| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 422420000 | Having reagent in absorbent or bibulous substrate | 18 |
| 20110243811 | SUBSTRATE OF ANALYTICAL STRIP - This invention discloses a substrate of an analytical strip. The substrate has a channel provided concavely on an upper surface of the substrate. The channel comprises a first area for receiving a fluid sample, a second area for delivering the fluid sample, and a third area where the fluid sample reacts. These areas are connected sequentially. Nitrocellulose layers are formed at bottoms of both the second area and the third area. The conformation of the nitrocellulose layers is a hollow matrix. In addition, the nitrocellulose layer of the second area has an average thickness that is not greater than that of the nitrocellulose layer of the third area. | 10-06-2011 |
| 20120201720 | Multiple Assay Device - Disclosed is an assay device for the determination of analyte in a liquid sample over an extended concentration range comprising a first assay and a second assay, wherein the first assay for an analyte comprises a first flow-path having a sole detection zone capable of immobilising a labelled binding reagent and the second assay for said analyte comprises a second flow-path having a sole detection zone capable of immobilising a labelled binding reagent, wherein the presence of labelled binding reagent at the detection zones provides an indication of the presence and/or extent of analyte in said liquid sample. | 08-09-2012 |
| 20140170037 | DYE ENTRAPPED SOL-GEL FILM BASED TEST STRIP SENSOR FOR NITRITE AND A PROCESS OF PREPARING SAID STRIP SENSOR - The present invention relates to test strips that are photo and thermally stable, optically transparent and offer virtually specific absorptiometric sensing of nitrite in natural waters. The process of which is as follows: 1) The entrapment of xanthene dye specifically rhodamine 6G in sol-gel glass. This entrapment is done by delicate balance of coulombic interactions, hydrogen bonding and molecular imprinting effect. 2) In particular, rhodamine 6G entrapped sol-gel layers are formed by first preparing a sol by sonicating a mixture of tetraethoxsilane, water and ethanol for 30 minutes and hydrolysed to form gel by drop wise addition of hydrochloric acid. 3) This gel is further sonicated for 30 minutes after addition of dye and then aged for 15-20 h to obtain dye entrapped sol-gel glass and 4) This is then manually cast as sol-gel films on glass substrates to obtain test strips. | 06-19-2014 |
| 20140322097 | DEVICE FOR RAPID DETERMINATION OF DISEASE-ASSOCIATED THIOL COMPOUNDS - Disclosed is a single-use disposable article for determining the concentration of thiol compounds in a sample of fluid, and a description of how to make and use the article. | 10-30-2014 |
| 20140356252 | Calligraphy Paper-Based Biomedical Testing Sheet and Its Manufacturing Method - A biomedical testing sheet comprises: a substrate with calligraphy paper material, wherein the substrate comprises a wax pattern layer, which is a part of a surface of the substrate coated by a waxy material, and penetrated and diffused by the waxy material, and the wax pattern layer comprises one or more carrying units for carrying one or more droplets of liquids to be measured. The lotus effect substantially prevents diffusion of the liquids and reagents on the carrying units, and reduces the required amount of liquids to be measured and the amount of agent. | 12-04-2014 |
| 20160011188 | LATERAL FLOW ASSAY WITH TEST STRIP RETAINER | 01-14-2016 |
| 20160018338 | GAS SENSOR, REFRIGERATOR HAVING THE SAME, AND METHOD FOR MANUFACTURING THE GAS SENSOR - A gas sensor, a refrigerator having the gas sensor, and a method for controlling the gas sensor recognizes the ripening degree of a target food on the basis of a variation in color using a pH indicator having a color that is changed with pH variation generated when the pH indicator reacts with target gas, a refrigerator having the gas sensor. The gas sensor for detecting target gas includes: a base provided for gas permeation; and a detection unit provided at the base, and is discolored in response to pH variation generated when reacting with target gas having permeated the base. | 01-21-2016 |
| 20160038935 | MULTISTEP REACTION LATERAL FLOW CAPILLARY DEVICE - Disclosed is a lateral flow capillary device and uses thereof comprising a unipath bibulous capillary flow matrix and at least two reservoirs each in fluid communication with the capillary flow matrix wherein a reservoir contacts the capillary flow matrix through a passage having a rim pressing the matrix. The pressure that the rim applies on the matrix prevents leakage of liquids out of the capillary flow matrix at the reservoir/matrix interface, allowing accurate sequential draining of liquid from the reservoirs. During use of the disclosed lateral flow capillary device a static interface is formed between the first liquid and the second liquid in an interface creation zone inside the capillary flow matrix wherein the first amount and second amount are such that first liquid substantially remains in the first reservoir and the second liquid substantially remains in the second reservoir subsequent to the formation of the static interface and wherein the interface begins to move only subsequent to exhaustion of a liquid from a reservoir. | 02-11-2016 |
| 20160123974 | Immunochromatographic Diagnosis Kit - Provided is an immunochromatographic diagnostic kit which renders prompt diagnosis possible, has high analysis sensitivity, and gives test results with excellent reproducibility. The immunochromatographic diagnostic kit includes: a conjugate pad that contains a conjugate containing chromogenic particles which have an average particle diameter of 100-1,000 nm and attain a color intensity of 1.0-10.0, 10-90 wt % of the particles being derived from cellulose and 90-10 wt % of the particles being derived from a colorant; and a sample pad for an in vitro diagnostic reagent, the sample pad being constituted of nonwoven fabric that has a basis weight of 10-150 g/m | 05-05-2016 |
| 422421000 | Plural layers | 9 |
| 20120230884 | WATER ABSORBING MATERIAL AND MANUFACTURING METHOD THEREFOR - Provided is a water absorbing material having a granular core portion and a coating layer portion coating the granular core portion, which does not produce color before use and with which a test result can be determined only after use. In the water absorbing material, the coating layer portion is composed of 90 wt % to 96 wt % of a substrate and 10 wt % to 4 wt % of an excretion test material, the excretion test material contains a porous adsorbent having an adsorbance of 25 wt % or greater and including micropores, and an excretion test indicator adsorbed on the micropores of the porous adsorbent, and the excretion test indicator is added in an amount in the range of 0.015 wt % to 0.10 wt % relative to the total amount of the coating layer portion. | 09-13-2012 |
| 422422000 | Filtering | 1 |
| 20140248196 | THIN-LAYER CHROMATOGRAPHY PLATE - An object of the present invention is to provide a TLC plate which allows separation and detection of target substances on one plate. Provided is a TLC plate comprising a substrate, a separating medium layer stacked on the substrate, and a permeation layer stacked on the separating medium layer and allowing permeation of a target substance separated in the separating medium layer, wherein the separating medium layer has separating property for the target substance and optical responsiveness for ultraviolet rays, and the permeation layer has optical responsiveness different from that of the separating medium layer. | 09-04-2014 |
| 422423000 | Spreading | 3 |
| 20120082598 | Immunoassay Test Strip For Use in a Diagnostic System - An immunoassay test strip includes a sample pad for receiving a liquid patient sample; a conjugate pad fluidly coupled to the sample pad, wherein the conjugate pad contains a substantially uniform application of conjugate reagent; a contact pad fluidly coupled to the conjugate pad; a porous or bibulous member, e.g., made from nitrocellulose, fluidly coupled to the contact pad which is capable or transporting a liquid sample along the test strip, wherein the porous or bibulous member serves as the solid support upon which immunoreactions occur, and an absorbent pad fluidly coupled to the porous or bibulous member, which serves to draw sample fluid introduced onto the sample pad through the respective conjugate pad, contact pad and porous or bibulous member. | 04-05-2012 |
| 20140356253 | BIOMEDICAL DEVICES - The present invention provides a biomedical device comprising a porous hydrophilic substrate; a hydrophobic material; a fluid inlet; two or more test zones, wherein fluid vertically flows through the porous hydrophilic substrate and then distributes into the test zones. The present invention further provides a method for making a biomedical device. | 12-04-2014 |
| 20160146767 | OXYGEN DETECTING MULTILAYER BODY, AS WELL AS OXYGEN DETECTING PACKAGING MATERIAL AND OXYGEN ABSORBER PACKAGE USING THE SAME - An oxygen detecting multilayer body allows easy detection of a color change of an oxygen detecting layer, and prevention of crazing of an oxygen detecting layer. The oxygen detecting multilayer body includes a transparent resin layer, a heat seal layer, and an oxygen detecting layer containing an oxygen detecting component, placed occupying a part of a space between the transparent resin layer and the heat seal layer, wherein a spacer is placed to occupy at least a part of a space between the transparent resin layer and the heat seal layer, where the oxygen detecting layer is not provided, so as to make up a missing thickness of the oxygen detecting multilayer body, wherein the thickness of the oxygen detecting layer is from 0.5 to 40 μm, and the ratio of the thickness of the oxygen detecting layer to the thickness of the spacer is from 15:1 to 1:10. | 05-26-2016 |
| 422424000 | Support layer | 4 |
| 20110135545 | SHEET CONFIGURED WITH A TESSELLATED ZIPPER PATTERN OF IDENTICALLY SHAPED SENSOR ELEMENTS AND METHOD OF MANUFACTURE - A sheet of sensors and a method of manufacturing such sheet of sensors. The sheet is configured with (A) a tessellated zipper pattern of identically shaped elements defining (i) a right longitudinal column consisting of a base portion of a right set of elements, (ii) a left longitudinal column consisting of a base portion of a left set of elements, and (iii) an intermediate longitudinal column consisting of alternating tab portions of the right and left elements, and (B) a continuous longitudinal strip of functional material positioned only within the intermediate column. | 06-09-2011 |
| 20110200499 | LABELLED SILICA NANOPARTICLES FOR IMMUNOCHROMATOGRAPHIC REAGENT, IMMUNOCHROMATOGRAPHIC REAGENT, IMMUNOCHROMATOGRAPHIC TEST STRIP USING THE SAME, AND IMMUNOCHROMATOGRAPHIC FLUORESCENCE-DETECTING SYSTEM OR RADIATION-DETECTING SYSTEM - Labelled silica nanoparticles for immunochromatographic reagent, comprising silica nanoparticles containing a labelled substance. | 08-18-2011 |
| 20110280775 | TEMPERATURE-SENSITIVE INDICATOR - Provided is a temperature sensitive indicator, which can be held in a desired state and is not affected by temperature of a finger at the time of an operation of the temperature sensitive indicator. The temperature sensitive indicator includes: a member base ( | 11-17-2011 |
| 20150346177 | TEST STRIP AND OPTICAL ANALYSIS SYSTEM - An example test strip includes a liquid absorbing material, a reagent test portion, and an outer shell that encompasses the liquid absorbing material and the reagent test portion. The liquid absorbing material extends along the test strip and is designed to communicate liquid received through the outer shell to the reagent test portion. The outer shell is formed from a liquid impermeable material and includes a window area that allows an externally provided optical sensor to acquire an optical signal from the reagent test portion. The outer shell also includes a liquid transmission portion that is configured to allow liquid to flow into the area encompassed by the outer shell. | 12-03-2015 |
