CN105944186A - Injection pen - Google Patents
Injection pen Download PDFInfo
- Publication number
- CN105944186A CN105944186A CN201610329474.XA CN201610329474A CN105944186A CN 105944186 A CN105944186 A CN 105944186A CN 201610329474 A CN201610329474 A CN 201610329474A CN 105944186 A CN105944186 A CN 105944186A
- Authority
- CN
- China
- Prior art keywords
- medicine storehouse
- dial drum
- check sleeve
- seat
- ratchet
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31525—Dosing
- A61M5/31528—Dosing by means of rotational movements, e.g. screw-thread mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
- A61M5/3155—Mechanically operated dose setting member by rotational movement of dose setting member, e.g. during setting or filling of a syringe
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3125—Details specific display means, e.g. to indicate dose setting
- A61M2005/3126—Specific display means related to dosing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/27—General characteristics of the apparatus preventing use
- A61M2205/273—General characteristics of the apparatus preventing use preventing reuse, e.g. of disposables
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides an injection pen which comprises a dosage regulating part and a cartridge part, wherein the cartridge part comprises a cartridge shell and a unidirectional ratchet mechanism; the unidirectional ratchet mechanism comprises a cartridge seat, a feeding seat, an elastic pawl and unidirectional ratchets; the cartridge seat is in threaded connection to one end of the cartridge shell; the feeding seat is clamped and fixedly arranged in the cartridge seat; the elastic pawl is arranged on the feeding seat, and the unidirectional ratchets are arranged at the upper end of the cartridge shell; the elastic pawl and the unidirectional ratchets are meshed; the dosage regulating part comprises a pen barrel, a scale drum, a non-return sleeve, a return screw barrel and a bidirectional screw rod; one end of the pen barrel is detachably connected to the cartridge seat; the scale drum is inserted in the pen barrel, and the scale drum and the pen barrel are in threaded connection; the non-return sleeve is inserted in the scale drum; and a second clutch mechanism is arranged between the inner wall of the scale drum and the upper end of the non-return sleeve. The injection pen disclosed by the invention achieves the purpose of disposable use and avoids the possibility of secondary utilization; therefore, the injection pen is safe and reliable.
Description
Technical field
The present invention relates to technical field of medical instruments, especially relate to a kind of injection pen.
Background technology
Diabetes are one group of metabolic diseases being characterized with hyperglycemia.Hyperglycemia is then due to insulin
Hyposecretion or its biological agent are impaired, or both have concurrently and cause.The Therapeutic Method of diabetes has multiple,
Including Drug therapy, exercise therapy, Diet Therapy etc..Injection of insulin in its drug treatment
Therapeutic Method is most common and maximally effective Therapeutic Method, and the method needs patient to inject the most quantitatively
Insulin.Therefore, injection pen becomes patient oneself and carries out the instrument of insulin injection.
Injection pen of the prior art, user, by adjusting the position adjustment scale value of clutch pipe, works as medicine
After liquid medicine injection in water pipe, easily utilized by lawless person, the liquid medicine pipe dismounting after using
Falling, again change new liquid medicine pipe, to realize secondary utilization, there is great potential safety hazard in this, passes
Dye disease.
Summary of the invention
It is an object of the invention to provide a kind of injection pen, to solve to work as liquid medicine present in prior art
After liquid medicine injection in pipe, easily being utilized by lawless person, the liquid medicine pipe after using disassembles,
Again changing new liquid medicine pipe, to realize secondary utilization, there is great potential safety hazard in this, infects disease
Sick technical problem.
The invention provides a kind of injection pen, including dosage regulation portion and medicine storehouse portion；Described medicine storehouse portion uses
The ampoule of medicament it is preinstalled with in storage；Drug dose when described dosage regulation portion is for regulating injection,
And make described ampoule discharge the medicament setting dosage；
Described medicine storehouse portion includes that medicine storehouse shell and single direction ratchet mechanism, described single direction ratchet mechanism include medicine
One end of storehouse seat, feeding seat, elastic pawl and unidirectional ratchet, described medicine storehouse seat and described medicine storehouse shell
Threaded；Described feeding seat is fixed in the seat of described medicine storehouse；Described elastic pawl is arranged on institute
Stating on feeding seat, described unidirectional ratchet is arranged on the upper end of described medicine storehouse shell；Described elastic pawl with
Described unidirectional ratchet is meshed；
Described dosage regulation portion includes the shaft of a writing brush, dial drum, check sleeve, return barrel and reverse-flighted screw；
One end of the described shaft of a writing brush removably connects with described medicine storehouse seat；
Described dial drum is located in the described shaft of a writing brush, and described dial drum is threadeded with the described shaft of a writing brush；
Described check sleeve is located in described dial drum, and the inwall of described dial drum and described check
The second clutch it is provided with, for revolving from the described shaft of a writing brush when described dial drum between the upper end of sleeve
When going out, enable described dial drum to drive described check sleeve to rotate and away from described medicine storehouse outside
The axially-movable of shell；
It is provided with the first detent mechanism between inwall and the outer wall of described check sleeve of described dial drum,
For making described check sleeve do unidirectional rotary motion；
Described return barrel is located in described check sleeve, and the upper end of described return barrel is with described
The upper end of check sleeve is connected together；
It is provided with the 3rd clutch between lower end and the lower end of described return barrel of described check sleeve
Structure, for when described dial drum screws in the described shaft of a writing brush, making described check sleeve and described return barrel
Do the axially-movable near described medicine storehouse shell；
Described reverse-flighted screw is located in described return barrel, described reverse-flighted screw include upper semisection and under
Half section, described upper semisection is threadeded with described return barrel；Described feeding cover for seat is located at described lower half
Duan Shang, and described feeding seat threadeds with described lower semisection.
Further, described upper semisection has the first screw thread, and described lower semisection has the second screw thread, institute
State the first screw thread contrary with the thread rotary orientation of described second screw thread.
Further, described second clutch includes being arranged on the inwall of the upper end of described dial drum
Multiple first indexing teeth, and be arranged on described check sleeve upper end multiple second indexing teeth,
Described first indexing tooth is for being meshed with described second indexing tooth.
Further, the upper end of described check sleeve is provided with clutch knob, revolves when pulling described clutch
When button makes it do the axially-movable away from described medicine storehouse shell, described clutch knob can drive described inverse
Only sleeve does the axially-movable away from described medicine storehouse shell, so that the second indexing on described check sleeve
Tooth is meshed with the described first indexing tooth on described dial drum.
Further, the upper end of described check sleeve is provided with multiple spacing ratchet, multiple described spacing
Ratchet forms spacing space；Described clutch knob has button lid and button axle, and described button axle is fixed on button lid
Lower surface, described button axle is fastened in described spacing space, and described button axle and described spacing ratchet
Between there is setting axial spacing.
Further, the upper end of described dial drum is fixed with actively knob, and described in described active knob
Dial drum is connected together；
The upper surface of described active knob offers the first through hole, and described button axle is located in described first and leads to
Kong Zhong.
Further, described first detent mechanism includes the spine being arranged on the outer surface of described check sleeve
Pawl, and the multiple ratchets being arranged on the inwall of described dial drum, multiple described ratchets are along described quarter
The circumference of the inwall of degree cylinder uniformly cloth.
Further, described 3rd clutch include the first spring, the second spring, two-sided joggle piece,
It is arranged at the first face gear of the lower end of described check sleeve and is arranged under described return barrel
Second face gear of end, the upper surface of described two-sided joggle piece is provided with the 3rd face gear, described
The lower surface of double sided gear is provided with the 4th face gear；Described first spring, described two-sided joggle piece
Being respectively sleeved on described return barrel with described second spring, wherein, described second spring is positioned at institute
Stating the top of the second face gear, described two-sided joggle piece is positioned at the top of described second spring, described
First spring is positioned at the top of described two-sided joggle piece, and described first face gear is positioned at described first bullet
The top of spring.
Further, described two-sided joggle piece be circumferentially provided with feather key, the inwall of the described shaft of a writing brush is arranged
There is the keyway corresponding with described feather key；Described feather key is spacing in described keyway, so that described two-sided
Joggle piece can moving axially along the described shaft of a writing brush.
Further, the other end of described medicine storehouse shell is provided with injection needle, and described injection needle
Removably connect with medicine storehouse shell.
Compared with prior art, the invention have the benefit that
The injection pen that the present invention provides, including dosage regulation portion and medicine storehouse portion；Medicine storehouse portion is used for storing pre-
Ampoule equipped with medicament；Drug dose when dosage regulation portion is for regulating injection, and make ampoule
Discharge the medicament setting dosage；Medicine storehouse portion includes medicine storehouse shell and single direction ratchet mechanism, single direction ratchet machine
Structure includes medicine storehouse seat, feeding seat, elastic pawl and unidirectional ratchet, one end of Zuo Yuyao storehouse, medicine storehouse shell
Connect；Feeding seat is fixed in the seat of medicine storehouse；Elastic pawl is arranged on feeding seat, unidirectional ratchet
It is arranged on the upper end of medicine storehouse shell；Elastic pawl is meshed with unidirectional ratchet；Dosage regulation portion includes pen
Pipe, dial drum, check sleeve, return barrel and reverse-flighted screw；One end of the shaft of a writing brush is removable with medicine storehouse seat
Unload connection；Dial drum is located in the shaft of a writing brush, and dial drum is threadeded with the shaft of a writing brush；Check sleeve wears
In dial drum, and between the upper end of the inwall of dial drum and check sleeve, it is provided with the second clutch,
For when dial drum screws out from the shaft of a writing brush, enable dial drum to drive check sleeve to rotate and
Axially-movable away from medicine storehouse shell；It is provided with between inwall and the outer wall of check sleeve of dial drum
One detent mechanism, is used for making check sleeve do unidirectional rotary motion；Return barrel is located in check sleeve
In, and the upper end of the upper end of return barrel and check sleeve is connected together；The lower end of check sleeve with return
The 3rd clutch it is provided with, for when dial drum screws in the shaft of a writing brush, making inverse between the lower end of journey barrel
Only sleeve and return barrel do the axially-movable near medicine storehouse shell；Reverse-flighted screw is located in return barrel
In, reverse-flighted screw includes that upper semisection and lower semisection, upper semisection are threadeded with return barrel；Feeding seat
It is set on lower semisection, and feeding seat is threadeded with lower semisection.By arranging single direction ratchet mechanism,
When after the storage chamber that ampoule is inserted into medicine storehouse shell, after the connection of Zuo Yuyao storehouse, medicine storehouse outer casing screw,
Elastic pawl on feeding seat is meshed with the unidirectional ratchet on the seat of medicine storehouse, medicine storehouse toilet can only to medicine
The direction that storehouse shell is tightened rotates, and can not rotate in the opposite direction, the most just can not be by medicament
Bottle takes out from the shell of medicine storehouse, it is achieved thereby that the purpose being intended for single use, it is to avoid what secondary utilized can
Energy property, safe and reliable.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, under
The accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described by face,
It should be evident that the accompanying drawing in describing below is some embodiments of the present invention, general for this area
From the point of view of logical technical staff, on the premise of not paying creative work, it is also possible to obtain according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the explosive view in dosage regulation portion in the embodiment of the present invention；
Fig. 2 is the explosive view in embodiment of the present invention Chinese medicine storehouse portion；
The sectional view of the injection pen that Fig. 3 provides for the embodiment of the present invention；
Fig. 4 is the structural representation of the shaft of a writing brush in the embodiment of the present invention；
Fig. 5 is the front view of dial drum in the embodiment of the present invention；
Fig. 6 is the upward view of dial drum in the embodiment of the present invention；
Fig. 7 is the sectional view of dial drum in the embodiment of the present invention；
Fig. 8 is the structural representation of check sleeve in the embodiment of the present invention；
Fig. 9 is check sleeve sectional view in the embodiment of the present invention (master regards)；
Figure 10 is the upward view of check sleeve in the embodiment of the present invention；
Figure 11 is the structural representation of return barrel in the embodiment of the present invention；
Figure 12 is the structural representation of two-sided joggle piece in the embodiment of the present invention；
Figure 13 is the structural representation of reverse-flighted screw in the embodiment of the present invention；
Figure 14 is the structural representation of knurled nut in the embodiment of the present invention；
Figure 15 is the structural representation of actively knob in the embodiment of the present invention；
Figure 16 is the structural representation of clutch knob in the embodiment of the present invention；
Figure 17 is the structural representation of embodiment of the present invention Chinese medicine storehouse seat；
Figure 18 is the structural representation of feeding seat in the embodiment of the present invention；
Figure 19 is the structural representation of the cap for brush in the embodiment of the present invention.
Reference:
101-medicine storehouse shell；102-medicine storehouse seat；103-containing mark line；104-visual windows；105-notes
Penetrate syringe needle；The 106-cap for brush；107-cap for brush engaging boss；108-vertical portion；109-transverse part；110-pen
Pipe；111-dial drum；112-check sleeve；113-return barrel；114-shaft of a writing brush boss；115-positions
Boss；116-shaft of a writing brush locating slot；117-annular shaft of a writing brush stopper slot；118-upper semisection；119-lower semisection；
120-injection piston；121-moving block；122-feeding seat；123-unidirectional ratchet；124-chuck；125-
Center hole clipping；126-edge hole clipping；127-the first card base；128-the second card base；129-sight vane；130-
Transparent scale window；131-dose calibration line；132-first indexes tooth；133-second indexes tooth；134-from
Close knob；135-button lid；136-button axle；The spacing ratchet of 137-；139-actively knob；140-knob card
Platform；141-ratchet；145-ratchet；146-annular sizing boss；147-draw-in groove；148-card column；149-
First spring；150-the second spring；The two-sided joggle piece of 151-；152-the first face gear；153-second
Face gear；154-the 3rd face gear；155-the 4th face gear；156-feather key；157-keyway；
158-locating ring；159-knurled nut.160-elastic pawl.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, it is clear that
Described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in bright, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly fall into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, " left ",
The orientation of the instruction such as " right ", " vertically ", " level ", " interior ", " outward " or position relationship are for based on accompanying drawing institute
The orientation shown or position relationship, be for only for ease of the description present invention and simplify description rather than instruction
Hint indication device or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " only use
In describing purpose, and it is not intended that indicate or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, art
Language " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to
It is to removably connect, or is integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Permissible
It is to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.
For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
Embodiment
See shown in Fig. 1 to Figure 19, embodiments provide a kind of injection pen, adjust including dosage
Joint portion and medicine storehouse portion；Medicine storehouse portion is preinstalled with the ampoule of medicament for storage；Dosage regulation portion is used for adjusting
Drug dose during joint injection, and make ampoule discharge the medicament setting dosage, user can pass through agent
The size of injection medicament dosage is wanted in the regulation of amount regulation portion, after having regulated, then is made by dosage regulation portion
The medicament setting dosage regulated is discharged ampoule and is completed injection.
In this embodiment, medicine storehouse portion includes medicine storehouse shell 101 and single direction ratchet mechanism, single direction ratchet machine
Structure includes medicine storehouse seat 102, feeding seat 122, elastic pawl 160 and unidirectional ratchet 123, specifically,
In the storage chamber of ampoule plug-in mounting Chinese medicine storehouse shell；Medicine storehouse shell is cylindrical, the appearance of medicine storehouse shell
Face is provided with containing mark line 103, and the axial direction along medicine storehouse shell is provided with two visual windows 104,
Two visual windows are symmetrical arranged with the axis of medicine storehouse shell for axis of symmetry, can be seen by visual windows
Surplus to ampoule Chinese medicine；The other end of medicine storehouse shell is provided with injection needle 105, this injection
Syringe needle removably connects with medicine storehouse shell, and concrete injection needle is connected with medicine storehouse outer casing screw, medicine storehouse
The other end of shell has medicine storehouse external screw thread, and injection needle has the syringe needle corresponding with medicine storehouse external screw thread
Female thread.The outer surface of medicine storehouse shell is arranged with the cap for brush 106, and the outer surface of medicine storehouse shell is provided with the cap for brush
Engaging boss 107, the inwall of the cap for brush is provided with the broken line type draw-in groove corresponding with cap for brush engaging boss, folding
Line style draw-in groove has vertical portion 108 and transverse part 109, first makes cap for brush engaging boss enter vertical portion,
Then rotate the cap for brush, make cap for brush engaging boss enter transverse part, the most just realize having had the cap for brush and medicine storehouse
Being connected together of shell.In this embodiment, the quantity of cap for brush engaging boss and the quantity of broken line type draw-in groove
Being two, two cap for brush engaging boss are symmetrical for axis of symmetry with the axis of medicine storehouse shell, two
Broken line type draw-in groove is symmetrical for axis of symmetry with the axis of the cap for brush；It should be noted that cap for brush engaging is convex
The quantity of platform, the quantity of broken line type draw-in groove and their distribution situation can also determine according to practical situation,
The such as quantity of cap for brush engaging boss and the uniform amount of broken line type draw-in groove are 3 or 4.It addition,
The quantity quantity more than cap for brush engaging boss of broken line type draw-in groove, such as cap for brush engaging boss can also be made
Quantity be 2, the quantity of broken line type draw-in groove is 4,6 or 8, be so easy to realize soon by
Cap for brush engaging boss screws in transverse part, it is achieved the cap for brush is connected together with medicine storehouse shell.Medicine storehouse seat and medicine
The threaded one end of storehouse shell connects, and specifically, medicine storehouse seat has medicine storehouse seat female thread, medicine storehouse shell
There is medicine storehouse seat external screw thread, in this embodiment, medicine storehouse seat female thread and the rotation of medicine storehouse seat externally threaded screw thread
To being dextrorotation.
