CN204233531U - A kind of Novel intravenous catheter syringe needle - Google Patents
A kind of Novel intravenous catheter syringe needle Download PDFInfo
- Publication number
- CN204233531U CN204233531U CN201420396830.6U CN201420396830U CN204233531U CN 204233531 U CN204233531 U CN 204233531U CN 201420396830 U CN201420396830 U CN 201420396830U CN 204233531 U CN204233531 U CN 204233531U
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- needle
- side opening
- main aperture
- needle tubing
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Abstract
This utility model is a kind of Novel intravenous catheter syringe needle, belongs to technical field of medical instruments, particularly relates to the venous detaining needle through Peripheral vein infusion.The utility model discloses a kind of Novel intravenous catheter needle Head, comprise nook closing member, needle tubing, needle tubing has main aperture one, side opening one.Side opening is positioned at the needle tubing place corresponding to side, nook closing member inclined-plane, and be no less than 3mm apart from main aperture place, side opening area is no more than main aperture area.Not only when needle tubing main aperture press close to blood vessel wall or press close to infuse obstructed caused by venous valve, by side opening transfusion, thus the unobstructed transfusion of effective guarantee, and when main aperture is unobstructed, main aperture and side opening are infused simultaneously, reduce liquid stream and to engage in this profession local resistance, improve transfusion speed.Under equal conditions, larger flow velocity can be reached than other venous detaining needles of equal model, thus the remaining needle of more large size need not be selected to meet flow rates demand certain clinically, reduce the incidence rate of related complication of knowing clearly.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly relates to venous detaining needle.
Background technology
Along with its people are to the arrival of the attention of own health and China's aging society, owing to be in hospital and the increase of surgical patient, Emergency call are remained in a hospital under observation the increase of patient, the factor such as the state of an illness is complicated, turnover rate is fast, make infusion treatment more and more extensive.
Involved venous detaining needle, is a kind of for clinically repeatedly infusing, transfusing blood and the transparent medical grade plastic apparatus of injection etc., it eliminates the misery that patient accepts repeatedly acupuncture, and drug effect can be made to obtain the fastest performance.
And in clinical practice, what the venous detaining needle through peripheral vein was infused obstructedly makes most one of phenomenon of medical personnel's worries beyond doubt.It hinders medicinal liquid and inputs in time in patient body, has thus delayed treatment.More dangerous, obstructed phenomenon of infusing has invisible---and due to the variation of patient body position and transfusion side limbs posture, make unobstructed transfusion originally may become obstructed and stagnate even completely, and medical worker fails Timeliness coverage process.Rapid for the patient's change of illness state undergone surgery in situations in the surgery room, often need quick infusion and through venous detaining needle Quick medicine, especially for Cavity in Critical Patients, its impact may be fatal.Therefore, the hidden danger that obstructed of having become in clinical position of venous transfusion is common.Beyond the clinical position that this is quite heavy, medical worker pays extra a large amount of energy for this reason.
For avoiding the generation of this phenomenon, current custom mainly contains: custom one: the venous detaining needle selecting caliber thicker is to reduce obstructed odds of infusing.Custom two: choose thicker elbow venipuncture and put pipe.Custom three: once it is obstructed that transfusion occurs, after taking suitably to move back pipe, adjuvant is fixed or made patient take certain anchor and avoid again occurring again; Or open another vein to replace.
But three kinds of methods are not all optimal solutions.For custom one, research shows, remaining needle model is larger, caused pain, swelling, thrombophlebitis, and the incidence rate of puncture failure rate also increases thereupon, and indwelling time shortens relatively.Therefore, in principle under the prerequisite not affecting transfusion speed, the problem that can solve by ting model just need not model greatly.For custom two, caused retardance damage is larger because blood vessel is thicker, during the larger thus retained needle puncture of exercising elbow joint degree and indwelling for ulnar vein, thus in principle as far as possible selection open hand vein path.For custom three, likely again go wrong after adjustment.
Occur that the reason of above problem is: conventional venipuncture position exists physiological camber more, no matter be modal the back of the hand center, or the back of the hand oar side, and ulnar vein all make venous detaining needle needle tubing exist to a certain degree in the blood vessel because of the profile of carpal joint and elbow joint and natural flexing position bending, so that, there is venous valve in vein and also may just cover the mouth of pipe and have impact on unobstructed transfusion equally in opening plaster hematochezia tube wall and have impact on unobstructed transfusion in addition.
Utility model content
This utility model object is to solve the obstructed problem of above-mentioned venous transfusion well, thus saves medical worker's energy and time; And avoiding to ensure the venous detaining needle that flow velocity selects caliber thicker, causing increasing pain, swelling, thrombophlebitis, the incidence rate of puncture failure rate, shortening indwelling time.
Based on above-mentioned technical though, the technical scheme that this utility model realizes its object is:
A kind of Novel intravenous catheter syringe needle, comprises nook closing member, needle tubing.Needle tubing has main aperture one, side opening one, it is characterized in that: side opening is positioned at the needle tubing place corresponding to side, nook closing member inclined-plane, 3mm is no less than apart from main aperture place, rounded or the longer axis parallel of shape is seen in the ellipse of needle tubing in side opening front, side opening side is seen arcuately, end points tangent line and needle tubing angle are 30 ° ~ 45 °, and needle tubing accounts for 1/6 ~ 1/4 of circumference through side opening mid point cross section breach, and side opening area is no more than main aperture area.
Nook closing member described in the utility model is medical stainless steel product, inside has pin hole, and needle point is inclined-plane.
Needle cannula material described in the utility model, for having suitable elastic modelling quantity, the carrot-free medical plastic product of neat in edge, is preferably conventional polyurethane material.
Main aperture tightens up gradually to needle point place, is closely affixed with nook closing member front end, can smoothly slide, so that needle tubing inserts blood vessel.
This utility model this utility model can be widely used on current various brands and model remaining needle, realizes the technical though of its object well, improves the deficiency of current remaining needle both ways.First: when main aperture press close to blood vessel wall or press close to infuse obstructed caused by venous valve, can be infused by side opening, thus the unobstructed transfusion of effective guarantee.Second: when main aperture is unobstructed, main aperture and side opening are infused simultaneously, reduce liquid stream and to engage in this profession local resistance, improve transfusion speed.Under equal conditions, larger flow velocity can be reached than other venous detaining needles of equal model, thus the remaining needle of more large size need not be selected to meet flow rates demand certain clinically, reduce the incidence rate of related complication of knowing clearly.
Accompanying drawing explanation
Fig. 1 is this utility model Facad structure schematic diagram;
Fig. 2 is this utility model side structure schematic diagram;
Fig. 3 is that this utility model needle tubing is through side opening mid point cross sectional representation;
Fig. 4 is this utility model side structure schematic diagram (needle tubing insert blood vessel after, when main aperture is adherent);
Fig. 5 is this utility model side structure schematic diagram (needle tubing insert blood vessel after, when main aperture withstands on venous valve);
Fig. 6 be this utility model side structure schematic diagram (after needle tubing inserts blood vessel, main aperture adherent and when withstanding on venous valve);
Fig. 7 is this utility model side structure schematic diagram (needle tubing insert blood vessel after, when infusing unobstructed).
Detailed description of the invention
A kind of typical detailed description of the invention of this utility model is as shown in accompanying drawing 1 ~ 3.
As shown in Figures 1 to 3, a kind of Novel intravenous catheter syringe needle described in the utility model, comprises nook closing member 1, needle tubing 2.Needle tubing has main aperture 2-1 mono-, side opening 2-2 mono-.Side opening 2-2 is positioned at needle tubing 2 place corresponding to side, needle point 1-2 inclined-plane, is no less than 3mm apart from main aperture 2-1 place.Rounded or the longer axis parallel of shape is seen in the ellipse of needle tubing 2 in side opening 2-2 front.Side opening 2-2 side is seen arcuately, and end points tangent line and needle tubing 2 angle are 30 ° ~ 45 °.Side opening 2-2 center breach only accounts for 1/6 ~ 1/4 of circumference.Side opening 2-2 area is no more than main aperture 2-1 area.
Nook closing member 1 is medical stainless steel product, inside has pin hole 1-1, and needle point 1-2 is inclined-plane.
Needle tubing 2 material, for having suitable elastic modelling quantity, the carrot-free medical plastic product of neat in edge, is preferably conventional polyurethane material.
Main aperture tightens up gradually to needle point 1-2 place, is closely affixed with nook closing member 1 front end, can smoothly slide.Main aperture 2-1 bore is consistent with remaining needle standard model on current market.
This utility model can be widely used on current various brands and model remaining needle, and mode of operation is identical with mode existing clinically.Because side opening 2-2 is positioned at the needle tubing place corresponding to side, nook closing member inclined-plane, end points tangent line and needle tubing 2 angle are 30 ° ~ 45 °, and this angle makes needle tubing 2 substantially in streamlined, does not increase and puts pipe difficulty and mortality.Because side opening 2-2 improves flow velocity, thus the selected remaining needle compared with ting model is also conducive to the success of putting pipe.
As shown in figures 4-6, in modal the back of the hand center superficial vein, the back of the hand oar side superficial vein and ulnar vein site of puncture, owing to usually there is certain physiological camber, main aperture 2-1 press close to blood vessel wall 3 or press close to the caused transfusion of venous valve 4 obstructed when, can the unobstructed transfusion of side opening 2-2 be passed through, thus the unobstructed transfusion of effective guarantee.Needle tubing 2 is tubular type due to its structure, has suitable elastic modelling quantity in the bent state, and only accounts for 1/6 ~ 1/4 of circumference through side opening 2-2 mid point needle tubing 2 cross section breach, therefore still can keep uniform case of bending, is not easy to cause discounting distortion even to rupture.
As shown in Figure 7, when blood vessel wall 3 is comparatively straight and main aperture 2-1 front end stops without venous valve, main aperture 2-1 and the side opening 2-2 of needle tubing infuse simultaneously, reduce liquid stream to engage in this profession local resistance, improve transfusion speed, thus the remaining needle of more large size need not be selected in order to meet flow rates demand certain clinically, reduce the incidence rate of related complication of knowing clearly.
In addition, this utility model is preferably applied to be with the venous detaining needle of flank to reach optimum efficiency.Because peripheral blood vessel is often in case of bending, remaining needle with flank can limit needle tubing and rotate at Ink vessel transfusing, needle tubing lesser curvature side 5 not easily adherent under making side opening 2-2 be positioned at case of bending all the time, but not the large curved side 6 of easily adherent needle tubing, at utmost ensure unobstructed transfusion, and prevent side opening 2-2 edge to the scuffing of blood vessel wall.
This utility model trial effect is definite, well achieves original intention of the present utility model.
Above-described is only exemplary embodiment of the present utility model; should be understood that; to those skilled in the art; under the prerequisite not departing from this utility model structure; also can make suitably distortion and improve; should be considered as protection domain of the present utility model, these do not affect effect and the practical applicability of this utility model enforcement yet.
Claims (4)
1. a Novel intravenous catheter syringe needle, comprise nook closing member, needle tubing, needle tubing has main aperture one, side opening one, it is characterized in that: side opening is positioned at the needle tubing place corresponding to side, nook closing member inclined-plane, be no less than 3mm apart from main aperture place, the rounded or longer axis parallel of shape is seen in the ellipse of needle tubing in side opening front, side opening side is seen arcuately, end points tangent line and needle tubing angle are 30 ° ~ 45 °, and needle tubing accounts for 1/6 ~ 1/4 of circumference through side opening mid point cross section breach, and side opening area is no more than main aperture area.
2. a kind of Novel intravenous catheter syringe needle as claimed in claim 1, it is characterized in that: nook closing member is medical stainless steel product, inside has pin hole, needle point is inclined-plane.
3. a kind of Novel intravenous catheter syringe needle as claimed in claim 1, is characterized in that: needle cannula material is for having suitable elastic modelling quantity, the carrot-free medical plastic product of neat in edge.
4. a kind of Novel intravenous catheter syringe needle as claimed in claim 1, is characterized in that: needle tubing main aperture tightens up gradually to needle point place, is closely affixed with nook closing member front end, can smoothly slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396830.6U CN204233531U (en) | 2014-07-18 | 2014-07-18 | A kind of Novel intravenous catheter syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396830.6U CN204233531U (en) | 2014-07-18 | 2014-07-18 | A kind of Novel intravenous catheter syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204233531U true CN204233531U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420396830.6U Expired - Fee Related CN204233531U (en) | 2014-07-18 | 2014-07-18 | A kind of Novel intravenous catheter syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204233531U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267452A (en) * | 2016-08-29 | 2017-01-04 | 江苏艾拓生物技术有限公司 | A kind of big flow infusion needle |
| CN108434549A (en) * | 2018-03-30 | 2018-08-24 | 陶霞霞 | A kind of infusion remaining needle |
| CN111166966A (en) * | 2020-01-30 | 2020-05-19 | 江苏省人民医院（南京医科大学第一附属医院） | Novel intravenous puncture needle with guide wire |
-
2014
- 2014-07-18 CN CN201420396830.6U patent/CN204233531U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267452A (en) * | 2016-08-29 | 2017-01-04 | 江苏艾拓生物技术有限公司 | A kind of big flow infusion needle |
| CN108434549A (en) * | 2018-03-30 | 2018-08-24 | 陶霞霞 | A kind of infusion remaining needle |
| CN111166966A (en) * | 2020-01-30 | 2020-05-19 | 江苏省人民医院（南京医科大学第一附属医院） | Novel intravenous puncture needle with guide wire |
| CN111166966B (en) * | 2020-01-30 | 2022-04-12 | 江苏省人民医院（南京医科大学第一附属医院） | Novel intravenous puncture needle with guide wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20170718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |