CN1238068C

CN1238068C - Improvement for intravenous drip syringe controller

Info

Publication number: CN1238068C
Application number: CN 00109887
Authority: CN
Inventors: 汪贤宗; 郑万章
Original assignee: Hongfu Science & Technology Co Ltd
Current assignee: Shanghai Jinta Medical Apparatus Co Ltd
Priority date: 2000-07-11
Filing date: 2000-07-11
Publication date: 2006-01-25
Anticipated expiration: 2020-07-11
Also published as: CN1333061A

Abstract

The present invention relates to an improvement for an intravenous dropping syringe controller, which is a controller formed in that a floating container of which the bottom presents a spherical surface film shape is arranged in a dropping liquid cup. When dropping liquid in the dropping storing cup reaches more than one half of a whole, the container can float at the interface of the liquid so as to output the dropping liquid for injection. When the dropping liquid is about to be exhausted, the film spherical surface bottom is adsorbed fast to be tightly attached to the opening of the drip storing cup so as to block the dropping liquid and air and prevent blood which is injected from returning to the dropping storing cup because of the negative pressure of blood vessels. Because the bottom of the container has the spherical surface film characteristic and the flexibility, the efficiency of stopping and dropping can not be influenced regardless of the swing or the inclination of the controller.

Description

The improvement of droving injector controller

[technical field]

The present invention relates to a kind of improvement of droving injector controller, outstanding reference and a kind of dropping syringe that is applicable to can effectively intercept dropping liquid and air, and prevent that the control device that blood refluxes from improving; And no matter this control device rocks or whether tilts, and neither causing is affected, and can guarantee to end an effect.

[background technology]

In the injection process of dropping syringe, syringe need install the injection flow of control device with the control syringe additional, just injects dropping liquid and can stablize output, bestows injection via syringe needle again; When injection is about to injection and will finish, inject human body for preventing air, control device must close apolipsis immediately and drip, and syringe needle needs be removed from the human injection place, to guarantee injection safety; Generally speaking, control device itself only has flow-control effect and end to have automatic detent plug effect, so aforementioned operation is at control device automatically under the behaviour in service of detent plug, be manually to finish with manual type by healthcare givers or nurse, because the general injection time is to determine according to the drippage flow of injecting dropping liquid, difficulty is learnt that by the range estimation judgement therefore, medical personnel have only the summary time of reckoning, and must make an inspection tour the injection situation again and again, in medical resource very limited today, the burden of beyond doubt more manpowers, it is more huge especially to suffer from influence for the severe disease of chronicity, and it is as careless slightly, severe disease suffer from can't in help, safe danger is probably arranged, have much room for improvement in fact.

For this reason, the droving injector controller of commonly using for solving an above-mentioned difficult problem that faces, has a kind of control device that adds the cup-shaped buoyancy aid, to improve the shortcoming of commonly using that control device does not have automatic detent plug effect; As shown in Figure 1, this located by prior art (one), be in tubular accumulator tank 1, install the cup-shaped buoyancy aid 2 that a bottom has hitching post 2a, to constitute a kind of self-braking control device that has, when this cup-shaped buoyancy aid 2 uses at the dropping syringe end, because of the injection outlet b sealing of gravity with accumulator tank 1 below; When injection imports and when being full of accumulator tank 1, then this cup-shaped buoyancy aid 2 will rise with dropping liquid once more gradually, and open the injection outlet b of accumulator tank 1 below, just injection flows out; When injection will use up, this cup-shaped buoyancy aid 2 dropped to outlet b thereupon and is sealed because of dropping liquid L remaining in gravity own and the cup.Have only after reality is used, find that the above-mentioned product of commonly using still has following practical shortcoming:

Shown in Figure 1A, when droving injector controller when using, rocked or inclination and injection when being about to use up, this cup-shaped buoyancy aid 2 can form the relative relation of waving with tubular accumulator tank 1, at this moment, the hitching post 2a of cup-shaped buoyancy aid 1 bottom is as long as depart from outlet b slightly, then this hitching post 2a may prop up the bottom wall of tubular accumulator tank 1, and the just side direction wall of cup-shaped buoyancy aid top conflict tubular accumulator tank 1, form the dead point (died-point) of two active forces, cup-shaped buoyancy aid 2 will only block as shown in the figure, completely lose due automatic detent plug effect; This phenomenon very obviously and often takes place, and this is because the bed of sufferer may often be pushed and be rocked, or sufferer also may be seated on the wheelchair and promoted the perhaps action of sufferer itself; This shortcoming causes imperfect on the effect, and in case take place, the detent plug effect was lost efficacy, and control device performs practically no function, and influences great.

In addition, as shown in Figure 2, this located by prior art (two) is to be provided with hole post c in tubular accumulator tank 1 in addition, and inserts the buoyancy aid 3 that a bottom has T type plunger 3a, and to constitute a kind of self-braking control device that has, the same Fig. 1 of operating principle, Figure 1A are described; When injection will use up, this buoyancy aid 3 was sealed because of gravity own drops to hole post c.Have only after reality is used, find that the above-mentioned product of commonly using still has following practical shortcoming:

Shown in Fig. 2 A, the T type plunger 3a of this buoyancy aid desires each mating holes post c and the action of reaching detent plug, very difficult, and when droving injector controller is subjected to rock or inclination and injection when being about to use up when using, this buoyancy aid 3 and the tubular accumulator tank 1 relative relation of waving that forms, can cause T type plunger 3a to depart from hole post c more and be difficult to aiming at, then this buoyancy aid 3 may prop up the periphery of hole post c because of T type plunger 3a, and because of the side direction wall of its top conflict tubular accumulator tank 1, and form the dead point (died-point) of two active forces, then will block as shown in the figure and end, also lose the automatic detent plug effect of original expection; Ditto described, when promoting and rock when inevitable, the detent plug effect was promptly easily lost efficacy, and then this shortcoming causes imperfect on the effect, and reality be should give improvement.

As shown in Figure 3, this located by prior art (three) is device one a floating cup 4 in tubular accumulator tank 1, and a thin film patch d is installed in these floating cup 4 bottoms, and to constitute a kind of self-braking control device that has, the same Fig. 1 of operating principle, Figure 1A are described; When injection will use up, this floating cup 4 dropped to outlet because of dropping liquid L remaining in gravity own and the cup thereupon, and d is sealed with the thin film patch.Have only after reality is used, find that the above-mentioned product of commonly using still has following practical shortcoming:

As shown in Figure 3A, the thin film patch d that should float cup 4 drops to when exporting b, because thin film patch d is a circular flat diaphragm, when the injection of dropping syringe is about to use up, should float cup 4 because of dropping liquid L remaining in gravity own and the cup, drop to outlet b thereupon, at this moment, thin film patch d is exported b absorption and detent plug, but the detent plug action will cause thin film patch d to generate many places fold d ' because of being deformed into recessed lonely shape, the slit s that forms of fold d ' place then, to obviously destroy the adsorption of this thin film membrane d, then will be as shown in the figure, its diaphragm can't fit in the wall of outlet b outer rim sometimes fully, dropping liquid or air still can be located s by the slit and ooze out, and the effect of detent plug also has not idle automatically; What is more, no matter promote or whether rock, this shortcoming causes imperfect to existing eventually on the effect, remains to be improved in fact.

Therefore, the present invention supervises in commonly using the above-mentioned many practical shortcoming of product because of having, through actively conceiving and actual tests, then improve its overall structure, a kind of dropping liquid and air of can effectively intercepting, and prevent that blood from refluxing and develop, and no matter rock or neither the causing of whether tilting is affected, and can guarantee end to drip an effect, commonly use in the many practicalities of product point really with improvement, and significantly promote its practical effect.

[summary of the invention]

So main purpose of the present invention is the improvement that is to provide a kind of droving injector controller; Mainly be to install in the drop Storage Cup by the unsteady container that the bottom is the sphere film like to constitute; This container may float on the liquid interface, and the injection of output dropping liquid; When dropping liquid is about to drip off, this container is subjected to the acceleration that the liquid weight contained and liquid level reduce, the sphere bottom of its film like will be adsorbed in the opening part of drop Storage Cup rapidly, and fit tightly, can intercept dropping liquid and air really, and prevent backflow phenomenon, to reach the good effect of dripping of ending.

Another object of the present invention is the improvement that is to provide a kind of droving injector controller; The bottom of being somebody's turn to do the container that floats has the feature of film like sphere, even if doing the time spent at detent plug is rocked or is tilted, the also adsorbable opening part that fits in the drop Storage Cup of film like sphere, and the film like sphere has pliability, can guarantee that more it ends the improvement of dripping effect.

A further object of the present invention is the improvement that is to provide a kind of droving injector controller; The container that should float also can be made of floating cup and independent sphere thin film, and just this container can be contained the liquid weight that holds increases, promoting the decline effect of making this container of time spent at detent plug, and sphere thin film so have more the improvement of motility detent plug cooperation.

The present invention is in order to reach above-mentioned purpose and effect, and the technological means that it adopted comprises that the bottom is the unsteady container of sphere film like and droving injector controller improvement that drop Storage Cup member is formed; Wherein:

This drop Storage Cup is the accumulator tank for a tubular hollow, and the accumulator tank below is provided with the injection outlet, and injection can be flowed out;

The container that should float is the container that is the sphere film like for a soft and bottom, can be penetrated and molding by the Jet forming machine one, and the thickness of its top periphery is bigger, and it is thin to contract downwards gradually, and has the film like sphere in the bottom;

And unsteady container is to be placed in the drop Storage Cup, and may float on liquid interface, and the injection of output dropping liquid; When dropping liquid was about to drip off, this container was subjected to the acceleration that the drop weight of being contained and whole liquid level reduce and descends, and its film like sphere will be adsorbed in the injection outlet of drop Storage Cup rapidly, and fitted tightly because of the pliability of film like sphere self.

Advantage of the present invention and good effect are: can effectively intercept dropping liquid and air, and prevent that blood from refluxing, and no matter rock or neither the causing of whether tilting is affected, and can guarantee to end an effect.

[description of drawings]

Description of drawings is as follows:

Fig. 1 is located by prior art (one's) a generalized section;

Figure 1A is its hitching post of located by prior art () as long as depart from outlet slightly, promptly may prop up the wall of tubular accumulator tank bottom, and the just edgewise wall of cup-shaped buoyancy aid top conflict tubular accumulator tank and block and end, the section of detent plug effect thereby inefficacy action sketch map automatically;

Fig. 2 is located by prior art (twos') a generalized section;

Fig. 2 A is that its T type plunger of located by prior art (two) is difficult for the mating holes post and the action of reaching detent plug, the in a single day last mating holes post of T type plunger, and then T type plunger may prop up the periphery of Kong Zhu; Its top is also blocked the side direction wall of conflict tubular accumulator tank and is ended, automatically the section of detent plug effect thereby inefficacy action sketch map;

Fig. 3 is located by prior art (threes') a generalized section;

Fig. 3 A be its thin film patch of usefulness technology (three) when detent plug, can generate many places fold because of being deformed into recessed lonely shape, then this diaphragm-operated adsorption will be obviously destroyed in the slit that forms, fold place, the section of detent plug effect thereby inefficacy moves sketch map automatically;

Fig. 4 is the schematic perspective view of preferred embodiment of the present invention;

Fig. 5 is the perspective exploded view of preferred embodiment of the present invention;

Fig. 6 is the generalized section of preferred embodiment of the present invention;

Fig. 6 A is preferred embodiment of the present invention, tilts to descend all adsorbable generalized section that fits in the opening part of drop Storage Cup of its film like sphere even if the container that floats is;

Fig. 6 B is preferred embodiment of the present invention, even if the influence that the drop Storage Cup is rocked or tilts, all adsorbable generalized section that fits in the opening part of drop Storage Cup of film like sphere;

Fig. 7 is the perspective exploded view of another embodiment of the present invention;

Fig. 8 is an another embodiment of the present invention, and when dropping liquid is about to drip off, because of floating the acceleration that interior liquid weight of being contained of cup and liquid level reduce, the sphere bottom of its film like will be adsorbed rapidly, and fit tightly in the generalized section of the opening part of drop Storage Cup;

Fig. 9 is an another embodiment of the present invention, when the drop Storage Cup reaches 1/2 fullly when above in containing dropping liquid, utilizes the floating principle of buoyancy aid in liquid, just should may float on the liquid interface by floating cup, and the generalized section of output dropping liquid injection;

Fig. 9 A is an another embodiment of the present invention, tilts to descend all adsorbable generalized section that fits in the opening part of drop Storage Cup of its film like sphere even if floating cup is;

Fig. 9 B is an another embodiment of the present invention, though the influence that the drop Storage Cup is rocked or tilts, all adsorbable generalized section that fits in the opening part of drop Storage Cup of film like sphere;

Figure 10 is an another embodiment of the present invention, the actual configuration schematic diagram of implementing injection;

Figure number is described as follows:

Tubular accumulator tank 1 cup-shaped buoyancy aid 2 hitching post 2a

Buoyancy aid 3 T type plunger 3a float cup 4

Injection outlet b hole post c thin film patch d

Fold d slit s dropping liquid L

Drop Storage Cup 10 injection outlet 12 unsteady containers 20

Top periphery 22 film like spheres 24 floating cups 25

Jack 251 sphere thin film 26 fixed legs 261

Drainage tube 30 volume control devices 40 injection needles 50

60 drop bottles 70 of pointed joint

[specific embodiment]

For further understanding feature of the present invention, technological means and the concrete function of being reached, purpose, enumerate of the present invention one below than specific embodiment, and conjunction with figs., figure number are described in detail as follows:

Seeing also Fig. 4 to shown in Figure 6, is schematic perspective view, perspective exploded view and the generalized section of preferred embodiment of the present invention; Shown in figure, the present invention mainly comprises: drop Storage Cup 10 and bottom are the unsteady container 20 of sphere film like and form; Wherein:

This drop Storage Cup 10 is the accumulator tanks for a tubular hollow, and the accumulator tank below is provided with injection outlet 12, and just injection can flow out;

The container 20 that should float is the containers that are the sphere film like for a soft and bottom, can be penetrated and molding by the Jet forming machine one, the thickness of its top periphery 22 is bigger, and it is thin to contract downwards gradually, and has thin bunch shape sphere 24 in the bottom, this top also can have a flange in addition, stablizes to promote to float;

The container 20 that floats is to be placed in the drop Storage Cup 10, and may float on the liquid interface, and the injection of output dropping liquid; When dropping liquid is about to drip off, this container is subjected to the acceleration that the dropping liquid L weight of being contained and whole liquid level reduce and descends, its film like sphere 24 will be adsorbed in the injection outlet 12 of drop Storage Cup rapidly, and fit tightly because of the pliability of film like sphere 24 self.

Seeing also shown in Fig. 6 A, is preferred embodiment of the present invention, tilts to descend all adsorbable generalized section that fits in the injection outlet 12 of drop Storage Cup of its film like sphere 24 even if the container 20 that floats is; Shown in figure, the feature that film like sphere 24 is had promptly is: the sphere thin film has preferable contact, and direction-free restriction, in the scope that sphere is contained,, also always just can drop in the injection outlet 12 even the container 20 that floats has the angle of inclination of relative swing, drip and fit to end, and the relative swing at this angle of inclination is very limited, and only in the scope that the top periphery 22 of the container 20 that floats can rock, film like sphere 24 is enough to contain at the most.

Seeing also shown in Fig. 6 B, is in the preferred embodiment of the present invention, though the influence that drop Storage Cup 10 is rocked or tilts, all adsorbable generalized section that fits in the injection outlet 12 of drop Storage Cup of film like sphere 24; Described by reaching preceding paragraph shown in the figure, drop Storage Cup 10 is very limited with the relative swing angle of inclination of unsteady container 20, at the most only in the scope that the top periphery 22 of the container 20 that floats can rock relatively, so in any case film like sphere 24 all is enough to contain, therefore, even if drop Storage Cup 10 is subjected to significantly rocking or when tilting, film like sphere (24) is also according to its preferable contact and there is not the universal architectural feature that is had such as restricted, the container 20 that floats all just can be descended in the injection outlet 12, drip and fit to end, significantly improve and commonly use that product one is rocked or the shortcoming of the i.e. device inefficacy of tilting, and tangible progressive is arranged.

Seeing also shown in Figure 7ly, is the perspective exploded view of another embodiment of the present invention; Shown in figure, the preceding paragraph container 20 that floats also can be made of floating cup 25 and independent sphere thin film 26, and turn over and are provided with a jack 251 at floating 25 ends of cup.Insert admittedly for sphere thin film 26 to enclose fixed column 261, just this container can be contained the liquid weight that holds increases, and promoting the decline effect of making this container of time spent at detent plug, and just sphere thin film 26 detent plug that has more motility cooperates.

See also shown in Figure 8, be in the another embodiment of the present invention, when dropping liquid is about to drip off, because of floating the acceleration that cup 25 interior dropping liquid L weight of being contained and liquid level reduce, the bottom of its sphere thin film 26 will be adsorbed rapidly, and fit tightly in the generalized section of the injection outlet 12 of drop Storage Cup; Shown in figure, by the effect of sphere thin film 26, really can effectively intercept dropping liquid and air, and prevent backflow phenomenon, to reach the good effect of dripping of ending.

See also shown in Figure 9, be in the another embodiment of the present invention, when drop Storage Cup 10 reaches 1/2 fullly when above in containing dropping liquid L, this floating cup 25 utilizes the floating principle of buoyancy aid in liquid, and may float on liquid interface, and the generalized section of output dropping liquid L injection; Seeing also shown in Fig. 9 A, is in the another embodiment of the present invention, even if should be to tilt to descend by floating cup 25, and all adsorbable generalized section that fits in the injection outlet 12 of drop Storage Cup 10 of its sphere thin film 26; Seeing also shown in Fig. 9 B, is in the another embodiment of the present invention, even if the influence that drop Storage Cup 10 is rocked or tilts, all adsorbable generalized section that fits in the injection outlet 12 of drop Storage Cup 10 of sphere thin film 26; By above-listed graphic shown in, not only can be by the effect of sphere thin film 26, reach effective obstruct dropping liquid and air, and good the ending that prevents backflow phenomenon dripped effect, and it is ditto described, sphere thin film 26 has preferable contact, and direction-free restriction, even if the influence that drop Storage Cup 10 is rocked or inclines and pour, drop Storage Cup 10 is very limited with the relative swing angle of inclination of floating cup alms bowl 25, at the most only in the scope that the top periphery that floats cup 25 can rock relatively, so in any case sphere thin film 26 all is enough to contain, therefore, can significantly improve being rocked or shortcoming that the device that tilts promptly lost efficacy of commonly using, and tangible progressive is arranged.

See also shown in Figure 10ly, be another embodiment of the present invention, the actual configuration schematic diagram of implementing injection; Shown in figure, drop Storage Cup 10 is built-in with ending that floating cup 25 and sphere thin film 26 constituted and drips a control device, injection outlet 12 is connected a drainage tube 30, and be provided with volume control device 40 in drainage tube 30 appropriate positions, drainage tube 30 ends then are injection needle 50, and a pointed joint 60 is installed in drop Storage Cup 10 tops, in order to the bottom of insertion point drop bottle 70, and imports drop.

What proposed to illustrate is, in the another embodiment of the present invention, the container 20 that should float can be made of floating cup 25 and independent sphere thin film 26, and the liquid weight that this floating cup 25 can be contained hold increases, do the decline effect of this container of time spent to promote at detent plug, and the detent plug that makes sphere thin film 26 have more motility cooperates, this is to promote according to preferable enforcement example of the present invention, and according to being suitable for that spirit of the present invention is extended, so must wrap in the claim that is inserted in this case.

Lay special stress on explanation be, the topmost intention spirit of the present invention is to make droving injector controller can intercept dropping liquid and air really, do not rocked or tilts influence; Mainly the members such as unsteady container 20 that are the sphere film like by drop Storage Cup 10 and bottom are formed; Wherein, the feature that this film like sphere 24 is had promptly is: the sphere thin film has preferable contact and directionless restricted, the scope that the top periphery 22 of unsteady container 20 can rock is always in the scope that sphere is contained, and film like sphere (gathering around) has suitable pliability, even if drop Storage Cup 10 is subjected to significantly rocking or when tilting, film like sphere 24 also can and not have the universal architectural feature that is had such as restricted according to its preferable contact, the container 20 that floats all just can drop in the injection outlet 12, can guarantee that more it ends an effect and fit to end dripping, so can significantly improve and commonly use that product one is rocked or the shortcoming of the device inefficacy of tilting promptly, improve the safety on using, reduce the burden of medical resource, and tangible progressive is arranged; In addition, when emphasizing once more, be that film like sphere 24 can not generate fold and slit, do not commonly use the misgivings that product can generate the fold seepage; Its architectural feature and the real elite place of digging meaning for the present invention of the space kenel that is constituted.

In sum, its its specific structure feature of the improvement mat of droving injector controller of the present invention really can reach every requirement of former goal of the invention, and significantly improves the greatest practical effect of habit formula product, propose in accordance with the law patent in please, earnestly ask early grant accurate for expecting.

Claims

1. the improvement of a droving injector controller, it mainly is made up of unsteady container and drop Storage Cup member that the bottom is the sphere film like;

This drop Storage Cup is the accumulator tank of a tubular hollow, and this accumulator tank below then is provided with the injection outlet, and injection can be flowed out;

The container that should float is the one-body molded container that a soft and bottom is the sphere film like, and the thickness of its top periphery is bigger, and it is thin to contract downwards gradually, and has the film like sphere in the bottom;

And unsteady container is to be placed in the drop Storage Cup, and may float on the liquid interface, and the injection of output dropping liquid; When dropping liquid was about to drip off, this container was subjected to the acceleration that the drop weight of being contained and whole liquid level reduce and descends, and its film like sphere will be adsorbed in the injection outlet of drop Storage Cup rapidly, and fitted tightly because of the pliability of film like sphere self.

2. point according to claim 1 instils and seals the improvement of device control device, it is characterized in that: this unsteady container, its top can have a flange, stablizes to promote to float.