CN109331295A - A kind of injection pen - Google Patents
A kind of injection pen Download PDFInfo
- Publication number
- CN109331295A CN109331295A CN201811427038.1A CN201811427038A CN109331295A CN 109331295 A CN109331295 A CN 109331295A CN 201811427038 A CN201811427038 A CN 201811427038A CN 109331295 A CN109331295 A CN 109331295A
- Authority
- CN
- China
- Prior art keywords
- needle
- injection
- triggering
- shell
- needle housing
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 139
- 239000007924 injection Substances 0.000 title claims abstract description 139
- 239000003814 drug Substances 0.000 claims abstract description 26
- 230000000712 assembly Effects 0.000 claims abstract description 23
- 238000000429 assembly Methods 0.000 claims abstract description 23
- 210000002421 cell wall Anatomy 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 230000001960 triggered effect Effects 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 14
- 238000000926 separation method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004500 asepsis Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
-
- 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
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2026—Semi-automatic, e.g. user activated piston is assisted by additional source of energy
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 discloses a kind of injection pens, comprising: shell, shell is interior to be equipped with clamped bottle medicine needle assemblies and brake apparatus；Set on shell one end, the protecting cap for preventing false triggering brake apparatus；Needle housing is triggered, triggering needle housing is sheathed between shell and brake apparatus, is triggered and is equipped between needle housing and shell for driving the mobile elastic component to hide the injection needle of clamped bottle medicine needle assemblies of triggering needle housing after injection；It triggers needle housing to be clamped with brake apparatus before the injection, be popped up before the injection by elastic component to avoid triggering needle housing；Triggering needle housing and brake apparatus can separate during clamped bottle medicine needle assemblies are mobile.Triggering needle housing in the present invention is combinable and separable with brake apparatus, triggering needle housing is prevented to be released by false triggering using the protecting cap of false-touch prevention brake apparatus, it is ejected so as to solve the problems, such as to inject preceding triggering needle housing, to ensure integrality and safety of the injection pen in transport and storing process.
Description
Technical field
The present invention relates to the field of medical instrument technology, more specifically to a kind of injection pen.
Background technique
As the burst diseases such as cardiovascular and cerebrovascular illness rate increases year by year, for burst disease self-management injection pen by
Gradually it is applied.
The injection pen of this emergency is usually equipped with clamped bottle and injection needle in advance, and has brake apparatus, Neng Goushi
The function of existing one-touch automatic injection.Meanwhile in order to reduce user to the fear and psychological pressure of needle, injection pen is usually wrapped
Include the hidden needle for hiding injection needle.
The end of hidden needle in the prior art is typically provided with four buckles, four buckles and four cards being set in the housing
Slot can be clamped correspondingly and separate, so that the combinable and separable of hidden needle and shell can be realized.When original state,
Hidden needle is in conjunction with shell, when injecting after pulling out protecting cap, hidden needle and injection position is collided, and apply to hidden needle and press
Power keeps hidden needle mobile relative to shell, and triggering brake apparatus movement is finally completed injection；Meanwhile when hidden needle is moved with respect to shell
When dynamic, four are buckled to the gathering of the axle center of hidden needle, to realize point of hidden needle and shell with the exact separation on shell
From being released hidden needle.When the pressure that release applies hidden needle, under the action of the elastic component being connected with hidden needle,
It drives hidden needle to pop up a certain distance in the opposite direction with respect to shell, injection needle is hidden.
However, the injection pen of this structure, under external force, hidden needle are easy to be isolated release with shell,
That is, hidden needle is difficult to remain that the position before injection is constant, therefore, be easy to cause false triggering so that injection pen transport,
Storage and using when integrality and safety be difficult to ensure.
It is current those skilled in the art in conclusion how to provide a kind of injection pen that can prevent the hidden needle of false triggering
Member's urgent problem to be solved.
Summary of the invention
In view of this, can solve the maloperation of triggering needle housing before injection the object of the present invention is to provide a kind of injection pen
Problem, to ensure integrality and safety of the injection pen in transport and storing process.
To achieve the goals above, the invention provides the following technical scheme:
A kind of injection pen, comprising:
Shell, the shell is interior to be equipped with clamped bottle medicine needle assemblies, for driving the clamped bottle medicine needle assemblies to injection side
To mobile brake apparatus；
One end set on the shell, the protecting cap for preventing brake apparatus described in false triggering；
For being collided with injection position to trigger the brake apparatus and after injection by the clamped bottle medicine in injection
The hiding triggering needle housing of the injection needle of needle assemblies, the triggering needle housing are sheathed between the shell and the brake apparatus, institute
It states and is equipped between triggering needle housing and the shell for driving the triggering needle housing mobile with the injection needle is hidden after injection
The elastic component of hiding；The triggering needle housing is clamped with the brake apparatus before the injection, before the injection to avoid the triggering needle housing
It is popped up by the elastic component；The triggering needle housing and the brake apparatus divide during the clamped bottle medicine needle assemblies are mobile
From.
Preferably, the brake apparatus includes being sheathed in the triggering needle housing and for accommodating the clamped bottle medicine needle group
The cassette bottle rack of part, first buckle of the inner wall of the triggering needle housing circumferentially arranged at least one convex, the clamped bottle
The side wall of bracket is equipped with:
For corresponding the card slot of clamping with first buckle；
It is suspended in the card slot and flexible first elastic slice, extruding of first elastic slice in first buckle
Under can radially swing in the cassette bottle rack, and can radially be shown when the clamped bottle medicine needle assemblies are moved to the card slot
The cassette bottle rack, so that first buckle and the exact separation.
Preferably, the free end of first elastic slice is equipped with convex for facilitating first buckle to be detached from the card slot
The portion of rising, the lug boss protrude from the inner wall of the cassette bottle rack.
Preferably, further includes:
Between the triggering needle housing and the shell, for being prevented after the triggering needle housing hides the injection needle
The self-locking mechanism that the triggering needle housing retreats.
Preferably, the self-locking mechanism includes:
Set on it is described triggering needle housing peripheral part at least one second buckle, it is described second buckle be equipped with for it is described
The Ka Gou of the end clamping of shell, second buckle have elasticity, can radially-inwardly receive under the extruding of the shell end
Contracting is clamped so that the shell end can finally cooperate with the Ka Gou.
Preferably, the peripheral part of the triggering needle housing be equipped with the one-to-one recessing groove of second buckle, described the
Two buckle include:
It is connected with the first cell wall of the recessing groove and tilts the second elastic slice for protruding from the notch of the recessing groove, institute
It states Ka Gou and is set to the one end of second elastic slice far from first cell wall, and the second cell wall of the Ka Gou and the recessing groove
It is connected, second cell wall is opposite with first cell wall；Second elastic slice can be to institute under the extruding of the shell end
Recessing groove contract is stated, and elastic deformation can be restored when releasing the extruding force of the shell end, so that the end of the shell
Portion is caught in the Ka Gou.
Preferably, the clamped bottle medicine needle assemblies include clamped bottle and injection needle, the clamped bottle and the injection needle phase
It is mutually independent to be disposed in the housing.
Preferably, the injection needle includes:
Needle stand and twolip needle body set on the needle stand；
Set on the needle stand towards one end of mouth cylindrical part of the clamped bottle, one end for sealing the twolip needle body
Seal film；
It is connected and is sheathed on the needle helmet of the exposed peripheral part of the twolip needle body other end with the other end of the needle stand,
The needle helmet is compressible.
Injection pen provided by the invention is connected due to triggering needle housing before injecting with brake apparatus, and shell is far from triggering needle
One end of cover is equipped with the protecting cap for preventing false triggering brake apparatus, therefore, under the action of protecting cap, even triggers needle
Cover will not cause brake apparatus to act by false triggering, and triggering needle housing also can not just be separated with brake apparatus, therefore, elastic component
It can not be by triggering needle housing pop-up, so as to guarantee integrality and safety of the injection pen during transport and storage；It is infusing
When penetrating, protecting cap is extracted, makes to trigger the i.e. triggerable brake apparatus of needle housing collision injection position, and in the effect of brake apparatus
Under, injection is completed, and triggering needle housing can separate when injection process intermediate champing bottle medicine needle assemblies are mobile with brake apparatus, obtain
Release, therefore, after the completion of injection, when triggering needle housing is detached from injection position, elastic component can drive triggering needle housing towards injection side
To pop-up, after injection to hide injection needle, the problems such as surprisingly stabbing caused by injection needle is exposed is avoided.
That is, and separable connection type combinable using triggering needle housing and shell in compared with the prior art,
Triggering needle housing in the present invention is combinable and separable with brake apparatus, prevents from touching using the protecting cap of false-touch prevention brake apparatus
Hairpin cover is released by false triggering, is ejected so as to solve the problems, such as to inject preceding triggering needle housing, to ensure that injection pen exists
Integrality and safety in transport and storing process.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the cross-sectional view of injection pen specific embodiment provided by the present invention；
Fig. 2 is the explosive view of injection pen shown in Fig. 1；
Fig. 3 is the first partial schematic diagram of Fig. 1；
Fig. 4 is the second partial schematic diagram of Fig. 1.
