Localization mechanism for an MRI compatible biopsy device
First Claim
Patent Images
1. A localization apparatus for use in a medical compression apparatus for positioning a biopsy probe attached to a proximal handle of a biopsy instrument for performing biopsy procedures, comprising:
- a. a plate containing a plurality of apertures;
b. a mounting device including alignment positioning guides to orient the biopsy probe with respect to the plate, wherein the mounting device comprises a vertical guide;
c. a biopsy instrument support oriented to support the proximal handle of the biopsy instrument; and
d. a biopsy probe housing operably configured to selectively connect the proximal handle of the biopsy instrument with the biopsy probe, wherein the biopsy probe housing comprises;
i. a passageway operably configured to permit a cutter of the proximal handle to extend distally within the biopsy probe, andii. at least one connecting member configured to selectively connect the biopsy probe housing to the vertical guide of the mounting device.
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Abstract
A localization mechanism, or fixture, is used in conjunction with a breast coil for breast compression and for guiding a core biopsy instrument during prone stereotactic biopsy procedures in both open and closed Magnetic Resonance Imaging (MRI) machines. The localization fixture includes a fiducial marker and three-dimensional Cartesian positionable guide for supporting and orienting an MRI-compatible biopsy instrument with detachable probe/thumb wheel probe to the biopsy site of suspicious tissues or lesions.
66 Citations
22 Claims
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1. A localization apparatus for use in a medical compression apparatus for positioning a biopsy probe attached to a proximal handle of a biopsy instrument for performing biopsy procedures, comprising:
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a. a plate containing a plurality of apertures; b. a mounting device including alignment positioning guides to orient the biopsy probe with respect to the plate, wherein the mounting device comprises a vertical guide; c. a biopsy instrument support oriented to support the proximal handle of the biopsy instrument; and d. a biopsy probe housing operably configured to selectively connect the proximal handle of the biopsy instrument with the biopsy probe, wherein the biopsy probe housing comprises; i. a passageway operably configured to permit a cutter of the proximal handle to extend distally within the biopsy probe, and ii. at least one connecting member configured to selectively connect the biopsy probe housing to the vertical guide of the mounting device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A localization apparatus for use in a medical compression apparatus for positioning a biopsy probe for a Magnetic Resonance Imaging (MRI)-guide core biopsy procedure, comprising:
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a. a compression plate formed of an MRI compatible material, wherein the compression plate comprises; i. a plurality of apertures, wherein the plurality of apertures comprise a plurality of slots, wherein each of the slots comprise an elongated opening in the compression plate through which a portion of the biopsy probe is positionable, and ii. a plurality of indents spaced along an interior span of each of the slots, wherein each of the indents comprise notched portions in the compression plate; b. a mounting device formed of an MRI compatible material and configured to receive the biopsy probe and including alignment positioning guides to orient the biopsy probe with respect to the plate; and c. a fiducial marker holder attachable along the compression plate, wherein the fiducial marker holder attaches to a selected one of the slots, wherein the attachment of the fiducial marker holder to the selected one of the slots is along a selected one of the indents spaced along the interior span of the selected one of the slots, and wherein the fiducial marker holder is operable to retain a fiducial marker to create an artifact in a MRI scan. - View Dependent Claims (14)
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15. A breast compression assembly for a prone diagnostic imaging guided biopsy procedure employing a core biopsy device including a probe containing a needle configured to penetrate a patient'"'"'s tissue and an attached handle containing a cutter translated within the needle of the probe to sever a core biopsy tissue sample, the breast compression assembly comprising:
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a. a chest support including an opening for allowing a patient'"'"'s breast to hang; b. a medial compression plate connected to the chest support; c. a lateral compression plate connected to the chest support and opposed to the medial compression plate at a selectable spacing for fixing a patient'"'"'s breast; d. a slide member perpendicularly coupled to the lateral compression plate; e. a probe positioning apparatus supported by the slide member and configured to spatially guide and position the probe; and f. a probe housing operably configured to support the handle and the probe, wherein the probe housing is further operably configured to removably connect the handle containing the cutter with the probe containing the needle, wherein the probe housing comprises at least one connecting member configured to selectively connect the probe housing with the probe positioning apparatus. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification