Fluid transfer device
View Patent ↗A fluid transfer device for transferring fluid between a supply reservoir and a fill reservoir includes a metering reservoir and a manifold that forms at least part of a first channel that is fluidly connected with the metering reservoir. The first channel comprises a first cannula extending from the manifold. The manifold forms at least part of a second channel fluidly connected with the metering reservoir. The second channel comprises a second cannula extending from the manifold. A third channel extends through the manifold and comprises a third cannula having a first end proximate a distal end of the first cannula and a second end proximate a distal end of the second cannula. A first check valve is disposed within the first channel and a second check valve is disposed within the second channel.
1. A fluid transfer device for transferring fluid between a supply reservoir and a fill reservoir comprising:
a metering reservoir;
a first flow path having a first one-way channel fluidly connected with the metering reservoir and configured to fluidly couple the supply reservoir and the metering reservoir and a second one-way channel fluidly connected with the metering reservoir and configured to fluidly couple the fill reservoir and the metering reservoir;
a second flow path configured to fluidly couple the supply reservoir and the fill reservoir;
a member supporting the first and second one-way channels;
a tray support connected to the member and configured to align the fill reservoir with the second one-way channel; and
a tray slideably connected to the tray support and configured to accommodate the fill reservoir.
2. The fluid transfer device of claim 1 , wherein the first one-way channel includes a first cannula and the second one-way channel includes a second cannula.
3. The fluid transfer device of claim 2 , wherein the first cannula includes a beveled tip.
4. The fluid transfer device of claim 3 , wherein the second cannula includes a beveled tip.
5. The fluid transfer device of claim 2 , wherein the first cannula extends in a first direction from the member and the second cannula extends in a second direction from the member, the first direction being generally opposite the second direction.
6. The fluid transfer device of claim 5 , wherein the metering reservoir extends from the member generally in the first direction.
7. The fluid transfer device of claim 2 further comprising: a manifold that supports the first and second cannulas, the manifold forming at least part of the first one-way channel and at least part of the second one-way channel.
8. The fluid transfer device of claim 2 , wherein the first cannula has a larger cross sectional area than a cross sectional area of the second cannula.
9. The fluid transfer device of claim 1 , further comprising:
a supply support configured to couple the fluid transfer device with the supply reservoir.
10. The fluid transfer device of claim 9 , wherein the supply support includes at least one catch proximate the first channel and configured to releasably retain the supply reservoir.
11. The fluid transfer device of claim 10 , wherein the at least one catch includes at least two catches spaced different distances from the first channel.
12. The fluid transfer device of claim 9 , wherein the supply support includes at least one catch proximate the first channel and configured to non-releasably retain the supply reservoir.
13. The fluid transfer device of claim 9 , wherein the supply support is configured to position the first one-way channel within the supply reservoir and the first one-way channel is configured to transfer substantially all of the fluid from the supply reservoir.
14. The fluid transfer device of claim 1 , wherein at least one of the tray support and the tray further comprises a safety lock configured to prevent the tray from moving relative to the member when the tray is empty and exposing the second one-way channel.
15. The fluid transfer device of claim 1 , further comprising: a safety reservoir configured to removeably couple with the tray configured to block access to the second one-way channel in an initial position.
16. The fluid transfer device of claim 1 , wherein the first one-way channel includes a first cannula, the second one-way channel includes a second cannula and the second flow path includes a third cannula.
17. The fluid transfer device of claim 16 , wherein the third cannula is disposed within the first cannula and a first end of the third cannula is curved toward an inner side wall of the first cannula proximate a distal end of the first cannula.
18. The fluid transfer device of claim 16 , wherein a second end of the third cannula comprises a beveled tip.
19. A fluid transfer device for transferring fluid between a supply reservoir and a fill reservoir comprising:
a metering reservoir;
a first flow path having a first one-way channel fluidly connected with the metering reservoir and configured to fluidly couple the supply reservoir and the metering reservoir and a second one-way channel fluidly connected with the metering reservoir and configured to fluidly couple the fill reservoir and the metering reservoir; and
a second flow path configured to fluidly couple the supply reservoir and the fill reservoir,
wherein the first one-way channel includes a first cannula, the second one-way channel includes a second cannula and the second flow path includes a third cannula, and
wherein the third cannula is disposed within the first cannula and a first end of the third cannula is curved toward an inner side wall of the first cannula proximate a distal end of the first cannula.