Actuating constraining mechanism

Details Actuating constraining mechanism Actuating constraining mechanism

A - Human Necessities

61

F

A61F 2/01 (2006.01)

Patent

CA 2538565

Disclosed is a constraining mechanism that enhances the strength of a medical device, while also preventing over expansion of the device during a procedure. The medical device (100) includes a plurality of biased struts (118) to which a constraining mechanism (114) is coupled. The constraining mechanism (114) includes a spine (140), which couples to one of the plurality of struts (118), and one or more branches (142,144,146) extending from the spine (140). The branches (142,144,146) have a curvature enabling the branches to substantially surround the plurality of struts (118) while at the same time avoiding contact with the wall of the blood vessel of the patient when the medical device is deployed.

L'invention concerne un mécanisme de contrainte permettant d'améliorer la résistance d'un dispositif médical et d'empêcher également l'expansion du dispositif pendant une intervention. Le dispositif médical comprend une pluralité d'entretoises sollicitées auxquelles le mécanisme de contrainte est couplé. Le mécanisme de contrainte comprend un dos se couplant à une entretoise et un ou plusieurs segments s'étendant à partir du dos. Les segments présentent une courbure leur permettant d'entourer sensiblement la pluralité d'entretoises et d'éviter, en même temps, un contact avec la paroi d'un vaisseau sanguin d'un patient quand le dispositif médical est déployé.

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