Marker for positioning small space occupying lesion in lung and marker positioning system

Abstract

The invention discloses a marker for positioning small space occupying lesion in lung and a marker positioning system. The marker for positioning small space occupying lesion in lung comprises a marker body, wherein the marker body comprises a head and an automatic expansion structure which can radially expand after being released from a compression device, and the automatic expansion structure isconnected with the head. The automatic expansion structure forms an umbrella structure with a head end and a split end after being released from the automatic expansion structure, and the marker alsocomprises a flexible pulling line which is provided with a fixing segment and a reserving segment; the fixing segment is fixed to the head, and the reserving segment is reserved to the marker body onthe surface of the lung for indicating an operator, and pulling force can be exerted to enable the part of tissue to be cut off to be outstanding. The marker can be fixed to the inner part of the lung, and a user can directly view from the surface of the lung, and can support the pulling on the lung tissue.

Description

technical field [0001] The present invention relates to the field of medical devices, in particular to a marker used in lung surgery to precisely locate tiny space-occupying lesions in the lung, and a positioning system for accurately delivering the marker to a designated position in the lung. Background technique [0002] For early-stage lung cancer, suspected malignant pulmonary nodules, surgery is the best way to cure them. However, only relying on CT tomographic images, it is difficult to accurately determine the location of the lesion in actual surgery, so as to accurately resect the lesion area. Even if a large piece of lung tissue is resected, it is difficult to quickly find and remove the diseased tissue from the isolated tissue to obtain an intraoperative pathological report and guide further surgical methods. [0003] The Chinese invention patent application with the application number 201610167531.9 discloses the structure of a marker in the lung. After this stru...

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Problems solved by technology

[0003] The Chinese invention patent application with the application number 201610167531.9 discloses the structure of a marker in the lung. After this structure is implanted in the lung, the doctor cannot intuitively find the position of the marker, and needs to rely on the hand to sense the marker. Markers are still very difficult

[0004] The Chinese invention patent application with the application number 201410113859 discloses a marker that can be found on the surface of the lungs, but its structure is not only not suitable for lesions of any depth, and its method of fixing in the lungs by relying on burrs is also not suitable for the lungs. hollow organ

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