A safety infusion set with improved exhaust of dropping funnel

An infusion set and safe technology, applied in the field of medical devices, can solve the problems of bubbles escaping the upper end of the drip bucket, waste of drugs, pollution, etc., to reduce the risk of employment, the effect is certain and inevitable, and the effect of improving the safety of infusion

Inactive Publication Date: 2011-12-21
广东先来医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the technical solution proposed by Chinese patent application 201010290116.5 still has defects
This technical solution still adopts the same structure as the traditional infusion set when applying the air separation performance of the liquid medicine filter medium, that is, the liquid medicine filter medium is simply installed at the bottom of the dripping funnel or connected by a bracket to the liquid medicine filter medium and installed at the bottom of the dripping funnel , ignoring the principle that since the liquid medicine filter medium can block the air from entering the downcomer, it can also block the air from escaping upwards in reverse, so that when the infusion set is exhausted, the air bubbles hidden between the liquid medicine filter medium and the dripping funnel cannot be as traditional infusion The device escapes above the upper end of the dripping funnel like that, so that when the exhaust of the infusion set is about to end, the acceleration of gravity will cause the liquid to pull down the built-in air bubbles into the catheter, and the distance from the dropping funnel to the end of the infusion set generally exceeds 100cm, and the consequence is that it must continue Drain the liquid medicine in the catheter more than 100cm to discharge air bubbles, causing great trouble, waste and drug pollution

Method used

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  • A safety infusion set with improved exhaust of dropping funnel
  • A safety infusion set with improved exhaust of dropping funnel
  • A safety infusion set with improved exhaust of dropping funnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 It is a schematic diagram of a typical structure in which the liquid medicine filter medium 21 is directly sealed at the bottom of the dropping funnel 2 in the present invention. Such as figure 1 As shown, the infusion set includes a cork piercer 1, an air inlet 13, a drip funnel 2, a liquid medicine filter medium 21, an exhaust pipe 14, a pipeline 3 and a regulator 4, and the bubble point pressure of the liquid medicine filter medium 21 is Greater than 7.85kPa and less than 25.00kPa, the liquid medicine filter medium 21 is directly sealed and installed on the bottom of the dripping funnel 2 of the infusion set, and made to closely fit with the edge of the bottom of the dripping funnel 2. 21 connected to the bottom of the dropping funnel 2 or the bracket 25 connected to the liquid medicine filter medium, which is independently or cooperatively constructed with the bottom of the dropping funnel 2—there is a gas-liquid flow channel 254 that must flow out from bo...

Embodiment 2

[0035] figure 2 It is a structural schematic diagram of fixing and installing the liquid medicine filter medium 21 on the bottom of the dropping funnel 2 by the bracket 25 in the present invention. Such as figure 2 , because the difference between the present embodiment and embodiment 1 is that the types of the dropping funnel 2 and the gas-liquid flow channel 254 are different, therefore figure 2 The illustration of its common parts is not given, the liquid medicine filter medium 21 of the infusion set of the present embodiment is fixedly installed on the bottom of the dripping funnel 2 of the infusion set by the bracket 25, and makes it closely fit with the edge of the bottom of the dripping funnel 2 , the support 25 that links to each other with the liquid medicine filter medium, its independent structure one has the gas-liquid flow channel 254 that must flow out again from bottom to top when making liquid advance through it. Described support 25 has a support connecti...

Embodiment 3

[0039] Such as image 3 As shown in ~, it is another implementation type of the present invention to fix and install the liquid medicine filter medium 21 on the bottom of the dripping funnel 2 by the bracket 25 to exhaust the dripping funnel 2. As shown in the figure, the performance equivalent to that of embodiment 2 can be realized by adopting the configuration as shown in the figure.

[0040] Such as image 3 , 4 As shown in and 5, the difference between it and Embodiment 2 is that the gas-liquid flow channel 254 that can exclude air is jointly constructed by the bracket 25 of this embodiment and the bottom of the dropping funnel 2, and it is characterized in that the bracket 25 is installed in the dropping funnel 2. The bottom is composed of a cover-shaped housing 258 with one vertical opening and a housing through pipe 259 arranged outside the cover-shaped housing 258. The liquid medicine filter medium 21 is vertically installed on the opening of the cover-shaped housin...

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Abstract

The invention relates to the technical field of medical devices, in particular to a safety infusion set with improved exhaust from a dropping funnel. The technical scheme of the present invention is based on the principle of gravity and the specific gravity of the liquid is greater than the specific gravity of the air. At the bottom of the dripping funnel or using the supporting bracket of the liquid medicine filter medium, a gas-liquid gas-liquid system is constructed to allow the liquid entering the dripping funnel to travel from bottom to top. Flow channel, so as to improve and overcome the defect that the liquid medicine filter medium with a certain bubble point value that can block the passage of air cannot discharge the air hidden in the gap at the bottom of the dropping funnel during application, so that the safety infusion set that claims to separate the air with the bubble point performance Realize the safety performance in the true sense.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a safety infusion set with improved exhaust from a drip funnel. Background technique [0002] The existing infusion sets have deficiencies and risks in preventing air from entering blood vessels and causing medical accidents. Aiming at these problems, Chinese patent application 200810148958.X proposes a technical solution for dealing with them. Its theme and instructions clearly propose the use of an "anti-bleed filter" that "can achieve the effects of no air bubbles and anti-bleed" (see No. 2 of the description of its invention patent application) Paragraph 1 on page 1), but the performance description that claims to be "safe and bubble-free components" that "can prevent blood backflow at the end of the infusion" (see paragraphs 0006, 0007 and 0008 of the specification of its invention patent application) does not clearly disclose that it can prevent The principle of bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/14A61M5/36
Inventor 李林风陈志强王铮
Owner 广东先来医疗器械有限公司
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