CN103110998B - There is the intravenous pin of the visual blood back function of rapid sensitive - Google Patents
There is the intravenous pin of the visual blood back function of rapid sensitive Download PDFInfo
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- CN103110998B CN103110998B CN201310086740.7A CN201310086740A CN103110998B CN 103110998 B CN103110998 B CN 103110998B CN 201310086740 A CN201310086740 A CN 201310086740A CN 103110998 B CN103110998 B CN 103110998B
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Abstract
The present invention relates to the intravenous pin with the visual blood back function of rapid sensitive, comprise needle stand, needle stand hand holding handle, needle body, needle body protective sleeve, flexible coupling hose, be characterized in: flexible coupling hose and needle stand are made by transparent material; The cross section of flexible coupling hose is ellipticity.Intravenous pin also comprises the safe sleeve pipe of steel, casing seat, casing seat hand holding handle, the self-locking shell fragment of joint sleeve base rear end, the spacing tooth be located on self-locking shell fragment rear inside face.Above-mentioned flexible coupling hose adopts oval flexible pipe, compared to circular hose, under the condition of identical venous pressure, the deflection of oval flexible pipe is significantly greater than circular hose, cause the quick compatibilization pressure drop of connecting hose, form larger pressure differential, thus accelerate venous blood to the flowing velocity in connecting hose and the visual length of flow increasing venous blood, achieve the visual blood back of rapid sensitive.In addition, intravenous pin accidentally injures function after being also provided with anti-puncture vascular function, anti-leakage function, anti-fall function and anti-pin.
Description
Technical field
The invention belongs to clinical medicine intravenous needle application, particularly a kind of intravenous pin with the visual blood back function of rapid sensitive, be mainly used in the transfusion of disposable ordinary venous, vacuum venous blood-sampling and Venous fluids and inject.
Background technology
The venipuncture of clinical medicine, is mainly used in following four fields: 1. vein vacuum blood collection field; 2. Venous fluids injects field; 3. the disposable common transfusion field of vein; 4. many days repeatedly special transfusion fields realizing of the venous detaining needle of application specific.First three is planted because jointly having the disposable feature used in short-term, so its intravenous needle used is similar, all adopts steel intravenous needle.Though it is simple to have structure, use cost is cheap and easy to operate, feature efficiently, and it cannot be applied to the special transfusion field that needs are repeatedly infused for many days.And the special venous transfusion that aims at many days repeatedly and the venous detaining needle that manufactures and designs, on the one hand because of complex structure, such as: needing to manufacture and design calparine cap carrys out injecting heparin and prevent blood coagulation, this application of planting at first three is unnecessary at all not needing.Both add manufacturing cost and turn increased use cost, also bring operation inconvenience slightly.On the other hand the connector such as and the steel puncture needle that be mated high because of intravenous flexible Injector Bushing machining accuracy also needs high precision again, and cause the high manufacturing cost of its venous detaining needle and high use cost, first three application of planting inapplicable too.Both can not realize the exchange use mutually in different application field, more can not lump together on concept.And nurse is when carrying out the venipuncture in first three field to patient, no matter be venous transfusion or venous blood collection, whether can realize the satisfied visual blood back of rapid sensitive particularly important, also be nurse judge syringe needle whether enter in vein blood vessel the most simply, the most fast, prefered method, or nurse the most accurately carries out the key point of subsequent operation.And the common disposable vein pin of extensive use clinically is now when infusing or take a blood sample, often there will be difficulty and seeing blood back phenomenon.Causing the young nurses of lacking experience when venipuncture, because can not see blood back, causing the phenomenon of puncture muff or failure to happen occasionally.When especially running into especial patient, special disease kind, the special state of an illness, this kind of phenomenon is just more outstanding, just more unfavorable to completing venipuncture smoothly.Such as: the Manic patient coordinated or the child patient of crying and screaming in terror are difficult to some, even veteran old nurse, sometimes also the difficult syringe needle with the light resistance disappearance generation after syringe needle moment intravasation falls through sense to prove that syringe needle has entered into Ink vessel transfusing.Because of the prerequisite of this sensation, one wants the peace and quiet of patient to coordinate, and two want the dispassionate of nurse to concentrate.Therefore, study the visual blood back function of a kind of existing rapid sensitive, simple and practical again, the manufacturing cost of a money is not increased to enterprise, under the prerequisite of operational motion not increasing nurse, ensureing that nurse is constant at existing operating habit and the intravenous pin of handled easily is particularly urgently important, is also common actual needs and the Gospel of doctor and patient.
In addition, according to the three elements principle of World Health Organization (WHO) WHO about safety injection (infusion): 1, harmless to implementer; 2, harmless to receiver; 3, will to environment and other people harmless requirement.And the common disposable vein pin product (except nonexpondable venous detaining needle) making a general survey of present extensive use except can not be satisfied with solution venipuncture time the visual blood back of rapid sensitive a difficult problem except, also four weak points below existence in various degree, specific as follows:
1, the ordinary venous pin of main flow does not have anti-puncture vascular function, when clinical practical operation, sometimes because the lack of skill of nurse or patient coordinate the reasons such as bad, there is intravenous needle piercing blood vessel phenomenon, and cause venipuncture failure, must venipuncture again.And although individual product has this function, but there is unhandy weak point.
2, when infusing or take a blood sample, syringe needle is deviate from blood vessel phenomenon and is happened occasionally, and specialty is commonly called as " drum ", leads to the failure, must venipuncture again.When normal venipuncture, lunge blood vessel when intravenous needle and see blood back (veteran nurse, under coordinating in the peace and quiet of patient, by the sense that falls through that the pop-off of syringe needle resistance produces, can thrust Ink vessel transfusing by perception determination syringe needle, and definitely non-ly need not see blood back), at once intravenous needle need be transferred to after connecing subparallel position with blood vessel, in continuation to Ink vessel transfusing inserting needle 5-10mm, to prevent in the process of infusing or take a blood sample, due to the slight malfunction of patient, cause syringe needle to deviate from blood vessel, cause the failure of transfusion or blood sampling.And this kind of phenomenon mostly occurs when the blood vessel difficulty because of patient pricks (as blood vessel is not thick, vascular bending is not straight, meticulous excessively flat), because nurse is afraid of piercing blood vessel, syringe needle dare not be sent to endovascular reasonable depth, cause syringe needle too short at Ink vessel transfusing actual range, patient is slightly--and movable or occur slight tractive, the phenomenon just likely causing syringe needle to be deviate from occurs.
3, when infusing, time have Seepage to occur, its main cause is that the width of the inserting needle cutting edge of venous needle both sides is almost equal with the external diameter of intravenous needle, causes pin hole comparatively greatly, has had a strong impact on the pin hole of blood vessel wall to the clamping force of intravenous needle cylindrical and sealing.When infusing, can because of patient, sick to plant, the difference of the state of an illness and medicinal liquid, occur that medicinal liquid is along its pin hole outwards seepage in various degree, when some Drug leakage excitatory is to patient's subcutaneous tissue sometimes, will produce to stimulate to subcutaneous tissue and even injure, bring misery to patient.
4, syringe needle incidental injury prevention function is not had.The disposable ordinary venous pin of present extensive use, because not having syringe needle Anti-stabbing function, when the syringe needle of band blood is extracted by nurse, there is the generation of accidental injury nurse or other people phenomenon in time and causes infecting or infecting.If nurse forces again to overlap original aseptic safe sleeve pipe after withdrawal of needle, in the process of encapsulation, because condom pore is very little, not easily aim at, it is high all the better to the accidental injury probability of nurse.
Summary of the invention
The present invention for solve in known technology the technical problem that exists and provide a kind of low cost, simple and practical, be convenient to nurse and carry out judging and operate, thus the intravenous pin with the visual blood back function of rapid sensitive of raising puncture success rate.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
There is an intravenous pin for the visual blood back function of rapid sensitive, comprise needle stand, the needle stand hand holding handle be located on needle stand, needle body, be sleeved on needle body protective sleeve, the flexible coupling hose of needle body outside; The rear end plug-in mounting sealing of needle body is in the front end of needle stand, the front end plug-in mounting sealing of flexible coupling hose is in the rear end of needle stand, the rear end of flexible coupling hose is connected with the rear portion of intravenous transfusion device and sealing or the also sealing that is connected with the rear portion of vacuum venous blood-sampling pin, it is characterized in that: described flexible coupling hose and needle stand are made by transparent material; The cross section of flexible coupling hose is ellipticity.
