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Thrombus preventive indwelling needle not blocking needle tubing

A technology for preventing thrombosis and indwelling needles, applied in the field of medical devices, can solve the problems of preventing thrombosis, blockage and other problems that cannot be fundamentally solved, and achieves the effect of no requirement for operating experience, obvious thrombosis prevention, and pain reduction.

Pending Publication Date: 2018-12-14
江苏优鼎医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the indwelling needle with this structure, the front end of the indwelling tube is still open and placed inside the blood vessel. Because of the pressure of the blood, the blood will still flow back under this continuous pressure state, and the indwelling tube is made of soft material. Made of high-quality materials, it will shrink and expand. When the blood flows back into the indwelling tube, it will solidify and form a thrombus, causing the tube to be blocked, which cannot fundamentally solve the problem of anti-thrombosis

Method used

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  • Thrombus preventive indwelling needle not blocking needle tubing
  • Thrombus preventive indwelling needle not blocking needle tubing
  • Thrombus preventive indwelling needle not blocking needle tubing

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Embodiment 2

[0040] Except following difference, all the other are with embodiment one:

[0041] Such as Figure 8 As shown, the traction assembly 5 is connected to the infusion conduit 8 and close to the liquid medicine input port 9 through the Y-shaped three-way connection seat 7 , and the infusion conduit 8 is connected to the liquid medicine input port 9 .

[0042] Between the bottom of the upper cover 5.2 and the top of the winding reel 5.3, and between the bottom of the winding reel 5.3 and the inner bottom of the bottom cover 5.4, an interference fit is used for upper and lower sealing. Prevent backflow of infusion fluid.

[0043] Implementation three

[0044] Except following difference, all the other are with embodiment one:

[0045] Such as Figure 9 As shown, the traction assembly 5 is directly connected to the liquid medicine input port 11 through the Y-shaped three-way connection seat 7 .

[0046] The present invention can also design an optical probe at the front end of ...

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Abstract

The invention discloses a thrombus preventive indwelling needle not blocking a needle tubing. The indwelling needle comprises a three way needle stand, an indwelling hose arranged in the front end ofthe three way needle stand and a puncture needle penetrating into the indwelling hose from the three way needle stand; a plugging structure is arranged in the three way needle stand; after once transfusion, the plugging structure penetrates into the front end of the indwelling hose to plug a front opening of the indwelling hose; and in the transfusion process, the plugging structure is withdrawn into the three way needle stand behind the indwelling hose to not influence the flow velocity of transfusion. Compared with a present positive pressure joint type or counter current preventive product,the indwelling needle prevents blood backflow in an accurate position, a blood clotting phenomenon is avoided, the thrombus preventive effect is good, and the indwelling needle has significant influence on clinical operation, and guarantees the physical health more effectively.

Description

technical field [0001] The invention relates to an antithrombotic non-blocking indwelling needle for transfusion, which belongs to the field of medical equipment. Background technique [0002] As a substitute for scalp needles, venous indwelling needles have the advantages of simple operation, softness, long indwelling time in veins, and not easy to puncture blood vessels, which reduces the pain of repeated punctures for patients and the workload of nursing staff. The existing indwelling needle generally needs to seal the tube when the infusion is suspended, and flush the tube every 6-8 hours to prevent blood backflow. [0003] However, when sealing the tube, it is difficult to control the speed during the needle withdrawal process due to the sealing method, such as the high density of the heparin cap, and the slow withdrawal of the needle will still cause blood backflow, or when the constant speed injection is performed at the end. , the nursing staff’s hands are uncoordin...

Claims

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Application Information

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IPC IPC(8): A61M5/158
CPCA61M5/158A61M2005/1588
Inventor 闫红魁
Owner 江苏优鼎医疗科技有限公司
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