Appended drawing reference in Fig. 1 to Fig. 4 is as follows:
1 it is shell, 11 be front housing, 12 be rear shell, 2 be clamped bottle, 3 be injection needle, 31 be needle stand, 4 be protecting cap, 5 is
Triggering needle housing, 51 for the first buckle, 52 are recessing groove, 53 are the second buckle, 6 are elastic component, 71 are cassette bottle rack, 711 are
Card slot, 712 be the first elastic slice, 713 be lug boss, 72 be sleeve, 73 be push rod, 74 be power spring, 8 be sealing ring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of injection pen, can solve the maloperation problem of triggering needle housing before injection, with true
Protect integrality and safety of the injection pen in transport and storing process.
Fig. 1-Fig. 4 is please referred to, Fig. 1 is the cross-sectional view of injection pen specific embodiment provided by the present invention；Fig. 2 is Fig. 1 institute
Show the explosive view of injection pen；Fig. 3 is the first partial schematic diagram of Fig. 1；Fig. 4 is the second partial schematic diagram of Fig. 1.
The present invention provides a kind of injection pen, clamped bottle medicine needle assemblies and braking dress including shell 1 and in shell 1
It sets, clamped bottle medicine needle assemblies can be moved relative to shell 1, to move towards injection direction, and most under the action of brake apparatus
Injection is completed eventually.
One end of shell 1 is equipped with the protecting cap 4 for preventing false triggering brake apparatus, pulls out protecting cap 4 that is, only working as
When, brake apparatus can just be triggered, and when not pulling out protecting cap 4, brake apparatus will be unable to be triggered.
The other end of shell 1 is arranged with triggering needle housing 5 that can be mobile relative to shell 1, and triggering needle housing 5 can be tied with brake apparatus
It closes and separable, in the initial state, that is, triggering needle housing 5 and brake apparatus are always before injection pen assembly is completed to injection
Bonding state is kept, when injection, injection position can be collided by making to trigger needle housing 5 and trigger brake apparatus, in injection process,
With the movement of clamped bottle medicine needle assemblies, triggering needle housing 5 can separate with brake apparatus, trigger needle housing 5 with release, complete injection
Triggering needle housing 5 can pop up shell 1 outward relatively under the action of elastic component 6 being attached thereto afterwards, to block clamped bottle medicine needle
The injection needle 3 of component, injection needle 3 is hidden.
It is understood that when triggering needle housing 5 is combined with brake apparatus, that is, in triggering needle housing 5 and brake apparatus
Before separation, elastic component 6 is constantly in compressive state, to make elastic component 6 have certain elastic restoring force, when triggering needle
After cover 5 is separated with brake apparatus, under the action of the elastic restoring force of elastic component 6, driving triggering needle housing 5 is mobile, thus will note
Injection needle 3 after the completion of penetrating covers completely, exposed to avoid injection needle 3, unexpected occur such as causes accidentally to stab.
In view of simple and the being easy to implement property of the specific structure of elastic component 6, it is preferable that elastic component 6 is spring, triggers needle
The peripheral part of cover 5 is equipped with the shoulder block to offset for one end with spring, and the inner peripheral portion of shell 1 is equipped with for the other end with spring
The abutment to offset.
The present invention to the specific structure and its working principle of brake apparatus without limitation, reference can be made to the prior art.
In conclusion injection pen provided by the invention, since triggering needle housing 5 is connected with brake apparatus before injecting, and shell 1
One end far from triggering needle housing 5 is equipped with the protecting cap 4 for preventing false triggering brake apparatus, therefore, in the effect of protecting cap 4
Under, even triggering needle housing 5 will not cause brake apparatus to act by false triggering, and triggering needle housing 5 also just can not be with brake apparatus
Separation, therefore, elastic component 6 can not pop up triggering needle housing 5, so as to guarantee that injection pen is complete during transport and storage
Whole property and safety；In injection, protecting cap 4 is extracted, makes to trigger the i.e. triggerable brake apparatus of the collision of needle housing 5 injection position,
And under the action of brake apparatus, injection is completed, and triggering needle housing 5 can when injection process intermediate champing bottle medicine needle assemblies are mobile
It separates, is released with brake apparatus, therefore, after the completion of injection, when triggering needle housing 5 is detached from injection position, elastic component 6 can
Driving triggering needle housing 5 is popped up towards injection direction, unexpected caused by avoiding injection needle 3 exposed after injection to hide injection needle 3
The problems such as stabbing.
That is, and separable connection side combinable using triggering needle housing 5 and shell 1 in compared with the prior art
Formula, the present invention in triggering needle housing 5 it is combinable and separable with brake apparatus, using the protecting cap 4 of false-touch prevention brake apparatus come
It prevents triggering needle housing 5 to be released by false triggering, is ejected so as to solve the problems, such as to inject preceding triggering needle housing 5, to ensure
Integrality and safety of the injection pen in transport and storing process.
It is understood that the end of triggering needle housing 5 is equipped with injection orifice, one end of shell 1 towards triggering needle housing 5 is equipped with close
Seal 8.
In view of the convenience of assembly, shell 1 includes front housing 11 and rear shell 12.
In view of simple and the being easy to implement property of brake apparatus specific structure, it is preferable that brake apparatus includes for accommodating
The cassette bottle rack 71 and sleeve 72 of clamped bottle medicine needle assemblies, it is preferable that cassette bottle rack 71 and sleeve 72 are respectively used to accommodate
The injection needle 3 and clamped bottle 2 of clamped bottle medicine needle assemblies, with convenient for assembly；Brake apparatus further includes being movably disposed in sleeve 72
The interior and push rod 73 being connected with clamped bottle 2 and the power spring that one end is connected with push rod 73 and the other end is connected with sleeve 72
74.Cassette bottle rack 71 is sheathed in triggering needle housing 5, and one end that cassette bottle rack 71 stretches out triggering needle housing 5 is connected with sleeve 72,
The other end of sleeve 72 can be clamped and separate with push rod 73, and one end that push rod 73 is connected with sleeve 72 is equipped with slot, for inserting
If the inserting column of protecting cap 4, after in the inserting column insertion slot of protecting cap 4, under the radial compression effect of inserting column, push rod 73 and set
Cylinder 72 is clamped, and is locked between push rod 73 and sleeve 72 at this point, power spring 74 is in compressive state, brake apparatus will be unable to
It is triggered；After extracting protecting cap 4, inserting column is separated with slot, at this moment, after triggering needle housing 5 and injection position collision, will be pushed
Cassette bottle rack 71 is mobile to the direction opposite with injection direction, and then sleeve 72 is pushed to link, and makes sleeve 72 and push rod 73
Wedging position separation, so that push rod 73 be made thoroughly to be discharged, push rod 73 is moved under the action of power spring 74 along injection direction,
It pushes clamped bottle 2 and injection needle 3 mobile to injection position, is finally completed injection.
In view of triggering needle housing 5 and brake apparatus is combinable and separable specific implementation, in above-described embodiment
On basis, the inner wall of needle housing 5 is triggered circumferentially arranged at least one the first buckle 51, the side wall of cassette bottle rack 71, which is equipped with, to be used
In the card slot 711 and flexible first elastic slice 712 that correspond clamping with the first buckle 51, the first elastic slice 712 is set to card
In slot 711, the first elastic slice 712 can be radially into cassette bottle rack 71 under the squeezing action of the first buckle 51, when injection needle 3
Needle stand 31 be moved at card slot 711, the first elastic slice 712 can make under the squeezing action of needle stand 31 first buckle 51 be detached from card slot
711。
That is, the present embodiment realizes triggering needle housing 5 and clamped bottle branch by the clamping of the first buckle 51 and card slot 711
The clamping of frame 71 combines, and the disengaging of the first buckle 51 and card slot 711 is realized by the first elastic slice 712.
Specifically, the first elastic slice 712 be card slot 711 in cantilever part, one end of the first elastic slice 712 preferably with card slot 711
Cell wall be structure as a whole, have between another cell wall of the corresponding card slot 711 of the other end of the first elastic slice 712 certain
Distance, to avoid the swing of the first elastic slice 712 of interference.First elastic slice 712 has elasticity, to be caught in card slot in the first buckle 51
When 711, the inside of cassette bottle rack 71 is radially swung under the squeezing action of the first buckle 51, with the first buckle 51 of stepping down, is made
First buckle 51 is clamped with card slot 711.
In injection process, with the movement of needle stand 31, when needle stand 31 is moved at card slot 711, due to needle stand 31 with
The inner wall of cassette bottle rack 71 is slidably cooperatively connected, and therefore, under the radial compression effect of needle stand 31, makes the first elastic slice
712 radially outward pop up, take off the first buckle 51 out of card slot 711
From the separation of realization triggering needle housing 5 and cassette bottle rack 71.
It is understood that the quantity of card slot 711, the first elastic slice 712 and the first 51 threes of buckle is equal, and three is one by one
It is corresponding, that is, single first buckle 51, card slot 711 and the first elastic slice 712, which form one, can be clamped and separable buckle group,
Buckle group as multiple groups can be set between triggering needle housing 5 and cassette bottle rack 71, multiple groups buckle group circumferentially can uniformly divide
Cloth.