In this embodiment, dosage regulation portion include the shaft of a writing brush 110, dial drum 111, check sleeve 112,
Return barrel 113 and reverse-flighted screw；One end of the shaft of a writing brush removably connects with medicine storehouse seat, say, that pen
The lower end of pipe removably connects with medicine storehouse seat, and the shaft of a writing brush is cylinder, and medicine storehouse seat is cylinder, medicine storehouse seat
Outer surface be provided with shaft of a writing brush boss 114 and positioning boss 115；Shaft of a writing brush boss and positioning boss are the most uniform
It is laid in the outer surface of medicine storehouse seat；The quantity of shaft of a writing brush boss is 4, and the quantity of positioning boss is two,
The inwall of the shaft of a writing brush is provided with the annular shaft of a writing brush stopper slot 117 corresponding with shaft of a writing brush boss, and the lower end of the shaft of a writing brush sets
Being equipped with the shaft of a writing brush locating slot 116 corresponding with positioning boss, the quantity of shaft of a writing brush locating slot is two, the shaft of a writing brush
After being fastened on the seat of medicine storehouse, shaft of a writing brush boss spacing annular shaft of a writing brush stopper slot in, positioning boss spacing
Shaft of a writing brush locating slot in, it should be noted that this enforcement row in, shaft of a writing brush boss, positioning boss, pen
Pipe locating slot can also determine according to practical situation, such as, and positioning boss and the quantity of shaft of a writing brush locating slot
It is 1 or 3.
In this embodiment, reverse-flighted screw is located in return barrel, and reverse-flighted screw includes upper semisection 118
With lower semisection 119, upper semisection is threadeded with return barrel.Lower semisection connects injection piston 120,
Specifically, lower semisection is connected with injection piston by moving block, wherein, and moving block and lower semisection
End connects, and moving block can rotate around the axis of lower semisection, injection piston and moving block 121
Fixing connection, is so capable of the rotation of injection piston, during use, promotes medicine by injection piston
Medicament in agent bottle makes it discharge ampoule.Upper semisection has the first screw thread, and lower semisection has the second spiral shell
Stricture of vagina, the thread rotary orientation of the first screw thread and the second screw thread is contrary, and the nominal diameter of the first screw thread is more than second
The nominal diameter of screw thread, such lower semisection the most enough enters return barrel and will not produce interference, namely
Say；The thread rotary orientation of the first screw thread is left-handed, and the thread rotary orientation of the second screw thread is dextrorotation；First screw thread
It is double thread with the second screw thread, by being arranged to double thread, helical pitch can be increased and improve two-way
The movement velocity of screw rod.The pitch of the first screw thread is 8.5mm, and the pitch of the second screw thread is 3mm.
In this embodiment, feeding seat 122 is set on described lower semisection, and feeding seat and lower semisection spiral shell
Stricture of vagina connects.Feeding seat is fixed in the seat of medicine storehouse, and feeding seat can not rotate the most not in the seat of medicine storehouse
Axially-movable can occur, so when reverse-flighted screw moves to the other end of medicine storehouse shell, i.e. towards note
Penetrate the direction of syringe needle when moving, it is possible to prevent feeding seat from rotating with reverse-flighted screw.Elastic pawl sets
Putting on feeding seat, unidirectional ratchet is arranged on the upper end of medicine storehouse shell；Elastic pawl and unidirectional ratchet phase
Engagement, the quantity of elastic pawl is two, and the quantity of unidirectional ratchet is multiple, multiple unidirectional ratchet 123
Circumference along the upper end of medicine storehouse shell is uniformly distributed；Medicine storehouse seat is provided with chuck 124；Chuck is provided with
Center hole clipping 125 and edge hole clipping 126, feeding seat is provided with multiple first card base 127 and multiple second
Card base 128, the first card base is fastened in the hole clipping of center, and the second card base is fastened in edge hole clipping, so
Feeding seat is secured firmly in the seat of medicine storehouse；Feeding seat is additionally provided with and entering that the second screw thread matches
To screw thread, the thread rotary orientation of this feeding screw thread is dextrorotation.
In this embodiment, dial drum is located in the shaft of a writing brush, and dial drum is threadeded with the shaft of a writing brush；Specifically
For, dial drum is threadeded by knurled nut 159 with the shaft of a writing brush, and wherein knurled nut is connected together
In dial drum, knurled nut is set on dial drum.Knurled nut is made up of transparent material；Scale
Cylinder is provided with sight vane 129, and knurled nut is provided with transparent scale window 130, and transparent scale window engages
In sight vane, such knurled nut is fixed in the shaft of a writing brush the most firmly；Scale it is provided with on dial drum
External screw thread, knurled nut is provided with the scale female thread matched with scale external screw thread, wherein outside scale
The rotation direction of screw thread and scale female thread is left-handed；Set along the externally threaded bearing of trend of scale on dial drum
It is equipped with dose calibration line 131, is so easy to accurately regulate dosage.
In this embodiment, check sleeve is located in dial drum, and the inwall of dial drum and check sleeve
Upper end between be provided with the second clutch, for when dial drum screws out from the shaft of a writing brush, make scale
Cylinder can drive check sleeve to rotate and away from the axially-movable of medicine storehouse shell；When dial drum revolves
When entering the shaft of a writing brush, dial drum rotates and the axially-movable of close medicine storehouse shell, and check sleeve is only
Do the axially-movable near medicine storehouse shell, and do not rotate.It should be noted that dial drum is suitable
Hour hands rotate and just can screw out from the shaft of a writing brush, namely dial drum does the axially-movable away from medicine storehouse shell and rotation
Transhipment is dynamic；Dial drum rotates the screw-in shaft of a writing brush counterclockwise, wherein from the upper end of the shaft of a writing brush to the lower end of the shaft of a writing brush
Bearing of trend is direction of observation, dial drum turn clockwise and counterclockwise rotating of dial drum refers both to
Be from direction of observation observe, additionally this embodiment turns clockwise and counterclockwise rotate refer to from
Direction of observation is observed, and narration is not repeated at this.Between inwall and the outer wall of check sleeve of dial drum
It is provided with the first detent mechanism, is used for making check sleeve do unidirectional rotary motion；Specifically, work as quarter
Degree cylinder is clockwise when the shaft of a writing brush screws out, and check sleeve just does unidirectional rotary motion, say, that check set
Cylinder does up time rotary motion at this moment, and when dial drum screws in the shaft of a writing brush counterclockwise, check sleeve does not does
Rotary motion.Return barrel is located in check sleeve, and the upper end of return barrel and check sleeve
Upper end is connected together, and is used for making when check sleeve does unidirectional rotary motion, and return barrel is also Dan Xuan
Transhipment is dynamic, and the direction of rotation of check sleeve is consistent with the direction of rotation of return barrel.Check sleeve
Lower end and the lower end of return barrel between be provided with the 3rd clutch, for when dial drum screw in pen
Guan Shi, makes check sleeve and return barrel do the axially-movable near medicine storehouse shell, and check sleeve and
Return barrel all can not rotate.
In this embodiment, it is multiple that the second clutch includes being arranged on the inwall of the upper end of dial drum
First indexing tooth 132, and it is arranged on multiple second indexing teeth 133 of the upper end of check sleeve, multiple
First separation tooth is uniformly distributed along the circumference of the inwall of dial drum, and multiple second indexing teeth are along check sleeve
The circumference of upper end be uniformly distributed, the quantity that the quantity of the first indexing tooth indexes tooth with second is identical, the
The quantity of one division tooth is 25.First indexing tooth is meshed for indexing tooth with second, and first point
The height of degree tooth and the height of the second indexing tooth are identical, are 0.8mm.When dial drum screws out clockwise
During the shaft of a writing brush, the first indexing tooth and the second indexing tooth are meshed, so that dial drum can drive check
Sleeve rotates and axially-movable, when dial drum screws in the shaft of a writing brush counterclockwise, first indexing tooth with
Second indexing tooth is separated, and the lower end of dial drum abuts against with check sleeve, so that check sleeve
Can only axially move.
Specifically, the upper end of check sleeve is provided with clutch knob 134, when pull clutch knob make from
When conjunction knob self does the axially-movable away from medicine storehouse shell, clutch knob can drive check sleeve to do
Away from the axially-movable of medicine storehouse shell, so that the second indexing tooth on check sleeve and the on dial drum
One division tooth is meshed.The upper end of check sleeve is provided with multiple spacing ratchet 137, multiple spacing ratchets
Forming spacing space, in this embodiment, the quantity of spacing ratchet is 2；Clutch knob has button lid
135 and button axle 136, button axle is fixed on the lower surface of button lid, and button axle is fastened in spacing space, and button
There is between axle and spacing ratchet setting axial spacing, specifically, the distance of this setting axial spacing
For 0.8mm, say, that clutch rotates in time doing the axially-movable away from medicine storehouse shell, when axially
When displacement is 0.8mm, the second indexing tooth and the first indexing tooth is just made to be meshed.Clutch knob
Can rotate freely around the axis of the shaft of a writing brush, it is also possible to moving axially along the shaft of a writing brush.The upper end of dial drum is solid
Surely have actively knob 139, and actively knob dial drum be connected together, actively knob be internally provided with rotation
Button draw-in groove, the upper end of dial drum is provided with knob chuck 140, rotates chuck spacing in knob draw-in groove.
The outer surface of active rotation be circumferentially provided with anti-skidding striped.Actively the upper surface of knob offers first
Through hole, button axle is located in the first through hole.
In this embodiment, the first detent mechanism includes the ratchet 141 being arranged on the outer surface of check sleeve,
And the multiple ratchets 145 being arranged on the inwall of dial drum, multiple ratchets are along the week of the inwall of dial drum
Ratchet in uniform cloth, this first detent mechanism has elasticity.When dial drum screws out the shaft of a writing brush clockwise
Time, ratchet is by ratchet backstop, so that check sleeve can rotate with dial drum, when dial drum is inverse
When hour hands screw in the shaft of a writing brush, ratchet can not be by ratchet backstop, so that check sleeve can not be with scale
Cylinder rotates, say, that, it is achieved that check sleeve only does unidirectional rotary motion.Additionally inverse when dial drum
When hour hands screw in the shaft of a writing brush, ratchet contacts with ratchet, can produce the sound rattled away, and user is by listening sound
Acoustic energy recognizes that injection pen normally works.Outside the width of the facewidth of ratchet is not less than the scale on dial drum
The length of screw thread, wherein the facewidth of ratchet is along the width of the axial direction of ratchet.The quantity of ratchet is 1
Individual, the quantity of ratchet is 25, can also be realized the accurate regulation of injection volume by ratchet and ratchet,
And when achieving injection, the rotational angle that dial drum is counterclockwise.The circumference of the outer surface of check sleeve
Be additionally provided with annular sizing boss 146, by annular sizing boss ensure that the axis of check sleeve with
The dead in line of dial drum, it is ensured that ratchet in dial drum with the degree of engagement of ratchet.
