Each needle can be used only once

[RobertArthur]

Progress has been made.

[widge]

Interesting really, i saw an old Repair Shop the other day, and somebody brought in an old top of the range for its time cylinder phonograph for repair, and that had a sapphire stylus, yet early record players only used simple one use steel needles.

[Blaze]

When I saw the heading I thought of surgical needles

[RobertArthur]

Some surgeons err on the side of caution and, for example, leave a pair of surgical scissors inside the patient to ensure that this piece of surgical equipment can never be used a second time. One such case occurred in Italy, where a woman walked around for months as a sort of secure, walking human safe to protect 15 cm scissors. Safety first.