An angioplasty device may comprise a catheter, a balloon disposed on the catheter, and a scaffold disposed over the balloon. The scaffold may comprise an electrospun polymer fiber and an agent dispersed within the fiber. A method of making such an angioplasty device may comprise obtaining a catheter having a balloon disposed on it, contracting the balloon, and electrospinning a polymer solution onto the surface of the catheter having the balloon, thereby forming a scaffold disposed over the balloon. The polymer solution may comprise a polymer, a solvent, and an agent. A method of performing an angioplasty procedure may comprise inserting such an angioplasty device into a blood vessel, placing the angioplasty device near a lesion within the blood vessel, expanding the balloon, thereby contacting the lesion with the scaffold, contracting the balloon, and removing the angioplasty device from the blood vessel.

A system and accompanying methods for treating a blockage of the superior femoral artery including utilization of a puncture insertion mechanism, an introducer sheath, a guide catheter and an expandable device. Entry into the body is established through the popliteal and advancing retrograde through the popliteal artery toward the lower superior femoral artery region and in some embodiments utilizing an introducer sheath, a guide catheter and a balloon are featured.

A catheter includes a shaft, a sealing balloon, a bifurcation sealing element and a camera. The shaft has a distal end for insertion into a clotted blood vessel of a brain of a patient. The sealing balloon, which is fitted at a proximal section of the distal end, is configured to proximally seal a portion of the clotted blood vessel. The bifurcation sealing element is fitted at the distal end, distally to the sealing balloon, and is configured to seal a bifurcation located at the proximally sealed portion of the clotted blood vessel. The camera, which is fitted at a distal edge of the distal end, is configured to visually image a clot that clots the blood vessel.

Shown and described is electrophysiology catheter end effector having a balloon with three expandable membranes attached to each other such that wiring (for the electrodes or other sensors on the membrane surfaces) no longer extend from inside the first membrane yet at the same time is captured between the first membrane and a second membrane.

A catheter including an elongated tube having a channel; an inflatable chamber coupled to the elongated tube and in fluid communication with the channel; and a high-density liquid delivery system in fluid communication with the channel, the high-density liquid delivery system delivering a high-density liquid to the inflatable chamber via the channel to cause the inflatable chamber to expand.

An implant may be affixed to a cardiac valve annulus by an apparatus that includes a catheter with a first actuatable bending section and a support structure affixed to the distal end of the catheter. Support arms extend distally beyond the support structure. In some embodiments, a shaft with a second actuatable bending section is permanently positioned between the support arms, and an inflatable balloon surrounds at least a portion of the shaft. In other embodiments, a subassembly that includes a shaft with a second actuatable bending section and an inflatable balloon is slidably mounted so that it can move from an initial position that is spaced apart from the support structure to a second position where the balloon is between the at least four support arms. In either case, actuating the second bending section when the balloon is inflated will move the support arms that support the implant.

A balloon catheter is disclosed which allows easier fusion-bonding between an inner tube shaft and an outer tube shaft and in which the inner tube shaft can be prevented from being warped when the inner tube shaft passes through a stenosed site, and a method of manufacturing such a balloon catheter. The balloon catheter includes an inner tube shaft having a first layer and a second layer located on an inner surface side of the first layer. The outer tube shaft is fusion-bonded to the first layer and recessed toward the inner tube shaft side. The first layer is formed of a material having higher optical absorption property than the outer tube shaft and the second layer. The second layer is formed of a material having a melting point higher than that of the first layer.

A container replacement system for replacing a fluid container with a replacement fluid container, wherein the fluid container contains a cryogenic fluid and is coupled to a pressure line, includes a control valve that vents the cryogenic fluid within the pressure line, a pressure sensor that senses a line pressure of the cryogenic fluid and generates sensor output and a controller that receives sensor output and determines whether to replace the fluid container. If the line pressure is below a threshold line pressure, the controller determines replacing the fluid container is permissible. Contrarily, if the line pressure is above the threshold line pressure, the controller determines replacing the fluid container is not permissible. The container replacement system further includes a GUI that instructs whether replacing the fluid container is permissible.

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.

Provided is a balloon for a balloon catheter that can suppress circumferential fracture by generating longitudinal axial fracture in the central part of the balloon, and prevent the fracture in the longitudinal axis direction from extending to the proximal or distal side of the balloon to form a L-shaped crack by keeping the longitudinal fracture within the straight tubular part. A balloon (2) for a balloon catheter has a main orientation direction of the molecular orientation in a proximal section (23a) and a distal section (23e) of a straight tubular part (23) is the circumferential direction z, and a component of the molecular orientation in the longitudinal axis direction x in the central section (23c) of the straight tubular part (23) is more than a component in the longitudinal axis direction x in the proximal section (23a) and the distal section (23e) of the straight tubular part (23).