CN104998323B - It is a kind of to continue slow liquid dispensing apparatus and its installation method - Google Patents
It is a kind of to continue slow liquid dispensing apparatus and its installation method Download PDFInfo
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- CN104998323B CN104998323B CN201510424882.9A CN201510424882A CN104998323B CN 104998323 B CN104998323 B CN 104998323B CN 201510424882 A CN201510424882 A CN 201510424882A CN 104998323 B CN104998323 B CN 104998323B
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Abstract
Novel continue slow liquid dispensing apparatus and its installation and application method the present invention provides a kind of, including screwed union, band interface container, end cap, float, only liquid glue piece, reservoir and one or more layers hollow nanometer film, only liquid glue piece is fitted into float, from float and only, the interstitial hole of liquid glue piece passes through one or more layers hollow nanometer film and adhering and sealing is integrally fixed, float, only liquid glue piece and one or more layers hollow nanometer film are put into togerther in the interstitial hole of screwed union, end cap is Nian Jie with the raised end face of cylinder of screwed union integral, reservoir is sleeved on outside end cap and screwed union protrusion cylinder, the open end of reservoir is tightly fixed to screwed union, it screwed union and is welded as a whole with interface container, the present invention can be achieved long lasting for positive pressure, one time liquid feeding keeps barotropic state for a long time, liquid feeding can repeatedly be carried out, make to enter Blood in indwelling needle catheter slowly flows, and decreases the blood volume into conduit, prevents the generation of thrombus plugging afterwards.
Description
Technical field
The invention belongs to disposable medical instruments fields, persistently delay more particularly to one of delivery device is novel
Slow liquid dispensing apparatus and its installation and application method.
Background technique
Remaining needle is clinically widely used in a variety of applications at present, comparatively with traditional intravenous needle, main application valence
Value is to avoid repeatedly puncturing the pain and security risk for having patient.While remaining needle obtains doctors and patients' approval, indwelling
There is also other problems and risks for needle, and wherein thrombus plugging is main problem.For the generation of anti-tampon plugging, nurse is every 6-
8 hours primary with heparin liquid washing pipe, and making conduit again becomes unobstructed, then carries out positive pressure tube sealing with positive pressure devices, and positive pressure tube sealing
Also it is only capable of providing instantaneous positive pressure, the generation of thrombus plugging phenomenon cannot be prevented for a long time.It is precautionary measures that tube sealing is rushed in timing, cannot
Thrombosis is effectively prevented, it is still higher that plugging probability occurs.It clinically solves thrombus plugging method and generallys use syringe time
Sludged blood is drawn into syringe and is given up, while having lost part blood by the method for pumping.Remaining needle be not transfused
When, periodically rush tube sealing to prevent catheter blockage, has higher requirement to nurse's nursery work, increase the work of nurse
Intensity.
Summary of the invention
The present invention be directed to shortcomings existing for above-mentioned existing issue, propose a kind of solution, and remaining needle does not carry out
When infusion, using a kind of novel continuous action power for continuing slow liquid dispensing apparatus, generating greater than superficial vein pressure, endlessly
Slowly give liquid.
One kind is novel to be continued to be realized when the work of slow liquid dispensing apparatus long lasting for liquid, keeps the mesh of barotropic state
, so that the liquid retained in indwelling needle catheter is in flow regime, prevents blood from entering conduit, thus anti-tampon plugging situation
Generation.
