CN206081228U - Dosage control assembly and syringe - Google Patents
Dosage control assembly and syringe Download PDFInfo
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- CN206081228U CN206081228U CN201620548184.XU CN201620548184U CN206081228U CN 206081228 U CN206081228 U CN 206081228U CN 201620548184 U CN201620548184 U CN 201620548184U CN 206081228 U CN206081228 U CN 206081228U
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- syringe
- push rod
- dosage control
- dosage
- control piece
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Abstract
The utility model relates to a dosage control assembly and syringe. This syringe include hollow cylinder with can be in the cylinder axial motion's push rod, this cylinder do not has the flange with this push rod in its near -end punishment, this dosage control assembly include: the control junction surface, this control junction surface forms with the push rod is integrative, with dose control spare, this dose control spare can remove the ground joint with the control junction surface, before the injection, dose control spare joint control junction surface to the flange of the distally surface butt cylinder of dose control spare, when the injection, dose control spare is followed the control junction surface and is removed, and the push rod is advanced in the cylinder till the flange of the flange butt cylinder of push rod. This syringe can reduce to inject the inaccuracy, and is compatible with current cylinder structure to only need to increase an extra part. In addition, this syringe operation is quick easy.
Description
Technical field
The utility model is related to a kind of medical treatment device, relates in particular to dosage control assembly and syringe.
Background technology
In clinical practice, it is often necessary to by a small amount of drug injection of exact dose to patient's body.Herein, a small amount of medicine
The injection volume that referring to need to be expelled in patient's body accounts for the ratio of syringe total measurement (volume) and is less than 5%, 10%, 15% or 20%.
For example, in the treatment of ophthalmology disease (macular degeneration, vitreous opacity etc.), medical personnel are needed accurate agent
Eyes of a small amount of drug injection of amount to patient.
The several syringe for injecting a small amount of medicine of exact dose is there is in prior art.Note shown in Fig. 1
Emitter on syringe outer surface by carving the dosage that dose indicator line is injected come precise control.As shown in figure 1, syringe 1 ' can
With the needle assembly 4 ' for including hollow syringe 2 ', the push rod 3 ' being arranged in syringe 2 ' and be arranged on the far-end of syringe 2 ',
And the dose indicator line A ' for indicating medical personnel's injection dosage is carved with the outer surface of syringe 2 '.When using, medical personnel will
Syringe 1 ' be inverted and needle assembly 4 ' upward, distally advance push rod 3 ' and the distal end of the plug of the push rod 3 ' that detects by an unaided eye exist
Position in syringe 2 ', till dose indicator line A ' is arrived in the distal end, is now discharged by dischargeing overdose of medicine thing
Fall the bubble that may be included in syringe 1 '.The middle dosage tag line of syringe 2 ' A ' doses remaining below is the injection needed for patient
Dosage.Afterwards, medical personnel penetrate syringe needle in patient's body, so as to the doses remaining is conveyed to into patient.
In the operating process of said syringe, medical personnel need with the naked eye to judge to push away while push rod 3 ' is advanced
Whether the distal end of the plug of bar 3 ' is aligned with dose indicator line A '.Due to the collimation error such as looking up or overlooking, medical personnel are difficult to
The distal end of the plug of push rod 3 ' is accurately aligned with dose indicator line A ', so as to cannot accurately reserve required dosage.In addition,
Syringe 2 ' is generally fired by glass and formed, it is difficult to by the more complicated syringe needle junction surface of the distal side structure of syringe 2 ' (referring to Figure 1A institutes
Show) manufacturing tolerance control in the reasonable scope, so as to cause dose indicator line A ' spaces below injection volume not
Accurately, injection dosage is caused to produce unpredictable error then.Further, since syringe needle junction surface internal diameter reduces, on push rod 3 '
The distal end of plug cannot reach and produce the indefinite medicament residue of volume.Above-mentioned factor causes injection dosage to produce can not be pre-
The error of material, so as to the demand of accurate administration cannot be met.
The inexactness of injection dosage brings potential risks to clinic.Come especially for the syringe of ophthalmic remedy
Say, it usually needs injection dosage it is very little, magnitude is generally below 50 μ l, even as low as 10 μ l, and the minor alteration of dosage is all
Therapeutic effect may be made a significant impact.Therefore, any little error may all cause actual injection during manufacturing or operate
The change by a relatively large margin of dosage, so as to affecting therapeutic effect, even bringing potential injury.
CN204910353U discloses a kind of syringe accessory device, its dosage for including boost motor and matching with boost motor
Clamp.Boost motor is fixed in barrel flange by fixing groove, and with the cylinder of support dosage clamp.Dosage clamp leads to
Cross blessing position to sandwich on the cylinder of boost motor, and there are the dose ledges for controlling dosage on retaining part.
Before the injection, medical personnel distad promote push rod so as to push rod flange is resisted against in the dose ledges of dosage clamp.Subsequently,
Medical personnel remove dosage clamp from boost motor, leave the space corresponding to dose ledges thickness.Medical personnel by push rod to
Distally is forced through the space, so as to be expelled in patient's body corresponding to the drug dose of dose ledges thickness.The syringe
At least two extra parts (that is, boost motor and dosage clamp) are needed to realize dosage control.On the other hand, due to manufacturing work
The reasons such as skill, cannot accomplish precise match between fixing groove and needle tubing flange, therefore boost motor may axially be transported relative to syringe
It is dynamic, affect the accuracy of injection dosage.
US2475,939 disclose a kind of syringe, and the syringe is in the outer surface of push rod and the structure of expected matching
External screw thread and internal thread are respectively provided with surface.The cooperation of internal and external threads by the convert rotational motion of push rod into push rod in syringe
Axially-movable, so as to inject medicine.Medical personnel can control the agent of required injection by calculating the revolution of push rod rotation
Amount.Although this syringe can accomplish the precise control of injection dosage, required part is more and complex structure, and
Need to implement time-consuming rotation process using both hands during injection, i.e., one hand grips syringe and another hand rotating push rod, and this is not
Increase only operation difficulty and the injection time of medical personnel, and because syringe needle such as rocks at the discomfort that reason increased patient
Sense.
Accordingly, it would be desirable to invent a kind of novel injector for injecting a small amount of medicine of exact dose.The syringe can
Reduce the injection inexactness caused due to the collimation error, manufacturing process, medicament residue etc..The syringe can be with existing pin
Barrel structure is compatible, and need to only increase an extra part.In addition, the syringe needs operation quick easily, without the need for medical care
Personnel detect by an unaided eye.
Utility model content
According to one side of the present utility model, the utility model is related to a kind of dosage control assembly, the dosage control
Component is used for a small amount of drug dose of precise control syringe injection, and the syringe includes hollow syringe and can be in syringe
The push rod of interior axially-movable, the syringe and the push rod have respectively flange in its proximal end.The dosage control assembly bag
Include：Control piece junction surface, the control piece junction surface is integrally formed with push rod；With dosage control piece, the dosage control piece energy
It is enough removedly to engage with control piece junction surface；Wherein, before injection, dosage control piece Engagement Control part junction surface, and
The distal surface of dosage control piece abuts the flange of syringe；In injection, dosage control piece is removed from control piece junction surface, push rod
Advance in syringe till the flange of push rod abuts the flange of syringe.
Preferably, control piece junction surface is arranged on the underface of the flange of push rod, and including extension and groove.
Preferably, extension is extended laterally from push rod, and groove is arranged between the flange of push rod and extension.
Preferably, dosage control piece is the plate-like piece being inserted in the groove at control piece junction surface, the plate-like piece
With the thickness corresponding with the drug dose of required injection.
Preferably, the flange of extension and push rod is engaged, for dosage control piece to be maintained in groove, so as to anti-
Only dosage control piece is moved axially on push rod, but acceptable dose control piece is laterally removed from push rod.
Preferably, internal diameter of the external diameter of extension less than the opening of syringe near-end.
Preferably, extension is rounded, oval or polygon.
Preferably, dosage control piece includes the supporting leg of base portion and two L-shaped stretched out from base portion two ends.
Preferably, opposed facing two boss are provided with the inside of the free end of two supporting legs, between two boss
The thickness of push rod at distance slightly less than groove.
Preferably, base portion is provided with one or more the strip raised lines or groove for being easy to medical personnel to grasp.
Preferably, the farthest side of push rod is equipped with plug, and before injection with injection after, the plug of push rod it is remote
Side surface is located at the more uniform part of internal diameter of syringe.
Preferably, control piece junction surface is the through hole or otch being arranged on the push rod of syringe.
Preferably, dosage control piece be can be inserted into through hole either in otch and with through hole or the form fit of otch
Bar.
Preferably, the through hole is circular, oval, square or rectangle.
According to other side of the present utility model, the utility model is related to a kind of syringe, and the syringe is used to note
A small amount of medicine of exact dose is penetrated, the syringe includes：Hollow syringe, the syringe includes cylinder and is arranged on cylinder
The barrel flange of proximal end；Can in syringe axially-movable push rod, the push rod includes the body of rod and being arranged on the near of push rod
Push rod flange at end；Dosage control assembly according to above-mentioned aspect.
Description of the drawings
Herein with reference to Description of Drawings many aspects of the present utility model and feature, wherein：
Fig. 1 is the stereogram of the syringe of precise control injection dosage in prior art.
Figure 1A is the stereogram at the syringe needle junction surface of the syringe of precise control injection dosage in prior art.
Fig. 2 is the stereogram of the syringe according to the utility model first embodiment.
Fig. 3 is the stereogram of the syringe of the syringe according to the utility model first embodiment.
Fig. 3 A are the stereograms of the barrel flange according to syringe of the present utility model.
Fig. 4 is the amplification stereogram of the luer locks adapter of the syringe according to the utility model first embodiment.
Fig. 5 is the amplification stereogram of the end cap of the syringe according to the utility model first embodiment.
Fig. 6 is the stereogram of the push rod of the syringe according to the utility model first embodiment.
Fig. 7 is the amplification stereogram of the plug of the syringe according to the utility model first embodiment.
Fig. 8 is the amplification stereogram of the dosage control piece of the syringe according to the utility model first embodiment.
Fig. 9-13 illustrates the operating process of the syringe according to the utility model first embodiment.
Figure 14 A-C illustrate the distal surface of the plug of the syringe according to the utility model first embodiment in different operating
The position relationship in stage.
Figure 15 is the stereogram of the syringe according to the utility model second embodiment.
Figure 16 A- Figure 18 B are the partial enlarged drawings of the syringe according to the utility model second embodiment.
Figure 19 is the stereogram of the syringe according to the utility model 3rd embodiment.
Figure 20 is the vertical of the control piece junction surface of the syringe according to the utility model 3rd embodiment and dosage control piece
Body figure.
Specific embodiment
Before multiple example embodiments of the present utility model are introduced, it should be appreciated that the utility model is not limited to
The structure proposed in description below or the details of process step.The utility model can have an other embodiments, and can be with
Various ways are being practiced or carried out.
Herein, term " distally " refers to the part being described as further from user, and term " nearside " is
Finger is described as the part closer to user.
