• vascular
  • Added Smith, "There are approximately 20 million patients with peripheral vascular disease who could benefit from this multi-purpose approach to catheter design, and we are excited to bring this innovative peripheral access product to market. (aol.com)
  • Balloon dilatation catheters are used in the treatment of a variety of vascular conditions. (google.co.uk)
  • Among the more frequent uses for balloon dilatation catheters is in vascular angioplasty of the peripheral and coronary arteries, by which arteries obstructed by plaque (formed by fatty deposits such as cholesterol) are dilated to improve blood flow through the artery. (google.co.uk)
  • While OTW Catheters may still be useful in highly tortuous vascular pathways, they sacrifice deflation time and pushability. (wikipedia.org)
  • Angioplasty has come to include all manner of vascular interventions that are typically performed percutaneously. (wikipedia.org)
  • Angioplasty requires an access vessel, typically the femoral or radial artery or femoral vein to permit access to the vascular system for the wires and catheters used. (wikipedia.org)
  • Hematoma or pseudoaneurysm formation at the access site Radiation Injuries Radiation induced injuries (burns) from the X-Rays used Angioplasty may also provide a less durable treatment for atherosclerosis, and be more prone to restenosis, relative to vascular bypass or coronary artery bypass grafting. (wikipedia.org)
  • The use of tapered Teflon dilating catheters for the treatment of atherosclerotic vascular disease was first described in 1964 by two interventional radiologists, Charles Dotter and Melvin Judkins, when they used it to treat a case of atherosclerotic disease in the superficial femoral artery of the left leg. (wikipedia.org)
  • Inflatable
  • An inflatable balloon (14) for a catheter (10) includes a coating (15) which causes the balloon to prefer a predetermined, low profile configuration, such as a trifold configuration (40), when deflated. (google.co.uk)
  • 1. An inflatable single layered balloon for a medical device comprising a polymeric material, the polymeric material being a substantially unblended copolymer of polybutylene terephthalate and polytetramethylene ether glycol terephthalate, the copolymer having a flexural modulus of greater than about 150,000 psi. (google.com)
  • Foley catheter, a catheter with an inflatable balloon to retain it in the urinary tract. (wikipedia.org)
  • lumen
  • The shaft has a lumen therethrough with the lumen being in fluid communication with the balloon interior for inflating and deflating the balloon via the shaft lumen. (google.com)
  • The catheter further includes a lumen extension through the balloon, with the lumen extension being in fluid communication with the shaft lumen. (google.com)
  • The resistance to fluid flow past the guide wire in the lumen extension is substantially greater than the resistance to fluid flow between the shaft lumen and the balloon interior. (google.com)
  • A valve member is responsive to the pressure in the balloon interior for blocking fluid flow through the lumen extension during continuing inflation and at least the initial deflation of the balloon. (google.com)
  • stenosis
  • Evidence has shown that cutting the stenosis, for example with an angioplasty balloon equipped with a cutting blade, during treatment can reduce incidence of re-stenosis. (google.ca)
  • Angioplasty is occasionally used to treat venous stenosis, such as stenosis of the subclavian vein caused by thoracic outlet syndrome. (wikipedia.org)
  • To treat a narrowing in a blood vessel, a wire is passed through the stenosis in the vessel and a balloon on a catheter is passed over the wire and into the desired position. (wikipedia.org)
  • His other procedural specialties include the catheter-based treatment of mitral and aortic stenosis (balloon valvuloplasty). (wikipedia.org)
  • A catheterization laboratory or cath lab is an examination room in a hospital or clinic with diagnostic imaging equipment used to visualize the arteries of the heart and the chambers of the heart and treat any stenosis or abnormality found. (wikipedia.org)
  • Aortic
  • citation needed] Later that same year, while performing an aortic root aortography, Mason Sones, a pediatric cardiologist at the Cleveland Clinic, noted that the catheter had accidentally entered the patient's right coronary artery. (wikipedia.org)
  • inflation
  • Each lesion was dilated three times with the autoperfusion inflation bracketed between two inflations by standard angioplasty catheters. (ahajournals.org)
  • Inflation duration during autoperfusion angioplasty (513 +/- 303 seconds) was longer than for the pre- (107 +/- 55 seconds, p = 0.0004) and post- (139 +/- 71 seconds, p = 0.0006) standard dilatations. (ahajournals.org)
  • We conclude that this autoperfusion catheter significantly reduces ischemic symptoms and signs during coronary angioplasty, allowing prolonged periods of balloon inflation. (ahajournals.org)
  • The coating (15) is set while the balloon is in the predetermined low-profile deflated configuration so that after inflation, the coating acts to urge the balloon to return to the low profile configuration as the balloon is deflated. (google.co.uk)
  • 5. A balloon as in claim 1 wherein said inflation pressure is at least 13 atmospheres. (google.co.uk)
  • 18. A dilatation catheter comprising a dilatation element and inflation means therefor, the dilatation element comprising a balloon as in claim 1. (google.co.uk)
  • 11. The balloon catheter of claim 7 wherein the radially semi-compliant and axially noncompliant balloon has a radial compliance of less than about 0.045 mm/atm within an inflation pressure range of about 6 atm to about 19 atm, and an axial compliance of about 0.1 mm/atm to about 0.25 mm/atm within an inflation pressure range of about 6 atm to about 14 atm. (google.com)
  • Relative to surgery, angioplasty is a lower-risk option for the treatment of the conditions for which it is used, but there are unique and potentially dangerous risks and complications associated with angioplasty: Embolization, or the launching of debris into the bloodstream Arterial rupture from over-inflation of a balloon catheter or the use of an inappropriately large or stiff balloon, or the presence of a calcified target vessel. (wikipedia.org)
  • insertion
  • They also have a live view of the patients ECG so they can tell whether or not there is a problem being caused by the insertion of the catheter into the heart to the electrical pathways. (wikipedia.org)
  • renal
  • Atherosclerotic obstruction of the renal artery can be treated with angioplasty with or without stenting of the renal artery. (wikipedia.org)
  • Arterial
  • 2017 Cordis received the CE Mark for its new RAILWAY™ Sheathless Access System, which enables direct access to the radial artery with a guiding catheter and eliminates the need for an introducer sheath, reducing the size of the arterial puncture site up to 2F compared to a conventional sheath system. (wikipedia.org)
  • This was a substantial improvement over bypass surgery in terms of invasiveness, but unfortunately restenosis, a recurrence of arterial clogging, occurred in nearly 50% of patients after the balloon was removed. (wikipedia.org)
  • Teflon is commonly used to reduce friction in biomaterial applications such as in arterial grafts, catheters, and guide wire coatings. (wikipedia.org)
  • The consultant cardiologist is responsible for gaining arterial access, inserting a sheath into either the radial or femoral artery, passing a wire and catheter into the coronary artery and selectively injecting contrast media into the coronary arteries. (wikipedia.org)
  • guidewire
  • The balloon catheter is advanced over a guidewire so that the balloon is positioned adjacent a stenotic lesion. (google.ca)
  • This innovative combination enables physicians to perform high-pressure angioplasty and inject physician-specified fluids, such as contrast, all while maintaining the guidewire position. (aol.com)
  • shaft
  • The balloon catheter may include a catheter shaft and a balloon coupled to the shaft. (google.ca)
  • b) a radially semi-compliant balloon on the shaft, formed at least in part of a polyurethane block copolymer, and having a radial compliance of about 0.025 mm/atm to about 0.045 mm/atm. (google.com)
  • b) an axially noncompliant balloon on the shaft, formed at least in part of a block copolymer. (google.com)
  • The resulting balloon will be better adapted to collapse to a low profile about the catheter shaft on which it is mounted. (google.co.uk)
  • Chest
  • Maximal chest pain score during autoperfusion (3.2 +/- 3.5) was lower than for the pre- (6.1 +/- 2.1, p = 0.003) but not the post- (5.2 +/- 3.1, p = 0.07) standard angioplasty. (ahajournals.org)
  • length of the balloon
  • 7. The invention as set forth in claim 1 wherein prior to step (a) both ends of the elongated tube are stretched leaving an un-stretched section between the stretched ends that has a length that is less than the length of the balloon to be formed and which un-stretched section is expanded into the balloon. (google.com)
  • Claims
  • 7. A catheter as defined in any one of claims 1-3 wherein the support wire is formed from a moderately radiopaque material. (google.com)
  • 3. A balloon as defined in claims 1 or 2 wherein the layers are in intimate adhesive-free contact with each other. (google.co.uk)
  • 4. A balloon as defined in claims 1 or 2 wherein the more inwardly disposed layers are of overall greater length than the more outwardly disposed layers. (google.co.uk)
  • treatment
  • Some balloons are used for decorative purposes or entertaining purposes, while others are used for practical purposes such as meteorology, medical treatment, military defense, or transportation. (wikipedia.org)
  • Thrombolytic therapy is indicated for the treatment of STEMI - if it can begin within 12 hours of the onset of symptoms, and the person is eligible based on exclusion criteria, and a coronary angioplasty is not immediately available. (wikipedia.org)