CN102049076A - Disposable syringe microporous foam forming accessories - Google Patents
Disposable syringe microporous foam forming accessories Download PDFInfo
- Publication number
- CN102049076A CN102049076A CN 201010569915 CN201010569915A CN102049076A CN 102049076 A CN102049076 A CN 102049076A CN 201010569915 CN201010569915 CN 201010569915 CN 201010569915 A CN201010569915 A CN 201010569915A CN 102049076 A CN102049076 A CN 102049076A
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- CN
- China
- Prior art keywords
- microporous foam
- piston
- disposable syringe
- microporous
- foam forming
- 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.)
- Pending
Links
- 239000006260 foam Substances 0.000 title claims abstract description 29
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 23
- 230000015572 biosynthetic process Effects 0.000 claims description 20
- 238000005516 engineering process Methods 0.000 claims description 14
- 229920002521 macromolecule Polymers 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- 230000004071 biological effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 11
- 238000005187 foaming Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002861 polymer material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- -1 polypropylene Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229940127554 medical product Drugs 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Abstract
The invention relates to a disposable syringe microporous foam forming accessories. The syringe accessory piston and the core bar of the disposable syringe microporous foam forming accessories are high polymer composite products which are mainly made of high polymer material with better biological performance by the microporous foam forming process and take gas as filler; the piston and the core rod contain microporous bubbles, the micropores of microporous bubbles are sealed micropores of which the diameters range from a dozen micrometers to several tens of thousands of micrometers. The microporous foam forming process is adopted by the accessory, a foaming body contains a large quantity of bubbles, and the processed piston and core rod are high polymer composite products taking gas as the filler; and the high polymer composite products have reasonable components, are prepared by simple product process and have high quality and low cost, the consumption of the raw materials can be reduced, production energy can be saved, discharge of the waste can be reduced, the effects of saving energy and protecting environment are achieved.
Description
Technical field
The present invention relates to a kind of disposable use medical treatment consumptive materials, specifically a kind of disposable syringe microporous foam formation accessory.The particularly syringe piston of microporous foam formation, core bar.
Background technology
We know that disposable syringe is made up of overcoat, core bar, piston, needle assembly.Piston and core bar are the main accessories of disposable syringe.Syringe piston material on the domestic and international market is rubber and thermoplastic elastomer (TPE) basically at present, and the piston bar material is polypropylene and polyethylene basically, and their production moulding process is sulfuration die cast or injection mo(u)lding.It mainly contains following deficiency: complex manufacturing, cost height, quality are wayward, die cast or injection mo(u)lding raw material consumption are many.Particularly rubber, thermoplastic elastic material biological property are bad.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of composition reasonable, production technology is simple, with low cost, product processed quality height, can reduce raw-material use, save the disposable syringe microporous foam formation accessory of producing the energy and reducing discharging wastes.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: disposable syringe microporous foam formation accessory, it is characterized in that: syringe accessory piston and core bar are to be main material with the good macromolecular material of biological property, what employing microporous foam formation technology was processed into is the macromolecule joint product of filler with gas, the micropore bubble is contained in piston and core bar inside, the aperture of said micropore bubble is from tens microns to several ten thousand microns closed porosity, and macromolecular material is the basic framework of micropore bubble.
The said main material of the present invention comprises plastics and rubber two classes, and the plastics class can be polypropylene, polyethylene, polyurethane, Merlon, polrvinyl chloride etc., and rubber-like can be natural rubber, synthetic rubber, latex, silica gel etc.
The said piston face Shao Er of the present invention A type hardness tester is 45～80, and piston compression set is less than 55%.
Core bar of the present invention surface Shao Er A type hardness tester is 55～110.
The present invention adopts the microporous foam formation technology, contain a large amount of bubbles in the foaming body, against existing technologies, piston that the present invention is processed into and core bar are to be the macromolecule joint product of filler with gas, and it is formed rationally, and production technology is simple, product processed quality height, cost is low, can reduce raw-material use, saves and produces the energy and reduce discharging wastes.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is piston, the inner partial cross section of the core bar enlarged diagram of microporous foam formation of the present invention.
Fig. 2 is a piston structure sketch map of the present invention.
Fig. 3 is a core bar structure sketch map of the present invention.
1. micropore bubble, 2. main materials among the figure.
The specific embodiment
Disposable syringe is made up of overcoat, core bar, piston, needle assembly.Piston and core bar are the main accessories of disposable syringe.As Fig. 2, shown in Figure 3.
Disposable syringe accessory piston of the present invention and core bar are to be main material 2 with the good macromolecular material of biological property, what employing microporous foam formation technology was processed into is the macromolecule joint product of filler with gas, a large amount of micropore bubbles 1 are contained in piston and core bar inside, and the aperture of said micropore bubble 1 is from tens microns to several ten thousand microns closed porosity.Main material 2 macromolecular materials are basic frameworks of micropore bubble.As shown in Figure 1.
