The invention relates to a circuit arrangement for a protective-conductor connection to at least two fluid-conducting lines 11, 12, in particular to at least two fluid-conducting lines which are guided outwards from the interior of a housing 1 of a medico-technical device, in particular the housing of a blood treatment device. The circuit arrangement comprises a plurality of protection apparatuses 16A, 16B; 17A, 17B for electrical contacting which are designed such that an electrical connection to a fluid in the line can be produced using each protection apparatus for electrical contacting. In the circuit arrangement, at least two protection apparatuses 16A, 16B; 17A, 17B for electrical contacting are assigned to each fluid-conducting line 11, 12. As a result, two protective measures are taken for each fluid-conducting line. In addition, the protection apparatuses 16A, 16B; 17A, 17B of one fluid-conducting line 11; 12 are each electrically connected to another protection apparatus 16A, 16B; 17A, 17B of another fluid-conducting line 11; 12. The protective-conductor concept according to the invention improves safety for the patient and makes it possible to test the protective-conductor connection in a simple manner.

According to some embodiments, a system may treat blood outside the body of a patient. The system may include one or more pumps configured to pump blood in a fluid flow path at a collective rate over 5 liters per minute. The system may include one or more heat exchangers operable to heat at least a portion of the blood to a temperature of at least 42 degrees Celsius and to allow the blood to cool one or more degrees following heating. The system may include one or more convection dialysis modules configured to perform convection dialysis on at least a portion of the blood at least after the one or more heat exchangers allow the blood to cool one or more degrees.

The present disclosure provides systems for controlling infusion of one or more supplements into blood received from a patient. The systems may include at least one extracorporeal circulatory support system including a pump, fluid conduits, and at least one sensor configured to measure one or more parameters of the blood. The system also may include a fluid flow regulator coupled to the extracorporeal circulatory support system; and a processor, a memory, and associated circuitry communicatively coupled to the at least one sensor and the at least one fluid flow regulator. The system receives measurement signals corresponding to parameters of blood from the at least one sensor and determines one or more target values for the parameters of blood based on a patient profile and/or the measurements. The system may control the fluid flow regulator to cause an infusion of at least one supplemental fluid from a supplemental fluid source into the blood.

An automatic monitoring system for a medical treatment device helps to ensure that an a medical treatment device operated at a treatment location away from a clinic is preformed safely. The monitoring system may verify that an assistant is present during treatment of the patient. Among the features disclosed biometric authentication to verify that a trained assistant is present, a presence detector to ensure the assistant is continuously present during treatment, and warning and recovery processes that allow intermittent lapses in the continuous presence of the assistant. The treatment device also communicates with a remote server or terminal.

Systems and sensor clip assemblies for optically monitoring blood flowing through a blood chamber are provided. A sensor clip assembly includes emitters and photodetectors positioned on opposing arms, a signal conditioning circuit for conditioning raw analog signals generated by the photodetectors while the sensor clip assembly is fastened to a blood chamber, and an analog-to-digital converter for converting the conditioned analog signals to raw digital data. The sensor clip assembly may include a microcontroller for calculating parameters of blood flowing through the blood chamber such as hematocrit, oxygen saturation, and change in blood volume from the raw digital data. The sensor clip assembly is in communication with a networked computer, and the networked computer is in communication with a remote computer configured to provide a user interface for monitoring and/or controlling the sensor clip assembly.

A blood treatment apparatus is disclosed. In an example, the blood treatment apparatus includes a blood treatment unit; a blood line configured to extract blood from a blood source, pass the blood through the blood treatment unit and deliver treated blood to a target vessel; and a fluid line configured to pass treatment fluid through the blood treatment unit and deliver used treatment fluid to a fluid sink. A flow divider is arranged in the fluid line for separating treatment fluid into to a first fluid section and a second fluid section, thereby electrically isolating the fluid sections such that electrical current flowing in the fluid line between the fluid sections is limited. Related manufacturing and verification methods are also described.

A system associated with a medical treatment device for detecting a condition of a patient includes an input device including at least a camera or a microphone. The system also includes a medical treatment device with a controller/classifier and at least one of flow controller, a pump, and/or an alarm output. The controller/classifier has at least a video-image processor or an audio processor configured to recognize a face and a body or to recognize changes in skin color, facial expression, or body position. The controller/classifier may also recognize speech and classify predefined normal and irregular sound patterns, and output state data corresponding thereto. The controller/classifier is connected to apply the state data to the at least one flow controller, pump, and/or alarm output.

A fluid sampling or infusion device for an extracorporeal blood treatment apparatus comprises: a protective body (29) having a first aperture (30) and a second aperture (31) and comprising a connecting device (28) configured to connect, optionally in removable manner, the protective body (29) to a sampling or infusion site (20) of the extracorporeal blood treatment apparatus (1); a needle assembly (33) comprising a first end (34) connected or connectable, optionally in removable manner, to a syringe (22) and a needle (35) protruding from a second end opposite the first end (34). The needle assembly (33) is movable inside the protective body (29) between a first position and a second position. In the first position the needle (35) is completely enclosed by the protective body (29) and in the second position the needle (35) protrudes from the second aperture (31) to pierce the sampling or infusion site (20).

A mount interface is described that includes a latch; and a latching assembly configured to receive the latch so as to lock the latch at a set position with respect to the latching assembly, wherein the latching assembly includes a housing provided with an irregular orifice configured to receive the latch; a first plug disposed in the housing so that a first portion of the irregular orifice overlies the first plug; and a second plug disposed in the housing adjacent the first plug so that a second portion of the irregular orifice overlies the second plug. Such a mount interface provides rapid and secure locking of a latch to the latching assembly.

A clamping device that is always capable of clamping a flexible tube in a good manner and assuredly closing the flexible tube without a large clamping force. A clamping device includes a holding member that holds a flexible tube in which a fluid is allowed to flow, and a clamping member that clamps and closes a clamping portion of the flexible tube that is held by the holding member. The clamping device further includes a heating device that heats the clamping portion of the flexible tube.