Abstract
In minimally invasive surgeries, it can be difficult to reach desired anatomic areas with rigid instruments, especially when obstacles are present in the surgical corridor (e.g., during transnasal pituitary surgery). We developed a new kind of suction device constructed of the shape-memory alloy Nitinol (nickel titanium), which is adaptable to a patient's specific anatomy. Use of this device minimizes surgical risks by allowing physicians to use an endonasal transsphenoid approach. The suction device, which is equipped with a cannula made of the shape-memory alloy, was planned and manufactured with three different handpiece designs. Experienced pituitary surgeons tested the prototypes in human cadaver skulls and rated the devices on specific questionnaires. The results of their evaluation indicate that this device is a suitable tool for improving the surgical procedure. Its potential benefits include a more effective surgery and reductions in the risk of injury, the duration of surgery, and costs.
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