Patent application number | Description | Published |
20080202812 | Simultaneous tubular handling system - A system and method for building and handling oilfield tubular stands while drilling operations are simultaneously and independently occurring with one drilling deck, one derrick, and one rotary system. An offline guided path horizontal to vertical arm lifts and moves in the same plane tubulars stored horizontally on the catwalk and positions the tubulars vertically directly into a preparation hole for assembling and disassembling tubular stands while online drilling operations are simultaneously being conducted. A stand arm lifts and lowers the tubulars into and out of the adjustable preparation hole, and transports the tubulars for storage to an auxiliary tubular racking station in the upper part of the derrick. A bridge racker crane moves tubular stands from the auxiliary tubular racking station to the top drive or another tubular racking station. | 08-28-2008 |
20100326672 | Simultaneous tubular handling system - A system and method for building and handling oilfield tubular stands while drilling operations are simultaneously and independently occurring with one drilling deck, one derrick, and one rotary system. An offline guided path horizontal to vertical arm lifts and moves in the same plane tubulars stored horizontally on the catwalk and positions the tubulars vertically directly into a preparation hole for assembling and disassembling tubular stands while online drilling operations are simultaneously being conducted. A stand arm lifts and lowers the tubulars into and out of the adjustable preparation hole, and transports the tubulars for storage to an auxiliary tubular racking station in the upper part of the derrick. A bridge racker crane moves tubular stands from the auxiliary tubular racking station to the top drive or another tubular racking station. | 12-30-2010 |
20120217024 | Simultaneous Tubular Handling System - A system and method for building and handling oilfield tubular stands while drilling operations are simultaneously and independently occurring with one drilling deck, one derrick, and one rotary system. An offline guided path horizontal to vertical arm lifts and moves in the same plane tubulars stored horizontally on the catwalk and positions the tubulars vertically directly into a preparation hole for assembling and disassembling tubular stands while online drilling operations are simultaneously being conducted. A stand arm lifts and lowers the tubulars into and out of the adjustable preparation hole, and transports the tubulars for storage to an auxiliary tubular racking station in the upper part of the derrick. A bridge racker crane moves tubular stands from the auxiliary tubular racking station to the top drive or another tubular racking station. | 08-30-2012 |
20140110174 | Simultaneous Tubular Handling System - A system and method for building and handling oilfield tubular stands while drilling operations are simultaneously and independently occurring with one drilling deck, one derrick, and one rotary system. An offline guided path horizontal to vertical arm lifts and moves in the same plane tubulars stored horizontally on the catwalk and positions the tubulars vertically directly into a preparation hole for assembling and disassembling tubular stands while online drilling operations are simultaneously being conducted. A stand arm lifts and lowers the tubulars into and out of the adjustable preparation hole, and transports the tubulars for storage to an auxiliary tubular racking station in the upper part of the derrick. A bridge racker crane moves tubular stands from the auxiliary tubular racking station to the top drive or another tubular racking station. | 04-24-2014 |
Patent application number | Description | Published |
20080243211 | USER SELECTABLE MASKING SOUNDS FOR MEDICAL INSTRUMENTS - A medical instrument includes a sound card or an internal capability for generating sounds from a digital music or sound file. The medical instrument is one which generates unwanted noise and is constantly in the presence of a patient or an operator, and may be in a home, a clinic, a laboratory, or other intimate setting. For instance, a patient may be typically connected for hours to a hemodialysis machine that has a noisy pump. A blood-plasma volunteer may be hooked to a noisy blood separation machine for a period of time. A laboratory technician may work in close proximity to a sample preparation machine that constantly gurgles and whirrs. In each instance, a sound card and a speaker can generate previously-recorded masking noises that make that the presence and operation of the machine more tolerable. | 10-02-2008 |
20090177149 | METHOD OF PURGING AIR FROM A MEDICAL FLUID MACHINE - A medical fluid machine includes a housing providing a first wall and a second wall, the first and second walls at least partially defining a pump chamber. A fluid receptacle is located within the pump chamber, the fluid receptacle including first and second flexible membranes configured to be moved apart to accept a medical fluid and moved together to dispel the fluid. A medical fluid outlet is in communication with the fluid receptacle. A first valve arrangement is configured to enable medical fluid in a sufficiently air-free condition to be delivered from the receptacle through the medical fluid outlet to a patient. A second valve arrangement is configured to enable medical fluid with entrained air to be delivered instead from the receptacle through the medical fluid outlet to an entrained air destination. | 07-09-2009 |
20100298662 | SYSTEM AND METHOD FOR AUTOMATED DATA COLLECTION OF TWENTY-FOUR HOUR ULTRAFILTRATION AND OTHER PATIENT PARAMETERS USING WIRED OR WIRELESS TECHNOLOGY - A dialysis system includes: a dialysis machine for performing a first dialysis session on a patient at a first time of a day; a remote exchange device for performing a second dialysis session on the patient at a second time of the day, the remote exchange device configured to record an amount of ultrafiltration (“UF”) that is removed from the patient over the second dialysis session; and a communication link between the dialysis machine and the remote exchange device, wherein the dialysis machine is configured to receive the recorded amount UF removed from the remote exchange device via the communication link and determine a total amount of UF removed from the patient over the first and second sessions. | 11-25-2010 |
20120283629 | PERITONEAL DIALYSIS SYSTEM HAVING HEATER PAN AND WEIGHT SENSOR - A peritoneal dialysis machine includes: (i) a housing; (ii) an actuator carried by the housing so as to be able to interact with a peritoneal dialysis fluid carrying disposable; (iii) at least one heating element carried by the housing; (iv) a heater pan providing an upper surface of the housing, the heater pan cooperating with the at least one heater element to provide heat to a container of peritoneal dialysis fluid placed onto the heater pan, the container being part of or in communication with the peritoneal dialysis fluid carrying disposable; and (iv) a weight sensor cooperating with the heater pan to sense the weight of the peritoneal dialysis fluid located within the container. | 11-08-2012 |
20130096481 | SYSTEMS AND METHODS FOR OPTICAL ACCESS DISCONNECTION - An access disconnection system includes: a material capable of absorbing blood from a patient, a light emitter positioned to emit light onto a first portion of the material, the first portion spaced at least a threshold distance from a second portion of the material, the second portion located so as to cover arterial line and venous line access points to the patient, the threshold distance including a distance from the access points to provide for an allowable amount of blood seepage from either access point due to a needle stick, a receiver positioned adjacent to the light emitter to receive light reflected off of the first portion of the material, and circuitry coupled to the light emitter and receiver and configured to provide an output (i) when light received by the receiver reaches a particular level or (ii) indicative of an amount of light received by the receiver. | 04-18-2013 |
20140074018 | METHOD OF PERFORMING PERITONEAL DIALYSIS USING PNEUMATIC VALVES - A method of performing peritoneal dialysis includes: (i) locating a supply of fresh dialysis fluid above a patient's peritoneal cavity; (ii) locating a drain or a drain container below the patient's peritoneal cavity; (iii) connecting a supply line to the supply of fresh dialysis fluid and the patient's peritoneal cavity; (iv) connecting a drain line to the patient's peritoneal cavity and the drain or drain container; (v) pneumatically opening a supply line valve during a fill cycle; (vi) gravity filling the patient's peritoneal cavity with the supply line valve open during the fill cycle; (vii) pneumatically opening a drain line valve during a drain cycle; and (viii) draining the patient's peritoneal cavity with the drain line valve open during the drain cycle. | 03-13-2014 |
20140088484 | ACOUSTIC ACCESS DISCONNECTION SYSTEMS AND METHODS - An access disconnection system includes a blood treatment machine including a housing, an access site detection housing separate from the blood treatment machine housing, a transmitter positioned in the access site housing and configured to transmit an ultrasound wave into a blood stream of a patient, a receiver positioned in the access site housing and configured to receive a reflection of the ultrasound wave from the blood stream of the patient; and electronic circuitry in communication with the transmitter and the receiver. The electronic circuitry is supported by the access site detection housing, and the transmitter is configured to send a wireless disconnection output to the blood treatment machine. The disconnection output is indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of the arterial line and the venous line has occurred. | 03-27-2014 |
20140330193 | ACOUSTIC ACCESS DISCONNECTION SYSTEMS AND METHODS - An access disconnection system includes: an arterial line; a venous line; a transmitter configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; and electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred. | 11-06-2014 |
20150080782 | ELECTRICAL HEARTBEAT ACCESS DISCONNECTION SYSTEMS - An access disconnection system includes a venous line, an arterial line, a first electrode coupled to (i) the arterial line, (ii) a patient, or (iii) a cardiac catheter assembly; and a second electrode coupled to (i) the venous line, or (ii) the cardiac catheter assembly. The access disconnection system further includes electronic circuitry communicating electrically with the first second electrode to sense an electrical heartbeat signal generated by the patient. The electronic circuitry is configured to send a disconnection output indicative of a change in the electrical signal sufficient to expect that an access disconnection of the venous line has occurred. | 03-19-2015 |
Patent application number | Description | Published |