The technical scheme that the present invention can also take is:
Described intravenous pin also comprises the safe sleeve pipe of steel, the casing seat be made up of transparent material, the casing seat hand holding handle be located on casing seat; The rear end plug-in mounting sealing of the safe sleeve pipe of described steel is in the front end of casing seat; Described casing seat and needle stand coaxially slip plug-in mounting coordinate; Described steel condom pipe box is contained in needle body outside, and both are axial sliding fit, and the front end face of the safe sleeve pipe of steel is flat-head shape; The rear end of described casing seat hand holding handle is connected with self-locking shell fragment, and the rear inside face of self-locking shell fragment is provided with the spacing tooth preventing casing seat and needle stand from departing from.
The advantage that the present invention has and good effect are:
1, flexible coupling hose adopts oval flexible pipe, compared to existing circular hose, under the condition of identical venous pressure, the deflection of oval flexible pipe is significantly greater than circular hose, cause the quick compatibilization pressure drop of connecting hose, form larger pressure differential, thus accelerate venous blood to the flowing velocity in connecting hose and the visual length of flow increasing venous blood, achieve the visual blood back of rapid sensitive.
2, the structure be made up of the safe sleeve pipe of steel, casing seat, casing seat hand holding handle, self-locking shell fragment and spacing tooth solves four weak points existed in prior art, accidentally injures function after making intravenous pin be provided with anti-puncture vascular function, anti-leakage function, anti-fall function and anti-pin.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention when not using;
Fig. 2 is the structural representation of the present invention in use or after using;
Fig. 3 is decomposing state reference diagram of the present invention;
Fig. 4 is the A-A sectional view of 3.
In figure: 1, needle stand; 2, needle stand hand holding handle; 3, needle body; 4, needle body protective sleeve; 5, flexible coupling hose; 6, the safe sleeve pipe of steel; 7, casing seat; 8, casing seat hand holding handle; 9, self-locking shell fragment; 10, spacing tooth.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1-4, a kind of intravenous pin with the visual blood back function of rapid sensitive, comprise needle stand 1, the needle stand hand holding handle 2 be located on needle stand, needle body 3, the needle body protective sleeve 4 being sleeved on needle body outside, flexible coupling hose 5.Needle stand and needle stand hand holding handle adopt integrated injection molding structure usually.Wherein needle stand hand holding handle one side or two-sided on can be injected with Cleat structures simultaneously, such as point-like is protruding.Needle body protective sleeve plays intravenous needle Tip protection effect before use.The rear end plug-in mounting sealing of needle body is in the front end of needle stand.The front end plug-in mounting sealing of flexible coupling hose is in the rear end of needle stand.The rear end of flexible coupling hose can be connected with the latter half of intravenous transfusion device and sealing, forms complete intravenous transfusion device; Also can be connected with the latter half of vacuum venous blood-sampling pin and sealing, form complete vacuum venous blood-sampling pin.Described flexible coupling hose and needle stand are made by transparent material, its objective is for realizing visual blood back.The cross section of flexible coupling hose is ellipticity, and namely flexible coupling hose is oval pipe.
Flexible coupling hose adopts oval pipe, and it is compared to existing circular hose structure, the visual blood back of rapid sensitive when achieving venipuncture, and its function and principle are specially:
The design is that student is to original innovation study factor process.Which utilizes that circular hose is identical at material with oval flexible pipe, elasticity is identical, wall thickness is identical, girth is identical, length is identical, and at identical conditions, intravenous needle is thrust vein blood vessel, and venous pressure is again under identical prerequisite, the practical distortion amount of two flexible pipes really there will be significant difference, and namely the deflection of oval flexible pipe is significantly greater than circular hose.For these reasons, oval flexible pipe can cause the Rapid Expansion distortion of moment under the condition of identical venous pressure, cause the quick compatibilization pressure drop of this section of flexible pipe, endovascular venous pressure is caused significantly to be greater than pressure in this section of oval flexible pipe, form larger pressure differential, so the venous blood achieved in vein blood vessel is rapidly to the long distance flowing of this section of transparent visual ellipse flexible pipe.Really achieve object and the function of the visual blood back of rapid sensitive.The visual length of the blood line through testing its visual blood back can reach 10-30mm.Its advantage not only to realize the visual blood back close to 100%, and because of its blood back rapid sensitive, and the increase at double of blood back visual range and length is also very clear, and nurse can be made to accomplish to know what is what when operating.Thus significantly reducing the mortality of venipuncture and improving in the success rate of venipuncture, play pivotal role.Especially to the young nurses of lacking experience and the blood vessel pricked of vein difficulty just even more important.The visual blood back function of this rapid sensitive is in structural design, without the need to designing any extra auxiliary blood back structure, just the shape of transparent visual flexible pipe is changed into oval flexible pipe from present typical circular flexible pipe, when not increasing any manufacturing cost, bring great convenience really to the Successful Operation of nurse, really achieve simple and practical object.
