With Antisiphon Means Patents (Class 604/10)
  • Patent number: 10279154
    Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 7, 2019
    Assignee: CEREVASC, LLC
    Inventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
  • Patent number: 10231871
    Abstract: Drainage of body fluid from an area of undesirably high pressure can be accomplished by interconnecting an artificial non-blood fluid conduit with the vascular system. For example, an artificial non-blood fluid conduit can be inserted into the eye to fluidly interconnect the anterior chamber with a location of lower pressure. The conduit can have a growth factor for stimulating growth of new blood vessels in the location of lower pressure to connect the new blood vessels with the non-blood fluid conduit.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: March 19, 2019
    Assignee: Orasis Medical, Inc.
    Inventor: Richard A. Hill
  • Patent number: 10100506
    Abstract: A central integrated nursing machine includes a main unit and a plurality of working heads, wherein the main unit is provided with a sewage suction device, a water supply device, a main unit processor and a main unit communication module, the sewage suction device is provided with a sewage discharging pipe connected with a sewer, the water supply device is provided with a water taking pipe connected with a tap water source, and the main unit processor is connected with the sewage suction device, the water supply device and the main unit communication module through circuits, respectively; and a plurality of working heads are connected with the sewage suction device and the water supply device on the main unit through pipelines, respectively, and the plurality of working heads are connected with the main unit communication module on the main unit through data transmission interfaces, respectively.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: October 16, 2018
    Assignee: SUZHOU ALTON ELECTRICAL & MECHANICAL INDUSTRY CO., LTD.
    Inventors: Shuhua Sang, Weidong Lu, Qiang Song
  • Patent number: 10058686
    Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: August 28, 2018
    Assignee: CEREVASC, LLC
    Inventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
  • Patent number: 9915364
    Abstract: A drain valve has a housing defining a drain conduit for the passage of fluids to be drained, the drain conduit having a first rim defining an inlet to the drain conduit opposite a second rim defining an outlet from the drain conduit. One or more non-return valves are within the drain conduit between the first rim and the second rim and have a closed configuration and an open configuration adapted to allow fluids to flow through the outlet of the drain conduit. A vent conduit extends within the drain conduit and comprises internally a lower valve seat, an upper valve seat and a bypass valve positioned between the lower valve seat and the upper valve seat. The bypass valve is adapted to allow gas to bypass the one or more non-return valves and escape to atmosphere when the gas reaches a predetermined pressure.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: March 13, 2018
    Assignee: NWS Europa GmbH
    Inventor: Giovanni Fima
  • Patent number: 9861525
    Abstract: Embodiments of method of manufacturing an implantable pump, including providing an upper layer comprising a dome structure for housing a drug chamber and a cannula in fluid communication with the drug chamber, providing a middle deflection layer adjacent the drug chamber, providing a bottom layer comprising electrolysis electrodes, and bonding the upper layer, middle deflection layer, and bottom layer to form the pump.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 9, 2018
    Assignee: MINIPUMPS, LLC
    Inventors: Changlin Pang, Fukang Jiang, Jason Shih, Sean Caffey, Mark S. Humayun, Yu-Chong Tai
  • Patent number: 9724501
    Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: August 8, 2017
    Assignee: CEREVASC, LLC
    Inventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
  • Patent number: 9662479
    Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: May 30, 2017
    Assignee: CereVasc, LLC
    Inventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
  • Patent number: 9655780
    Abstract: Drainage of body fluid from an area of undesirably high pressure can be accomplished by interconnecting an artificial non-blood fluid conduit with the vascular system. For example, an artificial non-blood fluid conduit can be inserted into the eye to fluidly interconnect the anterior chamber with a location of lower pressure. The conduit can have a growth factor for stimulating growth of new blood vessels in the location of lower pressure to connect the new blood vessels with the non-blood fluid conduit.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: May 23, 2017
    Assignee: Orange County Glaucoma, PC
    Inventor: Richard A. Hill
  • Patent number: 9545505
    Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: January 17, 2017
    Assignee: CEREVASC, LLC
    Inventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
  • Patent number: 9387311
    Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: July 12, 2016
    Assignee: CEREVASC, LLC
    Inventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
  • Patent number: 9205235
    Abstract: A portable system for subatmospheric pressure therapy in connection with healing a surgical wound includes a wound dressing dimensioned for positioning relative to a wound bed and a collection canister in fluid communication with the wound dressing. The canister includes a first vacuum chamber for drawing a vacuum and a second fluid chamber for collecting fluids removed from the wound dressing under the vacuum. The canister further includes a hydrophobic membrane separating the first and second chambers. The hydrophobic membrane is dimensioned to span a major portion of the cross-sectional area of the canister. The hydrophobic membrane may be dimensioned to substantially span an internal dimension of the collection canister. The hydrophobic membrane may include one or more outwardly extending lobes. The hydrophobic membrane may be releasably mountable to the canister, and, may be supported within a divider separating the first vacuum chamber and the second fluid chamber.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: December 8, 2015
    Assignee: Smith & Nephew, Inc.