20110040243 | AUTOMATED DIALYSIS SYSTEM INCLUDING A PISTON AND VACUUM SOURCE - A peritoneal dialysis system includes a hardware unit including a piston and at least one vacuum source; a door connected to the hardware unit, the door including a cavity, the cavity having a diameter; the hardware unit further including a structure positioned opposite the door, the structure defining an aperture; a disposable unit including first and second fluid receiving membranes, the disposable unit disposed between the structure and the door; the at least one vacuum source operable to apply a vacuum to at least one of the first and second membranes of the disposable unit; the piston, at least a portion of which moves through the aperture, in operation contacting one of the membranes, the piston including a piston head having a diameter smaller than the diameter of the cavity in the door; and a dialysis fluid opening enabling dialysis fluid to be pulled in between the first and second membranes. | 02-17-2011 |
20110040244 | AUTOMATED DIALYSIS SYSTEM INCLUDING A PISTON AND STEPPER MOTOR - A peritoneal dialysis system includes a hardware unit including a piston having a contact surface and a stepper motor configured to move the piston; and a disposable unit received by the hardware unit, the disposable unit including a moveable membrane operable with the contact surface of the piston, the piston moveable towards and away from the disposable unit, wherein (i) the piston and the membrane are positioned relative to each other and (ii) the hardware unit is configured to apply a negative pressure to the moveable membrane of the disposable unit so that the negative pressure causes the moveable membrane to contact and conform to a shape of the contact surface and to follow the piston as the piston is moved away from the disposable unit by the stepper motor, and wherein the shape-contacted membrane moves with the piston as the piston is moved into the disposable unit by the stepper motor. | 02-17-2011 |
20120071816 | AUTOMATED DIALYSIS SYSTEM INCLUDING TOUCH SCREEN CONTROLLED MECHANICALLY AND PNEUMATICALLY ACTUATED PUMPING - A peritoneal dialysis system includes: a hardware unit including a piston having a contact surface, a pneumatic source for supplying a negative pressure, a stepper motor, a controller including a processor and memory programmed to control the pneumatic source and the stepper motor, and a video monitor operating with a touch screen for sending and receiving information to and from the controller; and a disposable unit including a moveable membrane positioned adjacent to the contact surface, the programmed processor and memory operable to (i) cause the pneumatic source to apply the negative pressure to the membrane so that the negative pressure moves the membrane to conform to a shape of the contact surface and (ii) control the stepper motor so that the membrane follows the piston as the piston is moved away from the disposable unit and moves with the piston as the piston is moved into the disposable unit. | 03-22-2012 |
20130150781 | AUTOMATED DIALYSIS SYSTEM USING PISTON AND NEGATIVE PRESSURE - A peritoneal dialysis system is provided that includes a hardware unit, a disposable unit received by the hardware unit, and a controller. The hardware unit includes a recessed area, a piston having a contact surface, a pneumatic source for supplying a negative pressure, and an actuator configured to move the contact surface of the piston into and out of at least a portion of the recessed area. The disposable unit includes an outer member fitted at least partially within the recessed area of the hardware unit and a moveable membrane positioned between the contact surface of the piston and the outer member when the disposable unit is received by the hardware unit. The controller is configured to cause the pneumatic source to apply the negative pressure to the moveable membrane so as to conform the moveable membrane to a shape of the contact surface of the piston and follow the contact surface when the piston is moved towards and away from the outer member fitted at least partially within the recessed area. | 06-13-2013 |
20150088054 | AUTOMATED PERITONEAL DIALYSIS SYSTEM USING STEPPER MOTOR - An embodiment of a peritoneal dialysis system includes an enclosure, a door hingedly attached to the enclosure, a stepper motor housed by the enclosure, a solid pump piston in operable communication with the stepper motor and including a solid pump shaft attached to or integrally formed with a solid pump head, and a disposable unit contacting the enclosure and the door. The disposable unit includes a moveable membrane operable with the solid pump head. The stepper motor is configured to move the solid pump head towards and away from the disposable unit. The system further includes a position detection apparatus operable with the stepper motor and located to provide an output indicative of a position of the solid pump head relative to a reference position. | 03-26-2015 |
Patent application number | Description | Published |
20090299272 | DIALYSIS SYSTEM HAVING AUTOMATED EFFLUENT SAMPLING AND PERITONEAL EQUILIBRATION TEST - A dialysis system includes at least one dialysis fluid pump actuator, a disposable cassette including at least one pump chamber operable with the at least one pump actuator, the disposable cassette further including a plurality of fluid ports configured to be connected fluidly to a plurality of fluid containers, and a processor programmed to cause the at least one pump actuator to operate the at least one pumping chamber to selectively move effluent dialysis fluid to a drain container or to a sample container. | 12-03-2009 |
