Medical devices with echogenic coatings

Details Medical devices with echogenic coatings Medical devices with echogenic coatings

A - Human Necessities

61

L

A61L 31/00 (2006.01) A61B 8/08 (2006.01) A61L 31/14 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2340746

A medical device for insertion into human body having an echogenic portion of enhanced visibility in an ultrasound scan. The echogenic portion includes an echogenic material comprising a plastic impregnated with sonically reflective particles, the particles having an average size of less than 500 nanometers and formed of a substance having a specific gravity of 5 or greater. Preferably the particles have an average size of less than 100 nanometers and the sonically reflective particles are 5 % to 40 % of the echogenic material.

L'invention concerne un dispositif médical à introduire dans le corps humain, qui possède une partie échogène à visibilité améliorée lors d'une échographie. La partie échogène comporte une matière échogène se composant d'une matière plastique imprégnée de particules réfléchissant les ultrasons, lesdites particules ayant une taille moyenne inférieure à 500 nanomètres et étant formées de substance d'une densité supérieure ou égale à 5. Ces particules ont, de préférence, une taille moyenne inférieure à 100 nanomètres et les particules réfléchissant les ultrasons se composent de 5 à 40 % de matière échogène.

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