Transport system for biopsy device
First Claim
1. A method of operating a biopsy device for removing at least one tissue sample from a body of a living being, the biopsy device comprising:
- providing a hollow needle having a longitudinal axis, a proximal end and a distal end;
moving a sample-receiving device received in the hollow needle from a retracted position to an extended position to expose a cavity in the sample-receiving device, the cavity configured to receive a tissue sample;
operating a drive mechanism to displace the hollow needle in a distal direction relative to the sample-receiving device to sever tissue received by the cavity of the sample-receiving device;
rotating a gear to move a toothed flexible member along the longitudinal axis to move the sample-receiving device in the hollow needle from the extended position to the retracted position, the toothed flexible member having a proximal portion that extends proximal to the proximal end of the hollow needle; and
receiving the proximal portion of the toothed flexible member in a helical coiling-up groove of a housing element when the sample-receiving device is moved to the retracted position.
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Abstract
A method of operating a biopsy device includes providing a hollow needle having a longitudinal axis; moving a sample-receiving device received in the hollow needle from a retracted position to an extended position to expose a cavity in the sample-receiving device, the cavity configured to receive a tissue sample; displacing the hollow needle in a distal direction relative to the sample-receiving device to sever tissue received by the cavity of the sample-receiving device; moving a toothed flexible member along the longitudinal axis to move the sample-receiving device in the hollow needle from the extended position to the retracted position, the toothed flexible member having a proximal portion that extends proximal to the proximal end of the hollow needle; and receiving the proximal portion of the toothed flexible member in a helical coiling-up groove of a housing element when the sample-receiving device is moved to the retracted position.
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Citations
4 Claims
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1. A method of operating a biopsy device for removing at least one tissue sample from a body of a living being, the biopsy device comprising:
- providing a hollow needle having a longitudinal axis, a proximal end and a distal end;
moving a sample-receiving device received in the hollow needle from a retracted position to an extended position to expose a cavity in the sample-receiving device, the cavity configured to receive a tissue sample;
operating a drive mechanism to displace the hollow needle in a distal direction relative to the sample-receiving device to sever tissue received by the cavity of the sample-receiving device;
rotating a gear to move a toothed flexible member along the longitudinal axis to move the sample-receiving device in the hollow needle from the extended position to the retracted position, the toothed flexible member having a proximal portion that extends proximal to the proximal end of the hollow needle; and
receiving the proximal portion of the toothed flexible member in a helical coiling-up groove of a housing element when the sample-receiving device is moved to the retracted position. - View Dependent Claims (2, 3, 4)
- providing a hollow needle having a longitudinal axis, a proximal end and a distal end;
Specification