Fool-proof closed connector

Abstract

The invention discloses a fool-proof closed type joint. The fool-proof closed type joint comprises a first connector and a second connector, wherein the first connector comprises a first end part and a second end part, the first end part forms a groove and first ratchets, a sliding rail is annularly arranged on the inner side wall of the groove, and the second end part is connected with a first assembly; the second connector comprises a first end part, a second end part and a large diameter segment, the first end part forms second ratchets and is arranged in the groove, the first ratchets are selectively meshed with the second ratchets so that the first connector drives the second connector to rotate unidirectionally towards the first direction, and the second end part of the second connector is screwed to a second assembly; a sliding chute is annularly arranged in the large diameter segment, the first connector rotates towards the first direction or the second connector rotates towards the direction opposite to the first direction, so that the second ratchets are broken by the first ratchets, and the second connector rotates at 360 degrees relative to the first connector by virtue of the sliding rail and the sliding chute.

Description

technical field [0001] The present invention relates to a closed joint for medical or laboratory instruments. Background technique [0002] Luer connector (Luer taper) is a standardized micro-permeable connector, including a male connector and a female connector. The male and female connectors are assembled to each other by screwing, so they can be tightened and loosened by bidirectional rotation. Luer connectors are widely used in medical and laboratory instruments. In medicine, syringes, drip bottles, infusion machines and medicine bags are all connected to infusion tubes through Luer connectors to deliver medicines to patients. [0003] However, since the male and female connectors can be unscrewed through the threads where the two meet, it is easy for the user to accidentally unscrew the two slightly during use and cause the medicine to connect from the male and female connectors. The problem of leakage in the gap at the place causes the waste of medicine. What's more...

AI Technical Summary

Problems solved by technology

[0003] However, since the male and female connectors can be unscrewed through the threads where the two meet, it is easy for the user to accidentally unscrew the two slightly during use and cause the medicine to connect from the male and female connectors. The problem of leakage in the gap at the place, resulting in the waste of medicine

What's more, some drugs are toxic, which will endanger the nursing staff, family members and other patients, and cause environmental pollution.

In addition, the leakage of the medicine will also cause the shortage of the medicine injected into the patient's body, which will reduce the therapeutic effect of the medicine on the patient, and even endanger the life of the patient.

[0004] Furthermore, in some places where there is insufficient space, the pipeline connected to the female connector will be twisted, which will affect the smoothness of drug delivery

Often the female connector must be unscrewed from the male connector, and the twisted line must then be straightened, a cumbersome operation and the risk of chemical leakage

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