Biopsy device and insertable biopsy needle module
First Claim
1. 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, the biopsy needle configured to rotate around a longitudinal axis that passes through the biopsy needle, and the disposable unit including a hub portion connected to the biopsy needle proximal to the sample chamber;
the needle carrier having a holding portion, the holding portion and the hub portion collectively configured to permit the biopsy needle to rotate within the needle carrier to rotationally position the sample chamber while restraining rotation of the biopsy needle at a series of rotational detent positions within a range of rotation around the longitudinal axis, the holding portion and the hub portion configured such that the hub portion is rotatable within the holding portion at each of the series of rotational detent positions, and wherein each of the series of rotational detent positions is defined by a resistance to a rotation of the hub portion in the holding portion.
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Accused Products
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 is configured to rotate around a longitudinal axis. The disposable unit includes a hub portion connected to the biopsy needle proximal to the sample chamber. The needle carrier has a holding portion. The holding portion and the hub portion are collectively configured to permit the biopsy needle to rotate within the needle carrier to rotationally position the sample chamber while restraining rotation of the biopsy needle at a series of rotational detent positions within a range of rotation around the longitudinal axis. Each of the series of rotational detent positions is defined by a resistance to a rotation of the hub portion in the holding portion.
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Citations
20 Claims
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1. A biopsy device, comprising:
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a disposable unit including a needle carrier and a biopsy needle, the biopsy needle having a distal portion including a sample chamber, the biopsy needle configured to rotate around a longitudinal axis that passes through the biopsy needle, and the disposable unit including a hub portion connected to the biopsy needle proximal to the sample chamber; the needle carrier having a holding portion, the holding portion and the hub portion collectively configured to permit the biopsy needle to rotate within the needle carrier to rotationally position the sample chamber while restraining rotation of the biopsy needle at a series of rotational detent positions within a range of rotation around the longitudinal axis, the holding portion and the hub portion configured such that the hub portion is rotatable within the holding portion at each of the series of rotational detent positions, and wherein each of the series of rotational detent positions is defined by a resistance to a rotation of the hub portion in the holding portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A biopsy device, comprising:
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a disposable unit including a needle carrier and a biopsy needle, the biopsy needle having a distal portion including a sample chamber, and the disposable unit including a hub portion connected to the biopsy needle proximal to the sample chamber, the needle carrier having a holding portion, the holding portion and the hub portion collectively configured to permit the biopsy needle to rotate within the needle carrier while restraining rotation of the biopsy needle in a series of rotational detent positions within a range of rotation; and a drive unit having a chamber configured to receive the disposable unit, the drive unit configured to drivably engage the disposable unit to move the biopsy needle. - View Dependent Claims (11, 12, 13, 14)
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15. A method of operating a biopsy needle, comprising:
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inserting the biopsy needle into tissue at a biopsy site of a host; rotationally positioning a sample chamber of the biopsy needle at a desired rotational detent position of a series of rotational detent positions around a longitudinal axis of the biopsy needle, wherein each of the series of rotational detent positions is defined by a resistance to a rotation of the biopsy needle; receiving tissue in the sample chamber of the biopsy needle; cutting the tissue in the sample chamber to detach a tissue sample from the biopsy site; and rotating the sample chamber of the biopsy needle to a next rotational detent position of the series of rotational detent positions. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification