CN204840496U - Keep somewhere needle with malleation device - Google Patents

Keep somewhere needle with malleation device Download PDF

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Publication number
CN204840496U
CN204840496U CN201520488274.XU CN201520488274U CN204840496U CN 204840496 U CN204840496 U CN 204840496U CN 201520488274 U CN201520488274 U CN 201520488274U CN 204840496 U CN204840496 U CN 204840496U
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China
Prior art keywords
positive pressure
pressure devices
guide rail
flexible pipe
infusion
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Active
Application number
CN201520488274.XU
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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 CN201520488274.XU priority Critical patent/CN204840496U/en
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Abstract

The utility model relates to an infusion apparatus technical field specifically is a keep somewhere needle with malleation device, is equipped with the malleation device on the extension hose, and the malleation device includes base and gyro wheel, is equipped with the infusion groove between base and the gyro wheel, is equipped with the guide rail in the inside both sides of base, is equipped with three pair at least gyro wheel stopping muscle on the guide rail of both sides, and gyro wheel stopping muscle is located near the groove entrance point department of infusing respectively, is close to infusion groove exit end to be sentenced and the guide rail middle part. The utility model discloses an in the use, the infusion accomplish the back through the extrusion, advance the malleation device, make 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 the next time infusion, the tube sealing is effectual, the simple operation, lengthened and keep somewhere the time effectively, during keeping somewhere, discovery blood returns to ooze and to provide the malleation once more, reduces stifled emergence of managing, in addition when infusing once more, return and push away the gyro wheel and can form back blood, be favorable to judging a stifled tub condition.

Description

A kind of remaining needle with positive pressure devices
[technical field]
This utility model relates to infusion apparatus technical field, specifically a kind of remaining needle with positive pressure devices.
[background technology]
Existing venoclysis needle is easy piercing blood vessel in infusion process, must change at every turn.The utility model 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.Even if use malleation fluid stopping device on the market, only can avoid blood back problem when having infused, in 18 to 20 hours sections of inter-infusion interval, blood still can bleed back in inlying catheter.
[utility model content]
The purpose of this utility model is exactly to solve the problems referred to above in prior art, a kind of novel structure is provided, simple to operate, blood back problem during simultaneously solving indwelling, and namely possess malleation performance, blood coagulation is caused because of blood back during indwelling can being avoided again, blocking and shorten the remaining needle with positive pressure devices of indwelling time, comprise infusion connector, infusion connector is by extending hose connection catheter block, extend flexible pipe and be provided with positive pressure devices, positive pressure devices comprises base and roller, transfusion groove is provided with between base and roller, guide rail is provided with in the both sides, inside of base, two side rails are provided with at least three pair roller retaining muscle, roller retaining muscle lays respectively near transfusion groove entrance point place, in the middle part of transfusion groove port of export place and guide rail, one or more pairs of retaining muscle near entrance point can be used for preventing roller from exiting base, the one or more pairs of retaining muscle be positioned in the middle part of guide rail can be used for transfusion complete after first time positioning roller and prevent roller rollback, avoid producing blood back, the one or more pairs of retaining muscle being arranged in the close port of export can be used for indwelling process second time and locate and prevent roller rollback, avoid producing blood back.
The entrance point cross-sectional area of transfusion groove is greater than the port of export cross-sectional area of transfusion groove.
Guide rail be arranged in parallel each other with prolongation flexible pipe.
The cross-sectional width of transfusion groove entrance point is greater than the internal cavity cross-sectional width extending flexible pipe.
Base bottom is provided with arcuate structure, fits, clamp base when pushing away and push back roller before being convenient to the finger shape of people.
Extend flexible pipe one end and connect infusion connector and calparine cap, extend the flexible pipe other end and connect piercing portions, piercing portions comprises catheter block, Paracentesis needle holder and sheath, isolation room is provided with in catheter block, isolation room is by inlying catheter connecting puncture needle, and sheath is set in puncture needle and the outside also one end of inlying catheter is fixed on catheter block.
The bottom of guide rail and transfusion groove is provided with positioning bar, and when the axle of roller crosses retaining muscle, positioning bar can prevent roller to travel forward more position, avoids blood back.
This utility model compared with the existing technology, its advantage is in use procedure of the present utility model, by extruding, propelling positive pressure devices after having infused, flowed in liquid conductive pipe front end in prolongation flexible pipe, make catheter proximal end have liquid to flow out, when avoiding infuse next time, blood remains in conduit and forms thromboembolism, tube sealing is effective, simple operation, effectively extend indwelling time, during indwelling, find that blood bleeds back and again can provide malleation, reduce the generation of plugging; 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 utility model device;
Fig. 2 is the concrete structure schematic diagram of positive pressure devices in this utility model device;
Fig. 3 is the top view of the roller of positive pressure devices in this utility model device;
View when Fig. 4 is the unlatching of this utility model positive pressure devices;
View when Fig. 5 is this utility model positive pressure devices first time malleation;
View when Fig. 6 is this utility model positive pressure devices second time malleation;
In figure: 1. sheath 2. inlying catheter 3. extends fungi-proofing block 11. infusion connector 12. retaining muscle 13. roller 14. positioning bar 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.
This utility model for a kind of for using venous detaining needle infuse time, solution inlying catheter and the infusion set time of releasing produce negative pressure and occur blood back, and the remaining needle that in indwelling process, blood bleeds back.
As shown in Figure 1, this utility model comprises infusion connector, extends flexible pipe, puncture needle, Paracentesis needle holder and conduit tube component, infusion connector is by extending hose connection catheter block, extend flexible pipe and be provided with positive pressure devices, positive pressure devices comprises base and roller, is provided with transfusion groove between base and roller, extends 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 three pair roller retaining muscle, transfusion groove entrance point cross section is greater than transfusion groove port of export cross section, and transfusion groove entrance point cross-sectional width is greater than cross-sectional width in the middle part of cavity.
A pair, retaining muscle, near entrance point, exits base for preventing roller; Be positioned at for a pair in the middle part of guide rail, for rear first time positioning roller and prevent roller rollback of having infused, avoid producing blood back; Be positioned at for a pair near the port of export, locate for second time in indwelling process and prevent roller rollback, avoid producing blood back.
Base bottom is provided with fits with the finger shape of people, clamps the arcuate structure of base, handled easily when pushing away and push back roller before being convenient to.Initial and positive pressure devices schematic diagram under opening as shown in Figure 4, namely by positive pressure devices, active force is produced to prolongation flexible pipe by shifting roller, by extruding, propelling positive pressure devices after having infused, flowed in liquid conductive pipe front end in prolongation flexible pipe, catheter proximal end is made to have liquid to flow out, when avoiding infuse next time, blood remains in conduit and forms thromboembolism, as shown in figures 5 and 6.

Claims (5)

1. one kind has the remaining needle of positive pressure devices, comprise infusion connector, described infusion connector is by extending hose connection catheter block, it is characterized in that described prolongation flexible pipe is provided with positive pressure devices, positive pressure devices comprises base and roller, transfusion groove is provided with between described base and roller, guide rail is provided with in the both sides, inside of base, two side rails are provided with at least three pair roller retaining muscle, described roller retaining muscle lays respectively near transfusion groove entrance point place, in the middle part of transfusion groove port of export place and guide rail, the entrance point cross-sectional area of transfusion groove is greater than the port of export cross-sectional area of transfusion groove.
2. a kind of remaining needle with positive pressure devices as claimed in claim 1, is characterized in that described guide rail and extends flexible pipe and be arranged in parallel each other.
3. a kind of remaining needle with positive pressure devices as claimed in claim 1, is characterized in that the cross-sectional width of described transfusion groove entrance point is greater than the internal cavity cross-sectional width extending flexible pipe.
4. a kind of remaining needle with positive pressure devices as claimed in claim 1, is characterized in that described base bottom is provided with arcuate structure.
5. a kind of remaining needle with positive pressure devices as claimed in claim 1, it is characterized in that described prolongation flexible pipe one end connects infusion connector and calparine cap, extend the flexible pipe other end and connect piercing portions, piercing portions comprises catheter block, Paracentesis needle holder and sheath, isolation room is provided with in described catheter block, isolation room is by inlying catheter connecting puncture needle, and sheath is set in puncture needle and the outside also one end of inlying catheter is fixed on catheter block.
CN201520488274.XU 2015-07-08 2015-07-08 Keep somewhere needle with malleation device Active CN204840496U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520488274.XU CN204840496U (en) 2015-07-08 2015-07-08 Keep somewhere needle with malleation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520488274.XU CN204840496U (en) 2015-07-08 2015-07-08 Keep somewhere needle with malleation device

Publications (1)

Publication Number Publication Date
CN204840496U true CN204840496U (en) 2015-12-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520488274.XU Active CN204840496U (en) 2015-07-08 2015-07-08 Keep somewhere needle with malleation device

Country Status (1)

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CN (1) CN204840496U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106039597A (en) * 2016-06-29 2016-10-26 青岛大学附属医院 Percutaneous puncture type lung push-away device with balloon retained in thoracic cavity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106039597A (en) * 2016-06-29 2016-10-26 青岛大学附属医院 Percutaneous puncture type lung push-away device with balloon retained in thoracic cavity

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