CN106581826A - Injection needle with syringe needle protective sleeve - Google Patents
Injection needle with syringe needle protective sleeve Download PDFInfo
- Publication number
- CN106581826A CN106581826A CN201611262237.2A CN201611262237A CN106581826A CN 106581826 A CN106581826 A CN 106581826A CN 201611262237 A CN201611262237 A CN 201611262237A CN 106581826 A CN106581826 A CN 106581826A
- Authority
- CN
- China
- Prior art keywords
- syringe needle
- overcoat
- holding section
- syringe
- protective
- 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.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 93
- 238000002347 injection Methods 0.000 title claims abstract description 78
- 239000007924 injection Substances 0.000 title claims abstract description 78
- 239000003182 parenteral nutrition solution Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 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 4
- 102000004877 Insulin Human genes 0.000 description 2
- 108090001061 Insulin Proteins 0.000 description 2
- 208000012266 Needlestick injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 229940125396 insulin Drugs 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920000965 Duroplast Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of an injection needle and specifically relates to an injection needle with a syringe needle protective sleeve. The injection needle comprises a syringe (1) whose top end is provided with a syringe needle (2); and a protective sleeve (3) which is arranged at the top end of the syringe (1), wherein the protective sleeve comprises an inner sleeve (31) fixedly connected with the syringe (1) and an outer sleeve (32) which sleeves the outer side of the inner sleeve (31) and can perform reciprocating movement along the outer wall of the inner sleeve (31), the outer sleeve (32) is provided with a collection position and a protection position, the outer sleeve (32), when being at the protection position, internally forms an accommodation chamber (4) used for protecting the syringe needle (2); and the inner wall of the outer sleeve (32) and the outer wall of the inner sleeve (31) are provided with a locking structure for locking the two at the protection position. The injection needle with the syringe needle protective sleeve, provided by the invention, can effectively prevent the syringe needle of the injection needle from contamination, facilities reuse, and at the same time, reduces safety hidden trouble that the syringe needle pricks skin.
Description
Technical field
The present invention relates to injection needle technical field, and in particular to a kind of injection needle with protective sleeve of syringe needle.
Background technology
Injection needle generally comprises cylinder, the needle holder installed in cylinder top and the syringe needle being fixed in needle holder, pin
Tip protection lid is arranged with head.When in use, remove Tip protection lid to be injected, after the completion of injection, in order to avoid syringe needle
His application on human skin is stabbed, usually directly again covers protective sleeve of syringe needle on syringe needle, so still suffer from thorn when this operation is being carried out
Hinder the possibility of operator's skin, with certain potential safety hazard.For example, Chinese patent literature CN104771814A discloses one
Disposable safe type injection of insulin syringe needle, including needle body, needle stand, main casing, oversheath are planted, oversheath is used to protect injection needle
Head is overall, and oversheath sleeve lining is provided with fixture block, and fixture block corresponds in position the bayonet socket on main casing cylinder lateral wall, protects outside
Fixture block snaps in bayonet socket and stretches in main casing body under set suit main casing state, oversheath is connected with main casing locking.
This structure causes oversheath that protective effect well can be played to injection needle before injection needle is not used,
But after injection needle use, in order to prevent stabbing skin, need again to recover oversheath on syringe needle, so grasp from top to bottom
When making, because oversheath needs to be directed at the position that injection needle is located, if misoperation, it is easy to stab the skin of operator
Skin, causes certain personal injury, there is potential safety hazard.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome injection needle Tip protection lid of the prior art to be removed
What is existed when covering on syringe needle again afterwards stabs the defect of the potential safety hazard of skin, so as to provide one kind in injection needle Tip protection
Lid be removed after, when covering on syringe needle again, can reduce to the full extent needlestick injuries skin potential safety hazard with pin
The injection needle of head protection set.
For this purpose, the technical scheme of the application provides a kind of injection needle with protective sleeve of syringe needle, including：
Syringe, for storing parenteral solution, its top is provided with syringe needle；
Protective case, is arranged on the top of the syringe, including the inner sleeve being fixedly connected with the syringe and is sheathed on described
Inner sleeve outside and the overcoat that can move back and forth along the outer wall of inside race, the overcoat has in the inner sleeve bottom not shadow
The stowed position of the sound needle injection and the protective position stretched out towards the needle tip direction relative to the inner sleeve, institute
The containing cavities for protecting the syringe needle are internally formed when being enclosed within protective position outside stating；The outer casing inner wall and the outer wall of inside race
The latch-up structure for locking both is provided with the protective position.
The described injection needle with protective sleeve of syringe needle, the latch-up structure includes first located at the top of the inner sleeve
Holding section, and located at the second holding section of the bottom of the overcoat, first holding section is moved to the guarantor in the overcoat
During shield position, formed with second holding section and be engaged by clamping.
The described injection needle with protective sleeve of syringe needle, first holding section is draw-in groove or card convex, correspondingly, described the
Two holding sections are the card convex or draw-in groove coordinated with first holding section.
The described injection needle with protective sleeve of syringe needle, first holding section by the inner sleeve outer wall top at least one
Part cave inward to be formed, second holding section by the overcoat inner wall lower at least a portion it is inwardly projecting formed, or
Person,
First holding section by the inner sleeve outer wall top at least a portion it is outwardly formed, second clamping
By inner wall lower at least a portion of the overcoat, outwards depression is formed in portion.
The described injection needle with protective sleeve of syringe needle, the inner sleeve top is provided with radial positioning flange along its outer peripheral face,
The radial positioning flange props up the upper surface of second holding section when the overcoat is located at the protective position.
The described injection needle with protective sleeve of syringe needle, is draw-in groove in first holding section, and second holding section is
During card convex, the inner sleeve bottom is provided with radial positioning draw-in groove along its outer peripheral face, and the radial positioning draw-in groove is located in the overcoat
Positioning is formed during the stowed position with the second holding section of the overcoat to be engaged by clamping.
The described injection needle with protective sleeve of syringe needle, the draw-in groove phase of the radial positioning draw-in groove and first holding section
Together.
The described injection needle with protective sleeve of syringe needle, be divided into first holding section and the second holding section draw-in groove and
Card convex, at least one of both are provided with both shapes of guiding when the overcoat is switched from the stowed position to the protective position
Into the guiding surface being engaged by clamping.
The described injection needle with protective sleeve of syringe needle, the overcoat is elastic material.
The described injection needle with protective sleeve of syringe needle, the highest of its containing cavities when the overcoat is located at the protective position
Point is not less than the top of the syringe needle.
The described injection needle with protective sleeve of syringe needle, the peak of the containing cavities beyond the top 1 of the syringe needle～
2cm。
The described injection needle with protective sleeve of syringe needle, the latch-up structure includes outer on the outer wall of the inner sleeve
Screw thread, and the internal thread on the inwall of the overcoat, the external screw thread and the internal thread shape at the protective position
Coordinate into screw thread.
The described injection needle with protective sleeve of syringe needle, also includes the outer upper shield located at the top of the overcoat, described outer
The central authorities of upper shield offer a through hole；
The injection needle is additionally included in using the Tip protection lid being front set on the syringe needle；The aperture of the through hole is big
In the maximum radial dimension of the Tip protection lid.
Technical solution of the present invention, has the advantage that：
1. in the injection needle with protective sleeve of syringe needle that the present invention is provided, after injection needle completes injection, need to syringe needle
When carrying out the protection of Anti-stabbing, only need to by overcoat along its axially upwards pull-up pass through phase to protective position, now inner sleeve and overcoat
The latch-up structure for mutually coordinating forms the containing cavities of a syringe needle so that even if syringe needle is after first time use, is also avoided that directly
Exposure outside, but is effectively protected, it is to avoid the secondary pollution of syringe needle, simultaneously because overcoat is to be set in advance in syringe needle
Periphery, when being pulled upwardly overcoat, overcoat is moved upwards along predetermined direction, it is not necessary to which the position of syringe needle is aligned,
Therefore reduce when overcoat is stretched, the potential safety hazard of needlestick injuries operator's skin.
2. in the injection needle with protective sleeve of syringe needle that the present invention is provided, the first holding section is draw-in groove or card convex, correspondingly,
Second holding section is the card convex or draw-in groove coordinated with the first holding section.This snap fit is ensureing that inner sleeve and overcoat connection are reliable
On the premise of, it is not only simple in structure, cost is relatively low, and convenient operation, and user need not spend the very big strength just can be outer
Set pull-up, usability is preferable.
3. in the injection needle with protective sleeve of syringe needle that the present invention is provided, inner sleeve is set on the periphery on syringe top,
Under the premise of effective protection syringe needle is not contaminated, the production cost of protective case is reduced, and because the protective case is mounted in
The top of syringe, as long as therefore syringe top external diameter it is identical, the protective case goes for the syringe of different size, be suitable for model
Enclose wider.
4. in the injection needle with protective sleeve of syringe needle that the present invention is provided, the setting of inner sleeve top radial positioning flange is caused
When positioned at protective position, overcoat top upper surface is subject to certain restrictions overcoat, will not move upwards so that departing from protection
Position.The setting of inner sleeve bottom radial positioning draw-in groove causes overcoat when positioned at stowed position, and jacket and inner sleeve can be well
It is fixed, will not loosen.
5. in the injection needle with protective sleeve of syringe needle that the present invention is provided, at least the one of the first holding section and the second holding section
It is individual to be provided with guiding surface, good guiding function can be played when overcoat is pulled upwardly.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is that the injection needle with protective sleeve of syringe needle provided in the first embodiment of the invention is being cutd open using front
View；
Fig. 2 be the present invention the first embodiment in the cuing open after use of the injection needle with protective sleeve of syringe needle that provide
View；
Fig. 3 is the sectional view of inner sleeve in the first embodiment of the invention；
Fig. 4 is the sectional view of overcoat in the first embodiment of the invention；
Fig. 5 is that the injection needle with protective sleeve of syringe needle provided in second embodiment of the invention is being cutd open using front
View；
Fig. 6 be the present invention second embodiment in the cuing open after use of the injection needle with protective sleeve of syringe needle that provide
View；
Fig. 7 is the sectional view of inner sleeve in second embodiment of the invention；
Fig. 8 is the sectional view of overcoat in second embodiment of the invention；
Fig. 9 is that the injection needle with protective sleeve of syringe needle provided in the third embodiment of the invention is being cutd open using front
View；
Figure 10 be the present invention the third embodiment in provide the injection needle with protective sleeve of syringe needle after use
Sectional view；
Figure 11 is the sectional view of inner sleeve in the third embodiment of the invention；
Figure 12 is the sectional view of overcoat in the third embodiment of the invention；
Figure 13 is the injection needle with protective sleeve of syringe needle provided in the 4th kind of embodiment of the invention using front
Sectional view；
Figure 14 be the present invention the 4th kind of embodiment in provide the injection needle with protective sleeve of syringe needle after use
Sectional view；
Figure 15 is the sectional view of inner sleeve in the 4th kind of embodiment of the invention；
Figure 16 is the sectional view of overcoat in the 4th kind of embodiment of the invention；
Description of reference numerals：
1- syringes；2- syringe needles；3- protective cases；4- containing cavities；5- needle holders；The outer upper shields of 6-；7- Tip protection lids；11- heads
Portion；12- main parts；31- inner sleeves；32- overcoats；51- bases；52- support bases；61- through holes；71- cavitys；The clampings of 311- first
Portion；312- radial positioning flanges；313- radial positioning draw-in grooves；The holding sections of 321- second.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As long as additionally, technical characteristic involved in invention described below different embodiments non-structure each other
Just can be combined with each other into conflict.
A kind of specific embodiment of the injection needle with protective sleeve of syringe needle as shown in Figure 1, including syringe 1, for storing up
Parenteral solution is put, its top is provided with syringe needle 2；Protective case 3, is arranged on the top of the syringe 1, including fixing with the syringe 1
The inner sleeve 31 of connection and the overcoat 32 that be sheathed on the outside of the inner sleeve 31 and can move back and forth along the outer wall of the inner sleeve 31,
The overcoat 32 has does not affect the stowed position of the injection of the syringe needle 2 and relative to the inner sleeve 31 in the bottom of the inner sleeve 31
Towards the protective position that the top orientation of the syringe needle 2 is stretched out, the overcoat 32 is internally formed for protecting in protective position
State the containing cavities 4 of syringe needle 2；The inwall of the overcoat 32 is provided with the protective position with the outer wall of the inner sleeve 31 and locks both
Latch-up structure.
Using front, overcoat 32 is set in completely in inner sleeve 31, i.e., positioned at stowed position injection needle；When injection needle is being used
Afterwards, syringe needle 2 exposes outside, now only needs to overcoat 32 is pulled upwardly to protective position along its axial direction, until overcoat 32
Interfixed by latch-up structure with inner sleeve 31, so as to syringe needle 2 is protected in the containing cavities 4 that overcoat 32 and inner sleeve 31 are formed,
The secondary pollution of syringe needle 2 is so avoided to the full extent；Simultaneously because overcoat 32 is the periphery for being set in advance in syringe needle 2, i.e.,
The relative position of overcoat 32 and syringe needle 2 is defined, when being so pulled upwardly overcoat 32, overcoat 32 is transported upwards along predetermined direction
It is dynamic, it is not necessary to which that the position of syringe needle 2 is aligned again, therefore reduce when overcoat 32 is stretched, syringe needle 2 stabs operator's skin
The potential safety hazard of skin.
Specifically, syringe 1 can be made up of hard material, such as duroplasts or other synthetic materials, the parenteral solution in syringe 1
Can be insulin or other nutrient solutions, as long as using the achievable parenteral solution of injection needle of the application.Overcoat 32 is bullet
Property material, such as rubber, flexiplast, during ensureing to pull up overcoat 32 under external force, overcoat 32 being capable of smooth edge
The outer wall of inner sleeve 31 motion, and when protective position is moved to the mutually locking of inner sleeve 31.The internal diameter of overcoat 32 is slightly larger than inner sleeve
31 external diameter is arranged, so that overcoat 32 is set on the periphery of inner sleeve 31.
Embodiment is improved as a kind of, the latch-up structure includes the first holding section located at the top of the inner sleeve 31
311, and located at the second holding section 321 of the bottom of the overcoat 32, first holding section 311 is moved in the overcoat 32
During the protective position, formed with second holding section 321 and be engaged by clamping.Specifically, first holding section 311 is draw-in groove
Or card convex, correspondingly, second holding section 321 is the card convex or draw-in groove coordinated with first holding section 311.Further
Ground, first holding section 311 is caved inward by outer wall top at least a portion of the inner sleeve 31 and is formed, second clamping
Portion 321 by the overcoat 32 inner wall lower at least a portion it is inwardly projecting formed, or, first holding section 311 is by institute
State the outer wall top outwardly formation of at least a portion of inner sleeve 31, second holding section 321 by the overcoat 32 inwall
Outwards depression is formed bottom at least a portion.
The first specific embodiment of the injection needle with protective sleeve of syringe needle as shown in figures 1-4, the first holding section
311 are recessed the wedge shape draw-in groove to be formed for relative two parts of the side wall upper part of inner sleeve 31 to the center of inner sleeve 31, the second card
The wedge shape card convex that the relative two parts for the side wall lower ends that portion 321 is overcoat 32 are bent to form to the center of inner sleeve 31 is held,
When overcoat 32 is pulled upwardly to protective position, with by the overcoat 32 after stretching and inner sleeve 31 in wedge shape card convex insertion wedge shape draw-in groove
It is fixed.
Second specific embodiment of the injection needle with protective sleeve of syringe needle as shown in figures 5-8, the side wall of inner sleeve 31
Top is formed with relative two protuberance, and the first holding section 311 is the center of the mid portion of two protuberances to inner sleeve
The strip draw-in groove that depression is formed, the second holding section 321 is relative two parts of the side wall lower ends of overcoat 32 in overcoat 32
The strip card convex to be formed is protruded at the heart, when overcoat 32 is pulled upwardly to protective position, in strip card convex insertion strip draw-in groove
So that the overcoat 32 after stretching and inner sleeve 31 to be fixed.
The third specific embodiment of the injection needle with protective sleeve of syringe needle as shown in figs. 9 to 12, the side of inner sleeve 31
Wall top is formed with a protuberance, and the first holding section 311 is recessed for the mid portion of the protuberance to the center of inner sleeve 31
Protrude to the direction in the center of circle of overcoat 32 for a part for the lower sidewall of overcoat 32 the strip draw-in groove of formation, the second holding section 321
The wedge shape card convex of formation, when overcoat 32 is pulled upwardly to protective position, wedge shape card convex is inserted in strip draw-in groove to stretch
Overcoat 32 and inner sleeve 31 afterwards is fixed.
4th kind of specific embodiment of the injection needle with protective sleeve of syringe needle as shown in Figure 13～16, the first holding section
311 is that relative two parts of the side wall upper part of inner sleeve 31 protrude the strip card convex to be formed to the direction away from the center of circle of inner sleeve 31,
Second holding section 321 is recessed what is formed for relative two parts of the lower sidewall of overcoat 32 to the direction away from the center of circle of overcoat 32
Strip draw-in groove, when overcoat 32 is pulled upwardly to protective position, with outer after by stretching in strip card convex insertion strip draw-in groove
Set 32 is fixed with inner sleeve 31.
Embodiment is improved as a kind of, as shown in Fig. 3,7,11 and 15, the top of the inner sleeve 31 is provided with along its outer peripheral face
Radial positioning flange 312, the radial positioning flange 312 props up described second when the overcoat 32 is located at the protective position
The upper surface of holding section 321.Specifically, radial positioning flange 312 can be by the side wall top of inner sleeve 31 at least a portion outwards
Protrusion is formed, and the side wall top of such as inner sleeve 31 is bent to form to the direction away from the center of circle of inner sleeve 31.
Embodiment is improved as a kind of, as shown in figure 3, be draw-in groove in first holding section 311, second clamping
When portion 321 is card convex, the bottom of the inner sleeve 31 is provided with radial positioning draw-in groove 313, the radial positioning draw-in groove 313 along its outer peripheral face
Positioning is formed when the overcoat 32 is located at the stowed position with second holding section 321 of the overcoat 32 to be engaged by clamping.Tool
Body ground, the radial positioning draw-in groove 313 is identical with the draw-in groove of first holding section 311, is so located in overcoat 32 and packs up position
When putting, the second holding section 321 is just inserted in radial positioning draw-in groove 313 and fixes inner sleeve 31 and overcoat 32.
Embodiment is improved as a kind of, the draw-in groove and card of the holding section 321 of first holding section 311 and second is divided into
Convex, at least one of both are provided with both shapes of guiding when the overcoat 32 is switched from the stowed position to the protective position
Into the guiding surface being engaged by clamping.Specifically, guiding surface is at least one of contact surface of draw-in groove and card convex.
Embodiment is improved as a kind of, the peak of its containing cavities 4 is not when the overcoat 32 is located at the protective position
Less than the top of the syringe needle 2.Specifically, the peak of the containing cavities 4 exceeds the 1～2cm of top of the syringe needle 2, with more
Syringe needle 2 is played a protective role well.
As a kind of outer upper shield 6 for improving embodiment, also including located at the top of the overcoat 32, the outer upper shield 6
Central authorities offer a through hole 61；The injection needle is additionally included in using the Tip protection lid 7 being front set on the syringe needle 2,
The one end of Tip protection lid 7 is closed, and the other end is opened wide, and is internally provided with the cavity 71 on the top of a receiving needle holder 5, and syringe needle is protected
Protecting cover 7 extends the through hole 61 of outer upper shield 6, using front, to syringe needle 2 maximally effective protection is carried out with injection needle；The through hole
61 aperture is more than the maximum radial dimension of the Tip protection lid 7, so that Tip protection lid 7 can extend through hole 61.
Embodiment is improved as a kind of, also including the pin being arranged between the top of the inner sleeve 31 and the syringe 1
Headstock 5, the needle holder 5 includes the base 51 that is engaged with the top external diameter of the syringe 1 of an internal diameter and positioned at the base
The support base 52 in 51 central authorities, base 51 and the top of syringe 1 are engaged, to ensure needle holder 5 and syringe 1 both it to the full extent
Between sealing, the setting of support base 52 causes syringe needle 2 to firmly install in needle holder 5, and plays certain protective effect, institute
State syringe needle 2 and sequentially pass through the support base 52 and base 51, in extending to the parenteral solution inside the syringe 1.The syringe needle 2 is consolidated
In being scheduled on the central support base 52 of the needle holder 5, and extend the top of the needle holder 5, the inner sleeve 31 is set in
On the periphery of the needle holder 5, the top of the inner sleeve 31 flushes setting with the top of the support base 52, not only effective protection
From outside damage, and when inner sleeve 31 and overcoat 32 is arranged completely, the tip portion of syringe needle 2 can expose needle holder 5
Outside, it is easy to injection.
Embodiment is improved as another kind of, the syringe 1 includes a head 11 and a main part 12, the He of the head 11
Main part 12 is integrally formed setting, is easy to processing；And the external diameter of the head 11 is less than the external diameter of the main part 12, the pin
Headstock 5 is set on the periphery of head 11 of the syringe 1, so installs from the top to the bottom outer of the injection needle after protective case 3
Footpath can keep basically identical, be easy to deposit and transport.The top of main part 12 of the bottom of the needle holder 5 and the syringe 1
Between be reserved with space, the side wall lower ends of the inner sleeve 31 bend inwards in the insertion space with by the inner sleeve 31 with it is described
Needle holder 5 is fixed, this mounting means simple structure, is easy to processing.
Used as another kind of specific embodiment, the latch-up structure includes the outer spiral shell on the outer wall of the inner sleeve 31
Line, and the internal thread on the inwall of the overcoat 32, the external screw thread and the internal thread shape at the protective position
Coordinate into screw thread.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (13)
1. a kind of injection needle with protective sleeve of syringe needle, it is characterised in that include：
Syringe (1), for storing parenteral solution, its top is provided with syringe needle (2)；
Protective case (3), is arranged on the top of the syringe (1), including the inner sleeve (31) and set that are fixedly connected with the syringe (1)
Located at the inner sleeve (31) outside and the overcoat (32) that can move back and forth along the inner sleeve (31) outer wall, the overcoat
(32) with the stowed position that the syringe needle (2) injection is not affected in the inner sleeve (31) bottom and relative to the inner sleeve (31)
Towards the protective position that the syringe needle (2) top orientation is stretched out, the overcoat (32) is internally formed for protecting in protective position
Protect the containing cavities (4) of the syringe needle (2)；Overcoat (32) inwall sets with the inner sleeve (31) outer wall at the protective position
There is the latch-up structure for locking both.
2. the injection needle with protective sleeve of syringe needle according to claim 1, it is characterised in that the latch-up structure includes setting
In first holding section (311) on the top of the inner sleeve (31), and located at the second holding section of the bottom of the overcoat (32)
(321), first holding section (311) is when the overcoat (32) is moved to the protective position, with second holding section
(321) formed and be engaged by clamping.
3. the injection needle with protective sleeve of syringe needle according to claim 2, it is characterised in that first holding section
(311) it is draw-in groove or card convex, correspondingly, second holding section (321) is the card convex coordinated with first holding section (311)
Or draw-in groove.
4. the injection needle with protective sleeve of syringe needle according to claim 3, it is characterised in that first holding section
(311) caved inward by outer wall top at least a portion of the inner sleeve (31) and formed, second holding section (321) is by described
The inwardly projecting formation of inner wall lower at least a portion of overcoat (32), or,
First holding section (311) by the inner sleeve (31) outer wall top at least a portion it is outwardly formed, described the
By inner wall lower at least a portion of the overcoat (32), outwards depression is formed for two holding sections (321).
5. the injection needle with protective sleeve of syringe needle according to any one of claim 2～4, it is characterised in that in described
Set (31) top is provided with radial positioning flange along its outer peripheral face, and the radial positioning flange is in the overcoat (32) positioned at the guarantor
The upper surface of second holding section (321) is propped up during shield position.
6. the injection needle with protective sleeve of syringe needle according to any one of claim 3～5, it is characterised in that described
First holding section (311) is draw-in groove, second holding section (321) for card convex when, inner sleeve (31) bottom is along its outer peripheral face
Be provided with radial positioning draw-in groove, the radial positioning draw-in groove when the overcoat (32) is positioned at the stowed position with the overcoat
(32) the second holding section (321) forms positioning and is engaged by clamping.
7. the injection needle with protective sleeve of syringe needle according to claim 6, it is characterised in that the radial positioning draw-in groove with
The draw-in groove of first holding section (311) is identical.
8. the injection needle with protective sleeve of syringe needle according to any one of claim 2～5, it is characterised in that be divided into
First holding section (311) and the draw-in groove and card convex of the second holding section (321), at least one of both are provided with the overcoat
(32) both are guided to form the guiding surface being engaged by clamping when being switched to the protective position from the stowed position.
9. the injection needle with protective sleeve of syringe needle according to any one of claim 1～8, it is characterised in that described outer
Set (32) is elastic material.
10. the injection needle with protective sleeve of syringe needle according to any one of claim 1～9, it is characterised in that described outer
Set (32) positioned at the protective position when its containing cavities (4) peak be not less than the top of the syringe needle (2).
11. injection needles with protective sleeve of syringe needle according to claim 10, it is characterised in that the containing cavities (4)
Top 1～2cm of the peak beyond the syringe needle (2).
12. injection needles with protective sleeve of syringe needle according to claim 1, it is characterised in that the latch-up structure includes
External screw thread on the outer wall of the inner sleeve (31), and the internal thread on the inwall of the overcoat (32), the outer spiral shell
Line and the internal thread form screw thread cooperation at the protective position.
13. injection needles with protective sleeve of syringe needle according to any one of claim 1～12, it is characterised in that also wrap
The outer upper shield (6) located at the top of the overcoat (32) is included, the central authorities of the outer upper shield (6) offer a through hole (61)；
The injection needle is additionally included in using the Tip protection lid (7) being front set on the syringe needle (2)；The through hole (61)
Maximum radial dimension of the aperture more than the Tip protection lid (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611262237.2A CN106581826A (en) | 2016-12-30 | 2016-12-30 | Injection needle with syringe needle protective sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611262237.2A CN106581826A (en) | 2016-12-30 | 2016-12-30 | Injection needle with syringe needle protective sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106581826A true CN106581826A (en) | 2017-04-26 |
Family
ID=58582773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611262237.2A Pending CN106581826A (en) | 2016-12-30 | 2016-12-30 | Injection needle with syringe needle protective sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106581826A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243108A (en) * | 2017-07-03 | 2017-10-13 | 玉环县天来机械设备有限公司 | Upper self-destruction sheath mechanism |
| CN107928752A (en) * | 2017-12-23 | 2018-04-20 | 尹月月 | Ultrasonic surgical blades with disposable cutter head |
| CN108635002A (en) * | 2018-04-04 | 2018-10-12 | 微尔创（武汉）医疗科技有限公司 | The ferrule structure of gun barrel in self-tightening type elastic thread looping and binding device |
| CN110064102A (en) * | 2018-01-23 | 2019-07-30 | 袁丽 | A kind of syringe needle and syringe |
| CN111939394A (en) * | 2020-08-25 | 2020-11-17 | 华中农业大学 | Syringe needle protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243108A (en) * | 2017-07-03 | 2017-10-13 | 玉环县天来机械设备有限公司 | Upper self-destruction sheath mechanism |
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| CN111939394A (en) * | 2020-08-25 | 2020-11-17 | 华中农业大学 | Syringe needle protection device |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170426 |