Patent application number | Description | Published |
20090080757 | DETECTING ACCESS DISCONNECT BY PATTERN RECOGNITION - A blood detection system is used to detect blood in a patient undergoing an extracorporeal blood therapy, such as hemodialysis or apheresis. The blood detection system uses a digital video device, which may be a camera, such as a standard digital video camera, a low light camera, an infrared camera, or a night vision camera. The digital image is sent to a computer with image processing and pattern recognition software. The software is used to detect whether a pool of blood is forming at the access site. The system is able to detect a pool of blood atop the access site, such as when a leak or a dislodgement of a needle occurs. The system is also able to detect pooling of blood under the skin, as a result, for instance, infiltration of an arteriovenous fistula. | 03-26-2009 |
20090082649 | ACCESS DISCONNECT SYSTEM WITH OPTICAL AND OTHER SENSORS - An optical access disconnect system is useful for detecting the presence of blood. The optical access disconnect system includes one or more optical sensors placed near an access site of a patient, the optical sensors suitable for detecting the presence of blood, especially by detecting a difference in light reflected or absorbed by blood. The optical access disconnect system may also be used as an interlock to assure compliance. A detector may be placed adjacent the access site to detect the access needle, or an object or mark on the access needle or fluid line. A therapy machine, such as a dialysis machine, may be programmed not to start or continue operation unless the needle or fluid line is detected. The detector may be one of the optical sensors, calibrated or adjusted to detect a mark on the needle or access line, or may be another type of detector. | 03-26-2009 |
20090177148 | SYSTEM AND METHOD FOR DETECTING OCCLUSION USING FLOW SENSOR OUTPUT - A method and system for detecting an inclusion within an infusion system. The method includes monitoring an output signal of a flowrate sensor as fluid flows through an infusion system. The output signal is then converted with a noise reduction filter to obtain a filtered output signal. The filtered output signal is compared to a threshold value and an alarm is activated if the filtered output signal falls below a desired threshold, thereby indicating an occlusion within the infusion system. | 07-09-2009 |
20110137241 | SYSTEM AND METHOD FOR DETECTING OCCLUSION USING FLOW SENSOR OUTPUT - A method of detecting an occlusion for an infusion therapy in one embodiment includes: monitoring an output signal from a flowrate sensor for a pulsatile fluid flow having a frequency range, the pulsatile flow being through a fluid pathway to a patient; acquiring a data set that includes the output signal as a function of time; filtering the data set with a noise rejection filter to produce a filtered data set; performing spectra analysis on the filtered data set to determine a strength of the output signal in a frequency domain; calculating a signal strength for the frequency range using the strength of the output signal in the frequency domain; and comparing the signal strength of the range to at least one threshold level to determine if an occlusion is present during the infusion therapy. | 06-09-2011 |
20120296279 | ACCESS DISCONNECTION METHOD USING OPTICAL AND OTHER SENSORS - A method for detecting movement or disconnection of a needle at an access site of a patient comprising: sensing for a presence of blood at the access site while a medical procedure is performed on the patient; separately sensing for a movement of (i) the needle or (ii) tubing connected to the needle; and sending a signal indicating movement or disconnection of the needle if one of (a) the presence of blood is sensed or (b) movement is sensed under (i) or (ii). | 11-22-2012 |
Patent application number | Description | Published |
20110060361 | RECONSTITUTION AND APPLICATOR SYSTEM FOR WOUND SEALANT PRODUCT - A system for mixing or reconstituting agents including engageable syringe barrels, one of which having a male engagement region and the other a female engagement region. Each of the male and female engagement regions is provided with a screen. The screens are closely spaced from one another when the first and second syringe barrels are engaged with one another. The screens may take the form of a mesh, a plurality of protuberances, or cantilevered wedges having tapering thicknesses. | 03-10-2011 |
20110319930 | DEVICE FOR MIXING AND DISPENSING OF TWO-COMPONENT REACTIVE SURGICAL SEALANT - An applicator for mixing and applying multi-component compositions to a work surface, such as two-component surgical sealants, while avoiding clogs, preventing cross-contamination of the components until a point of intended mixing at a location within the apparatus immediately upstream of an application opening in a tip cap, decreasing pressure drop along the applicator to facilitate fluid delivery, and increasing efficiency of mixing of the components. A luer hub sub-assembly having a proximal hub and a distal hub, an elongate, four-lumened cannula, and a spray tip sub-assembly are provided, with interconnections between the sub-assemblies preserving isolation of the fluid components from one another. The tip cap sub-assembly includes registration structure to assure proper alignment between tip cap and tip insert. The end wall of the tip cap includes a spinner region with three feeders leading thereto, the fluid components remaining isolated from one another in two of the feeders, and initiating mixing with one another in a third of the feeders. | 12-29-2011 |
