CN205084112U - A keep somewhere needle of continuous positive airway pressure is provided - Google Patents

A keep somewhere needle of continuous positive airway pressure is provided Download PDF

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Publication number
CN205084112U
CN205084112U CN201520638475.3U CN201520638475U CN205084112U CN 205084112 U CN205084112 U CN 205084112U CN 201520638475 U CN201520638475 U CN 201520638475U CN 205084112 U CN205084112 U CN 205084112U
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CN
China
Prior art keywords
base
roller
flexible pipe
malleation
gyro wheel
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Withdrawn - After Issue
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CN201520638475.3U
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Chinese (zh)
Inventor
付龙
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Shanghai Zhengbang Medical Technology Co Ltd
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Shanghai Zhengbang Medical Technology Co Ltd
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Priority to CN201520638475.3U priority Critical patent/CN205084112U/en
Application granted granted Critical
Publication of CN205084112U publication Critical patent/CN205084112U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a sustainable needle of keeping somewhere that provides the malleation, connect, lengthen hose, pjncture needle, puncture needle file and tubing assembly including infusing, the infusion connects passes through extension hose connecting catheters seat, the extension hose on be equipped with the malleation device, the malleation device include base and gyro wheel, be equipped with the infusion groove between base and the gyro wheel, the extension hose passes the groove of should infusing, the inside both sides of malleation device base be equipped with the guide rail, be equipped with two couples of gyro wheel positioner on the guide rail of both sides at least, infusion groove entrance point cross section be greater than infusion groove exit end cross section, base and gyro wheel, push away to base outlet end when the gyro wheel, the clearance of gyro wheel bottom and base prolonged 70%-80% of hose twice wall thickness this moment, the extension hose make by the macromolecular material that has the high elasticity, the wall thickness is 0.35mm-0.45mm. The embolism in the pipe can be avoided to this device, and the tube sealing is effectual, the simple operation, prolonged and keep somewhere the time effectively, can be favorable to judging the stifled pipe condition in addition.

