CN108939206A - Easily fixed aseptic anti-reflux remaining needle - Google Patents
Easily fixed aseptic anti-reflux remaining needle Download PDFInfo
- Publication number
- CN108939206A CN108939206A CN201810882798.5A CN201810882798A CN108939206A CN 108939206 A CN108939206 A CN 108939206A CN 201810882798 A CN201810882798 A CN 201810882798A CN 108939206 A CN108939206 A CN 108939206A
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- Prior art keywords
- fixed
- core
- remaining needle
- main channel
- needle
- Prior art date
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- 230000000151 anti-reflux effect Effects 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 230000000903 blocking effect Effects 0.000 claims description 31
- 208000035126 Facies Diseases 0.000 claims description 16
- 238000001802 infusion Methods 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 229940079593 drug Drugs 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 239000008280 blood Substances 0.000 abstract description 18
- 210000004369 blood Anatomy 0.000 abstract description 18
- 230000023555 blood coagulation Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 14
- 241000894006 Bacteria Species 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 208000007536 Thrombosis Diseases 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 230000035606 childbirth Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000001194 anti-hemostatic effect Effects 0.000 description 1
- 238000009455 aseptic packaging Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- 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)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides an easily-fixed sterile anti-backflow indwelling needle, which mainly comprises an elastic belt, a main channel, an indwelling hose, a puncture steel needle, fixing components positioned on two sides of the main channel, a plugging core and a plugging core catheter, wherein the plugging core is positioned in the elastic belt and can freely enter and exit the indwelling hose along with the stretching and natural retraction of the elastic belt so as to enable the indwelling hose to be in a plugged or opened state, and the plugging core catheter is positioned in the main channel and used for guiding the plugging core. The sterile anti-reflux indwelling needle can block the whole indwelling hose in a sterile sealing state, and completely avoids the phenomena of blood return and blood coagulation.
Description
Technical field
The present invention relates to technical field of medical equipment, and in particular to a kind of to be easy to fixed sterile anti-reflux remaining needle.
Background technique
Remaining needle is the common infusion device of one of clinical application.It is punctured by single, and in subsequent treatment
It is interior to repeatedly use the mode being infused, the pain of sufferer and the workload of medical staff are alleviated, while also reducing
The probability of happening of the accident of puncture.
Since its Preserving time is on sufferer body, and its flexible needle tube portion is directly contacted with the blood of sufferer.Therefore,
The flexible needle tubing of remaining needle usually using Teflon etc. there is the material of biocompatibility to make.There is scholar studies have shown that protecting
It holds in the piercing portions sterile and clean situation of surrounding skin relatively, as long as no plugging and leakage, the indwelling of remaining needle occurs
Time was up to 7 days or more.Longest indwelling time is 27 days in clinical observation record.But in fact, infusion tempus intercalare, pole
Be easy to appear blood backflow and as the blood coagulation of draining blood and caused by plugging phenomenon, thus make remaining needle lose indwelling meaning
Justice.
In addition, remaining needle is also widely present the problem that can not be fixed for a long time in use.Such issues that main table
Slight illness is more unbearably by during patient largely perspires or needs persistent movement now.In most typical such as obstetrical ward,
Childbirth is simultaneously one of mode of operation very universal at present using the assisted delivery process of the defeated oxytocins of remaining needle.Puerpera is dividing
Severe pain is endured during childbirth, is perspired with a large amount of, and needs to continue to exert oneself.In this case, conventional pad pasting is solid
Determining mode can only often maintain one or two hour, and medical staff is caused to need frequently to retighten, and even replacement is stayed
Set needle.
Remaining needle in the prior art is broadly divided into two kinds of A type (style of opening) and Y type (enclosed type).Wherein A type remaining needle
Tube sealing is carried out frequently with tube-sealing solution when being infused interval, mode of operation is to inject tube-sealing solution in calparine cap by syringe,
The withdraw of the needle when injecting tube-sealing solution prevents from causing swabbing action and blood back to blood when the withdraw of the needle, reuses folder after having injected tube-sealing solution
Sub-folder lives remaining needle extension tube.But the mode of operation that marginal not penetrates the side withdraw of the needle is excessively complicated, and easily makes a fault and cause blood back.
Non-return for Y type remaining needle and tube sealing research are more, such as flow-stopping clip or current limiter is arranged in connecting tube
The anti-return blood of mode, but this method is similar with the tube sealing method of A type remaining needle, can not solve injection tube-sealing solution excessively complexity
Problem.
Chen Dajin etc. devises a kind of remaining needle (CN105935460A) with fluid stopping switch, passes through the spiral of dc switch
The capsule pipe 8 for promoting (closed state) compressing soft needle upstream of indwelling, the fluid path realization cut off between indwelling hose and outside stop
Stream.The fluid stopping switch of the program is substantially still a kind of flow-stopping clip, but its fluid stopping point is more forward compared to conventional flow-stopping clip,
Blood can not backflow into remaining needle needle body.But the program, which needs to rely on, carrys out fluid stopping to the compressing of capsule pipe, the spiral shell outside needle body
Unscrewing, which is closed, to be needed to reserve outside fixed pad pasting, and in order to screw, and remaining needle size is bigger, results in more complicated fixation
Problem, also, the program does not still account for the problem of blood backflow enters indwelling hose.
Summary of the invention
For the above-mentioned technical problems in the prior art, the present invention provides a kind of sterile anti-reflux indwelling being fixed easily
Needle.It is easy to be bonded indwelling position and fixes, while can prevent blood reflux from entering indwelling hose, thus thoroughly prevent blood coagulation,
The formation of thrombus.
" front end " is employed herein, " end ", " tail end ", " downstream " etc. limits.When wherein, to be infused, medical fluid stream
Dynamic direction is front end and downstream.
To achieve the above object, the present invention provides the following technical solutions.
A kind of sterile anti-reflux remaining needle being fixed easily, including needle body component 1, fixation kit 2, piercing assembly 3 and tube sealing
Component 4.Wherein needle body component includes main channel 11, infusion connector 12, indwelling hose 13, soft rubber stopper 14, indwelling hose 13 and soft
Rubber plug 14 is respectively fixedly disposed at the both ends of main channel 11, and infusion connector 12 is arranged on the side wall of main channel 11 to be connected with outside
It is logical；Fixation kit 2 includes the multiple fins being fixed on 11 lateral wall of main channel, and the side of the fin is coated with gluing
Agent, gluing side are equipped with covering, and when use, which removes directly attach after covering, is fixed at indwelling；Piercing assembly 3 includes
The fixed plug of puncture needle 31, puncture needle 32, end cap 33, needle handle (not shown), steel needle casing (not shown), steel needle
31 tail end is fixed on the fixed plug 32 of puncture needle, and the fixed plug 32 of puncture needle is embedded in end cap 33, and the fixation of end cap 33 is set
The tail end in steel needle casing is set, the steel needle casing is slidably set in the outside of main channel 11, and can be from main channel 11
It removes；The tube sealing component 4 includes elastic webbing 42, blocks core 44, blocks core conduit 41, sealing diaphragm 47, the elastic webbing 42
One end is fixed on the side wall of main channel 11, and the other end can be stretched freely, internal to have a hollow groove 43, main channel 11
Side wall on be provided with the circular hole 48 being connected to 43 one end of hollow groove, the closure core 44 is solid flexible material, is closed
It is arranged in the hollow groove 43 of the elastic webbing 42, the closure core 44 can protrude into master by the circular hole 48 on 11 side wall of main channel
In channel 11, the circular hole 48 is located at the connection of the side in main channel 11 and blocks core conduit 41, described to block the another of core conduit 41
One end connects the end of indwelling hose 13, and when 42 natural shrinking of elastic webbing, closure core 44 can be passed through by retraction elastic force and be blocked
Core conduit 41 enters in indwelling hose 13, prevents blood reflux, when elastic webbing 42 stretches, blocks core 44 by from indwelling hose 13
Middle extraction, open infusion channel.The closure core conduit 41 is close to the side of indwelling hose 13 equipped with strip-shaped hole 45 and for supporting
By the endless belt of the not aperture of 13 end of indwelling hose, enter indwelling hose convenient for medical fluid, blocks core conduit 41 close to soft rubber stopper
14 sides are provided with the circular open 49 passed through for puncture needle 31.
Preferably, the closure core conduit 41 includes straight pipe 411 and arc pipeline section 412, wherein the one of arc pipeline section 412
End is connected to the top (close to the side of soft rubber stopper) of straight pipe 411, and the other end is connected with the circular hole 48 on 11 side wall of main channel
It is logical；The lower section (i.e. close to the side of indwelling hose) of straight pipe 411 is puncture needle 31 and the common-use tunnel for blocking core 44, straight tube
The upper section of section 411 is the channel of puncture needle 31, and arc pipeline section 412 is the channel for blocking core 44；The sealing diaphragm 47 is located at
In arc pipeline section 412.
Preferably, the distal end (one end far from main channel) of the hollow groove 43 is equipped with fixed structure 46, so as to make
Core 44 must be blocked and be extracted or be pushed into indwelling hose 13 with the stretching or retraction of elastic webbing 42.
Preferably, the fixed structure 46 is the fixing groove bigger compared to the rest part diameter of hollow groove 43, described
The tail end for blocking core 44 has one section of larger diameter section to match with the fixing groove, to make the tail end for blocking core 44 by card
In fixing groove.
Preferably, the closure core 44 is arranged to, and when the elastic webbing 42 bounces back naturally, the front end for blocking core 44 is proper
Sports-like to indwelling hose 13 opening, thus by entire indwelling hose 13 blood and medical fluid be discharged, closure entirely stay
Set hose 13；And when the elastic webbing 42 is stretched to maximum length, the front end for blocking core 44, which remains in, blocks core conduit
In the 41 arc pipeline section 412 and downstream of sealing diaphragm 47, to prevent from blocking core 44 from closure core conduit 41 and sealing diaphragm
Deviate from 47 aperture.
Preferably, a side flap of elastic webbing 42 and fixation kit 2 is closed on and is arranged in parallel, and the distal end of elastic webbing 42 is (remote
Side from main channel) it is provided with fixed part 50, it is provided on the side flap closed on elastic webbing 42 and the fixed part 50
The facies posterior hepatis to match, the facies posterior hepatis are radially extended along the side flap, so that the elastic webbing 42 is in natural shrinking and most
It can be fixed by being formed between fixed part 50 and facies posterior hepatis in the entire scope stretched greatly.
Preferably, the fixed part 50 is hook or adhesive sticker or velcro.
Preferably, the fin of the fixation kit 2 is flexible material, and the covering of glue applied side is stiff sheet, fin
Gluing side is adhered on the stiff sheet, so that elastic webbing 42 can keep tensional state when unused, makes to seal
Stifled core 44 exits the straight pipe 411 for blocking core conduit 41, concedes 411 channel of straight pipe for puncture needle 31.
Preferably, the elastic webbing 42 is the foldable material of silicone rubber material or interior packet spring.
Preferably, the remaining needle is using aseptic packaging, such as sterile plastic packaging bag etc..
Preferably, the diameter for blocking core 44 is less than the internal diameter of indwelling hose 13, to prevent from drawing again after closure
The swabbing action to blood is formed during stretching elastic webbing 42.
Preferably, the straight pipe top for blocking core conduit 41 is equipped with soft rubber stopper, after puncture needle 31 exits, medical fluid
It cannot enter from the circular open 49 on top for blocking core conduit 41.
Preferably, strip-shaped hole 45, and the closure core are offered on the whole straight pipe for blocking core conduit 41
Fixation is pasted with filter membrane on the inner wall of conduit 41, enters in main channel 11 to prevent haemocyte from passing through strip-shaped hole 45.
The specifically used method of the sterile anti-reflux remaining needle of the present invention being fixed easily is as follows: dismantling the nothing being packed for
Bacterium plastic packaging bag, take out remaining needle, at this time the fin of fixation kit 2 answer it is intact be adhered on stiff sheet, elastic webbing 42 is in
Tensional state, and the facies posterior hepatis on a side flap is fixed on by the fixed part 50 of its distal end, puncture needle 31 is plugged in indwelling
Inside hose 13, and the tip portion of the puncture needle 31 is exposed outside indwelling hose；It is walked according to the puncture of conventional remaining needle
Suddenly it is punctured, extracts steel needle out after the completion of puncturing；Two side flaps of fixation kit 2 are torn up from both ends, it is thin to disengage it from rigidity
It takes stiff sheet after plate away, fin glue applied side is attached at human body indwelling, at this point, elastic webbing 42 is still within tensional state；
Sterile film is attached at the point of puncture of indwelling hose 13 and skin；According to the mode of operation liquid medicine injection of conventional remaining needle；Medical fluid
When injection need to be interrupted, fixed part 50 and facies posterior hepatis are separated, so that elastic webbing 42 is slowly bounced back, bouncing back to after nature will fix again
Portion 50 is fixed in conjunction with facies posterior hepatis, injects tube-sealing solution from infusion connector 12 optionally at this time further to improve tube sealing effect
Fruit.
The present invention is introduced directly into indwelling hose 13 by that will block core 44, so that anti-Hemostatic Oral Liquid enters indwelling hose 13 and master
In channel 11, blood backflow is blocked, so that no matter will not in the main channel of remaining needle 11 or in indwelling hose 13
There is blood coagulation or thrombus, meanwhile, blocking core conduit 41 by setting realizes the guidance to flexible blockage core 44, can be suitable
Smooth disengaging indwelling hose 13, and the elastic webbing 42 of integral hermetic setting will then block core 44 and be completely enclosed in remaining needle
Portion avoids during pull blocks core and brings bacterium into.In addition, in actual use, it is also an option that the collocation of property is conventional
Tube-sealing solution blocks the plugging gap between core 44 and indwelling hose 13 with further filling, improves plugging effect.Of the invention
Remaining needle carries fixation kit, and the fixation kit is wholely set with remaining needle, the remaining needle compared to routine without fixation kit
For can be effectively improved during indwelling because patient twisting etc. factors due to caused by remaining needle misplace, and then extract indwelling it is soft
The phenomenon that pipe 13.
Detailed description of the invention
Further to disclose particular technique content of the invention, with reference to embodiments and attached drawing is described in detail, in which:
Fig. 1 is the overall schematic of the present invention for being easy to fixed sterile anti-reflux remaining needle；
Fig. 2 is the schematic diagram for blocking core conduit；
Fig. 3 is the schematic diagram of elastic webbing；
Fig. 4 is the cross-sectional view of elastic webbing；
Fig. 5 is the partial enlarged view of region A in Fig. 1；
Fig. 6 is the partial enlarged view of region B in Fig. 1.
In figure: needle body component 1, fixation kit 2, piercing assembly 3, tube sealing component 4, main channel 11, infusion connector 12, indwelling
The fixed plug 32 of hose 13, soft rubber stopper 14, puncture needle 31, puncture needle, end cap 33 block core conduit 41, are elastic webbing 42, hollow
Slot 43 blocks core 44, strip-shaped hole 45, fixed structure 46, sealing diaphragm 47, circular hole 48, circular open 49, fixed part 50.
Specific embodiment
Technical solution of the present invention is further described with reference to embodiments.
