CN107815078A - Medical composite and the disposable syringe of preparation - Google Patents
Medical composite and the disposable syringe of preparation Download PDFInfo
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- CN107815078A CN107815078A CN201711075742.0A CN201711075742A CN107815078A CN 107815078 A CN107815078 A CN 107815078A CN 201711075742 A CN201711075742 A CN 201711075742A CN 107815078 A CN107815078 A CN 107815078A
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- Prior art keywords
- antioxidant
- pla
- composite
- rare earth
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials For Medical Uses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Chemistry (AREA)
Abstract
The present invention relates to medical composite and the disposable syringe of preparation.It is specifically a kind of medical degradable composite material, it contains PLA（PLA), toughener and antioxidant, wherein every 100 parts by weight PLA（PLA) containing 10 50 parts of toughener, 01 parts of antioxidant.The whole blend components of the present invention are medical grade non-toxic product, its synthon and corresponding polymer are to human body totally nontoxic, water and carbon dioxide can be degraded to automatically in 46 months under composting conditionses, small molecule plasticizer is free of in blending resin, such compound will not occur and separate out, pollute decoction and enter the danger of human body.It can be as the PP Pipe Compound of disposable degradable syringe, for preparing disposable degradable syringe.Material property in terms of antibacterial, degraded is substantially better than pure polylactic acid raw material.Inventive formulation rationally, it is stable performance, free from environmental pollution, can produce in enormous quantities in cleaning shop.
Description
Technical field
The present invention relates to a kind of high polymer material, the medical degradable syringe of specifically a kind of blending and modifying, which is used, to be gathered
Lactic acid composite, and the syringe prepared.
Background technology
China medical macromolecular materials product development starts late, just develop the 1970s disposable transfusion device,
The product such as syringe and plastic blood bag, at present disposable syringe base material generally given up using material, this kind of syringe such as polypropylene
It can not voluntarily be degraded after abandoning, pollute environment, endanger the health of people.Common centralized burning destroys method, not only can not be real
Existing resources circulation recycles, and can aggravate environmental pollution.Driven by interests, discarded syringe is illegal sharp again by criminal
With the medical hidden danger such as cross-infection can be produced.So the disposable medical infusion apparatus of exploitation fully biodegradable is carved and not allowed
It is slow.
The fusing point of PLA is higher（175 °C), its physical property is between PET (poly terephthalic acid class plastics）And PA-6
(nylon plastic(s)）Between, crystallinity is big, excellent transparency, has good solvent resistance, protection against the tide, grease resistance, gas permeability, also has
Certain fungus resistance, anti-flammability and ultraviolet-resistent property.PLA（PLA) there is excellent biocompatibility, biodegradability, gather
Lactic acid also has preferable processing characteristics, can be suitably used for the processing methods such as traditional extrusion, injection, blowing, poly-lactic acid material
Can and processing characteristics Shortcomings, it is mainly more crisp, and existing poly-lactic acid material is significantly improved sky in terms of sterilization
Between.
The content of the invention
The technical problems to be solved by the invention are to overcome above-mentioned the deficiencies in the prior art, there is provided one kind formula is reasonable, property
Can be stable, bactericidal property is good, and degradation speed is fast, the disposable syringe that can produce in enormous quantities in cleaning shop with it is medical can
Degrading composite, and the syringe prepared.
The present invention solves the technical scheme that above-mentioned technical problem uses：A kind of medical degradable composite material, its feature
It is：Contain PLA（PLA), toughener and antioxidant, wherein every 100 parts by weight PLA（PLA toughener 10-50) is contained
Part, antioxidant 0-1 parts.
Toughener of the present invention is thermoplastic elastomer (TPE), can be thermoplastic polyurethane（) or phenylethylene thermoplastic TPU
Property elastomer (SEBS or SBS).
Described antioxidant is selected from phenolic antioxidant and/or phosphite ester kind antioxidant
Further, described antioxidant packages contain antioxidant 1010 and irgasfos 168.
Further, rare earth element is contained in described degradable composite material, it is dilute on the basis of the weight of composite
Soil unit cellulose content is 50ppm-10000ppm.Preferably, rare earth element content is 100-5000ppm, is more highly preferred to, rare earth member
Cellulose content is 500-1600ppm.In one of embodiment, rare earth element content is 100ppm, one embodiment in addition
In, rare earth element content is 200ppm, and in one embodiment in addition, rare earth element content is 300ppm.Secondly, rare earth element
Content can also be 500ppm, 800ppm, 1000ppm, 1500ppm.
Described rare earth element includes cerium, lanthanum etc., is provided by the compound containing rare earth element, optionally there is cerous nitrate, nitre
Sour cerium ammonium, ceria, cerium dichloride, lanthana, lanthanum acetate, lanthanum carbonate, cerium lanthanum compound can be used alone, and can also answer
With use.
