Sampling and dispensing device
First Claim
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1. A device comprising:
- a container comprising an open end and a closed end;
a first penetrable member disposed within said container and cooperating with said container to form a first sealed chamber, said first penetrable member is movable within said container and operable as a piston within said container;
a sampler defining a passage for sampling a sample which is open at first and second ends, at least a portion of said passage extending from said first end comprising a capillary passage operable to draw said sample into said passage by capillary action, said sampler being movable relative to said container, said sampler comprising a penetrating means configured to penetrate said first penetrable member such that said passage is in communication with said first sealed chamber once said penetrable member has been penetrated.
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Abstract
The present invention relates to a device and method for easy collection, dilution, mixing and dispensing of a liquid specimen in a self-contained system. The present invention can be used in combination with numerous testing means for performing chemical, biochemical or biomedical qualitative or quantitative assays in the field of both clinical and hygiene testing.
51 Citations
55 Claims
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1. A device comprising:
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a container comprising an open end and a closed end; a first penetrable member disposed within said container and cooperating with said container to form a first sealed chamber, said first penetrable member is movable within said container and operable as a piston within said container; a sampler defining a passage for sampling a sample which is open at first and second ends, at least a portion of said passage extending from said first end comprising a capillary passage operable to draw said sample into said passage by capillary action, said sampler being movable relative to said container, said sampler comprising a penetrating means configured to penetrate said first penetrable member such that said passage is in communication with said first sealed chamber once said penetrable member has been penetrated. - 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, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of drawing and dispensing a sample using a device for drawing and dispensing said sample, the device comprising a container comprising a chamber bounded on at least one side by a penetrable member, said chamber comprising a fluid and said device comprising a sampler comprising a capillary passage extending from a first end of the sampler and a penetrating means at a second end of the sampler and, said method comprising:
- drawing a sample of fluid by capillary action using said capillary passage; and
penetrating said penetrable member to engage said penetrable member and operate said penetrable member as a piston, wherein said piston is operated to expel said sample of fluid through said capillary passage. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
- drawing a sample of fluid by capillary action using said capillary passage; and
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48. A kit of parts comprising:
- a container comprising a sealed chamber bounded on at least one side by a penetrable member operable as a piston within said chamber; and
a sampler defining a passage which is open at both ends, at least a portion of a passage extending from a first end comprising a capillary passage operable to draw a sample of fluid into said passage by capillary action, the sampler comprising a penetrating means configured to penetrate said penetrable member such that said passage is in communication with said sealed chamber once said penetrable member has been penetrated. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55)
- a container comprising a sealed chamber bounded on at least one side by a penetrable member operable as a piston within said chamber; and
Specification