Apparatus for transcutaneous biopsy of rigid tissues in particular osteomedullary tissue
First Claim
1. Apparatus for transcutaneous biopsy of rigid tissues, comprisinghollow needle means provided with tapered distal end, blocking means suitable for being inserted into said hollow needle means in order to block a sample of tissue at the interior of said hollow needle,said blocking means comprising blade means, handle means associated with a proximal end of said hollow needle, said blocking means being coupled with advancing means suitable for advancing said blocking means into said hollow needle means between a first rear position and a second forward position,said advancing means comprising threaded nut means suitable for coupling with threaded means provided at a proximal end of said blocking means, wherein said threaded means are provided with an anti-rotation flattening.
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Accused Products
Abstract
The apparatus (1) for transcutaneous biopsy of rigid tissues includes hollow needle (2) provided with tapered distal end (3), blocking part (10) suitable for being inserted into the hollow needle (2) in order to block a sample of the tissue at the interior of the hollow needle (2), the blocking part (10) includes blade (11;13), handle (6) associated with a proximal end of hollow needle (2), the blocking part (10) is coupled with advancing part (9) suitable for advancing the blocking part (10) inside the hollow needle (2) between a first rear position and a second forward position.
66 Citations
25 Claims
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1. Apparatus for transcutaneous biopsy of rigid tissues, comprising
hollow needle means provided with tapered distal end, blocking means suitable for being inserted into said hollow needle means in order to block a sample of tissue at the interior of said hollow needle, said blocking means comprising blade means, handle means associated with a proximal end of said hollow needle, said blocking means being coupled with advancing means suitable for advancing said blocking means into said hollow needle means between a first rear position and a second forward position, said advancing means comprising threaded nut means suitable for coupling with threaded means provided at a proximal end of said blocking means, wherein said threaded means are provided with an anti-rotation flattening.
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12. Apparatus for transcutaneous biopsy of rigid tissues, comprising
hollow needle means provided with tapered distal end, blocking means suitable for being inserted into said hollow needle means in order to block a sample of tissue at the interior of said hollow needle, said blocking means comprising blade means, handle means associated with a proximal end of said hollow needle, said blocking means being coupled with advancing means suitable for advancing said blocking means into said hollow needle means between a first rear position and a second forward position, said advancing means comprises pushing means provided at a proximal end of said blocking means, wherein said pushing means comprises an annular expansion of the proximal end of said blocking means.
Specification