A disposable spiral electrode for a fetal scalp, comprising an electrode fixing column (6), a spiral electrode and an auxiliary electrode (6.1, 6.3) which are on the electrode fixing column (6), a twisted pair (4), an inner sleeve (8), an outer sleeve (1) and an outer sleeve fixing piece, wherein one end of the outer sleeve (1) is inserted into the outer sleeve fixing piece; the electrode fixing column (6) extends out of or retracts into the other end of the outer sleeve (1); one end of the twisted pair (4) sleeved with the inner sleeve (8) is respectively connected to the spiral electrode and the auxiliary electrode (6.1, 6.3), and the other end thereof is led out from within the outer sleeve fixing piece; an outer sleeve (2) in the outer sleeve fixing piece is movably sleeved on an inner sleeve (5) and may move relatively along the axial direction; one end of the outer sleeve (2) is in insertion connection with one end of the outer sleeve (1); a section of an inwardly concave arc (3.1) is arranged on a wire pressing ring (3) movably connected to one end of the inner sleeve (5); a groove (5.3) is formed in the edge of an end opening of the inner sleeve (5), and the wire pressing ring (3) is buckled on the end opening of the inner sleeve (5); and the inwardly concave arc (3.1) and the groove (5.3) form a meshing opening that clamps the twisted pair (4). The telescoping of the spiral electrode is convenient to control and accurate, and the twisted pair (4) is convenient to fix and reliable. The shape design of the electrode fixing column (6) is reasonable and safe to use.

Each accessory device in a set of accessory devices may establish a respective communication link between the accessory device and an ear-wearable device. A particular accessory device in the set of accessory devices may receive data via the communication link between the particular accessory device and the ear-wearable device. The data comprise information generated based on sensor signals from sensors that monitor a user of the ear-wearable device. The accessory devices perform a health monitoring activity based on the data.

An apparatus for measuring patient data includes a frame having a plurality of electrode hubs. Each hub can include one or more electrode members. The frame can be configured to receive a head of a patient. Each of the electrode hubs can have a single electrode member or a plurality of electrode members that extend from or are connected to an outer member for contacting a scalp of the head of the patient. The outer member can have at least one circuit configured to transmit data received by at least one of the electrode members to a measurement device via a wireless communication connection (e.g. Bluetooth, near field communication, etc.) or a wired communication connection.

The present invention relates to an electrode, which is an in vivo insertable electrode, including a substrate, an electrically conductive layer formed on the substrate, a platinum black layer formed on the electrically conductive layer, a self-assembled monolayer (SAM) formed on the platinum black layer, and a lubricant layer formed on the SAM, a method of manufacturing the electrode, and a medical device including the electrode. The in vivo insertable electrode according to the present invention provides excellent electrical properties such as low impedance. Further, it shows that friction with tissue occurring when the electrode is inserted is reduced, and trauma during insertion and an immune rejection response after insertion is suppressed. Further, in the long term, it is possible to detect signals with high sensitivity throughout the entire period by preventing bioadhesion of in vivo cells, such as immune cells, and other proteins.

The present invention relates to an electrode, which is an in vivo insertable electrode, including a substrate, an electrically conductive layer formed on the substrate, a platinum black layer formed on the electrically conductive layer, a self-assembled monolayer (SAM) formed on the platinum black layer, and a lubricant layer formed on the SAM, a method of manufacturing the electrode, and a medical device including the electrode. The in vivo insertable electrode according to the present invention provides excellent electrical properties such as low impedance. Further, it shows that friction with tissue occurring when the electrode is inserted is reduced, and trauma during insertion and an immune rejection response after insertion is suppressed. Further, in the long term, it is possible to detect signals with high sensitivity throughout the entire period by preventing bioadhesion of in vivo cells, such as immune cells, and other proteins.

In embodiments, a wearable cardioverter defibrillator (WCD) system includes a support structure for wearing by an ambulatory patient. When worn, the support structure maintains electrodes on the patient's body. Different pairs of these electrodes define different channels, and different patient ECG signals can be sensed from the channels. The ECG signals can be analyzed to determine which one is the best to use, for the WCD system to make a shock/no shock decision. The analysis can be according to widths of the QRS complexes, consistency of the QRS complexes, or heart rate agreement statistics.

In some examples, a medical system includes one or more trialing leads implanted within a patient, one or more sensors configured to determine a value for a sensed parameter indicative of an activity level of the patient, and processing circuitry. The processing circuitry may be configured to receive the value from the one or more sensors, determine whether the value is outside a threshold range, and—in response to determining that the value is outside the threshold range—generate information indicating a status of the one or more trialing leads. In some examples, processing circuitry may be configured to output an alert warning that patient movement could dislodge, or has already dislodged, the one or more trialing leads.

An ear tip for an earpiece including a body, an insertion end, and a retention structure. Some examples include an elongated fin along a portion of an outer leg of the retention structure. Some examples include an extended insertion end configured to insert further into a user's ear canal and including a mushroom cap for providing contact with an interior portion of the user's ear canal and to form an acoustic seal. Some examples may include an umbrella associated with the insertion end, between the mushroom cap and the body. Electrically conductive elements may be associated with any of the elongated fin, the umbrella, and the mushroom cap, to provide electrical contact with the user's skin for sensing electrical signals or for delivery of electrical stimulation.

A dry electrode and a wearable device are configured to improve the adhesiveness with a skin. The dry electrode includes: an electrode core; and an electrode pad that is conducted to the electrode core, in which the electrode core includes a plate portion that is surrounded by the electrode pad, and a core main body portion that protrudes from the plate portion, and is at least partially exposed to an outside of the electrode pad, and the electrode pad includes conductive rubber or a conductive elastomer having a volume resistivity of 0.5 to 10.0 Ω.Math.cm.

A dry electrode and a wearable device are configured to improve the adhesiveness with a skin. The dry electrode includes: an electrode core; and an electrode pad that is conducted to the electrode core, in which the electrode core includes a plate portion that is surrounded by the electrode pad, and a core main body portion that protrudes from the plate portion, and is at least partially exposed to an outside of the electrode pad, and the electrode pad includes conductive rubber or a conductive elastomer having a volume resistivity of 0.5 to 10.0 Ω.Math.cm.