Referring to Fig. 2, syringe 1 includes syringe 2, push rod 3 and dosage control piece 4 etc..As shown in figure 3, syringe 2 is usually saturating
Bright hollow cylindrical configuration, for accommodating medicine to be injected.Syringe 2 is generally made up of glass or plastics.Syringe 2 is from as far as near
Include integrally formed syringe needle junction surface 21, cylinder 22 and barrel flange 23 successively.Syringe needle junction surface 21 from cylinder 22 distad
Gradually narrow, for engaging needle assembly.Can be by luer fit and the phase of luer locks adapter 5 on syringe needle junction surface 21
Even.As shown in Fig. 2 during being not used, end cap 6 is stamped on luer locks adapter 5, the medicine accommodated in syringe 1 is prevented
It is contaminated；And during use, end cap 6 is removed from luer locks adapter 5, and being coordinated by screw thread fits luer locks
Orchestration 5 is connected with needle assembly.Figure 4 and 5 respectively illustrate the zoomed-in view of luer locks adapter 5 and end cap 6.Replace at one
For in embodiment, syringe needle junction surface 21 can be not provided with luer locks adapter 5, but straight with needle assembly by frictional fit
Connect connected；In another alternate embodiment, syringe needle junction surface 21 can directly be equipped with pin when dispatching from the factory.With continued reference to Fig. 3,
Cylinder 22 is the uniform hollow circular cylinder of internal diameter, and its distal end is connected with syringe needle junction surface 21, and near-end is provided with opening 22a.Push away
Bar 3 can pass through opening 22a axially reciprocatings in cylinder 22.Barrel flange 23 is extended laterally from the opening 22a of cylinder 22,
Medical personnel are helped to grip syringe 2 in injection.Barrel flange 23 can be arranged to variously-shaped, such as circle shown in Fig. 3,
And the trimming circle shown in Fig. 3 A etc..
Push rod 3 is used to promote medicine to pass through cylinder 22, the arrival of syringe needle junction surface 21 needle assembly, so as to drug injection be arrived
The desired area of patient.Push rod 3 is general by forming with rigid plastic manufacturing.As shown in fig. 6, push rod 3 is from as far as closely successively
Including integrally formed plug junction surface 31, the body of rod 32, push rod flange 33 and handle portion 34.Plug junction surface 31 is located at the body of rod 32
Distal end, and engage with plug 35.As shown in fig. 7, plug 35 is made up of materials such as rubber, it is axial in cylinder 22 in push rod 3
Sealed cylinder 22 and the drug leakage of cylinder 22 is prevented during motion.In one embodiment, internal thread is provided with inside plug 35, with
External screw thread on plug junction surface 31 is engaged.But, the engagement between plug junction surface 31 and plug 35 is not limited to screw thread
Engagement, can also be using connected modes such as snap engagement, hot melts.With continued reference to Fig. 6, consider from intensity and cost angle, the body of rod
32 elongate posts that can include cross-like cross-section.In other embodiments, the body of rod 32 can also be arranged to a flat rod or
Piece cylindrical bar of person etc..The near-end of the body of rod 32 is handle portion 34 in a distance and push rod flange 33, and handle portion 34
Extend laterally from the body of rod 32 with push rod flange 33.Handle portion 34 and push rod flange 33 can be with rounded, oval, polygon etc.
Shape.Medical personnel utilize during operation thumb press handle portion 34, to promote the distal motion in cylinder 22 of push rod 3.
Internal diameter of the external diameter of push rod flange 33 more than the opening 22a of cylinder 22, so as to push rod flange 33, can be finally resisted against syringe convex
On edge 23, stop further distal motion of the push rod 3 in cylinder 22.
The control piece junction surface 36 being integrally formed therewith is additionally provided with the body of rod 32.Control piece junction surface 36 engages dosage control
Product 4, the drug dose being expelled to for control in patient's body.Particularly, the thickness of the dosage control piece 4 and required note
The drug dose penetrated is corresponding.In the present embodiment, control piece junction surface 36 be located at push rod flange 33 underface, and including
Groove 36a and extension 36b.Extension 36b is extended laterally from the body of rod 32, and the internal diameter of the opening 22a less than cylinder 22.
Extension 36b can be with the shape such as rounded, oval, polygon.Groove 36a be located at push rod flange 33 and extension 36b it
Between.Extension 36b and push rod flange 33 are engaged, for dosage control piece 4 to be maintained in groove 36a, so as to preventing agent
Amount control piece 4 is moved axially on the body of rod 32, but acceptable dose control piece 4 is laterally removed from the body of rod 32.
As shown in figure 8, dosage control piece 4 is plate-like piece, and two stretched out including base portion 41 and from the two ends of base portion 41
Individual L-shape leg 42.Opposed facing two boss 43 are provided with the inside of the free end of two supporting legs 42, between two boss 43
Distance be slightly less than the thickness of the body of rod at groove 36a.During dosage control piece 4 is inserted into groove 36a, dosage
Two supporting legs 42 of control piece 4 are slightly flared, and two boss 43 slide through on the surface of groove 36a, so
Latter two supporting leg 42 returns to original shape by restoring force, so as to dosage control piece 4 leads between push rod flange 33 and extension 36b
Cross base portion 41, supporting leg 42 and boss 43 and surround groove 36a.In order to allow medical personnel preferably to grasp dosage control piece 4,
One or more raised lines or groove 44 of strip can be set on base portion 41.
Referring to Fig. 9-12, the operating process of syringe 1 is described below.Medical personnel take syringe 1 from packing box
Go out, now as shown in figure 9, being stamped end cap 6 on the luer locks adapter 5 of syringe 1, and syringe 1 is preinstalled with dosage control
Product 4 and medicine.In an alternative embodiment, syringe 1 can be with scene filling medicine；In another alternate embodiment
In, syringe 1 can be with assembled in situ dosage control piece 4.As shown in Figure 10, medical personnel remove from luer locks adapter 5
End cap 6 simultaneously screws on needle assembly (for simplification view, not shown needle assembly), inverted syringe 1 and needle assembly 4 is upward, hand
Finger gripping tube-holding body 22 is simultaneously shelved on thumb in handle portion 34, push rod 3 is distally advanced in cylinder 22, until dosage control piece
Till 4 distal surface abuts barrel flange 23, now being discharged by dischargeing overdose of medicine thing may bag in syringe 1
The bubble for containing, as shown in figure 11.Then, as shown in figure 12, syringe 1 is reversed by medical personnel, and by dosage control piece 4
Remove from the body of rod 32, so as to leave the gap of certain distance between barrel flange 23 and push rod flange 33.As shown in figure 13, cure
Shield personnel are pierced into syringe needle in patient's body, and continue to press on push rod 3 and distally advance in the cylinder 22, until push rod flange 33 is supported
Till leaning against in barrel flange 23.Now, the predetermined dose of medication corresponding to above-mentioned gap thickness is injected in patient's body.It is complete
Into after injection, medical personnel extract syringe needle from patient's body, and whole syringe is abandoned.
As shown in Figure 14 A-C, when syringe 1 just takes out from packing box, the distal surface of the plug 35 of push rod 3 is away from syringe
The position w0=L-a-t-p of the proximal face 23 of flange 23, wherein, L is remote from the distal surface of handle portion 34 to plug 35
The distance between side surface, a is the distance between distal surface of the distal surface of handle portion 34 and push rod flange 33, and t is agent
The thickness of amount control piece 4, when p is packed state between the proximal face of the distal surface of dosage control piece 4 and barrel flange 23
Distance.When syringe 1 emits bubble, the distal surface of the plug 35 of push rod 3 location w1=in cylinder 22
L-a-t.When syringe 1 completes injection, the distal surface of the plug 35 of push rod 3 location w2=L-a in cylinder 22.
Medication amount in syringe 22 between w1 and w2 is the dosage being injected in patient's body, and it corresponds to the thickness t of dosage control piece 4.
In this application, w1 and w2 are arranged at the most uniform part of the internal diameter of cylinder 22, without uppity in manufacturing tolerance
Syringe end, so as to avoid because dosage caused the problems such as manufacturing tolerance is inaccurate.
As shown in figure 15, in an alternative embodiment, control piece junction surface 36 could be arranged to the through hole on the body of rod 32,
And dosage control piece 4 could be arranged to can be inserted into through hole in and with the bar of the form fit in hole.As shown in figure 16 a and 16b, through hole
It can be circular port.As illustrated in figures 17a and 17b, through hole can be rectangular or square hole.As shown in figures 18a and 18b, through hole
It can be the otch of half through hole, i.e. insertion.
Another alternate embodiment of the utility model syringe 1 is described below.In this scenario, identical part will be used
Identical reference adds 100 to identify.As shown in figure 19, in syringe 101, control piece junction surface 136 is not formed in
On the body of rod 132 of push rod 103, but one with the detached part of push rod 103.Control piece junction surface 136 is can around push rod 103
The cylinder of axially-movable, and between the handle portion 134 of barrel flange 123 and push rod 103.As shown in figure 20, the circle
Cylinder can be integrally formed, or can be combined by two cylinder halfbodies, and two cylinder halfbodies can pass through known
Connected mode (for example, be clasped, bond, heating) links together.Dosage control piece 105 includes base portion 151 and position
In the supporting leg 152 of the lower section of base portion 151, base portion 151 can be buckled on control piece junction surface 136, and the thickness pair of supporting leg 152
The drug dose of injection needed for Ying Yu.
In injection, medical personnel's inverted syringe 101 and needle assembly 104 is upward, finger grip cylinder and by thumb
It is shelved in handle portion 134, push rod 103 is distally advanced in cylinder, until the proximal face at control piece junction surface 136 is abutted
Till the distal surface of the handle portion 134 of push rod 103 and the supporting leg 152 of dosage control piece 104 abuts barrel flange 123, this
When discharge the bubble that may be included in syringe 101 by dischargeing overdose of medicine thing.Then, medical personnel are by syringe
101 reverse, and dosage control piece 105 is removed from control piece junction surface 136, so as to handle portion 134 and control piece are engaged
The gap corresponding to the thickness of supporting leg 152 is left between portion 136.Medical personnel are pierced into syringe needle in patient's body, and continue to press on and push away
Bar 103 is distally advanced in cylinder, till pusher grip portion 134 is resisted against on control piece junction surface 136.Now, it is right
Should be injected in patient's body in the predetermined dose of medication of supporting leg thickness.After completing injection, medical personnel are by syringe needle from patient's body
Inside extract, and whole syringe is abandoned.
It is related to " one embodiment ", " alternate embodiment ", " one or more embodiments " or " reality throughout the specification
Apply example " mean with reference to the specific characteristic described in the embodiment, structure, material or characteristic will be contained in it is of the present utility model extremely
In few one embodiment.Therefore, the wording for occurring at multiple positions throughout the specification is for example " in one or more enforcements
In example ", " in a particular embodiment ", " in one embodiment " or " in embodiment " do not necessarily involve the utility model
Identical embodiment.And, special feature, structure, material or the characteristic can in one or more embodiments with any
Suitable method is combined.
Although describing the utility model by reference to specific embodiments here, it is understood that these embodiments are only
It is that example illustrates principle of the present utility model and application.It will be appreciated by those skilled in the art that without departing from the utility model
Spirit and scope in the case of can carry out various changes and change to method and apparatus of the present utility model.Therefore, this reality
With the new change being included within the range of accessory claim and their equivalent and change.
