Novel lung tumor locating needle

Abstract

The invention relates to a novel lung tumor locating needle. The novel lung tumor locating needle comprises a puncture needle, anchoring locating needles, a locating line and a pushing device, wherein the puncture needle is composed of a puncture needle cannula and a puncture needle handle, the pushing device comprises a pushing tube and a pushing tube handle, the pushing tube is arranged in the puncture needle cannula, the far end of the pushing tube abuts against the near ends of the anchoring locating needles, the width of the near ends of the anchoring locating needles is larger than or equal to the outer diameter of the pushing tube, the far end of the locating line is connected with the near ends of the anchoring locating needles, the locating line extends out of the exterior of the pushing device from the interior of a tube cavity of the pushing tube, the far end of the locating line is provided with multiple colored bands with different colors, and the length of each colored band ranges from 3 mm to 15 mm. According to the novel lung tumor locating needle, the functions of determining lesion localization and measuring the depths of lesions are achieved simultaneously, the lung or parts of the lung can be lifted up, excision of the lesions is convenient for a surgeon, and the depths of the lesions can be measured during an operation.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a novel lung tumor positioning needle. Background technique [0002] With the development of imaging diagnostic technology, the detection of early lung lesions has become earlier and easier, and the detection rate of small pulmonary nodules requiring surgical treatment has also become easier. At present, for small pulmonary nodules larger than 1 cm, the location of the small pulmonary nodules can be determined by visual observation and finger palpation. The failure rate of the traditional localization method reaches more than 50%, and there is an excessively large surgical resection range, which increases the risk of trauma to the patient. [0003] At present, preoperative positioning is generally achieved by CT-guided percutaneous puncture to locate small pulmonary nodules. Commonly used positioning materials include metal materials (wires with hooks, helical wires,...

AI Technical Summary

Problems solved by technology

At present, for small pulmonary nodules larger than 1 cm, the location of the small pulmonary nodules can be determined by visual observation and finger palpation. The failure rate of the localization method reaches more than 50%, and there is an excessive surgical resection, which increases the risk of trauma to the patient

[0003] At present, preoperative positioning is generally achieved by CT-guided percutaneous puncture to locate small pulmonary nodules. Commonly used positioning materials include metal materials (wires with hooks, helical wires, and microcoils). Hook-wire, its positioning hook can be fixed in the lung, but a metal wire (Hook-wire) designed for breast diseases is often used as a positioning needle, and there are defects in the positioning of pulmonary nodules: First, there is only a barb-shaped positioning hook at the end of the wire (Hook-wire), and the front part of the wire (Hook-wire) is fixed on the chest wall. Due to the linkage effect of the wire (Hook-wire) due to respiratory movement, The stronger the connection with the chest wall, the more likely the positioning hook will be displaced and fall off. Second, the puncture needle matched with the wire (Hook-wire) has no needle core, which will aggravate the damage of lung tissue during the puncture process and increase the risk of pneumothorax. , the incidence of bleeding; third, there is no scale mark on the end of the wire (Hook-wire), and the depth of the lesion cannot be determined. During the operation, it is easy to cause the resection range to be too large, which will reduce the quality of life of the patient or cause the wire (Hook-wire) Medical accidents caused by being cut off: Fourth, after the Hook-wire is positioned, keeping the patient in a fixed position for a long time will cause discomfort, limb numbness, pain, etc., so the patient needs to be transferred to the operating room for surgery as soon as possible, which causes surgery Chamber turnover tension

[0004] The Chinese patent with the patent publication number "CN 204016436" discloses a small pulmonary nodule puncture positioning needle, which reduces the problem of falling off compared with the metal wire (Hook-wire), but fails to substantially solve the displacement and falling off of the positioning needle

There are three evenly distributed J-shaped hooks on the head of the needle core, and a silk thread on the tail of the needle core. The silk thread is used to fix the patient's body surface during the surgical positioning process. Also, the linkage effect of the silk thread will be caused by the remote movement of breathing, and the silk thread is fixed. The firmer it is, the easier it is for the needle core to shift and fall off; especially during the operation, when the surgeon clamps the bronchus and removes the gas in the alveoli, causing the lung to collapse, it is very easy to cause the needle core to shift and fall off

The needle core has no scale marks, and the depth of the lesion cannot be determined, which may easily cause excessive lung tissue resection, resulting in excessive trauma to the patient, prolonging the recovery period and reducing the quality of life of the patient, or causing the needle core to be cut off and causing medical accidents

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