CN104436363B - A kind of remaining needle is sustained positive pressure devices - Google Patents
A kind of remaining needle is sustained positive pressure devices Download PDFInfo
- Publication number
- CN104436363B CN104436363B CN201410747314.8A CN201410747314A CN104436363B CN 104436363 B CN104436363 B CN 104436363B CN 201410747314 A CN201410747314 A CN 201410747314A CN 104436363 B CN104436363 B CN 104436363B
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- China
- Prior art keywords
- positive pressure
- conduit
- remaining needle
- sustained release
- pressure devices
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- 230000002459 sustained effect Effects 0.000 title claims abstract description 15
- 238000013268 sustained release Methods 0.000 claims abstract description 61
- 239000012730 sustained-release form Substances 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 5
- 238000001802 infusion Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 3
- 208000007536 Thrombosis Diseases 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 12
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 6
- 239000002504 physiological saline solution Substances 0.000 description 6
- 210000003462 vein Anatomy 0.000 description 6
- 238000000429 assembly Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 230000001194 anti-hemostatic effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 2
- 239000003146 anticoagulant agent Substances 0.000 description 2
- 229940127219 anticoagulant drug Drugs 0.000 description 2
- 230000023555 blood coagulation Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000669 heparin Polymers 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 206010013700 Drug hypersensitivity Diseases 0.000 description 1
- 208000005189 Embolism Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 201000005311 drug allergy Diseases 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001954 sterilising effect Effects 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
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 discloses a kind of remaining needle to be sustained positive pressure devices, including helmet, screwed union, dummy pipe, preceding threeway, sustained release conduit, middle conduit, clip, rear threeway, rear tube, threeway seat, positive pressure connector and liquid reservoir, clip is placed on middle conduit, sustained release conduit, the both ends of middle conduit are connected with the diplopore end of forward and backward threeway respectively, other accessories are connected with each other, it is characterised in that：The remaining needle sustained release positive pressure devices are with double duct, one conduit has the sustained release conduit of a micropore for centre, another conduit is the middle conduit in general aperture, after central conduit is closed by clip folder, its positive pressure connector and the hydraulic pressure of liquid reservoir release form pressure, the micropore of decoction from sustained release conduit penetrates into blood vessel after slowly flowing out to remaining needle catheter component, the formation of thrombus can effectively be prevented, in addition, when needing to be infused again within second day, connected after only connecting portion need to be carried out disinfection, and supravasal clip in opening, again can normal infusion.
Description
Technical field
The present invention relates to disposable medicine equipment, and positive pressure devices are sustained more particularly, to a kind of remaining needle.
Background technology
The disposable venous detaining needle of domestic each clinical unit of medical institutions Clinical practice, the even need after transfusion terminates
Tube sealing operation is carried out, in order to avoid the plugging phenomenon caused by blood coagulation is formed in pipe, but in actual application, often because of patient motion
Infiltration with blood and cause blood to enter and put in pipe, such as fail washing pipe before the transfusion of second day is carried out, or will be established
Sludged blood pours intravascular, easily to cause blood to be blocked in cyclic process vascularization embolism, is brought greatly to patient
Injury even life-threatening, though have to prevent blood clotting from injecting the anticoagulant medicines such as liquaemin to patient, have to heparin
The anticoagulant drug allergy patient such as sodium, also useful physiological saline progress tube sealing, but its tube sealing limited time, need to repeatedly be sealed
Pipe, in addition, nurse operation is improper also easily to cause plugging phenomenon, existing in the market is also placed just like positive pressure connector device in pipe
Fine fibre drainage etc. technology, it also can only be to have malleation at that time, or because clip holds tension, pressure is too small, and decoction is released
Put to come over, decoction is not just flow out after not having a few minutes, or easily forms plugging, and how to solve intravascular coagulation prevents clot
Generation is currently to face the problem of solution.
The content of the invention
It is an object of the invention to provide a kind of remaining needle to be sustained positive pressure devices, can provide the decoction of certain volume, hold
Continuous pressure source, while the also stable sustained release decoction of and can, prevent from forming sludged blood in indwelling tube, avoid plugging phenomenon from occurring,
Extend the service life of remaining needle, it is secondary caused by the blood circulation system that the clot of formation pours patient so as to also be avoided that
Injury.
To achieve the above object, the present invention adopts the following technical scheme that：The present invention include helmet, screwed union, dummy pipe,
Preceding threeway, sustained release conduit, middle conduit, clip, rear threeway, rear tube, threeway seat, positive pressure connector and liquid reservoir, during clip is placed on
On conduit, diplopore end of the sustained release conduit, the both ends of middle conduit respectively with preceding threeway, rear threeway is connected, dummy pipe respectively with first three
Logical single hole connects with the small head end of screwed union, and the big end of screwed union spins helmet, the rear tube single hole end with rear threeway respectively
With the front portion connection of threeway seat, positive pressure connector and liquid reservoir are rotatably connected in two ends at threeway seat rear portion respectively, it is characterised in that：Institute
It is to have the sustained release conduit of a micropore with double duct, one conduit for centre to state remaining needle sustained release positive pressure devices, and another conduit is
Transfusion middle conduit, central conduit by clip folder close after, its positive pressure connector and liquid reservoir release hydraulic pressure formed pressure, decoction from
The micropore of sustained release conduit slowly flows out.
The liquid reservoir of the remaining needle sustained release positive pressure devices carries the syringe of spring for its rear portion inner chamber, and syringe is being taken out
Spring is compressed after inhaling decoction, discharges syringe core rod, spring, which discharges pressure, makes remaining needle form positive pressure devices.
The screwed union front portion of the remaining needle sustained release positive pressure devices can be with the conduit tube component of straight or butterfly remaining needle
Catheter block spins.
The remaining needle sustained release positive pressure devices are alternatively front portion and the company's conduit of the conduit tube component of Y type remaining needles of dummy pipe
End connection.
The sustained release conduit of the remaining needle sustained release positive pressure devices, can be that centre is made by a kind of material one or one
For above micropore as medicine liquid channel, micropore size, also can be by its segmented company in different pore size aperture between 0.001mm~0.1mm
Connect and form, it can also be the real core conduit that parcel is coextruded into by two kinds of materials, by its two Material shrinkages rate difference at it
The gap formed between phase-contact surface is as medicine liquid channel.
The positive pressure connector and liquid reservoir that the interface of threeway seat rear portion two of the remaining needle sustained release positive pressure devices spins, it can be right
Change place device, positive pressure connector can also be substituted with calparine cap.
The syringe jacket of the remaining needle sustained release positive pressure devices spins with threeway seat rear interface, is also designed to one
Structure.
Spring or elastic reservoir reservoir hag in the syringe of remaining needle sustained release positive pressure devices or
Elastomer substitutes.
The clip of the remaining needle sustained release positive pressure devices can be one-hand clip or piece folder.
The remaining needle sustained release positive pressure devices, which can be also screwed on central venous catheter adapter seat, to be used, and is played to be assemblied in and is stayed
Put the same slow releasing function of pin.
The remaining needle sustained release positive pressure devices of the present invention, when it does not match somebody with somebody conduit tube component, by transfusion device end fitting and the present invention
Positive pressure connector spin, make transfusion device and the present invention remaining needle sustained release positive pressure devices be full of decoction after, take out on screwed union
Helmet, screwed union is screwed onto on the straight indwelling needle catheter seat for having taken out needle assemblies, when having an intravenous drip of physiological saline, pull core
In bar aspiration medicinal liquid to syringe jacket, to core bar groove position, the rotation angle of core bar one makes four muscle of core bar deviate protecting cover
After the line of rabbet joint, spring is compressed, and core bar is stuck on protecting cover；At the end of transfusion closes on, sealing clip is closed, by transfusion device end
Joint is separated with positive pressure connector, and one malleation is formed in positive pressure connector, afterwards recovers four muscle of core bar into the protecting cover line of rabbet joint,
Compression spring is released, and the decoction in syringe outer barrel is extruded, and forms another burst of malleation, thus makes the present invention simultaneously
Possess two bursts of malleations while extrude decoction, micropore of the decoction being extruded in pipe of the present invention along sustained release conduit flow to indwelling and led
Pipe, it is also formed with being more than human vein pressure and penetrating into vein while flowing to inlying catheter, because the present invention is always maintained at
Decoction penetrates into venous patient blood vessel, is condensed so as to anti-Hemostatic Oral Liquid in inlying catheter, and then is avoided that plugging prevents thrombosis,
Prevent clot intravasation formed secondary injury, can also so exempt nurse every 6-8 hours/time tube sealing, washing pipe, mitigate it
Workload, in addition, when needing to be infused again within second day, connected after only connecting portion need to be carried out disinfection, and in opening
Supravasal clip, again can normal infusion, such as need again indwelling when, then be pumped to when being transfused physiological saline in liquid reservoir,
In case tube sealing is used.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 and Fig. 3 is respectively that the structure of the liquid reservoir of the present invention is intended to the schematic diagram with protecting cover；
Fig. 4 is the embodiment of the present invention 1 and the straight matching used structural representation of type remaining needle catheter component；
Fig. 5 is the structural representation of the embodiment of the present invention 2.
Reference：
1- screwed unions, 2- dummy pipes, threeway before 3-, conduit in 4-, 5- sustained release conduits, 6- clips, threeway after 7-, after 8-
Conduit, 9- threeway seats, 10- liquid reservoirs, 11- positive pressure connectors, 12- helmets, 13- straight remaining needle catheter components, 14- calparine caps,
The conduit tube component of 15-Y type remaining needles, the needle assemblies of 16-Y type remaining needles, 101- syringe jackets, 102- pistons, 103- core bars,
104- springs, 105- protecting covers.
Embodiment
With reference to embodiment and compare accompanying drawing the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, Figure 2, shown in Fig. 3 Fig. 4 and Fig. 5, the present invention by helmet (12), screwed union (1), dummy pipe (2), first three
Logical (3), sustained release conduit (5), middle conduit (4), clip (6), rear threeway (7), rear tube (8), threeway seat (9), positive pressure connector
(11) formed with liquid reservoir (10), clip (6) is placed on middle conduit (4), sustained release conduit (5), middle conduit (4) both ends respectively with
Preceding threeway (3), the diplopore end connection of rear threeway (7), dummy pipe (2) are small with the single hole and screwed union (1) of preceding threeway (3) respectively
Head end connects, and screwed union (1) end greatly spins helmet (12), rear tube (8) the single hole end with rear threeway (7) and threeway seat respectively
(9) anterior connection, positive pressure connector (11) and liquid reservoir (10) are rotatably connected in two ends at threeway seat (9) rear portion, its feature respectively
It is：The remaining needle sustained release positive pressure devices are with double duct, and one conduit is the middle sustained release conduit for carrying a micropore
(5), another conduit is the middle conduit (4) of transfusion, after central conduit (4) is closed by clip (6) folder, its positive pressure connector (11) and reservoir
The hydraulic pressure of device (10) release forms pressure, and the micropore of decoction from sustained release conduit (5) slowly flows out.
The liquid reservoir (10) of the remaining needle sustained release positive pressure devices carries the syringe of spring (104) for its rear portion inner chamber,
Syringe spring (104) after aspiration medicinal liquid is compressed, and release syringe core rod (103), spring (104), which discharges pressure, to be made to stay
Put pin and form positive pressure devices.
The screwed union (1) of the remaining needle sustained release positive pressure devices is anterior can be with straight or the conduit tube component of butterfly remaining needle
(13) catheter block spins.
The remaining needle sustained release positive pressure devices are alternatively front portion and the conduit tube component (15) of Y type remaining needles of dummy pipe (2)
The connection of company catheter end.
The sustained release conduit (5) of remaining needle sustained release positive pressure devices, can be by a kind of material be made centre have one or
For more than one micropore as medicine liquid channel, micropore size, also can be by its different pore size aperture through dividing between 0.001mm~0.1mm
Section is formed by connecting, and it can also be the real core conduit that parcel is coextruded into by two kinds of materials, by its two Material shrinkages rate difference
The gap formed between its phase-contact surface is as medicine liquid channel.
The positive pressure connector (11) and liquid reservoir that the interface of threeway seat (9) rear portion two of the remaining needle sustained release positive pressure devices spins
(10), it can exchange location means, and positive pressure connector (11) can also use calparine cap (14) to substitute.
The syringe jacket (101) of the remaining needle sustained release positive pressure devices spins with threeway seat (9) rear interface, can also set
It is calculated as integrative-structure.
Spring (104) or elastic reservoir or air storage in the syringe of the remaining needle sustained release positive pressure devices
Capsule or elastomer substitute.
The clip (6) of the remaining needle sustained release positive pressure devices can be one-hand clip or piece folder.
The remaining needle sustained release positive pressure devices, which can be also screwed on central venous catheter adapter seat, to be used, and is played to be assemblied in and is stayed
Put the same slow releasing function of pin.
The remaining needle sustained release positive pressure devices of the embodiment of the present invention 1, in use, by transfusion device end fitting and the present invention just
Crimp head (11) spins, and after transfusion device and the remaining needle of present invention sustained release positive pressure devices are made full of decoction, takes out screwed union
(1) helmet (12) on, screwed union (1) is screwed onto to the conduit for the straight remaining needle catheter component (13) for having taken out needle assemblies
On seat, when having an intravenous drip of physiological saline, in pull core bar (103) aspiration medicinal liquid to syringe jacket (101), to core bar (103) neck
Position, after the rotation angle of core bar (103) one makes four muscle of core bar (103) deviate protecting cover (105) line of rabbet joint, spring (104) is pressed
Contracting, core bar (103) are stuck on protecting cover (105)；At the end of transfusion closes on, sealing clip (6) is closed, transfusion device end is connect
Head separate with positive pressure connector (11), interior one malleation of formation of positive pressure connector (11), afterwards by four muscle of core bar (103) recover to
In protecting cover (105) line of rabbet joint, the spring (104) of compression is released, and the decoction in syringe outer barrel (101) is squeezed by plug (102)
Pressure, another burst of malleation is formed, thus make the present invention while possess two bursts of malleations while extrude decoction, being squeezed in pipe of the present invention
Micropore of the decoction of pressure along sustained release conduit (5) flow to inlying catheter, is also formed with being more than human body while flowing to inlying catheter
Vein pressure and penetrate into vein, due to the present invention be always maintained at decoction penetrate into venous patient it is intravascular, so as to anti-Hemostatic Oral Liquid
Condense and solidify in inlying catheter, and then be avoided that the generation of the anti-tampon of plugging, prevent clot intravasation from forming secondary injury,
Can also so exempt nurse every 6-8 hours/time tube sealing, washing pipe, mitigate its workload, in addition, need again when second day
When being infused, connected after only connecting portion need to be carried out disinfection, and the clip (6) in opening on conduit (4), again can be normally defeated
Liquid, when such as needing indwelling again, then it is pumped to when being transfused physiological saline in liquid reservoir (10), in case tube sealing is used.
Embodiment 2
As shown in figure 5, the embodiment of the present invention 2 is its needle assemblies (16), Y type by Y type remaining needles with the difference of embodiment 1
The conduit tube component (15) of remaining needle, dummy pipe (2), preceding threeway (3), sustained release conduit (5), middle conduit (4), clip (6), rear threeway
(7), rear tube (8), threeway seat (9), calparine cap (14) and liquid reservoir (10) composition, clip (6) are placed on middle conduit (4), are delayed
Release conduit (5), the both ends of middle conduit (4) are connected with the diplopore end of forward and backward threeway respectively, dummy pipe (2) respectively with preceding threeway (3)
Single hole connected with conduit tube component (15) Zhi Guanduan of Y type remaining needles, rear tube (8) respectively with the single hole end of rear threeway (7) and
The anterior connection of threeway seat (9), calparine cap (14) and liquid reservoir (10) are rotatably connected in two ends at threeway seat (9) rear portion respectively, its
Its feature all same, simply also there is difference on using operation.
The present embodiment 2 inserts the latex with the calparine cap (14) of the present embodiment 2 when in use, by the Transfusion needle pipe of transfusion device
On cap, after the sustained release positive pressure devices of the remaining needle with Y type remaining needles of transfusion device, the present embodiment 2 is full of decoction, indwelling is taken out
Needle shield, close transfusion device adjuster, carry out surface of a wound sterilization by retained needle puncture art operating process, venipuncture is returned after seeing blood back
Drawn needle component (16), inserting needle, infused after extracting the operation such as needle assemblies (16), fixed, any time in infusion process
On point, slowly in pull core bar (103) aspiration medicinal liquid to syringe jacket (101), to core bar (103) groove position, rotary core
After the angle of bar (103) one makes four muscle of core bar (103) deviate protecting cover (105) line of rabbet joint, spring (104) is compressed, core bar (103)
It is stuck on protecting cover (105)；At the end of transfusion closes on, sealing clip (6) is closed, Transfusion needle pipe is extracted, afterwards by core bar
(103) four muscle recover into protecting cover (105) line of rabbet joint, and the spring (104) of compression is released, in syringe outer barrel (101)
Decoction extruded by plug (102), form one malleation extruding decoction, make the decoction being extruded in pipe along sustained release conduit
(5) micropore flow to inlying catheter, is also formed with being more than human vein pressure and penetrating into vein while flowing to inlying catheter, due to
The present invention is always maintained at decoction and penetrates into venous patient blood vessel, and solidification is condensed into inlying catheter so as to anti-Hemostatic Oral Liquid,
And then the generation of the anti-tampon of plugging is avoided that, prevent clot intravasation from forming secondary injury, it is every can also so to exempt nurse
Every 6-8 hours/time tube sealing, washing pipe, mitigate its workload, only need to will be even in addition, when needing to be infused again within second day
Socket part position connects after carrying out disinfection, and the clip (6) in opening on conduit (4), i.e., again can normal infusion, such as need indwelling again
When, then it is pumped to when being transfused physiological saline in liquid reservoir (10), in case tube sealing is used.
Embodiment described above 1 and implementation 2 are only the preferred embodiments of the present invention.It should be pointed out that for this area skill
Art personnel, under the premise without departing from the principles of the invention, its each accessory can also make the increase and decrease of some modifications, improvement and accessory,
This also should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. a kind of remaining needle is sustained positive pressure devices, it include helmet, screwed union, dummy pipe, preceding threeway, be sustained conduit, in lead
Pipe, clip, rear threeway, rear tube, threeway seat, positive pressure connector and liquid reservoir, clip are placed on middle conduit, sustained release conduit, in lead
Diplopore end of the both ends of pipe respectively with preceding threeway, rear threeway is connected, and dummy pipe is small with the single hole and screwed union of preceding threeway respectively
Head end is connected, and the big end of screwed union spins helmet, and rear tube is connected with the single hole end of rear threeway and the front portion of threeway seat respectively, just
Crimp head and liquid reservoir are rotatably connected in two ends at threeway seat rear portion respectively, it is characterised in that：Remaining needle sustained release positive pressure devices carry
Double duct, one conduit are the middle sustained release conduit for carrying a micropore, and another conduit is the middle conduit of transfusion, and central conduit is pressed from both sides
After sub-folder closes, the hydraulic pressure of its positive pressure connector and liquid reservoir release forms pressure, and the micropore of decoction from sustained release conduit slowly flows out.
2. remaining needle as claimed in claim 1 is sustained positive pressure devices, it is characterised in that：Described remaining needle sustained release positive pressure devices
Liquid reservoir the syringe of spring is carried for its rear portion inner chamber, syringe spring after aspiration medicinal liquid compressed, and discharges syringe
Core bar, spring, which discharges pressure, makes remaining needle form positive pressure devices.
3. remaining needle as claimed in claim 1 is sustained positive pressure devices, it is characterised in that：Described remaining needle sustained release positive pressure devices
Screwed union front portion can be spun with the catheter block of straight or the conduit tube component of butterfly remaining needle.
4. remaining needle as claimed in claim 1 is sustained positive pressure devices, it is characterised in that：Described remaining needle sustained release positive pressure devices
Or the front portion of dummy pipe is connected with company's catheter end of the conduit tube component of Y type remaining needles.