As shown in figures 1 to 6, a kind of sterile anti-reflux remaining needle being fixed easily, including needle body component 1, fixation kit 2, puncture
Component 3 and tube sealing component 4.Wherein needle body component includes main channel 11, infusion connector 12, indwelling hose 13, soft rubber stopper 14, indwelling
Hose 13 and soft rubber stopper 14 are respectively fixedly disposed at the both ends of main channel 11, and infusion connector 12 is arranged on the side wall of main channel 11
And it is connected to outside；Fixation kit 2 includes the multiple fins being fixed on 11 lateral wall of main channel, the side of the fin
It is coated with adhesive, gluing side is equipped with covering, and when use, which removes directly attach after covering, is fixed at indwelling；Puncture group
Part 3 (does not show including puncture needle 31, the fixed plug 32 of puncture needle, end cap 33, needle handle (not shown), steel needle casing in figure
Out), the tail end of steel needle 31 is fixed on the fixed plug 32 of puncture needle, and the fixed plug 32 of puncture needle is embedded in end cap 33, end cap
33 are fixed at the tail end of steel needle casing, and the steel needle casing is slidably set in the outside of main channel 11, and can be from master
It is removed on channel 11；The tube sealing component 4 includes elastic webbing 42, blocks core 44, blocks core conduit 41, sealing diaphragm 47, described
42 one end of elastic webbing is fixed on the side wall of main channel 11, and the other end can be stretched freely, internal to have a hollow groove 43,
The circular hole 48 being connected to 43 one end of hollow groove is provided on the side wall of main channel 11, the closure core 44 is solid flexible material,
It is closed in the hollow groove 43 that the elastic webbing 42 is arranged in, and the closure core 44 can pass through the circular hole on 11 side wall of main channel
48 protrude into main channel 11, and the circular hole 48 is located at the connection of the side in main channel and blocks core conduit 41, the closure core conduit
The end of 41 other end connection indwelling hose 13, when 42 natural shrinking of elastic webbing, blocking core 44 can wear by retraction elastic force
It crosses closure core conduit 41 to enter in indwelling hose 13, prevents blood reflux, when elastic webbing 42 stretches, block core 44 by from indwelling
It is extracted out in hose 13, open infusion channel.The closure core conduit 41 close to the side of indwelling hose 13 be equipped with medicine liquid channel and
For the endless belt of the not aperture against 13 end of indwelling hose, enters indwelling hose convenient for medical fluid, it is close to block core conduit 41
14 side of soft rubber stopper is provided with the circular open 49 passed through for puncture needle 31.
Preferably, the closure core conduit 41 includes straight pipe 411 and arc pipeline section 412, wherein the one of arc pipeline section 412
End is connected to the middle and upper part (close to the side of soft rubber stopper) of straight pipe 411, the other end and 48 phase of circular hole on 11 side wall of main channel
Connection；The lower section (i.e. close to the side of indwelling hose) of straight pipe 411 is the common-use tunnel of puncture needle 31 and closure core 44, directly
The upper section of pipeline section 411 is the channel of puncture needle 31, and arc pipeline section 412 is the channel for blocking core 44；The sealing diaphragm 47 is set
In arc pipeline section 412.The lower part of the straight pipe 411 and the inner sidewall of main channel 11 are to against the medicine liquid channel opens up
On the side wall of 411 lower part of straight pipe.
Preferably, the medicine liquid channel is strip-shaped hole 45.
Preferably, the distal end (one end far from main channel) of the hollow groove 43 is equipped with fixed structure 46, so as to make
Core 44 must be blocked and be extracted or be pushed into indwelling hose 13 with the stretching or retraction of elastic webbing 42.
Preferably, the fixed structure 46 is the fixing groove bigger compared to the rest part diameter of hollow groove 43, described
The tail end for blocking core 44 has one section of larger diameter section to match with the fixing groove, to make the tail end for blocking core 44 by card
In fixing groove.
Preferably, the closure core 44 is arranged to, and when the elastic webbing 42 bounces back naturally, the front end for blocking core 44 is proper
Sports-like to 13 front end of indwelling hose opening, thus by entire indwelling hose 13 blood and medical fluid be discharged, block it is whole
A indwelling hose 13；And when the elastic webbing 42 is stretched to maximum length, the front end for blocking core 44 remains in closure core
In the arc pipeline section 412 of conduit 41 and it is located at the downstream for sealing diaphragm 47, to prevent from blocking core 44 from closure 41 He of core conduit
It seals and deviates from the aperture of diaphragm 47.
Preferably, a side flap of elastic webbing 42 and fixation kit 2 is closed on and is arranged in parallel, and the distal end of elastic webbing 42 is (remote
Side from main channel) it is provided with fixed part 50, it is provided on the side flap closed on elastic webbing 42 and the fixed part 50
The facies posterior hepatis to match, the facies posterior hepatis are radially extended along the side flap, so that the elastic webbing 42 is in natural shrinking and most
It can be fixed by being formed between fixed part 50 and facies posterior hepatis in the entire scope stretched greatly.
Preferably, the fixed part 50 is hook or adhesive sticker or velcro.
Preferably, the fin of the fixation kit 2 is flexible material, and the covering of glue applied side is stiff sheet, fin
Gluing side is adhered on the stiff sheet, so that elastic webbing 42 can keep tensional state when unused, makes to seal
Stifled core 44 exits the straight pipe 411 for blocking core conduit 41, concedes 411 channel of straight pipe for puncture needle 31.
Preferably, the glue applied side of the fin positioned at 11 two sides of main channel is covered by the same stiff sheet.
Preferably, the elastic webbing 42 is the foldable material of silicone rubber material or interior packet spring.
Preferably, the diameter for blocking core 44 is less than the internal diameter of indwelling hose 13, to prevent from drawing again after closure
The swabbing action to blood is formed during stretching elastic webbing 42.
Preferably, the straight pipe top for blocking core conduit 41 is equipped with soft rubber stopper, after puncture needle 31 exits, medical fluid
It cannot enter from the circular open 49 on top for blocking core conduit 41.
Preferably, strip-shaped hole 45, and the closure core are offered on the whole straight pipe for blocking core conduit 41
Fixation is pasted with filter membrane on the inner wall of conduit 41, enters in main channel 11 to prevent haemocyte from passing through strip-shaped hole 45.
The specifically used method of the sterile anti-reflux remaining needle of the present invention being fixed easily is as follows: dismantling the nothing being packed for
Bacterium plastic packaging bag, take out remaining needle, at this time the fin of fixation kit 2 answer it is intact be adhered on stiff sheet, elastic webbing 42 is in
Tensional state, and the facies posterior hepatis on a side flap is fixed on by the fixed part 50 of its distal end, puncture needle 31 is plugged in indwelling
Inside hose 13, and the tip portion of the puncture needle 31 is exposed outside indwelling hose；It is walked according to the puncture of conventional remaining needle
Suddenly it is punctured, extracts steel needle out after the completion of puncturing；Two side flaps of fixation kit 2 are torn up from both ends, it is thin to disengage it from rigidity
It takes stiff sheet after plate away, fin glue applied side is attached at human body indwelling, at this point, elastic webbing 42 is still within tensional state；
Sterile film is attached at the point of puncture of indwelling hose 13 and skin；According to the mode of operation liquid medicine injection of conventional remaining needle；Medical fluid
When injection need to be interrupted, fixed part 50 and facies posterior hepatis are separated, so that elastic webbing 42 is slowly bounced back, bouncing back to after nature will fix again
Portion 50 is fixed in conjunction with facies posterior hepatis, injects tube-sealing solution from infusion connector 12 optionally at this time further to improve tube sealing effect
Fruit.
Claims (10)
1. a kind of be easy to fixed sterile anti-reflux remaining needle, including needle body component 1, fixation kit 2, piercing assembly 3, tube sealing group
Part 4, the needle body component 1 include main channel 11, infusion connector 12, indwelling hose 13, soft rubber stopper 14, it is characterised in that: described
Fixation kit 2 includes the sticking fin for being fixed on 11 two sides of main channel；The tube sealing component 4 includes being located in main channel 11
Closure core conduit 41 and the elastic webbing 42 outside main channel 11, one end of the elastic webbing 42 and block core conduit 41 and connect
It is logical, in be equipped with and block core 44, the core 44 that blocks can be by the retraction elastic force of elastic webbing 42 in the guidance for blocking core conduit 41
It is lower to enter in indwelling hose 13, block the infusion channel of indwelling hose 13.
2. being easy to fixed sterile anti-reflux remaining needle as described in claim 1, it is characterised in that: the closure core conduit 41
The inside of main channel 11 is set, it is described including straight pipe 411 and the arc pipeline section 412 being connected to 411 top of straight pipe
Sealing diaphragm 47 is equipped in arc pipeline section 412, the sealing diaphragm 47 is equipped with the aperture with the closure core 44 sealing cooperation.
3. being easy to fixed sterile anti-reflux remaining needle as claimed in claim 2, it is characterised in that: the straight pipe 411
The inner sidewall of lower part and main channel 11 leans, and medicine liquid channel is offered on side wall.
4. being easy to fixed sterile anti-reflux remaining needle as claimed in claim 2, it is characterised in that: the side of the main channel 11
Wall is equipped with circular hole 48, and one end of the arc pipeline section 412 is connected to circular hole 48；The elastic webbing 42 is located at the outer of main channel 11
Portion, one end are fixedly connected with the side wall of main channel 11, are had inside the elastic webbing 42 one along its axially extending hollow groove 43,
One end of the hollow groove 43 is connected to circular hole 48, is blocked core 44 and is located at hollow groove 43 across circular hole 48 and blocks core conduit 41
It is interior.
5. being easy to fixed sterile anti-reflux remaining needle as claimed in claim 3, it is characterised in that: the hollow groove 43 it is remote
End is equipped with fixed structure 46 for the fixed tail end for blocking core 44.
6. being easy to fixed sterile anti-reflux remaining needle as claimed in claim 4, it is characterised in that: the end of the elastic webbing 42
End is equipped with fixed part 50, and a side flap of fixation kit 2 is equipped with the bullet matched with the fixed part 50 with after fixed stretch
The facies posterior hepatis of property band 42.
7. being easy to fixed sterile anti-reflux remaining needle as claimed in claim 5, it is characterised in that: the closure core 44 is set
It is set to, when the elastic webbing 42 bounces back naturally, the front end for blocking core 44 moves to the opening of 13 front end of indwelling hose just；
And when the elastic webbing 42 is stretched to maximum length, the front end for blocking core 44 is retained in the arc pipeline section for blocking core conduit 41
In 412 and it is located at the downstream for sealing diaphragm 47.
8. sterile anti-reflux remaining needle as claimed in claim 6, it is characterised in that: the fin of the fixation kit 2 is flexibility
The glue applied side of material, one side gluing, two fins is covered by the same stiff sheet, borrows the elastic webbing 42 when unused
The cooperation of fixed part 50 and facies posterior hepatis is helped to keep tensional state.
9. a kind of application method such as of any of claims 1-7 for being easy to fixed sterile anti-reflux remaining needle,
It is characterized in that, includes the following steps:
Packaging is dismantled, remaining needle is taken out；
It is punctured according to the piercing step of conventional remaining needle, extracts steel needle out after the completion of puncturing；
Two side flaps of fixation kit 2 are torn up from both ends, take stiff sheet away after disengaging it from stiff sheet, by fin gluing
Side is attached at indwelling；
Sterile film is attached at the point of puncture of indwelling hose 13 and skin；
According to the mode of operation liquid medicine injection of conventional remaining needle；
When injecting liquid drug need to interrupt, fixed part 50 and facies posterior hepatis are separated, so that elastic webbing 42 is slowly bounced back, after bouncing back to nature
Fixed part 50 is fixed in conjunction with facies posterior hepatis again.
10. being easy to the application method of fixed sterile anti-reflux remaining needle as claimed in claim 9, it is characterised in that: elasticity
Tube-sealing solution is injected from infusion connector 12 after band retraction.
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| CN201810882798.5A CN108939206B (en) | 2018-08-06 | 2018-08-06 | Sterile anti-reflux indwelling needle easy to fix |
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| Publication number | Publication date |
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| CN108939206B (en) | 2023-07-14 |
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