Connector device
The present invention relates to a connector device to connect a first and a second fluid container, directly or indirectly. The connector device exhibit a first and a second connection means, a pierceable barrier member, a piercing member, a fluid transfer channel and a pressure normalization channel. The pressure normalization channel is arranged to normalize an increasing pressure inside second fluid container. A valve arrangement permitting fluid to flow in a first and a second direction is arranged in the pressure normalization channel. The valve arrangement exhibit a cracking pressure in at least the first direction. The present invention provides for a connector device which reduces the risk of clogging the barrier filter.
1. A connector device for establishing fluid communication by connecting a first fluid container with a second fluid container, said connector device comprising a housing, said housing comprises first connection means having a pierceable barrier member, connect said first fluid container to said housing, and second connection means, to connect said second fluid container,
and a fluid transfer channel to enable fluid transfer between said first and second fluid container after assembly,
said housing further comprises at least one pressure normalization channel arranged to normalize the pressure in said second fluid container during said fluid transfer,
said at least one pressure normalization channel having an outlet opening, an inlet opening, a barrier filter and at least one valve arrangement, wherein
said at least one valve arrangement is arranged to permit fluid to flow in a first and a second direction, wherein said first direction is in a direction from said inlet opening towards said outlet opening and said second direction is from said outlet opening towards said inlet opening, and wherein said at least one valve arrangement has a cracking pressure in at least said first direction.
2. The connector device according to claim 1 , wherein said at least one valve arrangement comprises a first and a second check valve arranged in substantially opposite direction of each other.
3. The connector device according to claim 2 , wherein said first and second check valves are arranged substantially parallel with each other.
4. The connector device according to claim 2 , wherein said cracking pressure of said first check valve is at least 0.04 atm.
5. The connector device according to claim 2 , wherein said cracking pressure of said first check valve is between 0.04-0.5 atm.
6. The connector device according to claim 3 , wherein said cracking pressure of said first check valve is at least 0.04 atm.
7. The connector device according to claim 3 , wherein said cracking pressure of said first check valve is between 0.04-0.5 atm.
8. The connector device according to claim 1 , wherein said second check valve has a cracking pressure in said second direction.
9. The connector device according to claim 8 , wherein said cracking pressure of said second check valve is between 0.02-0.5 atm.
10. The connector device according to claim 1 , wherein said housing comprises a first and a second pressure normalization channel and wherein said first check valve is arranged in said first pressure normalization channel and wherein said second check valve is arranged in said second pressure normalization channel.
11. The connector device according to claim 10 , wherein said first and second pressure normalization channels have mutual inlet and outlet openings.
12. The connector device according to claim 1 , wherein said at least one valve comprises a membrane having at least one slit.
13. The connector device according to claim 1 , further comprising an expandable bladder arranged at said outlet opening of said at least one pressure normalization channel and in communication with said at least one pressure normalization channel.
14. The connector device according to claim 1 , wherein the volume of the pressure normalization channel between said first check valve and the inlet opening of the pressure normalization channel is <1 ml.
15. The connector device according to claim 14 , wherein the volume of the pressure normalization channel between said first check valve and the inlet opening of the pressure normalization channel is between 0.01 ml-0.9 ml.