CN1443578A - Micro-transfusion core made of plastics and transfusion tube for mounting said transfusion core - Google Patents
Micro-transfusion core made of plastics and transfusion tube for mounting said transfusion core Download PDFInfo
- Publication number
- CN1443578A CN1443578A CN 02126498 CN02126498A CN1443578A CN 1443578 A CN1443578 A CN 1443578A CN 02126498 CN02126498 CN 02126498 CN 02126498 A CN02126498 A CN 02126498A CN 1443578 A CN1443578 A CN 1443578A
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- drop
- drop core
- core
- inner chamber
- plastics system
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
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Abstract
The object of the present invention is to provide a dripping wick for microdose which is made of a plastic having a needle-like plastic tip and is fitted with the dripping wick for microdose to make dripping intervals further uniform, and to provide a dripping cylinder fitted with the dripping wick. The dripping wick made of the plastic is integrally molded with a dripping wick segment and a needle-like plastic tip segment, in which the shapes of the lumen wall surfaces of the needle-like plastic tip segment and the tip segment are configured to expand divergently to the upward and downward directions, respectively, from the intermediate portion of the lumen.
Description
Technical field
The present invention relates to the drop tube of a kind of plastics system drop core and installation drop core, have integrally formed plastics drop core of drop core segment and needle tubing shape plastic top end parts and the integrally formed lid of this plastics system drop core.
Technical background
For the drop tube, the micro-drop tube of the 60/ml that the specific use that the drop tube of 15～20 common/ml is arranged and use for the child and drop into micro-medicament is used, in the prior art, as shown in Figure 1, core pipe 11 is connected with needle tubing shape drop core 14 by covering 12 tops that are connected drop tube 13 on this core pipe 11.
Trace drop tube for the drop of the drop tube that makes aforementioned common usefulness is small, adopts the needle tubing shape metal droplet core of internal diameter 0.6mm as the drop core.But because recent garbage problem, the importance of discarded respectively all plastics of not wanting trace drop cores has increased, so, the importance of the drop core plastic of aforementioned micro-drop tube is increased.
Micro-drop tube as drop core plastic, for example, adopt the lid of the drop tube that ABS resin makes and drop core known with the drop core with the be bonded together trace made of solvent, but because use solvent in manufacture process, problems such as the pollution and the manufacturing process of manufacturing environment is many, cost height exist.
The inventor provides a kind of and the micro-lid with the drop core of plastics system that needle tubing shape plastics are vertical and the drop core is integrally formed is arranged for solving foregoing problems.(patent application 2000-32007).
Aforementioned trace drop core, its flow is to regulate by trace, but what require each is uniform at interval, therefore, the purpose of this invention is to provide trace with the drop core and this trace drop tube with the drop core is installed, solve the at interval uniform problem of each alleged drop with the drop core so that the vertical plastics system trace of needle tubing shape plastics to be arranged.
Summary of the invention
First point of the present invention, a kind of plastics system trace drop core is provided, its drop core segment and and needle tubing shape plastic top end parts be integrally formed as plastics drop core, the shape that it is characterized in that inner chamber (the being designated hereinafter simply as inner chamber) wall of needle tubing shape plastic top end parts and drop core, for from the pars intermedia of this inner chamber direction expanded configuration gradually up and down, can solve aforesaid problem on the effect.
About the internal diameter of the pars intermedia of aforementioned inner chamber, for solving problem of the present invention, than the little 0.005～0.2mm of internal diameter of aforementioned upper and lower end parts, be preferably little 0.01～0.2mm, little 0.01～0.03mm is better.
In addition, the wall of aforementioned inner chamber, the R portion (ア one Le portion) that forms pars intermedia with inner chamber and be the top is for well.Have, the pars intermedia of aforementioned inner chamber is not meant the centre of inner chamber strictness again, as (b) of Fig. 3 and (c) than strict centre up and down direction move that some are also passable.
