Patents by Inventor Chrit W. Dreessen

Chrit W. Dreessen 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: 5849033
    Abstract: A temporary atrial defibrillation lead featuring a pad fashioned of a pliant biocompatible material in which three parallel stainless steel defibrillation wire electrodes are mounted. The pad contains holes which expose the electrode wires in a discontinuous fashion. The three electrode wires are merged into one polyurethane insulated lead body, proximal to the pad. At the proximal end of the lead body a stainless steel connector pin with break away needle is mounted, for percutaneous exteriorization of the lead pin, in an area separated from the surgical incision. The break away needle can be broken off to make the connector pin suitable to patient cable connection. The pad is permanently implanted on the atria and remains implanted after removal of the temporary electrode sections. The temporary electrode sections may be removed by gently pulling them at their proximal end. In a preferred embodiment the pad is fashioned of PTFE felt.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: December 15, 1998
    Assignee: Medtronic, Inc.
    Inventors: Hormoz Mehmanesh, Werner Saggau, Karel F. A. A. Smits, Chrit W. Dreessen
  • Patent number: 5843150
    Abstract: A system and method for providing electrical and/or fluid treatment within a patient's brain, the system and method utilizing a feedthrough assembly made of a compressible material, and a disk-like pinch-on part, or resilient clamping part, which is secured around the feedthrough assembly to provide radially inward compressive force to reliably fix the lead after it has been positioned relative to the patient's skull. The feedthrough assembly is suitably made of a compressible biocompatible material such as silicone rubber, and has a annular receiving groove which is located so that it is accessible above the cranium after the feedthrough assembly is fixed within a burr hole in the patient's head. The pinch-on part, or clamping means is manufactured in a normally closed position, but can be opened, as by use of a forceps-type instrument, for positioning around the assembly annular groove.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: December 1, 1998
    Assignee: Medtronic, Inc.
    Inventors: Chrit W. Dreessen, Paulus A. A. Gubbels, Paulus G. Adams, Victor P. J. Duysens
  • Patent number: 5741322
    Abstract: A temporary atrial defibrillation lead featuring a polytetraflouroethylene ("TEFLON") felt pad in which three parallel stainless steel defibrillation wire electrodes are mounted. The pad contains holes which expose the electrode wires in a discontinuous fashion. The three electrode wires are merged into one polyurethane insulated lead body, proximal to the pad. At the proximal end of the lead body a stainless steel connector pin with break away needle are mounted, for percutaneous exteriorization of the lead pin, in an area separated from the surgical incision. The break away needle can be broken off to make the connector pin suitable to patient cable connection. The polytetraflouroethylene ("TEFLON") pad is permanently implanted on the atria and remains implanted after removal of the temporary electrode sections. The temporary electrode sections may be removed by gently pulling them at their proximal end.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: April 21, 1998
    Assignee: Medtronic, Inc.
    Inventors: Hormoz Mehmanesh, Werner Saggau, Karel F. A. A. Smits, Chrit W. Dreessen
  • Patent number: 5527358
    Abstract: A temporary atrial defibrillation lead featuring a polytetraflouroethylene ("TEFLON") felt pad in which three parallel stainless steel defibrillation wire electrodes are mounted. The pad contains holes which expose the electrode wires in a discontinuous fashion. The three electrode wires are merged into one polyurethane insulated lead body, proximal to the pad. At the proximal end of the lead body a stainless steel connector pin with break away needle are mounted, for percutaneous exteriorization of the lead pin, in an area separated from the surgical incision. The break away needle can be broken off to make the connector pin suitable to patient cable connection. The (polytetraflouroethylene ("TEFLON") pad is permanently implanted on the atria and remains implanted after removal of the temporary electrode sections. The temporary electrode sections may be removed by gently pulling them at their proximal end.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: June 18, 1996
    Assignee: Medtronic, Inc.
    Inventors: Hormoz Mehmanesh, Werner Saggau, Karel F. A. A. Smits, Chrit W. Dreessen
  • Patent number: 5423876
    Abstract: An intramuscular lead for the electrical stimulation of muscle tissue. The improved lead has a needle connected to a strand of suture, a coiled conductor coupled to the strand by a tapered section of the coiled conductor, an insulative cover covers part of the coiled conductor, and a terminal connector coupled to the coiled conductor provides a connection to a pulse generator. Through such a construction the lead may be more readily introduced through muscle tissue.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: June 13, 1995
    Assignee: Medtronic, Inc.
    Inventors: Antoine N. J. M. Camps, Chrit W. Dreessen, Michael W. J. Polz, Pierre A. Grandjean