CN204121524U - anti-reflux venous indwelling needle - Google Patents
anti-reflux venous indwelling needle Download PDFInfo
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- CN204121524U CN204121524U CN201420306791.6U CN201420306791U CN204121524U CN 204121524 U CN204121524 U CN 204121524U CN 201420306791 U CN201420306791 U CN 201420306791U CN 204121524 U CN204121524 U CN 204121524U
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- venous indwelling
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Abstract
This utility model provides novel Anti-reflux venous indwelling needle, comprising: interior pin, is made up of hard material, and has blood back groove, and its afterbody is connected with Paracentesis needle holder; Outer needle tubing, it is made up of soft material, is attached to interior pin and also can be separated with interior pin outward; Extend flexible pipe, its one end connects fluid injection adapter assembly; Tongs, is positioned at and extends flexible pipe outside, for controlling the break-make extending flexible pipe; Outer needle stand, its first end comprises through hole; Outer needle stand second end connects the other end extending flexible pipe; Outer needle stand the 3rd end comprises sealing, comprises isolation molectron in sealing; Wherein, isolate molectron and comprise at least two assemblies.Novel Anti-reflux venous indwelling needle of the present utility model, owing to using the batching pig adopting silica gel material to manufacture, avoids the risk cracking outer pin back seat; Interior pin can thrust vein by batching pig after extracting again, realizes except intravenous drip, also facilitates the multiple operations such as blood drawing, pressure measurement.
Description
Technical field
This utility model relates to a kind of medical remaining needle, is specifically related to a kind of Anti-reflux venous indwelling needle.
Background technology
In clinical middle application widely, but each intravenous drip all needs skin penetrating, for needing the long-term patient instiled, both having added the misery of patient, and having added the workload of nurse, and also can cause larger infection risk in intravenous drip.
For addressing these problems, at present clinically for needing the long-term patient, critical patient etc. instiled to use remaining needle, can repeatedly instil after puncture once more.As shown in Figure 1, it roughly comprises interior pin 1 for existing venous detaining needle or Anti-reflux venous indwelling needle structure, outer needle tubing 2, sheath 3, the outer needle stand 4 of Y shape, Paracentesis needle holder 6, batching pig 7, tongs 9, infusion tee pipe 10, wherein Paracentesis needle holder 6 is fixed on the afterbody of interior pin 1.Outer needle stand 4 first end has through hole, and for holding interior pin 1 and outer needle tubing 2, outer needle tubing 2 can be fixedly connected with through hole; Second end connects prolongation flexible pipe 8; 3rd end comprises sealing 5.Batching pig 7 is positioned at sealing 5.Interior pin 1 is made up of hard material (such as metal), and has blood back groove.Outer needle tubing 2 is made for flexible material, and it is attached on interior pin 1, but can be separated with interior pin 1.
First sheath 3 groups is gone during use, hand-held Paracentesis needle holder 6, interior pin 1 is punctured into patient skin and brings outer needle tubing 2 into vein together, and then hand-held Paracentesis needle holder 6 extracts interior pin 1 backward, and outer needle tubing 2 is retained in vein.Batching pig 7 automatic rebounding after interior pin 1 is extracted seals up the pin hole that interior pin 1 stays, and prevents venous return, also prevent outside antibacterial, virus etc. simultaneously and enter vein.And outer needle tubing 2 forms with extension tube 8 path of infusing, when needs of patients transfusion (intravenous drip), only need tee T 10 to connect to hang liquid bottle, without the need to repeated puncture.
As can be seen from aforesaid operations process, the Main Function of batching pig 7 is after vein extracted by interior pin 1, seals up pin hole, prevents venous return, prevent extraneous pathogenic bacteria, virus etc. from entering vein simultaneously.The performance that its automatic rebounding after interior pin 1 is extracted seals up pin hole is very crucial.Existing batching pig 7 material is isoamyl glue.Playing resilience and liquid-leakage preventing object for making isoamyl glue, must increase its hardness, usually reach (Shao Shi 70-80 degree), making it to be compressed in increases elasticity in sealing 5 and the object that plays liquid-leakage preventing.Because hardness is large, when making, cannot be pre-installed in sealing 5, indentation sealing portion 5 after can only being punched in advance or cut into slices, then be bonded with glue.This operating process itself can increase dangerous factor, because outer pin back seat many uses PC resin manufacture, for the compression of batching pig hardness, sealing 5 can be caused to ftracture.
Another unfavorable factor using high rigidity batching pig 7, once interior pin 1 is pulled out, just again cannot turn back to vein.This causes the function of existing remaining needle very single: only can be used for intravenous drip.After patient employs remaining needle, when encountering the operation such as blood drawing, the outer needle tubing 2 in vein cannot be utilized, still need to do in addition venipuncture, add the misery of patient.
Utility model content
The various shortcoming of existing remaining needle in view of the above, the purpose of this utility model is to provide a kind of novel Anti-reflux venous indwelling needle, and for solving, the outer pin back seat of existing remaining needle easily ftractures, function singleness, extension tube cracky, easily cause the problems such as skin allergy.
For achieving the above object and other relevant objects, the Anti-reflux venous indwelling needle that this utility model provides novel this utility model to provide novel, it is characterized in that, comprising: interior pin, be made up of hard material, and have blood back groove, its afterbody is connected with Paracentesis needle holder; Outer needle tubing, it is made up of soft material, is attached to interior pin and also can be separated with interior pin outward; Extend flexible pipe, its one end connects fluid injection adapter assembly; Tongs, is positioned at and extends flexible pipe outside, for controlling the break-make extending flexible pipe; Outer needle stand, its first end comprises through hole; Outer needle stand second end connects the other end extending flexible pipe; Outer needle stand the 3rd end comprises sealing, comprises isolation molectron in sealing; Wherein, isolate molectron and comprise at least two assemblies.
Preferably, in above-mentioned Anti-reflux venous indwelling needle, isolation molectron comprises three assemblies; More preferably, isolate molectron to be made up of silica gel; More preferably, in three assemblies, at least one assembly is for comprising cavity.
As mentioned above, novel Anti-reflux venous indwelling needle of the present utility model, owing to using the batching pig adopting silica gel material to manufacture, avoids the risk cracking outer pin back seat; Interior pin can thrust vein by batching pig after extracting again, realizes except intravenous drip, also facilitates the multiple operations such as blood drawing, pressure measurement; And according to preferred embodiment, owing to adopting clapper, abandon prolongation flexible pipe, avoided by the variety of problems extending flexible pipe generation.
Those skilled in the art, by by with the explanation of lower part and accompanying drawing, understand the above-mentioned advantage of thought of the present utility model and generation thereof.
Accompanying drawing explanation
Figure 1 shows that the structure chart of existing remaining needle;
Figure 2 shows that the structure chart of the first embodiment of this utility model Anti-reflux venous indwelling needle;
Figure 3 shows that the zoomed-in view of isolation molectron;
Figure 4 shows that barrier assembly cavities open sectional view;
Figure 5 shows that the alternate configurations figure of the assembly 71,72 or 73 in the molectron of isolation shown in Fig. 3;
Figure 6 shows that the another alternate configurations figure of the assembly 71,72 or 73 in the molectron of isolation shown in Fig. 3;
Figure 7 shows that the structure chart of the second embodiment of this utility model Anti-reflux venous indwelling needle;
Figure 8 shows that a kind of check valve schematic diagram that this utility model Anti-reflux venous indwelling needle is used.
Detailed description of the invention
Below by way of specific instantiation, embodiment of the present utility model is described, but following embodiment only for the purpose of illustration, do not form restriction of the present utility model.Those skilled in the art can make the multiple modification or the change that do not deviate from thought of the present utility model to following embodiment.
Diagram corresponding to following examples is only aid illustration basic conception of the present utility model, then only the assembly relevant with this utility model is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
First aspect of the present utility model, has abandoned the batching pig of existing integration, and adopts isolation molectron.And isolate molectron and adopt the material that hardness is less, such as medical silica-gel, or the isoamyl glue that hardness is less (such as shore about 30 degree), replace existing isoamyl glue, can (such as take a blood sample) pierce through isolation molectron once again with blood taking needle and enter vein when needed like this, thus avoid repeated puncture.
But owing to usually easily producing " fatigue " in the materials'use that hardness is less, make material rebounds less able, thus the pin hole of interior pin 1 cannot be sealed completely, cause leakage.So isolation molectron of the present utility model comprises at least two barrier assemblies further.Compared to the batching pig of one, the benefit using multiple barrier assembly to be combined into isolation molectron is: if batching pig all-in-one-piece, then rely on the resilience of material to seal the pin hole stayed after interior pin 1 is extracted completely.Many parts are adopted to be combined into isolation molectron, " fatigue " degree in use produced due to each several part can be variant, and along with interior pin 1 insertion, extract, the deformation of each several part is different, and each several part can produce small dislocation, the pin hole mutual dislocation of such each several part, adds that the deformation of each several part makes up mutually, thus reaches the object preventing leakage.
embodiment 1
First consult Fig. 2 below and introduce the first embodiment of the present utility model.For simplified illustration, part identical or corresponding with remaining needle function existing in Fig. 1 or structure in Fig. 2 employs identical labelling.
According to thought of the present utility model, in the preferred implementation shown in Fig. 2, isolation molectron 7 have employed the less silica gel of hardness, and further comprises assembly 71,72 and 73 3 part (zoomed-in view see Fig. 3).More preferably, assembly 71,72 and 73 in this example is all made into bowl-shape---there is a cavity, and arranged by according to the mode shown in Fig. 2 (and Fig. 3): " the rim of a bowl " (i.e. cavities open end) of assembly 71 is towards the afterbody of interior pin 1, and " at the bottom of bowl " (i.e. cavity closing end) is towards the needle point direction of interior pin; The cavities open end of assembly 72 is relative with the cavities open end of assembly 71; The cavity closing end of the cavities open end orientating component 72 of assembly 73.
This profile design and the arrangement mode of assembly 71,72 and 73 have extra benefit: first, " fatigue " degree in use produced with three assemblies differs larger, the deformation of the generation when interior pin 1 inserts or extracts and dislocation are more obvious, thus seal the pin hole of interior pin 1 better; The second, when interior pin 1 inserts (for from top to bottom in Fig. 2), the cavity closing section of assembly 72,73 is subject to power left, causes the cavities open part of assembly 72,73 to be expanded, thus strengthens the sealing effectiveness between assembly 72,73 and sealing 5; And when interior pin 1 is extracted (for from the bottom to top in Fig. 2), the cavity closing end due to assembly 71 is subject to power to the right, causes the cavities open end of assembly 71 to be expanded, increase the sealing effectiveness between assembly 71 and sealing 5.Like this, in the insertion, withdrawal process of interior pin 1, all enter the sealing effectiveness that can strengthen between isolation molectron 7 and sealing 5.
More preferably, can on the cavity wall of assembly 71,72 and 73 attached ribs 74, as shown in Figure 4.Fig. 4 is the cavities open place sectional view of assembly 71, which show three equally distributed ribs 74.Like this, when interior pin 1 thrusts isolation molectron, the extruding force that the side of body 74 can help absorbent assembly 71,72 and 73 to be subject to is supported; And when interior pin 1 is extracted, ribs 74 strengthens restoring force, interior pin 1 can be made up and to puncture the pin hole caused, strengthen liquid-leakage preventing effect.
Be understandable that, the distribution of the quantity of the shape of said modules 71,72 and 73, arrangement mode, ribs does not form restriction of the present utility model, and those skilled in the art according to actual needs, can adopt other embodiment, such as, the quantity of assembly can be more or less; Any one of assembly can adopt cylindrical, can have difform cavity, and as seen in figs. 5-6, the quantity of cavity is also not limited to one; On members, ribs can be installed, also all ribs can be installed by all component; Assembly 71,72 with 73 opening can be relative, opposing etc.
embodiment 2
Consult Fig. 7 below and introduce the second embodiment of the present utility model.In the embodiment of Fig. 7, isolation molectron 7 is identical with embodiment 1, therefore repeats no more.In the embodiment 2 of Fig. 7, outer needle stand 4 comprises elasticity needle stand 41 and tee T 42, and is provided with check valve 12 between elasticity needle stand 41 and tee T 42.Check valve 12 only can along direction conducting from top to bottom in figure, and like this, on the one hand after interior pin 1 enters vein together with outer needle tubing 2, vein blood back is stopped in blood back cavity (check valve opening part) 14, prevents excessive blood back; Operator can observe vein blood back situation by blood back cavity 14 thus judge whether interior pin 1 and outer needle tubing 2 enter vein on the other hand, and need not must judge whether interior pin 1 and outer needle tubing 2 enter vein by the blood back situation of observing in extension tube 8 as during the existing remaining needle of use.One of such benefit can reduce because flexible pipe breakage causes the probability of losing blood.
Owing to adopting check valve 12, embodiment 2 is just without the need to extension tube 8, as shown in Figure 7, the side of tee T 42 directly connects chemicals dosing plant, avoiding problems the variety of problems brought because of extension tube 8: such as, existing extension tube 8 mostly is polrvinyl chloride (being called for short PVC) and makes, itself is more soft, easily damaged, once damaged, patient except the risk having infection, the danger of losing blood in addition.And extension tube 8 total length reaches 12 centimeters usually, makes medical personnel in operation for being fixed, also need extra multiplex adhesive plaster, this easily causes skin allergy.
In addition, in order to coordinate interior pin 1 repeatedly to insert the operation of vein, in present embodiment, on elasticity needle stand 41, one-way valve opens device 13 is also provided with.When interior pin 1 repeats to thrust vein by needs, only need extruding one-way valve opens device 13, then check valve 12 can be opened completely, and in convenient, pin 1 thrusts and prevent interior pin 1 from puncturing check valve 12.Check valve 12 and one-way valve opens device 13 can need the time used etc. practical situation according to the size of interior pin 1, remaining needle and adopt multiple different structure.Hereinafter the detailed introduction of wherein a kind of structure will be provided.
It should be noted that, in the present embodiment, outer needle stand 4 have employed the split design of elasticity needle stand 41 and tee T 42, but this is not necessary.Also outer needle stand can be made the Y-shaped structure of one as in Example 1 in practice, and check valve 12 is installed on the front end of Y-shaped structure.
In present embodiment, check valve 12 structure as shown in Figure 8.The check valve 12 of this example is also made up of medical silica-gel material, and valve port position is rectangular cross-sectional, and two rectangular long limits become valve port to being combined into linear, and another side is that effect is closed in the camber line formation increasing of indent slightly.It comprises cylinder 123, valve nozzle 125, presser feet 128, and presser feet 128 is mounted in the bottom of cylinder 123, playing sealing ring, making liquid can not seepage when loading remaining needle.Valve nozzle 125 is formed by the tapered region of two symmetries in the upper end of cylinder 123.Cylinder 123 is cylindrical in the present embodiment, and the height of cylinder 123 and the height of valve nozzle 125 are at same plane.Be separately installed with stressed circle 121 and stressed circle 127 at cylinder 123 and the both sides intersection of valve nozzle 125, both sizes are identical and be determine by the size of cylinder 123.Because cylinder 123 is columniform, therefore the inside and outside arch power utilizing cylindrical distortion to produce controls the closed of valve nozzle 125 by stressed circle 121,127, stressed circle 121,127 can increase resilience force, make up anti-blood back one-way valve because of material aging, and plastic deformation etc. inevitably factor cause seepage.For increasing resilience force further, mounting and adjusting rib 122 can be distinguished in the both sides of valve nozzle 125, the adjustment rib size of both sides is identical and according to injection draw point specification and fixed, be used for controlling the closed of valve nozzle 125, if draw point specification is that more than 24G just can not mounting and adjusting rib 122; What check valve 12 balanced by two columnar brackets 76 of tee T is supported in the middle of elasticity needle stand 41, two V-type positioning guide columns 44 of tee T are corresponding with the V-type positioning and guiding groove 124 of check valve to be assembled, all load four of elasticity needle stand 41 rear ends by four of elasticity needle stand 41 rear end equally distributed guiding groove (not shown) and lead to square hole (not shown), tee T 42 and both elasticity needle stands 41 have one section of close-connected linkage section, and also there is certain compression at thickness direction, therefore good sealing function can be played.
Above-mentioned two symmetrical parallel columnar brackets 76 form first and increase and close structure on tee T 42 to be connected position with check valve 12, corresponding site inside the cylindrical portion 123 that two columnar brackets 76 stretch into check valve, preferably, distance between two columnar brackets 76 is slightly larger than the internal diameter of cylindrical portion 123, this corresponding site inside cylindrical portion 123 can be stretched, the two opposite side intersections that can be stretched are just valve port 125 places, thus drive two long limits of valve port 125 to expand outwardly, make valve port 125 very tightly closed, add the closed strength of the valve port 125 that linearly cracks.
Elasticity needle stand 41 is also provided with the second increasing and closes structure, two boss are symmetrically arranged with at elasticity needle stand 41 inside middle portion, the stressed circle 121,127 in cylindrical portion outer wall both sides that two boss lay respectively at check valve 12, two boss are applied equal pressure described cylindrical portion outer wall both sides stressed circle 121,127 corresponding site, and by the adjustment rib 122 of check valve by its pressure conduction on valve port 125, make valve port 125 very tightly closed, add the closed strength of the valve port 125 that linearly cracks.
Check valve 12 self is also provided with the 3rd increasing and closes structure, see Fig. 8, namely two inclined-planes 126 outside described valve nozzle 125, and be greater than the angle near inclined-plane, valve nozzle 125 front end near the angle on the inclined-plane of cylindrical portion in two inclined-planes 126, slightly larger than the angle of inner chamber in the angle close to valve nozzle portion 125 front end outer side, Thickness Ratio on 126 sections, the inclined-plane near cylindrical portion is large near the thickness of valve nozzle portion 125 front end bevel phase, and this double inclined surface structure can be strengthened valve port and close strength.
In addition, Fig. 7 Elastic needle stand 41 is connected as a single entity by buckle structure by the sheath 3 of front end and the tee T 42 of rear end.An annular boss is respectively had, to operate before and after sheath 3 is outside; Middle part has two for technique aperture 32 (not shown) of cleaning method; Rear inside has back-off 31 to be connected to elasticity needle stand 41 front end, and the cone shape of its cone shape structure and elasticity needle stand 41 front end is fitted completely, makes itself and elasticity needle stand 41 completely in same level, is not subject to any damage with pin in the protection of safety and outer pin; Outer needle tubing 2 is soft pin, it can be retained in human body for a long time, the rear portion of outer needle tubing 2 is connected with the small end interference of stainless fixing rivet 45, fixing rivet 45 funnel, its overall interference is embedded in the front end of elasticity needle stand 41, and block fixing rivet 45 by the back-off 21 of elasticity needle stand 41, make it be completely fixed herein; Because elasticity needle stand 41 is elastomeric material, in the middle part of it, there is the one-way valve opens device 13 of staff finger-like, can be used for the opening and closing controlling check valve 12; Elasticity needle stand 41 rear end is connected with tee T 42 front end, loads four of elasticity needle stand 41 rear ends lead to square hole by four of elasticity needle stand 41 rear end equally distributed guiding grooves, makes elasticity needle stand 41 and tee T 42 being connected in one tightly; Tee T 42 tail end has sealing 5, side connects chemicals dosing plant, sealing 5 inside of its tail end is isolation molectron 7, and leading to square hole by the end cap 16 of sealing 5 rear end by two of tee T rear end symmetrical guiding grooves two of loading tee T rear end, sealing 5 is cylindric cavity body structure; The chemicals dosing plant of side is equipped with Bacteria-prevention cap 15, and Bacteria-prevention cap 15 is national standard, and it coordinates the luer taper being GB, exchanges use completely.
Through experiment test, by the reverse flow resistant indwelling needle that above-mentioned two kinds of preferred implementations are made, be toast after 7 days under the environment of 60 degrees Celsius in temperature, pressure differential sealing 5 being applied to 35PSI is tested, and the sealing effectiveness of isolation molectron 7 still can reach health ministry and the seal standard required by U.S. FDA tissue; And during interior pin 1 repeated localised puncture 30 times, isolation molectron 7 does not still produce the phenomenon of leakage, therefore this utility model perfection solves the variety of problems that existing remaining needle exists, thus has very high practical value.
The foregoing is only preferred implementation of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.Such as: for the Material selec-tion of isolation molectron 7, the material that other hardness such as the isoamyl glue of such as medical silica-gel or shore about 30 degree are less can be used; The component count of isolation included by molectron 7 also can adjust as required, and need not be confined to 3 assemblies in present embodiment; The shape of each several part also can make cylinder, nested circular cone etc.For the occasion (such as pin for baby) that interior pin 1 size is less, check valve 12 also can adopt the structure of simplification, such as, do not need to adjust rib; For the occasion that size is comparatively large or vein pressure is higher of interior pin 1, quantity and the intensity of adjustment rib suitably can be increased.For interior pin 1, the hard material that other is suitable for also can be adopted.
Also namely, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (12)
1. Anti-reflux venous indwelling needle, is characterized in that, comprising:
Interior pin, is made up of hard material, and has blood back groove, and its afterbody is connected with Paracentesis needle holder;
Outer needle tubing, it is made up of soft material, is attached to described interior pin and also can be separated with described interior pin outward;
Extend flexible pipe, its one end connects fluid injection adapter assembly;
Tongs, is positioned at described prolongation flexible pipe outside, for controlling the break-make of described prolongation flexible pipe;
Outer needle stand, its first end comprises through hole; Described outer needle stand second end connects the other end of described prolongation flexible pipe; Described outer needle stand the 3rd end comprises sealing, comprises isolation molectron in described sealing;
Wherein, described isolation molectron comprises at least two assemblies.
2. Anti-reflux venous indwelling needle according to claim 1, is characterized in that, in described at least two assemblies, at least one assembly comprises cavity.
3. Anti-reflux venous indwelling needle according to claim 2, it is characterized in that, described at least two assemblies comprise the first assembly and the second assembly, described first assembly and the second assembly include cavity, and the cavities open end of described first assembly is towards the afterbody of described interior pin, the cavities open end of described second assembly and the cavities open end of described first assembly are relatively or contrarily.
4. Anti-reflux venous indwelling needle according to claim 3, is characterized in that, described at least two assemblies also comprise the 3rd assembly, and described 3rd assembly comprises cavity, and the cavities open end of described 3rd assembly is towards the head of described interior pin.
5. Anti-reflux venous indwelling needle according to claim 2, is characterized in that, the wall portion of described cavity is provided with some ribs.
6. the Anti-reflux venous indwelling needle described in claim 1-5 any one, is characterized in that, one or more assembly in described isolation molectron is made up of silica gel.
7. an Anti-reflux venous indwelling needle, is characterized in that, comprising:
Interior pin, is made up of hard material, and has blood back groove, and its afterbody is connected with Paracentesis needle holder;
Outer needle tubing, it is made up of soft material, is attached to described interior pin and also can be separated with described interior pin outward;
Outer needle stand, its first end comprises through hole and chamber, comprises check valve in described chamber; Second end of described outer needle stand connects chemicals dosing plant; 3rd end of described outer needle stand comprises sealing, comprises isolation molectron in described sealing; Wherein, described isolation molectron comprises at least two assemblies.
8. Anti-reflux venous indwelling needle according to claim 7, is characterized in that, in described at least two assemblies, at least one assembly comprises cavity.
9. Anti-reflux venous indwelling needle according to claim 8, it is characterized in that, described at least two assemblies comprise the first assembly and the second assembly, described first assembly and the second assembly comprise cavity, and the cavities open end of described first assembly is towards the afterbody of described interior pin, the cavities open end of described second assembly and the cavities open end of described first assembly are relatively or contrarily.
10. Anti-reflux venous indwelling needle according to claim 9, is characterized in that, described at least two assemblies also comprise the 3rd assembly, and described 3rd assembly comprises cavity, and the cavities open end of described 3rd assembly is towards the head of described interior pin.
11. Anti-reflux venous indwelling needles according to claim 8, is characterized in that, the wall portion of described cavity is provided with some ribs.
Anti-reflux venous indwelling needle described in 12. claim 7-11 any one, is characterized in that, one or more assembly in described isolation molectron is made up of silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306791.6U CN204121524U (en) | 2014-06-10 | 2014-06-10 | anti-reflux venous indwelling needle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306791.6U CN204121524U (en) | 2014-06-10 | 2014-06-10 | anti-reflux venous indwelling needle |
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| CN204121524U true CN204121524U (en) | 2015-01-28 |
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| CN201420306791.6U Expired - Fee Related CN204121524U (en) | 2014-06-10 | 2014-06-10 | anti-reflux venous indwelling needle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162202A (en) * | 2014-06-10 | 2014-11-26 | 丁培琪 | Reverse-flowing-prevention venous indwelling needle |
| CN104721913A (en) * | 2015-04-10 | 2015-06-24 | 邓杜娟 | Self-sealing type venous indwelling needle and production method thereof |
| CN104826196A (en) * | 2015-05-29 | 2015-08-12 | 邓杜娟 | Self-sealing type venous indwelling needle with liquid bag in needle holder |
| CN105833389A (en) * | 2016-05-20 | 2016-08-10 | 苏州林华医疗器械股份有限公司 | Pressure-resistance low-resistance insulated plug and venous indwelling needle |
| CN106510729A (en) * | 2016-10-31 | 2017-03-22 | 中国人民解放军第三军医大学第附属医院 | Repeatedly blood-sampling indwelling needle and application method thereof |
| TWI605847B (en) * | 2016-04-29 | 2017-11-21 | 黃翔 | Needle structure |
| CN107961417A (en) * | 2017-12-28 | 2018-04-27 | 无锡顶点医疗器械有限公司 | A kind of insulin pump extrusion infusing pipeline structure |
| CN108403128A (en) * | 2018-03-24 | 2018-08-17 | 曹春荣 | A kind of venous samples acquisition valve for preventing reverse-flow device and blood lancet device |
| CN109276779A (en) * | 2018-09-17 | 2019-01-29 | 南京市第医院 | A kind of multi-functional remaining needle |
| CN110123282A (en) * | 2019-06-14 | 2019-08-16 | 河北省中医院 | A kind of arterial puncture needle |
| CN114796694A (en) * | 2015-10-28 | 2022-07-29 | 康尔福盛303公司 | Closed IV access device with Y-port needleless connector |
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2014
- 2014-06-10 CN CN201420306791.6U patent/CN204121524U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162202A (en) * | 2014-06-10 | 2014-11-26 | 丁培琪 | Reverse-flowing-prevention venous indwelling needle |
| CN104721913A (en) * | 2015-04-10 | 2015-06-24 | 邓杜娟 | Self-sealing type venous indwelling needle and production method thereof |
| CN104826196A (en) * | 2015-05-29 | 2015-08-12 | 邓杜娟 | Self-sealing type venous indwelling needle with liquid bag in needle holder |
| CN114796694A (en) * | 2015-10-28 | 2022-07-29 | 康尔福盛303公司 | Closed IV access device with Y-port needleless connector |
| TWI605847B (en) * | 2016-04-29 | 2017-11-21 | 黃翔 | Needle structure |
| CN105833389A (en) * | 2016-05-20 | 2016-08-10 | 苏州林华医疗器械股份有限公司 | Pressure-resistance low-resistance insulated plug and venous indwelling needle |
| CN106510729A (en) * | 2016-10-31 | 2017-03-22 | 中国人民解放军第三军医大学第附属医院 | Repeatedly blood-sampling indwelling needle and application method thereof |
| CN106510729B (en) * | 2016-10-31 | 2019-05-17 | 中国人民解放军第三军医大学第一附属医院 | Repeatedly blood sampling remaining needle |
| CN107961417A (en) * | 2017-12-28 | 2018-04-27 | 无锡顶点医疗器械有限公司 | A kind of insulin pump extrusion infusing pipeline structure |
| CN108403128A (en) * | 2018-03-24 | 2018-08-17 | 曹春荣 | A kind of venous samples acquisition valve for preventing reverse-flow device and blood lancet device |
| CN109276779A (en) * | 2018-09-17 | 2019-01-29 | 南京市第医院 | A kind of multi-functional remaining needle |
| CN110123282A (en) * | 2019-06-14 | 2019-08-16 | 河北省中医院 | A kind of arterial puncture needle |
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