Spinal puncture guide needle

Abstract

The invention discloses a spinal puncture guide needle. A plurality of channels for radio-frequency electrodes to enter are formed in the guide needle; the inlet ends of the channels are positioned on the tail part of the guide needle; the outlet ends of the channels are positioned on the head of the guide needle; the plurality of channels comprise at least one parallel channel and a plurality of oblique channels; the parallel channel and the oblique channels are parallel to each other at the inlet ends; the parallel channel keeps in parallel with the inlet ends at the inlet ends; the oblique channels incline relative to the inlet ends at the outlet ends; the oblique channels incline towards one direction at the outlet ends; the inclination angle of each oblique channel differs. According to the spinal puncture guide needle, the insertion directions of the radio-frequency electrodes are guided accurately, so that spinal tumors are ablated through multi-needle accurate guided puncture, the radio-frequency electrodes reach a predetermined spinal position according to a designed angle direction, a whole spinal structure can be covered fully, all tumor tissues in a whole spinal body are ablated at one time, an effect of killing all the tumor cells in the whole spinal body is achieved, the operation time is shortened, and pain of a patient is relived.

Description

technical field [0001] The invention belongs to the technical field of radio frequency ablation and puncture equipment, in particular to a spinal puncture guide needle. Background technique [0002] The complexity of the anatomical structure of the spinal cone makes surgical treatment of spinal cone tumors difficult. In recent years, more and more scholars have applied radiofrequency ablation technology to the treatment of spinal cone tumors, and achieved good results. Therapy offers a new avenue. [0003] Radiofrequency ablation is a non-vascular interventional technique. Guided by various real-time imaging techniques, radiofrequency electrode needles are inserted into tumor tissue. Ion vibrations generate frictional heat, which causes thermal damage to a certain range of tumor tissue around the electrode and coagulation and necrosis, achieving the effect of killing tumor cells. [0004] Traditional spinal radiofrequency ablation uses a single-channel puncture technique, ...

AI Technical Summary

Problems solved by technology

Since only one radiofrequency electrode can be inserted at a time, the ablation range of one radiofrequency electrode is limited. For large vertebral tumors, especially large tumors located in the vertebral body, the ablation range of one radiofrequency electrode often cannot cover the entire tumor organize

At the same time, the percutaneous puncture is through the pedicle. The pedicle is located in the middle and upper part of the posterior edge of the vertebral body, and its width is generally small. It is difficult for the radio frequency electrode to change direction in the pedicle, and it is difficult to reach the lower part of the vertebral body.

Therefore, it is difficult to kill the entire tumor in the vertebral body at one time, and it is necessary to change the direction or expand the range of ablation by re-punching or multiple punctures. This will increase the operation time, and there is a risk of missing certain parts of the tumor tissue, resulting in postoperative ablation. The tumor relapses rapidly, which affects the curative effect; and multiple puncture ablation aggravates the damage to the patient's body, making the patient more painful

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