CN109498910A - A kind of injector for medical purpose of the anti-air stream contamination of use process - Google Patents
A kind of injector for medical purpose of the anti-air stream contamination of use process Download PDFInfo
- Publication number
- CN109498910A CN109498910A CN201910035482.7A CN201910035482A CN109498910A CN 109498910 A CN109498910 A CN 109498910A CN 201910035482 A CN201910035482 A CN 201910035482A CN 109498910 A CN109498910 A CN 109498910A
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- China
- Prior art keywords
- syringe
- box
- injector
- fixedly installed
- current limliting
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000008569 process Effects 0.000 title claims abstract description 42
- 238000011109 contamination Methods 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 2
- 239000000843 powder Substances 0.000 claims 1
- 230000008676 import Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009455 aseptic packaging Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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
- 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
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M5/31513—Piston constructions to improve sealing or sliding
-
- 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
-
- 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
- A61M2005/3121—Means preventing contamination of the medicament compartment of a syringe via the proximal end of a syringe, i.e. syringe end opposite to needle cannula mounting end
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to the field of medical instrument technology, and disclose a kind of injector for medical purpose of anti-air stream contamination of use process, including syringe, the syringe needle for taking liquid and fluid injection is fixedly installed on the right side of the syringe, the syringe needle and syringe right side are interconnected, the left side thread bush of syringe is equipped with mounting blocks, the right side of mounting blocks is fixedly installed with the current limliting box positioned at syringe inner cavity, the inner wall of current limliting box is successively fixedly installed with the first current limiting plate and the second current limiting plate for limiting air velocity from left to right, the inner cavity of syringe is movably installed with rubber piston, the right side of rubber piston is fixedly installed with connecting rod.The injector for medical purpose of the anti-air stream contamination of the use process, by installing air inlet manually during taking liquid, so that inside syringe outside sterilised air current exhaustjet device, and form the state of air-flow only import but no export, avoiding draught head cataclysm causes pushing cylinder internal cavities to enter outside air, provides safety guarantee for subsequent fluid injection.
Description
Technical field
The present invention relates to the field of medical instrument technology, the injector for medical purpose of specially a kind of anti-air stream contamination of use process.
Background technique
Syringe is the injection Medical Devices for carrying out injecting fluid drug to patient, by syringe, syringe needle and piston group
Part composition, existing syringe are typically placed in front of the use in aseptic packaging set, and the piston of syringe is located inside syringe
Near needle position, in order to reduce the packaging volume of entire syringe and medical staff is facilitated directly to carry out that liquid is taken to inject,
However in injection process, due to the movement of piston, the variation with piston other side volume of air causes the gas inside and outside syringe
Pressure difference, syringe exterior air-flow will enter inside syringe with the movement of piston at this time, bacterium in outside air will therewith into
Enter in syringe and contact with each other with injection, increase the contaminated probability of injection, causes to infect to increase injection process
Probability.
Summary of the invention
The present invention provides a kind of injector for medical purpose of the anti-air stream contamination of use process, have prevent it is thin to injection process air
Bacterium pollutes the advantages of injection, solves existing syringe outside air bacterium in use, with gas inside syringe
Air-flow caused by pressure difference enters inside syringe, and the problem of pollute injection.
The invention provides the following technical scheme: a kind of injector for medical purpose of the anti-air stream contamination of use process, including syringe, institute
The syringe needle being fixedly installed on the right side of syringe for taking liquid and fluid injection is stated, the syringe needle and syringe right side are interconnected, described
The left side thread bush of syringe is equipped with mounting blocks, and the right side of the mounting blocks is fixedly installed with the current limliting positioned at syringe inner cavity
Box, the inner wall of the current limliting box are successively fixedly installed with the first current limiting plate and the second limit for limiting air velocity from left to right
Flowing plate, the inner cavity of the syringe are movably installed with rubber piston, and the right side of the rubber piston is fixedly installed with connecting rod, institute
The right side for stating connecting rod is fixedly installed with pushing cylinder, and the left end of the pushing cylinder sequentially passes through current limliting box and mounting blocks and is fixedly mounted
There is the pushing block being located at outside syringe, offers air inlet at the top of the pushing cylinder；
The inside of the pushing cylinder is cavity, and the volume of cavity is 2/3rds of syringe cavity volume, the pushing cylinder right side
Area be greater than connecting rod, the right side of the pushing cylinder offers the venthole positioned at connecting rod edge, the number of the venthole
Amount is eight, and the inner wall shape of first current limiting plate and current limliting box is at α angle, and the inner wall of second current limiting plate and current limliting box is formed
The angle β, the right side of the current limliting box offers through-hole compatible with pushing cylinder, and the surface of through-hole is equipped with elastic ring, described
The inner surface of elastic ring and the outer surface frictional connection of pushing cylinder.
Optionally, mounting blocks are fixedly installed in the middle part of the rubber piston left side, the left side of the mounting blocks is opened
Equipped with threaded hole compatible with venthole right end.
Optionally, the first movement for facilitating pushing cylinder mobile is respectively equipped in the middle part of first current limiting plate and the second current limiting plate
Hole and the second moving hole, and the cross-sectional area in first movement hole is twice of the second mobile empty cross section.
Optionally, first current limiting plate and current limliting box-like range at α angle are 100 degree to 150 degree, described the
Two current limiting plates and the at angle β range of current limliting box-like are 50 degree to 100 degree, and the angle α and β angular difference are 50 degree.
Optionally, the cross section of the air inlet is the half of cost thumbnail size, and is installed at air inlet top edge
Rubber sleeve.
Optionally, the air inlet is consistent to the distance of rubber piston and the length value of syringe.
Optionally, the rubber piston is five rubber ring high temperature weldings, and is located at the white shape of rubber ring of the leftmost side,
Remaining rubber ring is conventional black shape.
Optionally, the current limliting box is funnel-shaped, and the area of the right side of current limliting box is less than the face of current limliting box left side
Product.
The present invention have it is following the utility model has the advantages that
1, the injector for medical purpose of the anti-air stream contamination of the use process, by installing air inlet manually during taking liquid, so that needle
Outside the internal sterilised air current exhaustjet device of cylinder, and the state of air-flow only import but no export is formed, avoids draught head cataclysm and cause to push away
Cylinder internal cavities enter outside air, provide safety guarantee for subsequent fluid injection.
2, the injector for medical purpose of the anti-air stream contamination of the use process enters needle to by mounting blocks by the setting angle α and the angle β
The internal secondary speed limit of air-flow progress of cylinder, greatly reduces the flow velocity of the process air-flow so that in injection process, unclamp into
The flow velocity of air-flow is much larger than the gas stream entered in syringe from mounting blocks in the gas passage that port, air inlet and venthole are formed
Speed, so that the supplemental air flow into syringe inner cavity is the germ-free air flow of original state, so that external air flow in injection process
The inner cavity that cannot be introduced into syringe ensure that injection is in germ-free condition always, then reduce what infecting occurred in injection process
Probability.
3, the injector for medical purpose of the anti-air stream contamination of the use process, by the way that mounting blocks are arranged, so that assembling the syringe
In the process, the inside that rubber piston is first placed on to syringe is only needed, mounting blocks and current limliting box are finally assembled, pushing cylinder is directly inserted
Enter the inside of syringe and be directed at mounting blocks rotation, greatly simplifies the assembly of piston and push rod, increase the device
Produce the feasibility and high efficiency of assembly.
4, the injector for medical purpose of the anti-air stream contamination of the use process, by the way that rubber sleeve is arranged, so that the rubber of medical staff
Gloves can form the rubber mechanism of a sealing with rubber sleeve, greatly ensure that and taking the entire pushing cylinder of liquid process will not be because of
Pressure change and import extraneous gas, increase the practicability of the device.
5, the injector for medical purpose of the anti-air stream contamination of the use process, the outside for being in syringe always by the way that air inlet is arranged,
It ensure that the part that rubber sleeve and medical staff's hand enter will not be into the inside of syringe, so as to avoid because of Medical gloves
On bacterium enter the problem of inside of syringe pollutes injection, ensure that the safety of whole device operational process.
6, the injector for medical purpose of the anti-air stream contamination of the use process, by the way that piston is arranged to multiple rubber rings, thus shape
Injection is reduced to reduce the probability that injection is contacted with the air on the left of piston at the mechanism that multilayer reinforces sealing
Contaminated probability, while rubber ring is arranged to two groups of colors, it facilitates wish personnel and the mobile observation of piston is cooperated to take liquid
Volume, ensure that the accuracy for taking liquid, avoid to take and pass through syringe needle during liquid outer gas stream is imported into asking inside syringe
Topic.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is current limliting box structure schematic diagram of the present invention；
Fig. 3 is current limliting box right side structural representation of the present invention；
Fig. 4 is pushing cylinder of the present invention and connecting rod junction structural schematic diagram；
Fig. 5 is pushing cylinder partial structurtes schematic top plan view of the present invention；
Fig. 6 is structure enlargement diagram at A of the present invention.
In figure: 1, syringe；11, syringe needle；2, pushing cylinder；21, venthole；22, connecting rod；23, rubber piston；24, air inlet；
25, mounting blocks；26, rubber sleeve；3, pushing block；4, mounting blocks；41, the first current limiting plate；42, the second current limiting plate；43, current limliting box；44,
Elastic ring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-6, a kind of injector for medical purpose of the anti-air stream contamination of use process, including syringe 1, the right side of syringe 1
It is fixedly installed with for taking liquid and the syringe needle of fluid injection 11, syringe needle 11 and 1 right side of syringe are interconnected, the left side spiral shell of syringe 1
Line is set with mounting blocks 4, and the right side of mounting blocks 4 is fixedly installed with the current limliting box 43 positioned at 1 inner cavity of syringe, current limliting box 43 it is interior
Wall is successively fixedly installed with the first current limiting plate 41 and the second current limiting plate 42 for limiting air velocity from left to right, syringe 1
Inner cavity is movably installed with rubber piston 23, and mounting blocks 25 are fixedly installed in the middle part of 23 left side of rubber piston, mounting blocks 25
Left side offers threaded hole compatible with 21 right end of venthole, by the way that mounting blocks 25 are arranged, so that assembling the syringe
In the process, the inside that rubber piston 23 is first placed on to syringe 1 is only needed, mounting blocks 4 and current limliting box 43 are finally assembled, by pushing cylinder
2 are inserted directly into the inside of syringe 1 and are directed at the rotation of mounting blocks 25, greatly simplify the assembly of piston and push rod, increase
The feasibility and high efficiency of the production assembly of the device, the right side of rubber piston 23 is fixedly installed with connecting rod 22, rubber
Piston 23 is five rubber ring high temperature weldings, and is located at the white shape of rubber ring of the leftmost side, remaining rubber ring is that tradition is black
Color shape, by the way that piston is arranged to multiple rubber rings, thus formed multilayer reinforce sealing mechanism, thus reduce injection with
The probability of air contact on the left of piston, reduces the contaminated probability of injection, while rubber ring is arranged to two groups of colors,
Facilitating wish personnel cooperates the mobile observation of piston to take the volume of liquid, ensure that the accuracy for taking liquid, avoids and take liquid process
In by syringe needle 11 by outer gas stream import syringe 1 inside problem, the right side of connecting rod 22 is fixedly installed with pushing cylinder 2, pushes away
The pushing block 3 that the left end of cylinder 2 sequentially passes through current limliting box 43 and mounting blocks 4 and is fixedly installed with outside syringe 1, the top of pushing cylinder 2
Portion offers air inlet 24, and the cross section of air inlet 24 is the half of cost thumbnail size, and pacifies at 24 top edge of air inlet
Allow the rubber gloves of medical staff and the formation of rubber sleeve 26 one close by the way that rubber sleeve 26 is arranged equipped with rubber sleeve 26
The rubber mechanism of envelope greatly ensure that and take the entire pushing cylinder 2 of liquid process will not to import extraneous gas because of pressure change, increase
The practicability of the device is added, the distance of air inlet 24 to rubber piston 23 is consistent with the length value of syringe 1, by the way that air inlet is arranged
Mouth 24 is in the outside of syringe 1 always, ensure that the part that rubber sleeve 26 and medical staff's hand enter will not enter syringe 1
Inside guarantees so as to avoid because of the problem of inside that the bacterium on Medical gloves enters syringe 1 pollutes injection
The safety of whole device operational process；
The inside of pushing cylinder 2 is cavity, and the volume of cavity is 2/3rds of 1 cavity volume of syringe, the area of 2 right side of pushing cylinder
Greater than connecting rod 22, the right side of pushing cylinder 2 offers the venthole 21 positioned at 22 edge of connecting rod, and the quantity of venthole 21 is eight
A, the inner wall shape of the first current limiting plate 41 and current limliting box 43 is at α angle, and the inner wall shape of the second current limiting plate 42 and current limliting box 43 is at angle β, the
The middle part of one current limiting plate 41 and the second current limiting plate 42 is respectively equipped with the first movement hole for facilitating pushing cylinder 2 mobile and the second moving hole,
And the cross-sectional area in first movement hole is twice of the second mobile empty cross section, the first current limiting plate 41 and 43 shape of current limliting box are at α angle
Range be 100 degree to 150 degree, the second current limiting plate 42 and the at angle β range of 43 shape of current limliting box are 50 degree to 100
Degree, and the angle α and β angular difference are 50 degree, are carried out by the setting angle α and the angle β to the air-flow entered inside syringe 1 by mounting blocks 4
Secondary speed limit greatly reduces the flow velocity of the process air-flow, so that unclamping air inlet 24, air inlet 24 in injection process
The flow velocity of air-flow is much larger than the gas flow rate entered in syringe 1 from mounting blocks 4 in the gas passage formed with venthole 21, so that
Supplemental air flow into 1 inner cavity of syringe is the germ-free air flow of original state, so that external air flow can not be into injection process
The inner cavity for entering syringe 1 ensure that injection is in germ-free condition always, then reduces injection process and the probability infected occurs,
The right side of current limliting box 43 offers through-hole compatible with pushing cylinder 2, and the surface of through-hole is equipped with elastic ring 44, current limliting box 43
It is funnel-shaped, and the area of the right side of current limliting box 43 be less than 43 left side of current limliting box area, the inner surface of elastic ring 44 with
The outer surface frictional connection of pushing cylinder 2.
When use: original state, rubber piston 23 are located at the rightmost side of 1 inner cavity of syringe, and air inlet 24 is located at installation at this time
The left of block 4, the gas in 2 cavity of inside and pushing cylinder of syringe 1 is aseptic gas by disinfection；
Drawing liquid state takes out the syringe from aseptic packaging, and syringe needle 11 is inserted into medicinal liquid bottle, then will wear gloves
Finger is pressed in air inlet 24, allows rubber sleeve 26 to be in sealing state with rubber gloves and air inlet 24 is pulled to move to right, root
According to the scale of syringe exterior, scheduled medicament is taken out, rubber piston 23 is moved to left in the inside of syringe 1 at this time, so that in syringe 1
The air-flow in portion passes through the slow outlet of mounting blocks 4；
Syringe needle 11 is inserted into predetermined injection position by fluid injection state, and finger is unclamped from air inlet 24, then pushes pushing block 3, so that
Rubber piston 23 moves to right, and the air velocity that air inlet 24 is connected to 1 inner cavity of syringe with venthole 21 at this time, which is greater than from mounting blocks 4, to be entered
The clean air of air velocity inside syringe 1, final 2 internal cavities of pushing cylinder is supplemented to the inside of syringe 1, is finally completed note
It penetrates.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of injector for medical purpose of the anti-air stream contamination of use process, including syringe (1), it is characterised in that: the syringe (1)
Right side is fixedly installed with for taking liquid and the syringe needle of fluid injection (11), and the syringe needle (11) and syringe (1) right side are interconnected, institute
The left side thread bush of syringe (1) is stated equipped with mounting blocks (4), the right side of the mounting blocks (4) is fixedly installed with positioned at syringe
(1) inner wall of the current limliting box (43) of inner cavity, the current limliting box (43) is successively fixedly installed with for limiting air stream from left to right
The first current limiting plate (41) and the second current limiting plate (42) of speed, the inner cavity of the syringe (1) is movably installed with rubber piston (23), institute
The right side for stating rubber piston (23) is fixedly installed with connecting rod (22), and the right side of the connecting rod (22), which is fixedly installed with, to push away
Cylinder (2), the left end of the pushing cylinder (2) sequentially passes through current limliting box (43) and mounting blocks (4) and is fixedly installed with positioned at syringe (1) outside
The pushing block (3) in portion offers air inlet (24) at the top of the pushing cylinder (2)；The inside of the pushing cylinder (2) is cavity, and cavity
Volume be 2/3rds of syringe (1) cavity volume, the area of pushing cylinder (2) right side is greater than connecting rod (22), described
The right side of pushing cylinder (2) offers the venthole (21) positioned at connecting rod (22) edge, and the quantity of the venthole (21) is eight
A, first current limiting plate (41) and the inner wall shape of current limliting box (43) are at α angle, second current limiting plate (42) and current limliting box (43)
Inner wall shape it is at angle β, the right side of the current limliting box (43) offers and pushing cylinder (2) compatible through-hole, and the surface of through-hole
It is equipped with elastic ring (44), the inner surface of the elastic ring (44) and the outer surface frictional connection of pushing cylinder (2).
2. a kind of injector for medical purpose of the anti-air stream contamination of use process according to claim 1, it is characterised in that: the rubber
It is fixedly installed with mounting blocks (25) in the middle part of glue piston (23) left side, the left side of the mounting blocks (25) offers and ventilates
The compatible threaded hole of hole (21) right end.
3. a kind of injector for medical purpose of the anti-air stream contamination of use process according to claim 1, it is characterised in that: described
The first movement hole for facilitating pushing cylinder (2) mobile and second is respectively equipped in the middle part of one current limiting plate (41) and the second current limiting plate (42) to move
Dynamic hole, and the cross-sectional area in first movement hole is twice of the second mobile empty cross section.
4. a kind of injector for medical purpose of the anti-air stream contamination of use process according to claim 1, it is characterised in that: described
One current limiting plate (41) and current limliting box (43) shape range at α angle are 100 degree to 150 degree, second current limiting plate (42)
It is 50 degree to 100 degree with the at angle β range of current limliting box (43) shape, and the angle α and β angular difference are 50 degree.
5. a kind of injector for medical purpose of the anti-air stream contamination of use process according to claim 1, it is characterised in that: it is described into
The cross section of port (24) is the half of cost thumbnail size, and installs rubber sleeve (26) at air inlet (24) top edge.
6. a kind of injector for medical purpose of the anti-air stream contamination of use process according to claim 1, it is characterised in that: it is described into
The distance of port (24) to rubber piston (23) is consistent with the length value of syringe (1).
7. a kind of injector for medical purpose of the anti-air stream contamination of use process according to claim 1, it is characterised in that: the rubber
Glue piston (23) is five rubber ring high temperature weldings, and is located at the white shape of rubber ring of the leftmost side, remaining rubber ring is to pass
System black powder.
