CN109549653A - A kind of anti-needle thorn vein blood taking needle - Google Patents
A kind of anti-needle thorn vein blood taking needle Download PDFInfo
- Publication number
- CN109549653A CN109549653A CN201910029902.0A CN201910029902A CN109549653A CN 109549653 A CN109549653 A CN 109549653A CN 201910029902 A CN201910029902 A CN 201910029902A CN 109549653 A CN109549653 A CN 109549653A
- Authority
- CN
- China
- Prior art keywords
- needle
- blood taking
- groove
- groove body
- mounting hole
- 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
- 239000008280 blood Substances 0.000 title claims abstract description 100
- 210000004369 blood Anatomy 0.000 title claims abstract description 100
- 210000003462 vein Anatomy 0.000 title claims abstract description 35
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 210000002421 cell wall Anatomy 0.000 claims description 21
- 230000009471 action Effects 0.000 description 7
- 210000004204 blood vessel Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010241 blood sampling Methods 0.000 description 3
- -1 for example Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000037361 pathway Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 210000003191 femoral vein Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/15058—Joining techniques used for protective means
- A61B5/150595—Joining techniques used for protective means by snap-lock (i.e. based on axial displacement)
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The application provides a kind of anti-needle thorn vein blood taking needle, belongs to medical instruments field.Anti- needle thorn vein blood taking needle includes blood taking needle, tailpin component, anti-needle thorn shell and elastic component.Tailpin component includes hose, connection pedestal and tailpin, and tailpin is for being pierced into vacuum blood collection tube.One end of blood taking needle is arranged with needle handle, needle handle and hose two and；The end of anti-needle thorn shell offers the first mounting hole and the second mounting hole, and anti-needle thorn enclosure interior has through cavities, and blood taking needle can pass through the first mounting hole, and hose can pass through the second mounting hole；Anti- needle thorn shell offers groove body, and groove body side is provided with the first limiting section, and the groove body other side is provided with the second limiting section.Elastic component is installed in through cavities, and between the first mounting hole and needle handle；Needle handle can move to the first limiting section along groove body and be fixed on the first limiting section, and elastic component has so that elastic component moves to the trend of the second limiting section from groove body, so that blood taking needle can move to inside through cavities.
Description
Technical field
This application involves the field of medical instrument technology, pierce vein blood taking needle in particular to a kind of anti-needle.
Background technique
Venous blood collection mostly uses the superficial vein positioned at body surface, such as hand back vein, cubital venous or femoral vein.It is quiet in progress
It is general to be carried out by vein blood taking needle when arteries and veins is taken a blood sample.After vein blood taking needle completes blood sampling, syringe needle is needed to extract from body surface, but
It is that exposed syringe needle is easy to scratch medical worker or handles the cleanup crew of clinical waste.
Summary of the invention
Embodiments herein provides a kind of anti-needle thorn vein blood taking needle, it is intended to which the syringe needle for improving vein blood taking needle is easy
The problem of scathing.
In a first aspect, the embodiment of the present application provides a kind of anti-needle thorn vein blood taking needle, comprising: blood taking needle, is prevented tailpin component
Needle pierces shell and elastic component.One end of blood taking needle is arranged with needle handle；Tailpin component includes hose, connects pedestal and tailpin, soft
One end of pipe is sheathed on needle handle, and the other end of hose is connect with attachment base, and tailpin is installed on connection pedestal, and hose passes through connection
The connects with the internal cavities of pedestal and tailpin, tailpin is for being pierced into vacuum blood collection tube.The opposite end of anti-needle thorn shell opens up respectively
There are the first mounting hole and the second mounting hole, anti-needle thorn enclosure interior has through cavities, through cavities and the first mounting hole and the
The connection of two mounting holes, blood taking needle can pass through the first mounting hole, and hose can pass through the second mounting hole；Anti- needle thorn shell offers
Groove body, groove body are provided with the first limiting section close to the side of the first mounting hole, and groove body is provided with close to the side of the second mounting hole
Second limiting section.Elastic component is installed in through cavities, and between the first mounting hole and needle handle；Needle handle can be transported along groove body
It moves to the first limiting section and is fixed on the first limiting section, elastic component has so that elastic component moves to the second limiting section from groove body
Trend, so that blood taking needle can move to inside through cavities.
