CN209173120U - High-pressure syringe piston and its matching used high pressure injector - Google Patents
High-pressure syringe piston and its matching used high pressure injector Download PDFInfo
- Publication number
- CN209173120U CN209173120U CN201820556315.8U CN201820556315U CN209173120U CN 209173120 U CN209173120 U CN 209173120U CN 201820556315 U CN201820556315 U CN 201820556315U CN 209173120 U CN209173120 U CN 209173120U
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- CN
- China
- Prior art keywords
- sealing ring
- pressure
- pedestal
- syringe piston
- injector
- 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.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a kind of high-pressure syringe piston and its matching used high pressure injectors, belong to the field of medical instrument technology, including pedestal, sealing ring card slot is arranged in the middle position of pedestal, sealing ring is provided on sealing ring card slot, at least provided with a sealing ring, sealing ring is semi-cylindrical hill structure in the outside of sealing ring, sealing ring and sealing ring are integrally machined molding, and fixing end is arranged in the rear portion of pedestal.The utility model structure is simple, and rationally, easy to use, sealing effect is good, can reduce use cost, prolongs the service life for design, avoids generating liquid medicine contamination, improves biological safety and safety in utilization, has stronger practicability.
Description
Technical field
The utility model relates to a kind of high-pressure syringe piston and its matching used high pressure injectors, belong to medical instrument
Technical field.
Background technique
Radiography may be used during diagnosis at present, and radiography would generally use and arrive high-pressure contrast syringe,
But presently used high-pressure contrast syringe has the following problems: first is that, piston mostly uses natural rubber to be made, quality
It is partially soft, it easily deforms in long-time use process, not only will cause leakage, also will increase use cost；Second is that rubber is living
Plug in the production process, can be added using auxiliary agents such as promotor, vulcanizing agent, anti-aging agents, can ooze out product surface in use process,
Pollute medical fluid；Third is that since medical fluid type is more, the not acid and alkali-resistance of rubber piston, corrosion will cause seal failure, influence to produce
The normal use of product.
Utility model content
According to the above-mentioned deficiencies in the prior art, problem to be solved in the utility model is: it is simple to provide a kind of structure, if
Rationally, easy to use, sealing effect is good, can reduce use cost, prolongs the service life for meter, avoids the height for generating liquid medicine contamination
Press syringe piston and its matching used high pressure injector.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
Sealing ring card slot, sealing ring card slot is arranged in the middle position of the high-pressure syringe piston, including pedestal, pedestal
On be provided with sealing ring, at least provided with a sealing ring, sealing ring is semi-cylindrical hill structure, sealing ring in the outside of sealing ring
It is integrally machined molding with sealing ring, fixing end is arranged in the rear portion of pedestal.
High-pressure syringe piston is by using hard medical plastic as pedestal, and when in use, pan frontward end connects with medical fluid
Touching not only avoids rubber piston not seal failure caused by acid and alkali-resistance, corrosion, it is thus also avoided that promotor, sulphur in use process
The rubber chemicals such as agent, anti-aging agent ooze out product surface and pollute medical fluid, improve biological safety and safety in utilization, meanwhile,
The whole installation of pedestal, which can be avoided in use process, to deform, and extends the service life of product, reduces use cost,
The setting of base engagement sealing ring, sealing ring ensure that the sealing effect of piston, and structure is simple, and design is rationally, easy to use,
It is highly-safe, there is stronger practicability.
Further preferred, sealing ring is arranged two and is separately positioned on the both ends of sealing ring, and the radius of sealing ring is
0.1mm-2mm guarantees sealing effect.
Further preferred, the material of pedestal uses medical plastic, and pan frontward end is set as pyramidal structure, angle 120
Degree -180 degree, medical plastic use TPE or PP.
Further preferably sealing ring and sealing ring card slot by interference fit or are bonded as one, and are connected and fixed conveniently.
It is a kind of to live with the matching used high pressure injector of high-pressure syringe piston, including injector syringe and high pressure injector
Plug, high-pressure syringe piston are arranged on the inside of injector syringe, and high-pressure syringe piston and injector syringe pass through outside sealing ring
The sealing ring of side and the inner wall of injector syringe are interference fitted and connect.
High pressure injector uses high-pressure syringe piston, passes through the interference fit of injector syringe inner wall and sealing ring, energy
Enough guarantee the leakproofness of use process, while the pedestal of medical plastic material, be not only able to avoid to deform in use process,
Also it is avoided that the pollution of medical fluid.
Beneficial effect possessed by the utility model is:
High-pressure syringe piston described in the utility model and its matching used high pressure injector structure are simple, and design is closed
Reason, it is easy to use, it is at low cost, it can reduce the influence of deformation of the use process mesohigh to sealing piston, ensure that high pressure injection
Emitter syringe leakproofness, long service life, while can be avoided rubber piston and being contacted with the direct of medical fluid, improve bio-safety
Property and safety in utilization, have stronger practicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model high-pressure syringe piston；
Fig. 2 is the structural schematic diagram of the utility model high pressure injector；
Wherein, 1, sealing ring；2, sealing ring；3, pedestal；4, sealing ring card slot；5, fixing end；6, high-pressure syringe piston；
7, injector syringe.
Specific embodiment
The embodiments of the present invention are described further with reference to the accompanying drawing:
As shown in Figure 1, high-pressure syringe piston described in the utility model, including pedestal 3, the interposition of pedestal 3 install
Sealing ring card slot 4 is set, sealing ring 1, sealing ring 1 and sealing ring card slot 4 are provided on sealing ring card slot 4 by interference fit or is glued
It is connected in one, at least provided with a sealing ring 2, sealing ring 2 is semi-cylindrical hill structure, 2 He of sealing ring in the outside of sealing ring 1
Sealing ring 1 is integrally machined molding, and fixing end 5 is arranged in the rear portion of pedestal 3.
The sealing ring 2 is arranged two and is separately positioned on the both ends of sealing ring 1, and the radius of sealing ring 2 is 0.1mm-
2mm.The material of pedestal 3 uses medical plastic, and 3 front end of pedestal is set as pyramidal structure, and angle is 120 degree -180 degree.
As shown in Fig. 2, the described in the utility model and matching used high pressure injector of high-pressure syringe piston, including note
Emitter syringe 7 and high-pressure syringe piston 6, for the setting of high-pressure syringe piston 6 in 7 inside of injector syringe, high pressure injector is living
Plug 6 and injector syringe 7 are interference fitted and are connected by the sealing ring 2 in 1 outside of sealing ring and the inner wall of injector syringe 7.
The working principle and use process of the utility model:
In use, high-pressure syringe piston 6 is installed into 7 inside of injector syringe, under the action of draft, by radiography
It needs medical fluid to be pumped into 7 inside of injector syringe, then pushes high-pressure syringe piston 6 to move forward under high pressure effect again,
Medical fluid is pushed into diagnosis position, whole process is 3 stress of pedestal, is not likely to produce deformation under high pressure.
The utility model structure is simple, and rationally, easy to use, use cost is low, and long service life, can reduce makes for design
Influence with process mesohigh to the deformation of sealing piston ensure that high pressure injector syringe leakproofness, while can be avoided rubber
Glue piston is directly contacted with medical fluid, improves biological safety and safety in utilization, has stronger practicability.
The utility model is not limited in above-mentioned specific embodiment, and those of ordinary skill in the art are in the utility model
The variations, modifications, additions or substitutions made in essential scope, should also belong to the protection scope of the utility model.
Claims (4)
1. a kind of high-pressure syringe piston, it is characterised in that: including pedestal (3), sealing ring card is arranged in the middle position of pedestal (3)
Slot (4) is provided with sealing ring (1) on sealing ring card slot (4), the outside of sealing ring (1) at least provided with a sealing ring (2),
Sealing ring (2) is semi-cylindrical hill structure, and sealing ring (2) and sealing ring (1) are integrally machined molding, the rear portion setting of pedestal (3)
Fixing end (5)；
The material of the pedestal (3) uses medical plastic, and pedestal (3) front end is set as pyramidal structure, and angle is 120 degree -180
Degree.
2. high-pressure syringe piston according to claim 1, it is characterised in that: the sealing ring (2) be arranged two and
The both ends of sealing ring (1) are separately positioned on, the radius of sealing ring (2) is 0.1mm-2mm.
3. high-pressure syringe piston according to claim 1, it is characterised in that: the sealing ring (1) and sealing ring card
Slot (4) is by interference fit or is bonded as one.
4. the matching used high pressure injector of high-pressure syringe piston described in a kind of and any of the above-described claim, feature exist
In: including injector syringe (7) and high-pressure syringe piston (6), high-pressure syringe piston (6) is arranged in injector syringe (7)
Inside, high-pressure syringe piston (6) and injector syringe (7) pass through the sealing ring (2) and injector syringe on the outside of sealing ring (1)
(7) inner wall is interference fitted connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820556315.8U CN209173120U (en) | 2018-04-18 | 2018-04-18 | High-pressure syringe piston and its matching used high pressure injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820556315.8U CN209173120U (en) | 2018-04-18 | 2018-04-18 | High-pressure syringe piston and its matching used high pressure injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209173120U true CN209173120U (en) | 2019-07-30 |
Family
ID=67358473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820556315.8U Expired - Fee Related CN209173120U (en) | 2018-04-18 | 2018-04-18 | High-pressure syringe piston and its matching used high pressure injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209173120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448765A (en) * | 2019-08-30 | 2019-11-15 | 深圳安特医疗股份有限公司 | Piston component and syringe |
-
2018
- 2018-04-18 CN CN201820556315.8U patent/CN209173120U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448765A (en) * | 2019-08-30 | 2019-11-15 | 深圳安特医疗股份有限公司 | Piston component and syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20210418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |