CN202699792U - Self-destructive disposable safety infusion set - Google Patents
Self-destructive disposable safety infusion set Download PDFInfo
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- CN202699792U CN202699792U CN 201220351652 CN201220351652U CN202699792U CN 202699792 U CN202699792 U CN 202699792U CN 201220351652 CN201220351652 CN 201220351652 CN 201220351652 U CN201220351652 U CN 201220351652U CN 202699792 U CN202699792 U CN 202699792U
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- buoyancy body
- self
- infusion
- housing
- transfusion system
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Abstract
The utility model relates to a self-destructive disposable safety infusion set, which comprises a bottle insertion needle, a dropping funnel, a hose, a liquid medicament filter and an intravenous infusion needle arranged in sequence in a through way, wherein a flow regulator is sleeved outside the hose. The self-destructive disposable safety infusion set further comprises a safety valve mechanism arranged in the dropping funnel or between hoses, wherein the safety valve mechanism comprises a shell, a floating body arranged in the shell, and a sealing piece connected to the end face of the lower side of the floating body; a cavity is formed in the floating body; and the lower end of the shell is provided with an infusion channel port. The self-destructive disposable safety infusion set is characterized in that: the floating body is provided with a fine hole for communicating the outside with the internal cavity. The diameter of the fine hole is designed in a way that the total weight of a liquid medicament flowing inwards through the fine hole and the floating body is just larger than the buoyancy force on the floating body in a time interval ranging from the start of infusion to the completion of infusion. The liquid medicament continuously enters the cavity along with infusion, the total weight of the floating body is increased continuously till infusion is nearly completed, the infusion channel port is sealed through the sealing piece, and the infusion channel port is sealed permanently in the form of normal infusion, so that true self-destruction is realized.
Description
Technical field
This utility model relates to a kind of self-destructed disposable and uses safe transfusion system, more particularly, relate to a kind of can the self-closed infusion pipeline when venous transfusion, prevent that air from entering in the patient body and possess simultaneously the disposable use safe transfusion system of self-destroying function.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 it does not have the self-closed function when medicinal liquid is totally lost, exist air and enter the possibilities such as patient's vein, blood back, 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, such as disclosed transfusion devices such as Chinese patent CN201643132, CN101700421, CN201564868, although its title differs, structure is different, all is to have installed a float valve or float in the dropping funnel of transfusion device additional, when medicinal liquid is not totally lost, float valve or float are opened or are floated, and pipeline is unimpeded; When medicinal liquid was about to be totally lost, float valve or float self-closed infusion pipeline entered the possibilities such as patient's vein, blood back thereby stop air.
For preventing cross infection, after disposable transfusion device uses clinically, need centralized recovery to destroy.For this reason; when medicinal liquid is totally lost; through manual operation; can be destroyed and " type self-destroyed " transfusion device that can not be reused is invented; such as Chinese patent CN2553807; CN102319463 etc.; immediate prior art is Chinese patent CN2812959; it comprises injection needles; flexible pipe; flow regulator; protective sleeve; needle for inserting bottle; dropper and dropping funnel; it is characterized in that: described dropping funnel is tubulose, is provided with a self-destruction in it and draws core, and it is a piston that the head of core is drawn in this self-destruction; it is one can be directly connected in the contraction body of described hose of infusion apparatus that the bottom of core is drawn in this self-destruction, and is provided with an otch of being convenient to fracture in the position of this contraction body predetermined altitude.The weak point of above-mentioned each patent is: these " type self-destroyed " transfusion devices are in fact manual self-destruction type infusion devices, must the patient or the medical worker manually operate, have very large potential safety hazard, can not realize self-destruction truly, need to be improved.
Summary of the invention
This utility model aims to provide a kind of when medicinal liquid is about to be totally lost, and unsteady physical ability is sealed well infusion channel and possessed simultaneously the self-destructed disposable use safe transfusion system of self-destroying function.
Technical solution of the present utility model is as follows:
Self-destructed disposable uses 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 sealing member of buoyancy body downside end, in this buoyancy body cavity is arranged, there is the infusion channel mouth housing lower end, it is characterized in that: have the pore that is communicated with outside and internal cavities on the buoyancy body, the diameter of this pore guarantees in the deadline section of infusing from beginning to infuse to, flow into the weight sum of medicinal liquid and buoyancy body through pore, just greater than, the buoyancy that buoyancy body is suffered.
