C-arm mounting apparatus and X-ray imaging device with cage guide
A C-arm mounting apparatus for an x-ray imaging device includes a C-arm, a C-arm holding unit, and at least one cage guide unit. The at least one cage guide unit is moveably arranged between the C-arm and the C-arm holding unit. The C-arm is moveably mounted on the C-arm holding unit. The at least one cage guide unit includes a plurality of rolling bodies and at least one rolling body cage. The small overlap between the C-arm and the C-arm holding unit may facilitate greater rotations about an isocenter. An x-ray imaging device includes a C-arm mounting apparatus.
1. A C-arm mounting apparatus for an x-ray imaging device, the C-arm mounting apparatus comprising:
a C-arm;
a C-arm holding unit; and
at least one cage guide unit;
wherein the at least one cage guide unit is moveably arranged between the C-arm and the C-arm holding unit;
wherein the C-arm is moveably mounted on the C-arm holding unit; and
wherein the at least one cage guide unit comprises a plurality of rolling bodies, at least one rolling body cage, and a plurality of guide wires arranged at different variable angles.
2. The C-arm mounting apparatus of claim 1 , wherein the at least one cage guide unit is configured to generate a transmission ratio of greater than 1:2.
3. The C-arm mounting apparatus of claim 2 , wherein the transmission ratio is achieved through a configuration of the C-arm holding unit and the C-arm.
4. The C-arm mounting apparatus of claim 3 , wherein each of the C-arm holding unit and the C-arm comprises two guide wires, wherein each rolling body of the plurality of rolling bodies is configured to roll on the guide wires of the C-arm holding unit and the guide wires of the C-arm, and wherein the transmission ratio is achieved through a configuration of the guide wires of the C-arm holding unit and the guide wires of the C-arm.
5. The C-arm mounting apparatus of claim 2 , wherein the transmission ratio is achieved through a configuration of the plurality of rolling bodies.
6. The C-arm mounting apparatus of claim 5 , wherein each rolling body of the plurality of rolling bodies comprises a first rolling radius and a second rolling radius, wherein the first rolling radius defines a distance between a rolling body center and a point of support on the C-arm holding unit, wherein the second rolling radius defines a distance between the rolling body center and a point of support on the C-arm, and wherein the first rolling radius is less than the second rolling radius.
7. The C-arm mounting apparatus of claim 2 , wherein the transmission ratio is achieved through a configuration of the C-arm holding unit and the C-arm, and a configuration of the plurality of rolling bodies.
8. The C-arm mounting apparatus of claim 1 , wherein the at least one cage guide unit comprises an arcuate shape.
9. The C-arm mounting apparatus of claim 1 , further comprising at least one additional cage guide unit, wherein the C-arm is moveably arranged within the C-arm holding unit, and wherein the C-arm is mounted between the at least one cage guide unit and the at least one additional cage guide unit.
10. The C-arm mounting apparatus of claim 9 , wherein one of the at least one cage guide unit and the at least one additional cage guide unit is formed on a side of the C-arm facing an isocenter, and wherein the other of the at least one cage guide unit and the at least one additional cage guide unit is formed on a side of the C-arm facing away from the isocenter.
11. The C-arm mounting apparatus of claim 1 , further comprising at least one additional cage guide unit, wherein the C-arm is mounted on the C-arm holding unit in a carriage configuration between the at least one cage guide unit and the at least one additional cage guide unit.
12. The C-arm mounting apparatus of claim 11 , wherein the at least one cage guide unit and the at least one additional cage guide unit are equidistant from an isocenter.
13. An x-ray imaging device, comprising:
a C-arm mounting apparatus;
an x-ray emitter; and
an x-ray detector;
wherein the C-arm mounting apparatus comprises:
a C-arm;
a C-arm holding unit; and
at least one cage guide unit;
wherein the at least one cage guide unit is moveably arranged between the C-arm and the C-arm holding unit;
wherein the C-arm is moveably mounted on the C-arm holding unit; and
wherein the at least one cage guide unit comprises
a plurality of rolling bodies;
at least one rolling body cage; and
a plurality of guide wires arranged at different variable angles.
14. The x-ray imaging device of claim 13 , wherein the at least one cage guide unit is configured to generate a transmission ratio of greater than 1:2.
15. The x-ray imaging device of claim 14 , wherein each of the C-arm holding unit and the C-arm comprises two guide wires, wherein each rolling body of the plurality of rolling bodies is configured to roll on the guide wires of the C-arm holding unit and the guide wires of the C-arm, and wherein the transmission ratio is achieved through a configuration of the guide wires of the C-arm holding unit and the guide wires of the C-arm.
16. The x-ray imaging device of claim 13 , wherein each rolling body of the plurality of rolling bodies comprises a first rolling radius and a second rolling radius, wherein the first rolling radius defines a distance between a rolling body center and a point of support on the C-arm holding unit, wherein the second rolling radius defines a distance between the rolling body center and a point of support on the C-arm, and wherein the first rolling radius is less than the second rolling radius.
17. The x-ray imaging device of claim 13 , wherein the at least one cage guide unit comprises an arcuate shape.
18. The x-ray imaging device of claim 13 , wherein the C-arm mounting apparatus further comprises at least one additional cage guide unit, wherein the C-arm is moveably arranged within the C-arm holding unit, and wherein the C-arm is mounted between the at least one cage guide unit and the at least one additional cage guide unit.
19. The x-ray imaging device of claim 18 , wherein one of the at least one cage guide unit and the at least one additional cage guide unit is formed on a side of the C-arm facing an isocenter, and wherein the other of the at least one cage guide unit and the at least one additional cage guide unit is formed on a side of the C-arm facing away from the isocenter.
20. The x-ray imaging device of claim 18 , wherein the at least one cage guide unit and the at least one additional cage guide unit are equidistant from an isocenter.