CN206777582U - High-safety needle staying on vein - Google Patents
High-safety needle staying on vein Download PDFInfo
- Publication number
- CN206777582U CN206777582U CN201621362170.5U CN201621362170U CN206777582U CN 206777582 U CN206777582 U CN 206777582U CN 201621362170 U CN201621362170 U CN 201621362170U CN 206777582 U CN206777582 U CN 206777582U
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- China
- Prior art keywords
- needle stand
- accommodating cavity
- vein
- fluting
- closing member
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- 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.)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of high-safety needle staying on vein, including needle stand, its front end is provided with nook closing member, and the needle stand bottom is provided with projection, and the projection flushes with the needle stand afterbody；Sheath, axial direction is provided with accommodating cavity in it, and the bottom of the sheath axially offers the fluting connected with the accommodating cavity, and the needle stand is movably arranged in the accommodating cavity, and the projection is outwardly in the fluting；And lever, its bottom offers the locating slot being adapted with the projection and the guide block adaptable with the fluting, the sheath is arranged on the lever, the projection is fixed on to cause needle stand to be linked with lever in the locating slot through the fluting, and the guide block is fastened in the fluting；Wherein, the guard leading end is provided with outer tube, outwards penetrates the outer tube nook closing member front-end selectivity or is contained in the accommodating cavity.The utility model solves nook closing member exposed to the outer technical problem for easily accidentally injuring operator.
Description
Technical field
Technical field of medical instruments is the utility model is related to, more specifically, the utility model is related to a kind of safe vein
Remaining needle.
Background technology
Venous detaining needle is a kind of medicine equipment for infusion, and existing human body artery and vein blood vessel is repeatedly, instead
Multiple injection medicament or fluid infusion all use remaining needle, and remaining needle is divided to two kinds of Y types and straight type, and general principle is all on remaining needle pin
A very thin outer tube as puncture needle is covered, it can be pierced into blood vessel with remaining needle nook closing member, outer tube doctor
Made of level special material, it is very thin very soft, but not the injection of medicament is influenceed, as medical personnel using remaining needle to the quiet of patient
When arteries and veins blood vessel is punctured, it is necessary to by observing whether the blood back cavity in the catheter block blood back occurs to judge that indwelling needle tubing is
It is no to be pierced into the vein blood vessel of patient, if being already inserted into the vein blood vessel of patient, just by the indwelling needle tubing of remaining needle from leading
Base rear end is extracted, and then woven hose is connected with conduit base rear end, by remaining needle sleeve pipe to defeated in the duct of Arantius of patient
Liquid.By indwelling needle tubing from conduit base rear end extraction after, outer tube indwelling in the blood vessel, can be carried out with remaining needle to patient at any time
Repetitious administration, both facilitated or safe.
But after being punctured using remaining needle, when extracting remaining needle nook closing member, because nook closing member is outside, thorn be present
The skin of broken medical worker, can cause the pollution to the body and neighbouring medicine equipment of medical personnel, add and infect disease quilt
The chance come is spread apart, so as to which the health of related personnel can be threatened.
Utility model content
A purpose of the present utility model is that solve at least the above, and provides the advantages of at least will be described later.
The utility model also has a purpose to be to provide a kind of high-safety needle staying on vein, in use, nook closing member passes through outer tube
Punctured, after the completion of puncture, nook closing member departs from from outer tube, and outer tube, which is retained on vein, carries out multiple dosing, and nook closing member returns
Contract and be locked in sheath, to play being used as closing nook closing member, so as to solve nook closing member exposed to the outer skill for easily accidentally injuring operator
Art problem.
In order to realize according to these purposes of the present utility model and further advantage, there is provided a kind of high-safety needle staying on vein,
Including：
Needle stand, its front end are provided with nook closing member, and the needle stand bottom is provided with projection, and the projection and the needle stand afterbody are neat
It is flat；
Sheath, axial direction is provided with accommodating cavity in it, and the bottom of the sheath axially offers and the accommodating cavity connects
Logical fluting, the needle stand are movably arranged in the accommodating cavity, and the projection is outwardly in the fluting；And
Lever, its bottom offer the locating slot being adapted with the projection and led with what the fluting was adapted
Block, the sheath are arranged on the lever, and the projection is fixed in the locating slot to cause pin through the fluting
Seat is linked with lever, and the guide block is fastened in the fluting；
Wherein, the guard leading end is provided with outer tube, outwards penetrates the outer tube nook closing member front-end selectivity
Or it is contained in the accommodating cavity.
Preferably, the needle stand is the column construction being adapted with the accommodating cavity, and the needle stand is internally provided with back
Blood observation window, the nook closing member sealing are fixed on the needle stand front end and connected with the blood back observation window, the blood back observation window
Closed with porous plug rear end.
Preferably, the guard leading end is provided with jacket joint, and the outer tube is removably set in the sheath and connect
On head, the internal diameter of the jacket joint is less than the external diameter of the needle stand.
Preferably, the guard leading end protrusion is provided with leader, and use is offered on the sheath of the handle end
In the perforate for observing the blood back observation window.
Preferably, the afterbody of the accommodating cavity is provided with some necks, is provided with the neck described for closing
The location-plate of accommodating cavity, arc sections that the location-plate includes being radially arranged in accommodating cavity, it is fixed in the neck
Fixed part and the breach that is opened on the fixed part, the gap position is corresponding with the slotting position, and breach is wide
Degree is consistent with groove width.
Preferably, the lever is provided with the arc groove being adapted with described sleeve pipe shape, the arc groove bottom
Portion offers the locating slot, and described sleeve pipe is arranged in the arc groove, and the projection is fixed on through the fluting
In the locating slot.
Preferably, through hole is offered on the arc groove of the locating slot rear end, the guide block is axially projecting to be set
Put on the arc groove, the guide block activity is fastened in the fluting, and the guide block front end is provided with positioned at described logical
Elastomer block in hole, the front end of the elastomer block are higher than rear end.
Preferably, the front end of the elastomer block and the locating slot are separated by a distance, and the distance is not less than the positioning
The thickness of plate, and the depth of the breach is less than the height of the elastomer block front end, the back-off of the elastomer block front-end selectivity
On the location-plate of breach afterbody.
Preferably, the needle stand is movably arranged in the accommodating cavity between the jacket joint and location-plate, and described
The total length of nook closing member and needle stand is less than jacket joint to the total length between location-plate.
Preferably, the lever both sides are provided with handle portion.
The utility model comprises at least following beneficial effect：
1st, after remaining needle use, nook closing member can be retracted in sheath, realize seal itself nook closing member, made with playing protection
With；
2nd, nook closing member retraction in place after, needle stand is locked on sleeve pipe, avoids maloperation from entering nook closing member exposed risk again
One step serves the effect of protection operator.
Further advantage, target and feature of the present utility model embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is superstructure schematic diagram of the present utility model；
Fig. 2 is polycrystalline substance schematic diagram of the present utility model；
Fig. 3 is explosive view of the present utility model；
Fig. 4 is jacket structure schematic diagram；
Fig. 5 is needle stand structure schematic diagram；
Fig. 6 is positioning plate structure schematic diagram；
Fig. 7 is lever structural representation；
Fig. 8 is sectional view of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of individual other elements or its combination.
The utility model electricity provides a kind of high-safety needle staying on vein, as shown in figures 1-8, including：Nook closing member 1, outer tube 2,
Needle stand 3, sheath 4 and lever 5.
Specifically, nook closing member 1 is arranged on the front end of needle stand 3, sheath 4 is the cavity type structure of cylindricality, axially arranged in sheath 4
There is accommodating cavity, the needle stand 3 is the column construction being adapted with the accommodating cavity, and the needle stand 4 is movably arranged on described
In accommodating cavity, the needle stand 3 is internally provided with blood back observation window 33, and the front end of needle stand 3 offers to be connected with blood back observation window 33
Logical passage 34, the needle point of nook closing member 1 is opening up, and the nook closing member 1 is fixed in the passage through passage 34 and sealing, institute
State nook closing member 1 to connect with the blood back observation window 33, the rear end porous plug 32 of blood back observation window 33 is closed, and porous plug 32 is ventilative
It is waterproof, for exclude the air in blood back observation window 33 and it is anti-hemostasis it is excessive, the bottom of the needle stand 3 is provided with projection
31, in the present embodiment, projection 31 is rectangular parallelepiped structure, and the afterbody of the projection 31 flushes with the afterbody of the needle stand 3.
The front end of sheath 4 is provided with jacket joint 41, and jacket joint 41 connects with accommodating cavity, and the outer tube 2 can
Dismounting is set on the jacket joint 41, and the bottom of the sheath 4 axially offers opens with what the accommodating cavity connected
Groove 42, the needle stand are movably arranged in the accommodating cavity, and the internal diameter of the jacket joint 41 is less than the outer of the needle stand 3
Footpath, it is spacing to be carried out to the front end of needle stand 3.The projection 31 it is outwardly in it is described fluting 42, in the moving process of needle stand 3,
Projection 31 is limited in fluting 42 and slided, and plays guide effect.Some necks are provided with the sheath of the accommodating cavity afterbody
43, neck 43 is located on the cross section of sheath, according to the length of nook closing member and needle stand, is provided with wherein one neck 43
For closing the location-plate 6 of the accommodating cavity, with to the tail end of needle stand 3 carry out it is spacing so that the needle stand 3 by limitation activity
In accommodating cavity between the jacket joint tail end and positioning front edge of board, and the total length of the nook closing member 1 and needle stand 3 is less than
Jacket joint afterbody is to the total length between location-plate so that accommodating cavity can house whole nook closing member completely, avoid nook closing member exposed
And hurt sb.'s feelings.In a kind of embodiment, arc sections 61 that the location-plate 6 includes being radially arranged in accommodating cavity, be fixed on it is described
Fixed part 62 in neck 83 and the breach 63 being opened on the fixed part 62, arc sections 61 are located at the horizontal stroke of accommodating cavity
On section, with to needle stand afterbody carry out it is spacing, the position of breach 63 with it is described fluting 42 position correspondences, and the width of breach 63 with
42 width of slotting are consistent, and after location-plate 6 is installed in place, the side wall of breach 63 flushes with 42 side walls of fluting.
Lever 5 is a understructure, and it is recessed that the upper surface of lever 5 is provided with the arc being adapted with the shape of described sleeve pipe 4
Groove 52, the bottom front of arc groove 52 offer with the projection 31 be adapted locating slot 53 and with it is described fluting 42
Adaptable elongated guide block 54, guide block 54 are located on the arc groove 52 of the rear end of locating slot 53, and described sleeve pipe 4 is arranged on the arc
On connected in star 52, and the projection 31 is fixed in the locating slot 53 through the fluting 42, to cause lever 5 and needle stand
3 and nook closing member 1 link, the guide block 54 be fastened on it is described fluting 42 and breach 63 in, play sleeve pipe 4 and moved on lever 5
Guide effect, improve stability；
Wherein, through hole 56 is offered on the arc groove 52 of the rear end of locating slot 53, the guide block 54 is vertically
Protrusion is arranged on the arc groove 52, and the activity of guide block 52 is fastened in the fluting 42, also, before the guide block 43
End is provided with the elastomer block 55 in the through hole 56, and elastomer block 55 can elasticity be movable up and down in through hole, a kind of embodiment
In, the front end of the elastomer block 55 is higher than rear end, and the front end of the elastomer block 55 and the locating slot 53 are separated by a distance,
The distance is not less than the thickness of the location-plate 6, and the usual distance is slightly larger than the thickness of location-plate 6, and the depth of the breach 63
Degree is less than the height of the front end of elastomer block 55, and before nook closing member 1 bounces back in place, elastomer block 55 and the activity of guide block 54 are being slotted and lacked
In mouthful, the front end of elastomer block 55 is moved to breach rear end, and elastomer block is upspring, because before the depth of breach 63 is less than the elastomer block 55
The height at end, after nook closing member 1 bounces back in place, the elastomer block front end is tipped upside down on the location-plate of breach afterbody, will be operated
Handle is locked in location-plate afterbody, while needle stand afterbody is locked in positioning prelaminar part, therefore needle stand can not move again, play nook closing member
Second protection effect, avoid maloperation by nook closing member exposed risk again.
In another embodiment, the front end of sheath 4 protrusion is provided with leader 45, the sheath of the handle end
On offer perforate 44 for observing the blood back observation window.
In another embodiment, the both sides of lever 5 are provided with handle portion 51, are easy to promote lever movement.
The high-safety needle staying on vein course of work of the present utility model is as follows：
Before puncture, the needle point of nook closing member 1 through outer tube 2 and outside, support in accommodating cavity front end, guide block by needle stand 3
In the fluting of positioning front edge of board, blood back observation window is located at perforate lower end, is easy to observe the blood back situation in blood back observation window,
When being punctured, the handle portion 51 of the both sides of hand-held operation handle 5 drives needle stand, and then promotes whole remaining needle to move forward, nook closing member
Related outer tube is pierced into vein, by observing whether blood back observation window blood back occurs to judge whether indwelling needle tubing has been pierced into
The vein blood vessel of patient, after puncture, propping up lever and promote handle forward, lever is moved rearwards relative to sheath,
Needle stand and nook closing member is driven to be moved rearwards in accommodating cavity, nook closing member progressively bounces back from outer tube into accommodating cavity, Zhi Daozhen
Core is fully retracted in accommodating cavity, and nook closing member departs from from outer tube, and outer tube indwelling is used for more to patient's progress in the blood vessel
Secondary administration repeatedly, both facilitated or safe, meanwhile, nook closing member can be retracted in sheath, realize seal itself nook closing member, protected with playing
Shield acts on.In the process, projection is moved rearwards with guide block and elastomer block along fluting, plays guide effect, with needle stand
With being moved rearwards for lever, guide block and elastomer block are progressively moved in breach, under the limitation of cut height, elastomer block by
To being pressed down against for breach, until needle stand afterbody supports location-plate, now, nook closing member is bounced back in place, and elastomer block front end is moved to
Breach rear end, depart from the constraint of breach, recover the height under nature, now, because the depth of breach 63 is less than the bullet
The height of the property front end of block 55, after nook closing member 1 bounces back in place, the elastomer block front end, which pops up, tips upside down on the described of breach afterbody
On location-plate, lever is locked in location-plate afterbody, while needle stand afterbody is locked in positioning prelaminar part, therefore needle stand can not
Move again, play the second protection effect of nook closing member, avoid maloperation by nook closing member exposed risk, while also remind the indwelling again
Pin had been used, and avoids reusing, causes cross-infection.
From the above mentioned, existing venous detaining needle is after use, when extracting remaining needle nook closing member, because nook closing member is exposed to
Outside, the skin for puncturing medical worker be present, the pollution to the body and neighbouring medicine equipment of medical personnel can be caused, add biography
Dye disease is spread apart the chance come, so as to threaten the health of related personnel.The utility model is directed to the technical problem
Improved, in high-safety needle staying on vein after use, nook closing member can be retracted in sheath, realize seal itself pin
Core, to play a protective role, avoid accidentally injuring operator, disease of avoiding infection；Meanwhile after nook closing member bounces back in place, needle stand is locked
On sleeve pipe, needle stand and nook closing member can not move again, avoid maloperation that nook closing member exposed risk again has been further functioned as into guarantor
Protect the effect of operator.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (10)
- A kind of 1. high-safety needle staying on vein, it is characterised in that including：Needle stand, its front end are provided with nook closing member, and the needle stand bottom is provided with projection, and the projection flushes with the needle stand afterbody；Sheath, axial direction is provided with accommodating cavity in it, and the bottom of the sheath axially offers what is connected with the accommodating cavity Fluting, the needle stand is movably arranged in the accommodating cavity, and the projection is outwardly in the fluting；AndLever, its bottom offer the locating slot being adapted with the projection and the guide block adaptable with the fluting, institute State sheath to be arranged on the lever, the projection is fixed in the locating slot through the fluting to cause needle stand and behaviour Make handle linkage, the guide block is fastened in the fluting；Wherein, the guard leading end is provided with outer tube, outwards penetrates the outer tube or appearance the nook closing member front-end selectivity Put in the accommodating cavity.
- 2. high-safety needle staying on vein as claimed in claim 1, it is characterised in that the needle stand is mutually to be fitted with the accommodating cavity The column construction answered, the needle stand are internally provided with blood back observation window, the nook closing member sealing be fixed on the needle stand front end and with The blood back observation window connection, the blood back observation window rear end is closed with porous plug.
- 3. high-safety needle staying on vein as claimed in claim 2, it is characterised in that the guard leading end is provided with jacket joint, The outer tube is removably set on the jacket joint, and the internal diameter of the jacket joint is less than the external diameter of the needle stand.
- 4. high-safety needle staying on vein as claimed in claim 3, it is characterised in that the guard leading end protrusion is provided with one Hand, the perforate for observing the blood back observation window is offered on the sheath of the handle end.
- 5. high-safety needle staying on vein as claimed in claim 4, it is characterised in that the afterbody of the accommodating cavity is provided with some Neck, the location-plate for closing the accommodating cavity is provided with the neck, and the location-plate includes being radially arranged in appearance The arc sections of intracavitary, the fixed part being fixed in the neck and the breach being opened on the fixed part are empty, it is described to lack Mouth position is corresponding with the slotting position, and gap width is consistent with groove width.
- 6. high-safety needle staying on vein as claimed in claim 5, it is characterised in that the lever is provided with and described sleeve pipe shape The adaptable arc groove of shape, the arc-shaped groove bottom offer the locating slot, and it is recessed that described sleeve pipe is arranged on the arc In groove, and the projection is fixed in the locating slot through the fluting.
- 7. high-safety needle staying on vein as claimed in claim 6, it is characterised in that the arc groove of the locating slot rear end On offer through hole, the guide block is axially projecting to be arranged on the arc groove, and the guide block activity is fastened on described open In groove, the guide block front end is provided with the elastomer block in the through hole, and the front end of the elastomer block is higher than rear end.
- 8. high-safety needle staying on vein as claimed in claim 7, it is characterised in that the front end of the elastomer block and the locating slot Separated by a distance, the distance is not less than the thickness of the location-plate, and the depth of the breach is less than the elastomer block front end Height, on the location-plate for tipping upside down on breach afterbody of the elastomer block front-end selectivity.
- 9. high-safety needle staying on vein as claimed in claim 8, it is characterised in that the needle stand is movably arranged on the sheath and connect In accommodating cavity between head and location-plate, and the total length of the nook closing member and needle stand is less than jacket joint between location-plate Total length.
- 10. high-safety needle staying on vein as claimed in claim 1, it is characterised in that the lever both sides are provided with handle portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362170.5U CN206777582U (en) | 2016-12-12 | 2016-12-12 | High-safety needle staying on vein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362170.5U CN206777582U (en) | 2016-12-12 | 2016-12-12 | High-safety needle staying on vein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206777582U true CN206777582U (en) | 2017-12-22 |
Family
ID=60704350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621362170.5U Active CN206777582U (en) | 2016-12-12 | 2016-12-12 | High-safety needle staying on vein |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206777582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stents window controlling system |
-
2016
- 2016-12-12 CN CN201621362170.5U patent/CN206777582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stents window controlling system |
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