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Position detection device and method for detecting at least two positions

A detection device and switch device technology, applied in blood sampling devices, blood flow measurement, medical equipment, etc., can solve problems that are out of reality

Inactive Publication Date: 2010-10-20
EDWARDS LIFESCIENCE IPRM AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, it would be unrealistic to draw conclusions here in a bolus illustrating its properties after passing through the blood vessels and / or the heart

Method used

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  • Position detection device and method for detecting at least two positions
  • Position detection device and method for detecting at least two positions
  • Position detection device and method for detecting at least two positions

Examples

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Embodiment Construction

[0064] figure 1 A schematic section through an embodiment example of a position detection device 10 according to the invention is shown. also, figure 1 A cross-section of the syringe 30 with the syringe barrel 25 and the syringe plunger 20 is also shown. The syringe barrel 25 is configured as a cylindrical hollow barrel, wherein the syringe plunger 20 is arranged such that it moves in such a way that a hollow space can be formed in the syringe barrel 25 which can hold a liquid. The syringe 20 has a nozzle 35 connected to a tube 80 . The tube 80 has a first tube section 81 connectable to a bag. Between the first pipe area 81 and the nozzle 35, a first valve 82 is arranged. The tube 80 has a second tube section 83 which can be connected to a conduit. A second valve 84 is arranged between the second pipe section 83 and the nozzle 35 . The syringe plunger 20 has a piston section 22 which is arranged to close the hollow space of the syringe barrel 25 , and the syringe plunger...

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Abstract

The invention relates to a position detection device (10) for detecting at least a first and a second position of a syringe plunger (20) relative to the syringe barrel (25) of a syringe, comprising at least three switching devices (40, 50, 60), wherein at least one switching device is configured as a reed contact, and at least one switching device is configured as a magnet.

Description

technical field [0001] The invention relates to a position detection device and a method for detecting at least two positions. In particular the present invention relates to a position detecting device for detecting at least a first and a second position of a syringe plunger relative to a syringe barrel of a syringe, and for detecting at least two positions of a syringe plunger relative to a syringe barrel of a syringe Methods. Background technique [0002] In the thermodilution method, it is necessary to infuse a predetermined volume of liquid, and to determine the change in this infused volume after a period of continuous flow through the vessel to be measured. A parameter relating to the container is then determined from the difference between the two detected volumes. An important prerequisite here is to detect the injected volume, as well as the time it takes to inject this volume. [0003] In DE 699 17 425 T2 an injection channel for a vascular catheter and provided...

Claims

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Application Information

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IPC IPC(8): A61B5/028A61M5/145A61M5/168A61B5/15
CPCA61M5/1452A61M5/31561A61M2205/3386A61B5/028A61M5/31548A61M5/31591A61M5/31505A61M5/1685A61M2005/31508A61M5/1684A61M5/31563A61M2205/3382
Inventor U·普法伊费尔R·诺尔T·托马缪勒D·穆拉斯
Owner EDWARDS LIFESCIENCE IPRM AG
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