Biopsy instrument with tissue penetrating spiral
First Claim
1. A surgical instrument for excising a targeted tissue mass to be biopsied from adjacent bodily tissue on a surgical patient, said instrument comprising:
- a) an elongated tube having proximal and distal ends, and when said instrument is positioned to excise the targeted tissue mass, the proximal end of said elongated tube is positioned externally of the surgical patient and the distal end of said elongated tube is positioned adjacent the targeted tissue mass;
b) a tissue penetrating spiral having a spiral lumen therethrough, said spiral mounted within said elongated tube for rotational movement therein; and
c) a spiral core received within said spiral lumen, said spiral core having a plurality of spaced-apart spiral grooves thereon;
wherein when the distal end of said elongated tube is positioned adjacent the targeted tissue mass and said spiral is rotated, said spiral penetrates distally into the targeted tissue mass and the targeted tissue mass or a portion thereof is received in said spiral lumen to facilitate excising the targeted tissue mass or the portion thereof to be biopsied from the adjacent bodily tissue.
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Accused Products
Abstract
A surgical instrument for excising a targeted tissue mass to be biopsied from adjacent bodily tissue on a surgical patient is disclosed. The instrument has an elongated tube and a tissue penetrating spiral having a spiral lumen therethrough mounted within the elongated tube for rotational movement. When the spiral is rotated, it penetrates distally into the targeted tissue mass. The mass is received in the spiral lumen for subsequent excision of the mass to be biopsied. A large biopsy sample can be obtained because of the ample space within the lumen of the tissue penetrating spiral. Since a large biopsy sample can be taken, the number of samples which need to be taken is minimized, and the consequent trauma to the patient is significantly reduced.
405 Citations
13 Claims
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1. A surgical instrument for excising a targeted tissue mass to be biopsied from adjacent bodily tissue on a surgical patient, said instrument comprising:
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a) an elongated tube having proximal and distal ends, and when said instrument is positioned to excise the targeted tissue mass, the proximal end of said elongated tube is positioned externally of the surgical patient and the distal end of said elongated tube is positioned adjacent the targeted tissue mass; b) a tissue penetrating spiral having a spiral lumen therethrough, said spiral mounted within said elongated tube for rotational movement therein; and c) a spiral core received within said spiral lumen, said spiral core having a plurality of spaced-apart spiral grooves thereon; wherein when the distal end of said elongated tube is positioned adjacent the targeted tissue mass and said spiral is rotated, said spiral penetrates distally into the targeted tissue mass and the targeted tissue mass or a portion thereof is received in said spiral lumen to facilitate excising the targeted tissue mass or the portion thereof to be biopsied from the adjacent bodily tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification