Orbital clutch and brake assembly for C-arm of imaging system
First Claim
Patent Images
1. An X-ray imaging system, comprising:
- an X-ray radiation source;
an X-ray detector;
a C-arm having the X-ray radiation source disposed on a first end and the X-ray detector disposed on a second end opposite the first end;
a C-arm rotation device configured to enable the C-arm to rotate in an orbital direction relative to the C-arm rotation device; and
an orbital clutch and brake assembly coupled to the C-arm rotation device, wherein the orbital clutch and brake assembly is spring loaded into the C-arm and configured to apply both a drag force and a braking force on the C-arm that is consistent along the C-arm in the orbital direction regardless of variations in a cross-sectional profile of the C-arm in the orbital direction, wherein the orbital clutch and brake assembly comprises a spring loaded roller which acts as a clutch via its rolling resistance, and the orbital clutch and brake assembly comprises a brake pad, and wherein the brake pad is configured to directly contact the roller and to not contact the C-arm when the braking force is applied.
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Abstract
A device is provided. The device includes an orbital clutch and brake assembly configured to couple to a C-arm rotation device that enables the C-arm to rotate in an orbital direction relative to the C-arm rotation device. The orbital clutch and brake assembly includes a housing, a roller, and a brake pad. The roller and brake pad are disposed within the housing. The brake pad is configured to directly contact the roller and to not contact the C-arm when the orbital clutch and brake assembly applies a braking force to the C-arm.
4 Citations
17 Claims
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1. An X-ray imaging system, comprising:
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an X-ray radiation source; an X-ray detector; a C-arm having the X-ray radiation source disposed on a first end and the X-ray detector disposed on a second end opposite the first end; a C-arm rotation device configured to enable the C-arm to rotate in an orbital direction relative to the C-arm rotation device; and an orbital clutch and brake assembly coupled to the C-arm rotation device, wherein the orbital clutch and brake assembly is spring loaded into the C-arm and configured to apply both a drag force and a braking force on the C-arm that is consistent along the C-arm in the orbital direction regardless of variations in a cross-sectional profile of the C-arm in the orbital direction, wherein the orbital clutch and brake assembly comprises a spring loaded roller which acts as a clutch via its rolling resistance, and the orbital clutch and brake assembly comprises a brake pad, and wherein the brake pad is configured to directly contact the roller and to not contact the C-arm when the braking force is applied. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device, comprises:
an orbital clutch and brake assembly configured to couple to a C-arm rotation device that enables the C-arm to rotate in an orbital direction relative to the C-arm rotation device, wherein the orbital clutch and brake assembly comprises; a housing; a roller; a brake pad, wherein the roller and brake pad are disposed within the housing, and the brake pad is configured to directly contact the roller and to not contact the C-arm when the orbital clutch and brake assembly applies a braking force to the C;
arm; anda shaft having a threaded portion, the shaft is coupled to the brake pad via the threaded portion, rotation of the shaft in a first direction is configured to cause the brake pad to contact the roller to apply the braking force, and rotation of the shaft in a second direction is configured to cause the brake pad to not contact the roller. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A device, comprises:
an orbital clutch and brake assembly configured to couple to a C-arm rotation device that enables the C-arm to rotate in an orbital direction relative to the C-arm rotation device, wherein the orbital clutch and brake assembly comprises; a housing; a plurality of springs; a roller; and a brake pad, wherein the roller and brake pad are disposed within the housing, the plurality of springs are disposed on an outside of the housing, and the plurality of springs is configured to spring load the orbital clutch and brake assembly into the C-arm to enable the orbital clutch and brake assembly to apply both a drag force and a braking force on the C-arm that is consistent along the C-arm in the orbital direction regardless of variations in a cross-sectional profile of the C-arm in the orbital direction. - View Dependent Claims (16, 17)
Specification