Improved component mixing catheter

Details Improved component mixing catheter Improved component mixing catheter

A - Human Necessities

61

B

A61B 17/03 (2006.01) A61M 25/14 (2006.01)

Patent

CA 2344280

A dual catheter (360) for delivery of a two component sealant (22) such as a fibrinogen, has coaxial inner and outer catheters (372, 364) respectively, each of which conveys a sealant component (fibrinogen or thrombin). The dual catheter (360) has a mixing volume at its distal end to mix the sealant immediately prior to delivery. The inner catheter (366) is reciprocally movable to clear clogs from the mixing volume. Optional features include a channeled plug-like tip (366) to the inner catheter, and a malleable or resilient material at the distal tip (362) to resist tissue damage.

L'invention concerne un cathéter (360) double permettant la distribution d'un matériau (22) de scellement à deux composants tel que le fibrinogène. Ce cathéter se compose d'un cathéter (364) externe et d'un cathéter (372) interne coaxiaux dont chacun transporte un composant du matériau de scellement (fibrinogène ou thrombine). Ce cathéter (360) double comprend à son extrémité distale un volume de mélange permettant de mélanger le matériau de scellement immédiatement avant sa distribution. Le cathéter(364) interne peut être déplacé selon un mouvement d'aller-retour afin de libérer les obstructions dans le volume de mélange. Ce cathéter peut éventuellement comprendre un embout (366) à canaux de type bouchon qui peut être monté sur le cathéter interne, et un matériau malléable ou élastique sur la pointe (362) distale permettant de prévenir les lésions des tissus.

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