CN104771813B - Disposable safe injection of insulin syringe needle - Google Patents
Disposable safe injection of insulin syringe needle Download PDFInfo
- Publication number
- CN104771813B CN104771813B CN201510208107.XA CN201510208107A CN104771813B CN 104771813 B CN104771813 B CN 104771813B CN 201510208107 A CN201510208107 A CN 201510208107A CN 104771813 B CN104771813 B CN 104771813B
- Authority
- CN
- China
- Prior art keywords
- main casing
- needle
- oversheath
- attic base
- injection
- 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.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (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)
- Environmental & Geological Engineering (AREA)
Abstract
Disposable safe injection of insulin syringe needle, including needle body, needle stand, main casing, oversheath and triggering pipe, be characterized in：Needle stand is fixedly connected with seat bar by attic base and constituted, attic base outer rim has the annexation for sliding positioning with main casing inner edge, attic base is set to be moved to the second position location from the first position location using novopen head axial thrust when injection needle is installed, pipe rear sleeve is triggered to be present on bar, front end is acted against on oversheath inner front end face, the 3rd location structure is provided between triggering pipe and seat bar, when the relative seat bar of triggering pipe is in three position locations, attic base is on the first position location with respect to main casing；When attic base is moved to the second position location in main casing from the first position location, triggering pipe releases the 3rd positioning and formed and is slidably connected with seat bar.The present invention will trigger the state relation that injection whether is got out with novopen and injection needle whether is unlocked after pipe positioning, improve the security used and convenience.
Description
Technical field
The present invention relates to medical injection of insulin instrument, more particularly to a kind of disposable safe insulin injection syringe
Head.This injection needle and novopen support the use available for automedication or other people be administered, wherein novopen is repeated
Use, and injection needle is disposable syringe needle.
Background technology
Diabetes are a kind of metabolic diseases being characterized with hyperglycaemia, the method that radical cure is there is no at present, but give patient note
Penetrating insulin can effective symptom management.
The injection tool of insulin is varied, wherein injection of insulin syringe needle of the present invention is a kind of and insulin
The matching used injection tool of pen, wherein novopen carry the insulin fluid medicine of ormal weight, reusable, and inject
Syringe needle is a kind of disposable syringe needle with safety guard.
Chinese patent CN101563124A discloses a kind of entitled《Pin protection dress with distally and proximally pin protector
Put》Application for a patent for invention；United States Patent (USP) US2011/0288491A1 discloses a kind of entitled《Safety needle assembly》Invention
Patent application.The two patent applications all refer to injection of insulin syringe needle, and its basic structure includes：
1. needle body and the needle stand of fixed needle body for insulin injection；
2. for the main casing being connected with novopen；
3. for protecting needle body to use the sleeve pipe of front and rear safety；
4. the spring for moving sleeve pipe；
5. for protecting the overall oversheath of injection needle, the oversheath does not embody in the accompanying drawing of above-mentioned two pieces patent,
But it can see in actual product, and it is indispensable under normal circumstances.
In above-mentioned existing injection needle, needle body is fixed on needle stand, and the injection portion of needle body is stretched out from needle stand front end, needle body
Linkage section stretches out from needle stand rear end, but needle stand is to be fixedly connected with relation with respect to main casing, and the advantage of this design is structure letter
It is single, and the present invention is improved from another angle to its annexation, to embody security and the convenience that injection needle is used.
The content of the invention
In view of the problem of above prior art is pointed out, the present invention provides a kind of disposable safe injection of insulin syringe needle, its
Purpose is to solve the security and convenience issue in above-mentioned prior art use.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of disposable safe injection of insulin syringe needle, bag
Include：
Needle body, the needle body have one forward extreme direction extension injection portion, one backward extreme direction extension linkage section
And a canned paragraph being located between injection portion and linkage section；
Needle stand, the needle stand is used to fix needle body, and the canned paragraph of the needle body is fixed on needle stand, and the injection portion of needle body is from pin
Seat front end is stretched out, and the linkage section of needle body stretches out from needle stand rear end；
Main casing, the main casing is that tube structure, in the assembled condition needle stand and needle body are located at main casing（3）It is interior, main casing
The rear end of body is used to connect novopen；
Triggering pipe, the agent structure of the triggering pipe is body, before triggering pipe is located at main casing under using preceding confined state
End is interior and extends to outside front end, the injection portion for protecting needle body；
Its innovation is：
The needle stand is made up of attic base and seat bar, and seat bar is located at attic base front end and is fixedly connected with attic base；The outer rim of attic base
It is engaged with the inner edge of main casing, correspondence attic base outer rim is axially spaced on main casing inner edge to be provided with the first position location and the
Two position locations, during the injection needle is installed to the novopen, are produced using novopen head to needle stand
Raw axial thrust forces attic base to be moved axially forward in main casing from the first position location to the second position location, so that
Make to form the annexation for sliding positioning between needle stand and main casing；The outer rim of attic base and main casing on the first position location
Inner edge is coordinated by the first location structure, and the outer rim of attic base and the inner edge of main casing pass through second on the second position location
Location structure is coordinated；First location structure is using concavo-convex location structure, elastic positioning structure or friction positioning knot
Structure；Second location structure using concavo-convex location structure, elastic positioning structure, friction location structure, clamping lock location structure or
Person's end face is against location structure；
Triggering pipe main casing relatively is spacing provided with what is moved forward, and the rear sleeve of triggering pipe is mounted in the seat bar of needle stand
On；Trigger side between pipe body and seat bar and be provided with recess, opposite side is provided with convex portion, and recess, which is stuck in formation the 3rd on convex portion, to be determined
Position, when the relative seat bar of triggering pipe is in three position locations, the attic base on needle stand is in the first position location with respect to main casing
On；When attic base is moved axially forward to the second position location in main casing from the first position location, triggering pipe and seat bar
The 3rd positioning is released, and formation is slidably connected.
Relevant content in above-mentioned technical proposal is explained as follows：
" preceding " in the present invention, described 1. " front end ", " forward ", " front and rear ", " front portion ", " front ", " front end face "
Refer to the signified direction of disposable safe type injection of insulin syringe needle injection portion needle point of the present invention." rear end ", " front and rear ",
" backward ", " rear " in " rear portion ", " rear " refers to the opposite direction of " preceding ".
2. in such scheme, the main casing is externally provided with oversheath, the oversheath is tube-in-tube structure, is using preceding assembling
Oversheath is sleeved on the outside of main casing under state, for protecting the injection needle overall；The triggering pipe main casing relatively is set
There is the spacing front end by triggering pipe of forward movement close or act against and formed on the inner front end face of oversheath.
3. in such scheme, the concavo-convex location structure is by being located at the chase in attic base outer marginal circumference direction and being located at main casing
Convex tendon on internal edge is cooperatively formed.
4. in such scheme, the elastic positioning structure is cooperatively formed by elastic pearl pin with depression, elastic pearl pin and depression
In both, one is located in attic base outer rim, and another one is located on main casing inner edge.
5. in such scheme, the friction location structure is formed by attic base outer rim with main casing inner edge frictional fit.
6. in such scheme, the clamping lock location structure is by attic base outer rim and front and rear side end face and institute on main casing inner edge
If neck cooperatively form.
7. in such scheme, the end face is against anterior end surface of the location structure by attic base outer rim and main casing inner edge
Inner face is against cooperatively forming.
8. in such scheme, the main casing cylinder lateral wall is provided with bayonet socket, bayonet socket is axially located second in main casing to be determined
Position position on, the bayonet socket be one run through main casing inside and outside wall between through hole, to should through hole on oversheath sleeve lining
Provided with fixture block, fixture block is caught in bayonet socket and stretched into main casing under oversheath suit main casing state, makes oversheath and main casing
Locking connection；When attic base is moved to the second position location from the first position location, the fixture block on attic base outer rim jack-up oversheath,
Oversheath is deformed, ultimately result in fixture block and threaded off with bayonet socket, so as to realize that oversheath is unlocked with main casing, in this case
Allow to extract oversheath.
