31.   Nickel is used to harden metals, is crucial to the production of stainless steel and is found in products ranging from surgical instruments to aircraft propellers.

32.   One of his most recent inventions, the Black Falcon, is a remotely operated surgical instrument that has already been licensed by a medical technology company.

33.   Or consider refractive surgery, in which the cornea is reshaped with a surgical instrument, laser or both.

34.   Teleflex, of Plymouth Meeting, Pa., makes aerospace and medical equipment, including surgical instruments.

35.   Surgical instruments are designed for the larger male heart and sometimes are too large to be used on women.

36.   The appendix was removed in a minimally invasive procedure in which tubes with a tiny camera and surgical instruments are threaded into the abdomen.

37.   The finding, however, could lead to more effective ways of disinfecting surgical instruments contaminated by prions, the rogue proteins thought to cause the disease.

38.   The human doctor has surgical instruments in hand, but the instruments have no tips.

39.   The list includes companies that specialize in devices for use in cardiovascular procedures and orthopedic implants and surgical instruments.

40.   The procedure is not without risk, says Fried, a pioneer in the method, because probing the sinuses brings surgical instruments close to the eyes and brain.