Cannula assembly for a syringe

Details Cannula assembly for a syringe Cannula assembly for a syringe

A - Human Necessities

61

D

128/127

A61D 7/00 (2006.01) A61D 1/02 (2006.01) A61M 5/178 (2006.01) A61M 5/32 (2006.01)

Patent

CA 2029992

This cannula assembly for injecting medicinal fluid into an animal's teat has a first tapered cannula formed with a circumferential bead at its wider end. A flexible jacket encloses the cannula and has another bead detachably engaging the bead on the cannula. A tapered second cannula extends forwardly from the jacket. This cannula is substantially different in length than the first cannula. A closure means such as a flexible cap has an internal bead which detachably engages a corresponding bead at the wider end of the second cannula. This assembly provides the user with a choice of cannulas of two different sizes in treating a teat. In another form of the invention, a second flexible jacket has a bead which detachably engages a bead on the second cannula. A third cannula extends forwardly from the second jacket. A flexible cap detachably engages a bead on the third cannula, so that the user has a choice of cannulas of three different lengths in treating a teat.

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