一种医用一次性输液三通旋塞
By incorporating a locking mechanism within the extension tube of a disposable medical infusion three-way stopcock, and utilizing the cooperation of a movable rod and an elastic plate, the problem of insecure connection between the flat-mouth syringe and the three-way stopcock is solved, achieving stable fixation of the syringe and reducing the risk of loosening and leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国人民解放军总医院京中医疗区
- Filing Date
- 2025-03-13
- Publication Date
- 2026-07-17
AI Technical Summary
In existing disposable medical infusion three-way stopcocks, the connection between the flat-mouth syringe and the three-way stopcock is not secure, which can easily lead to loosening and leakage, and may even cause the syringe to fall off.
A disposable medical infusion three-way stopcock including a three-way tube, a stopcock, and an extension tube was designed. By setting a locking mechanism in the extension tube, the syringe tip is fixed by the cooperation of the movable rod and the elastic plate, thereby improving the connection stability.
It effectively reduces the probability of loosening and detachment between the syringe tip and the extension tube, improves the firmness of the connection, avoids leakage, and enhances the stability of use.
Smart Images
Figure CN224506090U_ABST
Abstract
Claims
1. A disposable medical infusion three-way stopcock, comprising a three-way tube and a stopcock, wherein the stopcock is rotatably inserted into the upper opening of the three-way tube, the three-way tube has through holes on its front and left and right sides, and extension tubes are provided on the through holes on its front and left sides; the stopcock has a T-shaped tube corresponding to the positions of the three through holes of the three-way tube; the tip of a syringe is adapted to be inserted into the extension tube from the left opening of the extension tube, characterized in that: The extension tube is equipped with a locking mechanism for inserting into the tip of the syringe and securing the syringe.
2. The medical disposable infusion tee according to claim 1, wherein: The locking mechanism includes a movable rod and several elastic plates. The elastic plates are arranged in a circular pattern with equal spacing inside the extension tube. The right end of the elastic plate is fixed inside the extension tube. The movable rod has a hollow structure with openings at both the left and right ends. The movable rod is slidably positioned in the middle of the elastic plates. The left end of the movable rod abuts against the left end of the elastic plate, and when the movable rod moves to the right, it drives the elastic plate to bend outward.
3. The medical disposable infusion tee according to claim 2, wherein: The left end of the movable rod is a frustum shape with a diameter that gradually decreases from left to right, and the maximum diameter of the left end of the movable rod is smaller than the minimum inner diameter of the syringe tip.
4. The medical disposable infusion tee according to claim 2, wherein: The right end of the movable rod is provided with a ring with a diameter larger than the movable rod. The left side of the ring is fitted with an elastic ring in the shape of a circle. The left end of the elastic ring abuts against the right end of the extension tube, and the right side of the ring abuts against the stopcock. The opening of the pipe is coaxially provided with a recessed annular groove, and the ring is adapted to be inserted into the annular groove.
5. The medical disposable infusion tee according to claim 2, wherein: The inner surface of the elastic sheet is inclined, and the thickness of the elastic sheet gradually increases from right to left.
6. The medical disposable infusion tee according to claim 4, wherein: The diameter of the annular groove gradually increases from right to left.