In this embodiment, the upper end of check sleeve has draw-in groove 147, and the upper end of return sleeve has card column
148, card column is arranged in draw-in groove, so when check sleeve rotates with axially-movable, and return
Sleeve also is able to along with check sleeve rotates and axially-movable.The quantity of card column is multiple, card
The quantity of groove is multiple；In this embodiment, the quantity of card column and draw-in groove is 6.
In this embodiment, the 3rd clutch includes first spring the 149, second spring 150, two-sided nibbles
Component 151, it is arranged at the first face gear 152 of the lower end of check sleeve and is arranged at return barrel
The second face gear 153 of lower end, the upper surface of two-sided joggle piece is provided with the 3rd face gear 154,
The lower surface of double sided gear is provided with the 4th face gear 155；First spring, two-sided joggle piece and second
Spring is respectively sleeved on return barrel, and wherein, the second spring is positioned at the top of the second face gear,
Two-sided joggle piece is positioned at the top of the second spring, and the first spring is positioned at the top of two-sided joggle piece, and first
Face gear is positioned at the top of the first spring.Specifically, the lower surface of the first face gear is provided with
The gear teeth, the upper surface of the second face gear is provided with the gear teeth, the gear teeth on the first face gear for
The gear teeth on 3rd face gear are meshed, and the gear teeth on the second end face are used for and the 4th face gear
The gear teeth be meshed；The gear teeth on first face gear, the gear teeth on the 3rd face gear, the second end
The gear teeth on face and the gear teeth on the 4th face gear can be ratchet or be isosceles triangle tooth；
Two-sided joggle piece be circumferentially provided with feather key 156, the inwall of the shaft of a writing brush is provided with the keyway corresponding with feather key
157；Feather key is spacing in keyway, so that two-sided joggle piece can moving axially along the shaft of a writing brush.Feather key
Quantity is two, and the quantity of keyway is two, and the length direction of keyway is parallel with the axial direction of the shaft of a writing brush,
The length of keyway is equal with the length of the shaft of a writing brush；The most two-sided joggle piece can only be along the axle of the shaft of a writing brush in the shaft of a writing brush
To motion, and can not rotate around the axis of the shaft of a writing brush, the circumference of two-sided joggle piece is additionally provided with fixed
Position ring 158, ensure that the axis of two-sided joggle piece and the axis collinear of the shaft of a writing brush by locating ring.Work as note
When penetrating, dial drum screws in the shaft of a writing brush counterclockwise, the first end of the lower end of the lower end of dial drum and check sleeve
The upper surface of face gear abuts against, the first indexing tooth and check in the second clutch, on dial drum
The second indexing tooth on sleeve is separated, and in the first detent mechanism, the ratchet on check sleeve is to dial drum
On ratchet no longer play backstop action, therefore dial drum pushes check sleeve and does the axle near medicine storehouse shell
To motion, the first spring and the second spring are all compressed, the gear teeth on such first face gear just with
The gear teeth on 3rd face gear are meshed, the gear teeth on the second end face just with on the 4th face gear
The gear teeth are meshed, and such check sleeve, two-sided joggle piece and return barrel just form an entirety, enter
Row is synchronized with the movement, and owing to two-sided joggle piece can only move along the axial direction of the shaft of a writing brush, therefore dial drum is inverse
When hour hands screw-in pen container moves to the direction near medicine storehouse shell, check sleeve and return barrel also can only
Do and axially move to the direction near medicine storehouse shell, and can not rotate；It should be noted that
When push, due to dial drum, the axially-movable that check sleeve does close medicine storehouse shell, dial drum does counterclockwise
Rotary motion, therefore check sleeve has the trend rotated, but due to the first face gear
On the gear teeth be just meshed with the gear teeth on the 3rd face gear, the gear teeth on the second end face are just with the 4th
The gear teeth on face gear are meshed, and two-sided joggle piece can only the cause of axially-movable, therefore prevent
Check sleeve and the rotary motion of return barrel.
In this embodiment, knurled nut 159 is also provided with feather key, and the feather key of knurled nut is the most spacing at key
In groove, so can strengthen the connection of knurled nut and the shaft of a writing brush, prevent knurled nut from turning around the axis of the shaft of a writing brush
Dynamic.Actively being provided with the second ratchet mechanism between knob and knurled nut, the second ratchet mechanism includes setting
Putting the ratchet on active knob and the ratchet being arranged on knurled nut, actively the ratchet on knob is used
Ratchet in being meshed with the ratchet on knurled nut, on the ratchet on active knob with knurled nut
After being meshed, actively knob can only do clockwise rotary motion around the axis of the shaft of a writing brush, and can not do inverse
The rotary motion of hour hands, is possible to prevent after injection completes by arranging the second ratchet mechanism, dial drum
On zero graduation line and transparent scale window misplace.
The operation principle of the injection pen that the embodiment of the present invention provides is:
1, the dosage Principles of Regulation before injection
After ampoule is inserted into the storage chamber of medicine storehouse shell, the elastic pawl in single direction ratchet mechanism with
Unidirectional ratchet is meshed, and feeding seat can not rotate and can not axially move；3rd clutch
In structure, due to the effect of the first spring, the wheel on the gear teeth the 3rd face gear on the first face gear
Tooth be separated, due to the effect of the second spring, the gear teeth on the second end face just with on the 4th face gear
The gear teeth be separated.Clutch knob is pulled to make in the second clutch, the first separation tooth on dial drum
Being meshed with the second indexing tooth on check sleeve, so turn clockwise dial drum, and dial drum is from pen
When screwing out in pipe, check sleeve the most also rotates and does the axially-movable away from medicine storehouse shell, by
Being connected together with return barrel in check sleeve, therefore return barrel also rotates and does away from medicine
The axially-movable of storehouse shell, due to the on the first screw thread on the upper semisection of reverse-flighted screw and lower semisection
The thread rotary orientation of two screw threads is contrary, and therefore when return barrel rotates, reverse-flighted screw can be protected with the shaft of a writing brush
Hold geo-stationary, say, that return barrel rotates, and reverse-flighted screw does not rotates, the most just realize there is note
Dosage regulation before penetrating.
2, injection principle
After the drug dose required when regulation injection, unclamp clutch knob, in the second clutch,
The first separation tooth on dial drum is separated with the second indexing tooth on check sleeve, presses clutch knob,
Just make dial drum screw in the shaft of a writing brush counterclockwise, due to dial drum lower end and check sleeve lower end the
The upper surface of end face gear abuts against, the effect forced downwards of check sleeve, the first spring
The most all compressed with the second spring, the gear teeth on such first face gear just with on the 3rd face gear
The gear teeth be meshed, the gear teeth on the second end face are just meshed with the gear teeth on the 4th face gear, this
Sample check sleeve, two-sided joggle piece and return barrel just form an entirety, are synchronized with the movement, separately
Check sleeve can only be made to do unidirectional rotary motion, now on check sleeve due to the first detent mechanism outward
Ratchet on dial drum is no longer played backstop action by ratchet, owing to two-sided joggle piece can only be along the axle of the shaft of a writing brush
Moving to direction, therefore check sleeve and return barrel the most only do and do axle to the direction near medicine storehouse shell
To motion, due to the upper semisection screw connection of return barrel Yu reverse-flighted screw, owing to upper semisection is by return
The downward axial force of barrel, therefore the upper semisection of reverse-flighted screw the most constantly screws in return barrel, additionally
The upper semisection of reverse-flighted screw and lower semisection are an entirety, such lower semisection also by return barrel to
Under axial force, therefore the lower semisection of reverse-flighted screw just constantly downwards screws in feeding seat, so injects post
Plug just moves to the direction of injection needle in ampoule, and the medicament in ampoule is just discharged, thus real
Now inject.
3, it is intended for single use principle
Turn clockwise medicine storehouse seat so that after Zuo Yuyao storehouse, medicine storehouse shell screws, the elasticity on feeding seat
Ratchet is meshed with the unidirectional ratchet on the shell of medicine storehouse, when wanting rotary medicine storehouse seat counterclockwise, and elastic thorn
Pawl and unidirectional ratchet just mutual backstop, thus just can not continue rotary medicine storehouse counterclockwise seat, the most just can not
Can will pull down, it is achieved thereby that be intended for single use injection pen on the shell of Zuo Congyao storehouse, medicine storehouse.
In sum, the injection pen that the embodiment of the present invention provides, by arranging single direction ratchet mechanism, when
After ampoule is inserted into the storage chamber of medicine storehouse shell, after Zuo Yuyao storehouse, medicine storehouse outer casing screw is connected,
Elastic pawl on feeding seat is meshed with the unidirectional ratchet on the seat of medicine storehouse, medicine storehouse toilet can only to medicine
The direction that storehouse shell is tightened rotates, and can not rotate in the opposite direction, the most just can not be by medicament
Bottle takes out from the shell of medicine storehouse, it is achieved thereby that the purpose being intended for single use, it is to avoid what secondary utilized can
Energy property, safe and reliable.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than
It is limited；Although the present invention being described in detail with reference to foregoing embodiments, this area
Those of ordinary skill is it is understood that the technical scheme described in foregoing embodiments still can be entered by it
Row amendment, or the most some or all of technical characteristic is carried out equivalent；And these amendment or
Person replaces, and does not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. an injection pen, it is characterised in that include dosage regulation portion and medicine storehouse portion；Described medicine storehouse portion
The ampoule of medicament it is preinstalled with for storage；Medicament agent when described dosage regulation portion is for regulating injection
Amount, and make described ampoule discharge the medicament setting dosage；
Described medicine storehouse portion includes that medicine storehouse shell and single direction ratchet mechanism, described single direction ratchet mechanism include medicine
One end of storehouse seat, feeding seat, elastic pawl and unidirectional ratchet, described medicine storehouse seat and described medicine storehouse shell
Threaded；Described feeding seat is fixed in the seat of described medicine storehouse；Described elastic pawl is arranged on institute
Stating on feeding seat, described unidirectional ratchet is arranged on the upper end of described medicine storehouse shell；Described elastic pawl with
Described unidirectional ratchet is meshed；
Described dosage regulation portion includes the shaft of a writing brush, dial drum, check sleeve, return barrel and reverse-flighted screw；
One end of the described shaft of a writing brush removably connects with described medicine storehouse seat；
Described dial drum is located in the described shaft of a writing brush, and described dial drum is threadeded with the described shaft of a writing brush；
Described check sleeve is located in described dial drum, and the inwall of described dial drum and described check
The second clutch it is provided with, for revolving from the described shaft of a writing brush when described dial drum between the upper end of sleeve
When going out, enable described dial drum to drive described check sleeve to rotate and away from described medicine storehouse outside
The axially-movable of shell；
It is provided with the first detent mechanism between inwall and the outer wall of described check sleeve of described dial drum,
For making described check sleeve do unidirectional rotary motion；
Described return barrel is located in described check sleeve, and the upper end of described return barrel is with described
The upper end of check sleeve is connected together；
It is provided with the 3rd clutch between lower end and the lower end of described return barrel of described check sleeve
Structure, for when described dial drum screws in the described shaft of a writing brush, making described check sleeve and described return barrel
Do the axially-movable near described medicine storehouse shell；
Described reverse-flighted screw is located in described return barrel, described reverse-flighted screw include upper semisection and under
Half section, described upper semisection is threadeded with described return barrel；Described feeding cover for seat is located at described lower half
Duan Shang, and described feeding seat threadeds with described lower semisection.
Injection pen the most according to claim 1, it is characterised in that: described upper semisection has first
Screw thread, described lower semisection has the second screw thread, and described first screw thread revolves with the screw thread of described second screw thread
To on the contrary.
Injection pen the most according to claim 1 and 2, it is characterised in that: described second clutch
Structure includes the multiple first indexing teeth being arranged on the inwall of the upper end of described dial drum, and is arranged on
Multiple second indexing teeth of the upper end of described check sleeve, described first indexing tooth is for described second
Indexing tooth is meshed.
Injection pen the most according to claim 3, it is characterised in that: the upper end of described check sleeve
It is provided with clutch knob, makes it do the axial fortune away from described medicine storehouse shell when pulling described clutch knob
Time dynamic, described clutch knob can drive described check sleeve to do the axial fortune away from described medicine storehouse shell
Dynamic, so that the second indexing tooth on described check sleeve and the described first indexing tooth on described dial drum
It is meshed.
Injection pen the most according to claim 4, it is characterised in that: the upper end of described check sleeve
Being provided with multiple spacing ratchet, multiple described spacing ratchets form spacing space；Described clutch knob has
Having button lid and button axle, described button axle is fixed on the lower surface of button lid, and described button axle is fastened on described spacing
In space, and between described button axle and described spacing ratchet, there is setting axial spacing.
Injection pen the most according to claim 5, it is characterised in that: the upper end of described dial drum is solid
Surely there is actively knob, and dial drum described in described active knob is connected together；
The upper surface of described active knob offers the first through hole, and described button axle is located in described first and leads to
Kong Zhong.
Injection pen the most according to claim 1 and 2, it is characterised in that: described first ratchet machine
Structure includes the ratchet being arranged on the outer surface of described check sleeve, and is arranged on the interior of described dial drum
Multiple ratchets on wall, multiple described ratchets are along the circumference uniformly cloth of the inwall of described dial drum.
Injection pen the most according to claim 1 and 2, it is characterised in that: described 3rd clutch
Structure includes the first spring, the second spring, two-sided joggle piece, is arranged at the lower end of described check sleeve
First face gear and be arranged at second face gear of lower end of described return barrel, described two-sided
The upper surface of joggle piece is provided with the 3rd face gear, and the lower surface of described double sided gear is provided with the 4th
Face gear；Described first spring, described two-sided joggle piece and described second spring are respectively sleeved at institute
Stating on return barrel, wherein, described second spring is positioned at the top of described second face gear, described
Two-sided joggle piece is positioned at the top of described second spring, and described first spring is positioned at described two-sided joggle piece
Top, described first face gear is positioned at the top of described first spring.
Injection pen the most according to claim 8, it is characterised in that: the week of described two-sided joggle piece
To being provided with feather key, the inwall of the described shaft of a writing brush is provided with the keyway corresponding with described feather key；Described cunning
Key is spacing in described keyway, so that described two-sided joggle piece can moving axially along the described shaft of a writing brush.
Injection pen the most according to claim 1, it is characterised in that: described medicine storehouse shell another
One end is provided with injection needle, and described injection needle removably connects with medicine storehouse shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329474.XA CN105944186B (en) | 2016-05-18 | 2016-05-18 | A kind of injection pen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329474.XA CN105944186B (en) | 2016-05-18 | 2016-05-18 | A kind of injection pen |
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| Publication Number | Publication Date |
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| CN105944186A true CN105944186A (en) | 2016-09-21 |
| CN105944186B CN105944186B (en) | 2019-08-02 |
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Cited By (5)
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| CN106267474A (en) * | 2016-09-27 | 2017-01-04 | 严虎荣 | A kind of injection novopen automatically |
| CN106725940A (en) * | 2017-02-07 | 2017-05-31 | 吴大怡 | Adjustable ram |
| CN106983931A (en) * | 2017-05-08 | 2017-07-28 | 甘肃成纪生物药业有限公司 | A kind of injection pen |
| CN107308523A (en) * | 2017-08-08 | 2017-11-03 | 甘肃成纪生物药业有限公司 | Finely tune injection pen |
| WO2018205409A1 (en) * | 2017-05-08 | 2018-11-15 | 甘肃成纪生物药业有限公司 | Injection pen |
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| CN202802378U (en) * | 2012-06-29 | 2013-03-20 | 甘李药业股份有限公司 | Pen-type injector |
| CN103041476A (en) * | 2012-12-04 | 2013-04-17 | 邓源基 | Metering adjustable injector |
| CN105288790A (en) * | 2014-06-26 | 2016-02-03 | 群康生技股份有限公司 | Syringe |
| CN105477743A (en) * | 2015-06-11 | 2016-04-13 | 江苏德尔福医疗器械有限公司 | Dose-adjustable disposable injection pen |
| CN105477745A (en) * | 2015-06-11 | 2016-04-13 | 江苏德尔福医疗器械有限公司 | Dose-adjustable reusable injection pen |
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| CN106267474A (en) * | 2016-09-27 | 2017-01-04 | 严虎荣 | A kind of injection novopen automatically |
| CN106725940A (en) * | 2017-02-07 | 2017-05-31 | 吴大怡 | Adjustable ram |
| CN106983931A (en) * | 2017-05-08 | 2017-07-28 | 甘肃成纪生物药业有限公司 | A kind of injection pen |
| WO2018205409A1 (en) * | 2017-05-08 | 2018-11-15 | 甘肃成纪生物药业有限公司 | Injection pen |
| 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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