Blood air trap chamber
First Claim
1. A blood chamber which comprises a sealed, integral, flattened plastic tube which defines a pair of spaced reservoir chambers, and a first conduit for each of said chambers respectively communicating with a first end of each reservoir chamber through a first port, each of said first conduits extending laterally along substantially the length of each said reservoir chamber in spaced relation thereto, for connection with tubing adjacent each reservoir chamber end opposed to the first end of said reservoir chamber, said sealed, flattened plastic tube also defining a pair of second ports, each second port respectively communicating with one of the reservoir chambers.
2 Assignments
0 Petitions
Accused Products
Abstract
A blood chamber for hemodialysis sets which comprises a sealed, flattened plastic parison, typically from blow molding, which defines a reservoir chamber and at least a first conduit communicating with a first end of the reservoir chamber through a first port. The conduit extends laterally along substantially the length of the reservoir chamber in spaced relation thereto, for connection with hemodialysis set tubing adjacent the reservoir chamber and opposed to the first end. The blood chamber typically also defines a second port communicating with the reservoir chamber, typically at the same end thereof as the first port.
77 Citations
18 Claims
- 1. A blood chamber which comprises a sealed, integral, flattened plastic tube which defines a pair of spaced reservoir chambers, and a first conduit for each of said chambers respectively communicating with a first end of each reservoir chamber through a first port, each of said first conduits extending laterally along substantially the length of each said reservoir chamber in spaced relation thereto, for connection with tubing adjacent each reservoir chamber end opposed to the first end of said reservoir chamber, said sealed, flattened plastic tube also defining a pair of second ports, each second port respectively communicating with one of the reservoir chambers.
- 11. A blow molded blood chamber for hemodialysis sets which comprises a sealed, integral, flattened plastic tube which defines a pair of spaced reservoir chambers, and a first conduit for each of said chambers respectively communicating with the first end of each reservoir chamber through a first port, each of said first conduits extending laterally along substantially the length of each said reservoir chamber in spaced relationship thereto, for connection with tubing adjacent each reservoir chamber end opposed to the first end of said reservoir chamber, said sealed, flattened plastic tube also defining a pair of second ports, each second port respectively communicating with one of the reservoir chambers, said spaced reservoir chambers being free of any interconnecting flow conduits within said flattened plastic tube, one of said chambers having a port which is directly connected with roller pump tubing, said roller pump tubing comprising collapsible, flexible tubing which is normally straight in unstressed configuration, and which has a free end not connected to said flattened plastic tube.
- 17. A blood chamber which comprises a sealed, plastic tube which defines a reservoir chamber and a pair of conduits communicating with a first end of said reservoir chamber through first and second ports, said first and second ports being separated by a central partition, said partition defining a lateral angle to cause inflow from one of said ports to be directed laterally away from the other of said ports, whereby air bubbles entering through the one of said ports are less likely to be immediately caught and sucked out of the chamber through the other of said ports.
Specification