Device for intramedullary nailing of the tibia
The invention relates to a device for intramedullary nailing of the tibia which comprises the frame of a framework which consists of vertical supports ( 2 ) and longitudinal ( 3, 4 ) and transverse horizontal supports ( 5, 5′, 5″, 6, 6′ ) and a guide ( 21 ): which is slidably coupled to the longitudinal horizontal support ( 4 ) of the device. The guide ( 21 ) comprises a first finder ( 11 ) for adjusting the position of the traction needle ( 20 ) in the lateral direction, and a second finder ( 13 ) for adjusting the position of the traction needle ( 20 ) in the vertical direction and for passing the traction needle ( 20 ) through the tibia in the transverse direction of the tibia, and attachment arms ( 22, 24 ) attached to the frame, to which the ends of the traction needle ( 20 ) outside the tibia are attached.
1 . A device for intramedullary nailing of a tibia, the device comprising:
a base;
a frame including vertical supports attached to the base, longitudinal horizontal supports attached to the vertical supports, and transverse horizontal supports attached to the vertical supports;
wherein the vertical supports include a first vertical support, a second vertical support, a third vertical support, and a fourth vertical support;
wherein the longitudinal horizontal supports include a first longitudinal horizontal support and a second longitudinal horizontal support, wherein the first longitudinal horizontal support is attached to the first vertical support and the second vertical support, and wherein the second longitudinal horizontal support is attached to the third vertical support and the fourth vertical support; and
wherein the transverse horizontal supports include a first transverse horizontal support and a second transverse horizontal support, wherein the first transverse horizontal support is attached to the first vertical support and the third vertical support, and wherein the second transverse horizontal support is attached to the second vertical support and the fourth vertical support;
a traction needle configured to be passed through the tibia;
a guide slidably coupled to one of the longitudinal horizontal supports, the guide including:
a first finder for adjusting a position of the traction needle in a lateral direction with respect to a joint surface of an upper part of the tibia; and
a second finder for adjusting the position of the traction needle in a vertical direction and for passing the traction needle through the tibia in a transverse direction of the tibia; and
attachment arms configured to be attached to the frame and to an end of the traction needle when the end is passed through the tibia in the transverse direction by using the guide.
2 . The device according to claim 1 , wherein the attachment arms include first attachment arms for attaching to the traction needle when inserted in a lower part of the tibia, wherein the first attachment arms are attached to a movable transverse horizontal support, the movable transverse horizontal support being slidably attached between the first longitudinal horizontal support and the second longitudinal horizontal support of the frame.
3 . The device according to claim 2 , wherein a guide carriage facilitates sliding movement of the movable transverse horizontal support along the first longitudinal horizontal support and the second longitudinal horizontal support.
4 . The device according to claim 3 , wherein the first longitudinal horizontal support and the second longitudinal horizontal support include upper longitudinal horizontal supports and lower longitudinal horizontal supports, wherein the lower longitudinal horizontal supports act as slide rails for the guide carriage.
5 . The device according to claim 2 , wherein the movable transverse horizontal support is configured to be turned forwards and backwards such that the first attachment arms are configured to be turned to forward and rearward positions.
6 . The device according to claim 1 , wherein the attachment arms include second attachment arms for attaching to the traction needle when inserted in an upper part of the tibia, wherein the second attachment arms are attached to the first transverse horizontal support of the transverse horizontal supports, the first transverse horizontal support being attached between two of the first vertical support and the third vertical support in a fixed manner.
7 . The device according to claim 6 , wherein the first transverse horizontal support is configured to be turned forwards and backwards such that the second attachment arms attached to the first transverse horizontal support is configured to be turned to forward and rearward positions.
8 . The device according to claim 1 , wherein the guide includes the first finder attached with a first sleeve and the second finder attached with a second sleeve for passing the traction needle through a lower part and an upper part of the tibia, respectively.
9 . The device according to claim 7 , wherein a vertical height adjustment part is connected to the guide, wherein the vertical height adjustment part is attached at its upper part to the first sleeve or to a separate attachment element in the guide, and at its lower part to the second sleeve, wherein the first finder and the second finder are in the guide at different adjustable heights.
10 . The device according to claim 1 , wherein the attachment arms are attached to the transverse horizontal supports by rings surrounding the transverse horizonal supports, the rings defining a threaded hole through which a screw can be tightened to the bottom of a groove to keep the attachment arms in place.
11 . The device according to claim 1 , wherein the first longitudinal horizontal support is spaced from the base at approximately the same distance as the second longitudinal horizontal support is spaced from the base.