On Piston Type Injector Or Aspirator Patents (Class 604/121)
  • Patent number: 10556059
    Abstract: An infusion pump drive and its methods of use are disclosed. In one embodiment, the infusion pump drive may include a transmission component and a spring in line with the transmission component. Displacing the transmission component may compress the spring to apply a force causing fluid to dispense from an associated reservoir. Depending on the particular embodiment, the transmission component may either be displaced continuously or displaced multiple times to dispense fluid from the reservoir.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 11, 2020
    Assignee: Biogen MA Inc.
    Inventors: David Cross, Michael Paton
  • Patent number: 10519942
    Abstract: A method of operating a pump can include advancing a stepper motor one or more additional steps in a first direction after detecting a first change in a limit sensor state corresponding to a piston reaching an end of its travel in a first direction. After advancing the stepper motor the additional step or steps in the first direction, the stepper motor can be reversed and advanced in a second direction until a second change in the limit sensor state is detected. The stepper motor can then be advanced in the second direction a predetermined number of steps associated with a full travel of the piston.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: December 31, 2019
    Assignee: Accriva Diagnostics, Inc.
    Inventors: Ajit Mishra, David Miers
  • Patent number: 10406297
    Abstract: Devices and methods for tissue transfer are described where a cannula may be inserted into the breast of a subject at one of several points of entry. Insertion of the cannula into the breast may be accomplished by using a guidance system to distinguish between tissue types. Once desirably positioned, the cannula may be withdrawn from the breast while automatically (or manually) injecting the fat in multiple deposits of adipose tissue or fat such that the deposited fat remains within the tract formed by the withdrawn cannula. Multiple tracts of the deposited fat may be injected within the breast until the breast has been desirably remodeled and/or augmented.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: September 10, 2019
    Assignee: LifeCell Corporation
    Inventors: Geoffrey C. Gurtner, Michael H. Rosenthal, Brian J. Domecus, Darin Gittings, Kinman Hong
  • Patent number: 10321813
    Abstract: Embodiments of the invention include an endoscope including a distal chamber and related methods of use, for example, with an endoscopic instrument.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: June 18, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Russell F. Durgin, Kenneth M. Blair, F. Anthony Headley, Jr., Dennis Boulais
  • Patent number: 10314971
    Abstract: A method for detecting an occlusion in an infusion line (3) connected to an infusion device (1) comprises: measuring a force (F) applied to a piston (21) by a pusher device (12) of an infusion device (1) for moving the piston (21) along a movement direction (X) into a cylindrical tube (20) in order to deliver a medical fluid from the cylindrical tube (21) towards an infusion line (3) connected to the cylindrical tube (20); calculating, from the measured force (F), a value indicative of a pressure (P) in the cylindrical tube (20), wherein for calculating said value indicative of said pressure (P) a frictional force value (F0) indicative of a friction of the piston (21) relative to the cylindrical tube (20) is taken into account; and comparing said value indicative of said pressure (P) to a threshold value to determine whether an occlusion is present in the infusion line (3).
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 11, 2019
    Assignee: Fresenius Vial SAS
    Inventor: Rémy Wolff
  • Patent number: 10300193
    Abstract: A controller for a programmable medical pump is configured to select a drug library file that corresponds to a received medication name and determine a number of times status information is received within a designated time period from a current time during an infusion therapy. The example controller is also configured to determine if the number of times the status information is received comports with an accumulated medication dosage limit using a dose per administration program parameter. Responsive to the number of times the status information is received matching or exceeding the accumulated medication dosage limit, the controller is configured to prevent another administration of the medication until enough time has passed such that the number of times the status information has been received within the designated time period from the current time is less than the accumulated medication dosage limit.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: May 28, 2019
    Assignee: Baxter International Inc.
    Inventors: Janice Stewart, Randolph Meinzer, Debra K. Bello, Janet Mullan, James D. Jacobson, Tuan Bui, Qui Chau
  • Patent number: 10207050
    Abstract: There is provided a computer-implemented method for controlling dispensing of at least one biologically active agent in intermittent doses over discrete predefined time periods, comprising the steps of: (i) initiating the dispensing of the biologically active agent in intermittent doses at a first background dosage rate; and (ii) adjusting to a background dosage rate according to the number of input signals received over each predefined time period from a signalling device.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: February 19, 2019
    Assignee: Singapore Health Services Pte. Ltd.
