Intrathoracic L-shaped positioning device adopting 3D printing in endoscopy and manufacturing method thereof

Abstract

The invention discloses an intrathoracic L-shaped positioning device adopting 3D printing in an endoscopy and a manufacturing method thereof. The L-shaped positioning device is an L-shaped hollow tube adopting the 3D printing and comprises a vertical section, an elbow and a horizontal section, wherein a head end fit with the top face of the thorax of a patient is arranged at the top of the vertical section, the tail end of the horizontal section is closed, and a nidus marking device connected with the hollow tube is arranged on the horizontal section. When the intrathoracic L-shaped positioning device is used, the positioning device is arranged and fixed in the thorax of the patient in a conformal mode and marks the ground-glass node position of the lung through the nidus marking device. The L-shaped positioning device avoids the problem that a node and a hook-wire cannot be touched by adopting a method of touching by hand or a micro-coil is unhooked or falls into the thoracic cavity, the CV exposure to the patient and the working amount of a medical worker are decreased, and meanwhile the influence on the ribs or shoulder blades due to dissection is eliminated.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a 3D printed L-shaped intrathoracic intrathoracic positioning device and a preparation method thereof. Background technique [0002] Pulmonary ground-glass nodules are mildly increased densities on CT images, but the bronchovascular bundles within them can still be displayed. This sign is often the manifestation of early lung disease. Timely detection and diagnosis are of great significance for correct clinical treatment and prognosis. It is an indication for laparoscopic surgery. However, because the lesion is small and the chest cavity is an internal cavity, Pulmonary ground-glass nodules are difficult to pinpoint precisely because lung tissue and the thorax move with breathing. [0003] At present, there are three main methods for determining pulmonary ground-glass nodules (GGO): 1. Intraoperative exploration and positioning: During surgery, according to the approxi...

AI Technical Summary

Problems solved by technology

[0004] However, the existing technology may have the following problems: the mass cannot be touched by manual palpation: the diameter of the lung ground-glass nodule is too small, the depth from the subpleural depth of the visceral layer is too deep, or the texture is soft and difficult to distinguish from the surrounding normal lung tissue. The difficulty of palpation makes it difficult to accurately locate the nodules, which eventually leads to inability to completely resect the pulmonary nodules; ribs / scapulas affect positioning: due to anatomical reasons, pulmonary ground-glass nodules (GGO) in the lung tissue covered by ribs / scapulas cannot pass through the body Puncture method for positioning; positioning device falling: For small nodules that are relatively close to the visceral pleura and shallow, the hook-wire positioning needle and micro-coil micro-coil are used for lung puncture positioning because the puncture is too shallow. Incomplete penetration into the lung parenchyma may cause the positioning needle or coil to fall off and fall into the thoracic cavity; pneumothorax: for lung puncture with hook-wire positioning needle or micro-coil micro-coil, sometimes repeated punctures are required for accurate positioning. It is easy to cause lung rupture and cause pneumothorax, and the patient has symptoms such as chest tightness, shortness of breath, and dyspnea, or the positioning needle accidentally injures a blood vessel, causing bleeding, or even hemothorax, and the patient has hemorrhagic shock, such as pulse speed and blood pressure drop. Radiation radiation effects: preoperative Puncture positioning guided by CT via hook-wire positioning needle or micro-coil microcoil requires multiple CTs in a short period of time to determine the positioning site, which increases the radiation dose received by patients and doctors

Images