Lateral guide opening puncturing needle

Abstract

The invention discloses a lateral guide opening puncturing needle, which comprises a needle tube part, wherein scales are arranged on the needle tube part; one end of the needle tube part is provided with a needle tail part; the other end of the needle tube part is a needle point part; the needle point part is a blind end; one end, near the needle point part, of the needle tube part is provided with a guide opening provided with a lateral opening; the guide opening and the blind end of the needle tube part form a guide angle alpha. By using the technical scheme, the lateral opening is formed; during the puncture diagnosis and treatment of the puncture needle, the puncture needle with the lateral opening can be rotated so that the opening points to different directions; when important organs, blood vessels, bones and the like shield on the periphery of the lesion, the shielding parts are bypassed on the basis of the main puncture passage, and the direction change puncture is realized; when the puncture needle punctures the periphery of the lesion instead of the lesion, the lesion can be punctured in a direction changing way; the material taking or medication in a tumor body in different directions can also be realized; the multi-point material taking in real sense, the multi-directional medication in the tumor body and the particle uniform planting and distribution are realized.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a puncture needle with a lateral guiding opening. Background technique [0002] When puncturing with a traditional puncture needle, the puncture path is often selected based on the operator's experience, and the puncture is performed blindly. The needle insertion angle is not accurate, the error is large, and the puncture success rate is low. Irregularity, more complications, and higher radiation doses to patients. When conventional puncture needles are used for puncture diagnosis and treatment, materials or medication can only be obtained from the needle tip. To achieve multi-directional operations, the only way to increase the number of punctures is to significantly increase the chance of complications. The puncture success rate of ordinary puncture needles is generally about 60%, and the complication rate is about 70%. [0003] At present, in order to reduce the number of ...

AI Technical Summary

Problems solved by technology

[0003] At present, in order to reduce the number of punctures and effectively obtain materials or medicines from the lesion, the method of using the main puncture needle and the treatment needle together is adopted, that is, the diagnosis and treatment needle is made of memory metal, and the diagnosis and treatment needle is bent before puncture. Metal memory, the diagnosis and treatment needle still maintains the angle before the puncture after passing through the main puncture needle, and the angle of the diagnosis and treatment needle is continuously changed during the puncture to obtain materials or medicine. Although this method solves the above problems in theory, the diagnosis and treatment The needle is made of memory metal material, and its preparation process is relatively complicated. It is difficult to control the flexibility and hardness to an appropriate degree, and it is difficult to maintain the memory angle in the solid tissue. It is practically impossible to realize large-scale use. At present, this puncture method is only theoretically possible.

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