Langston Dual Lumen Catheter 6F Model 5540. For delivery of contrast medium in angiographic studies
The inner lumen of the Langston catheter may separate from the hub during pressure injection.
Worldwide distribution. US nationwide, Austria, Australia, Belgium, Canada, Czech Republic, France, Germany, Greece, Hong Kong, Ireland, Israel, Italy, Mexico, Netherlands, Slovakia, South Africa, Spain, Sweden, Switzerland, and United Kingdom.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-1747-2020