    Inventor: Tiong Heng Alex Sia
  • Patent number: 10130799
    Abstract: An inflator comprises a body, a first drive member, and a second drive member. The body defines a reservoir that is configured to hold fluid and includes an outlet. The first drive member is operable to move through the reservoir to drive fluid from the reservoir through the outlet. The second drive member is engaged with the first drive member. The second drive member is movable relative to the body through a first range of motion to actuate the first drive member to drive fluid through the outlet at a first rate. The second drive member is movable relative to the body through a second range of motion following the first range of motion. The first drive member is configured to either drive fluid through the outlet at a second rate or not drive fluid through the outlet as the second drive member moves through the second range of motion.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: November 20, 2018
    Assignee: Acclarent, Inc.
    Inventors: Randy J. Kesten, Arthur M. Lin, Scott O. Chamness
  • Patent number: 9833563
    Abstract: Systems for managing pressure in a fluid reservoir chamber of a fluid infusion device are provided. For example, a fluid infusion device is provided. The fluid infusion device comprises a housing defining a reservoir chamber for receiving a fluid reservoir. The fluid infusion device also comprises a drive system contained within the housing for dispensing fluid from the fluid reservoir. The fluid infusion device comprises a pressure management system at least partially defined in the reservoir chamber to manage air pressure in the reservoir chamber.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: December 5, 2017
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Juan M. Alderete, Jr., Andrew E. Weaver, Matthew William Yavorsky, Benjamin A. Grover, Pablo Vazquez
  • Patent number: 9724469
    Abstract: Present invention relates to a method of controlling the discomfort level experienced by a subject. The method comprises receiving a signal from the subject to initiate comfort relief, determining vital sign data of the subject, determining whether the vital sign data fulfills a predetermined criterion, and performing an infusion regime of infusing a comfort relief drug into the subject based on whether the vital sign data fulfills the predetermined criterion.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: August 8, 2017
    Assignee: Singapore Health Services Pte. Ltd.
    Inventor: Tiong Heng Alex Sia
  • Patent number: 9623174
    Abstract: In various embodiments, an implantable pump includes a cannula. The pump (e.g., the cannula thereof) may include, for example, flow sensors, pressure sensors, filters, and/or other components.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: April 18, 2017
    Assignee: MINIPUMPS, LLC
    Inventors: Changlin Pang, Jason Shih, Fukang Jiang, Sean Caffey, Mark Humayun, Yu-Chong Tai
  • Patent number: 9522237
    Abstract: A flush syringe assembly comprises a barrel including a cylindrical side wall having an inside surface defining a chamber for retaining fluid, an open proximal end and a distal end having a passageway therethrough in fluid communication with the chamber. A plunger including an elongate body portion having a stopper at its distal end is provided. The stopper is slidably positioned in fluid-tight engagement with the inside surface of the barrel for driving fluid out of the chamber through the passageway. The stopper includes a distal portion and a proximal portion separated by a spring element and configured to compress when fluid is being driven through the passageway by motion of the plunger and to continue to drive fluid through the passageway after motion of the plunger has stopped.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: December 20, 2016
    Assignee: Becton, Dickinson and Company
    Inventors: Thomas Alheidt, Anthony J. Kosinski
  • Patent number: 9314375
    Abstract: A method for controlling intraocular eye pressure via fluid exchange in the body is presented. The method may comprise providing a system to sense and regulate pressure, then implanting the system into the eye. The system may comprise four main components: a cannula, a sensor, a controller and a pump. The method works to engage in a fluid exchange which slowly increases/decreases intraocular pressure until a desired level is reached. Once the desired level is reached, the intraocular pressure is held steady and any external pressure perturbations are removed.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: April 19, 2016
    Assignee: University of South Florida
    Inventor: Christopher Lawrence Passaglia
  • Patent number: 9101335
    Abstract: A method, device, and computer program product for managing alarms during a care process are disclosed. Care is provided to a subject according to settings of at least one care device and physiological parameters obtained from the subject are monitored, wherein the monitoring comprises triggering an alarm in response to detection of an alarm event. To enable smooth transfer from an alarm event to normal monitoring state, at least one available control option is determined for recovering from the alarm event. A user is prompted to select one of the at least one available control option, thereby to obtain a user-selected control option and the settings of the at least one care device are adjusted according to the user-selected control option.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: August 11, 2015
    Assignee: General Electric Company
    Inventor: Rene Coffeng
  • Patent number: 8986244
    Abstract: A method of treating a prostate condition, including the steps of providing a needleless injector that includes a body at a proximal end, an injection shaft extending from the body to a distal end of the injection shaft, an injection orifice at the distal end of the injection shaft and positioned for fluid ejection in a lateral direction relative to a longitudinal axis of the injection shaft, a pressure source in communication with the fluid chamber, and an extendable tissue tensioner located at the distal end of the injection shaft proximal to the injection orifice; inserting the injection shaft into a urethra so the injection orifice is located within the prostatic urethra; actuating the tissue tensioner to contact urethral tissue, and injecting fluid from the injection orifice into the prostate.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: March 24, 2015
    Assignee: AMS Research Corporation
    Inventors: Vincent G. Copa, Sidney F. Hauschild
  • Publication number: 20150065958
    Abstract: At least one dosing unit for an infusion pump is disclosed having a piston pump with a pump cylinder, a plunger arranged within said cylinder, and a plunger driving part provided for transmitting rotational torque from a driving unit to the plunger without itself being linearly displaced. The cylinder, the plunger and the plunger coupling element are coaxially arranged along a longitudinal axis and rotatable around said axis in regard to static parts of the dosing unit. The plunger and cylinder each having threads which engage with each other in such a way that a rotational movement of the plunger around the longitudinal axis results in a linear displacement of the plunger along the longitudinal axis. The dosing unit also having first coupling parts associated with the cylinder and second coupling parts associated with the plunger.
    Type: Application
    Filed: February 28, 2014
    Publication date: March 5, 2015
    Applicant: Roche Diagnostic Operations, Inc.
    Inventors: David Teutsch, Martin Wyss, Ulrich Haueter, Simon Scheurer
  • Publication number: 20150051546
    Abstract: An injection device (10) for administering a liquid has a barrel (12) with an outlet (20) for the liquid, and a piston (14) arranged in the barrel (12). The piston is designed to force the liquid out from the outlet (20) by displacement into the barrel (12). The injection device (10) has a pressure relief means (16) with a sensor (24) and with an actuator (26). The sensor (24) detects the pressure of the liquid in the barrel (12) directly or indirectly. The actuator (26) prevents a further increase in the pressure of the liquid.
    Type: Application
    Filed: March 20, 2013
    Publication date: February 19, 2015
    Inventors: Andre Weiss, Heinz Wiegel
  • Patent number: 8876751
    Abstract: In various embodiments, a handpiece may include an irrigation line coupled to an adjacent line reservoir with a piston configured to move within the adjacent line reservoir to increase an irrigation pressure in the irrigation line near a surgical site. In some embodiments, a sensor may be used to detect an occlusion break in the aspiration line and information from the sensor may result in signaling an actuator to move the piston in response to the occlusion break detection to compensate for a vacuum pressure drop associated with the occlusion break. The handpiece may further include a purge bypass line between the irrigation line and the adjacent line reservoir to allow flow from the irrigation line to travel through the adjacent line reservoir to purge the adjacent line reservoir.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: November 4, 2014
    Assignee: Alcon Research, Ltd.
    Inventors: Bruno Dacquay, Robert J. Sanchez, Jr.
