CN108926754A - Injector for medical purpose with flexible stripping ring - Google Patents
Injector for medical purpose with flexible stripping ring Download PDFInfo
- Publication number
- CN108926754A CN108926754A CN201810881877.4A CN201810881877A CN108926754A CN 108926754 A CN108926754 A CN 108926754A CN 201810881877 A CN201810881877 A CN 201810881877A CN 108926754 A CN108926754 A CN 108926754A
- Authority
- CN
- China
- Prior art keywords
- housing
- stripping ring
- injection needle
- injector
- cone joint
- 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
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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—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
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/19—Constructional features of carpules, syringes or blisters
Abstract
A kind of injector for medical purpose of the flexible stripping ring of band, it is greater than the technical characteristic of the outer diameter of the internal diameter of the front of elastic stripping ring and the cone joint of housing using the internal diameter at the rear portion of elastic stripping ring, technical solution between the back cover portion and injection needle of housing is located at using elastic stripping ring and forms the injector for medical purpose that anti-needle of the invention is stabbed, it realizes when the rear portion of the elastic stripping ring on the cone joint of housing is radially pinched flat, the rear end of the elastic stripping ring of flexible deformation is against in the back cover portion of housing and moves along back cover portion, the front end of the elastic stripping ring of flexible deformation, which is against on the rear end of injection needle, pushes injection needle to move forward, so that injection needle is detached from the cone joint of housing.The technical effect of injection needle will not be touched in operation by reaching the injector for medical purpose that anti-needle is stabbed, so that the injection needle to carry disease germs be avoided to cause harm to the human body.Covering the elastic stripping ring on the cone joint of housing will not influence the injection operation for the injector for medical purpose that anti-needle is stabbed, and also not increase injection operation step.
Description
Technical field
The present invention relates to various injector for medical purpose, are related specifically to various disposable sterilized syringes, also especially
It is related to various glass injector for medical purpose, is also related specifically to various metal injector for medical purpose, relates more specifically to various anti-needles
The disposable sterilized syringe stabbed also relates more specifically to the glass injector for medical purpose stabbed to various anti-needles, also more special
It is not related to the metal injector for medical purpose that various anti-needles are stabbed.
Background technique
Various injector for medical purpose can be used for injecting and exporting various liquid, can be used for aspirating various liquid, may be used also
Can be also used for flushing or cleaning of objects for mixing various liquid or mixing various liquid with powder.It is various medical
After plugging injection needle on the conehead of syringe, various medicaments can be injected into human body or the subcutaneous of animal, muscle, blood vessel or its
In his histoorgan, various liquid can also be aspirated out of human body or the histoorgan of animal.
Conventional injector for medical purpose includes housing and core bar.It is cased with housing cavity outside.Housing cavity is respectively before housing
Open rearward end.There are back cover portion and cone joint in the front of housing.Cone joint is located at the front end in back cover portion.It is various disposable
The housing of asepsis injector generally uses the back cover portion on circular cone inclined-plane or the back cover portion of spherical surface.Various glass injector for medical purpose and gold
The housing for belonging to injector for medical purpose generally uses the back cover portion of plane.Cone joint can be the cone joint of middle hair style, can also be with
For the cone joint of inclined hair style.There is cone head hole in cone joint.Cone head hole and housing cavity penetrate through.It can on the cone joint of housing
Injection needle is installed.There is housing crimping at the rear portion of housing.Housing can have enough transparencies.It can be on the outer surface of housing
There is volume scale.The rear end of core bar has by hand, and front can have sealing ring.Core bar is inserted into housing from housing cavity open rearward end
After in cavity, manipulate core bar can be such that core bar is moved forward and backward in housing cavity by hand.The outer wall of sealing ring and housing cavity
Inner wall forms the sealing cooperation of injector for medical purpose.
The unsatisfactory place of conventional injector for medical purpose is, after injector for medical purpose use, the injection needle to carry disease germs it is exposed
Outside, it easily causes harm to the human body, also, since the connection of the cone joint of syringe needle and the housing of syringe is tighter, both hands are shed
The syringe needle of the injection needle to carry disease germs and the movement for returning the syringe needle for the injection needle that set sheath closure carries disease germs are to cause medical staff that needle occurs
The most high-risk movement stabbed.World Health Organization was in a studies have shown that 2010 carried out using latest data in 2014, due to not
Safety injection, estimation up to 1,700,000 people have infected hepatitis B, and up to 31.5 ten thousand people have infected Hepatitis C Virus, up to
33800 people have infected AIDS virus, and therefore, World Health Organization urges various countries all to use new " intelligence " syringe instead to the year two thousand twenty.
