# US 10,864,130 B2 · Patient support system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,864,130 B2 - Document ID: US10864130B2 - Status: Granted - Kind: B2 - Application number: 15/869,773 - Filed: 2018-01-12 - Published: 2018-05-17 - Granted: 2020-12-15 - Earliest claimed: 2013-12-04 - Assignees: Elekta Limited - Applicants: Elekta Limited - Inventors: Michael Lewald; Thomas Pfitzmaier - Web page: https://patentgrep.com/patent/US10864130B2 ## CPC - A61G 7/103: {Transfer boards} - A61B 5/055: involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging - A61B 5/704: {Tables} - A61B 6/0407: {Supports, e.g. tables or beds, for the body or parts of the body} - A61B 6/0487: {Motor-assisted positioning} - A61N 5/10: X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy (A61N5/01 takes precedence) - A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) ## Abstract Embodiments of the invention thus define a system and methods for moving a patient into a medical treatment/imaging apparatus. By appropriate use of relatively narrow guides, a bed can be held securely both prior to movement onto the apparatus and while on the apparatus. By use of relatively wide guides, the bed is allowed a degree of lateral play to ensure a smooth transition on to the apparatus. ## Claims ### Claim 1 A radiotherapy system, comprising: a bed configured to support a patient, the bed including at least one protrusion extending laterally from a side edge of the bed; a treatment table configured to support the bed during treatment; and a source of radiation configured to generate a beam of therapeutic radiation towards the patient during treatment, wherein the treatment table comprises a first plurality of rollers configured to guide movement of the bed over the treatment table, the first plurality of rollers comprising: a first roller arranged at a first longitudinal position along the treatment table; and a second roller arranged a second longitudinal position along the treatment table that is spaced apart from the first longitudinal position, wherein the first plurality of rollers is configured to allow lateral movement of the bed relative to the treatment table when the at least one protrusion is situated at the first longitudinal position and to prevent lateral movement of the bed relative to the treatment table when the at least one protrusion is arranged at the second longitudinal position. ### Claim 2 (depends on 1) The radiotherapy system according to claim 1, wherein the first plurality of rollers comprises a first pair of rollers arranged at the first longitudinal position and a second pair of rollers arranged at the second longitudinal position, each of the first and second pair of rollers comprising a first particular roller towards a first edge of the treatment table and a second particular roller towards a second, opposing edge of the treatment table. ### Claim 3 (depends on 2) The radiotherapy system according to claim 2, wherein the at least one protrusion comprises: a first protrusion extending laterally from a first side edge of the bed; and a second protrusion extending laterally from a second, opposing side edge of the bed, wherein a distance between outer edges of the first protrusion and second protrusion is greater than at least one of: a distance between the first particular roller and second particular roller of the first pair of rollers, or a distance between the first particular roller and second particular roller of the second pair of rollers. ### Claim 4 (depends on 1) The radiotherapy system according to claim 1, wherein the beam of therapeutic radiation is operational within a treatment volume, and wherein none of the first plurality of rollers is positioned within the treatment volume. ### Claim 5 (depends on 1) The radiotherapy system according to claim 1, further comprising: a patient support configured to support the bed not during treatment, the patient support comprising a second plurality of rollers configured to guide movement of the bed over the patient support. ### Claim 6 (depends on 5) The radiotherapy system according to claim 5, wherein the second plurality of rollers comprises one or more pairs of rollers, each pair of rollers comprising a first particular roller towards a first edge of the patient support and a second particular roller towards a second, opposing edge of the patient support. ### Claim 7 (depends on 1) The radiotherapy system according to claim 1, further comprising a medical imaging apparatus configured to provide imaging data of an imaging volume. ### Claim 8 (depends on 7) The radiotherapy system according to claim 7, wherein the first plurality of rollers is located outside of the imaging volume. ### Claim 9 (depends on 8) The radiotherapy system according to claim 8, wherein the beam of therapeutic radiation is operational within a treatment volume, and wherein the imaging volume at least partially overlaps with the treatment volume. ### Claim 10 (depends on 7) The radiotherapy system according to claim 7, wherein the medical imaging apparatus comprises a magnetic resonance imaging (MRI) scanner, and wherein the treatment table is positioned within a magnetic coil of the MRI scanner. ### Claim 11 (depends on 1) The radiotherapy system according to claim 1, wherein the bed is configured for movement in a longitudinal direction, relative to the treatment table. ### Claim 12 (depends on 1) The radiotherapy system according to claim 1, wherein the first roller is configured to engage with the side edge of the bed when the at least one protrusion is arranged at the second longitudinal position. ### Claim 13 (depends on 1) The radiotherapy system according to claim 1, wherein while the bed is supported on the treatment table, the at least one protrusion is configured to be situated a first distance away from a top surface of the treatment table and the first plurality of rollers is configured to be situated a second distance away from the top surface of the treatment table that is different than the first distance. ### Claim 14 (depends on 1) The radiotherapy system according to claim 1, wherein the at least one protrusion is situated at a foot end of the bed.