  • Publication number: 20140276411
    Abstract: A fluid delivery system includes a pressurizing mechanism. The pressurizing mechanism includes: a substantially cylindrical body having a movable member positioned therein that divides the body into a first chamber and a second chamber; a plunger rod connected to a first side of the movable member and extending through a substantially closed first end of the body; and an elongated member connected to a second side of the movable member and extending through a substantially closed second end of the body. The plunger rod configured to operatively engage a fluid container. Fluid is dispensed from the fluid container by forming a vacuum within at least the first chamber by moving the movable member toward the second end of the body, allowing atmospheric pressure to enter the second chamber, and actuating the pressurizing mechanism to cause the moving member to move towards the first end of the body.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Kevin P. Cowan, Michael J. Yanniello
  • Patent number: 8808232
    Abstract: A needleless injector including a body including a fluid chamber; an outer shaft extending from an outer shaft proximal end to an outer shaft distal end, wherein the outer shaft includes an outer shaft lumen to accommodate an injection shaft; an injection shaft located within the outer shaft lumen and moveable lengthwise and/or rotationally within the outer shaft lumen, wherein the injection shaft includes an injection shaft proximal end, an injection shaft distal end, an injection shaft terminus, and an injection lumen. The injector further includes an injection orifice at the distal end of the injection shaft and in fluid communication with the fluid chamber through the injection lumen; a pressure source in communication with the fluid chamber; and an optical device that allows viewing a location at a distal end of the device.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: August 19, 2014
    Assignee: AMS Research Corporation
    Inventors: Vincent G. Copa, Sidney F. Hauschild
  • Publication number: 20140155828
    Abstract: A jet injector that includes a prefilled syringe. The syringe includes a fluid chamber that contains a medicament. The syringe also has an injection-assisting needle, and a plunger is movable within the fluid chamber. A housing is configured for allowing insertion of the needle to a penetration depth. An energy source is configured for biasing the plunger to produce an injecting pressure in the medicament in the fluid chamber of between about 80 and 1000 p.s.i. to jet inject the medicament from the fluid chamber through the needle to an injection site.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: Antares Pharma, Inc.
    Inventor: Paul R. Lesch, JR.
  • Patent number: 8707789
    Abstract: A syringe having an internal pressure gauge comprises a syringe barrel; a piston within the barrel; a spring coupled to the piston at a first position of the spring, the spring having a second portion that is movable in response to fluid pressure within a syringe cavity; and a pressure gauge having an indicator correlated to a plurality of positions of the second portion of the spring to indicate a pressure of a fluid. The spring can be a bellows. The first portion of the spring can be coupled to the piston to form a sliding seal with an inner wall of the syringe, and the second portion of the spring can move longitudinally within the syringe without sealing contact.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: April 29, 2014
    Assignees: Beth Israel Deaconess Medical Center, Massachusetts Institute of Technology
    Inventors: Joan E. Spiegel, Alexander H. Slocum, Adrienne Watral, Samuel Duffley, Alexander Slocum, Jr.
  • Publication number: 20140088502
    Abstract: An injector system for delivery of a pharmacological agent to biological tissue having a plurality of needles arranged in an array, a plurality of reservoirs configured to receive a pharmacological composition therein, the reservoirs being in fluid communication with a respective one of the plurality of needles, a pneumatic pressure source, a pneumatic drive system that is configured to induce a first discharge of the pharmacological composition out of the reservoirs and needles in a plurality of delivery modes, agent delivery volume control means for controlling volume of the pharmacological composition discharged from the needles, and a control system having actuation control means for controlling said pneumatic drive system. The control system is programmed to control the delivery modes.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 27, 2014
    Inventors: Robert G. Matheny, Bret Herscher, Michael Perry
  • Publication number: 20140081208
    Abstract: The present disclosure describes an injection pressure monitoring device including a pressure sensor, an injection pressure monitoring system and kits for monitoring injection pressure generated at a needle tip when injecting a therapeutic fluid composition into tissue, to avoid generating potentially damaging pressure in the tissue being treated.
    Type: Application
    Filed: May 11, 2012
    Publication date: March 20, 2014
    Inventor: Michael Maloney
  • Publication number: 20140074026
    Abstract: A pressurized medical instrument may include a piston handle system, a locking release system and a pressure display system. The piston handle system may include a piston, a piston seal, a handle and a rear cover. The locking release system may include a push button, a fixed support, a locking block, one or more springs and a slide block. The pressure display system may include a coating, a gauge stand, a lateral board, a gauge stand seal ring, a pressure gauge seal ring, a snapper, a pressure gauge and a rotary Luer conical tapered fitting. The pressurized medical instrument may facilitate rapid boosting operation by two hands, vacuum pumping by two hands and rapid pressure relief by a single hand. The instrument is characterized by ease-of-operation, quick boosting and pressure relief for observing easily the pressure value at different operating angles.
