CN105477743A - Dose-adjustable disposable injection pen - Google Patents
Dose-adjustable disposable injection pen Download PDFInfo
- Publication number
- CN105477743A CN105477743A CN201510318134.2A CN201510318134A CN105477743A CN 105477743 A CN105477743 A CN 105477743A CN 201510318134 A CN201510318134 A CN 201510318134A CN 105477743 A CN105477743 A CN 105477743A
- Authority
- CN
- China
- Prior art keywords
- chaste tree
- axle sleeve
- adjusting rod
- female thread
- 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.)
- Pending
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Abstract
The invention discloses a dose-adjustable disposable injection pen, comprising an upper end button, a planetary gear, an adjusting shaft sleeve, a bidirectional ratchet wheel, an internal thread shaft sleeve, a protective sleeve, a transparent window, a ratchet wheel fastener, an adjusting rod, an upper shell, a screw, a refill support and a lower shell. High-strength plastic design with thread drive and positioning ratchet teeth is used, injection can be started just by rotating the pen body adjusting rod, and next injection will be available just by forcing the adjusting rod to reset. The pen is different from existing market like products in terms of parts structure and parts fitting, the unique ratchet rotation design enables a user to more precisely adjust a dose, the adjusting rod is in a left-handed design and the adjusting shaft sleeve is in an upper end half-empty design, the adjusting rod and the adjusting shaft sleeve enable a user to initially adjust the pen only by a left-handed action under fitting of the bidirectional ratchet wheel, mistaken operations are avoided, and thus the product is safer.
Description
Technical field
The present invention relates to medical treatment, beauty treatment and other associated biomolecule sciemtifec and technical spheres, particularly relate to a kind of disposable injection pen of adjustable dosage.
Background technology
At present, for some especial patients clinically, such as diabetics, hepatitis etc., need to carry out insulin injection, interferon, auxin, vaccine etc. through different occasion oneself of being everlasting, its injected dose precise requirements is high especially, common patient is in the process using old-fashioned disposable syringe, both inconvenient, and can not effectively reach accurate medication; In addition, existing can accurate injection device to there is price high, complex structure, uses the shortcomings such as inconvenience.
Summary of the invention
The object of the invention is to: for above-mentioned Problems existing, a kind of disposable injection pen of adjustable dosage is provided.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of disposable injection pen of adjustable dosage, comprise end button, planetary gear, regulate axle sleeve, two-way chaste tree wheel, female thread axle sleeve, protective sleeve, window, chaste tree wheel buckle, adjusting rod, upper casing, screw mandrel, pen core support and lower casing, one end of described upper end button is contained in through top spring housing and regulates in axle sleeve, described regulating shaft set upper side is in formula structure in midair, planetary gear is provided with in midair in formula structure, described two-way chaste tree wheel is sleeved on regulating shaft and puts, the tooth on two-way chaste tree wheel top is meshed with regulating the chaste tree pawl structure of axle sleeve, described planetary gear, regulate axle sleeve, two-way chaste tree wheel is arranged in adjusting rod, adjusting rod inwall is provided with gear grooved, described planetary gear is formed with gear grooved and engages, adjusting rod upper end is provided with the chaste tree flank of tooth and two-way chaste tree is taken turns, the chaste tree flank of tooth that regulating shaft puts matches, described screw mandrel top is connected with female thread axle sleeve through chaste tree wheel buckle, buckle spring successively, screw mandrel bottom is fixed with push jack, the flank of screw mandrel matches with the female thread in female thread axle sleeve turn, described female threaded shaft set upper side is arranged on and regulates in axle sleeve, the junction of described female thread axle sleeve, buckle spring, chaste tree wheel buckle is set with protective sleeve, described adjusting rod is set with window, and the screw thread guiding rib of window inwall and the thread groove of adjusting rod outer wall are formed and regulate guiding mechanism, described adjusting rod lower end, female thread axle sleeve, chaste tree wheel buckle are installed in upper casing, the chaste tree flank of tooth that chaste tree wheel buckle lower end is arranged is meshed with the chaste tree flank of tooth of upper casing lower end, the lower end of described upper casing is connected with the upper end of pen core support, and the lower end of pen core support adopts with lower casing and is threaded.
Further, described adjusting rod lower end is provided with seam, and surface is provided with graduated disc.
Further, described adjusting rod thread surface groove groove width arranges irregular.
Further, described screw mandrel is provided with draw-in groove, and upper casing lower end is provided with the draw-in groove block matched with draw-in groove.
Further, the connected mode of described pen core support and upper casing adopts the buckle structure of falling claw or bonded structure.
Further, inside, described female thread axle sleeve lower end is provided with the female thread matched with screw mandrel.
Further, described female thread axle sleeve outer wall upper end is provided with and the draw-in groove regulating axle sleeve lower end inner wall fixture block to match.
Further, described adjustment axle sleeve lower end inner wall is provided with fixture block and matches with the draw-in groove of screw mandrel outer wall upper end, and the outer wall lower end of screw mandrel is provided with stuck point and matches with the pawl that falls that chaste tree takes turns buckle.
The invention has the beneficial effects as follows:
1, compared with prior art, the present invention adopts highstrenghtpiston's design of screw drive and location chaste tree tooth, a turn body adjusting rod, injection can be carried out use, enforce adjusting rod to reset and can realize injecting use next time, its have assembly technology simple, be convenient to advantages such as producing in enormous quantities, product cost is low, injected dose is adjustable, injection precision is high, drive mechanism is simple, be easy to carry.
2, the present invention is in modular construction, and part coordinates the like product be all different from the market, the chaste tree tooth swiveling design of this uniqueness, what user was become when adjust dosages is more accurate (because the angle that each chaste tree tooth rotates is fixing, push-in stroke is controlled in the mode that angle rotates, propelling can be made more accurate, the design of chaste tree wheel buckle simultaneously, make in descending injection process, the flank of tooth can be taken turns with the chaste tree of upper casing lower end and form positive engagement, thus send " click, click " feedback sound, this itself also plays a well effect to the calibration of dosage).
3, adjusting rod of the present invention adopts levoform design and regulates axle sleeve to adopt upper end formula design in midair, under the two cooperation taken turns two-way chaste tree, make user can only have a left-handed action when initial adjustment, and the design of formula in midair of regulating shaft set upper side, make planetary gear more smooth and easy in left-handed adjustment process, the design of this planetary rotation simultaneously both ensure that the accuracy of rotation, it also avoid the not smooth problem of feel in rotary course, thus made product safer.When calibration dosage, no matter left-handed or dextrorotation, under the unidirectional spline effect of chaste tree wheel buckle, itself has formed an easy clutch system, thus has prevented the unsafe factor that the malfunction of screw mandrel brings.Simultaneously the coordinating of chaste tree wheel buckle and female thread axle sleeve lower end; under the action of the spring; the chaste tree flank of tooth of the chaste tree flank of tooth of buckle and upper casing lower end meshing together tightly can be made; thus make descending feedback sound more obvious; and whole feedback mechanism by protection shroud; be equivalent to a closing means, thus make injection process safer.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is decomposition texture schematic diagram of the present invention;
Fig. 2 is general assembly structural representation of the present invention;
Fig. 3 is adjusting rod of the present invention and adjustment axle sleeve mounting structure schematic diagram;
Fig. 4 is adjustment axle sleeve of the present invention, two-way chaste tree wheel, female thread axle sleeve mounting structure schematic diagram;
Fig. 5 is planetary gear construction schematic diagram of the present invention;
Fig. 6 is regulating shaft nested structure schematic diagram of the present invention;
Fig. 7 is two-way chaste tree wheel construction schematic diagram of the present invention;
Fig. 8 is adjusting rod of the present invention and window mounting structure schematic diagram;
Fig. 9 is adjusting rod structural representation of the present invention;
Figure 10 is window structural representation of the present invention;
Figure 11 is upper casing of the present invention and female thread axle sleeve mounting structure schematic diagram;
Figure 12 is protective sleeve structural representation of the present invention;
Figure 13 is chaste tree of the present invention wheel buckle structure schematic diagram;
Figure 14 is upper casing of the present invention, pen core support and lower casing mounting structure schematic diagram;
Figure 15 is female threaded shaft nested structure schematic diagram of the present invention;
Figure 16 is upper case structure schematic diagram of the present invention;
Figure 17 is screw structure schematic diagram of the present invention;
Figure 18 is pen core supporting structure schematic diagram of the present invention;
Shown in figure: 1. go up end button, 2. top spring, 3. planetary gear, 4. regulates axle sleeve, 5. two-way chaste tree wheel, 6. female thread axle sleeve; 7. protective sleeve, 8. buckle spring, 9. chaste tree wheel buckle, 10. adjusting rod, 11. windows; 12. upper casings, 13. screw mandrels, 14. push jacks, 15. pen core supports, 16. lower casings.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
As shown in Fig. 1 to Figure 18, a kind of disposable injection pen of adjustable dosage, comprise end button 1, planetary gear 3, regulate axle sleeve 4, two-way chaste tree wheel 5, female thread axle sleeve 6, protective sleeve 7, window 11, chaste tree wheel buckle 9, adjusting rod 10, upper casing 12, screw mandrel 13, pen core support 15 and lower casing 16, one end of described upper end button 1 is sleeved on through top spring 2 and regulates in axle sleeve 4, described adjustment axle sleeve 4 upper end is in formula structure in midair, planetary gear 3 is provided with in midair in formula structure, described two-way chaste tree wheel 5 is sleeved on and regulates on axle sleeve 4, the tooth that two-way chaste tree takes turns 5 tops is meshed with regulating the chaste tree pawl structure of axle sleeve 4, described planetary gear 3, regulate axle sleeve 4, two-way chaste tree wheel 5 is arranged in adjusting rod 10, adjusting rod 10 inwall is provided with gear grooved, lower end is provided with seam, surface is provided with graduated disc, described planetary gear 3 is formed with gear grooved and engages, and adjusting rod 10 upper end is provided with the chaste tree flank of tooth and takes turns 5 with two-way chaste tree, regulates the chaste tree flank of tooth on axle sleeve 4 to match, described screw mandrel 13 top is connected with female thread axle sleeve 6 through chaste tree wheel buckle 9, buckle spring 8 successively, screw mandrel 13 bottom is fixed with push jack 14, the flank of screw mandrel 13 matches with female thread axle sleeve 6 turn, the outer wall upper end of described screw mandrel 13 is provided with and the draw-in groove regulating the fixture block of axle sleeve 4 lower end inner wall to match, the outer wall lower end of screw mandrel 13 is provided with stuck point and matches with the pawl that falls that chaste tree takes turns buckle 9, and upper casing 12 lower end is provided with the draw-in groove block matched with draw-in groove, described female thread axle sleeve 6 upper end is arranged on and regulates in axle sleeve 4, and described female thread axle sleeve 6 outer wall upper end is provided with and the draw-in groove regulating axle sleeve 4 lower end inner wall fixture block to match, the junction of described female thread axle sleeve 6, buckle spring 8, chaste tree wheel buckle 9 is set with protective sleeve 7, described adjusting rod 10 is set with window 11, the screw thread guiding rib of window 11 inwall and the thread groove of adjusting rod 10 outer wall are formed and regulate guiding mechanism, and described adjusting rod 10 thread surface groove groove width arranges irregular, described adjusting rod 10 lower end, female thread axle sleeve 6, chaste tree wheel buckle 9 are installed in upper casing 12, the chaste tree flank of tooth that chaste tree wheel buckle 9 lower end is arranged is meshed with the chaste tree flank of tooth of upper casing 12 lower end, described pen core support 15 adopts the buckle structure of falling claw or bonded structure with the connected mode of upper casing 12, the lower end of pen core support 15 adopts with lower casing 16 and is threaded, and described lower casing 16 is provided with pen hanger.
The present invention is when reality uses, the adjustment of double thread screw mandrel 13 pitch parameter is adopted to realize the injection to various dose in conjunction with chaste tree wheel guiding mechanism, pen core devises the adjusting rod 10 of unidirectional spiral groove type, devise at the inwall of window 11 the spirally-guided mechanism matched with adjusting rod 10 simultaneously.Due to spiral fluted effect, adjusting rod 10 itself can rise in left-handed process.Now, regulate the chaste tree pawl structure of axle sleeve 4 can take turns 5 with two-way chaste tree and is formed and engage, the chaste tree flank of tooth formation of adjusting rod 10 end also can be followed simultaneously bottom two-way chaste tree wheel 5 to engage, thus the feedback sound of " click, click " can be produced in adjustment process.User also can see numerical dosage through window 11 on adjusting rod 10, and whole adjustment process terminates.And in this process, because chaste tree wheel buckle 9 forms reverse engagement with the chaste tree flank of tooth of upper casing 12 lower end, so female thread axle sleeve 6 can not be driven to rotate, then screw mandrel 13 also can not rotate.
The adjustable diameter and screw adjusting bar 10 of back-out is firmly pushed back initial point forward, the injection process of the specified dosage of single terminates, and in this process, owing to being dextrorotation, so regulate axle sleeve 4 can drive female thread axle sleeve 6 dextrorotation, thus force screw mandrel 13 dextrorotation, due to screw mandrel 13 devising card slot type structure, and upper casing 12 lower end devises draw-in groove block, so screw mandrel 13 also can progressively advance while dextrorotation, thus realize injection smoothly.And chaste tree wheel buckle 9 forms positive engagement with the lower end chaste tree flank of tooth of upper casing 12 in progradation, so also can hear the feedback sound of " click, click " when advancing, and then ensure that injection process is more accurate, single maximum injection amount is 60 units, and minimum step amount is 1 unit.
This writing-core type syringe adopts factory inoculated seal structure, and the packaged type of pen core support can adopt bonding or can not the reverse buckling type locking of rollback.
In sum, the present invention have assembly technology simple, be convenient to produce in enormous quantities, cost is low, injected dose is specified, injection precision is high, volume is little, easy to use, the advantage such as be easy to carry about with one, be worth promoting the use of on a large scale.
Above-described embodiment, just in order to technical conceive of the present invention and feature are described, its objective is and is one of ordinary skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this; The change of every equivalence done by the essence of content of the present invention or modification, all should be encompassed in protection scope of the present invention.
Claims (8)
1. the disposable injection pen of an adjustable dosage, it is characterized in that: comprise end button, planetary gear, regulate axle sleeve, two-way chaste tree wheel, female thread axle sleeve, protective sleeve, window, chaste tree wheel buckle, adjusting rod, upper casing, screw mandrel, pen core support and lower casing, one end of described upper end button is contained in through top spring housing and regulates in axle sleeve, described regulating shaft set upper side is in formula structure in midair, planetary gear is provided with in midair in formula structure, described two-way chaste tree wheel is sleeved on regulating shaft and puts, the tooth on two-way chaste tree wheel top is meshed with regulating the chaste tree toothing of axle sleeve, described planetary gear, regulate axle sleeve, two-way chaste tree wheel is arranged in adjusting rod, adjusting rod inwall is provided with gear grooved, described planetary gear is formed with gear grooved and engages, adjusting rod upper end is provided with the chaste tree flank of tooth and two-way chaste tree is taken turns, the chaste tree flank of tooth that regulating shaft puts matches, described screw mandrel top is connected with female thread axle sleeve through chaste tree wheel buckle, buckle spring successively, screw mandrel bottom is fixed with push jack, the flank of screw mandrel matches with the female thread in female thread axle sleeve turn, described female threaded shaft set upper side is arranged on and regulates in axle sleeve, the junction of described female thread axle sleeve, buckle spring, chaste tree wheel buckle is set with protective sleeve, described adjusting rod is set with window, and the screw thread guiding rib of window inwall and the thread groove of adjusting rod outer wall are formed and regulate guiding mechanism, described adjusting rod lower end, female thread axle sleeve, chaste tree wheel buckle are installed in upper casing, the chaste tree flank of tooth that chaste tree wheel buckle lower end is arranged is meshed with the chaste tree flank of tooth of upper casing lower end, the lower end of described upper casing is connected with the upper end of pen core support, and the lower end of pen core support adopts with lower casing and is threaded.
2. a kind of injection pen according to claim 1, is characterized in that: described adjusting rod lower end is provided with seam, and surface is provided with graduated disc.
3. a kind of injection pen according to claim 1, is characterized in that: described adjusting rod thread surface groove groove width arranges irregular.
4. the disposable injection pen of a kind of adjustable dosage according to claim 1, is characterized in that: described screw mandrel is provided with draw-in groove, upper casing lower end is provided with the draw-in groove block matched with screw mandrel draw-in groove.
5. the disposable injection pen of a kind of adjustable dosage according to claim 1, is characterized in that: the connected mode of described pen core support and upper casing adopts the buckle structure of falling claw or bonded structure.
6. a kind of injection pen according to claim 1, is characterized in that: inside, described female thread axle sleeve lower end is provided with the female thread matched with screw mandrel.
7. a kind of injection pen according to claim 1, is characterized in that: described female thread axle sleeve outer wall upper end is provided with and the draw-in groove regulating axle sleeve lower end inner wall fixture block to match.
8. a kind of injection pen according to claim 1, is characterized in that: described female thread axle sleeve outer wall lower end is provided with to take turns buckle and fall the stuck point that pawl matches with chaste tree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318134.2A CN105477743A (en) | 2015-06-11 | 2015-06-11 | Dose-adjustable disposable injection pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318134.2A CN105477743A (en) | 2015-06-11 | 2015-06-11 | Dose-adjustable disposable injection pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105477743A true CN105477743A (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510318134.2A Pending CN105477743A (en) | 2015-06-11 | 2015-06-11 | Dose-adjustable disposable injection pen |
Country Status (1)
| Country | Link |
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| CN (1) | CN105477743A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944186A (en) * | 2016-05-18 | 2016-09-21 | 苏州鹏烨医疗科技有限公司 | Injection pen |
| CN107158521A (en) * | 2017-06-26 | 2017-09-15 | 江苏德尔福医疗器械有限公司 | It is fixed to be vented and repeat practical quantitative injection device |
| CN107308523A (en) * | 2017-08-08 | 2017-11-03 | 甘肃成纪生物药业有限公司 | Finely tune injection pen |
| CN109078240A (en) * | 2018-09-30 | 2018-12-25 | 江苏德尔福医疗器械有限公司 | Disposable injection pen with dosage feedback device |
| CN111603638A (en) * | 2020-05-28 | 2020-09-01 | 江苏华阳智能装备股份有限公司 | Intelligent double-track pulse type medical instrument control system |
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| US20060184117A1 (en) * | 2005-01-18 | 2006-08-17 | Barry Knight | Pen shaped medication injection devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944186A (en) * | 2016-05-18 | 2016-09-21 | 苏州鹏烨医疗科技有限公司 | Injection pen |
| CN107158521A (en) * | 2017-06-26 | 2017-09-15 | 江苏德尔福医疗器械有限公司 | It is fixed to be vented and repeat practical quantitative injection device |
| CN107308523A (en) * | 2017-08-08 | 2017-11-03 | 甘肃成纪生物药业有限公司 | Finely tune injection pen |
| CN109078240A (en) * | 2018-09-30 | 2018-12-25 | 江苏德尔福医疗器械有限公司 | Disposable injection pen with dosage feedback device |
| CN111603638A (en) * | 2020-05-28 | 2020-09-01 | 江苏华阳智能装备股份有限公司 | Intelligent double-track pulse type medical instrument control system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |
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| RJ01 | Rejection of invention patent application after publication |