An apparatus for extracorporeal treatment of blood comprising a treatment unit, a blood withdrawal line, a blood return line, a preparation line and a spent dialysate line; a non-invasive blood volume sensor for determining an additional property of blood is active on a tube segment of the blood withdrawal line or of the blood return line; the sensor includes one source for directing a signal towards the blood, a plurality of detectors for receiving the signal, and a controller receiving the output signals from the detectors and determining a blood volume variation and a value of sodium concentration in the blood (Na.sub.Pl) both based on the output signals. A process of determining at least one parameter and on property of blood circulating an extracorporeal blood circuit is also disclosed.

One embodiment includes a catheter apparatus, including an elongated deflectable element including a distal end, a coupler connected to the distal end, a pusher including a distal portion, and configured to be advanced and retracted through the deflectable element, a nose connector connected to the distal portion, and including a distal receptacle having an inner surface and a distal facing opening, and an expandable assembly including flexible polymer circuit strips, each strip including electrodes disposed thereon, the strips being disposed circumferentially around the distal portion of the pusher, with first ends of the strips being connected to the coupler and second ends of the strips including respective hinges entering the distal facing opening and connected to the inner surface of the distal receptacle, the strips being configured to bow radially outward when the pusher is retracted expanding the expandable assembly from a collapsed form to an expanded form.

A wearable electronic device includes a body part made of a non-ceramic material, having an inner surface and an outer surface, wherein at least one cavity having a depth is arranged on the inner surface of the body part, an electronic part arranged in the at least one cavity, which electronic part has a thickness that is less than the depth of the at least one cavity, and a coating made of a moldable filler material on the inner surface of the body part, covering the electronic part and the at least one cavity.

A wearable electronic device including a molded body part made of a moldable ceramic material, having an inner surface, an outer surface, and at least one cavity having a depth arranged on the inner surface of the body part, an electronic part arranged in the cavity, which electronic part has a thickness that is less than the depth of the cavity, and a coating made of an epoxy material on the inner surface of the body part, covering the electronic part and the cavity.

A closed type arterial blood collection apparatus is disclosed. The closed type arterial blood collection apparatus includes a saline bag provided at a lower end thereof with a first port and a second port, an A line configured to connect an arterial blood vessel of a patient to the first port, a first three-way valve configured to open and close the A line, a blood collection unit configured to collect arterial blood through the first three-way valve, a second three-way valve provided between the first three-way valve and the first port, the second three-way valve being configured to open and close the A line, a guide tube configured to connect the second three-way valve to the second port, and a fluid conveying means configured to convey a fluid in the guide tube when the A line and the guide tube are connected to each other.

A method for controlling a light source of a pulse oximeter comprises receiving a first input value indicating an electrical variable in relation to the light source, the electrical variable comprising an electrical current flowing through the light source and/or an electrical voltage present at the light source; receiving a second input value indicating an amplitude of a sensor signal generated by a light sensor; determining at least one limit value for the electrical variable using the second input value, the at least one limit value being assigned to the minimum or maximum target value of a target value range in which the amplitude is to lie; determining at least one deviation value () indicating a deviation of the first input value from the at least one limit value; generating a control signal for controlling the light source using the at least one deviation value, such that the amplitude approximates the target value range.

Exemplary imaging systems, apparatus, and methods may include a plurality of reconfigurable antenna assemblies. The reconfigurable antenna assemblies may each include one or more antennas. The antennas may be configured in a plurality of states including a passive state in which the antenna may not perturb the electromagnetic field. The antennas may be positioned about a measurement domain such as, e.g., a conductive measurement chamber.

The subject of the invention is a method for automatic control of blood from the damaged vessel to be used in a dressing system provided with a tourniquet, a bandage and the first compression element. The method comprises the stage of applying pressure exceeding the systolic blood pressure of the patient via the compression element to a lesion site, so that the blood stops flowing through the damaged vessel, then the stage of reducing the pressure. In the pressure reduction stage, the pressure is reduced by a predetermined drop value, wherein if no blood flow is detected in the damaged vessel, then pressure reduction stage is repeated and if blood flow in the damaged vessel is detected, the pressure reduction stage is interrupted for a pressure drop time. Moreover, the subject of the invention is an automatic compression bandage system according to the invention is provided with a tourniquet with a compression element adapted to compress the damaged blood vessel at the lesion site, provided with an interface for electronic pressure control, and a CPU provided with a memory, connected to the compression element interface. The system is further provided with means for detecting the blood flow through the compressed vessel and means adapted for detecting the blood flow from compressed vessel. Moreover, the subject of the invention is a tourniquet to be used in the system according to the invention, provided with a controlled compression element and comprising a blood flow sensor and a blood loss sensor.

A sensor mounting bracket includes: a first plate portion, a second plate portion, and a coupling element coupling the first and second plate portions. When X, Y, and Z axes perpendicular to each other are assumed, a second normal vector normal to a second mounting surface of the second plate portion has Y and Z components greater than 0 in a first state in which the first reference part is aligned with X direction and a first mounting surface of the first plate portion is in XZ plane, and a first normal vector normal to the first mounting surface has Y and Z components greater than 0 in a second state in which the second reference part is aligned with X direction and the second mounting surface is in XZ plane, the first normal vector being oriented differently from the second normal vector.

A modular sensor system is disclosed. The system can include one or more sensors, a mounting unit, and a control unit. The mounting unit can enable the control unit and/or one or more sensors to be securely, but detachably, mounted to a patient's body. The control unit can include electronics and other components configured to interface with, monitor, and record data from the one or more sensors. The control unit can further include a wired bus, transceiver, antenna, or other suitable components to enable wireless communication between the system and a central control or monitor. Some or all of the components included in the control unit can be removable from the system to enable some or all of the electronics of the system to be removed.