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US 2003/0224331 A1Published application
Retaining screw with rententive feature
AssigneeZimmer Dental, Inc.
InventorsAjay Kumar, Ines Aravena
Life of this patent
Estimating the term…
Abstract
A dental retaining screw used to secure dental components, such as abutments, copings, and prosthesis to dental implants. The screw having a locking mechanism adapted to prevent the screw from loosening during shipping or while experiencing vibrations. The locking mechanism includes a locking component and biasing members located in the head portion of the retaining screw.
Claims20
A retaining screw for fastening a dental component to a dental implant, the retaining screw comprising:
- a head having a seating surface adapted to engage a seating surface inside a cavity of the dental component;
- a shank extending downwardly from the head and having external threads adapted to threadably engage a threaded socket of the dental implant;
- and
- a locking mechanism located at the head and including a locking component and a biasing member, the locking mechanism adapted to prevent the retaining screw from loosening while the retaining screw is threadably engaged in the socket of the dental implant.
1 more element
A dental kit attachable to a coronal end of a dental implant, the kit comprising:
- a dental component having an internal cavity with a seating surface and a locking mechanism;
- and
- a dental retaining screw having a head adapted to engage the seating surface of the dental component and tighten the dental component to the dental implant, the head including a moveable locking component and a biasing member, wherein the biasing member biases the locking component against the locking mechanism to prevent the retaining screw from loosening while the retaining screw is threadably engaged with the dental implant.
A dental retaining screw, comprising:
- a body having a head portion and an externally threaded shank adapted to threadably engage with a dental implant;
- and
- a locking mechanism located on the body and including a housing and a locking component and a biasing member located in the housing, wherein the biasing member moveably biases the locking component, and the locking mechanism is adapted to prevent the retaining screw from loosening when threadably engaged with the dental implant.
Dependencies are inferred from the claim text.