A special infusion needle

Abstract

The invention discloses a special transfusion needle which comprises a steel needle, a steel needle fixing seat and a transfusion conduit connected with the rear end of the steel needle fixing seat. The special transfusion needle is characterized in that a protection mechanism is movably connected to the special transfusion needle; a protection sleeve which is arranged on the steel needle fixing seat or / and the transfusion conduit in a penetrating and sleeving mode and can contain a puncture connector or a fixing protection device which is arranged on the steel needle fixing seat and can rotate and stick to the surface of the puncture connector is adopted as the protection mechanism. The invention aims at providing the special transfusion needle which is simple and reasonable in structure, simple in technology and easy to manufacture. The special transfusion needle is provided with the protection sleeve which can prevent needle sticking injury and is movable and expansible and can be suitable for the puncture connectors with different specifications, be connected with different parts of the puncture end face of the puncture connector, be connected in a suspending mode and reduce nosocomial infection and damage of other substances entering human blood vessels, and the problem that a safe special transfusion needle does not exist for an existing clinical puncture connector is solved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a special infusion needle, which is specially used for infusion and blood transfusion with piercing connectors. Background technique [0002] After long-term clinical observation and multiple experiments, we found that in the current clinical infusion, there is no special device that can be actually mass-produced and practically used for infusion infusion devices connected with indwelling devices such as indwelling needles and central venous catheters. However, existing products and technical solutions are difficult to be practically applied and promoted due to structural or process problems, product production difficulties and operational performance defects. The defective of existing product and technology is: [0003] 1. After the existing infusion needle is docked with the puncture connector of the indwelling device, there is no protection or fixing device, and it cannot be co...

AI Technical Summary

Problems solved by technology

[0003] 1. After the existing infusion needle is docked with the puncture connector of the indwelling device, there is no protection or fixing device, and it cannot be connected in the air, and can only be fixed on the human limb

[0004] 2. After the existing infusion needle is docked with the puncture-type connector of the indwelling device, the tape cannot firmly fix the infusion needle seat and the puncture-type connector, so that the root of the infusion needle is easily subjected to breaking force, resulting in broken needles

[0005] 3. Tape fixation, one is that patients need to accept more tapes, and it may also increase the chance of allergies, and the other is that the operation is more troublesome

[0006] 4. The existing non-safe and safe infusion needles are unreliable, accidental needle stick injuries cannot be completely avoided during operation, and the special anti-acupuncture infusion set cannot be punctured in different parts

[0007] 5. For the intravenous infusion needles used in reality, since the single-wing or double-wing handle of the infusion needle is suspended in the air without a support part after being connected, the steel needle will be stressed after being fixed with tape, and the steel needle and tape at the fixing point will be stressed in both directions and may be broken. needle phenomenon

[0008] 6. The steel needle of the existing infusion needle is a long needle with a slanted opening, which is easy to break and the needle tip hits the side wall of the infusion set during the connection process, causing the needle tip to barb, thus causing damage to the puncture-type connector seal.

[0009] 7. The existing safety infusion needle cannot be connected with the piercing connector on the Y-shaped indwelling needle

[0010] 8. We found in the clinical investigation that the needle point of the existing infusion needle is a slanted needle, and its disadvantages when it is used for indwelling needles to connect infusions are: when puncturing the piercing connector, the puncture port is a line, and the needle tube is opened. The opening is located on the slope of the needle tip, so that various substances on the puncture line, including microorganisms, various particles, and various organic or inorganic substances, can be easily brought into the infusion set system, which may cause nosocomial infection and other hazards

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