The present invention is for saving material, simplify production technology, reducing cost etc., adopted on the market very ripe but on the infusion class medical product from an original novel forming technology---microporous foam formation technology.The microporous foam technology is meant with the macromolecular material to be matrix, by special processing technique, makes the goods intermediate layer gather size from ten to several ten thousand microns closed porosity.Microporous foam formation technological break-through many limitations of traditional forming technique, the microporous foam macromolecule is to be solvent foaming with the polymer, in the foaming body and contain a large amount of bubbles, so foaming body also to can be described as with gas be the polymer composite of filler.
The said main material of the present invention comprises plastics and rubber two classes, and the plastics class can be polypropylene, polyethylene, polyurethane, Merlon, polrvinyl chloride etc., and rubber-like can be natural rubber, synthetic rubber, latex, silica gel etc.
The present invention adopts the MICROCELLULAR FOAM POLYMER MATERIALS forming technique, a large amount of micropore bubbles 1 is contained in piston, core bar product inside, the micropore bubble is a diameter from tens microns to several ten thousand microns closed porosity, therefore we can say that also piston of the present invention, core bar are is the macromolecule joint product of filler with gas.
The said piston smooth in appearance of the present invention, the outer surface of the contact medicinal liquid face in syringe does not have obvious bubble, the impermeable medicinal liquid of piston; Piston face Shao Er A type hardness tester is 45-80, and piston compression set is less than 55%, and said compression set condition is: 40 ° of C ± 1 ° C of temperature, compression time: 120～150 hours; Piston also needs following process to handle behind microporous foam formation, as side cut, milling, cleaning, silication etc.Following process such as microporous foam formation technology of the present invention and side cut, milling, cleaning, silication are handled and are belonged to existing prior art, repeat no more.
Core bar of the present invention surface Shao Er A type hardness tester is 55～110, and core bar also needs following process to handle behind microporous foam formation, as side cut, milling, cleaning etc.
Other accessory of syringe of the present invention also can pass through the foaming processing and fabricating, also has other medical product accessory also can adopt the macromolecular material foaming.Macromolecular material has a lot of superior foam characteristics, and the macromolecular material foam process is simple, can the fine designer of satisfying design needs after the macromolecular material foaming.
The present invention adopts the microporous foam formation technology, contain a large amount of bubbles in the foaming body, piston that is processed into and core bar are to be the macromolecule joint product of filler with gas, it is formed rationally, production technology is simple, product processed quality height, and cost is low, can reduce raw-material use, save and produce the energy and reduce discharging wastes.
More than explanation only illustrates the present invention's usefulness, but not limitation of the present invention, technical staff in the relevant field, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion and modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (4)
1. disposable syringe microporous foam formation accessory, it is characterized in that: described syringe accessory piston and core bar are to be main material with the good macromolecular material of biological property, what employing microporous foam formation technology was processed into is the macromolecule joint product of filler with gas, a large amount of micropore bubbles are contained in piston and core bar inside, the aperture of micropore bubble is from tens microns to several ten thousand microns closed porosity, and macromolecular material is the basic framework of micropore bubble.
2. disposable syringe microporous foam formation accessory according to claim 1 is characterized in that: described main material comprises plastics and rubber two classes.
3. disposable syringe microporous foam formation accessory according to claim 1 is characterized in that: described piston face Shao Er A type hardness tester is 45～80, and piston compression set is less than 55%.
4. disposable syringe microporous foam formation accessory according to claim 1 is characterized in that: described core bar surface Shao Er A type hardness tester is 55～110.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010569915 CN102049076A (en) | 2010-12-02 | 2010-12-02 | Disposable syringe microporous foam forming accessories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010569915 CN102049076A (en) | 2010-12-02 | 2010-12-02 | Disposable syringe microporous foam forming accessories |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102049076A true CN102049076A (en) | 2011-05-11 |
Family
ID=43954089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010569915 Pending CN102049076A (en) | 2010-12-02 | 2010-12-02 | Disposable syringe microporous foam forming accessories |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102049076A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282257A (en) * | 1997-11-12 | 2001-01-31 | 美国3M公司 | Orthopedic support material containing silicate |
| CN1430548A (en) * | 2000-05-25 | 2003-07-16 | 特瑞赛尔公司 | Polymer foam processing with low blowing agent levels |
| US7407498B2 (en) * | 2003-09-02 | 2008-08-05 | Boston Scientific Scimed, Inc. | Construction of medical components using gas assisted microcellular foaming |
-
2010
- 2010-12-02 CN CN 201010569915 patent/CN102049076A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282257A (en) * | 1997-11-12 | 2001-01-31 | 美国3M公司 | Orthopedic support material containing silicate |
| CN1430548A (en) * | 2000-05-25 | 2003-07-16 | 特瑞赛尔公司 | Polymer foam processing with low blowing agent levels |
| US7407498B2 (en) * | 2003-09-02 | 2008-08-05 | Boston Scientific Scimed, Inc. | Construction of medical components using gas assisted microcellular foaming |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110511 |