US 11,717,238 B2
Couch top extension for radiation therapy and imaging
Reto W. Filiberti, Baar (CH); Martin Feusi, Greifensee (CH); Niklaus Schär, Wikon (CH); and Christoph Müller, Lengnau (CH)
Assigned to Siemens Healthineers International AG, Steinhausen (CH)
Filed by Varian Medical Systems International AG, Steinhausen (CH)
Filed on Dec. 15, 2019, as Appl. No. 16/714,753.
Prior Publication US 2021/0177362 A1, Jun. 17, 2021
Int. Cl. A61B 6/04 (2006.01); A61B 6/00 (2006.01); A61G 7/05 (2006.01); A61G 13/12 (2006.01); A61G 13/10 (2006.01)
CPC A61B 6/0407 (2013.01) [A61B 6/44 (2013.01); A61B 6/46 (2013.01); A61G 7/05 (2013.01); A61G 13/10 (2013.01); A61G 13/129 (2013.01); A61G 13/1285 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A couch top extension, comprising:
an extension board extending from a first end to a second end, the extension board including a first section adjacent to the first end, a second section extending from the first section, and an interface surface at an end surface of the first end, the interface surface perpendicular to a longitudinal axis extending through the extension board from the first end to the second end, the first section having a varying shape profile and the second section having a substantially uniform shape profile;
an attachment frame attached to the interface surface, the attachment frame being configured to removably attach the extension board to a positioning device; and
an array of magnetic elements arranged in a pattern on the interface surface of the extension board, the pattern extending outwardly away from the end surface of the first end of the extension board toward a side surface of an interface plate of the positioning device, the array of magnetic elements configured to generate electromagnetic field signals detectable by an array of sensing elements disposed on the side surface of the interface plate opposite the interface surface, the electromagnetic field signals indicative of an identification of the extension board;
wherein the interface surface of the extension board is configured to be coupled to the side surface of the interface plate.
 
10. The couch top extension of claim 1, further comprising:
a frame insert cover coupled to a top portion of the attachment frame;
one or more front recess covers configured to be coupled to one or more front recesses defined by the end surface of the first end of the extension board, the one or more front recesses configured to receive one or more corresponding projections of the interface plate; and
a center cover configured to be coupled to the end surface of the first end of the extension board and to cover the array of magnetic elements.
 
20. A couch top, comprising:
an interface plate configured to attach to a positioning device, the interface plate including an array of sensing elements disposed on a side surface of the interface plate;
an extension board extending from a first end to a second end, the extension board including a first section adjacent to the first end, a second section extending from the first section, and an interface surface at an end surface of the first end, the interface surface perpendicular to a longitudinal axis extending through the extension board from the first end to the second end, wherein the first section has a varying shape profile and the second section has a substantially uniform shape profile;
an attachment frame attached to the interface surface, the attachment frame being configured to removably attach the extension board to the interface plate; and
an array of magnetic elements arranged in a pattern on the interface surface, the pattern extending outwardly away from the end surface of the first end of the extension board toward the side surface of the interface plate, the array of magnetic elements configured to generate electromagnetic field signals detectable by an array of sensing elements disposed on the side surface of the interface plate opposite the interface surface, the electromagnetic field signals indicative of an identification of the extension board;
wherein the interface surface of the extension board is configured to be coupled to the side surface of the interface plate.