A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/32 (2006.01)
Patent
CA 2504384
The present invention discloses a mechanism for tilting a retractable needle, in which a needle adapter housed within a barrel comprises a connecting tube with a receiving groove on inner wall. The connecting tube forms a rectangle hole on the wall, and a cantilever with at least one tongue is formed between the rectangle hole and the rear portion of the connecting tube. The plunger fitted in the barrel comprises an extruding ring at a front end thereof. When the plunger is pushed forwardly into the connecting tube of the needle-adapter, an exterior ring of the plunger connected to with a piston will force the tongue to bend the cantilever toward the center of the open area, and engage the extruding ring into the receiving groove. When the plunger is pulled backward, the needle-adapter and the needle will be retracted into the barrel. Meanwhile, the needle will tilt as the tongue is forced against exterior ring by the cantilever, and the needle point is therefore close to the inner wall of the barrel. Accordingly, exposure of the needle point due to carelessly pushing the plunger can be prevented.
Intai Technology Corp.
Riches Mckenzie & Herbert Llp
LandOfFree
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