CN208339876U - A kind of remaining needle of rapid examination blood back - Google Patents
A kind of remaining needle of rapid examination blood back Download PDFInfo
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- CN208339876U CN208339876U CN201720934658.9U CN201720934658U CN208339876U CN 208339876 U CN208339876 U CN 208339876U CN 201720934658 U CN201720934658 U CN 201720934658U CN 208339876 U CN208339876 U CN 208339876U
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- blood back
- needle
- sealing groove
- conduit
- seal rubber
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Abstract
The utility model relates to a kind of remaining needles, especially a kind of remaining needle of rapid examination blood back, its composition is characterized by: being made with transparent material, blood back cavity for observing blood back is arranged at barriers rear, it is located in the blood back cavity on needle tubing for observing the side opening of blood back, porous plug is provided in blood back cavity wall, blood back cavity front and back end is provided with seal rubber plug, the rear of seal rubber plug is provided with a kind of sealing groove conduit afterwards, the rear end face paste of the front end face of sealing groove conduit and rear seal rubber plug is touched, the needle tubing being fixed on needle stand sequentially passes through forward sealing groove conduit, seal rubber plug afterwards, blood back cavity, preceding seal rubber plug, after barriers, it is then passed through conduit, needle tubing and sealing groove conduit both ends inner cavity are slided but are damped and be socketed, the blood back side opening for entering sealing groove conduit when removing needle is located in sealing groove conduit at the end of removing needle.It has the advantages that blood back speed is fast, is able to rapid examination blood back；And barriers length no longer needs to be greater than pointed orifice distance, removes needle resistance and is also reduced, thus it is easy to operate.
Description
Technical field
The utility model relates to a kind of remaining needle, especially a kind of remaining needle of rapid examination blood back.
Background technique
There is in existing remaining needle technical field, medicinal using a kind of puncture needle tubing front end the indwelling of a side opening
Needle, blood back side opening are located in the conduit outside catheter block front end.When puncture vessel, judge whether needle point enters blood vessel, is by blood
By needle lumen, front end side opening is flowed through, by blood back cavity in annular space, then inflow catheter seat between needle tubing outer wall and pipe inner wall,
And whether show is judged by the transparent material of catheter block.Between the front end of tip inlets and the rear end of blood back side opening away from
With a distance from for pointed orifice.In order to guarantee not hemorrhage, the length of barriers must be made to be longer than pointed orifice distance, so just produce
Barriers increase with the needle tubing outer surface contact area passed through in it, remove the deficiency that frictional resistance during needle greatly increases naturally
Place.Meanwhile there is the catheter diameter deviation less than normal generated by conduit manufacture in this technology, cause needle tubing and conduit annular space too narrow
Mountain pass, blood flow into that blood back cavity speed in catheter block is very slow, and especially small dimension remaining needle, problem is just more serious, enable obligator
Member's waiting time substantially extends, and influences puncture procedure.
Summary of the invention
The purpose of the utility model is to overcome shortcomings in the prior art, and provide that a kind of blood back speed is fast, behaviour
Make the remaining needle of convenient rapid examination blood back.
The purpose of this utility model is realized by following approach.
A kind of remaining needle of rapid examination blood back, including conduit tube component, the barriers that are mounted on its inner cavity, puncture needle tubing and
The affixed operation handle with needle tubing, needle tubing front end are equipped with a tip inlets, have lateral indwelling channel on catheter block, the channel with
Collateral aperture is mutually passed through between catheter block inner cavity, composition is characterized by: being made with transparent material, the blood back for observing blood back
The side opening that chamber is arranged on barriers rear, needle tubing for observing blood back is located in the blood back cavity, and blood back cavity or setting are in needle
On seat or it is arranged on the connection plug of connection needle stand and catheter block, porous plug, blood back cavity front and back end is provided in blood back cavity wall
It is provided with seal rubber plug, is preceding seal rubber plug and rear seal rubber plug respectively, the rear of rear seal rubber plug is provided with a kind of sealing groove
The rear end face paste of conduit, the front end face of sealing groove conduit and rear seal rubber plug is touched, and the needle tubing being fixed on needle stand sequentially passes through forward
After sealing groove conduit, rear seal rubber plug, blood back cavity, preceding seal rubber plug, barriers, it is then passed through conduit, needle tubing and sealing groove conduit both ends
Inner cavity sliding but damping socket, the blood back side opening that sealing groove conduit is entered when removing needle are located in sealing groove conduit at the end of removing needle.
