Glaucoma shunt

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/00 (2006.01)

Patent

CA 2568207

A glaucoma shunt includes a plate having filtration and fixation portions. In some embodiments the filtration portion includes a surface provided with stiffening ribs which increase rigidity and an upper surface provided with a ridge. The fixation portion extends anteriorly to facilitate access thereto. A drainage tube is recessed within the plate and extends through the ridge to a central portion of the filtration portion. By emptying the tube at the central portion of the filtration portion, the tube outlet is distanced from perimetric scar tissue which can otherwise obstruct the tube outlet. The ridge keeps tissue over the plate spaced from the outlet of the tube to further facilitate drainage.

L'invention concerne un shunt de traitement du glaucome, qui comprend une plaque présentant une partie de filtration et une partie de fixation. Dans certains modes de réalisation, la partie de filtration présente une surface munie de nervures de renfort qui augmentent la rigidité, et une surface supérieure munie d'une crête. La partie de fixation s'étend vers l'avant pour en faciliter l'accès. Un tube de drainage est encastré dans la plaque et traverse la crête jusqu'à une partie centrale de la partie de filtration. En vidant le tube au niveau de la partie centrale de la partie de filtration, la sortie du tube se place à distance d'un tissu cicatriciel périmétrique qui pourrait autrement obstruer la sortie du tube. La crête maintent le tissu sur la plaque à distance de la sortie du tube pour faciliter encore le drainage.

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