Liquid transfer device
AssigneeDyax Corp.
InventorsJeffrey A. Horsman, Ivan Hargro, Peter Rahn
Life of this patent
Estimating the term…
Abstract
A device for transferring small drops of liquid from one or more liquid holders to one or more liquid destinations is disclosed. The device includes a support member and a plurality of fluid transfer members extending from the support member. Each fluid transfer member includes a flexible liquid transfer end.
Claims6
A device for transferring small drops of liquid from one or more liquid holders to one or more liquid destinations, the device comprising:
- a support member;
- and
- a plurality of fluid transfer members extending from the support member, each fluid transfer member including a flexible liquid transfer end,
- wherein each fluid transfer end comprises a capillary tube at its distal tip, and an axially extending spring, the spring being coupled to the capillary tube such that the spring provides axial flexibility to the tube,
- wherein a distal end of each spring is coupled to a proximal end of each tube,
- wherein each fluid transfer member further comprises a holder for coupling a respective fluid transfer end to the device, and each fluid transfer end further comprises:
- a rigid sleeve having a proximal region that surrounds the spring and a distal region that defines the capillary tube;
- and
- a pin having a shaft and a head, the shaft extending axially into the spring, and the head being coupled to the holder, wherein each holder defines a threaded bore, and each holder further includes a pair of screws threadingly engaged with the bore, the head of the pin being disposed within the bore between the two screws.
A device for transferring small drops of liquid from one or more liquid holders to one or more liquid destinations, the device comprising:
- a support member;
- and
- a plurality of fluid transfer members extending from the support member, each fluid transfer member including a flexible liquid transfer end,
- wherein each fluid transfer end comprises a capillary tube at its distal tip, and an axially extending spring, the spring being coupled to the capillary tube such that the spring provides axial flexibility to the tube,
- wherein a distal end of each spring is coupled to a proximal end of each tube,
- wherein each fluid transfer member further comprises a holder for coupling a respective fluid transfer end to the device, and each fluid transfer end further comprises:
- a rigid sleeve having a proximal region that surrounds the spring and a distal region that defines the capillary tube;
- and
- a pin having a shaft and a head, the shaft extending axially into the spring, and the head being coupled to the holder, wherein the capillary tube defines a transverse hole to prevent air from becoming trapped within the tube.
A fluid transfer tool for use with a fluid transfer device for transferring small drops of liquid from one or more liquid holders to one or more liquid destinations,
- the device comprising:
- a support member;
- and
- a plurality of fluid transfer members extending from the supporting member, each fluid transfer member including a flexible liquid transfer end,
- the tool comprising:
- an axially extending spring having a distal end and a proximal end, and defining an interior;
- a capillary tube coupled to the distal end of the spring;
- a pin having a shaft and a head, the shaft being disposed within the interior of spring, and the head remaining proximal to the proximal end of the spring;
- and
- an attachment member for coupling the tool to the fluid transfer device,
- the tool further comprising a rigid sleeve, the sleeve having a proximal region that surrounds the spring, and a distal region that defines the capillary tube.
Dependencies are inferred from the claim text.