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Placement aid for placing a catheter for diabetics

  • US 10,426,924 B2
  • Filed: 05/31/2016
  • Issued: 10/01/2019
  • Est. Priority Date: 11/28/2013
  • Status: Active Grant
First Claim
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1. A placement aid for placing a catheter and a sensor wire into a body comprising:

  • a placement device;

    a replacement device with a main body, a placement needle, a catheter and a sensor wire;

    wherein the replacement device is arranged in the placement device in an interchangeable and replaceable manner,wherein the placement needle is coupled to the main body,wherein the placement needle and the catheter are arranged with regard to each other in such a way that the placement needle is arranged within the catheter, and that a tip of the placement needle protrudes from a proximal end of the catheter along a puncturing direction so that upon placement of the catheter along the puncturing direction, the tip of the placement needle penetrates a skin in order to produce a skin opening through which the catheter can be guided up to a subcutaneous end position, andwherein the sensor wire is coupled to the placement needle in such a way that upon placement of the catheter along the puncturing direction, the sensor wire is arranged in the placement needle and that, upon reaching the subcutaneous end position of the catheter, the placement needle can be removed from the catheter against the puncturing direction and the sensor wire remains in the catheter; and

    a holding-down rod which is arranged in the placement needle in a displaceable manner,wherein the holding-down rod is designed to frictionally press the sensor wire against the placement needle, andwherein the holding-down rod is further arranged at the main body in a movable manner along the puncturing direction such that, upon placement of the catheter along the puncturing direction, the placement needle, the sensor wire and the holding-down rod can jointly be advanced up to the subcutaneous end position of the catheter and such that, upon reaching the subcutaneous end position of the catheter, the holding-down rod can be withdrawn from the catheter against the puncturing direction.

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