To achieve the goals above, novel continue slow liquid dispensing apparatus, including screwed union, band the invention discloses a kind of
Interface container, end cap, float, only liquid glue piece, reservoir and one or more layers hollow nanometer film, only liquid glue piece is fitted into float,
From float and only, the interstitial hole of liquid glue piece passes through one or more layers hollow nanometer film and adhering and sealing is integrally fixed, and float stops
Liquid glue piece and one or more layers hollow nanometer film are put into togerther in the interstitial hole of screwed union, the protrusion circle of end cap and screwed union
Cylinder end face bonding is integral, and reservoir is sleeved on outside end cap and screwed union protrusion cylinder, and the open end of reservoir is tightly fixed
It is welded as a whole to screwed union, screwed union and with interface container.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, one or more layers hollow nanometer film is
Ultrafiltration membrane, wall thickness are 10-100 μm and aperture and one or more layers hollow nanometer film upper port hot melt of the wall equipped with 1-50nm
Closing together, makes liquid only be permitted to pass through from hollow nanometer film nano pore.Hollow nanometer film permeable amount is small, and ability of shutting off is high,
The function of positive pressure can be kept for a long time.Hollow nanometer film has nanoscale duct, and rejection is high, and can reach to external particulate matter has
The filtering of effect.
Have in the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, on the outside of reservoir open end compared with
Thick boss is tighter to cooperate with screwed union, prevents from leaking from cooperation place.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, reservoir wall thickness is relatively thin, and liquid feeding is swollen
Screen resilience is smaller after swollen, more slightly higher than vein pressure, guarantees safety in utilization.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, band interface container upper end is equipped with and note
The interface of emitter adaptation.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, screwed union, band interface container and
Reservoir uses transparent material, facilitates liquid feeding and observation liquid residual situation, facilitates clinical manipulation and monitoring.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, only liquid glue piece using soft and
Thin silica gel, top have a sphere structure and match integrator with float.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, have on screwed union protrusion cylinder
Elongate slots run through, convenient for liquid feeding and exhaust.
The novel installation method for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, comprising:
Step 1: only liquid glue piece is fitted into float, then by one or more layers hollow nanometer film from float and only liquid glue piece
Interstitial hole passes through, and adhering and sealing is integrally fixed with bonding agent；
Step 2: by float, only liquid glue piece and one or more layers hollow nanometer film are put into togerther the interstitial hole of screwed union
In, end cap is Nian Jie with the end face of screwed union protrusion cylinder integral；
Step 3: reservoir is sleeved on outside end cap and screwed union protrusion cylinder, with thermofussion welding by the open end of reservoir
It is tightly fixed together with screwed union；
It is combined into one Step 4: finally carrying out plastics by screwed union and with interface container and welding.
The novel application method for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, comprising:
Step 1: when empty syringe is inserted into the interface with interface container, air in suction belt interface container makes to store up
Liquid capsule is expanded by suction, and then so that the fluid hole of screwed union is sucked liquid and entered in reservoir, or going out from screwed union
The direct liquid feeding of fluid apertures；
Step 2: device is vertical, and screwed union is convenient for gas to be discharged upward during liquid feeding, float and only liquid glue piece
Float below water surface, by endcap support below float, pushes syringe that the gas in reservoir is discharged；
Step 3: pushing syringe after the completion of liquid feeding, float and only liquid glue piece are taken advantage of a situation with liquid by screwed union fluid hole
Block, remove syringe, the effect of reservoir elastic force only liquid glue piece can will be tightly attached on fluid hole, liquid only allow through one layer or
Multilayer hollow nanometer film passes through.
Beneficial effect
One kind provided by the invention is novel to continue slow liquid dispensing apparatus, effectively prevent the generation of thrombus plugging, avoids blood
Bolt plugging bring risk and inconvenience, to human body hurtless measure, eliminate the action that nurse rushes tube sealing, effectively mitigate nurse's
Working strength, while reducing nursing cost.Novel to continue slowly to the device convenient and reliable operation of liquid, security performance is high.It is real
It is not only applicable to remaining needle in the application of border, a variety of instruments (such as PICC conduit, CVC conduit, floating catheter) can also be cooperated to use,
Realize continuous positive pressure or persistently to the purpose of liquid.
Detailed description of the invention
Fig. 1 is the novel continuous positive pressure device liquid feeding pre-structure signal for continuing slow liquid dispensing apparatus of one kind disclosed by the invention
Figure；
Fig. 2 is structural representation after the novel continuous positive pressure device liquid feeding for continuing slow liquid dispensing apparatus of one kind disclosed by the invention
Figure；
Fig. 3 is one or more layers hollow nanometer film, float and the only assembly structure diagram of liquid glue piece in Fig. 1 and Fig. 2.
