The Watson peroral small intestinal biopsy capsule was a system used through from the 1960s to obtain small intestinal wall

biopsies A biopsy is a medical test commonly performed by a surgeon, an interventional radiologist, or an interventional cardiologist. The process involves the extraction of sample cells or tissues for examination to determine the presence or extent of ...

in patients with suspected

coeliac disease Coeliac disease (British English) or celiac disease (American English) is a long-term autoimmune disorder, primarily affecting the small intestine. Patients develop intolerance to gluten, which is present in foods such as wheat, rye, spelt ...

and other diseases affecting the proximal small bowel. A similar device known as the Crosby-Kugler capsule was also developed in the 1950s and utilized for similar purposes.

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