Patents by Inventor Erik Andréen

Erik Andréen 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: 7722627
    Abstract: A surgical instrument for ligating internal tissue of a cavity in the human body by means of an elastic cord is disclosed. The instrument comprises an inner tube, having a distal and a proximal part, with the distal part having a distal end adapted to carry an elastic cord strained around it and with the proximal part arranged to be connected to a vacuum source, wherein at least one tube bend is formed between the distal and proximal part. Further, an outer discharge member is provided to push said elastic cord beyond the distal end of said tube to close around the stem of a tissue when inserted in the tube, the discharge member comprising an outer discharge part displaceably arranged around the distal part, an actuating part displaceably arranged around the proximal part, and a flexible connection part following said tube bend and arranged to transfer a movement of the actuating part to the discharge part.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: May 25, 2010
    Assignee: Astra Tech AB
    Inventor: Erik Andreen
  • Publication number: 20090099545
    Abstract: A self-contained portable apparatus for administration of a drug solution is disclosed, comprising: a housing having an enclosure for receiving a flexible pouch containing a drug solution, the output of which is connectable to a conduit for delivering said drug solution to a recipient. A pressurization system is arranged for providing a constant and controllable gas pressure to the housing, wherein a controllable pressure is obtained for a controllable delivery of the drug solution. The pressurization system comprises: a pressure source for delivering positive pressure gas; a pressure accumulation tank connected to said source and to said second chamber, arranged to provide a positive pressure reservoir; a one-way valve arranged between said pressure source and said pressure accumulation tank, enabling gas to flow solely in the direction from the pressure source to the pressure accumulation tank; and a mechanical pressure regulator arranged between said pressure accumulation tank and said housing.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 16, 2009
    Applicant: Astra Tech AB
    Inventors: Martin Nilsson, Erik Andreen
  • Publication number: 20080015485
    Abstract: An apparatus for collecting and salvaging blood is disclosed, comprising: a first chamber for collecting blood through an inlet port; a second chamber for receiving blood from the first chamber through a connection channel and a channel valve manually controllable to close the connection channel. Further, the apparatus comprises a control means for simultaneously controlling the channel valve and the internal pressure of the second chamber. Still further, a lipid separator is arranged in the second chamber for separating the blood from lipids before the release through the release port. By the arrangement of the lipid separator in the second chamber, it is possible to provide a very efficient separation and cleaning of the blood, and to allow release of the separated lipids and other buoyant substances from the chamber when the concentration is too high. Consequently, the apparatus could be used during an extended period of time, and could also be used for repeated re-use.
    Type: Application
    Filed: October 14, 2005
    Publication date: January 17, 2008
    Applicant: Astra Tech AB
    Inventors: Johan Sjögren, Erik Andreen, Sanna Grange-Jansson, Martin Nilsson
  • Publication number: 20060004384
    Abstract: A surgical instrument for ligating internal tissue of a cavity in the human body by means of an elastic cord is disclosed. The instrument comprises an inner tube, having a distal and a proximal part, with the distal part having a distal end adapted to carry an elastic cord strained around it and with the proximal part arranged to be connected to a vacuum source, wherein at least one tube bend is formed between the distal and proximal part. Further, an outer discharge member is provided to push said elastic cord beyond the distal end of said tube to close around the stem of a tissue when inserted in the tube, the discharge member comprising an outer discharge part displaceably arranged around the distal part, an actuating part displaceably arranged around the proximal part, and a flexible connection part following said tube bend and arranged to transfer a movement of the actuating part to the discharge part.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 5, 2006
    Inventor: Erik Andreen
  • Patent number: D538428
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: March 13, 2007
    Assignee: Astra Tech AB
    Inventor: Erik Andreen