5. remaining needle as claimed in claim 1 is sustained positive pressure devices, it is characterised in that：Described remaining needle sustained release positive pressure devices
Sustained release conduit, can be that centre is made by a kind of material to have one or more micropores as medicine liquid channel, micropore size
Between 0.001mm~0.1mm, it can be also formed by connecting by its different pore size is segmented, it can also be coextruded by two kinds of materials
Into the real core conduit of parcel, the gap formed by its two Material shrinkages rate difference between its phase-contact surface is as medicine liquid channel.
6. remaining needle as claimed in claim 1 is sustained positive pressure devices, it is characterised in that：Described remaining needle sustained release positive pressure devices
The interface of threeway seat rear portion two positive pressure connector and liquid reservoir that spin, it can also be replaced to change place, positive pressure connector with calparine cap
Generation.
7. remaining needle as claimed in claim 1 is sustained positive pressure devices, it is characterised in that：Described remaining needle sustained release positive pressure devices
Syringe jacket spun with threeway seat rear interface, be also designed to integrative-structure.
8. remaining needle as claimed in claim 2 is sustained positive pressure devices, it is characterised in that：Described remaining needle sustained release positive pressure devices
Syringe in spring or elastic reservoir or elastic reservoir hag replace.
9. the remaining needle sustained release positive pressure devices as described in claim any one of 1-8, it is characterised in that：The remaining needle sustained release is just
The clip of pressure device can be one-hand clip or piece folder.
10. remaining needle as claimed in claim 9 is sustained positive pressure devices, it is characterised in that：The described positive press fitting of remaining needle sustained release
Put also be screwed on central venous catheter adapter seat and use, play and be assemblied in the same slow releasing function of remaining needle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410747314.8A CN104436363B (en) | 2014-12-01 | 2014-12-01 | A kind of remaining needle is sustained positive pressure devices |
| PCT/CN2015/096111 WO2016086833A1 (en) | 2014-12-01 | 2015-12-01 | Indwelling needle sustained release positive pressure apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410747314.8A CN104436363B (en) | 2014-12-01 | 2014-12-01 | A kind of remaining needle is sustained positive pressure devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104436363A CN104436363A (en) | 2015-03-25 |
| CN104436363B true CN104436363B (en) | 2017-12-22 |
Family
ID=52883612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410747314.8A Active CN104436363B (en) | 2014-12-01 | 2014-12-01 | A kind of remaining needle is sustained positive pressure devices |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104436363B (en) |
| WO (1) | WO2016086833A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436363B (en) * | 2014-12-01 | 2017-12-22 | 河南曙光健士医疗器械集团股份有限公司 | A kind of remaining needle is sustained positive pressure devices |
| CN104922760B (en) * | 2015-06-24 | 2018-03-20 | 湛江健力源医疗用品有限公司 | A kind of remaining needle with flow regulator |
| CN105251079B (en) * | 2015-07-31 | 2019-06-04 | 河南曙光健士医疗器械集团股份有限公司 | A kind of preventing thrombosis indwelling needle device |
| CN105107055A (en) * | 2015-08-14 | 2015-12-02 | 汪贤宗 | Sustainable positive-pressure anticoagulation device of indwelling needle |
| CN106552301A (en) * | 2015-09-24 | 2017-04-05 | 邹卫平 | A kind of slow release positive pressure devices and its remaining needle |
| CN107569737A (en) * | 2017-09-01 | 2018-01-12 | 李卫林 | A kind of plug-type preventing thrombosis remaining needle |
| CN107569738A (en) * | 2017-09-26 | 2018-01-12 | 湖北楚天药业有限责任公司 | A kind of positive pressure vein remaining needle |
| CN109985294B (en) * | 2017-12-30 | 2023-12-26 | 杨恚 | Self-recovery device for checking pipeline passage by diaphragm type blood drawing method |
| CN109125852B (en) * | 2018-07-11 | 2020-12-01 | 中国人民解放军陆军军医大学第一附属医院 | Remaining needle fixing device for children |
| CN110917441A (en) * | 2019-11-07 | 2020-03-27 | 北京伏尔特技术有限公司 | Needleless connector with puncture outfit and positive pressure connector |
| CN113085204B (en) * | 2021-04-27 | 2022-04-29 | 中电鹏程智能装备有限公司 | Heparin cap automation line |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104436363A (en) | 2015-03-25 |
| WO2016086833A1 (en) | 2016-06-09 |
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