The influence of tool quality on the machining of additive manufactured and powder metallurgy titanium alloys.

This study was carried out to investigate the impact the quality of the drill bits has on the machining behavior of additive manufacturing (AM) and powder metallurgy (PM) titanium alloys. Therefore, commercially available drill bits which typically reflect two extremes of drill bit quality were selected. The performance of coated carbide twist drills, typically recommended for the drilling of wrought titanium alloys was compared with that of high-speed steel (HSS) drills.

Intravesical migration and spontaneous expulsion of a Hem-o-lok polymer ligating clip after laparoscopic radical prostatectomy.

We present a rare postoperative complication occurring after a laparoscopic radical prostatectomy with nerve-sparing procedure carried out with the placement of 3 Weck Hem-o-lok-L clips in the right neurovascular bundle, in a patient with clinically localized prostate cancer. The procedure was completed without any complications and the urethral catheter was removal at 15 days. We report a case of intravesical migration and subsequent calculus formation with spontaneous expulsion of Hem-o-lok clip.