Osteogenic distraction device
First Claim
1. An osteogenic mandibular distraction device for bucchal installation comprising:
- a thoracic member having a fore end and an aft end;
a tail member slidably engaged to the thoracic member at the aft end thereof, thereby defining a longitudinal axis between the thoracic member and the tail member, and having a tail member fastening feature for attachment with respect to a first boney structure;
an axial extender rotatably attached with respect to the thoracic member, extending therefrom in an aft direction, and engaged with respect to the tail member, whereby a distance between the thoracic member and the tail member may be variably established;
a head member having;
a rear portion pivotably attached with respect to the fore end of the thoracic member, and a forward portion having a forward fastening feature for attachment with respect to a second boney structure; and
a rotator attached with respect to the fore end of the thoracic member allowing specific and fixable rotational positioning transverse to the longitudinal axis of the head member with respect to the thoracic member;
whereby variable bidirectional adjustment may be obtained between the tail member fastening feature and the forward fastening feature.
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Accused Products
Abstract
The invention involves an osteogenic mandibular distraction device. The device is particularly suited for bucchal installation. The device comprises a thoracic member having a fore end and an aft end; a tail member slidably engaged to the thoracic member at the aft end thereof, thereby defining a longitudinal axis between the thoracic member and the tail member, and having a tail member fastening feature for attachment with respect to a first boney structure; an axial extender rotatably attached with respect to the thoracic member, extending therefrom in an aft direction, and engaged with respect to the tail member, whereby a distance between the thoracic member and the tail member may be variably established; a head member; and a rotator attached with respect to the fore end of the thoracic member allowing specific and fixable rotational positioning transverse to the longitudinal axis of the head member with respect to the thoracic member. The head member has a rear portion pivotably attached with respect to the fore end of the thoracic member, and a forward portion with a forward fastening feature for attachment with respect to a second boney structure.
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Citations
15 Claims
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1. An osteogenic mandibular distraction device for bucchal installation comprising:
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a thoracic member having a fore end and an aft end;
a tail member slidably engaged to the thoracic member at the aft end thereof, thereby defining a longitudinal axis between the thoracic member and the tail member, and having a tail member fastening feature for attachment with respect to a first boney structure;
an axial extender rotatably attached with respect to the thoracic member, extending therefrom in an aft direction, and engaged with respect to the tail member, whereby a distance between the thoracic member and the tail member may be variably established;
a head member having;
a rear portion pivotably attached with respect to the fore end of the thoracic member, and a forward portion having a forward fastening feature for attachment with respect to a second boney structure; and
a rotator attached with respect to the fore end of the thoracic member allowing specific and fixable rotational positioning transverse to the longitudinal axis of the head member with respect to the thoracic member;
whereby variable bidirectional adjustment may be obtained between the tail member fastening feature and the forward fastening feature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of osteogenic mandibular distraction comprising the steps of:
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obtaining a osteogenic mandibular distraction device having;
a thoracic member having a fore end and an aft end;
a tail member slidably engaged to the thoracic member at the aft end thereof, thereby defining a longitudinal axis between the thoracic member and the tail member, and having a tail member fastening feature for attachment with respect to a first boney structure;
an axial extender rotatably attached with respect to the thoracic member, extending therefrom in an aft direction, and engaged with respect to the tail member, whereby a distance between the thoracic member and the tail member may be variably established;
a head member having;
a rear portion pivotably attached with respect to the fore end of the thoracic member, and a forward portion having a forward fastening feature for attachment with respect to a second boney structure; and
a rotator attached with respect to the fore end of the thoracic member allowing specific and fixable rotational positioning transverse to the longitudinal axis of the head member with respect to the thoracic member;
severing the bone of the mandible in a transverse band thereby separating a labial portion of the mandible from a cranial portion of the mandible;
fixing the forward fastening feature with respect to the bone on one side of the separation in the mandible;
adjusting the rotator to a fixed, preferred rotational position between the head member and the thoracic member;
fixing the tail member fastening feature with respect to the bone on the opposite side of the separation in the mandible; and
over time, incrementally varying the axial distance between the thoracic member and the tail member;
thereby producing mandibular distraction. - View Dependent Claims (13, 14)
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15. An osteogenic distraction device for oral installation comprising:
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a thoracic member having a fore end and an aft end;
a tail member slidably engaged to the thoracic member at the aft end thereof, thereby defining a longitudinal axis between the thoracic member and the tail member, and having a tail member fastening feature for attachment with respect to a first boney structure;
an axial extender rotatably attached with respect to the thoracic member, extending therefrom in an aft direction, and engaged with respect to the tail member, whereby a distance between the thoracic member and the tail member may be variably established;
a head member having;
a rear portion pivotably attached with respect to the fore end of the thoracic member, and a forward portion having a forward fastening feature for attachment with respect to a second boney structure; and
a rotator attached with respect to the fore end of the thoracic member allowing specific and fixable rotational positioning transverse to the longitudinal axis of the head member with respect to the thoracic member;
whereby variable bidirectional adjustment may be obtained between the tail member fastening feature and the forward fastening feature.
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Specification