A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/10 (2006.01) A61M 25/00 (2006.01) A61M 29/02 (2006.01)
Patent
CA 2431427
An intravascular drug delivery balloon catheter (10) incorporating a highly compliant balloon (14) having a plurality of infusion holes (15). The highly compliant balloon elastically expands at a low inflation pressure (e.g., less than 1.0 ATM), and preferably has a compliance of 2.0 mm/ATM or more at pressures less than 2.0 ATM. A pressure relief (30) valve may be incorporated into the catheter to avoid over pressurization. The infusion holes may be open when the balloon is deflated and may enlarge when the balloon is inflated. The balloon may define a single lobe or two inflatable lobes with the infusion holes disposed therebetween.
L'invention porte sur un cathéter d'administration intravasculaire de médicaments muni d'un ballonnet très souple percé de trous de perfusion. Ledit ballonnet, qui en raison de son élasticité gonfle sous une faible pression (par exemple sous moins de 1 Atm), présente de préférence une élasticité de 2,0 mm/Atm sous une pression de 2,0 Atm, et peut comporter une soupape de sécurité évitant les surpressions. Les trous de perfusion peuvent être ouverts quand le ballon est dégonflé et s'élargir quand le ballon est gonflé. Le ballon peut présenter un seul lobe ou deux lobes, les trous de perfusion étant alors placés entre eux.
Chien Thomas Yung-Hui
Cornil Alain
Nita Henry
Boston Scientific Limited
Cassan Maclean
Chien Thomas Yung-Hui
Cornil Alain
Nita Henry
LandOfFree
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