Cervical dilatation balloon catheter capable of facilitating liquid feeding

Abstract

The invention relates to a cervical dilatation balloon catheter capable of facilitating liquid feeding, aiming at effectively solving the problems that a patient feels uncomfortable and liquid injection is inconvenient to perform during cervical dilatation at present. The cervical dilatation balloon catheter is characterized in that the cervical dilatation balloon catheter comprises a catheter, and a first balloon, a second balloon and a third balloon are arranged on the catheter; the catheter is internally provided with a rotating shaft and a baffle plate; the baffle plate divides the catheter into two chambers which are respectively positioned at the upper part and the lower part and are not communicated with each other; a first piston is screwed at the upper end of the rotating shaft, and a second piston is screwed at the lower end of the rotating shaft; the second piston is connected with the first piston by means of a resilient pull rope; the left side tube wall interlayer of thecatheter is internally provided with a first water injection pipe which is communicated with the lower end chamber and the second balloon; the right side tube wall interlayer of the catheter is internally provided with a second water injection pipe which is communicated with the first balloon, the upper end chamber and the third balloon; a piston cylinder communicated with the first water injection pipe and the second water injection pipe is arranged at the right side of the catheter; the piston cylinder is internally provided with a third piston which is internally provided with a Y-shaped channel; a first compression spring, the upper end of which can move upwards, is arranged above the third piston.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a cervical dilatation balloon catheter which is convenient for liquid feeding. Background technique [0002] Cervical dilatation balloon catheters are suitable for mechanical dilation of the cervix with poor maturity before labor induction. Cervical dilation balloon catheters usually need to be placed in the human body for a period of time. Gradually open to achieve the effect of induction of labor. The existing cervical dilatation balloon catheters all use one-time injection to prop up the balloon. This method directly opens the patient's cervix mechanically. Although the expansion speed is fast, However, this kind of rigid expansion method will bring great discomfort to the patient. At the same time, when the balloon catheter is filled with liquid, it is necessary to inject liquid into the balloon through a large-capacity syringe. The water pipe is blocked. In this process, ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a cervical dilatation balloon catheter that is convenient for liquid injection, which effectively solves the problem that the existing cervical dilation will cause discomfort to the patient and inconvenient liquid injection

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