Needle tip guard for hypodermic needle

Needle tip guard for hypodermic needle

  • CN 1,182,885 C
  • Filed: 02/27/1997
  • Issued: 01/05/2005
  • Est. Priority Date: 02/27/1996
  • Status: Active Grant
First Claim
Patent Images

1. needle protection device comprises:

  • A) be contained in a pin protector (22) on the pin that has near-end and a sharp distal end (11) slidably, this needle set has on its length and the profile (3) of the distortion that close this sharp distal end (11) forms, above-mentioned pin protector has near-end and far-end, described pin protector (22) is included in one first can receive the movable needle-catching piece (41) that changes between the state of stretching and one second mode of operation, wherein can receive in the state of stretching first, this activity needle-catching piece bias voltage leans against on this pin;

    In second mode of operation, this activity needle-catching piece is caught the sharp distal end (11) of this pin;

    WithB) restricted guidance part (34 that on the near-end of pin protector, forms,

         84), its have one be of a size of only make hole that this deformable contour can not pass and with above-mentioned pin on the deformable contour effect that forms, to limit the distance that this pin protector moves forward slidably from the near-end of pin on this pin, this restricted guidance part (34,84) operate when above-mentioned movable needle-catching piece and can receive when stretching state-transition from first, mesh substantially simultaneously with this deformable contour to second mode of operation.

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