Biopsy device and insertable biopsy needle module
First Claim
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1. A biopsy device, comprising:
- a disposable unit including;
a needle carrier configured to move in a first direction and a second direction opposite to the first direction; and
a biopsy needle and a cutting element disposed therein, wherein both the biopsy needle and the cutting element are coupled to the needle carrier, and a sample chamber in the biopsy needle, the cutting element having a cutting blade, the cutting element being configured to move the cutting blade relative to the sample chamber; and
a drive unit configured to receive the disposable unit, the drive unit having a needle-shooting mechanism with a cocked configuration and a released configuration, the needle-shooting mechanism having a spring and a clamping carriage, the clamping carriage being configured to drivably engage the needle carrier;
the drive unit configured to move the cutting element to drive the needle carrier in the second direction by a predetermined distance to move the needle-shooting mechanism to the cocked configuration; and
the drive unit having a user-actuatable control unit configured to release the needle-shooting mechanism to cause the needle-shooting mechanism to shoot the needle carrier including the biopsy needle simultaneously with the cutting element in the first direction by an amount of the predetermined distance.
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Abstract
A biopsy device includes a drive unit configured to receive a disposable unit having a needle carrier. The drive unit is configured to move a cutting element such that the needle carrier is driven a predetermined distance to move a needle-shooting mechanism to a cocked configuration. A user-actuatable control is configured to release the needle-shooting mechanism to cause the needle-shooting mechanism to shoot a biopsy needle simultaneously with the cutting element by an amount of the predetermined distance.
562 Citations
6 Claims
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1. A biopsy device, comprising:
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a disposable unit including; a needle carrier configured to move in a first direction and a second direction opposite to the first direction; and a biopsy needle and a cutting element disposed therein, wherein both the biopsy needle and the cutting element are coupled to the needle carrier, and a sample chamber in the biopsy needle, the cutting element having a cutting blade, the cutting element being configured to move the cutting blade relative to the sample chamber; and a drive unit configured to receive the disposable unit, the drive unit having a needle-shooting mechanism with a cocked configuration and a released configuration, the needle-shooting mechanism having a spring and a clamping carriage, the clamping carriage being configured to drivably engage the needle carrier; the drive unit configured to move the cutting element to drive the needle carrier in the second direction by a predetermined distance to move the needle-shooting mechanism to the cocked configuration; and the drive unit having a user-actuatable control unit configured to release the needle-shooting mechanism to cause the needle-shooting mechanism to shoot the needle carrier including the biopsy needle simultaneously with the cutting element in the first direction by an amount of the predetermined distance. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification