Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 6200773 | Diagnostics based on tetrazolium compounds A reagent is suitable for measuring the concentration of an analyte in a hemoglobin-containing biological fluid, such as whole blood. The reagent comprises dehydrogenase enzyme that has specificity for the analyte, NAD, an NAD derivative, pyrrolo-quinolin... | 03/13/2001 |
| 6197040 | Lancing device having a releasable connector A lancing device has a spring-loaded lancet holder slidably mounted within a housing for carrying a disposable lancet and needle. A slider mounted in a slot in the housing is moved back for cocking the device and, after the lancet is fired, is moved forwa... | 03/06/2001 |
| 6193873 | Sample detection to initiate timing of an electrochemical assay An electrochemical assay includes a method for determining with great accuracy the time at which an applied sample bridges a gap between the electrodes of an electrochemical cell. The method involves applying a constant small current across the gap, while... | 02/27/2001 |
| 6168957 | Diagnostic test strip having on-strip calibration A dry phase reagent test strip for measuring the concentration of an analyte in a biological fluid includes a colored indicator whose hue indicates a calibration of the strip. Preferably, the test strip measures the concentration of glucose in whole blood... | 01/02/2001 |
| 6149203 | Tamper-evident closure seal A tamper-evident closure seal is imprinted on its top surface to form a pattern of adjoining matte and high-gloss areas. The bottom surface of the seal is coated with a permanent adhesive. The seal may be used to bridge a gap between two perpendicular sur... | 11/21/2000 |
| 6099802 | Hollow frustum reagent test device A hollow, frustum-shaped disposable device is used in an apparatus for measuring the concentration of an analyte in a sample of a biological fluid. The smaller end of the frustum has a porous membrane, to which a sample of the fluid may be applied. Prefer... | 08/08/2000 |
| 6084660 | Initiation of an analytical measurement in blood A distinctive optical signature permits a fluidic medical diagnostic device to measure an analyte concentration or a property of whole blood, particularly the coagulation time, only after first insuring that a whole blood sample has been introduced into t... | 07/04/2000 |
| 6045567 | Lancing device causing reduced pain A lancing device has a spring-loaded lancet holder slidably mounted within a housing for carrying a disposable lancet and needle. A knob on the back of the device has forward-extending fingers that stop the lancet holder at an adjustable predetermined poi... | 04/04/2000 |
| 5986754 | Medical diagnostic apparatus using a Fresnel reflector A device for use in a medical diagnostic apparatus includes an area for containing a sample of biological fluid as it undergoes a reaction that causes a detectable change in the sample's optical properties. The reaction area is sandwiched between a transp... | 11/16/1999 |
| 5972294 | Reagent test strip for determination of blood glucose A reagent test strip is adapted for use in a blood glucose meter. A sample of whole blood is applied to one surface of a matrix on the strip and the meter measures the reflectance of the opposite surface of the matrix at about 635 nm and 700 nm and calcul... | 10/26/1999 |
| 5968836 | Fluid conducting test strip with transport medium A reagent strip is provided for measuring the concentration of an analyte in a liquid test sample, such as glucose or cholesterol in whole blood. The reagent strip includes a testing pad containing a color-forming reagent system specific to the analyte. T... | 10/19/1999 |
| 5968760 | Temperature-Independent Blood Glucose Measurement A method for determining the presence of an analyte in a fluid is described along with various components of an apparatus specifically designed to carry out the method. The method involves taking a reflectance reading from one surface of an inert porous m... | 10/19/1999 |
| 5935138 | Spiral needle for endoscopic surgery A needle for endoscopic surgery is curved into an arc of more than 180° and twisted, so that it forms a part of a spiral, with a lateral offset between the needle point and barrel. The needle is sized to fit through a 10 mm trocar and is also blackened, ... | 08/10/1999 |
| 5902731 | Diagnostics based on tetrazolium compounds A reagent is suitable for measuring the concentration of an analyte in a hemoglobin-containing biological fluid, such as whole blood. The reagent comprises dehydrogenase enzyme that has specificity for the analyte, NAD or an NAD derivative, a tetrazolium ... | 05/11/1999 |
| 5846486 | Hollow frustum reagent test device A hollow, frustum-shaped disposable device is used in an apparatus for measuring the concentration of an analyte in a sample of a biological fluid. The smaller end of the frustum has a porous membrane, to which a sample of the fluid may be applied. Prefer... | 12/08/1998 |
| 5843691 | Visually-readable reagent test strip A multilayer reagent test strip measures the concentration of analyte in a liquid sample that is applied to it. The sample is guided to a number of assay areas arrayed along the strip, where the analyte can react with a reagent to cause a color change. Ea... | 12/01/1998 |
| 5789255 | Blood glucose strip having reduced sensitivity to hematocrit A reagent strip for measuring glucose concentration in whole blood has reduced interference of hematocrit with the glucose measurement. When a biological fluid contacts the strip, it causes, in a reagent impregnated in the strip, a color change that is a ... | 08/04/1998 |
| 5753452 | Reagent test strip for blood glucose determination A reagent test strip is adapted for use in a blood glucose meter. A sample of whole blood is applied to one surface of a matrix on the strip and the meter measures the reflectance of the opposite surface of the matrix at about 635 nm and 700 nm and calcul... | 05/19/1998 |
| 5753429 | Analyte concentration measurement using a hollow frustum A method for measuring the concentration of an analyte in a sample of a biological fluid involves a hollow, frustum-shaped disposable device. The smaller end of the frustum has a porous membrane, to which the sample is applied. Preferably, a reagent in th... | 05/19/1998 |
| 5736103 | Remote-dosing analyte concentration meter A meter is used in conjunction with a hollow, frustum-shaped disposable device to measure the concentration of an analyte in a sample of a biological fluid. The smaller end of the frustum has a porous membrane, to which a sample of the fluid may be applie... | 04/07/1998 |
| 5719034 | Chemical timer for a visual test strip A chemical timer for a direct-reading reagent test strip changes color a predetermined time after a biological fluid is applied to the strip. The strip measures the concentration of an analyte in the fluid. The timer is a dry coating of an indicator, an e... | 02/17/1998 |
| 5714123 | Protective shield for a blood glucose strip A modified blood glucose test strip reduces the risk of contamination when it is used with a blood glucose meter. The modified strip has adhered to its top surface a protective shield that is preferably cut from a sheet of transparent plastic. The shield ... | 02/03/1998 |
| 5620863 | Blood glucose strip having reduced side reactions A reagent strip for measuring glucose concentration in a biological fluid containing red blood cells has reduced interference of hematocrit with the glucose measurement. When a biological fluid contacts the strip, it causes, in a reagent impregnated in th... | 04/15/1997 |
| 5605837 | Control solution for a blood glucose monitor A control solution for use with a photometric blood glucose strip contains glucose in an aqueous suspension of carbon black. The control solution mimics blood when applied to a whole blood glucose test strip, which is then inserted into a meter. A meter r... | 02/25/1997 |
| 5515170 | Analyte detection device having a serpentine passageway for indicator strips An apparatus comprising a passageway for accepting a strip for determining the presence or quantity of an analyte is provided. The passageway has a serpentine shape to maintain the strip against an optical aperture in the passageway wall, insuring that a ... | 05/07/1996 |
| 5441741 | Freeze-dried pad There is disclosed: an absorbent, non-adherent, freeze-dried, fibre-free pad comprising from 2 to 6 parts by weight of a water-soluble biocompatible polymer and from 2 to 15 parts by weight of a liquid humectant, provided that the weight ratio of humectan... | 08/15/1995 |
| 5370900 | Thin-fingered medical glove A process for making medical gloves whose fingers have thinner walls than the rest of the gloves involves first depositing onto a hand-shaped glove form a layer of coagulant that comprises an ionic metal salt, then depositing an elastomeric layer. Part of... | 12/06/1994 |
| 5345946 | Multi-element surgical drape with sealable surgical run-off pouches A multi-element surgical drape includes a bottom sheet that is placed over a patient and a top sheet that is reversibly secured to the bottom sheet. The two sheets each have a fenestration, and the fenestrations are aligned to provide access to the surgic... | 09/13/1994 |
| 5284607 | Process for forming powder-free medical gloves A process for making powder-free medical gloves that are nevertheless easy to don involves first forming a glove on a form by successively dip-coating layers of a coagulant containing acid-soluble powder dispersed throughout, an elastomer, and an antibloc... | 02/08/1994 |
| 5180053 | Cantilevered needle park A needle park for a package that holds one or more surgical needles and sutures has a generally planar base. A cantilevered arm, fixed at one end and free at its other end, extends above and parallel to the base. A needle is introduced between the free en... | 01/19/1993 |
| 5131533 | Needle park A needle park for a package that holds one or more surgical needles and sutures has a generally planar base and two collinear walls that are perpendicular to the base. A cutout near one end of the first wall separates an end section of the wall from the b... | 07/21/1992 |
| 5067950 | Wound drainage tube/reservoir connector A connector that permits safe and convenient attachment of a wound drainage tube to a fluid reservoir includes a hollow penetrator whose one end is attachable to the drainage tube and whose other end is sharpened to permit it to pierce a penetrable plug t... | 11/26/1991 |
| 5052551 | Oval wrap suture package with unequal end radii An oval wrap suture package that permits sutures to be dispensed with less likelihood of suture binding is provided. In one embodiment, the package has a suture winding channel with semicircular end sections whose radii are unequal. In another embodiment ... | 10/01/1991 |
| 4924349 | Face plate assembly for electrical devices A wallbox-mountable face plate assembly includes a support plate for the control device, an intermediate plate that attaches to the support plate, and a face plate that snaps onto the intermediate plate. The face plate has a particularly simple constructi... | 05/08/1990 |
| 4924151 | Multi-zone, multi-scene lighting control system A system for controlling power to multiple groups of lights requires only a few controls. The system permits power to each group of lights to be adjusted independently and, at the same time, to be stored for later recall. Several combinations of power lev... | 05/08/1990 |
| 4889999 | Master electrical load control system A system controls power to multiple a.c. lighting loads from both a central location and from individual controls that are located near the loads. The system includes individual wallbox dimmers that include enabling switches, a master control, and isolati... | 12/26/1989 |
| 4841221 | Position-sensing circuit A position-sensing circuit includes an elongated electrically-conductive element divided into two elongated segments. A conductor moves along the element, maintaining electrical contact with at least one of the segments. A first capacitor is connected to ... | 06/20/1989 |
| 4835816 | Twist-off knob A knob mounts on one end of a shaft whose other end guides a slidable element, such as the wiper of a slide potentiometer. The shaft has an elongated cross section, and the knob has a pair of generally parallel raised ribs on each of two facing interior s... | 06/06/1989 |
| 4825075 | Non-electronic gain control A receiver for a radiated electromagnetic signal includes elements that respectively transmit a high percentage and a low percentage of the incident signal, in combination with a detector. The device is adapted for mounting on or near a horizontal surface... | 04/25/1989 |
| 4742188 | Sliding electrical control A sliding electrical control provides a method for controlling the power to electrical systems, such as lamps, motors, etc. from more than one location. The control is designed to be mounted on one side of a plate and operated from the other side. It thus... | 05/03/1988 |
