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Infusion apparatus capable of preventing blood returning

An anti-return infusion device and infusion tube technology, which is applied in the field of disposable anti-return infusion devices, can solve problems such as doctor-patient conflicts, and achieve the effect of avoiding return of blood

Inactive Publication Date: 2009-11-18
戎静华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If blood meets air, thrombus will occur, which will lead to some adverse consequences, and easily cause conflicts between doctors and patients

Method used

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  • Infusion apparatus capable of preventing blood returning
  • Infusion apparatus capable of preventing blood returning
  • Infusion apparatus capable of preventing blood returning

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Embodiment Construction

[0026] Such as figure 1 The anti-blood infusion set: the bottle stopper puncturer 1 is connected to the infusion tube 2, the infusion tube 2 is connected to the Murphy's tube 3, and the upper part of the Murphy's tube 3 is connected to the infusion tube at the upper end by a central part. 3d is connected to the annular cylinder 3a closed by the thinner annular cylinder 3c. The lower part has a round platform ring body 3b, wherein the lower part of the Murphy's tube 3 is made of a special hard plastic for single-use "injection and infusion" medical devices that meet the pharmacopoeia standards, and the upper part of the Murphy's tube is made of a disposable plastic that meets the pharmacopoeia standards. It is specially made of "injection and infusion" medical devices, and when it is forced to be deformed by a hard object for a long time, when the hard object that squeezes it is removed, it can be made of high elastic soft plastic that can immediately restore its original shape...

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Abstract

The invention discloses an infusion apparatus capable of preventing blood returning, which comprises a bottle cork puncture outfit, a perfusion tube, a Murphy tube with the lower part made of hard plastic, a floating plug which is arranged inside the Murphy tube, is provided with an inverted round platform ring body and an circular ring column at the body, has a sealing part made of sealing soft plastic and a sealed outer surface, a flow regulator, an outside cone joint, a small perfusion tube and an intravenous injection needle. The infusion apparatus has the function that transfusion can be automatically stopped when transfusion is finished, therefore, the blood returning is avoided; the sinking and floating of the floating plug can be automatically realized; the floating plug can be floated quickly, and transfusion is not stopped under top-speed transfusion; the floating plug and the lower part of the Murphy tube are made of materials with different expansion factors, and can overcome the potential safety hazard of the sealing failure of the floating plug caused by different dimension change of the floating plug and the Murphy tube due to temperature variation; and the potential safety hazard of the sealing failure of the floating plug due to stranding caused by different reasons during the falling process can be overcome by the design of the shape and the dimension of the floating plug.

Description

【Technical field】 [0001] The patent of the present invention relates to a one-time use infusion set, and is especially suitable for a one-time use anti-blood infusion set. 【Background technique】 [0002] Present common infusion set, it is made up of bottle stopper puncturer, infusion tube, Murphy's tube, flow regulator, outer cone joint, small infusion tube, and intravenous injection needle. Because it does not have an anti-bleeding device, if the medicine is not properly taken care of after the medicine is dripped out, air will enter the infusion tube below the Murphy's tube, causing blood to return. If blood meets air, thrombus will occur, which will lead to some adverse consequences, and easily cause conflicts between doctors and patients. 【Content of invention】 [0003] In order to overcome the above-mentioned shortcomings of current common infusion sets, the patent of the present invention proposes a new anti-blood infusion set. It is equipped with a floating plug d...

Claims

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Application Information

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IPC IPC(8): A61M5/40
Inventor 戎静华
Owner 戎静华
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