CN204766834U - A keep somewhere needle for taking extrusion impulse type malleation device - Google Patents
A keep somewhere needle for taking extrusion impulse type malleation device Download PDFInfo
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- CN204766834U CN204766834U CN201520362363.XU CN201520362363U CN204766834U CN 204766834 U CN204766834 U CN 204766834U CN 201520362363 U CN201520362363 U CN 201520362363U CN 204766834 U CN204766834 U CN 204766834U
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- positive pressure
- pressure devices
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- pusher
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Abstract
The utility model relates to the technical field of medical equipment, concretely relates to a keep somewhere needle for taking extrusion impulse type malleation device, 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. The utility model discloses accomplishing the back in the infusion, through the extrusion, advance the malleation device, making the liquid in the extension hose flow to the pipe front end, make the pipe front end have liquid to flow out, blood retains and form the embolism in the pipe when avoiding infuse next time, and the tube sealing is effectual, the simple operation, lengthened and keep somewhere the time effectively.
Description
[technical field]
This utility model relates to technical field of medical instruments, and when being specifically related to one for using venous detaining needle to infuse, solution inlying catheter and the infusion set time of releasing produce negative pressure and occur that the band of blood back extrudes the remaining needle of pusher positive pressure devices.
[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.
Cause plugging in order to avoid blood backflow to pin, slowly injection positive pressure tube sealing method or malleation fluid stopping device positive pressure tube sealing be adopted, but existing malleation fluid stopping apparatus structure is complicated, expensive.
[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 band and extrude pusher device remaining needle.
To achieve these goals, design a kind of for the remaining needle with the pusher positive pressure devices of extruding, 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 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.
This utility model compared with the existing technology, its advantage is: after transfusion completes, by extruding, advance positive pressure devices, flowed in liquid conductive pipe front end in prolongation flexible pipe, catheter proximal end is made to have liquid to flow out, 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;
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.;
Specify Fig. 1 as Figure of abstract of the present utility model.
[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.
Claims (5)
1. one kind for extruding pusher positive pressure devices remaining needle, comprise infusion connector, extend flexible pipe, puncture needle, Paracentesis needle holder and conduit tube component, infusion connector is by extending hose connection catheter block, it is characterized in that 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.
2. a kind of for the remaining needle with the pusher positive pressure devices of extruding as claimed in claim 1, it is characterized in that described guide rail and the parallel placement of prolongation flexible pipe.
3. a kind of for the remaining needle with the pusher positive pressure devices of extruding as claimed in claim 1, it 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 for the remaining needle with the pusher positive pressure devices of extruding as claimed in claim 1, it is characterized in that described positioner is retaining muscle or snap ring or hasp or latch.
5. a kind of for the remaining needle with the pusher positive pressure devices of extruding as claimed in claim 1, it is characterized in that described positioner, a pair near entrance point, base is exited for preventing roller, near the port of export, for preventing the rollback of roller in indwelling process, avoid producing blood back for a pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520362363.XU CN204766834U (en) | 2015-05-29 | 2015-05-29 | A keep somewhere needle for taking extrusion impulse type malleation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520362363.XU CN204766834U (en) | 2015-05-29 | 2015-05-29 | A keep somewhere needle for taking extrusion impulse type malleation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204766834U true CN204766834U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520362363.XU Active CN204766834U (en) | 2015-05-29 | 2015-05-29 | A keep somewhere needle for taking extrusion impulse type malleation device |
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| CN (1) | CN204766834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944185A (en) * | 2016-04-06 | 2016-09-21 | 欧阳小青 | Thrombosis-preventing blood-stopping clip |
-
2015
- 2015-05-29 CN CN201520362363.XU patent/CN204766834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944185A (en) * | 2016-04-06 | 2016-09-21 | 欧阳小青 | Thrombosis-preventing blood-stopping clip |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |