Microfluidic interconnects

A microfluidic interconnect comprising:

• a member having an opening therein,
• a tube located in said opening and having a reduced external diameter end section,
• said tube additionally including at least one protruding section in said reduced diameter end section,
• a molded ring defining a seal located in said opening of said member, and having an internal enlarged section, when said tube is installed in said molded ring said protruding section of said tube is positioned in said enlarged section of said molded ring,
• said molded ring being constructed to form a leak-tight seal adjacent an associated member and to provide mechanical retention of said tube, and
• said tube additionally including an extended tip of a diameter less than said reduced external diameter end section.

A microfluidic interconnect comprising:

• a member having an opening therein,
• a tube located in said opening and having a reduced external diameter end section,
• said tube additionally including at least one protruding section in said reduced diameter end section,
• a molded ring defining a seal located in said opening of said member, and having an internal enlarged section, when said tube is installed in said molded ring said protruding section of said tube is positioned in said enlarged section of said molded ring,
• said molded ring being constructed to form a leak-tight seal adjacent an associated member and to provide mechanical retention of said tube,
• said molded ring being mounted at least partially within a cartridge and said cartridge being adopted to be mounted in an associated member into which said tube is inserted,
• said cartridge comprising a body member having an opening therethrough and a plurality of different diameter sections located along said opening, and wherein said tube includes a plurality of different diameter sections, and wherein said tube, when inserted into said cartridge, is positioned such that certain of said different diameter sections of each of said cartridge and said tube are in contact.

A microfluidic interconnect comprising:

• a member having an opening therein,
• a tube located in said opening and having a reduced external diameter end section,
• said tube additionally including at least one protruding section in said reduced diameter end section, and
• a molded ring defining a seal located in said opening of said member, and having an internal enlarged section, when said tube is installed in said molded ring said protruding section of said tube is positioned in said enlarged section of said molded ring,
• said molded ring being constructed to form a leak-tight seal adjacent an associated member and to provide mechanical retention of said tube,
• said molded ring being retained in a ferrule cartridge, and said tube includes a tip section having said protruding section, said protruding section of said tip of said tube being located in an indentation in said molded ring when said tube is inserted into said molded ring.