SUBCUTANEOUS CAVITY MARKING DEVICE AND METHOD

• US 20140051996A1
• Filed: 10/30/2013
• Published: 02/20/2014
• Est. Priority Date: 12/24/1998
• Status: Abandoned Application

• Current Assignee: Devicor Medical Products Incorporated (Danaher Corporation)
• Original Assignee: Devicor Medical Products Incorporated (Danaher Corporation)
• Inventors: Sirimanne, D. Laksen, Sutton, Douglas S., Fawzi, Natalie V., Lebovic, Gail
• Application Number:
  US14/067,270
• Publication Number:
  US 20140051996A1
• Time in Patent Office: Days
• US Class Current: 600/431
• CPC Class Codes: A61B 2090/3908 Soft tissue, e.g. breast tissue
• CPC Class Codes: A61B 2090/3987 Applicators for implanting markers
• CPC Class Codes: A61B 8/481 involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream analysis of echo signal exploiting properties of a contrast enhancer in devices for short-range imaging with acoustic waves G01S7/52039
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61K 49/006 Biological staining of tissues in vivo, e.g. methylene blue or toluidine blue O administered in the buccal area to detect epithelial cancer cells, dyes used for delineating tissues during surgery
• CPC Class Codes: A61K 49/222 characterised by a special physical form, e.g. emulsions, liposomes

Abstract

These are subcutaneous cavity marking devices and methods. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammographic, echogenic, or other non-invasive imaging techniques. Also, the device contains a bioabsorbable or non-bioabsorbable marker. The device may be combined with various substances enhancing the radiopaque, mammographic, or echogenic characteristics of the marker or the body allowing it to be observed by any non-invasive imaging techniques. This is further a method of marking a subcutaneous cavity using a bioabsorbable material and a bioabsorbable or non-bioabsorbable marker in conjunction with the material. The method also may combine any of the features as described with the device.

Claims

1-66. -66. (canceled)

67. A tissue cavity marking device comprising:

a bioabsorbable body; and

at least two radiopaque markers carried by the bioabsorbable body to mark at least a portion of the perimeter of the bioabsorbable body.

68. The tissue cavity marking device of claim 67 wherein the bioabsorbable body is configured to expand within a tissue cavity.

69. The tissue cavity marking device of claim 68 wherein the bioabsorbable body is configured to expand to provide resistance against the walls of the tissue cavity.

70. The cavity marking device of claim 67 wherein the bioabsorbable body is resilient.

71. The cavity marking device of claim 67 wherein the bioabsorbable body degrades at a predetermined rate.

72. The cavity marking device of claim 67 comprising at least three radiopaque markers carried by the bioabsorbable body.

73. The cavity marking device of claim 67 comprising at least three radiopaque markers evenly aligned along an axis of the bioabsorbable body.

74. The cavity marking device of claim 67 comprising at least three radiopaque markers carried by the bioabsorbable body and disposed along the body such that the markers facilitate determination of the orientation of the tissue cavity marking device within the cavity.

75. The cavity marking device of claim 67 wherein the bioabsorbable body comprises a polymer.

76. The cavity marking device of claim 67 wherein the bioabsorbable body comprises at least one of PGA, PLA, and copolymers of PGA and PLA.

77. The cavity marking device of claim 67 wherein at least a portion of the device comprises a helical configuration.

78. The cavity marking device of claim 67 wherein at least one of the radiopaque marker comprises the helical configuration.

80. The cavity marking device of claim 67 wherein the at least two radiopaque markers are disposed in a perimeter marking pattern.

81. A biopsy cavity marking device comprising:

a body having a length; and

at least three spaced radiopaque markers placed along the length of the body.

82. The biopsy cavity marking device of claim 81 wherein the radiopaque markers are placed along the length of the body to mark the biopsy cavity perimeter.

83. The biopsy cavity marking device of claim. 81 wherein the radiopaque markers are placed to provide directionality of the cavity.

84. The biopsy cavity marking device of claim 81 wherein the marking device is configured to expand within the cavity.

85. The biopsy cavity marking device of claim 81 wherein radiopaque markers the aligned along an axis of the body.

86. The biopsy cavity marking device of claim 81 wherein the radiopaque markers are evenly aligned along an axis of the body.)

87. The biopsy cavity marking device of claim 81 wherein the body is bioabsorbable.

88. The biopsy cavity marking device of claim 81 wherein the markers are in a form selected from the group consisting of a ring, a band, a wire, and a suture.

89. The biopsy cavity marking device of claim 81 wherein the markers comprise a metal selected from the group consisting of stainless steel, titanium, gold, platinum, nickel, iridium, rhodium, tungsten, tantalum, and combinations thereof.

90. The biopsy cavity marking device of claim 81 wherein the body comprises a biodegradable polymer, and wherein each radiopaque marker comprises a metallic portion joined to the body.