Above-mentioned mechanics flow control effect refers to, during less than nominal-mass, buoyancy body is suspended state at the quality of liquid medicine that flows into the buoyancy body internal cavities through pore.
When beginning to infuse, carrying out along with transfusion, medicinal liquid not cracked ends pore enters in the buoyancy body cavity, the overall weight of buoyancy body constantly increases, but because the restriction of pore, this moment, the overall weight of buoyancy body still soaked into the liquid suffered buoyancy fully less than it, and buoyancy body is suspended state, sealing member on the buoyancy body can not cover the infusion channel mouth, and transfusion is normally carried out.
When transfusion is nearly finished, buoyancy body and descending, until the sealing member of its lower end covers the infusion channel mouth, make air can not enter into the infusion pipeline of lower end, passway, thereby prevented that air from entering in patient's the body, stops the generation of fortuitous event, at this moment, the medicinal liquid that flows into cavity through pore is enough, and the overall gravity of buoyancy body soaks into the liquid suffered buoyancy fully greater than buoyancy body just.
Because pore diameter is very little, the medicinal liquid that enters in the buoyancy body cavity is difficult to flow out in cavity.Reuse, even it is into the liquid that buoyancy body is soaked fully, its suffered buoyancy is not enough to overcome the interior medicinal liquid gravity of cavity and the gravity sum of buoyancy body, under the normal infusion form, the sealing member of buoyancy body covers the infusion channel mouth all the time, can't successfully infuse again.
This utility model is realized self-destruction truly owing to adopt technique scheme, and having got rid of needs manually operated potential safety hazard, has realized easily goal of the invention.
Further technical scheme is that described buoyancy body cavity is built-in with absorbent material.
Above-mentioned absorbent material can adopt biology performance, satisfactory all absorbent materials of medicine intermiscibility, such as medical sponge.
The medicinal liquid that above-mentioned each technical scheme has more effectively guaranteed to enter in the cavity is difficult for flowing out, and has further improved the reliability of self-destruction.
Preferably, described sealing member is made by having elastic soft material such as silica gel material.
Preferably, described relief valve mechanism is arranged in the described dropping funnel, and described housing is the body of dropping funnel.
Preferably, described housing, buoyancy body adopt biology performance, the satisfactory any materials of medicine intermiscibility to make.
Preferably, described sealing member is plane member.
Preferably, described sealing member is curved surface shape member.
Preferably, described sealing member forms conical surface body.
Preferably, the diameter of pore is less than 0.5mm, greater than 0.1mm.
The technical scheme in a step is again,
It also comprises the guider that is arranged in the housing, and above-mentioned valve body only can in the axis direction freely-movable along housing, guarantee that before transfusion closes to an end above-mentioned pore is immersed in the medicinal liquid all the time by this guider.
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.
Another technical scheme is: the buoyancy body of absorbent material is arranged in described, and its whole center of gravity is positioned at the on the lower side position of buoyancy body, and is positioned on the whole centrage.
This technical scheme is designed and manufactured into buoyancy body and lays particular stress on structure, guarantees suspended state and the descend attitude of buoyancy body, and under action of gravity, the guiding buoyancy body descends and puts in place, the sealing infusion channel.
The technical scheme in another step is that it also comprises the locating part that is used for the limiting valve body lifting height that is arranged in the housing and is connected with housing.
According to the actual requirements, can produce the self-destructed disposable that has different size pore aperture or have different pore numbers and use safe transfusion system, allow input patient's amount of liquid medicine with control, such as 500ml, 1000ml, 1500ml etc., so that infuse when nearly finishing, sealing member can cover the infusion channel mouth just, and the overall weight of buoyancy body all soaks into the liquid suffered buoyancy greater than it just.
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 partial enlarged drawing of the 7th embodiment of this utility model.
Accompanying drawing 9 is the partial enlarged drawing of the 8th embodiment of this utility model.
Accompanying drawing 10 is the partial enlarged drawing of the 9th embodiment of this utility model.
Accompanying drawing 11 is the partial enlarged drawing of the tenth embodiment of this utility model.
Accompanying drawing 12 is the partial enlarged drawing of the 11 embodiment of this utility model.
Accompanying drawing 13 is the partial enlarged drawing of the 12 embodiment of this utility model.
Accompanying drawing 14 is the partial enlarged drawing of the 13 embodiment of this utility model.
Accompanying drawing 15 is the partial enlarged drawing of the 14 embodiment of this utility model.
Accompanying drawing 16 is the structural representation of the 15 embodiment of this utility model.
Each sequence number is respectively among the figure: 1, housing I; 2, housing II; 3, guide; 4, guide post; 5, sealing member; 6, buoyancy body; 7, through hole; 8, threeway; 9, passway; 10, medical sponge; 11, pore; 12, cavity; 13, needle for inserting bottle; 14, dropping funnel; 15, flexible pipe; 16, liquid medicine filter; 17, venoclysis needle; 18, flow regulator; 19, liquid through-hole; 20, locating part.
The specific embodiment
Referring to accompanying drawing 1,2, the self-destructed disposable shown in first embodiment of this utility model uses safe transfusion system, is that a self-destructed disposable that relief valve mechanism is arranged in the described dropping funnel uses safe transfusion system.Its dropping funnel body is the housing of relief valve mechanism, considers easily manufacturedly, and this housing is comprised of housing I 1, housing II 2.This self-destructed disposable uses safe transfusion system to comprise and sequentially connects the needle for inserting bottle 13 that arranges, threeway 8, dropping funnel 14, flexible pipe 15, liquid medicine filter 16 and venoclysis needle 17, wherein be equipped with for the flow regulator 18 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 passway 9 the housing lower end, channel middle has through hole 7, the sealing member 5 that is connected with buoyancy body 6, buoyancy body internal cavity 12, also has the outside of connection on the buoyancy body (in the dropping funnel, buoyancy body is outer) with the pore 11 of internal cavities 12, the diameter of this pore guarantees under the normal infusion situation, from beginning transfusion in transfusion deadline section, flow into the weight sum of medicinal liquid and buoyancy body through pore, just greater than, the buoyancy that buoyancy body is suffered.Buoyancy body cavity 12 is built-in with medical sponge 10.Above-mentioned sealing member 5 is made by silica gel material, sealing member 5 is positioned at buoyancy body downside end, it also comprises and is arranged in the housing (dropping funnel) and the guide 3 that 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, above-mentioned guide post 4 can be along guide 3 freely-movable on the direction of the axis of dropping funnel, guarantee that before transfusion closes to an end pore 11 is immersed in the medicinal liquid all the time.The guide post 4 that above-mentioned housing I 1, housing II 2, guide 3, buoyancy body 6 and being attached thereto connects, sealing member 5 are made by meeting the material that biology performance, medicine intermiscibility require.
From beginning transfusion, carrying out along with transfusion, medicinal liquid not cracked ends pore 11 enters in the buoyancy body cavity 12, the overall weight of buoyancy body constantly increases, but because the restriction of pore, the overall weight of buoyancy body is still less than its suffered buoyancy at this moment, and buoyancy body is suspended state, sealing member 5 can not cover the through hole 7 at infusion channel mouth 9 middle parts, and transfusion is normally carried out.
When transfusion when nearly finishing, buoyancy body and descending until the sealing member of its lower end covers the infusion channel mouth, makes air can not enter into the infusion pipeline of infusion channel mouth lower end, thereby has prevented that air from entering in patient's the body, stops the generation of fortuitous event.This moment is enough through the medicinal liquid that pore flows into cavity, and the weight sum of medicinal liquid and buoyancy body is just greater than the suffered buoyancy of buoyancy body.
Because pore diameter is very little and the existence of absorbent material, the medicinal liquid that enters in the buoyancy body cavity is difficult to flow out in cavity.Reuse, into the liquid even buoyancy body is soaked fully, its suffered buoyancy is not enough to overcome the interior medicinal liquid of cavity and the weight sum of buoyancy body, and under the normal infusion form, the sealing member of buoyancy body covers the infusion channel mouth all the time, can't successfully infuse again.