In view of the function and effect of the first elastic slice 712, on the basis of above-described embodiment, the freedom of the first elastic slice 712
End is equipped with the lug boss 713 of the inner wall for facilitating the first buckle 51 that cassette bottle rack 71 is detached from and protruded from card slot 711.
It is understood that being rapidly separated for the first buckle 51 and card slot 711 may be implemented in lug boss 713, to improve two
The sensitivity of person's separation.The side of end of the lug boss 713 far from the first elastic slice 712 is equipped with chamfering, with moving along injection needle 3
Direction guiding, is convenient for the smooth movement of injection needle 3.
In addition, because maloperation causes to trigger needle housing 5 and retreat to make to inject after injection needle 3 is hidden in order to avoid triggering needle housing 5
Needle 3 is exposed again, on the basis of any of the above-described embodiment, further includes: between triggering needle housing 5 and shell 1, is used for
The self-locking mechanism for preventing triggering needle housing 5 from retreating after triggering needle housing 5 and hiding injection needle 3.
That is, the present embodiment makes to trigger needle housing 5 by self-locking mechanism and shell 1 is locked, exist to avoid triggering needle housing 5
It is retracted under external force in shell 1.
In view of the implementation of self-locking mechanism, on the basis of above-described embodiment, self-locking mechanism includes being set to triggering
At least one second buckle 53 of the peripheral part of needle housing 5, the second buckle 53 are equipped with for the Ka Gou with the clamping of the end of shell 1,
Second buckle 53 has elasticity, can radially-inwardly shrink under the squeezing action by 1 end of shell, so that 1 end of shell is most
It can cooperate eventually with Ka Gou and be clamped.
It is understood that the second buckle 53 is located inside shell 1 when triggering needle housing 5 and brake apparatus is clamped, work as touching
After hairpin cover 5 is separated with brake apparatus, and after injection triggering needle housing 5 by elastic component 6 pop up when, 1 end of shell squeeze second
Buckle 53 enables the second buckle 53 to be ejected to shell 1, when the second buckle 53 is detached from the moments of 1 ends of shell, due to
Elastic restoring force restores deformation, is clamped 1 end of shell and Ka Gou, and realization triggering needle housing 5 is self-locking with shell 1, makes to trigger needle
Cover 5 can not be retracted under external force in shell 1.
On the basis of above-described embodiment, self-locking mechanism further includes blocking set on the peripheral part for triggering needle housing 5 and with second
53 one-to-one recessing grooves 52 are detained, recessing groove 52 is used for the second buckle 53 of stepping down when the second buckle 53 is radially-inwardly shunk.
Second buckle 53 includes the second elastic slice being connected with the first cell wall of recessing groove 52, the second elastic slice from the first cell wall to
The notch for protruding from recessing groove 52 of outer incline, Ka Gou are set to the one end of the second elastic slice far from the first cell wall, and Ka Gou and resigning
Second cell wall of slot 52 is connected, and the second cell wall is oppositely arranged with the first cell wall；Second elastic slice is under the squeezing action of 1 end of shell
Can be to 52 contract of recessing groove, after 1 end of shell releases the extruding force to the second elastic slice, the second elastic slice can pop up recessing groove
52, restore elastic deformation, so that the end of shell 1 is caught in card ditch.After being caught in card ditch due to 1 end of shell, the end of shell 1
Face and the end of the second elastic slice offset, and therefore, when maloperation triggers needle housing 5, make in the abutting of 1 end face of shell and the second elastic slice
Under, triggering needle housing 5 can not be retreated, and form locking state with shell 1.
In view of the aseptic safe of injection needle 3, on the basis of above-described embodiment, clamped bottle medicine needle assemblies include card
Formula bottle 2 and injection needle 3, clamped bottle 2 and injection needle 3 are mutually independent in shell 1.
That is, clamped bottle 2 and injection needle 3 keep respective after clamped bottle 2 and injection needle 3 are previously charged into injection pen
Independence and package integrity properties, avoid injection needle 3 from impregnating in the medical fluid of clamped bottle 2, pollute.
In view of the specific structure of injection needle 3, on the basis of above-described embodiment, injection needle 3 includes needle stand 31 and sets
The twolip needle body on needle stand 31 is set, in order to ensure the safety asepsis of injection needle 3, one end of needle stand 311 and is sheathed on injection needle 3
The needle helmet of the exposed peripheral part of one end is connected, and the other end of needle stand 31 is equipped with the sealing of the other end for sealing injection needle 3
Injection needle 3 is fully sealed film.Seal mouth cylindrical part of the film towards clamped bottle 2.
That is, the present embodiment realizes the sealing at 3 both ends of injection needle by needle helmet and sealing film respectively, and combine
Needle stand 31 achievees the effect that injection needle 3 is hermetically sealed.
When injection, under the action of brake apparatus, the mouth cylindrical part of clamped bottle 2 punctures sealing film first, and continues to move to, and makes
Twolip needle body punctures mouth cylindrical part, after twolip needle body punctures mouth cylindrical part and clamped bottle 2 realizes complete clamping, in the drive of brake apparatus
Under the action of power, mouth cylindrical part pushes needle stand 31 to continue to move to, until the other end of twolip needle body pierces through needle helmet and continues to move
It is dynamic, since needle helmet is compressible, needle helmet stacks during needle stand 31 continues to move to, so that twolip needle body is separate
One end of clamped bottle 2 is stretched out, and injection is finally completed.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.
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.
Injection pen provided by the present invention is described in detail above.Specific case used herein is to the present invention
Principle and embodiment be expounded, method and its core of the invention that the above embodiments are only used to help understand
Thought is thought.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention,
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection scope of the claims in the present invention
It is interior.
Claims (8)
1. a kind of injection pen characterized by comprising
Shell (1), the shell (1) is interior to be equipped with clamped bottle medicine needle assemblies, for driving the clamped bottle medicine needle assemblies to injection
The mobile brake apparatus in direction；
One end set on the shell (1), the protecting cap (4) for preventing brake apparatus described in false triggering；
For being collided with injection position to trigger the brake apparatus and after injection by the clamped bottle medicine needle group in injection
The hiding triggering needle housing (5) of the injection needle (3) of part, the triggering needle housing (5) are sheathed on the shell (1) and the brake apparatus
Between, it is equipped between the triggering needle housing (5) and the shell (1) for driving the triggering needle housing (5) mobile after injection
With the elastic component (6) for hiding the injection needle (3)；The triggering needle housing (5) is clamped with the brake apparatus before the injection, with
The triggering needle housing (5) is avoided to be popped up before the injection by the elastic component (6)；The triggering needle housing (5) can be in the cassette
It is separated during bottle medicine needle assemblies are mobile with the brake apparatus.
2. injection pen according to claim 1, which is characterized in that the brake apparatus includes being sheathed on the triggering needle housing
(5) the cassette bottle rack (71) in and for accommodating the clamped bottle medicine needle assemblies, the inner wall of triggering needle housing (5) is circumferentially
The first buckle (51) equipped at least one convex, the side wall of the cassette bottle rack (71) are equipped with:
For corresponding the card slot (711) of clamping with first buckle (51)；
It is suspended in the card slot (711) and flexible first elastic slice (712), first elastic slice (712) is described the
It can radially swing in the cassette bottle rack (71) under the extruding of one buckle (51), and be moved in the clamped bottle medicine needle assemblies
The cassette bottle rack (71) can be radially shown when card slot (711), so that first buckle (51) and the card slot
(711) it separates.
3. injection pen according to claim 2, which is characterized in that the free end of first elastic slice (712) is equipped with and is used for
The lug boss (713) for facilitating first buckle (51) and the card slot (711) to be detached from, the lug boss (713) protrude from
The inner wall of the cassette bottle rack (71).
4. injection pen according to claim 1-3, which is characterized in that further include:
Between the triggering needle housing (5) and the shell (1), for hiding the injection needle when the triggering needle housing (5)
(3) self-locking mechanism for preventing triggering needle housing (5) from retreating after.
5. injection pen according to claim 4, which is characterized in that the self-locking mechanism includes:
Set at least one second buckle (53) of the peripheral part of triggering needle housing (5), second buckle (53), which is equipped with, to be used
In the Ka Gou with the clamping of the end of the shell (1), second buckle (53) has elasticity, in the shell (1) end
It can radially-inwardly shrink under squeezing, be clamped so that the shell (1) end can finally cooperate with the Ka Gou.
6. injection pen according to claim 5, which is characterized in that it is described triggering needle housing (5) peripheral part be equipped with it is described
The one-to-one recessing groove (52) of second buckle (53), second buckle (53) include:
It is connected with the first cell wall of the recessing groove (52) and tilts the second bullet for protruding from the notch of the recessing groove (52)
Piece, the Ka Gou are set to the one end of second elastic slice far from first cell wall, and the Ka Gou and the recessing groove (52)
The second cell wall be connected, second cell wall is opposite with first cell wall；Second elastic slice is in the shell (1) end
It can restore elastic shape to the recessing groove (52) contract, and when releasing the extruding force of shell (1) end under squeezing
Become, so that the end of the shell (1) is caught in the Ka Gou.
7. injection pen according to claim 4, which is characterized in that the clamped bottle medicine needle assemblies include clamped bottle (2) and
Injection needle (3), the clamped bottle (2) and the injection needle (3) are mutually independent in the shell (1).
8. injection pen according to claim 7, which is characterized in that the injection needle (3) includes:
Needle stand (31) and the twolip needle body for being set to the needle stand (31)；
Set on the needle stand (31) towards the clamped bottle (2) mouth cylindrical part one end, one for sealing the twolip needle body
The sealing film at end；
It is connected and is sheathed on the needle helmet of the exposed peripheral part of the twolip needle body other end with the other end of the needle stand (31),
The needle helmet is compressible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427038.1A CN109331295B (en) | 2018-11-27 | 2018-11-27 | Injection pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427038.1A CN109331295B (en) | 2018-11-27 | 2018-11-27 | Injection pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109331295A true CN109331295A (en) | 2019-02-15 |
| CN109331295B CN109331295B (en) | 2024-04-19 |
Family
ID=65318398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811427038.1A Active CN109331295B (en) | 2018-11-27 | 2018-11-27 | Injection pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109331295B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364311A (en) * | 2022-08-18 | 2022-11-22 | 武汉翼锋金属科技有限公司 | Metal finishing impression permeator |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012000873A1 (en) * | 2010-06-28 | 2012-01-05 | Sanofi-Aventis Deutschland Gmbh | Auto-injector |
| CN103118723A (en) * | 2010-08-19 | 2013-05-22 | 诺沃—诺迪斯克有限公司 | Medical auto-injection device for manual needle insertion having needle shield, damping mechanism and audible and tactile feedback |
| US20130131602A1 (en) * | 2010-02-22 | 2013-05-23 | Sanofi-Aventis Deutschland Gmbh | Auto-injector with needle shroud and needle protection cap |
| US20130218093A1 (en) * | 2010-08-27 | 2013-08-22 | Novo Nordisk A/S | Medical Injection Device |
| TWM461917U (en) * | 2013-03-18 | 2013-09-11 | Nextronics Engineering Corp | Push-pull self-locking connector |
| US20130267898A1 (en) * | 2010-12-21 | 2013-10-10 | Yannick Hourmand | Auto-injector |
| CN103476445A (en) * | 2011-02-18 | 2013-12-25 | 赛诺菲-安万特德国有限公司 | Auto-injector |
| CN104136057A (en) * | 2011-12-21 | 2014-11-05 | 赛诺菲-安万特德国有限公司 | Autoinjector |
| CN105688314A (en) * | 2016-03-29 | 2016-06-22 | 中国人民解放军军事医学科学院实验仪器厂 | Automatic injection device |
| CN106456899A (en) * | 2014-04-04 | 2017-02-22 | 诺和诺德股份有限公司 | Autoinjector having needle shield triggering |
| CN106456907A (en) * | 2014-06-27 | 2017-02-22 | 诺和诺德股份有限公司 | Autoinjector having needle shield triggering |
| CN106456889A (en) * | 2014-06-27 | 2017-02-22 | 诺和诺德股份有限公司 | Injection device having needle shield locking |
| CN106714876A (en) * | 2014-09-15 | 2017-05-24 | 诺和诺德股份有限公司 | Torsion spring driven injection device |
| WO2018011417A1 (en) * | 2016-07-15 | 2018-01-18 | Novo Nordisk A/S | Medical injector having safety feature preventing accidental expelling |
| US20180078713A1 (en) * | 2003-12-18 | 2018-03-22 | Tecpharma Licensing Ag | Auto-injector with active agent container latching |
| CN108025148A (en) * | 2015-09-14 | 2018-05-11 | 和谐医疗有限公司 | Injection device |
| CN207378104U (en) * | 2017-11-10 | 2018-05-18 | 重庆美亚美凯科技有限公司 | The overload protection of plastic gear |
| US20180236177A1 (en) * | 2006-12-26 | 2018-08-23 | Stat Medical Devices, Inc. | Pen needle tip |
| CN209734664U (en) * | 2018-11-27 | 2019-12-06 | 甘肃成纪生物药业有限公司 | Injection pen |
-
2018
- 2018-11-27 CN CN201811427038.1A patent/CN109331295B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180078713A1 (en) * | 2003-12-18 | 2018-03-22 | Tecpharma Licensing Ag | Auto-injector with active agent container latching |
