CN106003540B - A kind of processing technology of disposable medical sodium citrate vacuum blood collection tube - Google Patents
A kind of processing technology of disposable medical sodium citrate vacuum blood collection tube Download PDFInfo
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- CN106003540B CN106003540B CN201610391940.7A CN201610391940A CN106003540B CN 106003540 B CN106003540 B CN 106003540B CN 201610391940 A CN201610391940 A CN 201610391940A CN 106003540 B CN106003540 B CN 106003540B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C2045/0096—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor drying the moulding material before injection, e.g. by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
Abstract
The present invention relates to clinical treatment equipment technology fields, disclose the processing technology of disposable medical sodium citrate vacuum blood collection tube, and specific steps include：Dispensing, drying crystallization, dehumidifying, air draft, injection molding.This invention simplifies production technologies, reduce production cost, product wall thickness obtained and the preservation term of validity are all improved significantly, wall thickness is up to 2mm, greatly improve the safe application performance of product and air tight performance, the negative pressure of vacuum blood collection tube can be effectively ensured, extension of validity was to 12 months, convenient for producing in batches and purchasing, and further enhance the air tight performance of product in one week high density PE label of heparin tube surface adhesion, and it without being reloaded into aluminium plastic bag, avoids user and removes cumbersome packaging and waste the precious time.
Description
Technical field
The present invention relates to clinical treatment equipment technology fields, and in particular to a kind of disposable medical sodium citrate vacuum blood collection
The processing technology of pipe.
Background technology
The detection of blood preparation is the conventional technical means of medical institutions' clinical examination, wherein the inspection of venous blood sample
Survey be widely used in detecting biochemical indicator, blood clotting index, hemorheology index, blood routine analysis, it is micro- and from
Subconstiuent analysis, nutritional ingredient detection, detection of drug concentration, genetic test, infectious disease pathogens detection, microorganism detection etc.
Deng.Common vacuum blood collection tube is made of the prior art heparin tube tube body, rubber plug and skull, additive, label etc. in the market, material
Matter is mostly glass and plastic tube, but since glass tube has very big hidden danger in security performance, is replaced using special plastic PET test tubes
Become a kind of trend for glass tube.Sodium citrate vacuum PET heparin tubes are also referred to as blood clotting pipe, are double-layer structure, and outer layer is PET materials
Matter, internal layer are PP materials, contain sodium citrate in inner tube, sodium citrate by blood sample calcium ion chelate by anti-freezing make
With anti-coagulants and blood ratio are 1：9, it is mainly used for fibrinolytic system (prothrombin time, thrombin time, activated partial blood coagulation
Enzyme time, fibrinogen) detection.Sodium citrate vacuum PET heparin tubes are milky or light yellow, highly crystalline polymerization
Object, have good physical mechanical property, creep resistance, fatigue durability, rub resistance, dimensional stability, but simultaneously there is also
It is slow PET crystalline rates, the problems such as processing and forming is difficult, and molding temperature is high, and the production cycle is long, and impact property is poor.Medical industry
In, in process of production, the requirement using high speed machine to product thickness is more stringent, usually for sodium citrate vacuum PET heparin tubes
For wall thickness within 1.2mm, the increase of wall thickness brings conclusive effect, but the meeting in processing to the safety in utilization of product
It is unstable, it is unable to volume production, the problems such as usual product will appear white point, current mark, bias, bad burr and transparency.Meeting when use
It causes vision to slip up to doctor, and influences the analysis and judgement of doctor.In addition, the shelf-life of ammonium citrate vacuum PET heparin tubes
It is typically only 8 months, production and processing and shelf-life are not solved effectively, are also resulted in hospital and are unable to volume procurement storage
It deposits, or even the case where hospital's supply shortage occurs.
Invention content
The purpose of the present invention is to provide a kind of processing technologys of disposable medical sodium citrate vacuum blood collection tube, solve
The problems such as PET injection molding wall thickness is relatively thin, heparin tube period of guaranteeing the quality is short, effectively improve its shelf-life.
In order to achieve the above object, the present invention is achieved by the following technical programs：
A kind of processing technology of disposable medical sodium citrate vacuum blood collection tube, is as follows：
1) dispensing：Pellet additive and medical pitch are added into PET, is uniformly mixed, obtains mixture；
2) drying crystallization：The mixture of step 1) is put into drying box, 3.5-4h is heated at 160-170 DEG C, is sampled,
Whether it is fully crystallized with light transmission equipment detection mixture, there are small non-crystalline portion inside mixture, opens drying box
Agitating function stirs 15-20min, then dries again, and drying temperature is 160-170 DEG C, and time 1.5-2h must crystallize material；
3) it dehumidifies：Crystallization material in step 2) is transferred in dehumidifier, control rotating speed dehumidifies the time in 300-350r/min
For 30min；
4) air draft：Start exhaust blower, control rotating speed 750-800r/min, the micronic dust in crystallization material is excluded, air-bled time
For 10min；
5) injection molding：Multistage temperature control injection molding machine is selected, and carries out multiple temperature sections temperature control, one section of temperature control is 200 DEG C, two
It is 190 DEG C that section, which is 220 DEG C, four sections for 220 DEG C, three sections, is under high pressure ejected into melt liquid in mold through nozzle at high speeds, is sprayed
After penetrating, to three sections of injection molding machine and four sections progress pressurize 4s, while with cooling water mold is carried out being quickly cooled down cooling, be opened
Mould obtains the vacuum blood collection tube finished product of high transparency shape；
Preferably, the viscosity of PET is 0.70-0.81dL/g, fusing point >=240 DEG C in the step 1).
Preferably, pellet additive is industrial paraffin in the step 1).
Preferably, the mass ratio of PET, pellet additive and medical pitch are 100-150 in the step 1)：1-4：0.4-
1。
Preferably, the temperature of mold is 19-21 DEG C in the step 5).
Preferably, the cooling water pipeline in the step 5) on mold goes out pipeline for 8 into 8；The temperature of cooling water is 6-8
DEG C, cooling time 6s.
Preferably, vacuum blood collection tube finished product outer diameter is consistent in the step 5), and vacuum blood collection tube is from the downward 10mm of upper port
Vertical section wall thickness be 1mm, remaining wall thickness be 2mm.
Preferably, vacuum blood collection tube obtained is after conventional treatment in the step 5), under high pressure by high density PE materials
The label of matter adheres to vacuum blood collection pipe surface one week.
Advantageous effect of the present invention：The present invention solves the problems, such as that injecting products wall thickness is relatively thin by adding pitch, due to cypress
Oil can volatilize automatically at 220-240 DEG C, when being molded moment by PET viscosity drops as low as 0.45dL/g, and complete quickly
Molding, the sodium citrate vacuum blood collection tube smooth surface processed is glossy, and with good thermal deformation behavior, impact
Energy, toughness and corrosion resistance, product wall thickness improve 66.7%, greatly improve product up to 2mm, more traditional wall thickness
Safe application performance, and the air tight performance of product is also improved, and the negative pressure of vacuum blood collection tube can be effectively ensured, and ensures lemon
The long-time stability of lemon acid sodium solution concentration, to obtain, accurately and reliably test result, the term of validity of product are 12
Month.Sodium citrate vacuum PET heparin tubes prepared by the present invention simplify production technology, and single-layer tubular structure is instead of traditional lemon
The two-layer pipe of sour sodium vacuum blood collection tube, the PP layers without the inside are managed, and production cost, product wall thickness obtained and guarantor are reduced
It deposits the term of validity to be all improved significantly, convenient for batch production and buying, and in one week high density PE mark of heparin tube surface adhesion
Label further enhance the air tight performance of product, and without being reloaded into aluminium plastic bag, avoid user and remove cumbersome packaging
And it wastes the precious time.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Embodiment 1：
A kind of processing technology of disposable medical sodium citrate vacuum blood collection tube, is as follows：
1) dispensing：It selects viscosity for 0.70-0.81dL/g, the PET raw materials of fusing point >=240 DEG C, industrial stone is added thereto
Wax and medical pitch so that the mass ratio of PET, industrial paraffin and medical pitch are 100：1：0.4, it is uniformly mixed, obtains mixture；
2) drying crystallization：The mixture of step 1) is put into drying box, 4h is heated at 160 DEG C, samples, is set with light transmission
Whether standby detection mixture is fully crystallized, and there are small non-crystalline portion inside mixture, opens the agitating function of drying box,
15min is stirred, is then dried again, drying temperature is 170 DEG C, and time 1.5h must crystallize material；
3) it dehumidifies：Crystallization material in step 2) is transferred in dehumidifier, control rotating speed is in 300r/min, dehumidifying time
30min；
4) air draft：Start exhaust blower, control rotating speed 750r/min, the micronic dust in crystallization material is excluded, air-bled time is
10min；
5) injection molding：Multistage temperature control injection molding machine is selected, and carries out multiple temperature sections temperature control, one section of temperature control is 200 DEG C, two
It is 190 DEG C that section, which is 220 DEG C, four sections for 220 DEG C, three sections, is under high pressure ejected into melt liquid in mold through nozzle at high speeds, mould
The temperature of tool be 19 DEG C, AEI After End of Injection, to three sections of injection molding machine and four sections progress pressurize 4s, while with cooling water to mold into
Row is quickly cooled down cooling, and the temperature of cooling water is 6 DEG C, cooling time 6s, the cooling water pipeline on mold goes out pipeline for 8 into 8,
More conventional 4 go out pipeline cooling velocity faster into 4, obtain the vacuum blood collection tube finished product of high transparency shape, gained vacuum blood collection tube finished product
Outer diameter is consistent, and pipe total length is 75mm, vacuum blood collection tube from the vertical section wall thickness of the downward 10mm of upper port be 1mm, remaining wall thickness
For 2mm；
6) it labels：After the vacuum blood collection tube that step 5) is obtained carries out conventional treatment, under high pressure by high density PE materials
The label of matter adheres to vacuum blood collection pipe surface one week.
Embodiment 2：
A kind of processing technology of disposable medical sodium citrate vacuum blood collection tube, is as follows：
1) dispensing：It selects viscosity for 0.70-0.81dL/g, the PET raw materials of fusing point >=240 DEG C, industrial stone is added thereto
Wax and medical pitch so that the mass ratio of PET, industrial paraffin and medical pitch are 150：4：1, it is uniformly mixed, obtains mixture；
2) drying crystallization：The mixture of step 1) is put into drying box, 3.5h is heated at 170 DEG C, samples, uses light transmission
Whether equipment detection mixture is fully crystallized, and there are small non-crystalline portions inside mixture, open the stirring work(of drying box
Can, 20min is stirred, is then dried again, drying temperature is 160 DEG C, and time 2h must crystallize material；
3) it dehumidifies：Crystallization material in step 2) is transferred in dehumidifier, control rotating speed is in 350r/min, dehumidifying time
30min；
4) air draft：Start exhaust blower, control rotating speed 750r/min, the micronic dust in crystallization material is excluded, air-bled time is
10min；
5) injection molding：Multistage temperature control injection molding machine is selected, and carries out multiple temperature sections temperature control, one section of temperature control is 200 DEG C, two
It is 190 DEG C that section, which is 220 DEG C, four sections for 220 DEG C, three sections, is under high pressure ejected into melt liquid in mold through nozzle at high speeds, mould
The temperature of tool be 21 DEG C, AEI After End of Injection, to three sections of injection molding machine and four sections progress pressurize 4s, while with cooling water to mold into
Row is quickly cooled down cooling, and the temperature of cooling water is 8 DEG C, cooling time 6s, the cooling water pipeline on mold goes out pipeline for 8 into 8,
More conventional 4 go out pipeline cooling velocity faster into 4, obtain the vacuum blood collection tube finished product of high transparency shape, gained vacuum blood collection tube finished product
Outer diameter is consistent, and pipe total length is 75mm, vacuum blood collection tube from the vertical section wall thickness of the downward 10mm of upper port be 1mm, remaining wall thickness
For 2mm；
6) it labels：After the vacuum blood collection tube that step 5) is obtained carries out conventional treatment, under high pressure by high density PE materials
The label of matter adheres to vacuum blood collection pipe surface one week.
Embodiment 3：
A kind of processing technology of disposable medical sodium citrate vacuum blood collection tube, is as follows：
1) dispensing：It selects viscosity for 0.70-0.81dL/g, the PET raw materials of fusing point >=240 DEG C, industrial stone is added thereto
Wax and medical pitch so that the mass ratio of PET, industrial paraffin and medical pitch are 100：2：0.5, it is uniformly mixed, obtains mixture；
2) drying crystallization：The mixture of step 1) is put into drying box, 4h is heated at 165 DEG C, samples, is set with light transmission
Whether standby detection mixture is fully crystallized, and there are small non-crystalline portion inside mixture, opens the agitating function of drying box,
20min is stirred, is then dried again, drying temperature is 165 DEG C, and time 2h must crystallize material；
3) it dehumidifies：Crystallization material in step 2) is transferred in dehumidifier, control rotating speed is in 350r/min, dehumidifying time
30min；
4) air draft：Start exhaust blower, control rotating speed 800r/min, the micronic dust in crystallization material is excluded, air-bled time is
10min；
5) injection molding：Multistage temperature control injection molding machine is selected, and carries out multiple temperature sections temperature control, one section of temperature control is 200 DEG C, two
It is 190 DEG C that section, which is 220 DEG C, four sections for 220 DEG C, three sections, is under high pressure ejected into melt liquid in mold through nozzle at high speeds, mould
The temperature of tool be 20 DEG C, AEI After End of Injection, to three sections of injection molding machine and four sections progress pressurize 4s, while with cooling water to mold into
Row is quickly cooled down cooling, and the temperature of cooling water is 6 DEG C, cooling time 6s, the cooling water pipeline on mold goes out pipeline for 8 into 8,
More conventional 4 go out pipeline cooling velocity faster into 4, obtain the vacuum blood collection tube finished product of high transparency shape, gained vacuum blood collection tube finished product
Outer diameter is consistent, and pipe total length is 75mm, vacuum blood collection tube from the vertical section wall thickness of the downward 10mm of upper port be 1mm, remaining wall thickness
For 2mm；
6) it labels：After the vacuum blood collection tube that step 5) is obtained carries out conventional treatment, under high pressure by high density PE materials
The label of matter adheres to vacuum blood collection pipe surface one week.
Embodiment 4：
A kind of processing technology of disposable medical sodium citrate vacuum blood collection tube, is as follows：
1) dispensing：It selects viscosity for 0.70-0.81dL/g, the PET raw materials of fusing point >=240 DEG C, industrial stone is added thereto
Wax and medical pitch so that the mass ratio of PET, industrial paraffin and medical pitch are 140：3：0.7, it is uniformly mixed, obtains mixture；
2) drying crystallization：The mixture of step 1) is put into drying box, 3.5 are heated at 165 DEG C, light transmission is used in sampling
Whether equipment detection mixture is fully crystallized, and there are small non-crystalline portions inside mixture, open the stirring work(of drying box
Can, 20min is stirred, is then dried again, drying temperature is 170 DEG C, and time 2h must crystallize material；
3) it dehumidifies：Crystallization material in step 2) is transferred in dehumidifier, control rotating speed is in 300r/min, dehumidifying time
30min；
4) air draft：Start exhaust blower, control rotating speed 800r/min, the micronic dust in crystallization material is excluded, air-bled time is
10min；
5) injection molding：Multistage temperature control injection molding machine is selected, and carries out multiple temperature sections temperature control, one section of temperature control is 200 DEG C, two
It is 190 DEG C that section, which is 220 DEG C, four sections for 220 DEG C, three sections, is under high pressure ejected into melt liquid in mold through nozzle at high speeds, mould
The temperature of tool be 21 DEG C, AEI After End of Injection, to three sections of injection molding machine and four sections progress pressurize 4s, while with cooling water to mold into
Row is quickly cooled down cooling, and the temperature of cooling water is 7 DEG C, cooling time 6s, the cooling water pipeline on mold goes out pipeline for 8 into 8,
More conventional 4 go out pipeline cooling velocity faster into 4, obtain the vacuum blood collection tube finished product of high transparency shape, gained vacuum blood collection tube finished product
Outer diameter is consistent, and pipe total length is 75mm, vacuum blood collection tube from the vertical section wall thickness of the downward 10mm of upper port be 1mm, remaining wall thickness
For 2mm；
6) it labels：After the vacuum blood collection tube that step 5) is obtained carries out conventional treatment, under high pressure by high density PE materials
The label of matter adheres to vacuum blood collection pipe surface one week.
To sum up, the embodiment of the present invention has the advantages that：This invention simplifies production technologies, reduce and are produced into
This, product wall thickness obtained and the preservation term of validity are all improved significantly, and wall thickness greatly improves the peace of product up to 2mm
Performance and air tight performance are entirely used, the negative pressure of vacuum blood collection tube can be effectively ensured, extension of validity was to 12 months, convenient for criticizing
Amount production and buying, and the air tight performance of product is further enhanced in one week high density PE label of heparin tube surface adhesion,
And it without being reloaded into aluminium plastic bag, avoids user and removes cumbersome packaging and waste the precious time.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of processing technology of disposable medical sodium citrate vacuum blood collection tube, which is characterized in that be as follows：
1) dispensing：Pellet additive and medical pitch are added into PET, is uniformly mixed, obtains mixture；
2) drying crystallization：The mixture of step 1) is put into drying box, 3.5-4h is heated at 160-170 DEG C, is sampled, with saturating
Whether light device detection mixture is fully crystallized, and there are small non-crystalline portion inside mixture, opens the stirring of drying box
Function stirs 15-20min, then dries again, and drying temperature is 160-170 DEG C, and time 1.5-2h must crystallize material；
3) it dehumidifies：Crystallization material in step 2) is transferred in dehumidifier, control rotating speed is in 300-350r/min, dehumidifying time
30min；
4) air draft：Start exhaust blower, control rotating speed 750-800r/min, the micronic dust in crystallization material is excluded, air-bled time is
10min；
5) injection molding：Multistage temperature control injection molding machine is selected, and carries out multiple temperature sections temperature control, one section of temperature control is for 200 DEG C, two sections
It is 190 DEG C that 220 DEG C, three sections, which are 220 DEG C, four sections, is under high pressure ejected into melt liquid in mold through nozzle at high speeds, injection knot
Shu Hou to three sections of injection molding machine and four sections progress pressurize 4s, while with cooling water carrying out mold being quickly cooled down cooling, die sinking,
Obtain the vacuum blood collection tube finished product of high transparency shape.
2. the processing technology of disposable medical sodium citrate vacuum blood collection tube as described in claim 1, which is characterized in that described
The viscosity of PET is 0.70-0.81dL/g, fusing point >=240 DEG C in step 1).
3. the processing technology of disposable medical sodium citrate vacuum blood collection tube as described in claim 1, which is characterized in that described
Pellet additive is industrial paraffin in step 1).
4. the processing technology of disposable medical sodium citrate vacuum blood collection tube as described in claim 1, which is characterized in that described
The mass ratio of PET, pellet additive and medical pitch are 100-150 in step 1)：1-4：0.4-1.
5. the processing technology of disposable medical sodium citrate vacuum blood collection tube as described in claim 1, which is characterized in that described
The temperature of mold is 19-21 DEG C in step 5).
6. the processing technology of disposable medical sodium citrate vacuum blood collection tube as described in claim 1, which is characterized in that described
Cooling water pipeline in step 5) on mold goes out pipeline for 8 into 8；The temperature of cooling water be 6-8 DEG C, cooling time 6s.
7. the processing technology of disposable medical sodium citrate vacuum blood collection tube as described in claim 1, which is characterized in that described
Vacuum blood collection tube finished product outer diameter is consistent in step 5), vacuum blood collection tube from the vertical section wall thickness of the downward 10mm of upper port be 1mm,
Remaining wall thickness is 2mm.
8. the processing technology of disposable medical sodium citrate vacuum blood collection tube as described in claim 1, which is characterized in that described
The label of high density PE materials is adhered to vacuum under high pressure and adopted by vacuum blood collection tube obtained after conventional treatment in step 5)
Blood vessel surface one week.
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| CN101434740A (en) * | 2007-11-12 | 2009-05-20 | 胜技高分子株式会社 | Polybutylene terephthalate resion composition and thin film product |
| CN102764133A (en) * | 2012-08-10 | 2012-11-07 | 上海科华检验医学产品有限公司 | Vacuum blood collection tube and method thereof capable of directly separating blood plasma |
| CN103640141A (en) * | 2013-12-18 | 2014-03-19 | 天津市中环亚光电子有限责任公司 | Injection molding process of PET (Polyester) plastic tube for disposable vacuum blood collection tube |
| CN104017338A (en) * | 2014-06-23 | 2014-09-03 | 华润包装材料有限公司 | Polyester slices for manufacturing vacuum blood collection tube and preparation method of polyester slices |
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Denomination of invention: Processing technology of disposable medical sodium citrate vacuum blood vessel Effective date of registration: 20210622 Granted publication date: 20181002 Pledgee: Weihai Commercial Bank Co.,Ltd. Lingang Economic and Technological Development Zone sub branch Pledgor: WEIHAI SAIWEI MEDICAL TECHNOLOGY Co.,Ltd.|Jiang Quanguo Registration number: Y2021990000539 |
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Denomination of invention: Processing technology of disposable medical sodium citrate Vacutainer Effective date of registration: 20230621 Granted publication date: 20181002 Pledgee: Weihai Commercial Bank Co.,Ltd. Lingang Economic and Technological Development Zone sub branch Pledgor: WEIHAI SAIWEI MEDICAL TECHNOLOGY CO.,LTD.|Jiang Quanguo Registration number: Y2023110000247 |