54 results about "Arterial canal" patented technology

The invention relates to a blood treatment device by extracorporeal circulation comprising a filter having a primary chamber and a secondary chamber separated by a semi-permeable membrane; a blood circuit comprising an arterial line intended to come from the patient, the filter's primary chamber and the venous line intended to return to the patient; a dialysate circuit comprising the filter's secondary chamber and at least a drain line for circulating the waste intended to come from the filter and intended to go to a drain; a first bag in fluid communication with the drain line; at least a first gravimetric weighing means linked to the first bag, fluid flow rate adjustment means acting on the drain line; a control unit linked to the first gravimetric weighing means and with the fluid flow rate adjustment means; a second bag in fluid communication with the drain line, the control unit being capable of receiving weight signals from the first gravimetric weighing means and of controlling the fluid flow rate adjustment means to load one of the bags with liquid while the other bag unloads liquid, and vice-versa.The invention also relates to a single-use drain line for use in a treatment device according to the invention.

The measurement of blood flow in a dialysis shunt is obtained by injection of an indicator material into a venous line leading from dialysis equipment to the shunt. The blood flow in an arterial line leading from the shunt at a location downstream of the venous line to the dialysis equipment is monitored by an arterial line sensor for the presence of the indicator material. A detector connected to the sensor provides a dilution curve in response to the presence of the indicator material and the blood flow in the shunt is calculated from the area under the dilution curve. The locations of the arterial and venous lines in the shunt can be reversed to obtain a measurement of blood recirculation from the venous line into the arterial line.

The present invention relates to a method for removing blood from an extracorporeal blood circuit and / or a functional device, each connectable or connected with a blood treatment apparatus for the purpose of blood treatment of a patient. The blood treatment apparatus of the method comprises or is connected with at least one extracorporeal blood circuit with a line having interior portions, the extracorporeal blood circuit comprising at least one arterial line section and at least one venous line section, wherein a first section of the arterial line section is configured to be connected with a second section of the venous line section, and further comprises at least one blood pump for conveying blood within the line interior portions. The method includes the step of operating the blood pump in a second conveying direction which is opposite to a first customary conveying direction. It further relates to corresponding apparatuses.

The invention discloses a water quality modifying method of field ecological arterial canal-artificial wetland and reconstructing method of ecological system, which is characterized by the following: predisposing collected rural living effluent and little industrial waste water; flowing in the field ecological arterial canal; blending with field draining water; purifying; modulating water quantity through water collection biological pond; purifying in the artificial wetland; reconstructing ecological system to restore biological diversity.

The invention relates to an automatic insect body-fluid collector. A delivery device, a table and a positioned cutting system are arranged on a frame. The delivery device comprises a rail, a clamp base and a clamp; the clamp base can shift transversely on the rail; the clamp can shift on the clamp base upwards or downwards. During use, insect holders are arranged on the table, backs of insects in the insect holders face to the cutting device, the insect holders are clamped and moved to the cutting device by the clamp, and then the backs of the insects are driven to face to the cutting device sequentially; therefore, when the cutting device cuts out the cuts, leading to back arterial canals, on surfaces of insects, no internal organs between the back arterial canals and the abdomens can be cut, and fluids of the internal organs cannot be mixed with the insect body fluids collected.

A device (1) for the continuous monitoring of blood characteristic quantities in an external cardiovascular supporting circuit (2), said circuit (2) comprising a venous line (3), an oxygenator (4), apump (5), and an arterial line (6), comprising: a sensor (7) suitable for the measurement of the venous saturation (SAT V) and a sensor (8) suitable for the measurement of the arterial saturation (SATA) of oxygen; a sensor (11) suitable for the measurement of the flow of blood (Qb) sent by the pump (5) to the oxygenator (4); a sensor (12) suitable for the measurement of the hemoglobin (Hb); dataentering means by the operator; an electronic control unit (14) provided with a microprocessor (15) and operationally connected to a display (16), and further comprising a sensor (19) suitable for themeasurement of the flow of work gas (Gf) and a capnometer (20) adapted to measure the concentration of carbon dioxide in the blood; wherein said microprocessor (15) is provided with means adapted tocalculate the quantity relating to the amount of carbon dioxide removed by the oxygenator (V'CO2ML) and the quantity relating to the amount of oxygen transferred by the oxygenator (V'CO2ML), the microprocessor (15) being programmed to display in numerical form on the display (16) the values of all the quantities measured and calculated and in graphic form at least some of said values, being further provided means for acquiring the quantity relating to the amount of carbon dioxide removed from the patient's lung (V'CO2NL) and the microprocessor being provided with means adapted to calculate thequantity relating to the amount of total removed carbon dioxide (V'CO2total).