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Needle withdrawing prevention vein remaining needle

A venous indwelling needle, needle-type technology, applied in the field of indwelling needles, can solve problems such as vascular injury

Inactive Publication Date: 2016-01-27
四川普瑞斯生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Such subtle changes are not easy to be found, and once the puncture is performed, not only cannot the puncture into the blood vessel be smoothly, but also cause great damage to the blood vessel

Method used

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  • Needle withdrawing prevention vein remaining needle
  • Needle withdrawing prevention vein remaining needle
  • Needle withdrawing prevention vein remaining needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Before use, the nurse engages the base 2 and the needle handle 6 by hand, and the base 2 and the needle handle 6 rotate relatively. During the rotation, the protrusion 7 on the base 2 enters the groove 8, and the groove 8 The axial displacement of the base 2 and the soft sleeve 3 is limited, and the relative position of the soft sleeve 3 and the puncture needle 1 is maintained, so that the base 2 and the hose sleeve 3 will not slip forward, and the The exposed state of the needle tip ensures the smooth progress of the puncture task.

[0028] After the puncture is completed, follow the normal procedure for subsequent procedures.

[0029] The groove 8 is set as a chute, in order to allow the bump 7 to enter the groove 8 smoothly, and with the rotation process, the base 2 and the hose cover 3 have a backward thrust to further ensure that the front end of the soft sleeve 3 sufficient distance from the needle tip.

Embodiment 2

[0031] The rib 9 is set on the needle handle 6. During use, the base 2 and the needle handle 6 rotate relative to each other, so that the upper end surface of the protrusion 7 is constrained by the lower end surface of the rib 9, which can also play a position-limiting role. For the aforementioned reasons, the ribs 9 can also be provided as beveled ribs.

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Abstract

The invention relates to a vein remaining needle. The needle withdrawing prevention vein remaining needle comprises a puncture assembly and a puncture needle, wherein the puncture assembly comprises a foundation, the front end of the foundation is provided with a soft sleeve, the foundation side is provided with an infusion tube seat, and the back of the puncture needle is provided with a needle handle. The needle withdrawing prevention vein remaining needle is characterized in that, the foundation is externally provided with a convex block, the needle handle is provided with a limit device, and the convex block after rotation can be limited by the limit device. The vein remaining needle is advantaged in that, during use, in a rotation process of the needle handle, the convex block enters a groove or a convex fin on the needle handle, relative positions of the soft sleeve and the puncture needle are maintained, so the soft sleeve does not generate forward sliding, even fine sliding before puncture can be corrected, an exposure state of a needle point is constantly maintained, and thereby the puncture task is guaranteed to be carried out smoothly.

Description

technical field [0001] The invention relates to an indwelling needle for transfusion. Background technique [0002] Intravenous infusion is the most common medical treatment method, and its basic principle is to inject liquid into the veins of the human body through infusion lines and hollow needles. To start the infusion, a hollow needle needs to be inserted into the vein. [0003] Since the infusion process has to be repeated many times, the puncture process needs to be repeated each time. In order to reduce the pain of the patient and the work intensity of the medical staff, the indwelling needle technology appears: using a soft cannula with a removable steel needle inside the cannula , when puncturing a blood vessel for the first time, use a steel needle to complete the puncture task, and at the same time bring the soft sleeve into the blood vessel, pull out the steel needle and discard it (the hole after extraction is sealed by the elasticity of the elastic material), ...

Claims

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Application Information

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IPC IPC(8): A61M5/158
Inventor 雷冰
Owner 四川普瑞斯生物科技有限公司
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