    Type: Application
    Filed: June 21, 2013
    Publication date: March 13, 2014
    Applicant: Beijing Demax Medical Technology Co., Ltd.
    Inventors: Deng Qiang JIA, Qiang LI, Zhen Shan BAO
  • Patent number: 8632498
    Abstract: Devices and methods for tissue transfer are described where a cannula may be inserted into the breast of a subject at one of several points of entry. Insertion of the cannula into the breast may be accomplished by using a guidance system to distinguish between tissue types. Once desirably positioned, the cannula may be withdrawn from the breast while automatically (or manually) injecting the fat in multiple deposits of adipose tissue or fat such that the deposited fat remains within the tract formed by the withdrawn cannula. Multiple tracts of the deposited fat may be injected within the breast until the breast has been desirably remodeled and/or augmented.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: January 21, 2014
    Assignee: TauTona Group Research and Development Company, L.L.C.
    Inventors: Joseph Rimsa, Brian J. Domecus, Christopher S. Jones, Paul James Lingane
  • Patent number: 8622997
    Abstract: A system in accordance with embodiments of the present invention includes a cannula interconnected to a collection vessel by a flexible conduit. The collection vessel can comprise an impermeable or permeable collection vessel. The collection vessel is contained within a collection container, and can feature a tapered end. An air inlet may be provided in the flexible conduit and/or in a collection canister lid.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: January 7, 2014
    Inventor: Ronald D. Shippert
  • Patent number: 8608642
    Abstract: An environmentally sensitive hydrogel material swells or collapses in response to a parameter such as pH level associated with consumption of food by a patient. This swelling or collapsing is harnessed to treat morbid obesity or some other condition of the patient. The swelling or collapsing of the hydrogel may be used to tighten a gastric band or gastric valve when the patient starts eating; then loosen the band or valve when the patient is between meals. The swelling or collapsing of the hydrogel may also be used to increase the size of a space occupying device in the patient's stomach when the patient starts eating; then decrease the size of the space occupying device when the patient is between meals. The swelling or collapsing of the hydrogel may also be used to selectively restrict the absorption of nutrients within a patient's gastrointestinal tract, such as in the duodenum.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: December 17, 2013
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Janna M. Burrell, Randal T. Byrum, Robert Louis Koch, Jr., Larry D. Pool, Christopher W. Widenhouse
  • Patent number: 8597248
    Abstract: Devices and methods for tissue transfer are described where a cannula may be inserted into the breast of a subject at one of several points of entry. Insertion of the cannula into the breast may be accomplished by using a guidance system to distinguish between tissue types. Once desirably positioned, the cannula may be withdrawn from the breast while automatically (or manually) injecting the fat in multiple deposits of adipose tissue or fat such that the deposited fat remains within the tract formed by the withdrawn cannula. Multiple tracts of the deposited fat may be injected within the breast until the breast has been desirably remodeled and/or augmented.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: December 3, 2013
    Assignee: TauTona Group Research and Development Company, L.L.P.
