CN209137595U - A kind of intravascular remaining needle of positive pressure liquid capsule self-sealing - Google Patents
A kind of intravascular remaining needle of positive pressure liquid capsule self-sealing Download PDFInfo
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- CN209137595U CN209137595U CN201721749527.XU CN201721749527U CN209137595U CN 209137595 U CN209137595 U CN 209137595U CN 201721749527 U CN201721749527 U CN 201721749527U CN 209137595 U CN209137595 U CN 209137595U
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- liquid capsule
- female luer
- received basis
- needle
- sealing
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Abstract
The intravascular remaining needle of the utility model positive pressure liquid capsule self-sealing is mainly made of main element A, component I B and component II C.The operation of the utility model positive pressure liquid capsule self-sealing remaining needle is extremely simple, and as received basis liquid capsule closes infusion channel and provides continuous positive pressure, tube sealing, it is anti-backflow it is infallible with antithrombotic effect；It is very easy to grasp when puncturing merging remaining needle, without aspiration medicinal liquid and prepares tube-sealing solution when care operation, operation can be completed in a singlehanded movement, without consuming disposable syringe, flusher, saving care operation step, raising nursing efficiency and quality.
Description
[technical field]
The utility model belongs to the field of medical instrument technology.More specifically, the utility model relates to a kind of positive pressure liquid capsule from
The intravascular remaining needle of envelope formula.
[background technique]
The reason of blood vessel remaining needle plugging is the coagulation factors such as the blood platelet when blood reflux is into catheter lumen, in blood
In low flow velocity conduit intravascular coagulation, thrombus is formed and plugging.In order to guarantee that conduit can be reused, it is necessary to be prevented using tube sealing technology
Plugging, " tube sealing " have become a specific term in medical treatment and nursing.
Currently, " tube sealing " in standard method is to inject physiological saline or heparin in sealing liquid in conduit " tube sealing ", it is this
" tube sealing " is to allow physiological saline or other tube-sealing solutions as working solution matter to occupy conduit cavity space, makes blood and its hemostatic composition
It not can enter in conduit；Secondly, the physiological saline or other tube-sealing solutions in conduit dilute these blood coagulation substances, to can also prolong
Slow setting blood forms thrombus.
But human vein blood pressure is fluctuated with breathing and heartbeat, tube-sealing solution is gradually lost after infusion stops, " just
The positive pressure of press seal pipe " disappears quickly, has blood reflux to enter in conduit at once, or even is extended to needle stand and farther perfusion tube
In, these blood coagulation substances will form microthrombus, and other than obstruction conduit influences infusion, in infusion next time, these microthrombus are rushed
Into blood circulation, pulmonary capillaries are blocked, form Granuloma in lung and alveolar infarct.
Such issues that solution, best bet is that by be opened in catheter tip other than frequently rinsing with tube sealing
Conduit is closed at mouthful, or is reduced towards vasotropic inlying catheter dead space, and the closer plugging device the better from catheter opening.
Therefore, for the prior art there are these technological deficiencies, the utility model people is finally complete by lot of experiments
At the utility model.
[utility model content]
[technical problems to be solved]
The purpose of the utility model is to provide a kind of intravascular remaining needles of positive pressure liquid capsule self-sealing.
[technical solution]
The utility model is achieved through the following technical solutions.
The utility model relates to a kind of intravascular remaining needles of positive pressure liquid capsule self-sealing, it is mainly by main element A, component IB
It is formed with component IIC；Wherein main element A with recessed female Luer needle stand 1, inlying catheter 2 and infusion channel 3 by forming；In band
The end of recessed female Luer needle stand 1 is inlying catheter 2, and inlying catheter 2 constitutes infusion channel with recessed 1 inner cavity of female Luer needle stand
3；
Component IB is formed by connecting by steel needle core 4 with convex female Luer steel needle core handle 5；
Component IIC is by as received basis liquid capsule 6, convex female Luer as received basis liquid capsule cap 7, inside and outside liquid capsule communicating pipe 8 and outer liquid capsule 9
It is connected in sequence；Convex female Luer as received basis liquid capsule cap 7 is in the junction of as received basis liquid capsule 6 Yu inside and outside liquid capsule communicating pipe 8；
In use, the steel needle core 4 of component IB is placed in inlying catheter 2, the convex Shandong with convex female Luer steel needle core handle 5 is allowed
Your connector is fitted close with the recessed female Luer with recessed female Luer needle stand 1, and then steel needle core 4 pierces through after skin and vascular wall just
Inlying catheter 2 can be guided to be placed in intravascular；After removing steel needle core 4, component IIC is inserted into in recessed female Luer needle stand 1, is allowed
Convex female Luer as received basis liquid capsule cap 7 is fitted close with the recessed female Luer with recessed female Luer needle stand 1；
When infusion, as received basis liquid capsule 6 is not filled, enters blood vessel by infusion channel 3 to transfusion fluid；When stopping is infused
When, external liquid capsule 9 is pressurizeed, and is filled as received basis liquid in as received basis liquid capsule 6 and is kept its pressure, prevents blood reflux to infusion
In channel 3.
A kind of preferred embodiment according to the present utility model, it is described with recessed female Luer needle stand 1, inlying catheter 2, band
Convex female Luer steel needle core handle 5, as received basis liquid capsule pipe 6, inside and outside liquid capsule communicating pipe 8 and outer liquid capsule 9 are all with polycarbonate or to gather
Made of ethylene.
Another kind preferred embodiment according to the present utility model, shape after as received basis liquid capsule 6 is full with recessed Rule
1 cavity shape of connector needle stand is identical or high resiliency U-tube.
Another kind preferred embodiment according to the present utility model, outer 9 shape of liquid capsule is cylinder, cuboid, ellipse
Shape or circle.
The utility model is described in more detail below.
Recessed female Luer, the recessed Rule is arranged in needle stand tail end in the utility model intravascular remaining needle of positive pressure liquid capsule self-sealing
Connector carries out vascular puncture in conjunction with convex female Luer steel needle core handle and places conduit, finishes in conduit placement, removes steel needle
After core, for the recessed female Luer in conjunction with convex female Luer as received basis liquid capsule cap, as received basis sac segment is in convex female Luer
In as received basis liquid capsule cap, therefore, the as received basis liquid capsule that can be filled repeatedly is provided in needle stand.As received basis liquid capsule is when full
Infusion channel can be closed and lasting positive pressure is provided.It is different from physiological saline and heparin drug tube sealing, utility model works
Using infusion channel in fluid physics characteristic and thin-walled liquid capsule method closing needle stand, " as received basis liquid " is not lost, Neng Goubao liquid capsule
Hold " positive pressure " state.
The utility model relates to a kind of intravascular remaining needle of positive pressure liquid capsule self-sealing, it referring specifically to attached drawing 1.This is practical
The intravascular remaining needle of novel positive pressure liquid capsule self-sealing is mainly made of main element A, component I B and component IIC.
Main element A with recessed female Luer needle stand 1, inlying catheter 2 and infusion channel 3 by forming；With recessed female Luer
The end of needle stand 1 is inlying catheter 2, and inlying catheter 2 constitutes infusion channel 3 with recessed 1 inner cavity of female Luer needle stand；Main element
A specific structure is referring to attached drawing 1-2.
The recessed female Luer needle stand 1 of the utility model band is one end installation inlying catheter 2, and the other end installs recessed female Luer.
Female Luer (Luertaper) is that one kind is standardized micro without connector is seeped, and is connect by public female Luer with the female Luer to match
Head connects, and is now widely used in medicine and Laboratory Instruments.Convex Rule of public female Luer that the utility model uses connects
Head and the recessed female Luer of female Luer connector to match are all current market sales of products, such as by the excellent plastic tube of Guangzhou collection
The product that company, part Science and Technology Ltd. is sold with trade name JU product type FTLL12-28.It is held in relation to female Luer
Face will not be described in great detail.
Component IB is formed by connecting by steel needle core 4 with convex female Luer steel needle core handle 5；The steel needle core that the utility model uses
It is all current market sales of product with steel needle core handle.Component IB specific structure is referring to attached drawing 1-1.
Component IIC is by as received basis liquid capsule 6, convex female Luer as received basis liquid capsule cap 7, inside and outside liquid capsule communicating pipe 8 and outer liquid capsule 9
It is connected in sequence；Convex female Luer as received basis liquid capsule cap 7 is in the junction of as received basis liquid capsule 6 Yu inside and outside liquid capsule communicating pipe 8；
Component IIC specific structure is referring to attached drawing 1-3.
In the present invention, the shape after as received basis liquid capsule 6 is full is with recessed 1 cavity shape of female Luer needle stand
Identical or high resiliency U-tube；Outer 9 shape of liquid capsule is cylinder, cuboid, ellipse or circle.
The intravascular remaining needle specific structure of positive pressure liquid capsule self-sealing is referring to attached drawing 2 when puncturing use.By the steel needle of component IB
Core 4 is placed in inlying catheter 2, allow the convex female Luer with convex female Luer steel needle core handle 5 with the recessed of recessed female Luer needle stand 1
Female Luer is fitted close, and then steel needle core 4 pierces through skin and that inlying catheter 2 can be guided to be placed in after vascular wall is intravascular；
The intravascular remaining needle specific structure of positive pressure liquid capsule self-sealing is removed after steel needle core 4 referring to the main element A of attached drawing 1.
By component IIC insertion in recessed female Luer needle stand 1, allow convex female Luer as received basis liquid capsule cap 7 with recessed female Luer needle stand 1
Recessed female Luer be fitted close；
The intravascular remaining needle specific structure of positive pressure liquid capsule self-sealing is referring to attached drawing 3 when infusion.As received basis liquid capsule 6 is not filled
It is full of, blood vessel is entered by infusion channel 3 to transfusion fluid；
Be not infused tube sealing when the intravascular remaining needle specific structure of positive pressure liquid capsule self-sealing referring to attached drawing 4.When stopping is infused
When, external liquid capsule 9 is pressurizeed, and is filled as received basis liquid in as received basis liquid capsule 6 and is kept its pressure, prevents blood reflux to infusion
In channel 3.
In the present invention, it is described with recessed female Luer needle stand 1, inlying catheter 2, with convex female Luer steel needle core handle
5, as received basis liquid capsule 6, inside and outside liquid capsule communicating pipe 8 and outer liquid capsule 9 are all made of polycarbonate or polyethylene.
The utility model has used serial female Luer to guarantee to meet sterility requirements always in needle stand and inlying catheter.
In the present invention, needle stand 1, inlying catheter 2, with convex female Luer steel needle core handle 5, as received basis liquid capsule 6, inside and outside
Liquid capsule communicating pipe 8 and outer liquid capsule 9 are manufactured with polycarbonate or polyethylene, and wherein as received basis liquid capsule 6 is filled in as received basis liquid
It can be expanded after being full of.The polycarbonate or polyethylene that the utility model uses all are current market sales of products, such as by
Bayer A.G is with trade name MAKROLON or the product sold by Malaysian PETLIN company with trade name PETLIN.
Other materials similar with polycarbonate or polyethylene performance, for example, polystyrene, polyvinyl chloride, polypropylene, nylon, terylene,
Polyurethane etc. also may be used to the utility model, also be within the protection scope of the utility model.
The components such as needle stand 1, inlying catheter 2, as received basis liquid capsule 6, steel needle core 4, female Luer that the utility model uses
It is the component of sale product currently on the market, such as by Bibi Medical Apparatus Co., Ltd., Suzhou with the closed of trade name " fearful Ma "
Formula remaining needle, Weigao Group Co., Ltd. have with the disposable vein remaining needle of trade name " clean auspicious " or Suzhou woods China medical instrument
The component of " pipe-blocking-proof remaining needle " product of limit company sale.
The positive pressure liquid capsule self-sealing remaining needle of the utility model can be used according to conventional remaining needle application method, only be infused
Whether meaning preoperation inspection working solution matter leaks.
The characteristics of the utility model positive pressure liquid capsule self-sealing remaining needle be by be located at needle stand tail end female Luer with
The as received basis liquid capsule pipe being arranged in needle stand, by making its full rear enclosed defeated to as received basis liquid capsule pipe pressurization injection working solution matter
Liquid channel, closure point is close apart from inlying catheter end, and working solution matter may not flow into blood circulation system in liquid capsule；Thin-walled liquid capsule
Elasticity provide continuous positive pressure prevent from leading to blood backflow because of intravascular pressure fluctuation；Liquid capsule communicating pipe makes tube sealing inside and outside flexibility
Operation strength, which will not be conducted to endovascular inlying catheter, avoids injury of blood vessel；Far from injection site operation without opening remaining needle
Application.
In needle stand as received basis liquid capsule cap after steel needle core is removed in conjunction with the recessed female Luer of needle stand tail portion, by as received basis liquid
Capsule feeding needle stand is intracavitary and seals, and the liquid capsule for avoiding the self-styled remaining needle of monoblock type liquid capsule is easy the problem of being scratched by steel needle core,
The components such as silica gel steel needle core batching pig are omitted simultaneously, are conducive to carry out industrialized production.
[beneficial effect]
The beneficial effects of the utility model are as follows:
The operation of the utility model positive pressure liquid capsule self-sealing remaining needle is extremely simple, and as received basis liquid capsule is closed infusion channel and mentioned
For continuous positive pressure, tube sealing, it is anti-backflow it is infallible with antithrombotic effect；It is very easy to grasp when puncturing merging remaining needle, shield
Operation can be completed with tube-sealing solution, a singlehanded movement is prepared without aspiration medicinal liquid when reason operation, without consumption disposably injection
Device, flusher save care operation step, improve nursing efficiency and quality.
Needle stand tail end is leaned in the utility model positive pressure liquid capsule self-sealing remaining needle as received basis liquid capsule position, and space is big in needle stand,
Flow velocity is not influenced, various infusion flow demands are met.
The utility model positive pressure liquid capsule self-sealing remaining needle avoids spring without using metal spring and other sealing materials
The various drawbacks of valve, flap valve, piston, silica gel batching pig and lubricant；The utility model relates to method and design avoid
Welding and the cumbersome technique being glued；The remaining needle body manufacturing method of the utility model completely can be with automated production, hardly
It needs to change existing production line, is appropriate for industrial automation production.
[Detailed description of the invention]
Fig. 1 is the utility model positive pressure liquid capsule self-sealing containing needle structure schematic diagram；
In figure:
Fig. 1-1 is component IB；Fig. 1-2 is main element A；Fig. 1-3 is component IIC；
Fig. 2 is main element A and component IB combining structure schematic diagram；
Fig. 3 is that main element A and component IIC as received basis liquid capsule 6 do not fill combining structure schematic diagram；
Fig. 4 is main element A and component IIC combining structure schematic diagram when as received basis liquid capsule 6 fills；
In figure:
1- is with recessed female Luer needle stand, 2- inlying catheter, 3- infusion channel, 4- steel needle core, 5- with convex female Luer steel needle
Core handle, 6- as received basis liquid capsule, the convex female Luer as received basis liquid capsule cap of 7-, liquid capsule communicating pipe, the outer liquid capsule of 9- inside and outside 8-.
[specific embodiment]
It will be better understood that the utility model by following embodiments.
Embodiment 1: the intravascular remaining needle of the utility model positive pressure liquid capsule self-sealing
The embodiment of the embodiment is as follows:
The intravascular remaining needle of the utility model positive pressure liquid capsule self-sealing is mainly by main element A, component IB and component IIC
Composition.Main element A with recessed female Luer needle stand 1, inlying catheter 2 and infusion channel 3 by forming；With recessed female Luer needle stand
1 end is inlying catheter 2, and inlying catheter 2 constitutes infusion channel 3 with recessed 1 inner cavity of female Luer needle stand；
Component IB is formed by connecting by steel needle core 4 with convex female Luer steel needle core handle 5；
Component IIC is by as received basis liquid capsule 6, convex female Luer as received basis liquid capsule cap 7, inside and outside liquid capsule communicating pipe 8 and outer liquid capsule 9
It is connected in sequence；Convex female Luer as received basis liquid capsule cap 7 is in the junction of as received basis liquid capsule 6 Yu inside and outside liquid capsule communicating pipe 8；
In use, the steel needle core 4 of component IB is placed in inlying catheter 2, the convex Shandong with convex female Luer steel needle core handle 5 is allowed
Your connector is fitted close with the recessed female Luer with recessed female Luer needle stand 1, and then steel needle core 4 pierces through after skin and vascular wall just
Inlying catheter 2 can be guided to be placed in intravascular；After removing steel needle core 4, component IIC is inserted into in recessed female Luer needle stand 1, is allowed
Convex female Luer as received basis liquid capsule cap 7 is fitted close with the recessed female Luer with recessed female Luer needle stand 1；
When infusion, as received basis liquid capsule 6 is not filled, enters blood vessel by infusion channel 3 to transfusion fluid；When stopping is infused
When, external liquid capsule 9 is pressurizeed, and is filled as received basis liquid in as received basis liquid capsule 6 and is kept its pressure, prevents blood reflux to infusion
In channel 3.
It is described with recessed female Luer needle stand 1, inlying catheter 2, with convex female Luer steel needle core handle 5, as received basis liquid capsule 6,
Inside and outside liquid capsule communicating pipe 8 is made of polycarbonate with outer liquid capsule 9.
As received basis liquid capsule 6 has the full rear shape of elasticity and is identical with recessed 1 cavity shape of female Luer needle stand.
Outer 9 shape of liquid capsule is cylindrical.
Patients a large amount of for public ward carry out retention needle infusion and tube sealing, usually using physiological saline tube sealing, " guide "
It is required that every 4 hours are repeated once " tube sealing ", remaining needle tenability time 3 days.The present embodiment positive pressure liquid capsule self-sealing remaining needle energy
Enough persistently using 5 days without complication such as any injury of vein, leakage, phlebitis, phlebothrombosises, a tube sealing operation can be maintained
It was infused by second day, patient comfort.Disposable syringe, flusher are not consumed, care operation step is saved, improves nursing effect
Rate and quality.
Embodiment 2: the intravascular remaining needle of the utility model positive pressure liquid capsule self-sealing
The embodiment of the embodiment is identical as embodiment 1, and only as received basis liquid capsule 6 is high resiliency polyethylene U-tube,
This design optimization manufacturing process of as received basis liquid capsule.For suffering from the patient of " intracranial hypertension, hypertension, heart failure, nephrosis "
Carry out retention needle infusion and tube sealing, usually require that limitation input salt water, but conventional washing pipe and tube sealing can sodium salt outside the amount of imports and
Liquid enters body.Patient can be allowed to avoid inputting excessive Yan Heshui using the present embodiment positive pressure liquid capsule self-sealing remaining needle.
This operation is extremely simple, and tube sealing is completed under the conditions of as received basis liquid is totally-enclosed, and no any liquid and drug enter blood circulation,
No any pollutant enters, persistently using 6 days without the complication such as any injury of vein, leakage, phlebitis, phlebothrombosis, patient
Comfortably.Disposable syringe, flusher are not consumed, care operation step is saved, improves nursing efficiency and quality.
Claims (4)
1. a kind of intravascular remaining needle of positive pressure liquid capsule self-sealing, it is mainly by main element (A), component I (B) and component II (C)
Composition, it is characterised in that main element (A) with recessed female Luer needle stand (1), inlying catheter (2) and infusion channel (3) by forming；
Inlying catheter (2) in the end with recessed female Luer needle stand (1), inlying catheter (2) with recessed female Luer needle stand (1) inner cavity
It constitutes infusion channel (3)；
Component I (B) is formed by connecting by steel needle core (4) with convex female Luer steel needle core handle (5)；
Component II (C) is by as received basis liquid capsule (6), convex female Luer as received basis liquid capsule cap (7), inside and outside liquid capsule communicating pipe (8) and outer
Liquid capsule (9) is connected in sequence；Convex female Luer as received basis liquid capsule cap (7) is in as received basis liquid capsule (6) and is connected to inside and outside liquid capsule
Manage the junction of (8)
In use, the steel needle core (4) of component I (B) is placed in inlying catheter (2), allow with convex female Luer steel needle core handle (5)
Convex female Luer is fitted close with the recessed female Luer with recessed female Luer needle stand (1), and then steel needle core (4) pierces through skin and blood
Inlying catheter (2) merging can be guided intravascular after tube wall；After removing steel needle core (4), component II (C) is inserted into recessed Rule
In connector needle stand (1), make convex female Luer as received basis liquid capsule cap (7) and the recessed female Luer with recessed female Luer needle stand (1) tight
Close fit；
When infusion, as received basis liquid capsule (6) is not filled, enters blood vessel by infusion channel (3) to transfusion fluid；When stopping is infused
When, external liquid capsule (9) pressurization fills as received basis liquid in as received basis liquid capsule (6) and keeps its pressure, blood reflux is prevented to arrive
In infusion channel (3).
2. the intravascular remaining needle of positive pressure liquid capsule self-sealing according to claim 1, it is characterised in that described with recessed Rule
Connector needle stand (1), inlying catheter (2), with convex female Luer steel needle core handle (5), as received basis liquid capsule (6), inside and outside liquid capsule communicating pipe
It (8) is all made of polycarbonate or polyethylene with outer liquid capsule (9).
3. the intravascular remaining needle of positive pressure liquid capsule self-sealing according to claim 1, it is characterised in that as received basis liquid capsule (6) is filled
Shape after being full of be identical or high resiliency U-tube with recessed female Luer needle stand (1) cavity shape.
4. the intravascular remaining needle of positive pressure liquid capsule self-sealing according to claim 1, it is characterised in that outer liquid capsule (9) shape is
Cylinder, cuboid, ellipse or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721749527.XU CN209137595U (en) | 2017-12-15 | 2017-12-15 | A kind of intravascular remaining needle of positive pressure liquid capsule self-sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721749527.XU CN209137595U (en) | 2017-12-15 | 2017-12-15 | A kind of intravascular remaining needle of positive pressure liquid capsule self-sealing |
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| Publication Number | Publication Date |
|---|---|
| CN209137595U true CN209137595U (en) | 2019-07-23 |
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ID=67264422
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721749527.XU Active CN209137595U (en) | 2017-12-15 | 2017-12-15 | A kind of intravascular remaining needle of positive pressure liquid capsule self-sealing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890595A (en) * | 2017-12-15 | 2018-04-10 | 西藏多欣医疗器械制造有限公司 | A kind of intravascular remaining needle of malleation liquid capsule self-sealing |
-
2017
- 2017-12-15 CN CN201721749527.XU patent/CN209137595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890595A (en) * | 2017-12-15 | 2018-04-10 | 西藏多欣医疗器械制造有限公司 | A kind of intravascular remaining needle of malleation liquid capsule self-sealing |
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