Description

A kind of remaining needle that continuous positive pressure is provided
[technical field]
This utility model relates to technical field of medical instruments, when being specifically related to a kind of indwelling, can provide continuous positive pressure, without the need to tube sealing, avoids the remaining needle of catheter blockage.
[background technology]
Existing venoclysis needle is easy piercing blood vessel in infusion process, must change at every turn.The invention of venous detaining needle and application overcome these shortcomings, need nook closing member to extract out during use after completing venipuncture, only leave sleeve pipe, so can not injured blood vessel, can stay Ink vessel transfusing continuously with several days.Meanwhile, the use of venous detaining needle can also reduce patient because of venipuncture repeatedly and the misery caused, and alleviate the workload of nurse simultaneously, be convenient to clinical application, thus venous detaining needle is used widely clinically.
Existing venous detaining needle, in its extension tube, all cover has flow-stopping clip.During normal infusion, flow-stopping clip is in open mode, coordinates calparine cap or end cap to infuse by noting defeated device; When needs suspend transfusion, apply external force and fluid stopping clamping is closed, extension tube clamps and makes extension tube be in disconnection state by the boss in flow-stopping clip.The mode that this kind suspends transfusion be direct clamping mode rapidly, usual flow-stopping clip is semi-steel plastic material manufacture, due to the elastic reaction of plastics while directly clamping, make with the conduit of sick body contact position in produce negative pressure, thus cause the conduit be retained in human body to produce blood back, this blood back produces blood coagulation in inlying catheter at known causing, form the immediate cause of thrombosis or blocking, these blood coagulation bolts are hidden in inlying catheter end, be hidden in us and opaque Ink vessel transfusing, naked eyes cannot directly be observed and relatively hidden, affect follow-up transfusion, even if pressurization is washed open, thrombosis also may block blood capillary, even cause vasculitis, cause unnecessary malpractice.
Plugging is caused in order to avoid blood backflow to pin, adopt slowly injection positive pressure tube sealing method or malleation fluid stopping device positive pressure tube sealing, but existing malleation fluid stopping apparatus structure is complicated, expensive, and malleation effect is of short duration, in the indwelling time of more than ten hour, blood also can slowly infiltrate in remaining needle, may form thrombosis, this situation be avoided in indwelling time, can only to supplement heparin again, and supplementary heparin can form extra charge burden.
[summary of the invention]
This utility model is to solve the problem, there is provided a kind of simple to operate, blood back problem during simultaneously solving indwelling, not only while possessing malleation performance but possess avoid indwelling during because of blood back, and cause blood coagulation, blocking, thus shorten the technical problem of indwelling time, design a kind of novel structure, the remaining needle of continuous positive pressure can be provided in indwelling time.
To achieve these goals, design a kind of sustainable remaining needle that malleation is provided, comprise infusion connector, extend flexible pipe, puncture needle, Paracentesis needle holder and conduit tube component, infusion connector is by extending hose connection catheter block, described prolongation flexible pipe is provided with positive pressure devices, described positive pressure devices comprises base and roller, transfusion groove is provided with between base and roller, extend flexible pipe through this transfusion groove, described positive pressure devices chassis interior both sides are provided with guide rail, two side rails are at least provided with two pair roller positioners, described transfusion groove entrance point cross section is greater than transfusion groove port of export cross section, described base and roller, when roller is pushed into pan outlet end, now the gap of idler wheel bottom and base is extend flexible pipe twice wall thickness 70% ~ 80%, described prolongation flexible pipe is made by having elastomeric macromolecular material, and wall thickness is 0.35mm ~ 0.45mm.
Described guide rail and the parallel placement of prolongation flexible pipe.
Described transfusion groove entrance point cross-sectional width is greater than cross-sectional width in the middle part of cavity.
Described positioner is retaining muscle or snap ring or hasp or latch.
Described positioner, near entrance point, for preventing roller from exiting base, near the port of export, for preventing the rollback of roller in indwelling process, avoids producing blood back for a pair for a pair.
The using method of the remaining needle of continuous positive pressure is provided, comprises the following steps: 1, during stopping infusion, roller is pushed into pan outlet end, stop medicinal liquid backflow; 2, use 1ml syringe, extract 0.5ml normal saline; 3,0.5ml normal saline is expelled in remaining needle by calparine cap, keeps syringe core rod not rollback, extract syringe rapidly; 4, now extend flexible pipe to be stressed expansion, owing to extending the high resiliency of flexible pipe, hydraulic pressure is produced in the prolongation flexible pipe of infusion connector one end, this hydraulic pressure can make the prolongation flexible pipe of roller and base gap location produce gap, the normal saline before injected slowly can flow to inlying catheter by this gap, stop blood backflow in indwelling flexible pipe, avoid blood to solidify in inlying catheter, block.
This utility model compared with the existing technology, its advantage is: after transfusion completes, by injecting a small amount of normal saline, formed in prolongation flexible pipe and inlying catheter and continue forward flow, when avoiding transfusion next time, blood remains in conduit and forms thromboembolism, and tube sealing is effective, simple operation, effectively extend indwelling time; In addition when again infusing, pushing back roller and can form blood back, be conducive to judging plugging situation.
[accompanying drawing explanation]
Fig. 1 is the structural representation of this device;
Fig. 2 is the concrete structure schematic diagram of positive pressure devices in this device;
Fig. 3 is the top view of the roller of positive pressure devices in this device;
View when Fig. 4 is positive pressure devices unlatching;
Fig. 5 is the view of positive pressure devices when closing;
Fig. 6 is this device continuous positive pressure process schematic;
In figure: 1. sheath 2. inlying catheter 3. extends fungi-proofing block 11. infusion connector 12. retaining muscle 13. roller of flexible pipe 4. catheter block 5. batching pig 6. puncture needle 7. Paracentesis needle holder 8. positive pressure devices 9. calparine cap 10.;
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
As shown in Figure 1, comprise infusion connector for the remaining needle in the pusher positive pressure devices of extruding of remaining needle, extend flexible pipe, puncture needle and Paracentesis needle holder, infusion connector, by extending hose connection puncture needle and Paracentesis needle holder, extends flexible pipe and is provided with positive pressure devices.
The concrete structure figure of positive pressure devices is see Fig. 2, positive pressure devices comprises base and roller, transfusion groove is provided with between base and roller, extend flexible pipe through this transfusion groove, positive pressure devices chassis interior both sides are provided with guide rail, guide rail and the parallel placement of prolongation flexible pipe, two side rails are at least provided with two pair roller positioners.
Positioner can be retaining muscle or snap ring or the other forms of location structure such as hasp or latch.
Now provide following examples using retaining muscle as the positioner of roller:
Embodiment 1:
Positive pressure devices inside is provided with cavity, extend flexible pipe through this cavity, cavity entrance point side is provided with the retaining muscle of a protrusion, exits positive pressure devices for preventing roller, cavity exit end side is provided with the retaining muscle of a protrusion, for preventing the rollback of roller in indwelling process.Roller surface is provided with stamp, sees Fig. 3, in order to increasing friction force, prevents roller-coaster.
Cavity entrance point cross-sectional width in positive pressure devices is greater than cavity exit end cross-sectional width, during use, liquid flows through cavity through extending flexible pipe, positive pressure devices is opened, see Fig. 4, liquid inflow port is cavity entrance point, and liquid flowing outlet is cavity exit end, when roller-coaster is to cavity exit end, roller outer surface and cavity inner wall fit, and positive pressure devices closes, and sees Fig. 5.When will again infuse, needing first to push back roller, pushing back in process and can forming reverse flow and even blood back in prolongation flexible pipe, by observing whether have blood back, can judge whether inlying catheter plugging occurs.
The using method of the remaining needle of continuous positive pressure is provided, comprises the following steps, can see Fig. 6:
1, during stopping infusion, roller is pushed into pan outlet end, stops medicinal liquid backflow;
2, use 1ml syringe, extract 0.5ml normal saline;
3,0.5ml normal saline is expelled in remaining needle by calparine cap, keeps syringe core rod not rollback, extract syringe rapidly;
4, now extend flexible pipe to be stressed expansion, owing to extending the high resiliency of flexible pipe, hydraulic pressure is produced in the prolongation flexible pipe of infusion connector one end, this hydraulic pressure can make the prolongation flexible pipe of roller and base gap location produce gap, the normal saline before injected slowly can flow to inlying catheter by this gap, stop blood backflow in indwelling flexible pipe, avoid blood to solidify in inlying catheter, block.

