Detectable heavy duty needle

  • US 6,960,196 B2
  • Filed: 08/08/2002
  • Issued: 11/01/2005
  • Est. Priority Date: 11/16/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. In a method of injecting an animal health product into flesh of a living food animal which comprises:

  • (a) providing an injection means comprising a needle assembly which includes a gauge of needle cannula having an outer diameter and a lumen with a lumen diameter and which is mounted on a device for injecting a dosage of the product into the living food animal, wherein the needle cannula is made of stainless steel which is magnetic or magnetizable, and the outer diameter is greater than an outer diameter of a standard needle cannula and the lumen diameter is identical to a lumen diameter of the standard needle cannula between 14 and 27 gauge so that the needle cannula has a sidewall thickness which renders the needle cannula resistant to breakage during the injection and the magnetism and the sidewall thickness enables detection of the magnetism of the needle cannula or piece thereof in the flesh of the animal upon slaughter and processing into a food if the needle cannula or piece thereof were to break off in the flesh of the living animal during the injection; and

    (b) injecting the living food animal with the dosage using the injection means, whereby if the needle cannula or piece thereof breaks off in the living animal during the injection, the needle cannula or piece thereof can be detected in the flesh of the animal upon slaughter and processing into the food.

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