Having Means For Varying, Regulating, Indicating, Or Limiting Injection Pressure Or Aspirating Suction Patents (Class 604/118)
  • Patent number: 8574186
    Abstract: To carry out a mucosa resection, a liquid is injected beneath a tissue which is then separated by means of mechanical or electrosurgical equipment. A device is provided that includes a facility for endoscopic water-jet surgery with a control device for regulating a pressure at which a water jet is discharged from a nozzle of the facility to obtain a predetermined amount of energy. An adjusting assembly is provided for setting the pressure to a first value and to a second value. The first value is so chosen that the water jet penetrates a mucosa in such a way that the mucosa is lifted from an underlying muscularis through formation of a fluid deposit. The second value is adjusted and different from the first value in such a way that the mucosa is sectionally cut through by the water jet.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: November 5, 2013
    Assignee: Erbe Elektromedizin GmbH
    Inventor: Klaus Fischer
  • Patent number: 8574195
    Abstract: Systems and methods for determining tissue contact and penetration depth are provided. In one aspect, the system includes a needle and a pressure measurement assembly. The needle, in one exemplary embodiment, includes a first end and a second end with at least one aperture located a predetermined distance from the first end. The fluid pressure measurement assembly is connected with a portion of the needle to measure pressure of fluid dispensed in the needle. The fluid pressure measurement assembly measures a first pressure of the fluid, a second pressure when the needle contacts tissue and a third pressure when the needle penetrates the tissue and the aperture becomes occluded.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: November 5, 2013
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventor: Dagmar Beyerlein
  • Publication number: 20130267845
    Abstract: A jetless intravenous catheter for the delivery of a fluid into a peripheral vein of a subject includes an elongated body having proximal and distal ends. The body includes a wall defining an internal fluid passageway configured to receive fluid flowing in a longitudinal direction from the proximal end at a first axial velocity and a tip aperture at the distal end configured to allow fluid to exit therethrough. The body comprises at least one flow reducing feature configured to create a laminar-turbulent transitional flow associated with a fluid flowing in the longitudinal direction at the first axial velocity and configured to reduce the flow velocity of fluid exiting the tip to a second axial velocity that is less than the first axial velocity.
    Type: Application
    Filed: January 21, 2011
    Publication date: October 10, 2013
    Inventors: Laurens E. Howle, Rendon Nelson, Eli Nichols, Sebastian T. Schinders, Courtney Coursey, Paul W. Weber
  • Patent number: 8523821
    Abstract: A device for transferring fluids between an internal structure in a living body and an exterior thereof comprises a housing including a pressure activated lumen extending to a distal end opening to a power injection lumen that extends to a distal port configured for connection to a fluid conduit extending to a target structure within the body and a pressure activated valve extending across the pressure activated lumen and controlling fluid flow therethrough, in combination with a proximal port coupled to the housing for movement between a first position in which a proximal end of the power injection lumen opens to the proximal port and a second position in which a proximal end of the pressure activated lumen opens to the proximal port.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: September 3, 2013
    Assignee: Navilyst Medical, Inc
    Inventor: Stephen C Miller
  • Patent number: 8523812
    Abstract: A surgical system that is able to sense the onset of an occlusion or other surgical event as well as when an occlusion breaks. To help avoid overheating of the tip, the system of the present invention predicts the temperature of the eye using irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system of the present invention monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: September 3, 2013
    Assignee: Alcon Research, Ltd.
    Inventors: Mikhail Boukhny, Raphael Gordon, Michael D. Morgan, Ann Yadlowsky
  • Patent number: 8512283
    Abstract: The present invention provides a system and a method for distending a body tissue cavity of a subject by continuous flow irrigation by using a positive displacement pump, such as a pneumatic 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 a the two 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: August 26, 2005
    Date of Patent: August 20, 2013
    Inventors: Atul Kumar, Alka Kumar
  • Patent number: 8506552
    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: May 18, 2011
    Date of Patent: August 13, 2013
    Assignee: CareFusion 303, Inc.