On the basis of technique scheme, take into account the three elements principle of World Health Organization (WHO) WHO about safety injection (infusion), the present invention is directed to 4 weak points proposed in prior art, improved in the lump, form new technical scheme, and oneself is placed oneself in the midst of enterprise, in tripartite's position of patient and medical care, comprehensively think deeply, repetition test and scientific optimization, achieve intravenous pin height constructively to simplify, thus the manufacturing cost of enterprise is significantly reduced, both the low cost of medical disposable material had been met, the design principle of low price, create prerequisite to again the market competition of enterprise and profit, also the health care expenditures of patient and family members are alleviated accordingly.For in the consideration of nurse, as a retirement old docter of TCM for many years, know very well that the work of nurse is the most tired the most arduous, so the present invention really achieves convenient and simple for operation quick, safe and practical, definitely avoid contaminated pinhead, accidentally injure nurse and other people, cause infect with infect risk occur.Concrete technical scheme of the present invention is: described intravenous pin also comprises the safe sleeve pipe 6 of steel, the casing seat 7 be made up of transparent material, the casing seat hand holding handle 8 be located on casing seat.Casing seat hand holding handle and casing seat integrated injection molding, wherein casing seat hand holding handle one side or two-sidedly can be injected with Cleat structures simultaneously, such as point-like is protruding.The rear end plug-in mounting sealing of described safe sleeve pipe is in the front end of casing seat.Described casing seat and needle stand coaxially slip plug-in mounting coordinate.Namely two are designed to plug-in type sliding matching structure at the position contacted, stability when sliding axially along needle stand in order to reinforcing sleeve base.Be specially, casing seat and needle stand can adopt just to be inserted or anti-plug two kinds of structures, and be positive inserting structure in accompanying drawing, namely casing seat is inserted in the cavity of needle stand, otherwise is also applicable to the present invention.Described condom pipe box is contained in needle body outside, and both are axial sliding fit, and the front end face of safe sleeve pipe is flat-head shape.For ensureing the precision that safe sleeve pipe coordinates with needle body and avoiding burr to scratch blood vessel, the front end face of safe sleeve pipe needs smooth.The rear end of described casing seat hand holding handle is connected with self-locking shell fragment 9, and the rear inside face of self-locking shell fragment is provided with the spacing tooth 10 preventing casing seat and needle stand from departing from.Namely, when casing seat moves forward to maximum setting stroke along needle stand, spacing tooth is clamped on the rear end face of needle stand.The effect of self-locking shell fragment and spacing tooth is: control the range of casing seat and prevent needle body from departing from safe sleeve pipe, thus thoroughly avoids by the syringe needle of blood contamination nurse or other people accidental injury and infection.Both be convenient to manufacture and assembling, eliminated again the operation bidirectional of nurse, not only simple but also practical.
Above-mentioned safe sleeve pipe is all different in the field of use, job specification, work characteristics and using method from the safe sleeve pipe of the plastic flexible of venous detaining needle.Safety sleeve pipe need select specific steel tubular goods manufacture to form, it not only significantly can reduce manufacturing cost, and (its cost is less than 1/5 of the safe sleeve pipe cost of plastic flexible, this reduction manufacturing cost and use cost, inherently one of the important behaviour of patent practicality) and difficulty of processing, and the intensity of Yin Teding steel tubular goods is good, easy processing characteristic, that the wall thickness of safe sleeve pipe can be done is very thin, can significantly lower than the wall thickness of the safe sleeve pipe of plastic flexible of venous detaining needle, it is very level and smooth that the end face of its butt end not only can be processed, and the outer nose circle angle of its tack end face also can realize the round and smooth slight ramp with being satisfied with chamfering, thus significantly can reduce the penetration Resistance of intravenous needle, and the damage alleviated further the inserting needle hole surrounding tissue in blood vessel wall and blood vessel, degree of injury is reduced and is reduced to the limit, to the blood vessel tool significance protecting patient to greatest extent.