    Inventors: Joseph Rimsa, Brian J. Domecus, Christopher S. Jones, Paul James Lingane
  • Patent number: 8574196
    Abstract: The invention relates to a syringe, particularly an anesthetic syringe, having a longitudinally displaceable feeding piston disposed over a first hydraulic chamber, and a second hydraulic chamber, wherein the first and second hydraulic chambers are connected by means of a first control element for regulating resistance, wherein the first control element can be actuated by a switch element, wherein the first control element comprises a first check valve.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: November 5, 2013
    Assignee: SMJM Inject GmbH
    Inventors: Christian Stammen, Georg Wagner, Olivier Georg Reinertz, Roman Josef Jansen
  • Publication number: 20130165904
    Abstract: A control circuit that operably couples to a display and to a nerve block injection pressure sensor provides a display of both a current nerve block injection pressure value and a current nerve block injection pressure categorical range. That categorical range can comprise, for example, one of a plurality of available categorical ranges which may be visually differentiated from one another by color. The control circuit can also detect (and display) a maximum nerve block injection pressure value (and/or calculate a mean nerve block injection pressure value) as corresponds to a given monitored nerve block injection procedure. The control circuit can also detect negative nerve block injection pressure events and identify those events as aspiration events to facilitate keeping a count of aspiration events during the course of a given nerve block injection procedure. The control circuit can also help ensure observe of the proper patient laterality if desired.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 27, 2013
    Inventor: Admir Hadzic
  • Patent number: 8460256
    Abstract: A fluid collection system includes a disposable collection container and a disposable collection container receiving housing, the housing having a cavity and a suction source. The fluid collection container may include a flexible liner and a shelf for diverting fluid from the suction and to assist with a collapse of the liner during evacuation of the fluid from the liner. The collection container receiving housing may include a piston assembly having a main piston body and a scraper ring. The collection container receiving housing may include a piston stop feature. The system may include a partially hydrophobic filter and a flat surface suction tool.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: June 11, 2013
    Assignee: Allegiance Corporation
    Inventors: Thomas L. Michaels, Russ A. Johnson, Eric D. Hill
  • Patent number: 8308726
    Abstract: A system to minimize fluid turbulence inside a tissue cavity during endoscopic procedures. A body tissue cavity of a subject is distended by continuous flow irrigation using a solenoid operated pump on the inflow side and a positive displacement pump, such as a peristaltic pump, on the outflow side, such that the amplitude of the pressure pulsations created by the outflow positive displacement pump inside the said tissue cavity is substantially dampened to almost negligible levels. The present invention also provides a method for accurately determining the rate of fluid loss into the subject's body system during any endoscopic procedure without utilizing any deficit weight or fluid volume calculation, the same being accomplished by using two fluid flow rate sensors. The present invention also provides a system of creating and maintaining any desired pressure in a body tissue cavity for any desired cavity outflow rate.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: November 13, 2012
    Inventors: Atul Kumar, Alka Kumar
  • Patent number: 8291768
    Abstract: A syringe having an internal pressure gauge comprises a syringe barrel; a piston within the barrel; a spring coupled to the piston at a first position of the spring, the spring having a second portion that is movable in response to fluid pressure within a syringe cavity; and a pressure gauge having an indicator correlated to a plurality of positions of the second portion of the spring to indicate a pressure of a fluid. The spring can be a bellows. The fluid chamber can be in fluid communication with a cuff of an inflatable medical device, such as an endotracheal tube, such that the measured pressure comprises the fluid pressure within the cuff.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: October 23, 2012
    Assignees: Beth Israel Deaconess Medical Center, Massachusetts Institute of Technology
    Inventors: Joan E. Spiegel, Alexander H. Slocum, Adrienne Watral, Samuel Duffley
  • Patent number: 8262605
    Abstract: Described are devices and methods related to the needleless injection of fluid into tissue of the lower urinary tract, such as the urethra and prostate.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: September 11, 2012
    Assignee: AMS Research Corporation
    Inventors: Vincent G. Copa, Sidney F. Hauschild
  • Patent number: 8246579
    Abstract: The present invention provides a surgical system 10 for aspiration of a biological material comprising a source of irrigation fluid 24, a collection cassette 30, a pump 40 for creating a vacuum in the collection cassette 30, a handpiece 50 applied to a surgical area for infusing irrigation fluid and for aspirating a biological material, conduits 60 and 62 connecting the handpiece to each of the source of irrigation fluid and the collection cassette and means 70 for isolating the pump from the handpiece to prevent creation of vacuum within the conduit 62 and the collection cassette 30 after receiving a stop signal.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 21, 2012
    Assignee: Bausch & Lomb Incorporated
    Inventors: Laurence J. Cull, Mark Ian Lutwyche
  • Patent number: 8211057
    Abstract: A chemical liquid injector comprises liquid syringe 200 and a chemical liquid injector. Liquid syringe 200 has cylinder member 210, a piston member and RFID tag 230 put on an outer circumference of cylinder member 210. The chemical liquid injector has cylinder holding mechanism 120 for holding cylinder member 210, a piston driving mechanism for driving the piston member and an RFID reader. The RFID reader has reader antennas 132L, 132R placed opposite to a tag antenna so as to be able to receive data from RFID tag 230 with cylinder member 210 is appropriately held by the cylinder holding mechanism. The piston driving mechanism is permitted to operate only when the RFID reader receives data from RFID tag 230.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: July 3, 2012
    Assignee: Nemoto Kyorindo Co., Ltd.
    Inventors: Shigeru Nemoto, Masahiro Sakakibara
  • Patent number: 8202493
    Abstract: The present invention includes a harvesting and irrigation device, a method and a kit for the collection of viable fat cells and/or adipose tissue with decreased handing and improved yield and viability.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: June 19, 2012
    Assignee: Genesis Biosystems, Inc.
    Inventor: Brian Buss
  • Patent number: 8197443
    Abstract: A detection apparatus for, and a method of, detecting the location of the tip of a tubular element, in particular a needle, within a region, in particular one of the epidural space and the peritoneal cavity.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: June 12, 2012
    Assignee: Indigo Orb, Inc.
    Inventors: Satish Sundar, Swaminathan Balakrishnan, Albert Hartman
  • Patent number: 8137312
    Abstract: A detection apparatus for, and a method of, detecting the location of the tip of a tubular element, in particular a needle, within a region, in particular one of the epidural space and the peritoneal cavity.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: March 20, 2012
    Assignee: Indigo Orb, Inc.
    Inventors: Satish Sundar, Swaminathan Balakrishnan, Albert Hartman
  • Publication number: 20120022499
    Abstract: Exemplary embodiments provide wearable automatic injection devices for subcutaneously injecting a therapeutic agent into a patient's body at controlled rates, for example, in a single bolus. Exemplary embodiments provide methods for assembling wearable automatic injection devices for subcutaneously injecting a therapeutic agent into a patient's body at controlled rates. Exemplary embodiments provide methods for using wearable automatic injection devices for subcutaneously injecting a therapeutic agent into a patient's body at controlled rates.
    Type: Application
    Filed: April 21, 2011
    Publication date: January 26, 2012
    Inventors: Philip D. ANDERSON, Joseph F. JULIAN, Linas P. LAURUSONIS, Timothy PARMER, Travis YOCH, Samuel M. JANG, Sean CORRIGAN, Tomas MATUSAITIS, William FIENUP, Chris STRAHM
  • Publication number: 20110301538
    Abstract: The invention relates to a syringe, particularly an anesthetic syringe, having a longitudinally displaceable feeding piston disposed over a first hydraulic chamber, and a second hydraulic chamber, wherein the first and second hydraulic chambers are connected by means of a first control element for regulating resistance, wherein the first control element can be actuated by a switch element, wherein the first control element comprises a first check valve.
    Type: Application
    Filed: November 19, 2009
    Publication date: December 8, 2011
    Applicant: SMJM Inject GmbH
    Inventors: Christian Stammen, Georg Wagner, Olivier Georg Reinertz, Roman Josef Jansen
  • Patent number: 8062286
    Abstract: A system in accordance with embodiments of the present invention includes a cannula interconnected to a collection vessel by a flexible conduit. The collection vessel can comprise one or more syringe bodies. The syringe bodies are provided with tissue removed from a body using the cannula by a tissue transfer channel. As a result, multiple syringe bodies can be loaded with tissue, without requiring manual handling of that tissue. Alternatively or in addition, a collection bag can be provided for receiving tissue removed from a body using a cannula. The tissue collection bag can include a filter. A collection vessel comprising a collection bag can be used in combination with a collection vessel comprising one or more syringe bodies.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: November 22, 2011
    Inventor: Ronald D. Shippert
  • Patent number: 8034026
    Abstract: An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: October 11, 2011
    Assignee: Deka Products Limited Partnership
    Inventors: Kevin L. Grant, Brian D. Tracey
  • Patent number: 7981078
    Abstract: According to the present invention there is provided an inflation/deflation system for a dilatation balloon comprising a receptacle, a pressure member, a sensing system and a data processing and display unit. The receptacle is adapted to contain an inflation fluid to be introduced into the balloon during its inflation. The receptacle also has an inlet/outlet port adapted for connection to the dilatation balloon; The pressure member is adapted to be axially displaced within the receptacle to cause the fluid to exit the receptacle via the outlet port. The sensing system comprises a first sensor and a second sensor. The first sensor is associated with the pressure member to sense its axial displacement. The second sensor is associated with the interior of the receptacle to sense in a non-contact manner the pressure P of the inflation fluid within the receptacle, and to provide a corresponding data signal.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: July 19, 2011
    Assignee: Mego Afek AC Ltd.