9. in such scheme, unlocked to be conducive to oversheath to be threaded off with main casing, can oversheath sleeve lining
On vertically provided with inwardly projecting rib, after oversheath is sleeved on the outside of main casing, oversheath inwall and main casing outer wall
Between leave the gap deformed for oversheath.
10. in such scheme, the fixture block on oversheath departs from the bayonet socket on main casing for convenience, can be in main casing
Bayonet socket at the chute provided with the extension of extreme direction forward, to be conducive to fixture block to depart from bayonet socket.
Design principle and effect of the present invention are：Needed and the matching used disposable peace of novopen the present invention relates to one kind
Holotype injection of insulin syringe needle, its technical concept is：
First, provided with the 3rd location structure formed by concaveconvex structure between triggering pipe body and seat bar, solve to use
The integrity problem of protection of pipe needle body injection portion is triggered in preceding and use, it is ensured that triggering pipe is noted in using preceding and use to needle body
The security implementation for penetrating section is effectively protected；
Second, by for fixing between the needle stand of needle body and main casing the annexation for being designed to slide positioning, that is, pacifying
During dress injection needle using novopen head the axial thrust of needle stand is forced attic base on needle stand from the first position location to
Before be moved to behind the second position location stop so that the attic base in information and needle stand that whether injection needle is installed in place is in master
Shift position in housing is associated；
3rd, the information whether injection needle is installed in place is managed by shift position of the attic base in main casing with triggering
Whether unlock and associate after positioning, most whether unlocked after the positioning of triggering pipe with whether novopen and injection needle prepare at last
The state relation injected well, so as to substantially increase security and convenience that injection needle is used.
In a word, the present invention rationally make use of the axial thrust for installing injection needle and position triggering pipe is reached automatic unlocking
Purpose.Its technical concept is ingenious, design rationally, with prominent substantive distinguishing features and significant technological progress, fully
Embody security and convenience that injection needle is used.
Brief description of the drawings
Accompanying drawing 1 is the stereogram of disposable safe injection of insulin syringe needle of the embodiment of the present invention；
Accompanying drawing 2 is the three-dimensional exploded view of disposable safe injection of insulin syringe needle of the embodiment of the present invention；
Accompanying drawing 3 is the stereogram of tail-hood of the embodiment of the present invention；
Accompanying drawing 4 is the stereogram of needle stand of the embodiment of the present invention and needle body；
Accompanying drawing 5 is stereogram of the main casing of the embodiment of the present invention with partial cutaway；
Accompanying drawing 6 is the stereogram of anterior cannula of the embodiment of the present invention；
Accompanying drawing 7 is stereogram of the anterior cannula of the embodiment of the present invention with partial cutaway；
Accompanying drawing 8 is the stereogram that the embodiment of the present invention triggers pipe；
Accompanying drawing 9 is that the embodiment of the present invention triggers stereogram of the pipe with partial cutaway；
Accompanying drawing 10 is stereogram of the oversheath of the embodiment of the present invention with partial cutaway；
Accompanying drawing 11 regards for the end face of disposable safe injection of insulin syringe needle of the embodiment of the present invention with A-A cross-sectional indicators
Figure；
Accompanying drawing 12 regards for the end face of disposable safe injection of insulin syringe needle of the embodiment of the present invention with B-B cross-sectional indicators
Figure；
Accompanying drawing 13 regards for the end face of disposable safe injection of insulin syringe needle of the embodiment of the present invention with C-C cross-sectional indicators
Figure；
Accompanying drawing 14 is that the embodiment of the present invention uses the A-A sectional views under preceding state；
Accompanying drawing 15 is that the embodiment of the present invention uses the C-C sectional views under preceding state；
Accompanying drawing 16 is the embodiment of the present invention using concealing the A-A sectional views after tail-hood under preceding state；
Accompanying drawing 17 is A-A sectional views when novopen to be screwed in injection needle of the embodiment of the present invention using the first stage；
Accompanying drawing 18 is the A-A section views when embodiment of the present invention continues to screw in injection needle using second stage novopen
Figure；
Accompanying drawing 19 is the A-A section views when embodiment of the present invention continues to screw in injection needle using phase III novopen
Figure；
Accompanying drawing 20 is the B-B section views when embodiment of the present invention continues to screw in injection needle using phase III novopen
Figure；
Accompanying drawing 21 is the C-C section views when embodiment of the present invention continues to screw in injection needle using fourth stage novopen
Figure；
Accompanying drawing 22 is the A-A section views when embodiment of the present invention continues to screw in injection needle using fourth stage novopen
Figure；
Accompanying drawing 23 is the B-B section views when embodiment of the present invention continues to screw in injection needle using fourth stage novopen
Figure；
Accompanying drawing 24 is the stereogram when embodiment of the present invention extracts oversheath using the 5th stage；
Accompanying drawing 25 is the A-A sectional views when embodiment of the present invention extracts oversheath using the 5th stage；
Accompanying drawing 26 is the A-A sectional views when embodiment of the present invention starts to be pierced into human body skin using the 6th stage needle body；
Accompanying drawing 27 is the A-A sectional views when embodiment of the present invention is pierced into human body skin using the 7th stage needle body；
Accompanying drawing 28 is when the embodiment of the present invention fully penetrates human body skin and insulin injection using the 8th stage needle body
A-A sectional views；
A-A when accompanying drawing 29 is after the embodiment of the present invention is extracted using the complete insulin needle body of the 9th stage injection from skin
Sectional view；
B-B when accompanying drawing 30 is after the embodiment of the present invention is extracted using the complete insulin needle body of the 9th stage injection from skin
Sectional view；
Accompanying drawing 31 is the A-A sectional views when embodiment of the present invention screws out injection needle using the tenth stage novopen；
Accompanying drawing 32 is that the embodiment of the present invention uses the A-A sectional views under rear state；
Accompanying drawing 33 is that anterior cannula of the present invention is the stereogram for showing " chuck "；
Accompanying drawing 34 is that present invention triggering pipe is the stereogram for showing " gear platform "；
The B-B sectional views that accompanying drawing 35 coordinates for display " chuck " with " gear platform "；
Accompanying drawing 36 is the stereogram of another embodiment of the present invention injection of insulin syringe needle；
Accompanying drawing 37 is the stereogram of needle stand in another embodiment of the present invention；
Accompanying drawing 38 is that another embodiment of the present invention uses the A-A sectional views under preceding state；
Accompanying drawing 39 is that another embodiment of the present invention uses the B-B sectional views under preceding state；
Accompanying drawing 40 is the A-A sectional views in another embodiment of the present invention use during excision oversheath；
Accompanying drawing 41 is the B-B sectional views in another embodiment of the present invention use during excision oversheath；
Accompanying drawing 42 is that another embodiment of the present invention uses the A-A sectional views under rear state；
Accompanying drawing 43 is that another embodiment of the present invention uses the B-B sectional views under rear state.
In the figures above：
1. tail-hood；11. haptic element hook；12. inclined-plane；13. block；14. wedge angle trip；15. block；16. foreleg；17. step down
Hole；
2. needle stand；21. chase；22. convex portion；23. attic base；24. a bar；25. slot to make way；
3. main casing；31. the first trip step；32. evade groove；33. convex tendon；34. neck；35. the second trip step；
36. anti-back slot；37. the 3rd trip step；38. bayonet socket；39. chute；
4. anterior cannula；41. elastic latch；42. it is raised；43. elastic empennage；44. inner face；45. inclined plane；46. chuck；
5. triggering pipe；51. recess；52. plug；53. keep off platform；
6. needle body；
7. spring；
8. oversheath；81. fixture block；82. rib.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment 1：Disposable safe injection of insulin syringe needle（The protection of band forward tip and the protection of rear end needle point）
As Figure 1-10 shows, the injection needle by needle body 6, needle stand 2, main casing 3, oversheath 8, tail-hood 1, anterior cannula 4, touch
Send out pipe 5 and spring 7（See Fig. 2）.
