Adjustable injection length pen needle

Details Adjustable injection length pen needle Adjustable injection length pen needle

1997-09-26

1999-08-31

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604117, 604192, A61M 500

Patent

active

059447001

ABSTRACT:
A pen needle of the present invention includes an extender that is rotatably attached to a hub on the pen needle to set the pen needle to a desired injection length. The extender is rotated into multiple predefined positions using a shield that is removably mounted on the pen needle. Each predefined position for the extender corresponds to a predetermined injection length for the pen needle such that the extender covers a section of the pen needle not being used for the injection. After the shield has been used to rotate the extender into one of the predefined positions the shield is removed from the pen needle to expose the distal point of the pen needle so that the injection can be performed.

REFERENCES:
patent: 4897083 (1990-01-01), Martell
patent: 5190521 (1993-03-01), Hubbard et al.
patent: 5336199 (1994-08-01), Castillo et al.

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