CN104436363A - Indwelling needle controlled-release positive pressure device - Google Patents
Indwelling needle controlled-release positive pressure device Download PDFInfo
- Publication number
- CN104436363A CN104436363A CN201410747314.8A CN201410747314A CN104436363A CN 104436363 A CN104436363 A CN 104436363A CN 201410747314 A CN201410747314 A CN 201410747314A CN 104436363 A CN104436363 A CN 104436363A
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- China
- Prior art keywords
- positive pressure
- slow release
- remaining needle
- conduit
- pressure devices
- Prior art date
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- 238000013270 controlled release Methods 0.000 title abstract 7
- 239000007788 liquid Substances 0.000 claims abstract description 62
- 239000003814 drug Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 9
- 230000033558 biomineral tissue development Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000001802 infusion Methods 0.000 abstract description 9
- 210000004204 blood vessel Anatomy 0.000 abstract description 3
- 208000007536 Thrombosis Diseases 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 13
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 6
- 210000003462 vein Anatomy 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000001194 anti-hemostatic effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003146 anticoagulant agent Substances 0.000 description 2
- 229940127219 anticoagulant drug Drugs 0.000 description 2
- 230000023555 blood coagulation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 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
- 239000000203 mixture Substances 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 206010013700 Drug hypersensitivity Diseases 0.000 description 1
- 208000005189 Embolism Diseases 0.000 description 1
- 208000001435 Thromboembolism Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 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
- 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
- ZFGMDIBRIDKWMY-PASTXAENSA-N heparin Chemical compound CC(O)=N[C@@H]1[C@@H](O)[C@H](O)[C@@H](COS(O)(=O)=O)O[C@@H]1O[C@@H]1[C@@H](C(O)=O)O[C@@H](O[C@H]2[C@@H]([C@@H](OS(O)(=O)=O)[C@@H](O[C@@H]3[C@@H](OC(O)[C@H](OS(O)(=O)=O)[C@H]3O)C(O)=O)O[C@@H]2O)CS(O)(=O)=O)[C@H](O)[C@H]1O ZFGMDIBRIDKWMY-PASTXAENSA-N 0.000 description 1
- 229960001008 heparin sodium Drugs 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000243 solution Substances 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
-
- 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
- A61M2005/1581—Right-angle needle-type devices
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
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 an indwelling needle controlled-release positive pressure device which comprises a protecting cap, a spiral joint, a front guide pipe, a front tee joint, a controlled-release guide tube, a middle guide tube, a clamp, a rear tee joint, a rear guide tube, a tee joint seat, a positive pressure joint and a liquid storage device. The clamp sleeves the middle guide tube, two ends of the controlled-release guide tube and the middle guide tube are connected with two-hole ends of the front tee joint and the rear tee joint respectively, and other accessories are connected with one another. The indwelling needle controlled-release positive pressure device is characterized by being provided with the two guide tubes, and one is the controlled-release guide tube with a micro hole in the middle while another one is the middle guide tube universal in hole diameter. When the middle guide tube is clamped by the clamp, hydraulic pressure released by the positive pressure joint and the liquid storage device forms pressure, medicine liquid slowly flows out from the micro hole of the controlled-release guide tube to an indwelling needle guide tube component to seep into a blood vessel, and forming of thrombus can be effectively prevented. In addition, when infusion is needed again in the second day, normal infusion can be performed by sterilizing a connecting position, connecting and opening the clamp on the middle guide tube.
Description
Technical field
The present invention relates to single use medical apparatus and instruments, especially relate to a kind of remaining needle slow release positive pressure devices.
Background technology
The single use venous detaining needle of clinical unit of domestic each medical institutions Clinical practice, after transfusion terminates, even need carry out tube sealing operation, in order to avoid cause plugging phenomenon because managing interior formation blood coagulation, but in actual application, often because of patient moving and blood infiltration and cause blood to enter to put in pipe, as failed washing pipe before carrying out the transfusion of second day, or established sludged blood is poured Ink vessel transfusing, very easily cause the vascularization thromboembolism that blood blocks in cyclic process, bring to patient and injure even life-threatening greatly, though have to prevent blood coagulation from injecting the anticoagulant medicines such as heparin sodium to patient, can have anticoagulant drug allergy patients such as heparin sodiums, also useful normal saline carries out tube sealing, but its tube sealing limited time, repeatedly need carry out tube sealing, in addition, nurse operation is improper also very easily causes plugging phenomenon, just like positive pressure connector device on existing market, also have in pipe and place fine fibre drain etc. technology, it also can only be had malleation at that time, or obtain tension because of clip, pressure is too small, medicinal liquid release is not come, after not having a few minutes, medicinal liquid has not just flow out, still easily plugging is formed, how solving intravascular coagulation prevents clot generation from being the current difficult problem facing solution.
Summary of the invention
The object of the present invention is to provide a kind of remaining needle slow release positive pressure devices, the medicinal liquid of certain volume, lasting pressure source can be provided, slow release medicinal liquid that simultaneously also again can be stable, prevent from forming sludged blood in indwelling tube, plugging phenomenon is avoided to occur, extend service life of remaining needle, thus the clot because being formed also can be avoided to pour in the blood circulation of patient cause secondary injury.
For achieving the above object, the present invention adopts following technical scheme: the present invention includes helmet, screwed union, dummy pipe, front threeway, slow release conduit, middle conduit, clip, rear threeway, rear tube, threeway seat, positive pressure connector and liquid reservoir, clip is placed on middle conduit, slow release conduit, the two ends of middle conduit respectively with front threeway, the diplopore end of rear threeway connects, dummy pipe is connected with the single hole of front threeway and the little head end of screwed union respectively, the large end of screwed union spins helmet, rear tube is connected with the single hole end of rear threeway and the front portion of threeway seat respectively, positive pressure connector and liquid reservoir are rotatably connected in two ends at threeway seat rear portion respectively, it is characterized in that: described remaining needle slow release positive pressure devices is with DLC, one conduit is the slow release conduit that there is a micropore centre, another conduit is the middle conduit of transfusion, after central conduit is closed by clip, the hydraulic pressure mineralization pressure of its positive pressure connector and liquid reservoir release, medicinal liquid slowly flows out from the micropore of slow release conduit.
The liquid reservoir of described remaining needle slow release positive pressure devices is the syringe of its rear portion inner chamber with spring, and syringe is compressed in aspiration medicinal liquid rear spring, releasing syringe core bar, and spring and release pressure make remaining needle form positive pressure devices.
The screwed union of described remaining needle slow release positive pressure devices is anterior can spin with the catheter block of the conduit tube component of straight shape or butterfly remaining needle.
The front portion that described remaining needle slow release positive pressure devices also can be dummy pipe is connected with company's catheter end of the conduit tube component of Y type remaining needle.
The slow release conduit of described remaining needle slow release positive pressure devices, can be make centre by a kind of material to have one or more micropores as medicine liquid channel, micropore size is between 0.001mm ~ 0.1mm, also can be formed through connection segment by its different pore size aperture, it also can be the real core conduit being coextruded into parcel by bi-material, and the gap formed between its phase-contact surface by its two Material shrinkages rate difference is as medicine liquid channel.
The positive pressure connector that threeway seat rear portion two interface of described remaining needle slow release positive pressure devices spins and liquid reservoir, it can exchange location means, and positive pressure connector also can substitute with calparine cap.
Syringe jacket and the threeway seat rear interface of described remaining needle slow release positive pressure devices spin, and also can be designed to integrative-structure.
Spring in the syringe of described remaining needle slow release positive pressure devices, may also be elasticity reservoir or reservoir bag or elastomer and substitutes.
But the clip one-hand clip of described remaining needle slow release positive pressure devices also can be sheet folder.
Described remaining needle slow release positive pressure devices also can be screwed on central venous catheter adapter seat and use, and plays and is assemblied in the same slow releasing function of remaining needle.
Remaining needle slow release positive pressure devices of the present invention, when it does not join conduit tube component, transfusion device end fitting and positive pressure connector of the present invention are spun, after making transfusion device and remaining needle slow release positive pressure devices of the present invention be full of medicinal liquid, take out the helmet on screwed union, screwed union is screwed onto and has taken out on the straight shape indwelling needle catheter seat of needle assembly, when having an intravenous drip of physiological saline, pull core bar aspiration medicinal liquid is in syringe jacket, to core bar draw-in groove position, after rotation core bar one angle makes four of core bar muscle depart from the protecting cover line of rabbet joint, spring is compressed, and core bar is stuck on protecting cover, at the end of transfusion closes on, close sealing clip, transfusion device end fitting is separated with positive pressure connector, one malleation is formed in positive pressure connector, afterwards four of core bar muscle are returned in the protecting cover line of rabbet joint, namely being released of Compress Spring, medicinal liquid in syringe urceolus is extruded, form another burst of malleation, so just make the present invention have two bursts of malleations simultaneously and extrude medicinal liquid simultaneously, the medicinal liquid be extruded in pipe of the present invention flow to inlying catheter along the micropore of slow release conduit, also be formed while flowing to inlying catheter and be greater than human vein pressure and infiltrate vein, venous patient blood vessel is infiltrated because the present invention has remain medicinal liquid always, thus can condense at inlying catheter by anti-Hemostatic Oral Liquid, and then plugging can be avoided to prevent thrombosis, prevent clot intravasation from forming secondary injury, nurse can also be exempted like this every the tube sealing of 6-8 hour/time, washing pipe, alleviate its workload, in addition, when again needing to infuse when second day, connect after only connecting portion need being carried out disinfection, and supravasal clip in opening, again can normal infusion, as need again indwelling time, then be pumped in liquid reservoir when infusion normal saline, use in order to tube sealing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 and Fig. 3 is respectively the structure intention of liquid reservoir of the present invention and the schematic diagram of protecting cover;
Fig. 4 is the embodiment of the present invention 1 and the matching used structural representation of straight type remaining needle catheter component;
Fig. 5 is the structural representation of the embodiment of the present invention 2.
Reference numeral:
1-screwed union, 2-dummy pipe, threeway before 3-, conduit in 4-, 5-slow release conduit, 6-clip, threeway after 7-, 8-rear tube, 9-threeway seat, 10-liquid reservoir, 11-positive pressure connector, 12-helmet, the straight shape remaining needle catheter component of 13-, 14-calparine cap, the conduit tube component of 15-Y type remaining needle, the needle assembly of 16-Y type remaining needle, 101-syringe jacket, 102-piston, 103-core bar, 104-spring, 105-protecting cover.
Detailed description of the invention
Contrast accompanying drawing below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1
As Fig. 1, Fig. 2, shown in Fig. 3 Fig. 4 and Fig. 5, the present invention is by helmet (12), screwed union (1), dummy pipe (2), front threeway (3), slow release conduit (5), middle conduit (4), clip (6), rear threeway (7), rear tube (8), threeway seat (9), positive pressure connector (11) and liquid reservoir (10) composition, clip (6) is placed on middle conduit (4), slow release conduit (5), the two ends of middle conduit (4) respectively with front threeway (3), the diplopore end of rear threeway (7) connects, dummy pipe (2) is connected with the single hole of front threeway (3) and screwed union (1) little head end respectively, screwed union (1) holds the helmet (12) that spins greatly, rear tube (8) is connected with the single hole end of rear threeway (7) and the front portion of threeway seat (9) respectively, positive pressure connector (11) and liquid reservoir (10) are rotatably connected in two ends at threeway seat (9) rear portion respectively, it is characterized in that: described remaining needle slow release positive pressure devices is with DLC, one conduit is the middle slow release conduit (5) with a micropore, another conduit is the middle conduit (4) of transfusion, after central conduit (4) is closed by clip (6) folder, the hydraulic pressure mineralization pressure that its positive pressure connector (11) and liquid reservoir (10) discharge, medicinal liquid slowly flows out from the micropore of slow release conduit (5).
The liquid reservoir (10) of described remaining needle slow release positive pressure devices is for its rear portion inner chamber is with the syringe of spring (104), syringe is compressed in aspiration medicinal liquid rear spring (104), releasing syringe core bar (103), spring (104) i.e. release pressure makes remaining needle form positive pressure devices.
Screwed union (1) front portion of described remaining needle slow release positive pressure devices can spin with the catheter block of the conduit tube component (13) of straight shape or butterfly remaining needle.
Described remaining needle slow release positive pressure devices also can be the front portion of dummy pipe (2) and is connected with company's catheter end of the conduit tube component (15) of Y type remaining needle.
The slow release conduit (5) of described remaining needle slow release positive pressure devices, can be make centre by a kind of material to have one or more micropores as medicine liquid channel, micropore size is between 0.001mm ~ 0.1mm, also can be formed through connection segment by its different pore size aperture, it also can be the real core conduit being coextruded into parcel by bi-material, and the gap formed between its phase-contact surface by its two Material shrinkages rate difference is as medicine liquid channel.
The positive pressure connector (11) that threeway seat (9) rear portion two interface of described remaining needle slow release positive pressure devices spins and liquid reservoir (10), it can exchange location means, and positive pressure connector (11) also can use calparine cap (14) to substitute.
Syringe jacket (101) and threeway seat (9) rear interface of described remaining needle slow release positive pressure devices spin, and also can be designed to integrative-structure.
Spring (104) in the syringe of described remaining needle slow release positive pressure devices, may also be elasticity reservoir or reservoir bag or elastomer and substitutes.
The clip (6) of described remaining needle slow release positive pressure devices but one-hand clip, also can be sheet folder.
Described remaining needle slow release positive pressure devices also can be screwed on central venous catheter adapter seat and use, and plays and is assemblied in the same slow releasing function of remaining needle.
The remaining needle slow release positive pressure devices of the embodiment of the present invention 1, during use, transfusion device end fitting and positive pressure connector of the present invention (11) are spun, after making transfusion device and remaining needle slow release positive pressure devices of the present invention be full of medicinal liquid, take out the helmet (12) on screwed union (1), screwed union (1) is screwed onto on the catheter block of the straight shape remaining needle catheter component (13) taking out needle assembly, when having an intravenous drip of physiological saline, pull core bar (103) aspiration medicinal liquid is in syringe jacket (101), to core bar (103) draw-in groove position, after rotation core bar (103) angle makes four muscle of core bar (103) depart from protecting cover (105) line of rabbet joint, spring (104) is compressed, core bar (103) is stuck on protecting cover (105), at the end of transfusion closes on, close sealing clip (6), transfusion device end fitting is separated with positive pressure connector (11), one malleation is formed in positive pressure connector (11), afterwards four muscle of core bar (103) are returned in protecting cover (105) line of rabbet joint, namely the spring (104) of compression is released, medicinal liquid in syringe urceolus (101) is extruded by plug (102), form another burst of malleation, so just make the present invention have two bursts of malleations simultaneously and extrude medicinal liquid simultaneously, the medicinal liquid be extruded in pipe of the present invention flow to inlying catheter along the micropore of slow release conduit (5), also be formed while flowing to inlying catheter and be greater than human vein pressure and infiltrate vein, venous patient Ink vessel transfusing is infiltrated because the present invention has remain medicinal liquid always, thus can solidify at inlying catheter by anti-Hemostatic Oral Liquid, and then the generation of the anti-tampon of plugging can be avoided, prevent clot intravasation from forming secondary injury, nurse can also be exempted like this every the tube sealing of 6-8 hour/time, washing pipe, alleviate its workload, in addition, when again needing to infuse when second day, connect after only connecting portion need being carried out disinfection, and the clip (6) opened on middle conduit (4), again can normal infusion, as need again indwelling time, then be pumped to when infusion normal saline in liquid reservoir (10), use in order to tube sealing.
Embodiment 2
As shown in Figure 5, the embodiment of the present invention 2 is different from embodiment 1 is its needle assembly (16) by Y type remaining needle, the conduit tube component (15) of Y type remaining needle, dummy pipe (2), front threeway (3), slow 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) is placed on middle conduit (4), slow release conduit (5), the two ends of middle conduit (4) are respectively with front, the diplopore end of rear threeway connects, dummy pipe (2) is connected with the single hole of front threeway (3) and conduit tube component (15) Zhi Guanduan of Y type remaining needle respectively, rear tube (8) is connected with the single hole end of rear threeway (7) and the front portion of threeway seat (9) respectively, calparine cap (14) and liquid reservoir (10) are rotatably connected in two ends at threeway seat (9) rear portion respectively, further feature is all identical, just in use operation, also has difference.
The present embodiment 2 in use, the Transfusion needle pipe of transfusion device is inserted with on the latex cap of the calparine cap (14) of the present embodiment 2, make transfusion device, after the remaining needle slow release positive pressure devices with Y type remaining needle of the present embodiment 2 is full of medicinal liquid, take out remaining needle sheath, close transfusion device actuator, wound surface sterilization is carried out by retained needle puncture art operating process, pumpback needle assembly (16) after blood back is shown in venipuncture, inserting needle, extract needle assembly (16), fixing wait operate after infuse, on arbitrary time point in infusion process, slowly pull core bar (103) aspiration medicinal liquid is in syringe jacket (101), to core bar (103) draw-in groove position, after rotation core bar (103) angle makes four muscle of core bar (103) depart from protecting cover (105) line of rabbet joint, spring (104) is compressed, core bar (103) is stuck on protecting cover (105), at the end of transfusion closes on, close sealing clip (6), Transfusion needle pipe is extracted, afterwards four muscle of core bar (103) are returned in protecting cover (105) line of rabbet joint, namely the spring (104) of compression is released, medicinal liquid in syringe urceolus (101) is extruded by plug (102), form one malleation extruding medicinal liquid, the medicinal liquid be extruded in pipe is made to flow to inlying catheter along the micropore of slow release conduit (5), also be formed while flowing to inlying catheter and be greater than human vein pressure and infiltrate vein, venous patient blood vessel is infiltrated because the present invention has remain medicinal liquid always, thus can be condensed in inlying catheter and solidify by anti-Hemostatic Oral Liquid, and then the generation of the anti-tampon of plugging can be avoided, prevent clot intravasation from forming secondary injury, nurse can also be exempted like this every the tube sealing of 6-8 hour/time, washing pipe, alleviate its workload, in addition, when again needing to infuse when second day, connect after only connecting portion need being carried out disinfection, and the clip (6) opened on middle conduit (4), but also can normal infusion not only, as need again indwelling time, then be pumped to when infusion normal saline in liquid reservoir (10), use in order to tube sealing.
The above embodiment 1 and enforcement 2 are only preferred embodiments of the present invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, its each accessory also can make the increase and decrease of some modification, improvement and accessory, and this also should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a remaining needle slow release positive pressure devices, it comprises helmet, screwed union, dummy pipe, front threeway, slow release conduit, middle conduit, clip, rear threeway, rear tube, threeway seat, positive pressure connector and liquid reservoir, clip is placed on middle conduit, slow release conduit, the two ends of middle conduit respectively with front threeway, the diplopore end of rear threeway connects, dummy pipe is connected with the single hole of front threeway and the little head end of screwed union respectively, the large end of screwed union spins helmet, rear tube is connected with the single hole end of rear threeway and the front portion of threeway seat respectively, positive pressure connector and liquid reservoir are rotatably connected in two ends at threeway seat rear portion respectively, it is characterized in that: remaining needle slow release positive pressure devices is with DLC, one conduit is the middle slow release conduit with a micropore, another conduit is the middle conduit of transfusion, after central conduit is closed by clip, the hydraulic pressure mineralization pressure of its positive pressure connector and liquid reservoir release, medicinal liquid slowly flows out from the micropore of slow release conduit.
2. remaining needle slow release positive pressure devices as claimed in claim 1, it is characterized in that: the liquid reservoir of described remaining needle slow release positive pressure devices is the syringe of its rear portion inner chamber with spring, syringe is compressed in aspiration medicinal liquid rear spring, releasing syringe core bar, spring and release pressure make remaining needle form positive pressure devices.
3. remaining needle slow release positive pressure devices as claimed in claim 1, is characterized in that: the screwed union of described remaining needle slow release positive pressure devices is anterior can spin with the catheter block of the conduit tube component of straight shape or butterfly remaining needle.
4. remaining needle slow release positive pressure devices as claimed in claim 1, is characterized in that: the front portion that described remaining needle slow release positive pressure devices also can be dummy pipe is connected with company's catheter end of the conduit tube component of Y type remaining needle.
5. remaining needle slow release positive pressure devices as claimed in claim 1, it is characterized in that: the slow release conduit of described remaining needle slow release positive pressure devices, can be make centre by a kind of material to have one or more micropores as medicine liquid channel, micropore size is between 0.001mm ~ 0.1mm, also can be formed through connection segment by its different pore size aperture, it also can be the real core conduit being coextruded into parcel by bi-material, and the gap formed between its phase-contact surface by its two Material shrinkages rate difference is as medicine liquid channel.
6. remaining needle slow release positive pressure devices as claimed in claim 1, is characterized in that: the positive pressure connector that threeway seat rear portion two interface of described remaining needle slow release positive pressure devices spins and liquid reservoir, it can exchange location means, and positive pressure connector also can substitute with calparine cap.
7. remaining needle slow release positive pressure devices as claimed in claim 1, is characterized in that: syringe jacket and the threeway seat rear interface of described remaining needle slow release positive pressure devices spin, and also can be designed to integrative-structure.
8. remaining needle slow release positive pressure devices as claimed in claim 2, is characterized in that: the spring in the syringe of described remaining needle slow release positive pressure devices, may also be elasticity reservoir or reservoir bag or elastomer and substitutes.
9. the remaining needle slow release positive pressure devices as described in any one of claim 1-8, is characterized in that: but the clip one-hand clip of described remaining needle slow release positive pressure devices, also can be sheet folder.
10. the remaining needle slow release positive pressure devices as described in any one of claim 1,2,5,6,7,8,9, it is characterized in that: described remaining needle slow release positive pressure devices also can be screwed on central venous catheter adapter seat and use, and plays and is 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 true CN104436363A (en) | 2015-03-25 |
| CN104436363B CN104436363B (en) | 2017-12-22 |
Family
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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) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922760A (en) * | 2015-06-24 | 2015-09-23 | 湛江健力源医疗用品有限公司 | Remaining needle with flow adjuster |
| CN105107055A (en) * | 2015-08-14 | 2015-12-02 | 汪贤宗 | Sustainable positive-pressure anticoagulation device of indwelling needle |
| CN105251079A (en) * | 2015-07-31 | 2016-01-20 | 河南曙光健士医疗器械集团股份有限公司 | Anti-thrombosis remaining needle device |
| WO2016086833A1 (en) * | 2014-12-01 | 2016-06-09 | 邹卫平 | Indwelling needle sustained release positive pressure apparatus |
| CN106552301A (en) * | 2015-09-24 | 2017-04-05 | 邹卫平 | A kind of slow release positive pressure devices and its remaining needle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104436363B (en) | 2017-12-22 |
| WO2016086833A1 (en) | 2016-06-09 |
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