Each component structural of the present embodiment disposable safe injection of insulin syringe needle is described in turn below：
1. needle body 6
The needle body 6, which is one, is used for insulin injection pipe pin, and the needle body 6 has an injection that extreme direction extends forward
Section, one the linkage section of extreme direction extension and one are located at canned paragraph between injection portion and linkage section backward.
2. needle stand 2
The needle stand 2 is used to fix needle body 6（See Fig. 4）, the canned paragraph of needle body 6 is fixed on needle stand 2, the injection of needle body 6
Section is stretched out from the front end of needle stand 2, and the linkage section of needle body 6 stretches out from the rear end of needle stand 2.Needle stand 2 is made up of attic base 23 and seat bar 24, seat bar
24 are located at the front end of attic base 23 and are fixedly connected with attic base 23, and seat bar 24 is provided with convex portion 22, and attic base 23 is provided with two slots to make way
25, the outer marginal circumference direction of attic base 23 is provided with chase 21.
3. main casing 3
The main casing 3 be for accommodate except oversheath 8 and in addition to other parts housings（See Fig. 5）.Main casing 3 is cylinder
Structure, needle stand 2 and the grade of needle body 6 parts are located in main casing 3 in the assembled condition.Provided with the in the middle part of the cylinder inboard wall of main casing 3
One trip step 31, the cylinder inboard wall front end of main casing 3 is provided with the second trip step 35, and the cylinder inboard wall rear portion of main casing 3 is provided with the
Three trip steps 37, the cylinder inboard wall of main casing 3 front portion is provided with anti-back slot 36, and the cylinder inboard wall front portion of main casing 3, which is additionally provided with, evades groove
32, the inner edge of main casing 3 is provided with convex tendon 33 and neck 34, and convex tendon 33 is located at the first position location of the axial direction of main casing 3, neck 34
The second position location positioned at the axial direction of main casing 3, if on the basis of the rear end of main casing 3, behind the first position location to main casing 3
The distance at end is less than the distance of the second position location to the rear end of main casing 3.The cylinder lateral wall of main casing 3 is provided with bayonet socket 38, bayonet socket
38 are axially located on the second position location in main casing 3, and the bayonet socket 38 is a through hole run through between the inside and outside wall of main casing 3,
Chute 39 provided with the extension of extreme direction forward at bayonet socket 38（To be conducive to fixture block 81 to depart from bayonet socket 38）.The rear end of main casing 3
For connecting novopen, its attachment structure can use thread connecting mode, it would however also be possible to employ plug connected mode, can be with
Using plug rotation snap fit etc..In the present embodiment, thread connecting mode is shown in Fig. 5 main casings 3.
4. oversheath 8
The oversheath 8 is used to protect the injection needle overall（See Figure 10）.The oversheath 8 is tube-in-tube structure, is made
The outside of main casing 3 is sleeved on oversheath 8 under preceding confined state.The sleeve lining of oversheath 8 is provided with fixture block 81, and fixture block 81 is in place
The bayonet socket 38 on the correspondence cylinder lateral wall of main casing 3 is put, fixture block 81 is caught in bayonet socket 38 under the suit state of main casing 3 of oversheath 8
And stretch into main casing 3, oversheath 8 is locked with main casing 3 and be connected.Vertically provided with inside on the sleeve lining of oversheath 8
Prominent rib 82, after oversheath 8 is sleeved on the outside of main casing 3, confession is left between the inwall of oversheath 8 and the outer wall of main casing 3
The gap that oversheath 8 deforms.
5. tail-hood 1
The tail-hood 1 is used for the linkage section for protecting needle body 6（See Fig. 3）.Tail-hood 1 is by a block 15 and two 16 groups of forelegs
Be end cap or ring bodies into, block 15, the center of block 15 provided with only for the linkage section of needle body 6 it is interspersed allow pin hole 17, allow pin hole
17 axis and the diameter parallel of main casing 3, two forelegs 16 are fixedly connected on the front end of block 15, and using allow the axis of pin hole 17 as
Reference symmetry arranges that the inner side of each foreleg 16 is provided with inclined-plane 12 on root position, is provided with and extends internally on medium position
Block 13, on terminal position be provided with haptic element hook 11；The outside of each foreleg 16 is provided with wedge angle trip 14 on medium position.
6. anterior cannula 4
The anterior cannula 4 is used to protect the injection portion using rear needle body 6（See Fig. 6 and Fig. 7）.The agent structure of anterior cannula 4
For body, the leading inside of anterior cannula 4 is provided with inner face 44；The rear end of anterior cannula 4 is provided with the He of elastic latch 41 extended back
The elastic empennage 43 extended back, elastic latch 41 is circumferentially staggeredly arranged with elastic empennage 43 in anterior cannula 4；In anterior cannula 4
Provided with the projection 42 stretched out on the outside of portion, projection 42 is corresponding in the circumferential position of anterior cannula 4 with elastic latch 41, and projection 42 leans on bullet
Property the side of trip 41 be provided with inclined plane 45.
7. trigger pipe 5
The triggering pipe 5 is used to protect the injection portion using preceding needle body 6（See Fig. 8 and Fig. 9）.Trigger the agent structure of pipe 5
For body, the rear end of triggering pipe 5 is provided with two plugs 52 extended back, and plug 52 is provided with barb, the triggering body of pipe 5 and set
In recess 51.
8. spring 7
The spring 7 is used to push anterior cannula 4 and tail-hood 1.
It is described as solving structure, annexation and the position relationship required for present invention problem below：
1. architectural feature
Provided with the 3rd location structure formed by concaveconvex structure between the triggering body of pipe 5 and seat bar 24.I.e. in triggering pipe 5
Side is provided with recess 51 between body and seat bar 24, and opposite side is provided with convex portion 22, and recess 51, which is stuck in formation the 3rd on convex portion 22, to be determined
Position.
In a word, the architectural feature solves the reliability for solving that the injection portion of needle body 6 is protected using triggering pipe 5 in preceding and use
Problem, it is ensured that triggering pipe 5 is effectively protected in using preceding and use to the security implementation of the injection portion of needle body 6.
2. annexation feature
It will be designed to slide the annexation positioned between the needle stand 2 of needle body 6 and main casing 3 for fixing.I.e. on needle stand 2
The outer rim of attic base 23 is engaged with the inner edge of main casing 3, and correspondingly the outer rim of attic base 23 is axially spaced on the inner edge of main casing 3 is provided with
First position location and the second position location, during the injection needle is installed to the novopen, utilize pancreas islet
The axial thrust that plain nib portion is produced to needle stand 2 forces attic base 23 to be moved axially forward from the first position location in main casing 3
Move to the second position location, so that forming the annexation for sliding positioning between needle stand 2 and main casing 3.
The outer rim of attic base 23 and the inner edge of main casing 3 are coordinated by the first location structure on the first position location,
The outer rim of attic base 23 and the inner edge of main casing 3 are coordinated by the second location structure on the second position location.Described first
Location structure is concavo-convex location structure, and the concavo-convex location structure is specific by being located at the chase 21 in the outer marginal circumference direction of attic base 23 with setting
Convex tendon 33 on the inner edge of main casing 3 is cooperatively formed.Second location structure is clamping lock location structure, the clamping lock location structure
It is specific to be cooperatively formed by the outer rim of attic base 23 and front and rear side end face with neck 34 set on the inner edge of main casing 3.