| US20180236177A1 (en) * | 2006-12-26 | 2018-08-23 | Stat Medical Devices, Inc. | Pen needle tip |
| US20130131602A1 (en) * | 2010-02-22 | 2013-05-23 | Sanofi-Aventis Deutschland Gmbh | Auto-injector with needle shroud and needle protection cap |
| WO2012000873A1 (en) * | 2010-06-28 | 2012-01-05 | Sanofi-Aventis Deutschland Gmbh | Auto-injector |
| CN103118723A (en) * | 2010-08-19 | 2013-05-22 | 诺沃—诺迪斯克有限公司 | Medical auto-injection device for manual needle insertion having needle shield, damping mechanism and audible and tactile feedback |
| US20130218093A1 (en) * | 2010-08-27 | 2013-08-22 | Novo Nordisk A/S | Medical Injection Device |
| US20130267898A1 (en) * | 2010-12-21 | 2013-10-10 | Yannick Hourmand | Auto-injector |
| CN103476445A (en) * | 2011-02-18 | 2013-12-25 | 赛诺菲-安万特德国有限公司 | Auto-injector |
| CN104136057A (en) * | 2011-12-21 | 2014-11-05 | 赛诺菲-安万特德国有限公司 | Autoinjector |
| TWM461917U (en) * | 2013-03-18 | 2013-09-11 | Nextronics Engineering Corp | Push-pull self-locking connector |
| CN106456899A (en) * | 2014-04-04 | 2017-02-22 | 诺和诺德股份有限公司 | Autoinjector having needle shield triggering |
| CN106456907A (en) * | 2014-06-27 | 2017-02-22 | 诺和诺德股份有限公司 | Autoinjector having needle shield triggering |
| CN106456889A (en) * | 2014-06-27 | 2017-02-22 | 诺和诺德股份有限公司 | Injection device having needle shield locking |
| CN106714876A (en) * | 2014-09-15 | 2017-05-24 | 诺和诺德股份有限公司 | Torsion spring driven injection device |
| CN108025148A (en) * | 2015-09-14 | 2018-05-11 | 和谐医疗有限公司 | Injection device |
| CN105688314A (en) * | 2016-03-29 | 2016-06-22 | 中国人民解放军军事医学科学院实验仪器厂 | Automatic injection device |
| WO2018011417A1 (en) * | 2016-07-15 | 2018-01-18 | Novo Nordisk A/S | Medical injector having safety feature preventing accidental expelling |
| CN207378104U (en) * | 2017-11-10 | 2018-05-18 | 重庆美亚美凯科技有限公司 | The overload protection of plastic gear |
| CN209734664U (en) * | 2018-11-27 | 2019-12-06 | 甘肃成纪生物药业有限公司 | Injection pen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364311A (en) * | 2022-08-18 | 2022-11-22 | 武汉翼锋金属科技有限公司 | Metal finishing impression permeator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109331295B (en) | 2024-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0516473B1 (en) | Automatic injection devices | |
| US20190151549A1 (en) | Automatic drug delivery devices | |
| US6918889B1 (en) | Disposable injection device | |
| EP2531243B1 (en) | Medical needle safety device | |
| KR19990076918A (en) | Combination of Retractable Needle and Syringe | |
| JP2004516074A (en) | Automatic compounding, syringe | |
| CN106413777B (en) | Automatic injector | |
| JPH11511358A (en) | Prefilled drug solution injection ampule with retractable injection needle | |
| EP1507566A1 (en) | Injection device with automatically retractable needle | |
| BR112017022659B1 (en) | Medication delivery device with gas propellant | |
| JPH11505454A (en) | Improper use of retractable syringe | |
| MXPA06004718A (en) | Self-locking safety disposable syringe with needle protection after use. | |
| WO1998044971A1 (en) | Syringe with pneumatically retractable needle | |
| CN106132457B (en) | Drugs distribution apparatus | |
| JP2018536509A (en) | Self-injector with retractable needle | |
| CA2828906A1 (en) | Closure piece for a powder syringe, and powder syringe | |
| CA2835950A1 (en) | Modular gas-actuated retractable needle assembly | |
| JP2019511944A (en) | Delivery device | |
| CN109982733B (en) | Implant/medicament injection system based on protective shell | |
| CN109331295A (en) | A kind of injection pen | |
| JPH11505739A (en) | Pre-filled safety syringe | |
| CN111225701B (en) | Passive integrated safety device and injection device comprising same | |
| AU2001240916A1 (en) | Hypodermic syringe | |
| CN209734664U (en) | Injection pen | |
| CN206852873U (en) | A kind of cassette full-automatic injecting pen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |