Bone distractor with ratchet mechanism
First Claim
Patent Images
1. A bone distractor for distracting bone on opposite sides of an osteotomy of said bone, comprising:
- a first affixation member for affixation to said bone on one side of said osteotomy;
a second affixation member for affixation to said bone on another side of said osteotomy;
a rotatable member engaging said first affixation member and said second affixation member for distracting said first and second affixation members relative to each other in response to rotation of said rotatable member; and
a ratchet mechanism selectively engaging said rotatable member, said ratchet mechanism limiting rotation of said rotatable member in a first direction in one position and permitting rotation in said first direction in another position.
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Accused Products
Abstract
A bone distractor for distracting bone on opposite sides of an osteotomy of the bone include a first affixation member for affixation to the bone on one side of the osteotomy and a second affixation member for affixation to the bone on another side of the osteotomy. A drive screw has a rotatable member engaging the first and second affixation members for distracting the first and second affixation members relative to each other in response to rotation of the rotatable member. A ratchet mechanism selectively limits rotation of the drive screw in one direction.
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Citations
30 Claims
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1. A bone distractor for distracting bone on opposite sides of an osteotomy of said bone, comprising:
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a first affixation member for affixation to said bone on one side of said osteotomy;
a second affixation member for affixation to said bone on another side of said osteotomy;
a rotatable member engaging said first affixation member and said second affixation member for distracting said first and second affixation members relative to each other in response to rotation of said rotatable member; and
a ratchet mechanism selectively engaging said rotatable member, said ratchet mechanism limiting rotation of said rotatable member in a first direction in one position and permitting rotation in said first direction in another position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A bone distractor for distracting bone on opposite sides on an osteotomy of said bone, comprising:
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a first affixation member for affixation to said bone on one side of said osteotomy;
a second affixation member for affixation to said bone on another side of said osteotomy;
a rotatable member engaging said first affixation member and said second affixation member for distracting said first and second affixation members relative to each other in response to rotation of said rotatable member; and
a ratchet mechanism selectively engaging said rotatable member, said ratchet mechanism limiting rotation of said rotatable member in a first direction and permitting rotation in a second direction. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A bone distractor for distracting bone on opposite sides of an osteotomy of said bone, comprising:
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a first affixation member for affixation to said bone on one side of said osteotomy;
a second affixation member for affixation to said bone on another side of said osteotomy;
a rotatable member engaging said first affixation member and said second affixation member for distracting said first and second affixation members relative to each other in response to rotation of said rotatable member; and
a longitudinal extension coupled to said rotatable member and adapted to transmit torque to said rotatable member, said longitudinal extension having a series of interlocking links. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification