Artery-vein puncture needle with novel structure and functions

Abstract

The invention belongs to the technical field of medical treatment articles and discloses an artery-vein puncture needle with novel structure and functions. The artery-vein puncture needle is providedwith an injection pipe, a thermal insulation cotton cushion, a rubber sleeve, a thin thread, a protecting cover, a syringe needle, a phosphorescent band and a plastic cavity, wherein the lower part ofthe injection pipe is wound with the thermal insulation cotton cushion; the left end of the rubber sleeve is connected with the protecting cover through the thin thread; the syringe needle is coveredwith the protecting cover; the protecting cover is wound with the phosphorescent band; and the right end of the rubber sleeve is connected with the plastic cavity through the thin thread. According to the artery-vein puncture needle, the protecting cover and the syringe needle are connected together through the thin thread, so that the situation that a user is punctured by the exposed syringe needle after the protecting cover is lost is prevented; the temperature of liquid in the injection pipe is maintained by virtue of the thermal insulation cotton cushion, so that the situation that a patient feels uncomfortable when the medical liquid is too cold is prevented; the phosphorescent band is capable of emitting light at night, so that a medical worker can conveniently find blood vessels; and the syringe needle can be inserted into the plastic cavity so as to completely discharge residual liquid after the transfusion, so that the situation that the environmental health is influenced bythe residual liquid is prevented.

Description

technical field [0001] The invention belongs to the technical field of medical supplies, in particular to an arterial and venous puncture needle with a novel structure and function. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] In clinical treatment, arteriovenous puncture needles are widely used in hemodialysis; however, the protective cover of the existing arteriovenous puncture needles is separated from the needle, which is easy to lose; due to the dark light at night, the needles are small and difficult to puncture; If the liquid is too cold, it will cause discomfort to the patient; after injection, the residual liquid is easy to leak into the surrounding environment, which is unfavorable for hygiene. [0004] When a lesion occurs inside the human body, and the patient's physical condition does not allow surgical resection, sometimes it is necessary to use puncture to biopsy or treat the lesio...

AI Technical Summary

Problems solved by technology

[0008] The protective cover of the existing arteriovenous puncture needle is separated from the needle, which is easy to lose; the light is dark at night, and the needle is small, so it is not easy to puncture; the liquid is too cold during injection, which will cause discomfort to the patient; the residual liquid after injection is easy to leak into the surrounding environment , unhealthy

[0009] The existing stereotaxic technology is difficult to apply to other parts of the human body, the main reason is that the position of soft tissue in other parts of the human body is not fixed relative to the surrounding bone tissue, making it difficult to obtain consistent coordinate positioning between the image space and the patient space

Therefore, the interventional puncture of other parts of the human body does not have a fixed guiding positioning / posture device that can fix the direction of the puncture needle. Usually, real-time CT images are used to guide, but because there is no puncture guiding positioning / posture, there are still gaps in the puncture process. Blindness, the puncture instrument in the hands of the doctor does not have an objective and accurate position mark, it is difficult to fix the puncture needle on the predetermined trajectory during the puncture process, only relying on the doctor's personal experience, it is necessary to continuously perform image scanning to adjust the direction, the final result may still be There is a certain deviation from the ideal planned route, which is time-consuming and affects the treatment effect

In addition, when the doctor holds the puncture needle with his hand during the CT scan, he will suffer unnecessary radiation exposure

[0010] Due to many human factors, the needle insertion is often inaccurate, which affects the treatment accuracy.

Sometimes it is necessary to repeat the needle for many times, and in severe cases, it will lead to mispuncture, which will bring great pain and risk to the patient

In addition, for tumor patients, incomplete resection may occur during surgery, which is also a serious hidden danger for patients, and may cause recurrence and other consequences due to incomplete tumor resection

[0011] In the prior art, it is impossible to estimate the carrier frequency of the PSK signal under the Alpha stable distributed noise; it does not have good estimation performance in the environment of low signal-to-noise ratio

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