A bioimpedance measurement apparatus is provided. The bioimpedance measurement apparatus includes an electrode-side board that is configured to be connected to a current electrode in contact with a body and that includes a current source configured to apply a current to the current electrode. The electrode-side board may be connected via a cable to a board in which a processing circuit configured to process a signal acquired through the electrode-side board and/or a frequency signal generator configured to provide a predetermined frequency signal to the electrode-side board are located.

Provided is a garment for measuring biological information having favorable conductivity and stretchability that prevent a wiring and a bonding part from being disconnected by stress or deformation when the garment is put on, taken off, or washed, while detecting a stable electrical signal. In a wiring with a stretchable electrode according to an embodiment of the present invention, the electrode includes an electrically conductive sheet including electrically conductive fine particles and a binder resin, and the wiring incudes an electrically conductive fiber structure including an electrically conductive fiber. A part of a bond between the electrode and the wiring has a peeling strength of 0.5 to 20 N/cm.

Disclosed are highly compliant bioelectronic neural interface devices with hydrogel adhesion. Example devices include adhesion-promoting functional groups that facilitate enhanced electrical contact with the nerve without the need for continuous application of pressure. A transfer process may be used to fabricate the device using a sacrificial material (e.g., polyacrylic acid (PAA)) that has tunable solubility in aqueous media, helping avoid the need for harsher release chemicals that may affect the properties of the hydrogel. The transfer process also helps achieve electrode contacts that are flush with a surface of the device and facilitate more intimate contact with the nerve. A gradual change in Young's modulus from a stiff contact pad region to a more compliant electrode contact region may be achieved via a varied amount of an epoxy-based material (such as SU-8 ) and with silicone-based material (such as polydimethylsiloxane (PDMS)) to encapsulate the device cable.

A biomedical electrode includes a hydrogel layer, a trace layer above the hydrogel layer, the trace layer having a conductive trace, a conductive adhesive layer above the trace layer, and a terminal above the conductive adhesive layer. The hydrogel layer, trace layer, conductive adhesive layer, and terminal are assembled together without requiring a piloting effect to overcome misalignment between these components.

A biomedical electrode includes a hydrogel layer, a trace layer above the hydrogel layer, the trace layer having a conductive trace, a conductive adhesive layer above the trace layer, and a terminal above the conductive adhesive layer. The hydrogel layer, trace layer, conductive adhesive layer, and terminal are assembled together without requiring a piloting effect to overcome misalignment between these components.

A system and method for using electroencephalographic (EEG) signals to monitor brain function, preferably detect occurrence of traumatic brain injury (TBI) to screen, assess, and potentially provide mitigating treatment to improve short and long term adverse outcomes of mild TBI (mTBI) and TBI. The system and method provides a readily available tool to assist in accurate and objective assessment of subjects with TBI, immediately at the point of injury (POI), during transportation, or upon arrival at a care facility, that preferably is applicable without advanced training or expertise.

A vital signs monitoring patch with integrated display (VSM) includes a user access layer for accessing a display section and a first printed silver-silver chloride (Ag—AgCl) electrode. A polyethylene foam layer including battery and plunger cut-outs. A printed circuit board assembly (PCBA) layer including vitals sign monitoring sensors and the battery and connected to the first and second printed Ag—AgCl electrodes. The polyethylene foam layer bonded to the user access layer and the PCBA layer. A sensor layer including reflection mode oximetry components and the second printed Ag—AgCl electrode. A hydrogel conductive adhesive to interact between a user skin and the second printed Ag—AgCl electrode. A medical tape layer bonded to the user skin and the sensor layer. A plunger connected to the PCBA layer and configured to power on the VSM, where user access of the first printed Ag—AgCl electrode completes a circuit with the second printed Ag—AgCl electrode.

A vital signs monitoring patch with integrated display (VSM) includes a user access layer for accessing a display section and a first printed silver-silver chloride (Ag—AgCl) electrode. A polyethylene foam layer including battery and plunger cut-outs. A printed circuit board assembly (PCBA) layer including vitals sign monitoring sensors and the battery and connected to the first and second printed Ag—AgCl electrodes. The polyethylene foam layer bonded to the user access layer and the PCBA layer. A sensor layer including reflection mode oximetry components and the second printed Ag—AgCl electrode. A hydrogel conductive adhesive to interact between a user skin and the second printed Ag—AgCl electrode. A medical tape layer bonded to the user skin and the sensor layer. A plunger connected to the PCBA layer and configured to power on the VSM, where user access of the first printed Ag—AgCl electrode completes a circuit with the second printed Ag—AgCl electrode.

A cardiac electrotherapy device is described having an electrode lead set (100) and an instruction placard (140) having a set of medical guidance instructions (210) integrated with the electrode lead wire (160). The medical guidance instructions are printed on an elongated readable surface which is attached along its long edge to the electrode lead wire. The invention is particularly useful during cardiac emergencies involving pediatric or infant patients, whose medical dosage limits may be closely correlated with patient length.

A cardiac electrotherapy device is described having an electrode lead set (100) and an instruction placard (140) having a set of medical guidance instructions (210) integrated with the electrode lead wire (160). The medical guidance instructions are printed on an elongated readable surface which is attached along its long edge to the electrode lead wire. The invention is particularly useful during cardiac emergencies involving pediatric or infant patients, whose medical dosage limits may be closely correlated with patient length.