Referring to accompanying drawing 3,4,5,6, this utility model second and third, four, five embodiment self-destructed disposable shown in respectively uses safe transfusion system, except following difference, first embodiment is identical with this utility model, these differences are: the guidance mode that they have all adopted the outer wall of buoyancy body 6 to match with housing II2 inwall, and be provided with locating part 20 at the boundary of housing I 1, housing II 2, guaranteed buoyancy body freely-movable on the direction of the axis of dropping funnel, and then guarantee that before transfusion closes to an end pore 11 is immersed in the medicinal liquid all the time.Above-mentioned housing I 1, housing II 2, buoyancy body 6, sealing member 5, locating part 20 are made by the material that meets biology performance, the requirement of medicine intermiscibility.The diameter of pore is 0.11mm, 0.2mm, 0.3mm, 0.49mm respectively.This utility model second and third, four, five mutual differences of embodiment are structural shape and the connected mode of buoyancy body, sealing member, passway.
Referring to accompanying drawing 7,8,9,10, self-destructed disposable shown in this utility model the 6th, seven, eight, nine embodiment distinguish uses safe transfusion system, what jointly be different from front 5 embodiment of this utility model is: the guidance mode that they have adopted the outer wall of buoyancy body 6 to match with guide 3, guarantee that buoyancy body is along the axis direction freely-movable of dropping funnel, and then guarantee that before transfusion closes to an end pore 11 is immersed in the medicinal liquid all the time.Difference is structural shape and the connected mode of buoyancy body, sealing member, passway each other.The 9th embodiment of this utility model is on the basis of above-mentioned guide frame, in conjunction with utilizing the guiding problem that structure has solved spherical buoyancy body that lays particular stress on.Above-mentioned housing I 1, housing II 2, buoyancy body 6, sealing member 5, guide 3 are made by the material that meets biology performance, the requirement of medicine intermiscibility.
Referring to accompanying drawing 11,12, self-destructed disposable shown in this utility model the tenth, 11 embodiment distinguish uses safe transfusion system, be different from front 9 the embodiment parts of this utility model and also be guide frame, buoyancy body 6 is for laying particular stress on structure, housing II2 bottom is respectively Internal Spherical Surface, turbination, corresponding with buoyancy body 6 construction profile, lay particular stress on structure and guarantee that suspended state, descend attitude and the pore 11 of buoyancy body are immersed in the medicinal liquid all the time.Before transfusion closed to an end, buoyancy body 6 and sealing member 5 fell into housing II2 bottom section, seal infusion channel under the guiding of action of gravity and housing II2 polycrystalline substance.
Referring to accompanying drawing 13,14, self-destructed disposable shown in the 12,13 embodiment difference of this utility model uses safe transfusion system, be with the difference of other embodiment of the present utility model, buoyancy body 6 downsides do not have connection sealing element 5, sealing member 5 is the wreath of hollow, interior circular diameter is connected with the bottom of housing II2 less than the diameter of spherical buoyancy body.In infusion process, the structure that lays particular stress on of buoyancy body guarantees that suspended state, descend attitude and the pore 11 of buoyancy body are immersed in the medicinal liquid all the time.Before transfusion closed to an end, buoyancy body 6 bottoms fell into the inner ring of sealing member 5, the sealing infusion channel.
Referring to accompanying drawing 15, the self-destructed disposable shown in the 14 embodiment of this utility model uses safe transfusion system, is different from other embodiment of this utility model, and housing II2 bottom surface is the plane, and the centre is the through hole 7 in the passway 9.Buoyancy body 6 is the cylinder of a hollow, and its diameter of section is greater than radius of circle sum in the radius of housing II2 face of cylinder inwall and the passway, and less than the diameter of housing II2 face of cylinder inwall, the downside end is connected with sealing member 5.In infusion process, buoyancy body lays particular stress on structure and guarantees that suspended state, descend attitude and the pore 11 of buoyancy body are immersed in the medicinal liquid all the time.Before transfusion closed to an end, sealing member 5 engaged with the bottom surface of housing II2, the sealing infusion channel.
Referring to accompanying drawing 16, self-destructed disposable shown in the 15 embodiment of this utility model uses safe transfusion system, and dropping funnel 14 divides with relief valve mechanism and is arranged, and relief valve mechanism is arranged between dropping funnel and the flow regulator.In addition, relief valve mechanism can also be arranged between needle for inserting bottle and dropping funnel, flow regulator and the liquid medicine filter, by selecting different relief valve mechanism, will be combined into some embodiment, no longer describe 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.
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. self-destructed disposable uses 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 sealing member of buoyancy body downside end, in this buoyancy body cavity is arranged, there is the infusion channel mouth housing lower end, it is characterized in that: have the pore that is communicated with outside and internal cavities on the buoyancy body, the diameter of this pore guarantees in the deadline section of infusing from beginning to infuse to, flow into the weight sum of medicinal liquid and buoyancy body through pore, just greater than, the buoyancy that buoyancy body is suffered.
2. self-destructed disposable according to claim 1 uses safe transfusion system, and it is characterized in that: described buoyancy body cavity is built-in with absorbent material.
3. self-destructed disposable according to claim 2 uses safe transfusion system, and it is characterized in that: described relief valve mechanism is arranged in the described dropping funnel, and described housing is the body of dropping funnel.
4. arbitrary described self-destructed disposable uses safe transfusion system according to claim 1-3, it is characterized in that: it also comprises the guider that is arranged in the housing, and above-mentioned buoyancy body only can be in the axis direction freely-movable along housing by this guider.
5. arbitrary described self-destructed disposable uses safe transfusion system according to claim 1-3, and it is characterized in that: the buoyancy body of absorbent material is arranged in described, and its whole center of gravity is positioned at the on the lower side position of buoyancy body, and is positioned on the whole centrage.
6. arbitrary described self-destructed disposable uses safe transfusion system according to claim 1-3, and it is characterized in that: described sealing member is made by having elastic soft material.
7. self-destructed disposable according to claim 2 uses safe transfusion system, it is characterized in that: above-mentioned absorbent material adopts biology performance, the satisfactory absorbent material of medicine intermiscibility.
8. arbitrary described self-destructed disposable uses safe transfusion system according to claim 1-3, it is characterized in that: it also comprises the locating part that is used for restriction buoyancy body lifting height that is arranged in the housing and is connected with housing.
9. arbitrary described self-destructed disposable uses safe transfusion system according to claim 1-3, and it is characterized in that: the diameter of pore is less than 0.5mm, greater than 0.1mm.
10. self-destructed disposable according to claim 4 uses safe transfusion system, it is characterized in that: the guide post that described housing, guide, buoyancy body and being attached thereto connects, sealing member are made by meeting the material that biology performance, medicine intermiscibility require.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351652 CN202699792U (en) | 2012-07-12 | 2012-07-12 | Self-destructive disposable safety infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351652 CN202699792U (en) | 2012-07-12 | 2012-07-12 | Self-destructive disposable safety infusion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202699792U true CN202699792U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220351652 Expired - Lifetime CN202699792U (en) | 2012-07-12 | 2012-07-12 | Self-destructive disposable safety infusion set |
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| Country | Link |
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| CN (1) | CN202699792U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008832A1 (en) * | 2012-07-07 | 2014-01-16 | Qi Jian | Disposable safety infusion device |
| CN105311716A (en) * | 2014-07-14 | 2016-02-10 | 湖南省绿洲惠康发展有限公司 | Disposable automatic-liquid-stop infusion apparatus |
| CN103536991B (en) * | 2012-07-12 | 2017-07-28 | 祁健 | Self-destructed disposable uses safe transfusion system |
-
2012
- 2012-07-12 CN CN 201220351652 patent/CN202699792U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008832A1 (en) * | 2012-07-07 | 2014-01-16 | Qi Jian | Disposable safety infusion device |
| CN103536991B (en) * | 2012-07-12 | 2017-07-28 | 祁健 | Self-destructed disposable uses safe transfusion system |
| CN105311716A (en) * | 2014-07-14 | 2016-02-10 | 湖南省绿洲惠康发展有限公司 | Disposable automatic-liquid-stop infusion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130130 Effective date of abandoning: 20170728 |
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| AV01 | Patent right actively abandoned |