World Health Organization provides detailed suggestion in the injection safety new guidance and policy of publication on 2 23rd, 2015, wherein suggesting infusing
Safety device is set in emitter to prevent healthcare workers from turn resulting in infection by needlestick injuries.
The injector for medical purpose that a kind of anti-needle introduced in United States Patent (USP) US20060052748A1 is stabbed, in injector for medical purpose
The front of housing have the injection needle housing hinged with housing.When in use, injection needle housing is turned at housing, to appear injection
Needle.After use, then by injection needle housing it is turned at injection needle, injection needle is covered, to avoid the injection needle to carry disease germs to human body
It damages.The medical injection that a kind of anti-needle introduced in United States Patent (USP) US20150182704A1 and US20160367762A1 is stabbed
Emitter, injector for medical purpose have the injection needle housing that can be moved forward and backward on the periphery of housing.When in use, injection needle is covered on into housing
Periphery on move backward, to appear injection needle.After use, then injection needle is covered on the periphery of housing and moves forward to note
It penetrates at needle, injection needle is covered, caused harm to the human body to avoid the injection needle to carry disease germs.The medical injection that above two anti-needle is stabbed
The unsatisfactory place of the first of emitter is, the part of the injector for medical purpose that anti-needle is stabbed than conventional injector for medical purpose part more
Mostly more complicated, assembly is also more difficult, therefore cost is higher.It is stabbed according to the investigation of World Health Organization, the anti-needle with injection needle housing
The cost of injector for medical purpose is twice or more of the cost of conventional injector for medical purpose.The medical injection that above two anti-needle is stabbed
The unsatisfactory place of second of device is that injection needle housing increases injection operation step, also, injection needle housing on the coat can shadow
The injection operation for ringing the injector for medical purpose that anti-needle is stabbed, be easy to cause operation error.The medical injection that above two anti-needle is stabbed
The third unsatisfactory place of device is the injector for medical purpose of the plastics for the injector for medical purpose that anti-needle is stabbed and the injection needle of metal
It is fixed together, before use, the injection needle of other specifications can not be replaced；Overall volume after use is larger, to subsequent pin
It ruins processing to make troubles, also, can not be by plastic material and metal material classification recovery processing.The doctor that above two anti-needle is stabbed
It is that injection is installed on various glass injector for medical purpose and metal injector for medical purpose with the 4th kind of unsatisfactory place of syringe
The cost of needle housing is higher, and sterilizing is extremely difficult to before use and is required.
By above-mentioned it will be clear that well known injector for medical purpose also needs to be improved further, so that injector for medical purpose
Cost it is lower, injector for medical purpose convenience more secure when used, injector for medical purpose is easier to recycle or destroy after.
Summary of the invention
The first object of the present invention is to propose a kind of injector for medical purpose of flexible stripping ring of band, using elastic stripping ring
Rear portion internal diameter be greater than elastic stripping ring front internal diameter and housing cone joint outer diameter technical characteristic, using bullet
Property stripping ring is located at the technical solution between the back cover portion and injection needle of housing and forms the medical injection that anti-needle of the invention is stabbed
Device realizes the elastic stripping ring of flexible deformation when the rear portion of the elastic stripping ring on the cone joint of housing is radially pinched flat
Rear end be against in the back cover portion of housing and moved along back cover portion, after the front end of the elastic stripping ring of flexible deformation is against injection needle
Injection needle is pushed to move forward on end, so that injection needle is detached from the cone joint of housing.Reach the injector for medical purpose that anti-needle is stabbed
The technical effect of injection needle will not be touched in operation, so that the injection needle to carry disease germs be avoided to cause harm to the human body.
Covering the elastic stripping ring on the cone joint of housing will not influence the injection operation for the injector for medical purpose that anti-needle is stabbed, and also not increase
Operating procedure is penetrated in filling.
