Kyoto Daiichi Kagaku Co., Ltd.

Arkray, Inc.

Yoshihiko Higuchi

Masufumi Koike

Hisashi Okuda

Michio Naka

Kouji Hirayama

Yoshinori Takahashi

Akio Okubo

Atsuko Katayama

Yoshiyuki Tanaka

Takashi Tsujii

Minoru Ota

Takehiro Yamaguchi

Hisashi Sakamoto

Masafumi Koike

A test devicefor analyzing a specific component in a test solution with a reagent by allowing the solution introduced via a feed openingto react with the reagent maintained in a predetermined position in a capillary tubehaving the openingand an air outlet. The tube is provided with two hydrophilic regionsand a hydrophobic region. The regiontransfers the solution from the openingto the reagent. The regionis delimited to a predetermined area maintaining the reagent. The regionseparates the regionfrom the region. The reagent and the solution are applied in predetermined amounts to the region. A measuring device need not previously measure the solution. The device is useful as an analytical device for rapid and easy analysis, and can be produced in a less number of steps because the reagent can be fixed by merely applying it onto a predetermined position.

Test device for analysis of a liquid sample

A suction generating device for a sample analysis device is provided. The device comprises four parts, namely, a cover plate, a middle plate, a bottom plateand an operation plate. A protruding portionfor compressing the suction generating chamber is formed in an approximately center portion on the lower side of the operation plate, a protruding portionfor operation is formed in an approximately center portion on the upper side of the operation plate. A cavityfor inserting the sample analysis device therein is formed in an approximately center portion in the bottom plate; and a holefor light irradiation is punched in a determined portion in the cavity. A concave portionfor fitting the operation platetherein is formed in the middle plate, and a window sectionis formed in the center of the concave portionto let the lower protruding portionon the operation plateprotrude therethrough. A window sectionis formed in the cover plateto let the upper protruding portionon the operation plateprotrude therethrough.

Device for analyzing a sample

A test device for analyzing a specific component in a test solution with a reagent by allowing the solution introduced via a feed opening to react with the reagent maintained in a predetermined position in a capillary tube having the opening and an air outlet The tube is provided with two hydrophilic regions and a hydrophobic region The region transfers the solution from the opening to the reagent. The region is delimited to a predetermined area maintaining the reagent. The region separates the region from the region The reagent and the solution are applied in predetermined amounts to the region A measuring device need not previously measure the solution. The device is useful as an analytical device for rapid and easy analysis, and can be produced in a less number of steps because the reagent can be fixed by merely applying it onto a predetermined position.

Testing instrument for analyzing liquid sample

A suction generating device for a sample analysis device is provided. The device comprises four parts, namely, a cover plate,a middle plate,a bottom plate,and an operation plate,A protruding portion,for compressing the suction generating chamber is formed in an approximately center portion on the lower side of the operation plate,a protruding portion,for operation is formed in an approximately center portion on the upper side of the operation plate,A cavity,for inserting the sample analysis device therein is formed in an approximately center portion in the bottom plate,and a hole,for light irradiation is punched in a determined portion in the cavity,A concave portion,for fitting the operation plate,therein is formed in the middle plate,and a window section,is formed in the center of the concave portion,to let the lower protruding portion,on the operation plate,protrude therethrough. A window section,is formed in the cover plate,to let the upper protruding portion,on the operation plate,protrude therethrough.

Suction generating device and sample analysis apparatus using the same

An analysis element for analyzing a specific component in a liquid sample is disclosed, which comprises a reagent comprising insoluble particles and boric acid. Furthermore, a method for preparing a reagent liquid for use in the preparation of an analysis element for analyzing a specific component in a liquid sample is disclosed, which comprises adding insoluble particles and boric acid to the reagent liquid.

Analysis element and method for preparing the same

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,, 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,. 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.

A method for fixing a reagent layer directly onto a supporting base plate in the preparation of a dry analysis kit for determining a specific component in a liquid specimen wherein at least one of the reagent layer and the base plate is a thermoplastic resin, and which comprises the steps of:

Ultrasonic direct fixing of reagent layer and method for preparing peel

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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Kyoto, Japan

Yoshihiko Higuchi