Needlescopic surgery, which uses surgical instruments shrunk to the diameter of a sewing needle, is the ultimate form of minimally invasive surgery. The needle-sized incisions it requires are so small that they can be sealed with surgical tape and usually heal without leaving a scar.  Although it’s been around since the 1990s, the technique, which is also called mini- or micro-laparoscopy, is so difficult that … Continue reading New needle-sized surgical robot given ‘wrists’.