Method and apparatus for marking skin with ink

Claim 3

The device of claim 1 wherein a second ink layer defining said pattern is further disposed on said first surface of said substrate.

Claim 4

The device of claim 1 wherein said substrate is made of fibrous, breathable material.

Claim 5

The device of claim 3 wherein said fibrous, breathable material is printable spun-bonded nylon.

Claim 6

The device of claim 1 wherein said substrate is substantially transparent so that said ink layer defining said pattern is observable while said substrate is in contact with a patient's skin.

Claim 7

The device of claim 1 wherein said substrate is of substantially circular shape with a circular cut-out center such that the substrate is defined by a circular outer edge and a circular inner edge both of which circular edges share a common center point such that said pattern defined by said ink layer is comprised of lines extending from the inner edge to the outer edge along imaginary lines extending radially from the common center point to the circular outer edge.

Claim 8

The device of claim 6 wherein said wedge cut from said substrate is a ninety degree wedge so that the corner boundary delineated by said pattern is a ninety degree corner boundary.

Claim 9

The device of claim 1 wherein said substrate is of substantially circular shape with a wedge cut therefrom so that the substrate may be used to delineate a corner boundary such that said pattern defined by said ink layer is comprised of lines on edges outlining the corner boundary.

Claim 10

The device of claim 1 wherein said substrate is of substantially rectangular shape wherein the length of the rectangle is several times the width of the rectangle such that said pattern defined by said ink layer is comprised of a straight line.

Claim 11

The device of claim 9 wherein said angle is ninety degrees so that the lines comprising said pattern are perpendicular to one another so as to define at least one ninety degree angle.

Claim 12

The device of claim 1 wherein said pattern defined by said ink layer is comprised of two straight lines crossing at an angle.

Claim 13

The device of claim 1 wherein said backing liner comprises a surface onto which the substrate or a set of substrates is removably adhered, said backing liner including a die cut such that a portion of the liner which is adhered to a portion of at least one substrate of the set may be removed without disturbing the set of substrates from a remaining portion of the backing liner and thereby exposing at least a portion of the substrate surface including adhesive of at least one of the substrates of the set.

Claim 14

The device of claim 1 wherein said backing liner includes more than one die cut such that more than one portion of the liner may be removed without disturbing the substrates removably attached to the remaining portion of the backing liner.

Claim 15

The device of claim 13 wherein said wedge cut from said corner boundary marker is a ninety degree wedge so that the corner boundary delineated by said pattern is a ninety degree corner boundary.

Claim 16

The device of claim 13 wherein said straight lines of said set-up point marker cross at an angle of ninety degrees so that the lines comprising said pattern are perpendicular to one another so as to define at least one ninety degree angle.

Claim 17

The device of claim 1 wherein said ink layer is at least partially deposited onto a patient's skin when said substrate is removed.

Claim 18

The device of claim 1 further comprising a set of substrates including at least one of a corner boundary marker, a line boundary marker, an isocenter marker, or a set-up point marker configured to be used to define and delineate a radiation therapy portal area; said corner boundary marker being of substantially circular shape with a wedge cut therefrom so that the substrate may be used to delineate a corner boundary of a radiation therapy portal area such that said pattern defined by said ink layer is comprised of lines on edges outlining the corner boundary; said line boundary marker being of substantially rectangular shape wherein the length of the rectangle is several times the width of the rectangle so that the substrate may be used to delineate a boundary of a radiation therapy boundary such that said pattern defined by said ink layer is comprised of a straight line; said isocenter marker being of substantially circular shape with a circular cut-out center such that the substrate is defined by a circular outer edge and a circular inner edge both of which circular edges share a common center point so that the substrate may be used to delineate an isocenter of a radiation therapy portal area such that said pattern defined by said ink layer is comprised of lines extending from the inner edge to the outer edge along imaginary lines extending radially from the common center point to the circular outer edge; said set-up point marker having said pattern defined by said ink layer comprised of two straight lines crossing at an angle.