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US 2017/0090043 A1Published application
Storage phosphor plate assembly, x-ray cassette and system for reading out storage phosphor plates
AssigneeAgfa Healthcare NV
InventorsAnton PIRMANN, Stephan MAIR
Life of this patent
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Abstract
A storage phosphor plate assembly includes at least one storage phosphor plate having a storage phosphor layer for storing X-ray information and a substrate layer on which the storage phosphor layer is provided. The substrate layer contains a permanent magnetic material, and a support plate contains a magnetic material, the at least one storage phosphor plate being held on the support plate due to magnetic forces. The invention further relates to an X ray cassette and a system for reading out storage phosphor plate. An easy and safe handling of storage phosphor plates of various sizes and/or forms, in particular during the read-out process in the read-out system, is achieved.
Claims16
1-15. (canceled)
16:
- A storage phosphor plate assembly comprising:
- at least one storage phosphor plate including a storage phosphor layer that stores X-ray information, and a substrate layer including a permanent magnetic material on which the storage phosphor layer is provided;
- and
- a support plate including a magnetic material;
- wherein
- the at least one storage phosphor plate is held on the support plate by magnetic forces.
3 more elements
17:
- The storage phosphor plate assembly according to claim 16, wherein the permanent magnetic material in the substrate layer is a ferromagnetic material exhibiting a coercive field strength higher than 70 kA/m and/or a remanence higher than 100 mT.
18:
- The storage phosphor plate assembly according to claim 16, wherein the substrate layer is a flexible layer.
19:
- The storage phosphor plate assembly according to claim 16, wherein the magnetic material in the support plate is a ferromagnetic material and/or a ferrimagnetic material.
20:
- The storage phosphor plate assembly according to claim 16, wherein the support plate includes a layer of steel.
21:
- The storage phosphor plate assembly according to claim 16, wherein the support plate is a rigid plate.
22:
- The storage phosphor plate assembly according to claim 16, wherein the support plate has a thickness between 200 μm and 400 μm.
23:
- The storage phosphor plate assembly according to claim 16, further comprising at least one marking element provided on the support plate and/or on the storage phosphor plate;
- wherein
- the at least one marking element identifies the storage phosphor plate and/or X-ray information stored in the storage phosphor plate.
24:
- The storage phosphor plate assembly according to claim 23, wherein the at least one marking element includes a permanent magnetic material and is held on the support plate by magnetic forces.
25:
- The storage phosphor plate assembly according to claim 23, wherein the storage phosphor layer emits emission light upon irradiation with stimulating light;
- and
- the at least one marking element includes a fluorescent material that emits fluorescent light upon irradiation with the stimulating light.
26:
- An X-ray cassette comprising:
- a housing in which the storage phosphor plate assembly according to claim 16 is accommodated.
27:
- A system for reading out X-ray information stored in a storage phosphor plate, the system comprising:
- the storage phosphor plate assembly according to claim 16;
- a read-out device that irradiates the at least one storage phosphor plate with stimulating light and that detects emission light which is stimulated in the at least one storage phosphor plate;
- and
- a transport device that transports the storage phosphor plate assembly relative to the read-out device.
2 more elements
28:
- The system according to claim 27, wherein the transport device includes at least one magnetic element coupled to the support plate by magnetic forces.
29:
- The system according to claim 28, wherein the transport device includes at least one roller that rotates about a rotational axis of the at least one roller;
- and
- the magnetic element is provided on the at least one roller and/or inside of the at least one roller.
30:
- The system according to claim 27, wherein the read-out device irradiates at least one marking element provided on the support plate and/or on the at least one storage phosphor plate with stimulating light and detects fluorescent light emitted by the at least one marking element upon irradiation with the stimulating light.