CN103520808A - Disposable safety infusion set - Google Patents
Disposable safety infusion set Download PDFInfo
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- CN103520808A CN103520808A CN201210239246.5A CN201210239246A CN103520808A CN 103520808 A CN103520808 A CN 103520808A CN 201210239246 A CN201210239246 A CN 201210239246A CN 103520808 A CN103520808 A CN 103520808A
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- buoyancy body
- closeouts
- housing
- disposable use
- infusion
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Abstract
The invention relates to a disposable safety infusion set which comprises a bottle inserting needle, a dripping bucket, hoses, a medicine liquid filter and an intravenous infusion needle, wherein the bottle inserting needle, the tripping bucket, the hoses, the medicine liquid filter and the intravenous infusion needle are sequentially arranged in a penetrating mode. The hoses are sleeved with a flow adjustor. The disposable safety infusion set further comprises a safety valve mechanism arranged in the dripping bucket or between the hoses and having the mechanical flow control function. The safety valve mechanism comprises a shell and a floating body arranged in the shell, the bottom of the floating body is provided with an opening, a blocking part is connected to the end face position of the opening, and a hole is formed in the blocking part. According to the disposable safety infusion set, when infusion is nearly finished, under the action of the barometric pressure and self weight, the floating body, the blocking part and an infusion channel opening end face are combined to block an infusion channel so that air cannot enter an infusion pipeline of the lower end of an channel opening, and therefore the possibility that air enters the vein of a patient and blood return occurs is prevented. Due to the fact that the hole is formed in the blocking part, inside and outside barometric pressure can be balanced when ethylene oxide sterilization is performed, the blocking part is prevented from deforming and is not prone to dislocation and disengagement from the floating body, products are easily processed, and the sealing performance is ensured.
Description
Technical field
The present invention relates to a kind of disposable use safe transfusion system, more particularly, relate to a kind of can self-closed when venous transfusion infusion pipeline, prevent that air from entering the disposable use safe transfusion system in patient body.Belong to medical sanitary technology field.
Background technology
While at present patient being carried out to venous transfusion, be widely used disposable transfusion device, like this to preventing that the cross infection between patient from having played positive role.But, due to its self-closed function when medicinal liquid is totally lost not, exist vein that air enters patient, blood back etc. may, to patient, bring the factor being absolutely unsafe, also increased medical personnel's operating pressure simultaneously.
For this reason, disposable use safe transfusion system that can self-closed pipeline function when much having medicinal liquid and being totally lost is invented, although its title differs, structure is different, all in the dropping funnel of transfusion device or between flexible pipe and flexible pipe, to be provided with a relief valve mechanism that has mechanics flow control effect, this relief valve mechanism includes a housing (dropping funnel body), be arranged on the buoyancy aid in housing (dropping funnel), a concave shaped portion (space) is established in this buoyancy aid below, buoyancy aid below is connected with sealing member, the seal is fine and close elastic component, it is around commonly annulus cylindricality lining body, centre is diaphragm.Therefore, the concave shaped portion after diaphragm, in buoyancy aid (space) is the confined space being isolated with outside.There is infusion channel mouth the lower end of housing (dropping funnel body), and infusion channel mouth is positioned at the below of sealing member.In use, by means of the mechanics Synthesis principle of gravity, buoyancy, by sealing member, block or leave the automatic open close that infusion channel mouth is realized infusion channel, when medicinal liquid is not totally lost, buoyancy aid floating, pipeline is unimpeded; When medicinal liquid is about to be totally lost, buoyancy aid is along with medicinal liquid face declines until sealing infusion pipeline, may thereby stop vein that air enters patient, blood back etc.
The deficiencies in the prior art part is: disposable use safe transfusion system belongs to aseptic medical equipment, need to pass through strict sterilization process.Sterilizing methods generally adopts ethylene oxide sterilizing.When sterilizing, the transfusion device that is placed in sterilizing cabinet first need to be carried out to application of vacuum, this process is brought test to buoyancy aid and sealing member connectivity robustness.In forming the process of vacuum, air expansion in buoyancy aid inner space (concave shaped portion), the particularly diaphragm portion distortion that takes the lead in of sealing member, its deflection increases with the volume of space (concave shaped portion), and sealing member is very easily because distortion is torn and off normal and even come off from buoyancy aid.Can, when application of vacuum finishes to get back to atmospheric pressure state, sealing member be because the variation of inner and outer air pressure can produce reply, but now restore to the original state well, very large on the sealing property impact in later use procedure.In the disclosed transfusion device of Chinese patent CN101022845, CN201668789U, adopted "eight" shape structure reply slip-off preventing problem, relatively better, but buoyancy aid difficulty of processing is very large.Disposable use safe transfusion system is Hematological System of Professional Workers administration device, very high to the requirement that comes off of the biology performance of material, medicine intermiscibility, anti-foreign body, the buoyancy aid of the open transfusion device of Chinese patent CN201564867U and sealing member stick with glue the probability connecing and are excluded in practice, only have the interference fit that degree of adoption is larger to connect, middle diaphragm is served as a contrast body crimp around, has affected sealing property.The technical elements of above-mentioned these transfusion devices more or less exists defect, need to be improved.
Summary of the invention
The present invention aims to provide the disposable use safe transfusion system of a kind of closeouts difficult drop-off, good seal performance.
Technical solution of the present invention is as follows:
Disposable use safe transfusion system, comprise and sequentially connect the needle for inserting bottle arranging, dropping funnel, flexible pipe, liquid medicine filter and venoclysis needle, wherein at hose overcoat, be equipped with for controlling the flow regulator of flow, it also comprises a relief valve mechanism that has mechanics flow control effect being arranged in described dropping funnel or between flexible pipe and flexible pipe, this relief valve mechanism includes a housing, be arranged on the buoyancy body in housing, be connected to the closeouts of end, buoyancy body below, between closeouts diaphragm and buoyancy body, have living space, there is infusion channel mouth the lower end of housing, infusion channel mouth is positioned at the below of closeouts,
It is characterized in that:
The through hole of balance closeouts inner and outer air pressure while having sterilizing application of vacuum in described closeouts.
Above-mentioned have the relief valve mechanism of mechanics flow control effect to meet following condition: in infusion process, dropping funnel liquid level is when normal height, and buoyancy body is in suspended state.
The advantage of technique scheme is, due to the existence of closeouts through hole, and 1, during application of vacuum, the pressure between closeouts buoyancy body in space and housing internal pressure balance, closeouts is indeformable, is difficult for offing normal and coming off from buoyancy body; 2, simultaneously therefore, be not required to be to solve and anti-ly off normal the problem of coming off and adopt and be not easy to the buoyancy body of processing and the syndeton of closeouts, product handling ease; 3, there is not the bad problem of aforementioned reinstatement in closeouts, guaranteed sealing property.
Further technical scheme is, this closeouts through hole meets: at medicinal liquid, be about to be totally lost, buoyancy body is along with medicinal liquid face declines until closeouts while blocking infusion channel mouth, and infusion pipeline cannot be realized air pressure balance with being communicated with in housing outside buoyancy body by closeouts through hole below passway.
Realizing the measure comparatively easily of this scheme is that the diameter of closeouts through hole is less than the poor of infusion channel mouth end face concentric circular cylindrical and interior radius of a circle, is greater than 0.1mm.
The technical scheme of a step is again, between buoyancy body and housing, by guider, is flexibly connected, and this guider guarantees that buoyancy body can only freely-movable on the axis direction of housing.
Above-mentioned guider can adopt following technical scheme: in buoyancy body, connect guide post, have the guide being attached thereto in housing, above-mentioned guide post coordinates with guide, can be along guide freely-movable in the direction of the axis of dropping funnel.
Above-mentioned guider also can adopt following technical scheme: by the matched in clearance between buoyancy body outer wall and inner walls, realize buoyancy body motion guide, guaranteed that buoyancy body can not depart from the axis of housing.
Above-mentioned guider can also adopt following technical scheme: by buoyancy body outer wall, coordinate with the guide being connected on housing, guaranteed that buoyancy body moves along the axis of housing.
The technical scheme of a step is again, and closeouts is the parts that elastomeric material is made.
