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With flow control means (e.g., check valves, hydrocephalus pumps, etc.)

Subclass of:

604 - Surgery

604008000 - DEVICES TRANSFERRING FLUIDS FROM WITHIN ONE AREA OF BODY TO ANOTHER (E.G., SHUNTS, ETC.)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
604010000 With antisiphon means 4
20130218065SHUNT VALVE FOR CONTROLLING SIPHON EFFECT - 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.08-22-2013
20100056980A DRAINAGE SYSTEM FOR TREATING HYDROCEPHALUS - The present invention relates to a drainage device comprising: 03-04-2010
20100121250Dual Channel Shunt Device and Method for Ventriculo-Peritoneal Shunting of Bloody Cerebrospinal Fluid - A dual channel shunt device (05-13-2010
20130023814METHOD OF USING A SYSTEM FOR DRAINING CEREBRAL SPINAL FLUID - 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.01-24-2013
Entries
DocumentTitleDate
20110201991VALVE BYPASS GRAFT DEVICE, TOOLS, AND METHOD - A medical implant comprises a hollow conduit having a first end opening, a second end opening, and a slit opening located between said first and second end openings, and a one way valve located within said conduit.08-18-2011
20130030351DELIVERY DEVICES AND METHODS FOR GASTROINTESTINAL IMPLANTS - Several gastrointestinal surgery procedures are effective as treatments for metabolic disorders such as obesity and diabetes. Minimally invasive procedures including intra-luminal gastrointestinal implants have been proposed to mimic the anatomical, physiological and metabolic changes achieved by these procedures. Many of these designs include long sleeve like elements that prevent contact of food with the walls of the small intestine. It is desirable to have simple delivery systems that can place these implants under endoscopic guidance. However, in order to anchor these sleeve elements safely and reliably, the inventors have previously disclosed anchoring means that anchor the sleeves at the junctions of the stomach and the intestine or the stomach and esophagus.01-31-2013
20090043243METHODS AND DEVICES FOR LOADING TEMPORARY HEMOSTATIC SEALS - Disclosed herein are methods, devices, and systems for folding a sealing element. A loader can receive a substantially unfolded sealing element, which when moved through the loader is configured for receipt in an insertion instrument. For example, the sealing element can be folded into a substantially prolate spheroidal shape. The folded sealing element can then be inserted into the insertion instrument. In one aspect, the loader is adapted to allow insertion of the folded sealing element into the insertion instrument when the folded sealing element is within a channel of the loader.02-12-2009
20100056978Externally adjustable blood flow valve - A valve installed in a blood vessel can be externally adjusted over a wide range of flow rates. Such a valve can be incorporated in an AV shunt or AV fistula to allow large flow during dialysis and small flow at all other times. The valve can be activated by finger pressure, hypodermic needle or by an electromagnetic field. The valve is shaped like a Venturi tube with round cross section and smooth diameter transition to minimize blood damage and clotting. Hemodynamic properties are further enhanced by keeping the part coming in contact with the blood a single continuous tubing.03-04-2010
20110196282DEVICES, SYSTEMS, AND METHODS FOR AUTORETROPERFUSION - Devices, systems, and methods for autoretroperfusion. In at least one embodiment of a perfusion system of the present disclosure, the system comprises a first catheter having a proximal end, a distal end, and a first lumen therethrough, the distal end configured for insertion into a luminal organ of a patient, a coupler defining an outlet port and a first port, the coupler configured to engage the proximal end of the first catheter at the outlet port and to receive blood from a blood supply through the first port, a first tube having a proximal end, a distal end, and a lumen therethrough, the distal end of the first tube configured to engage the first port of the coupler and to receive the blood from the blood supply, and a first flow regulator in communication with one or more of the coupler and the first tube, the first flow regulator operable to regulate a flow and/or a pressure of the blood through at least part of the system, wherein the system is configured to permit the blood from the blood supply to flow through the first tube, the coupler, and the first catheter into the patient to treat a patient condition.08-11-2011
20110196281SHUNT DEVICE AND METHOD FOR TREATING OCULAR DISORDERS - 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.08-11-2011
20130085439DEVICE TO ENCOURAGE BLOOD CIRCULATION BETWEEN DIALYSIS - A vascular access system includes a vascular access device and a portable recirculation device. The vascular access device defines at least one lumen and is configured and dimensioned to be positioned within a blood vessel of a patient. The recirculation device includes a housing defining a channel having an inlet port and an outlet port for passage of blood through the channel. The channel includes a pump for circulating blood through the vascular access device.04-04-2013
20130085440Selectable Varied Control Valve Systems For IOP Control Systems - A selectable IOP valve for implantation in an eye of a patient controls IOP and/or bleb pressure. The valve includes a drainage tube configured to convey aqueous from an anterior chamber of an eye and includes a selectable flow control valve in fluid communication with the drainage tube and configured to control flow rates of the aqueous. The valve system includes a plurality of flow control pathways arranged to operate in parallel with each other, each of the flow control pathways being in communication with an entry port to the valve system. A flow control mechanism controls aqueous flow through the pathways. Methods and systems are also disclosed.04-04-2013
20100076366MODULAR SPINAL FLUID FLOW REGULATION DEVICE AND METHOD - A shunt system for telemetrically measuring, regulating and/or adjusting cerebrospinal fluid flow rate, intercranial pressure, intraspinal pressure and/or intraventricular pressure and a method for use. The shunt system includes a shunt assembly, a first catheter and a second catheter that may be implanted using a novel introducer assembly. In addition to regulating fluid pressure and flow rate, the shunt system may also be used to deliver therapeutic compositions.03-25-2010
20130085441SHUNT VALVE FOR TREATMENT OF HYDROCEPHALUS04-04-2013
20090156978Arterio-venous shunt devices - A long-term implantable arterio-venous shunt device is provided that can be used as a therapeutic method. The shunt device is implanted between an artery and a vein, preferably between the aorta and the inferior vena cava. The shunt device decreases the systemic vascular resistance and allows a blood flow rate through the shunt device of at least 5 ml/min after the implantation. The blood flow rate could be controlled either via an open loop or a closed loop control means. The shunt device could also be a self-adjustable shunt device to self-adjust its structure to control the blood flow rate through its lumen. Based on the effects of the shunt device to the respiratory, cardiac and circulatory system, the implantable shunt device could be beneficial as a therapy to patients with problems or conditions related to these systems.06-18-2009
20100331757DIALYSIS VALVE AND METHOD - A dialysis valve includes a tube attached between an artery and a vein which, when elongated, simultaneously narrows in diameter at at least one location. The narrowed portion of the tube decreases the volume and velocity between the arterial and venous side of the patient to prevent damage or intimal hyperplasia on the venous side between dialysis treatments. When the valve is opened for dialysis, an unrestricted blood flow exists between the arterial and venous side, permitting a controlled, open blood flow during dialysis.12-30-2010
20120184893ANCHORS AND METHODS FOR INTESTINAL BYPASS SLEEVES - A gastrointestinal device for implanting within a pylorus, a duodenal bulb, and a duodenum of a patient's gastrointestinal tract includes an expandable structure including a proximal portion having a plurality of spring arms and a distal portion having a plurality of spring arms, the proximal and distal portions coupled by a rigid central cylinder having a diameter capable of fitting within the pylorus and having a length greater than a width of the pylorus. An intestinal bypass sleeve is coupled to at least one of the proximal and distal portions of the expandable structure and having a length sufficient to extend at least partially into the duodenum. In the expanded configuration, the proximal portion has a diameter larger than a maximum opening diameter of the pylorus and further wherein, in the expanded configuration, the distal portion has a diameter larger than a maximum opening diameter of the pylorus.07-19-2012
20120184892APPARATUS AND METHODS FOR TREATING EXCESS INTRAOCULAR FLUID - An ocular drainage system is provided for treating diseases that produce elevated intraocular pressures, such as glaucoma, wherein the system includes an implantable device and an external control unit. The implantable device includes a non-invasively adjustable valve featuring at least one deformable tube and a disk rotatably mounted within a housing, such that rotation of the disk using the external control unit causes the disk to apply a selected amount of compression to the deformable tube, thereby adjusting the fluidic resistance of the deformable tube and regulating the intraocular pressure.07-19-2012
20130060186DEVICE AND METHOD FOR ESTABLISHING AN ARTIFICIAL ARTERIO-VENOUS FISTULA - A shunt rivet for implantation in the aorta and inferior vena cava to treat chronic obstructive pulmonary disease, and a method of treating chronic obstructive pulmonary disease.03-07-2013
20130066253ADJUSTMENT FOR HYDROCEPHALUS SHUNT VALVE - An implantable medical device is disclosed that includes a valve seat and a valve member movable with respect to the valve seat. An adjustment circuit assembly includes a resistive element that is coupled to the valve member and operable to position the valve member relative to the valve seat so as to alter the pressure setting in response to a current applied to the resistive element.03-14-2013
20100010415HIGH PRESSURE RANGE HYDROCEPHALUS VALVE SYSTEM - A valve for use in a shunt system to drain fluid from one part of a patient's body to another is provided. In an exemplary embodiment, the valve is operable at a threshold pressure that is selectively adjustable up to at least about 400 mm H01-14-2010
20100056979IMPLANTABLE OCULAR PUMP TO REDUCE INTRAOCULAR PRESSURE - A trabecular pump is implantable in the eye to reduce intraocular pressure. The pump drains aqueous humor from the anterior chamber into outflow pathways, such as Schlemm's canal. A feedback system includes an intraocular pump and a pressure sensor in communication with the pump, for regulating intraocular pressure.03-04-2010
20130165842METHODS AND DEVICES TO CURB APPETITE AND/OR REDUCE FOOD INTAKE - The present invention relates to methods and devices that help to curb appetite and/or reduce food intake. In one embodiment, the methods and devices of the present invention include a small intestinal/duodenal insert comprising an elongated member with at least one flow reduction element that can cause the stimulation of one or more biological signals of satiety.06-27-2013
20100022940Percutaneously Introduceable Shunt Devices and Methods - Catheters, implantable shunt devices and methods usable to establish passageways between blood vessels and/or other anatomical structures within the body of a human or animal subject.01-28-2010
20110282264METHOD OF DRAINING CEREBROSPINAL FLUID - A method of draining cerebrospinal fluid from a human brain. The method includes providing a drainage catheter having a proximal end and a distal end. The drainage catheter has a plurality of openings formed therein. The plurality of openings includes a first opening, a second opening, and a most proximal opening. The second opening is disposed closer to the distal end than the first opening. A cross-sectional area of the first opening is less than a cross-sectional area of the second opening. The distal end of the drainage catheter is inserted into a human brain. Cerebrospinal fluid is drained from the human brain. The cerebrospinal fluid passes into the drainage catheter through the plurality of openings and out of the drainage catheter through the proximal end. A rate at which the cerebrospinal fluid passes through the drainage catheter is controlled to maintain intracranial pressure within a selected range.11-17-2011
20100249692Systems, devices, and methods including infection-Fighting and monitoring shunts - Systems, devices, methods, and compositions are described for providing an actively controllable shunt configured to, for example, monitor, treat, or prevent an infection.09-30-2010
20100249691GLAUCOMA SHUNTS WITH FLOW MANAGEMENT AND IMPROVED SURGICAL PERFORMANCE - A method of treating glaucoma in an eye by managing fluid flow past 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 face of the plate. An inflow end of the drainage tube tunnels through the sclera to the anterior chamber of the eye. The plate may have regions of greater propensity for cell adhesion alternating with regions of lesser cell adhesion. For example, regions of texturing around the plate or drainage tube may be provided to control the size of a bleb that forms over the implant. The effective surface area of the plate may be balanced against a number of fenestrations. The drainage tube has a reduced profile and may be shaped with a non-circular external cross-section to reduce its height. A scleral groove may be used to further reduce the height of the drainage tube on the sclera. A flow restrictor for the early post operative period will immediately lower the intraocular pressure (IOP) and simultanously prevent hypotony.09-30-2010
20100249690Tools And Methods For Programming An Implantable Valve - A two-part tool for reading and adjusting an implantable valve, and methods of use. The tool includes a locator-indicator component that, when placed matingly on the patient's skin over the valve, provides magnetic reading of the valve setting. The tool also includes an adjustor component that couples to the locator-indicator component and is rotatable to change a valve setting.09-30-2010
20120289883Implantable Intraocular Pressure Drain - An implanted parylene tube shunt relieves intra-ocular pressure. The device is implanted with an open end in the anterior chamber of the eye, allowing excess fluid to be drained through the tube out of the eye. In one embodiment, only a first end of the tube implanted into the anterior chamber of the eye is open. Intra-ocular pressure (IOP) is then monitored, for example utilizing an implanted sensor. When IOP exceeds a critical valve, a practitioner intervenes, puncturing with a laser a thinned region of the tube lying outside the eye, thereby initiating drainage of fluid and relieving pressure. In accordance with alternative embodiments, the both ends of the tube are open, and the tube includes a one-way valve configured to permit drainage where IOP exceeds the critical value. The tube may include projecting barbs to anchor the tube in the eye without the need for sutures.11-15-2012
20120289880Methods, Devices, Kits and Systems for Defunctionalizing the Cystic Duct - The application discloses devices, systems, kits and methods for treating biliary disease. Devices comprise, for example, a component configurable for deployment between within a cystic duct of a patient which has a proximal end and a distal end. In some embodiments, a lumen may also extend therethrough.11-15-2012
20090275876DEVICE AND METHOD FOR ESTABLISHING AN ARTIFICIAL ARTERIO-VENOUS FISTULA - A shunt rivet for implantation in the aorta and inferior vena cava to treat chronic obstructive pulmonary disease, and a method of treating chronic obstructive pulmonary disease.11-05-2009
20110295182METHODS FOR LOADING A PROSTHESIS - The present disclosure relates to devices and methods for implanting a prosthesis into a heart of a mammal, such as a person. The disclosure includes a prosthesis that acts as a pressure vent between the left and right atria of the heart. The disclosure also includes a mounting tool for mounting the prosthesis onto a loading tool, the loading tool useful for loading the prosthesis onto a device for delivering the prosthesis into the patient's heart. Control devices and methods for using these devices are also disclosed. The intracardiac pressure vents disclosed allow sufficient flow from the left atrium to the right atrium to relieve elevated left atrial pressure and resulting patient symptoms. The devices also limit the amount of flow from the right atrium to the left atrium to minimize the potential for thrombi or other embolic material from entering arterial circulation.12-01-2011
20110295183CONTROL DEVICES FOR DEPLOYING A PROSTHESIS - The present disclosure relates to devices and methods for implanting a prosthesis into a heart of a mammal, such as a person. The disclosure includes a prosthesis that acts as a pressure vent between the left and right atria of the heart. The disclosure also includes a mounting tool for mounting the prosthesis onto a loading tool, the loading tool useful for loading the prosthesis onto a device for delivering the prosthesis into the patient's heart. Control devices and methods for using these devices are also disclosed. The intracardiac pressure vents disclosed allow sufficient flow from the left atrium to the right atrium to relieve elevated left atrial pressure and resulting patient symptoms. The devices also limit the amount of flow from the right atrium to the left atrium to minimize the potential for thrombi or other embolic material from entering arterial circulation.12-01-2011
20120191030EUSTACHIAN TUBE DEVICE - A device stenting the Eustachian tube is inserted through the nasopharynx and provides enhanced ventilation and drainage to the middle ear. Also provided is a method for inserting the device into the Eustachian tube and through the isthmus of a human subject.07-26-2012
20110201990SYSTEM AND METHOD TO INCREASE THE OVERALL DIAMETER OF VEINS - A system and method for increasing the speed of blood and wall shear stress (WSS) in a peripheral vein for a sufficient period of time to result in a persistent increase in the overall diameter and lumen diameter of the vein is provided. The method includes pumping blood at a desired rate and pulsatility. The pumping is monitored and adjusted, as necessary, to maintain the desired blood speed, WSS and pulsatility in the peripheral vein in order to optimize the rate and extent of dilation of the peripheral vein.08-18-2011
20090036820IMPLANTABLE FLOW CONNECTOR - An implantable flow connector for fluidically coupling a source tissue-enclosed body space with a destination element, comprising: a conduit having a lumen terminating at an orifice at a first end of the conduit implantable in the source body space through an opening formed in a tissue wall of the source body space, and a second end of the conduit implantable in the destination element through an opening in a surface of the destination element; and a circumferential flange, radially extending from the conduit proximate the conduit first end, configured to be implanted in the source body space adjacent an opening in the tissue wall of the source body space such that the conduit extends through the opening, the flange comprising one or more circumferentially adjacent sections at least one of which has a rigidity that decreases in a radially-increasing direction.02-05-2009
20120143118OPTIC NERVE IMPLANTS - Methods and devices for delivering therapeutic substances into the eye. An implant containing the therapeutic substance is implanted at least partially within the optic nerve and the therapeutic substance then elutes from the implant. The implant may have a lumen or it may be solid.06-07-2012
20090287136METHOD AND APPARATUS FOR FLUID DRAINAGE OF THE EYE - An implantable drain for the anterior chamber of the eye for venting fluid therefrom to relieve pressure. The device features a serpentine draining conduit having an aggregate length much longer than a liner conduit. The conduit is engaged within the sclera in a pocket formed under a scleral flap. The conduits may be interchanged with a shunt or other component communicating into the anterior chamber.11-19-2009
20120296257BILIARY SHUNTS, DELIVERY SYSTEMS, METHODS OF USING THE SAME AND KITS THEREFOR - The application discloses devices, systems, kits and methods for treating biliary disease. Device comprise, for example, a component configured for deployment between a gallbladder and location within a gastrointestinal tract of a patient which has a proximal end and a distal end with a lumen extending therethrough. A method of deploying the device can be achieved by, for example, creating a duct or fistula between a gallbladder lumen and a portion of a gastrointestinal tract; and providing for drainage from the gallbladder to the gastrointestinal tract.11-22-2012
20080281250Self-Clearing Catheter for Clinical Implantation - The invention disclosed herein provides methods and apparati that utilize micro-electro-mechanical systems that can be used for example to prevent and/or clear obstructions in the fluid conduits of medical devices such as catheters.11-13-2008
20130218064Glaucoma Drainage Device with Pump - A glaucoma drainage device has a main drainage tube with a first end an anterior chamber of an eye and a second end in a drainage location. A bypass drainage tube is fluidly coupled to and in parallel with the main drainage tube. A pump is in communication with the bypass drainage tube. The pump comprises a first driver and a first flexible membrane enclosing a first chamber. A first check valve is located upstream from the pump, and a second check valve is located downstream from the pump. An active valve is located upstream from the first check valve. The active valve comprises a second driver and a second flexible membrane enclosing a second chamber. A third check valve is located between the active valve and the second end of the main drainage tube. A volume of the first chamber is changed to pump fluid from the anterior chamber.08-22-2013
20120296258Intraocular Pressure Sensor with External Pressure Compensation - An intraocular pressure sensor system has a first pressure sensor located in an anterior chamber of an eye and a remote pressure sensor located remotely from the first pressure sensor. The remote pressure sensor measures or approximates atmospheric pressure. A difference between readings from the first pressure sensor and the remote pressure sensor approximates intraocular pressure.11-22-2012
20120197178READING AND ADJUSTING TOOL FOR HYDROCEPHALUS SHUNT VALVE - A reading and adjustment tool for use with a valve having a pressure or flow setting adjustable to a plurality of pressure or flow settings is disclosed. The tool includes a signal generator and an excitation coil coupled to the signal generator. The signal generator includes an adjustment interface configured to generate an adjustment signal to adjust the pressure or flow setting and a reading interface to generate a reading signal to read the pressure or flow setting of the valve. At least one excitation coil is connected to the signal generator and configured to generate an oscillating electromagnetic field based on one of the adjustment signal and reading signal. A sense coil can include two portions positioned on either side of the at least one excitation coil to determine the pressure or flow setting of the valve.08-02-2012
20090143713Biliary Shunts, Delivery Systems, Methods of Using the Same and Kits Therefor - The application discloses devices, systems, kits and methods for treating biliary disease. Device comprise, for example, a component configured for deployment between a gallbladder and location within a gastrointestinal tract of a patient which has a proximal end and a distal end with a lumen extending therethrough. A method of deploying the device can be achieved by, for example, creating a duct or fistula between a gallbladder lumen and a portion of a gastrointestinal tract; and providing for drainage from the gallbladder to the gastrointestinal tract.06-04-2009
20090005720Programmable Shunt with Electromechanical Valve Actuator - Devices and methods for regulating and directing bodily fluids from one region of a patient to another region are disclosed. In general, an apparatus is provided that can include an implantable shunt system and a system controller. The implantable shunt system can have an adjustable valve for regulating the flow of fluid, a sensor element for measuring a physiological characteristic of a patient, and an electromechanical valve actuator that can be adapted to adjust a resistance of the valve. The implantable shunt system can be in electrical communication with the system controller. The system controller can generally be adapted to receive a physiological characteristic of the patient and operate the electromechanical valve actuator to adjust a resistance of the valve. The apparatus can also include an external programming device that is in communication with the system controller.01-01-2009
20090024072METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW - Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.01-22-2009
20120289882INTRA-ATRIAL IMPLANTS HAVING VARIABLE THICKNESSES TO ACCOMODATE VARIABLE THICKNESS IN SEPTUM - The invention is a septal implant that can accommodate variable thicknesses of the patient's atrial septum as well the variable thicknesses of septums across a population. The invention is able to accomplish this result by having flexible annular flanges that define a gap into which the septum fits. Due to the flexible nature of the annular flanges, the gap is adjustable.11-15-2012
20110230815SYRINX CAVITY SHUNT DEVICE AND METHOD - A shunt is provided having a first catheter end with one or more apertures that provide access to an interior of the shunt. At least a portion of the first catheter end has a substantially helical shape and the one or more apertures are disposed on an interior surface of the substantially helical shape of the first catheter end. The shunt also includes a second catheter end providing access to the interior of the shunt for drainage of the shunt at a remote location. The shunt further includes a catheter body disposed between the first catheter end and the second catheter end.09-22-2011
20120078159MULTI-LUMEN VENTRICULAR DRAINAGE CATHETER - A shunt includes a housing having an inlet, an outlet and a flow control mechanism disposed within the housing. A ventricular catheter is connected to the inlet of the housing. The catheter has a longitudinal length, a proximal end, a distal end, and an inner lumen extending therethrough. The inner lumen of the catheter includes at least two lumens at the distal end and has only one lumen at the proximal end. The catheter has one slit and aperture corresponding to each of the at least two lumens located at the distal end of the catheter.03-29-2012
20090204055TREATING URINARY RETENTION - A urethral prosthesis provides relief of urinary retention and has first and second tubular elements with an interposed bridge segment. A valve can be disposed in the second tubular element to control the flow of urine therethrough.08-13-2009
20090112147Wireless Pressure Setting Indicator - Devices and methods useful for non-invasively indicating the position or setting of a mechanical device, such as a sensor or control in an implanted medical device, are disclosed. In one exemplary embodiment, a valve housing adapted to receive fluid flow therethrough is provided. The flow of fluid through the valve housing can be controlled, for example, by a valve assembly that has a plurality of predetermined pressure settings. A radio frequency tag can be disposed in the valve assembly, and the masking element and the radio frequency tag can be configured to move relative to one another. The relative positions of the masking element and the radio frequency tag can alter the response of the radio frequency tag to a wireless signal (which can be emitted from an external reading device, for example) and thereby indicate the pressure setting of the valve assembly. For example, in some embodiments, the masking element can selectively cover at least part of the radio frequency tag according to the pressure setting of the valve assembly, which can change a characteristic of the radio frequency tag's response to the wireless signal.04-30-2009
20090204054TRANSCUTANEOUS TELEMETRY OF CEREBROSPINAL FLUID SHUNT PROGRAMMABLE-VALVE PRESSURE USING NEAR-INFRARED (NIR) LIGHT - An improvement for a programmable valve system of the type implanted in a patient and used to divert cerebrospinal fluid (CSF) from an intraventricular space to a terminus such as the peritoneal cavity. Such system includes means for establishing a flow path for the CSF to the terminus, which flow path includes a normally closed valve and means for adjusting the opening pressure of the valve in order to regulate the quantity of CSF diverted. The improvement enables an operator to be apprised of the actual opening pressure setting of the valve. A sensor is implantable at the patient and responds to the actual opening pressure setting, by generating an NIR telemetry signal indicative of the actual setting. This signal is transcutaneously transmitted through the skin of the patient to an external point. The telemetry signal is processed to produce observer intelligible data indicating the opening pressure setting of the valve.08-13-2009
20120197177ADJUSTMENT FOR HYDROCEPHALUS SHUNT VALVE - An implantable medical device is disclosed that includes a valve seat and a valve member movable with respect to the valve seat. An adjustment circuit assembly includes a resistive element that is coupled to the valve member and operable to position the valve member relative to the valve seat so as to alter the pressure setting in response to a current applied to the resistive element.08-02-2012
20120095385INTRAGASTRIC IMPLANTS WITH DUODENAL ANCHORS - Intragastric fluid transfer devices and related methods for operation thereof are disclosed. The intragastric fluid transfer devices and related methods are intended to assist a patient in maintaining a healthy body weight by stimulating the inner stomach walls and/or the inner duodenum walls. Features of the intragastric fluid transfer device include insertion of the devices transorally and without invasive surgery, without associated patient risks of invasive surgery, and without substantial patient discomfort. The life span of these intragastric fluid transfer devices may be material-dependent upon long-term survivability within an acidic stomach, but is intended to last one year or longer.04-19-2012
20100185138FLOW REGULATING IMPLANT, METHOD OF MANUFACTURE, AND DELIVERY DEVICE - An implant includes a tube for permitting fluid flow. A flow controlling rod may be inserted within the tube passage. One or more holes around the circumference of the tube may be selectively permanently or temporarily occluded to give desired flow characteristics. A delivery device for implanting the implant may include a central bore in which a retractable wire is located. The retractable wire penetrates a tube passage of the implant. After the implant is in position in the eye, the retention wire is retracted out of the implant. In a method for manufacturing an implant, two tubes of different diameters are utilized. The smaller tube fits inside the longitudinal bore of the larger tube. When the tubes are cut, the smaller tube forms the tube of the implant and the remaining portions of the larger tube form the retention projection and/or disk of the implant.07-22-2010
20110060265IMPLANTABLE SHUNT OR CATHETER ENABLING GRADUAL DELIVERY OF THERAPEUTIC AGENTS - An implantable catheter or shunt for draining fluid from a body cavity. The catheter or shunt body has a wall structure that carries one or more therapeutic agents in a manner enabling release of the therapeutic agent from the wall structure in situ after surgical implantation of the catheter or shunt body. The therapeutic agent can be gradually released over time to prevent infection, inhibit tissue ingrowths, and/or provide some other desired medicinal purpose. As an example, the therapeutic agent can be rapamycin or an mTOR inhibitor. According to some contemplated embodiments of the present invention, the therapeutic agent carried by the catheter/shunt is rechargeable or refillable in situ so that the therapeutic agent can be gradually released from the catheter/shunt over the expected useful life of the catheter/shunt.03-10-2011
20100191170METHOD AND APPARATUS FOR TREATING A CAROTID ARTERY - One disclosed embodiment comprises a method for treating lesions in the carotid artery of a mammalian body. The method comprises transcervical access and blocking of blood flow through the common carotid artery (with or without blocking of blood flow through the external carotid artery), shunting blood from the internal carotid artery and treating the lesion in the carotid artery.07-29-2010
20100228179No clog shunt using a compact fluid drag path - The present invention is an improved shunt system for draining CSF. The system includes a removable sheath for reduction of catheter clogging during shunt insertion, a catheter with relatively large holes, an extracranial filter to allow non-invasive filter replacement, and a wireless flow/pressure meter to monitor and control CSF flow.09-09-2010
20100210991METHODS AND CONDUITS FOR FLOWING BLOOD FROM A HEART CHAMBER TO A BLOOD VESSEL - Disclosed is a conduit that provides a bypass around an occlusion or stenosis in a coronary artery. The conduit is a tube adapted to be positioned in the heart wall to provide a passage for blood to flow between a heart chamber and a coronary artery, at a site distal to the occlusion or stenosis. The conduit has a section of blood vessel attached to its interior lumen which preferably includes at least one naturally occurring one-way valve positioned therein. The valve prevents the backflow of blood from the coronary artery into the heart chamber.08-19-2010
20110112460ADJUSTABLE VALVE SETTING WITH MOTOR CONTROL - An implantable medical device is disclosed that includes a valve body and a valve rotor adjustable with respect to the valve body. A tool can be utilized to determine and control a position of the valve rotor with respect to the valve body. The tool can include a valve body position reader, a valve rotor position reader and a valve rotor position controller to determine a valve setting for the device and adjust the valve setting as desired.05-12-2011
20100210992MULTI-BRANCHED ANTI-REFLUX VALVE - A shunt system includes a first catheter and a second catheter, each having a proximal end and a distal end, and at least one opening adjacent to its distal end. A proximal end of a drainage catheter is in fluid communication with the proximal end of the first catheter and the proximal end of the second catheter. A first one-way valve is disposed in fluid communication with the first catheter between its proximal end and its at least one opening. The first one-way valve effectively blocks fluid flow from the proximal end to the at least one opening. A second one-way valve is disposed in fluid communication with the second catheter between its proximal end and its at least one opening. The second one-way valve effectively blocks fluid flow from the proximal end to the at least one opening.08-19-2010
20100262064Optimization of hydrocephalus shunt settings - 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.10-14-2010
20090318844IMPLANTABLE FLUID MANAGEMENT DEVICE FOR THE REMOVAL OF EXCESS FLUID - 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.12-24-2009
20090105631SYSTEMS AND METHODS FOR CONTROLLING RENOVASCULAR PERFUSION - Devices, systems and methods by which the real or apparent renovascular perfusion and intrarenal pressure may be selectively and controllably increased. By selectively and controllably increasing renovascular perfusion and interstitial hydrostatic pressure when the heart is unable to pump sufficient blood or when renal perfusion is suboptimal, the present invention reduces or reverses neurohormonal activation and fluid retention, and thereby minimizes their deleterious effects on the heart, vasculature, kidneys and other body systems.04-23-2009
20130131577UVEOSCLERAL DRAINAGE DEVICE - An ophthalmic shunt implantable in an eye having an elongate body and a branched conduit for conducting aqueous humor from an anterior chamber of the eye to the suprachoroidal space of the eye and the subconjunctival space, and a plate extending from an upper surface of the elongate body.05-23-2013
20100312164IMPLANTABLE DRAINAGE DEVICE - An implantable drainage device is provided. The device is adapted to move body fluid from one part of the body of a patient to another part of the body.12-09-2010
20130144203Methods And Conduits For Flowing Blood From A Heart Chamber To A Blood Vessel - Disclosed is a conduit that provides a bypass around an occlusion or stenosis in a coronary artery. The conduit is a tube adapted to be positioned in the heart wall to provide a passage for blood to flow between a heart chamber and a coronary artery, at a site distal to the occlusion or stenosis. The conduit has a section of blood vessel attached to its interior lumen which preferably includes at least one naturally occurring one-way valve positioned therein. The valve prevents the backflow of blood from the coronary artery into the heart chamber.06-06-2013
20110040233WIRELESS PRESSURE SETTING INDICATOR - Devices and methods useful for non-invasively indicating the position or setting of a mechanical device, such as a sensor or control in an implanted medical device, are disclosed. In one exemplary embodiment, a valve housing adapted to receive fluid flow therethrough is provided. The flow of fluid through the valve housing can be controlled, for example, by a valve assembly that has a plurality of predetermined pressure settings. A radio frequency tag can be disposed in the valve assembly, and the masking element and the radio frequency tag can be configured to move relative to one another. The relative positions of the masking element and the radio frequency tag can alter the response of the radio frequency tag to a wireless signal (which can be emitted from an external reading device, for example) and thereby indicate the pressure setting of the valve assembly. For example, in some embodiments, the masking element can selectively cover at least part of the radio frequency tag according to the pressure setting of the valve assembly, which can change a characteristic of the radio frequency tag's response to the wireless signal.02-17-2011
20110245753APPARATUS AND METHOD FOR LOWERING INTRAOCULAR PRESSURE IN AN EYE - An eye mounted device configured to actively evacuate fluid from the anterior chamber of the eye to an exterior region or the sclera of the eye. The device employs a miniature pump powered by a photovoltaic cell which is mounted in the clear corneal tissue and which may be curved in the same shape as the eye. One or a combination of pressure sensors and timers determine the duration the device evacuates fluid from the user's eye.10-06-2011
20110130702FLOW CONTROL METHOD AND DEVICE - An arterio-venous graft (06-02-2011
20110130700Bypass device for influencing blood pressure - A bypass device for influencing blood pressure, including an implant with a volumetric chamber, having a connector or connecting means for connecting the volumetric chamber to a natural cardiovascular system, and having an adaptor or adaptation means, by which a change in volume of a volume of the volumetric chamber is enabled or effected upon a pressure change in the cardiovascular system or in the volumetric chamber. According to this invention, a change in volume in a lower pressure range between 50 mmHg and a pressure threshold value amounting to at least 100 mmHg amounts to at most 10 cm06-02-2011
20100191169METHOD AND APPARATUS FOR TREATING A CAROTID ARTERY - One disclosed embodiment comprises a method for treating lesions in the carotid artery of a mammalian body. The method comprises transcervical access and blocking of blood flow through the common carotid artery (with or without blocking of blood flow through the external carotid artery), shunting blood from the internal carotid artery and treating the lesion in the carotid artery.07-29-2010
20110105993Tools and Methods for Programming an Implantable Valve - Integrated tools for noninvasively reading and adjusting an implantable, magnetically adjustable valve, and methods of use are disclosed. The tools include magnetic or electronic reading of the valve, and magnetic or electromagnetic adjustment of the valve. In use, the tools are positioned above or in contact with the patient's skin, in proximity to the valve.05-05-2011
20110105994Tools and Methods for Programming an Implantable Valve - Integrated tools for noninvasively reading and adjusting an implantable, magnetically adjustable valve, and methods of use are disclosed. The tools include magnetic or electronic reading of the valve, and magnetic or electromagnetic adjustment of the valve. In use, the tools are positioned above or in contact with the patient's skin, in proximity to the valve.05-05-2011
20090326432OCULAR IMPLANT - The present invention relates to an ocular implant, particularly a glaucoma stent.12-31-2009
20100010416GLAUCOMA TREATMENT DEVICE - 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.01-14-2010
20110178454Methods And Devices For Performing Gastroplasty - A gastroplasty method involves a staple line that terminates prior to reaching the gastroesophageal junction such that the bypassed portion of the stomach does not require resection. Additionally, bougies are taught that assist a physician in following the improved staple line of the present invention.07-21-2011
20110098630Methods And Devices For Anchoring A Gastroenterologic Sleeve - A gastroenterologic sleeve is anchored within the digestive tract, without tissue-puncturing mechanisms, by providing anchoring mechanisms that utilize the inherent shape of the stomach to prevent sleeve migration. In at least two embodiments, the anchoring mechanism expands to conform to the interior stomach walls. In other embodiments, internal pessary rings are held in place at the gastroesophageal junction by an external band. A delivery device is provided for implanting the various device transesophageally.04-28-2011
20110071459Power Saving Glaucoma Drainage Device - A glaucoma drainage device has an active valve configured to be located between an anterior chamber of an eye and a drainage location, a power source coupled to the active valve, and a controller coupled to the power source. A first pressure sensor is located in fluid communication with the anterior chamber, a second pressure sensor is located in the drainage location, and a third pressure sensor located remotely from the first and second pressure sensors. The controller reads the first, second, and third pressure sensors once during a period of time and adjusts the active valve to control intraocular pressure.03-24-2011
20110071458Glaucoma Drainage Device with Pump - A glaucoma drainage device may comprise a main drainage tube with a first end configured to be located in an anterior chamber of an eye and a second end configured to be located in a drainage location. A bypass drainage tube is fluidly coupled to and in parallel with the main drainage tube. A pump is in communication with the bypass drainage tube. The pump comprises a first driver and a first flexible membrane enclosing a first chamber. A first check valve is located upstream of the pump, and a second check valve is located downstream of the pump. An active valve is located upstream of the first check valve. The active valve comprises a second driver and a second flexible membrane enclosing a second chamber. A third check valve is located between the active valve and the second end of the main drainage tube. A volume of the first chamber is changed to pump fluid from the anterior chamber to the drainage location.03-24-2011
20110071457Method and apparatus for controlling intracranial pressure - A regulator system and method are provided for controlling intracranial pressure (ICP) of a patient in a manner that permits continuous control of ICP to keep it on any clinically desired path over time. A nonlinear feedback control scheme for a CSF drainage valve embodies a relationship between intracranial pressure and infusion rate of CSF and an ICP state linearizer to keep the ICP on the clinically desired path over time.03-24-2011
20110071456Lumen Clearing Valve For Glaucoma Drainage Device - A glaucoma drainage device has a housing with an open outlet end. A tube is in fluid communication with the housing. An actuator is located in the housing. An actuation arm is located at least partially in the housing and is coupled to the actuator. A tapered arm is rigidly coupled to the actuation arm. A needle head is located opposite the tapered arm. A tapered end of the tapered arm is located at least partially in the tube. When the tapered arm is moved, it can clear an obstruction from the tube. When the needle head is moved, it can disperse aqueous or clear fibers from the drainage location.03-24-2011
20120302937Programmable Device For Treating Over Drainage Due To Siphonic Effects In Hydrocephalus Shunt Systems - A valve assembly for adjusting the flow of bodily fluid from one part of a human body to another includes a body portion having a flow inlet and a flow outlet. A valve located in a flow path from the inlet to the outlet includes a valve seat and a closing element that is adapted to seal against the valve seat. A carrier element is mounted within the body portion and has a plurality of pockets. Each pocket houses a respective preload element, wherein each preload element is of a different weight from that of the other preload elements. The carrier element is moveable relative to the body portion so as to align a preload element of a desired weight with the closing element. The self weight of the chosen preload element applies a preload to the closing element dependent on the orientation of the valve assembly.11-29-2012
20120302938DRAINAGE SYSTEMS FOR EXCESS BODY FLUIDS AND ASSOCIATED METHODS - Drainage systems for excess body fluids and associated methods are disclosed herein. A body fluid drainage system in accordance with an embodiment of the present technology, for example, can include a catheter having an exterior surface, a proximal portion, and a distal portion. The body fluid drainage system can further include a valve device, a pressure sensor, and a controller operatively coupled to the valve device and the pressure sensor. The valve device can include an actuator positioned over the exterior surface of the catheter. The actuator is movable between an open position that allows body fluid flow through the catheter, a closed position that at least substantially obstructs the body fluid flow through the catheter, and intermediate positions that partially obstruct the body fluid flow through the catheter. The controller can change the position of the actuator in response to a predetermined condition of the pressure sensor.11-29-2012
20120277657BICORPORAL PARTIALLY SUBCUTANEOUS POSITIVE DISPLACEMENT PUMP - The present general inventive concept relates to systems and methods for moving a predetermined volume of fluid from one location within a subject's body to another location within a subject's body. The system includes an internal and an external component with no physical connection between. The external component includes the power and control systems while the internal component includes a positive displacement fluid pump that restricts backflow and displaces a controlled volume of fluid over time or per cycle.11-01-2012
20110178455IMPLANTABLE FLUID MANAGEMENT SYSTEM FOR THE REMOVAL OF EXCESS FLUID - An implantable fluid management device, designed to drain excess fluid from a variety of locations in a living host into a second location within the host, such as the bladder of that host. The device may be used to treat ascites, chronic pericardial effusions, normopressure hydrocephalus, hydrocephalus, pulmonary edema, or any fluid collection within the body of a human, or a non-human mammal.07-21-2011
20090054827SYSTEM FOR USE IN DRAINING FLUID FROM A BRAIN OR SPINAL FLUID CAVITY UNTO ANOTHER BODY CAVITY OF A HUMAN BEING - This invention describes a method for processing pressure signals derivable from locations inside or outside a human or animal body or body cavity. Different aspects of the invention relate to a method for optimal differentiating between cardiac beat- and artifact-induced pressure waves and a method for obtaining new and improved information from said pressure signals. In particular, this invention describes a system for draining fluid from a brain or spinal fluid cavity according to the inventive method of processing pressure signals.02-26-2009
20080214983PRESSURE SENSING VALVE - A pressure sensing catheter having a pressure sensor and an antenna that is coupled to the pressure sensor, e.g., by a connector, are provided. The pressure sensor can be adapted to measure a pressure surrounding the catheter, and the antenna can be adapted to telemetrically communicate the measured pressure to an external device. In an exemplary embodiment, the antenna, pressure sensor, and/or connector are hermetically sealed, e.g., by the catheter and/or a coating, to prevent the antenna, pressure sensor, and connector from coming into contact with fluid, thereby allowing the catheter to be permanently implanted or otherwise used for long term use. Exemplary methods for manufacturing and using pressure sensing catheters are also provided.09-04-2008
20110054382CEREBROSPINAL FLUID EVALUATION SYSTEM HAVING THERMAL FLOW AND FLOW RATE MEASUREMENT PAD USING A PLURALITY OF CONTROL SENSORS - A method and device for testing for the presence, absence and/or rate of flow in a shunt tubing implanted under the skin by using a measurement pad having a plurality of temperature sensors, one of which is aligned with the shunt and the other sensors being symmetrically displaced on either side of the first temperature sensor in a direction transverse to the shunt tubing. These “outer” temperature sensors act as control temperature sensors. A temperature source, e.g., a cooling agent, positioned within an insulated enclosure, is then applied at a predetermined location on the measurement pad that is insulated from the temperature sensors. The movement of this temperature “pulse” is detected by the shunt-aligned temperature sensor via the shunt tubing as the CSF carries the temperature pulse while the control sensors detect the pulse via convection through the skin. The temperature data from these sensors are provided to a CSF analyzer that determines a CSF shunt flow status or flow rate.03-03-2011
20110118650METHOD AND APPARATUS FOR TREATING OBESITY AND CONTROLLING WEIGHT GAIN AND ABSORPTION OF GLUCOSE IN MAMMALS - The present invention includes an endoluminal sleeve having a stomach sleeve portion, an antral sleeve portion, and an intestine sleeve portion. The endoluminal sleeve includes a flexible core layer which is formed from a self-expanding material. The flexible core layer in the stomach sleeve portion can self expand to grip the stomach. The antral sleeve is located in the pyloric antrum and is connected to the stomach sleeve portion and the intestine sleeve portion. The intestine sleeve portion is connected to the antral sleeve through a junction. The junction contains non-self-expanding material allowing the pyloric sphincter to properly function. The intestine sleeve portion is located in the small intestines. The intestine sleeve portion can have fenestrations, roots, a nutrient delivery layer, a nutrient delivery cover, an outer shell with a plurality of holes, and/or a semi-porous skin for nutrient delivery to the small intestines.05-19-2011
20110118651METHOD AND APPARATUS FOR EFFECTING A PERCUTANEOUS AORTIC VALVE BYPASS - A method for performing a percutaneous valve bypass, the method comprising: 05-19-2011
20100305493Device for Controlling the Rate of Flow of a Fluid12-02-2010
20100305492Cerebrospinal Fluid Purification System - The present invention provides methods and systems for conditioning cerebrospinal fluid (CSF). The methods provide for efficiently removing target compounds from CSF. The systems provide for a multilumen flow path and exchange of a majority volume portion of CSF in the CSF space. The removal and/or delivery of specific compounds can be tailored to the pathology of the specific disease. The removal is targeted and specific, for example, through the use of specific size-exclusion thresholds, antibodies against specific toxins, and other chromatographic techniques, as well as delivery and/or removal of targeted therapeutic agents. The invention finds use as a diagnostic, therapeutic and drug delivery platform for a variety of diseases affecting the CNS by accessing the CSF space. Exemplified disease conditions treatable by the present CSF processing systems and methods include, but are not limited to: Cerebral Vasospasm, Guillain Bane Syndrome, illustrating multi-lumen lumbar approach Alzheimer's, Parkinson's, Huntington's, Multiple Sclerosis, Amyotrophic Lateral Sclerosis, Spinal Cord Injury, Traumatic Brain Injury, Stroke, Cancer affecting the brain or spinal cord, Prion disease, Encephalitis from various causes, Meningitis from various causes, diseases secondary to enzymatic or metabolic imbalances, Biological Warfare, etc. For the first time, the present invention offers patients a disease-modifying, disruptive technology treatment platform that addresses the known disease pathogenesis of a number of neurologic conditions to which there are presently limited and ineffective treatment options.12-02-2010
20110130701FLOW CONTROL METHOD AND DEVICE - An arterio-venous graft (06-02-2011
20100191168ENDOVASCULAR CEREBROSPINAL FLUID SHUNT - An implantable shunt device for draining cerebrospinal fluid from a patient's subarachnoid space. The device includes a shunt having opposed first and second ends. A one-way valve is located at the first end of the shunt. A helical tip is disposed at the second end. The helical tip is constructed to penetrate a sinus wall of the patient. Upon implantation, a hollow passageway extends between the helical tip and one-way valve such that fluid can be drained through the helical 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 and the skin incisions required with current shunt devices. The device also allows for more physiologic drainage of cerebrospinal fluid since the device is shunting cerebrospinal fluid into the same cerebral venous system that occurs naturally in normal people.07-29-2010
20110190684METHOD AND APPARATUS FOR REDUCING OBESITY - Method and apparatus for treatment of morbid obesity by placement of a series of flow reduction elements in the small intestine to induce satiety are disclosed. The flow reduction elements restrict the movement of partially digested food and reduce the flow rate through the small intestine which causes the emptying of the stomach and the duodenum to occur slower. The flow reduction elements are attached to an elongated tube and are constructed from various shapes and configurations. The flow reduction elements may be inflated with fluid or may be constructed from self-expandable materials. The device is anchored in the antrum of the stomach with an anchoring member. The transoral gastric device can be inserted with a delivery catheter through the working lumen of an endoscope or alongside an endoscope and may be removed with the aid of an endoscope if desired.08-04-2011
20100280431METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW - Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.11-04-2010
20110218481DEVICE AND METHOD FOR CONTROLLING IN-VIVO PRESSURE - A differential pressure regulating device is provided for controlling in-vivo pressure in a body, and in particularly in a heart. The device may include a shunt being positioned between two or more lumens in a body, to enable fluids to flow between the lumens, and an adjustable flow regulation mechanism being configured to selectively cover an opening of the shunt, to regulate the flow of fluid through the shunt in relation to a pressure difference between the body lumens. In some embodiments a control mechanism coupled to the adjustable flow regulation mechanism may be provided, to remotely activate the adjustable flow regulation mechanism.09-08-2011
20110218480DEVICE AND METHOD FOR CONTROLLING IN-VIVO PRESSURE - A differential pressure regulating device is provided for controlling in-vivo pressure in a body, and in particularly in a heart. The device may include a shunt being positioned between two or more lumens in a body, to enable fluids to flow between the lumens, and an adjustable flow regulation mechanism being configured to selectively cover an opening of the shunt, to regulate the flow of fluid through the shunt in relation to a pressure difference between the body lumens. In some embodiments a control mechanism coupled to the adjustable flow regulation mechanism may be provided, to remotely activate the adjustable flow regulation mechanism.09-08-2011
