CN109513072A - Anti- acupuncture needle header structure and needling prevention injector - Google Patents
Anti- acupuncture needle header structure and needling prevention injector Download PDFInfo
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- CN109513072A CN109513072A CN201910056330.5A CN201910056330A CN109513072A CN 109513072 A CN109513072 A CN 109513072A CN 201910056330 A CN201910056330 A CN 201910056330A CN 109513072 A CN109513072 A CN 109513072A
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- main body
- needle
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- 238000001467 acupuncture Methods 0.000 title claims abstract description 41
- 230000002265 prevention Effects 0.000 title claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 14
- 230000001012 protector Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- 230000004323 axial length Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000030507 AIDS Diseases 0.000 description 1
- 208000012266 Needlestick injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 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
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- 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
Abstract
The present invention provides a kind of anti-acupuncture needle header structure and needling prevention injectors, belong to medical instruments field.Anti- acupuncture needle header structure includes that needle stand, needle main body and anti-acupuncture group part, needle main body are inserted in needle stand.Anti- acupuncture group part includes shield, elastic telescopic part and protection main body, and the inside of shield has installation cavity, and the first end of shield has the installing port being connected to installation cavity, and shield is threadedly coupled with needle stand.Needle main body is arranged in installing port and installation cavity.It protects body interior that there is through cavities, one end of main body is protected to connect with needle stand, and protection main body is set in the outside of shield.The both ends of elastic telescopic part are held in the first end of needle stand and shield respectively, and elastic telescopic part has so that the trend that shield moves in through cavities.The first end of shield can move to outside through cavities, and the second end of shield can be held in through cavities, so that shield and protection main body can cover needle main body.
Description
Technical field
The present invention relates to medical instruments fields, in particular to a kind of anti-acupuncture needle header structure and the thorn injection of anti-needle
Device.
Background technique
Syringe can be used for injecting and exporting various liquid, can be used for pumping liquid.Note after plugging injection needle
Emitter is commonly used in medical field by various drug injections to human body or the blood vessel of animal, subcutaneous tissue etc..Syringe uses
Afterwards, for doctor or nurse, it is easy to be injected the injection needlestick injury on device；Handle the staff of these Biohazard Wastes
Also it is easy to be stabbed, to have infected upper disease related with blood, such as AIDS.
Summary of the invention
The embodiment provides a kind of anti-acupuncture needle header structure and needling prevention injectors, it is intended to solve existing skill
Injection needle in art is easy the technical issues of stabbing staff.
In a first aspect, the embodiment of the present invention provides a kind of anti-acupuncture needle header structure comprising: needle stand, needle main body and
Anti- acupuncture group part, needle main body are inserted in needle stand.Anti- acupuncture group part includes shield, elastic telescopic part and protection main body, shield
Inside there is installation cavity, and the first end of shield has the installing port that be connected to installation cavity, shield and needle stand spiral shell
Line connection；Needle main body is arranged in installing port and installation cavity.Protect body interior that there is through cavities, protect one end of main body with
Needle stand connection, and protection main body is set in the outside of shield.The both ends of elastic telescopic part are held in needle stand and protection respectively
The first end of cover, elastic telescopic part have so that the trend that shield moves in through cavities.The first end of shield can
It moves to outside through cavities, the second end of shield can be held in through cavities, so that shield and protection main body energy
It is enough to cover needle main body.
In a kind of possible embodiment, the first end of shield is through chamber when protection main body is set in outside shield
Outside body.
In a kind of possible embodiment, it is operation portion that shield, which is located at the part outside through cavities, operation portion
The raised tread plate of outer wall.
In a kind of possible embodiment, anti-acupuncture needle header structure further includes gear ring, the inner wall of gear ring can with it is anti-skidding
Item engagement, gear ring can be sheathed on the outside of operation portion.
In a kind of possible embodiment, protection main body includes fixed protection part and at least one protection body, is fixed anti-
Guard has opposite third end and the 4th end, has inside fixed protection part and runs through chamber through the first of third end and the 4th end
Body.The third end of fixed protection part is connect with needle stand, at least one protection body is set in the first through cavities, and at least one
One end of protection body can pass through the 4th end of fixed protection part, and the other end of at least one protection body can be held in first and pass through
In transluminal body.The inside of at least one protection body has the second through cavities, and the first end of shield can move to second and pass through
Transluminal is external, and the second end of shield can be held in the second through cavities.
In a kind of possible embodiment, the other end of at least one protection body is provided with elastic piece, and elastic piece can
Across fixed protection part the 4th end and be held in the periphery of fixed protection part.
Optionally, there are two protection body settings, the first protection body in two protection bodies is set in the first through cavities,
One end of first protection body can pass through the 4th end of fixed protection part, and the other end of the first protection body can be held in first and pass through
In transluminal body.The inside of first protection body has the first sub- through cavities, and the second protection body in two protection bodies is set to the
In one sub- through cavities, one end of the second protection body can pass through one end of the second protection body, the other end energy of the second protection body
It is enough held in the first sub- through cavities.The inside of second protection body has the second sub- through cavities, the first end energy of shield
It enough moves to outside the second sub- through cavities, the second end of shield can be held in the second sub- through cavities.
In a kind of possible embodiment, the other end of the first protection body is provided with elastic piece, and the first protection body
Elastic piece can be held in the periphery of fixed protection part.One end of second protection body is provided with elastic piece, and the second protection body
Elastic piece can be held in the periphery of the first protection body.
In a kind of possible embodiment, the second end of shield is provided with elastic piece, and the elastic piece of second end can
It is pierced by protection main body and is held in the periphery of protection main body.
In a kind of possible embodiment, elastic telescopic part is spring, and spring pocket is set to outside needle main body.
In a kind of possible embodiment, the first end of shield has support division, and the periphery formation of installing port supports
The one end in portion, spring is held in support division.
Second aspect, the embodiment of the present invention provide a kind of needling prevention injector comprising syringe and above-mentioned anti-needle thorn
The end of needle head structure, needle stand and syringe connects.
The present invention at least has the advantages that
When needing to protect by needle main body, since shield is threadedly coupled shield with needle stand, shield is rotated
Shield and needle stand can be then made to be detached from, at this time due to the elastic-restoring force of elastic telescopic part, so that shield is by bullet to separate
The first end of one end of needle stand, shield moves to outside through cavities, and the second end of shield can be held in through cavities,
The inner space of shield and the through cavities of protection main body become the accommodation space of needle main body, shield and protection main body for needle
Main body covers, to avoid the needle pricks people of needle main body.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram under the first state of anti-acupuncture needle header structure provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram under the second state of anti-acupuncture needle header structure provided in an embodiment of the present invention；
Fig. 3 is the explosive view of anti-acupuncture needle header structure provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of needle stand provided in an embodiment of the present invention Yu needle main body；
Fig. 5 is the structural schematic diagram of shield provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of anti-acupuncture needle header structure provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of needling prevention injector provided in an embodiment of the present invention.
Icon: 10- needling prevention injector；The anti-acupuncture needle header structure of 100-；110- needle stand；111- raised line；120- needle main body；
121- protective case；The anti-acupuncture group part of 130-；131- shield；1311- first end；1312- second end；1313- support division；
1314- operation portion；131a- installing port；131b- spiral groove；131c- tread plate；132- elastic telescopic part；133- protection master
Body；1331- fixed protection part；133a- third end；The 4th end 133b-；The first protection body of 1332-；The second protection body of 1333-；
140- gear ring；151- elastic piece；210- syringe；220- piston.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below to protect
The scope of the present invention of shield, but it is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it is to be understood that, term " length ", "upper", "lower", "top", "inner", "outside" etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplifies
Description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, constructed and grasped with specific orientation
Make, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, unless separately
There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
The embodiment provides a kind of anti-acupuncture needle header structure 100 and needling prevention injectors 10, it is intended to solve
Injection needle in the prior art is easy the technical issues of stabbing staff.
Following will be combined with the drawings in the embodiments of the present invention, and the technical solution in the embodiment of the present invention is described.
Referring to Fig.1 and 2, Fig. 1 shows the signal of the overall structure under the first state of anti-acupuncture needle header structure 100
Figure, Fig. 2 shows the structural schematic diagrams under the second state of anti-acupuncture needle header structure 100.Please refer to Fig. 1-Fig. 3, anti-acupuncture needle
Header structure 100 includes needle stand 110, needle main body 120 and anti-acupuncture group part 130 (referring to Fig. 6), and one end of needle main body 120 plugs
In needle stand 110 (referring to Fig. 4), needle main body 120 is hollow metal needle, and material can be stainless steel.Pass through anti-acupuncture group part 130
Needle main body 120 can be protected, in case needle main body 120 stabs medical worker or staff.
Specifically, anti-acupuncture group part 130 includes shield 131, elastic telescopic part 132 and protection main body 133, shield
131 inside has installation cavity, and shield 131 has opposite first end 1311 and second end 1312, as shown in figure 5, the
Above, first end 1311 is in lower section at two ends 1312.The first end 1311 of shield 131 has the installation being connected to installation cavity
Mouth 131a, needle main body 120 are arranged in installing port 131a and installation cavity.Shield 131 is threadedly coupled with needle stand 110, optionally,
The inner wall of shield 131 offers spiral groove 131b, and the outer wall of needle stand 110 has can be convex with spiral groove 131b cooperation
Item 111 enables to raised line 111 to move in spiral groove 131b, so that shield 131 by rotating shield 131
It is screwed with needle stand 110 and reaches relatively-stationary purpose；After raised line 111 skids off spiral groove 131b, then shield 131 and needle stand
110 separation.Alternatively it is also possible to which the outer wall of the inner wall of shield 131 and needle stand 110 is respectively provided with screw thread, pass through shield 131
Screw thread and the screw thread of needle stand 110 cooperate, to realize the threaded connection of shield 131 Yu needle stand 110, rotation shield
131 also can be such that it separates with needle stand 110.
Protecting the inside office of main body 133 has through cavities, and in other words, the through cavities of protection main body 133 is through anti-
Protect the top and bottom of main body 133.Protection 133 upper end of main body is connect with needle stand 110, can be bonding, is also possible to by super
Sonic soldering connects；The whole outside for being set in shield 131 of protection main body 133.
The both ends of elastic telescopic part 132 are held in the first end 1311 of needle stand 110 and shield 131 respectively.Wherein, prevent
Support division 1313 can be set in the first end 1311 of shield 131, which is formed by the periphery of installing port 131a.Such as figure
Shown in 1, support division 1313 is to have end plate jaggy, which is structure as a whole with shield 131.In addition, elastic telescopic part
132 can be used the elastic slice of spring or bending.When using spring, spring pocket is set to outside needle main body 120.One end of spring supports
It is connect in support division 1313, or with support division 1313.It is of course also possible to be not provided with support division 1313, by one end of spring with
The first end 1311 of shield 131 connects.
Under general state, elastic telescopic part 132 is due to being compressed in through cavities, and one end of elastic telescopic part 132
The first end 1311 in shield 131 is supported, thus elastic telescopic part 132 has so that shield 131 is transported in through cavities
Dynamic trend.Under the action of the restoring force of elastic telescopic part 132, the first end 1311 of shield 131, which can move to, to be run through
Outside cavity, the second end 1312 of shield 131 can be held in through cavities, so that shield 131 and protection main body 133
Needle main body 120 can be covered (referring to Fig.1).
Specifically, the internal diameter of 110 one end of close needle stand of main body 133 is protected to be greater than the separate needle stand 110 of protection main body 133
One end internal diameter, that is to say protection main body 133 upper-end inner diameter be greater than its lower end internal diameter, the second end 1312 of shield 131
Flange can be set so that the first end 1311 of shield 131 can move to outside through cavities, and second end 1312 due to
The effect of flange is held in through cavities.It is of course also possible to be arranged to protect the internal diameter of the upper end of main body 133 to be greater than its lower end
Internal diameter, the outer diameter of the first end 1311 of shield 131 is less than the outer diameter of second end 1312, it is also possible that shield 131
First end 1311 can move to outside through cavities, and second end 1312 is held in through cavities due to the effect of flange.Separately
Outside, the inner wall setting lug boss of the lower end of protection main body 133 also can be set into, the second end 1312 of shield 131 is arranged convex
Edge, so that the first end 1311 of shield 131 can move to outside through cavities, and second end 1312 is due to the effect of flange
It is held in through cavities.
Referring to figure 2., anti-acupuncture needle header structure 100 is before use, shield 131 is linked together with needle stand 110,
At this point, the point of needle main body 120 is the installing port 131a for stretching out shield 131, its normal use is not influenced.Optionally,
In order to avoid needle main body 120 stabs medical worker or other staff before use, protective case can be arranged outside needle main body 120
121, wherein one end of protective case 121 is supported with needle stand 110, and the other end of protective case 121 passes through installing port 131a.In use,
Directly protective case 121 can be removed.In addition, it is necessary to explanation, when elastic telescopic part 132 is using spring, spring is
It is set in outside protective case 121.
Fig. 1 and Fig. 6 are please referred to, after use, when needing to protect by needle main body 120, rotation shield 131 to prevent
Shield 131 and needle stand 110 are detached from, at this time due to the restoring force of elastic telescopic part 132, so that shield 131 is by bullet to far from needle
One end of seat 110, the first end 1311 of shield 131 move to outside through cavities, and the second end 1312 of shield 131 can block
It holds in through cavities, the receiving of the inner space of shield 131 and the through cavities of protection main body 133 as needle main body 120
Space, shield 131 and protection main body 133 cover needle main body 120, to avoid the needle pricks people of needle main body 120.
It should be noted that the axial length of shield 131 and the axial length of protection main body 133 are needed according to needle main body
120 length is designed, so that shield 131 and protection main body 133 can cover needle main body 120, avoids needle master
The point of body 120 exposes.Its specific length, the present embodiment are not construed as limiting it, as long as meeting shield 131 and protection master
Body 133 can cover needle main body 120.In addition, the axial length of the protection main body 133 at this refers to shield 131
After being detached from needle stand 110, the axial length of shield 131 and protection main body 133 when covering needle main body 120, i.e., the institute in Fig. 6
Show, is L1.
In a kind of specific embodiment, protection main body 133 includes fixed protection part 1331 and at least one protection body,
Wherein one, two or more can be set in protection body.Fixed protection part 1331 has opposite third end 133a and the 4th
It holds 133b, the third end 133a of fixed protection part 1331 to connect with needle stand 110, has inside fixed protection part 1331 and run through third
Hold the first through cavities of 133a and the 4th end 133b.When unused needle main body 120 is operated, at least one protection body is set
It is placed in the first through cavities, and the lower end of at least one protection body can pass through the 4th end 133b of fixed protection part 1331,
The upper end of at least one protection body can be held in the first through cavities.The inside of at least one protection body has second to run through
The first end 1311 of cavity, shield 131 can move to outside the second through cavities, and the second end 1312 of shield 131 can
It is held in the second through cavities.
When needing to protect by needle main body 120, rotation shield 131 is detached from shield 131 and needle stand 110,
Due to the restoring force of elastic telescopic part 132 so that shield 131 by bullet to one end far from needle stand 110, the of shield 131
One end 1311 moves to outside the second through cavities, and the second end 1312 of shield 131 can be held in the second through cavities.This
When due to inertia force act on, when shield 131 in the process of movement, since the second end 1312 of shield 131 is stuck in second
In through cavities, then shield 131 will drive the relatively fixed protector 1331 of protection body and move, until the upper end clamping of protection body
In the inner wall of fixed protection part 1331, the upper end of protection body is fixed in the first through cavities.The inner space of shield 131 and
Second through cavities of protection body and the first through cavities of fixed protection part 1331 become the accommodation space of needle main body 120,
Shield 131, fixed protection part 1331 and protection body cover needle main body 120, to avoid the needle pricks of needle main body 120
People.
In addition, protection body counter motion (moving to the direction A) is passed through to first in order to prevent after covering needle main body 120
Better protective action cannot be played in transluminal body, the upper end of at least one protection body is provided with elastic piece 151, elastic piece 151
Top and protection body upper end between there is gap so that elastic piece 151 can pass through the of fixed protection part 1331
After four end 133b and it is held in the periphery of fixed protection part 1331.When elastic piece 151 supports the periphery in fixed protection part 1331
Afterwards, then protection body cannot counter motion again.
The present embodiment is specifically described by taking two protection bodies as an example, please refers to Fig. 1-Fig. 6, when being set as more,
It can be analogized.
When protection body is set as two, two protection bodies are respectively the first protection body 1332 and the second protection body 1333,
First protection body 1332 is arranged closer to fixed protection part 1331.Wherein, the first protection body 1332 is set to the first through cavities
Interior, one end of the first protection body 1332 can pass through the 4th end 133b of fixed protection part 1331, the first protection body 1332 it is another
One end can be held in the first through cavities.Specifically, it can be arranged such that, the upper-end inner diameter of fixed protection part 1331 is greater than
Flange can be set in the upper end of the internal diameter of its lower end, the first protection body 1332, so that the lower end of the first protection body 1332 can
Across the 4th end 133b of fixed protection part 1331, the upper end of the first protection body 1332 can be held in the first through cavities.
Alternatively, the internal diameter that the upper end of fixed protection part 1331 also can be set into is greater than the internal diameter of its lower end, the first protection body 1332
The outer diameter of upper end is less than the outer diameter of its lower end, it is also possible that the lower end of the first protection body 1332 can pass through fixed protection part
The upper end of 1331 the 4th end 133b, the first protection body 1332 can be held in the first through cavities.
The inside of first protection body 1332 has the first sub- through cavities, and the second protection body 1333 in two protection bodies is set
It is placed in the first sub- through cavities, one end of the second protection body 1333 can pass through one end of the second protection body 1333, and second is anti-
The other end of watch box 1333 can be held in the first sub- through cavities.Specifically, it can be arranged such that, the first protection body 1332
Upper-end inner diameter be greater than its lower end internal diameter, flange can be set in the upper end of the second protection body 1333, so that the second protection body
1333 lower end can pass through the 4th end 133b of fixed protection part 1331, and the upper end of the second protection body 1333 can be held in the
In one sub- through cavities.Alternatively, the internal diameter that the upper end of the first protection body 1332 also can be set into is greater than the internal diameter of its lower end,
The outer diameter of the upper end of second protection body 1333 is less than the outer diameter of its lower end, it is also possible that the second protection body 1333
Lower end can pass through the lower end of the first protection body 1332, and the upper end of the first protection body 1332 can be held in the first sub- through cavities
It is interior.
The inside of second protection body 1333 has the second sub- through cavities, and the first end 1311 of shield 131 can move
To outside the second sub- through cavities, the second end 1312 of shield 131 can be held in the second sub- through cavities.
In addition, as shown in fig. 6, in order to prevent 1333 counter motion of the first protection body 1332 and the second protection body respectively, originally
The upper end of first protection body 1332 of embodiment is provided with elastic piece 151, the top of the elastic piece 151 of the first protection body 1332 with
There is gap, and the elastic piece 151 of the first protection body 1332 can be held in fix and prevent between the upper end of first protection body 1332
The periphery of guard 1331.The upper end of second protection body 1333 is provided with elastic piece 151, the elastic piece 151 of the second protection body 1333
Top and the second protection body 1333 upper end between there is gap, and the elastic piece 151 of the second protection body 1333 can support
In the periphery of the first protection body 1332.
Further, the second end 1312 of 131 counter motion of shield in order to prevent, shield 131 is provided with elastic piece
151, there is gap, the bullet of second end 1312 between the top of the elastic piece 151 of second end 1312 and the end of second end 1312
Property piece 151 can be pierced by protection main body 133 and be held in protection main body 133 periphery.Specifically, the elastic piece of second end 1312
151 can be pierced by the second protection body 1333 and be held in the periphery of the second protection body 1333.
Further, in the present embodiment, protection main body 133 be set in shield 131 it is outer when, the first of shield 131
End 1311 is outside through cavities.In a kind of possible scheme, when protection main body 133 includes fixed protection part 1331 and protection
When body, when fixed protection part 1331 and protection body are in the relationship being arranged (as shown in Figure 2), the entirety of the protection presentation of main body 133
Axial length be L2, the axial length of shield 131 is L3, wherein L3 is greater than L2.In order to facilitate understanding, the present embodiment will
It is operation portion 1314 that shield 131, which is located at the part names outside through cavities,.When specific operation, can by finger or its
His instrumental purpose rotates shield 131 and disengages it from needle stand 110 in operation portion 1314, to finally reach protection needle main body 120
Effect.Optionally, the raised tread plate 131c of the outer wall of the operation portion 1314, when specific operation, tread plate 131c
Anti-skidding effect can be played.
The anti-acupuncture needle header structure 100 of the present embodiment can also be arranged gear ring 140, the inner wall of gear ring 140 can with it is anti-skidding
131c engagement, gear ring 140 can be sheathed on the outside of operation portion 1314.Gear ring 140 is sheathed on to the outer wall of operation portion 1314
So that the inner wall of gear ring 140 is engaged with tread plate 131c, rotation gear ring 140 may make shield 131 to rotate, operate compared with
It is convenient.
The present embodiment also provides a kind of needling prevention injector 10, please refers to Fig. 7 comprising syringe 210, piston 220 and
Above-mentioned anti-acupuncture needle header structure 100.Piston 220 is set to 210 inner space of syringe and can move with respect to syringe 210,
In, needle stand 110 is connect with the end of syringe 210, and the hollow inside of needle main body 120 is connected to the inner space of syringe 210, with
The liquid such as the drug in syringe 210 are enabled to be injected into human body or animal by needle main body 120.It should be noted that anti-needle
Pricker header structure 100 not only applies to syringe, can be used for other medical instruments, such as remaining needle etc..
The working principle of the needling prevention injector 10 of the present embodiment:
After carrying out injection drug or other liquid using needling prevention injector 10, need to protect needle main body 120.
At this point, rotation shield 131 can then make shield 131 and needle stand 110 be detached from, at this time due to the elasticity of elastic telescopic part 132
Restoring force so that shield 131 by bullet to far from needle stand 110 one end, the first end 1311 of shield 131 move to second son
Outside through cavities, the second end 1312 of shield 131 can be held in the second sub- through cavities.At this time due to inertia masterpiece
With, when shield 131 in the process of movement, since the second end 1312 of shield 131 is stuck in the second sub- through cavities, then
Shield 131 will drive opposite first protection body 1332 of the second protection body 1333 and move, until the upper end of the second protection body 1333
It is held in the inner wall of the first protection body 1332, the upper end of the second protection body 1333 is fixed in the first sub- through cavities.Second
During protection body 1333 moves, the second protection body 1333 drives the relatively fixed protector 1331 of the first protection body 1332 to transport
Dynamic, until the upper end of the first protection body 1332 is held in the inner wall of fixed protection part 1331, the upper end of the first protection body 1332 is solid
It is scheduled in the first through cavities.The inner space of shield 131, the second sub- through cavities of the second protection body 1333, first prevent
The receiving that the sub- through cavities of the first of watch box 1332 and the first through cavities of fixed protection part 1331 become needle main body 120 is empty
Between, shield 131, fixed protection part 1331 and the first protection body 1332, the second protection body 1333 cover needle main body 120, from
And avoid the needle pricks people of needle main body 120.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of anti-acupuncture needle header structure, characterized in that it comprises: needle stand, needle main body and anti-acupuncture group part, the needle master
Body is inserted in the needle stand；
The anti-acupuncture group part includes shield, elastic telescopic part and protection main body, and the inside of the shield has installation empty
Chamber, and the first end of the shield has the installing port being connected to the installation cavity, the shield and the needle stand spiral shell
Line connection；The needle main body is arranged in the installing port and the installation cavity；The protection body interior has through cavities,
One end of the protection main body is connect with the needle stand, and the protection main body is set in the outside of the shield；
The both ends of the elastic telescopic part are held in the first end of the needle stand and the shield, the elasticity respectively
Extensible member has so that the trend that the shield moves in the through cavities；
The first end of the shield can move to outside the through cavities, and the second end of the shield being capable of clamping
In the through cavities, so that the shield and the protection main body can cover the needle main body.
2. anti-acupuncture needle header structure according to claim 1, which is characterized in that the protection main body is set in the protection
The first end of the shield is outside the through cavities when covering outer.
3. anti-acupuncture needle header structure according to claim 2, which is characterized in that the shield is located at the through cavities
External part is operation portion, the raised tread plate of the outer wall of the operation portion.
4. anti-acupuncture needle header structure according to claim 3, which is characterized in that the anti-acupuncture needle header structure further includes tooth
Circle, the inner wall of the gear ring can be engaged with the tread plate, and the gear ring can be sheathed on the outside of the operation portion.
5. anti-acupuncture needle header structure according to claim 1-4, which is characterized in that the protection main body includes solid
Determine protector and at least one protection body, the fixed protection part has opposite third end and the 4th end, the fixed protection
There is the first through cavities through the third end and the 4th end inside part；
The third end of the fixed protection part is connect with the needle stand, at least one described protection body is set to described first
In through cavities, and one end of at least one protection body can pass through the 4th end of the fixed protection part, described
The other end of at least one protection body can be held in the first through cavities；
The inside of at least one protection body has the second through cavities, and the first end of the shield can move to
Outside second through cavities, the second end of the shield can be held in second through cavities.
6. anti-acupuncture needle header structure according to claim 5, which is characterized in that the other end of at least one protection body
It is provided with elastic piece, the elastic piece can pass through the 4th end of the fixed protection part and be held in the fixed protection
The periphery of part.
7. anti-acupuncture needle header structure according to claim 5, which is characterized in that there are two the protection body settings, and two
The first protection body in the protection body is set in first through cavities, and one end of first protection body can pass through
The 4th end of the fixed protection part, the other end of first protection body can be held in the first through cavities；
The inside of first protection body has the first sub- through cavities, and the second protection body in two protection bodies is set to
In the first sub- through cavities, one end of second protection body can pass through one end of second protection body, and described the
The other end of two protection bodies can be held in the first sub- through cavities；
The inside of second protection body has the second sub- through cavities, and the first end of the shield can move to institute
It states outside the second sub- through cavities, the second end of the shield can be held in the described second sub- through cavities.
8. anti-acupuncture needle header structure according to claim 7, which is characterized in that the other end of first protection body is arranged
Flexible, and the elastic piece of first protection body can be held in the periphery of the fixed protection part；
One end of second protection body is provided with elastic piece, and the elastic piece of second protection body can be held in described
The periphery of one protection body.
9. anti-acupuncture needle header structure according to claim 1-4, which is characterized in that the second end of the shield
It is provided with elastic piece, the elastic piece of the second end can be pierced by the protection main body and be held in the week of the protection main body
Edge.
10. a kind of needling prevention injector, which is characterized in that including any one of syringe and claim the 1-9 anti-acupuncture needle
Header structure, the needle stand are connect with the end of the syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910056330.5A CN109513072A (en) | 2019-01-21 | 2019-01-21 | Anti- acupuncture needle header structure and needling prevention injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910056330.5A CN109513072A (en) | 2019-01-21 | 2019-01-21 | Anti- acupuncture needle header structure and needling prevention injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109513072A true CN109513072A (en) | 2019-03-26 |
Family
ID=65799633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910056330.5A Pending CN109513072A (en) | 2019-01-21 | 2019-01-21 | Anti- acupuncture needle header structure and needling prevention injector |
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| Country | Link |
|---|---|
| CN (1) | CN109513072A (en) |
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| CN2810629Y (en) * | 2005-07-29 | 2006-08-30 | 陈庆强 | Anti-accidental injury injection needle |
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