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US 2003/0224322 A1Published application
Dental hand tool with ratchet mechanism
AssigneeZimmer Dental, Inc.
InventorsAjay Kumar, Ines Aravena
Life of this patent
Estimating the term…
Abstract
A manual dental driving tool adapted to drive a dental implant into the jawbone of a patient. The driving tool includes a handle at the proximal end, a ratchet assembly and a pin assembly located within the handle, and a tool engaging assembly located at the distal end. The pin assembly switches the driving tool between a manual mode and a ratchet mode.
Claims20
A dental driving tool, comprising:
- a handle having a hand-grip portion on a exterior surface;
- a drive shaft having a distal end with a tool engaging assembly adapted to engage a dental driver and having a proximal end connected to the handle;
- a ratchet assembly located in the handle;
- a pin assembly located in the handle;
- the dental driving tool being operable in two different modes, a ratchet mode and a manual mode, to drive a dental implant into a jawbone of a patient;
- and
- wherein the ratchet mode uses the ratchet assembly to drive the dental implant, and the manual mode uses the pin assembly to drive the dental implant.
4 more elements
A dental driving tool, comprising:
- a handle adapted to be manually rotated;
- a drive shaft having a locking mechanism, a distal end adapted to drive a dental implant into a jawbone, and a proximal end connected to the handle;
- a ratchet assembly at the proximal end of the drive shaft;
- and
- a pin assembly at the handle and releasably engageable with the locking mechanism to provide two different modes of drive rotation, a ratchet mode and a manual mode, to drive the dental implant into the jawbone.
2 more elements
A dental driving tool, comprising:
- a handle adapted to be manually rotated;
- a drive shaft having a distal end adapted to drive a dental implant into a jawbone and having a proximal end connected to the handle;
- a ratchet assembly at the drive shaft and including a race and a roller member;
- a pin assembly at the handle and releasably engageable with the drive shaft to provide two different modes of drive rotation, a ratchet mode and a manual mode;
- the ratchet mode is adapted to use the ratchet assembly to drive the dental implant into the jawbone;
- and
- the manual mode is adapted to use engagement between the pin assembly and drive shaft to drive the dental implant into the jawbone.
4 more elements
Dependencies are inferred from the claim text.