Apparatus for delivering shape memory alloy staples

Details Apparatus for delivering shape memory alloy staples Apparatus for delivering shape memory alloy staples

A - Human Necessities

61

B

A61B 17/072 (2006.01) A61B 17/064 (2006.01)

Patent

CA 2715220

Some embodiments relate to an apparatus comprising: a plurality of chambers for receiving an associated plurality of staples, each formed with a shape memory that allows the staple to adopt a straightened configuration, when placed in a stapler, and a deployed configuration for suturing when released from the stapler; and a sleeve moveable relative to the chambers between a first position in which the staples are trapped by the sleeve within the chambers, in the straightened configuration, and a second position whereby the staples are freed to adopt the deployed configuration, wherein the sleeve is adapted to move between the first and second positions by rotating relative to the chambers. The shape memory may be at least partially thermally activated. The apparatus may be in the form of a medical stapler. The apparatus may include a cap for holding a graft on an end of the stapler until the staples are deployed. In another aspect, there is provided a method of fastening using the above- described apparatus.

L'invention concerne un appareil comprenant plusieurs chambres pour recevoir plusieurs agrafes associées, chacune comportant une mémoire de forme qui permet à l'agrafe d'adopter une configuration redressée, lorsqu'elle est placée dans une agrafeuse, et une configuration déployée pour suturer lorsqu'elle est libérée de l'agrafeuse.

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