    Inventor: Joel D. Wiesner
  • Patent number: 9056181
    Abstract: An improved shunt valve for the control of hydrocephalus provides for physiological atmospherically-referenced siphon control that is not adversely affected by overlying tissue. The valve includes one or more porous outer anti-fouling membranes to protect the flow control membranes from external mechanical tissue pressure, while permitting free movement of the flow control moveable membranes and permitting positive inlet pressure to regulate flow through the improved fluid shunt valve of the invention. The porous membranes are configured to prevent tissue ingrowth into the membranes pores while allowing adequate fluid flow across so as not to inhibit movement of the movable membrane.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: June 16, 2015
    Inventor: David A. Watson
  • Patent number: 8951221
    Abstract: The invention relates to a method and device for the treatment of glaucoma, though insertion of an implant into the lumen of the Schlemm's canal to realize proper drainage of the aqueous humor, which implant is brought into its position in the Schlemm's canal by means of a catheter having a distal and a proximate portion and provided with a number of pores through which a gaseous or fluid medium which comes from a pressure source can emerge during insertion of the catheter carrying the implant into the Schlemm's canal, and while the catheter is being inserted into the Schlemm's canal the gaseous or fluid medium is released under pressure thereby expanding the Schlemm's canal and the implant and upon releasing the implant at its determined location, the catheter can be withdrawn from the Schlemm's canal.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: February 10, 2015
    Assignee: Grieshaber Ophthalmic Research Foundation
    Inventors: Robert Christopher Stegmann, Matthias Christian Grieshaber, Hans Rudolf Grieshaber
  • Patent number: 8945038
    Abstract: A surgical technique and device wherein an indwelling tube is placed in the eye of a patient having glaucoma. The tube diverts aqueous humor from the anterior chamber to the suprachoroidal space from which it is removed by blood flowing in the choroidal and uveal tissues. This decreases the intraocular pressure.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: February 3, 2015
    Assignee: Transcend Medical, Inc.
    Inventor: Michael Yablonski
  • Patent number: 8876744
    Abstract: A system for draining excess cerebrospinal fluid (CSF) from the head of a subject includes a drainage shunt and a valve assembly that selectively permits the shunt to drain CSF. The valve assembly also compensates for multiple factors that can affect the subject's intracranial pressure (ICP) and compliance, and could otherwise lead to CSF over-drainage or other undesirable conditions.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: November 4, 2014
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David Ambrose Hsu, Bermans J Iskandar, Murielle Aline Hsu
  • Patent number: 8840578
    Abstract: An IOP control device for implantation in an eye of a patient is disclosed. The device includes a housing and a multilayer membrane. The housing is sized for implantation into the eye and includes an entrance port and an exit port. The membrane is anchored within the housing to form a flow control chamber on a first side and a fluid flow passageway on a second opposing side of the membrane. The chamber is arranged to contain a gas creating a chamber pressure, and the membrane is configured to affect flow through the passageway from the entrance port to the exit port by deflecting in response to changes in the chamber pressure. The membrane comprises a first layer having a higher permeability and a higher flexibility than the second layer, which is disposed adjacent the first layer and restricts the diffusion of gas in the chamber through the membrane.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: September 23, 2014
    Assignee: Alcon Research, Ltd.
