A puncture needle assembly used in trigeminal nerve semilunar compression operation

Abstract

The invention relates to surgical instruments used in the trigeminal gasserian ganglion oppression surgery and provides a puncture needle assembly used for the trigeminal gasserian ganglion oppression surgery. The puncture needle assembly comprises a puncture needle tube, a first needle core, second needle cores and a sacculus tube, the puncture needle tube comprises a main needle tube and a needle handle, and the needle handle is provided with an inner cavity; the sacculus tube comprises a contrast agent filling valve, a catheter and a sacculus, and the contrast agent filling valve is connected with the sacculus through the catheter; the front end of the main needle tube is a smooth blunt portion, the needle head ends of the second needle cores and the needle head end of the first needle core are circular-arc-shaped blunt portions, and the main needle tube is sleeved with a first detachable fixing device which is fixed to any position of main needle tube; a second fixing device for detachably fixing the catheter is hinged to the needle handle. The puncture needle assembly is novel and reasonable in structure, on one hand, the first fixing device can be utilized for positioning the stretching length of the main needle tube, on the other hand, the second fixing device can be utilized for fixing the catheter, and oppression accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of neurosurgical medical instruments, in particular to a surgical instrument used in compression of the trigeminal nerve semilunar joint. Background technique [0002] In the early 1980s, Mullan and Lichtor invented the "percutaneous balloon compression of trigeminal ganglion (PBC)" on the basis of improving Shelden and Taarnhoj's craniotomy nerve compression technique. The PBC method avoids the mortality and complications of craniotomy to a large extent because it does not require craniotomy, and the initial research results show that PBC technology has a high success rate, is safe, and is not easy to relapse. At the same time, it is favored and widely used by doctors and patients. At present, PBC technology has been considered as one of the first-choice methods for the treatment of trigeminal neuralgia in the elderly in many western countries. [0003] According to current reports, in patients with pear-...

AI Technical Summary

Problems solved by technology

[0005] 1. The head of the liver puncture needle is pointed, the puncture track is prone to bleeding, and it cannot accurately enter the foramen ovale, or the puncture track is accidental, and it is easy to puncture the foramen ovale tissue, and even easily injure the important blood vessels and nerves of the puncture track

[0006] 2. When the liver puncture needle is used, the positioning is not accurate and it is easy to deviate; the length of the puncture needle is determined by the doctor's hand feeling. Due to the lack of positioning, such a puncture method is very random and can easily lead to surgical accidents

[0007] 3. In order to ensure a satisfactory pear-shaped shape of the balloon, it is necessary to repeatedly adjust the position of the balloon under the C-arm X-ray machine. In addition, due to the unbalanced tension of the balloon after injection of contrast medium, the balloon is easily displaced and difficult to control

Unable to quickly adjust to a satisfactory shape

As a result, patients and surgeons have received X-ray exposure for many times and suffered radiation damage.

[0008] 4. Even after adjusting the position, due to the unbalanced tension of the balloon, the balloon is still easy to deviate from the assumed position. Assuming that the balloon tube is used for compression, not only the positioning of the balloon tube is difficult, but also the balloon in the balloon tube When the balloon is compressed, there is no necessary support, and the balloon is easy to shift with the displacement of the catheter. The randomness is too large, the compression effect is not good, and it is easy to cause the operation to fail

[0009] Therefore, using existing simple surgical instrument components, it is easy to cause poor surgical effect or various complications

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