In the anti-needle thorn vein blood taking needle of the application, anti-needle thorn enclosure interior has through cavities, and through cavities can be held
Receive blood taking needle, needle handle and hose, blood taking needle can pass through the first mounting hole and connect with needle handle, and hose can pass through second and install
The connection of Kong Bingyu needle handle.Anti- needle thorn shell offers groove body, and groove body is connected to through cavities, and groove body provides logical for the movement of needle handle
Road.Needle handle can move to the first limiting section along groove body and be fixed on the first limiting section, when needle handle is fixed on the first limiting section,
Elastic component is in compressed state, and the both ends of elastic component are supported with flange and plates respectively.Elastic component has so that elasticity
Part moves to the trend of the second limiting section from groove body, when needle handle enters in groove body after the disengaging of the first limiting section, in elasticity
Under the action of part restoring force, by needle handle from groove body bullet to the second limiting section, needle handle drives blood taking needle to move to the second limit from groove body
Position portion is fixed in the second limiting section, at this point, blood taking needle is from the first mounting hole to through cavities internal motion, it is final all to accommodate
In through cavities, to prevent blood-taking needle from hurting sb.'s feelings.
In a kind of possible embodiment, the first limiting section is the first groove for being opened in groove body one end, groove body and
The connection of one groove, needle handle can be stuck in the first groove.By the way that the first groove is arranged, the first groove is entered from groove body in needle handle
When, the cell wall of the first groove supports needle handle to limit the movement of needle handle, so that needle handle is fixed in the first groove.
In a kind of possible embodiment, the second limiting section is the second groove for being opened in the groove body other end, and second is recessed
Slot is connected to groove body, and needle handle can be stuck in the second groove, so that blood taking needle can be contained in inside through cavities.In needle handle
When proceeding to the second groove from groove body, the cell wall of the second groove can be supported needle handle to limit the movement of needle handle, to avoid
Needle handle is detached from anti-needle and pierces shell.
In a kind of possible embodiment, finite place piece, limit is arranged in one end close to the second mounting hole of the second groove
Position part extends along the cell wall of the second groove into groove body.When groove body moves, due to the presence of locating part, needle handle is limited needle handle
Part limitation movement, so that further avoid needle handle pops up anti-needle thorn shell under the action of the restoring force of elastic component.
In a kind of possible embodiment, locating part is provided with guide surface, and guide surface is arranged towards the second groove, needle handle
The guide surface of locating part can be moved to along groove body, and is moved in the second groove along guide surface.Guide surface has the work of guiding
With, needle handle can move to guide surface along groove body, and under the guiding role of guide surface, enters in the second groove and be fixed,
To preferably avoid needle handle from being ejected outside anti-needle thorn shell.
In a kind of possible embodiment, the cell wall far from the second mounting hole of the second groove is provided with opening or recessed
Portion, opening or recess portion can limit needle handle movement.Opening or recess portion have the support force of different directions to needle handle, then can incite somebody to action
Needle handle is preferably stuck in the second groove.
In a kind of possible embodiment, anti-needle thorn shell offers communicating passage, the both ends of communicating passage respectively with
Groove body and the connection of the second mounting hole, needle handle can pass through communicating passage.The installation of needle handle and elastic component can pass through the communicating passage
It carries out.In assembly, one end of blood taking needle and needle handle is connected, the other end of hose and needle handle is connected, by needle handle and blood sampling
Needle and elastic component are mounted in through cavities, and needle handle enters in groove body along communicating passage, to realize that anti-needle thorn vein is adopted
The assembling of blood needle.
In a kind of possible embodiment, elastic component is spring.Spring has preferably can deformation and recoverable force energy
Power, needle handle can be moved to the first limiting section through spring-compressed, and under the action of the elastic-restoring force of spring, needle handle can be from slot
Body moves in the second groove.
In a kind of possible embodiment, the hole wall of the first mounting hole is provided with flange, and spring can be held in flange.
Elastic component can be supported by the effect of flange.
In a kind of possible embodiment, first connecting portion and second connecting portion is respectively set in the both ends for connecting pedestal,
First connecting portion is connect with hose, and one end of tailpin is connected with fixing seat, and fixing seat is connect with second connecting portion.Pass through attachment base
The first connecting portion and second connecting portion of body can be realized the connection pedestal connection with hose, tailpin respectively.
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 the application embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, 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 of anti-needle thorn vein blood taking needle provided by the embodiments of the present application；
Fig. 2 is that blood taking needle, elastic component and the anti-needle of anti-needle thorn vein blood taking needle provided by the embodiments of the present application pierce shell
Explosive view；
Fig. 3 is the cooperation schematic diagram of blood taking needle provided by the embodiments of the present application and needle handle, anti-needle thorn shell；
Fig. 4 is the structural schematic diagram of anti-needle thorn shell provided by the embodiments of the present application.
Icon: the anti-needle of 100- pierces vein blood taking needle；110- blood taking needle；121- hose；122- connection pedestal；1221- first
Interconnecting piece；1222- second connecting portion；123- tailpin；The anti-needle of 130- pierces shell；The first mounting hole of 131-；The second mounting hole of 132-；
134- groove body；The first groove of 135-；The second groove of 136-；136a- opening；137- locating part；138- communicating passage；137a- is led
To face；139- protrusion；140- elastic component；150- needle handle；151- connecting tube；152- plates；161- protective case.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application embodiment clearer, implement below in conjunction with the application
The technical solution in the application embodiment is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is a part of embodiment of the application, rather than whole embodiments.Based on the embodiment in the application, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the application
The range of protection.
Therefore, requirement is not intended to limit to the detailed description of the presently filed embodiment provided in the accompanying drawings below to protect
The scope of the present application of shield, but it is merely representative of the selected embodiment of the application.Based on the embodiment in the application, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the application
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 application, it is to be understood that term " length ", " thickness ", "upper", "lower", " left side ", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this Shen
It is please described with simplified, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with specific orientation
Construction and operation, therefore should not be understood as the limitation to the application.
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 this application 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 this application specific can be understood as the case may be
Meaning.
Embodiments herein provides a kind of anti-needle thorn vein blood taking needle 100, it is intended to improve the syringe needle of vein blood taking needle
The problem of being easy scathing.
Below in conjunction with the attached drawing in the embodiment of the present application, the technical solution in the embodiment of the present application is described.
Fig. 1 is please referred to, Fig. 1 shows the structural schematic diagram of anti-needle thorn vein blood taking needle 100.The anti-needle pierces vein blood taking needle
100 include blood taking needle 110, tailpin component, anti-needle thorn shell 130 and elastic component 140.
Referring to figure 2., one end of blood taking needle 110 is arranged with needle handle 150, and needle handle 150 is for fixing blood taking needle 110.It is optional
Ground, blood taking needle 110 are hollow metal needle, and material can be stainless steel.
Wherein, needle handle 150 includes the plates 152 of connecting tube 151 and the outer wall setting in connecting tube 151, needle handle 150
Connecting tube 151 there is connected pathways, one end of connecting tube 151 is set in outside blood taking needle 110, the inner passage of blood taking needle 110
It is connected to the connected pathways of needle handle 150.Wherein, tailpin component includes hose 121, connection pedestal 122 and tailpin 123, hose 121
One end be sheathed on needle handle 150, optionally, hose 121 can be set in the outside of connecting tube 151, can also be set in connection
Inside pipe 151.
The both ends of connection pedestal 122 are respectively first connecting portion 1221 and second connecting portion 1222, and inside has channel, should
First connecting portion 1221 and second connecting portion 1222 are run through in channel.The other end of hose 121 and the first connection for connecting pedestal 122
Portion 1221 connects, and one end of tailpin 123 is connected with fixing seat (not shown), and fixing seat is installed on the of connection pedestal 122
Two interconnecting pieces 1222, tailpin 123 is for being pierced into vacuum blood collection tube (not shown).After blood taking needle 110 is inserted into blood vessel, due to
The suction function of vacuum blood collection tube, blood can enter in hose 121 after blood taking needle 110, then collect through tailpin 123
In vacuum blood collection tube, achieve the effect that acquire blood.The plates 152 of the outer wall setting of connecting tube 151, which can facilitate, to be grasped
Make, plates 152 are structure as a whole with connecting tube 151, and globality is more preferable.Wherein, plates 152 with a thickness of 2~6mm, should
152 thickness of plates in thickness range is moderate, is convenient for finger grip.In addition, the length of connecting tube 151 is advisable in 2~5cm.
Optionally, it is arranged with protective case 161 outside blood taking needle 110, before blood was collected using blood taking needle 110, passes through guarantor
Sheath 161 gets up the protection of blood taking needle 110, avoids stabbing medical worker or other staff.It needs to be adopted using blood taking needle 110
When blood, protective case 161 is removed.Specifically, protective case 161 can use flexible material, for example, PVC hose.
Referring to figure 3. and Fig. 4, wherein anti-needle thorn shell 130 is mainly used for the protection after the completion of blood taking needle 110 is taken a blood sample.It is anti-
Needle thorn shell 130 can be made of common medical plastic, for example, anti-needle thorn shell 130 can be by polyvinyl chloride, polyethylene, poly-
One or more of materials such as propylene, polycarbonate and polytetrafluoroethylene (PTFE) are made.Anti- needle thorn shell 130 substantially long column
Shape, opposite end offer the first mounting hole 131 and the second mounting hole 132, the first mounting hole 131 and the second mounting hole respectively
132 be circular hole, can be configured as square hole.The inside of anti-needle thorn shell 130 has through cavities, wherein through cavities with
First mounting hole 131 is connected to the second mounting hole 132.Blood taking needle 110 can pass through the first mounting hole 131 and connect with needle handle 150
It connects, hose 121 can pass through the second mounting hole 132 and connect with needle handle 150.
Anti- needle thorn shell 130 offers groove body 134, and groove body 134 is connected to through cavities, and groove body 134 is for needle handle 150
Movement provides channel, while can also limit the direction of motion of needle handle 150, and needle handle 150 then can be in groove body 134 and through cavities
Interior movement.The motion profile of needle handle 150 is influenced by the concrete shape of groove body 134.For example, if the generally strip of groove body 134
Shape, then needle handle 150 is generally linear in the motion profile of groove body 134；If the generally curve-like of groove body 134, needle handle 150 exist
The motion profile of groove body 134 substantially curve.In addition, the outer wall of anti-needle thorn shell 130 is provided with protrusion 139, by the protrusion
139 can facilitate will blood taking needle 110 be inserted into blood vessel in.
Groove body 134 is provided with the first limiting section close to the side of the first mounting hole 131, and groove body 134 is close to the second mounting hole
132 side is provided with the second limiting section.Illustratively, the connecting tube 151 of needle handle 150 can move in through cavities, piece
Shape body 152 stretches out groove body 134 from through cavities and extends to outside groove body 134, and plates 152 are limited in the first limiting section and second
Position moves between portion, and in other words, the motion profile of needle handle 150 can only be between the first limiting section and the second limiting section.
Elastic component 140 is installed in through cavities, and between the first mounting hole 131 and needle handle 150.In other words,
One end of elastic component 140 can support at the first mounting hole 131, and be located in through cavities.Elastic component 140 can choose bullet
Spring also can choose the elastic slice of bending.In addition, illustratively, the hole wall of the first mounting hole 131 is provided with flange, and spring is arranged
Outside the connecting tube 151 of needle handle 150, and the both ends of spring can be held in the plates 152 of flange and needle handle 150 respectively.It can
Selection of land, the inner wall that one end of spring can also pierce shell 130 with the anti-needle at the first mounting hole 131 is connect, and can be not provided with
Flange.
Wherein, needle handle 150 can move to the first limiting section along groove body 134 and be fixed on the first limiting section.When needle handle 150
When (specially plates 152) are fixed on the first limiting section, elastic component 140 is in compressed state.The both ends of elastic component 140
It is supported respectively with flange and plates 152.In addition, elastic component 140 is when in a compressed state, elastic component 140 has so that elasticity
Part 140 moves to the trend of the second limiting section from groove body 134, so that blood taking needle 110 can move to inside through cavities.
When needle handle 150 moves to groove body 134 from the first limiting section, at this point, since the end of elastic component 140 is no longer influenced by
Plates 152 support, then under the action of 140 restoring force of elastic component, elastic component 140 is returned to normal shape from compressive state
State, thus by needle handle 150 from 134 bullet of groove body to the second limiting section, needle handle 150 drives blood taking needle 110 to move to the from groove body 134
Two limiting sections are fixed in the second limiting section, at this point, blood taking needle 110 is from the first mounting hole 131 to through cavities internal motion, most
It is entirely accommodated in through cavities eventually.It should be noted that the length of groove body 134 is related with the length of blood taking needle 110, specific
When design, as long as guaranteeing needle handle 150 when being stuck in the first limiting section, blood taking needle 110 can normal use, needle handle 150 is stuck in second
When limiting section, blood taking needle 110 can be entirely accommodated in through cavities inside.
In a kind of possible embodiment, the first limiting section is the first groove 135 for being opened in 134 one end of groove body,
It is that the first groove 135 is arranged close to the first mounting hole 131, wherein groove body 134 is connected to the first groove 135,150 energy of needle handle
It is enough stuck in the first groove 135 (referring to Fig. 3).As shown in figure 4, be recessed more to the left for the opposite groove body 134 of the first groove 135,
Then the upper cell wall of the first groove 135 can plates 152 to needle handle 150 form restriction effect.When the plates of needle handle 150
152 when moving to the first groove 135 from groove body 134, and plates 152 support the left cell wall and upper cell wall in the first groove 135.
It, can be by the depth of the first groove 135 in order to guarantee that the plates 152 of needle handle 150 can be fixedly more preferable in the first groove 135
Be set greater than or equal to plates 152 thickness.Alternatively it is also possible to convex in the left cell wall of groove body 134 or the setting of right cell wall
Portion's (not shown), the protrusion are set to one end close to the first mounting hole 131 of groove body 134, the slot of protrusion and groove body 134
Wall jointly limits plates 152, plates 152 from groove body 134 pass through after can be by protrusion and supporting, to limit sheet
The movement of body 152.
In a kind of possible embodiment, anti-needle thorn shell 130 offers communicating passage 138, and the two of communicating passage 138
End is connected to groove body 134 and the second mounting hole 132 respectively, and needle handle 150 can pass through communicating passage 138.Needle handle 150 and elastic component
140 installation can be carried out by the communicating passage 138.In assembly, by spring pocket outside the connecting tube 151 of needle handle 150, will adopt
Blood needle 110 is connect with the connecting tube 151 of needle handle 150, hose 121 is connect with the other end of needle handle 150, the connection of needle handle 150
Pipe 151 moves in through cavities with blood taking needle 110, and plates 152 then enter in groove body 134 along communicating passage 138, from
And realize the assembling of anti-needle thorn vein blood taking needle 100.It should be noted that in the present embodiment, it is logical that connection can also be not provided with
Road 138, when producing anti-needle thorn vein blood taking needle 100, the plates 152 of needle handle 150 are installed in groove body 134, groove body
134 end is the second limiting section.
Alternatively, it is also possible to similar with the first limiting section, the second limiting section is the second groove for being opened in 134 other end of groove body
136, it that is to say that the second groove 136 is arranged closer to the second mounting hole 132, the second groove 136 is connected to groove body 134, needle handle 150
It can be stuck in the second groove 136, so that blood taking needle 110 can be contained in inside through cavities.As shown in figure 4, second is recessed
Slot 136 is recessed more to the left for the second groove body 134.Then the lower cell wall of the second groove body 134 and left cell wall can be to needle handles
150 plates 152 form restriction effect.When the plates 152 of needle handle 150 move to the second groove 136 from groove body 134,
Plates 152 support the left cell wall and lower cell wall in the first groove 135.Optionally, the depth of the second groove body 134 is greater than or equal to
The thickness of plates 152, then the lower end of plates 152 can support the lower cell wall in the second groove 136 completely, can be by sheet
Body 152 is preferably fixed on the second groove 136.
In a kind of possible embodiment, one end close to the second mounting hole 132 of the second groove 136 is provided with limit
Part 137, locating part 137 along the second groove 136 cell wall to 134 internal stretch of groove body, in other words, locating part 137 opposite the
The cell wall of two grooves 136 protrudes, and extends to inside groove body 134.When being provided with communicating passage 138, needle handle 150 is in groove body
When 134 movement, due to the presence of locating part 137, needle handle 150 is limited the limitation movement of part 137, to avoid needle handle 150 in bullet
Property part 140 restoring force under the action of pop up anti-needle thorn shell 130.In addition, locating part 137 is provided with guide surface 137a, guiding
Face 137a is arranged towards the second groove 136, and a notch is formed between locating part 137 and groove body 134, and needle handle 150 can be along groove body
134 move to the guide surface 137a of locating part 137 through the notch, and move in the second groove 136 along guide surface 137a.By
The plates 152 of the guidance of guide surface 137a, needle handle 150 can enter the second groove 136 from groove body 134 along guide surface 137a,
It is fixed in the second groove 136, so that needle handle 150 preferably be avoided to be ejected outside anti-needle thorn shell 130.
Further, in order to which preferably the plates 152 of needle handle 150 are limited in the second groove 136, the present embodiment
The cell wall far from the second mounting hole 132 of second groove 136 is provided with opening 136a or recess portion, and opening 136a or recess portion can limit
Needle handle 150 processed moves.In other words, as shown in figure 4, the lower cell wall of the second groove 136 is provided with out close to the position of left cell wall
Mouth 136a or recess portion, be open the support force of 136a or recess portion to plates 152 with different directions, then can be by plates
152 are preferably stuck in the second groove 136, and in the present embodiment, opening 136a is wedge-like opening.
The present embodiment anti-needle thorn vein blood taking needle 100 when specifically used, hold plates 152, by plates 152 from
Groove body 134 dials at the first groove 135, and blood taking needle 110 is pierced by the first mounting hole 131 inside through cavities, and always to
Lower movement.When plates 152 are fixed at the first groove 135, the both ends of elastic component 140 respectively with flange and plates 152
Compressive state is supported and is in, blood taking needle 110 is in outside through cavities, after removing protective case 161, that is, can be inserted into blood vessel, by tail
Needle 123 is inserted into vacuum blood collection tube, can blood was collected.After the completion of blood sampling, vacuum blood collection tube is removed, and pin blood vessel to adopt
Blood needle 110 takes out from blood vessel, and after taking-up, plates 152 are dialed to groove body 134 from the first groove 135.At this point, due to bullet
The end of property part 140 is no longer influenced by the effect that supports of plates 152, then under the action of 140 restoring force of elastic component, elastic component
140 are returned to normal condition from compressive state, thus by needle handle 150 from 134 bullet of groove body to the side far from the first mounting hole 131
To.The plates 152 of needle handle 150 move leading out into the second groove 136 admittedly through guide surface 137a in groove body 134
It is fixed, at this point, blood taking needle 110 enters through cavities from the first mounting hole 131, finally it is completely accommodated in through cavities.To make
It obtains anti-needle thorn shell 130 protection of blood taking needle 110 is got up, blood taking needle 110 is avoided to stab medical worker or other staff.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for this field
For technical staff, various changes and changes are possible in this application.Within the spirit and principles of this application, made any
Modification, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of anti-needle pierces vein blood taking needle characterized by comprising
One end of blood taking needle, the blood taking needle is arranged with needle handle；
Tailpin component, the tailpin component include that hose, connection pedestal and tailpin, one end of the hose are sheathed on the needle
Handle, the other end of the hose are connect with the attachment base, and the tailpin is installed on the connection pedestal, and the hose passes through
The connects with the internal cavities of the connection pedestal and the tailpin, the tailpin is for being pierced into vacuum blood collection tube；
Anti- needle pierces shell, and the opposite end of the anti-needle thorn shell offers the first mounting hole and the second mounting hole respectively, described
Anti- needle thorn enclosure interior has through cavities, and the through cavities is connected to first mounting hole and second mounting hole,
The blood taking needle can pass through first mounting hole, and the hose can pass through the second mounting hole；The anti-needle thorn shell is opened
Equipped with groove body, the groove body is provided with the first limiting section close to the side of first mounting hole, and the groove body is close to described
The side of two mounting holes is provided with the second limiting section；And
Elastic component, the elastic component are installed in the through cavities, and between first mounting hole and the needle handle；
The needle handle can move to first limiting section along the groove body and be fixed on first limiting section, the elastic component tool
Have the tendency that so that the elastic component moves to second limiting section from the groove body, so that the blood taking needle can move
Inside to the through cavities.
2. anti-needle according to claim 1 pierces vein blood taking needle, which is characterized in that first limiting section is is opened in
First groove of groove body one end is stated, the groove body is connected to first groove, and the needle handle can be stuck in first groove
It is interior.
3. anti-needle according to claim 1 pierces vein blood taking needle, which is characterized in that second limiting section is is opened in
The second groove of the groove body other end is stated, second groove is connected to the groove body, and it is recessed that the needle handle can be stuck in described second
In slot, so that the blood taking needle can be contained in inside the through cavities.
4. anti-needle according to claim 3 pierces vein blood taking needle, which is characterized in that second groove close to described the
Finite place piece is arranged in one end of two mounting holes, and the locating part extends along the cell wall of second groove into the groove body.
5. anti-needle according to claim 4 pierces vein blood taking needle, which is characterized in that the locating part is provided with guide surface,
The guide surface is arranged towards second groove, and the needle handle can be moved to described in the locating part along the groove body and be led
It is moved in second groove to face, and along the guide surface.
6. anti-needle according to claim 3 or 4 pierces vein blood taking needle, which is characterized in that the separate institute of second groove
The cell wall for stating the second mounting hole is provided with opening or recess portion, and the opening or the recess portion can limit the needle handle movement.
7. anti-needle according to claim 1-5 pierces vein blood taking needle, which is characterized in that the anti-needle thorn shell is opened
Equipped with communicating passage, the both ends of the communicating passage are connected to the groove body and second mounting hole respectively, the needle handle energy
Enough pass through the communicating passage.
8. anti-needle according to claim 1-5 pierces vein blood taking needle, which is characterized in that the elastic component is bullet
Spring.
9. anti-needle according to claim 8 pierces vein blood taking needle, which is characterized in that the hole wall of first mounting hole is arranged
There is flange, the spring can be held in the flange.
10. anti-needle according to claim 1-5 pierces vein blood taking needle, which is characterized in that the connection pedestal
First connecting portion and second connecting portion is respectively set in both ends, and the first connecting portion is connect with the hose, and the one of the tailpin
End is connected with fixing seat, and the fixing seat is connect with the second connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029902.0A CN109549653A (en) | 2019-01-11 | 2019-01-11 | A kind of anti-needle thorn vein blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029902.0A CN109549653A (en) | 2019-01-11 | 2019-01-11 | A kind of anti-needle thorn vein blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109549653A true CN109549653A (en) | 2019-04-02 |
Family
ID=65872958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910029902.0A Pending CN109549653A (en) | 2019-01-11 | 2019-01-11 | A kind of anti-needle thorn vein blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109549653A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939845A (en) * | 2015-06-30 | 2015-09-30 | 李秋环 | Disposable automatically-retracting stabbing-prevention vein blood taking needle |
| CN205084130U (en) * | 2015-10-30 | 2016-03-16 | 盛红兰 | Book grinds dually prevents that acupuncture hinders safety helmet |
| CN205094453U (en) * | 2015-10-12 | 2016-03-23 | 中南大学 | Blood sampling needle |
| CN206183285U (en) * | 2016-08-24 | 2017-05-24 | 沈阳宝康生物工程有限公司 | Prevent adverse current and needle -prick prevention's blood taking needle |
| CN206462996U (en) * | 2016-08-29 | 2017-09-05 | 张巍 | A kind of safety blood taking device |
| CN206687719U (en) * | 2017-01-06 | 2017-12-01 | 中国医科大学附属盛京医院 | A kind of Novel blood taking needle |
| CN107485400A (en) * | 2017-09-15 | 2017-12-19 | 顾虹 | One kind blood sampling needle part and blood lancet device |
| CN207590688U (en) * | 2017-05-26 | 2018-07-10 | 上海交通大学医学院附属仁济医院 | A kind of safety blood taking needle device |
| CN108378859A (en) * | 2018-03-23 | 2018-08-10 | 圣光医用制品股份有限公司 | Disposable anti-needle pierces vein blood taking needle |
| CN108784715A (en) * | 2018-07-10 | 2018-11-13 | 江西丰临医疗科技股份有限公司 | Single-blade punctures needle shield and blood taking needle |
| CN209547991U (en) * | 2019-01-11 | 2019-10-29 | 刘贞宽 | A kind of anti-needle thorn vein blood taking needle |
-
2019
- 2019-01-11 CN CN201910029902.0A patent/CN109549653A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939845A (en) * | 2015-06-30 | 2015-09-30 | 李秋环 | Disposable automatically-retracting stabbing-prevention vein blood taking needle |
| CN205094453U (en) * | 2015-10-12 | 2016-03-23 | 中南大学 | Blood sampling needle |
| CN205084130U (en) * | 2015-10-30 | 2016-03-16 | 盛红兰 | Book grinds dually prevents that acupuncture hinders safety helmet |
| CN206183285U (en) * | 2016-08-24 | 2017-05-24 | 沈阳宝康生物工程有限公司 | Prevent adverse current and needle -prick prevention's blood taking needle |
| CN206462996U (en) * | 2016-08-29 | 2017-09-05 | 张巍 | A kind of safety blood taking device |
| CN206687719U (en) * | 2017-01-06 | 2017-12-01 | 中国医科大学附属盛京医院 | A kind of Novel blood taking needle |
| CN207590688U (en) * | 2017-05-26 | 2018-07-10 | 上海交通大学医学院附属仁济医院 | A kind of safety blood taking needle device |
| CN107485400A (en) * | 2017-09-15 | 2017-12-19 | 顾虹 | One kind blood sampling needle part and blood lancet device |
| CN108378859A (en) * | 2018-03-23 | 2018-08-10 | 圣光医用制品股份有限公司 | Disposable anti-needle pierces vein blood taking needle |
| CN108784715A (en) * | 2018-07-10 | 2018-11-13 | 江西丰临医疗科技股份有限公司 | Single-blade punctures needle shield and blood taking needle |
| CN209547991U (en) * | 2019-01-11 | 2019-10-29 | 刘贞宽 | A kind of anti-needle thorn vein blood taking needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5192275A (en) | IV infusion or blood collection guard assembly | |
| JP4464124B2 (en) | Round forward wing set with shield driven by leaf spring | |
| US7258678B2 (en) | Retractable safety needle | |
| CN101330937B (en) | Manually retracted safety needle with rigid wing structure | |
| JP6306706B2 (en) | Catheter insertion device | |
| CA2422307A1 (en) | Blood collection device | |
| JPH05503658A (en) | Disposable medical needle assemblies and catheter placement assemblies with fully secure enclosure means | |
| WO2007126085A1 (en) | Safety needle assembly | |
| US6926700B2 (en) | Needle assembly | |
| JP7352203B2 (en) | needle assembly | |
| CN209547991U (en) | A kind of anti-needle thorn vein blood taking needle | |
| EP1457228A2 (en) | Shielded needle assembly | |
| JP2008000554A (en) | Safety pin assembly | |
| CN109549653A (en) | A kind of anti-needle thorn vein blood taking needle | |
| JP4872362B2 (en) | Safety needle assembly having a curved portion | |
| CN108744146B (en) | Needle-stick-preventing remaining needle | |
| CN208943089U (en) | Iv cannule vacuum blood sampler | |
| JP2002210005A (en) | Protector | |
| JP2004154364A (en) | Protector | |
| CN114980949B (en) | Catheter assembly | |
| CN209826748U (en) | Improved blood taking needle | |
| JP3121840U (en) | Indwelling needle for hemodialysis | |
| JP2005176928A (en) | Flashback blood collection needle having needle shield | |
| CN208447610U (en) | It is exclusively used in the mechanism protected vein blood taking needle | |
| CN208756003U (en) | Disposable anti-needle pierces vein blood taking needle |
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 |