Adjustable precision transponder injector
First Claim
1. Implant injector for injecting an implant subcutaneously in an animal to a predetermined distance from the injection entry point into the animal, said injector comprising:
- a cannula for holding the implant and having a distal end;
a handle for holding said cannula for subcataneous insertion into the animal;
a nose means being adjustably mounted on the front of said handle and said cannula extending through said nose means, said nose means for stopping the subcutaneous insertion of said cannula at a predetermined insertion depth and being adjustably mounted in position on said handle relative to the distal end of the cannula to control the insertion depth;
a plunger inside said handle and extending into said cannula and a spring for loading a force on the plunger for moving the plunger in said cannula;
an operator controlled plunger release mechanism inside said handle for releasing said spring loaded plunger to move through said cannula and expel the implant after insertion of said cannula to the predetermined insertion depth;
said plunger release mechanism having a detent for restraining said plunger against the spring load force on said plunger;
a plunger release button in said release mechanism operated with a motion in the same direction as the insertion motion of said cannula into the animal for releasing said plunger from said detent; and
a safety ring for enabling said plunger release button.
7 Assignments
0 Petitions
Accused Products
Abstract
An implant injector for animals is adjustable for implant insertion depth. The distance, that the injector needle or cannula, extends past the nose of the injector is adjustable. The insertion depth adjustment is accomplished by moving the nose of the injector relative to the tip of the cannula that extends past the nose. In addition to adjusting the insertion depth, the cannula or needle, may also be rotated to a plurality of positions relative to the injector handle.
A spring loaded plunger, when released by a release button, will push the implant out the end of the cannula as the operator withdraws the cannula from the animal. The release button is designed as a safety trigger to avoid premature activation of the plunger during insertion of the needle.
Needles, or cannulas of various diameters and lengths, may be interchanged in the injector. Also, the spring loaded plunger for expelling the implant may be removed allowing the operator to replace the plunger with a different diameter and length plunger, if desired, to match different size cannulas.
328 Citations
10 Claims
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1. Implant injector for injecting an implant subcutaneously in an animal to a predetermined distance from the injection entry point into the animal, said injector comprising:
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a cannula for holding the implant and having a distal end; a handle for holding said cannula for subcataneous insertion into the animal; a nose means being adjustably mounted on the front of said handle and said cannula extending through said nose means, said nose means for stopping the subcutaneous insertion of said cannula at a predetermined insertion depth and being adjustably mounted in position on said handle relative to the distal end of the cannula to control the insertion depth; a plunger inside said handle and extending into said cannula and a spring for loading a force on the plunger for moving the plunger in said cannula; an operator controlled plunger release mechanism inside said handle for releasing said spring loaded plunger to move through said cannula and expel the implant after insertion of said cannula to the predetermined insertion depth; said plunger release mechanism having a detent for restraining said plunger against the spring load force on said plunger; a plunger release button in said release mechanism operated with a motion in the same direction as the insertion motion of said cannula into the animal for releasing said plunger from said detent; and a safety ring for enabling said plunger release button. - View Dependent Claims (2, 3, 4)
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5. Apparatus for injecting an implant subcataneously in an animal to a precise distance from an injection entry point in the skin of the animal, said apparatus comprising:
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needle means tubular shaped for carrying said implant inside said needle means as the needle means is inserted subcutaneously in the animal by an operator; means for holding said needle means; stop means on said holding means for stopping the subcutaneous insertion of said needle means at an insertion depth, said insertion depth being a precise distance from the entry point of said needle means into the animal; means for adjusting said stop means relative to the needle means to control the insertion depth; and means for expelling said implant out of said needle means after insertion of the needle means to the insertion depth, said expelling means has a length such that the end of said expelling means reaches the distal end of said needle means; said expelling means includes means for loading said expelling means against the implant with a load force at least sufficient to slide the implant out of said needle means when the needle is removed from the animal; release control means for restraining said expelling means against the load force from said loading means and for releasing said expelling means against the implant with said load force, said release control means having a safety release means for enabling said release control means, and said release control means operated with a motion in the same direction as the insertion motion of said needle means into the animal. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification