Apparatus for automated biopsy and collection of soft tissue
DCFirst Claim
1. A biopsy instrument for obtaining multiple samples of tissue at a biopsy site of a patient, said instrument comprising:
- a) a housing;
b) a needle having a longitudinal axis, said needle being rotatably attached to said housing near a proximal portion of said needle, said needle further having;
i) a distal end; and
ii) a tissue receiving port in said needle adjacent to the distal end of said needle for receiving a discrete sample of the tissue, said tissue receiving port being positionable to multiple angular positions about the longitudinal axis of said needle for sequentially obtaining the multiple samples of the tissue upon rotation of said needle relative to said housing; and
c) a cutter disposed coaxially on the longitudinal axis of said needle, said cutter being movable relative to said needle for severing the multiple samples of the tissue sequentially received in said tissue receiving port of said needle at the multiple angular positions about the longitudinal axis of said needle.
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Accused Products
Abstract
A method and device for the automated biopsy and collection of soft tissue having a piercing needle with a receiving port to trap tissue prior to cutting. A motor drive directs and positions the tissue receiving port at a lesion site in arbitrary positions about and along the longitudinal axis of the device. A cutter advances into the receiving chamber and severs tissue which has prolapsed into the receiving port. The severed tissue is then removed from the receiving port without removing the piercing needle receiving port from the lesion site, thus allowing for the accurate, rapid removal of an arbitrary number of core samples with only one insertion. A tissue sample cassette provides storage for the samples as well as a means for coding and decoding the location from which the samples were obtained. Together, these features allow for more accurate and complete sampling of large lesions, for the complete removal of small lesions or removal of other tissue for a variety of reasons.
679 Citations
14 Claims
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1. A biopsy instrument for obtaining multiple samples of tissue at a biopsy site of a patient, said instrument comprising:
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a) a housing; b) a needle having a longitudinal axis, said needle being rotatably attached to said housing near a proximal portion of said needle, said needle further having; i) a distal end; and ii) a tissue receiving port in said needle adjacent to the distal end of said needle for receiving a discrete sample of the tissue, said tissue receiving port being positionable to multiple angular positions about the longitudinal axis of said needle for sequentially obtaining the multiple samples of the tissue upon rotation of said needle relative to said housing; and c) a cutter disposed coaxially on the longitudinal axis of said needle, said cutter being movable relative to said needle for severing the multiple samples of the tissue sequentially received in said tissue receiving port of said needle at the multiple angular positions about the longitudinal axis of said needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification