A device for controlling puncture depth and hidden needle and its application method

Abstract

The invention discloses a puncture depth control and needle hiding device and a using method thereof. The puncture depth control and needle hiding device comprises a housing and an inner sleeve capable of accommodating a connected injector, wherein the inner sleeve is positioned in the housing and can perform axial motion and circumferential rotation. A plurality of correspondingly-matched axial stroke limiting structures are arranged on the inner wall of the housing and the outer wall of the inner sleeve respectively. The housing and the inner sleeve are both provided with far-end openings and near-end through holes, a spring is arranged between the housing and the inner sleeve, and the two ends of the spring respectively abut against the far-end inner wall of the housing and the near-end outer wall of the inner sleeve to push the near ends of the housing and the inner sleeve to be separated and enable the inner sleeve to be kept at an initial axial position with respect to the housing. A length marking part and a directional sign part which correspond to the syringe needle of the injector are arranged on the peripheral faces of the housing and the inner sleeves respectively. By the adoption of the puncture depth control and needle hiding device, the technical difficulty of medicine liquid injection operation is simplified, the needle feeding depth is accurate, and the best effect of medicine liquid injection is ensured. In addition, a needle hiding structure reduces the risk of accidental stabbing, relieves anxiety and fear mentality of an operator and meets the demands for self-administration injection optimization of different populations.

Description

technical field [0001] The invention relates to the field of medical appliances, in particular to a device for controlling puncture depth and hidden needles and a method for using the device, which is suitable for self-administered medicament injection, such as insulin injection. Background technique [0002] Injection is a method often used in modern medical treatment. It is generally used when the drug is not suitable for oral administration, or when the drug effect needs to be achieved quickly according to the condition. It includes subcutaneous injection, intramuscular injection and other injection methods. Subcutaneous injection and intramuscular injection need to be injected at specific sites, and the depth of needle insertion has different requirements. [0003] For example, taking insulin injection therapy for blood sugar control as an example, insulin injection belongs to subcutaneous injection, and the preferred injection sites include limited sites on the abdomen,...

AI Technical Summary

Problems solved by technology

[0004] At present, due to the frequent injections of such diseases, the demand for self-administration injections by non-professional medical personnel in non-medical places is becoming more and more common, resulting in many risks such as injection dosage errors, deep punctures, false punctures, broken needles, etc.

At the same time, because the injection needle is exposed outside, the patient can see it intuitively and clearly, causing anxiety and fear, which is inconvenient to use

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