CN104127940B

CN104127940B - A kind of connect negative pressure conduction device certainly end dropping funnel

Info

Publication number: CN104127940B
Application number: CN201310156537.2A
Authority: CN
Inventors: 朱盛楠
Original assignee: ZHENGZHOU HAONENG TECHNOLOGY Co Ltd
Current assignee: ZHENGZHOU HAONENG TECHNOLOGY Co Ltd
Priority date: 2013-05-02
Filing date: 2013-05-02
Publication date: 2016-12-28
Anticipated expiration: 2033-05-02
Also published as: CN104127940A

Abstract

The invention provides that a kind of band can connect negative pressure conduction device ends dropping funnel certainly, improve existing from the stop valve ending transfusion device, the structures such as cut-off diaphragm, make certainly to end the cut-off of transfusion device and through-flow from relying on the change of medicinal liquid gravity by the elastic potential balancing gravity of cut-off diaphragm, ensure that from cut-off transfusion device on existing material foundation, cut-off and negative pressure conduction can be better achieved, more existing stopper, cut-off and conducting effect are more reliable, manufacturability is strong, for realizing preferably realizing from ending alarm, infusion management more specification is made to provide superior technique support.

Description

A kind of connect negative pressure conduction device certainly end dropping funnel

Technical field

The present invention relates to a kind of connect negative pressure conduction device certainly end dropping funnel, particularly a kind of disposable Intravenous transfusion device uses, and automatic cut-off when declining in infusion unit titrimeter inner liquid medicine face prevents liquid level excessive descent Causing air embolism, the transfusion complication such as blood back also transfers out automatic to outer welding system offer signal of negative pressure simultaneously Cut-off dropping funnel.

Background technology

Owing to venous transfusion plays particularly important effect, a lot of medical apparatus and instruments in the treatment of various diseases Enterprise and individual constantly have various innovation in the improvement of transfusion device, and some of them use certainly cutting of negative pressure alarm Only transfusion device is limited by material technology due to its structure and design, is extremely difficult to ideal effect, so that defeated Certainly the cut-off of liquid device and alarm effect are the most reliable, safer, invent and improve the novel negative pressure that is applicable to and accuse Alert is extremely necessary from cut-off transfusion device.

Summary of the invention

The invention provides a kind of certainly end dropping funnel, particularly one connecting negative pressure conduction device to utilize Membrane flexive potential energy is the medicinal liquid liquid stream in cut-off transfusion device when transfusion closes to an end, it is to avoid blood back, wrong defeated air Certainly dropping funnel is ended, it is characterised in that novel connect negative pressure conduction dress etc. what problem novel connected negative pressure conduction That puts is made up of dropping funnel epimere 1-1, dropping funnel stage casing 1-2, dropping funnel hypomere 1-3 from cut-off dropping funnel 1, dropping funnel hypomere 1-3 is mainly made up of stop valve 1-3-1, cut-off diaphragm 1-3-2, and the primary structure of stop valve 1-3-1 includes: Liquid drain hole 1-3-1-1, mozzle 1-3-1-2, diaphragm fixed station 1-3-1-3, cut-off diaphragm 1-3-2 is cut by diaphragm Only face 1-3-2-1, diaphragm annular edge 1-3-2-2 composition, wherein, mozzle 1-3-1-2 is slightly above in the design Diaphragm fixed station 1-3-1-3 about 1mm, can make diaphragm annular edge 1-3-2-2 ending diaphragm 1-3-2 be arranged on Time on diaphragm fixed station 1-3-1-3, diaphragm stop surface 1-3-2-1 of cut-off diaphragm 1-3-2 is by chance close to stop valve The mozzle 1-3-1-2 mouth of pipe of 1-3-1, the liquid drain hole 1-3-1-1 of stop valve 1-3-1 can be cross or circle, Diaphragm stop surface 1-3-2-1 of cut-off diaphragm 1-3-2 is connected to the center of diaphragm annular edge 1-3-2-2 and presents Symmetrical structure, or to be connected to diaphragm annular edge 1-3-2-2 side be drum face structure.

Beneficial effect

The invention provides that a kind of band can connect negative pressure conduction device ends dropping funnel certainly, the elastic potential of its profit diaphragm Energy and gravity principle, improve the existing structure from cut-off transfusion device not enough, make from ending transfusion device existing On material foundation, it is possible to cut-off and negative pressure conduction are better achieved, have stopped because of existing from ending infusion techn The serious consequence that fault rate height under material limits is likely to result in, compared to existing stopper, has cut-off And conducting effect is more reliable, the features such as manufacturability is strong, for realizing preferably realizing, from ending alarm, making transfusion Manage more specification, nurse and the most intimate provide superior technique support.

