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Exhaust limiting sheath

A sheath and vent technology, applied in the field of infusion sets, can solve the problems of affecting the infusion process, taking up a lot of time, and harming patients

Inactive Publication Date: 2011-05-04
SHANGHAI JINTA MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During use, when the liquid passes through the cork piercer and the catheter to the dropping funnel, there are air bubbles or spaces in the above-mentioned pipeline, resulting in unstable liquid flow or impact flow, and the liquid accumulated in the dropping funnel will still have bubbles. Or gas-liquid mixture, these bubbles and gas-liquid mixture will flow into the downcomer from the notch of the anti-bubble tube with the liquid. There is a void formed, and as the liquid continues to flow out, the void will be filled with liquid, and the gas in the void will form bubbles and enter the downcomer with the liquid. Since the above situation occurs relatively late, the nurse takes up a lot of time in the process, which affects the entire During the infusion process, the liquid medicine is also wasted. If no air bubbles are found, it will cause fatal injury to the patient.

Method used

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0021] The present invention comprises: a sheath 2 set on the intravenous infusion needle 1; a limited exhaust mechanism is connected to the sheath 2; between vent holes.

[0022] Depend on Figure 4 It can be seen that the limited exhaust mechanism is as follows: a solid sleeve 3 is connected to the bottom of the sheath 2; a notch 4 with an aperture of 5-50 wires is opened in the solid sleeve 3.

[0023] Depend on Figure 5 It can be seen that the limited exhaust mechanism is as follows: the exhaust hole 5 is at the bottom of the sheath 2 .

[0024] In this embodiment, although there are similarities with the structure of the prior art, since the hole diameter is 5-50 wires, the purpose of thoroughly preventing air bubbles can be achieved.

[0025] Depend on Figure 6 It can be seen that the limited exhaust mechanism is as follows: the exh...

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Abstract

The invention relates to an exhaust limiting sheath which comprises a sheath sleeved on a venous transfusion needle, an exhaust limiting mechanism connected with the sheath, bleed holes on the exhaust limiting mechanism with an aperture of 50 to 500 mu m. The present invention has the beneficial effect of thoroughly preventing bubbles.

Description

technical field [0001] The invention relates to an infusion set, in particular to a sheath structure placed on an intravenous infusion needle in the infusion set. Background technique [0002] The existing clinical infusion sets are all composed of cork puncturer, catheter, dripping funnel, flow regulator and intravenous infusion needle, etc. When the above-mentioned infusion set is used initially, it is necessary to invert the dripping funnel or pinch the catheter In order to get rid of the excess gas, a series of operations, such as the form of the method, will cause a large amount of liquid and gas to mix and enter the downcomer to form bubble liquid, which will affect the infusion process. If it is not found due to negligence, it may cause harm to the human body or even be fatal. The operation in the process of getting rid of these air bubbles is cumbersome, reduces labor efficiency, and wastes liquid medicine simultaneously. [0003] Chinese Patent No. 200720076629.X, ...

Claims

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Application Information

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IPC IPC(8): A61M5/14
Inventor 王长清王国福李知青晁小华朱国华毛春元
Owner SHANGHAI JINTA MEDICAL