Patents by Inventor Joseph Madsen

Joseph Madsen 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: 11896789
    Abstract: A device and system for flushing a shunt catheter utilizes the available cerebrospinal fluid (CSF) to flush a blocked catheter. The CSF is pressurized to a predetermined amount and then allowed to suddenly, rapidly and forcefully purge any occlusions. The rapid release of CSF produces flow jets from the catheter pores into the ventricle. This impulse, or “cough”, will push and divert choroid plexus and/or other blockages away from the pores. The device and system may then be allowed to refill at a slow rate, thus reducing the possibility of rapid suction of fluid back into the system and the attendant possibility of drawing the choroid plexus back into the pores. The catheter at the proximal end may also include back-up pores that can be opened to restart flow from the ventricle should the primary pores remain blocked after a flushing attempt.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: February 13, 2024
    Assignee: Children's Medical Center Corporation
    Inventors: Joseph Madsen, Tomer Anor
  • Publication number: 20200147356
    Abstract: A device and system for flushing a shunt catheter utilizes the available cerebrospinal fluid (CSF) to flush a blocked catheter. The CSF is pressurized to a predetermined amount and then allowed to suddenly, rapidly and forcefully purge any occlusions. The rapid release of CSF produces flow jets from the catheter pores into the ventricle. This impulse, or “cough”, will push and divert choroid plexus and/or other blockages away from the pores. The device and system may then be allowed to refill at a slow rate, thus reducing the possibility of rapid suction of fluid back into the system and the attendant possibility of drawing the choroid plexus back into the pores. The catheter at the proximal end may also include back-up pores that can be opened to restart flow from the ventricle should the primary pores remain blocked after a flushing attempt.
    Type: Application
    Filed: October 16, 2019
    Publication date: May 14, 2020
    Applicant: Children's Medical Center Corporation
    Inventors: Joseph Madsen, Tomer Anor
  • Patent number: 10471239
    Abstract: A device and system for flushing a shunt catheter utilizes the available cerebrospinal fluid (CSF) to flush a blocked catheter. The CSF is pressurized to a predetermined amount and then allowed to suddenly, rapidly and forcefully purge any occlusions. The rapid release of CSF produces flow jets from the catheter pores into the ventricle. This impulse, or “cough”, will push and divert choroid plexus and/or other blockages away from the pores. The device and system may then be allowed to refill at a slow rate, thus reducing the possibility of rapid suction of fluid back into the system and the attendant possibility of drawing the choroid plexus back into the pores. The catheter at the proximal end may also include back-up pores that can be opened to restart flow from the ventricle should the primary pores remain blocked after a flushing attempt.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: November 12, 2019
    Assignee: Children's Medical Center Corporation
    Inventors: Joseph Madsen, Tomer Anor
  • Publication number: 20160038724
    Abstract: A device and system for flushing a shunt catheter utilizes the available cerebrospinal fluid (CSF) to flush a blocked catheter. The CSF is pressurized to a predetermined amount and then allowed to suddenly, rapidly and forcefully purge any occlusions. The rapid release of CSF produces flow jets from the catheter pores into the ventricle. This impulse, or “cough”, will push and divert choroid plexus and/or other blockages away from the pores. The device and system may then be allowed to refill at a slow rate, thus reducing the possibility of rapid suction of fluid back into the system and the attendant possibility of drawing the choroid plexus back into the pores. The catheter at the proximal end may also include back-up pores that can be opened to restart flow from the ventricle should the primary pores remain blocked after a flushing attempt.
    Type: Application
    Filed: March 4, 2014
    Publication date: February 11, 2016
    Applicant: Children's Medical Center Corporation
    Inventors: Joseph Madsen, Tomer Anor
  • Publication number: 20060241545
    Abstract: Microfluidic shunt valves are disclosed having a deflectable element capable of being held in a closed position to occlude the passage of fluid between an inlet and outlet and, when not held in the closed position, the deflectable element is adapted to oscillate in response to fluid pressure pulses and thereby facilitate fluid passage through the valve. Controls for activating the deflectable element to permit fluid passage are also included.
    Type: Application
    Filed: April 20, 2005
    Publication date: October 26, 2006
    Applicants: CHILDREN'S MEDICAL CENTER CORPORATION, NEW JERSEY INSTITUTE OF TECHNOLOGY
    Inventors: Joseph Madsen, Dentcho Ivanov
  • Publication number: 20060075648
    Abstract: The invention relates to apparatus and methods for measuring a human head. The apparatus disclosed herein involve the use of linear rulers, or rotating contacting members, coupled to a support member. The apparatus disclosed herein can be positioned on a human head, using the methods disclosed herein, to determine the outer contour of the head. Such a measurement can aid in the diagnosis and monitoring of various abnormalities of the human head, including plagiocephaly.
    Type: Application
    Filed: September 23, 2005
    Publication date: April 13, 2006
    Inventors: Joseph Madsen, James Goldie, Kristen Choppy, Thieu Truong
  • Publication number: 20060042013
    Abstract: The present invention relates to a head support device for the treating and prevention of plagiocephaly in infants. The device removes pressure from a desired area of an infant's head.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 2, 2006
    Applicant: Children's Hospital Boston
    Inventor: Joseph Madsen
  • Publication number: 20050223580
    Abstract: The invention relates to apparatus and methods for measuring a human head. The apparatus disclosed herein involve the use of linear rulers, or rotating contacting members, coupled to a support member. The apparatus disclosed herein can be positioned on a human head, using the methods disclosed herein, to determine the outer contour of the head. Such a measurement can aid in the diagnosis and monitoring of various abnormalities of the human head, including plagiocephaly.
    Type: Application
    Filed: February 28, 2005
    Publication date: October 13, 2005
    Applicant: Children's Hospital Boston
    Inventor: Joseph Madsen