초록 ▼

A tomography system may be used to scan a subject and provide reconstructed images of the subject. A gantry of the tomography system has a rotary member that is rotatable around an axis. While the rotary member rotates, a skid layer provides safety features between the rotary member and a subject-fa

A tomography system may be used to scan a subject and provide reconstructed images of the subject. A gantry of the tomography system has a rotary member that is rotatable around an axis. While the rotary member rotates, a skid layer provides safety features between the rotary member and a subject-facing scan window.

대표청구항 ▼

1. A gantry, comprising: a stationary structure having a bore extending therethrough;a scan window within the bore, attached to the stationary structure;a rotary member attached to the stationary structure, wherein the rotary member rotates around the bore; anda skid layer between the rotary member

1. A gantry, comprising: a stationary structure having a bore extending therethrough;a scan window within the bore, attached to the stationary structure;a rotary member attached to the stationary structure, wherein the rotary member rotates around the bore; anda skid layer between the rotary member and the scan window. 2. The gantry of claim 1, wherein the skid layer is attached to the rotary member. 3. The gantry of claim 1, wherein the skid layer is attached to the stationary structure. 4. The gantry of claim 1, wherein the skid layer prevents contact between the scan window and the rotary member. 5. The gantry of claim 1, wherein the scan window comprises low-attenuation material. 6. The gantry of claim 5, wherein the low-attenuation material is polycarbonate. 7. The gantry of claim 1, wherein the skid layer comprises carbon fiber or aluminum. 8. The gantry of claim 1, further comprising: an x-ray source and an x-ray detector attached to the rotary member; andwherein the x-ray source emits x-rays toward a subject and the x-ray detector receives x-rays attenuated by the subject and the scan window. 9. The gantry of claim 8, wherein the skid layer comprises openings to allow x-rays to pass through un-attenuated to the scan window and the x-ray detector. 10. The gantry of claim 8, wherein the emitted x-rays are partially attenuated by the skid layer. 11. The gantry of claim 1, wherein the skid layer is disposed around the entire circumference of the bore. 12. The gantry of claim 1, wherein the skid layer is disposed around a partial circumference of the bore. 13. The gantry of claim 1, wherein the skid layer further comprises a plurality of corrugations. 14. The gantry of claim 1, wherein the bore-facing surface of the skid layer is substantially smooth. 15. The gantry of claim 1, wherein the skid layer comprises multiple skid pieces. 16. A rotary member, comprising: a frame to which tomography components may be attached;a bore extending through the center of the frame, wherein the frame rotates around the bore;a skid layer attached to the inner, bore-facing side of the frame;wherein the bore-facing surface of the skid layer is substantially smooth; andwherein the skid layer prevents access to the interior of the frame from the bore. 17. The rotary member of claim 16, wherein the skid layer comprises multiple skid pieces. 18. The rotary member of claim 16, wherein the skid layer is disposed around the entire circumference of the bore. 19. The rotary member of claim 16, wherein the skid layer is disposed around a partial circumference of the bore. 20. The rotary member of claim 16, further comprising: an x-ray source and an x-ray detector attached to the frame; andwherein the x-ray source emits x-rays toward a subject in the bore and the x-ray detector receives x-rays attenuated by the subject; andwherein the skid layer comprises openings to allow x-rays to pass through un-attenuated to the subject and the x-ray detector.