Craniofacial external distraction apparatus

Patent metadata

Field	Value
Publication number	US-10426517-B2
Application number	US-201715646487-A
Country	US
Kind code	B2
Filing date	Jul 11, 2017
Priority date	Feb 27, 2014
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

An external distraction apparatus for performing a craniofacial distraction is disclosed. The external distraction apparatus may comprise a stationary member. The stationary member may be configured to be affixed to a head of a patient. The external distraction apparatus may also comprise laterally disposed distractors. The laterally disposed distractors may extend inferiorly from the stationary member and be moveable relative to the stationary member. The external distraction apparatus may comprise a motor and controller. The motor may be powered with the controller to perform a craniofacial distraction in an automated fashion.

First claim

What is claimed is:

1. A craniofacial external distraction apparatus comprising:
a stationary member configured to be affixed to a head of a patient and having a halo portion, the stationary member configured to be affixed to a first lateral side of the head via a first fixation and to a second lateral side of the head via a second fixation, the halo portion configured to be operatively coupled to the first fixation and the second fixation and traversing therebetween via a front side of the head and superior to eyes of the patient;
a first upright body configured to be coupled to the stationary member adjacent to the first lateral side of the head, the first upright body inferior to the stationary member;
a second upright body configured to be coupled to the stationary member adjacent to the second lateral side of the head, the second upright body inferior to the stationary member;
a first arm member coupled to the first upright body, the first arm member extending anteriorly; and
a second arm member coupled to the second upright body, the second arm member extending anteriorly, wherein:
the first arm member includes an anterior portion and a posterior portion,
the anterior portion is pivotally coupled to the posterior portion via a pivot, and
the pivot is a harmonic drive assembly.

2. The craniofacial external distraction apparatus according to claim 1 , wherein the stationary member and the first and second arms are disposed in spaced relation relative to each other to leave a substantially unobstructed horizontal view by the patient.

3. The craniofacial external distraction apparatus according to claim 1 , further comprising:
a first inferior arm coupled to the first arm member; and
a second interior arm coupled to the second arm member.

4. The craniofacial external distraction apparatus according to claim 3 , wherein the first inferior arm is in sliding engagement with the first arm member.

5. The craniofacial external distraction apparatus according to claim 4 , wherein the second inferior arm is in sliding engagement with the second arm member.

6. The craniofacial external distraction apparatus according to claim 1 , wherein the first arm member is moveable relative to the first upright body.

7. The craniofacial external distraction apparatus according to claim 1 , wherein the first arm member is moveable relative to the first upright body along an axis parallel to a sagittal plane of the head of the patient.

8. The craniofacial external distraction apparatus according to claim 1 , wherein the first arm member is moveable relative to the first upright body along an axis parallel to a longitudinal axis of the head of the patient.

Assignees

• Deka Products Lp

Inventors

• Langenfeld Christopher C
• Smith Iii Stanley B
• Altobelli David E

Classifications

• A61B2017/00022

  Sensing or detecting at the treatment site · CPC title

• A61B17/645

  comprising a framework (A61B17/6425, A61B17/6441 take precedence) · CPC title

• A61B17/64

  Devices extending alongside the bones to be positioned · CPC title

• A61B17/62

  Ring frames, i.e. devices extending around the bones to be positioned ({A61B17/6433} , A61B17/66 take precedence) · CPC title

• A61B17/66 Primary

  {Alignment}, compression or distraction mechanisms · CPC title