Rare earth element has good antibiotic property and mildew resistance.The addition of rare earth element can cause the composite to have
Excellent antibacterial effect, but moreover, we have surprisingly found that, and the addition of rare earth element can also improve the degradability of material
Can, it is possible to reduce about 10 days degradation times, this for reduce discarded object accumulation be highly beneficial.
In addition, the present invention also provides a kind of disposable medical syringe, it is prepared by above-mentioned degradable material.
The method that syringe is prepared for degradable material is not limited, and method generally in the art may be selected, such as note
Shaping, extrusion molding etc. are penetrated, is preferably injection moulded.
Beneficial effects of the present invention：
The present invention selects the PLA of proper ratio（PLA), toughener, and be prepared can for the rare earth element for adding appropriate level
Degrading composite.Toughener thermoplasticity elastomer（TPU or SEBS or SBS), using its crazing-shear band toughening mechanism,
Improve the toughness of material.Antioxidant can prevent thermo-oxidative ageing in process, so as to ensure the performance of composite.Rare earth member
The addition of element can improve the antibiotic property of composite, and be found surprisingly that and can improve degradation property.The composite processing
Process is simple, practical, can be applied to manufacture disposable degradable syringe.
The present invention is with PLA（PLA) be material of main part medical degradable composite material, the composite it is main
Feature is：Whole blend components are medical grade non-toxic product, its synthon and corresponding polymer to human body totally nontoxic,
Water and carbon dioxide can be degraded to automatically in 4-6 under composting conditionses months, small molecule plasticizer is free of in blending resin, will not
Such compound occurs and separates out, pollute decoction and enter the danger of human body.It can be as disposable degradable syringe
PP Pipe Compound, for preparing disposable degradable syringe.It is fast that disposable syringe voluntarily destroys speed, solves useless modeling
The pollution problem of material, disposable syringe is set to be really achieved disposable purpose.The material is in terms of antibacterial, degraded
Property is substantially better than pure polylactic acid raw material.Inventive formulation rationally, it is stable performance, free from environmental pollution, being can be large quantities of in cleaning shop
Amount production, the PP Pipe Compound suitable for making a one-time use only degradable syringe.
Embodiment
With reference to embodiment, the invention will be further described：
A kind of medical degradable composite material of the present invention, a kind of medical degradable composite material, it is characterized in that：Contain PLA
（PLA), toughener and antioxidant, wherein every 100 parts by weight PLA（PLA) containing toughener 10-50 parts, antioxidant 0-1 parts.
Toughener of the present invention is thermoplastic elastomer (TPE), can be thermoplastic polyurethane（) or phenylethylene thermoplastic TPU
Property elastomer (SEBS or SBS).
Described antioxidant is selected from phenolic antioxidant and/or phosphite ester kind antioxidant
Further, described antioxidant packages contain antioxidant 1010 and irgasfos 168.
Further, rare earth element is contained in described degradable composite material, it is dilute on the basis of the weight of composite
Soil unit cellulose content is 50ppm-10000ppm.Preferably, rare earth element content is 100-5000ppm, is more highly preferred to, rare earth member
Cellulose content is 300-2000ppm.In one of embodiment, rare earth element content is 100ppm, one embodiment in addition
In, rare earth element content is 200ppm, and in one embodiment in addition, rare earth element content is 300ppm.Secondly, rare earth element
Content can also be 500ppm, 800ppm, 1000ppm, 1500ppm.
Described rare earth element includes cerium, lanthanum etc., is provided by the compound containing rare earth element, optionally there is cerous nitrate, nitre
Sour cerium ammonium, ceria, cerium dichloride, lanthana, lanthanum acetate, lanthanum carbonate, cerium lanthanum compound can be used alone, and can also answer
With use.
Various embodiments of the present invention are formulated various raw materials and are well mixed, and are then granulated in double-screw extruding pelletizing machine, will be upper
State premix to be transported in double screw extruder, obtain composite, and test respective performances index.Then in 100,000 grades of purifications
Injection molding is carried out on injection machine in workshop, obtains product.Resulting product uniform color, outward appearance are good.
Embodiment 1：
100 parts of PLA, 10 parts of SEBS, 0.5 part of antioxidant are weighed in proportion, add ceria so that rare earth element content
For 300ppm, 5min is blended using high speed agitator, mixed material is added in double-screw extruding pelletizing machine and is granulated, cools down, cuts
Grain, carries out testing its mechanical property, anti-microbial property and degradation property to obtained material.
Embodiment 2：
Weigh 100 parts of PLA, 20 parts of SEBS, 0.5 part of antioxidant in proportion, add cerous nitrate so that rare earth element content is
500ppm, 5min is blended using high speed agitator, mixed material is added in double-screw extruding pelletizing machine and is granulated, cools down, pelletizing,
Obtained material is carried out testing its mechanical property, anti-microbial property and degradation property.
Embodiment 3：
100 parts of PLA, 30 parts of SEBS, 0.5 part of antioxidant are weighed in proportion, add cerium dichloride, lanthana so that rare earth
Constituent content is 800ppm, and 5min is blended using high speed agitator, mixed material is added in double-screw extruding pelletizing machine and is granulated,
Cooling, pelletizing, carries out testing its mechanical property, anti-microbial property and degradation property to obtained material.
Embodiment 4：
Weigh 100 parts of PLA, 40 parts of SEBS, 0.5 part of antioxidant in proportion, add lanthanum acetate so that rare earth element content is
1000ppm, 5min is blended using high speed agitator, mixed material is added in double-screw extruding pelletizing machine and is granulated, cools down, cuts
Grain, carries out testing its mechanical property, anti-microbial property and degradation property to obtained material.
Embodiment 5：
Weigh 100 parts of PLA, 50 parts of SEBS, 0.5 part of antioxidant in proportion, add lanthanum carbonate so that rare earth element content is
1500ppm, 5min is blended using high speed agitator, mixed material is added in double-screw extruding pelletizing machine and is granulated, cools down, cuts
Grain, carries out testing its mechanical property, anti-microbial property and degradation property to obtained material.
Comparative example 1：
100 parts of PLA, 20 parts of SEBS, 0.5 part of antioxidant are weighed in proportion, and 5min is blended using high speed agitator, will mix
Material is added in double-screw extruding pelletizing machine and is granulated, and is cooled down, pelletizing, obtained material is carried out testing its mechanical property, antibacterial
Performance and degradation property.
Test the results are shown in Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | |
| Elongation at break/% | 106 | 165 | 196 | 222 | 270 | 165 |
| Tensile strength/MPa | 41 | 36 | 29 | 25 | 22 | 36 |
| Anti-microbial property | 87% | 86% | 90% | 91% | 95% | 40% |
| Degradation property*/ day | 79 | 73 | 69 | 67 | 65 | 87 |
* the time therein is the time of degraded half weight.
It can be seen that the addition of rare earth element effectively improves the anti-microbial property of lactic acid composite material.Moreover, rare earth member
The addition of element improves the degradation property of material simultaneously, and degradation time about shortens 10 days or so.
The explanation of above example is only intended to help the core concept for understanding the present invention.It should be pointed out that for this area
Those of ordinary skill for, under the premise without departing from the principles of the invention, can also to the present invention carry out it is some improvement and repair
Decorations, but these are improved and modification is also fallen into the range of the claims in the present invention are claimed.
Claims (10)
1. a kind of medical degradable composite material, it is characterized in that：Contain PLA（PLA), toughener and antioxidant, wherein often
100 parts by weight PLAs（PLA) containing toughener 10-50 parts, antioxidant 0-1 parts.
2. composite according to claim 1, described toughener is thermoplastic elastomer (TPE).
3. composite according to claim 1, described toughener can be thermoplastic polyurethane（) or styrene TPU
Analog thermoplastic elastomer (SEBS or SBS).
4. composite according to claim 1, described antioxidant is selected from phenolic antioxidant and/or phosphorous acid esters resist
Oxygen agent.
5. composite according to claim 1, described antioxidant packages contain antioxidant 1010 and irgasfos 168.
6. composite according to claim 1, contain rare earth element in described degradable composite material.
7. composite according to claim 1, on the basis of the weight of composite, described rare earth element content is
50ppm-10000ppm, preferably 100-5000ppm, more preferably 500-1600ppm.
8. according to the composite described in claim any one of 5-7, described rare earth element includes cerium, lanthanum etc., by containing rare earth
The compound of element provides.
9. composite according to claim 8, described compounds containing rare earth optionally have cerous nitrate, ammonium ceric nitrate,
Ceria, cerium dichloride, lanthana, lanthanum acetate, lanthanum carbonate, cerium lanthanum compound can be used alone, can also compounding use.
10. a kind of disposable medical syringe, it is prepared as the composite described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075742.0A CN107815078A (en) | 2017-11-06 | 2017-11-06 | Medical composite and the disposable syringe of preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075742.0A CN107815078A (en) | 2017-11-06 | 2017-11-06 | Medical composite and the disposable syringe of preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107815078A true CN107815078A (en) | 2018-03-20 |
Family
ID=61604718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711075742.0A Pending CN107815078A (en) | 2017-11-06 | 2017-11-06 | Medical composite and the disposable syringe of preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107815078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175364A (en) * | 2020-09-24 | 2021-01-05 | 天津全和诚科技有限责任公司 | High-performance composite material for medical use and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519527A (en) * | 2009-03-24 | 2009-09-02 | 山东威高集团医用高分子制品股份有限公司 | Medical degradable composite material |
-
2017
- 2017-11-06 CN CN201711075742.0A patent/CN107815078A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519527A (en) * | 2009-03-24 | 2009-09-02 | 山东威高集团医用高分子制品股份有限公司 | Medical degradable composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175364A (en) * | 2020-09-24 | 2021-01-05 | 天津全和诚科技有限责任公司 | High-performance composite material for medical use and preparation method thereof |
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Application publication date: 20180320 |