Tissue sample flushing system for biopsy device
First Claim
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1. A biopsy device, comprising:
- a sample-receiving device with a cavity configured to receive at least one tissue sample, the sample-receiving device being movable between a first position and a second position; and
a liquid supply unit having a sample flushing chamber and a pump in fluid communication with the sample flushing chamber, the pump configured to supply a flushing liquid to the sample flushing chamber, the sample flushing chamber having upper and lower openings, wherein when the sample-receiving device is in the second position, the cavity is aligned with the upper and lower openings of the sample flushing chamber to eject the tissue sample from the cavity when the flushing liquid is supplied, and the liquid supply unit being disconnected from the cavity of the sample-receiving device when the sample-receiving device is not in the second position.
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Abstract
A biopsy device includes a sample-receiving device with a cavity configured to receive at least one tissue sample. The sample-receiving device is movable between a first position and a second position. A liquid supply unit is configured to supply a flushing liquid. The liquid supply unit is operatively connected to the cavity of the sample-receiving device when the sample-receiving device is in the second position, and the liquid supply unit is disconnected from the cavity of the sample-receiving device when the sample-receiving device is not in the second position.
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Citations
18 Claims
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1. A biopsy device, comprising:
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a sample-receiving device with a cavity configured to receive at least one tissue sample, the sample-receiving device being movable between a first position and a second position; and a liquid supply unit having a sample flushing chamber and a pump in fluid communication with the sample flushing chamber, the pump configured to supply a flushing liquid to the sample flushing chamber, the sample flushing chamber having upper and lower openings, wherein when the sample-receiving device is in the second position, the cavity is aligned with the upper and lower openings of the sample flushing chamber to eject the tissue sample from the cavity when the flushing liquid is supplied, and the liquid supply unit being disconnected from the cavity of the sample-receiving device when the sample-receiving device is not in the second position. - View Dependent Claims (2, 3)
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4. A biopsy device, comprising:
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a hollow needle having a distal circumferential cutting edge; a sample-receiving device located in the hollow needle and movable relative to the hollow needle between a first position and a second position, the sample-receiving device having a cavity for receiving tissue; a liquid supply unit having a sample flushing chamber and a pump, the pump configured to supply a flushing liquid to the sample flushing chamber, the sample flushing chamber having an upper opening and a lower opening, wherein the liquid supply unit is disconnected from the cavity of the sample-receiving device when the sample-receiving device is in the first position, and wherein when the sample-receiving device is in the second position, the cavity is aligned with the upper opening and the lower opening of the sample flushing chamber to facilitate a tissue sample ejection from the cavity when the flushing liquid is supplied from the pump. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A hand-held biopsy device, comprising:
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a hollow needle with a distal end portion having a cutting edge; a sample-receiving device having a cavity for receiving at least one severed tissue sample, the sample-receiving device being received in the hollow needle, the hollow needle configured to be moved relative to the sample-receiving device; a transport device configured to move the sample-receiving device in the hollow needle between an extended position and a retracted position; and a liquid supply unit having a sample flushing chamber and a pump in fluid communication with the sample flushing chamber, the pump being configured to supply a flushing liquid to the sample flushing chamber, the sample flushing chamber having an upper opening and a lower opening, wherein the cavity is aligned with the upper opening and the lower opening of the sample flushing chamber to facilitate a tissue sample ejection by a flushing liquid supplied by the pump only when the sample-receiving device is positioned at the retracted position. - View Dependent Claims (16, 17, 18)
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Specification