Disposable exhaust-free liquid replenishing transfusion device

An infusion set and disposable technology, applied in the field of infusion sets, can solve problems such as inconvenience of refilling, and achieve the effects of simple structure, maintaining airtightness and low cost

Inactive Publication Date: 2011-11-16
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to solve the problem that air will enter the upper cavity of the infusion tube after the dropper of the existing infusion set is empty, which will cause inconvenience in continuing the liquid. The design principle of the present invention is to use the empty dropper of the existing infusion set Afterwards, the stagnation phenomenon in the lower cavity of the infusion tube is designed to provide a method that does not need to open the liquid outlet to discharge the stagnant liquid in the lower cavity of the infusion tube and the air in the upper cavity (referring to after the drip funnel is empty). An infusion set that can refill the liquid without entering the air in the infusion tube lumen

Method used

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  • Disposable exhaust-free liquid replenishing transfusion device
  • Disposable exhaust-free liquid replenishing transfusion device
  • Disposable exhaust-free liquid replenishing transfusion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 A first embodiment of the present invention is shown. Its liquid inlet interface 2 is made up of connecting bottle device 1 (side hole needle, is the prior art), dropper 3 and the pressure guide tube 4 that is equipped with air filter 5 (commonly called exhaust pipe, actually is air intake pipe, plays conduction And the function of balancing the pressure inside and outside the infusion bottle, so it is called the pressure guiding tube). Even if the infusion bag is used for drip infusion, the pressure guiding tube 4 should also be inserted to prevent waste of residual liquid generated (negative pressure) in the bag shoulder, bag neck and bag mouth of the infusion bag. The length of the tapered elongated dropping funnel 6 is based on the fact that there is a small amount of stagnant liquid 7 in the cavity after the liquid in the infusion bottle is dripped empty, so as to facilitate the operation of continuing the liquid; squeeze the conical elongated dropping f...

Embodiment 2

[0036] figure 2 A second embodiment of the present invention is shown. The bottle-connecting device 17, the dropper 14,20 and the burette 19 marked with the measurement scale mark 18 (both prior art, not drawn one by one because of the many styles) that bear the liquid inlet interface 16 are arranged on the straight tubular elongated type. The top of the dripping funnel 22 (the so-called "liquid inlet interface", which is relative to the lengthened dripping funnel); the switch or drip speed regulator 12 arranged on the dripping tube 14 is used to control the total amount of liquid sampling and infusion; Burette 19 is provided with hanger 15; Dripper (micro-drop dripper) 21 is to set up (for prior art) specially for children's infusion. According to tests, when the length is 50 centimeters, the diameter of the inner circle of the cross-section is 0.7 centimeters (the inner circle diameter of the cross-section of the empty barrel of the two-milliliter syringe is 1 centimeter) ...

Embodiment 3

[0039] image 3A third embodiment of the present invention is shown. The (two) bottle-connectors 31 and the "Y" shaped dropper 32 which act as the liquid inlet interface are sequentially connected and arranged on the top of the funnel-shaped corrugated type elongated dropper 33 . The purpose of setting the corrugation is: to facilitate coil packaging, and the pipe wall of the dropping funnel has no creases when it is opened for use, and is usually thicker (meaning that its thickness is close to that of the existing dropping funnel or as thick as the existing dripping funnel) The type dripping funnel may consider adding corrugations or adding corrugations intermittently. A liquid medicine filter 29 and a drip speed regulator 12 are provided on the infusion tube 34 provided with the three-way port 36 for grafting and adding medicine. A cap-and-button connector 35 (in the prior art) that serves as a liquid outlet interface is arranged at the end of the infusion tube 34 . The di...

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PUM

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Abstract

The invention discloses a disposable exhaust-free liquid replenishing transfusion device. In the transfusion device, aiming at the phenomenon of liquid retention on the lower section of a transfusion tube after a dropping funnel in the conventional transfusion device is empty, the bottom of the dropping funnel extends downwards, and the dropping funnel becomes a lengthened dropping funnel, so that a small amount of liquid is retained in a cavity of the lengthened dropping funnel after the previous liquid bottle is empty. The disposable exhaust-free liquid replenishing transfusion device is characterized in that: 1, after the previous liquid bottle is empty, the liquid is replenished directly, the lengthened dropping funnel is pinched, and a liquid surface in the cavity of the lengthened dropping funnel rises to maintain the pressure of a liquid column, so that the trouble, waste, interface contamination and possible incidents of blood exposure of patients which are caused because a liquid outlet interface is repeatedly opened to discharge liquid and air for replenishing liquid can be avoided, and a small amount of air also can be prevented from entering human bodies through a pintle of a transfusion needle due to the reconnection of the transfusion needle so as to avoid the frequent perambulation of nurses and professional infection caused by the contamination of haemorrhage dropping liquid on the interface on hands of the nurses; 2, a bottle cavity of valuable liquid can be washed, so that the valuable liquid can be dropped into the human bodies; and 3, the residual liquid can be prevented from generating in a transfusion bag. The disposable exhaust-free liquid replenishing transfusion device is used for continuous transfusion treatment in clinic.

Description

technical field [0001] The present invention relates to a medical disposable infusion device, in particular to a device that discharges stagnant liquid in the lower cavity of the infusion tube and air in the upper cavity without opening the liquid outlet port downwards and outwards after the previous infusion bottle is emptied. An infusion set capable of refilling (note: since there is no problem of air entering the lumen of the infusion tube after the infusion bottle is emptied, it is hereinafter referred to as a "disposable air-free refilling infusion set"). Background technique [0002] For a long time, in the preparation of clinical infusion and blood transfusion (referring to filling the infusion set and blood transfusion set for transfusion), one of the problems that has troubled nurses is: even if the nurse can operate carefully, it is still impossible to completely avoid the setting in the Murphy’s Dropper [annotation: the present invention will (contain the Mufei's ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/162
Inventor 陈振业杨桂丽陈磊
Owner GUANGDONG UNIV OF TECH
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