CN205924611U - Can improve medical injector of precision of dispensing - Google Patents
Can improve medical injector of precision of dispensing Download PDFInfo
- Publication number
- CN205924611U CN205924611U CN201620436402.0U CN201620436402U CN205924611U CN 205924611 U CN205924611 U CN 205924611U CN 201620436402 U CN201620436402 U CN 201620436402U CN 205924611 U CN205924611 U CN 205924611U
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- China
- Prior art keywords
- syringe
- depressed part
- keeper
- push rod
- piston
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to the field of medical equipment, concretely relates to can improve medical injector of precision of dispensing, include: cylinder, setting are in syringe needle on the cylinder, with cylinder matched with piston and with hinge joint's push rod, be provided with on the cylinder with the corresponding scale mark of hydrops district's volume, the scale mark corresponds be provided with the depressed part on the cylinder inner wall, be provided with the setting element on the push rod, be provided with on the setting element with depressed part matched with is protruding, the protruding elastic material that adopts makes. The utility model provides a no matter the syringe is that single medical personnel extract many times, and still a plurality of medical personnel carry out liquid medicine extraction work, and its liquid medicine extraction volume can both obtain good unity, reduced because of the reading error that human factor or environmental factor brought, has improved the precision of dispensing and the precision of liquid medicine shot, and then has guaranteed good treatment.
Description
Technical field
The utility model is related to medical instruments field and in particular to a kind of injector for medical purpose that can improve precision of making up a prescription.
Background technology
Current syringe, mainly includes the piston that syringe is coordinated and these portions of push rod being connected with piston with syringe
Part, medical personnel pass through push rod push-and-pull piston and move, and realize the mixed operation such as medicine or injection.Quarter is decorated with the outer surface of syringe
Degree chi, when actually used, medical personnel determine, according to the graduation mark of piston alignment, the volume extracting liquid in syringe, and then really
The proportioning of fixed various liquids.
But, inventor finds, the syringe of current structure still has problem when using, and has reason and is：
Medical personnel, in practical operation, are according to visually observing the alignment condition of piston and graduation mark, this judgment mode or how or
All there are error less, and this error also varies with each individual, the reading of different medical personnel also can have difference；Especially
It is that the error of reading is just huger in the not so good medical environment of light, so, lead to joining using syringe at present
During medicine, precision of making up a prescription is not high, and when being injected, also more or less all there is injecting excess or ullage, shadow
Ring therapeutic effect.
So, based on above-mentioned, need at present to design one kind and medical personnel can be facilitated to determine extract medicine liquid volume, reduce
Medical personnel's error in reading, and then ensure the syringe of therapeutic effect.
Utility model content
The purpose of this utility model is that：For the presence of current syringe because of medical personnel's error in reading, and lead to
Precision of making up a prescription is low and injecting liquid drug amount is inaccurate, and then affects the problem of therapeutic effect, provides one kind can facilitate medical care people
Member determines extraction medicine liquid volume, reduces medical personnel's error in reading, and then ensures the syringe of therapeutic effect.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of injector for medical purpose that can improve precision of making up a prescription, including：Syringe, the syringe needle being arranged on described syringe and
Piston and the push rod being connected with described piston that described syringe matches, described piston is slidably arranged in described syringe, described
Region between piston and described syringe bottom is hydrops area, and described hydrops area is connected with described syringe needle, and described syringe is arranged
There is a graduation mark corresponding with described hydrops area volume, the corresponding described syringe inwall of described graduation mark be provided with depressed part,
Keeper is provided with described push rod, described keeper is tabular, one end of described keeper and the institute along the setting of described push rod
State push rod to connect, the other end of described keeper is provided with the projection matching with described depressed part, and described projection is using elasticity
Material is obtained, and the width of described keeper is gradually reduced towards described projection by described push rod, described raised and described keeper
Between for being connected smoothly, described depressed part is the depression of arc surfaced.
