CN106924839A - A kind of safe intravenous infusion needle and its implementation - Google Patents
A kind of safe intravenous infusion needle and its implementation Download PDFInfo
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- CN106924839A CN106924839A CN201511019395.0A CN201511019395A CN106924839A CN 106924839 A CN106924839 A CN 106924839A CN 201511019395 A CN201511019395 A CN 201511019395A CN 106924839 A CN106924839 A CN 106924839A
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- needle
- puncture
- groove
- catheter
- intravenous infusion
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- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of safe intravenous infusion needle and its implementation, the transfusion needle includes：Inlying catheter, catheter block, puncture needle, needle stand and the pin wing, one end of the inlying catheter is connected to catheter block, one end of puncture needle is connected to needle stand, and the puncture needle and needle stand are interconnected hollow structure, catheter block is provided with position limiting structure, and needle stand is provided with the first draw-in groove and the second draw-in groove, pin fin is provided with the first groove, inlying catheter is connected to the port of catheter block, and puncture needle one is penetrated in needle stand, and other end passes from the mouth of pipe of inlying catheter.Draw point of the invention can stay in lining core bottom after puncturing successfully, protect medical personnel or other people be not wounded by stabbing, prevent from infecting disease because of the draw point for speckling with patient blood.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of safe intravenous infusion needle and its implementation.
Background technology
The disposable venous infusion needle for clinically now using is main by helmet, draw point, needle stand, the pin wing, connecting tube
Composition.When using, medical personnel first remove the helmet covered on draw point, then carry out vein blood vessel using draw point
Puncture, see blood back and infused after confirming to puncture successfully, during the entire process of transfusion, draw point is stayed in always
Ink vessel transfusing, the needle point yet with draw point is very sharp keen, and patient unfolds limbs in transfusion, and blood is punctured by draw point
The probability of pipe is very big, and especially to children and mental patient, after after infusion-completed, medical personnel are by steel for transfusion needle
Pin is extracted out from the vein blood vessel of human body, and the draw point for speckling with patient blood is exposed outside, easily cause medical personnel and
The accidental injury and infection of patient.
In order to solve the above problems, this invention takes new technical scheme.
The content of the invention
It is an object of the invention to provide a kind of practical safe intravenous infusion needle and its implementation, the vein
The pin wing of transfusion needle can pull back puncture needle so that puncture needle retracts to the catheter block, protect medical personnel
Or other people are not wounded by stabbing.
In the present invention, first aspect present invention provides a kind of safe intravenous infusion needle, the transfusion needle bag
Include：Inlying catheter, catheter block, puncture needle and needle stand.
One end of the inlying catheter is connected to described catheter block, and one end of puncture needle is connected to described needle stand,
And the puncture needle and needle stand are interconnected hollow structure, the inlying catheter includes puncture state and indwelling state
Two kinds, and indwelling state is via the transformation acquisition of the state of puncture.
Under puncture state wherein, foregoing puncture needle is seated in inlying catheter plays a supporting role, and utilizes
Puncture needle tip guides the inlying catheter in outside, cooperates and invades in punctured physiological tissue.
Indwelling state therein, is after it experienced puncture state, draw operation to be carried out by needle stand, makes this
Puncture needle is extracted out from inlying catheter, and inlying catheter is in indwelling state in foregoing physiological tissue, by puncture needle
The hollow structure being interconnected with needle stand, transfusion operation is carried out to foregoing inlying catheter.
In another preference, the foregoing needle stand of correspondence sets female Luer, and female Luer is connected into woven hose,
Or correspond to foregoing needle stand, external woven hose, or correspond to foregoing needle stand by way of integration
Woven hose is set.
In another preference, the transfusion needle is additionally provided with the pin wing, and the pin wing is provided with the first groove, and described first is recessed
Groove matches with the side of the catheter block, and the pin wing tail end is provided with buckle, and the hub outer surface is provided with first
Draw-in groove, and the afterbody buckle of first draw-in groove and the pin wing matches.
In another preference, the outer surface of the needle stand is provided with two the first draw-in grooves, and the transfusion needle is provided with
Two pin wings, and two first draw-in grooves are mutually corresponding respectively with two pin wings.
In another preference, at least one hypotenuse is included in the construction of first draw-in groove, for fast-falling
The pin wing.
In another preference, by the pin wing toward pull back when, the puncture needle retracts to the catheter block.
In another preference, the catheter block is provided with position limiting structure, is set on the circle of outer surface one of the needle stand
There is the second draw-in groove, second draw-in groove matches with the end of the position limiting structure, under indwelling state, described
Two draw-in groove is combined with the end of the position limiting structure, for by the end anchors of the position limiting structure described
So as to secure the above needle stand in two draw-in groove.
In another preference, the circle of outer surface one of the needle stand is provided with the second groove, in second groove
Elastic ring is provided with, for ensureing the sealing between the lateral body of the needle stand and the lateral body of the catheter block.
In another preference, sealing structure is provided with the catheter block, to ensure described under indwelling state leading
The sealing of base.
In another preference, the transfusion needle is additionally provided with helmet, and the helmet is arranged on the inlying catheter
On the mouth of pipe.
In another preference, one end that the needle stand is connected with the puncture needle is puncture needle connection end, at this
Puncture needle connection end is provided with through hole, and the through hole and puncture needle constitute leading for different transfusion directions under indwelling state
Logical structure, transfusion operation is carried out by the conducting structure to the inlying catheter.
In another preference, the external diameter of the puncture needle is 0.3mm-1.2mm.
In another preference, the length of the inlying catheter is 1.5cm-3cm.
In another preference, the catheter block is transparence.
Second aspect present invention provides a kind of implementation method of safe intravenous infusion needle, and the method includes as follows
Step：
A () provides a kind of safe intravenous infusion needle described in first aspect；
B () under initial puncture state, foregoing puncture needle is seated in inlying catheter plays a supporting role,
The inlying catheter in outside is guide using puncture needle tip, is cooperated and is invaded in punctured physiological tissue；
C () carries out draw operation after it experienced puncture state by needle stand, make the puncture needle from indwelling
Extracted out in conduit, inlying catheter is in indwelling state in foregoing physiological tissue, is mutually interconnected with needle stand by puncture needle
Logical hollow structure, transfusion operation is carried out to foregoing inlying catheter.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the safe intravenous infusion needle in embodiment 1；
Fig. 2 is a kind of structural representation of the safe intravenous infusion needle in embodiment 1；
Fig. 3 is a kind of structural representation of the safe intravenous infusion needle in embodiment 2.
Specific embodiment
The present inventor develops a kind of safe intravenous infusion needle and in fact first by in-depth study extensively
Existing method, the intravenous infusion needle is provided with the pin wing, and the puncture needle that can be pulled back after puncturing successfully is so that puncture needle retracts
Inside to the catheter block, it is ensured that puncture needle will not puncture blood vessel during transfusion, improve security during transfusion；
The needle stand of the intravenous infusion needle is provided with the second draw-in groove, the end phase of second draw-in groove and the position limiting structure
Matching, when the pin wing pulls back puncture needle, second draw-in groove is combined with the end of the position limiting structure, can be with
By the end anchors of the position limiting structure in second draw-in groove so as to secure the above needle stand so that needle stand is not
Can be drawn out from catheter block and then cause the puncture needle still in catheter block, it is to avoid to speckle with wearing for patient blood
Pricker is exposed outside, so as to cause the accidental injury and infection of medical personnel and patient.
Intravenous infusion needle and its implementation
The invention provides a kind of safe intravenous infusion needle and its implementation, the transfusion needle includes：Indwelling
Conduit 1, catheter block 2, puncture needle 3 and needle stand 4.
In the present invention, one end of the inlying catheter 1 is connected to described catheter block 2, and one end of puncture needle 3 connects
Described needle stand 4 is connected to, and the puncture needle 3 and needle stand 4 are interconnected hollow structure, the inlying catheter 1
Including puncturing two kinds of state and indwelling state, and indwelling state is obtained via the state transformation of puncture.
In the present invention, under puncture state wherein, foregoing puncture needle 3 is seated in inlying catheter 1 and plays
Supporting role, the inlying catheter 1 in outside is guide using the tip of puncture needle 3, is cooperated to invade and is worn
In the physiological tissue of thorn.
