen. An occlusion balloon has a proximal balloon end and a distal balloon end. A distal catheter member is positioned substantially on the longitudinal axis and is connected to the distal end of the stiffener member. An atraumatic tip is positioned on a distal end of the distal catheter member. The atraumatic tip has a substantially circular profile in a relaxed configuration. A pressure sensor is connected to the occlusion catheter system distally relative to the occlusion balloon and is connected to a processor by electrical wiring.

Everting balloon systems and methods for using the same with an alignment element for stability and anti-rotation of the everting balloon are disclosed herein. The systems can be configured to access and deliver instruments, media, or other catheters into bodily lumens and cavities. The alignment element eliminates the potential for the everting membrane to become twisted or rotated which could impact access or the ability of the system to deliver materials. A compliance member facilitates internal pressurization of the everting catheter system.

The present invention provides a balloon catheter comprising: an elastic catheter tube in which a second tube is slidably inserted into a first tube; and an elasticity restriction means for restricting the elasticity of the catheter tube with an elasticity rate thereof by connecting the first tube and the second tube, or a balloon catheter in which an inflation lumen and a guide wire lumen of a catheter tube are integrated.

The invention provides a medical device (10) for use within the human body, which includes a catheter tube (12) having a distal end and a proximal end, an inflation passage (30) defined within the catheter tube having an outlet (32), at least one balloon module (38) which has a first end (40) and a second end (42) which engage the catheter tube to envelop the outlet, and between which an outer wall (50), a closed perimeter (44), and an inner wall (52) is disposed to define an inflation enclosure (55), and a cavity (53) defined within the inner wall, wherein the balloon component is inflatable by inflow of an inflation fluid through the inlet into the inflation enclosure from a deflated state to an inflated state, wherein the balloon has at least one bond zone (54) within which the inner wall is bonded directly to the outer wall, and wherein, in the inflated state, the outer wall and at least part of the inner wall move radially outwardly relatively to the longitudinal axis of the catheter to cause expansion of the cavity and to radially space apart the closed perimeter from the longitudinal axis of the catheter.