Thyroid cyst aspiration device

Abstract

The invention discloses a thyroid cyst aspiration device which comprises a cannula base, a puncture needle and a negative-pressure aspirator. A soft indwelling needle is arranged at the front end of the cannula base, the puncture needle comprises a needle head and a needle handle, the needle head penetrates through the cannula base to be sleeved by the soft indwelling needle, the needle handle isslidingly in sleeved connection with the cannula base, a reset spring is arranged between the needle handle and the inner wall of the cannula base, an air bag is arranged at the position, close to theneedle tip, of the soft indwelling needle, an air cavity is formed in the soft indwelling needle, the outer surface of the soft indwelling needle is provided with an inflation ball communicated withthe air cavity, the air bag is communicated with the air cavity through an inflation tube, and a drainage channel is formed between the outer wall of the needle head and the inner wall of the soft indwelling needle. The cannula base is provided with a liquid suction port and a medicine injection port, one end of the liquid suction port is communicated with the drainage channel, the other end of the liquid suction port is communicated with the negative-pressure aspirator, the medicine injection port is communicated with the drainage channel and is provided with a valve, and a stop valve adjustable in angle is arranged in the inner cavity of the cannula base. The thyroid cyst aspiration device with the structure can reduce the infection possibility and can also improve a treatment effect.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a thyroid cyst suction device. Background technique [0002] Thyroid cyst refers to the fluid-containing cyst found in the thyroid gland, which is a common benign thyroid lesion. The most minimally invasive and effective treatment method is: firstly, use a puncture needle to penetrate the thyroid cyst, pump out the fluid in the cyst, and then Inject triamcinolone acetonide acetate or absolute alcohol into the capsule. Simply pumping out the liquid in the cyst can only reduce the internal pressure, and has no therapeutic effect. Only after the liquid in the cyst is pumped out, therapeutic drugs such as triamcinolone acetonide acetate or absolute alcohol are injected to make the protein on the inner wall of the cyst cavity deteriorate. Only by destroying the glands on the inner wall of the cyst and closing the cyst can the purpose of treatment be achieved, and at the same time, ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: 1) Multiple punctures increase the probability of infection and significantly increase the pain of the patient; 2) Inject the drug after the needle is withdrawn, because part of the cystic fluid has been aspirated and the cystic cavity has begun to close, so It is easy to cause the drug to be unable or difficult to inject into the cyst cavity smoothly, thus affecting the final therapeutic effect

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