CN105056341B - A kind of remaining needle that continuous positive pressure is provided - Google Patents
A kind of remaining needle that continuous positive pressure is provided Download PDFInfo
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- CN105056341B CN105056341B CN201510519539.2A CN201510519539A CN105056341B CN 105056341 B CN105056341 B CN 105056341B CN 201510519539 A CN201510519539 A CN 201510519539A CN 105056341 B CN105056341 B CN 105056341B
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- roller
- flexible pipe
- base
- positive pressure
- transfusion groove
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Abstract
The present invention relates to a kind of sustainable remaining needle for providing malleation, including infusion connector, extend flexible pipe, puncture needle, Paracentesis needle holder and conduit tube component, infusion connector is by extending flexible pipe connecting conduit seat, described extension flexible pipe is provided with positive pressure devices, described positive pressure devices include base and roller, transfusion groove is provided between base and roller, extend flexible pipe and pass through the transfusion groove, described positive pressure devices chassis interior both sides are provided with guide rail, two side rails are up to provided with two pair roller positioners less, and described transfusion groove entrance point cross section is more 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 twice of wall thickness of flexible pipe 70%~80%；For described extension flexible pipe by being made with elastomeric high polymer material, wall thickness is 0.35mm~0.45mm.The present apparatus can avoid the embolism in conduit, and tube sealing effect is good, simple operation, effectively extends indwelling time；Plugging situation can be facilitated deciding in addition.
Description
[technical field]
The present invention relates to technical field of medical instruments, and in particular to during a kind of indwelling, using the teaching of the invention it is possible to provide continuous positive pressure, without envelope
Pipe, avoid the remaining needle of catheter blockage.
[background technology]
Existing intravenous infusion needle easily pierces through blood vessel in infusion process, must change every time.The invention of venous detaining needle
These shortcomings are overcome with application, are needed to extract out nook closing member after completing venipuncture during use, sleeve pipe are only left, so will not damage
Blood vessel, it can stay in intravascular continuously with several days.Meanwhile the use of venous detaining needle can also reduce patient because of venipuncture repeatedly
It is painful caused by and, while mitigate the workload of nurse, it is easy to clinical application, thus venous detaining needle clinically obtains extensively
Using.
Existing venous detaining needle, flow-stopping clip is cased with its extension tube.During normal infusion, flow-stopping clip is in open shape
State, calparine cap or end cap is coordinated to be infused by infusion device；When needing to suspend transfusion, applying external force closes fluid stopping clamping,
Extension tube is clamped and extension tube is in disconnection state by the boss in flow-stopping clip.The mode of such a pause transfusion is rapidly straight
Clamping mode is connect, usual flow-stopping clip manufactures for semi-steel plastic material, and the elasticity due to plastics while directly clamping is made
With, make with producing negative pressure in the conduit of sick body contact position, so as to cause to be retained in the conduit in human body produce blood back, this time
Blood is to be known to result in producing blood coagulation in inlying catheter, form the immediate cause of thrombus or blocking, and these blood coagulation bolts are hidden in indwelling
Catheter tip, be hidden in we and it is opaque intravascular, visually can not directly observe and relatively hidden, influence follow-up defeated
Liquid, even if pressurization is washed open, thrombus may also can block capillary, even result in vasculitis, cause unnecessary malpractice.
In order to avoid causing plugging in blood backflow to pin, slowly injection positive pressure tube sealing method or malleation fluid stopping device are used
Positive pressure tube sealing, but existing malleation fluid stopping apparatus structure is complicated, it is expensive, and malleation effect is of short duration, at more than ten
In the indwelling time of hour, blood can be also infiltrated into slowly in remaining needle, it is possible to create thrombus, to avoid the situation from staying
Put and heparin is supplemented in the time, supplement heparin can form extra charge burden.
[content of the invention]
The present invention is to solve the above problems, there is provided it is a kind of simple to operate, while solve the problems, such as blood back during indwelling, i.e.,
But also with avoiding because of blood back during indwelling while possessing malleation performance, and cause blood clotting, block, during so as to shorten indwelling
Between technical problem, design that a kind of structure is novel, the remaining needle of continuous positive pressure can be provided in indwelling time.
To achieve these goals, design it is a kind of it is sustainable provide malleation remaining needle, including infusion connector, extend it is soft
Pipe, puncture needle, Paracentesis needle holder and conduit tube component, infusion connector is by extending flexible pipe connecting conduit seat, on described extension flexible pipe
Provided with positive pressure devices, described positive pressure devices include base and roller, and transfusion groove is provided between base and roller, extend flexible pipe and wear
The transfusion groove is crossed, described positive pressure devices chassis interior both sides are provided with guide rail, and two side rails are up to provided with two pair rollers and positioned less
Device, described transfusion groove entrance point cross-sectional area are more than transfusion groove port of export cross-sectional area；Described base and roller,
When roller is pushed into pan outlet end, now the gap of idler wheel bottom and base is extend twice of wall thickness of flexible pipe 70%~80%；
For described extension flexible pipe by being made with elastomeric high polymer material, wall thickness is 0.35mm~0.45mm, and described both sides are led
Two side rails are can be replaced at least provided with two pair roller positioners be provided with least three pair roller retaining muscle, described rolling on rail
Take turns retaining muscle to be respectively located at transfusion groove entrance point, at the transfusion groove port of export and in the middle part of guide rail, described base
There is a circular shaft structure above the port of export, circular shaft is provided with a hasp, for preventing roller from retracting, has below the front end of hasp at two
The barb of extension, when on buckle cap, barb will be buckled in the guide rail of base, has two through holes on hasp, described two
Through hole is the positioning hole of roller, this at two positioning hole be located at roller positioning for the first time and second of position positioned, prevent roller
Retract.
Described extension flexible pipe one end connection infusion connector and calparine cap, extend flexible pipe other end connection piercing portions, wear
Thorn part includes catheter block, Paracentesis needle holder and sheath, is provided with isolation ward in described catheter block, isolation ward is connected by inlying catheter
Puncture needle is connect, sheath is set in outside puncture needle and inlying catheter and one end is fixed on catheter block.
Described base bottom is provided with arcuate structure.
Described guide rail is placed in parallel with extending flexible pipe.
Described transfusion groove entrance point cross-sectional width is more than cross-sectional width in the middle part of cavity.
Described positioner is retaining muscle or snap ring or hasp or latch.
Described positioner, close to entrance point, for preventing roller from exiting base, close to the port of export, is used for a pair for a pair
In preventing rollback of the roller during indwelling, avoid producing blood back.
The present invention compared with the existing technology, the advantage is that：After the completion of transfusion, by injecting a small amount of physiological saline,
Extending to be formed in flexible pipe and inlying catheter and continue forward flow, blood, which remains in, when avoiding infusing next time forms embolism in conduit,
Tube sealing effect is good, simple operation, effectively extends indwelling time；In addition when infusing again, blood back can be formed by pushing back roller,
Facilitate deciding on plugging situation.In addition, hasp structure can also effectively prevent roller-coaster, it is accurately positioned, ensures patient safety.
[brief description of the drawings]
Fig. 1 is the apparatus structure schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the concrete structure schematic diagram of the positive pressure devices of the embodiment of the present invention 1；
Fig. 3 be the embodiment of the present invention 1 device in positive pressure devices roller top view；
Fig. 4 is view when positive pressure devices are opened in the embodiment of the present invention 1；
Fig. 5 is view when positive pressure devices close in the embodiment of the present invention 1；
Fig. 6 is the device continuous positive pressure process schematic of the embodiment of the present invention 1；
Fig. 7 is the concrete structure schematic diagram of positive pressure devices in the embodiment of the present invention 2；
View when Fig. 8 is first time malleation in the embodiment of the present invention 2；
View when Fig. 9 is second of malleation in the embodiment of the present invention 2；
Figure 10 is the concrete structure schematic diagram of positive pressure devices in the embodiment of the present invention 3；
Figure 11 is view when positive pressure devices are opened in the embodiment of the present invention 3；
View when Figure 12 is positive pressure devices first time malleation in the embodiment of the present invention 3；
View when Figure 13 is second of malleation of positive pressure devices in the embodiment of the present invention 3；
Figure 14 is the front view of hasp in the embodiment of the present invention 3；
Figure 15 is the side view of hasp in the embodiment of the present invention 3；
Figure 16 is the top view of hasp in the embodiment of the present invention 3；
In figure：1. the inlying catheter 3. of sheath 2. extends the puncture needle of 6. puncture needle of flexible pipe 4. catheter block, 5. batching pig 7.
The positioning bar of 10. 12. retaining muscle of fungi-proofing 11. infusion connector of block, 13. roller of seat 8. positive pressure devices, 9. calparine cap 14.
15. the barb of 16. circular shaft of hasp, 151. through hole 152.；
Specify the Figure of abstract that Fig. 1 is the present invention.
[embodiment]
The invention will be further described below in conjunction with the accompanying drawings, for the structure and principle of this device people professional to this
It is very clear.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this
Invention.
Embodiment 1
It is as shown in figure 1, soft including infusion connector, extension for the remaining needle in the pusher positive pressure devices of extruding of remaining needle
Pipe, puncture needle and Paracentesis needle holder, infusion connector extend flexible pipe and are provided with just by extending flexible pipe connecting puncture needle and Paracentesis needle holder
Pressure device.
The concrete structure diagram of positive pressure devices includes base and roller, is provided between base and roller referring to Fig. 2, positive pressure devices
Infuse groove, extend flexible pipe and pass through the transfusion groove, positive pressure devices chassis interior both sides are provided with guide rail, and flexible pipe is parallel puts for guide rail and extension
Put, two side rails are up to provided with two pair roller positioners less.
Positioner can be retaining muscle or the location structure of the other forms such as snap ring or hasp or latch.
Now the positioner using retaining muscle as roller provides following examples：
Cavity is provided with inside positive pressure devices, extends flexible pipe and passes through the cavity, cavity entrance point side is provided with stopping for a protrusion
Muscle is moved back, for preventing roller from exiting positive pressure devices, cavity exit end side is provided with the retaining muscle of a protrusion, for preventing roller from existing
Rollback during indwelling.Roller surface is provided with stamp, sees Fig. 3, for increasing friction force, prevents roller-coaster.
Cavity entrance point cross-sectional width in positive pressure devices is more than cavity exit end cross-sectional width, and liquid passes through during use
Extend flexible pipe and flow through cavity, positive pressure devices are opened, and referring to Fig. 4, liquid inflow port is cavity entrance point, and liquid flowing outlet is cavity
The port of export, during roller-coaster to cavity exit end, roller outer surface fits with cavity inner wall, positive pressure devices closure, sees Fig. 5.
When to infuse again, it is necessary to first push back roller, reverse flow or even blood back can be formed in flexible pipe extending during pushing back,
By having seen whether blood back, it can be determined that whether inlying catheter occurs plugging.
Embodiment 2
Infusion connector extends flexible pipe and is provided with positive pressure devices, positive pressure devices include bottom by extending flexible pipe connecting conduit seat
Seat and roller, transfusion groove is provided between base and roller, extends flexible pipe and pass through the transfusion groove, positive pressure devices chassis interior both sides are set
There is guide rail, guide rail is placed in parallel with extending flexible pipe.Two side rails are up to provided with three pair roller retaining muscle less, and transfusion groove entrance point is horizontal
Section is more than transfusion groove port of export cross section, and transfusion groove entrance point cross-sectional width is more than cross-sectional width in the middle part of cavity.
As shown in fig. 7, a pair of retaining muscle is close to entrance point, for preventing roller from exiting base；One is pointed in the middle part of guide rail,
For first time positioning roller after the completion of transfusion and prevent roller from retracting, avoid producing blood back；One is pointed to, close to the port of export, use
Position for the second time during indwelling and prevent roller from retracting, avoid producing blood back.
Base bottom is provided with and is bonded with the finger shape of people, and the arc knot of base is clamped when pushing away and push back roller before being easy to
Structure, convenient operation.Positive pressure devices under initial and opening can be by positive pressure devices to extending flexible pipe by shifting roller
Power is acted, by extruding, promote positive pressure devices after the completion of transfusion, the liquid in extension flexible pipe is flowed to catheter proximal end,
Catheter proximal end is set to have liquid outflow, blood, which remains in, when avoiding infusing next time forms embolism in conduit, as shown in Fig. 8~Fig. 9.
Embodiment 3
Extend flexible pipe and pass through the transfusion groove, positive pressure devices chassis interior both sides are provided with guide rail, and guide rail is parallel with extending flexible pipe
Place.Two side rails are up to provided with three pair roller retaining muscle less, and it is transversal that transfusion groove entrance point cross section is more than the transfusion groove port of export
Face, transfusion groove entrance point cross-sectional width are more than cross-sectional width in the middle part of cavity.
A pair of retaining muscle is close to entrance point, for preventing roller from exiting base；One is pointed in the middle part of guide rail, for having infused
Into rear first time positioning roller and prevent roller from retracting, avoid producing blood back；One is pointed to close to the port of export, for indwelling process
In position for the second time and prevent roller from retracting, avoid producing blood back.There is a circular shaft structure above pan outlet end, set on circular shaft
There is a hasp, as shown in figure 13, for preventing roller from retracting.There is the barb extended at two below the front end of hasp, such as Figure 15 institutes
Show, when on buckle cap, barb will be buckled in the guide rail of base.There are hasp two sections of through holes just to correspond to roller positioning for the first time
With the position of second of positioning, prevent roller from retracting.
Base bottom is provided with and is bonded with the finger shape of people, and the arc knot of base is clamped when pushing away and push back roller before being easy to
Structure, convenient operation.Positive pressure devices schematic diagram under initial and opening is as shown in figure 11, can be by just by shifting roller
Pressure device acts power to extending flexible pipe, by extruding, promoting positive pressure devices after the completion of transfusion, makes the liquid in extension flexible pipe
Flowed to catheter proximal end, catheter proximal end is had liquid outflow, blood, which remains in, when avoiding infusing next time forms embolism in conduit, such as
Shown in Figure 12~Figure 13.
Claims (7)
1. a kind of sustainable remaining needle that malleation is provided, including infusion connector, extension flexible pipe, puncture needle, Paracentesis needle holder and conduit
Component, infusion connector are provided with positive pressure devices, described positive press fitting by extending flexible pipe connecting conduit seat, described extension flexible pipe
Put including base and roller, transfusion groove is provided between base and roller, extend flexible pipe and pass through the transfusion groove, described positive pressure devices
Chassis interior both sides are provided with guide rail, and two side rails are up to provided with two pair roller positioners less, and described transfusion groove entrance point is horizontal
Area of section is more than transfusion groove port of export cross-sectional area；Described base and roller, when roller is pushed into pan outlet end, now
The gap of idler wheel bottom and base is extend twice of wall thickness of flexible pipe 70%~80%；Described extension flexible pipe is by with high resiliency
High polymer material be made, wall thickness is 0.35mm~0.45mm, and two described side rails are up to provided with two pair rollers positioning dress less
Put and can be replaced two side rails and be provided with least three pair roller retaining muscle, described roller retaining muscle is located at close to transfusion groove respectively
At entrance point, at the transfusion groove port of export and in the middle part of guide rail, there are a circular shaft structure, circular shaft above described pan outlet end
A hasp is provided with, for preventing roller from retracting, there is the barb extended at two below the front end of hasp, when on buckle cap, is fallen
Hook will be buckled in the guide rail of base, has two through holes on hasp, and described two through holes are the positioning hole of roller, and this is determined at two
Position hole position prevents roller from retracting in the position of roller positioning and second of positioning for the first time.
A kind of 2. sustainable remaining needle that malleation is provided as claimed in claim 1, it is characterised in that described extension flexible pipe one
End connection infusion connector and calparine cap, extend flexible pipe other end connection piercing portions, and piercing portions include catheter block, Paracentesis needle holder
And sheath, described catheter block is interior to be provided with isolation ward, and isolation ward is set in puncture needle by inlying catheter connecting puncture needle, sheath
And simultaneously one end is fixed on catheter block outside inlying catheter.
3. a kind of sustainable remaining needle that malleation is provided as claimed in claim 1, it is characterised in that described base bottom is set
There is arcuate structure.
4. a kind of sustainable remaining needle that malleation is provided as claimed in claim 1, it is characterised in that described guide rail and extension
Flexible pipe is placed in parallel.
A kind of 5. sustainable remaining needle that malleation is provided as claimed in claim 1, it is characterised in that described transfusion groove import
Cross-sectional width is held to be more than cross-sectional width in the middle part of cavity.
6. a kind of sustainable remaining needle that malleation is provided as claimed in claim 1, it is characterised in that described positioner is
Retaining muscle or snap ring or hasp or latch.
A kind of 7. sustainable remaining needle that malleation is provided as claimed in claim 1, it is characterised in that described positioner, one
To close to entrance point, for preventing roller from exiting base, a pair close to the port of export, for preventing roller returning during indwelling
Move back, avoid producing blood back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510519539.2A CN105056341B (en) | 2015-07-08 | 2015-08-21 | A kind of remaining needle that continuous positive pressure is provided |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488272 | 2015-07-08 | ||
| CN2015204882720 | 2015-07-08 | ||
| CN201510519539.2A CN105056341B (en) | 2015-07-08 | 2015-08-21 | A kind of remaining needle that continuous positive pressure is provided |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105056341A CN105056341A (en) | 2015-11-18 |
| CN105056341B true CN105056341B (en) | 2018-02-23 |
Family
ID=54485991
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510519539.2A Active CN105056341B (en) | 2015-07-08 | 2015-08-21 | A kind of remaining needle that continuous positive pressure is provided |
| CN201520638475.3U Withdrawn - After Issue CN205084112U (en) | 2015-07-08 | 2015-08-21 | A keep somewhere needle of continuous positive airway pressure is provided |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520638475.3U Withdrawn - After Issue CN205084112U (en) | 2015-07-08 | 2015-08-21 | A keep somewhere needle of continuous positive airway pressure is provided |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105056341B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Citations (6)
| 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 |
| CN103480060A (en) * | 2013-09-16 | 2014-01-01 | 张丽君 | Convenient medical positive-pressure remaining needle |
| CN205084112U (en) * | 2015-07-08 | 2016-03-16 | 上海正邦医疗科技有限公司 | A keep somewhere needle of continuous positive airway pressure is provided |
-
2015
- 2015-08-21 CN CN201510519539.2A patent/CN105056341B/en active Active
- 2015-08-21 CN CN201520638475.3U patent/CN205084112U/en not_active Withdrawn - After Issue
Patent Citations (6)
| 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 |
| CN103480060A (en) * | 2013-09-16 | 2014-01-01 | 张丽君 | Convenient medical positive-pressure remaining needle |
| CN205084112U (en) * | 2015-07-08 | 2016-03-16 | 上海正邦医疗科技有限公司 | A keep somewhere needle of continuous positive airway pressure is provided |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105056341A (en) | 2015-11-18 |
| CN205084112U (en) | 2016-03-16 |
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