Control system and method for automated biopsy device
First Claim
1. An automatic biopsy device, comprising:
- a first elongate cannula having a distal end for entering tissue and a notch located proximally of said distal end for receiving a portion of the tissue which is positioned adjacent to said notch;
a second elongate cannula disposed coaxially with said first cannula, said second cannula being slidable along the first cannula for cutting the portion of tissue protruding into said notch when said second cannula slides past said notch, thereby depositing the portion of cut tissue within said first elongate cannula proximal to said first cannula distal end;
a first driving mechanism for rotationally driving said first cannula about its longitudinal axis, so that said notch may be rotated to any desired orientation for sampling tissue from different locations about said first cannula;
a second driving mechanism for moving said second cannula relative to said first cannula;
a monitor having a screen for displaying a target lesion site to a user;
a processor for receiving instructions from said user regarding regions of said target lesion from which tissue samples are to be taken and for generating instructions responsive to the instructions from said user in order to execute obtainment of tissue samples from said regions; and
a controller for receiving the instructions generated by said processor and for automatically controlling said first driving mechanism to rotate said notch to a desired orientation for obtaining a tissue sample and said second driving mechanism to move said second cannula to cut said tissue sample so that it is deposited within said first cannula.
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Accused Products
Abstract
An automatic control system for a vacuum-assisted automatic core biopsy device (10) is provided, wherein the automatic core biopsy device (10) comprises a housing (12), out of which extends a needle assembly (14) including a hollow outer piercing needle (16), an inner cutter (18) having a lumen (20), a probe housing (22), and a tissue receiving notch (24). The automatic control system (92) is computerized to move the hollow outer piercing needle (16) automatically to the target tissue lesion, as was true in the prior art, but also is programmed to automatically control the rotational orientation of the piercing needle (16), and its associated tissue receiving notch (24), as well as the axial positioning and rotation of the cutting cannula (18). Consequently, a clinician user need only mark the desired locations within the target location from which tissue samples are desired and the automatic control system will operate the device to retrieve samples from the marked locations.
997 Citations
27 Claims
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1. An automatic biopsy device, comprising:
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a first elongate cannula having a distal end for entering tissue and a notch located proximally of said distal end for receiving a portion of the tissue which is positioned adjacent to said notch; a second elongate cannula disposed coaxially with said first cannula, said second cannula being slidable along the first cannula for cutting the portion of tissue protruding into said notch when said second cannula slides past said notch, thereby depositing the portion of cut tissue within said first elongate cannula proximal to said first cannula distal end; a first driving mechanism for rotationally driving said first cannula about its longitudinal axis, so that said notch may be rotated to any desired orientation for sampling tissue from different locations about said first cannula; a second driving mechanism for moving said second cannula relative to said first cannula; a monitor having a screen for displaying a target lesion site to a user; a processor for receiving instructions from said user regarding regions of said target lesion from which tissue samples are to be taken and for generating instructions responsive to the instructions from said user in order to execute obtainment of tissue samples from said regions; and a controller for receiving the instructions generated by said processor and for automatically controlling said first driving mechanism to rotate said notch to a desired orientation for obtaining a tissue sample and said second driving mechanism to move said second cannula to cut said tissue sample so that it is deposited within said first cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An automatic biopsy device, comprising:
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a hollow needle having a distal end and a tissue receiving notch; a cutter having a sharpened distal end and disposed coaxially within said hollow needle; a first driver for rotating said hollow needle to orient said tissue receiving notch in a desired radial orientation; a second driver for axially moving said cutter so that it is slidable along the hollow needle for cutting tissue protruding into said notch; and a processor for receiving instructions from a user related to desired portions of a target lesion to be sampled and instructing a controller to automatically control each of said first and second drivers to move the hollow needle and the cutter in order to obtain the desired tissue lesion portions. - View Dependent Claims (20)
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21. A method of controlling an automatic biopsy device said device comprising a first elongate cannula having a distal end for entering tissue and a tissue-receiving notch, and a second elongate cannula having a sharpened distal end and disposed coaxially with the first cannula, the method comprising:
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a) providing instructions as to the portions of said lesion from which tissue samples are desired by denoting on a computer monitor screen displaying a target lesion said portions; b) transmitting said instructions to a processor; c) processing the instructions and transmitting instructions from said processor to a controller; and d) using the controller to automatically drive said first cannula to rotate to a desired notch position and to automatically drive said second cannula to cut tissue protruding into said notch, thereby obtaining a tissue sample. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification