Mandibular fixation device
First Claim
1. A mandibular fixation device comprising:
- a sleeve having two ends respectively provided with a first screw hole and a second screw hole, wherein the first screw hole has a spiral direction opposite to a spiral direction of the second screw hole;
a first screw rod having a first threaded portion and a first assembly portion, wherein the first threaded portion is threadedly engaged with the first screw hole, wherein the first assembly portion is located outside of the sleeve;
a second screw rod having a second threaded portion and a second assembly portion, wherein the second threaded portion is threadedly engaged with the second screw hole, wherein the second assembly portion is located outside of the sleeve; and
two positioning members coupled with the first and second assembly portions, respectively, wherein each of the two positioning members comprises a rotating member, wherein the rotating member comprises an upper screwing tab and a lower screwing tab, wherein the upper screwing tab has a through-hole, wherein the lower screwing tab has a screwing hole, wherein the first assembly portion of the first screw rod or the second assembly portion of the second screw rod is in a form of a protruding ring and extends into a space between the upper screwing tab and the lower screwing tab, and wherein a screw extends through the through-hole of the upper screwing tab and the first or second assembly portion, and is threadedly engaged with the screwing hole of the lower screwing tab.
1 Assignment
0 Petitions
Accused Products
Abstract
A mandibular fixation device overcomes the low operability of the conventional mandibular fixation device. The mandibular fixation device includes a sleeve, a first screw rod, a second screw rod and two positioning members. The sleeve includes two ends respectively provided with first and second screw holes. The first and second screw holes have opposite spiral directions. The first screw rod has a first threaded portion and a first assembly portion. The first threaded portion is threadedly engaged with the first screw hole, and the first assembly portion is located outside of the sleeve. The second screw rod has a second threaded portion and a second assembly portion. The second threaded portion is threadedly engaged with the second screw hole, and the second assembly portion is located outside of the sleeve. The two positioning members are coupled with the first and second assembly portions, respectively.
7 Citations
9 Claims
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1. A mandibular fixation device comprising:
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a sleeve having two ends respectively provided with a first screw hole and a second screw hole, wherein the first screw hole has a spiral direction opposite to a spiral direction of the second screw hole; a first screw rod having a first threaded portion and a first assembly portion, wherein the first threaded portion is threadedly engaged with the first screw hole, wherein the first assembly portion is located outside of the sleeve; a second screw rod having a second threaded portion and a second assembly portion, wherein the second threaded portion is threadedly engaged with the second screw hole, wherein the second assembly portion is located outside of the sleeve; and two positioning members coupled with the first and second assembly portions, respectively, wherein each of the two positioning members comprises a rotating member, wherein the rotating member comprises an upper screwing tab and a lower screwing tab, wherein the upper screwing tab has a through-hole, wherein the lower screwing tab has a screwing hole, wherein the first assembly portion of the first screw rod or the second assembly portion of the second screw rod is in a form of a protruding ring and extends into a space between the upper screwing tab and the lower screwing tab, and wherein a screw extends through the through-hole of the upper screwing tab and the first or second assembly portion, and is threadedly engaged with the screwing hole of the lower screwing tab. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification