Liquid dispenser
DC CAFCFirst Claim
1. A device for dispensing an amount of fluid from a stoppered container to a target surface, comprising:
- a dispenser body having a passageway formed therein, one end of said dispenser body including a surface for engaging said stoppered container and another end of said dispenser body including stabilizing supports for engaging said target surface, and said passageway including means for passing through said stoppered container to interior portions of said stoppered container, for accessing the fluid in said stoppered container and for dispensing said fluid from said passageway and to said target surface responsive to forces applied relative to said dispenser body.
2 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A dispenser for blood and other biological specimens is disclosed which provides a means of obtaining a small predetermined quantity of specimen from a closed container without the need to remove the stopper from the container. The cannula of the device is caused to pierce the container'"'"'s rubber stopper forming an assembly. When the said assembly is forced against a target surface, such as microscope slide, the force compresses the stopper and thereby reduces the volume inside the container sufficiently to eject a drop of fluid which is dispensed onto a target surface. Stabilizing supports are provided so that fluid emerges from a dispensing tip located a predetermined distance above the target surface which determines the quantity of fluid dispensed. The supports also transmit reactive force from the target surface to compress the rubber stopper of the closed specimen tube.
47 Citations
57 Claims
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1. A device for dispensing an amount of fluid from a stoppered container to a target surface, comprising:
a dispenser body having a passageway formed therein, one end of said dispenser body including a surface for engaging said stoppered container and another end of said dispenser body including stabilizing supports for engaging said target surface, and said passageway including means for passing through said stoppered container to interior portions of said stoppered container, for accessing the fluid in said stoppered container and for dispensing said fluid from said passageway and to said target surface responsive to forces applied relative to said dispenser body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- 24. A device for dispensing an amount of fluid from a stoppered container, in combination with at stoppered container and a target surface in operative association with said dispensing device, wherein said dispensing device includes a dispenser body having a passageway formed therein, one end of said dispenser body including a surface in contact with said stoppered container and another end of said dispenser body including stabilizing supports in contact with said target surface, and wherein said passageway includes means for passing through said stoppered container to interior portions of said stoppered container, for accessing the fluid in said stoppered container and for dispensing said fluid from said passageway, to said target surface, responsive to forces applied to said stoppered container and developed between said dispensing device and said target surface.
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41. A method for dispensing an amount of fluid from a stoppered container to a target surface utilizing a dispensing device including a body having a passageway for communicating fluid through said dispensing device, a surface for engaging said stoppered container and stabilizing supports for engaging said target surface, an entry tip in communication with said passageway and extending from the surface for engaging said stoppered container, and a dispensing tip formed in said passageway, said method comprising the steps of:
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introducing said entry tip into said stoppered container and bringing said engaging surface into contact with said stoppered container; placing said stoppered container and said dispensing device on said target surface so that said dispensing device is in contact with and is positioned over said target surface; applying a force against said stoppered container, relative to said target surface, compressing said stoppered container relative to said dispensing device; and releasing said force applied against said stoppered container, dispensing said amount of fluid from said dispensing tip and to said target surface. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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Specification