| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 600346000 | Sweat analysis | 10 |
| 20090270704 | PATCHES, SYSTEMS, AND METHODS FOR NON-INVASIVE GLUCOSE MEASUREMENT - Described here are patches, systems, and methods for measuring glucose. In general, the patches comprise a microfluidic collection layer and a detector, and the systems comprise a patch and a measurement device. Some methods for measuring glucose comprise cleaning the skin surface, collecting sweat from the skin surface using a microfluidic collection device, and measuring the collected glucose. Other methods comprise cleaning the skin surface, collecting sweat in a patch comprising a microfludic collection layer, and measuring glucose collected in the patch. Still other methods comprise cleaning the skin surface, collecting a first sweat sample from the skin surface in a patch comprising a microfludic collection layer and a detector layer, transferring the first sweat sample from the collection layer to the detector layer, measuring glucose in the first sweat sample, and repeating the collection, transferring, and measuring steps at least once. | 10-29-2009 |
| 20100063372 | SWEAT COLLECTION DEVICES FOR GLUCOSE MEASUREMENT - Devices, methods, and kits for collecting sweat that has come to the surface of the skin are provided. The sweat may be collected for measuring sweat glucose levels. Because sweat glucose levels correlate to blood glucose levels, the provided devices, methods, and kits may be used by diabetic patients to non-invasively monitor blood glucose levels. Sweat collection devices may be attachable to the surface of the skin and may collect about one microliter or less of sweat. Because only a small, fixed volume of sweat may be collected, the sweat glucose level may be measured in a matter of minutes. Further, as a fixed volume of sweat is tested, inaccuracies due to estimates of the sweat volume being tested are less likely to cause an inaccurate glucose measurement. | 03-11-2010 |
| 20100130843 | WIRELESS DEVICE FOR CONFIRMATORY DIAGNOSIS OF CYSTIC FIBROSIS THROUGH ANALYSIS OF SWEAT CHLORIDE - Wireless equipment for confirmatory diagnosis of cystic fibrosis through sweat testing, includes a module of analyzer/transmitter, with a box, built-in microprocessor for sweat induction analysis through chloride measurement device, radio antenna with a transmitter, battery, switch, and sensor card wiring connector with a single-use. The card has two iontophoresis electrodes, and ion-selective electrodes, built-in connector to the module, and a module terminal/receiver. The box ( | 05-27-2010 |
| 20100179403 | METHOD AND KIT FOR SWEAT ACTIVITY MEASUREMENT - The invention relates to sweat activity measurement, e.g. for determining a physiological state of a subject, embodied by a method as well as a kit with an immittance measuring circuit and electrodes with contact electrolyte. Sweat activity is considered a transport phenomenon and can be defined as a flux, e.g. gram water per skin area per second. Prior art methods determining water absorbed per gram dry stratum corneum measures skin moisture and do not truly reflect sweat activity. A periodic signal with frequency of 60 Hz or lower is applied to reduce contribution from complex admittance of the skin, and skin conductance is measured as a degree of sweat activity. The contact electrolyte allows filling of sweat ducts with sweat from sweat glands, this may be characterized in that it does not substantially fill the sweat ducts when being positioned on the skin and/or in that it has a re-absorption time constant from the sweat ducts into the Epidermis of less than 15 min. | 07-15-2010 |
| 20120184833 | Touch screen medical diagnostic device and methods - A capacitive touch screen device forms a capacitance between a body part of a user and a sensor layer. The sensor layer of the device includes capacitive sensors that allow a current to flow to the body part from the device when contact is made. The body part contacts the device through a bodily fluid. The current drawn is measured and a value for the bodily fluid is determined. This value is compared against known values to diagnose a possible medical condition or to infer characteristics of the bodily fluid. | 07-19-2012 |
| 20140012114 | Monitoring of Fluid Content - This application describes methods and apparatus for monitoring of fluid content that are suitable for in-situ, real time and/or continuous monitoring, especially of bodily fluids and in particular the content of sweat. The application also describes fabrication of such an apparatus. The apparatus comprises a multilayer structure comprising at least two electrode layers for detection of fluid content separated by at least one insulating layer. The multilayer structure defines at least one flow channel which provides a flow path for continuous flow of fluid in use, and the electrode layers form part of the sidewall of the flow channel(s). The flow channel(s) may run in a direction substantially perpendicular to the layers. The electrode layers may employ electrochemical detection and may comprise a reference electrode and an ion-sensitive electrode. The apparatus may be fabricated using various printing or deposition techniques. | 01-09-2014 |
| 20140257064 | SWEAT ANALYTE TESTING COMPONENTS AND METHODS - Embodiments of the invention include adhesive electrode sets and related methods. In an embodiment, the invention includes an adhesive electrode set. The adhesive electrode set can include a first pad, a first electrode, a first electrical contact, a first conductive lead, a second pad, a second electrode, a second electrical contact, a second conductive lead, a flexible strip, and an adhesive material. The flexible strip can include a fold. The flexible strip can be configured to allow the distance between the first pad and the second pad to increase through flexion of the flexible strip. In an embodiment, the invention includes an analyte receiving test patch. The analyte receiving test patch can include a skin contact layer, a wick, an absorbent layer, a barrier film layer, and an adhesive frame. Other embodiments are also included herein. | 09-11-2014 |
| 20150057515 | SWEAT SIMULATION, COLLECTING AND SENSING SYSTEMS - Biological chemicals, potentially found in blood are measured by collecting sweat and determining the concentration or meaning of the selected chemical in sweat. The sweat can be collected using a time based, interval collector and analyzed using an external device. It can also be collected on a one time basis, using a flexible, chemical capacitor, or on a continuous basis using a chemical, field effect transducer. | 02-26-2015 |
| 20150057516 | FULLY WIRELESS CONTINUOUSLY WEARABLE SENSOR FOR MEASUREMENT OF EYE FLUID - Novel methods and systems for monitoring the health of an eye are disclosed. For example, a resonant circuit may be fabricated on a contact lens and this circuit may be coupled to a second circuit having the same resonant current frequency. A change in a property of the eye fluid contacted by the sensor in the contact lens is communicated to an external device and a remedying action is suggested to the wearer. | 02-26-2015 |
| 20150359469 | Device for Detecting Blood Analytes Transdermally - A device qualitatively and quantitatively detects blood analytes such as alcohol by passing sweat through a semi-permeable membrane to a reaction chamber. In the reaction chamber, the sweat can react with reagents that produce a color when reacted with the analyte. The presence of the color is used to determine that the analyte is present. The intensity of the color change can be measured to quantify the amount of analyte. The device can include tamper resistance elements to prevent the device from being removed. | 12-17-2015 |
