23 Jul Bionical vibration biopsy sampling device
Abstract
The utility model belongs to the biomedical engineering field is a bionical vibration biopsy sampling device. It includes feeding device, biopsy needle anchor clamps, biopsy needle, feeding device fixes inside handheld handle including handheld handle, piezoceramics actuator, piezoceramics actuator to being connected through biopsy needle anchor clamps and biopsy needle, making the biopsy needle sample process follow the vibration of specific frequency and amplitude, piezoceramics actuator control port links to each other with external controller. Biopsy needle outside surface is provided with the axial and leads to groove and horizontal spacing groove, and the slip spanner that links firmly with the nook closing member can lead to the inslot slip and can dial to horizontal spacing groove in the axial, and nook closing member afterbody and a spring link to each other, the syringe needle internal surface is provided with and cuts off sword, barb, axial slot and horizontal slot, and the design of these structures is favorable to the tissue to cut off taking out. The utility model discloses can effectively reduce the frictional force of the process of pierceing, reduce tissue deformation and biopsy needle and pierce crooked degree to improve the biopsy precision.
Year: 2015
Country: CN
Doc No: 204600538