CN203749922U - Disposable automatic stop and infusion device - Google Patents
Disposable automatic stop and infusion device Download PDFInfo
- Publication number
- CN203749922U CN203749922U CN201420071249.7U CN201420071249U CN203749922U CN 203749922 U CN203749922 U CN 203749922U CN 201420071249 U CN201420071249 U CN 201420071249U CN 203749922 U CN203749922 U CN 203749922U
- Authority
- CN
- China
- Prior art keywords
- buoyancy aid
- main part
- liquid
- aid main
- dropping funnel
- Prior art date
- 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
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000003814 drug Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000007667 floating Methods 0.000 abstract description 7
- 230000001954 sterilising effect Effects 0.000 abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 2
- 238000001990 intravenous administration Methods 0.000 abstract 1
- 238000009489 vacuum treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 241000238367 Mya arenaria Species 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Abstract
The utility model relates to a disposable automatic stop and infusion device with good sealing performance, of which a liquid sealing part does not fall down easily, which comprises a bottle-inserting needle, a dripping bucket, a hose, a medical liquid filter and an intravenous infusion needle which are communicated and disposed in order, wherein a flow regulator which controls flow is sleeved outside the hose and a safety valve mechanism is also disposed. The safety valve mechanism comprises a shell and a floating body subject which has a cavity inside and is disposed inside the shell, wherein the liquid sealing part is connected to the lower part of the floating body subject, and an infusion channel hole is disposed on the lower end of the shell and located under the liquid sealing part, wherein a structure which balances gas pressures inside and outside the floating body during assembly, sterilization and vacuum treatment of the automatic stop and infusion device is also disposed in order to realize processing and mechanical assembly of the floating body subject and the liquid sealing part conveniently.
Description
Technical field
This utility model relates to a kind of disposable use automatic liquid-stopping transfusion apparatus, more particularly, relates to one energy self-closed infusion pipeline in the time of venous transfusion, prevents that air from entering the disposable use automatic liquid-stopping transfusion apparatus 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 in the time that medicinal liquid is totally lost not, exist air enter patient vein, blood back etc. may, bring the hidden danger being absolutely unsafe to patient, 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 difference, all that a relief valve mechanism that has mechanics flow control effect is set in the dropping funnel of transfusion device or between flexible pipe and flexible pipe, 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, center bottom 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, leave or block infusion channel mouth and realize the automatic open close of infusion channel by sealing member, in the time that medicinal liquid is not totally lost, buoyancy aid floating, pipeline is unimpeded; In the time that medicinal liquid is about to be totally lost, buoyancy aid along with medicinal liquid face decline until sealing infusion pipeline, thereby stop air enter patient vein, blood back etc. may.
The deficiencies in the prior art part is:
1, the easy distortion of sealing member even comes off.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.In the process of formation vacuum, air expansion in buoyancy aid inner space (concave shaped portion), sealing member particularly diaphragm portion takes the lead in being out of shape, 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 main part.Can, in the time that 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, depends on the stress that sealing member hardness, version are brought.
2, buoyancy aid process and assemble inconvenience.In the disclosed transfusion device of Chinese patent CN101022845, CN201668789U, adopt " loudspeaker " formula syndeton reply slip-off preventing problem, relatively better, but the large opening of the inner chamber of buoyancy aid main part is little, necessary rigid demoulding when injection molding, processing inconvenience, yield rate is not high.Meanwhile, in above-mentioned sealing member and buoyancy aid main part assembling process, soft sealing member lining body needs could be connected with buoyancy aid main part after radial deformation, occurs because the increase of cavity internal gas pressure is difficult for being seated, caducous phenomenon, and the difficulty that realizes motorization assembly is very large.The technical elements of above-mentioned these transfusion devices more or less exists defect, need to be improved.
Summary of the invention
This utility model aims to provide that a kind of sealing liquid part indeformablely comes off, closed performance is good, is convenient to realize the disposable use automatic liquid-stopping transfusion apparatus of buoyancy aid main part and sealing liquid part motorization assembly.
The technical solution of the utility model is as follows:
Disposable use automatic liquid-stopping transfusion apparatus, comprise and sequentially connect the needle for inserting bottle arranging, dropping funnel, flexible pipe, liquid medicine filter and venoclysis needle, wherein be equipped with the flow regulator for controlling flow at hose overcoat, it also comprises that of being arranged in described dropping funnel or between flexible pipe and flexible pipe has the relief valve mechanism of mechanics flow control effect, this relief valve mechanism includes a housing, be arranged on the buoyancy aid main part that the inside in housing is cavity, this buoyancy aid main part bottom connects sealing liquid part and forms buoyancy aid, there is infusion channel mouth the lower end of housing, infusion channel mouth is positioned at the below of sealing liquid part, it is characterized in that: sealing liquid part has with buoyancy aid main part junction the hole that is communicated with buoyancy aid space outerpace and buoyancy aid main part internal cavities.
The above-mentioned relief valve mechanism that has mechanics flow control effect meets following condition: in infusion process, housing inner liquid medicine liquid level is in the time of normal height, and buoyancy aid is in suspended state.
The advantage of technique scheme is, 1, due to the existence of hole, realize buoyancy aid inner chamber and housing inner chamber interlinks, in the time of sterilizing application of vacuum, in buoyancy aid inner chamber, air pressure and housing inner chamber air pressure can reach balance, and sealing liquid part is indeformable, can not off normal and even come off from buoyancy aid main part; 2, do not need to adopt and be not easy to the buoyancy aid main part of processing and the syndeton of sealing liquid part for solving the anti-problem of coming off of offing normal, product handling ease, yield rate is high; 3, there is not the bad problem of aforementioned reinstatement in sealing liquid part, ensured closed performance; 4, sealing liquid part can meet connectivity robustness and motorization assembly requirement with the form that engages of buoyancy aid main part.
Further technical scheme is, L shaped groove is arranged at described buoyancy aid main part bottom, and the hole of sealing liquid part and buoyancy aid main part junction is formed by above-mentioned L shaped groove.
The technical scheme of another step is that described sealing liquid part is barrel shaped structure, is nested with in buoyancy aid main part bottom, bucket wall is annulus post, and drum head is disc-shaped diaphragm, above the inwall of bucket wall and drum head, has groove, be communicated with into L shaped groove, form the hole that is communicated with buoyancy aid space outerpace and buoyancy aid main part internal cavities.
The technical scheme of a step is again, and the peripheral thickness of the drum head of described sealing liquid part can be slightly larger than interior thickness.
Adopt buoyancy aid main part and the sealing liquid part of said structure, facilitate buoyancy aid processing and motorization assembly.
Optimal technical scheme is again, and described relief valve mechanism is arranged in described dropping funnel, and described housing is dropping funnel body.
This utility model, owing to adopting technique scheme, has been realized goal of the invention easily.
Brief description of the 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 structural representation of second embodiment of this utility model.
Accompanying drawing 4 is the partial enlarged drawing of second embodiment of this utility model.
Accompanying drawing 5 is the structural representation of the 3rd embodiment of this utility model.
Accompanying drawing 6 is the partial enlarged drawing of the 3rd embodiment of this utility model.
Accompanying drawing 7 is the structural representation of the 4th embodiment of this utility model.
Accompanying drawing 8 is the partial enlarged drawing of the 4th embodiment of this utility model.
Accompanying drawing 9 is the buoyancy aid main part axonometric drawing of this utility model first and third embodiment.
Accompanying drawing 10 is the buoyancy aid main part axonometric drawing of this utility model second, four embodiment.
Accompanying drawing 11 is the sealing liquid part profile of this utility model the 5th, six, seven, eight embodiment.
In figure, each sequence number is respectively: 1, needle for inserting bottle; 2, air filter; 3A, air bleeding valve; 3B, medicinal liquid threeway; 4A, hard shell body; 4B, top soft-shell; 5A, hard shell body bottom; 5B, bottom hard shell body; 6, medicinal liquid central passage; 7A, locating part; 7B, guide; 8, buoyancy aid main part; 9, hole; 10, sealing liquid part; 11, infusion channel mouth; 12, flexible pipe; 13, flow regulator; 14, liquid medicine filter; 15, venoclysis needle; 16, guide post; 17, hard shell body upper cover; 18, L shaped groove.
Detailed description of the invention
Referring to accompanying drawing 1,2, the disposable use automatic liquid-stopping transfusion apparatus shown in first embodiment of this utility model, is one relief valve mechanism is arranged to the disposable use automatic liquid-stopping transfusion apparatus in described dropping funnel.Its dropping funnel body is the housing of relief valve mechanism, considers easily manufacturedly, and dropping funnel is made up of hard shell body upper cover 17, hard shell body 4A and hard shell body bottom 5A.In case top lid 17, have needle for inserting bottle 1, air filter 2 and air bleeding valve 3A.Locating part 7A and hard shell body 4A are one-body molded.On 7A, have medicinal liquid central passage 6.Buoyancy aid main part 8 is arranged in hard shell body 4A.Infusion channel mouth 11 is arranged on 5A.Sealing liquid part 10 is made up of latex material, is positioned at buoyancy aid main part 8 belows, is connected with buoyancy aid main part 8, and the bottom of buoyancy aid main part 8 is provided with L shaped groove 18, forms the hole 9 that is communicated with buoyancy aid space outerpace and buoyancy aid main part 8 internal cavities.This disposable use automatic liquid-stopping transfusion apparatus comprises sequentially and to connect the needle for inserting bottle 1 that arranges, dropping funnel (17,4A form with 5A), flexible pipe 12, liquid medicine filter 14 and venoclysis needle 15, wherein outside flexible pipe 12, be equipped with the flow regulator 13 for controlling 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 hard shell body 4A, locating part 7A, buoyancy aid main part 8, sealing liquid part 10, infusion channel mouth 11, hard shell body bottom 5A.Above-mentioned buoyancy aid main part 8 can move along the cylinder shape inner wall of hard shell body 4A bottom, and only can freely-movable in the direction of the axis of hard shell body 4A.The sealing liquid part 10 that above-mentioned hard shell body 4A, hard shell body bottom 5A, locating part 7A, buoyancy aid main part 8 and being attached thereto connects is made by meeting the material that biology performance, drug compatibility require.The above-mentioned relief valve mechanism that has mechanics flow control effect meets following condition: in infusion process, dropping funnel inner liquid medicine liquid level is in the time of normal height, and buoyancy aid is in suspended state, and transfusion is normally carried out, and medicinal liquid enters in pipeline below by infusion channel mouth 11.In the time that transfusion nearly completes, medicinal liquid liquid level declines in dropping funnel, buoyancy aid is along with liquid level declines and declines, until the sealing liquid part 10 of its underpart seals infusion channel mouth 11, medicinal liquid in pipeline is still in pipeline below, between buoyancy aid main part 8 outer walls and hard shell body 4A inwall, coordinate the axis that has ensured that buoyancy aid can not depart from dropping funnel, strengthen the reliability of sealing, make air can not enter into infusion channel mouth 11 infusion pipeline below, thereby prevented that air from entering in patient's body, the medicinal liquid being still in infusion pipeline has below stoped blood back.
Referring to accompanying drawing 3,4, the disposable use automatic liquid-stopping transfusion apparatus shown in second embodiment of this utility model, first embodiment is different from this utility model, and in second embodiment of this utility model, sealing liquid part 10 adopts silica gel to make; In relief valve mechanism, floating motion guiding has adopted coordinating of guide 7B and guide post 16.Guide 7B and hard shell body 4A are one-body molded, have medicinal liquid central passage 6 on guide 7B.In the time that transfusion nearly completes, medicinal liquid liquid level declines in dropping funnel, buoyancy aid is along with liquid level declines and declines, until the sealing liquid part 10 of its underpart seals infusion channel mouth 11, medicinal liquid in pipeline is still in pipeline below, guide 7B and the axis that has ensured that buoyancy aid can not depart from dropping funnel coordinating of guide post 16, strengthen the reliability of sealing, make air can not enter into infusion channel mouth 11 infusion pipeline below, thereby prevented that air from entering in patient's body, the medicinal liquid being still in infusion pipeline has below stoped blood back.
Referring to accompanying drawing 5,6, disposable use automatic liquid-stopping transfusion apparatus shown in the 3rd embodiment of this utility model, with first embodiment difference of this utility model, in the 3rd embodiment of this utility model, dropping funnel is made up of top soft-shell 4B and bottom hard shell body 5B; In relief valve, floating motion guiding has adopted coordinating of buoyancy aid main part 8 outer walls and bottom hard shell body 5B inwall; Needle for inserting bottle 1 separates molding with air filter 2; Increase medicinal liquid threeway 3B, air bleeding valve 3A has not been set; Locating part 7A and top soft-shell 4B, bottom hard shell body 5B separate molding.
Referring to accompanying drawing 7,8, the disposable use automatic liquid-stopping transfusion apparatus shown in the 4th embodiment of this utility model, with second embodiment difference of this utility model, dropping funnel is made up of top soft-shell 4B and bottom hard shell body 5B; Needle for inserting bottle 1 separates molding with air filter 2; Increase medicinal liquid threeway 3B, air bleeding valve 3A has not been set; Guide 7B and top soft-shell 4B, bottom hard shell body 5B separate molding.
Referring to accompanying drawing 11, this utility model the 5th, six, seven, eight embodiment are corresponding is respectively that with the difference of first, second, third and fourth embodiment L shaped groove 18 is arranged on sealing liquid part 10, forms thus the hole 9 that is communicated with buoyancy aid space outerpace and buoyancy aid main part 8 internal cavities.
This utility model also can divide dropping funnel and relief valve mechanism to be arranged, and corresponding adjustment medicinal liquid perforation order, is combined into some embodiment, no longer describes at this.
Above-mentioned drawings and Examples only, for this utility model is described, do not constitute any limitation protection domain of the present utility model.Certainly, under inventive concept of the present utility model, this utility model 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, 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 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 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 to patent protection request, its protection domain should comprise all variation patterns with above-mentioned technical characterstic.
Claims (5)
1. disposable use automatic liquid-stopping transfusion apparatus, comprise and sequentially connect the needle for inserting bottle arranging, dropping funnel, flexible pipe, liquid medicine filter and venoclysis needle, wherein be equipped with the flow regulator for controlling flow at hose overcoat, it also comprises that of being arranged in described dropping funnel or between flexible pipe and flexible pipe has the relief valve mechanism of mechanics flow control effect, this relief valve mechanism includes a housing, be arranged on the buoyancy aid main part that the inside in housing is cavity, this buoyancy aid main part bottom connects sealing liquid part and forms buoyancy aid, there is infusion channel mouth the lower end of housing, infusion channel mouth is positioned at the below of sealing liquid part, it is characterized in that: sealing liquid part has with buoyancy aid main part junction the hole that is communicated with buoyancy aid space outerpace and buoyancy aid main part internal cavities.
2. disposable use automatic liquid-stopping transfusion apparatus according to claim 1, is characterized in that: L shaped groove is arranged at described buoyancy aid main part bottom, and the hole of sealing liquid part and buoyancy aid main part junction is formed by above-mentioned L shaped groove.
3. disposable use automatic liquid-stopping transfusion apparatus according to claim 1, it is characterized in that: described sealing liquid part is barrel shaped structure, be nested with in buoyancy aid main part bottom, bucket wall is annulus post, drum head is disc-shaped diaphragm, above the inwall of bucket wall and drum head, there is groove, be communicated with into L shaped groove, form the hole that is communicated with buoyancy aid space outerpace and buoyancy aid main part internal cavities.
4. disposable use automatic liquid-stopping transfusion apparatus according to claim 3, is characterized in that: the peripheral thickness of the drum head of described sealing liquid part can be slightly larger than interior thickness.
5. according to the disposable use automatic liquid-stopping transfusion apparatus described in claim 2 or 4, it is characterized in that: described relief valve mechanism is arranged in described dropping funnel, described housing is dropping funnel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071249.7U CN203749922U (en) | 2014-02-17 | 2014-02-17 | Disposable automatic stop and infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071249.7U CN203749922U (en) | 2014-02-17 | 2014-02-17 | Disposable automatic stop and infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203749922U true CN203749922U (en) | 2014-08-06 |
Family
ID=51245230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420071249.7U Expired - Lifetime CN203749922U (en) | 2014-02-17 | 2014-02-17 | Disposable automatic stop and infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203749922U (en) |
-
2014
- 2014-02-17 CN CN201420071249.7U patent/CN203749922U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190905 Address after: 225300 West of Tai Road, Chengkou of Chinese Medicine, Taizhou City, Jiangsu Province, and East of Lujia Road, No. 66, Building G58, on the third floor Patentee after: Century Weiqi Medical Science and Technology Jiangsu Co.,Ltd. Address before: 225300 Room 505, 16 Blocks, Lianhua 4 District, Hailing District, Taizhou City, Jiangsu Province Patentee before: Qi Jian |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |