The catheter is maneuvered through the tortuous and stenotic cerebral circulatory system to an embolism.

A hemodialysis graft has one end provided with a deposit containing an anti-stenotic agent.

An atherectomy system for removing a stenotic lesion from within a vessel of a patient is disclosed.

Such catheter construction is also useful when there is a need to implant a stent into a dilated stenotic region to maintain its patency.

Also provided are devices and methods for inserting said dilator into a stenotic opening of a paranasal sinus in a subject.

An enzymatic RNA molecule which cleaves mRNA associated with development of maintenance of an inflammatory disease, an arthritic condition, a stenotic condition, or a cardiovascular condition.

Dilators and methods for dilating a stenotic recess of a frontal sinus in a subject using minimally invasive insertion procedures are provided.

Actuation of the core element (e.g., oscillation, reciprocation, and/or rotation) creates a passage through the occlusive or stenotic material in the body lumen.

Prosthetic valves implantation methods and systems, especially as related to fitting a prosthetic valve at the site of a native stenotic or incompetent valve are described.

The stenotic tissue is removed by pulling the distal tip back in a retrograde direction while the cut tissue is captured in the collecting means (17).

Then stenotic breathing is observed constantly; the child becomes restless, there is cyanosis of the lips, face and limbs.

Prosthetic valves implantation methods and systems, especially as related to preparing the native site of a native stenotic or incompetent aortic valve for receipt of a prosthetic replacement valve are described.

Devices that are adapted to insert a sinus dilator into a stenotic opening of a paranasal sinus in a subject patient using minimally invasive insertion procedures are provided.

The protruding portion creates a volume of revolution as the asymmetrical tip rotates, which facilitates crossing a vascular occlusion by displacing and exerting pressure on stenotic material causing the occlusion.

The groove(s) provide improved efficacy in the abrasion of non-calcified and/or soft tissue as well as provide a means for breaking the hydraulic wedge between the abrading head and the stenotic tissue.