Vacuum-assisted breast biopsy rotary cutting system

Abstract

The vacuum-assisted breast biopsy rotary cutting system comprises a biopsy needle with an inner needle tube and an outer needle tube, a driving handle for outputting power at different positions to drive the inner needle tube or the outer needle tube to do mechanical movement, and a vacuum negative pressure device for providing required stable vacuum negative pressure for the biopsy needle. When the driving handle outputs power at the first position, the outer needle tube is driven to rotate, and the vacuum negative pressure is closed; when the power is output at the second position, the inner needle tube is driven to rotate and move to a set position, and the vacuum negative pressure is started according to a set vacuum negative pressure value; when the power is output at the third position, the inner needle tube is driven to only rotate at the set position, and the vacuum negative pressure is started according to the set vacuum negative pressure value; under the suction of the required stable vacuum negative pressure, focus tissues in different directions and in different sizes can be accurately cut and conveyed out of a body, liquid medicine / cleaning liquid can be released or blood / cleaning liquid can be sucked and removed at an operation point according to needs, and the effectiveness, safety and efficiency of a biopsy rotary cutting operation are improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a vacuum-assisted breast biopsy rotary cutting system. Background technique [0002] Vacuum-assisted breast biopsy rotary cutting system is mainly used for cutting, sampling or treatment of diseased tissue in minimally invasive surgery. [0003] In the prior art, the length of the rotary cutting groove of the vacuum-assisted breast biopsy rotary cutting system cannot be adjusted, and the lesion tissue cannot be accurately cut according to the size of the diseased tissue. Moreover, the direction of the rotary cutting groove cannot be adjusted by the biopsy needle, and the liquid / Release of cleaning fluid. [0004] Since the vacuum negative pressure of the suctioned tissue in the vacuum-assisted breast biopsy rotary cutting system needs to be provided by the operation of the vacuum pump, when the vacuum pressure value reaches the preset value, the vacuum pump stops worki...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the length of the rotary cutting groove of the vacuum-assisted breast biopsy rotary cutting system cannot be adjusted, and the lesion tissue cannot be accurately cut according to the size of the diseased tissue. Moreover, the direction of the rotary cutting groove cannot be adjusted by the biopsy needle, and the liquid / medicine cannot be performed at the operation site. release of cleaning solution

[0004] Since the vacuum negative pressure of the sucked tissue in the vacuum-assisted breast biopsy rotary cutting system needs to be provided by the operation of the vacuum pump, when the vacuum pressure value reaches the preset value, the vacuum pump stops working, and when the vacuum negative pressure value is lower than the preset value , The vacuum pump starts to work, frequently starts or shuts down the vacuum pump, it is easy to cause product vibration and loud noise, which reduces the service life of the vacuum pump, and the required vacuum negative pressure is unstable and has a delay waiting period, which cannot effectively absorb tissue or Absorb blood / cleaning fluid

[0005] In view of the defects in the existing technology, it is urgent to design an improved vacuum-assisted biopsy rotary cutting system to solve the problem that the length of the rotary cutting groove in the prior art is not adjustable, the direction of the rotary cutting groove is inconvenient to adjust, and the biopsy cannot be performed at the operation point. The release of liquid / cleaning liquid and the inability to absorb blood / cleaning liquid through vacuum negative pressure

Images