CN106823068A - A kind of syringe - Google Patents

A kind of syringe Download PDF

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Publication number
CN106823068A
CN106823068A CN201611060733.XA CN201611060733A CN106823068A CN 106823068 A CN106823068 A CN 106823068A CN 201611060733 A CN201611060733 A CN 201611060733A CN 106823068 A CN106823068 A CN 106823068A
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CN
China
Prior art keywords
syringe
injection
sealing
layer
silica gel
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.)
Granted
Application number
CN201611060733.XA
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Chinese (zh)
Other versions
CN106823068B (en
Inventor
吕露
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panzhihua Jiuding Zhiyuan Intellectual Property Operation Co Ltd
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Panzhihua Jiuding Zhiyuan Intellectual Property Operation Co Ltd
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Priority to CN201611060733.XA priority Critical patent/CN106823068B/en
Publication of CN106823068A publication Critical patent/CN106823068A/en
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Publication of CN106823068B publication Critical patent/CN106823068B/en
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Classifications

    • 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
    • A61M5/3129—Syringe barrels
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A61M5/31535—Means improving security or handling thereof, e.g. blocking means, means preventing insufficient dosing, means allowing correction of overset dose
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A61M5/31545—Setting modes for dosing
    • A61M5/31548—Mechanically operated dose setting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0053—Producing sealings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
    • 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
    • A61M2005/3117—Means preventing contamination of the medicament compartment of a syringe
    • A61M2005/3118—Means preventing contamination of the medicament compartment of a syringe via the distal end of a syringe, i.e. syringe end for mounting a needle cannula
    • A61M2005/312—Means preventing contamination of the medicament compartment of a syringe via the distal end of a syringe, i.e. syringe end for mounting a needle cannula comprising sealing means, e.g. severable caps, to be removed prior to injection by, e.g. tearing or twisting
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The present invention relates to art injection devices, a kind of especially syringe, including injection tube, injection plug and injection needle；Sealing is provided with the injection port of injection tube, the connection end of injection needle is provided with the needle-like portion for piercing through the sealing.The structure is prevented from bacterium and pollutes syringe from the oral area of syringe by setting sealing and the injection needle corresponding with the sealing, improves fungi-proofing sterilization effect.The structure can be convenient to separately produce syringe and syringe needle, so as to simplify production difficulty.Sealing is and the integrally formed film of injection tube.Film is integrally formed, and better tightness, cost is lower, can disposable feature, it is completely fungi-proofing.By controlling the control of gag lever post propelling resistance, so as to effectively reduce the fltting speed of piston, the precise control to syringe addition is improved, its fltting speed is slower, and adding amount control is more accurate.

Description

A kind of syringe
Technical field
The present invention relates to art injection devices, especially a kind of syringe.
Background technology
Syringe can be used for Medical Devices, container, the scientific instrument such as in some chromatographys and be noted through diaphragm of rubber Penetrate.Direct injection of the gas into and will cause air embolism in blood vessel.From syringe remove air with the method for avoiding embolism be by Syringe is inverted, gently beats and then a little liquid was extruded before blood flow is expelled to.It is first rather than germ in some precision In the occasion to be considered a problem, such as quantitative chemical analysis, because the error of glass syringe is smaller, push rod gliding smoothing is so still Using.Can also when cooking carnivorous with syringe toward injecting some juice to improve taste and quality in meat, or In cake being injected into when bakeing.Can also be filled into ink in print cartridge by syringe.
Requirement due to present syringe to sterilization effect and injection volume is very strict, therefore improves the fungi-proofing of syringe The injection control accuracy of effect and raising syringe turns into the problem that nowadays office needs to solve.
The content of the invention
Goal of the invention of the invention is：For above-mentioned problem, there is provided a kind of syringe, by syringe port Portion sets sealing and designs the injection needle corresponding with the sealing, is prevented from bacterium and pollutes injection from the oral area of syringe Device, improves fungi-proofing sterilization effect.The structure can be convenient to separately produce syringe and syringe needle, so as to simplify production difficulty. The limit chamber and the cooperation of limited post, effectively control the adding amount of syringe.By controlling the control of gag lever post propelling resistance, So as to effectively reduce the fltting speed of piston, the precise control to syringe addition is improved, its fltting speed is slower, filling Amount control is more accurate.
The technical solution adopted by the present invention is as follows：
The invention discloses a kind of syringe, including injection tube, injection plug and injection needle；It is provided with the injection port of injection tube Sealing, the needle-like portion for piercing through the sealing is provided with the connection end of injection needle.The structure by set sealing and The injection needle corresponding with the sealing, is prevented from bacterium and pollutes syringe from the oral area of syringe, improves fungi-proofing sterilizing effect Really.The structure can be convenient to separately produce syringe and syringe needle, so as to simplify production difficulty.
Further, sealing is and the integrally formed film of injection tube.Film is integrally formed, better tightness, and cost is more It is low, can disposable feature, it is completely fungi-proofing.
Further, injection needle includes connecting portion and injection part, and connecting portion includes set in the connection end of injection needle, connecting portion Shape portion and the needle-like portion.The injection needle can puncture sealing using its needle-like portion, it is ensured that the normal of syringe is used, the set The connection fixing for being designed to improve syringe needle and syringe in shape portion.
Further, injection tube includes cylinder, and injection plug includes the madial wall of shank, columnar part and piston, piston and cylinder Sealing coordinates, and injection plug can be along the axial movement of injection tube so as to inject or be pumped into medicament.The simple structure being capable of simple, intuitive The control for carrying out injection volume, be convenient to the filling of syringe.
Further, limit chamber is provided with the outside of cylinder, the side of columnar part is provided with gag lever post in parallel； When piston is moved in cylinder, gag lever post is synchronous to be moved in limit chamber, by limiting position of the gag lever post in limit chamber Or speed is so as to limit the injection volume or injection speed of syringe.The limit chamber and the cooperation of limited post, effectively control injection The adding amount of device.
Further, airspace is cooperatively formed between gag lever post and limit chamber；Limit chamber is controlled by airspace Pressure release speed, so as to control the injection speed of syringe.As the part that gag lever post is pushed in limit chamber is more, between its ventilation The length of gap is longer, and limit chamber gas is slower by the speed that the airspace discharges gas, so as to effectively reduce piston Fltting speed, improves the precise control to syringe addition, and its fltting speed is slower, and adding amount control is more accurate.
Further, multiple passages arranged side by side are set on the side wall of limit chamber, and gag lever post is sealed with limit chamber and coordinated；It is logical Quantity or/and size that limitation is not limited the passage of bar covering are crossed, so as to control the injection speed of syringe.With spacing The propulsion of bar, is not limited the fewer of the passage that bar is covered, then the exhaust velocity of limit chamber gas is slower, makes the propulsion of piston Speed is slower, so as to be conducive to adding amount precise control.
Further, multiple spacing holes arranged side by side are set on the side wall of limit chamber；By to snapping in limit plunger in spacing hole, So as to control the injection volume of syringe.It is spacing so as to be carried out to gag lever post during limit plunger snapped in into spacing hole, so as to ensure injection The calibrated shot of device, effectively improves the precision of syringe.
Further, sealing is cylindrical, and sealing is made up of layer of silica gel, braiding layer, nontoxic rubber layer from the inside to the outside, nothing Malicious rubber layer connects with the madial wall glue of injection tube injection port；Braiding layer is used（5-12）Part bamboo fibre,（8-16）Part staple glass Fiber,（3-7）Part NACF braiding is formed.The structure of the sealing, Stability Analysis of Structures is small, elasticity is good, and restoration is strong, by pin After shape portion punctures, can quickly reduce, it is polluted so as to avoid bacterium from entering, and its elasticity is better than institute in existing Medical Devices Aseptic rubber.Its braiding layer can stablize layer of silica gel and improve the globality that layer of silica gel is connected with nontoxic rubber layer.
