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Disposable membrane type automatic stopping and liquid residue preventing infusion set

A liquid-proof, disposable technology, applied in hypodermic injection devices and other directions, can solve problems such as liquid path pollution, and achieve the effect of preventing trouble and waste, facilitating liquid filling, and avoiding liquid path pollution.

Inactive Publication Date: 2014-10-29
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to solve the problem that the disposable membrane-type automatic liquid-stop precision filter infusion set will cause residual liquid in the drip funnel, membrane valve (abbreviated as membrane-type automatic liquid-stop valve) and the entire infusion tube cavity at the end of the day's infusion. problems; and can avoid the liquid path pollution that may be caused by the exposed air conduction method and the open exhaust method

Method used

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  • Disposable membrane type automatic stopping and liquid residue preventing infusion set
  • Disposable membrane type automatic stopping and liquid residue preventing infusion set
  • Disposable membrane type automatic stopping and liquid residue preventing infusion set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] like figure 1 As shown, the customary liquid inlet interface is composed of a side-hole bottle insertion needle 1, a dropper 2, and a purified air guide tube (conduit for balancing the internal and external pressure of the infusion bottle, commonly called an exhaust tube) equipped with an air purification component 3. It is also possible to directly set the side hole bottle inserting needle 1 to the top of the dropping funnel 4 together with the purified air duct to form the liquid inlet port. Even if an infusion bag is used for infusion, a purified airway tube should be inserted to reduce the amount of residual fluid in the infusion bag. The transfusion tube that is equipped with drip rate regulator 12 (being the customary wheel clip type drip rate regulator) is composed of conventional transfusion catheter 13 and short section elastic tube 15 (its function is: 1. when venipuncture is pinched and squeezed, it can bounce back and impel blood return To confirm whether ...

Embodiment 2

[0048] like figure 2 As shown, the customary liquid inlet interface 17 is provided with a bottle connector 19 equipped with a purified air guide port 18 (commonly known as an exhaust port) and a dropper equipped with a switch or a drip speed regulator 12 and marked with a scale. The burette 20 of 16 constitutes. Switch or drip speed regulator 12 is used for controlling liquid extraction volume. The drip funnel 22 that is equipped with micro-drop dripper 21 is used for children's infusion. Membrane valve is positioned at dropping funnel 22 below. The controllable liquid path repassing mechanism is set on the liquid outlet of the membrane valve liquid outlet pipe 27 (not shown separately) / the membrane valve housing and the liquid path above the membrane valve (referring to the dropping funnel 22 or the liquid inlet interface 17) and Equipped with a switch 24 (sliding buckle, which can also be a switch such as a chuck) that can be opened and closed by a nurse (referring to th...

Embodiment 3

[0050] like Figure 4 As shown, the customary liquid inlet interface is made of a bottle connector 38 and a dropper 40 (the L-shaped infusion conduit provided with a grafted drug addition interface). Membrane valve is positioned at dropping funnel 4 below. The end of the infusion tube is movably connected with a customary drip speed regulator 35 (the infusion extension tube provided with a gear-adjusting titration regulator, which is mostly used in intensive care units, operating rooms). The movable cap button joint 32 serves as a liquid outlet. As another kind of design of the present invention, a kind of imitation gallbladder formula rinse bottle dropper 42 can be set on the liquid inlet interface, and it is made up of liquid storage bag 43, bag pipe 41 and the switch 39 (hereinafter referred to as for short) that can open and close bag pipe for the switch). The liquid storage bag 43 is a liquid storage (container) made of medical flexible material and connected with the ...

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Abstract

The invention discloses a disposable membrane type automatic stopping and liquid residue preventing infusion set. The disposable membrane type automatic stopping and liquid residue preventing infusion set is composed of a liquid inlet connector, a container imitation type rinse bottle drip unit, a drip chamber, a membrane valve, a controllable liquid path reperfusion mechanism, an infusion tube, a dripping speed regulator, a liquid outlet connector and a turning pump arranged on the infusion tube. The disposable membrane type automatic stopping and liquid residue preventing infusion set has the advantages that firstly, liquid can be automatically stopped, and accordingly trouble, waste and possible occupation infection caused when an infusion needle is separated to discharge liquid and exhaust air to carry out liquid adding can be avoided; secondly, precious liquid residue in an infusion bottle and the infusion set can be drained downwards and injected into the human body, waste can be avoided, and the curative effect can be ensured; thirdly, internally generated bubbles in the infusion tube can be intercepted and collected, and the bubbles can be discharged upwards into a drip chamber cavity; fourthly, liquid path blocking and possible blood exposure accidents caused by blood returning and blood clotting can be avoided; fifthly, pressurizing can be carried out to fast carry out infusion to rescue a patient, and the operation accident that the air in the infusion tube is pumped into the human body mistakenly can be avoided. The disposable membrane type automatic stopping and liquid residue preventing infusion set is a multifunctional infusion set, and is used for clinic patients, especially for critical patients in midwinter to carry out long time dripping infusion of a large amount of infusion.

Description

technical field [0001] The invention relates to a disposable membrane-type automatic liquid-stopping infusion set for medical use, in particular to a disposable membrane-type automatic flow-stopping and liquid-residue-preventing infusion set. Background technique [0002] 1. The waste of liquid medicine in traditional infusion sets and its causes [0003] (1) Exhaust, drain and refill after the infusion tube enters the infusion process: the previous infusion bottle stopped dripping but was not discovered by the patient in time or when the nurse was busy and had no time to refill, the air would enter the Mufei Dropper [remark: the present invention is abbreviated as dropping funnel by it (such as: conventional straight pipe shape Murphy's dropper, the Mufei's dropper with grafting drug-feeding interface, conical Muphy's dropper, etc.). The bottle-inserting connector and the bottle-inserting needle (which includes side hole needles, beveled needles, and air guide tubes equipp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/38
Inventor 杨桂丽陈振业
Owner GUANGDONG UNIV OF TECH
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