초록 ▼

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)

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.

대표청구항 ▼

[ What is claimed is:] [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 co

[ What is claimed is:] [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; anda 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.