A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/84
A61M 5/00 (2006.01) A61M 5/42 (2006.01) A61M 5/46 (2006.01)
Patent
CA 1164753
A B S T R A C T A device is disclosed for injection syringes for intramuscular and subcutaneous injections in human and veterinary medicine. The device is substantially in the form of a tube, the inside diameter of which is somewhat larger than the outside diameter of an injection syringe associated therewith. Located within the tubular sleeve are a clamping element and a stop-element, arranged at a distance from each other equal to the desired depth of injection, plus a safety distance between the tip of the needle and the edge of the sleeve. When a certain pressure, acting upon the injection-syringe in the direction of the lower edge of the sleeve, is exceeded, the clamping element releases the body of the syringe carrying the injection needle, allowing the syringe to advance. The advance of the syringe is halted by stop-element. The clamp- ing and stop elements may be in the form of beads projecting into the interior of the sleeve and thus constricting the internal cross-section thereof. The clamping element may also be in the form of a single tongue or of two diametri- cally opposite tongues on the peripheral surface of the sleeve, each of the tongues being provided with a nose.
356671
Fetherstonhaugh & Co.
Kling Lothar
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