Patent ID: 11857228
Assignee: STRYKER EUROPEAN OPERATIONS LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. An intramedullary intertrochanteric fracture fixation device, comprising:
an intramedullary nail having a longitudinal axis, a proximal portion and a distal portion, the proximal portion defining an angulated opening and an axial bore extending through a proximal end of the intramedullary nail along the longitudinal axis and into the angulated opening, the proximal portion further having a compartment defined by an upper stop, a lower stop and a sidewall, the sidewall of the compartment defining a slot;
a neck screw extending through the angulated opening and having an exterior surface with a groove; and
a set screw disposed within the compartment of the intramedullary nail, the set screw comprising:
a first member including a proximal portion and a distal portion, the proximal portion including a plurality of flanges being moveable in a radial direction relative to the longitudinal axis between an unlocked condition and a locked condition, the plurality of flanges being annularly spaced from one another to define a first cavity;
a second member including a sidewall extending between a proximal end and a distal end, the sidewall defining a second cavity for receiving the distal portion of the first member, the second member further including an extension extending through the angulated opening and into a groove of the neck screw, and a lateral flange disposed within the slot of the compartment; and
a third member rotatably disposed within the first cavity such that rotation of the third member in a first direction transitions the plurality of flanges from the unlocked condition to the locked condition.