CN208574099U - A kind of high pressure injector syringe - Google Patents
A kind of high pressure injector syringe Download PDFInfo
- Publication number
- CN208574099U CN208574099U CN201721428143.8U CN201721428143U CN208574099U CN 208574099 U CN208574099 U CN 208574099U CN 201721428143 U CN201721428143 U CN 201721428143U CN 208574099 U CN208574099 U CN 208574099U
- Authority
- CN
- China
- Prior art keywords
- piston
- push rod
- distance
- buckles
- buckle
- 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.)
- Active
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of high pressure injector syringes, including syringe barrel, piston and push rod, wherein the piston is connected with the push rod, and the piston is moved back and forth in the syringe barrel by the driving of the push rod；The syringe barrel outer surface is equipped with fixed groove, and the fixed groove is connected with the buckle of contrast medium injection deivice, so that the syringe barrel is fixed on contrast medium injection deivice；The logical design piston of the utility model and push rod snap connection mode, can effectively improve the intensity of product, relative to integrally formed piston and push rod, not allow easy fracture more；The side wall of two buckles on piston is thickeied simultaneously, and the outer diameter of increasing buckle side circular arc wall forms it by straight line and camber line closer to straight line or side wall, the side wall of buckle can both thickeied and is unlikely to again due to increase wall thickness and bring injection defect.
Description
Technical field
The utility model relates to Medical Devices equipment technology fields, and in particular to a kind of high pressure injector syringe.
Background technique
High pressure injector syringe is a kind of disposable medical instrument consumptive material that high pressure injector coordinative composition of equipments uses, Ke Yian
On contrast medium injection deivice, for the liquid such as salt water, contrast agent to be injected human body, to enhance medical imaging, such as enhance
The scanning effect of MRI nuclear mangetic resonance-CT diagnostic instrments or CT.In high pressure injector syringe use process, it is desirable that needle
The movement of cylinder inner piston is reliable, steady, avoids piston and coupled push rod from the phenomenon that fracture, deformation occur, to cause
Uncertain potential risk in medical procedure.
In the prior art, the piston of high pressure injector syringe is all made of Shooting Technique completion, and Shooting Technique is one special
Technique, the mechanical properties such as intensity of product are difficult to go to assess by subsequent detection, and when produced in large volumes, it may appear that missing inspection
The case where, therefore the design of product is most important.When designed piston is unreasonable, the piston of injection molding just will appear contracting
Situations such as water, deformation, the decline of product strength is in turn resulted in, is easily broken off；Existing market is afloat, and cylinder piston is using
There is the case where fracture when in the process, to cause unnecessary medical-risk.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts and insufficient, providing one kind, to effectively improve product strong
Degree, it is not easy to the high pressure injector syringe of fracture.
The purpose of this utility model is achieved through the following technical solutions:
A kind of high pressure injector syringe, including syringe barrel, piston and push rod, wherein the piston and the push rod phase
Connection, and the piston is moved back and forth in the syringe barrel by the driving of the push rod；The syringe barrel outer surface
Equipped with fixed groove, the fixed groove is connected with the buckle of contrast medium injection deivice, so that the syringe barrel be fixed
On contrast medium injection deivice；
Structure cylindrical in the middle part of the piston, the piston base are in conical structure, the upper table of the top land
Face is set there are two buckling, and is respectively equipped with inside protrusion at the top of described two buckle inner walls, described two protrusions are corresponding to be set
It sets；The top land upper surface is equipped with fixed circular hole, and the fixed circular hole is between described two buckles, and described solid
The diameter of circular hole is determined less than the distance between the protrusion on described two buckles；
The push rod top is divided into the part of upper, middle and lower three, wherein push rod top top is integrally in cylindrical body knot
Structure, and the diameter of the cylindrical body is identical as the fixed diameter of circular hole in the top land upper surface, the cylindrical body on the top can
It protrudes into fixed in the fixed circular hole；The shape of push rod top middle portion cross section is made of two sections of straight lines and two sections of camber lines
, straight line and camber line are to be alternatively arranged and end to end, and the distance between described two sections of camber line vertex are greater than described two cards
The distance between protrusion buckled, and the distance between described two sections of camber line vertex be less than it is described two buckle inner walls between away from
From the distance between described two sections of straight lines are less than the distance between the protrusion on described two buckles；Push rod top lower part
Whole is in cylindrical structure, and the diameter of the cylindrical body is less than the distance between the protrusion on described two buckles.
Preferably, the distance between described two buckle inner walls are 20~24mm；Between protrusion on described two buckles
Distance be 16~18mm；The wall thickness of the buckle is 2.7~3.2mm；Two sections of camber line vertex of the push rod top middle portion it
Between distance be 21~23mm.
Preferably, the distance between described two buckle inner walls are 12~14mm；Between protrusion on described two buckles
Distance be 8~10mm；The wall thickness of the buckle is 1.8~3mm；Between two sections of camber line vertex of the push rod top middle portion
Distance is 12~13mm.
Preferably, the top land and two buckles on setting surface on the top are made of ebonite material, are made
It can be guaranteed in two buckles that push rod top is snapped firmly on piston with ebonite material；Cylindrical knot in the middle part of the piston
Structure and the conical structure of piston base are made of flexible glue material, can be made in the middle part of piston using flexible glue material and bottom is in needle
Achieve the effect that sealing in cylinder cylinder.
Working principle of the utility model is:
In use, push rod top middle portion to be passed through to the protrusions of two of piston buckles, the cylinder on push rod top top at this time
Body protrudes into the fixation circular hole on piston, and push rod is rotated by 90 °, and the circular arc portion of push rod top middle portion is made to be stuck in two cards of piston
In the protrusion of button, achieve the effect that push rod and piston are fixed；Piston is pushed into syringe barrel by push rod later, at this time piston
It is assemblied in syringe barrel to form semi-enclosed cavity；By the buckle of the fixed groove of syringe barrel and contrast medium injection deivice
Cooperation is to make syringe barrel be fixed on contrast medium injection deivice；Push rod pull or push piston moved in syringe barrel from
And complete to inhale the operation of medicine or injection.
The utility model have compared with prior art it is below the utility model has the advantages that
(1) the logical design piston of the utility model and push rod snap connection mode, can effectively improve the intensity of product, phase
For integrally formed piston and push rod, easy fracture is not allowed more；The side wall of two buckles on piston is thickeied simultaneously, and
The outer diameter for increasing buckle side circular arc wall forms it by straight line and camber line closer to straight line or side wall, can both make to buckle
Side wall thicken and be unlikely to again due to increasing wall thickness and bring injection defect, to avoid glue thickness bring shrink problem, again
The intensity that ensure that piston and buckle thereon improves the fastness that upper protrusion is buckled positioned at piston, reduces potential medical wind
Danger；
(2) top end face of the utility model buckle is a great circle cambered surface, increases a chamfering in arc surface and reduces wall thickness,
It strengthens the connection with push rod and avoids the shrink problem of wall thickness；
(3) to guarantee that piston buckles the fastness and stability mutually detained with push rod, the utility model reduces push rod top
Size can guarantee the stability of fastening simultaneously again, and reduce the size on push rod top, thus will when syringe barrel easy to disassemble
Piston is successfully extracted, and avoids the contrast agent in cylinder is unrestrained from coming out to pollute medical environment.
Detailed description of the invention
Fig. 1 is the attachment structure schematic diagram of the utility model piston and push rod；
Fig. 2 is the structural schematic diagram of the utility model piston and syringe barrel；
Fig. 3 is the structural schematic diagram of the utility model piston；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the structural schematic diagram of the utility model push rod；
Fig. 6 is the top view of Fig. 5.
Appended drawing reference in figure are as follows: 1, syringe barrel；2, piston；3, push rod；4, it buckles；5, raised；6, fixed groove；7, solid
Determine circular hole.
Specific embodiment
The present invention will be further described in detail with reference to the embodiments and the accompanying drawings, but the implementation of the utility model
Mode is without being limited thereto.
As shown in figs. 1 to 6, a kind of high pressure injector syringe, including syringe barrel 1, piston 2 and push rod 3, wherein described
Piston 2 is connected with the push rod 3, and the piston 2 is backhauled in the syringe barrel 1 by the driving of the push rod 3
It is dynamic；1 outer surface of syringe barrel is equipped with fixed groove 6, and the fixed groove 6 is connected with the buckle of contrast medium injection deivice
It connects, so that the syringe barrel 1 is fixed on contrast medium injection deivice；
As shown in figs. 34, the 2 middle part structure cylindrical of piston, 2 bottom of piston is in conical structure, described
The upper surface at 2 top of piston is set there are two buckling 4, is respectively equipped with inside protrusion 5, institute at the top of 4 inner walls of described two buckles
The corresponding setting of two protrusions 5 is stated, specifically, 2 top of piston and two buckles 4 that surface on the top is arranged are equal
It is made of ebonite material, can be guaranteed in two buckles 4 that 3 top of push rod is snapped firmly on piston 2 not using ebonite material
To abjection, the conical structure of 2 bottom of cylindrical structure and piston at 2 middle part of piston is made of flexible glue material, is used
Flexible glue material can make 2 middle part of piston and bottom achieve the effect that sealing in syringe barrel 1；2 dome top surface of piston
Equipped with fixed circular hole 7, and the fixed circular hole 7 is located between described two buckles 4, and the diameter of the fixed circular hole 7 is less than
The distance between protrusion 5 on described two buckles 4；
As shown in Fig. 5~6,3 top of push rod is divided into the part of upper, middle and lower three, wherein the 3 top top of push rod
Whole is in cylindrical structure, and the diameter of the cylindrical body is identical as the fixed diameter of circular hole 7 of 2 dome top surface of piston,
The cylindrical body on the top can protrude into fixed in the fixed circular hole 7；The shape of the 3 top middle portion cross section of push rod is by two sections
Straight line and two sections of camber lines composition, straight line and camber line are to be alternatively arranged and end to end, between two sections of camber line vertex
Distance is greater than the distance between the protrusion 5 on described two buckles 4, and the distance between described two sections of camber line vertex are less than described
The distance between two 4 inner walls of buckle, the distance between described two sections of straight lines are less than between the protrusion 5 on described two buckles 4
Distance；The 3 top lower part of push rod is integrally in cylindrical structure, and the diameter of the cylindrical body is less than described two buckles 4
On the distance between protrusion 5.
As shown in Fig. 3, Fig. 4 and Fig. 6, there are two types of piston 2 and push rod 3 designs of the high pressure injector syringe of the utility model
Size:
It is 20~24mm one is the distance between 4 inner walls of described two buckles A；It is described two buckle 4 on protrusions 5 it
Between distance B be 16~18mm；The wall thickness C of the buckle 4 is 2.7~3.2mm；Two sections of camber lines of 3 top middle portion of push rod
The distance between vertex D is 19~23mm；
Another kind is that the distance between 4 inner walls of described two buckles A is 12~14mm；Protrusion 5 on described two buckles 4
The distance between B be 8~10mm；The wall thickness C of the buckle 4 is 1.8~3mm；Two sections of camber line tops of 3 top middle portion of push rod
The distance between point D is 11~13mm.
In use, 3 top middle portion of push rod to be passed through to the protrusion 5 of two of piston 2 buckles 4,3 top top of push rod at this time
Cylindrical body protrudes into the fixation circular hole 7 on piston 2, and push rod 3 is rotated by 90 °, and the circular arc portion of 3 top middle portion of push rod is made to be stuck in piston 2
Two buckle 4 protrusion 5 in, achieve the effect that push rod 3 and piston 2 fixation；Piston 2 is pushed by syringe by push rod 3 later
In cylinder 1, piston 2 is assemblied in syringe barrel 1 to form semi-enclosed cavity at this time；By the fixed groove 6 of syringe barrel 1 with
Contrast medium injection deivice is clasped so that syringe barrel 1 be made to be fixed on contrast medium injection deivice；Push rod 3 is pulled or is pushed
Piston 2 moves the operation for completing to inhale medicine or injection in syringe barrel 1.
The logical design piston of the utility model and push rod snap connection mode, can effectively improve the intensity of product, relatively
In integrally formed piston and push rod, more it is not easy to be easily broken off；The side wall of two buckles on piston is thickeied simultaneously,
And the outer diameter for increasing buckle side circular arc wall forms it by straight line and camber line closer to straight line or side wall, can both make card
The side wall of button, which thickeies, to be unlikely to again due to increase wall thickness and bring injection defect, so that glue thickness bring shrink problem is avoided,
The intensity in turn ensuring piston and buckling thereon improves the fastness that upper protrusion is buckled positioned at piston, reduces potential medical treatment
Risk；The top end face of buckle is a great circle cambered surface, increases a chamfering in arc surface and reduces wall thickness, strengthens the company with push rod
Connect and avoid the shrink problem of wall thickness；To guarantee that piston buckles the fastness and stability mutually detained with push rod, the utility model subtracts
The size on small push rod top can guarantee the stability of fastening simultaneously again, and reduce the size on push rod top, thus easy to disassemble
Piston is successfully extracted when syringe barrel, avoids the contrast agent in cylinder is unrestrained from coming out to pollute medical environment.
Above-mentioned is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above content
It limits, it is made under other any spiritual essence and principles without departing from the utility model to change, modification, substitution, combine, letter
Change, should be equivalent substitute mode, be included within the protection scope of the utility model.
Claims (4)
1. a kind of high pressure injector syringe, which is characterized in that including syringe barrel, piston and push rod, wherein the piston and institute
It states push rod to be connected, and the piston is moved back and forth in the syringe barrel by the driving of the push rod；The syringe cylinder
External surface is equipped with fixed groove, and the fixed groove is connected with the buckle of contrast medium injection deivice, thus by the syringe
Cylinder is fixed on contrast medium injection deivice；
Structure cylindrical in the middle part of the piston, the piston base are in conical structure, and the upper surface of the top land is set
There are two buckle, inside protrusion, described two corresponding settings of protrusion are respectively equipped at the top of described two buckle inner walls；Institute
It states top land upper surface and is equipped with fixed circular hole, and the fixed circular hole is positioned at described two buckles between, and described fixed justify
The diameter in hole is less than the distance between the protrusion on described two buckles；
The push rod top is divided into the part of upper, middle and lower three, wherein and push rod top top is integrally in cylindrical structure, and
The diameter of the cylindrical body is identical as the fixed diameter of circular hole in the top land upper surface, and the cylindrical body on the top can protrude into institute
It states fixed in fixed circular hole；The shape of push rod top middle portion cross section is made of two sections of straight lines and two sections of camber lines, directly
Line and camber line are to be alternatively arranged and end to end, and the distance between described two sections of camber line vertex are greater than on described two buckles
The distance between protrusion, and the distance between described two sections of camber line vertex are less than the distance between described two buckle inner walls, institute
The distance between two sections of straight lines are stated less than the distance between the protrusion on described two buckles；Push rod top lower part is integrally in
Cylindrical structure, and the diameter of the cylindrical body is less than the distance between the protrusion on described two buckles.
2. high pressure injector syringe according to claim 1, which is characterized in that the distance between described two buckle inner walls
For 20~24mm；The distance between protrusion on described two buckles is 16~18mm；The wall thickness of the buckle be 2.7~
3.2mm；The distance between two sections of camber line vertex of the push rod top middle portion are 19~23mm.
3. high pressure injector syringe according to claim 1, which is characterized in that the distance between described two buckle inner walls
For 12~14mm；The distance between protrusion on described two buckles is 8~10mm；The wall thickness of the buckle is 1.8~3mm；
The distance between two sections of camber line vertex of the push rod top middle portion are 11~13mm.
4. high pressure injector syringe according to claim 1, which is characterized in that the top land and setting are at top
Two buckles of upper surface are made of ebonite material；The cone knot of cylindrical structure and piston base in the middle part of the piston
Structure is made of flexible glue material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721428143.8U CN208574099U (en) | 2017-10-31 | 2017-10-31 | A kind of high pressure injector syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721428143.8U CN208574099U (en) | 2017-10-31 | 2017-10-31 | A kind of high pressure injector syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208574099U true CN208574099U (en) | 2019-03-05 |
Family
ID=65499693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721428143.8U Active CN208574099U (en) | 2017-10-31 | 2017-10-31 | A kind of high pressure injector syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208574099U (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 |
-
2017
- 2017-10-31 CN CN201721428143.8U patent/CN208574099U/en active Active
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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190336707A1 (en) | Fluid injection pressure control syringe | |
| CN208574099U (en) | A kind of high pressure injector syringe | |
| CN204446814U (en) | Single use injection with low resistance | |
| CN203971079U (en) | Disconnection-preventing syringe | |
| CN203988180U (en) | A kind of medical fluorescence surgical suture needle | |
| CN207545133U (en) | For the puncture outfit of thoracoscopic operation | |
| CN204454510U (en) | A kind of jack devices facilitating oral liquid bottle intubate | |
| CN209253727U (en) | A kind of facial fat suction needle tubing | |
| CN209154752U (en) | Safety self-destructing insulin syringe | |
| CN202724383U (en) | Disposable safe self-destroying type injection device | |
| CN204637188U (en) | A kind of insulin needle location-plate that can regulate housing size | |
| CN203598314U (en) | Injector | |
| CN202446583U (en) | Injector | |
| CN210078490U (en) | Pressure extension tube used in cooperation with high-pressure syringe in interventional operation | |
| CN203815992U (en) | One-time auto-destruct syringe | |
| CN201631837U (en) | Self-destroying injector | |
| CN212816493U (en) | Bone cement injection device | |
| CN202236711U (en) | Disposable and self-destructive syringe | |
| CN218186857U (en) | Abdominal wall puncture stitching instrument | |
| CN202875971U (en) | Syringe | |
| CN211536029U (en) | Medical syringe needle fastener | |
| CN204484954U (en) | Trace anesthetic syringe | |
| CN208943110U (en) | Type self-destroyed two-piece-dress syringe | |
| CN201840728U (en) | Steel needle retraction syringe | |
| CN209301906U (en) | A kind of high-reliability self-destruction syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |