CN202699734U - Disposable safe infusion set - Google Patents
Disposable safe infusion set Download PDFInfo
- Publication number
- CN202699734U CN202699734U CN 201220334485 CN201220334485U CN202699734U CN 202699734 U CN202699734 U CN 202699734U CN 201220334485 CN201220334485 CN 201220334485 CN 201220334485 U CN201220334485 U CN 201220334485U CN 202699734 U CN202699734 U CN 202699734U
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- China
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- buoyancy body
- closeouts
- housing
- disposable use
- transfusion system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a disposable safe infusion set. The disposable safe infusion set comprises a bottle insertion needle, a drip chamber, hoses, a liquid medicine filter and an intravenous infusion needle which are arranged in a penetrating manner in sequence, wherein a flow regulator is sleeved outside the hoses; the disposable safe infusion set also comprises a safety valve mechanism with a mechanical flow control effect which is arranged in the drip chamber or between the hoses; the safety valve mechanism comprises a shell and a floating body which is arranged in the shell; the bottom of the floating body is provided with an opening; and a plugging member is connected on an end face of the opening and is provided with a hole. According to the disposable safe infusion set, when infusion is to be finished, the floating body, the plugging member and the end face of an infusion passage port are combined to plug an infusion passage under the action of atmospheric pressure and dead weight, and air cannot enter the infusion pipeline at the lower end of the passage port, thereby preventing the air from possibly entering veins of a patient and preventing blood return. The plugging member is provided with the hole, so that balance of internal atmospheric pressure and external atmospheric pressure during ethylene oxide sterilization can be guaranteed, deformation is prevented, the plugging member is not easily separated from the floating body, a product is easy to machine, and the sealing property is guaranteed.
Description
Technical field
This utility model 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 the patient body.Belong to the medical sanitary technology field.
Background technology
When at present the patient being carried out venous transfusion, be widely used disposable transfusion device, like this to preventing that the cross infection between the patient from having played positive role.But, because its self-closed function when medicinal liquid is totally lost not, exist vein that air enters the patient, blood back etc. may, bring the factor that is absolutely unsafe to the patient, also increased medical personnel's operating pressure simultaneously.
For this reason, much having the disposable use safe transfusion system that medicinal liquid can self-closed pipeline function when being totally lost is invented, although its title differs, structure is different, all be to be provided with a relief valve mechanism that the mechanics flow control effect is arranged in the dropping funnel of transfusion device or between flexible pipe and the flexible pipe, this relief valve mechanism includes a housing (dropping funnel body), be arranged on the buoyancy aid in the housing (dropping funnel), a concave shaped portion (space) is established in this buoyancy aid below, the buoyancy aid below is connected with sealing member, the seal is fine and close elastic component, be annulus cylindricality lining body commonly, the centre is diaphragm.Therefore, the concave shaped portion (space) behind the diaphragm, in the buoyancy aid is the confined space that is isolated with the outside.There is the infusion channel mouth lower end of housing (dropping funnel body), and the infusion channel mouth is positioned at the below of sealing member.In use, by means of the mechanics Synthesis principle of gravity, buoyancy, block or leave the automatic open close that the infusion channel mouth is realized infusion channel by sealing member, when medicinal liquid is not totally lost, the buoyancy aid come-up, pipeline is unimpeded; When medicinal liquid was about to be totally lost, buoyancy aid descends along with the medicinal liquid face until the sealing infusion pipeline, may thereby stop vein that air enters the patient, blood back etc.
The deficiencies in the prior art part is: disposable use safe transfusion system belongs to aseptic medical equipment, needs through strict sterilization process.Sterilizing methods generally adopts ethylene oxide sterilizing.When sterilization, need to place the transfusion device of sterilizing cabinet to carry out first application of vacuum, this process is brought test to buoyancy aid and sealing member connectivity robustness.In the process that forms vacuum, air expansion in the 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 owing to be out of shape and tear and off normal even come off from buoyancy aid.Can when application of vacuum finished to get back to atmospheric pressure state, sealing member be because the variation of inner and outer air pressure can produce answer, but restore to the original state well this moment, and is very large on the impact of the sealing property in the later use procedure.Adopted " eight " character form structure reply slip-off preventing problem in the disclosed transfusion device of Chinese patent CN101022845, CN201668789U, relatively better, but the buoyancy aid difficulty of processing is very large.Disposable use safe transfusion system is the 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 that connects and are excluded in practice, then only have the larger interference fit of degree of adoption to connect, middle diaphragm is served as a contrast body crimp on every side, has affected sealing property.The technical elements of above-mentioned these transfusion devices more or less exists defective, need to be improved.
Summary of the invention
This utility model 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 utility model is as follows:
Disposable use safe transfusion system, comprise and sequentially connect the needle for inserting bottle that arranges, dropping funnel, flexible pipe, liquid medicine filter and venoclysis needle, wherein be equipped with for the flow regulator of controlling flow at hose overcoat, it comprises that also one is arranged in the described dropping funnel or a relief valve mechanism that the mechanics flow control effect is arranged between flexible pipe and the flexible pipe, this relief valve mechanism includes a housing, be arranged on the buoyancy body in the housing, be connected to the closeouts of end, buoyancy body below, have living space between closeouts diaphragm and the buoyancy body, there is the infusion channel mouth lower end of housing, the 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 when the sterilization application of vacuum is arranged on the described closeouts.
Above-mentioned have the relief valve mechanism of mechanics flow control effect to satisfy following condition: when the dropping funnel liquid level was in normal height in infusion process, buoyancy body was in suspended state.
The advantage of technique scheme is, because the existence of closeouts through hole, and 1, during application of vacuum, the pressure between the closeouts buoyancy body and housing internal pressure balance in the space in, closeouts is indeformable, and difficult offing normal from buoyancy body comes off; 2, simultaneously therefore, be not required to be to solve and anti-ly off normal the problem of coming off and adopt the buoyancy body that is not easy to process and the syndeton of closeouts, product handling ease; 3, there is not the bad problem of aforementioned reinstatement in closeouts, has guaranteed sealing property.
Further technical scheme is, this closeouts through hole satisfies: be about to be totally lost at medicinal liquid, buoyancy body descends along with the medicinal liquid face until closeouts when blocking the infusion channel mouth, and infusion pipeline can't be by being communicated with the realization air pressure balance in the outer housing of closeouts through hole and buoyancy body below the passway.
Realize that the comparatively easily measure of this scheme is, the diameter of closeouts through hole is poor less than infusion channel mouth end face concentric circular cylindrical and interior radius of a circle, greater than 0.1mm.
The technical scheme in a step is again, is flexibly connected by guider between buoyancy body and housing, 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: connect guide post on the buoyancy body, the guide that is attached thereto is arranged in the housing, above-mentioned guide post cooperates with guide, can be along guide freely-movable on 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 the buoyancy body motion guide, guaranteed the axis that buoyancy body can not depart from housing.
Above-mentioned guider can also adopt following technical scheme: cooperate with guide on being connected to housing by the buoyancy body outer wall, guaranteed that buoyancy body moves along the axis of housing.
The technical scheme in a step is that closeouts is the parts that elastomeric material is made again.
The technical scheme in a step is again, corresponding to the buoyancy body material of different densities, as required, can serve as a contrast in closeouts the Baltimore groove of establishing corresponding size between body and the buoyancy body, regulating buoyancy body weight.
Optimal technical scheme is again, and described relief valve mechanism is arranged in the described dropping funnel, and described housing is the dropping funnel body.
This utility model has been realized goal of the invention easily owing to adopt technique scheme.
Description of drawings
Below with reference to drawings and Examples this utility model is described in further details.
Accompanying drawing 1 is the structural representation of first embodiment of this utility model.
Accompanying drawing 2 is the partial enlarged drawing of first embodiment of this utility model.
Accompanying drawing 3 is the partial enlarged drawing of second embodiment of this utility model.
Accompanying drawing 4 is the partial enlarged drawing of the 3rd embodiment of this utility model.
Accompanying drawing 5 is the partial enlarged drawing of the 4th embodiment of this utility model.
Accompanying drawing 6 is the partial enlarged drawing of the 5th embodiment of this utility model.
Accompanying drawing 7 is the partial enlarged drawing of the 6th embodiment of this utility model.
Accompanying drawing 8 is the top view of this utility model second, five embodiment buoyancy body
Accompanying drawing 9-1,9-2,9-3,9-4 are the profile of other form closeouts of this utility model.
Each sequence number is respectively among the figure: 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 this utility model is one relief valve mechanism is arranged at disposable use safe transfusion system in the 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 be equipped with for the flow regulator 15 of controlling flow at hose overcoat, it also comprises a relief valve mechanism that the mechanics flow control effect is arranged that is arranged in the described dropping funnel, this relief valve mechanism includes housing II2, be arranged on the buoyancy body 6 in the housing II2, there is infusion channel mouth 9 the housing lower end, the closeouts 5 that is 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 the 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, have liquid through-hole 16 on the guide 3, above-mentioned guide post 4 can move along guide 3, and only can freely-movable on 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 satisfy following condition: when the dropping funnel liquid level was in normal height in infusion process, buoyancy body was in suspended state; Closeouts through hole 7 diameters are less than circular diameter in the end face of passway, and both are concentric circular during contact.
When transfusion is nearly finished, the medicinal liquid liquid level descends in dropping funnel, buoyancy body descends and descends along with liquid level, until the closeouts of its lower end covers the infusion channel mouth, buoyancy body, closeouts and passway end face combination shutoff infusion channel, the cooperation of guide and guide post has guaranteed the axis that buoyancy body can not depart from dropping funnel, has strengthened the reliability of sealing.
Referring to accompanying drawing 3, disposable use safe transfusion system shown in second embodiment of this utility model, different from first embodiment of this utility model is, the diameter of closeouts through hole is 0.2mm, the buoyancy body motion guide has adopted the buoyancy body outer wall to cooperate with inner walls in the relief valve mechanism, guaranteed the axis that buoyancy body can not depart from 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 the body.
Referring to accompanying drawing 4, disposable use safe transfusion system shown in the 3rd embodiment of this utility model, with this utility model first, what two embodiment were different is, in the 3rd embodiment of this utility model, the buoyancy body motion guide has adopted cooperating of guide and buoyancy body outer wall in the relief valve mechanism, guaranteed the axis that buoyancy body can not depart from 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 the body.
Referring to accompanying drawing 5,6,7, disposable use safe transfusion system shown in this utility model fourth, fifth, six embodiment, with first, second and third embodiment of this utility model difference be, buoyancy body and closeouts structure, type of attachment have had variation, and guide frame is identical with three embodiment in front respectively.
This utility model also can be selected respectively different relief valve mechanism structures between needle for inserting bottle and dropping funnel, dropping funnel and liquid medicine filter, difform closeouts is combined into some embodiment with difform infusion channel mouth, no longer describes at this.
Above-mentioned drawings and Examples only are used for explanation this utility model, and protection domain of the present utility model is not constituted any limitation.
Certainly, under inventive concept of the present utility model, this utility model has multiple form of implementation and is equal to replacement scheme, and this reads and need not pay creative work after this description and get final product reproducing to those skilled in the art, does not just describe in detail at this.Adopt the above-mentioned replacement scheme that is equal to certainly to fall into protection domain of the present utility model.
This utility model that above-mentioned structure like this consists of 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 utility model, as long as possess the most basic knowledge, can improve other exercisable embodiment of the present utility model.In this utility model substantive technical scheme has been proposed the 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 that arranges, dropping funnel, flexible pipe, liquid medicine filter and venoclysis needle, wherein be equipped with for the flow regulator of controlling flow at hose overcoat, it comprises that also one is arranged in the described dropping funnel or a relief valve mechanism that the mechanics flow control effect is arranged between flexible pipe and the flexible pipe, this relief valve mechanism includes a housing, be arranged on the buoyancy body in the housing, be connected to the closeouts of end, buoyancy body below, have living space between closeouts diaphragm and the buoyancy body, there is the infusion channel mouth lower end of housing, the 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 when the sterilization application of vacuum is arranged on the described closeouts.
2. disposable use safe transfusion system according to claim 1, it is characterized in that: described closeouts through hole satisfies, be about to be totally lost at medicinal liquid, buoyancy body descends along with the medicinal liquid face until closeouts when blocking the infusion channel mouth, and the infusion pipeline below the passway can't be by being communicated with the realization air pressure balance in the outer housing of closeouts through hole and buoyancy body.
