Patent ID: 9662595
Date: 2017-05-30
CPC Classifications: B01D,G01N,Y10T

Claim:
1. A liquid-chromatography apparatus, comprising: two inner conduits disposed end-to-end, in contact, to define a low dead-volume interface; an intermediate tube, within which the two inner conduits are disposed, wherein the intermediate tube is attached to at least one of the two inner conduits at a distal seal area spaced from the interface; an outer tube, within which the intermediate tube is disposed, wherein the outer tube is deformed at a location more proximal to the interface than the distal seal area such that is presses the intermediate tube against one of the inner conduits to form a substantially liquid-tight seal area between the inner conduit and the intermediate tube; wherein the distal seal area is larger than the substantially liquid-tight seal area and wherein the distal seal area substantially prevents the inner conduit from sliding within the intermediate tube during pressure cycling.