Hard double connector

Abstract

The invention discloses a hard double connector, comprising a base provided with a mixing channel and a transfusion channel. The mixing channel is extended out of the base to form a mixing connector. A circular bump is protruded along the periphery of the mixing connector on the outer wall. The circular bump is provided with an external thread. A clasp is arranged on the outer wall of an end opening of the mixing connector which is provided with a membrane for sealing the mixing channel. The outer diameter of the clasp is not greater than that of the circular bump. When used, the base is welded on a transfusion soft bag, the mixing connected is inserted into the bottom of a syringe body and the clasp on the mixing connector is located on a positioning ring of the syringe body so that the syringe body is fixed on the mixing connector. During mixing, the syringe body is rotated downward so that the bottom of a dosing needle pierces through the membrane and a medicine container in a mixing nozzle is communicated with the transfusion soft bag. When the hard double connector is used, the hard double connector is unnecessary to connect by tubes and to use a handle easy to bend, thereby not only reducing the installation stations of the tubes, but also avoiding the leakage at the welding seam caused by tube welding deficiencies. Meanwhile, the hard double connector is integrally molded and has a wider scope of application.

Description

technical field [0001] The invention relates to a medical device, in particular to a hard double interface connected with an infusion container. Background technique [0002] In clinical treatment of diseases, patients are often given infusions or drugs are directly injected into the body through intravenous drip. The drugs are often stored in the infusion bag, and the injection or output of the drug solution in the infusion bag is often realized through a hard double interface. [0003] In the prior art, the hard double interface includes a base on which there is a drug mixing channel and an infusion channel, the drug mixing channel extends out of the base to form a cylindrical hollow drug mixing interface, and the infusion channel extends out of the base to form a cylinder The infusion interface of the hollow structure. [0004] The hard double interface of the above structure mainly has the following deficiencies in use: 1. When connecting with the drug mixing nozzle, it...

AI Technical Summary

Problems solved by technology

[0004] The hard double interface of the above structure mainly has the following deficiencies in use: 1. When connecting with the drug mixing nozzle, it needs to be connected through a hose, and one end of the hose is sleeved on the drug mixing interface and welded to the drug mixing interface. The other end of the hose is set on the syringe body on the mixing nozzle, and welded with the syringe body, which not only increases the installation station of the hose, but also increases the welding position, which increases the welding position due to the welding position in the mixing nozzle. The probability of liquid leakage during medicine; 2. The hard double interface is connected to the mixing nozzle through a hose. Due to the limitation of the material used in the hose, at low temperature (such as sub-zero temperature), it is easy to cause the welding part of the hose to crack, and then 3. For the hard double interface of the above structure, when connecting the mixing nozzle through a hose, an easy-to-break handle needs to be installed in the hose

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