A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/00 (2006.01) A61B 5/107 (2006.01) A61M 25/10 (2006.01)
Patent
CA 2369743
A design and method of manufacture are disclosed for a cavity measurement device used during surgical procedures. The cavity measurement device includes an inflation tube assembly comprising an elongated tube having a distal end and a proximal end and a balloon mounted at the distal end of the elongated tube. The elongated tube and the balloon comprise dissimilar materials and include an adhesive free seal between the elongated tube and the balloon. The inflatable balloon is inserted into a cavity and inflated with a volume of fluid, whereby the balloon volume represents the cavity volume. The mechanical attachment of the balloon onto the tube is substantially leakproof and has an attachment strength greater than the balloon material tensile strength. The mechanical attachment of the present invention substantially eliminates the potential for bond separation and preparatory operations typically associated with adhesive bonds.
L'invention concerne la conception et le procédé de fabrication d'un dispositif servant à mesurer une cavité pendant des interventions chirurgicales. Ce dispositif comprend un ensemble tube de gonflage composé d'un tube allongé possédant une extrémité distale et une extrémité proximale, ainsi que d'un ballonnet monté à l'extrémité distale du tube allongé. Ce dernier et le ballonnet sont composés de matériaux différents et comportent un joint libre adhésif entre le tube allongé et le ballonnet. On introduit ce ballonnet gonflable dans une cavité et on le gonfle au moyen d'un volume de liquide, le volume du ballonnet représentant alors le volume de la cavité. La fixation mécanique du ballonnet sur le tube est pratiquement étanche et sa force est supérieure à la résistance à la traction du matériau composant le ballonnet. Cette fixation mécanique permet d'éliminer l'éventualité de séparation du joint d'adhérence et, également, les opérations préparatoires normalement associées à ces joints.
American Medical Systems Inc.
Smart & Biggar
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