DILATATION BALLOON HAVING A VALVED OPENING AND RELATED CATHETERS AND METHODS

• Main Authors: SCOPTON, PAUL, CHIN, YEM, VU, LIEM
• Format: Patent
• Language: English; French
• Published: 01.09.2005
• Edition: 7
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

Dilation catheters including a mechanism used in, for example, removing gas or air from the catheters are disclosed. A dilation catheter may include an elongated tubular member having a distal end and a proximal end, a proximal handle proximate the proximal end of the tubular member, and an inflatable balloon proximate the distal end of the tubular member with inflatable balloon being in fluid communication with a fluid port to supply inflation liquid to the inflatable balloon. The inflatable balloon may include an opening for permitting gas to exit the inflatable balloon. In the proximate location of the opening, an expandable material or a barrier material that permits gas to exit through the opening, while retaining inflation liquid in the inflatable balloon. L'invention concerne des cathéters de dilatation comportant un mécanisme servant, par exemple, à évacuer des gaz ou de l'air des cathéters. Un cathéter de dilatation peut comporter un élément tubulaire allongé ayant une extrémité distale et une extrémité proximale, un manche proximal à proximité de l'extrémité proximale de l'élément tubulaire, et un ballonnet gonflable à proximité de l'extrémité distale de l'élément tubulaire, le ballonnet gonflable étant en communication fluidique avec un port de fluide pour alimenter le ballonnet gonflable en liquide de gonflage. Le ballonnet gonflable peut comporter une ouverture qui permet au gaz de s'en échapper. A l'emplacement à proximité de l'ouverture, un matériau expansible ou un matériau barrière permet au gaz de s'échapper par l'ouverture, tout en retenant le liquide de gonflage dans le ballonnet gonflable.