Further, the layer of silica gel is made up of following material：10 parts of natural rubbers, 25 parts of part nanometer silica gels, 0.2 part of silicic acid Calcium, 0.7 part of sorbierite, 0.6 part of N, N- ethylene bis stearamides, 3 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, 2 parts of acetate fibers Plain phthalate ester, 0.2 part of niobium oxide, 0.25 part of zirconium oxide, 4.2 parts of rosin resin acid.Due to the small volume of rubber stopper, and puncture The breakage rate percentage of rubber stopper is far longer than breakage rate percentage when existing rubber is used commonly greater than 30%, therefore, The elasticity of conventional medical rubber is unable to reach requirement, and the elasticity and the good silica gel content of restoration are have developed hereby.
Further, the preparation method of sealing is：
Step 1：By make layer of silica gel material be separately heated to 150-180 DEG C and kept for 4-6 minute, make portion of material thawing be Glue, the material for making layer of silica gel is stirred, and is then placed in being condensed into columned silica gel stick in mould；
Step 2：Braiding layer after the outside braiding 0.5-0.7mm of silica gel stick, and make braiding layer that there is the mesh of 40-50 mesh, Then 4-7min is vulcanized at a temperature of 91-102 DEG C to the silica gel stick with braiding layer, braiding layer is merged with silica gel stick；
Step 3：0.2- is formed using the nontoxic rubber that the pressure of 100-120kpa extrudes slush state in braiding layer outer layer The nontoxic rubber layer of 0.4mm, is made sealing first product；
Step 4：Sealing first product is put into zero degree environment carries out sterilizing 4-7 days；Then the surface to sealing first product is carried out Polishing, is made sealing finished product.
The method can strong, nontoxic, the durable rubber structure of production stability, with stronger availability and and preferably Fungi-proofing effect, it is possible to increase the use generality of sealing finished product, improve sealing elasticity, make the sealing disclosure satisfy that with Requirement of such specific position to elasticity at syringe oral area again.
In sum, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. sealing and the design injection needle corresponding with the sealing are set by syringe oral area, be prevented from bacterium from The oral area pollution syringe of syringe, improves fungi-proofing sterilization effect.The structure can be convenient to separately give birth to syringe and syringe needle Produce, so as to simplify production difficulty.
2. the limit chamber and the cooperation of limited post, effectively control the adding amount of syringe.Advanced by controlling gag lever post The control of resistance, so as to effectively reduce the fltting speed of piston, improves the precise control to syringe addition, its propulsion speed Degree is slower, and adding amount control is more accurate.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the structure chart of syringe;
Fig. 2 is the profile after part A is amplified.
Reference：1- injection tubes, 11- cylinders, 12- limit chambers, 13- sealings, 14- spacing holes, 2- injection plugs.21- Shank, 22- columnar parts, 23- gag lever posts, 24- pistons, 3- injection needles, 31- needle-like portions, 131- layer of silica gel, 132- braiding layers, 133- nontoxic rubbers layer, 32- shell-likes portion, 33- injection parts, 4- limit plungers.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive Feature and/or step beyond, can combine by any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent or with similar purpose by other Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics .
Embodiment 1
As shown in figure 1, of the invention the invention discloses a kind of syringe, including injection tube 1, injection plug 2 and injection needle 3；Note Sealing 13 is provided with the injection port of shooting cylinder 1, the connection end of injection needle 3 is provided with the needle-like for piercing through the sealing 13 Portion 31.
Sealing 13 is and the integrally formed film of injection tube 1.Film is integrally formed, and better tightness, cost is lower, energy Enough disposable features, it is completely fungi-proofing.Injection needle 3 includes connecting portion and injection part 33, and connecting portion is in the connection of injection needle 3 End, connecting portion includes shell-like portion 32 and the needle-like portion 31.The injection needle 3 can puncture sealing 13 using its needle-like portion 31, Ensure that the normal of syringe is used, the connection fixing for being designed to improve syringe needle and syringe in the shell-like portion 32.
Injection tube 1 includes cylinder 11, and injection plug 2 includes shank 21, columnar part 22 and piston 24, piston 24 and cylinder 11 Madial wall sealing coordinates, and injection plug 2 can be along the axial movement of injection tube 1 so as to inject or be pumped into medicament.The simple structure can The control for carrying out injection volume of simple, intuitive, is convenient to the filling of syringe.The outside of cylinder 11 is provided with limit chamber 12, The side of columnar part 22 is provided with gag lever post 23 in parallel；When piston 24 is moved in cylinder 11, the synchronization of gag lever post 23 Moved in limit chamber 12, by limiting position of the gag lever post 23 in limit chamber 12 or speed so as to limit the injection of syringe Amount or injection speed.The limit chamber 12 and the cooperation of limited post, effectively control the adding amount of syringe.
Airspace is cooperatively formed between gag lever post 23 and limit chamber 12；Letting out for limit chamber 12 is controlled by airspace Pressure speed, so as to control the injection speed of syringe.As the part that gag lever post 23 is pushed in limit chamber 12 is more, its ventilation The length in gap is longer, and the gas of limit chamber 12 is slower by the speed that the airspace discharges gas, so as to effectively reduce work The fltting speed of plug 24, improves the precise control to syringe addition, and its fltting speed is slower, and adding amount control is more accurate.
Multiple passages arranged side by side are set on the side wall of limit chamber 12, and gag lever post 23 is sealed with limit chamber 12 and coordinated；It is logical Quantity or/and size that limitation is not limited the passage of the covering of bar 23 are crossed, so as to control the injection speed of syringe.With limit The propulsion of position bar 23, is not limited the fewer of the passage that bar 23 is covered, then the exhaust velocity of the gas of limit chamber 12 is slower, makes work The fltting speed of plug 24 is slower, so as to be conducive to adding amount precise control.
Multiple spacing holes 14 arranged side by side are set on the side wall of limit chamber 12；By to snapping in limit plunger 4 in spacing hole 14, So as to control the injection volume of syringe.It is spacing so as to be carried out to gag lever post 23 during limit plunger 4 snapped in into spacing hole 14, so as to protect The calibrated shot of syringe is demonstrate,proved, the precision of syringe is effectively improved.
The structure is prevented from bacterium from note by setting sealing 13 and the injection needle 3 corresponding with the sealing 13 The oral area pollution syringe of emitter, improves fungi-proofing sterilization effect.The structure can be convenient to separately produce syringe and syringe needle, So as to simplify production difficulty.
Embodiment 2
As shown in Fig. 2 sealing 13 is cylindrical, sealing 13 is from the inside to the outside by layer of silica gel 131, braiding layer 132, nontoxic rubber Layer 133 is constituted, and nontoxic rubber layer 133 connects with the madial wall glue of the injection port of injection tube 1；5-12 parts of bamboo fibre of the use of braiding layer 132, 8-16 parts of short glass fiber, 3-7 parts of NACF braiding are formed.The structure of the sealing 13, Stability Analysis of Structures is small, elasticity Good, restoration is strong, after being punctured by needle-like portion 31, can quickly reduce, and it is polluted so as to avoid bacterium from entering, and its elasticity is strong The aseptic rubber used in existing Medical Devices.Its braiding layer 132 can stablize layer of silica gel 131 and improve layer of silica gel 131 The globality being connected with nontoxic rubber layer 133.Layer of silica gel 131 is made up of following material：10 parts of natural rubbers, 25 parts of part nano-silicons Glue, 0.2 part of calcium silicates, 0.7 part of sorbierite, 0.6 part of N, N- ethylene bis stearamides, 3 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, 2 parts of CAPs, 0.2 part of niobium oxide, 0.25 part of zirconium oxide, 4.2 parts of rosin resin acid.Due to the body of rubber stopper Product is small, and punctures the breakage rate percentage of rubber stopper commonly greater than 30%, and is far longer than the breakage rate hundred when existing rubber is used Divide ratio, therefore, the elasticity of conventional medical rubber is unable to reach requirement, and the elasticity and the good silicon of restoration are have developed hereby Glue composition.
Embodiment 3
The preparation method of the sealing 13 in embodiment 1 or 2 is：
Step 1：The material for making layer of silica gel 131 is separately heated to 150-180 DEG C and is kept for 4-6 minutes, melts portion of material Glue is turned to, the material for making layer of silica gel 131 is stirred, be then placed in being condensed into columned silica gel stick in mould；
Step 2：Braiding layer 132 after the outside braiding 0.5-0.7mm of silica gel stick, and make braiding layer 132 that there is 40-50 purposes Mesh, then vulcanizes 4-7min to the silica gel stick with braiding layer 132 at a temperature of 91-102 DEG C, makes braiding layer 132 and silica gel Rod is merged；
Step 3：0.2- is formed using the nontoxic rubber that the pressure of 100-120kpa extrudes slush state in the outer layer of braiding layer 132 The nontoxic rubber layer 133 of 0.4mm, is made the first product of sealing 13；
Step 4：The first product of sealing 13 is put into zero degree environment carries out sterilizing 4-7 days；Then to the surface of the first product of sealing 13 Polished, be made the finished product of sealing 13.
The method can strong, nontoxic, the durable rubber structure of production stability, with stronger availability and and preferably Fungi-proofing effect, it is possible to increase the use generality of the finished product of sealing 13, improves the elasticity of sealing 13, enables the sealing 13 Meet and requirement of such specific position to elasticity at syringe oral area again.
The invention is not limited in foregoing specific embodiment.The present invention is expanded to and any in this manual disclosed New feature or any new combination, and disclose any new method or process the step of or any new combination.

Claims (10)

1. a kind of syringe, it is characterised in that including injection tube（1）, injection plug（2）And injection needle（3）；Injection tube（1）Note Sealing is provided with loophole（13）, in injection needle（3）Connection end be provided with for piercing through the sealing（13）Needle-like portion （31）.
2. syringe as claimed in claim 1, it is characterised in that sealing（13）It is and injection tube（1）It is integrally formed thin Film.
3. syringe as claimed in claim 1, it is characterised in that injection tube（1）Including cylinder（11）, injection plug（2）Including Shank（21）, columnar part（22）And piston（24）, piston（24）With cylinder（11）Madial wall sealing coordinate, injection plug（2）Can Along injection tube（1）Axial movement so as to inject or be pumped into medicament.
4. syringe as claimed in claim 2, it is characterised in that in cylinder（11）Outside be provided with limit chamber（12）, Columnar part（22）Side be provided with gag lever post in parallel（23）；Piston（24）In cylinder（11）When interior mobile, gag lever post （23）It is synchronous in limit chamber（12）Middle movement, by limiting gag lever post（23）In limit chamber（12）In position or speed so as to Limit the injection volume or injection speed of syringe.
5. syringe as claimed in claim 4, it is characterised in that in gag lever post（23）And limit chamber（12）Between cooperatively form Airspace；Limit chamber is controlled by airspace（12）Pressure release speed, so as to control the injection speed of syringe.
6. syringe as claimed in claim 4, it is characterised in that in limit chamber（12）Side wall on set multiple arranged side by side lead to Stomata, gag lever post（23）With limit chamber（12）Sealing coordinates；Bar is not limited by limitation（23）The quantity of the passage of covering Or/and size, so as to control the injection speed of syringe.
7. syringe as claimed in claim 4, it is characterised in that in limit chamber（12）Side wall on multiple limits arranged side by side are set Position hole（14）；By to spacing hole（14）Inside snap in limit plunger（4）, so as to control the injection volume of syringe.
8. syringe as claimed in claim 1, it is characterised in that sealing（13）It is cylindrical, sealing（13）By it is interior extremely Outward by layer of silica gel（131）, braiding layer（132）, nontoxic rubber layer（133）Composition, nontoxic rubber layer（133）With injection tube（1）Note The madial wall glue of loophole connects；Braiding layer（132）Using（5-12）Part bamboo fibre,（8-16）Part short glass fiber,（3-7）Part is living Property Carbon fibe braiding form.
9. syringe as claimed in claim 8, it is characterised in that the layer of silica gel（131）It is made up of following material：10 parts of days Right rubber, 25 parts of part nanometer silica gels, 0.2 part of calcium silicates, 0.7 part of sorbierite, 0.6 part of N, N- ethylene bis stearamides, 3 parts of fat Alcohol polyethenoxy ether sodium sulfate, 2 parts of CAPs, 0.2 part of niobium oxide, 0.25 part of zirconium oxide, 4.2 parts of abietyl trees Resin acid.
10. syringe as claimed in claim 8, it is characterised in that sealing（13）Preparation method be：
Step 1：Layer of silica gel will be made（131）Material be separately heated to 150-180 DEG C and kept for 4-6 minutes, make portion of material It is glue to melt, and will make layer of silica gel（131）Material stir, be then placed in being condensed into columned silica gel in mould Rod；
Step 2：Braiding layer after the outside braiding 0.5-0.7mm of silica gel stick（132）, and make braiding layer（132）With 40-50 Purpose mesh, then to band braiding layer（132）Silica gel stick vulcanize 4-7min at a temperature of 91-102 DEG C, make braiding layer （132）Merged with silica gel stick；
Step 3：In braiding layer（132）Outer layer is formed using the nontoxic rubber that the pressure of 100-120kpa extrudes slush state The nontoxic rubber layer of 0.2-0.4mm（133）, it is made sealing（13）First product；
Step 4：To sealing（13）First product carries out sterilizing 4-7 days in being put into zero degree environment；Then to sealing（13）First product Surface is polished, and is made sealing（13）Finished product.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107583142A (en) * 2017-10-10 2018-01-16 苏州浔宇新材料科技有限公司 A kind of stable fixed-quantity injector of constant speed
CN110201267A (en) * 2019-07-13 2019-09-06 黄德玉 A kind of combined type aesthetic surgery syringe
CN111249580A (en) * 2020-03-01 2020-06-09 杜明誉 High-precision pressure propeller for autologous fat

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CN201370854Y (en) * 2009-02-06 2009-12-30 浙江玉升医疗器械股份有限公司 Self-destroying safety injector
CN201505350U (en) * 2009-08-31 2010-06-16 王兴章 Safe injector with injection needle capable of being pulled back
CN101905047A (en) * 2009-06-03 2010-12-08 于海 Reverse thrust type pre-charge injector
CN201978264U (en) * 2011-03-07 2011-09-21 石洪菊 Safety injector

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CN201370854Y (en) * 2009-02-06 2009-12-30 浙江玉升医疗器械股份有限公司 Self-destroying safety injector
CN101905047A (en) * 2009-06-03 2010-12-08 于海 Reverse thrust type pre-charge injector
CN201505350U (en) * 2009-08-31 2010-06-16 王兴章 Safe injector with injection needle capable of being pulled back
CN201978264U (en) * 2011-03-07 2011-09-21 石洪菊 Safety injector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107583142A (en) * 2017-10-10 2018-01-16 苏州浔宇新材料科技有限公司 A kind of stable fixed-quantity injector of constant speed
CN110201267A (en) * 2019-07-13 2019-09-06 黄德玉 A kind of combined type aesthetic surgery syringe
CN111249580A (en) * 2020-03-01 2020-06-09 杜明誉 High-precision pressure propeller for autologous fat

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