Patent ID: 9399100
Filing Date: 2016-07-26
CPC Classification: A61M

Claim Text:
1. A medical device comprising an outer housing having a first wall defining a first passage with proximal and distal ends, a retraction housing slidably received in the first passage, the retraction housing having proximal and distal ends and a wall with an interior surface wall defining a helical path, a carriage for releasably receiving a medical sharp, the carriage slidably received in the distal end of the retraction housing, latch means for retaining the carriage in a first position in the retraction housing, a follower connected to the carriage and engaged with the helical path, a stored energy device connected to the follower and the carriage, wherein the medical device is characterized by the outer housing, and actuation means operable to move the retraction housing towards the distal end of the first passage, thereby to release the latch means such that the stored energy device is operable to drive the follower along the helical path and to retract the carriage towards the proximal end of the retraction housing.