A set of implanting needle applicators

Abstract

The present invention relates to a set of needle applicators for inserting and planting needles, including an applicator sleeve inserted into the vagina. The front end of the applicator sleeve is provided with a circle origin, and a positioning core is arranged in the applicator sleeve. The positioning core is inserted into the applicator sleeve from the rear end of the applicator sleeve, the positioning core is provided with a positioning guide hole, and the implanting needle protrudes from the front end of the applicator sleeve through the positioning guide hole. The beneficial effects of the present invention are: using the applicator sleeve with versatility as the positioning reference in the vagina; using the 3D shaped positioning core, which can significantly reduce the operation complexity of implanting needle radiotherapy and reduce the patient's tolerance; using the sleeve The positioning core can no longer rely on vaginal images to make a 3D printed positioning core, which is versatile and can further improve efficiency and reduce costs. A set of sleeve positioning cores with different displacements of guide sleeves can obtain better positioning accuracy and support Multiple insertion needles are used, and the ball head rod with an expanded ball head can make the applicator sleeve more convenient and smoothly inserted into the vagina.

Description

technical field [0001] The invention belongs to radiotherapy equipment, in particular to a source applicator for inserting and planting needles in a set. Background technique [0002] Radiation therapy is one of the main treatment methods for cervical cancer. The use of implant needles as source applicators can make the radiation source directly enter the lesion area, and increase the radiotherapy dose of the lesion area without increasing the damage of surrounding normal tissues. Theoretically, it can be obtained The best radiotherapy effect, because there is no nerve touch at the bottom of the vagina, the use of implant needles is more minimally invasive, efficient, and less painful. It has become the main technical means of radiotherapy for cervical cancer. It can be used for radiotherapy of postoperative stumps and can also be used for Cancer patients who are not suitable for surgery. The main technical problem faced by implantation needle radiotherapy is the insertion ...

AI Technical Summary

Problems solved by technology

However, this method can obtain high-precision molds for individual patients, but the vaginal modeling process is complex and inefficient. The repeatability is not completely guaranteed, and a patient may need to make molds many times

At present, there are also some fixed needle applicators, but these applicators use fixed needle guide holes, cannot change the position, and cannot obtain higher-precision dwell points

In addition, a problem with gynecological radiotherapy is that straight implant needles cannot reach lesions that deviate laterally from the vagina, and sometimes it is necessary to insert implant needles into the body from the perineum, causing great trauma and high pain to the patient.

At present, although there are flexible implant needles that can be bent and inserted into tissues, their application is greatly limited due to the lack of suitable applicators.

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