When above-mentioned intravenous needle is applied to vacuum venous blood-sampling field, Medical silicone oil can be smeared in the gap that is slidably matched between needle body and safe sleeve pipe, reinforced seal effect, ensure the positive confinement effect under negative pressure hemostix state, prevent air from entering blood, cause the generation of gaseousness pulmonary infarction and the quality of impact blood sampling blood sample.
The technical scheme of above-mentioned improvement, makes intravenous pin on the basis realizing the visual blood back of rapid sensitive, solves the deficiency of four anti-that mention in prior art simultaneously, is provided with four anti-functions, is specially:
1, anti-puncture vascular function and principle: when nurse is according to rule of operation and custom, this intravenous needle syringe needle is thrust blood vessel and sees blood back, intravenous needle can be transferred to basic parallel with vein blood vessel, and continue inserting needle 5-10mm forward, prevent syringe needle from deviating from blood vessel and cause operation failure and some zest medicinal liquid to hypodermic injury and stimulation.Its method is identical with existing traditional method.And be the phenomenon preventing syringe needle from occurring needle pierces blood vessel in the process continuing inserting needle, now only the right hand holding vein needle stand hand holding handle need be kept motionless, intravenous needle is made to stop inserting needle, then casing seat hand holding handle is held with left hand, and by its steadily before push away, can intravenous needle syringe needle be all inserted in the tube chamber of safe sleeve pipe, not only prevent the generation of needle pierces blood vessel but also achieve rational depth of needle.
2, anti-leakage function and principle: the structure of intravenous needle of the present invention absorbs the advantage of main flow venous detaining needle, be by condom pipe box on the cylindrical of needle body, though the cutting edge of syringe needle both sides is substantially equal with the external diameter of syringe needle, but it is significantly less than the external diameter of safe sleeve pipe, in fact because the little pin hole on venous blood tube wall is because being enclosed within the cylindrical of safe sleeve pipe, therefore cause the pin hole in blood vessel wall to increase the clamping force of safe sleeve pipe cylindrical, cause significantly improving of its sealing.Therefore the seepage avoiding or alleviate some medicinal liquid subcutaneously to organize along the contact site between pin hole and safe sleeve pipe to greatest extent, prevents or alleviates some specific stimulation medicinal liquid to hypodermic stimulation, even causes downright bad generation.Simultaneously because the tube wall of vein blood vessel has certain elasticity and retractility, cause the resistance of the butt end of the safe sleeve pipe of steel when intravasation wall pin hole to be significantly less than plastic safety sleeve pipe, its resistance is almost imperceptible.Both facilitate the normal operating of nurse, completely eliminate again the discomfort sensation of patient.
3, anti-fall function and principle: except special patient, special disease kind or special circumstances, under normal circumstances, intravenous needle syringe needle is deviate from, the overwhelming majority pricks because running into blood vessel difficulty, blood vessel is straight, blood vessel is meticulous or the obvious reason such as bending, causes the young nurses of lacking experience after seeing blood back, is afraid of blood vessel to pierce through and send 5-10mm before syringe needle dare not being continued, make syringe needle arrive endovascular depth desired, cause inserting needle excessively shallow.Syringe needle from vein pin hole too close to, as long as in the process of transfusion or blood sampling, patient coordinates bad or occur slight malfunction a little, the needle section of intravenous needle can be caused to deviate from blood vessel, occur that venous blood or medicinal liquid enter subcutaneous tissue, and make transfusion or take a blood sample unsuccessfully.And the present invention is because being designed with preventing cut through blood vessel function, relieve the trouble and worry of nurse, can make nurse relieved courageously by operation requirements, intravenous needle syringe needle is sent to endovascular depth desired (5-10mm), thus avoid deviating from of syringe needle preferably, serve Anti-extrusion effect.
4, accidentally injure function and principle after anti-pin: blood stains syringe needle, accidentally injure nurse and other people, cause infect or infect happen occasionally, had a strong impact on nurse and other people physical and mental health.An above-mentioned difficult problem is overcome in the urgent need to a kind of simple and practical solution.Because the present invention is designed with self-locking shell fragment and spacing tooth on casing seat, and be mutually slidably connected with needle stand, make the slip between two once exceed the sliding distance of design code, spacing tooth is about to two and locks firmly and make two can not be separated.If start preventing cut through blood vessel function when venipuncture, syringe needle is built within safe sleeve pipe tube chamber.When withdrawal of needle, as long as hold needle stand hand holding handle or intravenous needle is extracted by direct pull flexible coupling hose, its syringe needle can avoid the generation to nurse and other people accidental injury or infection of syringe needle because polluting all the time in the tube chamber of safe sleeve pipe.If run into the vein blood vessel of bundle and patient can well coordinate again time (this kind of situation occupies the majority).Now nurse can use preventing cut through blood vessel function, can traditionally venipuncture procedure, only need when withdrawal of needle, with left hand fixed cover base or casing seat hand holding handle motionless, the right hand pulls flexible coupling hose or needle stand hand holding handle, all can easily by the needle retraction of intravenous needle in the tube chamber of safe sleeve pipe, to prevent after withdrawal of needle by the syringe needle of blood contamination nurse and other people accidental injury and risk that is infected or that infect.
Although the intravenous pin structure above-mentioned with four anti-functions is simple, but do not bias toward solution deficiency in a certain respect, but conscientiously take into account the three elements principle of World Health Organization (WHO) WHO about safety injection (infusion) simultaneously, define a kind of to implementer, to receiver, to environment and his new product harmless per capita.This product is all better than existing vein blood taking needle in comprehensive, comprehensive, complementary, property taken into account etc., is therefore also easy to be accepted by market and welcome.Also demonstrate extremely simple product simultaneously, too small to space and be subject to the product using performance constraint, be difficult to improve or create improve, the work of more difficult realization crucial touch.Especially the cost consumptive material intravenous needle that can not significantly improve, also will take into account the safety of patient, comfortableness, the habituation of nurse operation and convenience simultaneously, just extremely difficult especially.
Above-mentioned total process of assembling with the intravenous pin of four anti-functions:
The structure height of this intravenous pin is simple and practical, a plug-in type action is only needed during general assembly, needle body is inserted in casing seat and safe sleeve pipe, and the insertion of two connection is put in place, namely general assembly has accused, now needle stand automatically locks by the spacing tooth of self-locking shell fragment end, achieves between two and can slide axially in the distance of setting, but can not depart from separately.
The above-mentioned intravenous pin usage with four anti-functions has three kinds, is specifically described as follows:
If 1 run into the vein blood vessel of bundle and patient can well coordinate again time, do not need to start preventing cut through blood vessel function, only need operate by now traditional vein blood vessel piercing method, in other words with the method for puncture striking resemblances of ordinary venous pin.Difference, when withdrawal of needle, with left hand fixed cover base or casing seat hand holding handle, the right hand pulls flexible coupling hose or needle stand hand holding handle, all can easily by intravenous needle needle retraction in the tube chamber of safe sleeve pipe, after preventing withdrawal of needle by the syringe needle of blood contamination to nurse and other people accidental injury cause infected or infect risk.Thus, this operational approach and operation principle are also and the crucial difference of venous detaining needle or difference.
2, when implementing venipuncture, when running into the blood vessel of difficult bundle or running into the patient that can not coordinate very well.When seeing blood back, anti-puncture vascular function can be started at once, realizing piercing through protection to the anti-of vein blood vessel.At the end of transfusion or blood sampling, it is identical that method and the existing tradition of withdrawal of needle play needle method, do not repeat them here.
3, no matter nurse is for venous transfusion, or vacuum venous blood-sampling, all can carry out venipuncture and withdrawal of needle according to existing traditional method.Accidentally injure function after only need starting anti-pin immediately after withdrawal of needle: the right hand is held needle stand hand holding handle and maintained static, left hand hold casing seat hand holding handle and gently on shift position onto, the needle portion of intravenous needle can be nested in the tube chamber of safe sleeve pipe, make it to expose.Also just thoroughly avoid and occurred that accidentally injuring nurse or other people and risk that is infected, that infect occurs by the syringe needle of blood contamination.
In a word, really for hard working provides the nurses of nursing station, a kind of have can the intravenous pin of multioperation method for the intravenous pin originally with four anti-functions.Really achieve and according to the difficulty of venipuncture, the quality of patient's cooperation and the technical merit of nurse and custom, can in person can determine specifically to select which kind of operational approach by nurse best, revolutionize the situation that nurse is for many years passive execution.On the basis facilitating nurse operation, achieve the final purpose to patient, nurse and other people omnibearing protection.
Claims (2)
1. there is an intravenous pin for the visual blood back function of rapid sensitive, comprise needle stand, the needle stand hand holding handle be located on needle stand, needle body, be sleeved on needle body protective sleeve, the flexible coupling hose of needle body outside; The rear end plug-in mounting sealing of needle body is in the front end of needle stand, the front end plug-in mounting sealing of flexible coupling hose is in the rear end of needle stand, the rear end of flexible coupling hose is connected with the rear portion of intravenous transfusion device and sealing or the also sealing that is connected with the rear portion of vacuum venous blood-sampling pin, it is characterized in that: described flexible coupling hose and needle stand are made by transparent material; The cross section of full section flexible coupling hose is ellipticity, and flexible coupling hose is oval pipe; Under the effect of venous pressure, the major axis of flexible coupling hose cross section shortens, minor axis is elongated, and the cavity volume of flexible coupling hose is increased.
2. the intravenous pin with the visual blood back function of rapid sensitive according to claim 1, is characterized in that: described intravenous pin also comprises the safe sleeve pipe of steel, the casing seat be made up of transparent material, the casing seat hand holding handle be located on casing seat; The rear end plug-in mounting sealing of the safe sleeve pipe of described steel is in the front end of casing seat; Described casing seat and needle stand coaxially slip plug-in mounting coordinate; Described steel condom pipe box is contained in needle body outside, and both are axial sliding fit, and the front end face of the safe sleeve pipe of steel is flat-head shape; The rear end of described casing seat hand holding handle is connected with self-locking shell fragment, and the rear inside face of self-locking shell fragment is provided with the spacing tooth preventing casing seat and needle stand from departing from.
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| CN201310086740.7A CN103110998B (en) | 2013-03-19 | 2013-03-19 | There is the intravenous pin of the visual blood back function of rapid sensitive |
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| CN201310086740.7A CN103110998B (en) | 2013-03-19 | 2013-03-19 | There is the intravenous pin of the visual blood back function of rapid sensitive |
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| CN103110998B true CN103110998B (en) | 2015-12-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103405824A (en) * | 2013-08-27 | 2013-11-27 | 贾宇东 | Flat and round infusion tube and high-limiting adjuster composited standard blood return interpretation system |
| CN103705996A (en) * | 2014-01-07 | 2014-04-09 | 山东威高集团医用高分子制品股份有限公司 | Peripheral vein transfusion catheter |
| CN111856988A (en) * | 2020-06-05 | 2020-10-30 | 哈工大机器人(中山)无人装备与人工智能研究院 | Motion control method and device of blood sampling device |
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| CN2892101Y (en) * | 2005-11-04 | 2007-04-25 | 浙江康康医疗器械有限公司 | Self dilating pressure reducing blood reverted apparatus |
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| CN202553946U (en) * | 2012-05-15 | 2012-11-28 | 王振民 | Anti-stabbed bloodiness-prevention needle guard integrated novel venous injection needle with post-operation needle end |
| CN102847205A (en) * | 2011-06-30 | 2013-01-02 | 南通伊诺精密塑胶导管有限公司 | Antibacterial anti-countercurrent remaining needle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| NO20024883D0 (en) * | 2002-10-09 | 2002-10-09 | Amersham Health As | Snake |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892101Y (en) * | 2005-11-04 | 2007-04-25 | 浙江康康医疗器械有限公司 | Self dilating pressure reducing blood reverted apparatus |
| CN202136638U (en) * | 2011-01-10 | 2012-02-08 | 许春燕 | Disposable pipe-washing-free vesica-type negative pressure venous indwelling needle |
| CN102847205A (en) * | 2011-06-30 | 2013-01-02 | 南通伊诺精密塑胶导管有限公司 | Antibacterial anti-countercurrent remaining needle |
| CN202553946U (en) * | 2012-05-15 | 2012-11-28 | 王振民 | Anti-stabbed bloodiness-prevention needle guard integrated novel venous injection needle with post-operation needle end |
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