Intramedullary pin

Intramedullary pin comprising:

• a head;
• a bundle comprising a plurality of stems having a slightly curved shape and being elastically deformable, each of said stems having a proximal end and a distal end, the proximal ends of said stems being fastened to said head and the distal ends of said stems being free;
• retaining means for keeping said stems close to one another;
• wherein said retaining means comprise a slider which is provided with seats suitable for housing and retaining said stems, said seats being provided at least in the same number as said stems, and which is able to slide along said bundle of said stems from the distal end to the proximal end thereof, and vice versa, whereby, between the proximal ends of the stems and a position of the slider, said stems are kept close to one another, whereas, between the position of the slider and the distal ends of the stems, said stems are free to spread apart by virtue of their curved shaped and elastic deformability,
• wherein said slider has a body having a shape of a solid of revolution and said seats are provided along an outer circumference of said body, wherein said body comprises a central portion and tapered end portions, and wherein said body has a maximum outer diameter that is smaller than a diameter of a circumference circumscribing said bundle of said stems where said stems are kept close to one another at the position of the slider.