20120158048 | DEVICE FOR MIXING AND DISPENSING OF TWO-COMPONENT REACTIVE SURGICAL SEALANT - An applicator for mixing and applying multi-component compositions to a work surface, such as two-component surgical sealants. A luer hub sub-assembly having a proximal hub and a distal hub, an elongate, four-lumened cannula, and a spray tip sub-assembly are provided, with interconnections between the sub-assemblies preserving isolation of the fluid components from one another. The tip cap sub-assembly includes registration structure to assure proper alignment between tip cap and tip insert. The end wall of the tip cap includes a spinner region with three feeders or feeder channels leading thereto, the fluid components remaining isolated from one another in two of the feeders or feeder channels, and initiating mixing with one another in a third of the feeders or feeder channels. | 06-21-2012 |
20140078854 | Syringe Storage Tray - A storage system is provided. The system may include a tray having at least one recess in which at least one syringe is disposed, the syringe including a barrel with first and second barrel ends, and a stopper fixedly disposed between the first and second barrel ends. A tool attached to the stopper through the second barrel end, the tool having a first end attached to the stopper and a second end attached to or abutting the barrel or a surface of the recess, the first end being selectively adjustable relative to the second end to vary the distance between the first and second ends of the tool. In addition or in the alternative to the tool, the system may include a motion generator attached externally to the syringe, the motion generator being one of at least a vibration generator and a rotating frame. | 03-20-2014 |
20140114276 | RECONSTITUTION AND APPLICATOR SYSTEM FOR WOUND SEALANT PRODUCT - A system for mixing or reconstituting agents including engageable syringe barrels, one of which having a male engagement region and the other a female engagement region. Each of the male and female engagement regions is provided with a screen. The screens are closely spaced from one another when the first and second syringe barrels are engaged with one another. The screens may take the form of a mesh, a plurality of protuberances, or cantilevered wedges having tapering thicknesses. | 04-24-2014 |
20150129442 | SYRINGE STORAGE TRAY - A storage tray ( | 05-14-2015 |
Patent application number | Description | Published |
20090084379 | DRY POWDER INHALER - An dry powder inhaler is disclosed. The dry powder inhaler is designed so that a user's breath vacuums the dry powder from a well within the housing and directs the powder in a direct path to the user. This design prevents impaction and agglomeration of powder within the inhaler. A flow restrictor may be added within the inhaler to increase turbulence and thus increase dispersion of powder within the air inhaled by the user. | 04-02-2009 |
20090084718 | DIALYSIS SYSTEMS HAVING AIR TRAPS WITH INTERNAL STRUCTURES TO ENHANCE AIR REMOVAL - A dialysis fluid cassette includes a rigid portion defining first and second valve chambers, the rigid portion further defining an air separation chamber in fluid communication with the first and second valve chambers, the air separation chamber including a baffle and structured such that when the cassette is placed in a dialysis instrument, (i) the baffle extends upwardly from a bottom of the air separation chamber and (ii) first and second openings to the air separation chamber, communicating fluidly and respectively with the first and second valve chambers, are located near the bottom of the air separation chamber, such that the dialysis fluid is forced up one side of the baffle and down the other side of the baffle when flowing through the air separation chamber. | 04-02-2009 |
20090084719 | DIALYSIS SYSTEMS HAVING AIR SEPARATION CHAMBERS WITH INTERNAL STRUCTURES TO ENHANCE AIR REMOVAL - A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including a first sidewall and a second sidewall, a first fluid opening, a second fluid opening, and a separation wall extending from the first sidewall to the second sidewall, the separation wall having a free edge residing within the air separation chamber, the separation wall forcing the dialysis fluid to flow from one of the fluid openings around the free edge of the separation wall to the other of the openings. | 04-02-2009 |
20090084721 | DIALYSIS SYSTEMS HAVING AIR SEPARATION CHAMBERS WITH INTERNAL STRUCTURES TO ENHANCE AIR REMOVAL - A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including an inner surface, a fluid inlet and a fluid outlet and configured to cause a dialysis fluid to spiral around the inner surface toward the fluid outlet, such that air is removed from the dialysis fluid. | 04-02-2009 |
20090088687 | MEDICAL FLUID AIR BUBBLE DETECTION APPARATUS AND METHOD - A medical fluid air detection apparatus includes an emitter, a receiver, a housing configured to hold at least a portion of a medical fluid conduit between the emitter and the receiver, where the medical fluid conduit includes a narrowed inner diameter at the medical fluid conduit portion that forces flow of medical fluid through the narrowed diameter, and where the narrowed diameter is configured to enhance operation of the emitter and the receiver. | 04-02-2009 |
20090124963 | BALANCED FLOW DIALYSIS MACHINE - A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber. | 05-14-2009 |
20090209916 | SEALANT APPLICATOR WITH MALLEABLE SECTION - An applicator device for applying at least one agent to a target site, including: a rigid section configured for the passage of fluid therethrough, the rigid section having a proximal end portion and a distal end portion, the proximal end portion configured for communication with at least one fluid reservoir; a formable section attached to the distal end portion of the rigid section, the formable section configured to be shaped into a desired configuration, the formable section including at least a first lumen and a second lumen, the first lumen configured to receive fluid from the rigid section; and a malleable member positioned within the second lumen, wherein the malleable member is configured to assist in retaining the formable section in the desired configuration. | 08-20-2009 |
20110092895 | DIALYSIS SYSTEMS HAVING SPIRALING FLUID AIR SEPARATION CHAMBERS - A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including an inner surface, a fluid inlet and a fluid outlet and configured to cause a dialysis fluid to spiral around the inner surface toward the fluid outlet, such that air is removed from the dialysis fluid. | 04-21-2011 |
20110137236 | FLUID DELIVERY SYSTEMS AND METHODS HAVING FLOATING BAFFLE AIDED AIR REMOVAL - A medical fluid delivery system includes a fluid disposable configured to hold and transport a medical fluid and an air separation chamber in fluid communication with the fluid disposable. The air separation chamber includes at least one fluid baffle floating within the air separation chamber and configured to separate air from medical fluid traveling through the chamber. | 06-09-2011 |
20110137237 | DIALYSIS SYSTEMS AND METHODS HAVING VIBRATION-AIDED AIR REMOVAL - A dialysis system includes a dialysis fluid disposable configured to hold and transport a dialysis fluid; an air separation chamber in fluid communication with the dialysis fluid disposable; and a dialysis instrument operable to pump dialysis fluid through the dialysis fluid disposable, the instrument including a vibrator configured to vibrate the air separation chamber to separate air from the dialysis fluid traveling through the chamber. | 06-09-2011 |
20110144557 | DIALYSIS SYSTEMS AND METHODS INCLUDING CASSETTE WITH FLUID HEATING AND AIR REMOVAL - A dialysis fluid system includes an instrument including a pump actuator and a fluid heater, and a dialysis fluid cassette. The dialysis fluid cassette includes a rigid portion defining a pumping section for operation with the pump actuator and a heating section for operation with the fluid heater. The heating section includes a dialysis fluid inlet, a dialysis fluid outlet, and a dialysis fluid heating area located between the fluid inlet and the fluid outlet, the heating section further includes an air separation chamber for collecting air separated from the dialysis fluid. | 06-16-2011 |
20120065581 | DIALYSIS SYSTEMS AND METHODS INCLUDING CASSETTE WITH AIR REMOVAL - In an embodiment, a dialysis fluid cassette is disclosed. The cassette includes a plurality of walls defining at least one valve chamber, a dialysis fluid inlet, a dialysis fluid outlet and a dialysis fluid pathway. The cassette further includes a baffle extending from a first one of the walls to an opposing second one of the walls. The baffle includes an end fixed to a third one of the plurality of walls and a free end. The fixed end separates the dialysis fluid inlet from the dialysis fluid outlet and the baffle and the plurality of walls are constructed and arranged such that the flow of dialysis fluid along the pathway defined in part by the baffle slows as the flow approaches the free end of the baffle. | 03-15-2012 |
20130193073 | BALANCED FLOW DIALYSIS MACHINE - A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber. | 08-01-2013 |
Patent application number | Description | Published |
20100197817 | ANTIMICROBIAL HOUSING AND COVER FOR A MEDICAL DEVICE - A method for immobilizing dyes and antimicrobial agents on a polymeric cover or housing for a medical device is disclosed and described. The surface may be that of a catheter, a connector, a drug vial spike, a bag spike, a prosthetic device, an endoscope, a surface of an infusion pump, a key pad, a touch screen or a handle. The surfaces may also be one or more of those associated with a infusion of a medicament or dialysis treatment, such as peritoneal dialysis or hemodialysis, where it is important that the working surface for the dialysis fluid be sterile. These surfaces include connectors for peritoneal dialysis sets or for hemodialysis sets, bag spikes, dialysis catheters, and so forth. A method for determining whether a surface has been sterilized, and a dye useful in so indicating, is also disclosed. | 08-05-2010 |
20130199053 | METHOD FOR REMOVING MOISTURE FROM A CONTAINER - A system for microbially deactivating articles, such as medical, dental, veterinary and mortuary instruments and devices. The system includes vibration means for producing ultrasonic waves to facilitate drying after the completion of a liquid microbial deactivation process. | 08-08-2013 |