Size-adjustable head/neck MR surface coil with hinged upper section

A local coil for a magnetic resonance tomography system, the local coil comprising:

• an upper section and a lower section,
• wherein the upper section is hingeable relative to the lower section,
• wherein latching bars attached to both sides of the upper section strike against or rest against sprung plates on the lower section,
• wherein the latching bars and the sprung plates are configured to lock the upper section in a plurality of positions relative to the lower section, the plurality of positions being different than a closed position.

A local coil for a magnetic resonance tomography system, the local coil comprising:

• an upper section and a lower section,
• wherein the upper section is hingeable relative to the lower section around a hinged joint,
• wherein the hinged joint comprises at least one cutout with introduction surfaces for introducing elements of the upper section into a cutout in a hinge joint of the lower section, and
• wherein the introduction surfaces, at a cutout of the hinge joint on the lower section, for introduction of pins of the upper section, are at a greater distance from one another than introduction surfaces on elements of the upper section.

A local coil for a magnetic resonance tomography system, the local coil comprising:

• an upper section and a lower section,
• wherein the upper section is hingeable relative to the lower section around a hinged joint,
• wherein the hinged joint comprises at least one cutout with introduction surfaces for introducing elements of the upper section into a cutout in a hinge joint of the lower section, and
• wherein the introduction surfaces on the cutout in the hinge joint on the lower section are configured for introduction of pins of the upper section, introduction surfaces on elements of the upper section, or a combination thereof, so that the upper section is only placeable on the lower section at a specific angle or within an angular range.