CN208726430U - A kind of safety indwelling needle - Google Patents
A kind of safety indwelling needle Download PDFInfo
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- CN208726430U CN208726430U CN201720963222.2U CN201720963222U CN208726430U CN 208726430 U CN208726430 U CN 208726430U CN 201720963222 U CN201720963222 U CN 201720963222U CN 208726430 U CN208726430 U CN 208726430U
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- needle
- syringe
- soft
- puncture
- puncture needle
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Abstract
The utility model discloses a kind of safety indwelling needle, belongs to medical equipment technical field.The remaining needle of the utility model includes nut cap, clamping part, syringe, internal plug, soft needle, soft needle needle stand, puncture needle, puncture needle needle stand, hose, body and block set.With syringe by being slidably matched, clamping piece is mounted on syringe for nut cap, and nessa installed is in syringe, soft needle is integrally formed with soft needle needle stand, and in internal plug, which is fixedly mounted in syringe the soft needle guard；Puncture needle is fixedly connected with puncture needle needle stand and hose, and puncture needle is slidably matched with syringe, and puncture needle is slidably matched with soft needle；One end of body is snapped connection with puncture needle needle stand, and the other end and the block set bolt of body are fixed.After puncture needle is extracted out, the hook of syringe fall into the catching groove of puncture needle needle stand to form locking state, be wrapped in puncture needle in syringe.For the remaining needle of the utility model using simple and convenient, the inserting needle withdraw of the needle is convenient and efficient, production cost is low, has good generalization.
Description
Technical field
The utility model discloses a kind of safe remaining needle, belongs to medical equipment technical field.
Background technique
Remaining needle refer to once be pierced into when beating transfusion bottle for a long time blood vessel, can the syringe needle of long-time indwelling in the blood vessel, can subtract
The pain of light patient's multiple injection, especially for there is the patient of edema
Venous detaining needle is the common medical instrument in nursery work, have it is easy to use, reduce to patient's puncture time
Effect, puncture repeatedly when to decreasing clinical transfusion, reduce the puncture pain and clinical nursing staff of patient
Workload, thus be widely applied in current clinic.
It in existing venous detaining needle, generally comprises: puncture needle, remaining needle and transfusion catheter.In use, firstly, making
User is by the injection position of puncture needle connection remaining needle insertion patient, then, remaining needle is imported patient by puncturing needle guide
Blood vessel stays in remaining needle in patient vessel finally, puncture needle is extracted out, and is fixed with application pad pasting.In use, defeated by one
Liquid pipe, which is arranged in remaining needle, carries out drop.
Summary of the invention
The utility model discloses a kind of at low cost, easy-operating remaining needle of safety, and the hard needle tubing for reducing remaining needle is extracted
Afterwards, other people are stabbed or causes medical personnel cross infection, even reuse the case where remaining needle.
A kind of safety indwelling needle of the utility model include nut cap, hold assembly, syringe, internal plug, soft needle, soft needle needle stand,
Puncture needle, puncture needle needle stand, hose, body and block set.
The nut cap is slidably matched with syringe, and hold assembly is mounted on syringe, which is fixedly mounted in syringe, this is soft
Needle and soft needle needle stand are integrally formed, and the soft needle guard is in the internal plug, and soft needle is also fixedly mounted in syringe, the puncture needle with wear
Pricker needle stand and hose are fixedly installed togather, which is slidably matched with syringe, which is slidably matched with soft needle, should
One end of body is snapped connection with hose, and the other end and the block set bolt of the body are fixed.
The syringe front end be equipped with butterfly wing fixing seat, at least one peripherally disposed elastic slice of the syringe and at least one
Surface bulge, the elastic slice and the setting of surface bulge interval.
The lower surface of each elastic slice is equipped with a hook.
The outer surface of the puncture needle needle stand front end is equipped with the first catching groove, lug boss and the second catching groove.
Specifically, the nut cap is the cone that point diameter is small, rear end diameter is big, the front end setting of the nut cap outer surface
Flange collar is arranged in the inner surface of several vertical protrusions, the nut cap rear end.
Specifically, the hold assembly is equipped with butterfly-like cramping body and clamping protrusion, and the butterfly-like cramping body and clamping are convex
It rises and is integrally formed.
Specifically, the syringe is the cylinder that point diameter is small, rear end diameter is big；The syringe front end sets to the concave and syringe
The circular hole of concentric, the Circularhole diameter are greater than the diameter of soft needle needle tubing；It is prominent that the lid syringe leading exterior surface sets gradually first
Play portion, second connecting portion and third protrusion；First connecting portion, second connecting portion and the third protrusion and lid of the syringe front end
The flange collar of cap aft end interior surface is slidably matched.
Specifically, the butterfly wing fixing seat is linked up with equipped with multi-disc arc, one end of the butterfly wing fixing seat and syringe one
Body formed, the arc hook of the other end of the butterfly wing fixing seat is buckled in the boss of the circular hole of clamping protrusion.
Specifically, back end of syringe is equipped with block body.
Specifically, the length of the puncture needle is greater than the length of soft needle；The length of the syringe is greater than the length of puncture needle.
The invention also discloses the application methods of safety indwelling needle, open nut cap, puncture needle and soft needle and enter needs
Behind the position of processing, slide in and out body, puncture needle and puncture needle needle stand along far from syringe direction by pull block set,
Puncture needle gradually leaves soft needle and enters syringe inner cavity, and behind soft needle indwelling position to be treated, puncture needle needle stand gradually to
It moves afterwards, the hook under syringe elastic slice is fallen into the first catching groove, the block body of back end of syringe also buckles into the second of puncture needle needle stand and buckles
In slot, under the barrier effect of the first lug boss of puncture needle needle stand, so that axial displacement must not occur again for puncture needle needle stand.
The utility model has the advantages that
The containing needle structure of the utility model is simple, ingenious in design, by the way that many places flange collar, syringe is arranged in nut cap inner surface
First connecting portion, second connecting portion and third protrusion is arranged in front end, and nut cap and syringe force of sliding friction are big, so that nut cap is not
It can arbitrarily be scattered, the hidden danger for avoiding safety puncture needle from stabbing or pollute.
Remaining needle is retracted into syringe using rear, puncture needle tubing, and axial displacement will not occur again, so that puncture needle is pacified
Full storage, and then reduce security risk.
The remaining needle of the utility model facilitates other external injections using simple and convenient, the inserting needle withdraw of the needle is convenient and efficient
The remaining needle production cost of device or infusion, the utility model is low, has good generalization.
Detailed description of the invention
Fig. 1 remaining needle stereo-resolution figure
Fig. 2 remaining needle assembly structure diagram
Fig. 3 remaining needle top view
Sectional view after the assembling of Fig. 4 remaining needle
Fig. 5 nut cap sectional view
Fig. 6 clamping part perspective view
Fig. 7 syringe schematic perspective view
The face remaining needle A-A sectional view when Fig. 8 is not used
The face remaining needle B-B sectional view when Fig. 9 is not used
Remaining needle stereoscopic schematic diagram when Figure 10 is used
Figure 11 uses the face rear remaining needle A-A diagrammatic cross-section
Figure 12 uses rear remaining needle B-B diagrammatic cross-section.
Appended drawing reference
1- nut cap, 2- hold assembly, 3- syringe, 4- internal plug, the soft needle of 5-, 6- soft needle seat, 7- puncture needle, 8- puncture needle needle
Seat, 9- hose, 10- body, 11- block set
21- clamping piece butterfly portion, 22- clamping piece protrusion
31- first connecting portion, 32- second connecting portion, 33- third protrusion, 34 butterfly wing fixing seats, 35- elastic slice, 36-
Block body, 37- protrusion of surface, 38- hook
The first catching groove of 81-, the first lug boss of 82-, the second catching groove of 83-
Specific embodiment
The technical solution of the utility model is further elaborated below by way of specific embodiment, involved in it is specific
The restriction not as technical solutions of the utility model is stated, those skilled in the art are done on the basis of understanding technical solution
Any improvement belong to the protection scope of the utility model.
Technical solutions of the utility model and embodiment meaning front end refer to the consistent direction in remaining needle needle point direction, then
End is the opposite direction of front end.
Containing needle structure as shown in Figure 1, Figure 2, Figure 3 and Figure 4.A kind of safety indwelling needle includes nut cap (1), hold assembly
2, syringe 3, internal plug 4, soft needle 5, soft needle needle stand 6, puncture needle 7, puncture needle needle stand 8, hose 9, body 10 and block set 11.
The nut cap 1 is slidably matched with syringe 3, and hold assembly 2 is mounted on syringe 3, and internal plug 4 is fixed in syringe 3, soft needle
5 are fixedly mounted with soft needle needle stand 6, which is fixedly mounted in syringe 3, and the puncture needle 7 and puncture needle needle stand 8 and hose 9 are consolidated
Dingan County is fitted together, which is slidably matched with syringe 3, while puncture needle 7 is slidably matched with soft needle 5, and the one of the body 10
End is snapped connection with puncture needle needle stand 8, and the other end and 11 bolt of block set of the body 10 are fixed.
As shown in Figure 5: nut cap 1 is the cone that point diameter is small, rear end diameter is big, 1 appearance of nut cap in the present embodiment
Several vertical protrusions are arranged in the front end in face, and the inner surface of 1 rear end of nut cap sets gradually multiple flange collars.It is arranged in nut cap outer surface
Protrusion is the skin-friction force in order to increase nut cap.
As shown in Figure 6: hold assembly 2 is equipped with butterfly-like cramping body 21 and clamping protrusion 22, butterfly-like folder in the present embodiment
It holds body 21 and clamping protrusion 22 is integrally formed, clamping protrusion is equipped with a circular hole being recessed inwardly.
As shown in Figure 7: the syringe 3 of the present embodiment is the cylinder that point diameter is small, rear end diameter is big.The syringe front end is inside
The recessed circular hole with syringe concentric, the Circularhole diameter are greater than the diameter of soft needle needle tubing.The lid syringe leading exterior surface is successively
First connecting portion 31, second connecting portion 32 and third protrusion 33, the first connecting portion 31, second connecting portion 32 and third are set
Protrusion 33 and the flange collar of nut cap aft end interior surface are slidably matched.Above-mentioned nut cap aft end interior surface and syringe leading exterior surface are set
Meter is to increase mantle friction, so that nut cap is not easy to fall, and then avoids puncture needle from stabbing other people and reduces cross-infection.
As shown in Figure 4: the syringe front end of the present embodiment is equipped with butterfly wing fixing seat 34, which is equipped with more
Piece arc hook.One end of the butterfly wing fixing seat 34 and syringe 3 are integrally formed, the other end buckle of the butterfly wing fixing seat 34
In the boss of clamping protrusion 22.
Peripherally disposed two elastic slices 35 of the syringe of the present embodiment and two surface bulges 37, elastic slice 35 and surface are convex
Play 37 interval settings.Elastic slice and syringe are to be integrally formed, and one side of elastic slice is connected with syringe, and another three side is not attached to syringe,
Elastic slice is allowed to do the deformation of certain nargin in radial direction in this way.The rear end of the syringe at place opposite with elastic slice forms a gear
Body 36.On syringe barrel surface, integrally formed three surface bulges are the mantle frictions in order to increase syringe, work as medical staff
Hand-held syringe will not slide easily.
As seen from Figure 8: first in the first component 38 of the remaining needle elastic slice of the present embodiment and puncture needle needle stand surface
Catching groove 81, lug boss 82 and the second catching groove 83 are coaxial arrangement.
The remaining needle of the present embodiment is equipped with a component 38 in the rear end lower surface of each elastic slice 35.In puncture needle needle stand
The outer surface of front end is successively arranged the first catching groove 81, lug boss 82 and the second catching groove 83.First catching groove 81, protrusion 82 and second
Catching groove 83 is coaxial arrangement.As seen from Figure 11, when remaining needle in use, the first component 38 of syringe elastic slice lower surface can be just
It is embedded in well in the first catching groove 81, the block body 36 of back end of syringe also can be just embedded in the second catching groove 83.
The length of the puncture needle 7 of the remaining needle of the present embodiment is greater than the length of soft needle 5；The length of syringe 3 is greater than puncture needle 7
Length.Design, which enables puncture needle through soft needle, in this way and exposed portion puncture needle, puncture needle can easily enter patient needs
Position to be processed.And when puncture needle is exited into completely in syringe, syringe length is greater than puncture needle, and such design is so that wear
Pricker " can leave with a happy ending ".
When the remaining needle of the present embodiment is not used, puncture needle 7 exposes needle point, puncture needle needle stand 8 completely through soft needle 5
Major part be also coated in syringe 3,1 condom of nut cap is on syringe 3.
When specifically used, after opening nut cap 1, puncture needle 7 and soft needle 5 enter position to be treated, pass through pull set
Seat 11 slides in and out body 10, puncture needle 7 and puncture needle needle stand 8 along far from 3 direction of syringe, and puncture needle 7 gradually leaves
Soft needle and enter syringe inner cavity, and 5 indwelling of soft needle is in the blood vessels.Puncture needle needle stand 8 gradually moves backward, elastic slice 35 is in puncture needle
The lower deformation occurred radially upward of protrusion effect on 8 surface of needle stand, then gradually pull block set 11, under syringe elastic slice 35
Hook 38 is fallen into the first catching groove 81, the block body 36 of back end of syringe also buckles into the second catching groove 83 of puncture needle needle stand, is being punctured
Under the barrier effect of first lug boss 82 of needle needle stand, so that axial displacement must not occur again for puncture needle needle stand.Pass through medicine glue
Butterfly-like clamping part is fixed on patient skin surface by band.
The containing needle structure of the present embodiment is simple, nut cap, aid component, syringe, soft needle and soft needle needle stand, puncture needle with wear
Pricker is all integrally formed structure, so that it is low to make each component costs.After remaining needle use, puncture needle tubing is retracted into needle completely
In cylinder, and then form a kind of remaining needle of safeguard construction.Above-mentioned remaining needle is easy to operate, has good generalization.
Claims (8)
1. a kind of safety indwelling needle, it is characterised in that: it includes nut cap (1), hold assembly (2), syringe (3), internal plug (4), soft
Needle (5), soft needle needle stand (6), puncture needle (7), puncture needle needle stand (8), hose (9), body (10) and block set (11)；
The nut cap (1) is slidably matched with syringe (3), which is mounted on syringe (3), which is fixedly mounted on
In syringe (3), the soft needle (5) and soft needle needle stand (6) are integrally formed, which is sleeved in internal plug (4), while the soft needle
(5) it is slidably matched with syringe (3), which is fixedly installed togather with puncture needle needle stand (8) and hose (9), the puncture
Needle (7) is slidably matched with syringe (3), which is slidably matched with soft needle (5), one end of the body (10) and puncture needle
Needle stand (8) snaps connection, and the other end and block set (11) bolt of the body (10) are fixed；
The syringe front end is equipped with butterfly wing fixing seat (34), at least one peripherally disposed elastic slice (35) of the syringe and extremely
A few surface bulge (37), the elastic slice (35) and the setting of surface bulge (37) interval；The lower surface of each elastic slice (35)
Equipped with a hook (38)；
The outer surface of puncture needle needle stand (8) front end is equipped with the first catching groove (81), lug boss (82) and the second catching groove (83).
2. safety indwelling needle according to claim 1, it is characterised in that: the nut cap (1) is that point diameter is small, rear end is straight
Several vertical protrusions are arranged in the front end of the big cone of diameter, nut cap (1) outer surface, and the inner surface of nut cap (1) rear end is successively
Multiple flange collars are set.
3. safety indwelling needle according to claim 1, it is characterised in that: the hold assembly (2) is equipped with butterfly-like clamping
Body (21) and clamping are raised (22), and the butterfly-like cramping body (21) and clamping raised (22) are integrally formed.
4. safety indwelling needle according to claim 1, it is characterised in that: the syringe (3) is that point diameter is small, rear end is straight
The big cylinder of diameter；The circular hole that the syringe front end sets to the concave with syringe concentric, the Circularhole diameter are greater than the diameter of soft needle needle tubing.
5. safety indwelling needle according to claim 1, it is characterised in that: the butterfly wing fixing seat (34) is equipped with multi-disc arc
Shape hook, one end and syringe (3) of the butterfly wing fixing seat (34) are integrally formed, the other end of the butterfly wing fixing seat (34)
Arc hook is buckled in the boss for clamping raised (22) circular hole.
6. safety indwelling needle according to claim 1, it is characterised in that: syringe (3) rear end is equipped with block body (36).
7. safety indwelling needle according to claim 1, it is characterised in that: the length of the puncture needle (7) is greater than soft needle (5)
Length.
8. safety indwelling needle according to claim 1, it is characterised in that: the length of the syringe (3) is greater than puncture needle (7)
Length.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720963222.2U CN208726430U (en) | 2017-08-03 | 2017-08-03 | A kind of safety indwelling needle |
| PCT/CN2017/095961 WO2019024073A1 (en) | 2017-08-03 | 2017-08-04 | Safety indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720963222.2U CN208726430U (en) | 2017-08-03 | 2017-08-03 | A kind of safety indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208726430U true CN208726430U (en) | 2019-04-12 |
Family
ID=66020098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720963222.2U Active CN208726430U (en) | 2017-08-03 | 2017-08-03 | A kind of safety indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208726430U (en) |
-
2017
- 2017-08-03 CN CN201720963222.2U patent/CN208726430U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |