Radiographic image marking system

• US 6,269,148 B1
• Filed: 11/09/1998
• Issued: 07/31/2001
• Est. Priority Date: 11/09/1998
• Status: Expired due to Term

• Current Assignee: The Suremark Company
• Original Assignee: The Suremark Company
• Inventors: Jessop, Wayne G., Jessop, David W., Earl, Danielle E., Newbury, C. Allen
• Primary Examiner(s): Porta, David P.
• Application Number:
  US09/188,475
• Time in Patent Office: 995 Days
• Field of Search: 378/162, 378/163, 378/164, 378/165, 378/204, 378/207, 378/208
• US Class Current: 378/162
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: G01N 23/04 and forming images of the material
• CPC Class Codes: G21K 1/10 Scattering devices; Absorbing devices; Ionising radiation filters

Abstract

An radiographic marker system includes a structure creating a layer substantially transparent to imaging radiation at energies used in radiographic imaging applications where the marker is used, the layer being formed in an enveloping shape and having a thickness extent, and a radiopaque marker opaque to imaging radiation at energies used in radiographic imaging applications where the marker is used, the radiopaque marker being carried by the structure creating a layer transparent to imaging radiation, the system can further comprise an adhesive layer on a bottom surface of the structure creating a layer substantially transparent to imaging radiation, the adhesive facilitating placement and removal of the marker.

Claims

1. A radiographic marker system, comprising:

a. a radiolucent base layer comprising an adhesive, said base layer formed in an enveloping shape, adapted to retain a marker adjacent structure to be imaged;

b. a structure creating a layer of material substantially transparent to imaging radiation at energies used in radiographic imaging applications where the marker is used, the layer being formed in an enveloping shape and having a thickness extent;

c. an imaging radiation absorbent marker opaque to imaging radiation at energies used in radiographic imaging applications where the marker is used, the imaging radiation absorbent marker being carried by the structure creating a layer of material transparent to imaging radiation said marker being configured to be substantially smaller in cross-sectional area presented to imagining radiation than that of said layer.

2. The radiographic marker system of claim 1, wherein the structure creating a layer of material substantially transparent to imaging radiation comprises a foam of polymeric resin.

3. The radiographic marker system of claim 2, wherein the foam is a closed-cell foam.

4. The radiographic marker system of claim 1, wherein the layer substantially transparent to imaging radiation is formed in a ring adapted to surround the structure to be imaged.

5. The radiographic marker system of claim 1, wherein the imaging radiation absorbent marker is embedded in the structure creating a layer of material substantially transparent to radiographic imaging radiation.

6. The radiographic marker system of claim 5, where the imaging radiation absorbing marker comprises a ball formed of radiopaque material.

7. The radiographic marker system of claim 2, where the layer of material substantially transparent to imaging radiation further comprises a perforation, and the imaging radiation absorbing marker is inserted into the perforation and is retained therein by the material comprising the layer of material substantially transparent to imaging radiation.

8. The radiographic marker system, of claim 1, wherein the marker system comprises a plurality of radiopaque markers.

9. The radiographic marker system of claim 8, wherein the markers are arranged in a pattern.

10. The radiographic marker system of claim 9, wherein the pattern comprises an indica of a property of an anatomical feature marked.

11. The radiographic marker system of claim 1, further comprising an adhesive releasable base layer from which the structure is dispensed.

12. A radiographic marker system comprising:

a. a structure creating a layer substantially transparent to imaging radiation at energies used in radiographic imaging applications where the marker is used, the layer being formed in an enveloping shape as seen by the imaging radiation and having a thickness extent;

b. A radiopaque marker opaque to imaging radiation at energies used in radiographic imaging applications where the marker is used, the radiopaque marker being carried by the structure creating a layer transparent to imaging radiation, said marker being configured to be substantially smaller in cross-sectional area presented to imaging radiation than that of said layer.

13. The radiographic marker system of claim 12, wherein the structure comprises a polymeric resin.

14. The radiographic marker system of claim 13, wherein the polymeric resin is elastomeric.

15. The radiographic marker system of claim 13, wherein the polymeric resin is foamed.

16. The radiographic marker system of claim 13, comprising a plurality of radiopaque markers.

17. The radiographic marker system of claim 16, wherein the radiopaque markers are arranged in a pattern.

18. The radiographic marker system of claim 16, further comprising a lifting tab facilitating handling of the marking system.

19. The radiographic marker system of claim 12, further comprising a polymeric film layer disposed beneath and attached to the structure, the polymeric film layer carrying an adhesive facilitating attachment of the structure adjacent anatomical structure to be marked.

20. A radiographic marker system comprising:

a. a structure creating a layer substantially transparent to imaging radiation at energies used in radiographic imaging applications where the marker is used, the layer being formed in an enveloping shape and having a thickness extent;

b. A radiopaque marker opaque to imaging radiation at energies used in radiographic imaging applications where the marker is used, the radiopaque marker being carried by the structure creating a layer transparent to imaging radiation, said marker being configured to be substantially smaller in cross-sectional area presented to imaging radiation than that of said layer;

c. an adhesive disposed beneath and attached to the structure, the adhesive facilitating attachment of the structure adjacent anatomical structure to be marked.