Disposable pre-filled low-resistance catheter syringe

Abstract

The invention discloses a disposable prefilled low-resistance catheter syringe. The product belongs to the field of medical equipment. The main structure of the product is that a syringe medicine bag is arranged inside the disposable syringe, and the medicine liquid is planted in the production of the product. Into the syringe medicine bag, the syringe medicine bag is sealed when not in use, and punctured when in use, and the resistance is reduced by setting a vent hole on the piston. The advantages of the product are: small pushing resistance, good sealing, not easy to pollute, simple structure, It is easy to operate, and the silicone oil on the plunger of the syringe does not come into contact with the liquid medicine; at the same time, compared with the traditional method, the cumbersome step of dispensing heparin diluent is omitted, which effectively saves the time of medical staff and reduces the labor intensity of medical staff.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a disposable prefilled low-resistance catheter injector for flushing / sealing intravenous catheters, central vein catheters, and indwelling internal jugular vein catheters to prevent pipeline blockage. Background technique [0002] The venous indwelling needle is also called the venous trocar. The core components include a soft catheter / cannula that can be indwelled in the blood vessel, and a stainless steel puncture guide core. When used, the catheter and the needle core are punctured into the blood vessel together. After the catheter is fully inserted into the blood vessel, the needle core is withdrawn, and only the soft catheter is left in the blood vessel for infusion therapy, especially for patients who receive intermittent, continuous or daily intravenous infusion therapy. In view of the fact that ordinary indwelling needles cannot meet the special needs of patient...

AI Technical Summary

Problems solved by technology

However, the use of common syringes to fill heparin diluents for sealing / flushing tubes has the following disadvantages: For example, on-site mixing of heparin diluents and inhalation of syringes requires labor and time-consuming, and there are certain risks, which are reflected in grassroots medical institutions due to the personal quality of nurses Different, the accuracy and sterility of the blending concentration cannot be 100%; the above steps can be omitted by pre-filling the syringe with the blended heparin diluent. silicone oil

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