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Colonoscopy Instruments

A colonoscopy procedure provides an in-depth assessment of the rectum and large intestine and is used to examine the health of the gastrointestinal system. The procedure can uncover lesions, polyps and, possibly, cancerous tumors. Colonoscopies are outpatient procedures, but they are invasive. One main instrument, the colonoscope, is used to complete the procedure.

  1. Colonoscope

    • The colonoscope consists of a small video camera and light connected to a thin, flexible tube, which is inserted through the rectum. The doctor leads the scope past the rectum and into the large intestine slowly, to capture as much video footage as possible.

    Colonoscope Channel

    • The colonoscope also contains a hollow channel that allows air to be pushed through it. The air will inflate the colon area, so that the doctor can obtain a better image. This channel also provides an entrance for other instruments to be inserted into the colon. An instrument called a "snare" can be used to remove any polyps that are found. Other instruments are used to cauterize tissue to prevent bleeding.

    The Procedure

    • Before the procedure the bowels and colon must be clear. Your doctor will prescribe a medicine that will aid in clearing the bowels. After this step is complete, you should not eat or drink. The actual procedure is conducted at a medical center. A pain reliever may be administered intravenously. The colonoscopy takes at least 30 minutes to complete and may cause discomfort in the bowels and abdomen. After the procedure is finished the medical staff will observe you until they see fit to release you. If a polyp was removed your observation period may be longer.

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