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US 4,941,874 AGranted
Device for the administration of implants
AssigneeHoechst Aktiengesellschaft
InventorsJurgen K. Sandow, Wilfried De Felice, Horst Pajunk, Heinrich Pajunk
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for the injection of implants, preferably implants "in the form of small rods" (called rods), which are used for the long-term treatment of diseases, whose essential features are the completely transparent construction, especially of the injector body (3), as well as a protecting device which prevents the plunger rod from falling out, and a protective cap (6) for the plunger rod.
Claims11
A device for the injection of implants comprising:
- an active substance container fabricated from transparent plastic, having a first end opening, a second end opening, and a cylindrical plunger channel extending between and connecting said first and second end openings, said cylindrical plunger channel including a flexible O-ring for reducing the internal diameter of said channel at a predetermined location;
- a cannula extending from said first end openings;
- a plunger rod movably disposed in said channel and extending from said second end opening, said rod having a concentric groove therein for receiving said O-ring;
- a first protective cap for covering said cannula;
- and
- a second protective cap for covering said plunger rod.
3 more elements
A device for injection of implants, comprising:
- an active substance container having a first end opening, a second end opening, and a cylindrical plunger channel extending between and connecting said first and second end openings, said cylindrical plunger channel including a flexible O-ring for reducing the internal diameter of said channel at a pre-determined location;
- a cannula extending from said first end opening;
- a plunger rod movably disposed in said channel and extending from said second end opening, said rod having a concentric groove therein for receiving said O-ring;
- and
- a protective cap of covering said plunger rod to prevent inadvertent movement of said plunger rod.
2 more elements
Dependencies are inferred from the claim text.