Patents Assigned to Codman & Shurtleff, Inc
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Patent number: 7331940Abstract: A percutaneous access device is provided including a sleeve having an inner lumen extending therethrough that is adapted to slidably receive a catheter, and at least one flange disposed around the sleeve and adapted to be positioned adjacent a tissue surface. In a preferred embodiment, the device includes a first flange disposed around the sleeve and adapted to be positioned adjacent a first tissue surface, and a second flange disposed around the sleeve and spaced apart from the first flange such that the second flange is adapted to be disposed adjacent a second tissue surface opposed to the first tissue surface. In use, the flanges 16, 18 are positioned on opposed sides of tissue so that the device 10 is effective to prevent tissue surrounding the percutaneous access device from coming into contact with the catheter as it is introduced through the sleeve 12.Type: GrantFiled: May 27, 2005Date of Patent: February 19, 2008Assignee: Codman & Shurtleff, Inc.Inventor: Bob Sommerich
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Patent number: 7318813Abstract: A self adjusting hydrocephalus valve that continuously drains cerebrospinal fluid at a rate which is proportional to the average pressure difference across the valve. The valve employs a ball-in-cone mechanism having an associated biasing element that is insensitive to high frequency pressure variations for regulating the opening of the valve mechanism. The biasing element includes flexible bellows having a preset tension.Type: GrantFiled: June 26, 2003Date of Patent: January 15, 2008Assignee: Codman & Shurtleff, Inc.Inventor: Meir Rosenberg
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Publication number: 20070293847Abstract: A leveling device for determining the zero pressure point of an external draining system with respect to a patient is provided. The leveling device generally includes a body having a viewing element defining a field of vision, and a reference point indicator spaced apart from the viewing element and disposed within the line of vision. The viewing element and the reference point indicator define a line of sight. The device further includes a horizontal level indicator mated to the body and oriented parallel to the line of sight established by the viewing element and the reference point indicator. The horizontal level indicator is effective to indicate the horizontal alignment of the body with respect to a particular reference point viewed through the viewing element and indicated by the reference point indicator.Type: ApplicationFiled: August 15, 2007Publication date: December 20, 2007Applicant: CODMAN & SHURTLEFF, INC.Inventor: Stephen Wilson
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Patent number: 7288108Abstract: This invention relates to an implantable device that delivers an effective amounts of red light to the substantia nigra as a treatment for Parkinson's Disease (PD).Type: GrantFiled: March 14, 2005Date of Patent: October 30, 2007Assignee: Codman & Shurtleff, Inc.Inventors: Thomas M. DiMauro, Mohamed Attawia, Chantal Holy, Sean Lilienfeld, Jeffrey K. Sutton, Michael Ward
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Publication number: 20070239381Abstract: Methods and devices are described for monitoring reservoir fluid in an implantable infusion pump. Such methods and devices can be used when the infusion pump has a temperature-dependent component. For example, a method of monitoring reservoir fluid can include obtaining measurements from the reservoir that include corresponding data related to the amount of fluid and temperature in the reservoir. A pair of measurements can be used to monitor the fluid level, or flow rate out of, the reservoir when the corresponding temperatures of the measurements are within a temperature tolerance value. In such an instance, a measured amount difference can be calculated based on the fluid amounts corresponding to the pair of measurements. Other variations of fluid monitoring methods, and implantable infusion pump systems that can perform fluid monitoring, are also described.Type: ApplicationFiled: March 30, 2006Publication date: October 11, 2007Applicant: Codman & Shurtleff, Inc.Inventors: Alec Ginggen, Rocco Crivelli
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Patent number: 7235060Abstract: A shunt system for controlling the flow of fluid from one region of a patient to a different region of the patient's body. The shunt system includes endoscopic placement features so that the system can be placed endoscopically in a minimally invasive surgery. Also provided is a single fluid flow control device having flow control characteristics previously obtainable only by connecting in series two or more shunt system components. In addition, the shunt system includes a selectively engageable locking mechanism that allows the system to be assembled quickly and easily, without the need for sutures or adhesives. The present assembly process minimizes the possibility of any unintended fluid leakage from the device.Type: GrantFiled: March 27, 2003Date of Patent: June 26, 2007Assignee: Codman & Shurtleff, Inc.Inventor: Robert G. Kraus
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Patent number: 7226441Abstract: A catheter is provided having a plurality of fluid entry ports formed therein and in communication with an inner lumen of the catheter. One or more of the fluid entry ports includes a fluid-permeable barrier extending there across. In a preferred embodiment, a set of conductive members is embedded in the wall of the catheter and connects each barrier to a control unit. In the event of blockage in the catheter, an external power source can non-invasively command the control unit to transmit an electric current to one or more of the barriers to dissolve or otherwise remove the barrier, thereby allowing fluid to once again flow through the catheter.Type: GrantFiled: June 23, 2003Date of Patent: June 5, 2007Assignee: Codman & Shurtleff, Inc.Inventor: Sigmund Kulessa
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Patent number: 7226430Abstract: A closed loop feedback drug delivery system for controlling muscle activity, e.g., spasticity. The system includes a sensor, e.g., an EMG sensor, for monitoring muscle activity and generating a detected muscle activity signal. A controller automatically adjusts at least one of timing and dosage of a drug administered to control muscle activity based on the detected muscle activity signal and produces a control signal. Administering of the drug, e.g., an antispasmodic drug, for controlling muscle activity based on the control signal is performed by an infusion pump. The drug after being emitted from the pump is then delivered to the spinal cord of the patient using an intrathecal catheter.Type: GrantFiled: December 26, 2003Date of Patent: June 5, 2007Assignee: Codman & Shurtleff, Inc.Inventor: Lev Ludin
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Publication number: 20070082843Abstract: Methods and compositions are provided for suppressing appetite by surgically implanting a drug infusion pump into a site in a subject, and delivering a stable suspension of an appetite suppressing agent a region in a central nervous system of the subject. The appetite suppressing agent binds to a target receptor on a neural cell in the central nervous system and modifies the receptor function to suppress appetite.Type: ApplicationFiled: October 7, 2005Publication date: April 12, 2007Applicant: CODMAN & SHURTLEFF, INC.Inventors: Vedrana Stojanovic-Susulic, Ramakrishna Venugopalan, Mark Cunningham
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Patent number: 7192413Abstract: A needle or puncture guard that has inherent probe directing features for use in an in-line configured shunt valve is provided. The guard comprises a base member configured for mounting within the domed reservoir of the shunt valve, and a guide wall seated on the base member. The guide wall is defined by a top wall, an inner side wall, and an opposed outer side wall. The inner side wall has an indented section with an aperture extending through the indented section. The inner side wall can be concavely curved, while the indented section has a curvature that directs instruments that are pressed against the guide wall towards the aperture. A method for performing catheter revisions on a shunt system having a guard within the shunt valve is provided as well. Also provided is a method for placement of an intracranial pressure sensor percutaneously into a ventricular catheter for determining intracranial pressure.Type: GrantFiled: June 11, 2003Date of Patent: March 20, 2007Assignee: Codman & Shurtleff, Inc.Inventors: Robert G. Kraus, Alan J. Dextradeur
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Patent number: 7181963Abstract: A thermal flow sensor has a first, second and third substrate, each having a first side and a second opposite side. The first substrate is connected to the second substrate such that the second side of the first substrate abuts the first side of the second substrate. The third substrate is connected to the second substrate such that the second side of the second substrate abuts the first side of the third substrate. The first, second and third substrate form a multi-layer body structure having at least one edge extending between a first side of the first substrate and the second side of the third substrate. The second substrate has a groove formed therein so as to form a conduit bounded by the second substrate and the second side of the first substrate and the first side of the third substrate. The conduit has an inlet opening and an outlet opening that are formed in the at least one edge.Type: GrantFiled: June 30, 2004Date of Patent: February 27, 2007Assignee: Codman & Shurtleff, IncInventor: Toralf Bork
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Patent number: 7174923Abstract: A kit for refilling an implantable pump includes a first syringe, a second syringe a a three-way stopcock, which has three ports and an actuator. The actuator allows for selectively effecting fluid communication between only two of the ports. The first syringe is in fluid communication with a first one of the ports. The second syringe is in fluid communication with a second one of the ports. A filling needle is in fluid communication with a third one of the ports. The actuator is selectively moveable between a first position where the first syringe is in fluid communication with the second syringe and the filling needle is isolated from fluid communication with the first syringe and the second syringe, and a second position where the second syringe is in fluid communication with the filling needle and the first syringe is isolated from fluid communication with the second syringe and the filling needle.Type: GrantFiled: October 31, 2003Date of Patent: February 13, 2007Assignee: Codman & Shurtleff, Inc.Inventors: Gregory Schorn, Sevak Stephanian
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Publication number: 20070005000Abstract: A shunt valve assembly includes an electromechanical brake mechanism that locks a position of a pressure setting mechanism within a shunt valve assembly. The electromechanical brake can maintain the position of the pressure setting mechanism in the presence of a relatively strong magnetic field to maintain a set pressure differential within the shunt valve assembly. In certain cases, the shunt valve requires repositioning of the pressure setting mechanism within the shunt valve assembly to adjust a fluid flow rate through the shunt valve assembly. A clinician can activate an external controller to transmit a signal to the shunt valve assembly through magnetically coupled antennas between the controller and the shunt valve. The shunt valve assembly utilizes the signal to activate the braking mechanism and unlock the pressure setting mechanism. The clinician then operates the controller to non-invasively reposition the pressure setting mechanism and adjust the pressure at which the shunt valve opens.Type: ApplicationFiled: June 29, 2005Publication date: January 4, 2007Applicant: CODMAN & SHURTLEFF, INC.Inventor: Lev Ludin
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Publication number: 20060253105Abstract: An implantable pump and methods for detecting leaks in an implantable pump are provided. In one embodiment, the implantable drug pump includes a housing having at least one inlet port and an outlet port formed therein. The outlet port is adapted to communicate with a catheter for delivering fluid to a patient's body, and the inlet port(s) are effective to deliver fluid into the housing. The housing further includes at least one reservoir disposed therein and effective to contain a fluid. In use, the pump preferably includes a fluid having one or more drugs disposed in at least one of the reservoirs, and a radiolucent fluid disposed in one of the reservoirs. A user programmable control mechanism is coupled to the drug pump and is effective to selectively control movement of the valves between the open and closed positions.Type: ApplicationFiled: June 28, 2006Publication date: November 9, 2006Applicant: CODMAN & SHURTLEFF, INC.Inventors: Lev Ludin, Brooke Mastrorio, Tim Beardsley
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Patent number: 7118549Abstract: An anti-siphon device limits the flow of a fluid from a first region of a patient's body to a second region. The device includes a housing having a spherical inner surface with a predetermined inner diameter. The housing has an inlet port for receiving fluid from the first region and an outlet port for directing fluid to the second region. The inlet port and the outlet port are disposed approximately diametrically opposite from each other. A spherical ball is disposed within the housing. The spherical ball has a ferromagnetic weight disposed off center therein. The spherical ball has an outer diameter that is less than the inner diameter of the housing so that the spherical ball is free to rotate within the housing and the fluid is free to flow between the inner surface of the housing and an outer surface of said spherical ball. The spherical ball has a circumferential recess extending through its center.Type: GrantFiled: October 31, 2003Date of Patent: October 10, 2006Assignee: Codman & Shurtleff, Inc.Inventor: Ian Chan
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Publication number: 20060224102Abstract: Methods and devices are provided for shunting fluid to treat hydrocephalous, and in particular for treating normal pressure hydrocephalous, or Alzheimer's, Idiopathic Intracranial Hypertension (IIH), or any other condition in which it is necessary to drain and/or cleanse CSF. The methods and devices utilize a shunt having an inlet port, and outlet port, and a flow control component for controlling fluid flow from the inlet port to the outlet port. The shunt can be implanted at a location along or within a patient's spinal column. In one exemplary embodiment, an inlet port of a shunt can be implanted within the subarachnoid space, and an outlet port of a shunt can be implanted at a drainage site. In certain exemplary embodiments, the cerebrospinal fluid is drained into the epidural space.Type: ApplicationFiled: March 22, 2006Publication date: October 5, 2006Applicant: Codman & Shurtleff, IncInventor: Bradley Glenn
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Publication number: 20060224101Abstract: Methods and devices are provided for shunting fluid to treat hydrocephalous, and in particular for treating normal pressure hydrocephalous, or Alzheimer's, Idiopathic Intracranial Hypertension (IIH), or any other condition in which it is necessary to drain and/or cleanse CSF. The methods and devices utilize a shunt having an inlet port, and outlet port, and a flow control component for controlling fluid flow from the inlet port to the outlet port. The shunt can be implanted at a location along or within a patient's spinal column. In one exemplary embodiment, an inlet port of a shunt can be implanted within the subarachnoid space, and an outlet port of a shunt can be implanted at a drainage site. In certain exemplary embodiments, the cerebrospinal fluid is drained into the epidural space.Type: ApplicationFiled: March 22, 2006Publication date: October 5, 2006Applicant: Codman & Shurtleff, IncInventor: Bradley Glenn
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Publication number: 20060220839Abstract: A device and method for monitoring a patient having a sensing device taking sensor data continuously and a transmitter located on the patient and internally powered. The transmitter is normally in a power-down state and powered-up for transmitting the sensor data. A receiver is located remote from the patient and receives the sensor data transmitted wirelessly from the transmitter. The transmission is typically a burst and can also be initiated on a command. For the burst, the sensor data is accumulated over a first period. The transmitter can transmit the sensor data over a second period of time. The second period of time is shorter than the first period of time. Once the transmission is complete, transmitter can be powered down. A further step displays the sensor data at the receiver in pseudo real-time. The display is shifted by a sum of the first and the second period of time.Type: ApplicationFiled: April 1, 2005Publication date: October 5, 2006Applicant: Codman & Shurtleff, Inc. (J&J)Inventors: Douglas Fifolt, Miki Rosenberg
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Publication number: 20060211945Abstract: 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.Type: ApplicationFiled: April 11, 2005Publication date: September 21, 2006Applicant: CODMAN & SHURTLEFF, INC.Inventors: Christophe Mauge, Alan Dextradeur, Daniel McCusker, Stefan Meyer, Volker Boedecker, Max Ostermeier
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Publication number: 20060211946Abstract: 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.Type: ApplicationFiled: April 11, 2005Publication date: September 21, 2006Applicant: CODMAN & SHURTLEFF, INC.Inventors: Christophe Mauge, Alan Dextradeur, Daniel McCusker, Stefan Meyer, Volker Boedecker, Robert Kraus, Max Ostermeier
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Patent number: 4956237Abstract: A hollow fiber with a plurality of members projecting from its outer surface in an arc turned back on itself is formed from a spinneret having a segmented orifice wherein each segment comprises a first portion in the form of an arc curved about the center of the orifice, a second portion extending from the first and connected to a third portion which is in the form of a reverse curve with respect to the first.Type: GrantFiled: January 24, 1989Date of Patent: September 11, 1990Assignee: E. I. duPont de Nemours and CompanyInventor: Harry V. Samuelson