Intradermal needle

Intradermal needle

  • CN 1,531,446 B
  • Filed: 04/13/2001
  • Issued: 05/18/2011
  • Est. Priority Date: 04/13/2001
  • Status: Active Grant
First Claim
Patent Images

1. the reservoir that can be used in an energy storage of pharmaceutical pre-fills container, is used for medicine is injected into intradermal injection needle assembly in the human skin, and it comprises:

  • One can be connected in the described pre-handle tube portion that fills container that stores described medicine;

    One by the tube-shaped needle supporting of described pipe shank portion and that a preceding needle point that stretches out from described pipe shank portion is arranged, described before needle point comprise the needle point of an angle, length is between about 0.8 millimeter and 1.0 millimeters;

    AndOne surrounds described tube-shaped needle and from the described pipe shank portion limiter part that needle point is stretched before described tube-shaped needle described, described limiter has a flat skin contact surface that is roughly that is in the plane that is approximately perpendicular to described tube-shaped needle axis, this skin contact surface is done to become to be suitable for abutting on the skin of the animal that will accept the medicine intradermal injection, needle point permanently reaches the distance that length outside the described skin contact surface is about a pre-selected of 1.5 millimeters ±

    0.2 to 0.3 millimeter before described, wherein, the distance of described pre-selected that partly is configured such that described limiter can limit the degree of depth that described preceding needle point penetrates the skin corium of human skin, therefore the described medicine of vaccine and so on can be injected in the human skin corium.

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