Penile prosthesis implantation device

1. A penile prosthesis implantation device comprising:

a barrel having a bore, a distal end of the barrel including a stop member;

an obturator having a distal end that is received within the bore and configured to slide along a longitudinal axis of the bore relative to the barrel; and

a needle clamp at the distal end of the obturator configured to hold a thread attachment end of a needle;

wherein:

a portion of the distal end of the obturator is configured to engage the stop member to limit the distance the distal end of the obturator may travel toward the distal end of the barrel along the longitudinal axis; and

the stop member and the portion of the distal end of the obturator prevent the needle clamp from extending outside the distal end of the barrel.

2. The device of claim 1 , wherein the needle clamp comprises opposing pinching surfaces that are displaced from an interior wall of the barrel, and a receptacle between the pinching surfaces configured to receive a thread attachment end of a needle and hold the end of the needle through an interference fit with the pinching surfaces.

3. The device of claim 2 , wherein the distal end of the obturator includes one or more bore engaging members, each bore engaging member radially separated from a central portion of the distal end of the obturator by a gap, and having a surface that is configured to engage the interior wall.

4. The device of claim 3 , wherein the surface of each of the one or more bore engaging members is radially displaced from the longitudinal axis a greater distance than the remainder of the distal end of the obturator.

5. The device of claim 4 , wherein the one or more bore engaging members deflect toward the longitudinal axis responsive to contact with the interior wall of the bore.

6. The device of claim 5 , wherein the one or more bore engaging members comprise a ring-shaped member that is coaxial to the longitudinal axis.