CN208448332U - Finely tune injection pen - Google Patents
Finely tune injection pen Download PDFInfo
- Publication number
- CN208448332U CN208448332U CN201720979435.4U CN201720979435U CN208448332U CN 208448332 U CN208448332 U CN 208448332U CN 201720979435 U CN201720979435 U CN 201720979435U CN 208448332 U CN208448332 U CN 208448332U
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- ratchet
- cylinder
- injection
- push rod
- shell
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Abstract
The utility model discloses a kind of fine tuning injection pens, comprising: differential screw transmission mechanism comprising push rod, push rod nut, position rotating ratchet, adjusting rod, ratchet cylinder；Dial dose mechanism comprising knob, digital cylinder, adjustment barrel and ratchet clamping ring and adjusting connecting cylinder, ratchet clamping ring are set in outside adjusting rod；Shell, differential screw transmission are arranged in shell, and shell is equipped with form, are equipped with pen core frame in shell；Injection mechanism comprising key connector, key, by key spring etc..In adjustment process, the contact position of ratchet clamping ring and ratchet cylinder will appear " click " sound under the action of ratchet；It in readjustment, also will appear " click " sound, by sound, can furthermore combine the visual cues of form to user with sound prompting, be conducive to the adjusting of dosage.Furthermore the fine tuning injection pen may be reused, and can effectively improve injection precision by converting linear motion for screw relative to traditional direct-push injection pen.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly to a kind of fine tuning injection pen.
Background technique
Traditional drug injection is usually required health care professional and is injected using disposable sterilized injector, is injected
The problems such as process can inevitably generate glass chip and cause liquid waste.
To solve the above problems, come into being it is a kind of can with the injection pen of self-injection, in implementing injection, only need by
Medicine bottle is packed into injection pen, and self-injection can be realized by connecting the syringe needle to match, and entire injection process will not generate glass
Clast, medical fluid do not shift, and are not exposed in air, therefore can guarantee the safety of medication, improve the convenience of medication.
It can be applied to all kinds of first aids and chronic disease diabetes mellitus etc., help cardiovascular and cerebrovascular patient, hypoglycemia patient real
Existing self-injection, first aid using medicine, hemostasis and pain-relieving, chemical and biological weapons when next applies also for acute poisoning or morbidity
It saves oneself.But existing injection pen is not easy to adjust dosage, and is difficult to control accurately dosage in injection.
Therefore, how a kind of fine tuning injection pen is provided, in order to dosage adjusting and improve its medication accuracy of measurement, be this
Field technical staff technical problem urgently to be solved.
Utility model content
The purpose of the utility model is to provide a kind of fine tuning injection pens, can effectively solve dosage and adjust inaccurate etc. ask
Topic.
In order to solve the above technical problems, the utility model provides following technical solution:
A kind of fine tuning injection pen, comprising:
Differential screw transmission mechanism comprising for pushing the push rod of clamping type bottle cork, being pushed away with what the push rod was threadedly coupled
Position rotating ratchet, one end and the position rotating ratchet that stem nut and the push rod nut axially dock can clutch connections
Adjusting rod and control adjusting rod rotation ratchet cylinder, the ratchet cylinder is set in outside the adjusting rod；
Dial dose mechanism comprising knob, digital cylinder, adjustment barrel and ratchet clamping ring and adjusting connecting cylinder, it is described
Ratchet clamping ring is set in outside the adjusting rod, and the adjusting connecting cylinder is set in the adjusting rod and the ratchet clamping ring
And outside the ratchet cylinder, the inclined direction of the ratchet at ratchet clamping ring both ends is identical, the two of the ratchet clamping ring
End is connect with the adjusting rod and the ratchet cylinder respectively by ratchet, and the adjusting connecting cylinder is threadedly attached in the tune
It saves outside cylinder, the number cylinder is socketed in outside the adjusting connecting cylinder, and the top of the number cylinder is connected in the knob
Portion, the number drum outer wall are equipped with the graduation mark being spirally distributed；
Shell, the differential screw transmission are arranged in the shell, and the shell is equipped with for showing the number
The form of scale on cylinder, the interior pen core frame being equipped with for installing the clamped bottle of the shell；
Injection mechanism comprising the key connector of the end thereof contacts of one end and the ratchet cylinder pushes the key to connect
The key of fitting axial movement, both ends push against respectively the key connector and the key by key spring, described in pressing
After key, the key connector and the ratchet clamping ring axially move, and the number cylinder is spinned axial movement.
Preferably, it is equipped in the shell for pushing the push rod nut to move down and then the positioning is driven to revolve
Turn the reset spring that ratchet and the adjusting rod are separated from each other, the bottom end end of the reset spring is pushed against the push rod nut
Upper end.
Preferably, positioning tooth is additionally provided in the shell, the positioning tooth is set in outside the adjusting rod, the adjusting
Bar outer cover is equipped with injection sound ratchet and injection bomb ricochet spring, and the injection sound ratchet passes through injection bomb ricochet spring and described
Positioning tooth docking.
Preferably, push rod cup is equipped between the push rod nut and the clamping type bottle cork.
Preferably, it is equipped with axially distributed groove outside the adjusting rod, is equipped with and the ditch inside the ratchet cylinder
The sliding block of slot cooperation.
Preferably, the form is equipped with window cover.
Compared with prior art, above-mentioned technical proposal has the advantage that
A kind of fine tuning injection pen provided by the utility model, comprising: differential screw transmission mechanism comprising for pushing
The push rod of clamping type bottle cork, with push rod be threadedly coupled push rod nut and push rod nut axially dock position rotating ratchet, one end
With position rotating ratchet can the adjusting rod of clutch connection and the ratchet cylinder of control adjusting rod rotation, ratchet cylinder is set in adjusting
Outside bar；Dial dose mechanism comprising knob, digital cylinder, adjustment barrel and ratchet clamping ring and adjusting connecting cylinder, ratchet connect
Adapter ring is set in outside adjusting rod, is adjusted connecting cylinder and is set in outside adjusting rod and ratchet clamping ring and ratchet cylinder, ratchet connects
The inclined direction of the ratchet at adapter ring both ends is identical, and the both ends of ratchet clamping ring are connected with adjusting rod and ratchet cylinder respectively by ratchet
It connects, adjusts connecting cylinder and be threadedly attached in outside adjustment barrel, digital cylinder, which is socketed in, to be adjusted outside connecting cylinder, the top of digital cylinder
It is connected to inside knob, digital drum outer wall is equipped with the graduation mark being spirally distributed；Shell, differential screw transmission are arranged in shell
Interior, shell is equipped with the form for showing the scale on digital cylinder, and the pen core frame for placing clamped bottle is equipped in shell；Note
Penetrate mechanism comprising the key connectors of the end thereof contacts of one end and ratchet cylinder, the key for pushing the axial movement of key connector,
Both ends push against respectively key connector and key by key spring.
When clamped bottle is fitted into pen core frame, push rod nut stress upward sliding, while position rotating ratchet also moves therewith
Dynamic, after clamped bottle assembly in place, position rotating ratchet and the ratchet for adjusting boom end mutually coincide.Metering tune is carried out before injection
When section, by rotating knob, to drive digital cylinder, adjustment barrel, ratchet clamping ring, ratchet cylinder and key connector and key same
When move up, wherein adjustment barrel does lead of screw thread rotary motion, and adjustment barrel and ratchet clamping ring are ratchet assembly, simultaneously because
By the reaction force of key spring, therefore in adjustment process, the contact position of ratchet clamping ring and ratchet cylinder is under the action of ratchet
It will appear " click " sound, dosage adjusted can be observed by form when adjusting, if regulating dosage is excessive, can be revolved by revolution
Button carries out the readjustment of dosage, since the both ends of ratchet clamping ring are equipped with ratchet, in readjustment, and ratchet clamping ring and tune
The contact position of section cylinder can also will appear " click " sound under the action of ratchet, can be to user with sound prompting by sound, this
The visual cues of outer combination form, are conducive to the adjusting of dosage.
After the dosage required for being adjusted to, it can be injected, pressing keys, key connector is done along its axis direction
Linear motion, while ratchet cylinder, ratchet clamping ring, adjustment barrel and digital cylinder, adjusting rod, position rotating ratchet being driven to spin fortune
It is dynamic, push rod rotation is then driven, under the action of push rod nut, push rod axially moves, and then pushes clamping type bottle cork, Ji Keshi
Now inject purpose.The fine tuning injection pen may be reused, and traditional disposable injection pen consumptive material is avoided to reduce medical waste.Furthermore
Injection precision can be effectively improved by converting linear motion for screw relative to traditional direct-push injection pen.
Detailed description of the invention
It, below will be to embodiment or existing in order to illustrate more clearly of the utility model or technical solution in the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of sectional structure signal for finely tuning injection pen provided by a kind of specific embodiment of the utility model
Figure；
Fig. 2 is a kind of detonation configuration signal for finely tuning injection pen provided by a kind of specific embodiment of the utility model
Figure；
Fig. 3 shows for a kind of broken section structure for finely tuning injection pen provided by a kind of specific embodiment of the utility model
It is intended to.
Appended drawing reference is as follows:
1 is key, and 2 be knob, and 3 be shell, and 4 be form, and 5 be window cover, and 6 is adjust connecting cylinder, and 7 be adjustment barrel, and 8 are
Ratchet cylinder, 9 be ratchet clamping ring, and 10 be injection sound ratchet, and 11 be reset spring, and 12 be pen core frame connecting cylinder, and 13 be pen cap,
14 is, by key spring, 15 are digital cylinder, and 16 be key connector, and 17 be adjusting rod, and 18 be push rod, and 19 be injection bomb ricochet spring,
20 be positioning tooth, and 21 be position rotating ratchet, and 22 be push rod nut, and 23 be push rod cup, and 24 be pen core frame.
Specific embodiment
Just as described in the background section, current injection pen is not easy to the adjusting of dosage in injection.
On the basis of the studies above, the utility model embodiment provides a kind of fine tuning injection pen, carries out before injecting
When metering is adjusted, by rotating knob, with drive digital cylinder, adjustment barrel, ratchet clamping ring, ratchet cylinder and key connector and
Key moves up simultaneously, and wherein adjustment barrel does lead of screw thread rotary motion, and adjustment barrel and ratchet clamping ring are ratchet assembly, together
When due to press key spring reaction force, in adjustment process, the contact position of ratchet clamping ring and ratchet cylinder is in ratchet
It will appear " click " sound under effect, dosage adjusted can be observed by form when adjusting, if regulating dosage is excessive, can be passed through
Knob is turned round to carry out the readjustment of dosage, since the both ends of ratchet clamping ring are equipped with ratchet, in readjustment, ratchet is connected
The contact position of circle and adjustment barrel can also will appear " click " sound under the action of ratchet, can be to user with sound by sound
It reminds, furthermore combines the visual cues of form, be conducive to the adjusting of dosage.Furthermore the fine tuning injection pen may be reused, and keep away
Exempt from traditional disposable injection pen consumptive material and reduces medical waste.Relative to traditional direct-push injection pen, by the way that screw is turned
Linear motion is turned to, injection precision can be effectively improved.
It is understandable in order to enable the above objects, features, and advantages of the utility model to become apparent, it is right with reference to the accompanying drawing
Specific embodiment of the present utility model is described in detail.
Elaborate detail in the following description in order to fully understand the utility model.But the utility model can
It is different from other way described herein with a variety of and implements, those skilled in the art can be without prejudice to the utility model connotation
In the case where do similar popularization.Therefore the utility model is not limited by following public specific embodiment.
Fig. 1-Fig. 3 is please referred to, Fig. 1 is a kind of fine tuning injection pen provided by a kind of specific embodiment of the utility model
Schematic cross-sectional view；Fig. 2 is a kind of explosion knot for finely tuning injection pen provided by a kind of specific embodiment of the utility model
Structure schematic diagram；Fig. 3 is a kind of broken section structure for finely tuning injection pen provided by a kind of specific embodiment of the utility model
Schematic diagram.
A kind of specific embodiment of the utility model provides a kind of fine tuning injection pen, comprising: differential screw driver
Structure comprising for pushing 22 axis of push rod 18, the push rod nut 22 being threadedly coupled with push rod 18 and push rod nut of clamping type bottle cork
To the position rotating ratchet 21 of docking, one end and position rotating ratchet 21 can clutch connection adjusting rod 17 and control to adjust
The ratchet cylinder 8 that bar 17 rotates, ratchet cylinder 8 are set in outside adjusting rod 17；Dial dose mechanism comprising knob 2, digital cylinder
15, adjustment barrel 7 and ratchet clamping ring 9 and adjusting connecting cylinder 6, ratchet clamping ring 9 are set in outside adjusting rod 17, adjust connection
Cylinder 6 is set in outside adjusting rod 17 and ratchet clamping ring 9 and ratchet cylinder 8, the inclined direction of the ratchet at 9 both ends of ratchet clamping ring
Identical, the both ends of ratchet clamping ring 9 are connect with adjusting rod 17 and ratchet cylinder 8 respectively by ratchet, are adjusted connecting cylinder 6 and are passed through screw thread
It is connected to outside adjustment barrel 7, digital cylinder 15, which is socketed in, to be adjusted outside connecting cylinder 6, and the threads of digital cylinder 15 are connected to knob 2
The tail end of inside, digital cylinder 15 is socketed in outside adjustment barrel 7, and digital 15 outer wall of cylinder is equipped with the graduation mark being spirally distributed；Shell
Body 3, differential screw transmission are arranged in shell 3, and shell 3 is equipped with the form 4 for showing the scale on digital cylinder 15, shell
The pen core frame 24 for placing clamped bottle is equipped in 3；Injection mechanism comprising the key of the end thereof contacts of one end and ratchet cylinder 8
Connector 16, the key 1 for pushing key connector 16 to move axially, both ends push against pressing for key connector 16 and key 1 respectively
Key spring 14.
When using fine tuning injection pen provided in this embodiment, when clamped bottle is fitted into pen core frame 24, push rod nut 22 by
Power upward sliding, while position rotating ratchet 21 also moves, after clamped bottle assembly in place, position rotating ratchet 21 and tune
The ratchet of 17 end of pole mutually coincide.Wherein pen core frame 24 can be connected on shell 3 by 24 connecting cylinder 12 of pen core frame, pen core
Pen cap 13 is also arranged with outside frame 24.
When carrying out metering adjusting before injection, by rotating knob 2, to drive digital cylinder 15, adjustment barrel 7, ratchet clamping ring
9, ratchet cylinder 8 and key connector 16 and key 1 move up simultaneously, and wherein adjustment barrel 7 does lead of screw thread rotary motion, adjust
Section cylinder 7 and ratchet clamping ring 9 are ratchet assembly, simultaneously because the reaction force of key spring 14 is pressed, therefore in adjustment process, spine
The contact position of tooth clamping ring 9 and ratchet cylinder 8 will appear " click " sound under the action of ratchet, can be seen by form 4 when adjusting
Dosage adjusted is examined, if regulating dosage is excessive, the readjustment of dosage can be carried out by revolution knob 2, due to ratchet clamping ring 9
Both ends be equipped with ratchet, therefore in readjustment, the contact position of ratchet clamping ring 9 and adjustment barrel 7 can under the action of ratchet
It will appear " click " sound, by sound, can furthermore combine the visual cues of form 4 to user with sound prompting, be conducive to agent
The adjusting of amount.
After the dosage required for being adjusted to, it can be injected, pressing keys 1, key connector 16 is along its axis side
To moving in a straight line, while driving ratchet cylinder 8, ratchet clamping ring 9, adjustment barrel 7 and digital cylinder 15, adjusting rod 17, position rotating
Ratchet 21 is spinned movement, then push rod 18 is driven to rotate, and under the action of push rod nut 22, push rod 18 axially moves, into
And clamping type bottle cork is pushed, injection purpose can be realized.
Furthermore fine tuning injection pen provided by the above embodiment, may be reused, and avoid traditional disposable injection pen consumptive material
Reduce medical waste.It's also worth mentioning that relative to traditional direct-push injection pen, by converting straight line for screw
Movement, can effectively improve injection precision.
Further, it is equipped in shell 3 for pushing push rod nut 22 to move down and then drives position rotating ratchet 21
The reset spring 11 being separated from each other with adjusting rod 17, the bottom end end of reset spring 11 are pushed against the upper end of push rod nut 22.
When installing clamped bottle, reset spring 11 is shunk under the extruding of push rod nut 22；Take out clamped bottle it
Afterwards, push rod nut 22 will push push rod nut 22 and move down under the action of reset spring 11, due to push rod nut 22 and determine
Position rotary ratchet 21 is connected with each other, therefore position rotating ratchet 21 and adjusting rod 17 may make to be separated from each other.
Further, positioning tooth 20 is additionally provided in shell 3, positioning tooth 20 is set in outside adjusting rod 17, adjusting rod 17
For outer cover equipped with injection sound ratchet 10 and injection bomb ricochet spring 19, injection sound ratchet 10 is by injection bomb ricochet spring 19 and determines
Position tooth 20 docks.
During assembling clamped bottle, adjusting rod 17 and injection sound ratchet 10 are moved in a straight line, in injection bomb ricochet
Under the extruding of spring 19, injects sound ratchet 10 and positioning tooth 20 docks.
In injection process, since positioning tooth 20 is fixed, by injecting the rotation of sound ratchet 10, " click " can produce
Sound, in order to be reminded to the injection of user acoustically.
In order to optimize the using effect of push rod 18 provided by the above embodiment, it is equipped between push rod nut 22 and clamping type bottle cork
Push rod cup 23.One chamber can be wherein set on push rod cup 23,18 end of push rod is equipped with fixture block, fixture block card in the chamber so that
When push rod 18 rotates, it not will drive the rotation of push rod cup 23, be only that push rod cup 23 generates axial movement.
Further, it is equipped with axially distributed groove outside adjusting rod 17, is equipped with inside ratchet cylinder 8 and groove cooperation
Sliding block.It is convenient for the movement of ratchet cylinder 8 by groove, is also convenient for ratchet cylinder 8 and adjusting rod 17 is driven to rotate.It wherein can be in adjusting rod 17
Furthermore two symmetrically arranged grooves of upper setting inject 10 inner ring of sound ratchet and also are provided with the sliding block being mutually adapted with groove, with
Rotation is synchronized convenient for adjusting rod 17 and injection sound ratchet 10.
Further, form 4 is equipped with window cover 5.The scale on digital cylinder 15 can be protected by window cover 5
Shield, to improve its service life, wherein it is preferred that window cover 5 is transparent window cover 5.
It should also be noted that, herein, the terms "include", "comprise" or its any other variant are intended to non-
It is exclusive to include, so that the process, method, article or equipment for including a series of elements not only includes those elements,
It but also including other elements that are not explicitly listed, or further include solid by this process, method, article or equipment
Some elements.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including
There is also other identical elements in the process, method, article or equipment of the element.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (6)
1. a kind of fine tuning injection pen characterized by comprising
Differential screw transmission mechanism comprising for pushing the push rod of clamping type bottle cork, the push rod spiral shell being threadedly coupled with the push rod
Position rotating ratchet, one end and the position rotating ratchet that the female and described push rod nut axially docks can clutch connection tune
Pole and the ratchet cylinder of the control adjusting rod rotation, the ratchet cylinder are set in outside the adjusting rod；
Dial dose mechanism comprising knob, digital cylinder, adjustment barrel and ratchet clamping ring and adjusting connecting cylinder, the ratchet
Clamping ring is set in outside the adjusting rod, the adjusting connecting cylinder be set in the adjusting rod and the ratchet clamping ring and
Outside the ratchet cylinder, the inclined direction of the ratchet at ratchet clamping ring both ends is identical, and the both ends of the ratchet clamping ring are logical
It crosses ratchet to connect with the adjusting rod and the ratchet cylinder respectively, the adjusting connecting cylinder is threadedly attached in the adjustment barrel
Outside, the number cylinder are socketed in outside the adjusting connecting cylinder, and the top of the number cylinder is connected to inside the knob, institute
It states digital drum outer wall and is equipped with the graduation mark being spirally distributed；
Shell, the differential screw transmission are arranged in the shell, and the shell is equipped with for showing the digital cylinder
Scale form, the pen core frame for installing the clamped bottle is equipped in the shell；
Injection mechanism comprising the key connector of the end thereof contacts of one end and the ratchet cylinder pushes the key connector
The key of axial movement, both ends push against respectively the key connector and the key by key spring, pressing the key
Afterwards, the key connector and the ratchet clamping ring axially move, and the number cylinder is spinned axial movement.
2. fine tuning injection pen according to claim 1, which is characterized in that be equipped in the shell for pushing the push rod
The reset spring that nut moves down and then the position rotating ratchet and the adjusting rod is driven to be separated from each other, the reset
The bottom end of spring is pushed against the upper end of the push rod nut.
3. fine tuning injection pen according to claim 2, which is characterized in that positioning tooth is additionally provided in the shell, it is described fixed
Position tooth is set in outside the adjusting rod, and the adjusting rod outer cover is equipped with injection sound ratchet and injection bomb ricochet spring, described
Sound ratchet is injected to dock by injection bomb ricochet spring and the positioning tooth.
4. fine tuning injection pen according to claim 3, which is characterized in that between the push rod nut and the clamping type bottle cork
Equipped with push rod cup.
5. fine tuning injection pen according to claim 4, which is characterized in that be equipped with outside the adjusting rod axially distributed
Groove, the ratchet cylinder inside is equipped with and the sliding block of groove cooperation.
6. fine tuning injection pen according to claim 5, which is characterized in that the form is equipped with window cover.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720979435.4U CN208448332U (en) | 2017-08-08 | 2017-08-08 | Finely tune injection pen |
| RU2019132214A RU2721930C1 (en) | 2017-08-08 | 2018-01-04 | Fine-tunable autoinjector |
| EP18844414.5A EP3603702A4 (en) | 2017-08-08 | 2018-01-04 | Injection pen capable of fine adjustment |
| PCT/CN2018/071357 WO2019029123A1 (en) | 2017-08-08 | 2018-01-04 | Injection pen capable of fine adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720979435.4U CN208448332U (en) | 2017-08-08 | 2017-08-08 | Finely tune injection pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208448332U true CN208448332U (en) | 2019-02-01 |
Family
ID=65140714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720979435.4U Active CN208448332U (en) | 2017-08-08 | 2017-08-08 | Finely tune injection pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208448332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308523A (en) * | 2017-08-08 | 2017-11-03 | 甘肃成纪生物药业有限公司 | Finely tune injection pen |
-
2017
- 2017-08-08 CN CN201720979435.4U patent/CN208448332U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308523A (en) * | 2017-08-08 | 2017-11-03 | 甘肃成纪生物药业有限公司 | Finely tune injection pen |
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