Fluid line safety device
View Patent ↗A restraining device for a tubing connector assembly can include a resilient member having a generally U-shape with forked ends that curve toward each other. Each forked end can have a recess between tines thereof. Each recess can have a blind end. The resilient member can have a bend provided with an engagement bump. The engagement bump and forked ends can be aligned such that the engagement bump coincides with a line joining the blind ends. When a cylindrical connector assembly tube is placed in the recesses, the engagement bump is urged against a side of the connector assembly to thereby prevent inadvertent disconnection.
1. A restraining device comprising:
an undulating member having a curved W-shape in profile,
the undulating member having a first end, a second end, and an arched portion between the first and second ends,
at least one of the first and second ends being a forked end with a pair of tines separated from each other by a recess, the recess being sized and shaped to accommodate a tube of a connector assembly between the tines,
the first end and the arched portion being connected together by a U-shaped first loop,
the second end and the arched portion being connected together by a U-shaped second loop,
the first and second loops being arranged such that the first and second ends are displaced away from each other by applying a force to the first and second loops so as to actuate the restraining device.
2. The restraining device of claim 1 , wherein the first and second loops are arranged such that the first and second ends are displaced away from each other by squeezing the first and second loops together.
3. The restraining device of claim 1 , wherein the first and second loops are arranged such that the force can be applied to the first and second loops using a single hand.
4. The restraining device of claim 1 , wherein the first and second loops are arranged such that the force can be applied to the first and second loops using two fingers.
5. The restraining device of claim 1 , wherein both the first and second ends are forked ends.
6. The restraining device of claim 1 , wherein the first and second ends are curved toward the arched portion.
7. The restraining device of claim 1 , wherein the arched portion includes a protruding portion arranged to interact with a connector of the connector assembly when the restraining device is applied thereto.
8. The restraining device of claim 7 , wherein the protruding portion comprises a knife edge bump that contacts a knurl of the connector so as to prevent rotation thereof.
9. The restraining device of claim 1 , wherein the recess has a progressively narrowing shape.
10. The restraining device of claim 1 , wherein at least one of the first and second ends has a surface opposing the other of the first and second ends, said surface having a recess constructed to fit a respective portion of a connector end when the restraining device is applied to the connector assembly.
11. The restraining device of claim 1 , wherein the recess of the forked end is constructed such that the tube of the connector assembly is gripped by the tines when the restraining device is applied to the connector assembly.
12. The restraining device of claim 1 , wherein one of the first and second ends has tines connected together to form a closed recess that is sized and shaped to accommodate a tube of the connector assembly.
13. A restraining device comprising:
first and second ends, each having a recess that is constructed to accommodate a tube of a connector assembly; and
an undulating bridge connecting the first and second ends and including an inwardly arching portion between a pair of actuation portions, the actuation portions being arranged such that the first and second ends are displaced away from each other by squeezing together the actuation portions,
wherein the restraining device has a curved W-shape.
14. The restraining device of claim 13 , wherein the actuation portions are arranged such that the squeezing together can be performed using one hand.
15. The restraining device of claim 13 , wherein the actuation portions are arranged such that the squeezing together can be performed using two fingers.
16. The restraining device of claim 13 , wherein each actuation portion comprises a curved U-shaped loop.
17. The restraining device of claim 13 , wherein at least one of the first and second ends is a forked end with a pair of tines that define the recess.
18. The restraining device of claim 13 , wherein the inwardly arching portion includes a protruding portion arranged to interact with a connector of the connector assembly when the restraining device is applied thereto.
19. The restraining device of claim 18 , wherein the protruding portion comprises a knife edge bump that contacts a knurl of the connector so as to prevent rotation thereof.
20. The restraining device of claim 13 , wherein the first and second ends curve toward each other.
21. A restraining device comprising:
a W-shaped member having first and second ends and a resilient bridge connecting the first and second ends,
each end being constructed to accommodate a tube of a connector assembly between respective portions thereof,
the resilient bridge having an inwardly arching portion and curved portions on opposite sides of the inwardly arching portion,
wherein the resilient bridge is constructed such that inward force applied to the curved portions causes the first and second ends to separate from each other.
22. The restraining device of claim 21 , wherein the resilient bridge is constructed such that the inward force can be applied using two fingers of one hand.
23. The restraining device of claim 21 , wherein each curved portion comprises a curved U-shaped loop.
24. The restraining device of claim 21 , wherein at least one of the first and second ends is a closed end with a hole for said tube of the connector assembly.
25. The restraining device of claim 21 , wherein the inwardly arching portion includes a bump that contacts a knurl of a connector of the connector assembly so as to prevent rotation of the connector when the restraining device is applied thereto.