Specific embodiment
For that can further appreciate that the contents of the present invention, feature and effect, the following examples are hereby given, and cooperates attached drawing detailed
It is described as follows:
Fig. 1 is the novel continuous positive pressure device liquid feeding pre-structure signal for continuing slow liquid dispensing apparatus of one kind disclosed by the invention
Figure, as shown, the invention discloses it is a kind of it is novel continue slow liquid dispensing apparatus, be mainly characterized by utilizing hollow nanometer film
The property of low pass water is realized slowly to liquid, and the realization for guaranteeing continuous positive pressure to the power source of liquid is done using the elastic force of silica gel,
Including screwed union (01), band interface container (02), end cap (03), float (04), only liquid glue piece (05), reservoir (06) and one
Layer or multilayer hollow nanometer film (07), Fig. 3 are one or more layers hollow nanometer film, float and the only group of liquid glue piece in Fig. 1 and Fig. 2
Assembling structure schematic diagram, as shown in figure 3, only liquid glue piece (05) is fitted into float (04), one or more layers hollow nanometer film (07) from
Float (04) and the only interstitial hole of liquid glue piece (05) pass through and adhering and sealing be integrally fixed, as shown in Figure 1, float (04), only
Liquid glue piece (05) and one or more layers hollow nanometer film (07) are put into togerther in the interstitial hole (08) of screwed union (04), end cap
(03) Nian Jie with raised cylinder (09) end face of screwed union (01) integral, reservoir (06) is sleeved on end cap (03) and spiral
Outside, the open end of reservoir (06) is tightly fixed to screwed union (01) connector (01) protrusion cylinder (09), screwed union (01)
It is welded as a whole with band interface container (02).
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, one or more layers hollow nanometer film
It (07) is ultrafiltration membrane, wall thickness is 10-100 μm and aperture and one or more layers hollow nanometer film (07) of the wall equipped with 1-50nm
The closing of upper port hot melt together, makes liquid only be permitted to pass through from hollow nanometer film nano pore.Hollow nanometer film permeable amount is small, cuts
Stream ability is high, can keep the function of positive pressure for a long time.Hollow nanometer film has nanoscale duct, and rejection is high, can be to external micro-
Grain object reaches effective filtering.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, tool on the outside of reservoir (06) open end
There is thicker boss (10) tighter to cooperate with screwed union (01), prevent from leaking from cooperation place, when ensure that liquid feeding not
It can be leaked from the open end of reservoir (06) and cause adverse consequences.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, reservoir (06) wall thickness is relatively thin, adds
Screen resilience is smaller after liquid expansion, more slightly higher than vein pressure, guarantees safety in utilization.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, band interface container (02) upper end is equipped with
The interface (11) being adapted to syringe.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, screwed union (01), band interface hold
Device (02) and reservoir (06) use transparent material, facilitate liquid feeding and observation liquid residual situation, facilitate clinical manipulation and monitoring.
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, only liquid glue piece (05) is soft using quality
Soft and thin silica gel, top have a sphere structure (12) and match integrator with float (04).
In the novel embodiment for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, screwed union (01) protrusion cylinder
(09) on there are elongate slots (13) to run through, convenient for liquid feeding and exhaust.
As shown in figures 1 and 3, the novel installation method for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, comprising:
Step 1: only liquid glue piece (05) is fitted into float (04), then by one or more layers hollow nanometer film (07) from float
(04) and only the interstitial hole of liquid glue piece (05) passes through, and adhering and sealing is integrally fixed with bonding agent；
Step 2: by float (04), only liquid glue piece (05) and one or more layers hollow nanometer film (07) are put into togerther spiral
In the interstitial hole of connector (01), end cap (02) and the end face of the raised cylinder (09) of screwed union (01) are Nian Jie integral；
Step 3: reservoir (06) is sleeved on end cap (03) and the raised cylinder (09) of screwed union (01) outside, thermofussion welding is used
The open end of reservoir (06) and screwed union (01) are tightly fixed together；
It is combined into one Step 4: finally carrying out plastics by screwed union (01) and with interface container (02) and welding.
Fig. 2 is structural representation after the novel continuous positive pressure device liquid feeding for continuing slow liquid dispensing apparatus of one kind disclosed by the invention
Figure, as shown in Fig. 2, the novel application method for continuing slow liquid dispensing apparatus of one kind disclosed by the invention, comprising:
Step 1: when empty syringe is inserted into interface (11) with interface container (02), suction belt interface container (02)
In air, make reservoir (06) by suction expand, and then make screwed union (01) fluid hole (14) suck liquid enter
In reservoir (06), or fluid hole (14) direct liquid feeding from screwed union (01)；
Step 2: during liquid feeding, device is vertical, screwed union (01) is discharged upward convenient for gas, float (04) and
Only liquid glue piece (05) floats below water surface, is supported below float (04) by end cap (03), pushes syringe by reservoir (06)
In gas discharge；
Step 3: pushing syringe after the completion of liquid feeding, float (04) and only liquid glue piece (05) are taken advantage of a situation with liquid connects spiral
Head (01) fluid hole (14) is blocked, and syringe is removed, and the effect of reservoir (06) elastic force only liquid glue piece (05) can will be tightly attached to out
In fluid apertures (14), liquid only allows to pass through through one or more layers hollow nanometer film (07).
It is a kind of it is novel continue slowly to the device of liquid using medical macromolecular materials and silica gel material, no metal object exists,
Safety with higher does not hinder the use of some Medical Instruments using magnetic principle.
Finally, it should be noted that obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Other various forms of variations or variation out.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
Shen go out obvious changes or variations still in the protection scope of this explanation among.
Claims (9)
1. a kind of continue slow liquid dispensing apparatus, it is characterised in that: described device includes screwed union, band interface container, end cap, floats
Son, only liquid glue piece, reservoir and hollow nanometer film, the only liquid glue piece are fitted into the float, and the hollow nanometer film is from institute
The interstitial hole for stating float and the only liquid glue piece passes through and adhering and sealing is integrally fixed, the float, the only liquid glue piece and
The hollow nanometer film is put into togerther in the interstitial hole of the screwed union, the raised cylinder of the end cap and the screwed union
End face bonding is integral, and the reservoir is sleeved on outside the end cap and the screwed union protrusion cylinder, the reservoir
Open end is tightly fixed to screwed union, the screwed union and is welded as a whole with interface container.
2. a kind of according to claim 1 continue slow liquid dispensing apparatus, it is characterised in that: the hollow nanometer film is ultrafiltration
Film, wall thickness are 10-100 μm, and aperture and the hollow nanometer film upper port hot melt closing of the wall equipped with 1-50nm are together.
A kind of continue slow liquid dispensing apparatus 3. according to claim 1 or claim 2, it is characterised in that: outside the reservoir open end
Side has thicker boss tighter to cooperate with screwed union.
4. a kind of according to claim 1 continue slow liquid dispensing apparatus, it is characterised in that: the reservoir wall thickness is relatively thin, adds
Screen resilience is smaller after liquid expansion, more slightly higher than vein pressure.
5. a kind of according to claim 1 continue slow liquid dispensing apparatus, it is characterised in that: the band interface container upper end is equipped with
The interface being adapted to syringe.
6. a kind of according to claim 1 continue slow liquid dispensing apparatus, it is characterised in that: the screwed union, the band connect
Mouth container and the reservoir use transparent material, facilitate liquid feeding and observation liquid residual situation.
7. a kind of according to claim 1 continue slow liquid dispensing apparatus, it is characterised in that: the only liquid glue piece is soft using quality
Soft and thin silica gel, top have a sphere structure and match integrator with float.
8. a kind of according to claim 1 continue slow liquid dispensing apparatus, which is characterized in that on the screwed union protrusion cylinder
Run through with elongate slots, convenient for liquid feeding and exhaust.
9. a kind of installation method for continuing slow liquid dispensing apparatus, it is characterised in that: the described method includes:
Step 1: only liquid glue piece is fitted into float, then by hollow nanometer film from float and only the interstitial hole of liquid glue piece passes through, and is used in combination
Adhering and sealing is integrally fixed by bonding agent；
Step 2: by float, only liquid glue piece and hollow nanometer film are put into togerther in the interstitial hole of screwed union, end cap connects with spiral
The end face bonding of the raised cylinder of head is integral；
Step 3: reservoir is sleeved on outside end cap and screwed union protrusion cylinder, with thermofussion welding by the open end of reservoir and spiral shell
Rotary joint is tightly fixed together；
It is combined into one Step 4: finally carrying out plastics by screwed union and with interface container and welding.
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| CN201510424882.9A CN104998323B (en) | 2015-07-20 | 2015-07-20 | It is a kind of to continue slow liquid dispensing apparatus and its installation method |
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| CN201510424882.9A CN104998323B (en) | 2015-07-20 | 2015-07-20 | It is a kind of to continue slow liquid dispensing apparatus and its installation method |
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| CN104998323B true CN104998323B (en) | 2019-02-05 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10716915B2 (en) * | 2015-11-23 | 2020-07-21 | Mivi Neuroscience, Inc. | Catheter systems for applying effective suction in remote vessels and thrombectomy procedures facilitated by catheter systems |
| CN110613872A (en) * | 2019-10-31 | 2019-12-27 | 厦门大学嘉庚学院 | Remaining needle auxiliary device for preventing blood coagulation and working method thereof |
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|---|---|---|---|---|
| US5178610A (en) * | 1990-07-05 | 1993-01-12 | Nissho Corporation | Liquid infusion device |
| CN1211453A (en) * | 1997-06-19 | 1999-03-24 | 李荣奎 | Liquid medicine injection device |
| WO2002022189A1 (en) * | 2000-09-07 | 2002-03-21 | Leventon S.A. | Elastomeric pump |
| CN1899633A (en) * | 2006-07-21 | 2007-01-24 | 张亚平 | Needleless seal transfusion joint |
| CN103599580A (en) * | 2013-11-19 | 2014-02-26 | 苏州林华医疗器械有限公司 | Continuous positive pressure venous indwelling needle |
| CN203609712U (en) * | 2013-11-19 | 2014-05-28 | 苏州林华医疗器械有限公司 | Long catheter structure for intravenous indwelling needle |
| CN103845791A (en) * | 2014-03-13 | 2014-06-11 | 李宜 | Indwelling catheter trace slow-release transfusion device |
| CN204972518U (en) * | 2015-07-20 | 2016-01-20 | 北京伏尔特技术有限公司 | Novel last slow liquid of giving device |
-
2015
- 2015-07-20 CN CN201510424882.9A patent/CN104998323B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178610A (en) * | 1990-07-05 | 1993-01-12 | Nissho Corporation | Liquid infusion device |
| CN1211453A (en) * | 1997-06-19 | 1999-03-24 | 李荣奎 | Liquid medicine injection device |
| WO2002022189A1 (en) * | 2000-09-07 | 2002-03-21 | Leventon S.A. | Elastomeric pump |
| CN1899633A (en) * | 2006-07-21 | 2007-01-24 | 张亚平 | Needleless seal transfusion joint |
| CN103599580A (en) * | 2013-11-19 | 2014-02-26 | 苏州林华医疗器械有限公司 | Continuous positive pressure venous indwelling needle |
| CN203609712U (en) * | 2013-11-19 | 2014-05-28 | 苏州林华医疗器械有限公司 | Long catheter structure for intravenous indwelling needle |
| CN103845791A (en) * | 2014-03-13 | 2014-06-11 | 李宜 | Indwelling catheter trace slow-release transfusion device |
| CN204972518U (en) * | 2015-07-20 | 2016-01-20 | 北京伏尔特技术有限公司 | Novel last slow liquid of giving device |
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| CN104998323A (en) | 2015-10-28 |
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