# US 12,758,169 B2 · Dual source CT machine and drum for dual source CT machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,758,169 B2 - Document ID: US12758169B2 - Status: Granted - Kind: B2 - Application number: 18/869,150 - Filed: 2023-05-10 - Published: 2025-11-13 - Granted: 2026-10-13 - Earliest claimed: 2022-05-30 - Assignees: Siemens Shanghai Medical Equipment Ltd. - Applicants: Siemens Shanghai Medical Equipment Ltd. - Inventors: Li Mei Fan; Tie Biao Zhu; Jing Ming Zheng - Web page: https://patentgrep.com/patent/US12758169B2 ## CPC - A61B 6/4014: {arranged in multiple source-detector units} - A61B 6/035: {Mechanical aspects of CT} - A61B 6/4435: {the source unit and the detector unit being coupled by a rigid structure} - A61B 6/56: {Details of data transmission or power supply, e.g. use of slip rings} - A61B 6/503: {for diagnosis of the heart} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The disclosure discloses a dual source CT machine and a drum therefor. The drum is mounted to an outer rim of a bearing, and an inner rim of the bearing is mounted to a gantry of the dual source CT machine. ## Claims ### Claim 1 A drum for a dual source CT machine, the drum being mounted to an outer rim of a bearing, and an inner rim of the bearing being mounted to a gantry of the dual source CT machine, the drum comprising: a ring-shaped front drum comprising: a first side surface and a second side surface opposite to one other; a first system mounting area configured for a first X-ray tube system to be mounted; a second system mounting area configured for a second X-ray tube system to be mounted, wherein the first system mounting area and the second system mounting area are arranged on the first side surface of the ring-shaped front drum; and a front flange extending in an axial direction from an inner ring edge of the ring-shaped front drum, wherein the front flange is formed on the second side surface of the ring-shaped front drum; and a ring-shaped rear drum comprising: a third side surface and a fourth side surface opposite to one other; a first component mounting area configured for a first set of components matching the first X-ray tube system to be mounted; and a second component mounting area configured for a second set of components matching the second X-ray tube system to be mounted, wherein the first component mounting area and the second component mounting area are arranged on the third side surface of the ring-shaped rear drum; and a rear flange extending in the axial direction from an inner ring edge of the ring-shaped rear drum, and wherein the rear flange is formed on the fourth side surface of the ring-shaped rear drum, wherein the ring-shaped front drum and the ring-shaped rear drum are arranged coaxially, wherein the front flange and the rear flange face one other, wherein the ring-shaped front drum is connected to the bearing via the front flange, and wherein the ring-shaped rear drum is connected to the bearing via the rear flange. ### Claim 2 (depends on 1) The drum according to claim 1, wherein the first system mounting area comprises: a first tube mounting area configured for a first tube to be mounted; and a first detector mounting area configured for a first detector to be mounted, wherein a first X-ray path is formed between the first tube and the first detector, and wherein the second system mounting area comprises: a second tube mounting area configured for a second tube to be mounted; and a second detector mounting area configured for a second detector to be mounted, wherein a second X-ray path is formed between the second tube and the second detector, wherein the first X-ray path and the second X-ray path are each perpendicular to the axial direction, and wherein an angle between the first X-ray path and the second X-ray path is between 45 degrees and 135 degrees. ### Claim 3 (depends on 2) The drum according to claim 2, wherein each of the first tube mounting area and the second tube mounting area has a respective through hole such that the first tube mounted in the first tube mounting area and the second tube mounted in the second tube mounting area pass through the through holes of the first tube mounting area and the second tube mounting area, respectively, and are mounted to the ring-shaped front drum. ### Claim 4 (depends on 1) The drum according to claim 1, wherein: the ring-shaped front drum comprises at least one front protrusion protruding from the first side surface, the at least one front protrusion is arranged around and in contact with at least one X-ray tube system of the first X-ray tube system and the second X-ray tube system; and/or the ring-shaped rear drum comprises at least one rear protrusion protruding from the third side surface, and the at least one rear protrusion is arranged around and in contact with at least one set of components of the first set of components and the second set of components. ### Claim 5 (depends on 4) The drum according to claim 4, wherein the at least one front protrusion is arranged on a radial outer side of the at least one X-ray tube system. ### Claim 6 (depends on 4) The drum according to claim 4, wherein the at least one rear protrusion is arranged on a radial outer side of the at least one set of components. ### Claim 7 (depends on 1) The drum according to claim 1, wherein a balance weight is mounted at a position on the second side surface of the ring-shaped front drum staggered from the first system mounting area and the second system mounting area located on the first side surface. ### Claim 8 (depends on 1) The drum according to claim 1, wherein one or more grooves are arranged on circumferential surfaces of inner holes of the ring-shaped front drum and the ring-shaped rear drum, and wherein the first X-ray tube system and the second X-ray tube system are respectively connected to the first set of components and the second set of components via cables extending through the one or more grooves. ### Claim 9 (depends on 1) The drum according to claim 1, wherein each of the first component mounting area and the second component mounting area comprises: a high voltage generator mounting area configured for a high voltage generator to be mounted; a high pressure tank mounting area configured for a high pressure tank to be mounted; and a tube cooling system mounting area configured for a tube cooling system to be mounted, wherein the first component mounting area and the second component mounting area are arranged symmetrically with respect to a center of the ring-shaped rear drum. ### Claim 10 (depends on 1) The drum according to claim 1, wherein a balance weight is mounted at a position on the fourth side surface of the ring-shaped rear drum staggered from the first component mounting area and the second component mounting area located on the third side surface.