    Inventors: Cesario P. Dos Santos, Michael L. Gelvin
  • Publication number: 20140276348
    Abstract: A siphon guard includes a housing having an inlet and an outlet. A primary flow path is disposed within the housing and is in fluid communication with the inlet and the outlet. A secondary flow path is disposed within the housing and is in fluid communication with the inlet and the outlet. The secondary flow path has a higher resistance to fluid flow than the primary path. A valve is disposed within the primary flow path. The valve has a valve seat and a first ball and a second ball. The first ball is movable by gravity between a valve closed position, where the first ball is in contact with the valve seat, and a valve open position, where the first ball is spaced from the valve seat. The first ball is disposed between the second ball and the valve seat. The second ball is movable by gravity between a valve closed position and a valve opened position.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: DEPUY SYNTHES PRODUCTS, LLC
    Inventor: DEPUY SYNTHES PRODUCTS, LLC
  • Publication number: 20140276349
    Abstract: An anti-siphon drainage device having a housing forming an internal chamber, an inlet and outlet ports part of the internal chamber and fluidly connected by a primary flow path. A valve seat is associated with the primary flow path, a sloped section extends from the valve seat, and a valve element disposed in the sloped section and can seat in the valve seat to restrict a fluid flow into the primary flow path from the inlet port. A secondary flow path can have an opening near the inlet port and an orifice near the outlet port. A regulator has an aperture to selectively open and close the opening of the secondary flow path. When the valve element is seated in the valve seat and restricting the fluid flow into the primary flow path, the fluid flows into the secondary flow path.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: DePuy Synthes Products, LLC
    Inventors: Stephen Wilson, Alyssa Trigger
  • Patent number: 8814820
    Abstract: An ocular disorder treatment implant includes an anchor and a therapeutic agent. The implant has a body with first and second end portions. The implant is configured to transport fluid from the anterior chamber of an eye to a physiological outflow pathway of the eye. The body has at least one inlet opening at the first end portion and at least one outlet opening at the second end portion such that the inlet and outlet openings are in fluid communication and define an axis therebetween. The anchor extends substantially perpendicularly to a part of the axis between the openings, and at least one outlet opening is configured to be positioned in the physiological outflow pathway. One implant has two outlet openings, and the anchor is disposed closer to one of the outlet openings.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: August 26, 2014
    Assignee: Glaukos Corporation
    Inventors: Olav B Bergheim, Morteza Gharib
  • Patent number: 8808219
    Abstract: Implants and methods for treating ocular disorders are described. One method involves providing an elongated delivery device and an implant mounted at a distal end of the delivery device. An incision is formed in eye tissue and the implant is inserted the through the incision using the delivery device. The implant is implanted at a location communicating with a physiologic outflow pathway of an eye such that a distal end portion of the implant and a proximal end portion of the delivery device are relatively disposed in a non-linear orientation during implantation. In one method, the implant is non-linear after insertion.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: August 19, 2014
    Assignee: Glaukos Corporation
    Inventors: Olav B Bergheim, Morteza Gharib
  • Patent number: 8801648
    Abstract: Implants and methods for treating ocular disorders are disclosed. One implant has an inlet portion configured to extend through a portion of a tissue of an eye and an outlet portion configured to extend into and along a physiologic outflow pathway of the eye. The implant provides a flow path between an anterior chamber of the eye and the physiologic outflow pathway. One implant includes a body having adjacent regions of differing cross-sectional dimensions configured to anchor the implant and/or stabilize at least a portion of the flow path through the implant. One method involves inserting a fiber optic in an eye, locating a distal end of the fiber optic at a physiologic outflow pathway through which aqueous humor drains from an anterior chamber of the eye, and delivering a material comprising a therapeutic agent along the fiber optic and into the physiologic outflow pathway.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: August 12, 2014
    Assignee: Glaukos Corporation
    Inventors: Olav B Bergheim, Morteza Gharib
  • Patent number: 8801647
    Abstract: Method for treating a Roux-en-Y patient having fistulas and leaks as a result of bariatric surgery. A gastrointestinal implant device is anchored in the esophagus and extends through a stomach pouch into an intestine anastomosed to the stomach pouch to prevent fistulas and other damaged tissue from making contact with food and fluids entering the esophagus. The gastrointestinal implant device includes an unsupported flexible sleeve and an anchor coupled to a proximal portion of the sleeve. The flexible sleeve is open at both ends, and adapted to extend below a jejunum. The anchor is adapted to be retained within the esophagus, preferably just above the gastroesophageal (GE) Junction. The anchor can include a stent such as a wave anchor and is collapsible for catheter-based delivery and removal.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: August 12, 2014
    Assignee: GI Dynamics, Inc.
    Inventors: David A. Melanson, Manoel dos Passos Galvao Neto
  • Patent number: 8801649
    Abstract: Methods and devices are adapted for implanting into the eye. An incision is formed in the cornea of the eye and a shunt is inserted through the incision into the anterior chamber of the eye. The shunt includes a fluid passageway. The shunt is passed along a pathway from the anterior chamber through the scleral spur of the eye into the suprachoroidal space and positioned in a first position such that a first portion of the fluid passageway communicates with the anterior chamber and a second portion of the fluid passageway communicates with the suprachoroidal space to provide a fluid passageway between the suprachoroidal space and the anterior chamber.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: August 12, 2014
    Assignee: Transcend Medical, Inc.
    Inventors: Eugene De Juan, Jr., Stephen Boyd, Mark E. Deem, Hanson S. Gifford, III, Dan Rosenman
  • Patent number: 8771221
    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: March 7, 2013
    Date of Patent: July 8, 2014
    Assignee: Sequana Medical AG
    Inventor: Daniel R. Burnett
  • Patent number: 8771217
    Abstract: Shunt devices and a method for continuously decompressing elevated intraocular pressure in eyes affected by glaucoma by diverting excess aqueous humor from the anterior chamber of the eye into Schlemm's canal where post-operative patency can be maintained with an indwelling shunt device which surgically connects the canal with the anterior chamber. The shunt devices provide uni- or bi-directional flow of aqueous humor into Schlemm's canal.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 8, 2014
    Assignee: Glaukos Corporation
    Inventors: Mary G Lynch, Reay H Brown
  • Patent number: 8740833
    Abstract: A venous shunt method adapted to shunt cerebral spinal fluid in a patient. A fluid control device having a fluid passage is adapted to be placed allowing cerebral spinal fluid to flow through the fluid passage. A catheter having a lumen, the catheter being in fluid communication with the fluid control device. At least a portion of at least one of the catheter and the fluid control device being subjected to an anti-thrombogenic treatment.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: June 3, 2014
    Assignee: Medtronic, Inc.
    Inventors: Ari Moskowitz, William J. Bertrand
  • Patent number: 8734378
    Abstract: Methods and devices are adapted for implanting into the eye. An incision is formed in the cornea of the eye and a shunt is inserted through the incision into the anterior chamber of the eye. The shunt includes a fluid passageway. The shunt is passed along a pathway from the anterior chamber through the scleral spur of the eye into the suprachoroidal space and positioned in a first position such that a first portion of the fluid passageway communicates with the anterior chamber and a second portion of the fluid passageway communicates with the suprachoroidal space to provide a fluid passageway between the suprachoroidal space and the anterior chamber.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: May 27, 2014
    Assignee: Transcend Medical, Inc.
    Inventors: Eugene De Juan, Jr., Stephen Boyd, Mark E. Deem, Hanson S. Gifford, III, Dan Rosenman
  • Patent number: 8721656
    Abstract: Methods and devices are adapted for implanting into the eye. An incision is formed in the cornea of the eye and a shunt is inserted through the incision into the anterior chamber of the eye. The shunt includes a fluid passageway. The shunt is passed along a pathway from the anterior chamber through the scleral spur of the eye into the suprachoroidal space and positioned in a first position such that a first portion of the fluid passageway communicates with the anterior chamber and a second portion of the fluid passageway communicates with the suprachoroidal space to provide a fluid passageway between the suprachoroidal space and the anterior chamber.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: May 13, 2014
    Assignee: Transcend Medical, Inc.
    Inventors: Eugene De Juan, Jr., Stephen Boyd, Mark E. Deem, Hanson S. Gifford, III, Dan Rosenman
  • Patent number: 8679048
    Abstract: A method is described for using a postoperative CSF dynamical examination to determine the CSF dynamical state of the patient and the dynamical state of the CSF shunt in conjunction therewith.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: March 25, 2014
    Assignee: Likvor AB
    Inventors: Nina Sundstrom, Anders Eklund, Jan Malm
  • Patent number: 8672871
    Abstract: An implantable shunt device for draining cerebrospinal fluid from a patient's subarachnoid space includes a shunt having opposed first and second ends and a one-way valve located at the first end of the shunt. A hollow passageway extends between the tip and one-way valve such that fluid can be drained through the tip and out through the valve. The endovascular cerebrospinal fluid shunt of the present invention can be placed into a patient percutaneously via a catheter inserted into the venous system of the body through a needle hole, without the need for open surgery. The device allows for more physiologic drainage of cerebrospinal fluid since the device shunts cerebrospinal fluid into the same cerebral venous system that occurs naturally in normal people.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: March 18, 2014
    Assignee: Tufts Medical Center, Inc.
    Inventors: Carl Heilman, Adel M. Malek
  • Publication number: 20140024995
    Abstract: A gravitational pressure regulating valve to regulate fluid flow of a patient, including a fluid chamber having an inlet port to receive a bodily fluid and an outlet port to discharge the received bodily fluid, and an opposing force member in the fluid chamber to oppose a first force of the fluid flow at the inlet port with a second force that varies according to changes in gravitational alignment.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 23, 2014
    Applicant: Arkis Bioscience
    Inventors: Chad Seaver, Chris Arnott, James Alexander Killeffer
  • Patent number: 8632513
    Abstract: When a patient is fitted with an external gastrostomy connection to the stomach, ingested food can be removed through the gastrostomy connection using a pump-based or siphon-based system to achieve weight loss. The process of removing ingested food can be improved by alternating the infusion of liquid into the stomach with the removal of material from the stomach. Optionally, stomach acid may be captured and returned to the stomach. Optionally, nutritional supplements or medicines may be added to the infused liquid. Optionally, a flush mount connectorized system with a built in valve may be used to simplify the interface with the gastrostomy hardware that remains installed in the patient. Optionally, the system may be configured to disable itself from further use after a triggering event (e.g., the passage of time or a predetermined number of uses) has occurred.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: January 21, 2014
    Assignee: Aspire Bariatrics, Inc.
    Inventors: Dean Kamen, Kevin L. Grant, Eric M. Soederberg, David E. Altobelli, David Flynn, Kenneth S. Solovay, Samuel Klein
  • Patent number: 8617094
    Abstract: Methods of treating ocular disorders are disclosed, such as a method that includes inserting an implant in eye tissue, using a delivery instrument, such that an inlet portion of the implant is in an anterior chamber of an eye and an outlet portion of the implant is in a physiological outflow pathway; removing the delivery instrument from the eye without removing the implant; and conducting fluid comprising a therapeutic substance through the implant and into the physiological outflow pathway. Another method includes inserting an instrument into a physiologic outflow pathway through which aqueous humor drains from an anterior chamber of an eye; separating first and second walls of tissues which comprise the physiologic outflow pathway by injecting a fluid comprising a drug from the instrument while the instrument remains in the physiologic outflow pathway; and withdrawing the instrument following the injection with said fluid remaining within the eye such that the drug has a therapeutic effect on the eye.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: December 31, 2013
    Assignee: Glaukos Corporation
    Inventors: Gregory Smedley, David Haffner, Hosheng Tu
  • Patent number: 8617139
    Abstract: Disclosed are devices, methods and systems for treatment of eye disease such as glaucoma. Implants are described herein that enhance aqueous flow through the normal outflow system of the eye with minimal to no complications. The implant can be reversibly deformed to a first shape, such as a generally linear shape conducive to insertion. Upon insertion, the implant can deform to a second shape, such as a generally non-linear shape conducive to retention within the eye. The shape also improves fluid flow from the anterior chamber and prevents or reduces clogging.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: December 31, 2013
    Assignee: Transcend Medical, Inc.
    Inventors: Thomas A. Silvestrini, Steven John, Jose Garcia, Richard S. Lilly
  • Patent number: 8529494
    Abstract: An ocular implant for treating glaucoma is provided, which may include any number of features. More particularly, the present invention relates to implants that facilitate the transfer of fluid from within one area of the eye to another area of the eye. One feature of the implant is that it includes a proximal inlet portion and a distal inlet portion adapted to be inserted into the anterior chamber of the eye, and an intermediate portion adapted to be inserted into Schlemm's canal. Another feature of the implant is that it can be biased to assume a predetermined shape to aid in placement within the eye.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: September 10, 2013
    Assignee: Ivantis, Inc.
    Inventors: Charles L. Euteneuer, Thomas R. Hektner, Andrew T. Schieber, John Wardle
  • Publication number: 20130218065
    Abstract: An improved shunt valve for the control of hydrocephalus provides for physiological atmospherically-referenced siphon control that is not adversely affected by overlying tissue. The valve includes one or more porous outer anti-fouling membranes to protect the flow control membranes from external mechanical tissue pressure, while permitting free movement of the flow control moveable membranes and permitting positive inlet pressure to regulate flow through the improved fluid shunt valve of the invention. The porous membranes are configured to prevent tissue ingrowth into the membranes pores while allowing adequate fluid flow across so as not to inhibit movement of the movable membrane.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 22, 2013
    Inventor: DAVID A. WATSON
  • Patent number: 8444588
    Abstract: A surgical technique and device wherein an indwelling tube is placed in the eye of a patient having glaucoma. The tube diverts aqueous humor from the anterior chamber to the suprachoroidal space from which it is removed by blood flowing in the choroidal and uveal tissues. This decreases the intraocular pressure.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: May 21, 2013
    Assignee: Transcend Medical, Inc.
    Inventor: Michael Yablonski
  • Patent number: 8414519
    Abstract: A portable system for subatmospheric pressure therapy in connection with healing a surgical wound, including a wound dressing dimensioned for positioning relative to a wound bed of a subject and a subatmospheric pressure mechanism dimensioned to be carried or worn by the subject. The subatmospheric pressure mechanism includes a housing having a control unit adapted to draw a vacuum and a canister associated with the housing. The canister has a collection bag disposed therein, which is in fluid communication with the wound dressing to receive exudates from the wound bed. The collection bag is adapted to expand upon receipt of the fluids and has means to release gas from within the collection bag in connection with operation of the control unit. With this arrangement, the canister is attitude independent, i.e., the canister may be positioned on edge, on its side or on its end etc. while still maintaining operation of the control unit.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: April 9, 2013
    Assignee: Covidien LP
    Inventors: Michael D. Hudspeth, Kenneth M. Breitweiser, Ricky A. Sisk, Michael C. Dorsey
  • Patent number: 8414518
    Abstract: An ocular implant adapted to reside at least partially in a portion of Schlemm's canal of an eye. In some embodiments the implant has a body extending in a curved volume whose longitudinal axis forms an arc of a circle, and a plurality of open areas and strut areas formed in the body, the open areas extending over more than 50% of a surface defining the curved volume, the strut areas surrounding the open areas, the body having a diameter of between 0.005 inches and 0.04 inches. The invention also provides a method of treating glaucoma including the steps of supporting tissue forming Schlemm's canal in an eye with an implant extending at least partially in the canal along an axial length within the canal; and contacting with the implant less than 50% of the tissue forming the canal along the axial length.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: April 9, 2013
    Assignee: Ivantis, Inc.
    Inventors: Andrew T. Schieber, Charles L. Euteneuer
  • Patent number: 8394048
    Abstract: A transvesicular drainage device configured to drain excess fluid from a variety of locations in the human body into the bladder. The device may be used to treat ascites or any fluid collection within the body of a human or of a non-human mammal.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: March 12, 2013
    Assignee: Sequana Medical AG
    Inventor: Daniel Rogers Burnett
  • Patent number: 8388568
    Abstract: Shunt devices and a method for continuously decompressing elevated intraocular pressure in eyes affected by glaucoma by diverting excess aqueous humor from the anterior chamber of the eye into Schlemm's canal where post-operative patency can be maintained with an indwelling shunt device which surgically connects the canal with the anterior chamber. The shunt devices provide uni- or bi-directional flow of aqueous humor into Schlemm's canal.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: March 5, 2013
    Assignee: Glaukos Corporation
    Inventors: Mary G. Lynch, Reay H. Brown
  • Patent number: 8382697
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: February 26, 2013
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20130023814
    Abstract: A drainage system that includes a ventricular catheter, a drainage catheter, and a positive displacement pump that can function to actively drain CSF from the ventricles of the brain of a patient. The pump can include, for example, a diaphragm pump, a piston pump, a rotor pump, a peristaltic pump, or a screw pump.
    Type: Application
    Filed: September 20, 2012
    Publication date: January 24, 2013
    Inventors: William J. Bertrand, Derek J. Harper, Lori Cone Speckman, Andrew R. Kiehl, Ron D. Scheer
  • Patent number: 8353856
    Abstract: Glaucoma treatments utilizing an implanted shunt having an elastomeric plate and a non-valved elastomeric drainage tube. The plate is positioned over a sclera of the eye with an outflow end of the elastomeric drainage tube open to an outer surface of the plate. An inflow end of the drainage tube tunnels through tissue to the anterior chamber of the eye. The drainage tube collapses upon insertion within an incision in the sclera and cornea, or at a kink on the outside of the incision, but has sufficient resiliency to restore its patency over time. Delayed fluid communication between the outflow and inflow ends of the drainage tube permits a scar tissue bleb to form around the plate. The plate desirably has a peripheral ridge and fenestrations, and a longer suturing tab extending from one side of the plate to enhance visibility and accessibility when suturing the shunt to the sclera.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: January 15, 2013
    Assignee: Abbott Medical Optics Inc.
    Inventor: George Baerveldt
  • Patent number: 8343139
    Abstract: A portable systems release fluid pressure with a cavity within a patient. These systems include a drainage catheter, a pressure-responsive one-way valve, and a fluid reservoir all adapted to be mounted in proximity to the cavity being drained. One system in particular is used in relieving intracranial pressure. This intracranial pressure relief system may include a headband to which are mounted the one-way valve and reservoir. The drainage catheter may have mounted thereon a cranium seal formed of a soft material that contacts the inner wall of a cranium bore hole. The cranium seal may have threads to facilitate advancement into the bore hole.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: January 1, 2013
    Inventor: A. Mateen Ahmed
  • Patent number: 8337445
    Abstract: The invention relates generally to medical devices and methods for the treatment of ocular disorders. One method provides an implant having an inlet portion with a first anchor and an outlet portion with a second anchor. The implant is implanted in tissue of an eye such the implant conducts fluid from an anterior chamber of the eye to a physiological outflow pathway of the eye. The implanting involves positioning the first anchor adjacent eye tissue, positioning the second anchor within the physiological outflow pathway, and deploying the second anchor such that the second anchor secures the implant within the physiological outflow pathway and a distal end of the second anchor is positioned further into the physiological outflow pathway than an outlet of the outlet portion.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: December 25, 2012
    Assignee: Glaukos Corporation
    Inventors: Hosheng Tu, Gregory T Smedley, Barbara A Niksch, David S Haffner
  • Patent number: 8333728
    Abstract: An implantable shunt that includes one or more catheters configured so that the implantable shunt has a resistance to flow greater than about 3 mm Hg/mL/minute. An implantable shunt system that includes one or more catheters and a fluid control device that utilizes the properties of the catheters to improve the expected function of the shunt by providing a higher or lower resistance to the flow through the shunt and reduces the effect of pulsations of cerebrospinal fluid on the shunt system.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: December 18, 2012
    Assignee: Medtronic, Inc.
    Inventors: William J. Bertrand, Lori C. Speckman, Javier J. Reveles, Andy R. Kiehl
  • Patent number: 8292856
    Abstract: Drainage system including a ventricular catheter, a drainage catheter, and a positive displacement pump that can function to actively drain CSF from the ventricles of the brain of a patient. Methods of using a drainage system in accordance with the invention are also disclosed, as well as kits.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: October 23, 2012
    Assignee: Medtronic, Inc.
    Inventors: William J. Bertrand, Derek J. Harper, Lori Cone Speckman, Andrew R Kiehl, Ron D Scheer
  • Patent number: 8226592
    Abstract: A method for treatment of COPD, hypertension, and left ventricular hypertrophy, and chronic hypoxia including creation of an artificial arterio-venous fistula and installation of a flow mediating device proximate the fistula. The flow mediating device is operated to limit flow as medically indicated to provide the optimum amount of bypass flow.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: July 24, 2012
    Assignee: ROX Medical, Inc.
    Inventors: Rodney A. Brenneman, J. Christopher Flaherty