The second object of the present invention is to propose a kind of injector for medical purpose of flexible stripping ring of band, so that anti-needle was stabbed
The only elasticity disassembly covered on the cone joint of housing more than the part of conventional injector for medical purpose of the part of injector for medical purpose
Ring.The cost of elastic stripping ring is lower than the 5% of the cost for the injector for medical purpose that anti-needle is stabbed, assembles also very convenient.Elasticity disassembly
Ring can above elastic stripping ring be set directly on the cone joint of the housing of conventional various disposable sterilized syringes
Constitute the disposable sterilized syringe that anti-needle is stabbed.The disposable sterilized syringe that anti-needle is stabbed, before use,
The injection needle of other specifications can be replaced；It after use, can be by the injector for medical purpose of the metal injection needle and plastics that carry disease germs point
Class is put into collecting box, by plastic material and metal material classification recovery processing or subsequent is destroyed.Conventional various glass
Injector for medical purpose and metal injector for medical purpose can carry out conventional cleaning, sterilization treatment using preceding, when in use in housing
Cone joint on put on elastic stripping ring constitute the glass injector for medical purpose that anti-needle is stabbed and the metal that anti-needle is stabbed doctor
With syringe, elastic stripping ring and injection needle are destroyed after use.The injector for medical purpose stabbed due to anti-needle of the invention
Conventional various disposable sterilized syringes, various glass injector for medical purpose or various metal medical injections can be used directly
Conventional housing, core bar and injection needle in device, therefore the technology and equipment of existing processing, assembly and packaging can be directly used,
To reduce product cost, also, conventional injection needle is not influenced and can be not only used for the various medical injections with outer cone locked joints
Emitter can be used for various injector for medical purpose without outer cone locked joints again.
The purpose of the present invention is what is be achieved through the following technical solutions:
Injector for medical purpose with flexible stripping ring of the invention includes housing and core bar.The front of housing have back cover portion and
Cone joint.Cone joint is located at the front end in back cover portion.The housing of various disposable sterilized syringes generally uses circular cone
The back cover portion on inclined-plane or the back cover portion of spherical surface.The housing of various glass injector for medical purpose and metal injector for medical purpose is generally using flat
The back cover portion in face.It is cased with housing cavity outside.The housing cavity end opening before and after housing respectively.The cone joint of housing can be
The cone joint of middle hair style, or the cone joint of inclined hair style.There is cone head hole in cone joint.Cone head hole and housing cavity
Perforation.There is housing crimping at the rear portion of housing.There can be volume scale on the outer surface of housing.
The rear end of core bar has by hand, and front can have sealing ring.Core bar is inserted into housing sky from housing cavity open rearward end
After intracavitary, manipulate core bar can be such that core bar is moved forward and backward in housing cavity by hand.Monoblock type can be made with core bar in sealing ring,
It can also be made with core bar split type.The sealing that the outer wall of sealing ring and the inner wall of housing cavity form injector for medical purpose cooperates.
It can be inserted on the cone joint of the housing of the injector for medical purpose with flexible stripping ring of the first scheme of the invention
Upper injection needle and elastic stripping ring.Elastic stripping ring, which is located at, forms anti-needle thorn of the invention between the back cover portion and injection needle of housing
The injector for medical purpose of wound.The internal diameter at the rear portion of elastic stripping ring is greater than the internal diameter of front of elastic stripping ring and the circular cone of housing connects
The outer diameter of head.Elastic stripping ring can be moved forward and backward on the cone joint of housing.When the elasticity disassembly on the cone joint of housing
When the rear portion of ring is radially pinched flat, the rear end of the elastic stripping ring of flexible deformation is against in the back cover portion of housing to be moved along back cover portion
Dynamic, the front end of the elastic stripping ring of flexible deformation, which is against on the rear end of injection needle, pushes injection needle to move forward, so that injection needle
It is detached from the cone joint of housing.
In the front of the elastic stripping ring of the injector for medical purpose with flexible stripping ring of the first scheme of the invention
Diameter can be less than the outer diameter of the cone joint of housing.The circle of housing is inserted in after the inside diameter elastomeric deformation of the front of elastic stripping ring
When on taper joint, elastic stripping ring is constrained on the cone joint of housing, needs elastic stripping ring ability under the effect of external force
It can be moved forward and backward on the cone joint of housing.
There can be circle in the back cover portion of the housing of the injector for medical purpose of the first flexible stripping ring of scheme band of the invention
Bore inclined-plane.When the rear portion of the elastic stripping ring on the cone joint of housing is radially pinched flat, the elastic stripping ring of flexible deformation
Rear end be against the circular cone inclined-plane in the back cover portion of housing in back cover portion and move, the front end of the elastic stripping ring of flexible deformation is supported
Injection needle is pushed to move forward on the rear end of injection needle, so that injection needle is detached from the cone joint of housing.
It can be inserted on the cone joint of the housing of the injector for medical purpose with flexible stripping ring of second scheme of the invention
Upper injection needle and elastic stripping ring form the injector for medical purpose that anti-needle of the invention is stabbed.The front of elastic stripping ring uses bayonet
It connects and fixes and is mounted on the locked joints at the rear portion of injection needle.The internal diameter at the rear portion of elastic stripping ring is greater than elastic stripping ring
The outer diameter of the cone joint of the internal diameter and housing of front.
When injection needle is inserted on the cone joint of housing, injection needle is connected on the cone joint of housing, and elasticity is torn open
Ring is unloaded to be located between the back cover portion and injection needle of housing.When the rear portion for being mounted on injection needle elastic stripping ring rear portion by radial direction
When pinching flat, the rear end of the elastic stripping ring of flexible deformation is against in the back cover portion of housing and moves along back cover portion, the bullet of flexible deformation
Property stripping ring front end be against on the rear end of injection needle push injection needle move forward so that injection needle be detached from housing circular cone connect
Head.
Can have in the back cover portion of the housing of the injector for medical purpose with flexible stripping ring of second scheme of the invention
Circular cone inclined-plane.When the rear portion of the elastic stripping ring on the cone joint of housing is radially pinched flat, the elasticity disassembly of flexible deformation
The rear end of ring is against the circular cone inclined-plane in the back cover portion of housing in back cover portion and moves, the front end of the elastic stripping ring of flexible deformation
Being against on the rear end of injection needle pushes injection needle to move forward, so that injection needle is detached from the cone joint of housing.
Detailed description of the invention
Fig. 1 is the outside drawing for indicating the injector for medical purpose with flexible stripping ring of first embodiment of the invention；
Fig. 2 is that indicate that the rear portion of the elastic stripping ring of the injector for medical purpose with flexible stripping ring of Fig. 1 is radially pinched flat
When injection needle move forward after outside drawing；
Fig. 3 is the front view for indicating the injector for medical purpose with flexible stripping ring of Fig. 1；
Fig. 4 is the 3-3 cross-sectional view for indicating Fig. 3；
Fig. 5 is the front view for indicating the injector for medical purpose with flexible stripping ring of Fig. 2；
Fig. 6 is the 5-5 cross-sectional view for indicating Fig. 5；
Fig. 7 is the outside drawing for indicating the housing and core bar of Fig. 1；
Fig. 8 is the outside drawing for indicating the injection needle of Fig. 1；
Fig. 9 is the outside drawing for indicating the elastic stripping ring of Fig. 1；
Figure 10 is the outside drawing indicated when the rear portion of the elastic stripping ring of Fig. 2 is radially pinched flat；
Figure 11 is the outside drawing for indicating the injector for medical purpose with flexible stripping ring of second embodiment of the invention；
Figure 12 is to indicate that the rear portion of the elastic stripping ring of the injector for medical purpose with flexible stripping ring of Figure 11 is radially pinched
Outside drawing after injection needle moves forward when flat；
Figure 13 is to indicate the elastic stripping ring of Figure 11 using on the locked joints for connecting and fixing the rear end for being mounted on injection needle
When outside drawing；
Figure 14 is the outside drawing for indicating the elastic stripping ring of Figure 13；
Figure 15 is the elastic stripping ring connected and fixed on the locked joints for being mounted on the rear end of injection needle for indicating Figure 12
Outside drawing when rear portion is radially pinched flat；
Figure 16 is to indicate outside drawing when the rear portion of the elastic stripping ring of Figure 15 is radially pinched flat；
Figure 17 is the outside drawing for indicating the injector for medical purpose with flexible stripping ring of third embodiment of the invention；
Figure 18 is to indicate that the rear portion of the elastic stripping ring of the injector for medical purpose with flexible stripping ring of Figure 17 is radially pinched
Outside drawing after injection needle moves forward when flat；
Figure 19 is the front view for indicating the injector for medical purpose with flexible stripping ring of Figure 17；
Figure 20 is the 19-19 cross-sectional view for indicating Figure 19；
Figure 21 is the front view for indicating the injector for medical purpose with flexible stripping ring of Figure 18；
Figure 22 is the 21-21 cross-sectional view for indicating Figure 21；
Figure 23 is the outside drawing for indicating the housing and core bar of Figure 17；
Figure 24 is the outside drawing for indicating the injection needle of Figure 17；
Figure 25 is the outside drawing for indicating the elastic stripping ring of Figure 17；
Figure 26 is the outside drawing indicated when the rear portion of the elastic stripping ring of Figure 18 is radially pinched flat.
Specific embodiment
Way of example is used below, and the best reality of the injector for medical purpose of the invention with flexible stripping ring is stated in conjunction with attached drawing
Apply example.The scope of the present invention will be indicated in the claims.It should be appreciated that some or all attached drawing is provided to illustrate this hair
Bright most preferred embodiment illustrates schematic diagram, and does not depict the full-size(d) of shown part.With reference to the detailed of most preferred embodiment
Narration, it will be more clearly understood and reach above-mentioned and other objects and advantages the practical ways of the present invention.In attached drawing and
In following description, term " rear " refers to close to the position of injector for medical purpose operator, and term " preceding " refers to far from medical injection
The position of emitter operator.The term in other positions and direction can be further understood with following description with reference to the accompanying drawings.
Fig. 1 to Figure 10 is the injector for medical purpose 61 with flexible stripping ring for indicating first embodiment of the invention.
As shown in Figure 1 and Figure 7, there are housing 62 and core bar 63 in the injector for medical purpose 61 with flexible stripping ring.Housing 62
Front have the cone joint 65 of back cover portion 64 and middle hair style.Cone joint 65 is located at the front end in back cover portion 64.Core bar 63 is from outer
After covering in the opening insertion housing 62 of 62 rear ends, core bar 63 can be manipulated and be moved forward and backward in housing 62.With flexible stripping ring
Injector for medical purpose 61 can be the disposable sterilized syringe that anti-needle is stabbed.
Injection needle 66 and elastic stripping ring 67 can be plugged on the cone joint 65 of housing 62.Elastic stripping ring 67 is located at housing
(see Fig. 1, Fig. 3, Fig. 4 and Fig. 9) between 62 back cover portion 64 and injection needle 66.The internal diameter at the rear portion 68 of elastic stripping ring 67 is greater than
The outer diameter of the cone joint 65 of the internal diameter and housing 62 of the front 69 of elastic stripping ring 67.Elastic stripping ring 67 can be in housing 62
It is moved forward and backward on cone joint 65.There is circular cone inclined-plane 70 in the back cover portion 64 of housing 62 (see Fig. 7).
When the rear portion of the elastic stripping ring 67 on the cone joint 65 of housing 62 is radially pinched flat, the elasticity of flexible deformation
The rear end of stripping ring 67 is against the circular cone inclined-plane 70 in the back cover portion 64 of housing 62 in back cover portion 64 and moves, the bullet of flexible deformation
Property stripping ring 67 front end be against on the rear end of injection needle 66 push injection needle 66 move forward so that injection needle 66 be detached from housing
62 cone joint 65 (see Fig. 2, Fig. 5, Fig. 6 and Figure 10).
The internal diameter of the front 69 of elastic stripping ring 67 is less than the outer diameter of the cone joint 65 of housing 62.When elastic stripping ring 67
Front 69 inside diameter elastomeric deformation after when being inserted on the cone joint 65 of housing 62, elastic stripping ring 67 is constrained on housing 62
Cone joint 65 on, need under the effect of external force elastic stripping ring 67 just can on the cone joint 65 of housing 62 before move back
Dynamic (see Fig. 1, Fig. 3, Fig. 4 and Fig. 9).
Figure 11 to Figure 16 is the injector for medical purpose 71 with flexible stripping ring for indicating second embodiment of the invention.
As seen in figs. 7 and 11, there are housing 62 and core bar 63 in the injector for medical purpose 71 with flexible stripping ring.Housing 62
Front have the cone joint 65 of back cover portion 64 and middle hair style.Cone joint 65 is located at the front end in back cover portion 64.Core bar 63 is from outer
After covering in the opening insertion housing 62 of 62 rear ends, core bar 63 can be manipulated and be moved forward and backward in housing 62.
Injection needle 66 can be plugged on the cone joint 65 of housing 62.As shown in Fig. 8, Figure 11 to Figure 16, elastic stripping ring 72
Front 73 connect and fix and be mounted on the locked joints 76 at the rear portion of injection needle 75 using bayonet 74.After elastic stripping ring 72
The internal diameter in portion 77 is greater than the outer diameter of the internal diameter of the front 73 of elastic stripping ring 72 and the cone joint 65 of housing 62.
When injection needle 75 is inserted on the cone joint 65 of housing 62, injection needle 75 is connected the cone joint of housing 62
On 65, elastic stripping ring 72 is located between the back cover portion 64 and injection needle 75 of housing 62 (see Figure 11, Figure 13 and Figure 14).Work as installation
When the rear portion 77 of the elastic stripping ring 72 at the rear portion of injection needle 75 is radially pinched flat, after the elastic stripping ring 72 of flexible deformation
End is against in the back cover portion 64 of housing 62 moves along back cover portion 64, and the front of the elastic stripping ring 72 of flexible deformation is against injection needle
Injection needle 75 is pushed to move forward on 75 rear end, so that injection needle 75 is detached from the cone joint 65 of housing 62 (see Figure 12, Figure 15
And Figure 16).
Figure 17 to Figure 26 is the injector for medical purpose 81 with flexible stripping ring for indicating third embodiment of the invention.
As shown in Figure 17 and Figure 23, there are housing 82 and core bar 83 in the injector for medical purpose 81 with flexible stripping ring.Housing
There is the cone joint 85 of back cover portion 84 and middle hair style in 82 front.The back cover portion 84 of housing 82 is in plane.Cone joint 85 is located at
The front end in back cover portion 84.After core bar 83 is out of the opening of 82 rear end of housing insertion housing 82, core bar 83 can be manipulated in housing 82
Interior back-and-forth motion.Injector for medical purpose 81 with flexible stripping ring can be the glass injector for medical purpose that anti-needle is stabbed or anti-needle thorn
The metal injector for medical purpose of wound.
Injection needle 86 and elastic stripping ring 87 can be plugged on the cone joint 85 of housing 82.Elastic stripping ring 87 is located at housing
(see Figure 17) between 82 back cover portion 84 and injection needle 86.The internal diameter at the rear portion 88 of elastic stripping ring 87 is greater than elastic stripping ring 87
Front 89 internal diameter and housing 82 cone joint 85 outer diameter (see Figure 25).Elastic stripping ring 87 can be in the circular cone of housing 82
It is moved forward and backward on connector 85.When injection needle 86 and elastic stripping ring 87 are inserted on the cone joint 85 of housing 82, injection needle 86
It is connected on the cone joint 85 of housing 82, elastic stripping ring 87 is located between the back cover portion 84 and injection needle 86 of housing 82
(see Figure 17, Figure 19 and Figure 20).When the rear portion of the elastic stripping ring 87 on the cone joint 85 of housing 82 is radially pinched flat, bullet
Property deformation the rear end of elastic stripping ring 87 be against in the back cover portion 84 of housing 82 and moved along back cover portion 84, the elasticity of flexible deformation
The front end of stripping ring 87, which is against on the rear end of injection needle 86, pushes injection needle 86 to move forward, so that injection needle 86 is detached from housing 82
Cone joint 85 (see Figure 18, Figure 21, Figure 22 and Figure 26).
The internal diameter of the front 89 of elastic stripping ring 87 is less than the outer diameter of the cone joint 85 of housing 82.When elastic stripping ring 87
Front 89 inside diameter elastomeric deformation after when being inserted on the cone joint 85 of housing 82, elastic stripping ring 87 is constrained on housing 82
Cone joint 85 on, need under the effect of external force elastic stripping ring 87 just can on the cone joint 85 of housing 82 before move back
Dynamic (see Figure 17, Figure 19, Figure 20 and Figure 25).
It is discussed in detail according to above-mentioned it is found that the injector for medical purpose of the invention with flexible stripping ring can achieve following skill
Art effect:
Injector for medical purpose with flexible stripping ring of the invention, the internal diameter using the rear portion of elastic stripping ring are greater than elasticity
The technical characteristic of the outer diameter of the cone joint of the internal diameter and housing of the front of stripping ring is located at the envelope of housing using elastic stripping ring
Technical solution between bottom and injection needle forms the injector for medical purpose that anti-needle of the invention is stabbed, and realizes when the circular cone of housing connects
When the rear portion of elastic stripping ring on head is radially pinched flat, the rear end of the elastic stripping ring of flexible deformation is against the back cover portion of housing
On moved along back cover portion, the front end of the elastic stripping ring of flexible deformation, which is against on the rear end of injection needle, pushes injection needle to Forward
It is dynamic, so that injection needle is detached from the cone joint of housing.Reaching the injector for medical purpose that anti-needle is stabbed will not contact in operation
To the technical effect of injection needle, so that the injection needle to carry disease germs be avoided to cause harm to the human body.It covers on the cone joint of housing
Elastic stripping ring will not influence the injection operation of the injector for medical purpose that anti-needle is stabbed, do not increase injection operation step yet.
Injector for medical purpose with flexible stripping ring of the invention, so that the part for the injector for medical purpose that anti-needle is stabbed only compares
The more elastic stripping rings covered on the cone joint of housing of the part of conventional injector for medical purpose.The cost of elastic stripping ring is low
In the 5% of the cost for the injector for medical purpose that anti-needle is stabbed, assemble also very convenient.Elastic stripping ring can be directly in the various of routine
Put on the cone joint of the housing of disposable sterilized syringe elastic stripping ring constitute anti-needle stab it is disposable
Use asepsis injector.The disposable sterilized syringe that anti-needle is stabbed, before use, the injection of other specifications can be replaced
Needle；After use, the injector for medical purpose of the metal injection needle and plastics that carry disease germs can be classified and is put into collecting box, by plastics material
Material and metal material classification recovery processing subsequent are destroyed.Conventional various glass injector for medical purpose and metal medical injection
Emitter can carry out conventional cleaning, sterilization treatment using preceding, cover upper elasticity on the cone joint of housing when in use and tear open
It unloads ring and constitutes the glass injector for medical purpose that anti-needle is stabbed and the metal injector for medical purpose that anti-needle is stabbed, after use at destruction
Manage elastic stripping ring and injection needle.Due to the injector for medical purpose that anti-needle of the invention is stabbed can be used directly it is conventional various primary
Property use housing, core bar and note conventional in asepsis injector, various glass injector for medical purpose or various metal injector for medical purpose
Needle is penetrated, therefore can be directly with the technology and equipment of existing processing, assembly and packaging, to reduce product cost, also, not
Influencing conventional injection needle can be not only used for the various injector for medical purpose with outer cone locked joints, can be used for locking without outer cone again
Determine the various injector for medical purpose of connector.
It will thus be seen that above-mentioned stated target, including by those of shown target described above by effectively
Reach.Described here is only the typical best form of implementation of the present patent application, can make certain changes to above structure
Change also without prejudice to the spirit and scope of the present invention.The present invention is not limited to detail set forth herein, and answers
It is obvious any for retaining for fields secondary technology personnel as stated in the restriction of claim
It improves or retrofits.
Claims (5)
1. a kind of injector for medical purpose of the flexible stripping ring of band, the injector for medical purpose includes housing and core bar；
There are back cover portion and cone joint in the front of the housing, and the cone joint is located at the front end in the back cover portion；
After the core bar is out of the opening of housing rear end insertion housing, core bar can be manipulated and be moved forward and backward in housing；
It is characterized by: injection needle and elastic stripping ring can be plugged on the cone joint of the housing, the elasticity stripping ring position
Between the back cover portion of housing and injection needle, the internal diameter at the rear portion of elastic stripping ring is greater than the interior of the front of elastic stripping ring
The outer diameter of the cone joint of diameter and housing, elastic stripping ring can be moved forward and backward on the cone joint of housing；
When the rear portion of the elastic stripping ring on the cone joint of housing is radially pinched flat, after the elastic stripping ring of flexible deformation
End is against in the back cover portion of housing moves along back cover portion, and the front end of the elastic stripping ring of flexible deformation is against on the rear end of injection needle
Injection needle is pushed to move forward, so that injection needle is detached from the cone joint of housing.
2. the injector for medical purpose of the flexible stripping ring of band according to claim 1, characterized in that the elasticity stripping ring
The internal diameter of front is less than the outer diameter of the cone joint of the housing；It is inserted in after the inside diameter elastomeric deformation of the front of elastic stripping ring
When on the cone joint of housing, elastic stripping ring is constrained on the cone joint of housing, is needed elastic under the effect of external force
Stripping ring can be just moved forward and backward on the cone joint of housing.
3. the injector for medical purpose of the flexible stripping ring of band according to claim 1, characterized in that the back cover portion of the housing
On have circular cone inclined-plane；When the rear portion of the elastic stripping ring on the cone joint of housing is radially pinched flat, elasticity becomes
The rear end of the elastic stripping ring of shape is against in the back cover portion of housing the circular cone inclined-plane in back cover portion and moves, flexible deformation
The front end of elastic stripping ring, which is against on the rear end of the injection needle, pushes injection needle to move forward, so that injection needle is detached from housing
Cone joint.
4. a kind of injector for medical purpose of the flexible stripping ring of band, the injector for medical purpose includes housing and core bar；
There are back cover portion and cone joint in the front of the housing, and the cone joint is located at the front end in the back cover portion；
After the core bar is out of the opening of housing rear end insertion housing, core bar can be manipulated and be moved forward and backward in housing；
It is characterized by: injection needle and elastic stripping ring can be plugged on the cone joint of the housing, the elasticity stripping ring
Front is connected and fixed using bayonet and is mounted on the locked joints at the rear portion of the injection needle, the rear portion of the elasticity stripping ring
Internal diameter is greater than the outer diameter of the internal diameter of the front of elastic stripping ring and the cone joint of housing；When the circular cone that injection needle is inserted in housing connects
When on head, injection needle is connected on the cone joint of housing, and elastic stripping ring is located at the back cover portion and the injection needle of housing
Between；When the rear portion of the elastic stripping ring at the rear portion for being mounted on injection needle is radially pinched flat, the elastic stripping ring of flexible deformation
Rear end be against in the back cover portion of housing and moved along back cover portion, after the front end of the elastic stripping ring of flexible deformation is against injection needle
Injection needle is pushed to move forward on end, so that injection needle is detached from the cone joint of housing.
5. the injector for medical purpose of the flexible stripping ring of band according to claim 4, characterized in that the back cover portion of the housing
On have circular cone inclined-plane；When the rear portion of the elastic stripping ring on the cone joint of housing is radially pinched flat, elasticity becomes
The rear end of the elastic stripping ring of shape is against in the back cover portion of housing the circular cone inclined-plane in back cover portion and moves, flexible deformation
The front end of elastic stripping ring, which is against on the rear end of the injection needle, pushes injection needle to move forward, so that injection needle is detached from housing
Cone joint.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810881877.4A CN108926754A (en) | 2018-08-02 | 2018-08-02 | Injector for medical purpose with flexible stripping ring |
| US16/278,403 US20200038595A1 (en) | 2018-08-02 | 2019-02-18 | Medical syringe for preventing needle-stick injury |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810881877.4A CN108926754A (en) | 2018-08-02 | 2018-08-02 | Injector for medical purpose with flexible stripping ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108926754A true CN108926754A (en) | 2018-12-04 |
Family
ID=64444663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810881877.4A Pending CN108926754A (en) | 2018-08-02 | 2018-08-02 | Injector for medical purpose with flexible stripping ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108926754A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2572981Y (en) * | 2002-10-17 | 2003-09-17 | 刘光奎 | Multipurpose safety syringe |
| CN104399154A (en) * | 2014-11-28 | 2015-03-11 | 解丹 | Disposable sterile syringe comprising protection sleeve tube |
| CN107569745A (en) * | 2017-10-18 | 2018-01-12 | 上海博洽医疗器械有限公司 | The overcoat of safety injector |
-
2018
- 2018-08-02 CN CN201810881877.4A patent/CN108926754A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2572981Y (en) * | 2002-10-17 | 2003-09-17 | 刘光奎 | Multipurpose safety syringe |
| CN104399154A (en) * | 2014-11-28 | 2015-03-11 | 解丹 | Disposable sterile syringe comprising protection sleeve tube |
| CN107569745A (en) * | 2017-10-18 | 2018-01-12 | 上海博洽医疗器械有限公司 | The overcoat of safety injector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU783693B2 (en) | Combination safety needle assembly and medical apparatus | |
| US6730062B2 (en) | Safety catheter with non-removable retractable needle | |
| US5242423A (en) | Needleless syringe | |
| US7316668B2 (en) | Needle shield assembly | |
| US7090656B1 (en) | Medical devices with retractable needle | |
| US7387615B2 (en) | Single use syringe having safety shield | |
| US5593391A (en) | Ampule safety syringe | |
| RU2104716C1 (en) | Self-aspirating ampoule for subcutaneous injections and aspirating piston | |
| JP2016047477A (en) | Single use device for delivery of cartridge drugs | |
| JPH03173576A (en) | Hypodermic syringe assembly | |
| US6093171A (en) | Safety syringe | |
| JPH10501996A (en) | Catheter device | |
| JPH07500993A (en) | injection device | |
| JP7254085B2 (en) | flush syringe with flip cap | |
| JP3300343B2 (en) | Applicator with two cannulas | |
| CN107050576B (en) | Safety syringe | |
| WO1997029798A1 (en) | Device | |
| CN107412917A (en) | The injection needle guiding groove of injector for medical purpose | |
| CN209108301U (en) | Injector for medical purpose with flexible stripping ring | |
| CN108926754A (en) | Injector for medical purpose with flexible stripping ring | |
| CN209108302U (en) | The injector for medical purpose that anti-needle is stabbed | |
| CN108926755A (en) | The injector for medical purpose that anti-needle is stabbed | |
| CN207822210U (en) | Convenient for the injector for medical purpose of one-handed performance | |
| US6719722B1 (en) | Safety syringe | |
| CN109200397A (en) | Applied to the protection sleeve pipe on syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |