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Surgical snares are medical instruments used to remove growths from tissue surfaces, usually when the growths are inside a body cavity. Typical growths addressed with surgical snares include polyps, tumors, and lymphoid tissue (tonsils).
Making Growth Removal Much Easier
Surgical snares have different designs that enable general and specialty surgeons to reach and remove tissue growths that are often in difficult to reach places. However, all snares are designed with the basic elements of a handle, cannula (thin tube), a wire loop at the tip of the cannula, and a mechanism for tightening the wire. The loop encircles the tissue at the bottom or stalk (peduncle) of the growth and is slowly tightened by a mechanism in the handle.
The simple but effective design allows surgeons to more easily remove tissues that are causing medical problems, like tonsils, or need to be biopsied to determine if they are cancerous.
Surgical Snares for Specific Procedures
The most common surgical snares are:
There are also surgical snares specifically designed for removing growths in the GI tract and polypectomy snares for removing polyps during a colonoscopy.
Patient Safety and Surgeon Efficiency
Surgical snares are used mostly in hospital operating rooms and in clinics that perform outpatient surgeries. They simplify the procedure for the surgeon which in turn enhances patient safety by minimizing risks of inadvertent injury.