Patents by Inventor Helmut Wollschlaeger

Helmut Wollschlaeger 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: 7611497
    Abstract: The invention relates to a device for handling a catheter with an elongate valve body (12), a lever arm (26) which is, prestressed by means of a spring element and mounted pivotably on the valve body (12) so as to be pivotable from a first end position into a second end position (34) counter to the prestressing force of the spring element, a pressure piston (24) which is received in the valve body (12) and can be moved in the longitudinal direction by means of the lever arm (26) in order to open a sealing element in the valve body (12) when the lever arm (26) is moved in the direction of the second end position (34), and a catch mechanism (40) which has an arresting arrangement (42) and a catch tongue (50) interacting therewith in order to hold the lever arm (26) in at least one catching position.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: November 3, 2009
    Inventor: Helmut Wollschläger
  • Publication number: 20070045504
    Abstract: The invention relates to a device for handling a catheter with an elongate valve body (12), a lever arm (26) which is, prestressed by means of a spring element and mounted pivotably on the valve body (12) so as to be pivotable from a first end position into a second end position (34) counter to the prestressing force of the spring element, a pressure piston (24) which is received in the valve body (12) and can be moved in the longitudinal direction by means of the lever arm (26) in order to open a sealing element in the valve body (12) when the lever arm (26) is moved in the direction of the second end position (34), and a catch mechanism (40) which has an arresting arrangement (42) and a catch tongue (50) interacting therewith in order to hold the lever arm (26) in at least one catching position.
    Type: Application
    Filed: July 7, 2006
    Publication date: March 1, 2007
    Inventor: Helmut Wollschlaeger
  • Patent number: 6986749
    Abstract: The invention relates to a device for handling at least one guide wire (51) in order to guide an invasive medical instrument or in order to handle a catheter shaft using invasive medical techniques. A fixing arm (13) which can be fixed to an introduction valve (1) and a clamping device (16) attached to the fixing arm (13) are provided, wherewith the relevant guide wire or the catheter shaft can be secured against movements in the longitudinal direction. This enables the introduction valves (1) to be operated with one hand, while the other hand can be used for the manipulation of the other invasive medical instruments as opposed to having to fix elements such as a guide wire or catheter shaft which cannot be moved in a longitudinal direction.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: January 17, 2006
    Inventor: Helmut Wollschläger
  • Patent number: 6805688
    Abstract: In a method and a device for use in micro-invasive surgical procedures, and a guide catheter and a valve unit for use in micro-invasive surgical procedures, a bypass section (5) having an enlarged hydraulic cross section is provided, into which an instrument (10), for example a balloon, on an instrument catheter (11) can be retracted after treatment has been administered, thus allowing a sufficient quantity of fluid to flow past the instrument (1) and out of the guide catheter (4). By providing the bypass section (5) with an enlarged cross section, it becomes possible to use instruments (10) with very close-fitting guide catheters (4).
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: October 19, 2004
    Inventor: Helmut Wollschläger
  • Patent number: 6695818
    Abstract: The invention relates to a device for handling a catheter. The inventive device is provided with a valve body (1). A lever arm (31) for actuating a pressure piston (9) and a flexible locking component (44) are mounted on said valve body. The lever arm (31) is interlocked with one of several detent noses (49) using the locking component. The lever arm (31) can thus be held in an interlocking position respectively. The locking component (44) is also provided with an actuating wing (50) which can be actuated with a little finger and is oriented in the direction of extension of the lever arm when the lever arm is in the interlocking position. Clamping forces which are exerted on a sealing plug (7) and serve for clamping the catheter can thus be variably adjusted with one hand by means of the pressure piston (9).
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: February 24, 2004
    Inventor: Helmut Wollschläger
  • Patent number: 6409668
    Abstract: The invention relates to a device and method for examining female mammals using at least one displaceable ultrasonic transducer which is disposed for scanning level layer areas and with which ultrasonic beams can be injected into at least one mammal via a coupling medium. The or each ultrasonic transducer can be displaced on a predetermined path length by means of a transporting unit so that three-dimensional ultrasound images which are electronically filed in a storage area can be generated by a computer-aided assignment of a data value, said value corresponding to the offset, to each layer image of an image sequence of layer levels of the or ski each mammal, said levels running parallel to one another. In order to reduce artifacts, differential images are calculated which are then subtracted from the original ultrasound image in a sign-specific manner.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: June 25, 2002
    Inventor: Helmut Wollschlaeger