20110218479DEVICE AND METHOD FOR CONTROLLING IN-VIVO PRESSURE - A differential pressure regulating device is provided for controlling in-vivo pressure in a body, and in particularly in a heart. The device may include a shunt being positioned between two or more lumens in a body, to enable fluids to flow between the lumens, and an adjustable flow regulation mechanism being configured to selectively cover an opening of the shunt, to regulate the flow of fluid through the shunt in relation to a pressure difference between the body lumens. In some embodiments a control mechanism coupled to the adjustable flow regulation mechanism may be provided, to remotely activate the adjustable flow regulation mechanism.09-08-2011
20110218477Methods and apparatus for reducing localized circulatory system pressure - The present invention is thus directed to methods and apparatus for decreasing pressure in a first portion of a vessel of the cardiac structure of a patient by implanting a shunt communicating with an area outside said first portion, whereby a volume of blood sufficient to reduce pressure in said first portion is released. Preferably, the first portion comprises the left ventricle and the pressure reduced is the end diastolic pressure, which is accomplished by having the shunt communicate with the left ventricle so a small volume of blood is released from the left ventricle to reduce the end diastolic pressure. Most preferably, the shunt selectively permits flow when a pressure differential between the left ventricle and another chamber of a heart above a threshold pressure, whereby shunting is prevented during left ventricular systole, or, alternatively, selectively permits flow when a pressure differential between the left ventricle and another chamber of a heart is between a lower threshold and a higher threshold, whereby shunting is again prevented during left ventricular systole. In certain embodiments a semi-passive check-valve is controlled and actuated by an external signal, either using a signal generated by an intra-corporeal electrical battery or an externally coupled energy source. In certain embodiments, the shunt has a pump with an input connected to the left ventricle, or other portion with excessive pressure, and an output connected to a volume of lower pressure. The preferred method of implanting the shunt to effect the present invention is by deploying a tubular element having two ends and a tissue affixation element disposed at each of said ends via a catheter, preferably, the fixation element is a shape retaining metallic material that returns to its original shape as part of the retention aspect of its function. In preferred embodiments of the apparatus, the tubular element is comprised of a biologically inert non-metallic material.09-08-2011
20130012863RESTRICTIVE AND/OR OBSTRUCTIVE IMPLANT SYSTEM FOR INDUCING WEIGHT LOSS - The present application describes an implant system useable for positioning an implant device such as a device useful for restricting passage of ingested food into the stomach. In one embodiment, the disclosed system includes a plurality of anchors that may be coupled to tissue within the stomach, or to a tissue tunnel formed by plicating stomach wall tissue. The anchor includes a loop. During use, the implant device is inserted through the loop and expanded such that it retains its position within the loop until removed. Instruments for implanting and explanting the implant device are also described.01-10-2013
20110306916DEVICE AND METHOD FOR REGULATING PRESSURE IN A HEART CHAMBER - A device for regulating blood pressure in a heart chamber is provided. The device includes a shunt positionable within a septum of the heart. The shunt is designed for enabling blood flow between a left heart chamber and a right heart chamber, wherein the flow rate capacity of the device is mostly a function of pressure in the left heart chamber.12-15-2011
20120046595IMPLANTABLE ADJUSTABLE VALVE - A valve unit capable of being implanted in a patient and having adjustable performance settings, such as pressure settings and/or flow control, to regulate passage of a bodily fluid. A casing defines a port for the bodily fluid, and a valve mechanism positioned at the port includes a movable valve member. The valve unit further includes a rotor disposed at a first location in the casing and having an axle which turns about an axis of rotation. The rotor defines a plurality of arcuate, radially flat cam surfaces. Each cam surface occupies an arc about the axis of rotation. A spring arm unit is disposed at a second location in the casing having a cam follower arm in slidable contact with the cam surfaces of the rotor and having a resilient spring element applying a closing effect with the movable valve member to establish a performance setting for the valve unit. Sufficient rotation of the rotor to change the cam surface in contact with the cam follower alters the closing effect with which the valve member moves relative to the port and thereby alters the performance setting of the valve unit.02-23-2012
20120046596PROGRAMMABLE SHUNT WITH ELECTROMECHANICAL VALVE ACTUATOR - Devices and methods for regulating and directing bodily fluids from one region of a patient to another region are disclosed. In general, an apparatus is provided that can include an implantable shunt system and a system controller. The implantable shunt system can have an adjustable valve for regulating the flow of fluid, a sensor element for measuring a physiological characteristic of a patient, and an electromechanical valve actuator that can be adapted to adjust a resistance of the valve. The implantable shunt system can be in electrical communication with the system controller. The system controller can generally be adapted to receive a physiological characteristic of the patient and operate the electromechanical valve actuator to adjust a resistance of the valve. The apparatus can also include an external programming device that is in communication with the system controller.02-23-2012
20120004590SATIATION POUCHES AND METHODS OF USE - A method for controlling appetite by means of a satiation device is disclosed. The device, which includes a flexible webbing defining proximal and distal openings and a biasing structure, is attached to the patient's stomach with the proximal opening positioned adjacent and below the patient's gastro-esophageal junction. The biasing structure imparts pressure against the wall of the patient's stomach adjacent the gastro-esophageal junction.01-05-2012
20120209165APPARATUS AND METHODS FOR TREATING INTRACORPOREAL FLUID ACCUMULATION - A fluid management system for the treatment of ascites, pleural effusion or pericardial effusion is provided including an implantable device including a pump, control circuitry, battery and transceiver; a charging and communication system configured to periodically charge the battery and communicate with the implantable device to retrieve performance data; and monitoring and control software, suitable for use with conventional personal computers, for configuring and controlling operation of the implantable device and charging and communication system. The implantable device includes a number of features that provide automated movement of fluid to the bladder with reduced risk of clogging, with no patient involvement other than occasional recharging of the battery of the implantable device. The monitoring and control software is available only to the treating physician, such that the physician interacts with the implantable device via the charging and communication system.08-16-2012
20120310139ADJUSTABLE VALVE SETTING WITH MOTOR CONTROL - An implantable medical device is disclosed that includes a valve body and a valve rotor adjustable with respect to the valve body. A tool can be utilized to determine and control a position of the valve rotor with respect to the valve body. The tool can include a valve body position reader, a valve rotor position reader and a valve rotor position controller to determine a valve setting for the device and adjust the valve setting as desired.12-06-2012
20120310138GASTROINTESTINAL IMPLANT DEVICE AND DELIVERY SYSTEM THEREFOR - A delivery system comprises a delivery catheter with a distal capsule which contains a scaffold, a valve and a sleeve in the retracted configuration. The delivery system includes a proximal expandable element provided by an inflatable proximal balloon and a distal expandable element provided by a distal balloon. The proximal balloon provides a temporary seal at the proximal side of the valve. The distal balloon provides a temporary distal seal between a distal olive and a distal end of the sleeve. An inflation fluid is introduced into the sleeve between the proximal and distal balloons the fluid causes the sleeve to expand axially to the expanded deployed configuration. When the sleeve is in the extended deployed configuration the distal balloon is deflated, allowing the olive to detach and travel distally. The rest of the delivery system can then be withdrawn proximally, leaving the implant device in situ.12-06-2012
20120010556Long-Term Implantable Arterio-Venous Shunt Device - A long-term implantable arterio-venous shunt device is provided that can be used as a therapeutic method. The shunt device is implanted between an artery and a vein, preferably between the aorta and the inferior vena cava. The shunt device decreases the systemic vascular resistance and allows a blood flow rate through the shunt device of at least 5 ml/min after the implantation. The blood flow rate could be controlled either via an open loop or a closed loop control means. The shunt device could also be a self-adjustable shunt device to self-adjust its structure to control the blood flow rate through its lumen. Based on the effects of the shunt device to the respiratory, cardiac and circulatory system, the implantable shunt device could be beneficial as a therapy to patients with problems or conditions related to these systems.01-12-2012
20110166496METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW - Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.07-07-2011
20110166497METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW - Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.07-07-2011
20110166495CEREBROSPINAL FLUID DRAINAGE - A cerebrospinal fluid drainage. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.07-07-2011
20110082408METHOD AND APPARATUS FOR TREATING A CAROTID ARTERY - One disclosed embodiment comprises a method for treating lesions in the carotid artery of a mammalian body. The method comprises transcervical access and blocking of blood flow through the common carotid artery (with or without blocking of blood flow through the external carotid artery), shunting blood from the internal carotid artery and treating the lesion in the carotid artery.04-07-2011
20120059305ARTERIOVENOUS SHUNT WITH INTEGRATED SURVEILLANCE SYSTEM - A hemodialytic angioacess device for implantation in dialysis patients, comprising an arteriovenous (AV) shunt, anastomotic valves that connect the AV shunt to blood vessels, a valve control system and an integrated surveillance system that measures flow conditions in the blood vessels at the AV shunt, preferably when the valves are closed and the patient is not undergoing dialysis treatment. The flow condition data, which may include data representing the flow rate, pressure, volume and velocity of blood flowing through the vessels, is stored in a memory and transmitted to a health care provider or technician on demand. The data can be used to calculate and monitor important physiological parameters, such as compliance and resistance, for the blood vessels, and help detect and identify dangerous conditions, such as turbulence and stasis, which can contribute to AV shunt failure, vessel injury and other serious complications for the patient.03-08-2012
20110092879BARIATRIC DEVICE AND METHOD - A bariatric device and method of causing at least partial satiety includes a body that is adapted to be positioned at i) an abdominal portion of the esophagus and/or ii) a proximal cardiac portion of the stomach. The body has a wall defining a lumen. The wall is configured to generally conform to the shape and size of i) the abdominal portion of the esophagus and/or ii) the proximal cardiac portion of the stomach. A force is exerted with the wall at i) the abdominal portion of the esophagus and/or (ii) the proximal cardiac portion of the stomach thereby influencing a neurohormonal feedback mechanism of the patient to cause at least partial satiety by augmenting fullness caused by food and simulating fullness in the absence of food. The method further includes adjusting the force exerted with the wall.04-21-2011
20110066098NON-INVASIVELY ADJUSTABLE DRAINAGE DEVICE - The device comprises at least an inlet tube for the passage of fluid to be drained, said tube being connected to a chamber wherein said chamber comprises rotating means for adjusting the flow rate in said tube.03-17-2011
20110105992Tools and methods for programming an implantable valve - Integrated tools for noninvasively reading and adjusting an implantable, magnetically adjustable valve, and methods of use are disclosed. The tools include magnetic or electronic reading of the valve, and magnetic or electromagnetic adjustment of the valve. In use, the tools are positioned above or in contact with the patient's skin, in proximity to the valve.05-05-2011
20110105991Tools and methods for programming an implantable valve - Integrated tools for noninvasively reading and adjusting an implantable, magnetically adjustable valve, and methods of use are disclosed. The tools include magnetic or electronic reading of the valve, and magnetic or electromagnetic adjustment of the valve. In use, the tools are positioned above or in contact with the patient's skin, in proximity to the valve.05-05-2011
20090131851FILTER ASSEMBLY WITH MICROFABRICATED FILTER ELEMENT - Various embodiments of MEMS flow modules that both filter and regulate pressure are disclosed. One such MEMS flow module (05-21-2009
20090131850Method and apparatus for removing harmful proteins from a mammalian's ventricular cerebrospinal fluid - A method and apparatus for removing harmful organic anions and proteins from a mammalian's ventricular cerebrospinal fluid in the treatment of brain disorders. One embodiment comprises using an implanted pump and filter system in conjunction with a drug or enzyme to clean and filter a patient's cerebrospinal fluid.05-21-2009
20090131849Heart regurgitation method and apparatus - A regurgitation implant may comprise a conduit or straw which may be coupled to a shaft. The shaft may be coupled to at least one anchor portion configured to couple the regurgitation implant to native coronary tissue. At least a portion of the conduit may be configured to be disposed proximate a mitral valve such that the regurgitation implant may interact and/or cooperate with at least a portion of the native mitral valve to induce a controlled amount of regurgitation through the conduit and therefore through the mitral valve. The regurgitation through the conduit and the mitral valve may cause the heart to dilute in a manner that is generally consistent with advanced disease of the heart. The amount of regurgitation may therefore be adjusted depending on the desired condition of the heart.05-21-2009
20120232462IMPLANTABLE HYDROCEPHALUS SHUNT SYSTEM - An implantable hydrocephalus shunt system. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(09-13-2012
20120232461SYSTEMS AND METHODS OF CONTROLLING FLOW OF BODILY FLUIDS - Systems and methods to regulate flow of bodily fluids, such as cerebrospinal fluid (CSF), including a fluid chamber, an inlet port to receive the bodily fluid into the fluid chamber, an outlet port to remove the bodily fluid from the chamber, and a pressure element to regulate the amount of fluid flowing from the inlet port to the outlet port based on a pressure of the bodily fluid against an absolute pressure reference.09-13-2012
20100241055Systems, devices, and methods including infection-fighting and monitoring shunts - Systems, devices, methods, and compositions are described for providing an actively controllable shunt configured to, for example, monitor, treat, or prevent an infection.09-23-2010
20100241054Systems, devices, and methods including infection-fighting and monitoring shunts - Systems, devices, methods, and compositions are described for providing an actively controllable shunt configured to, for example, monitor, treat, or prevent an infection.09-23-2010
20100241053Systems, devices, and methods including infection-fighting and monitoring shunts - Systems, devices, methods, and compositions are described for providing an actively controllable shunt configured to, for example, monitor, treat, or prevent an infection.09-23-2010
20100241052Systems, devices, and methods including infection-fighting and monitoring shunts - Systems, devices, methods, and compositions are described for providing an actively controllable shunt configured to, for example, monitor, treat, or prevent an infection.09-23-2010
20100241051Systems, devices, and methods including infection-fighting and monitoring shunts - Systems, devices, methods, and compositions are described for providing an actively controllable shunt configured to, for example, monitor, treat, or prevent an infection.09-23-2010
20120130301INTRA-ATRIAL IMPLANTS TO DIRECTIONALLY SHUNT BLOOD - Several unique intracardiac pressure vents, placement catheters, methods of placement and methods of treating heart failure are presented. The intracardiac pressure vents presented allow sufficient flow from the left atrium to the right atrium to relieve elevated left atrial pressure and resulting patient symptoms but also limit the amount of flow from the right atrium to the left atrium to minimize the potential for thrombus or other embolic material from entering the arterial circulation.05-24-2012
20120165723METHODS FOR IMPLANTING A SOFT GEL SHUNT IN THE SUPRACHOROIDAL SPACE - The invention generally relates to methods for implanting a soft gel shunt in the suprachoroidal space. In certain embodiments, methods of the invention involve inserting into the eye a hollow shaft configured to hold a soft gel intraocular shunt, deploying the soft gel shunt from the hollow shaft such that the shunt forms a passage from the anterior chamber of the eye to the suprachoroidal space of the eye, and withdrawing the hollow shaft from the eye.06-28-2012
20100241050Systems, devices, and methods including infection-fighting and monitoring shunts - Systems, devices, methods, and compositions are described for providing an actively controllable shunt configured to, for example, monitor, treat, or prevent an infection.09-23-2010
20100241049Systems, devices, and methods including infection-fighting and monitoring shunts - Systems, devices, methods, and compositions are described for providing an actively controllable shunt configured to, for example, monitor, treat, or prevent an infection.09-23-2010
20120316487METHOD OF TREATING COPD WITH ARTIFICIAL ARTERIO-VENOUS FISTULA AND FLOW MEDIATING SYSTEMS - 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.12-13-2012
20100298755DEVICES, SYSTEMS, AND METHODS TO TREAT HEART FAILURE HAVING AN IMPROVED FLOW-CONTROL MECHANISM - Several unique intra-cardiac pressure vents, placement catheters, methods of placement and methods of treating heart failure are presented. The intra-cardiac pressure vents presented remain partially open under normal intra-cardiac pressures to allow sufficient flow from the left atrium to the right atrium to enable the relief of elevated left atrial pressure and resulting patient symptoms, and also limit the amount of flow from the right atrium to the left atrium by closing when the pressure in the right atrium exceeds the pressure in the left atrium by a predetermined amount.11-25-2010
20120253259MODULAR GASTROINTESTINAL PROSTHESES - A modular system for therapy within a gastrointestinal system. The system includes anchoring or attachment functionality embodied in a low-profile implant technology and removable therapy components, which can be reversibly attached to these low-profile implants to accomplish various therapies. This modular design allows the physician to tailor the therapy to the patient's needs. The modular system has the potential to create conduits for diversion and/or restriction of food and organ secretions and to facilitate the treatment of metabolic disorders such as obesity and T2DM.10-04-2012
20120253258OCULAR SYSTEM WITH ANCHORING IMPLANT AND THERAPEUTIC AGENT - Ocular implants, delivery devices and methods for treating ocular disorders are disclosed. One method involves inserting an implant on one side of an eye. The implant has an anchor on a distal end portion and an outlet opening that is disposed proximal of the anchor. The implant is advanced across the eye to the other side of the eye. The anchor is inserted into eye tissue on the other side of the eye. A therapeutic agent is eluted using the implant.10-04-2012
20120226215Systems and Methods for Controlling Cerebrospinal Fluid in a Subject's Ventricular System - 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.09-06-2012
20120259265Regulated Gravity-Based Cerebral Spinal Fluid Drainage Device - Portable external gravity-based devices and methods for regulating cerebral spinal fluid drainage from brain, tissue or organs of a patient, and methods for reducing secondary brain injury to a patient by externally regulating the amount of gravity-based cerebral spinal fluid drainage from brain or spine are provided by this invention.10-11-2012
20120232460INTRALUMINAL SLEEVE WITH ACTIVE AGENTS - An intraluminal sleeve system is provided, which generally includes an intraluminal sleeve capable of dispensing an active agent to a patient, for example, a metabolic agent or satiety inducing agent. The intraluminal sleeve may be structured to contain the active agent and permit controlled release of the active agent to the patient while the intraluminal sleeve is positioned within the patient's intestine. Methods for treating obesity are also provided which include positioning an intraluminal sleeve in a patient's intestine, the intraluminal sleeve being capable of dispensing an active agent to the patient. In one embodiment, the active agent may be contained in a reservoir and dispensed to a portion of the patient's body.09-13-2012
20110004147SYSTEM AND METHODS FOR CONTROLLING RETROGRADE CAROTID ARTERIAL BLOOD FLOW - A retrograde flow system is configured for treating an artery. The system includes an arterial access device adapted to be introduced into an artery and receive blood flow from the artery. A shunt fluidly is connected to the arterial access device, wherein the shunt provides a pathway for blood to flow from the arterial access device to a return site. A flow control assembly is coupled to the shunt and is adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. A shut-off valve assembly automatically blocks fluid flow through the shunt in response to injection of the fluid into the arterial access device.01-06-2011
20120323160UPPER STOMACH GASTRIC IMPLANTS - A variety of passive intragastric implant devices for obesity treatment are disclosed. Such passive devices may not autonomously change shape, but instead react within the stomach to induce satiety. The devices may provide slowed entry into the stomach, thus reducing the intake capacity. Additionally, the devices may contact areas within the stomach, such as the cardia surrounding the esophageal sphincter, to stimulate satiety-inducing nerves. Some devices combine two or more of these satiety-inducing features. Methods of implant are disclosed including compressing the devices within a delivery tube and transorally advancing the devices through the esophagus to be deployed within the stomach. Removal of the devices occurs in the reverse. The implants are formed of materials that permit the implant to be compressed into a substantially linear transoral delivery configuration and that will resist degradation over a period of at least six months within the stomach.12-20-2012
20120323161Electrokinetic Actuator to Titrate Fluid Flow - An electrokinetic actuator for fluid flow titration including two chambers separated from one another by a porous dielectric disposed therebetween. A plurality of electrodes are disposed about a perimeter of the first and second chambers. Polar electrolyte disposed within the actuator is able to pass through the porous dielectric between the first and second chambers upon the application of an electric field or electric potential to the plural electrodes. A mechanical valve actuation mechanism connected to the second chamber allows for fine titration of fluid flow using electro-osmosis, including full-flow and/or complete cut-off. The polar electrolyte is isolated to prohibit intermixing with a fluid being titrated such as cerebrospinal fluid.12-20-2012
20110218478METHODS AND APPARATUS FOR REDUCING LOCALIZED CIRCULATORY SYSTEM PRESSURE - The present invention is thus directed to methods and apparatus for decreasing pressure in a first portion of a vessel of the cardiac structure of a patient by implanting a shunt communicating with an area outside said first portion, whereby a volume of blood sufficient to reduce pressure in said first portion is released. Preferably, the first portion comprises the left ventricle and the pressure reduced is the end diastolic pressure, which is accomplished by having the shunt communicate with the left ventricle so a small volume of blood is released from the left ventricle to reduce the end diastolic pressure. Most preferably, the shunt selectively permits flow when a pressure differential between the left ventricle and another chamber of a heart above a threshold pressure, whereby shunting is prevented during left ventricular systole, or, alternatively, selectively permits flow when a pressure differential between the left ventricle and another chamber of a heart is between a lower threshold and a higher threshold, whereby shunting is again prevented during left ventricular systole. In certain embodiments a semi-passive check-valve is controlled and actuated by an external signal, either using a signal generated by an intra-corporeal electrical battery or an externally coupled energy source. In certain embodiments, the shunt has a pump with an input connected to the left ventricle, or other portion with excessive pressure, and an output connected to a volume of lower pressure. The preferred method of implanting the shunt to effect the present invention is by deploying a tubular element having two ends and a tissue affixation element disposed at each of said ends via a catheter, preferably, the fixation element is a shape retaining metallic material that returns to its original shape as part of the retention aspect of its function. In preferred embodiments of the apparatus, the tubular element is comprised of a biologically inert non-metallic material.09-08-2011
20110160638Electrokinetic actuator to titrate fluid flow - An electrokinetic actuator for fluid flow titration including two chambers separated from one another by a porous dielectric disposed therebetween. A plurality of electrodes are disposed about a perimeter of the first and second chambers. Polar electrolyte disposed within the actuator is able to pass through the porous dielectric between the first and second chambers upon the application of an electric field or electric potential to the plural electrodes. A mechanical valve actuation mechanism connected to the second chamber allows for fine titration of fluid flow using electro-osmosis, including full-flow and/or complete cut-off. The polar electrolyte is isolated to prohibit intermixing with a fluid being titrated (such as cerebrospinal fluid).06-30-2011
20120089073GLAUCOMA DRAINAGE DEVICE AND USES THEREOF - In one aspect, the present invention provides an implant device for use in an eye with elevated intraocular pressure or glaucoma. In another aspect, the present invention provides a method for lowering intraocular pressure and/or treating a condition associated with elevated intraocular pressure using the implant device of the present invention.04-12-2012
20120089072SUBCONJUNCTIVAL CONFORMER DEVICE AND USES THEREOF - The present invention provides a device for use in an eye with elevated intraocular pressure or glaucoma, the device comprising a subconjunctival conformer shaped to conform to the eye wall and a fluid director that directs or facilitates the flow of intraocular fluid out of the eye and into the subconjunctival or retrobulbar space. The present invention also provides a method of lowering intraocular pressure using the device of the present invention.04-12-2012
20130018297DISTAL PERFUSION SHEATH - A distal perfusion sheath (DPS) is provided for cases where blood perfusion is needed for downstream arteries (distal) to the insertion point of the DPS within the target artery. The ability to provide distal perfusion with the DPS allows the DPS to be positioned in the target artery for long periods without causing lack of blood flow (ischemia) to an extremity that the target artery supplies. In embodiments, the DPS can still be used for surgical arterial access while allowing blood flow downstream. In addition, embodiments of the DPS configured with longer perfusion shunts can allow a contra-lateral extremity downstream to a large DPS to have blood flow while the sheath is in place.01-17-2013
20080228127UVEOSCLERAL SHUNT AND METHODS FOR IMPLANTING SAME - Devices and methods for treating intraocular pressure are disclosed. The devices include shunts for draining aqueous humor from the anterior chamber to the uveoscleral outflow pathway, including the supraciliary space and the suprachoroidal space. The shunts are preferably implanted by ab interno procedures.09-18-2008
20080228126Method of inhibiting disruption of the healing process in a physically modified stomach - Methods for inhibiting disruption of the healing process in a hollow body organ such as a stomach that is physically modified to restrict or reduce its food receiving capability are described. A physical boundary is used to form the stomach modification. An inlet portion of the modified stomach communicates with the esophagus and an outlet portion of the modified stomach communicates with the small intestine. A bypass shunt is inserted into the modified stomach alongside the physical boundary. The shunt enables food to pass from the esophagus through the shunt to the small intestine thereby reducing food and fluid contact with the physical boundary, and reducing pressure and tension forces at the physical boundary that establishes the stomach pouch. The shunt is inserted during the stomach modification procedure.09-18-2008
20130178783METHODS AND DEVICES FOR INTRA-ATRIAL SHUNTS HAVING ADJUSTABLE SIZES - Devices and methods for treating heart disease by normalizing elevated blood pressure in the left and right atria of a heart of a mammal are disclosed. Devices may include an adjustable hydraulic diameter shunt portion which can be manually adjusted in vivo. Methods are provided for adjusting the flow rate of the devices in vivo.07-11-2013
20130178784METHODS AND DEVICES FOR INTRA-ATRIAL SHUNTS HAVING ADJUSTABLE SIZES - Devices and methods for treating heart disease by normalizing elevated blood pressure in the left and right atria of a heart of a mammal are disclosed. Devices may include an adjustable hydraulic diameter shunt portion which can be manually adjusted in vivo. Methods are provided for adjusting the flow rate of the devices in vivo.07-11-2013
20080221501Systems and Methods for Reducing Intraocular Pressure - The present invention provides systems and methods for reducing intraocular pressure, thereby to treat glaucoma and other disorders. The systems of the present invention include a shunt insertable across the clear cornea and a delivery device for inserting the shunt in the transcorneal position. The shunt has a body with a head at one end and a foot at the opposite end, and a channel therethrough permitting the passage of aqueous humor from the anterior chamber to the external surface of the cornea. A removable filter is positioned within the channel to regulate aqueous humor outflow and to resist the incursion of microorganisms.09-11-2008
20080221500Implant having MEMS Flow Module with Movable, Flow-Controlling Baffle - Various embodiments of MEMS flow modules that may be disposed in a flow path (09-11-2008
20130184633METHODS, SYSTEMS, AND DEVICES FOR RESIZABLE INTRA-ATRIAL SHUNTS - Devices and methods for treating heart disease by normalizing elevated blood pressure in the left and right atria of a heart of a mammal are disclosed. Devices may include an adjustable hydraulic diameter and/or a removable and/or replaceable shunt portion. Devices may include absorbable materials, the absorption of which directly or indirectly causes alterations of the fluid flow capacities the devices.07-18-2013
20130144202Bubble-Driven IOP Control System - An intraocular pressure control system for implantation in an eye of a patient to provide drainage from an anterior chamber of the eye to a drainage location at the eye includes a drainage tube and a valve system arranged to control drainage flow between the anterior chamber and the drainage site, the valve system being configured to control fluid flow using an electrolysis process and closed loop feedback from pressure sensors able to determine: flow rate, TOP, bleb pressure, and internal valve pressure.06-06-2013
20120253260GASTROINTESTINAL PROSTHESES - A system for therapy within a gastrointestinal system includes anchoring or attachment functionality embodied in a low-profile implant technology and removable therapy components, which can be reversibly attached to these low-profile implants to accomplish various therapies. This design allows the physician to tailor the therapy to the patient's needs. The system has the potential to create conduits for diversion and/or restriction of food and organ secretions and to facilitate the treatment of metabolic disorders such as obesity and T2DM.10-04-2012
20130131576CATHETER ASSEMBLY FOR USE WITH SHUNT SYSTEMS AND METHOD OF USING SAME - A catheter assembly for inserting in a fluid filled space in a body includes a main body having a first end portion and a second end portion. The first end portion is positionable within the fluid filled space and the second end portion is adapted to extend outward from the fluid filled space when the first end portion is positioned within the fluid filled space. The catheter assembly also includes a catheter tip that is connected to the second end portion. The catheter tip includes a housing having a cavity defined therein. The catheter tip also includes a rotating element positioned within the cavity. The rotating element is configured to rotate within the cavity to facilitate movement of the first end portion of the main body within the fluid filled space.05-23-2013
20130096484IMPLANTABLE ADJUSTABLE VALVE - A valve unit capable of being implanted in a patient and having adjustable performance settings, such as pressure settings and/or flow control, to regulate passage of a bodily fluid. A casing defines a port for the bodily fluid, and a valve mechanism positioned at the port includes a movable valve member. The valve unit further includes a rotor disposed at a first location in the casing and having an axle which turns about an axis of rotation. The rotor defines a plurality of arcuate, radially flat cam surfaces. Each cam surface occupies an arc about the axis of rotation. A spring arm unit is disposed at a second location in the casing having a cam follower arm in slidable contact with the cam surfaces of the rotor and having a resilient spring element applying a closing effect with the movable valve member to establish a performance setting for the valve unit. Sufficient rotation of the rotor to change the cam surface in contact with the cam follower alters the closing effect with which the valve member moves relative to the port and thereby alters the performance setting of the valve unit.04-18-2013
20130096483Active Bimodal Valve System For Real-Time IOP Control - An IOP control system provides drainage from an anterior chamber of the eye to a drainage location at the eye. The system has a valve with an open flow position and a closed zero flow position. A sensor system includes a first sensor arranged to detect a first pressure representative of IOP. A controller receives data representing the detected pressure from the sensor system and compares the data to an upper pressure threshold and a lower pressure threshold to determine whether to change the state of the valve system in a bimodal fashion.04-18-2013
20110313341DEVICES, SYSTEMS, AND METHODS FOR ORGAN RETROPERFUSION - Devices, systems, and methods for organ retroperfusion. In at least one embodiment of a method of organ perfusion of the present disclosure, the method comprises the steps of positioning at least part of a first catheter having a cannula within an artery of a patient, the first catheter configured to permit arterial blood to flow therethrough and further configured to permit a portion of the arterial blood to flow through the cannula, positioning at least part of a second catheter within a vein of the patient at or near a target organ, the second catheter configured to receive some or all of the portion of the arterial blood, and connecting the cannula of the first catheter to a portion of the second catheter so that some or all of the portion of the arterial blood flowing through the cannula is provided into the vein to treat a condition or disease of the target organ.12-22-2011
20110275976 METHOD OF REGULATING CSF DRAINAGE - An implantable drainage device for draining the cerebro-spinal fluid of a patient, the device including: 11-10-2011
20120277658URETHRAL CATHETERLESS RADICAL PROSTATECTOMY - A method and device for facilitating the anastomotic healing of a patient after a radical prostatectomy surgical procedure, without a urethral catheter, comprising the steps of performing a radical prostatectomy, fixedly positioning a splinting element between the urethra and the bladder, across the urethral opening, placing the splinting element during the performing of the radical prostatectomy and prior to surgical closure. The fixed positioning is effected from a position within the bladder with anchoring the splinting element in position relative to the interior of the bladder, setting a separate urine drainage tube, and removing the splinting element, after anastomotic healing, with a retrieval element on the splinting element or with dissolving of the splinting element.11-01-2012
20130150775Multilayer Membrane Actuators - 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.06-13-2013
20130150773Glaucoma Active Pressure Regulation Shunt - In various embodiments, a glaucoma shunt may include a tube having an anterior portion (with an opening) and a posterior portion. The glaucoma shunt may include a valve, inside the tube, coupled to a drainage portion. The tube may be configured to couple to a first portion of an eye and the drainage portion may be configured to couple to a second portion of the eye. In some embodiments, the drainage portion may be configured to move the valve relative to the tube such that when the eye expands, the valve moves away from the opening in the anterior portion of the tube to increase fluid flow. The drainage portion may further be configured to move the valve relative to the tube such that when the eye contracts, the valve moves toward the opening in the anterior portion of the tube to decrease fluid flow.06-13-2013
20130150774Active Drainage Systems With Pressure-Driven Valves and Electronically-Driven Pump - An IOP control system for implantation in an eye of a patient is disclosed. The IOP control system includes a drainage tube configured to convey aqueous humor from an anterior chamber of an eye and includes a pressure-driven valve system in fluid communication with the drainage tube and configured to control flow rates of the aqueous humor. The valve system includes a plurality of pressure-driven valves arranged to operate in cooperation with each other. The IOP control system may include an electronic pump system to further regulate flow.06-13-2013
20130150776Glaucoma Drainage Devices Including Vario-Stable Valves and Associated Systems and Methods - Glaucoma drainage devices including vario-stable valves and associated systems and methods are disclosed. A glaucoma drainage device includes a drainage lumen and a valve system coupled to the drainage lumen to control the flow of fluid through the drainage lumen. The valve system includes an adjustable valve with a diaphragm that is in communication with the drainage lumen and is movable to occupy varying amounts of the drainage lumen. In some embodiments, the valve system is maintained in a desired position without the use of power such that power is only needed when changing a position of the adjustable valve.06-13-2013
20130150777Glaucoma Drainage Devices Including Vario-Stable Valves and Associated Systems and Methods - Glaucoma drainage devices including vario-stable valves and associated systems and methods are disclosed. A glaucoma drainage device includes a drainage lumen and a valve system coupled to the drainage lumen to control the flow of fluid through the drainage lumen. The valve system includes an adjustable valve with a diaphragm that is in communication with the drainage lumen and is movable to occupy varying amounts of the drainage lumen. In some embodiments, the valve system is maintained in a desired position without the use of power such that power is only needed when changing a position of the adjustable valve.06-13-2013
20130150778Separation of Gas and Liquid in Membrane Valves - A drainage device for implantation in an eye of a patient to treat an ocular condition is disclosed. The drainage device includes a housing, a multi-compartment flow control chamber, and a membrane. The housing includes an entrance port and an exit port connected by a fluid flow passageway. The membrane is disposed between the fluid flow passageway and the multi-compartment flow control chamber, which includes a first compartment and a second compartment in fluid communication with each other. The first and second compartments are structurally arranged to limit contact of gas with the membrane, which is disposed between the fluid flow passageway and first compartment. The membrane is configured to affect flow through the fluid flow passageway by deflecting in response to pressure in the flow control chamber.06-13-2013
20130150779Active Drainage Systems with Dual-Input Pressure-Driven Valves - A pressure-driven valve is disclosed. The valve includes a housing and a flow control portion disposed within the housing. The housing includes a fluid inlet and a fluid outlet. The flow control portion has a first side subject to fluid flow pressure in a fluid flow channel, and a second side subject to an outlet pressure representative of pressure at the fluid outlet. The flow control portion is deformable to increase and decrease flow through the fluid flow channel based on pressure differentials between the fluid flow pressure, a tube pressure, and the outlet pressure. In some instances, the flow control portion comprises a flow control membrane and a radially-fluctuating pressure tube attached to the periphery of the membrane.06-13-2013
20120259264SYSTEMS FOR INDUCING FLUID FLOW TO STIMULATE TISSUE GROWTH - Provided are apparatuses, systems, and methods for treating tissue at a tissue site in a mammal that includes a scaffold adapted to be disposed adjacent to the tissue site and to be fluidly coupled to a blood vessel of the mammal for receiving blood therefrom. Additionally, a scaffold is provided that includes a charged surface comprising a streaming potential.10-11-2012
20100312163IMPLANTABLE FLUID MOVEMENT DEVICE - An implantable fluid movement device is provided. The device is adapted to move body fluid from one part of the body of a patient to another part of the body and further adapted to secure the a tube end of the fluid movement device to a location inside a treated patient.12-09-2010
20130158465APPARATUS AND METHOD FOR TREATING OCCLUDED INFECTION COLLECTIONS OF THE DIGESTIVE TRACT - A device and method for treating an occluded infection collection along the digestive tract with a stent delivered to an appendix, diverticulum or other anatomical structure of the digestive tract. A device and method to remove an obstruction from an occluded infection collection along the digestive tract with an obstruction removal device delivered to an appendix, diverticulum or other anatomical structure of the digestive tract.06-20-2013
20130184632ARTERIAL-VENOUS SWITCHING - Methods and devices are provided for switching fluid flow through a body part, such as all or portions of an organ or extremity. In general, fluid inflow and fluid outflow vessels to at least a portion of a body part can be switched such that all fluid in at least a portion of the inflow and outflow vessels flows in an opposite direction. In other words, the fluid inflow vessel (or at least a portion thereof) becomes the fluid outflow vessel that receives fluid from a body part, and the fluid outflow vessel (or at least a portion thereof) becomes the fluid inflow vessel that delivers fluid to a body part.07-18-2013
20130184634METHODS AND DEVICES FOR INTRA-ATRIAL SHUNTS HAVING SELECTABLE FLOW RATES - Devices and methods for treating heart disease by normalizing elevated blood pressure in the left and right atria of a heart of a mammal are disclosed. The devices are adapted to permit fluid flow across the membrane in which the device is implanted at first rate, and at a second rate, wherein a difference between the first rate and the second rate is not solely dependent upon variations in blood pressure differential across the membrane due to the heart's pumping cycle.07-18-2013
20130184635OBESITY TREATMENT AND DEVICE - A method and apparatus are disclosed for treating obesity includes an artificial fistula created between gastrointestinal organs such as between the stomach and the colon. The method includes selecting an implant comprising a passageway having an internal lumen with an inlet end and an outlet end. The passageway is positioned passing through a first wall of first gastrointestinal organ (for example, passing through the wall of the stomach) and a second wall of a second gastrointestinal organ (for example, passing through the wall of the large intestine) with the inlet end disposed within an interior of the first gastrointestinal organ and with the outlet disposed within an interior of the second gastrointestinal organ.07-18-2013
20120289881System and Implantable Device for Treating Chronic Kidney Disease - An implantable dialysis device with a related medical system for intracorporeal dialysis and ultrafiltration of blood, and methods of use are described. The medical system includes an extracorporeal module, a cutaneous module, and an implantable module. Features of the implantable module facilitate delivery and flow of blood and dialysate through the medical system. A filter pack within the implantable module performs dialysis and ultrafiltration of blood. System cleansing is also described.11-15-2012
20120029414Transcutaneous telemetry of cerebrospinal fluid shunt programmable-valve pressure using near-infrared (NIR) light - An improvement for a programmable valve system of the type implanted in a patient and used to divert cerebrospinal fluid (CSF) from an intraventricular space to a terminus such as the peritoneal cavity. Such system includes means for establishing a flow path for the CSF to the terminus, which flow path includes a normally closed valve and means for adjusting the opening pressure of the valve in order to regulate the quantity of CSF diverted. The improvement enables an operator to be apprised of the actual opening pressure setting of the valve. A sensor is implantable at the patient and responds to the actual opening pressure setting, by generating an NIR telemetry signal indicative of the actual setting. This signal is transcutaneously transmitted through the skin of the patient to an external point. The telemetry signal is processed to produce observer intelligible data indicating the opening pressure setting of the valve.02-02-2012
20130197422FAILURE RESISTANT SHUNT - Drainage systems for excess body fluids and associated methods are disclosed herein. A body fluid drainage system in accordance with an embodiment of the present technology, for example, can include a catheter that has an exterior surface, a proximal portion, and a distal portion opposite the proximal portion. The body fluid drainage system can further include a valve device, a pressure sensor, and a controller operatively coupled to the valve device and the pressure sensor. The valve device can include an actuator positioned over the exterior surface of the catheter. The actuator is movable between an open position that allows body fluid flow through the catheter, a closed position that at least substantially obstructs the body fluid flow through the catheter, and intermediate positions that partially obstruct the body fluid flow through the catheter. The controller can change the position of the actuator in response to a predetermined condition of the pressure sensor.08-01-2013
20130197423METHODS AND APPARATUS FOR REDUCING LOCALIZED CIRCULATORY SYSTEM PRESSURE - The present invention is thus directed to methods and apparatus for decreasing pressure in a first portion of a vessel of the cardiac structure of a patient by implanting a shunt communicating with an area outside said first portion, whereby a volume of blood sufficient to reduce pressure in said first portion is released.08-01-2013
20130102951CSF SHUNT FLOW ENHANCER, METHOD FOR GENERATING CSF FLOW IN SHUNTS AND ASSESSMENT OF PARTIAL AND COMPLETE OCCLUSION OF CSF SHUNT SYSTEMS - An apparatus capable of generating flow in cerebrospinal fluid (CSF) shunt systems by vibrating the shunt, tubing or shunt valve dome, or applying cyclical pressure to the various parts of the shunt system. A method of generating flow and method of using the apparatus in shunt patency assessment, for example, hydraulic resistance assessment, is also disclosed. The apparatus allows, in conjunction with a thermal dilution method or radionuclide method, a quick CSF shunt patency assessment based upon CSF shunt resistance and not upon CSF flow or intracranial pressure (ICP) separately. This provides a more objective measure of shunt obstruction compared to other methods. Furthermore, the apparatus can be used to enhance flow in shunts, identify partial occlusion before symptoms occur, differentiate between patent, partially-occluded and occluded shunts. The apparatus can be used to generate flow in shunts if there is a need to lower ICP or move drugs administered via an injection chamber or a shunt dome.04-25-2013
20130204176Arteriovenous Shunt Having a Moveable Valve - An arteriovenous shunt assembly including a shunt having a hollow bore between open first and second ends thereof and a valve slidably disposed through the hollow bore. The valve includes means for retaining the valve in a closed position or in any of various selected open positions that provide corresponding different rates of blood flow through the shunt assembly. In some embodiments, the AV shunt assembly is self-expandable from a collapsed tow-profile configuration employed during transluminal delivery. The valve position in the hollow bore may be adjusted in vivo by inflating a catheter balloon in a blood vessel to bear against an end of the valve. Methods for using the shunt assembly are also disclosed.08-08-2013
20130204177Active Drainage Systems with Dual-Input Pressure-Driven Values - A pressure-driven valve is disclosed. The valve includes a housing, a fluid flow channel, and a deflectable portion. The housing comprises a fluid inlet and a fluid outlet. The fluid flow channel extends between the fluid inlet and the fluid outlet. The deflectable portion is disposed within the housing, and defines a portion of the fluid flow channel. The deflectable portion is configured to deflect to increase and decrease a size of the fluid flow channel to regulate fluid flow from the fluid inlet to the fluid outlet. The deflectable portion is disposed and arranged to deflect as a result of pressure differentials between a reference pressure, a fluid flow channel pressure, and an outlet pressure representative of fluid pressure at the fluid outlet.08-08-2013
20120095384STOMACH-SPANNING GASTRIC IMPLANTS - A variety of passive intragastric implant devices for obesity treatment are disclosed. Such passive implants do not autonomously change shape, but instead react within the stomach to induce satiety. The implants may take up volume within the stomach, thus reducing the digestive capacity. Additionally, the implants may contact areas within the stomach, such as the cardia surrounding the esophageal sphincter, to stimulate satiety-inducing nerves. Also, a number of implants slow gastric emptying by blocking or otherwise impeding flow through the pyloric sphincter. Other implants delay digestion by providing a duodenal sleeve. A number of implants combine two or more of these satiety-inducing features. Methods of implant are disclosed including compressing the implants within a delivery tube and transorally advancing the implants through the esophagus to be deployed within the stomach. Removal of the implants occurs in the reverse.04-19-2012
20130211311Pressure-Driven Membrane Valve for Pressure Control System - A control valve for a fluidic system is disclosed. The control valve comprises a housing and a flow control membrane is disclosed. The flow control membrane is anchored within the housing to form a reference chamber on a first side of the membrane and a fluid flow channel on a second opposing side of the membrane. The fluid flow channel selectively opens and closes to permit fluid to flow from the inlet to the outlet, and the membrane is configured to control flow through the channel from the inlet to the outlet by deflecting in response to pressure differentials of the reference chamber pressure and the fluid flow channel pressure acting across the membrane.08-15-2013
20130211312Prefilled Ocular Implants and Methods - A drainage device for implantation in an eye of a patient to treat an ocular condition includes a first tube configured to extend into an anterior chamber of the eye and convey aqueous humor from the anterior chamber. An exit portion is in fluid communication with the distal end portion. A passage extends between the distal portion of the first tube and the exit portion, with a liquid disposed in the passage. The implant may include a first seal associated with the distal end portion and a second seal associated with the exit portion to prevent drainage of the liquid through the exit portion. The implant may include an implant body disposed between the distal end portion and the exit portion, the passage extending through the implant body. The implant body may comprise a fluid-sensitive component in fluid communication with the passage that may be formed of a flexible membrane.08-15-2013
20130211313Corrugated Membrane Actuators - An IOP control valve is disclosed. The IOP control valve comprises a corrugated membrane and a housing including a fluid inlet and a fluid outlet. The corrugated membrane is anchored within the housing to form a reference chamber on a first side of the corrugated membrane and a fluid flow channel on a second opposing side of the membrane. The reference chamber has a reference chamber pressure representative of atmospheric pressure. The fluid flow channel can selectively increase and decrease in size to permit fluid to flow from the fluid inlet to the fluid outlet. The corrugated membrane is configured to affect flow through the fluid flow channel from the fluid inlet to the fluid outlet by deflecting in response to pressure differentials of the reference chamber pressure and the fluid flow channel pressure acting on the opposing sides of the corrugated membrane.08-15-2013
20130211314GLAUCOMA VALVE, A CASING FOR CONTAINING A GLAUCOMA VALVE, AND A GLAUCOMA DRAINAGE DEVICE COMPRISING THE VALVE AND/OR THE CASING - Various embodiments of the invention relate to a glaucoma valve, a casing for containing a glaucoma valve and a glaucoma drainage device comprising the glaucoma valve and/or the casing. The valve includes a flow channel having an inlet and an outlet and a valve member connected to the outlet of the flow channel. The valve member may be formed from a degradable polymer or a combination of degradable polymer and non-degradable polymer. Various embodiments of the invention relate to a glaucoma valve, the valve having a first flow channel. The interior of the first flow channel may be coated with a degradable polymer, such that in use, the polymer degrades to allow a greater flow of fluid through the flow channel. In some embodiments, the valve includes a second flow channel, which may be arranged in parallel to the first flow channel. The first flow channel may be completely sealed with the polymer such that in use, the polymer degrades to allow fluid to flow through the first flow channel. Various embodiments relate to a casing for containing a glaucoma valve. The casing may be formed from a degradable polymer, such as a biodegradable polymer.08-15-2013

Patent applications in class With flow control means (e.g., check valves, hydrocephalus pumps, etc.)

Patent applications in all subclasses With flow control means (e.g., check valves, hydrocephalus pumps, etc.)