Continuous slow-release drug delivery indwelling tube with puncture sheath and controller

Abstract

The invention provides a continuous sustained-release drug delivery indwelling tube with a puncture sheath and a controller, which comprises a drug injection tube, a sustained-release tube and the controller, one axial end of the sustained-release tube is closed, the other axial end of the sustained-release tube is communicated and connected with an outlet of the drug injection tube, an inlet of the drug injection tube is connected with a drug storage bag located in the controller, and the puncture sheath is connected with the controller. The controller is configured to be capable of adjusting the medicine storage bag to force out medicine liquid in the medicine storage bag at preset medicine injection pressure or medicine injection speed, and the medicine liquid enters the medicine injection tube and seeps to the outer side of the slow release tube through the tube wall of the slow release tube; the puncture outer sheath is formed by detachably combining a first outer sheath shell and a second outer sheath shell into a whole, the puncture outer sheath is provided with a hollow tube cavity, and the medicine injection tube penetrates through the hollow tube cavity; and / or, the slow release tube passes through the hollow tube cavity. According to the continuous slow-release administration indwelling tube with the puncture sheath and the controller, repeated puncture on a patient needing multiple times of administration is avoided, multi-point puncture on a patient with a wide administration range is not needed, the pain of the patient in the medical treatment process is reduced, and the medical experience of the patient is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a continuous slow-release drug indwelling tube with a puncture outer sheath and a controller. Background technique [0002] For many patients with sports injuries, it is often necessary to use local nerve closure to relieve pain and eliminate inflammation. For some patients with solid tumors, tumor injection can also be used to kill tumor cells. However, the existing technologies can only be administered in a single dose. For patients who need multiple doses, they have to repeatedly puncture, which undoubtedly increases the pain of the patient; It can be seen that the drug often gathers at the outlet and cannot diffuse to a far enough area. Therefore, for some patients who need to administer a wide range of drugs, they have to puncture at multiple points. (such as analgesia, chemotherapy, etc.), there is no good way to uniform local administration for a long ...

AI Technical Summary

Problems solved by technology

However, the existing technologies can only be administered in a single dose. For patients who need multiple doses, they have to repeatedly puncture, which undoubtedly increases the pain of the patient; It can be seen that the drug often gathers at the outlet and cannot diffuse to a far enough area. Therefore, for some patients who need to administer a wide range of drugs, they have to puncture at multiple points. (such as analgesia, chemotherapy, etc.), there is no good way to uniform local administration for a long time, based on which the present invention is proposed

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