Claims (5)

1. the sustainable remaining needle that malleation is provided, comprise infusion connector, extend flexible pipe, puncture needle, Paracentesis needle holder and conduit tube component, infusion connector is by extending hose connection catheter block, described prolongation flexible pipe is provided with positive pressure devices, described positive pressure devices comprises base and roller, transfusion groove is provided with between base and roller, extend flexible pipe through this transfusion groove, described positive pressure devices chassis interior both sides are provided with guide rail, two side rails are at least provided with two pair roller positioners, described transfusion groove entrance point cross section is greater than transfusion groove port of export cross section; Described base and roller, when roller is pushed into pan outlet end, now the gap of idler wheel bottom and base is extend flexible pipe twice wall thickness 70% ~ 80%; Described prolongation flexible pipe is made by having elastomeric macromolecular material, and wall thickness is 0.35mm ~ 0.45mm.
2. a kind of sustainable remaining needle providing malleation as claimed in claim 1, is characterized in that, described guide rail and the parallel placement of prolongation flexible pipe.
3. a kind of sustainable remaining needle providing malleation as claimed in claim 1, is characterized in that, described transfusion groove entrance point cross-sectional width is greater than cross-sectional width in the middle part of cavity.
4. a kind of sustainable remaining needle providing malleation as claimed in claim 1, is characterized in that, described positioner is retaining muscle or snap ring or hasp or latch.
5. a kind of sustainable remaining needle providing malleation as claimed in claim 1, is characterized in that, described positioner, a pair near entrance point, for preventing roller from exiting base, a pair near the port of export, for preventing the rollback of roller in indwelling process, avoid producing blood back.
CN201520638475.3U 2015-07-08 2015-08-21 A keep somewhere needle of continuous positive airway pressure is provided Withdrawn - After Issue CN205084112U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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CN2015204882720 2015-07-08
CN201520488272 2015-07-08
CN201520638475.3U CN205084112U (en) 2015-07-08 2015-08-21 A keep somewhere needle of continuous positive airway pressure is provided

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105056341A (en) * 2015-07-08 2015-11-18 上海正邦医疗科技有限公司 Remaining needle capable of providing positive pressure continuously and application method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105854125A (en) * 2016-04-05 2016-08-17 欧阳小青 Positive-pressure liquid stopping clamp
CN105944185A (en) * 2016-04-06 2016-09-21 欧阳小青 Thrombosis-preventing blood-stopping clip
CN106730141A (en) * 2016-12-23 2017-05-31 欧阳小青 A kind of safe type retention needle
CN107998484A (en) * 2017-12-28 2018-05-08 谢世庚 Washing pipe formula liquid stopping clamp
CN109091752A (en) * 2018-09-19 2018-12-28 华蓥市明月镇小学 A kind of disposable infusion connector

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Publication number Priority date Publication date Assignee Title
CN2077713U (en) * 1990-10-27 1991-05-29 刘建军 Logarithm graduation type safety perfusion tube clip.
CN2431890Y (en) * 2000-03-17 2001-05-30 上海米沙瓦医科工业有限公司 Flow regulator
CN2561421Y (en) * 2002-08-26 2003-07-23 上海长海医院 Disposable speed control quantitative infusion adjuster
CN203139264U (en) * 2013-03-20 2013-08-21 南通市肿瘤医院 Gear adjustable transfusion adjuster convenient and fast to use
CN103480060B (en) * 2013-09-16 2016-09-28 张丽君 A kind of medical convenient positive pressure remaining needle
CN105056341B (en) * 2015-07-08 2018-02-23 上海正邦医疗科技有限公司 A kind of remaining needle that continuous positive pressure is provided

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105056341A (en) * 2015-07-08 2015-11-18 上海正邦医疗科技有限公司 Remaining needle capable of providing positive pressure continuously and application method thereof
CN105056341B (en) * 2015-07-08 2018-02-23 上海正邦医疗科技有限公司 A kind of remaining needle that continuous positive pressure is provided

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CN105056341B (en) 2018-02-23

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AV01 Patent right actively abandoned

Granted publication date: 20160316

Effective date of abandoning: 20180223

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