    Inventor: Pierre Rebours
  • Patent number: 8500705
    Abstract: The present invention relates to the analysis apparatus capable of collecting the body fluid such as urine or blood, for embodiment urination and measuring or calculating the specific constituent from the collected body urine, and the apparatus for collecting body fluid capable of using by connecting to the analysis apparatus and its related article, in which the apparatus for collecting and analyzing for the body fluid of a patient consists of the body fluid collecting part and the collecting part case, the apparatus for collecting body fluid consists of the body fluid collecting part, the total tube and adapter, the collecting part is constructed with the absorbing tube, the sensor tube, the cleansing tube and the passage and is attachable/detachable connected to the collecting part, a diaper and pants exclusive for a patient are provided as the related article such that it is convenient to possess and has effects in the urination having no relations to the intention of a patient or in case of unable to use
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: August 6, 2013
    Assignee: Kyungin Metal Industry Co., Ltd.
    Inventor: Kyoung Hun Kim
  • Publication number: 20130184675
    Abstract: The present invention discloses an intravenous infusion monitoring device for monitoring the infusion dripping rate. This device is attached to an infusion tube above the dripping chamber, including two polar plates forming a capacitor, a capacitance measurement unit electrically connected to the capacitor, a micro control unit (MCU) configured to collect data from the capacitance measure unit and analysis and display the infusion dripping rate. A method for monitoring infusion rate includes setting the infusion solution surface to a specific height in the dripping chamber so that the infusion solution in the tube is conducted and have a pulse change of the capacitance at the moment when a droplet drips down, determining the cycle of the pulse corresponding to the infusion rate and displaying the dripping rate by LCD screen, and alarming when the infusion irregularities occurs such as too fast, too slow or fully stop.
    Type: Application
    Filed: June 22, 2012
    Publication date: July 18, 2013
    Inventor: Yimin Li
  • Patent number: 8465467
    Abstract: A dual pump aspiration system having both a vacuum level control loop and a flow rate control loop. The system can be operated either as a vacuum priority system or a flow rate priority system.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: June 18, 2013
    Assignee: Novartis AG
    Inventor: Shawn X. Gao
  • Patent number: 8449510
    Abstract: A medical waste fluid collection and disposal system includes a medical waste fluid collection cart including first and second fluid collection canisters. A valve assembly selectively communicates with the canisters and a valve drive system controls the valve assembly. A liquid level sensor is positioned within each of the canisters. A cart processor communicates with the liquid level sensors and the valve drive system. A cart drain line communicates with the valve assembly and a receptacle, a cart flushing line communicates with the valve assembly and the receptacle and a cart data line and a cart power line communicate with the cart processor and the cart receptacle. A station includes a drain pump that communicates with a drainage system and a station drain line, a flushing pump that communicates with a source of washing liquid and a station flushing line and a station processor in communication with the drain and flushing pumps. A station data line communicates with the station processor.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: May 28, 2013
    Assignee: Dornoch Medical Systems, Inc.
    Inventors: Anthony Martini, Lawrence Guerra
  • Patent number: 8444601
    Abstract: A suction flow regulator including an adapter and a grommet fixed inside the adapter for permitting air to access a vacuum flow path according to a vacuum level. The grommet is fixed inside an adapter by a securing mechanism (for example, a compression plate). The grommet may be used with an additional elastomeric element (for example, a smaller grommet) that provides flexibility during vacuum exposure and deflects to expose holes in the grommet under vacuum. Alternatively, the grommet may be a single unit grommet with a cantilever configuration.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: May 21, 2013
    Assignee: Arthrex, Inc.
    Inventor: David P. Gallo, Sr.
  • Patent number: 8439874
    Abstract: A flow control system that includes a vacuum device configured to control the level of vacuum applied for urging the flow of aspirated fluid from a surgical site, and a vacuum sensor configured to communicate a signal representative of the sensed vacuum level. A flow sensor control is configured to generate a signal indicative of the rate of aspirated fluid flow. A flow controller monitors the vacuum sensor and the flow measurement device, and communicates a requested vacuum level to the vacuum device for establishing a desired vacuum level. The flow controller employs a first feed back loop that compares the actual sensed vacuum level with the requested vacuum level and adjusts the requested vacuum level as needed. The flow controller implements a second feedback loop that compares the actual flow rate of aspirated fluid with a desired flow rate, and adjusts the requested vacuum level to achieve the desired flow rate.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: May 14, 2013
    Assignee: Bausch & Lomb Incorporated
    Inventor: David Hertweck
  • Patent number: 8430841
    Abstract: A phacoemulsification system for operating a surgical handpiece having a handpiece; an irrigation fluid source for supplying irrigation fluid to the eye; an aspiration source coupled to the handpiece in order to aspirate the irrigation fluid from the eye through the handpiece; and a controller for controlling a vacuum in the handpiece, the controller comprising: a sensor for sensing the vacuum in the handpiece; an occlusion parameter, the occlusion parameter being a vacuum level corresponding to an occlusion of the handpiece or a flow rate corresponding to an occlusion of the handpiece; a maximum allowable vacuum level in the handpiece, the maximum allowable vacuum level having at least a first predetermined level; and a trigger value that is set based in part on the occlusion parameter.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: April 30, 2013
    Assignee: Abbott Medical Optics Inc.
    Inventors: Michael J Claus, Wayne S Wong, Carina R Reisin, Stephen H Jang
  • Patent number: 8425473
    Abstract: The invention provides surgical devices that provide access to the sub-retinal space using delicate traction to hold the sensory retina to create and maintain a patent sub-retinal space of sufficient size to introduce and perform treatments on the eye. Such treatments may include the introduction of illumination or imaging agents or tools, surgical tools, the infusion of pharmaceutical or biological agents, and the placement of grafts, transplants or implants and the closure of the site through the delivery of a sealant.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: April 23, 2013
    Assignee: iScience Interventional Corporation
    Inventors: Friedrich Ho, Stanley R. Conston, Ronald K. Yamamoto
  • Patent number: 8425452
    Abstract: A controller for a phacoemulsification system having a handpiece; an irrigation fluid source configured to supply an irrigation fluid to the eye; an aspiration source configured to aspirate the irrigation fluid from the eye through the handpiece; and a controller comprising a duration timer configured to provide a duration of an occlusion, the controller configured to: sense a value of an occlusion indicating parameter corresponding to an occlusion of the handpiece; measure a time since the occlusion of the handpiece; and control the aspiration source to the handpiece based at least in part on the measured time since the occlusion. The occlusion indicating parameter may be a vacuum level, an irrigation flow rate, and/or an aspiration flow rate.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: April 23, 2013
    Assignee: Abbott Medical Optics Inc.
    Inventors: Michael J Claus, Wayne S Wong, Carina Reisin, Stephen H Jang
  • Patent number: 8414522
    Abstract: A method of dispensing fluid includes three processes. A first one of these processes includes pumping fluid into a resilient variable-volume dispensing chamber. The dispensing chamber is in series with a normally present finite fluid impedance and an output. The impedance is sufficient so as to cause expansion of the dispensing chamber as it receives pumped fluid even while some fluid flows through the output. Another one of these processes includes repeatedly measuring a parameter related to volume of the dispensing chamber over time. A third one of these processes includes controlling the pumping of fluid based on repeated measurements of the parameter to produce a desired fluid flow through the output. A corresponding system for dispensing fluid implements these processes.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: April 9, 2013
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Russell H. Beavis, Derek G. Kane, John M. Kerwin, Larry B. Gray
  • Patent number: 8403884
    Abstract: An ACS therapy system for continuously monitoring Intra-Abdominal Pressure (IAP) and preventing the onset of ACS. The automated ACS therapy system includes a urine withdrawal device, an IAP regulation circuit, an IAP monitor connected to the urine withdrawal device to supply an IAP value to the IAP regulation circuit, and an abdominal fluid removal device. The abdominal fluid removal device may be connected to an active suction device, which withdraws fluid from the abdominal cavity through the abdominal fluid removal device when activated by the IAP regulation circuit. Based on the IAP value, the IAP regulation circuit may send a control signal that controls the active suction device to turn on and drain fluid from the abdominal cavity. When the IAP value reaches certain levels, the IAP regulation circuit may cause the active suction device to be turned off.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: March 26, 2013
    Assignee: C. R. Bard, Inc.
    Inventor: Vasu Nishtala
  • Patent number: 8398577
    Abstract: A device for removing fluid from a first bodily cavity and for directing that fluid into a second bodily cavity while avoiding risks of infection and, in one embodiment, excessive dehydration of the first bodily cavity. The device includes an uptake tube having a proximal end in fluid communication with the first bodily cavity and a distal end in fluid communication with a pump, and an outflow tube having a proximal end in fluid communication with the pump and a distal end in fluid communication with the second bodily cavity. The distal end of the uptake tube may be coupled to a reservoir configured to expand upon ingression of fluid into the reservoir and to contract upon removal of fluid due to a negative pressure provided by the pump.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 19, 2013
    Assignee: Sequana Medical AG
    Inventor: Daniel R. Burnett
  • Patent number: 8394060
    Abstract: A reservoir unit is provided comprising a housing in which a reservoir with a transparent portion is arranged, the housing comprising a window allowing a portion of the reservoir to be inspected. The reservoir unit is adapted to be moved from a first “cold” condition to a second “warm” condition with no visible water condensing on the interior surface of the window portion. Further, the vent is adapted to provide pressure equalization between the interior of the housing and the exterior. In this way it is possible to perform visual inspection of the reservoir at all times without being confused by dew or condensed water drops, e.g. when a prefilled reservoir unit containing a drug which requires storage at a given low temperature, as is the case for insulin-containing drugs, is taken out in ambient temperature.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: March 12, 2013
    Assignee: Novo Nordisk A/S
    Inventors: Karsten Kallesøe Nielsen, Lars Aagaard
  • Patent number: 8394321
    Abstract: In an infusion circuit (1), a peristaltic pump (7) displaced the infusion fluid along a line (3), sourcing it from a batch container (2). When a weight sensor (5) detects an emptying of the batch container (2), the pump is halted. If on stopping the pump the pressure measured by a sensor (6) operating in an expansion chamber (4) does not drop in excess of a predetermined threshold with respect to a non-empty container (2), a non-secure situation is signalled, due to an excessive quantity of air in the expansion chamber.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: March 12, 2013
    Assignee: Gambro Lundia AB
    Inventors: Giuseppe Franzoni, Luca Caleffi, Ranko Sakota
  • Patent number: 8382702
    Abstract: Fluid is pressurized and supplied to a fluid chamber with a fluid pressurizing and supplying unit. The pressurized fluid within the fluid chamber is ejected through an injection nozzle by reduction of the volume of the fluid chamber caused by applying a driving voltage to a volume varying unit. In applying the driving voltage to the volume varying unit, the effect imposed on fluid injection by pressure fluctuations of the fluid pressurized and supplied to the fluid chamber is compensated by changing the voltage waveform of the driving voltage. When the pressure of the supply flow amount is decreased to a pressure lower than a predetermined pressure, the time intervals of the driving waveform are corrected. The maneuverability of a fluid injection device does not deteriorate even when the pressure of the fluid pressurized and supplied to the fluid chamber fluctuates.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: February 26, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Kazuaki Uchida, Hideki Kojima, Atsuya Hirabayashi
  • Patent number: 8372038
    Abstract: An apparatus and method to suppress vacuum surges in a surgical aspiration system is disclosed and claimed. A vacuum surge suppressor includes a first fluid path for coupling to a surgical instrument, and a filter attached to the first fluid path. A flow restrictor is coupled to the filter with the filter disposed upstream of the flow restrictor. The vacuum surge suppressor also includes a second fluid path for coupling to a vacuum pump. The second fluid path is connected to the flow restrictor and disposed downstream of the flow restrictor. The second fluid path defines a path internal pressure. A third fluid path is coupled to the filter and is connected to the second fluid path, bypassing the flow restrictor. A valve in the third fluid path obstructs flow in the third fluid path in response to the path internal pressure.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: February 12, 2013
    Assignee: Dana, LLC
    Inventors: Alex Urich, Armand Maaskamp
  • Patent number: 8366666
    Abstract: Various embodiments of the present invention are directed to equalizing pressure in a reservoir containing fluidic media, possibly due to imperfect installation of the reservoir or an external influence such as an altitude or a temperature change. In various embodiments, fluidic media may be expelled from the reservoir through a needle and contained in an interior volume of a pierceable member before the needle pierces the pierceable member to establish a flow path to a user. In other embodiments, fluidic media may be expelled through a port of the reservoir into a chamber. In further embodiments, fluidic media may be expelled through a channel in a plunger head and out a passage in the reservoir when the channel and passage are aligned. In other embodiments, fluidic media may be expelled through a valve, and the valve may be pierceable by a needle to establish a flow path to the user.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: February 5, 2013
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Colin A. Chong, Julian D. Kavazov, Eric M. Lorenzen
  • Patent number: 8361054
    Abstract: The present embodiments provide apparatus and methods suitable for containing and delivering a therapeutic agent to a target site. The apparatus generally comprises at least one container for holding a therapeutic agent, and a pressure source for facilitating delivery of the therapeutic agent. In one embodiment, the pressure source may be placed in selective fluid communication with a proximal region of the container and fluid from the pressure source may flow through at least a portion of the container to urge the therapeutic agent through the container towards the target site. In an alternative embodiment, the pressure source may be selectively in fluid communication with either a first hollow tube and the container so that therapeutic agent is urged into a catheter, or with a second hollow tube and a catheter so that a fluid from the pressure source bypasses the container and enters the catheter.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: January 29, 2013
    Assignee: Cook Medical Technologies LLC
    Inventors: Richard W. Ducharme, David E. Sugg
  • Patent number: 8348896
    Abstract: A patency check protocol (150) for evaluating a patency check injection (156) is disclosed. The protocol (150) incorporates a pressure standard (152) (e.g., a pressure threshold; a target pressure curve). A pressure associated with the patency check injection is monitored (160) and compared against this pressure standard (164). If a first condition is identified (166) (e.g., if the pressure threshold is reached; if the monitored pressure deviates from the target pressure curve by more than a certain predetermined amount), one or more actions may be undertaken (168) (e.g., one or more notifications or alerts may be issued; the flow rate may be reduced for the patency check injection; the patency check injection may be suspended/terminated).
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: January 8, 2013
    Assignee: Mallinckrodt LLC
    Inventor: Gary S. Wagner
  • Patent number: 8346399
    Abstract: An apparatus for delivering a bolus of a medical agent to a patient. The apparatus comprises a pump mechanism, a data input device, and a processor in data communication with the keypad and arranged to control the pump mechanism. The processor is programmed to receive data specifying a bolus amount through the data port, receive data regarding duration through the data port, receive a percentage through the data port, the percentage defining a portion of the bolus amount to deliver immediately upon executing a deliver command and a remainder of the bolus amount to deliver over the duration upon executing a deliver command, and execute the deliver command thereby controlling the pump mechanism to deliver the bolus. Also a method of temporarily adjusting the delivery rate of an infusion pump. The infusion pump is programmed to deliver a basal rate.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: January 1, 2013
    Assignee: Tandem Diabetes Care, Inc.
    Inventor: Michael L. Blomquist
  • 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: 8303553
    Abstract: The invention relates to a flow limiter for a fluid flowing in an aspiration branch of a surgical system, which fluid is a surgical fluid and has emulsified particles in a surgical intervention, with a limiter element that comprises at least one flow channel arrangement with at least one main channel and at least one subsidiary channel that opens into the main channel at an angle of greater than or equal to 90°. The invention also relates to a surgical system, in particular an ophthalmic microsurgical system for lens surgery.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: November 6, 2012
    Assignee: Carl Zeiss Meditec AG
    Inventors: Christoph Kuebler, Martin Kraus, Michael Eichler, Tobias Maier
  • Publication number: 20120277675
    Abstract: A device for nasal lavage is described. The device ejects a gentle flow of fluid under pressure. The fluid stream provides a high quantity of fluid at low pressure. The low pressure fluid stream is more comfortable for a user than a high pressure fluid stream that are delivered by various types of pressurized cans of solution.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 1, 2012
    Inventor: Ketan C. Mehta
  • Patent number: 8292857
    Abstract: A medical waste fluid collection and disposal system includes a medical waste fluid collection cart including first and second fluid collection canisters. A valve assembly selectively communicates with the canisters and a valve drive system controls the valve assembly. A liquid level sensor is positioned within each of the canisters. A cart processor communicates with the liquid level sensors and the valve drive system. A cart drain line communicates with the valve assembly and a receptacle, a cart flushing line communicates with the valve assembly and the receptacle and a cart data line and a cart power line communicate with the cart processor and the cart receptacle. A station includes a drain pump that communicates with a drainage system and a station drain line, a flushing pump that communicates with a source of washing liquid and a station flushing line and a station processor in communication with the drain and flushing pumps. A station data line communicates with the station processor.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: October 23, 2012
    Assignee: Dornoch Medical Systems, Inc.
    Inventors: Anthony Martini, Lawrence Guerra
  • Patent number: 8267908
    Abstract: An apparatus, system, and method for storing liquid from a tissue site are presented. The apparatus includes a delivery tube that may have at least one lumen. The delivery tube may be operable to transmit reduced pressure to the tissue site and to receive liquid from the tissue site. The apparatus may also include an absorbent material disposed in the at least one lumen. The absorbent material may be operable to absorb the liquid from the tissue site. The delivery tube may be formed with a number of recesses.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: September 18, 2012
    Assignee: KCI Licensing, Inc.
    Inventor: Richard Daniel John Coulthard
  • Patent number: 8267891
    Abstract: A phacoemulsification irrigation sleeve includes an elongated, resilient, tubular body section configured to surround a portion of a shaft of a phacoemulsification needle, the tubular body section having a distal end and a proximal end, and an inner surface and an outer surface. An enlarged section formed on the proximal end of the tubular body portion surrounds a hub of the phacoemulsification needle and connects the irrigation sleeve to a phacoemulsification handpiece. The irrigation sleeve further comprises at least one slitted irrigation port formed adjacent to the distal end of the body section and configured to splay in response to a drop in pressure between the inner surface and the outer surface.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: September 18, 2012
    Assignee: Alcon Research, Ltd.
    Inventors: Ramon Dimalanta, Grace Liao
  • Patent number: 8257342
    Abstract: A dual lumen gastrointestinal feeding and aspirating device includes an aspiration channel which carries a feeding channel. The aspiration channel has a distal opening with a larger size than that of the feeding channel so it can operate more effectively as a stent and accommodate larger sized instruments. The distal end of the aspiration channel is repeatably moveable between open and closed conditions in response to the extension and retraction, respectively, of the instrument therethrough.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: September 4, 2012
    Inventor: Kurt W. Grathwohl
  • Patent number: 8257306
    Abstract: A dual lumen gastrointestinal feeding and aspirating device includes an aspiration channel which carries a feeding channel. The aspiration channel has a distal opening with a larger size than that of the feeding channel so it can operate more effectively as a stent and accommodate larger sized instruments. The distal end of the aspiration channel is repeatably moveable between open and closed conditions in response to the extension and retraction, respectively, of the instrument therethrough.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: September 4, 2012
    Inventor: Kurt W. Grathwohl
  • 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: 8246580
    Abstract: A microsurgical system capable of controlling aspiration and detecting an occlusion via monitoring a change in either suction flow rate or suction impedance.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: August 21, 2012
    Assignee: Novartis AG
    Inventors: Mark A. Hopkins, John C. Huculak, Kirk W. Todd, Roger Thomas, Shawn X. Gao, Nader Nazarifar
  • Patent number: 8241242
    Abstract: A device for achieving high vacuum stability during phacoemulsification surgery includes a main aspiration line connected to a vacuum source which enables a fluid flow from a phacoemulsification handpiece tip to a drainage reservoir. A first tubing segment is provided in the main aspiration line along with a second tubing segment generally parallel to the first tubing section and a valve disposed in the second tubing segment regulates fluid flow through the second tubing segment in order to limit vacuum surge in the main aspiration line upon clearing of an occlusion in the phacoemulsification handpiece tip.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: August 14, 2012
    Assignee: Abbott Medical Optics Inc.
    Inventor: Thomas B. Sutton
  • Patent number: 8221366
    Abstract: A system and method are disclosed for automatically limiting the drainage of a bodily fluid such as cerebrospinal fluid (CSF) from a patient into a collection chamber. The collection chamber includes a vent having an hydrophobic filter for the passage of air to facilitate the movement of CSF yet to maintain a closed system. The system includes a buoyant float hingedly connected with the top of the collection chamber in one embodiment. When fluid rises in the collection chamber to a predetermined volume, buoyant force raises the float and causes a seal plug mounted on top of the float to seal one of an inflow port or a vent port. The float is limited to pivoting movement in one plane and to a certain angle within that plane. The system and method avoid overdrainage of CSF from the patient and overfilling of the collection chamber.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: July 17, 2012
    Assignee: Integra LifeSciences Corporation
    Inventors: Brian Hoffman, Michael McDermott, William R. Chang, Eric Scott Clasen
  • Publication number: 20120136301
    Abstract: A device for transferring fluids between an internal structure in a living body and an exterior thereof comprises a housing including a pressure activated lumen extending to a distal end opening to a power injection lumen that extends to a distal port configured for connection to a fluid conduit extending to a target structure within the body and a pressure activated valve extending across the pressure activated lumen and controlling fluid flow therethrough, in combination with a proximal port coupled to the housing for movement between a first position in which a proximal end of the power injection lumen opens to the proximal port and a second position in which a proximal end of the pressure activated lumen opens to the proximal port.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 31, 2012
    Applicant: Navilyst Medical, Inc.
    Inventor: Stephen C. Miller
  • Patent number: 8182445
    Abstract: Programmable infusion systems and method for controlled infusion of diagnostic or therapeutic substances (e.g., drugs, biologics, fluids, cell preparations, etc.) into the bodies of human or animal subjects.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: May 22, 2012
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Ahmad-Maher Moubayed, Oscar E. Hyman, David N. White, Larry L. Wilson, John W. Stevenson, Jay G. Moubayed, Linda Thomas
  • Publication number: 20120116296
    Abstract: The present embodiments provide systems and methods suitable for delivering a therapeutic agent to a target site. The systems generally comprise a container for holding a therapeutic agent, and a pressure source configured to be placed in selective fluid communication with at least a portion of a reservoir of the container. In one embodiment, fluid from the pressure source is directed through a first region of the container in a direction towards a second region of the container. The fluid then is at least partially redirected to urge the therapeutic agent in a direction from the second region of the container towards the first region of the container and subsequently towards the target site. In alternative embodiments, the fluid from the pressure source may be directed through the second region of the container in a direction towards the first region of the container.
    Type: Application
    Filed: January 17, 2012
    Publication date: May 10, 2012
    Inventors: Richard W. Ducharme, David E. Sugg, Eugene Skelton, Martin Bruggemann, Lyndsey Bryce
  • Patent number: 8118777
    Abstract: The present embodiments provide systems and methods suitable for delivering a therapeutic agent to a target site. The systems generally comprise a container for holding a therapeutic agent, and a pressure source configured to be placed in selective fluid communication with at least a portion of a reservoir of the container. In one embodiment, fluid from the pressure source is directed through a first region of the container in a direction towards a second region of the container. The fluid then is at least partially redirected to urge the therapeutic agent in a direction from the second region of the container towards the first region of the container and subsequently towards the target site. In alternative embodiments, the fluid from the pressure source may be directed through the second region of the container in a direction towards the first region of the container.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: February 21, 2012
    Assignee: Cook Medical Technologies LLC
    Inventors: Richard W. Ducharme, David E. Sugg, Eugene Skelton, Martin Bruggemann, Lyndsey Bryce
  • Patent number: 8092426
    Abstract: A regional anesthesia system and a cart for aiding in the placement of a regional anesthesia block without the need of ancillary assistance. The invention includes equipment for use in the performance of a regional anesthesia block which is carried on a cart for transporting and providing a stable foundation for the equipment. The equipment includes a nerve localization means such as ultrasound or a peripheral nerve stimulator for locating a target nerve of a patient, a position assist arm for maintaining the position of the localization means over the target nerve while the operator inserts an anesthetic needle over the target nerve, and an anesthetic infusion device for infusing or aspirating through the anesthesia needle. The infusion device includes an infusion pump controlled by a foot pedal. The system may be easily transported to a patient requiring a regional anesthesia block, and allows the regional anesthesia block to be performed with minimal ancillary assistance.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: January 10, 2012
    Inventor: James M. Molnar
  • Patent number: 8092427
    Abstract: An ophthalmic aspiration system that can be used with a hand piece and a vacuum source, is disclosed and claimed. The aspiration system includes a first tube that is connected to the hand piece and a second tube that is connected to a vacuum source. A filter assembly is connected to both tubes to filter out particles aspirated into the system. The second tube has an inner diameter smaller than an inner diameter of the first tube. The smaller second tube limits the amount of flow through the system to minimize vacuum surges caused by occlusions.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: January 10, 2012
    Assignee: Data, LLC
    Inventors: Alex Urich, Armand Maaskamp
  • Patent number: 8083721
    Abstract: A device for transferring fluids between an internal structure in a living body and an exterior thereof, comprises a housing including a pressure activated lumen extending to a distal end opening to a power injection lumen that extends to a distal port configured for connection to a fluid conduit extending to a target structure within the body and a pressure activated valve extending across the pressure activated lumen and controlling fluid flow therethrough, the pressure activated valve opening to permit fluid flow therethrough into the power injection lumen when a fluid pressure differential thereacross is at least a first predetermined threshold level and remaining sealed when the fluid pressure differential thereacross is less than the first threshold level in combination with a proximal port coupled to the housing for movement between a first position in which a proximal end of the power injection lumen opens to the proximal port and a second position in which a proximal end of the pressure activated lum
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: December 27, 2011
    Assignee: Navilyst Medical, Inc.
    Inventor: Stephen C. Miller
  • Patent number: 8057433
    Abstract: A pharmaceutical delivery system that releases an active agent in a controlled manner for an extended period in the vaginal cavity to treat or cure ailments associated with the vaginal cavity or proximal areas. The delivery system includes an applicator which is composed of a high internal phase emulsion, allowing the delivery system to adhere to the mueosal surfaces of the body, primarily the lining of vaginal cavity. The delivery system can maintain the high internal phase emulsion at a temperature of 86° F. for at least one month, without decomposition or instability of the emulsion.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: November 15, 2011
    Assignee: DrugTech Corporation
    Inventors: Robert C. Cuca, Thomas C. Riley, R. Saul Levinson
  • Patent number: 8052644
    Abstract: This invention relates to a surgical irrigation system having an improved reusable, motorized console and a separable/attachable irrigation pump cassette, including, at least in one embodiment improved mechanical and electrical inner-connection structure therebetween, and at least in one embodiment improved pump priming structure and methods.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: November 8, 2011
    Assignee: Stryker Corporation
    Inventors: Todd J. Radgowski, Reid S. Cover, Brannon P. Wells, Simon S. Hui
  • Publication number: 20110270181
    Abstract: A device for delivering material to multiple surgical target locations includes a pressure reservoir selectably coupled to two or more outlets. Coupling the pressure reservoir to a given one of the outlets and pressurizing the pressure reservoir causes flowable material (e.g., bone filler material) to be dispensed from that outlet. A diverter for selectably coupling the pressure reservoir one of the outlets can be configured to trigger a pressure release valve for the pressure reservoir upon switching, thereby preventing unexpected or uncontrolled material delivery from the new outlet in response to sudden high pressure exposure.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventors: Brian W. Donovan, Bryan A. Click
  • Patent number: 8038648
    Abstract: An injection device (100) for injecting a substance into an organism (1) is described, comprising a guide device (10) with a lumen (11) in which an injection tool (21) is arranged in a displaceable manner, a displacement device (20) to which the injection tool (21) is connected, and a holder device (30) that forms a support for the guide and displacement devices (10, 20), said guide and displacement devices (10, 20) being displaceably arranged on the holder device (30). A method for injecting a substance into an organism (1) is also described.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: October 18, 2011
    Assignee: Innovacell Biotechnologie GmbH
    Inventor: Rainer Marksteiner