Biological sample preservation tube with identification code and method for manufacturing the same

  • US 9,986,980 B2
  • Filed: 04/18/2016
  • Issued: 06/05/2018
  • Est. Priority Date: 10/18/2013
  • Status: Active Grant
First Claim
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1. A method for making a biological sample preservation tube with an identification code, comprising:

  • manufacturing an information element, including;

    printing the identification code on a core layer;

    overlaying a heat sealing layer on the identification code of the core layer; and

    forming the information element by integrating the core layer and the heat sealing layer;

    cutting the information element, including;

    cutting the information element into a size not exceeding that of a position to be fused, and each cut information element is removed off static electricity to avoid attaching to each other; and

    placing the cut information element on a same support frame as a mold, for being taken by a robotic hand;

    picking and placing the information element, including;

    placing the cut information element on a predetermined position in the mold by the robotic hand, with a side of the cut information element having the identification code facing away from an inner core attached to an outer wall of a mold cavity;

    applying static electricity on the cut information element such that the cut information element is attached onto the mold under the effect of the electrostatic field for temporary fixation; and

    performing mold closing and injection molding to form the biological sample preservation tube, including;

    injecting molten plastic feedstock into the mold via at least two symmetric feed channels from both sides of the mold, each feed channel being reflexed at a point close to a plurality of feed inlets pointing to a center position of a bottom side of the mold, the at least two symmetric feed channels introducing the molten plastic feedstock into the mold.

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