Nodule body surface positioning device and nodule body surface positioning method according to CT (computed tomography) images

Abstract

The invention discloses a nodule body surface positioning device according to CT (computed tomography) images. The device comprises a support and a first horizontal beam arranged on the support, a first laser projection device orthogonally projecting laser vertically downwards is arranged at the bottom of the first horizontal beam along the length direction, a distance display portion is further arranged on the first horizontal beam, a sliding block is slidably arranged on the first horizontal beam, a second laser projection device is arranged on the sliding block, and a laser ray emitted by the second laser projection device is perpendicular to that emitted by the first laser projection device. The invention further discloses a positioning method of the nodule body surface positioning device according to the CT images.

Description

technical field [0001] The present invention relates to the field of medical devices and methods, in particular to a nodule body surface locating device and nodule body surface locating method combined with CT images, and is especially suitable for locating chest nodules or nodules in other parts. Background technique [0002] With the popularity of low-dose computed tomography (LDCT) scans, more and more solitary peripheral pulmonary nodules (subcentimeter pulmonary small nodules, SPSNS) (nodule diameter <1cm) were detected out. Due to the certain probability of malignancy, the diagnosis and treatment of small pulmonary nodules have become the focus of clinicians. For small pulmonary nodules, traditional inspection methods such as needle biopsy, bronchoscopy, positron emission tomography-X-ray computed tomography (PET-CT) are difficult to diagnose clearly, and video-assisted thoracoscopic surgery (video-assisted thoracoscopic surgery) , VATS) has become an important me...

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Problems solved by technology

However, because the percutaneous lung puncture operation needs to be completed several times under CT monitoring, on the one hand, it increases the patient’s CT radiation dose and CT examination cost, and also increases the workload of medical staff and the dependence on the CT room; Certain risks and complications (severe chest tightness and chest pain after positioning under local anesthesia, pneumothorax caused by puncture of intercostal blood vessels and lung tissue during positioning, sudden pleural reaction after positioning, etc.), so patients need to undergo VATS surgery as soon as possible after positioning

Positioning in a hybrid operating room can shorten the process and time from positioning to surgery, and can effectively reduce the occurrence of related complications. However, at present, the number of hybrid operating rooms is small and resources are limited, which limits its development.

Moreover, after local anesthesia with the Hookwire, the Hookwire may be displaced or even prolapsed in the lung due to respiratory activity or irritating cough, which may lead to conversion to thoracotomy or even surgical failure.

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