Claims (15)
1. a kind of dosage control assembly, the dosage control assembly is used for a small amount of drug dose of precise control syringe injection,
The syringe include hollow syringe and can in syringe axially-movable push rod, the syringe and the push rod it is near at its
There is respectively flange, it is characterised in that the dosage control assembly includes at end：
Control piece junction surface, the control piece junction surface is integrally formed with push rod；With
Dosage control piece, the dosage control piece can removedly be engaged with control piece junction surface；
Wherein, before injection, the distal surface of dosage control piece Engagement Control part junction surface, and dosage control piece abuts pin
The flange of cylinder；In injection, dosage control piece is removed from control piece junction surface, and push rod is advanced until the flange of push rod in syringe
Till abutting the flange of syringe.
2. dosage control assembly according to claim 1, it is characterised in that control piece junction surface is arranged on the flange of push rod
Underface, and including extension and groove.
3. dosage control assembly according to claim 2, it is characterised in that extension is extended laterally from push rod, and ditch
Groove portion is arranged between the flange of push rod and extension.
4. the dosage control assembly according to Claims 2 or 3, it is characterised in that dosage control piece is to be inserted into control
Plate-like piece in the groove at part junction surface, the plate-like piece has the thickness corresponding with the drug dose of required injection.
5. the dosage control assembly according to Claims 2 or 3, it is characterised in that the flange of extension and push rod is engaged,
For dosage control piece to be maintained in groove, so as to prevent dosage control piece from moving axially on push rod, but agent is allowed
Amount control piece is laterally removed from push rod.
6. the dosage control assembly according to Claims 2 or 3, it is characterised in that the external diameter of extension is less than syringe near-end
Opening internal diameter.
7. the dosage control assembly according to Claims 2 or 3, it is characterised in that extension is rounded, oval or many
Side shape.
8. dosage control assembly according to claim 4, it is characterised in that dosage control piece includes base portion and from base portion two
The supporting leg of two L-shaped that end is stretched out.
9. dosage control assembly according to claim 8, it is characterised in that set on the inside of the free end of two supporting legs
There are opposed facing two boss, the thickness of push rod at the distance between two boss slightly less than groove.
10. dosage control assembly according to claim 8, it is characterised in that base portion is provided with is easy to medical personnel to grasp
One or more strip raised lines or groove.
11. dosage control assemblies according to any one of claim 1 to 3, it is characterised in that the farthest side assembling of push rod
Have a plug, and before injection with injection after, the distal surface of the plug of push rod is respectively positioned on the more uniform portion of internal diameter of syringe
Point.
12. dosage control assembly according to claim 1, it is characterised in that control piece junction surface is to be arranged on syringe
Push rod on through hole or otch.
13. dosage control assemblies according to claim 12, it is characterised in that dosage control piece for can be inserted into through hole or
In otch and with through hole or the bar of the form fit of otch.
The 14. dosage control assemblies according to claim 12 or 13, it is characterised in that the through hole for it is circular, oval,
Square or rectangle.
A kind of 15. syringes, the syringe is used to inject a small amount of medicine of exact dose, it is characterised in that the syringe
Including：
Hollow syringe, the syringe includes cylinder and is arranged on the barrel flange of the proximal end of cylinder；
Can in syringe axially-movable push rod, the push rod includes that the push rod of the body of rod and the proximal end that is arranged on push rod is convex
Edge；And
Dosage control assembly according to any one of claim 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548184.XU CN206081228U (en) | 2016-06-07 | 2016-06-07 | Dosage control assembly and syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548184.XU CN206081228U (en) | 2016-06-07 | 2016-06-07 | Dosage control assembly and syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206081228U true CN206081228U (en) | 2017-04-12 |
Family
ID=58471293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620548184.XU Active CN206081228U (en) | 2016-06-07 | 2016-06-07 | Dosage control assembly and syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206081228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111956908A (en) * | 2020-09-12 | 2020-11-20 | 金梅兰 | Support frame type medical intravenous injection syringe |
-
2016
- 2016-06-07 CN CN201620548184.XU patent/CN206081228U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111956908A (en) * | 2020-09-12 | 2020-11-20 | 金梅兰 | Support frame type medical intravenous injection syringe |
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