In a word, the annexation feature purpose will install injection needle when using novopen head to needle stand 2
Axial thrust forces the attic base 23 on needle stand 2 to move forward to stopping behind the second position location from the first position location, so that will
The information whether injection needle is installed in place is associated with shift position of the attic base 23 in main casing 3 on needle stand 2.
3. position relationship feature
Correspondence position relation is set up into 3rd position location and the first position location.When triggering pipe 5 is in respect to a bar 24
During three position locations, the attic base 23 on needle stand 2 is on the first position location with respect to main casing 3；When attic base 23 is in main casing 3
It is interior from the first position location move axially forward to the second position location when, triggering pipe 5 and seat bar 24 release the 3rd and positioned, and
Formation is slidably connected.
In a word, shifting of the information that whether injection needle is installed in place by the position relationship feature by attic base in main casing
Whether whether dynamic position associates with being unlocked after triggering pipe positioning, most unlocked and novopen and note after the positioning of triggering pipe at last
The state relation whether syringe needle gets out injection is penetrated, so as to substantially increase security and facility that injection needle is used
Property.
The present embodiment disposable safe injection of insulin syringe needle is in the annexation using each parts under preceding confined state
And position relationship is described as follows：
As illustrated in figures 14-16, under using preceding confined state, oversheath 8 is sleeved on the outside of main casing 3, oversheath 8
Fixture block 81 is caught in the bayonet socket 38 of main casing 3 and stretched into main casing 3, oversheath 8 is locked with main casing 3 and is connected；Needle stand 2 and pin
Body 6 is located in main casing 3, and the attic base 23 on needle stand 2 is in the first position location in main casing 3, at the first position location seat of honour
The chase 21 in the outer marginal circumference direction of disk 23 cooperatively forms concavo-convex location structure with the convex tendon 33 on the inner edge of main casing 3（See Figure 15）；
Tail-hood 1 is located in the rear end of main casing 3, and the block 15 on tail-hood 1 is located at the linkage section that the rear of attic base 23 is used to protect needle body 6（See
Figure 14 and Figure 15）, two forelegs 16 on tail-hood 1 extend forwards through two slots to make way 25 on attic base 23（See Figure 14 and figure
15）；The anterior cannula 4 is located in main casing 3, and the elastic latch 41 in anterior cannula 4 is stuck in the first trip step on main casing 3
On 31, limitation anterior cannula 4 travels forward with respect to main casing 3（See Figure 16）, while the haptic element hook 11 on 1 two forelegs 16 of tail-hood is hooked
In the elastic latch 41 of anterior cannula 4（See Figure 14）；The triggering pipe 5 is located in the front end of main casing 3 and extended to outside front end, uses
In the injection portion of protection needle body 6（See Figure 14）, the rear sleeve of triggering pipe 5 is on the seat bar 24 of needle stand 2, the rear portion of triggering pipe 5
In anterior cannula 4, the front end of triggering pipe 5 is close or acts against on the inner front end face of oversheath 8, the recess on triggering pipe 5
51 are stuck in formation positioning on the convex portion 22 of a bar 24（See Figure 15 and Figure 16）；Described one end of spring 7 is resisted against 1 two forelegs of tail-hood
On 16 block 13, the other end is resisted against on the inner face 44 of anterior cannula 4（See Figure 14）.
The use process description of the present embodiment disposable safe injection of insulin syringe needle is as follows：
First stage：
Figure 17 represents the state of first stage.As can be seen from Figure 17, in this case, user is written by insulin
Portion screws in injection needle described in the present embodiment.The head of novopen promotes tail-hood 1 to move forward, and the arrow in Figure 17 represents pancreas
The thrust that island element nib portion is produced, while the haptic element hook 11 of tail-hood 1 is by the jack-up of inclined plane 45 in the projection 42 of anterior cannula 4.
Second stage：
Figure 18 represents the state of second stage.As can be seen from Figure 18, in this case, novopen continues to screw in note
Syringe needle is penetrated, the haptic element hook 11 of tail-hood 1 crosses the projection 42 of anterior cannula 4, while the elasticity in the compressing of inclined-plane 12 anterior cannula 4 of tail-hood 1
Trip 41 curves inwardly.
Phase III：
Figure 19 and Figure 20 represent the state of phase III.In this case, novopen continues to screw in injection needle, elasticity
Trip 41 continues to curve inwardly, and finally forces the trip step 31 of elastic latch 41 and first to break off relations and fall into and evades groove 32, releases
It is spacing that anterior cannula 4 travels forward in main casing 3, and now anterior cannula 4 is moved forward under the promotion of spring 7, until convex
42 are played to be intercepted by haptic element hook 11 and stop mobile and the progress that travels forward to anterior cannula 4 is spacing（See Figure 19）.Can be with from Figure 20
Find out, in this case, the fixture block 81 on oversheath 8 is caught in the bayonet socket 38 of main casing 3 and stretched into main casing 3, on needle stand 2
Attic base 23 is still in the first position location, and tail-hood 1 contacts the attic base 23 on needle stand 2 gradually.
Fourth stage：
Figure 21, Figure 22 and Figure 23 represent the state of fourth stage.In this case, novopen continues to screw in injection needle
Block 15 on head, tail-hood 1 against needle stand 2 attic base 23 and promote attic base 23 to move forward to second from the first position location to determine
Position position（See Figure 21）, the outer rim of attic base 23 and front and rear side end face are caught in the neck on the inner edge of main casing 3 on the second position location
Clamping lock location structure is cooperatively formed in 34, attic base 23 is locked on the second position location, can neither continued to move to forward, also not
It can be moved rearwards by.In this case, because triggering pipe 5 front end is acted against on the inner front end face of oversheath 8, when needle stand 2 forward
When mobile, the positioning between the recess 51 on convex portion 22 and triggering pipe 5 on needle stand 2 is unlocked（See Figure 22）.In this case,
Fixture block 81 on the outer rim jack-up oversheath 8 of attic base 23, makes fixture block 81 be threaded off with bayonet socket 38, causes oversheath 8 to be solved with main casing 3
Lock, allows to extract oversheath 8 in this case（See Figure 23）.
5th stage：
Figure 25 and Figure 26 represent the state in the 5th stage.In this case, oversheath 8 is extractd with hand.
6th stage：
Figure 26 represents the state in the 6th stage.In this case, by triggering pipe 5 and contact human skin, needle body 6 starts thorn
Enter human body skin.When the front end and contact human skin for triggering pipe 5, triggering pipe 5 is moved rearwards by, and now triggers inserting on pipe 5
Block 13 on first 52 jack-up tail-hood 1, forces the haptic element hook 11 of tail-hood 1 to be separated gradually with the projection 42 of anterior cannula 4.
7th stage：
Figure 27 represents the state in the 7th stage.In this case, triggering pipe 5 continue to be moved rearwards by, until haptic element hook 11 with
Projection 42 be kept completely separate after under the promotion of spring 7 anterior cannula 4 move forward, and stretch out before the front end of main casing 3, anterior cannula 4
End face is hampered by human body skin, with the triggering front end face of pipe 5 it is concordant and together with move.
8th stage：
Figure 28 represents the state in the 8th stage.In this case, needle body 6 completely into start after human body skin inject pancreas islet
Element.
9th stage：
Figure 29 and Figure 30 represent the state in the 9th stage.In this case, the injection needle is extracted from human body skin, this
When anterior cannula 4 front end of main casing 3 is released by spring 7, until the projection 42 in anterior cannula 4 is by the second trip platform on main casing 3
Rank 35 intercepts and stops forward extending out, and now anterior cannula 4 is used for protecting the injection portion of needle body 6（See Figure 29）.In this case, it is preceding
The elastic empennage 43 of sleeve pipe 4 is caught in form that anterior cannula 4 is moved rearwards by the anti-back slot 36 of main casing 3 spacing after stretching, prevent
Anterior cannula 4 retracts（See Figure 30）.
Tenth stage：
Figure 31 represents the state in the tenth stage.In this case, novopen is screwed out into injection needle, tail-hood 1 is in spring 7
Be moved rearwards by under promotion, at the same two on tail-hood 1 block 13 clamp triggering pipe 5 on plug 52, and drive triggering pipe 5 to
After move.
Use rear state：
Figure 32 represents to use rear state.In this case, as novopen is constantly screwed out, triggering pipe 5 continues to be moved back by
It is dynamic to stop until the front end of seat bar 24 on needle stand 2 is low by the triggering inner front end face of pipe 5.Then, the wedge angle trip 14 on tail-hood 1
The 3rd trip step 37 for falling into main casing 3 forms the spacing of the forward movement of tail-hood 1, and triggers the barb and two of the plug 52 of pipe 5
Individual block 13 coordinates, and is moved rearwards by for limiting tail-hood 1 in the rear end of main casing 3, and now tail-hood 1 is used for protecting the company of needle body 6
Section is connect, while preventing the injection needle from being used by secondary.
Each parts knot in disposable safe type injection of insulin syringe needle of the present invention is can be seen that from above example
Cooperation between structure realizes that the relation of function is as follows with it：
1. under using preceding state, there is following relationship：
（1）The fixture block 81 of oversheath 8 coordinates with the bayonet socket 38 of main casing 3, the lock for realizing oversheath 8 and main casing 3
It is fixed；
（2）The chase 21 of needle stand 2 coordinates with the convex tendon 33 of main casing 3, the positioning for realizing needle stand 2 and main casing 3（The
One positioning）；
（3）The convex portion 22 of needle stand 2 coordinates with triggering the recess 51 of pipe 5, the positioning for realizing triggering pipe 5 and needle stand 2；
（4）The elastic latch 41 of anterior cannula 4 and the first trip step 31 of main casing 3 coordinate, for realizing that anterior cannula 4 exists
What is travelled forward in main casing 3 is spacing；
（5）The elastic latch 41 of anterior cannula 4 coordinates with the haptic element hook 11 of tail-hood 1, for realizing tail-hood 1 with respect to anterior cannula 4
That moves backward is spacing；
（6）Cooperation between the inner face 44 of spring 7, the block 13 of tail-hood 1 and anterior cannula 4, wherein, the one end of spring 7 is supported
Lean against on the block 13 of tail-hood 1, the other end is resisted against the inner face 44 of anterior cannula 4, for realizing tail-hood 1, anterior cannula 4 and spring
Connection and positioning between 7.
2. under state in use, there is following relationship：
（1）The inclined-plane 12 of tail-hood 1 coordinates with the elastic latch 41 of anterior cannula 4, for releasing anterior cannula 4 in main casing 3
What is travelled forward is spacing.Specifically：In use, as tail-hood 1 is moved forward, the compressing elastic latch 41 of inclined-plane 12 is inwardly curved
Song, finally forces elastic latch 41 to be broken off relations with the first trip step 31, releases the limit that anterior cannula 4 travels forward in main casing 3
Position；
（2）The haptic element hook 11 of tail-hood 1 coordinates with the projection 42 of anterior cannula 4, for realizing the progress that travelled forward to anterior cannula 4
It is spacing.Specifically：In use, as novopen constantly screws in injection needle, tail-hood 1 is moved forward, and haptic element hook 11 is convex
42 inclined-plane jack-up are played, projection 42 is crossed afterwards, and after the unhook of the trip step 31 of elastic latch 41 and first, haptic element hook 11 is caught on
The progress that travels forward of raised 42 pairs of anterior cannulas 4 is spacing（Projection 42 is intercepted in travelling forward by haptic element hook 11）；
（3）The attic base 23 of needle stand 2 coordinates with the neck 34 of main casing 3, the positioning for realizing needle stand 2 and main casing 3（The
Two positioning）；
（4）The elastic latch 41 of anterior cannula 4 and the groove 32 of evading of main casing 3 coordinate, for avoiding 41 pairs of bullets of elastic latch
The interference of spring 7.Specifically：In use, elastic latch 41, which crosses to fall into after the first trip step 31 of main casing 3, evades groove 32
In be interference in order to avoid elastic latch 41 to spring 7（Elastic latch 41 is avoided to encounter the formation interference of spring 7）；
（5）The block 15 of tail-hood 1 coordinates with the attic base 23 of needle stand 2, for realizing running fix.Specifically：In use,
As tail-hood 1 is moved forward, block 15 contacts attic base 23 gradually, and promotes attic base 23 to shake off above-mentioned first positioning, continues forward
It is mobile, it can not be moved again until falling into after the second positioning；
（6）Cooperation between the bayonet socket 38 of the attic base 23 of needle stand 2, the fixture block 81 of oversheath 8 and main casing 3, for that will be
It is no to allow to extract the state relation whether oversheath 8 gets out injection with novopen and injection needle.Specifically：Make
In, when the attic base 23 on needle stand 2 falls into the neck 34 on main casing 3, first, show that injection needle is formally installed to pancreas
Island element nib portion；Secondly, the fixture block 81 on the outer rim jack-up oversheath 8 of attic base 23 makes oversheath 8 deform, finally led
The fixture block 81 on oversheath 8 is caused to be threaded off with the bayonet socket 38 on main casing 3, so that the unblock of oversheath 8 and main casing 3 is realized, this
When can extract oversheath 8；3rd, because triggering pipe 5 front end is resisted against on the inner face of oversheath 8, when needle stand 2 is moved forward
When, the positioning between the recess 51 on convex portion 22 and triggering pipe 5 on needle stand 2 is unlocked, and shows that triggering pipe 5 has been enter into and can touched
The state of hair；
（7）The block 13 for triggering the plug 52 and tail-hood 1 of pipe 5 coordinates, for releasing the spacing of the forward movement of anterior cannula 4.
Specifically：When the front end and contact human skin for triggering pipe 5, triggering pipe 5 is moved rearwards by, and now triggers the plug 52 on pipe 5
Block 13 on jack-up tail-hood 1, forces the haptic element hook 11 of tail-hood 1 to be separated gradually with the projection 42 of anterior cannula 4, until being kept completely separate
Anterior cannula 4 is moved forward in the presence of spring 7 afterwards, and stretches out the front end of main casing 3, and the front end face of anterior cannula 4 is hampered by human body
Skin, with the triggering front end face of pipe 5 it is concordant and together with move, start insulin injection after pin is completely into human body skin.
3. there is following relationship under state after use：
（1）The projection 42 of anterior cannula 4 and the second trip step 35 of main casing 3 coordinate, for realizing anterior cannula 4 from main casing
Body 3 is outwardly directed spacing（Prevent anterior cannula 4 from being skidded off from main casing 3）；
（2）The elastic empennage 43 of anterior cannula 4 coordinates with the anti-back slot 36 of main casing 3, for realizing anterior cannula 4 from main casing
3 inwardly retract it is spacing（Prevent anterior cannula 4 from being retracted from main casing 3）；
（3）3rd trip step 37 of the wedge angle trip 14 of tail-hood 1 and main casing 3 coordinates, for preventing tail-hood 1 in main casing
Moved forward under external force in 3, prevent syringe needle is secondary from using.
Embodiment 2：Disposable safe injection of insulin syringe needle（Band forward tip protection, is protected without rear end needle point）
As shown in figure 36, the injection needle by needle body 6, needle stand 2, main casing 3, oversheath 8, anterior cannula 4, triggering pipe 5 with
And spring 7.
After it understanding of the injection of insulin syringe needle of embodiment 1 completely, embodiment 2 is only carried before band compared with Example 1
Needle point protection structure is held, without rear end needle point protection structure.Specifically, exist in terms of structure design following different：
First, embodiment 2 eliminates the tail-hood 1 in embodiment 1；
Second, two forelegs 16 in the tail-hood 1 of embodiment 1 are transplanted on the needle stand 2 of embodiment 1 by embodiment 2, see Figure 37 institutes
Show.Embodiment 2 remains block 13 and haptic element hook 11 set on foreleg 16.Embodiment 2 eliminates point set on foreleg 16
Angle trip 14.
3rd, embodiment 2 is due to eliminating wedge angle trip 14 set on foreleg 16, so correspondence eliminates main casing 3
Cylinder inboard wall rear portion is provided with the 3rd trip step 37.
4th, embodiment 2 is compared with Example 1 because the position of the foreleg 16 under using preceding confined state is changed
（It is more forward than origin-location to having passed past the projection 42 of anterior cannula 4）, so correspondence eliminates the inclined plane 45 of raised 42 side.
Remaining structure of injection of insulin syringe needle described in embodiment 2 is identical with embodiment 1, for this reason of saving space
Repeated description is no longer carried out, those skilled in the art should be easily understood that embodiment 2 after understanding embodiment 1 completely.
The use process of the injection of insulin syringe needle of embodiment 2 is summarized as follows：
As shown in figures 38 and 39, under using preceding confined state, oversheath 8 is sleeved on the outside of main casing 3, oversheath 8
Fixture block 81 be caught in the bayonet socket 38 of main casing 3 and stretch into main casing 3, lock oversheath 8 and main casing 3 and be connected；The He of needle stand 2
Needle body 6 is located in main casing 3, and the attic base 23 on needle stand 2 is in the first position location in main casing 3, on the first position location
The chase 21 in the outer marginal circumference direction of attic base 23 cooperatively forms concavo-convex location structure, attic base 23 with the convex tendon 33 on the inner edge of main casing 3
On two forelegs 16 extending forward extend forwards；The anterior cannula 4 is located in main casing 3, the elastic latch 41 in anterior cannula 4
It is stuck on the first trip step 31 on main casing 3, limitation anterior cannula 4 travels forward with respect to main casing 3；The triggering pipe 5
In in the front end of main casing 3 and extending to outside front end, the injection portion for protecting needle body 6, triggering pipe 5 with respect to main casing 3 be provided with to
Preceding movement it is spacing, triggering pipe 5 rear sleeve mounted in needle stand 2 seat bar 24 on, triggering pipe 5 rear portion be located at anterior cannula 4 in, touch
Send out pipe 5 to be on the 3rd position location, the front end of triggering pipe 5 is close or acts against on the inner front end face of oversheath 8, triggering pipe
Recess 51 on 5, which is stuck on the convex portion 22 of a bar 24, forms positioning, now, and attic base 23 on needle stand 2 is in the with respect to main casing 3
On one position location；Described one end of spring 7 is resisted against on the block 13 of 2 two forelegs 16 of needle stand, and the other end is resisted against anterior cannula 4
Inner face 44 on.
As shown in Figure 40 and 41, in use, when novopen head is screwed in injection needle described in the present embodiment by user
During head, the head of novopen promotes attic base 23 to move forward, and the compressing elastic latch 41 of inclined-plane 12 of the inner side of foreleg 16 is inwardly curved
Song, finally forces the trip step 31 of elastic latch 41 and first to break off relations and fall into and evades groove 32, releases anterior cannula 4 in main casing 3
What is inside travelled forward is spacing, and now anterior cannula 4 is moved forward under the promotion of spring 7, until projection 42 is intercepted by haptic element hook 11
And stopping is mobile and the progress that travelled forward to anterior cannula 4 is spacing；At the same time, attic base 23 is moved forward to from the first position location
Second position location, the outer rim of attic base 23 and front and rear side end face are caught in the neck 34 on the inner edge of main casing 3 on the second position location
In cooperatively form clamping lock location structure, attic base 23 is locked on the second position location, can neither be continued to move to forward, can not
It is moved rearwards by.In this case, because triggering pipe 5 front end is acted against on the inner front end face of oversheath 8, when needle stand 2 is to reach
When dynamic, the 3rd positioning between the recess 51 on convex portion 22 and triggering pipe 5 on needle stand 2 is unlocked, and now triggers pipe 5 and seat bar
24 formation are slidably connected.Meanwhile, in this case, the fixture block 81 on the outer rim jack-up oversheath 8 of attic base 23 makes fixture block 81 and bayonet socket
38 are threaded off, and cause oversheath 8 to be unlocked with main casing 3, and oversheath 8 is extractd in this case.Then, by triggering pipe 5 and human body skin
Skin is contacted, and needle body 6 starts to be pierced into human body skin, and triggering pipe 5 is moved rearwards by, and now triggers the jack-up foreleg 16 of plug 52 on pipe 5
On block 13, force the haptic element hook 11 of foreleg 16 to be separated gradually with the projection 42 of anterior cannula 4, in spring after being kept completely separate
Anterior cannula 4 is moved forward under 7 promotion, and stretches out the front end of main casing 3, and the front end face of anterior cannula 4 is hampered by human body skin, with touching
Hair pipe 5 front end face is concordant and moves together, and insulin injection is started after pin is completely into human body skin.
As shown in Figure 42 and 43, when extracting the injection needle from human body skin after use, anterior cannula 4 is pushed away by spring 7
Go out the front end of main casing 3, until the projection 42 in anterior cannula 4 is intercepted by the second trip step 35 on main casing 3 and stop forward
Stretch out, now anterior cannula 4 is used for protecting the injection portion of needle body 6；The elastic empennage 43 of anterior cannula 4 is caught in main casing after stretching simultaneously
What formation anterior cannula 4 was moved rearwards by 3 anti-back slot 36 is spacing, prevents anterior cannula 4 from retracting, finally from the novopen head
Remove the injection needle.
Relevant content and change in above example are described as follows：
, with the exception of this can be with 1. in both examples above, first location structure uses concavo-convex location structure
Replaced using elastic positioning structure or friction location structure, can also obtain same or analogous technique effect, this is ability
Field technique personnel are intelligible.Theoretically the first location structure should use the location structure of non-locked property, because making
Be in the first position location with the preceding outer rim of attic base 23 and the inner edge of main casing 3, and in use the outer rim of attic base 23 and the inner edge of main casing 3 it
Between need to slide axially.
The elastic positioning structure is cooperatively formed by elastic pearl pin with depression, and in both elastic pearl pin and depression, one is set
In the outer rim of attic base 23, another one is located on the inner edge of main casing 3.
The friction location structure is formed by the outer rim of attic base 23 with the inner edge frictional fit of main casing 3.
2. in both examples above, the clamping lock location structure that second location structure is used can be adopted with the exception of this
Replaced with elastic positioning structure, friction location structure or end face against location structure, can also obtain same or analogous skill
Art effect, this be the skilled addressee will appreciate that.Theoretically the second location structure can be using non-locked property
Location structure, it would however also be possible to employ the location structure of locked property.Elastic positioning structure, friction location structure or end face are against calmly
Bit architecture should belong to the location structure of non-locked property, and in above example, by the outer rim of attic base 23 and front and rear side end face and master
The clamping lock location structure that set neck 34 is cooperatively formed on the inner edge of housing 3 should belong to the location structure of locked property.But
In this clamping lock location structure, gap is there is when the width of neck 34 is more than 23 thickness of attic base, when this gap is big to one
Determine degree attic base 23 just can slidably reciprocate in neck 34, so as to change into the location structure of non-locked property.
The end face against location structure by the anterior end surface of the outer rim of attic base 23 and the inner face of the inner edge of main casing 3 against with
Close and formed.
3. in both examples above, the bayonet socket 38 is axially located on the second position location in main casing 3, is actually blocked
As long as the position of mouth 38 can obtain same or analogous technology on the second position location or near the second position location
Effect.It is described nearby to refer to using the second position location as 1 point or more rearward on the front of basic point.It is such in the present invention
Position relationship sets to meet particular kind of relationship, and this particular kind of relationship is：When attic base 23 is moved from the first position location
During to the second position location, the fixture block 81 on the outer rim jack-up oversheath 8 of attic base 23 makes oversheath 8 deform, ultimately results in card
Whether block 81 is threaded off with bayonet socket 38, so as to realize that oversheath 8 is unlocked with main casing 3, most allow to extract oversheath 8 and pancreas islet at last
Whether plain pen and injection needle get out the state relation of injection.
4. in both examples above, the triggering pipe 5 is spacing by triggering pipe 5 provided with what is moved forward with respect to main casing 3
Front end close to or act against and formed on the inner front end face of oversheath 8.In order to realize spacing the going back to the triggering forward movement of pipe 5
Other structures form can be used, such as, referring to shown in accompanying drawing 33- Figure 35, the gear platform 53 of triggering pipe 5 is acted against before anterior cannula 4
Triggering pipe 5 is formed in chuck 46 on portion's inner face 44 spacing provided with what is moved forward with respect to main casing 3.
5. both examples above is an example in order to illustrate technical solution of the present invention and provide, from background of the present invention
From the point of view of technology introduction and the technical issues that need to address and goal of the invention, needle stand 2, main casing 3, the and of oversheath 8 are related generally to
Pipe 5 and its structure and annexation between them are triggered, is associated less with tail-hood 1, anterior cannula 4 and spring 7.In other words
Say, tail-hood 1, anterior cannula 4 and spring 7 belong to inessential structure for the present invention, and them can be allowed to occur some changes
Change, such as, save the tail-hood 1 for protecting the linkage section of needle body 2；Apply aspects of the present inventions to background technology introduction
In Chinese patent CN101563124A；Apply aspects of the present inventions to United States Patent (USP) US2011/0288491A1 medium
Deng.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (5)
1. a kind of disposable safe injection of insulin syringe needle, including：
Needle body（6）, the needle body（6）With one forward extreme direction extension injection portion, one backward extreme direction extension connection
Section and a canned paragraph being located between injection portion and linkage section；
Needle stand（2）, the needle stand（2）For fixing needle body（6）, the needle body（6）Canned paragraph be fixed on needle stand（2）On, needle body
（6）Injection portion from needle stand（2）Front end is stretched out, needle body（6）Linkage section from needle stand（2）Rear end is stretched out；
Main casing（3）, the main casing（3）For tube structure, needle stand in the assembled condition（2）And needle body（6）Positioned at main casing（3）
It is interior, main casing（3）Rear end be used for connect novopen；
Triggering pipe（5）, the triggering pipe（5）Agent structure be body, using triggering pipe under preceding confined state（5）Positioned at main casing
Body（3）In front end and extend to outside front end, for protecting needle body（6）Injection portion；
It is characterized in that：
The needle stand（2）By attic base（23）With seat bar（24）Composition, seat bar（24）Positioned at attic base（23）Front end and and attic base（23）
It is fixedly connected；Attic base（23）Outer rim and main casing（3）Inner edge be engaged, correspondence attic base（23）Outer rim is in main casing（3）It is interior
It is axially spaced on edge to be provided with the first position location and the second position location, it is installed to the novopen in the injection needle
During, using novopen head to needle stand（2）The axial thrust of generation forces attic base（23）In main casing（3）It is interior from
One position location is moved axially forward to the second position location, so that needle stand（2）With main casing（3）Between formed slide it is fixed
The annexation of position；The attic base on the first position location（23）Outer rim and main casing（3）Inner edge pass through the first location structure
Coordinated, the attic base on the second position location（23）Outer rim and main casing（3）Inner edge pass through the second location structure carry out
Coordinate；First location structure is using concavo-convex location structure, elastic positioning structure or friction location structure；Described second determines
Bit architecture uses concavo-convex location structure, elastic positioning structure, friction location structure, clamping lock location structure or end face against positioning
Structure；
The concavo-convex location structure is by being located at attic base（23）The chase in outer marginal circumference direction（21）With being located at main casing（3）On inner edge
Convex tendon（33）Cooperatively form；The elastic positioning structure is cooperatively formed by elastic pearl pin with depression, elastic pearl pin and depression two
In person, one is located at attic base（23）In outer rim, another one is located at main casing（3）On inner edge；The friction location structure is by attic base
（23）Outer rim and main casing（3）Inner edge frictional fit is formed；The clamping lock location structure is by attic base（23）Outer rim and front and rear side
Face and main casing（3）Set neck on inner edge（34）Cooperatively form；The end face is against location structure by attic base（23）Outer rim
Anterior end surface and main casing（3）The inner face of inner edge is against cooperatively forming；
The triggering pipe（5）With respect to main casing（3）Provided with the spacing of forward movement, triggering pipe（5）Rear sleeve be mounted in needle stand（2）
Seat bar（24）On；Triggering pipe（5）Body and seat bar（24）Between side be provided with recess（51）, opposite side is provided with convex portion（22）,
Recess（51）It is stuck in convex portion（22）It is upper to form the 3rd positioning, when triggering pipe（5）With respect to seat bar（24）During in three position locations,
Needle stand（2）On attic base（23）With respect to main casing（3）On the first position location；Work as attic base（23）In main casing（3）It is interior from
When first position location is moved axially forward to the second position location, triggering pipe（5）With seat bar（24）The 3rd positioning is released, and
Formation is slidably connected.
2. injection needle according to claim 1, it is characterised in that：The main casing（3）It is externally provided with oversheath（8）, should
Oversheath（8）For tube-in-tube structure, oversheath under preceding confined state is being used（8）It is sleeved on main casing（3）Outside, for protecting
State injection needle overall；The triggering pipe（5）With respect to main casing（3）It is spacing by triggering pipe provided with forward movement（5）Front end
Approach or act against oversheath（8）Inner front end face on formed.
3. injection needle according to claim 2, it is characterised in that：The main casing（3）Cylinder lateral wall is provided with bayonet socket
（38）, bayonet socket（38）In main casing（3）The second position location of correspondence arrangement, the bayonet socket on axial direction（38）Run through main casing for one
（3）Through hole between inside and outside wall, to should through hole in oversheath（8）Sleeve lining is provided with fixture block（81）, in oversheath（8）Set
Fill main casing（3）Fixture block under state（81）It is caught in bayonet socket（38）And stretch into main casing（3）It is interior, make oversheath（8）With main casing（3）
Locking connection；Work as attic base（23）When being moved to the second position location from the first position location, attic base（23）Outer rim jack-up oversheath
（8）On fixture block（81）, make oversheath（8）Deform, ultimately result in fixture block（81）With bayonet socket（38）Thread off, so as to realize outer
Sheath（8）With main casing（3）Unblock, allows to extract oversheath in this case（8）.
4. injection needle according to claim 3, it is characterised in that：The oversheath（8）Sleeve lining on vertically
Provided with inwardly projecting rib（82）, work as oversheath（8）It is sleeved on main casing（3）Behind outside, oversheath（8）Inwall and main casing
（3）Left between outer wall and supply oversheath（8）The gap deformed.
5. injection needle according to claim 3, it is characterised in that：The main casing（3）Bayonet socket（38）Place be provided with to
The chute of preceding extreme direction extension（39）, to be conducive to fixture block（81）With bayonet socket（38）Depart from.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510208107.XA CN104771813B (en) | 2015-04-28 | 2015-04-28 | Disposable safe injection of insulin syringe needle |
| PCT/CN2016/078193 WO2016173383A1 (en) | 2015-04-28 | 2016-03-31 | Disposable secure insulin injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510208107.XA CN104771813B (en) | 2015-04-28 | 2015-04-28 | Disposable safe injection of insulin syringe needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104771813A CN104771813A (en) | 2015-07-15 |
| CN104771813B true CN104771813B (en) | 2017-08-22 |
Family
ID=53613780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510208107.XA Active CN104771813B (en) | 2015-04-28 | 2015-04-28 | Disposable safe injection of insulin syringe needle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104771813B (en) |
| WO (1) | WO2016173383A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771814B (en) * | 2015-04-28 | 2017-11-21 | 苏州施莱医疗器械有限公司 | Disposable safe type injection of insulin syringe needle |
| CN104771813B (en) * | 2015-04-28 | 2017-08-22 | 苏州施莱医疗器械有限公司 | Disposable safe injection of insulin syringe needle |
| CA3008658A1 (en) * | 2015-12-15 | 2017-06-22 | Iinjec Technologies Inc. / Les Technologies Iinjec Inc. | Syringes with retractable needle |
| CN106389123B (en) * | 2016-10-21 | 2019-01-15 | 浙江瑞邦智能装备股份有限公司 | A kind of novel injector |
| CN107469188B (en) * | 2017-08-03 | 2023-04-18 | 安徽迈菲思医疗器械有限公司 | Safety needle |
| CN107823761B (en) * | 2017-12-08 | 2023-08-18 | 宁波美生医疗器材有限公司 | Needle for safety insulin pen |
| CN108543169B (en) * | 2018-05-16 | 2023-12-01 | 普昂(杭州)医疗科技股份有限公司 | Safety insulin pen needle |
| CN108992745B (en) * | 2018-06-29 | 2020-11-03 | 苏州沙力医疗器械有限公司 | Rotary locking type safety insulin injection needle |
| CN109496158B (en) * | 2018-07-24 | 2021-09-21 | 江苏采纳医疗科技有限公司 | Disposable anti-needle-punching insulin injection pen needle and anti-needle-punching method |
| WO2021168781A1 (en) * | 2020-02-28 | 2021-09-02 | 江苏采纳医疗科技有限公司 | Safety insulin pen needle |
| CN111658896B (en) * | 2020-06-18 | 2020-12-15 | 普昂(杭州)医疗科技有限公司 | Automatic trigger type needle head protection device and insulin pen needle |
| CN112155565B (en) * | 2020-10-12 | 2021-07-23 | 普昂(杭州)医疗科技股份有限公司 | Needle protection structure and needle device |
| WO2022078237A1 (en) * | 2020-10-12 | 2022-04-21 | 普昂(杭州)医疗科技股份有限公司 | Needle protection structure and protection method, and needle device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2619583Y (en) * | 2003-04-24 | 2004-06-09 | 施国平 | Self-locking disposable safety automatic blood taking needle |
| CN101594899A (en) * | 2006-09-06 | 2009-12-02 | 特克法马许可公司 | Has the needle protection that blocks the protective position of living |
| CN101945680A (en) * | 2008-01-15 | 2011-01-12 | 贝克顿·迪金森公司 | Pen needle assembly with needle insertion mechanism |
| CN104307072A (en) * | 2014-10-29 | 2015-01-28 | 杭州普昂医疗科技有限公司 | Safety insulin pen |
| CN205007385U (en) * | 2015-04-28 | 2016-02-03 | 苏州施莱医疗器械有限公司 | Disposable safe insulin injection needle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013544168A (en) * | 2010-11-29 | 2013-12-12 | サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Automatic delivery device with trigger mechanism |
| CN104771815B (en) * | 2015-04-28 | 2017-05-03 | 苏州施莱医疗器械有限公司 | Insulin syringe needle with needle tip protection function |
| CN204995930U (en) * | 2015-04-28 | 2016-01-27 | 苏州施莱医疗器械有限公司 | Disposable safe type insulin injection needle |
| CN104771813B (en) * | 2015-04-28 | 2017-08-22 | 苏州施莱医疗器械有限公司 | Disposable safe injection of insulin syringe needle |
| CN104771814B (en) * | 2015-04-28 | 2017-11-21 | 苏州施莱医疗器械有限公司 | Disposable safe type injection of insulin syringe needle |
| CN204995929U (en) * | 2015-04-28 | 2016-01-27 | 苏州施莱医疗器械有限公司 | Take insulin injection needle of needle point protection |
-
2015
- 2015-04-28 CN CN201510208107.XA patent/CN104771813B/en active Active
-
2016
- 2016-03-31 WO PCT/CN2016/078193 patent/WO2016173383A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2619583Y (en) * | 2003-04-24 | 2004-06-09 | 施国平 | Self-locking disposable safety automatic blood taking needle |
| CN101594899A (en) * | 2006-09-06 | 2009-12-02 | 特克法马许可公司 | Has the needle protection that blocks the protective position of living |
| CN101945680A (en) * | 2008-01-15 | 2011-01-12 | 贝克顿·迪金森公司 | Pen needle assembly with needle insertion mechanism |
| CN104307072A (en) * | 2014-10-29 | 2015-01-28 | 杭州普昂医疗科技有限公司 | Safety insulin pen |
| CN205007385U (en) * | 2015-04-28 | 2016-02-03 | 苏州施莱医疗器械有限公司 | Disposable safe insulin injection needle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016173383A1 (en) | 2016-11-03 |
| CN104771813A (en) | 2015-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104771813B (en) | Disposable safe injection of insulin syringe needle | |
| CN104771814B (en) | Disposable safe type injection of insulin syringe needle | |
| CN104771815B (en) | Insulin syringe needle with needle tip protection function | |
| KR102603821B1 (en) | Rotation lock safe insulin injection needle | |
| CN204219535U (en) | Pen needle assemblies | |
| CN104159630B (en) | Pin withdraws equipment | |
| CN109316650B (en) | Improved rotary safety insulin syringe needle | |
| JP2008526340A (en) | Safety device for medical needle | |
| CN108367126B (en) | Safety needle | |
| CN204017014U (en) | Safe type venous retaining needle | |
| WO2020001656A1 (en) | Rotary locking-type safe insulin injection needle | |
| CN204995929U (en) | Take insulin injection needle of needle point protection | |
| CN101690833A (en) | Safety injector with automatically retractable needle | |
| TWI573605B (en) | Safety needle | |
| CN201701572U (en) | Medical safety syringe | |
| CN205007385U (en) | Disposable safe insulin injection needle | |
| CN101869733A (en) | Safety syringe | |
| CN204995930U (en) | Disposable safe type insulin injection needle | |
| CN108371738B (en) | Safety insulin injection needle | |
| CN202822342U (en) | Safe injector | |
| CN208541639U (en) | A kind of safty pin | |
| CN213852528U (en) | Safety disposable syringe | |
| CN2701454Y (en) | Safety self-destructing syringe | |
| CN202822327U (en) | Safe transfusion needle | |
| CN202859789U (en) | Medical safety syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180814 Address after: 215000 Room 101, 5 building, 78 Ling Ling Road, hi tech Zone, Suzhou, Jiangsu. Patentee after: Suzhou Sha Li Medical Instrument Co., Ltd. Address before: 215133 68 Litang River Road, Xiangcheng District, Suzhou, Jiangsu Patentee before: Suzhou Sterilance Medical Equipment Co., Ltd. |