Dental wrench and method of use thereof
First Claim
1. A dental instrument for use in installing prostheses;
- said instrument comprising;
a housing adapted to retain a screwdriver that includes a plurality of drive teeth and a driver bit;
a speed wrench connected to the housing and adapted to operationally engage the plurality of drive teeth on the screwdriver when activated; and
a ratchet wrench connected to the housing and adapted to operationally engage the plurality of drive teeth on the screwdriver when activated; and
wherein said speed wrench has a first path of operation and said ratchet wrench has a second path of operation different from the first path of operation.
1 Assignment
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Accused Products
Abstract
A dental instrument for installing and removing dental prostheses which includes both a speed wrench and a ratchet wrench, each being independently geared to a row of teeth on a screwdriver mounted in the dental instrument. The dental instrument includes a housing having a first and a second chamber. The screwdriver is partially mounted within the first chamber and the speed and rachet wrenches extend into the second chamber. The speed and ratchet wrenches are coaxially mounted within a handle that extends outwardly away from the housing. The speed wrench is rotatable about the longitudinal axis of the handle. The ratchet wrench is slidable along the longitudinal bore of the handle and is rotatable about the handle'"'"'s longitudinal axis through 180°. The screwdriver is mounted in such a manner that the driver bit is oriented substantially at ninety degrees to the wrenches.
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Citations
21 Claims
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1. A dental instrument for use in installing prostheses;
- said instrument comprising;
a housing adapted to retain a screwdriver that includes a plurality of drive teeth and a driver bit; a speed wrench connected to the housing and adapted to operationally engage the plurality of drive teeth on the screwdriver when activated; and a ratchet wrench connected to the housing and adapted to operationally engage the plurality of drive teeth on the screwdriver when activated; and
wherein said speed wrench has a first path of operation and said ratchet wrench has a second path of operation different from the first path of operation. - View Dependent Claims (2, 3, 4, 5, 6)
- said instrument comprising;
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7. A dental instrument for use in installing prostheses:
- said instrument comprising;
a housing adapted to retain a screwdriver that includes a plurality of drive teeth and a driver bit; a speed wrench connected to the housing and adaDted to oDerationally engage the plurality of drive teeth on the screwdriver when activated; a cylindrical handle fixedly connected to and extending outwardly away from the housing; and
wherein the speed wrench comprises a tubular member which is coaxially received through a longitudinal bore of the handle; anda ratchet connected to the housing and adapted to operationally engage the plurality of drive teeth on the screwdriver when activated. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
- said instrument comprising;
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17. A dental instrument for installing and removing dental prostheses;
- comprising a speed wrench and a ratchet wrench that both form part of a handle of the dental instrument and are independently geared to at least one plurality of teeth on a screwdriver mounted in the dental instrument;
wherein the speed wrench is activated by rotating a portion of the handle about a longitudinal axis thereof; and
the ratchet wrench is activated by rotating the handle about a longitudinal axis of the screwdriver; and
wherein the screwdriver includes a driver bit that is oriented substantially at ninety degrees to both the speed wrench and the ratchet wrench; and
wherein said driver bit is adapted to engage a recess on the dental prosthesis and to selectively rotate the prosthesis in one of a first and second direction.
- comprising a speed wrench and a ratchet wrench that both form part of a handle of the dental instrument and are independently geared to at least one plurality of teeth on a screwdriver mounted in the dental instrument;
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18. A method of installing and removing a dental prosthesis comprising the steps of:
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engaging a screwdriver having a driver bit to a rachet assembly; engaging the driver bit with a prosthesis screw to be installed in the oral cavity of a patient; engaging a speed wrench of the ratchet assembly to rotate the screw in one of a first direction and a second direction; engaging a ratchet wrench of the ratchet assembly to rachet the screw in the one of the first and second directions. - View Dependent Claims (19, 20)
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21. A dental instrument for use in installing prostheses;
- said instrument comprising;
a housing; a handle extending outwardly away from the housing;
said handle having a longitudinal axis;a screwdriver retained within the housing and having a longitudinal axis disposed at right angles to the longitudinal axis of the handle;
said screwdriver including a plurality of drive teeth and a driver bit;a speed wrench forming part of the handle and being rotatable about the longitudinal axis of the handle;
said speed wrench being operationally engaged with the plurality of drive teeth to selectively rotate the screwdriver about the screwdriver'"'"'s longitudinal axis when the speed wrench is rotated about the handle'"'"'s longitudinal axis; anda ratchet wrench forming part of the handle and being operationally engaged with the plurality of drive teeth to selectively rotate the screwdriver about the screwdriver'"'"'s longitudinal axis when the handle is rotated about the screwdriver'"'"'s longitudinal axis
- said instrument comprising;
Specification