In this way, remaining needle, first puncture sufferer blood vessel are used using working specification according to remaining needle, when needle point is pierced into blood
Pipe, blood flow out from blood back side opening by syringe intracavity duct, into blood back cavity, observe blood back through transparent material, determines
Needle point has entered blood vessel, then, pushes conduit, while gradually withdrawing from needle tubing in conduit, drives once being dropped back by operation handle
Needle tubing moves back, and needle tubing exits blood back cavity to the needle tubing blood back side opening being in blood back cavity therewith, that is, enters in sealing groove conduit, because of envelope
With needle tubing damping seal on the inside of slot conduit both ends, blood is overflowed by blood back side opening to be closed in sealing groove conduit, will not be polluted
To outer.
In this way, being not only able to rapid examination blood back, and barriers length no longer needs to be greater than pointed orifice distance.Foot can be made
Enough short, although increasing the seal length of front and back seal rubber plug and sealing groove conduit both ends, these length have no longer restriction,
Sealing effect can be played, therefore the contact length between needle tubing and sealing element is still less than pointed orifice distance in the prior art,
Therefore, needle resistance is removed also to be reduced.
The purpose of this utility model can also be realized by following approach.
It further include having a kind of telescopic protective cover component, telescopic protective cover component includes a plurality of slide bars, and operation handle passes through
Telescopic protective cover component and connection plug are connect with catheter block, and blood back cavity is located in connection plug inner cavity, a kind of length of lacing film in needle
Degree is jumped a queue between rear seal rubber plug and a slide bar on direction, and sealing groove catheter proximal end is set in the inner hole of the lacing film and cooperates connection
It ties, a kind of annular convex clip of radial protrusion is provided on needle tubing, this annular convex clip outer diameter is greater than the internal diameter at sealing groove conduit both ends.
It is retreated when reaching the ideal position in sealing groove conduit to blood back side opening in this way, removing needle, the annular convex clip is just and sealing groove
Wherein one end card at conduit both ends touches, since it pulls cooperation connecting forces of the power much larger than the fixed sealing groove conduit of lacing film, to allow
Needle tubing is followed to continue recession for sealing groove conduit until removing needle terminates.
Convex annular is positioned in the sealing groove conduit at blood back side opening rear, and the inner cavity of sealing groove conduit is a kind of small in ends broad in the middle
Interior expansion shape inner cavity, the outer diameter of annular convex clip is less than the internal diameter of sealing groove conduit interlude inner cavity.
Annular convex clip one is flat or an olive shape.
There is the transition of smooth slope shape between annular convex clip rear end and needle tubing.
The sliding of needle tubing in the seal is convenient in this smooth slope shape transition.
In conclusion the utility model has the advantages that blood back speed is fast compared with prior art, it is able to rapid examination and returns
Blood；And barriers length no longer needs to be greater than pointed orifice distance, and the contact length between needle tubing and sealing element is less than in the prior art
Pointed orifice distance therefore remove needle resistance and be also reduced.Therefore it is easy to operate.
Detailed description of the invention
Fig. 1 is a kind of appearance diagram of the remaining needle of rapid examination blood back described in the best embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram of the remaining needle of rapid examination blood back described in the best embodiment of the utility model；
Fig. 3 is needle tubing structural schematic diagram；Fig. 4 is connection plug schematic diagram；Fig. 5 is big slide bar schematic diagram；
Fig. 6 is that a kind of remaining needle of rapid examination blood back described in the best embodiment of the utility model removes the signal of needle process
Figure；
Fig. 7 is that a kind of remaining needle of rapid examination blood back described in the best embodiment of the utility model removes the signal of needle process
Figure；
Fig. 8 is that a kind of needle of removing of the remaining needle of rapid examination blood back described in the best embodiment of the utility model completes signal
Figure；
More description in detail is carried out to the utility model with reference to the accompanying drawing.
Specific embodiment
Most preferred embodiment:
Referring to Fig.1, Fig. 2 and Fig. 6, a kind of remaining needle of rapid examination blood back, this remaining needle include conduit tube component 1 and wear
Pierce component 2.Conduit tube component 1 extends tube assembly 1.3, liquid barrier 1.4 by conduit 1.1, catheter block 1.2, catheter block side opening, with
And the fastener composition between conduit and catheter block；Piercing assembly includes needle tubing 2.1, needle stand 2.2, needle stand fixed lid 2.3, manipulator
Handle 2.4 and the connection plug 2.5 of catheter block grafting, middle slide bar 2.7, small slide bar 2.8, are installed in connection plug big slide bar 2.6
Needle point stops the lacing film for component 2.9, connection plug forward end seal rubber plug 2.10, connection plug back-end sealing rubber plug 2.11, sealing groove conduit
2.12, sealing groove conduit 2.13 and porous plug or ventilated membrane 2.14 as blood back cavity.It is made with transparent material, for observing
The side opening that the blood back cavity of blood back is arranged on barriers rear, needle tubing for observing blood back is located in the blood back cavity, and blood back cavity is set
It sets on the connection plug 2.5 of connection piercing assembly 2 and catheter block 1.2, blood back cavity front and back end is provided with seal rubber plug, is respectively
Preceding seal rubber plug 2.10 and rear seal rubber plug 2.11, the rear of rear seal rubber plug are provided with a kind of sealing groove conduit 2.13, and sealing groove is led
The rear end face paste of the front end face of pipe 2.13 and rear seal rubber plug 2.11 is touched, and the needle tubing 2.1 being fixed on needle stand 2.2 is successively worn forward
After crossing sealing groove conduit 2.13, rear seal rubber plug 2.11, blood back cavity, preceding seal rubber plug 2.10, barriers 1.4, it is then passed through conduit
1.1, needle tubing 2.1 and 2.13 both ends inner cavity of sealing groove conduit are slided but are damped and be socketed, and the blood back of sealing groove conduit 2.13 is entered when removing needle
Side opening 2.1.1 is located in sealing groove conduit 2.13 at the end of removing needle.
Referring to Fig. 3, needle tubing 2.1 sets a blood back side opening 2.1.1, side opening close to the affixed needle stand end of needle tubing in needle tubing 2.1
2.1.1 position is placed exactly in after mounting in the blood back cavity of connection plug inner cavity, while at the close affixed needle stand end of needle tubing, apart from side
One annular convex clip 2.1.2 or flat or olivary convex clip are set at some distances in the hole rear 2.1.1, are mounted on for pulling
Sealing groove conduit 2.13 on the outer lacing film 2.12 of connection plug 2.5.
Referring to Fig. 2 and Fig. 6, sealing groove conduit 2.13,2.13 both ends internal chamber wall of sealing groove conduit can just be hindered with needle tubing outer wall
Buddhist nun seal sliding, wherein one end periphery wall can mount with conduit lacing film interstitial hole, in the case where external force is pullled, without departing from extension
Piece.The inner cavity of sealing groove conduit 2.13 is a kind of interior expansion shape inner cavity broad in the middle small in ends, and the outer diameter of annular convex clip 2.1.2 is less than envelope
The internal diameter of 2.13 interlude inner cavity of slot conduit.
Reference Fig. 2, Fig. 6 and Fig. 4, connection plug 2.5, it is made of clear material, is that a tool is hollow, both ends tool is open, centre
There is a revolving body of a tool interstitial hole interlayer at position, and connection plug 2.5 wherein opens up an air hole 2.5.1 on an end wall, the end and big
Slide bar is affixed, and is aligned with the hole 2.6.1 of breathing freely on big slide bar, the 2.5 periphery other end of connection plug and the grafting of catheter block inner cavity, connection
Plug both ends assemble a sealing element respectively, the seal rubber plug 2.10 before connection plug and catheter block inserted terminal inner cavity tight fit one, another
Seal rubber plug 2.11 after one end end face overlays one, constituting a sealing cavity between seal rubber plug before and after the connection plug inner cavity is exactly
Blood back cavity.
Reference Fig. 2, Fig. 6 and Fig. 5, big slide bar 2.6, made by transparent material, be a slim tube body, wherein one end inner cavity
With ladder, the rear seal rubber plug 2.11 that ladder height is large enough to hold connection plug, is close to connection plug end face, and sealed after being close to
The sealing groove conduit lacing film 2.12 of rubber plug 2.11 has some distances in end face on having interior ladder end wall and opens up an air hole 2.6.1.
Reference Fig. 2 and Fig. 6, operation handle 2.4 is made of clear material, and is a slim both ends open tube body, in pipe
Body one end is equipped with a radial outreach fin, and oral area is equipped with annular convex clip on the inside of the tube end set by fin, and in tube body outside one end
Week is equipped with ladder, closes with the fixed lid lid of needle stand affixed.
Piercing assembly assembly:
Connection plug forward end seal rubber plug 2.10 is passed through with needle stand fixed connecting end first on needle tubing, connection plug is penetrated and catheter block is inserted
End is connect, is passed through from connection plug interlayer interstitial hole, is pierced by connection plug, preceding seal rubber plug is pressed into connection plug inner cavity, the two outer end face
Concordantly, then needle tubing fixed connecting end penetrates needle point again and only goes out component, is subsequently passed through rear seal rubber plug and lacing film and the pre-hung of sealing groove conduit
The component for the number of connecing exposes needle tubing tail portion, passes through inner cavity in the good telescopic slide bar of pre-assembled followed by needle tubing, exposes needle tubing tail
And then connection plug is fixed in big slide bar stepped cavity by portion together with rear seal rubber plug and lacing film indentation, connection plug and big
Air hole is aligned on slide bar, and affixed, and porous plug is filled in installation in air hole, or is glued on the air hole of big slide bar outer surface
Ventilated membrane is pasted, and needle tubing tail end and needle stand insertion are affixed, followed by needle stand upper lever and the fixed lid grafting of needle stand, then by whole group
Component is inserted into intracavity of handle far from operation tab openings end from operation handle, until the fixed lid of needle stand merge with handle cover it is affixed,
Last piercing assembly assembles again with conduit tube component, adjusts Lay distance and pinpoint inclined plane direction, affixed needle by needle stand upper lever
Seat upper lever and the fixed lid of needle stand, cut extra needle stand rod piece outside fixed lid end face, complete assembling.
Remaining needle uses operation:
Remaining needle, first puncture sufferer blood vessel are used using working specification according to remaining needle, when needle point is pierced into blood vessel, blood
By syringe intracavity duct, flowed out from blood back side opening, into connection plug inner cavity, through transparent operation handle tube body and connection plug wall
Body observes blood back, determines that needle point has entered blood vessel, then, pushes conduit, while gradually withdrawing from needle tubing in conduit, once it is logical
Crossing operation handle recession drives needle tubing to move back, and simultaneous retractable formula slide bar is also gradually spread out therewith, due to sealing groove conduit and lacing film knot
Resultant force is greater than the damping sliding force of conduit and needle tubing, and needle tubing, which moves back, not will drive the movement of sealing groove conduit, and sealing groove conduit temporarily stops
Needle tubing exits blood back cavity to the needle tubing blood back slot for being left in place, and being in connection plug in blood back cavity therewith, that is, enters sealing groove conduit
It is interior, because, with needle tubing damping seal, blood is overflowed by blood back side opening to be closed in conduit, will not be dirty on the inside of sealing groove conduit both ends
Slide bar inner cavity is contaminated, as shown in Figure 6.Continue needle tubing of dropping back, when convex clip annular on needle tubing moves back and sealing groove end of conduit inner cavity
Be fitted close, since the two close-fitting resultant force is much larger than sealing groove conduit in conjunction with lacing film, sealing groove conduit is separated with lacing film, with needle tubing after
It is continuous to move back, as shown in fig. 7, needle tubing is taken in slide bar completely, in post-tensioning operation handle, connection plug until each slide bar is fully deployed
It is separated with conduit tube component, as shown in figure 8, operation terminates.
The not described part of the present embodiment is same as the prior art.
Claims (5)
1. a kind of remaining needle of rapid examination blood back, including conduit tube component, the barriers that are mounted on its inner cavity, puncture needle tubing and with
The affixed operation handle of needle tubing, needle tubing front end are equipped with a tip inlets, have lateral indwelling channel on catheter block, the channel with lead
Collateral aperture is mutually passed through between tube socket inner cavity, which is characterized in that be made with transparent material, the blood back cavity for observing blood back is arranged
At barriers rear, the side opening on needle tubing for observing blood back is located in the blood back cavity, blood back cavity or setting on needle stand or
Person is arranged on the connection plug of connection needle stand and catheter block, porous plug is provided in blood back cavity wall, blood back cavity front and back end is respectively provided with
There is seal rubber plug, be preceding seal rubber plug and rear seal rubber plug respectively, the rear of rear seal rubber plug is provided with a kind of sealing groove conduit, envelope
The rear end face paste of the front end face of slot conduit and rear seal rubber plug is touched, and the needle tubing being fixed on needle stand sequentially passes through forward sealing groove and leads
After pipe, rear seal rubber plug, blood back cavity, preceding seal rubber plug, barriers, it is then passed through conduit, needle tubing and sealing groove conduit both ends inner cavity are sliding
Dynamic but damping socket, the blood back side opening that sealing groove conduit is entered when removing needle are located in sealing groove conduit at the end of removing needle.
2. a kind of remaining needle of rapid examination blood back according to claim 1, which is characterized in that further include having a kind of stretch
Protective case component, telescopic protective cover component include a plurality of slide bars, and operation handle passes through telescopic protective cover component and connection plug
It is connect with catheter block, blood back cavity is located in connection plug inner cavity, and a kind of lacing film is jumped a queue on the length direction of needle in rear seal rubber plug
Between a slide bar, sealing groove catheter proximal end is set in the inner hole of the lacing film and cooperates connection, and a kind of radial direction is provided on needle tubing
The annular convex clip of protrusion, this annular convex clip outer diameter are greater than the internal diameter at sealing groove conduit both ends.
3. a kind of remaining needle of rapid examination blood back according to claim 2, which is characterized in that convex annular is positioned in blood back
In the sealing groove conduit at side opening rear, the inner cavity of sealing groove conduit is a kind of interior expansion shape inner cavity broad in the middle small in ends, annular convex clip
Outer diameter is less than the internal diameter of sealing groove conduit interlude inner cavity.
4. a kind of remaining needle of rapid examination blood back according to claim 2 or 3, which is characterized in that annular convex clip or
It is a flat or olive shape.
5. a kind of remaining needle of rapid examination blood back according to claim 4, which is characterized in that annular convex clip rear end and needle
There is the transition of smooth slope shape between pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720934658.9U CN208339876U (en) | 2017-07-28 | 2017-07-28 | A kind of remaining needle of rapid examination blood back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720934658.9U CN208339876U (en) | 2017-07-28 | 2017-07-28 | A kind of remaining needle of rapid examination blood back |
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| Publication Number | Publication Date |
|---|---|
| CN208339876U true CN208339876U (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720934658.9U Active CN208339876U (en) | 2017-07-28 | 2017-07-28 | A kind of remaining needle of rapid examination blood back |
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| CN (1) | CN208339876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327511A (en) * | 2019-05-30 | 2019-10-15 | 刘浩浩 | A kind of remaining needle |
| CN113599675A (en) * | 2021-09-14 | 2021-11-05 | 蚌埠医学院第一附属医院（蚌埠医学院附属肿瘤医院） | Femoral artery intubation and catheterization method capable of monitoring and increasing blood supply of lower limbs |
-
2017
- 2017-07-28 CN CN201720934658.9U patent/CN208339876U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327511A (en) * | 2019-05-30 | 2019-10-15 | 刘浩浩 | A kind of remaining needle |
| CN113599675A (en) * | 2021-09-14 | 2021-11-05 | 蚌埠医学院第一附属医院（蚌埠医学院附属肿瘤医院） | Femoral artery intubation and catheterization method capable of monitoring and increasing blood supply of lower limbs |
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Effective date of registration: 20230904 Granted publication date: 20190108 |