    Inventor: Moshe Mandel
  • Patent number: 7967783
    Abstract: An automatic pump relay system includes controllers coupled to drivers for sequentially discharging fluid from a plurality of medication containers into a coupler having a reflux barrier from which fluid is administered to a patient. The internal fluid pressure of the coupler is determined by a pressure sensing device or devices that provide signals to the controllers that, based at least on the sensor signals, cause the drivers to operate in reverse and forward directions so as to rapidly decrease and raise the fluid pressure within the coupler during a relay from an empty syringe to a filled syringe, thereby avoiding bolus formation and an interruption in infusion therapy. Independently operable syringes pumps are contemplated to be connected in relay fashion to form a modular system. An associated method is also disclosed wherein a fluid administration pressure is stored for use as a reference during a syringe changeover.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: June 28, 2011
    Assignee: CareFusion 303, Inc.
    Inventor: Pierre Rebours
  • Patent number: 7955301
    Abstract: Injection shut off valve devices and methods are provided for limiting flow and pressure from a pharmaceutical composition on injection. In some embodiments, the injection shut off valve is coupled to a syringe and can be used to monitor and avoid maximum pressures that can cause damage on injection.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: June 7, 2011
    Assignee: Warsaw Orthopedic, Inc.
    Inventor: William F. McKay
  • Patent number: 7947014
    Abstract: A relief valve incorporated within a Luer connector regulates the amount of air pressure applied by a syringe to a balloon at the end of a catheter to prevent bursting of the balloon.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: May 24, 2011
    Inventor: Tai Kien
  • Publication number: 20110092828
    Abstract: The fluid delivery system includes a pressurizing device for delivering injection fluid under pressure, a low pressure fluid delivery system, and a pressure isolation mechanism. The pressure isolation mechanism includes a first lumen associated with the pressurizing device, a second lumen associated with the low pressure fluid delivery system, and a pressure isolation port. The first valve is in a normally open position permitting fluid communication between the first lumen and the second lumen and movable to a closed position when fluid pressure in the first lumen reaches a predetermined pressure level. The first valve isolates the pressure isolation port from the first lumen in the closed position. A second valve is associated with the second lumen and regulates fluid flow through the second lumen. The second valve may be a disk valve defining one or more passageways in the form of slits through the body of the disk valve.
    Type: Application
    Filed: December 22, 2010
    Publication date: April 21, 2011
    Inventors: Michael A. Spohn, John A. Haury, Anthony S. McCoppin, John F. Kalafut, Herbert M. Grubic, James A. Dedig
  • Patent number: 7905861
    Abstract: An injection system includes a fluid delivery system, a drive mechanism, a controller and a tubing set. The fluid delivery system includes a fluid container and a pumping mechanism having an inlet in fluid connection with the fluid container and an outlet. The tubing set is adapted to be placed in removable fluid connection with the outlet of the pumping mechanism and a patient. The drive mechanism is in operative connection with the pumping mechanism to pump fluid from the fluid container. First and second information stores, such as bar codes or RFID tags, are associated with the pumping mechanism and the tubing set, respectively. The controller is in operative connection with the drive mechanism and adapted to read the first information store and the second information store to at least partly control the operation of the drive mechanism based thereon.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: March 15, 2011
    Assignee: MEDRAD, Inc.
    Inventors: Edward J. Rhinehart, Dennis P. Hack, David M. Reilly, John F. Kalafut