3. disposable use safe transfusion system according to claim 2, it is characterized in that: the diameter of closeouts through hole is poor less than infusion channel mouth end face concentric circular cylindrical and interior radius of a circle, greater than 0.1mm.
4. arbitrary described disposable use safe transfusion system according to claim 1-3 is characterized in that: be flexibly connected by guider between buoyancy body and housing, 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: connect guide post on the buoyancy body, the guide that is attached thereto is arranged in the housing, and above-mentioned guide post cooperates with guide, can be along guide freely-movable on 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 the buoyancy body motion guide, guaranteed the axis that buoyancy body can not depart from housing.
7. disposable use safe transfusion system according to claim 4 is characterized in that: cooperate with guide on being connected to housing by the buoyancy body outer wall, guaranteed that buoyancy body moves along the axis of housing.
8. arbitrary described disposable use safe transfusion system according to claim 1-3, it is characterized in that: closeouts is the parts that elastomeric material is made.
9. arbitrary described disposable use safe transfusion system is characterized in that: be provided with the Baltimore groove of regulating buoyancy body weight between described closeouts lining body and the buoyancy body according to claim 1-3.
10. arbitrary described disposable use safe transfusion system according to claim 1-3, it is characterized in that: described housing is the dropping funnel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334485 CN202699734U (en) | 2012-07-07 | 2012-07-07 | Disposable safe infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334485 CN202699734U (en) | 2012-07-07 | 2012-07-07 | Disposable safe infusion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202699734U true CN202699734U (en) | 2013-01-30 |
Family
ID=47580082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220334485 Expired - Lifetime CN202699734U (en) | 2012-07-07 | 2012-07-07 | Disposable safe infusion set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202699734U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272313A (en) * | 2013-05-28 | 2013-09-04 | 上海金塔医用器材有限公司 | Filter with blood return preventing time controllable on medical infusion set and medical infusion set |
| CN103394149A (en) * | 2013-05-16 | 2013-11-20 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway |
| WO2014008832A1 (en) * | 2012-07-07 | 2014-01-16 | Qi Jian | Disposable safety infusion device |
| CN103520808A (en) * | 2012-07-07 | 2014-01-22 | 祁健 | Disposable safety infusion set |
| CN103977486A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Blood return prevention time-controllable filter for medical infusion apparatus and medical infusion apparatus |
| CN104740712A (en) * | 2015-04-16 | 2015-07-01 | 山东新华安得医疗用品有限公司 | Automatic bottle replacing type infusion device |
| CN105816924A (en) * | 2016-05-09 | 2016-08-03 | 任凯 | Knee-joint flushing device |
-
2012
- 2012-07-07 CN CN 201220334485 patent/CN202699734U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008832A1 (en) * | 2012-07-07 | 2014-01-16 | Qi Jian | Disposable safety infusion device |
| CN103520808A (en) * | 2012-07-07 | 2014-01-22 | 祁健 | Disposable safety infusion set |
| CN103394149A (en) * | 2013-05-16 | 2013-11-20 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway |
| CN103394149B (en) * | 2013-05-16 | 2015-02-11 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway and method thereof |
| CN103272313A (en) * | 2013-05-28 | 2013-09-04 | 上海金塔医用器材有限公司 | Filter with blood return preventing time controllable on medical infusion set and medical infusion set |
| CN103272313B (en) * | 2013-05-28 | 2015-03-04 | 上海金塔医用器材有限公司 | Filter with blood return preventing time controllable on medical infusion set and medical infusion set |
| CN103977486A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Blood return prevention time-controllable filter for medical infusion apparatus and medical infusion apparatus |
| CN104740712A (en) * | 2015-04-16 | 2015-07-01 | 山东新华安得医疗用品有限公司 | Automatic bottle replacing type infusion device |
| CN105816924A (en) * | 2016-05-09 | 2016-08-03 | 任凯 | Knee-joint flushing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU ZHIYU MEDICAL EQUIPMENT CO.,LTD. Assignor: Qi Jian Contract record no.: 2014320000011 Denomination of utility model: Disposable safety infusion device Granted publication date: 20130130 License type: Exclusive License Record date: 20140113 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |