Biopsy device and insertable biopsy needle module
AssigneeC.R. Bard, Inc.
InventorsNorbert Heske, Thomas Heske
Life of this patent
Estimating the term…
Abstract
A biopsy device includes a disposable unit including a needle carrier and a biopsy needle. The biopsy needle has a distal portion including a sample chamber and a hub portion located proximal to the sample chamber. The needle carrier has a holding portion. The holding portion and the hub portion are collectively configured to form a detent mechanism configured to permit the biopsy needle to rotate within needle carrier to rotationally position the sample chamber while restraining rotation of the biopsy needle at a series of rotational detent positions.
Claims21
1-44. (canceled)
A biopsy device, comprising:
- a disposable unit including a needle carrier and a biopsy needle, the biopsy needle having a distal portion including a sample chamber and a hub portion located proximal to the sample chamber;
- the needle carrier having a holding portion, the holding portion and the hub portion collectively configured to form a detent mechanism configured to permit the biopsy needle to rotate within needle carrier to rotationally position the sample chamber while restraining rotation of the biopsy needle at a series of rotational detent positions.
A biopsy device, comprising:
- a disposable unit including a needle carrier and a biopsy needle, the biopsy needle having a distal portion including a sample chamber and a hub portion located proximal to the sample chamber;
- a drive unit configured to receive the disposable unit, the drive unit having a holding portion,
- the holding portion and the hub portion collectively configured to form a detent mechanism configured to permit the biopsy needle to rotate within needle carrier while restraining rotation of the biopsy needle in a series of rotational detent positions.
A method of performing a biopsy, comprising:
- inserting a biopsy needle into a host at a biopsy site;
- rotationally positioning a sample chamber of the biopsy needle at a desired position relative to the biopsy site;
- restraining rotation of the biopsy needle;
- generating a negative pressure in the sample chamber of the biopsy needle;
- exposing an opening of the sample chamber after the negative pressure reaches a predefined level;
- and
- slicing the host in a direction parallel to a longitudinal axis of the biopsy needle on either side of the sample chamber to detach a tissue sample from the biopsy site.
Dependencies are inferred from the claim text.