Patents by Inventor Stephen D. Das

Stephen D. Das has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9761128
    Abstract: Remote controls including a first button, a second button, transmission means, associated with the housing, for transmitting a signal to the ambulatory infusion device, and a controller associated with the housing and adapted to prevent signal transmission by the transmission means unless the second button has been actuated, to allow signal transmission by the transmission means in response to actuation of the second button, and to control the transmission means to transmit a signal in response to the first button being pressed concurrently with actuation of the second button or during a predetermined period after actuation of the second button.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: September 12, 2017
    Assignee: Medallion Therapeutics, Inc.
    Inventors: Stephen D. Das, Jose P. Bernardo, Daniel H. Villegas, Scott R. Gibson, Timothy John Payne, Scott LaVoy Conway, Joseph Wayne Vandegriff
  • Patent number: 8808243
    Abstract: An implantable infusion system includes at least two controllable fluid transfer devices that may be used to transfer different fluid flows to the same or different body sites.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: August 19, 2014
    Assignee: Medallion Therapeutics, Inc.
    Inventors: Peter C. Lord, Stephen D. Das, Scott R. Gibson
  • Publication number: 20130249729
    Abstract: Remote controls that are configured to prevent inadvertent signal transmission.
    Type: Application
    Filed: January 7, 2013
    Publication date: September 26, 2013
    Applicant: The Alfred E. Mann Foundation For Scientific Research
    Inventors: Stephen D. Das, Jose P. Bernardo, Daniel H. Villegas, Scott R. Gibson, Timothy John Payne, Scott LaVoy Conway, Joseph Wayne Vandegriff
  • Patent number: 8425493
    Abstract: An implantable medication delivery device that is highly space efficient and can reliably and safely deliver controlled medication doses to a target site. The system includes a variable volume medication reservoir that is exposed to an ambient pressure equal to the ambient pressure at a system outlet port. A pump/valve subassembly is provided to draw medication from the reservoir and force a medication dose along a fluid transfer passageway to the outlet port. The pump/valve subassembly incorporates a safety mechanism, e.g., a balanced valve, which normally blocks medication flow to the outlet port and opens only in response to a pump induced unbalancing force. A protective shell is also disclosed for protecting the ambient reservoir.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: April 23, 2013
    Assignee: The Alfred E. Mann Foundation For Scientific Research
    Inventors: Peter C. Lord, Clyde K. Nason, Darren Y. K. Yap, Stephen D. Das, Ronald J. Lebel
  • Patent number: 8352042
    Abstract: A method of preventing inadvertent signal transmission sent from a remote control for controlling the operation of an implantable infusion device. The method includes maintaining the remote control in a locked state prior to a user intentionally unlocking the remote control in order to generate transmission of a signal from the remote control to the implantable infusion device. The unlocking of the remote control can include moving a button control element, unlocking a button lock, pressing a button other than the signal generation button, pressing the signal generation button in a specific sequence or shaking the remote control.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: January 8, 2013
    Inventors: Stephen D. Das, Jose P. Bernardo, Daniel H. Villegas, Scott R. Gibson, Timothy John Payne, Scott LaVoy Conway, Joseph Wayne Vandegriff
  • Patent number: 8352041
    Abstract: Remote controls, including a communication device, a button or other communication device actuator and a movable structure that allows actuation of the actuator in one position and prevents actuation of the actuator in another position to prevent inadvertent signal transmission.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: January 8, 2013
    Assignee: The Alfred E. Mann Foundation For Scientific Research
    Inventors: Stephen D. Das, Jose P. Bernardo, Daniel H. Villegas, Scott R. Gibson, Timothy John Payne, Scott LaVoy Conway, Joseph Wayne Vandegriff
  • Patent number: 8137311
    Abstract: This invention relates to methods, apparatuses and systems for testing the functionality of the pumping mechanism of a medical device, e.g., an implantable infusion pump, while the medical device is contained within a shipping package. The test apparatus enables such functional verification, without opening the shipping package, when the medical device is still contained within the package that has been appropriately sealed to maintain sterility of the medical device.
    Type: Grant
    Filed: July 5, 2009
    Date of Patent: March 20, 2012
    Assignee: The Alfred E. Mann Foundation For Scientific Research
    Inventor: Stephen D. Das
  • Publication number: 20110270233
    Abstract: An implantable infusion system includes at least two controllable fluid transfer devices that may be used to transfer different fluid flows to the same or different body sites.
    Type: Application
    Filed: July 13, 2011
    Publication date: November 3, 2011
    Inventors: Peter C. Lord, Stephen D. Das, Scott R. Gibson
  • Patent number: 8002747
    Abstract: An implantable infusion system includes at least two controllable fluid transfer devices that may be used to transfer different fluid flows to the same or different body sites.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: August 23, 2011
    Assignee: The Alfred E. Mann Foundation For Scientific Research
    Inventors: Peter C. Lord, Stephen D. Das, Scott R. Gibson
  • Publication number: 20090281494
    Abstract: Ambulatory infusion devices with components that may be heat sterilized.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Inventor: Stephen D. Das
  • Publication number: 20090270805
    Abstract: This invention relates to methods, apparatuses and systems for testing the functionality of the pumping mechanism of a medical device, e.g., an implantable infusion pump, while the medical device is contained within a shipping package. The test apparatus enables such functional verification, without opening the shipping package, when the medical device is still contained within the package that has been appropriately sealed to maintain sterility of the medical device.
    Type: Application
    Filed: July 5, 2009
    Publication date: October 29, 2009
    Inventor: Stephen D. Das
  • Patent number: 7604614
    Abstract: This invention relates to methods, apparatuses and systems for testing the functionality of the pumping mechanism of a medical device, e.g., an implantable infusion pump, while the medical device is contained within a shipping package. The test apparatus enables such functional verification, without opening the shipping package, when the medical device is still contained within the package that has been appropriately sealed to maintain sterility of the medical device.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: October 20, 2009
    Assignee: Infusion Systems, LLC
    Inventor: Stephen D. Das
  • Patent number: 7510552
    Abstract: An implantable medication delivery apparatus including a flow path coupling a medication reservoir to a device outlet port where the flow path includes a regulator means for limiting the magnitude of pressure transferred downstream from the medication reservoir. The regulator means is configured to respond to the reservoir pressure exceeding a certain threshold for closing a valve located downstream from the reservoir. The valve closure functions to isolate the device outlet port from further reservoir pressure increases which otherwise could induce unintended medication flow from the device outlet port.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 31, 2009
    Assignee: Infusion Systems, LLC
    Inventors: Ronald J. Lebel, Stephen D. Das
  • Publication number: 20080234638
    Abstract: Valves, valved fluid transfer devices and ambulatory infusion devices including the same.
    Type: Application
    Filed: March 24, 2008
    Publication date: September 25, 2008
    Inventors: David Christopher Antonio, Peter C. Lord, Stephen D. Das
  • Publication number: 20080234639
    Abstract: Valves, valved fluid transfer devices and ambulatory infusion devices including the same.
    Type: Application
    Filed: March 24, 2008
    Publication date: September 25, 2008
    Inventors: David Christopher Antonio, Stephen Roy Hessel, Scott R. Gibson, Christian Michael Merot, Lawrence Scott Ring, Norbert William Frenz, Stephen D. Das
  • Publication number: 20080125065
    Abstract: Remote controls that are configured to prevent inadvertent signal transmission.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 29, 2008
    Inventors: Stephen D. Das, Jose P. Bernardo, Daniel H. Villegas, Scott R. Gibson, Timothy John Payne, Scott LaVoy Conway, Joseph Wayne Vandegriff
  • Publication number: 20080125064
    Abstract: Remote controls that are configured to prevent inadvertent signal transmission.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 29, 2008
    Inventors: Stephen D. Das, Jose P. Bernardo, Daniel H. Villegas, Scott R. Gibson, Timothy John Payne, Scott LaVoy Conway, Joseph Wayne Vandegriff
  • Patent number: 6505081
    Abstract: A cardiac stimulator lead is provided. The cardiac stimulator lead includes a connector for connecting to a cardiac stimulator and a flexible tubular sleeve that has a first end coupled to the connector and a second end. An electrode has a proximal end that is inserted into the second end of the sleeve. An annular member is disposed around the proximal end and the second end and is deformed to clamp the second end to the proximal end. A conductor wire is coupled between the connector and the electrode. The deformed annular member eliminates reliance on an adhesive-to-metal molecular bond as the sole or primary mechanism for securing the distal end of a lead sleeve to the tip electrode. Manufacturing and assembly time may be significantly reduced.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: January 7, 2003
    Assignee: Intermedics, Inc.
    Inventor: Stephen D. Das
  • Patent number: 6148237
    Abstract: A cardiac stimulator lead is provided. The cardiac stimulator lead includes a connector for connecting to a cardiac stimulator and a flexible tubular sleeve that has a first end coupled to the connector and a second end. An electrode has a proximal end that is inserted into the second end of the sleeve. An annular member is disposed around the proximal end and the second end and is deformed to clamp the second end to the proximal end. A conductor wire is coupled between the connector and the electrode. The deformed annular member eliminates reliance on an adhesive-to-metal molecular bond as the sole or primary mechanism for securing the distal end of a lead sleeve to the tip electrode. Manufacturing and assembly time may be significantly reduced.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: November 14, 2000
    Assignee: Intermedics Inc.
    Inventor: Stephen D. Das
  • Patent number: 5428339
    Abstract: A trimmable resistor which is prepared with additional electrical contacts between the resistor and the substrate. These contacts are usually not connected electrically to the electronic circuit. Moreover, they do not extend across the entire width of the resistor. If the resistor is over trimmed, its resistance can be reduced by wire bonding a selected one of the additional electrical contacts to an end contact of the resistor. Multiple contacts may be placed along the substrate, both on the side of the resistor where trimming is to take place and on an opposite side.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: June 27, 1995
    Assignee: Intermedics, Inc.
    Inventor: Stephen D. Das