Assertion: endoscope's tube | /r/HasProperty | stent
Facets:
value: to help keep it
type: PURPOSE
Source sentences:
text: In addition, small cylindrical tubes (stents) can be placed within the bile duct and/or pancreatic duct to treat obstructions from either benign or malignant diseases.
text: Or an endoscope can be used to place a rigid tube called a stent into a part of the digestive tract to help keep it open.