The syringe of the application, due to being provided with the depressed part corresponding with graduation mark, and in push rod on syringe inwall
On be provided with keeper, and be provided with the projection matching with depressed part on the positioning element, when medical personnel use, pulling pushes away
Bar makes piston slide in syringe, and when the volume in hydrops area reaches certain value, projection extend in depressed part, now, due to
Raised upsprings, and medical personnel can be made to feel, and then can stop the pulling to push rod at once, and the scale reading now is read
Whether number is the extraction medicine liquid volume needing, if it is not, then continuing to drag push rod, until the medicine liquid volume in hydrops area reaches
Required medicine liquid volume, so, realizes the accurate extraction work of liquid, in the same manner, it is also possible to accurate hold in injection process
Injection volume；The syringe of the application, medical personnel pass through the raised cooperation with depressed part, and then determine the body of hydrops area inner liquid medicine
Long-pending so that, either single medical personnel repeatedly extract, or multiple medical personnel carry out liquid extraction work, and its liquid is taken out
Taken amount can access good unification, reduces the error in reading brought because of human factor or environmental factor, improves
The precision made up a prescription and the precision of injecting liquid drug amount, and then ensure that good therapeutic effect；In the such scheme of the application, by
Be along the tabular of push rod setting in keeper, and then good structural strength had on the pushing direction of push rod, reduce because
Piston resistance and make keeper deform deflection；Raised and keeper between for being connected smoothly, reduce keeper with
Stress concentration between projection, improves the reliability being connected between keeper and projection, and depressed part is the depressed part of arc surfaced,
Facilitate sliding in and out of projection, facilitate the use of medical personnel.
Preferably, the inwall of described syringe is additionally provided with the chute along described syringe generatrix direction, described depressed part sets
Put in described chute, described raised side wall is matched with the side wall of described chute.When pulling push rod, projection is slided along chute
Dynamic so that, projection can accurately be alignd with depressed part in sliding process, it is to avoid push rod rotates and makes raised and depressed part mistake
Position, improves the reliability of the application syringe use.
Preferably, the corresponding described syringe inwall in the lower end of described chute is provided with for stopping stopping of described piston
Block.Piston is stoped by stops, it is to avoid piston is pulled up excessively, and lead to chute to affect the volume in hydrops area, improve further
The application syringe extracts the precision of liquid.
Preferably, described keeper is additionally provided with reinforcement.Setting reinforcement, the structure improving keeper further is strong
Degree, reduces the risk of its deformation.
Preferably, the depth of described depressed part is 0.5～1.2mm.
Preferably, the depth of described depressed part is 0.8～1mm.Inventor finds, depressed part is set to above-mentioned depth
When, so that medical personnel is clearly felt and protrude out into chute, on the other hand also avoid because depressed part depth
Too deep and make projection be difficult to skid off depressed part, improve the reliability of the application syringe.
Preferably, described graduation mark is arranged on the outer wall of described syringe.
Due to employing technique scheme, the beneficial effects of the utility model are：
The syringe of the application, due to being provided with the depressed part corresponding with graduation mark, and in push rod on syringe inwall
On be provided with keeper, and be provided with the projection matching with depressed part on the positioning element, when medical personnel use, pulling pushes away
Bar makes piston slide in syringe, and when the volume in hydrops area reaches certain value, projection extend in depressed part, now, due to
Raised upsprings, and medical personnel can be made to feel, and then can stop the pulling to push rod at once, and the scale reading now is read
Whether number is the extraction medicine liquid volume needing, if it is not, then continuing to drag push rod, until the medicine liquid volume in hydrops area reaches
Required medicine liquid volume, so, realizes the accurate extraction work of liquid, in the same manner, it is also possible to accurate hold in injection process
Injection volume；The syringe of the application, medical personnel pass through the raised cooperation with depressed part, and then determine the body of hydrops area inner liquid medicine
Long-pending so that, either single medical personnel repeatedly extract, or multiple medical personnel carry out liquid extraction work, and its liquid is taken out
Taken amount can access good unification, reduces the error in reading brought because of human factor or environmental factor, improves
The precision made up a prescription and the precision of injecting liquid drug amount, and then ensure that good therapeutic effect；In the such scheme of the application, by
Be along the tabular of push rod setting in keeper, and then good structural strength had on the pushing direction of push rod, reduce because
Piston resistance and make keeper deform deflection；Raised and keeper between for being connected smoothly, reduce keeper with
Stress concentration between projection, improves the reliability being connected between keeper and projection, and depressed part is the depressed part of arc surfaced,
Facilitate sliding in and out of projection, facilitate the use of medical personnel.
Brief description
Fig. 1 is structural representation of the present utility model,
In figure：1st, syringe；2nd, syringe needle；3rd, piston；4th, push rod；5th, hydrops area；6th, depressed part；7th, keeper；8th, raised；9、
Chute；10th, stops；11st, reinforcement.
Specific embodiment
Purpose, technical scheme and advantage for making the utility model embodiment are clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described it is clear that being retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments, based on the enforcement in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, broadly fall into
The scope of the utility model protection.
Embodiment 1, as shown in Figure 1：
A kind of injector for medical purpose that can improve precision of making up a prescription, including：Syringe 1, the syringe needle 2 being arranged on described syringe 1,
The piston 3 matching with described syringe 1 and the push rod 4 being connected with described piston 3, described piston 3 is slidably arranged in described syringe 1
Interior, the region between described piston 3 and described syringe 1 bottom is hydrops area 5, and described hydrops area 5 is connected with described syringe needle 2, institute
State and the graduation mark corresponding with described hydrops area 5 volume is provided with syringe 1, corresponding described syringe 1 inwall of described graduation mark
On be provided with depressed part 6, described push rod 4 is provided with keeper 7, described keeper 7 be along described push rod 4 setting tabular,
One end of described keeper 7 is connected with described push rod 4, and the other end of described keeper 7 is provided with and is matched with described depressed part 6
Projection 8, described raised 8 adopt elastomeric material to be obtained, the width of described keeper 7 by described push rod 4 towards described raised 8 by
Decrescence little, it is to be connected smoothly between described raised 8 and described keeper 7, described depressed part 6 is the depression of arc surfaced.
The syringe of the application, due to being provided with the depressed part 6 corresponding with graduation mark on syringe 1 inwall, and is pushing away
Keeper 7 is provided with bar 4, and the projection 8 being matched with depressed part 6 is provided with keeper 7, use in medical personnel
When, pull push rod 4 so that piston 3 is slided in syringe 1, when the volume in hydrops area 5 reaches certain value, raised 8 extend into depression
In portion 6, now, upspringing due to projection 8, can make medical personnel feel, and then can stop drawing to push rod 4 at once
Dynamic, whether the scale reading reading now is the extraction medicine liquid volume needing, if it is not, then continuing to drag push rod 4, until long-pending
Medicine liquid volume in liquid zone 5 reaches required medicine liquid volume, so, realizes the accurate extraction work of liquid, in the same manner, was injecting
It is also possible to accurately hold injection volume in journey；The syringe of the application, medical personnel pass through the cooperation of raised 8 and depressed part 6,
And then determine hydrops area 5 inner liquid medicine volume so that, either single medical personnel repeatedly extract, or multiple medical personnel
Carry out liquid extraction work, its liquid extraction amount can access good unification, reduce because human factor or environment because
Element and the error in reading brought, improve the precision made up a prescription and the precision of injecting liquid drug amount, and then ensure that and good control curative effect
Really；In the such scheme of the application, because keeper 7 is the tabular along push rod 4 setting, and then the pushing direction in push rod 4
On there is good structural strength, reduce the deflection making keeper 7 deformation because of piston 3 resistance；Projection 8 and keeper 7
Between for being connected smoothly, reduce the stress concentration between keeper 7 and raised 8, improve between keeper 7 and raised 8
The reliability connecting, depressed part 6 is the depressed part 6 of arc surfaced, has been also convenient for sliding in and out of projection 8, has facilitated medical personnel
Use.
Preferably, the inwall of described syringe 1 is additionally provided with the chute 9 along described syringe 1 generatrix direction, described depressed part
6 are arranged in described chute 9, and described raised 8 side wall is matched with the side wall of described chute 9.When pulling push rod 4, raised 8
Slide along chute 9 so that, raised 8 can accurately be alignd with depressed part 6 in sliding process, it is to avoid push rod 4 rotates and makes convex
Rise 8 and depressed part 6 misplace, improve the application syringe use reliability.
Preferably, corresponding described syringe 1 inwall in the lower end of described chute 9 is provided with for stopping described piston 3
Stops 10.Piston 3 is stoped by stops 10, it is to avoid piston 3 is pulled up excessively, and leads to chute 9 to affect the volume in hydrops area 5,
Improve the precision that the application syringe extracts liquid further.
Preferably, described keeper 7 is additionally provided with reinforcement 11.Setting reinforcement 11, improves keeper 7 further
Structural strength, reduces the risk of its deformation.
Preferably, the depth of described depressed part 6 is 0.5～1.2mm.
Preferably, the depth of described depressed part 6 is 0.8～1mm.Inventor finds, depressed part 6 is set to above-mentioned depth
When spending, on the one hand enable medical personnel clearly feel raised 8 entrance chutes 9, on the other hand also avoid because depressed part 6
Depth is too deep and make raised 8 to be difficult to skid off depressed part 6, improve the reliability of the application syringe.
Preferably, described graduation mark is arranged on the outer wall of described syringe 1.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art, in the technical scope that the utility model discloses, can readily occur in change
Or replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be wanted with right
The protection domain asked is defined.
Claims (5)
1. a kind of injector for medical purpose that can improve precision of making up a prescription, including：Syringe, the syringe needle being arranged on described syringe and institute
State piston and the push rod being connected with described piston that syringe matches, described piston is slidably arranged in described syringe, described work
Region between plug and described syringe bottom is hydrops area, and described hydrops area is connected with described syringe needle, described syringe is provided with
The graduation mark corresponding with described hydrops area volume it is characterised in that：Arrange on the corresponding described syringe inwall of described graduation mark
There is depressed part, described push rod is provided with keeper, described keeper is the tabular along the setting of described push rod, described keeper
One end is connected with described push rod, and the other end of described keeper is provided with the projection matching with described depressed part, described projection
It is obtained using elastomeric material, the width of described keeper is gradually reduced towards described projection by described push rod, described raised and institute
Stating between keeper is to be connected smoothly, and described depressed part is the depression of arc surfaced, and the inwall of described syringe is additionally provided with
Along the chute of described syringe generatrix direction, described depressed part is arranged in described chute, described raised side wall and described chute
Side wall match, the corresponding described syringe inwall in lower end of described chute is provided with the stops for stopping described piston.
2. injector for medical purpose as claimed in claim 1 it is characterised in that：It is additionally provided with reinforcement on described keeper.
3. injector for medical purpose as claimed in claim 2 it is characterised in that：The depth of described depressed part is 0.5～1.2mm.
4. injector for medical purpose as claimed in claim 3 it is characterised in that：The depth of described depressed part is 0.8～1mm.
5. injector for medical purpose as claimed in claim 4 it is characterised in that：Described graduation mark is arranged on the outer wall of described syringe
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620436402.0U CN205924611U (en) | 2016-05-13 | 2016-05-13 | Can improve medical injector of precision of dispensing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620436402.0U CN205924611U (en) | 2016-05-13 | 2016-05-13 | Can improve medical injector of precision of dispensing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205924611U true CN205924611U (en) | 2017-02-08 |
Family
ID=57934083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620436402.0U Expired - Fee Related CN205924611U (en) | 2016-05-13 | 2016-05-13 | Can improve medical injector of precision of dispensing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205924611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209792A1 (en) * | 2017-05-16 | 2018-11-22 | 上海博洽医疗器械有限公司 | Safe syringe |
-
2016
- 2016-05-13 CN CN201620436402.0U patent/CN205924611U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209792A1 (en) * | 2017-05-16 | 2018-11-22 | 上海博洽医疗器械有限公司 | Safe syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20180513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |