Patents Assigned to Ameditech, Inc.
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Patent number: 9332967Abstract: An assay test device comprises a cup container having a detachable top cover that has a volume-reducing internal structure. A pocket shaped and dimensioned to nest a chromatographic test strip cartridge is mounted against a flattened transparent portion of the cup side wall. The cartridge is held in a vertical position with an aperture near the top edge of the cup. A splash shield projects for the brim region of the cup over that aperture preventing any part of the sample fluid poured into the cup from entering the cartridge and contacting the test strips prematurely. When the lid is installed and the cup flipped upside-down, the internally projecting structure raises the level of sample fluid for better access to the cartridge aperture. The structure can be adapted to extend all the way through the inside of the cup to contact its closed bottom. A central cavity in the structure having a open end captures a small volume of fluid and preserves it for later confirmatory analysis.Type: GrantFiled: April 16, 2009Date of Patent: May 10, 2016Assignee: Ameditech, Inc.Inventors: John Wu, WaiPing Ng
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Patent number: 8541241Abstract: A fluid specimen testing device having a removable lid which carries at least one testing strip behind a transparent top viewing window. Testing is initiated by tilting the device into a stable sideways orientation to allow the specimen to contact the sampling pad portion of the strip. The device is adapted to provide stability in the upright, tilted and inverted orientations. A roll-inhibiting feature also acts as an indicator for proper roll positioning in the tilted configuration. The strips are also oriented in the lid so that they are substantially vertical when the device is in the tilted position thereby enhancing a condition for proper capillarity. The strip is carried close to the upper surface which allows it to be copied on a flat glass copier providing for more objective recordation of the test results.Type: GrantFiled: October 3, 2006Date of Patent: September 24, 2013Assignee: Ameditech, IncInventors: John Wu, Jinying Liu, Chongyang Zhao
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Patent number: 8540938Abstract: A spongy swab (16) is mounted against the distal face (15) of a piston (14) at the end of a push-rod (12). Once humected with a sample fluid, the swab and piston assembly is inserted into a tubular body (30) like the plunger of a syringe. As the swab is pushed and squeezed against the distal end (20) of the body up to a trippable stop, part of the fluid is excreted into a chromatographic immunoassay testing device (21) through a first aperture (19) in a distal section of the body. The remainder of the sample is kept in a sealed chamber (7) between the piston and the end wall of the tubular body until it is excreted through a second aperture (23) for a secondary test by pushing the piston beyond the trippable stop. That preserves the sample within the spongy swab that has been used to collect it; thus preventing the adsorption of the analytes on the surfaces of the sealed chamber, and to provide a convenient and rapid way to extract the remainder of the specimen in a syringe-like manner.Type: GrantFiled: September 18, 2012Date of Patent: September 24, 2013Assignee: Ameditech, Inc.Inventors: John Wu, Waiping Ng
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Publication number: 20130017623Abstract: A spongy swab (16) is mounted against the distal face (15) of a piston (14) at the end of a push-rod (12). Once humected with a sample fluid, the swab and piston assembly is inserted into a tubular body (30) like the plunger of a syringe. As the swab is pushed and squeezed against the distal end (20) of the body up to a trippable stop, part of the fluid is excreted into a chromatographic immunoassay testing device (21) through a first aperture (19) in a distal section of the body. The remainder of the sample is kept in a sealed chamber (7) between the piston and the end wall of the tubular body until it is excreted through a second aperture (23) for a secondary test by pushing the piston beyond the trippable stop. That preserves the sample within the spongy swab that has been used to collect it; thus preventing the adsorption of the analytes on the surfaces of the sealed chamber, and to provide a convenient and rapid way to extract the remainder of the specimen in a syringe-like manner.Type: ApplicationFiled: September 18, 2012Publication date: January 17, 2013Applicant: AMEDITECH, INC.Inventor: Ameditech, Inc.
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Patent number: 8268634Abstract: A spongy swab (16) is mounted against the distal face (15) of a piston (14) at the end of a push-rod (12). Once humected with a sample fluid, the swab and piston assembly is inserted into a tubular body (30) like the plunger of a syringe. As the swab is pushed and squeezed against the distal end (20) of the body up to a trippable stop, part of the fluid is excreted into a chromatographic immunoassay testing device (21) through a first aperture (19) in a distal section of the body. The remainder of the sample is kept in a sealed chamber (7) between the piston and the end wall of the tubular body until it is excreted through a second aperture (23) for a secondary test by pushing the piston beyond the trippable stop. That preserves the sample within the spongy swab that has been used to collect it; thus preventing the adsorption of the analytes on the surfaces of the sealed chamber, and to provide a convenient and rapid way to extract the remainder of the specimen in a syringe-like manner.Type: GrantFiled: November 28, 2008Date of Patent: September 18, 2012Assignee: Ameditech, Inc.Inventors: John Wu, Waiping Ng
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Patent number: 6726879Abstract: A fluid specimen collecting and testing device has two chambers each sealable by a lid. A first chamber has a portion of the specimen volume for carrying out a field test. A second chamber preserves an untainted portion of the fluid for more rigorous laboratory testing. A volume of fluid is temporarily allowed to pass from one chamber to the other through a sealable passageway. One lid carries one or more chromatic graphic reaction testing strips.Type: GrantFiled: May 16, 2002Date of Patent: April 27, 2004Assignee: Ameditech, Inc.Inventors: Waiping Ng, John Wu