Component measuring device
First Claim
1. A component measuring device for measuring at least one of a quantity or a property of a given component in a specimen by colorimetrically measuring a test member, comprising:
- a tip mount for removably mounting a tip having the test member;
a photometric unit having a light-emitting element for applying light to said test member of said tip for measurement, a light-detecting element for detecting light reflected by said test member, and a holder in which is accommodated said light-emitting element and said light-detecting element;
a light-shielding test tip for being removably mounted on said tip mount,wherein said holder has a passage for passing said light and said reflected light therethrough, and a light-transmissive member is disposed in a portion of said holder which is adapted to face said test member; and
stain detecting means for detecting a stain on said light-transmissive member based on an amount of light detected by said light-detecting element when light is emitted from said light-emitting element while said test tip is mounted on said tip mount,wherein said stain detecting means is arranged to determine that there is a stain on said light-transmissive member if an amount of light detected by said light-detecting element is greater than a threshold.
1 Assignment
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Accused Products
Abstract
A component measuring device for measuring the quantity and/or the property of a given component in a specimen by calorimetrically measuring a test strip includes a tip mount on which is to be mounted a tip having the test strip, and a photometric unit. The photometric unit comprises a light-emitting element that applies light to the test strip while the tip is mounted on the tip mount, a light-detecting element that detects light reflected from the test strip, and a holder in which is held the light-emitting element and the light-detecting element. The holder possesses a passage through which passes the light and the reflected light. A light-transmissive member closes the passage with a sealing member interposed therebetween in a portion of the holder which faces the test strip. The component measuring device can also be provided with a stain detecting device which is adapted to detect a stain on the light-transmissive member.
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Citations
19 Claims
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1. A component measuring device for measuring at least one of a quantity or a property of a given component in a specimen by colorimetrically measuring a test member, comprising:
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a tip mount for removably mounting a tip having the test member; a photometric unit having a light-emitting element for applying light to said test member of said tip for measurement, a light-detecting element for detecting light reflected by said test member, and a holder in which is accommodated said light-emitting element and said light-detecting element; a light-shielding test tip for being removably mounted on said tip mount, wherein said holder has a passage for passing said light and said reflected light therethrough, and a light-transmissive member is disposed in a portion of said holder which is adapted to face said test member; and stain detecting means for detecting a stain on said light-transmissive member based on an amount of light detected by said light-detecting element when light is emitted from said light-emitting element while said test tip is mounted on said tip mount, wherein said stain detecting means is arranged to determine that there is a stain on said light-transmissive member if an amount of light detected by said light-detecting element is greater than a threshold. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13)
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5. A component measuring device for measuring at least one of a quantity or a property of a given component in a specimen by calorimetrically measuring a test member, comprising:
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a photometric unit having a light-emitting element for applying light to said test member for measurement, and a light-detecting element for detecting light reflected from said test member, wherein said photometric unit has a passage for passing said light and said reflected light therethrough, and a light-transmissive member is disposed in a portion of said photometric unit which is adapted to face said test member; and stain detecting means for detecting a stain on said light-transmissive member based on an amount of light detected by said light-detecting element when light is emitted from said light-emitting element, wherein said stain detecting means is arranged to determine that there is a stain on said light-transmissive member if the amount of light detected by said light-detecting element is greater than a threshold. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification