Device for analyzing a sample
First Claim
1. A device for collecting a sample for analysis, comprising:
- a main body;
a suction pressure generator;
a drawing channel formed in the main body in communication with the suction pressure generator, an opening in the main body being formed at the end of said drawing channel distal with respect to said suction pressure generator;
an analytical section formed in said drawing channel between the suction generator and the opening; and
a bypass channel formed in the main body and branching from the drawing channel at a position between the analytical section and the opening and in communication with the suction pressure generator,wherein in use a sample is drawn into the main body through the opening by suction pressure developed by said suction pressure generator, and then the sample is transferred by the suction pressure through the drawing channel into the analytical section, and wherein the relationship between a liquid flow resistance (X) in a first portion of the drawing channel between said analytical section and said suction pressure generator, a liquid flow resistance (Y) in the bypass channel and a liquid flow resistance (Z) in a second portion of the drawing channel between the position at which said bypass channel branches and said analytical section satisfies the inequality (X)>
(Y)>
(Z).
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Accused Products
Abstract
This invention provides a device for analyzing a sample which is capable of performing rapid and precise analysis of a small amount of sample, and whose gradient in a measuring apparatus is not limited. This device comprises approximately a rectangular plate shaped body comprising a base member made of resin and a transparent covering. A first depressed cylindrical concave portion is formed in the upper surface of the base member, and a groove is formed in communication with the first depressed cylindrical concave portion, the groove extending to the end of the protrusion portion 5c, and a second depressed cylindrical concave portion which is smaller than the first depressed cylindrical concave portion is formed in a certain position in the groove, the end of the groove opening to the outside at the end of the protrusion portion 5c. Then, the transparent covering is placed over the upper surface of the base member and then integrated together. As a result, the first depressed cylindrical concave portion, the groove, the second depressed cylindrical concave portion, and the opening at the end of the groove are formed into a suction pressure generating chamber, a drawing channel, an analytical section, and an opening for drawing a sample, respectively.
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Citations
22 Claims
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1. A device for collecting a sample for analysis, comprising:
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a main body; a suction pressure generator; a drawing channel formed in the main body in communication with the suction pressure generator, an opening in the main body being formed at the end of said drawing channel distal with respect to said suction pressure generator; an analytical section formed in said drawing channel between the suction generator and the opening; and a bypass channel formed in the main body and branching from the drawing channel at a position between the analytical section and the opening and in communication with the suction pressure generator, wherein in use a sample is drawn into the main body through the opening by suction pressure developed by said suction pressure generator, and then the sample is transferred by the suction pressure through the drawing channel into the analytical section, and wherein the relationship between a liquid flow resistance (X) in a first portion of the drawing channel between said analytical section and said suction pressure generator, a liquid flow resistance (Y) in the bypass channel and a liquid flow resistance (Z) in a second portion of the drawing channel between the position at which said bypass channel branches and said analytical section satisfies the inequality (X)>
(Y)>
(Z). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification