The present invention is directed to a physiological recording device and, more particularly, to a physiological recording device that can be used without skin preparation or the use of electrolytic gels. The invention is further directed to an encouragement ring which stabilizes and helps situate the physiological recording device on a subject's skin to help provide a better electrical signal, increase surface area, and reduce and minimize noise and artifacts during the process of recording or monitoring a physiological signal. The invention is still further directed to surface features on a surface of the physiological recording device with a size and shape that will not substantially bend or break, which limits the depth of application of the recording device, and/or anchors the recording device during normal application. The invention is even further directed to a method for manufacturing a physiological recording device, and minimizing cost of manufacture.

A wireless system comprising a first wireless device and a second wireless device. The first wireless device is configured to operate with less than 15 milliamperes of current. The second wireless device has an internal power source and is configured to transmit one or more radio frequency signals to the first wireless device. The first wireless device is configured to receive the one or more radio frequency signals from the second wireless device. The first wireless device is configured to harvest energy from the one or more radio frequency signals. The first wireless device is enabled for operation after a predetermined amount of energy is harvested from the one or more radio frequency signals. A communication handshake occurs between the first and second wireless devices to indicate that the first wireless device is in communication with the second wireless device. The first wireless device is configured to perform at least one task from harvested energy.

An orthopedic system configured for pre-operative, intra-operative and post-operative assessment of a musculoskeletal system. The orthopedic system comprises a first screw, a second screw, a first device, a second device, and a computer. The first screw and the second screw are respectively coupled in a first bone and a second bone of a musculoskeletal system. The first and second screws each include electronic circuitry, one or more sensors, and an IMU. In one embodiment, a first device and a second device can be respectively located in proximity to the first and second screws. The first and second devices respectively transmit a radio frequency signal to the first and second screws. The first and second screws harvest a predetermined amount of energy and then are enabled to perform at least one task and an orderly shutdown. The computer receives measurement data from the first and second screws.

An orthopedic system configured for use in a pre-operative, intra-operative, and post-operative assessment. The orthopedic system comprises a first screw, a second screw, a first device, a second device, and a computer. The first device and the second device are respectively coupled to a first bone and a second bone of a musculoskeletal system. The first and second devices each include electronic circuitry, one or more sensors, and an IMU. A bracket, wrap, or sleeve can be used to hold the first and second devices to the musculoskeletal system. The first and second devices are configured to send measurement data to a computer. The first and second devices each have an antenna system. Electronic circuitry in the first or second devices are configured to harvest energy from a received radio frequency signal to recharge a battery to maintain operation.

A medical system comprising a patch device and a computer. The patch device is in communication with the computer. The patch device is configured for generating measurement data or providing a therapy. The patch device comprises electronic circuitry, a battery, an antenna system, one or more sensors, an IMU (inertial measurement unit), and a flexible enclosure. The antenna system can comprise a dual antenna formed on a dielectric substrate with a first antenna on a first side of the dielectric substrate and a second antenna on a second side of the dielectric substrate. The one or more sensors can comprise devices configured to provide measurement data or a therapy. The IMU is configured to measure position, movement, and trajectory of the patch device. The electronic circuitry is configured to harvest energy from one or more radio frequency signals received by the antenna system to recharge the battery.

A medical system comprising a first medical device, a second medical device, and a computer. The first medical device is configured to be placed beneath the dermis. The first medical device comprises an enclosure comprising non-electrically conductive material. A cap couples to the enclosure and is configured to seal the enclosure. The enclosure houses electronic circuitry configured to measure one or more parameter or provide a therapy. The cap couples to the ground of the electronic circuitry. The first medical device includes a dual band antenna. A first antenna is configured to operate within a first frequency band below 1 gigahertz. The second antenna is configured to operate at a frequency above 1 gigahertz. The second medical device is configured to transmit a radio frequency signal to the first medical device. The first medical device is configured to harvest the energy received from the radio frequency signal to enable the electronic circuitry and perform at least one task.

A needle electrode fixation device is configured to secure a transdermal needle electrode to a patient. The device includes a base having a body that defines a first portion and a second portion. The first and second portions are rotatable relative to each other. The first portion defines a channel configured to fit a portion of the transdermal needle electrode. The second portion defines a recess configured to fit a tip of the needle electrode. The device further includes an adhesive layer configured to affix the base to the patient. The device is at least partially transparent or translucent and includes one or more viewing windows to provide visibility of individual components, such as the needle electrode.

A solar-powered remote monitoring tag for beef cattle and other animals typically inhabiting outdoor environments combines animal health and activity monitoring with geolocation information. The tags communicate with a base station using radio communications, which in turn uses satellite internet services to communicate with a remote computing server. The remote computing server provides a user interface, such as a mobile app, that provides geospatially enabled information involving the health, activity, and location of monitored animals, thus providing timely and evidence-based decision support to the end user. The remote monitoring tags may also provide for close range communication using a near field communication transponder.

Disclosed is a sensor for measuring skin conductivity and a method of manufacturing the same, wherein the sensor includes: a base board made of a flexible material; an electrode provided on a surface of the base board, and transmitting an electrical signal; and an uneven structure provided on the electrode, and configured to increase an electrical contact area with skin via sweat secreted onto a surface of skin.

A glucose test arrangement is provided for use in a handheld meter. The arrangement comprises a disposable test pad responsive to glucose in a body fluid, and a supporting member adapted to support the test pad at an application site for applying body fluid from a user's skin onto a receiving area of the test pad. The receiving area faces away from the supporting member. One or more spacer elements are arranged on the supporting member adjacent to the test pad, wherein the one or more spacer elements have a skin-contacting end section which protrudes above the receiving area.