Patent ID: 9295455
Filing Date: 2016-03-29
CPC Classification: A61B

Claim Text:
1. A biopsy system for performing biopsy of a bioptic target part in a living body comprising: an ultrasonic probe positionable in and removable from the living body and comprised of a main body section and a sensor section configured to transmit signals which are reflected off the bioptic target part in the living body and receive the reflected signals to produce a tomographic image of the bioptic target part; a guide wire possessing a distal end configured to puncture the bioptic target part so that the guide wire is in a punctured state; the main body section of the ultrasonic probe including a guide wire insertion hole having open opposite ends for receiving the guide wire, the ultrasonic probe being movable along the guide wire when the guide wire is positioned in the guide wire insertion hole, the main body possessing a longitudinal axis, and one of the open opposite ends of the guide wire insertion hole being a distal end; a biopsy device movable along the guide wire while the guide wire is in the punctured state and after the ultrasonic probe is removed from the living body to guide movement of the biopsy device to the bioptic target part, the biopsy device being configured to contact the bioptic target part and obtain a tissue sample of the bioptic target part for biopsy; an adiustable control piece which is adiustable to vary an angle of inclination of the control piece relative to the longitudinal axis of the main body section, the adiustable control piece being positioned at a protrusion port connecting with the distal end of the guide wire insertion hole so that the guide wire positioned in the guide wire insertion hole and moved in a distal direction contacts the control piece to control an angle of inclination at which the guide wire protrudes from the guide wire protrusion port; a control unit connected to the adiustable control piece to adjust the control piece; and wherein the control unit measures a lower-limit distance from a part of the probe to a lower limit position of the bioptic target part and an upper-limit distance from the part of the probe to an upper limit position of the bioptic target part, based on the tomographic image of the bioptic target part produced by the probe, and adjusts the control piece to an angle calculated based on the lower-limit distance, the upper-limit distance, and a distance from the sensor section to the protrusion port.