Protecting a needle point
A drug delivery device may include sterile needle covered by removable a sterility preserving protector. The device optionally includes skin contact surface and a needle protector for preventing a stick hazard upon removal of the skin contact surface from an injection site or angle without Removing completely. Optionally, the needle protector may include a shield that interferes with replacement of the needle protector. In some embodiments, the needle cover may interfere with deployment of the needle protector.
1. An injector with a needle stick protector comprising:
a frame having a skin contact surface and defining an aperture in said skin contact surface;
a needle having a sharp tip configured to advance through said aperture;
a needle protector removably mounted over said needle; and
a stick protector movably attached to said frame and biased against said needle protector, the stick protector being movable into a shielding position upon removal of the needle protector, blocking exposure of the sharp tip and preventing the needle from deploying.
2. The injector of claim 1 , further including a handle for pulling said needle protector away from said needle thereby freeing said stick protector to move to the shielding position shielding said sharp tip of the needle.
3. The injector of claim 1 , wherein said needle protector protrudes through said aperture.
4. The injector of claim 1 , wherein said biasing causes said stick protector to overhang said aperture.
5. The injector of claim 1 , further comprising:
a pharmaceutical reservoir in fluid communication with said needle and having a long axis parallel to said skin contact surface.
6. The system of claim 5 , wherein the needle is rigidly attached to said pharmaceutical reservoir.
7. The system of claim 6 , wherein a longitudinal axis of the needle at the sharp tip thereof is oriented at an angle of between 30 to 150 degrees with respect to a long axis of said pharmaceutical reservoir.
8. The system of claim 7 , wherein said pharmaceutical reservoir includes a cylindrical bore and said long axis is the longitudinal axis of the bore.
9. The system of claim 1 , wherein said needle is sterile and said needle protector protects a sterility of the needle.
10. The system of claim 1 , wherein said skin contact surface includes an adhesive.
11. A needle protection system for an autoinjector comprising:
a frame including a skin contact surface having an aperture;
a sterile needle including a sharp tip on a distal portion thereof, a connection between said needle and said frame defining a pathway of movement for advancing said tip through said aperture;
a needle protector removably attached to said needle, said needle protector being removable from said needle along a trajectory defined by sliding of said needle protector along an axis of said distal portion of said needle; and
a shield connected to said frame, the shield being movable between a deployed position blocking said pathway and said trajectory, an open position clearing said pathway and said trajectory and a primed position blocking said trajectory and clearing said pathway.
12. The system of claim 11 , wherein said needle protector inhibits contamination of said sharp tip.
13. The system of claim 11 , wherein said needle shield is coupled to said needle protector such that removing said needle protector causes said shield to move from said open position to said shielding position.
14. The system of claim 13 , wherein said shield blocks replacement of said protector when said shield is in said shielding position.
15. The system of claim 11 , further comprising:
a needle driver configured to control said advancing of said needle tip and wherein said shield is interconnected to said needle driver to prevent said advancing when said shield is in said shielding position.
16. The apparatus of claim 11 , wherein said shield includes a latch that pivotally mounted to said frame.
17. The apparatus of claim 11 , wherein said shield includes a needle opening large enough to allow said needle tip to pass therethrough but smaller than said aperture, wherein in said primed position said needle is aligned to pass through said needle opening.
18. The apparatus of claim 17 , wherein in said shielding position said needle is misaligned with said needle opening.
19. The apparatus of any of claim 17 , wherein in said primed position said shield is flush with said frame.
20. The needle protection system of claim 11 , further comprising:
a pharmaceutical reservoir in fluid communication with said needle and having a long axis parallel to said skin contact surface.
21. The system of claim 20 , wherein the sterile needle is rigidly attached to said pharmaceutical reservoir.
22. The system of claim 21 , wherein a longitudinal axis of the needle at said sharp tip is oriented at an angle of between 30 to 150 degrees with respect to a long axis of said pharmaceutical reservoir.
23. The system of claim 22 , wherein said pharmaceutical reservoir includes a cylindrical bore and said long axis is the longitudinal axis of the bore.
24. The system of claim 11 , wherein said skin contact surface includes an adhesive.