MRI biopsy device
First Claim
1. An apparatus for use with a biopsy device in a medical procedure, comprising:
- a. a first guide element extending longitudinally along an axis that is parallel to and offset relative to a selected axis of penetration into a patient;
b. a mount movingly engageable to the guide element and operably configured to support a probe portion of the biopsy device, wherein the probe portion of the biopsy device comprises a penetrating portion; and
c. a depth limiting member slidingly engageable with the guide element, wherein the depth limiting member is movable relative to the guide element along an axis that is parallel to the selected axis of penetration, the depth limiting member including a receptacle defining an opening aligned with the axis of penetration,i. wherein the receptacle is operably configured to contact a selected one of the mount or a proximal end of the penetrating portion of the biopsy device to arrest the penetrating portion of the biopsy device at a predetermined depth of insertion, andii. wherein the receptacle is operably configured to guide a distal end of the penetrating portion of the biopsy device along the selected axis of penetration as the penetrating portion is inserted through the opening of the receptacle.
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Accused Products
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 biopsy procedures in both open and closed Magnetic Resonance Imaging (MRI) machines. The localization fixture includes a three-dimensional Cartesian positionable guide for supporting and orienting an MRI-compatible biopsy instrument, and in particular a sleeve, to a biopsy site of suspicious tissues or lesions. A depth stop enhances accurate insertion, prevents over-insertion or inadvertent retraction of the sleeve. The sleeve receives a probe of the MRI-compatible biopsy instrument and may contain various features to enhance its imagability, to enhance vacuum and pressure assist therethrough, etc.
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Citations
29 Claims
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1. An apparatus for use with a biopsy device in a medical procedure, comprising:
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a. a first guide element extending longitudinally along an axis that is parallel to and offset relative to a selected axis of penetration into a patient; b. a mount movingly engageable to the guide element and operably configured to support a probe portion of the biopsy device, wherein the probe portion of the biopsy device comprises a penetrating portion; and c. a depth limiting member slidingly engageable with the guide element, wherein the depth limiting member is movable relative to the guide element along an axis that is parallel to the selected axis of penetration, the depth limiting member including a receptacle defining an opening aligned with the axis of penetration, i. wherein the receptacle is operably configured to contact a selected one of the mount or a proximal end of the penetrating portion of the biopsy device to arrest the penetrating portion of the biopsy device at a predetermined depth of insertion, and ii. wherein the receptacle is operably configured to guide a distal end of the penetrating portion of the biopsy device along the selected axis of penetration as the penetrating portion is inserted through the opening of the receptacle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification