| 摘要 |
Injection of barium into the lower digestive tract of a patient to be examined and subsequent reflux and evacuation of the barium by air compression is effected by remote control whereby greater safety is achieved in production of double contrast studies or fluoroscopic examination. The apparatus employs detachable anal insertion units which are the only portion of the apparatus in direct contact with a patient. A new anal insertion unit is used for each patient, whereby cleaning of the apparatus is made easier and hygiene is improved. |