In the present invention, indwelling state therein is after it experienced puncture state, to be taken out by needle stand 4
Pulling process, makes the puncture needle 3 be extracted out from inlying catheter 1, and inlying catheter 1 is in stay in foregoing physiological tissue
Configuration state, by puncture needle 3 and the interconnected hollow structure of needle stand 4, is carried out to foregoing inlying catheter 1
Transfusion operation.
Preferably, the foregoing needle stand 4 of correspondence, sets female Luer (being not drawn into figure), and female Luer is connected
Woven hose 5 is connect, or correspond to foregoing needle stand 4, external woven hose 5, or correspond to foregoing needle stand and led to
The mode for crossing integration sets woven hose 5.
In another preference, the transfusion needle is additionally provided with the pin wing 6, and the pin wing 6 is provided with the first groove 7, described
First groove 7 matches with the side of the catheter block 2, and the tail end of the pin wing 6 is provided with buckle, outside the needle stand 4
Surface is provided with the first draw-in groove 8, and the afterbody buckle of first draw-in groove 8 and the pin wing 6 matches.
In another preference, the outer surface of the needle stand 4 is provided with two the first draw-in grooves 8, the transfusion needle
Two pin wings 6 are provided with, and two first draw-in grooves 8 are mutually corresponding respectively with two pin wings 6.
In another preference, at least one hypotenuse is included in the construction of first draw-in groove 8, for quick de-
Fall the pin wing 6.
In another preference, by the pin wing 6 toward pull back when, the puncture needle 3 retracts to the catheter block
Inside 2.
In another preference, the catheter block 2 is provided with position limiting structure 9, the outer surface one of the needle stand 4
Circle is provided with the second draw-in groove 10, and second draw-in groove 10 matches with the end of the position limiting structure 9, indwelling
Under state, second draw-in groove 10 is combined with the end of the position limiting structure 9, for by the position limiting structure
9 end anchors are in second draw-in groove 10 so as to secure the above needle stand 4.
In another preference, the circle of outer surface one of the needle stand 4 is provided with the second groove (being not drawn into figure),
Elastic ring 11 is provided with second groove, the sealing for ensureing the needle stand 4 and the catheter block 2.
In another preference, sealing structure (being not drawn into figure) is provided with the catheter block 2, to ensure
The sealing of the catheter block 2 under indwelling state.
In another preference, the transfusion needle is additionally provided with helmet (being not drawn into figure), and the helmet is arranged on
On the mouth of pipe of the inlying catheter 1.
In another preference, one end that the needle stand 4 is connected with the puncture needle 3 is puncture needle connection end 12,
Through hole is provided with the puncture needle connection end 12, the through hole and puncture needle 3 constitute different transfusions under indwelling state
The conducting structure in direction, transfusion operation is carried out by the conducting structure to the inlying catheter 1.
In another preference, the external diameter of the puncture needle 3 is 0.3mm-1.2mm.
In another preference, the length of the inlying catheter 1 is 1.5cm-3cm.
In another preference, the catheter block 2 is transparence.
The implementation method of the other safe intravenous infusion needle comprises the following steps：
A () provides a kind of safe intravenous infusion needle described above；
B () under initial puncture state, foregoing puncture needle 3 is seated in inlying catheter 1 and plays support
Effect, the inlying catheter 1 in outside is guide using the tip of puncture needle 3, is cooperated and is invaded what is punctured
In physiological tissue；
C () carries out draw operation after it experienced puncture state by needle stand 4, make the puncture needle 3 from
Extracted out in inlying catheter 1, inlying catheter 1 is in indwelling state in foregoing physiological tissue, by the He of puncture needle 3
The interconnected hollow structure of needle stand 4, transfusion operation is carried out to foregoing inlying catheter 1.
Main advantages of the present invention include：
A () described intravenous infusion needle is provided with the pin wing 6, the puncture needle 3 that can be pulled back after puncturing successfully is so that puncture needle 3
Retract to the catheter block 2, it is ensured that syringe needle will not puncture blood vessel during transfusion, alleviate the frightened heart of patient
Reason, in infusion process, can be appropriate unfold limbs, break away from posture stiff during original transfusion, improve defeated
Security during liquid；
B the needle stand 4 of () described intravenous infusion needle is provided with the second draw-in groove 10, second draw-in groove 10 with it is described
The end of position limiting structure 9 matches, when the pin wing 6 pulls back puncture needle 3, second draw-in groove 10 and the limit
The end of bit architecture 9 is combined, can be by the end anchors of the position limiting structure 9 in second draw-in groove 10
It is interior so as to secure the above needle stand 4 so that needle stand 4 will not be drawn out in the catheter block 2 and then cause puncture needle 3
Still in catheter block 2, it is to avoid the puncture needle 3 for speckling with patient blood is exposed outside, so as to causing medical care
Personnel and the accidental injury and infection of patient, for health care workers provide a working environment for good safety；
The second groove (being not drawn into figure), described second are additionally provided with the circle of outer surface one of (c) described needle stand 4
Elastic ring 11 is provided with groove, it is ensured that between the lateral body of the lateral body of the needle stand 4 and the catheter block 2
Sealing；
Sealing structure (being not drawn into figure) is additionally provided with (d) described catheter block 2, it is ensured that under indwelling state
The sealing of the catheter block 2；
E one end that () described needle stand 4 is connected with the puncture needle 3 is puncture needle connection end 12, is connected in the puncture needle
Connect end 12 and be provided with through hole (being not drawn into figure), the through hole and puncture needle 3 constitute different transfusions under indwelling state
The conducting structure in direction, can avoid for whole liquid being delivered to inlying catheter 1 by single direction, increase liquid flow
Speed；
At least one hypotenuse is included in the construction of (f) described first draw-in groove 8, can be with the pin wing 6 described in fast-falling；
G () described intravenous infusion needle is provided with two first draw-in grooves 8 and the paired two pin wings 6,
The service life of intravenous infusion needle as a preparation and a use, can be increased
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate
The present invention rather than limitation the scope of the present invention.The experimental technique of unreceipted actual conditions in the following example,
Generally according to normal condition, or according to the condition proposed by manufacturer.Unless otherwise indicated, otherwise percentage
It is percentage by weight and parts by weight with number.
It should be noted that in the claim and specification of this patent, such as first and second or the like
Relational terms are used merely to make a distinction an entity or operation with another entity or operation, and not necessarily
It is required that or implying between these entities or operation there is any this actual relation or order.And, art
Language " including ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion so that
Process, method, article or equipment including a series of key elements not only include those key elements, but also including not having
There are other key elements being expressly recited, or also include for this process, method, article or equipment institute are intrinsic
Key element.In the absence of more restrictions, the key element limited by sentence " including ", it is not excluded that
Also there is other identical element in the process including the key element, method, article or equipment.
Embodiment 1
As shown in figure 1, present embodiments providing a kind of safe intravenous infusion needle, the transfusion needle includes：Stay
Put conduit 1, catheter block 2, puncture needle 3, needle stand 4, woven hose 5 and the pin wing 6.
One end of the inlying catheter 1 is connected to described catheter block 2, and one end of puncture needle 3 is connected to described
Needle stand 4, and the puncture needle 3 and needle stand 4 are interconnected hollow structure, the inlying catheter 1 includes puncturing
Two kinds of state and indwelling state, and indwelling state is via the transformation acquisition of the state of puncture.
Under puncture state wherein, foregoing puncture needle 3 is seated in inlying catheter 1 and plays a supporting role,
The inlying catheter 1 in outside is guide using the tip of puncture needle 3, is cooperated and is invaded punctured physiology group
In knitting.
Indwelling state therein, is after it experienced puncture state, draw operation to be carried out by needle stand 4, is made
The puncture needle 3 is extracted out from inlying catheter 1, and inlying catheter 1 is in indwelling state in foregoing physiological tissue, is led to
Puncture needle 3 and the interconnected hollow structure of needle stand 4 are crossed, transfusion operation is carried out to foregoing inlying catheter 1.
Correspond to foregoing needle stand 4 and woven hose 5 is set by way of integration.
The catheter block 2 is provided with position limiting structure 9.
The circle of outer surface one of the needle stand 4 is provided with the second draw-in groove 10, and second draw-in groove 10 is spacing with described
The end of structure 9 matches, and second draw-in groove 10 is combined with the end of the position limiting structure 9, for inciting somebody to action
The end anchors of the position limiting structure 9 are in second draw-in groove 10 so as to secure the above needle stand 4.
The first draw-in groove 8, and first draw-in groove 8 and the pin wing 6 are additionally provided with the outer surface of the needle stand 4
Afterbody match, first draw-in groove 8 be used for the afterbody of the pin wing 6 is buckled in first draw-in groove 8
It is interior.
The pin wing 6 is provided with the first groove 7, and first groove 7 matches with the side of the catheter block 2,
First groove 7 is used to be stuck on the pin wing 6 side of the catheter block 2.
In the present embodiment, by the pin wing 6 toward pull back when, the puncture needle 3 retracts to the catheter block 2
Portion.
As shown in Fig. 2 in the present embodiment, when using, hand pinches the pin wing 6 and carries out venipuncture, sees blood back and wears
After piercing successfully, the pin wing 6 of pulling back simultaneously advances inlying catheter 1 simultaneously, and puncture needle 3 is fallen back on the inside of catheter block 2,
Now position limiting structure 9 will block the second draw-in groove 10 on needle stand 4, realize that fixed needle stand 4 is acted on, same to hour hands
The wing 6 can shirk naturally from the first draw-in groove 8, and liquid is by needle stand 4 in following woven hose 5 and punctures
The transfusion conducting structure that pin 3 is formed, is infused to inlying catheter 1.
In the present embodiment, the end phase being provided with the position limiting structure 9 is enclosed in the outer surface one of the needle stand 4
With the second draw-in groove 10, it can be ensured that when needle stand 4 one weeks is rotated, the end of the position limiting structure 9 being capable of buckle
In any one second draw-in groove 10 on the circle of outer surface one of the needle stand 4, so that it is guaranteed that needle stand 4 will not be pulled out
Go out.
Embodiment 2
As shown in figure 3, the present embodiment includes a kind of safe intravenous infusion needle of the offer of embodiment 1, and this
Embodiment is further improved the intravenous infusion needle that embodiment 1 is provided, and is theed improvement is that：
The second groove (being not drawn into figure), second groove are additionally provided with the circle of outer surface one of the needle stand 4
Elastic ring 11 is inside provided with, for ensureing the sealing between the lateral body of the needle stand 4 and the lateral body of the catheter block 2
Property；
Sealing structure (being not drawn into figure) is additionally provided with the catheter block 2, it is ensured that described under indwelling state
The sealing of catheter block 2；
The transfusion needle is additionally provided with helmet (being not drawn into figure), and the helmet is arranged on the inlying catheter 1
On the mouth of pipe；
One end that the needle stand 4 is connected with the puncture needle 3 is puncture needle connection end 12, in puncture needle connection
End 12 is provided with through hole (being not drawn into figure), and the through hole and puncture needle 3 constitute different transfusions under indwelling state
The conducting structure in direction, is infused to inlying catheter 1, can avoid conveying whole liquid by single direction
To inlying catheter 1, increase flow rate of liquid；
At least one hypotenuse is included in the construction of first draw-in groove 8, for the pin wing 6 described in fast-falling.
In the present embodiment, when using, helmet (being not drawn into figure) is first taken down, puncture needle 3 is punctured to Ink vessel transfusing,
After puncturing successfully, hand pinches the pin wing 6 toward pulling back, and when moving certain position to, the position limiting structure 9 on catheter block 2 can be stuck in
The second draw-in groove 10 on needle stand 4, the pin wing 6 also can be shirked from the first draw-in groove 8, and puncture needle 3 now is moved back
Return to inside catheter block 2, it can be ensured that in infusion process, puncture needle will not puncture blood vessel, transfusion is extracted quiet after terminating
Arteries and veins transfusion needle, now puncture needle 3 still in catheter block 2, following through hole (being not drawn into figure) and puncture needle 3
The conducting structure in different transfusion directions is constituted, transfusion operation is carried out to inlying catheter 1, can avoid leading to whole liquid
Cross single direction and be delivered to inlying catheter 1, increased flow rate of liquid.
In the present embodiment, the second groove (being not drawn into figure) is additionally provided with the circle of outer surface one of the needle stand 4,
Elastic ring 11 is provided with second groove, it is ensured that the side of the lateral body of the needle stand 4 and the catheter block 2
Sealing between body.
Sealing structure (being not drawn into figure) is additionally provided with the catheter block 2, it is ensured that described under indwelling state
The sealing of catheter block 2.
At least one hypotenuse is included in the construction of first draw-in groove 8, can be with the pin wing 6 described in fast-falling.
Embodiment 3
The present embodiment includes a kind of safe intravenous infusion needle of the offer of embodiment 2, and the present embodiment is further
The intravenous infusion needle that embodiment 2 is provided is improved, is theed improvement is that：
The outer surface of the needle stand 4 is provided with two first draw-in grooves 8, and the transfusion needle is provided with described in two
The pin wing 6, and two first draw-in grooves 8 are mutually corresponding respectively with two pin wings 6；
The external diameter of the puncture needle 3 is 0.3mm-1.2mm；
The length of the inlying catheter 1 is 1.5cm-3cm；
The catheter block 2 is transparence.
In the present embodiment, the external diameter of the puncture needle 3 is 0.45mm, and the length of the conduit 1 is 2.5cm.
In the present embodiment, two first draw-in grooves 8 and the paired two pin wings 6 are provided with, can be with
As a preparation and a use, increase the service life of intravenous infusion needle.
The all documents referred in the present invention are all incorporated as reference in this application, just as each document quilt
It is individually recited as with reference to such.In addition, it is to be understood that after above-mentioned instruction content of the invention has been read, this
Art personnel can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application institute
Attached claims limited range.
Claims (15)
1. a kind of safe intravenous infusion needle, it is characterised in that：The transfusion needle include inlying catheter, catheter block,
Puncture needle and needle stand, one end of the inlying catheter are connected to described catheter block, and one end of puncture needle is connected to institute
The needle stand stated, and the puncture needle and needle stand are interconnected hollow structure, the inlying catheter includes puncture state
Obtained via the state transformation of puncture with two kinds of indwelling state, and indwelling state；
Under puncture state wherein, foregoing puncture needle is seated in inlying catheter plays a supporting role, and utilizes
Puncture needle tip guides the inlying catheter in outside, cooperates and invades in punctured physiological tissue；
Indwelling state therein, is after it experienced puncture state, draw operation to be carried out by needle stand, makes this
Puncture needle is extracted out from inlying catheter, and inlying catheter is in indwelling state in foregoing physiological tissue, by puncture needle
The hollow structure being interconnected with needle stand, transfusion operation is carried out to foregoing inlying catheter.
2. a kind of safe intravenous infusion needle according to claim 1, it is characterised in that correspondence is foregoing
Needle stand, sets female Luer, and female Luer is connected into woven hose, or correspond to foregoing needle stand, external defeated
Liquid pipe, or correspond to foregoing needle stand integration by way of woven hose is set.
3. a kind of safe intravenous infusion needle according to claim 1, it is characterised in that the transfusion
Pin is additionally provided with the pin wing, and the pin wing is provided with the first groove, the side phase of first groove and the catheter block
Match somebody with somebody, the pin wing tail end is provided with buckle, the hub outer surface is provided with the first draw-in groove, and first draw-in groove
Afterbody buckle with the pin wing matches.
4. a kind of safe intravenous infusion needle according to claim 1, it is characterised in that the needle stand
Outer surface is provided with two the first draw-in grooves, and the transfusion needle is provided with two pin wings, and two first cards
Groove is mutually corresponding respectively with two pin wings.
5. a kind of safe intravenous infusion needle according to claim 3 or 4, it is characterised in that described
At least one hypotenuse is included in the construction of one draw-in groove, for the pin wing described in fast-falling.
6. a kind of safe intravenous infusion needle according to claim 3 or 4, it is characterised in that will be described
The pin wing toward pull back when, the puncture needle retracts to the catheter block.
7. a kind of safe intravenous infusion needle according to claim 1, it is characterised in that the catheter block
Be provided with position limiting structure, the circle of outer surface one of the needle stand is provided with the second draw-in groove, second draw-in groove with it is described
The end of position limiting structure matches, and under indwelling state, second draw-in groove is mutually tied with the end of the position limiting structure
Close, for by the end anchors of the position limiting structure in second draw-in groove so as to secure the above needle stand.
8. a kind of safe intravenous infusion needle according to claim 1, it is characterised in that the needle stand
The circle of outer surface one is provided with the second groove, elastic ring is provided with second groove, for ensureing the needle stand
Sealing between the lateral body of lateral body and the catheter block.
9. a kind of safe intravenous infusion needle according to claim 1, it is characterised in that the catheter block
Sealing structure is inside provided with, to ensure the sealing of the catheter block under indwelling state.
10. a kind of safe intravenous infusion needle according to claim 1, it is characterised in that the transfusion
Pin is additionally provided with helmet, and the helmet is arranged on the mouth of pipe of the inlying catheter.
A kind of 11. safe intravenous infusion needles according to claim 1, it is characterised in that the needle stand
The one end being connected with the puncture needle is puncture needle connection end, and through hole is provided with the puncture needle connection end, is being stayed
The through hole and puncture needle constitute the conducting structure in different transfusion directions under configuration state, by the conducting structure to described
Inlying catheter carries out transfusion operation.
A kind of 12. safe intravenous infusion needles according to claim 1, it is characterised in that the puncture
The external diameter of pin is 0.3mm-1.2mm.
A kind of 13. safe intravenous infusion needles according to claim 1, it is characterised in that the indwelling
The length of conduit is 1.5cm-3cm.
A kind of 14. safe intravenous infusion needles according to claim 1, it is characterised in that the conduit
Seat is transparence.
15. a kind of implementation methods of safe intravenous infusion needle, it is characterised in that the method comprises the following steps：
A () provides a kind of safe intravenous infusion needle described in claim 1；
B () under initial puncture state, foregoing puncture needle is seated in inlying catheter plays a supporting role,
The inlying catheter in outside is guide using puncture needle tip, is cooperated and is invaded in punctured physiological tissue；
C () carries out draw operation after it experienced puncture state by needle stand, make the puncture needle from indwelling
Extracted out in conduit, inlying catheter is in indwelling state in foregoing physiological tissue, is mutually interconnected with needle stand by puncture needle
Logical hollow structure, transfusion operation is carried out to foregoing inlying catheter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019395.0A CN106924839A (en) | 2015-12-30 | 2015-12-30 | A kind of safe intravenous infusion needle and its implementation |
| PCT/CN2016/097725 WO2017113852A1 (en) | 2015-12-30 | 2016-08-31 | Medical catheter assembly with non-detachable puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019395.0A CN106924839A (en) | 2015-12-30 | 2015-12-30 | A kind of safe intravenous infusion needle and its implementation |
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| Publication Number | Publication Date |
|---|---|
| CN106924839A true CN106924839A (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511019395.0A Pending CN106924839A (en) | 2015-12-30 | 2015-12-30 | A kind of safe intravenous infusion needle and its implementation |
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| Country | Link |
|---|---|
| CN (1) | CN106924839A (en) |
| WO (1) | WO2017113852A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110368070B (en) * | 2018-04-12 | 2023-04-07 | 王增涛 | Blood pressure dynamic guide core puncture trocar |
| CN109260547B (en) * | 2018-09-19 | 2024-04-09 | 苏州林华医疗器械股份有限公司 | Atraumatic needle for intravenous transfusion port |
| CN109498897B (en) * | 2018-12-13 | 2024-05-03 | 苏州鑫康道医疗科技有限公司 | Anti-blocking retention needle |
| CN110859663B (en) * | 2019-12-20 | 2024-05-28 | 右江民族医学院附属医院 | Simple and convenient thoracic cavity puncture device and application method thereof |
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| WO2017113852A1 (en) | 2017-07-06 |
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