The technical scheme of a step is again, corresponding to the buoyancy body material of different densities, as required, can serve as a contrast the Baltimore groove of establishing corresponding size, adjusting buoyancy body weight between body and buoyancy body in closeouts.
Optimal technical scheme is again, and described relief valve mechanism is arranged in described dropping funnel, and described housing is dropping funnel body.
The present invention, owing to adopting technique scheme, has realized goal of the invention easily.
Accompanying drawing explanation
Below with reference to drawings and Examples, the present invention is described in further details.
The structural representation that accompanying drawing 1 is first embodiment of the invention.
The partial enlarged drawing that accompanying drawing 2 is first embodiment of the invention.
The partial enlarged drawing that accompanying drawing 3 is second embodiment of the invention.
The partial enlarged drawing that accompanying drawing 4 is third embodiment of the invention.
The partial enlarged drawing that accompanying drawing 5 is four embodiment of the invention.
The partial enlarged drawing that accompanying drawing 6 is fifth embodiment of the invention.
The partial enlarged drawing that accompanying drawing 7 is sixth embodiment of the invention.
Accompanying drawing 8 is the top view of the present invention second, five embodiment buoyancy body
Accompanying drawing 9 is the profile of other form closeouts of the present invention.
In figure, each sequence number is respectively: 1, soft-shell I; 2, hard shell body II; 3, guide; 4, guide post; 5, closeouts; 6, buoyancy body; 7, closeouts through hole; 8, threeway; 9, passway; 10, needle for inserting bottle; 11, dropping funnel; 12, flexible pipe; 13, liquid medicine filter; 14, venoclysis needle; 15, flow regulator; 16, liquid through-hole; 17, Baltimore groove; 18, locating part.
The specific embodiment
Referring to accompanying drawing 1,2, the disposable use safe transfusion system shown in first embodiment of the invention, is one relief valve mechanism is arranged to the disposable use safe transfusion system in described dropping funnel.Its dropping funnel body is the housing of relief valve mechanism, considers easily manufacturedly, and dropping funnel is comprised of soft-shell I 1, hard shell body II 2.This disposable use safe transfusion system comprises the needle for inserting bottle 10 that sequentially connects setting, dropping funnel 11, flexible pipe 12, liquid medicine filter 13 and venoclysis needle 14, wherein at hose overcoat, be equipped with for controlling the flow regulator 15 of flow, it also comprises a relief valve mechanism that has mechanics flow control effect being arranged in described dropping funnel, this relief valve mechanism includes housing II2, be arranged on the buoyancy body 6 in housing II2, there is infusion channel mouth 9 housing lower end, the closeouts 5 being connected with above-mentioned buoyancy body 6, this closeouts 5 is made by latex material, closeouts 5 is positioned at end, buoyancy body below, it also comprises the guide 3 that is arranged in housing (dropping funnel) and is connected with housing (dropping funnel), the guide post 4 that is connected and matches with above-mentioned guide 3 with above-mentioned buoyancy body 6, on guide 3, have liquid through-hole 16, above-mentioned guide post 4 can move along guide 3, and only can freely-movable in the direction of the axis of dropping funnel.Above-mentioned soft-shell I 1, hard shell body II 2,, the guide post 4 that connects of guide 3, buoyancy body 6 and being attached thereto, closeouts 5 make by meeting the material that biology performance, medicine intermiscibility require.Above-mentioned have the relief valve mechanism of mechanics flow control effect to meet following condition: in infusion process, dropping funnel liquid level is when normal height, and buoyancy body is in suspended state; Closeouts through hole 7 diameters are less than circular diameter in the end face of passway, and during contact, both are concentric circular.
When transfusion nearly completes, medicinal liquid liquid level declines in dropping funnel, buoyancy body is along with liquid level declines and declines, until the closeouts of its lower end covers infusion channel mouth, buoyancy body, closeouts and passway end face combination shutoff infusion channel, the cooperation of guide and guide post has guaranteed that buoyancy body can not depart from the axis of dropping funnel, has strengthened the reliability of sealing.
Referring to accompanying drawing 3, disposable use safe transfusion system shown in second embodiment of the invention, different from first embodiment of the invention is, the diameter of closeouts through hole is 0.2mm, in relief valve mechanism, buoyancy body motion guide has adopted buoyancy body outer wall to coordinate with inner walls, guaranteed that buoyancy body can not depart from the axis of dropping funnel, under the effect of atmospheric pressure and deadweight, buoyancy body, closeouts and passway end face combination shutoff infusion channel, make air can not enter into the infusion pipeline of lower end, passway, thereby prevented that air from entering in patient's body.
Referring to accompanying drawing 4, disposable use safe transfusion system shown in third embodiment of the invention, different from first and second embodiment of the present invention is, in third embodiment of the invention, in relief valve mechanism, buoyancy body motion guide has adopted coordinating of guide and buoyancy body outer wall, guaranteed that buoyancy body can not depart from the axis of dropping funnel, under the effect of atmospheric pressure and deadweight, buoyancy body, closeouts and passway end face combination shutoff infusion channel, make air can not enter into the infusion pipeline of liquid outlet lower end, thereby prevented that air from entering in patient's body.
Referring to accompanying drawing 5,6,7, disposable use safe transfusion system shown in the present invention fourth, fifth, six embodiment, with first, second and third embodiment difference of the present invention, buoyancy body and closeouts structure, type of attachment have had variation, and three embodiment are identical respectively with above for guide frame.
The present invention also can select respectively different relief valve mechanism structures between needle for inserting bottle and dropping funnel, dropping funnel and liquid medicine filter, and difform closeouts is combined into some embodiment with difform infusion channel mouth, at this, no longer describes.
Above-mentioned drawings and Examples only, for the present invention is described, do not constitute any limitation protection scope of the present invention.
Certainly, under inventive concept of the present invention, the present invention has multiple form of implementation and is equal to replacement scheme, this to those skilled in the art, reading does not need to pay creative work after this description and gets final product reproducing, at this, does not just describe in detail.Adopt the above-mentioned replacement scheme that is equal to certainly to fall into protection scope of the present invention.
The present invention that above-mentioned structure like this forms all has many saving graces for technical staff of the same trade now, and the progressive that really possesses skills.
But, in technical field of the present invention, as long as possess the most basic knowledge, can improve other exercisable embodiment of the present invention.In the present invention substantive technical scheme has been proposed to patent protection request, its protection domain should comprise all variation patterns with above-mentioned technical characterstic.
Claims (10)
1. disposable use safe transfusion system, comprise and sequentially connect the needle for inserting bottle arranging, dropping funnel, flexible pipe, liquid medicine filter and venoclysis needle, wherein at hose overcoat, be equipped with for controlling the flow regulator of flow, it also comprises a relief valve mechanism that has mechanics flow control effect being arranged in described dropping funnel or between flexible pipe and flexible pipe, this relief valve mechanism includes a housing, be arranged on the buoyancy body in housing, be connected to the closeouts of end, buoyancy body below, between closeouts diaphragm and buoyancy body, have living space, there is infusion channel mouth the lower end of housing, infusion channel mouth is positioned at the below of closeouts, it is characterized in that: the through hole of balance closeouts inner and outer air pressure while having sterilizing application of vacuum in described closeouts.
2. disposable use safe transfusion system according to claim 1, it is characterized in that: described closeouts through hole meets, at medicinal liquid, be about to be totally lost, buoyancy body is along with medicinal liquid face declines until closeouts while blocking infusion channel mouth, and the infusion pipeline below passway cannot be realized air pressure balance with being communicated with in housing outside buoyancy body by closeouts through hole.
3. disposable use safe transfusion system according to claim 2, is characterized in that: the diameter of closeouts through hole is less than the poor of infusion channel mouth end face concentric circular cylindrical and interior radius of a circle, is greater than 0.1mm.
4. according to the arbitrary described disposable use safe transfusion system of claim 1-3, it is characterized in that: between buoyancy body and housing, by guider, be flexibly connected, this guider guarantees that buoyancy body can only freely-movable on the axis direction of housing.
5. disposable use safe transfusion system according to claim 4, it is characterized in that: in buoyancy body, connect guide post, in housing, have the guide being attached thereto, above-mentioned guide post coordinates with guide, can be along guide freely-movable in the direction of the axis of dropping funnel.
6. disposable use safe transfusion system according to claim 4, is characterized in that: by the matched in clearance between buoyancy body outer wall and inner walls, realize buoyancy body motion guide, guaranteed that buoyancy body can not depart from the axis of housing.
7. disposable use safe transfusion system according to claim 4, is characterized in that: by buoyancy body outer wall, coordinate with the guide being connected on housing, guaranteed that buoyancy body moves along the axis of housing.
8. according to the arbitrary described disposable use safe transfusion system of claim 1-3, it is characterized in that: closeouts is the parts that elastomeric material is made.
9. according to the arbitrary described disposable use safe transfusion system of claim 1-3, it is characterized in that: between described closeouts lining body and buoyancy body, be provided with the Baltimore groove that regulates buoyancy body weight.
10. according to the arbitrary described disposable use safe transfusion system of claim 1-3, it is characterized in that: described housing is dropping funnel body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210239246.5A CN103520808A (en) | 2012-07-07 | 2012-07-07 | Disposable safety infusion set |
| PCT/CN2013/078842 WO2014008832A1 (en) | 2012-07-07 | 2013-07-04 | Disposable safety infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210239246.5A CN103520808A (en) | 2012-07-07 | 2012-07-07 | Disposable safety infusion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103520808A true CN103520808A (en) | 2014-01-22 |
Family
ID=49923389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210239246.5A Pending CN103520808A (en) | 2012-07-07 | 2012-07-07 | Disposable safety infusion set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103520808A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334230A (en) * | 2016-10-11 | 2017-01-18 | 王方炉 | Multifunctional air-check transfusion system |
| CN110405530A (en) * | 2019-08-21 | 2019-11-05 | 珠海格力电器股份有限公司 | It can prevent the pressure equaliser, liquid reserve tank and lathe cooler of liquid reserve tank bulging |
| CN112426588A (en) * | 2020-11-30 | 2021-03-02 | 李连洪 | Multifunctional medical gas-liquid pot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4870987A (en) * | 1988-07-22 | 1989-10-03 | Cheng Ton Lin | Relating to a flow regulator for intravenous injection device |
| CN201192506Y (en) * | 2008-05-24 | 2009-02-11 | 杨梅芳 | Self-closed type liquid-preserving transfusion device |
| CN201248914Y (en) * | 2008-06-06 | 2009-06-03 | 戎静华 | Drawstring type automatically-stopping transfusion system |
| CN202179756U (en) * | 2011-08-18 | 2012-04-04 | 刘宝国 | Infusion device with hanging liner floating and sinking safety valve drip cup |
| CN202699734U (en) * | 2012-07-07 | 2013-01-30 | 祁健 | Disposable safe infusion set |
-
2012
- 2012-07-07 CN CN201210239246.5A patent/CN103520808A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4870987A (en) * | 1988-07-22 | 1989-10-03 | Cheng Ton Lin | Relating to a flow regulator for intravenous injection device |
| CN201192506Y (en) * | 2008-05-24 | 2009-02-11 | 杨梅芳 | Self-closed type liquid-preserving transfusion device |
| CN201248914Y (en) * | 2008-06-06 | 2009-06-03 | 戎静华 | Drawstring type automatically-stopping transfusion system |
| CN202179756U (en) * | 2011-08-18 | 2012-04-04 | 刘宝国 | Infusion device with hanging liner floating and sinking safety valve drip cup |
| CN202699734U (en) * | 2012-07-07 | 2013-01-30 | 祁健 | Disposable safe infusion set |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334230A (en) * | 2016-10-11 | 2017-01-18 | 王方炉 | Multifunctional air-check transfusion system |
| CN110405530A (en) * | 2019-08-21 | 2019-11-05 | 珠海格力电器股份有限公司 | It can prevent the pressure equaliser, liquid reserve tank and lathe cooler of liquid reserve tank bulging |
| CN112426588A (en) * | 2020-11-30 | 2021-03-02 | 李连洪 | Multifunctional medical gas-liquid pot |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |