Marking grid for radiographic imaging, and method of making such a grid
First Claim
1. A method for making a marking grid for radiographic imaging, comprising the steps of:
- providing a substrate attached to a releasable backing, the substrate having a front side and a back side, the back side being releasably attached to the releasable backing, and the releasable backing defining a plurality of apertures spaced relative to each other along at least one marginal portion thereof;
registering the substrate and backing with at least one of a tool for cutting the substrate and a tool for applying a material that is at least partially radiopaque to the substrate by engaging the apertures in the backing with at least one rotatably driven drive member registered with said at least one tool; and
moving the substrate and backing relative to the at least one tool by rotatably driving the drive member and moving the tool relative to the substrate to perform at least one of the following additional steps;
(a) applying a material that is at least partially radiopaque to the substrate at predetermined locations on the substrate, and (b) forming apertures in the substrate extending between the predetermined locations of radiopaque material on the substrate.
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Abstract
A marking grid is provided for use in radiographic imaging, and a method is provided for manufacturing the marking grid. The marking grid is comprised of a radiolucent substrate with a pressure sensitive adhesive on one side, a plurality of parallel strips of radiopaque material fixed to the substrate on the side opposite the pressure sensitive adhesive, and apertures in the substrate between the parallel strips of radiopaque material. The substrate is provided on a releasable backing with a plurality of holes longitudinally spaced relative to each other, which can be used to register the position of the substrate in the equipment used to produce the marking grids.
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Citations
8 Claims
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1. A method for making a marking grid for radiographic imaging, comprising the steps of:
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providing a substrate attached to a releasable backing, the substrate having a front side and a back side, the back side being releasably attached to the releasable backing, and the releasable backing defining a plurality of apertures spaced relative to each other along at least one marginal portion thereof;
registering the substrate and backing with at least one of a tool for cutting the substrate and a tool for applying a material that is at least partially radiopaque to the substrate by engaging the apertures in the backing with at least one rotatably driven drive member registered with said at least one tool; and
moving the substrate and backing relative to the at least one tool by rotatably driving the drive member and moving the tool relative to the substrate to perform at least one of the following additional steps;
(a) applying a material that is at least partially radiopaque to the substrate at predetermined locations on the substrate, and (b) forming apertures in the substrate extending between the predetermined locations of radiopaque material on the substrate. - View Dependent Claims (2, 3, 4)
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5. A method for making a marking grid for radiographic imaging, comprising the steps of:
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providing a substrate attached to a releasable backing, the substrate having a front side and a back side, the back side being releasably attached to the releasable backing, and the releasable backing defining a plurality of apertures spaced relative to each other along at least one marginal portion thereof;
registering the substrate and backing with a first tool head for applying a material to the substrate that is at least partially radiopaque by engaging the apertures in the backing with drive means registered with said first tool head;
applying a material that is at least partially radiopaque to the substrate at predetermined locations on the substrate using the first tool head;
moving the substrate and backing relative to the first tool head by driving the drive means to move the substrate relative to the first tool head;
registering the substrate and backing with a second tool head for cutting the substrate by engaging the apertures in the backing with drive means registered with said second tool head;
forming apertures in the substrate extending between the predetermined locations of radiopaque material on the substrate by cutting the substrate using the second tool head; and
moving the substrate and backing relative to the second tool head by driving the drive means to move the substrate relative to the second tool head. - View Dependent Claims (6, 7, 8)
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Specification