68 results about "Cutting balloon" patented technology

An angioplasty balloon catheter and method of making and using the same. The balloon catheter may include a catheter shaft and a balloon coupled to the shaft. The balloon may include one or more cutting edges or member and may include a plurality of chambers defined therein.

A system for treatment of a vessel lesion comprises an expandable balloon and at least one cutting blade engaged to an exterior surface of the balloon. At least a portion of the cutting blade has a substantially serpentine configuration defined by a plurality of interconnected peaks and troughs wherein each trough is in closer proximity to the balloon than each peak.

A cutting balloon assembly and a method for fabrication of the assembly is described. The cutting balloon assembly comprises a delivery catheter, an expandable balloon mounted on the catheter distal end, and a scoring mesh disposed around the expandable balloon. The scoring mesh comprises interlacing filaments that extend from a mesh proximal end towards a mesh distal end, form distal filament loops at said mesh distal end, and then return to the mesh proximal end. At least a part of the interlacing filaments forms one or more permanent links with neighboring filaments between the mesh proximal end and the mesh distal end.

A cutting balloon catheter assembly (100) including a dual lumen catheter (130) having a distal end (134), an inflation/deflation lumen (138) and a second or guidewire lumen (136). The assembly further includes an inflatable balloon (110) having an interior cavity (116) and an expandable covering (120) disposed about the balloon wherein the covering has an array of cutting edges. In the assembly, the balloon (110) is fixedly connected to the distal end (134) of the catheter and the interior cavity (116) of the balloon (110) is in fluid communication with the first lumen (138) of the catheter (130). A method of removing obstructions (149) from vessel walls (154) using the present invention is also disclosed wherein the cutting edges abrade the stenoses, plaque or lesions along the vessel walls, when the catheter assembly is reciprocally moved longitudinally or rotationally after inflation of the balloon.

Physical property changes in materials between body temperature and a cryotreatment temperature are used to benefit auxiliary functional structures on a cryotherapy device. The auxiliary functional structures may be drug delivery coatings, cutting balloon blades, balloon stiffeners or force concentrators.

A cutting balloon catheter and methods of making and using the same. The balloon catheter may include a catheter shaft having a balloon coupled thereto. A cutting member or blade may be coupled to the balloon. The cutting member may include one or more traction members or a traction region that can, for example, improve traction between the balloon and a target site.

An angioplasty balloon catheter and method of making and using the same. The balloon catheter may include a catheter shaft and a balloon coupled to the shaft. The balloon may include one or more cutting edges or member and may include one or more wings. The wings may include an undulating surface.

A cutting balloon catheter and method of making and using the same. The cutting balloon catheter may include a catheter shaft having a balloon coupled thereto. One or more cutting members or blades may be coupled to the balloon. The cutting members may configured to be more flexible.

A cutting balloon catheter and method of making and using the same. The cutting balloon catheter may include a catheter shaft having a balloon coupled thereto. One or more cutting members or blades may be coupled to the balloon. The cutting members may include two or more sections that are connected via a fracturable or yielding bridge section that increases flexibility when passing through or being utilized in tortuous anatomy.

A directional cutting balloon for incising an eccentric lesion in a body conduit includes an inflatable balloon having a distal end and a proximal end. The distal balloon end is attached to a distal tube and the proximal balloon end is attached to a proximal tube. The distal tube is formed with a guidewire lumen and substantially centered along a guidewire axis. The balloon, which is typically formed with a cylindrical working section that defines a balloon axis, is offset from the guidewire axis. Specifically, when the balloon is inflated, the balloon axis is aligned parallel to and offset from the guidewire axis. One or more elongated incising elements are mounted longitudinally on the balloon. During a balloon inflation, the balloon expands eccentrically relative to the guidewire axis to thereby advance the incising element in a pre-selected direction and into an eccentric lesion.

The invention provides a cutting balloon which comprises a balloon body and a cutting wire, wherein the cutting wire is arranged in the radial direction of the outer surface of the balloon body, the two ends of the cutting wire are respectively fixed on the two ends of the balloon body, and the cutting wire comprises a foldable structure. Compared with the prior art, the cutting balloon has betterpassing ability as the flexible cutting wire is arranged on the surface of the cutting balloon; furthermore, the cutting balloon can cut plaque tissues in expansion and has small damage to inner membranes; meanwhile, the cutting wire is fixed to the surface of the cutting balloon or can slide in the telescopic direction, so that the problem of displacement or winding in a cutting process is avoided; furthermore, the foldable structure not only can provide axial length compensation for the cutting wire in expansion of the balloon, but also can improve friction between the balloon body and blood vessel walls; thus, the balloon is prevented from displacement.

The invention relates a medicine-carrying cutting balloon dilating catheter. The medicine-carrying cutting balloon dilating catheter comprises a cutting balloon dilating catheter body and a medicine coating, wherein the cutting balloon dilating catheter body comprises a balloon, the surface of the balloon is provided with a plurality of blades, and the medicine coating is coated on the surfaces of the balloon and the blades. The medicine-carrying cutting balloon dilating catheter can cut plaques in vessels and fully dilate to be well adhered to arterial walls by pressing the plaques, so that not only subsequent inflammatory responses are reduced, but also the dilation of lumen reduces the restenosis rate. Besides, the medicine coating can restrain the intimal hyperplasia of the vessel inner surface which is damaged by squeezing. Particularly for a bended complex lesion location where a stent cannot reach, the superior advantages of the medicine-carrying cutting balloon dilating catheter are significant.