| 摘要 |
Provided are a biopsy device and system for effectively collecting tissue samples by cutting human tissue. The biopsy device of the present invention consists of a needle, a cutter, a drive mechanism, a vacuum line and an air inlet line. The biopsy system of the present invention comprises: a vacuum source connected to the vacuum line; and a solenoid actuator for closing and opening the passageway by pressing and releasing a flexible tube of the air inlet line. The present invention creates the atmospheric pressure at the rear end of the transporting direction of a tissue sample while creating a low pressure at the front end of the transporting direction of the tissue sample by suction of the vacuum source, thereby generating a pressure difference between the front end and the rear end of the transporting direction of the tissue sample, and thus has an effect of smoothly transporting tissue samples. |
| 主权项 |
1. A biopsy device for cutting tissue and collecting a tissue sample, comprising:
a needle including a proximal end blocked by a tip, a distal end, a passageway and a sample receiving port configured to introduce the tissue and formed on an outer surface of the needle neighboring the distal end so as to communicate with the passageway; a cutter disposed in the passageway of the needle so as to make rotation and translational movement, the cutter including s proximal end disposed within the passageway of the needle, a distal end disposed outside the passageway of the needle and a passageway communicating with the passageway of the needle; a drive mechanism configured to cause the cutter to make rotation and translational movement; a vacuum line configured to suck the tissue and the tissue sample and connected to the passageway of the cutter; and an air inflow line configured to interconnect the passageway of the needle and the atmosphere existing outside the needle so as to create an atmospheric pressure within the passageway of the needle neighboring a transport-direction rear end of the tissue sample when sucking the tissue sample. |
