Biopsy instrument with tissue penetrating spiral
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United States of America Patent
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-
Jul 4, 2000
Grant Date -
N/A
app pub date -
Oct 23, 1998
filing date -
Oct 23, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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