CN109876243A - Cartridge syringe - Google Patents
Cartridge syringe Download PDFInfo
- Publication number
- CN109876243A CN109876243A CN201910248897.2A CN201910248897A CN109876243A CN 109876243 A CN109876243 A CN 109876243A CN 201910248897 A CN201910248897 A CN 201910248897A CN 109876243 A CN109876243 A CN 109876243A
- Authority
- CN
- China
- Prior art keywords
- end cap
- outer end
- injection needle
- cartridge syringe
- shell
- 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 claims abstract description 64
- 239000007924 injection Substances 0.000 claims abstract description 64
- 230000006698 induction Effects 0.000 claims description 31
- 239000011324 bead Substances 0.000 claims description 26
- 230000014759 maintenance of location Effects 0.000 claims description 26
- 230000009467 reduction Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003814 drug Substances 0.000 description 19
- 229940079593 drug Drugs 0.000 description 16
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 102000004877 Insulin Human genes 0.000 description 6
- 108090001061 Insulin Proteins 0.000 description 6
- 229940125396 insulin Drugs 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 206010012601 diabetes mellitus Diseases 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000520 microinjection Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000031662 Noncommunicable disease Diseases 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Cartridge syringe provided by the invention includes shell, interior end cap and pushes output unit, and shell has container chamber and is connected to the container entrance of container chamber axial direction first end；Inner end set has open-ended, and it is outer and block container entrance that interior end cap is removably sleeved on shell, open-ended to be connected to container entrance；It pushes output unit to be set in shell, the promotion output section of output unit is pushed to protrude into container chamber from the axial second end of container chamber；Cartridge syringe further includes outer end cap, and outer end is put on to be exported equipped with injection needle；In the axial direction of interior end cap, outer end cap is removably sleeved on outside interior end cap, and injection needle space is formed between outer end cap and interior end cap, and injection needle is spatially located at open-ended between injection needle outlet.Injection needle is open from the injection needle of outer end cap to be stretched out, to control the extension elongation of injection needle；Outer end cap is connected to the skin of patient, to control injection angles, cartridge syringe has fool proof effect, more humanized.
Description
Technical field
The present invention relates to injector technology fields, and in particular to a kind of cartridge syringe.
Background technique
Currently, diabetes have become the fourth-largest chronic noncommunicable disease after cardiovascular disease, cerebrovascular disease, cancer
Disease.And a kind of means as treating diabetes, injection of insulin have the characteristics that low side effect, significant in efficacy.
A kind of existing cartridge syringe includes the promotion output unit of shell and setting inside the shell, is had in shell along length
The container chamber for placing insulin container extended is spent, shell forms container entrance in the extension first end of container chamber, and outer
Shell forms in the extension second end of container chamber and pushes entrance.Pushing output unit includes motor, train of reduction gears, screw rod and connection
Impeller in screw rod end, under the drive of the motor, screw rod and positioned at screw rod end impeller can from push entrance into
Enter in container chamber.After insulin reservoir is placed into container chamber, end cap is sleeved on shell upper container inlet, insulin reservoir is then
It is fixed within shell, is subsequently mounted disposable aspiration needle component, the contact pin of needle component is inserted into insulin reservoir from end cap
On, the injection needle being reversed in needle component with contact pin then extends outwardly.Impeller pushes the piston in the middle part of insulin reservoir
Injection then can be achieved in body.
Existing this kind of cartridge syringe the problem is that, the injection needle of needle component is completely exposed, patient when acupuncture treatment
It is difficult to voluntarily hold the insertion of injection needle and the accuracy of injection angles, as patient's Medical Devices used in everyday, the medicine
The shortcoming hommization of object syringe.
Summary of the invention
More humane cartridge syringe is used the purpose of the present invention is to provide a kind of.
Cartridge syringe provided by the invention include shell, interior end cap and push output unit, shell have container chamber and
It is connected to the container entrance of container chamber axial direction first end；Inner end set have it is open-ended, interior end cap is removably sleeved on shell
Outside and container entrance is blocked, it is open-ended to be connected to container entrance；It pushes output unit to be set in shell, pushes output unit
Promotion output section protrude into container chamber from the axial second end of container chamber；Cartridge syringe further includes outer end cap, and outer end, which is put on, to be set
There is injection needle outlet；In the axial direction of interior end cap, outer end cap is removably sleeved on outside interior end cap, between outer end cap and interior end cap
Injection needle space is formed, injection needle is spatially located at open-ended between injection needle outlet.
By above scheme as it can be seen that adding outer end cap, outer end cap is sleeved on outside interior end cap, and shape between outer end cap and interior end cap
At injection needle space for placing needle component, the injection needle of needle component is open from the injection needle of outer end cap to be stretched out, outside
The extension elongation of the axially extending controlled injection syringe needle of end cap；When patient carries out drug injection, outer end puts on injection needle and opens
The outer peripheral surface of mouth is connected to the skin of patient, to control injection angles.Cartridge syringe has fool proof effect, more human nature
Change.
Further embodiment is that cartridge syringe further includes the first magnet and the first magnetic induction sensor；First magnet is set
It sets in outer end cap, the first magnetic induction sensor is arranged on the shell, and the first magnet is located at the induction of the first magnetic induction sensor
In range.
Therefore outer end cap must according to behind designated position, the first magnetic induction sensor could to the first magnet into
Row induction, after being connected to the switching circuit of syringe, patient could effectively press injection key, prevent patient's mistake from injecting.
Further embodiment is that inner end is put on equipped with the first buckling parts, and outer end is put on equipped with the second buckling parts；First fastens
Portion and the second buckling parts are fastened along the axial direction of interior end cap.
Therefore be detachably connected between interior end cap and outer end cap by click on fashion, it is easy to disassemble.
Further embodiment is that inner end is put on equipped with the first circumferential retention bead, and outer end is put on equipped with the second circumferential limit
Protrusion, the first circumferential retention bead and the second circumferential retention bead cooperate in the circumferential upper limit of interior end cap.
Therefore first the cooperation of circumferential retention bead and the second circumferential retention bead effectively prevent interior end cap and outer end
It produces relative rotation between set, improves mounting stability.
Further embodiment is that the first circumferential retention bead has the first guiding surface, and the second circumferential retention bead has
Second guiding surface, the first guiding surface and the second guiding surface favour the axial direction of interior end cap；First guiding surface and
Cooperation is limited between two guiding surfaces.
Therefore first contacting between guiding surface and the second guiding surface make between interior end cap and outer end cap
Axial interaction force is generated, and due to, using snapping connection, being dismantled in external end cap between interior end cap and outer end cap
When, it is only necessary to the outer end cap of twisting, while disengaging between the first buckling parts and the second buckling parts, edge between outer end cap and interior end cap
Axially opposing movement, to complete to dismantle, dismantlement work is more simple and fast.
Further embodiment is that outer end cap includes outer end cap fixing piece and outer end cap sliding part, and injection needle outlet setting exists
On outer end cap sliding part；Outer end cap fixing piece is removably sleeved on outside interior end cap, and outer end cap sliding part is slideably set in
Outside outer end cap fixing piece；Outer end cap sliding part can sliding axially between first position and the second postion along interior end cap, first
Position is relative to the second position far from shell.
Therefore outer end cap fixing piece is fixedly set in outside interior end cap, outer end cap sliding part can be solid relative to outer end cap
Determine part and be axially distant from interior end cap sliding, when outer end cap sliding part is located at first position, outer end set has axial maximum extension
Size, outer end cap blocks needle component from periphery completely at this time, to realize hidden needle effect, child is accidentally injured in prevention and treatment, and protects
Needle component.
Further embodiment is to be connected with elastic component between outer end cap fixing piece and outer end cap sliding part；Elastic component it is extensive
Multiple power keeps outer end cap sliding part mobile to first position.
Therefore therefore, at steady state, outer end cap sliding part is located at first position, i.e., to needle component
The position blocked completely from periphery, cartridge syringe stably keep hidden needle-shaped state.
Further embodiment is that cartridge syringe further includes the second magnet and the second magnetic induction sensor；Second magnet is set
It sets in outer end cap sliding part, the second magnet is arranged on the shell；First position is that the second magnet is located at the second magnetic induction sensor
Induction range in position, the second position be the second magnet be located at the position outside the induction range of the second magnetic induction sensor.
Therefore only after outer end cap is moved to the exposed parts arrival suitable dimension of the second position and injection needle, the
Two magnetic induction sensors could incude the second magnet, and after being connected to the switching circuit of syringe, patient could effectively be pressed
Pressure injection penetrates key, prevents patient's mistake from injecting.
Further embodiment is that output unit is pushed to include sequentially connected motor, train of reduction gears, screw component and push away
Moving part.
Therefore deceleration transmission is effectively realized in this setting, realizes the micro-injection of cartridge syringe.
Further embodiment is that cartridge syringe further includes needle component, and needle component includes needle body and is arranged in needle body
On interconnecting piece, needle body stretches out pin head and injection needle in the opposite sides of interconnecting piece respectively；Needle component is located at injection needle
In space, towards open-ended, injection needle stretches out except outer end cap pin head from injection needle outlet.
Detailed description of the invention
Fig. 1 is the structural exploded view at the first visual angle of cartridge syringe first embodiment of the present invention.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Fig. 3 is the structural exploded view at the second visual angle of cartridge syringe first embodiment of the present invention.
Fig. 4 is the cross-sectional view of the first working condition of cartridge syringe first embodiment of the present invention.
Fig. 5 is the enlarged drawing in Fig. 4 at B.
Fig. 6 is the enlarged drawing in Fig. 4 at C.
Fig. 7 is the cross-sectional view of the second working condition of cartridge syringe first embodiment of the present invention.
Fig. 8 is the cross-sectional view of the first working condition of cartridge syringe second embodiment of the present invention.
Fig. 9 is the structural exploded view of cartridge syringe second embodiment of the present invention China and foreign countries end cap.
Figure 10 is the cross-sectional view of the second working condition of cartridge syringe second embodiment of the present invention.
Specific embodiment
Cartridge syringe first embodiment
Referring to Fig. 1, Fig. 1 is the first structure exploded view of cartridge syringe first embodiment of the present invention.It is provided by the invention
Cartridge syringe includes shell 1, circuit board assemblies 2, pushes output unit 3, interior end cap 4, outer end cap 5 and removably make one
The needle component 6 that secondary property uses.
Shell 1 include mutually matched first half-shell body 11, the second half shell 12, middle bracket 13 and tube wall 14, first
Half shell 11 and the second half shell 12 lid merge forms accommodation space in the middle part of shell 1, and middle bracket 13 and tube wall 14 are respectively mounted
In the accommodation space that first half-shell body 11 and the second half shell 12 are mutually formed after lid closes.Above and below middle bracket 13
It is respectively formed top and places position and lower section placement position, be the container chamber 100 for holding medicine container 1000 in the middle part of tube wall 14.
Circuit board assemblies 2 include that pcb board 21 and the electric elements 22 on pcb board, circuit board assemblies 2 are placed on to be formed
It places in position top above 13 between middle part；Pushing output unit 3 includes sequentially connected motor 31, train of reduction gears
32, screw component 33 and impeller 34 (Fig. 4 shows), screw component 33 have certain development length, are formed in 13 between middle part
The screw rod 332 that position is used to place screw component 33 is placed in the lower section of lower section, and motor 31, train of reduction gears 32 are arranged at shell
In other spaces in 1 between tube wall 14 and middle bracket 13.
Motor 31 is stepper motor, and motor 31 is disposed adjacent with tube wall 14, and the output shaft of motor 31 is connected to reduction gearing
On the driving wheel of group 32, the driven wheel of train of reduction gears 32 and the feed screw nut 331 of screw component 33 are coaxially connected, feed screw nut
331 are sleeved on outside screw rod 332 together with the driven wheel of train of reduction gears 32, and impeller 34 (Fig. 4 shows) is then connected to screw rod 332
Extended end portion.Push output unit 3 can be real using the combination of motor 31, train of reduction gears 32, screw component 33 and impeller 34
Now effective micro-injection effect.Certainly, in other embodiments, push output unit that can use motor, train of reduction gears
With the combination of rack gear, the combination of motor, gear and rack gear can also be used, or using higher minitype cylinder of precision etc..
Shell 1 has a container entrance 101 for being connected to the axial first end of container chamber 100, and shell 1 also has and is connected to appearance
The promotion entrance 102 of the axial second end of device chamber 100, screw rod 332 and impeller 34 (Fig. 4 shows) enter from promotion entrance 102 to be held
Device chamber 100.
It is the enlarged drawing in Fig. 1 at A in conjunction with Fig. 2 and Fig. 3, Fig. 2, Fig. 3 is cartridge syringe first embodiment of the present invention
The second structural exploded view.Interior end cap 4 includes the first annular gear that annular peripheral wall 41 and is connected on annular 41 axial end of peripheral wall
Wall 42, the middle part of first annular retaining wall 42 form circular open-ended 420, and first annular retaining wall 42 is towards open-ended
There are multiple protrusions 421 being evenly arranged, protrusion 421 is convex along the axle center of the radial inward end cap 4 of interior end cap 4 on 420 surface
It rises, and the section of protrusion 421 is in up-side down triangle, has gap 422 between two adjacent protrusions 421, the profile in gap 422 is in
It is trapezoidal.
The junction of annular peripheral wall 41 and first annular retaining wall 42 is provided with circumferentially extending recess and along interior end cap 4
Notch 43, notch 43 with radially outward the first side opening and have and open-ended 420 towards identical second
Side opening forms one first circumferential retention bead 44 between two adjacent notches 43, and the first circumferential retention bead 44 is along interior
The circumferentially extending of end cap 4, and a first guiding surface 43a is all had at the extension both ends of the first circumferential retention bead 44, the
One guiding surface 43a is towards notch 43 and towards the axial direction of open-ended 420 directions.Notch 43 has interior sidewall surface, this is interior
There is one of fastening card slot 431 of the circumferentially extending along interior end cap 4, the section for fastening card slot 431 is C-shaped, fastens in side wall surface
Card slot 431 is the first buckling parts.There are snap fit tabs 45 on the inner wall of annular peripheral wall 41.
Outer end cap 5, which has, to be integrally formed and along axial sequentially connected first body 51 and the second body 52, the first body
51 first external diameter is greater than the second external diameter of the second body 52, and the first internal diameter of the first body 51 is greater than the second of the second body 52
Internal diameter, therefore connected between the first body 51 and the second body 52 stepped；First body 51 is in separate second body 52
Axial end portion setting there are two symmetrically arranged magnet place position 510, outer end cap 5 further include be connected to it is separate on the first body 51
Second annular retaining wall 53 of the axial end portion of the second body 52, the axial end face in the second annular retaining wall 53 outwardly are to be used for and people
The bearing surface 531 of body skin contact, the second annular retaining wall 53 form circular injection needle outlet 530 around place.
On the inner surface of outer end cap 5, the junction of the first body 51 and the second body 52 has symmetrical two second
Circumferential retention bead 54, the second circumferential retention bead 54 backwards to injection needle outlet 530 along axial projection, and the second circumferential limit convex
54 circumferentially extendings along outer end cap 5 are played, extends both ends and is respectively provided with one second guiding surface 54a, the second guiding surface 54a
Circumferential direction and injection needle outlet 530 backwards towards outer end cap 5.Second circumferential retention bead 54 is in the axle center towards outer end cap 5
Have on surface and fasten protrusion 55, the outer surface for fastening protrusion 55 is arc surface, fastens protrusion 55 i.e. the second buckling parts.
Cartridge syringe further includes needle component 6, and needle component 6 includes needle body 61 and the interconnecting piece being arranged on needle body 61
62, interconnecting piece 62 includes connecting plate 621 and the thread bush 622 stretched out from connecting plate 621, and the inner peripheral surface of thread bush 622 is equipped with
Internal screw thread (not shown), connecting plate 621 are sleeved on outside needle body 61, and needle body 61 is stretched respectively in the opposite sides of connecting plate 621
Pin head 611 and injection needle 612 out, pin head 611 are located in thread bush 622.
After first half-shell body 11 and the mutually assembly of the second half shell 12, shell 1 forms annular in the periphery of container entrance 101
Periphery wall 120, drug container 1000 from container entrance 101 be inserted into container chamber 100 after, the connection end of drug container 1000 then from
The axially open of annular profile wall 120 is extend out to outside shell 1.The outer peripheral surface of annular profile wall 120 has symmetrically arranged twice
Helicla flute 111, helicla flute 111 have lift angle, and in helicla flute 111, and the extension center of helicla flute 111 has snap fit tabs
112, an engaging position 113 is formed between the inner wall of 111 extending end of snap fit tabs 112 and helicla flute.
In conjunction with Fig. 4 and Fig. 5, Fig. 4 is the cross-sectional view of the first working condition of cartridge syringe first embodiment of the present invention, figure
5 be the enlarged drawing at B in Fig. 4.When carrying out the installation of drug container 1000, firstly, shell 1, interior end cap 4,5 and of outer end cap at this time
It is in non-installation condition between needle component 6, drug container 1000 is placed into container chamber 100 from container entrance 101, and medicine
The connection end of object container 1000 stretches out in outside annular profile wall 120, and drug container 1000 connects matching for the triangular shape on end
Protrusion 1003 is closed to be similarly positioned in outside annular profile wall 120.
Installation in then carrying out between end cap 4 and shell 1.Interior end cap 4 is sleeved on outside annular profile wall 120, in rotation
End cap 4 makes snap fit tabs 45 enter helicla flute 111, crosses snap fit tabs 112 and finally reaches engaging position 113, to realize
Detachable fastening between interior end cap 4 and shell 1, drug container 1000 is stretched out from open-ended 420 at this time, and cooperation thereon
Protrusion 1003 is located exactly in gap 422, and the two sides of fitting projection 1003 are abutted with a limit of protrusion 421.
Then needle component 6 is installed in drug container 1000.The thread bush 622 of needle component 6 is sleeved on drug appearance
Outside the connection end of device 1000, the external screw thread 1001 that the internal screw thread of thread bush 622 connect end with drug container 1000 cooperates,
While screwing needle component 6, pin head 611 gradually deeply and passes through sealing element 1002, finally reaches drug container 1000
Inside, and screw-threaded coupling is completed between final needle component 6 and drug container 1000.
The connection finally carried out between outer end cap 5 and interior end cap 4 is installed.Outer end cap 5 is directly covered and is closed onto interior end cap 4,
Symmetrically arranged two second circumferential retention beads 54 along outer end cap 5 axially into notch 43, and the second buckling parts 55 into
Enter to fasten and realize clamping in card slot 431, and the first circumferential retention bead 44 and the second circumferential retention bead 54 are in the week of interior end cap 4
Cooperate to upper limit, cooperates between the first guiding surface 43a and the second guiding surface 54a in the circumferential upper limit of interior end cap 4.
Injection needle 612 is extend out to except outer end cap 5 from injection needle outlet 530 at this time, and bearing surface 531 is located at injection needle
First 612 periphery, the extension elongation of the axially extending controlled injection syringe needle 612 of outer end cap 5；Drug injection is carried out in patient
When, the outer peripheral surface of injection needle opening is connected to the skin of patient in outer end cap 5, to control injection angles.Drug injection utensil
There is fool proof effect, it is more humanized.
In conjunction with Fig. 3 and Fig. 5, cartridge syringe further includes the first magnet 59 and the first magnetic induction sensor 58, in outer end cap 5
Symmetrically arranged two magnets are placed in position 510 and are placed with first magnet 59, and first magnetic induction sensor 58 is set
It sets on shell 1.Due to being clasped as circumferential symmetric design in outer end cap 5 and interior end cap 4, i.e., outer end cap 5 is rotated 180
It spends rear cover and closes the similarly achievable installation in interior end cap 4, therefore symmetrical two the first magnets 59 are set and can guarantee outer end cap 5
Installation site is reached, centainly has first magnet 59 to be located in the induction range of the first magnetic induction sensor 58, to make to infuse
After the switching circuit connection of emitter, patient could effectively press injection key, prevent patient's mistake from injecting.
When carrying out the disassembly between outer end cap 5 and interior end cap 4, it is only necessary to the outer end cap 5 of rotation.Rotate outer end cap 5
Afterwards, it is abutted between the first guiding surface 43a and the second guiding surface 54a and makes to generate in axial direction between outer end cap 5 and interior end cap 4
Interaction force, after interaction force is greater than fastening power between the first buckling parts and the second buckling parts, outer end cap 5 with it is interior
It is to complete disassembly between end cap 4, disassembly mode is simple and effective.
It is the enlarged drawing in Fig. 4 at C in conjunction with Fig. 4, Fig. 6 and Fig. 7, Fig. 6, Fig. 7 is cartridge syringe first of the present invention implementation
The cross-sectional view of the second working condition of example.The axial end of screw rod 332 has hinge ball 333, and the middle part of impeller 34 has flexural pivot
Position 340, hinge ball 333 is located in flexural pivot position 340, and motor 31 rotates train of reduction gears 32 after starting, to drive screw rod spiral shell
Mother 331 rotates, and then screw rod 332 is made to generate linear motion, and final impeller 34 pushes piston 1004, realizes injection.
Since screw rod 332 is elongate articles, it is easy to happen elastic bending, is connected between screw rod 332 and impeller 34 using flexural pivot
It connects and keeps stablizing cooperation between the piston 1004 of the promotion plane and drug container 1000 that can guarantee impeller 34, to guarantee to live
The accuracy of the injection volume of the amount of feeding and cartridge syringe of plug 1004.
Cartridge syringe second embodiment
In conjunction with Fig. 8 and Fig. 9, Fig. 8 is the cross-sectional view of the first working condition of cartridge syringe second embodiment of the present invention, Fig. 9
For the structural exploded view of cartridge syringe second embodiment of the present invention China and foreign countries end cap.Unlike a upper embodiment, this implementation
Example China and foreign countries end cap 7 includes outer end cap fixing piece 71, outer end cap sliding part 72 and elastic component 73, and 720 setting of injection needle outlet is outside
On end cap sliding part 72；Outer end cap fixing piece 71 is removably sleeved on outside interior end cap 4, and outer end cap sliding part 72 slideably covers
Outside loaded on outer end cap fixing piece 71.
Connection type between outer end cap fixing piece 71 and interior end cap 8 referring to upper embodiment China and foreign countries end cap 5 and interior end cap 4 it
Between connection type (as shown in Figure 3), i.e., outer end cap fixing piece 71 has the second circumferential retention bead 711, the second circumferential limit
The medial surface protrusion of protrusion 711 has fastening protrusion 713, fastens protrusion 713 and snaps fitted in the fastening card slot 811 in interior end cap 8.
Outer end cap fixing piece 71 has the first cylinder wall 712, and the periphery of the first cylinder wall 712, which is provided with, to be axially extended
The first spring-housing groove of twice 715 and twice limit card slot 716, the first spring-housing groove of twice 715 is in outer end cap fixing piece 71
Circumferential direction on be symmetrical arranged, twice limit card slot 716 is symmetrical arranged in the circumferential direction of outer end cap fixing piece 71, and solid in outer end cap
Determine part 71 and the extended end portion of limit card slot 716 is provided with postive stop baffle 717.On the lateral surface of second circumferential retention bead 711
It is provided with the twice guiding raised line 714 axially extended.
Outer end cap sliding part 72 has the second cylinder wall 721 and is connected to the ring at the first axis end of the second cylinder wall 721
Shape wall 722, surrounding for annular wall 722 are centrally formed circular injection needle outlet 720；The second cylinder wall 721 is in its second axial direction
It is provided with magnet installation position 728 on the end face at end, is provided on the inner wall of the second cylinder wall 721 along its axially extending twice
Second spring holding tank 725 and four guide grooves 724.Retention bead 726 is additionally provided on the inner wall of the second cylinder wall 721,
Retention bead 726 is being provided with guiding surface 727 backwards to the side of injection needle outlet 720.
Outer end cap sliding part 72 is sleeved on outside outer end cap fixing piece 71, and the first spring-housing groove 715 and second spring accommodate
Slot 725 forms complete spring accommodating chamber, and elastic component 73 is compression spring, and elastic component 73 is mounted on bullet along outer end cap sliding part 72
In spring accommodating chamber, and the both ends of elastic component 73 are connected to respectively on outer end cap fixing piece 71 and outer end cap sliding part 72；Limit convex
It plays 726 to be located in limit card slot 716, guiding raised line 714 is located in guide groove 724.
In conjunction with Figure 10, Figure 10 is the cross-sectional view of the second working condition of cartridge syringe second embodiment of the present invention.Outer end cap
Sliding part 72 can sliding axially between first position and the second postion along interior end cap 8, first position is relative to the second position
Far from shell 1.Cartridge syringe further includes the second magnet 79 and the second magnetic induction sensor 78；Second magnet 79 is arranged in outer end
In the magnet installation position 728 for covering sliding part 72, the second magnet 79 is arranged on shell 1；First position is that the second magnet 79 is located at
Position in the induction range of second magnetic induction sensor 78, the second position are that the second magnet 79 is located at the second magnetic induction sensor
Position outside 78 induction range.
Only when user pushes cartridge syringe, outer end cap 7 is made to be moved to the second position, and injection needle 812 is from injection needle
After outlet 720 extend out to suitable position, the second magnetic induction sensor 78 could incude the second magnet 79, make drug injection
After the switching circuit connection of device, patient could effectively press injection key, prevent patient's mistake from injecting.
Finally it is emphasized that the above description is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is right
For those skilled in the art, the present invention can have various change and change, all within the spirits and principles of the present invention,
Any modification, equivalent substitution, improvement and etc. done, should all be included in the protection scope of the present invention.
Claims (10)
1. cartridge syringe, including shell, interior end cap and promotion output unit, the shell have container chamber and are connected to described
The container entrance of container chamber axial direction first end；
Inner end set has open-ended, and it is outer and block the container and enter that the interior end cap is removably sleeved on the shell
Mouthful, it is described open-ended to be connected to the container entrance；
The promotion output unit is set in the shell, and the promotion output section for pushing output unit is from the container chamber
Axial second end protrude into the container chamber；
It is characterized by:
The cartridge syringe further includes outer end cap, and the outer end is put on to be exported equipped with injection needle；
In the axial direction of the interior end cap, the outer end cap is removably sleeved on outside the interior end cap, the outer end cap and institute
Formation injection needle space between interior end cap is stated, the injection needle is spatially located at the described open-ended and injection needle and exports it
Between.
2. cartridge syringe according to claim 1, it is characterised in that:
The cartridge syringe further includes the first magnet and the first magnetic induction sensor；
On the set of the outer end, the first magnetic induction sensor setting is on the housing, described for the first magnet setting
First magnet is located in the induction range of first magnetic induction sensor.
3. cartridge syringe according to claim 1, it is characterised in that:
The inner end is put on equipped with the first buckling parts, and the outer end is put on equipped with the second buckling parts；First buckling parts and institute
The axial direction that the second buckling parts is stated along the interior end cap fastens.
4. cartridge syringe according to claim 3, it is characterised in that:
The inner end is put on equipped with the first circumferential retention bead, and the outer end is put on equipped with the second circumferential retention bead, and described the
One circumferential retention bead and the second circumferential retention bead cooperate in the circumferential upper limit of the interior end cap.
5. cartridge syringe according to claim 4, it is characterised in that:
Described first circumferential retention bead has the first guiding surface, and the described second circumferential retention bead has the second guiding oblique
Face, first guiding surface and second guiding surface favour the axial direction of the interior end cap；
Cooperation is limited between first guiding surface and second guiding surface.
6. cartridge syringe according to claim 1, it is characterised in that:
The outer end cap includes outer end cap fixing piece and outer end cap sliding part, and injection needle outlet setting is sliding in the outer end cap
On moving part；
The outer end cap fixing piece is removably sleeved on outside the interior end cap, and the outer end cap sliding part is slideably set in
Outside the outer end cap fixing piece；
The outer end cap sliding part can sliding axially between first position and the second postion along the interior end cap, described first
Position is relative to the second position far from the shell.
7. cartridge syringe according to claim 6, it is characterised in that:
Elastic component is connected between the outer end cap fixing piece and the outer end cap sliding part；
Outer end cap sliding part described in the resilient element urges is mobile to the first position.
8. cartridge syringe according to claim 6, it is characterised in that:
The cartridge syringe further includes the second magnet and the second magnetic induction sensor；
The second magnet setting is in the outer end cap sliding part, and the second magnet setting is on the housing；
The first position is that second magnet is located at the position in the induction range of second magnetic induction sensor, described
The second position is that second magnet is located at the position outside the induction range of second magnetic induction sensor.
9. cartridge syringe according to any one of claims 1 to 8, it is characterised in that:
The promotion output unit includes sequentially connected motor, train of reduction gears, screw component and impeller.
10. cartridge syringe according to any one of claims 1 to 8, it is characterised in that:
The cartridge syringe further includes needle component, and the needle component includes needle body and the connection that is arranged on the needle body
Portion, the needle body stretch out pin head and injection needle in the opposite sides of the interconnecting piece respectively；
The needle component is located in the injection needle space, and the interconnecting piece is fixedly connected with the interior end cap, the contact pin
Head protrudes into described open-ended, and the injection needle stretches out except the outer end cap from injection needle outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248897.2A CN109876243B (en) | 2019-03-29 | 2019-03-29 | Medicine injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248897.2A CN109876243B (en) | 2019-03-29 | 2019-03-29 | Medicine injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109876243A true CN109876243A (en) | 2019-06-14 |
| CN109876243B CN109876243B (en) | 2024-09-13 |
Family
ID=66935173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910248897.2A Active CN109876243B (en) | 2019-03-29 | 2019-03-29 | Medicine injector |
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| Country | Link |
|---|---|
| CN (1) | CN109876243B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538358A (en) * | 2019-09-12 | 2019-12-06 | 刘靖宇 | Medicine container for injection and prefilled medicine container for injection |
| CN113813462A (en) * | 2021-08-24 | 2021-12-21 | 浙江康德莱医疗器械股份有限公司 | Safe hemodialysis remaining needle |
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| CN106890382A (en) * | 2017-03-16 | 2017-06-27 | 珠海凯生医用科技有限公司 | Intelligent insulin injection pen |
| US20170274150A1 (en) * | 2014-09-30 | 2017-09-28 | Panasonic Healthcare Holdings Co., Ltd. | Pharmaceutical syringe unit, pharmaceutical injection device equipped with said unit, injection needle attachment and removal fixture, and storage case |
| US20180353699A1 (en) * | 2015-09-23 | 2018-12-13 | Sanofi-Aventis Deutschland Gmbh | A device for attachment to an injection device |
| CN109069758A (en) * | 2015-11-27 | 2018-12-21 | 赛诺菲-安万特德国有限公司 | Injection device with the protective cap for allowing electromagnetic field inducing |
| CN209900319U (en) * | 2019-03-29 | 2020-01-07 | 河南智慧医学研究院(有限合伙) | Medicine injector |
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| US20170274150A1 (en) * | 2014-09-30 | 2017-09-28 | Panasonic Healthcare Holdings Co., Ltd. | Pharmaceutical syringe unit, pharmaceutical injection device equipped with said unit, injection needle attachment and removal fixture, and storage case |
| US20180353699A1 (en) * | 2015-09-23 | 2018-12-13 | Sanofi-Aventis Deutschland Gmbh | A device for attachment to an injection device |
| CN109069758A (en) * | 2015-11-27 | 2018-12-21 | 赛诺菲-安万特德国有限公司 | Injection device with the protective cap for allowing electromagnetic field inducing |
| CN106890382A (en) * | 2017-03-16 | 2017-06-27 | 珠海凯生医用科技有限公司 | Intelligent insulin injection pen |
| CN209900319U (en) * | 2019-03-29 | 2020-01-07 | 河南智慧医学研究院(有限合伙) | Medicine injector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110538358A (en) * | 2019-09-12 | 2019-12-06 | 刘靖宇 | Medicine container for injection and prefilled medicine container for injection |
| CN113813462A (en) * | 2021-08-24 | 2021-12-21 | 浙江康德莱医疗器械股份有限公司 | Safe hemodialysis remaining needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109876243B (en) | 2024-09-13 |
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