Excisional biopsy devices and methods

• US 20050182339A1
• Filed: 01/26/2005
• Published: 08/18/2005
• Est. Priority Date: 09/03/1998
• Status: Abandoned Application

• Current Assignee: Encapsule Medical, LLC
• Original Assignee: Encapsule Medical, LLC
• Inventors: Vetter, James W., Lee, Roberta, Chernomorsky, Ary S.
• Application Number:
  US11/045,006
• Publication Number:
  US 20050182339A1
• Time in Patent Office: Days
• US Class Current: 600/564
• CPC Class Codes: A61B 10/0041 Detection of breast cancer mammography by transillumination A61B5/0091, by X-rays A61B6/502, by ultrasonic means A61B8/0825
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 10/0266 means for severing sample
• CPC Class Codes: A61B 10/04 Endoscopic instruments
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 18/1482 having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
• CPC Class Codes: A61B 2018/00011 with fluids
• CPC Class Codes: A61B 2018/00333 Breast
• CPC Class Codes: A61B 2018/1407 Loop
• CPC Class Codes: A61B 2018/1475 Electrodes retractable in or deployable from a housing
• CPC Class Codes: A61B 2090/3782 transmitter or receiver in catheter or minimal invasive instrument
• CPC Class Codes: A61B 2090/3784 both receiver and transmitter being in the instrument or receiver being also transmitter
• CPC Class Codes: A61B 2218/002 Irrigation

Abstract

An excisional biopsy system includes a tubular member that has a proximal end and a distal end in which one or more windows are defined. A first removable probe has a proximal portion that includes a cutting tool extender and a distal portion that includes a cutting tool. The first removable probe may be configured to fit at least partially within the tubular member to enable the cutting tool to selectively bow out of and to retract within one of the windows when the cutting tool extender is activated. A second removable probe has a proximal section that includes a tissue collection device extender and a distal section that includes a tissue collection device. The second removable probe may also be configured to fit at least partially within the tubular member to enable the tissue collection device to extend out of and to retract within one of the windows when the tissue collection device extender is activated. A third removable probe may also be provided. The third removable probe may also be configured to fit at least partially within the tubular member and may include an imaging device, such as an ultrasound transducer, mounted therein. By selectively activating the cutting tool and the tissue collection device while rotating the excisional device, a tissue specimen may be cut from the surrounding tissue and collected for later analysis.

Claims

1-77. -77. (canceled)

78. A device configured to remove a specimen of breast tissue that is cut from surrounding breast tissue, comprising:

a shaft, and

a tissue collection element coupled to the shaft, the tissue collection element including a thin flexible membrane, the tissue collection device being movable from a retracted position to an expanded position, the thin flexible membrane being configured to encapsulate the cut specimen while maintaining the cut specimen intact and isolating the captured specimen from contact with the surrounding breast tissue.

79. The device of claim 78, wherein the tissue collection element includes a flexible element to which the thin flexible membrane is attached and wherein the flexible element is configured to selectively bow away from and retract toward the shaft.

80. The device of claim 78, wherein the thin flexible membrane forms a bag.

81. The device of claim 80, wherein the bag is configured to selectively open to capture the cut specimen and close to encapsulate the cut specimen as the tissue collection element bows away from and retracts toward the shaft, respectively.

82. The device of claim 78, wherein the tissue collection element is configured to expand to a size at least equal to the size of the cut specimen.