Patent application number | Description | Published |
20090046714 | Systems and methods for network routing - Systems and methods are provided for routing data through a network. In one system, a first node is enabled to overhear packet transmissions from a second node. The cost of transmitting packets from the first node to the second node is updated based on each overheard packet transmission. In another system, when the cost of transmitting packets from a source to an overhearing node to a destination is less than the cost of transmitting packets from the source to the destination, an advertisement is sent to the source causing the packet transmissions to be routed from the source to the destination through the overhearing node. In yet another system, using a safe-sequence tag that is attached to any packet transmitted by any node and updated when it is received by another node, along with stored histories of best metric advertisements, predetermined rules are applied to maintain loop freedom. | 02-19-2009 |
20110072156 | SYSTEMS AND METHODS FOR NETWORK ROUTING - Systems and methods are provided for routing data through a network. In one system, a first node is enabled to overhear packet transmissions from a second node. The cost of transmitting packets from the first node to the second node is updated based on each overheard packet transmission. In another system, when the cost of transmitting packets from a source to an overhearing node to a destination is less than the cost of transmitting packets from the source to the destination, an advertisement is sent to the source causing the packet transmissions to be routed from the source to the destination through the overhearing node. In yet another system, using a safe-sequence tag that is attached to any packet transmitted by any node and updated when it is received by another node, along with stored histories of best metric advertisements, predetermined rules are applied to maintain loop freedom. | 03-24-2011 |
Patent application number | Description | Published |
20080208102 | CIRCUIT FOR EXTRACORPOREAL BLOOD TREATMENT AND FLOW-INVERTING DEVICE THEREIN - It is disclosed a circuit for extracorporeal blood treatment in which a flow-inverting device is interposed between a blood treatment unit and a blood pump placed on an artery branch connected with a vascular access of a patient. The flow-inverting device allows the blood flow within the filtering unit to be kept unchanged even following an inverted circulation in the patient-side artery and vein branches controlled by the blood pump. | 08-28-2008 |
20110024353 | BLOOD TREATMENT APPARATUS - A proposed blood treatment apparatus includes: a blood treatment unit, a pair of fluid pumps and a pair blood pumps. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Additionally, the fluid pumps are configured to control the operation of the blood pumps via the blood treatment fluid. Moreover, a flow control device is configured to control a trans-membrane flow between the blood side and the a fluid side of the blood treatment unit. Hence, for instance ultrafiltration can be adjusted to a desired level in a very straightforward manner. | 02-03-2011 |
20110046535 | BLOOD TREATMENT APPARATUS - A proposed blood treatment apparatus includes: a blood treatment unit, at least one fluid pump and at least one blood pump. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Additionally, at least one of the fluid pumps is configured to control the operation of at least one blood pump via the blood treatment fluid. Moreover, at least one of the blood pumps is integrated into a joint apparatus element, which includes the blood treatment unit. Thus, this blood pump and the unit may be mounted as well as be discarded jointly. | 02-24-2011 |
20110201988 | BLOOD TREATMENT APPARATUS AND METHOD - A blood treatment apparatus includes: a blood treatment unit, a pair of fluid pumps and a pair of blood pumps. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Flow measurement device which determines at least one blood flow parameter reflecting an average flow in relation to the blood treatment unit during a well-defined period of operation of the apparatus, for example while completing one operation cycle. The at least one blood flow parameter is determined based on a difference between (i) a first amount of fresh blood treatment fluid received into the blood treatment unit, and (ii) a second amount of used blood treatment fluid emitted from the blood treatment unit during another well-defined period. | 08-18-2011 |
20110201989 | BLOOD TREATMENT APPARATUS AND METHOD - A blood treatment apparatus, including a blood treatment unit configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid, a pair of fluid pumps configured to pass blood treatment fluid through the blood treatment unit, a pair of blood pumps configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel, each blood pump including a pump chamber and a flexible member separating the pumping chamber into a first blood accumulating container and a second working fluid accumulating container where the flexible member is configured to vary a volume relationship between the first and the second accumulation containers. A control unit and a measuring device are configured to emit a feedback signal indicative of the amount of working fluid received into, or discharged from at least one of the second accumulation containers whereby the pumped mass or volume of working fluid is determined by the control unit at an arbitrary position of the flexible member. | 08-18-2011 |
20130319920 | BLOOD TREATMENT APPARATUS WITH FLOW DIVIDER FOR LIMITING AN ELECTRICAL CURRENT - A blood treatment apparatus comprising: 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 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 separates 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. | 12-05-2013 |
20140061132 | METHOD TO TREAT BLOOD BY CONTROLLING BLOOD PUMPS WITH FLUID PUMPS - A washer press apparatus for washing and dewatering a wide range of solids concentrations of pulp in liquid suspensions includes multiple distinct displacement wash zones about a drum with multiple nips. | 03-06-2014 |
20140165733 | METHOD AND DEVICE FOR DETECTING CONFIGURATIONS OF EXTRACORPOREAL BLOOD CIRCUIT, APPARATUS COMPRISING DETECTING DEVICE, AND COMPUTER PROGRAM FOR PERFORMING THE METHOD - A method for detecting a property of an extracorporeal line set in an apparatus for extracorporeal blood treatment. The extracorporeal line set is arranged to be connected to a patient. The method includes: measuring a first pressure in a flow path, measuring a second pressure in the flow path, comparing the first and second pressures, and determining a detected extracorporeal line set property based on the pressure comparison. | 06-19-2014 |
20140174542 | DISPOSABLES FOR BLOOD TREATMENT, AND METHODS OF OPERATING THE SAME - A disposable for use in blood treatment including a blood treatment unit and two membrane pumps connected in parallel on one side of the blood treatment unit. The disposable is operable in a single-needle mode, in which the pumps generate a pulsatile flow of blood through the blood treatment unit, and in a double-needle mode, in which the pumps generate an essentially continuous flow of blood through the blood treatment unit. The pumps connect to a supply of treatment fluid such that alternating flows of treatment fluid causes the pumps to generate the desired flows of blood in the single-needle and double-needle modes. The treatment fluid may be used as motive fluid for displacing the blood in the membrane pumps and/or as control fluid for controlling opening and/or closing of upstream and downstream commutation valves in the membrane pumps. | 06-26-2014 |
20140231319 | FILTERING OF A TIME-DEPENDENT PRESSURE SIGNAL - A device removes first pulses in a pressure signal of a pressure sensor which is arranged in a fluid containing system to detect the first pulses, which originate from a first pulse generator, and second pulses, which originate from a second pulse generator. The first pulse generator operates in a sequence of pulse cycles, each pulse cycle resulting in at least one first pulse. The device repetitively obtains a current data sample, calculates a corresponding reference value and subtracts the reference value from the current data sample. The reference value is calculated as a function of other data sample(s) in the same pressure signal. The fluid containing system may include an extracorporeal blood flow circuit, e.g. as part of a dialysis machine, and a cardiovascular system of a human patient. | 08-21-2014 |
20140248600 | BLOOD TREATMENT APPARATUS ADAPTED TO PRESERVE PARTS THEREOF - A blood treatment apparatus adapted to preserve a blood treatment unit between blood treatment sessions. The blood treatment apparatus is configured to i) perform a blood treatment session and thereby use the blood treatment unit, ii) fill the blood treatment unit with a preservation fluid comprising at least one treatment fluid concentrate of a type that is used to prepare the treatment fluid, iii) maintain the preservation fluid in the blood treatment unit until a next blood treatment session is prepared, iv) dispatch the preservation fluid from the blood treatment unit in preparation of a next blood treatment session, and v) perform a next blood treatment session and thereby extend the use of the blood treatment unit. A related method is also described. | 09-04-2014 |
20140298891 | DETECTING BLOOD PATH DISRUPTION IN EXTRACORPREAL BLOOD PROCESSING - A device monitors a blood path from a blood vessel access of a human subject through an extracorporeal blood processing apparatus and back to the blood vessel access. A pumping device in the blood path is operable to pump blood through the blood path from the blood withdrawal device to the blood return device. The monitoring device obtains pressure data from a pressure sensor arranged upstream of the pumping device in the blood path, and processes the pressure data for detection of a disruption of the blood path downstream of the pumping device, e.g. caused by VND (Venous Needle Dislodgement). The disruption is detected by evaluating presence/absence of cross-talk pulses at the pressure sensor, where the cross-talk pulses originate from one or more pulse generators in the extracorporeal blood processing apparatus and have propagated on a propagation path in a direction downstream of the pumping device through the blood return device, the blood vessel access and the blood withdrawal device to the pressure sensor. | 10-09-2014 |
Patent application number | Description | Published |
20120281562 | APPARATUS AND METHOD FOR RENDERING VIDEO WITH RETRANSMISSION DELAY - A system, apparatus, and method for rendering a video stream, the video stream having a plurality of frames. One method includes receiving the plurality of frames via a network, each frame having an estimated arrival time, determining a retransmission rendering delay, based on a round-trip delay and a round-trip delay constant, for a current frame of the plurality of frames using a processor, determining a render time for the current frame using a sum of the current frame's estimated arrival time and the retransmission rendering delay, and rendering the current frame at the render time. | 11-08-2012 |
20120281572 | Method And Device For Determining A Jitter Buffer Level - It is disclosed a method for determining a buffer level of a jitter data buffer ( | 11-08-2012 |
20140153431 | METHOD AND DEVICE FOR DETERMINING A JITTER BUFFER LEVEL - A buffer level for jitter data buffer is determined. A frame payload size difference is determined for a plurality of video frames encoded into data packets sequentially received from a network. The difference is a difference in a payload size of a current frame and a previous frame. A frame network transit delay is determined as a difference in a transport time between the current frame and the previous frame and an expected transport time between the current frame and the previous frame. A slope and a variance of a linear relationship between the frame payload size difference and the frame network transit delay are determined for the plurality of video frames. Finally, a buffer level of a jitter data buffer is determined using a maximum frame payload size, an average frame payload size, the slope and the variance. | 06-05-2014 |