Ultrasound surgery uses high frequency and high energy sound waves to target and destroy tissue. LigaSure fuses vessels up to 7mm in diameter in an efficient manner. Terminology
The expression surgical instrumentation is somewhat interchangeably used with surgical instruments, but its meaning in medical jargon is the activity of providing assistance to a surgeon with the proper handling of surgical instruments during an operation, by a specialized professional, usually a surgical technologist or sometimes a nurse or radiographer.An important relative distinction regarding surgical instruments is the amount of bodily disruption or tissue trauma that their use might cause the patient. Terms relating to this issue are atraumatic and minimally invasive. See also
Instruments used in general surgery
Medical instruments and implants

Gallery
References
External links
Edgar R. McGuire Historical Medical Instrument Collection from the University at Buffalo Libraries

Bibliography
Wells, MP, Bradley, M: Surgical Instruments A Pocket Guide. W.B. Saunders, 1998.
Blood shift, the shifting of blood to the thoracic cavity, the region of the chest between the diaphragm and the neck, to avoid the collapse of the lungs under higher pressure during deeper dives.The reflex action is automatic and allows both a conscious and an unconscious person to survive longer without oxygen underwater than in a comparable situation on dry land. The exact mechanism for this effect has been debated and may be a result of brain cooling similar to the protective effects seen in people who are treated with deep hypothermia.The actual cause of death in cold or very cold water is usually lethal bodily reactions to increased heat loss and to freezing water, rather than any loss of core body temperature. Of those who die after plunging into freezing seas, around 20% die within 2 minutes from cold shock (uncontrolled rapid breathing and gasping causing water inhalation, a massive increase in blood pressure and cardiac strain leading to cardiac arrest, and panic), another 50% die within 15 – 30 minutes from cold incapacitation (loss of use and control of limbs and hands for swimming or gripping, as the body protectively shuts down the peripheral muscles of the limbs to protect its core), and exhaustion and unconsciousness cause drowning, claiming the rest within a similar time. A notable example of this occurred during the sinking of the Titanic, in which most people who entered the −2 °C (28 °F) water died within 15–30 minutes. [S]omething that almost no one in the maritime industry understands.