Device for cushioning of compression surfaces

• US 6,765,984 B2
• Filed: 08/03/2001
• Issued: 07/20/2004
• Est. Priority Date: 03/06/2000
• Status: Expired due to Term

• Current Assignee: Biolucent Inc
• Original Assignee: Biolucent Inc
• Inventors: Hermann, George D., Lebovic, Gail, Higgins, Sheryl W., Howell, Thomas A., Willis, David
• Primary Examiner(s): ARANA, LOUIS M
• Application Number:
  US09/922,602
• Publication Number:
  US 20030007597A1
• Time in Patent Office: 1,082 Days
• Field of Search: 378/37, 378/62, 378/68, 378/208
• US Class Current: 378/37
• CPC Class Codes: A61B 6/0414 with compression means
• CPC Class Codes: A61B 6/502 for diagnosis of breast, i.e. mammography

Abstract

A pad for cushioning a compression device, e.g., an x-ray plate, of a mammography unit. The pad includes a radiolucent central region, e.g., including radiolucent orientation markings, that is secured adjacent a contact surface of the x-ray plate. The pad includes a pair of side regions secured along respective side surfaces of the x-ray plate including a slot for inserting an x-ray cassette into the x-ray plate. The pad also includes a front region securable along a front surface of the x-ray plate. A double coated tape may be attached to the pad that includes a pressure sensitive adhesive for removably attaching the pad to the x-ray plate. Alternatively, the side regions may extend around the compression device and connect to one another to secure the pad or the pad may be a sleeve that is slidably received around at least a portion of the compression device.

Claims

1. An apparatus for compressing a tissue structure, comprising:

a compression device including a primary contact surface comprising radiolucent material lying within a field of an x-ray source for obtaining an x-ray of a tissue structure disposed in the field, and one or more side surfaces extending laterally from the primary contact surface; and

a pad comprising compressible material secured to the compression device, the pad including a tissue contact surface comprising radiolucent material removably secured against the primary contact surface of the compression device, and one or more side regions removably secured along respective side surfaces of the compression device.

3. The apparatus of claim 1, wherein the entire pad is formed from radiolucent material.

5. The apparatus of claim 1, wherein the one or more side regions comprise a pair of side regions extending from opposing edges of the tissue contact surface, the side regions extending around the compression device.

6. The apparatus of claim 5, wherein the side regions connect to one another such that the tissue contact surface is secured adjacent the primary contact surface of the compression device.

7. The apparatus of claim 5, wherein the pad comprises a front region attached to a front surface of the compression device.

8. The apparatus of claim 7, wherein the front region is sufficiently long such that the front region and at least one of the side regions overlap to substantially secure the pad to the compression device.

9. The apparatus of claim 1, wherein the pad comprises a sleeve that is slidably received around at least a portion of the compression device, the pad sized to slidably engage the compression device sufficiently to secure the tissue contact surface adjacent the primary contact surface.

10. The apparatus of claim 9, wherein the sleeve comprises a top panel and a bottom panel secured opposite one another by side panels extending therebetween.

12. The apparatus of claim 1, wherein the pad is removably secured to the compression device.

13. The apparatus of claim 1, wherein the pad is secured to the compression device by an adhesive.

14. The apparatus of claim 1, wherein the pad comprises resiliently compressible material.

15. The apparatus or claim 1, wherein the pad comprises thermally insulating material.

2. An apparatus for compressing a tissue structure, comprising:

a compression device including a primary contact surface comprising radiolucent material, and one or more side surfaces extending laterally from the primary contact surface; and

a pad comprising compressible material secured to the compression device, the pad including a tissue contact surface comprising radiolucent material removably secured against the primary contact surface, and one or more side regions removably secured along respective side surfaces of the compression device,

wherein the tissue contact surface comprises markings for orienting a tissue structure applied against the tissue contact surface.

4. An apparatus for compressing a tissue structure, comprising:

a compression device including a primary contact surface comprising radiolucent material, and one or more side surfaces extending laterally from the primary contact surface; and

a pad comprising compressible material secured to the compression device, the pad including a tissue contact surface comprising radiolucent material removably secured against the primary contact surface, and one or more side regions removably secured along respective side surfaces of the compression device,

wherein the tissue contact surface comprises a radiolucent region and a radiopaque region.

11. An apparatus for compressing a tissue structure, comprising:

a compression device including a primary contact surface comprising radiolucent material, and one or more side surfaces extending laterally from the primary contact surface; and

a pad comprising compressible material secured to the compression device, the pad including a tissue contact surface comprising radiolucent material removably secured against the primary contact surface, and one or more side regions removably secured along respective side surfaces of the compression device,

wherein the one or more side regions comprise a side region including a slot therein corresponding to an opening in a side surface of the compression device, thereby providing access to the opening when the side region is secured adjacent the side surface.

16. A pad for cushioning a compression surface of a mammography unit, comprising:

a pad comprising radiolucent material, the pad comprising first and second surfaces;

a radiolucent tape comprising a first surface attached to the first surface of the pad, and a second exposed surface comprising a radiolucent pressure sensitive adhesive for removably attaching the exposed surface to an object.

17. The pad of claim 16, further comprising a radiolucent adhesive between the first surfaces of the pad and the tape for attaching the tape to the pad.

18. The pad of claim 17, wherein the radiolucent adhesive comprises an acrylic adhesive having a thickness of not more than about three mils.

19. The pad of claim 16, wherein the pressure sensitive adhesive comprises an acrylic adhesive having a thickness of not more than about 1.25 mils.

20. The pad of claim 16, wherein the tape comprises at least one of a polyester film and a polyethylene film having a thickness of not more than about 0.5 mils.

21. The pad of claim 16, wherein the pad comprises open cell polyurethane foam having a thickness of not more than about 6.4 mm (0.25 inch).

22. The pad of claim 16, further comprises a cover sheet covering the exposed surface, the cover sheet being removable before attaching the exposed surface to an object.

23. The pad of claim 16, wherein the tape comprises substantially elastic material, whereby the resilient pad may be secured around corners while minimizing pockets and creases between the pad and a contact surface.

24. The pad of claim 16, wherein the pad comprises a radiolucent region and a radiopaque region.

25. The pad of claim 16, wherein the pad comprises a radiolucent central region, and a side region adjacent the central region, the side region including a slot therethrough.

26. The pad of claim 16, wherein the pad comprises a “

U”

shaped panel defining a window between opposing portions.

27. A device for attachment to a compression surface of a mammography unit, comprising:

a pad comprising radiolucent material, the pad comprising first and second surfaces, the pad comprising markings for orienting a tissue structure applied against the second surface; and

means for attaching the first surface of the pad to the compression surface.

28. Tue device of claim 27, wherein the markings comprise notches or indents in at least one of the first and second surfaces.

29. The device of claim 27, wherein the markings comprise radiolucent markings printed on at least one of the first and second surfaces.

30. The device of claim 27, wherein the markings comprise one or more axes defined along the second surface.

31. The device of claim 27, wherein the means for attaching comprises a radiolucent adhesive applied to the first surface.

32. The device of claim 27, wherein the means for attaching comprises a texture on the first surface.

33. The device of claim 27, wherein the means for attaching comprises a tape attached to the first surface, the tape including an exposed surface comprising a pressure sensitive adhesive.

34. The device of claim 33, wherein the pressure sensitive adhesive comprises an acrylic adhesive.

35. The device of claim 33, wherein the tape comprises at least one of polyester and polyethylene.

36. The device of claim 33, wherein the tape comprises a double coated tape.

37. The device of claim 27, wherein the pad comprises resilient material.

38. The device of claim 27, wherein the pad comprises thermally insulating material.

39. An apparatus for compressing a tissue structure, comprising:

a compression device including a primary contact surface comprising radiolucent material; and

a pad comprising radiolucent material removably secured against the primary contact surface, the pad comprising radiopaque markings for orienting a tissue structure applied against the pad.

40. The apparatus of claim 39, wherein the pad comprises first and second surfaces, and wherein the first surface comprises means for removably attaching the first surface of the pad to the primary contact surface.

41. The apparatus of claim 39, wherein the compression device comprises one or more side surfaces extending laterally from the primary contact surface, and wherein the pad is also removably secured to the one or more side surfaces.

42. The apparatus of claim 39, wherein the compression device comprises an opening for receiving an x-ray element therein, and wherein the pad comprises a slot therethrough corresponding to the opening.

43. The apparatus of claim 39, wherein the compression device comprises a compression panel of a stereotactic biopsy apparatus, and wherein the pad comprises a window therein.

44. The apparatus of claim 43, wherein the pad comprises a “

U”

shaped panel defining a window between opposing portions of the panel.

45. A compression device for a mammography unit, comprising:

a first compression plate including a primary contact surface comprising radiolucent material lying within an x-ray field of the mammography unit, and one or more side surfaces extending laterally from the primary contact surface; and

a pad comprising compressible material secured to the compression plate, the pad including a tissue contact surface comprising radiolucent material adjacent the primary contact surface of the compression plate, and one or more side regions adjacent respective side surfaces of the first compression device.

46. The compression device of claim 45, wherein the pad is removably secured to the compression plate.

47. The compression device of claim 45, wherein the one or more side regions wrap at least partially around the compression plate.

48. The compression device of claim 47, wherein the one or more side regions are secured to the compression device by hook and loop connectors.

49. The compression device of claim 48, wherein the pad comprises two side regions that wrap around the compression plate and are secured to one another by the hook and eye connectors.

50. The compression device of claim 45, further comprising a second compression plate opposite the first compression plate for compressing tissue between the second compression plate and the primary contact surface of the first compression plate.