Mechanisms for preventing reconnection of connectors intended for single use

A single-use disposable set for use in administering fluid to a patient, the single-use disposable set comprising:

• a housing configured to be inserted through a corresponding slot defined within an enclosure of a fluid injector wherein, upon installation of a multi-use disposable set within the fluid injector, a fluid connection port and a waste inlet port of the multi-use disposable set are accessible within the corresponding slot of the fluid injector;
• a fluid inlet port defined through the housing, the fluid inlet port having a proximal side thereof being configured for connection to the fluid connection port of the multi-use disposable set;
• a waste outlet port defined through the housing, the waste outlet port having a proximal side being configured for connection to the waste inlet port of the multi-use disposable set;
• a patient fluid line having a fluid port connector, an end port connector and a flexible tubing extending between the fluid port connector and the end port connector, the fluid port connector being connected to a distal side of the fluid inlet port and the end port connector being removably connectable to a distal side of the waste outlet port;
• such that (A) upon insertion of the housing into the corresponding slot of the fluid injector, the fluid inlet port and the waste outlet port connect, respectively, to the fluid connection port and the waste inlet port thereby enabling fluid communication between the multi-use disposable set and the single-use disposable set, and (B) upon removal of the housing from the corresponding slot, the fluid inlet port and the waste outlet port of the single-use disposable set disconnect, respectively, from the fluid connection port and the waste inlet port of the multi-use disposable set;
• and
• a reconnection prevention mechanism that, upon removal of the housing from the corresponding slot, is configured to prevent reconnection of at least one of (A) the fluid inlet port of the single-use disposable set to the fluid connection port of the multi-use disposable set and (2) the waste outlet port of the single-use disposable set to the waste inlet port of the multi-use disposable set.

A single-use connector configured to be removably connected to a reusable connector, the single-use connector comprising:

• a hollow, tubular housing having an open proximal side opposite a distal side along a longitudinal length of the housing;
• and
• at least one guard member connected to the tubular housing configured to transition between an open position in which the single-use connector can be connected to the reusable connector and a closed position in which the at least one guard member prevents the single-use connector from being connected to the reusable connector,
• wherein disconnecting the single-use connector from the reusable connector causes the at least one guard member to transition from the open position to the closed position.