Lung puncture localization needle

Abstract

The invention relates to a lung puncture localization needle with the advantages of simple structure, low cost, operation convenience, low bleeding risk and high localization accuracy. The lung puncture localization needle consists of a needle core, a cannula and a sacculus tube, wherein the needle core and the sacculus tube can be inserted into the cannula; the sacculus tube is made of elastic fluorescent materials; the inside of the sacculus tube is hollow; a valve is arranged at an opening of one end; only the inward injection can be realized, but the automatic outward discharging cannot be realized; and the other end of the sacculus tube is connected with a sacculus, so that the sacculus expands or shrinks since air (or liquid) is injected into or extracted out from the opening. The needle core is inserted into the cannula to be tightly fit and is then pierced into the human body; the needle core reaches the focus through CT (Computerized Tomography) guidance; the needle core withdraws; the sacculus tube is inserted to the bottom; the air (or liquid) is inserted, so that the sacculus expands; then, the sacculus tube withdraws; the sacculus tube is left in the human body; and during subsequent operation, the focus can be localized by localizing the expanded fluorescent sacculus.

Description

[0001] Technical field [0002] The invention relates to a medical positioning device for pulmonary lesions, in particular to a preoperative CT-guided puncture positioning device for small pulmonary lesions. Background technique [0003] At present, clinically, small pulmonary lesions often require preoperative positioning in order to accurately determine the extent of lung tissue resection during surgery. positioning, etc., existing positioning devices have their own technical defects: (1) the positioning hook is easy to scratch the surrounding blood vessels, causing bleeding, and it is difficult to determine the exact location of the positioning hook and the tumor by vision or touch during the operation; (2) staining The localized dye is easy to infiltrate the surrounding tissue, causing inaccurate localization, and it is difficult to find the deep stained area on the lung surface during the operation; (3) The radionuclide localized nuclide material is also easy to infiltrat...

AI Technical Summary

Problems solved by technology

[0003] At present, clinically, small pulmonary lesions often require preoperative positioning in order to accurately determine the extent of lung tissue resection during surgery. positioning, etc., existing positioning devices have their own technical defects: (1) the positioning hook is easy to scratch the surrounding blood vessels, causing bleeding, and it is difficult to determine the exact location of the positioning hook and the tumor by vision or touch during the operation; (2) staining The localized dye is easy to infiltrate the surrounding tissue, causing inaccurate localization, and it is difficult to find the deep stained area on the lung surface during the operation; (3) The radionuclide localized nuclide material is also easy to infiltrate the surrounding tissue, resulting in inaccurate localization. A complete set of equipment, complex operation

Images