Accompanying drawing explanation

Fig. 1 can connect the cut-off dropping funnel sectional view certainly of negative pressure conduction device

Fig. 2 can connect the cut-off dropping funnel sectional view certainly of negative pressure conduction device

Fig. 3 I type cut-off diaphragm profile

Fig. 4 I type cut-off diaphragm side view

Fig. 5 II type cut-off diaphragm profile

Fig. 6 II type cut-off diaphragm side elevation view

Fig. 7 II type cut-off diaphragm underside view

Fig. 8 cross bore stop valve side view

Fig. 9 circular hole stop valve side view

1 can connect negative pressure conduction device certainly end dropping funnel

1-1 stopper

1-1 dropping funnel epimere

1-2 dropping funnel stage casing

1-3 dropping funnel hypomere

1-3-1 stop valve

1-3-1-1 liquid drain hole

1-3-1-2 mozzle

1-3-1-3 diaphragm fixed station

1-3-2 ends diaphragm

1-3-2-1 diaphragm stop surface

1-3-2-2 diaphragm annular edge

2 negative pressure conduction devices.

Specific embodiment

When transfusion starts, the amount of liquid medicine above cut-off dropping funnel 1 that can connect negative pressure conduction device is many, Producing bigger gravitional force, medicinal liquid passes through the 1-3-1-1 liquid drain hole on the stop valve 1-3-1 of dropping funnel hypomere 1-3, Owing to the gravitional force of medicinal liquid is more than the elastic potential energy needed for cut-off diaphragm 1-3-2 deformation, make cut-off diaphragm 1-3-2 Deform upon, so that forming space between cut-off diaphragm 1-3-2 and the mozzle 1-3-1-2 of flow-stop valve 1-3-1, Ensure that medicinal liquid continues to dropping funnel flowing underneath, get final product normal infusion；When transfusion closes to an end, negative pressure can be connected The amount of liquid medicine above cut-off dropping funnel 1 of conduction device reduces, and gravitional force produced by medicinal liquid is less than cut-off diaphragm 1-3-2 deforms upon required elastic potential energy, and cut-off diaphragm 1-3-2 does not deforms upon, and flow-stop valve 1-3-1 leads Flow tube 1-3-1-2 is cut off diaphragm 1-3-2 and seals, and makes medicinal liquid can not continue flowing, and transfusion is i.e. cut off.

The cut-off diaphragm 1-3-2 from cut-off dropping funnel 1 of negative pressure conduction device can be connected, for ensureing transfusion and cut-off Effect, it, it is necessary to have the most elastic and suppleness, needs to select more soft in the fabrication process, and toughness is relatively Good medical elastic material；The mozzle 1-3-1-2 mouth of pipe of flow-stop valve 1-3-1 need to carry out the polishing of superprecision and throw The cut-off of light guarantee is respond well.

Claims

1. one kind can connect negative pressure conduction device certainly end dropping funnel (1), it is characterized in that connecting negative pressure conduction device It is made up of dropping funnel epimere (1-1), dropping funnel stage casing (1-2), dropping funnel hypomere (1-3) from cut-off dropping funnel (1), Dropping funnel hypomere (1-3) is mainly made up of stop valve (1-3-1), cut-off diaphragm (1-3-2), stop valve (1-3-1) Primary structure include: liquid drain hole (1-3-1-1), mozzle (1-3-1-2), diaphragm fixed station (1-3-1-3), Cut-off diaphragm (1-3-2) is made up of diaphragm stop surface (1-3-2-1), diaphragm annular edge (1-3-2-2), wherein, Mozzle (1-3-1-2) is slightly above diaphragm fixed station (1-3-1-3) about 1mm in the design, can make cut-off When the diaphragm annular edge (1-3-2-2) of diaphragm (1-3-2) is arranged on diaphragm fixed station (1-3-1-3), cut Only the diaphragm stop surface (1-3-2-1) of diaphragm (1-3-2) is by chance close to the mozzle (1-3-1-2) of stop valve (1-3-1) The mouth of pipe, the liquid drain hole (1-3-1-1) of stop valve (1-3-1) is cross or circle, cut-off diaphragm (1-3-2) Diaphragm stop surface (1-3-2-1) be connected to the center of diaphragm annular edge (1-3-2-2) and present symmetrical structure, Or being connected to diaphragm annular edge (1-3-2-2) side is drum face structure.