In addition, the aforementioned plastics system trace of the present invention drop core refers to 54～66/ml, for example 60/ml.
Plastics system trace of the present invention second is used the drop core, as shown in Figure 4, aforementioned first the described plastics system trace drop core and the micro-integrally formed lid of lid with the drop core of plastics system that are made of drop core segment and needle tubing shape plastic top end parts is arranged.The integrally formed plastics system trace of this drop core and the lid lid of drop core because the integrally formed solvent that do not use of drop core and lid engages, does not exist so aforementioned use solvent engages the problems of generation yet.
Thirdly of the present invention, be equipped with aforementioned first or second described plastics system trace with the drop tube of drop core.
In the aforementioned invention, adopt vistanex at the 1st～the 3rd as the material of plastics, especially with the polypropylene in the polyolefin for well.
Be provided with core shift at the vertical peristome of needle tubing shape plastics, when drop drips, produce imbalance, unbalanced influence when drop being dripped because of the core shift generation of peristome, acrylic resin is than other resin, ABS resin for example, influence is little, so polypropylene is good especially.
In aforementioned the 1st～the 3rd invention, the internal diameter of the opening part of the vertical dropping liquid of needle tubing shape plastics part is that the degree of 0.6 ± 0.2mm is for well.In this case, the total length of drop core segment and needle tubing shape plastic top end parts is 5～20mm, in view of the above, reach the interval of even dropping liquid, aforementioned total length is when being lower than 5mm, and evenly the interval of dropping liquid can not fully reach, when total length surpassed 20mm, formability is difficulty just.
Under the situation of internal diameter less than 0.6 ± 0.2mm of the opening part of the vertical dropping liquid part of aforementioned needle tubing shape plastics, the material of plastics adopts the occasion of vistanex, the size of the external diameter decision drop at the vertical lower ending opening of needle tubing shape plastics place, the inventor thinks, the outside dimension at the vertical lower ending opening of needle tubing shape plastics place is 0.9 ± 0.2mm for well.
In aforementioned the 1st～the 3rd invention, the total length of drop core segment and needle tubing shape plastic top end parts is 5～20mm, the internal diameter of the opening part of the vertical dropping liquid of preferably 9～13mm scope, and needle tubing shape plastics part is 0.6 ± 0.2mm, and external diameter is 0.9 ± 0.2mm for well.
According to afore-mentioned, be the evenly interval condition formation of dropping liquid, the total length of aforementioned drop core segment and needle tubing shape plastic top end parts is 5～20mm scope for well, but when the total length of drop core segment and needle tubing shape plastic top end parts when 5mm is above, when lid and the integrated situation in needle tubing shape plastics top, the problem in shapings such as needle tubing shape plastic top end parts generation contraction (ヒ ケ).The inventor, the result who carries out all discussions about this point, the drop core segment vertically at least a portion the outwards outstanding muscle of several symmetries is set, the problem in the aforementioned shaping can be resolved.Figure 2 shows that above-mentioned a plurality of muscle C, the shape of this muscle diameter is from top to bottom dwindled gradually, and the problem in the aforementioned shaping can be resolved.
Description of drawings
The formation of the drop tube in Fig. 1-past and this drop tube and core pipe connection status sketch map.
The profile of the drop core segment of the aforementioned needle tubing shape of Fig. 2-formation inner chamber and needle tubing shape plastic top end parts.
Fig. 3-aforementioned inner chamber profile.
The whole profile of the drop core of the lid of Fig. 4-have cover, drop core segment and the integrally formed formation of needle tubing shape plastic top end parts.
The specific embodiment
Below, based on Fig. 2, embodiments of the invention are described.
Embodiment 1
The outside of the wall portion 25 of drop core segment is provided with several muscle C, and shape diameter is from top to bottom dwindled gradually, because the formation of aforementioned several muscle C will have good spinning off to good with it from mould.Have again, the shape of inner chamber wall, be in the two ends hole enlargement gradually up and down respectively of the pars intermedia E place of this inner chamber, the internal diameter of the pars intermedia E of said inner chamber, internal diameter than other parts is little, and the wall of inner chamber is the inner chamber pars intermedia that R portion, the R of this R portion are formed on the top, be 560～840 degree, the degree with 700 is for well.Have again, needle tubing shape plastic top end B, near the shape of the outside wall surface 26 its peristome, with perpendicular shape shown in Figure 2 for well.Just, till the peristome of aforementioned needle tubing shape plastic top end B, form tapering, because manufacturing engineering, can not control at the external diameter and the wall thickness of the occasion peristome of molding bad (being commonly referred to as " contractions ") generation.Capillary influence due to its result, above-mentioned reason, the size of drop is unstable, the control difficulty of flow.But, form vertical configuration near the peristome of aforementioned top ends B, though it is bad to take place to be shaped, can be controlled in the external diameter influence of wall thickness of peristome.
Embodiment 2
One of feature of the present invention is the pattern of needle tubing shape plastic top end parts and drop core segment cavity shape, (a)～(d) form as shown in Figure 3 of giving an example.
Among Fig. 3, pars intermedia dots, (a) shown in the pars intermedia of inner chamber formed R portion, (b) shown in inner chamber upwards form R portion from pars intermedia, (c) shown in inner chamber form R portion downwards from pars intermedia, (d) shown in the pars intermedia of inner chamber do not form R portion.
Have again, the wall smoothness of inner chamber is high, and to reach purpose of the present invention better, and the smoothing of the wall of this inner chamber is when the making of drop core segment A and needle tubing shape plastic top end parts B, wall to inner chamber grinds with grinding agent, and for example the abrasive cloth with 1000# grinds.
Embodiment
Below in conjunction with embodiment to specific description of the present invention.
Embodiment 1
According to shown in Figure 2, the drop core of present embodiment is made up of drop core segment A and needle tubing shape plastic top end parts B, is formed by vistanex.The length 5.0mm of the part of dripping of needle tubing shape plastic top end parts B, the internal diameter 0.5mm of peristome, the external diameter 0.9mm of peristome.
Have, the total length that is formed on drop core segment and needle tubing shape plastic top end parts B of muscle C is 11.5mm again.Be provided with 4 muscle C in the present embodiment, the shape of this muscle is cone-shaped undergauge from top to bottom.
Inner chamber 27 forms the pars intermedia E of internal diameter size minimum in the position of the opening portion 5.24mm of distance needle tubing shape plastic top end parts B, the internal diameter size of this pars intermedia E is 0.48mm, from the two ends hole enlargement gradually up and down respectively of this position.
The effect of invention:
1. the trace that provides has solved the dropping liquid problem of non-uniform with the drop core.
2. because not using solvent integrally formed with the drop core of needle tubing shape plastic top end parts and lid, Therefore, follow the problem of using solvent to bring not exist.
3. the peristome internal diameter of the part of dripping of needle tubing shape plastic top end parts is 0.6 ± 0.2, all Even interval of dripping forms.
4. the optimum size of drop core and needle tubing shape plastic top end parts is 5～20mm, does not take place Shrink and can needle tubing shape plastics top and lid integrally formed.
Claims (10)
1. plastics system trace drop core, the drop core segment and and needle tubing shape plastic top end parts integrally formed, the shape that it is characterized in that the inner chamber wall of this needle tubing shape plastic top end parts and head portion is from the pars intermedia of this inner chamber direction shape of hole enlargement gradually up and down.
2. the plastics system trace drop core of putting down in writing according to claim 1 is characterized in that the wall of aforementioned inner chamber pars intermedia forms R portion, and
The internal diameter of the pars intermedia of aforementioned inner chamber is littler than the internal diameter of other part inner chambers.
3. the plastics system trace drop core of being put down in writing according to claim 1 or 2 is characterized in that the R of aforementioned R portion is 560～840.
4. according to any the plastics system of putting down in writing trace drop core in the claim 1～3, the total length that it is characterized in that aforementioned drop core segment and needle tubing shape plastic top end parts is 5～20mm, and the internal diameter of the opening part of the vertical dropping liquid part of needle tubing shape plastics is 0.6 ± 0.2 mm, and external diameter is 0.9 ± 0.2mm.
5. according to any plastics system of putting down in writing trace drop core in the claim 1～4, it is characterized in that the internal diameter of the pars intermedia of aforementioned inner chamber, than the little 0.01～0.2mm of internal diameter of the upper and lower end parts of inner chamber.
6. according to any the plastics system of putting down in writing trace drop core in the claim 1～5, it is characterized in that plastic material adopts vistanex.
7. according to any the plastics system of putting down in writing trace drop core in the claim 1～6, it is characterized in that at least a portion of drop outer core, being provided with several outwards outstanding muscle of symmetry vertically.
8. according to any plastics system of putting down in writing trace drop core in the claim 1～7, it is characterized in that being shaped as from the top of drop core segment of above-mentioned muscle to bottom diameter reduction gradually.
9. according to any the plastics system of putting down in writing trace drop core in the claim 1～8, it is characterized in that this drop core and vinyl cover are integrally formed.
10. according to any the plastics system of putting down in writing trace drop core in the claim 1～9, it is characterized in that this drop core is contained in the drop tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002066335A JP4085660B2 (en) | 2002-03-12 | 2002-03-12 | Plastic micro infusion core and infusion cylinder equipped with an infusion core |
| JP2002066335 | 2002-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1443578A true CN1443578A (en) | 2003-09-24 |
| CN1275659C CN1275659C (en) | 2006-09-20 |
Family
ID=28034894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02126498 Expired - Fee Related CN1275659C (en) | 2002-03-12 | 2002-07-23 | Micro-transfusion core made of plastics and transfusion tube for mounting said transfusion core |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4085660B2 (en) |
| CN (1) | CN1275659C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341225A (en) * | 2013-07-19 | 2013-10-09 | 北京伏尔特技术有限公司 | Novel dripping core for children |
| CN103405822A (en) * | 2013-08-14 | 2013-11-27 | 北京伏尔特技术有限公司 | Drip core for children |
| CN108744152A (en) * | 2018-07-09 | 2018-11-06 | 程其明 | Infusion apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6432690B2 (en) * | 2015-09-11 | 2018-12-05 | 株式会社村田製作所 | Infusion device |
| JP6787408B2 (en) | 2016-11-30 | 2020-11-18 | 株式会社村田製作所 | Nozzle for drip tube and drip tube |
| JP2021037062A (en) * | 2019-09-02 | 2021-03-11 | 誠 菊池 | Dropping injection device of liquid |
-
2002
- 2002-03-12 JP JP2002066335A patent/JP4085660B2/en not_active Expired - Fee Related
- 2002-07-23 CN CN 02126498 patent/CN1275659C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341225A (en) * | 2013-07-19 | 2013-10-09 | 北京伏尔特技术有限公司 | Novel dripping core for children |
| CN103341225B (en) * | 2013-07-19 | 2016-05-04 | 北京伏尔特技术有限公司 | Novel children is with dripping core |
| CN103405822A (en) * | 2013-08-14 | 2013-11-27 | 北京伏尔特技术有限公司 | Drip core for children |
| CN103405822B (en) * | 2013-08-14 | 2015-07-08 | 北京伏尔特技术有限公司 | Drip core for children |
| CN108744152A (en) * | 2018-07-09 | 2018-11-06 | 程其明 | Infusion apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1275659C (en) | 2006-09-20 |
| JP2003260135A (en) | 2003-09-16 |
| JP4085660B2 (en) | 2008-05-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060920 Termination date: 20100723 |