Who invented constructed the Hollow hypodermic needle and injection syringe ?
Over 200 surgical instruments were listed by Abu al-Qasim al-Zahrawi (Abulcasis) in the Al-Tasrif (1000), many of which were never used before by any previous surgeons. Hamidan, for example, listed at least twenty six innovative surgical instruments that Abulcasis introduced.
Bone saw by Abulcasis.
Use of catgut for internal stitching, by Abulcasis.