A device for impedance measurements on body segments. Outputs of a current source are connected to inputs of current changeover switches. Each current changeover switch has outputs that are interconnectable with the input of the respective current changeover switch. The outputs of the current changeover switches are connected to electric feed lines of current electrodes. Measuring electrodes detect voltage signals, which are used with the current supplied by the current source for the impedance measurements of the body segments. Switching devices are incorporated into the electric feed lines near the current electrodes. By switching the current changeover switches and switching devices, the device respectively connects only two current electrodes to the current source and disconnects all other current electrodes from the electric feed line by switching the switching device and the electric feed line from the current source by switching the current changeover switches.

The present disclosure discusses a mechanically stabilized sensor. The sensor is configured for intra-vaginal placement and can be used during labor and diagnostic procedures not associated with labor. The sensor can detect bioelectrical signals generated by the uterus and fetal heart. The mechanical stabilization of the sensor to the vaginal mucosa can reduce noise in the bioelectrical signals detected with the sensor. The sensor's stability enables long-term, intra-vaginal recordings to be made.

A suction cup electrode and methods thereof configured to be used with an electrocardiogram (EKG or ECG). The suction cup electrode is reusable and creates an effective comfortable suction to most skin surfaces of most patients and is able to be applied to and removed from patients with minimal force and discomfort for patients.

An electrocardiogram sensor (400) is provided, comprising an electrode array (100), comprising a substrate (102) interconnecting three or more spaced apart electrodes (101a-c); and a flexible sheet (200) having a greater areal extent than that of the electrode array (100). The flexible sheet (200) is configured to secure the electrodes (101a-c) to the body of a subject.

An ECG device comprising limb leads and chest wall leads is described which is also suitable for deriving the hemodynamic activity of the heart and the function of the vessels and, respectively, also for evaluating the fluid equilibrium. This is achieved in that at least part of the electrodes of the multichannel ECG is developed with additional embodiments for physical emissions and measurements, for example, electric current and voltage, pressure, sound vibrations, light, and that an electrode is provided for the current supply and, respectively, the voltage measurement at the upper thorax aperture. Furthermore, an alternating current field is built up between the electrodes or, respectively, the distance between the electrodes is used as an ion conductor. Thus, during the conventional ECG writing, the acceleration of the blood and hence the cardiac output, the valve closure and the valve opening, as well as the mechanics of individual circulation sections, for example, also the pulse wave transit time, the blood flow in body sections, the body composition etc. can also be registered and output simultaneously with the routine ECG.

The present invention provides materials and methods for forming an interface between an appliance and living tissue using a foamed elastomeric material which contacts the tissue or similar surfaces. The elastomeric material is in the form of a durable and washable material that when applied to living tissue or similar surfaces displaces and flows in to non-conforming areas creating an air and/or water tight seal that substantially returns to an original shape when removed from the contact surface. The appliance may also include structural elements designed to optimize comfort, compliance and seal achieved through minimizing the pressure variation along the contact surface of the therapy device.

Provided is an electrode member 1 to be attached to a body surface of a user, and includes an adhesion part 2 including a through hole 23 near a center and capable of adhering to a body surface of a user, an electrode 3 inserted into the through hole of the adhesion part, and a first retention part 4A configured to retain a solution for dissolving sebum C, in which a flow channel R including a gap is formed between an inner peripheral surface of the through hole of the adhesion part and the electrode, and the solution for dissolving sebum retained in the first retention part is able to flow out from one end side of the through hole through the flow channel.

Provided is an electrode member 1 to be attached to a body surface of a user, and includes an adhesion part 2 including a through hole 23 near a center and capable of adhering to a body surface of a user, an electrode 3 inserted into the through hole of the adhesion part, and a first retention part 4A configured to retain a solution for dissolving sebum C, in which a flow channel R including a gap is formed between an inner peripheral surface of the through hole of the adhesion part and the electrode, and the solution for dissolving sebum retained in the first retention part is able to flow out from one end side of the through hole through the flow channel.

An electrocardiogram sensor (400) is provided, comprising an electrode array (100), comprising a substrate (102) interconnecting three or more spaced apart electrodes (101a-c); and a flexible sheet (200) having a greater areal extent than that of the electrode array (100). The flexible sheet (200) is configured to secure the electrodes (101a-c) to the body of a subject.

A multipart, non-uniform patient contact interface and method of use are disclosed.