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PRESSURE REDUCTION MECHANISM, PUNCTURE DEVICE, BLOOD ANALYSIS DEVICE, AND SENSOR MOUNTING MECHANISM

  • US 20110245635A1
  • Filed: 10/15/2009
  • Published: 10/06/2011
  • Est. Priority Date: 12/09/2008
  • Status: Active Grant
First Claim
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1. A decompression mechanism, comprising:

  • a cylinder having a bottom;

    a piston having a first end part projecting from the bottom and a second end part that is located in the cylinder and slides along an axis of the cylinder;

    a first sealing section that seals between the bottom and an outer of the piston;

    a second sealing section that seals between the second end part and an inner of the cylinder; and

    an air chamber that is sealed with the first and second sealing sections and surrounded by the outer surface of the piston and the inner surface of the cylinder, wherein the piston has a connection hole that connects the air chamber with a hollow space opening in the first end part.

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