8. a kind of injector for medical purpose of the anti-air stream contamination of use process according to claim 1, it is characterised in that: the limit
Stream box (43) is funnel-shaped, and the area of the right side of current limliting box (43) is less than the area of current limliting box (43) left side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110332.5A CN112827018B (en) | 2019-01-15 | 2019-01-15 | Medical injector capable of preventing air flow pollution in use process |
| CN201910035482.7A CN109498910B (en) | 2019-01-15 | 2019-01-15 | Medical injector capable of preventing air flow pollution in use process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035482.7A CN109498910B (en) | 2019-01-15 | 2019-01-15 | Medical injector capable of preventing air flow pollution in use process |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110110332.5A Division CN112827018B (en) | 2019-01-15 | 2019-01-15 | Medical injector capable of preventing air flow pollution in use process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109498910A true CN109498910A (en) | 2019-03-22 |
| CN109498910B CN109498910B (en) | 2021-03-19 |
Family
ID=65757980
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110110332.5A Active CN112827018B (en) | 2019-01-15 | 2019-01-15 | Medical injector capable of preventing air flow pollution in use process |
| CN201910035482.7A Active CN109498910B (en) | 2019-01-15 | 2019-01-15 | Medical injector capable of preventing air flow pollution in use process |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110110332.5A Active CN112827018B (en) | 2019-01-15 | 2019-01-15 | Medical injector capable of preventing air flow pollution in use process |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN112827018B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050101920A1 (en) * | 2003-11-06 | 2005-05-12 | Paul Keane | Plunger rod for arterial blood collection syringes |
| US7081107B2 (en) * | 2002-07-02 | 2006-07-25 | Terumo Kabushiki Kaisha | Syringe and prefilled syringe |
| CN101018576A (en) * | 2004-07-01 | 2007-08-15 | 韦斯特制药服务公司 | Syringe device having venting system |
| CN203107870U (en) * | 2013-03-15 | 2013-08-07 | 万建云 | Novel anti-contamination injection syringe |
| CN203107866U (en) * | 2013-02-28 | 2013-08-07 | 安徽医学高等专科学校 | Disposable anti-pollution injection syringe |
| US20160175537A1 (en) * | 2011-05-13 | 2016-06-23 | Thorne Consulting And Intellectual Property, Llc | Dual-chamber syringe and associated connecting systems |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3666351D1 (en) * | 1986-08-01 | 1989-11-23 | Vetter Helmut | Syringe for medicinal purposes |
| US6117112A (en) * | 1997-11-18 | 2000-09-12 | Mahurkar; Sakharam D. | Single-use safety syringe |
| GB2471304B (en) * | 2009-06-24 | 2013-12-11 | Oval Medical Technologies Ltd | A pre-filled syringe or autoinjector |
| EP2605814B1 (en) * | 2010-08-19 | 2018-04-18 | Novo Nordisk A/S | Medical auto-injection device for manual needle insertion having needle shield, damping mechanism and audible and tactile feedback |
| CN202620382U (en) * | 2012-06-30 | 2012-12-26 | 高山 | Disposable sterile injector |
| CN207654486U (en) * | 2017-06-28 | 2018-07-27 | 刘海燕 | Asepsis injector |
-
2019
- 2019-01-15 CN CN202110110332.5A patent/CN112827018B/en active Active
- 2019-01-15 CN CN201910035482.7A patent/CN109498910B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7081107B2 (en) * | 2002-07-02 | 2006-07-25 | Terumo Kabushiki Kaisha | Syringe and prefilled syringe |
| US20050101920A1 (en) * | 2003-11-06 | 2005-05-12 | Paul Keane | Plunger rod for arterial blood collection syringes |
| CN101018576A (en) * | 2004-07-01 | 2007-08-15 | 韦斯特制药服务公司 | Syringe device having venting system |
| US20160175537A1 (en) * | 2011-05-13 | 2016-06-23 | Thorne Consulting And Intellectual Property, Llc | Dual-chamber syringe and associated connecting systems |
| CN203107866U (en) * | 2013-02-28 | 2013-08-07 | 安徽医学高等专科学校 | Disposable anti-pollution injection syringe |
| CN203107870U (en) * | 2013-03-15 | 2013-08-07 | 万建云 | Novel anti-contamination injection syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112827018B (en) | 2022-07-26 |
| CN109498910B (en) | 2021-03-19 |
| CN112827018A (en) | 2021-05-25 |
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