20110106003 | DIALYSIS SYSTEM AND METHOD FOR CASSETTE-BASED PUMPING AND VALVING - A peritoneal dialysis system includes a disposable cassette including a flexible sheet; a hardware unit including (i) at least one pump actuator and piston head moved by the pump actuator, (ii) at least one valve actuator, (iii) at least one sensor, and (iv) a disposable cassette interface for interfacing with the disposable cassette, the disposable cassette interface including: (a) at least one pump aperture, the at least one piston head moveable out of and retractable into the at least one pump aperture to move a corresponding pumping portion of the flexible sheet of the disposable cassette, the piston head moving within a vacuum chamber, the vacuum chamber enabling a vacuum to be pulled around the piston head to the flexible sheet of the disposable cassette; (b) at least one valve aperture, at least a portion of the at least one valve actuator located in the valve aperture to move a valve portion of the flexible sheet of the disposable cassette; and (c) at least one sensor aperture, the at least one sensor located in the at least one sensor aperture, the at least one sensor operable with a sensor portion of the flexible sheet of the disposable cassette. | 05-05-2011 |
20120259276 | PUMPING SYSTEMS FOR CASSETTE-BASED DIALYSIS - A dialysis machine includes: a hardware unit including at least one pump actuator, at least one valve actuator and a cassette interface, the cassette interface including: (i) a plate that abuts the cassette; (ii) at least one pump aperture defined by the plate; (iii) at least one pump head moveable out of and retractable into the at least one pump aperture to operate a pumping portion of the cassette; (iv) at least one valve aperture defined by the plate; (v) at least one valve apparatus moveable out of and retractable into the at least one valve aperture to operate a valve portion of the cassette; (vi) at least one sensor aperture defined by the plate; and (vii) at least one sensor located in the least one sensor aperture, the at least one sensor operable with a sensor portion of the cassette. | 10-11-2012 |
20140188040 | AUTOMATED DIALYSIS SYSTEM USING PISTON AND NEGATIVE PRESSURE - A peritoneal dialysis system is provided that includes a hardware unit, a disposable unit received by the hardware unit, and a controller. The hardware unit includes a recessed area, a piston having a contact surface, a pneumatic source for supplying a negative pressure, and an actuator configured to move the contact surface of the piston into and out of at least a portion of the recessed area. The disposable unit includes an outer member fitted at least partially within the recessed area of the hardware unit and a moveable membrane positioned between the contact surface of the piston and the outer member when the disposable unit is received by the hardware unit. The controller is configured to cause the pneumatic source to apply the negative pressure to the moveable membrane so as to conform the moveable membrane to a shape of the contact surface of the piston and follow the contact surface when the piston is moved towards and away from the outer member fitted at least partially within the recessed area. | 07-03-2014 |
Patent application number | Description | Published |
20090198174 | SYSTEM FOR MONITORING AND CONTROLLING PERITONEAL DIALYSIS - A peritoneal dialysis system includes a cycler operable with a disposable cassette, the cassette connected to a patient line, the cassette capable of fluid communication with a catheter having access to a patient's peritoneal cavity, the cycler configured to: (i) convey dialysis fluid to the peritoneal cavity through the patient line and the catheter during a patient fill phase; (ii) allow the dialysis fluid to dwell within the peritoneal cavity during a patient dwell phase; (iii) convey dialysis fluid away from the peritoneal cavity through the patient line and the catheter during a patient drain phase; and (iv) sense, at first and second sensing locations of the disposable cassette via first and second pressure sensors, an intraperitoneal pressure through the catheter to optimize an amount of fluid conveyed during the patient fill phase, so that the peritoneal cavity is not overpressurized during the patient dwell phase. | 08-06-2009 |
20110028892 | PERITONEAL DIALYSIS SYSTEM HAVING CASSETTE-BASED-PRESSURE-CONTROLLED PUMPING - A peritoneal dialysis system includes a removable cassette defining a flexible pump chamber and a pressure sensing area that is fluidly connected to the pump chamber wherein, during operation of the peritoneal dialysis system, peritoneal dialysis fluid is contained in the pump chamber; and a peritoneal dialysis machine configured to secure the removable cassette, peritoneal dialysis machine including (i) a pressure sensor positioned to align with and to contact the pressure sensing area of the removable cassette when the removable cassette is secured to the peritoneal dialysis machine, and (ii) a controller connected to the pressure sensor and adapted to change the operation of the peritoneal dialysis machine in response to changes in pressure sensed by the pressure sensor, wherein the pressure sensor and the pressure sensing area are arranged so that the pressure sensor measures a pressure of fluid in a fluid passage between the pump chamber and a patient during operation of the peritoneal dialysis system. | 02-03-2011 |
20130150780 | METHOD AND APPARATUS FOR MONITORING AND CONTROLLING PERITONEAL DIALYSIS THERAPY - A method of performing peritoneal dialysis is provided. The method involves sensing a pressure in a fluid upstream or downstream of a pump chamber and adjusting a planned peritoneal dialysis treatment based on the sensed pressure to avoid an alarm condition. An intra-peritoneal pressure may be sensed and may be related to a head height of a peritoneal dialysis patient relative to a pump actuation. The fill volume to the peritoneal dialysis patient may also be limited due to the sensed pressure. | 06-13-2013 |