<unk>  The<unk> , also called the<unk><unk> , is a device used for obtaining biopsies of small bowel mucosa, necessary for the diagnosis of various small bowel diseases. This<unk>  was originally invented by Dr. William H<unk>  to assist in diagnosing Coeliac disease. The<unk> , attached to a long tube, is swallowed. The other end of the tube remains outside the patient's mouth. When the<unk>  has reached the desired section of bowel, suction is applied to the tube. This suction triggers a mechanism in the<unk>  which causes a spring-loaded knife to sweep across an aperture in the<unk> , cutting away any mucosa protruding into the aperture. The<unk>  is then pulled up by the tube, and the biopsied tissue is retrieved from within the<unk>  chamber. Since about 1980, it has been possible to perform adequate biopsies on adults during an upper endoscopy, relegating the<unk><unk>  to use mainly in children.
Crosby–Kugler capsule
Ferruginous body
Cusco's speculum
Hematoxylin body
Sebaceous filament
Bowman's capsule
Schaumann body
Schiller–Duval body