A medical retrieval device, comprising: a handle coupled to a retrieval basket via an extension member and a constriction member, said extension member and said constriction member slidably engaged with at least one lumen (160, 170) of a catheter, said catheter and said at least one lumen (160, 170) extending longitudinally away from said handle toward said retrieval basket; said retrieval basket having a plurality of legs extending away from said catheter in a longitudinal direction, each leg of said plurality of legs having a proximal end adjacent a basket end of said extension member and each leg of said plurality of legs having a distal end extended in said longitudinal direction away from said basket end of said extension member; said retrieval basket having an open retrieval end defined by a basket rim that is engaged with each said distal end of each leg of said plurality of legs, said basket rim substantially defining a rim plane that is substantially transverse to said longitudinal direction, said basket rim movable between an expanded rim position and a constricted rim position, wherein when in said constricted rim position said basket rim is capable of constricting onto an object; said extension member movable between an extended position and a retracted position to cause corresponding extension and retraction of said basket relative to said basket end of said extension member; said constriction member movable between a first position and a second position to cause corresponding constriction and expansion of said basket rim; wherein said constriction member engages said plurality of legs to form said basket rim; characterized in that said constriction member includes a distal end and a proximal end, wherein said distal end of said constriction member is fixedly engaged to said distal end of a first leg of said plurality of legs, said constriction member extends circumferentially around said basket rim from said distal end of said first leg by slideably engaging said distal ends of each subsequent adjacent said leg of said plurality of legs about said basket rim before returning to slideably engage said distal end of said first leg towards said proximal end of said constriction member adjacent said at least one lumen (160, 170) of said catheter. a handle coupled to a retrieval basket via an extension member and a constriction member, said extension member and said constriction member slidably engaged with at least one lumen (160, 170) of a catheter, said catheter and said at least one lumen (160, 170) extending longitudinally away from said handle toward said retrieval basket; said retrieval basket having a plurality of legs extending away from said catheter in a longitudinal direction, each leg of said plurality of legs having a proximal end adjacent a basket end of said extension member and each leg of said plurality of legs having a distal end extended in said longitudinal direction away from said basket end of said extension member; said retrieval basket having an open retrieval end defined by a basket rim that is engaged with each said distal end of each leg of said plurality of legs, said basket rim substantially defining a rim plane that is substantially transverse to said longitudinal direction, said basket rim movable between an expanded rim position and a constricted rim position, wherein when in said constricted rim position said basket rim is capable of constricting onto an object; said extension member movable between an extended position and a retracted position to cause corresponding extension and retraction of said basket relative to said basket end of said extension member; said constriction member movable between a first position and a second position to cause corresponding constriction and expansion of said basket rim; wherein said constriction member engages said plurality of legs to form said basket rim; characterized in that said constriction member includes a distal end and a proximal end, wherein said distal end of said constriction member is fixedly engaged to said distal end of a first leg of said plurality of legs, said constriction member extends circumferentially around said basket rim from said distal end of said first leg by slideably engaging said distal ends of each subsequent adjacent said leg of said plurality of legs about said basket rim before returning to slideably engage said distal end of said first leg towards said proximal end of said constriction member adjacent said at least one lumen (160, 170) of said catheter.