Breast mass positioning needle

Abstract

The invention discloses a breast mass positioning needle. The breast mass positioning needle comprises a needle sheath, wherein a puncture needle fixer is sleeved on the needle sheath; a tilted sharp end is arranged on the puncture needle fixer; a puncture needle is arranged in the needle sheath; a needle head is arranged at the end part of the puncture needle; barbs capable of being expanded and ejected in the radial direction of the puncture needle are arranged on the needle head; the three barbs are uniformly arranged around the puncture needle; and the puncture needle and the barbs are made of metal. The breast mass positioning needle has the following advantages: 1, the barbs are arranged at the head end of the puncture needle and can tightly grasp a breast mass after being released, so that the puncture needle is effectively prevented from being shifted and the breast mass can be stereoscopically and accurately positioned; the barbs capable of being expanded and ejected in the radial direction of the puncture needle are arranged on the needle head; and the barbs tightly grasp the breast mass after being ejected, so that the positioning needle is prevented from falling; 2, both the needle sheath and the puncture needle are provided with scale, so that the depth of the breast mass can be judged, thereby being favorable for operation; and 3, the puncture needle is easy to operate and simple to release.

Description

technical field [0001] The invention relates to a medical device, in particular to a breast mass positioning needle. Background technique [0002] Breast lumps are one of the common diseases in women. As we all know, early detection, early diagnosis, and early symptomatic treatment can eliminate breast cancer and other breast lesions in the bud. However, breast lumps with a diameter of less than 1 cm, especially less than 0.5 cm, are often unable to be operated accurately because the surgeon cannot touch or palpate clearly, especially after local anesthesia, tissue edema, and the mass is difficult to locate and find, resulting in difficulty in resection and delay treat. [0003] At present, the methods for preoperative positioning include injecting methylene blue or using mammary gland positioning needles. The former causes inaccurate positioning because methylene blue is easy to diffuse around; The positioning pin can be displaced during moving or operation, and the posit...

AI Technical Summary

Problems solved by technology

[0006] However, this technical solution has the following disadvantages in use: 1. When inserted into the tumor, "the positioning needle can move freely along the axial direction of the hollow tube puncture needle", and the tumor positioning needle is easy to move, so that the positioning needle cannot be inserted into the inside of the tumor , Positioning is aimed at the situation that the positioning of the tumor is not firm, and repeated insertion of the positioning needle increases the pain of the patient and prolongs the operation time; Take out the puncture needle from the hollow tube and observe the insertion depth of the positioning needle. It often appears that the insertion depth of the positioning needle cannot meet the requirements and the fixation is not firm. 3. Hydroxyapatite is a brittle material. In actual operation, After the needle with the barb is inserted into the tumor, sometimes the tumor positioning needle needs to be bent according to the actual situation, and the positioning needle is easily damaged during the bending process; 4. The needle of the positioning needle is provided with a barb, and the positioning needle There is a barb on the needle. Due to the nature of the hydroxyapatite material, the barb and the needle are integrated into a non-elastic barb. In actual use, the gripping force is not strong and the positioning is not firm.

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