CN103110998A - Novel vein needle with quick, sensitive and visible blood returning functions - Google Patents
Novel vein needle with quick, sensitive and visible blood returning functions Download PDFInfo
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- CN103110998A CN103110998A CN2013100867407A CN201310086740A CN103110998A CN 103110998 A CN103110998 A CN 103110998A CN 2013100867407 A CN2013100867407 A CN 2013100867407A CN 201310086740 A CN201310086740 A CN 201310086740A CN 103110998 A CN103110998 A CN 103110998A
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Abstract
The invention relates to a novel vein needle with a quick, sensitive and visible blood returning function. The novel vein needle comprises a needle base, a needle base handle, a needle body, a needle body protective cover and an elastic connecting hose. The novel vein needle is characterized in that the elastic connecting hose and the needle base are made of transparent materials; and the cross section of the elastic connecting hose is elliptical. The novel vein needle further comprises a steel safe sleeve, a sleeve base, a sleeve base handle, a self-locking elastic piece connected to the rear end of the sleeve base and a limiting tooth arranged on the inner side face at the rear end of the self-locking elastic piece. The elastic connecting hose is an elliptical hose, and compared with a circular hose, the deformation of the elliptical hose is remarkably greater than that of the circular hose under a same venous pressure, so that the quick capacity-increasing pressure of the connecting hose is reduced to form a larger pressure difference, so as to increase the flowing speed of venous blood to the connecting hose and prolong the visible flowing length of venous blood, therefore, quick, sensitive and visible blood return is realized. In addition, the novel vein needle further has the blood vessel puncture preventing function, the seep preventing function, the separation preventing function and the function of preventing accidental injury caused by the rear part of the needle.
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 disposable common venous transfusion, vacuum venous blood-sampling and vein medicinal liquid and inject.
Background technology
The venipuncture of clinical medicine is mainly used in following four fields: 1. vein vacuum blood collection field; 2. the vein medicinal liquid is injected the field; 3. the disposable common transfusion of vein field; 4. the venous detaining needle of application specific realize many days special transfusion field repeatedly.First three is planted because jointly having the disposable characteristics of using in short-term, so the intravenous needle of its use is similar, all adopts the steel intravenous needle.Though have simple in structurely, use cost is cheap and easy to operate, characteristics efficiently, and it can't be applied to needs the many days repeatedly special transfusion fields of transfusion.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, for example: need to manufacture and design calparine cap comes injecting heparin to prevent blood coagulation, and this application in first three kind is unnecessary at all not needing.Not only increase manufacturing cost but also increased use cost, also brought operation inconvenience slightly.And the connectors such as steel puncture needle that be mated high because of intravenous flexible Injector Bushing machining accuracy also needs high precision again on the other hand, and cause high manufacturing cost and the high use cost of its venous detaining needle, the application of inapplicable first three kind too.Both can not realize more can not lumping together on concept in the exchange in different application field use mutually.And the 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 that the satisfied visual blood back of rapid sensitive is particularly important, also that the nurse judges whether syringe needle enters the simplest, the quickest, the key point that prefered method, or nurse is the most accurately carried out subsequent operation in vein blood vessel.And the common disposable vein pin of present extensive use clinically difficulty often can occur and see the blood back phenomenon when transfusion or blood sampling.The young nurses that causes lacking experience because can not see blood back, causes that puncture muff or failed phenomenon happen occasionally when venipuncture.When especially running into especial patient, special disease kind, the special state of an illness, this kind phenomenon is just more outstanding, and is just more unfavorable to completing smoothly venipuncture.For example: to some Manic patient that is difficult to coordinate or the child patient of crying and screaming in terror, even veteran old nurse sometimes also difficultly proves that with the syringe needle that the produces sense that falls through that disappears of the slight resistance after syringe needle moment intravasation syringe needle has entered in blood vessel.Because of the prerequisite of this sensation, one wants patient's peace and quiet 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, do not increase the manufacturing cost of a money to enterprise, under the prerequisite of the operational motion that does not increase the nurse, guaranteeing that the nurse is particularly urgently important at existing operating habit intravenous pin constant and handled easily, is also common actual needs and the Gospel of doctor and patient.
In addition, according to the three elements principle of the WHO of World Health Organization (WHO) about safety injection (infusion): 1, harmless to the implementer; 2, harmless to the receiver; 3, will be to environment and requirement that other people are harmless.And the difficult problem of the visual blood back of rapid sensitive of the common disposable vein pin product (except nonexpondable venous detaining needle) of making a general survey of present extensive use during except the solution venipuncture that can not be satisfied with, in various degree following four weak points of existence also, specific as follows:
1, the common intravenous needle of main flow does not have anti-puncture vascular function, when clinical practical operation, lack of skill or the patient because of the nurse coordinates the reasons such as bad sometimes, intravenous needle piercing blood vessel phenomenon occurs, and cause venipuncture failed, venipuncture again.Although and individual product has this function, but there is unhandy weak point.
2, when transfusion or blood sampling, syringe needle is deviate from the blood vessel phenomenon and is happened occasionally, and specialty is commonly called as " drum ", leads to the failure, again venipuncture.When normal venipuncture, when intravenous needle lunges blood vessel and sees blood back (veteran nurse, under coordinating as the peace and quiet patient, the sense that falls through that can produce by the pop-off of syringe needle resistance, can perception determine that syringe needle has thrust in blood vessel, and need not the definitely non-blood back of seeing), after need are transferred to intravenous needle at once and connect subparallel position with blood vessel, continuing inserting needle 5-10mm in the blood vessel, to prevent in the process of transfusion or blood sampling, slight malfunction due to patient causes syringe needle to deviate from blood vessel, causes the failure of transfusion or blood sampling.And mostly occurring, this kind phenomenon pricks (as blood vessel is not thick, vascular bending is not straight, meticulous excessively flat) in the situation that due to illness people's blood vessel is difficult, because the nurse is afraid of piercing blood vessel, dare not be sent to endovascular reasonable depth to syringe needle, cause syringe needle actual range in blood vessel too short, patient is slightly--and movable or slight tractive occurs, the phenomenon generation that just might cause syringe needle to be deviate from.
3, in when transfusion, the time have Seepage to occur, its main cause is that the width of the inserting needle cutting edge of venous needle both sides almost equates with the external diameter of intravenous needle, causes pin hole larger, has had a strong impact on the pin hole of blood vessel wall to clamping force and the sealing of intravenous needle cylindrical.When transfusion, due to illness the difference of people, sick kind, the state of an illness and medicinal liquid, medicinal liquid occurs sometimes along the outside seepage in various degree of its pin hole, when some medicinal liquid excitatory leaks into patient's subcutaneous tissue, will produce subcutaneous tissue stimulates even injury, brings misery to patient.
4, there is no syringe needle incidental injury prevention function.The disposable common intravenous needle of now extensive use, because of there is no syringe needle Anti-stabbing function, when the nurse will extract with the syringe needle of blood,, there was the generation of accidentally injuring nurse or other people phenomenon in time and causes infecting or infection.If the nurse forces again to put original aseptic safe sleeve pipe after withdrawal of needle, in the process of encapsulation, because the condom pore is very little, be difficult for aiming at, its accidental injury probability to the nurse is high all the better.
Summary of the invention
The present invention for solve the technical problem that exists in known technology provide a kind of low cost, simple and practical, be convenient to the nurse and judge and operate, thereby 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 that exists in the solution known technology is:
A kind of intravenous pin with the visual blood back function of rapid sensitive comprises needle stand, is located at needle stand hand holding handle, the needle body on needle stand, the needle body protective sleeve that is sleeved on the needle body outside, elasticity connecting hose; The rear end plug-in mounting of needle body is enclosed in the front end of needle stand admittedly, the front end plug-in mounting of elasticity connecting hose is enclosed in the rear end of needle stand admittedly, the rear end of elasticity connecting hose is connected with the rear portion of intravenous transfusion device and consolidates envelope or be connected and consolidate envelope with the rear portion of vacuum venous blood-sampling pin, and it is characterized in that: described elasticity connecting hose and needle stand are made by transparent material; The cross section of elasticity connecting hose is ellipticity.
The technical scheme that the present invention can also take is:
The casing seat that described intravenous pin also comprises the safe sleeve pipe of steel, made by transparent material, be located at the casing seat hand holding handle on casing seat; The rear end plug-in mounting of the safe sleeve pipe of described steel is enclosed in the front end of casing seat admittedly; Described casing seat coordinates with the coaxial slip plug-in mounting of needle stand; Described steel condom pipe box is contained in the 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 the self-locking shell fragment, and the rear inside face of self-locking shell fragment is provided with the spacing tooth that prevents that casing seat and needle stand break away from.
Advantage and good effect that the present invention has are:
1, the elasticity connecting hose adopts oval flexible pipe, than existing circular hose, under the condition of identical venous pressure, the deflection of oval flexible pipe is significantly greater than circular hose, the quick compatibilization pressure drop that causes connecting hose, form larger pressure differential, thus accelerated venous blood in the connecting hose flowing velocity and lengthened the visual length of flow of venous blood, realized the visual blood back of rapid sensitive.
2, the structure that is comprised of the safe sleeve pipe of steel, casing seat, casing seat hand holding handle, self-locking shell fragment and spacing tooth has solved four weak points that exist in the prior art, accidentally injures function after making the intravenous needle set that anti-puncture vascular function, anti-leakage function, anti-fall function and anti-pin arranged.
Description of drawings
Fig. 1 is the structural representation of the present invention when not using;
Fig. 2 be the present invention in use or the structural representation after using;
Fig. 3 is decomposing state reference diagram of the present invention;
Fig. 4 is 3 A-A cutaway view.
In figure: 1, needle stand; 2, needle stand hand holding handle; 3, needle body; 4, needle body protective sleeve; 5, elasticity connecting 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.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
See also Fig. 1-4, a kind of intravenous pin with the visual blood back function of rapid sensitive comprises needle stand 1, is located at needle stand hand holding handle 2, the needle body 3 on needle stand, the needle body protective sleeve 4 that is sleeved on the needle body outside, elasticity connecting hose 5.Needle stand and needle stand hand holding handle adopt the integrated injection molding structure usually.Wherein the one side of needle stand hand holding handle or two-sided on can be injected with simultaneously anti-skidding bulge-structure, such as point-like projection.The needle body protective sleeve plays intravenous needle Tip protection effect before use.The rear end plug-in mounting of needle body is enclosed in the front end of needle stand admittedly.The front end plug-in mounting of elasticity connecting hose is enclosed in the rear end of needle stand admittedly.The rear end of elasticity connecting hose can be connected with the latter half of intravenous transfusion device and consolidate envelope, forms complete intravenous transfusion device; Also can be connected and consolidate envelope with the latter half of vacuum venous blood-sampling pin, form complete vacuum venous blood-sampling pin.Described elasticity connecting hose and needle stand are made by transparent material, its objective is be used to realizing visual blood back.The cross section of elasticity connecting hose is ellipticity, and namely the elasticity connecting hose is oval pipe.
The elasticity connecting hose adopts oval pipe, and it is than existing circular hose structure, the visual blood back of the rapid sensitive when having realized venipuncture, and its function and principle are specially:
The design is that the student is to once study and the practice process of original innovation.It has utilized circular hose and oval flexible pipe is identical at material, elasticity is identical, wall thickness is identical, girth is identical, length is identical, and under identical condition, intravenous needle is thrust vein blood vessel, and venous pressure is again under identical prerequisite, the practical distortion amount of two flexible pipes really significant difference can occur, 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 flexible pipe, cause endovascular venous pressure significantly greater than the pressure in the oval flexible pipe of this section, form larger pressure differential, so realized that the venous blood in vein blood vessel flows to the long distance of this section transparent visual ellipse flexible pipe rapidly.Purpose and the function of the visual blood back of rapid sensitive have really been realized.The visual length of the blood line through testing its visual blood back can reach 10-30mm.Its advantage is the visual blood back that not only can realize near 100%, and because of its blood back rapid sensitive, the increase at double of blood back visual range and length is also very clear, can make the nurse accomplish to know what is what when operation.Thereby at the mortality of decrease venipuncture with improve on the success rate of venipuncture, played pivotal role.Especially just even more important to young nurses and the difficult blood vessel of pricking of vein of lacking experience.The visual blood back function of this rapid sensitive is on structural design, need not to design 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, in the situation that do not increase any manufacturing cost, bring great convenience really for nurse's successful operation, really realized simple and practical purpose.
on the basis of technique scheme, take into account the WHO of World Health Organization (WHO) about the three elements principle of safety injection (infusion), the present invention is directed to 4 weak points that propose in prior art, improved in the lump, form new technical scheme, and oneself is placed oneself in the midst of enterprise, on tripartite's position of patient and medical care, comprehensively think deeply, repetition test and scientific optimization, realized that the intravenous pin oversimplifies at constructional height, thereby the manufacturing cost of enterprise is significantly reduced, the low cost that had both met medical disposable material, the design principle of low price, created prerequisite for again the market competition and the profit of enterprise, patient and family members' health care expenditures have also been alleviated accordingly.In the consideration that is the nurse, as a retirement old docter of TCM for many years, the work of knowing very well the nurse is the most tired the most arduous, so the present invention has really realized convenient and simple for operation quick, safe and practical, definitely avoided contaminated pinhead, accidentally injured nurse and other people, caused infecting and the risk that infects occurs.Concrete technical scheme of the present invention is: the casing seat 7 that described intravenous pin also comprises the safe sleeve pipe 6 of steel, made by transparent material, be located at the casing seat hand holding handle 8 on casing seat.Casing seat hand holding handle and casing seat integrated injection molding, the one side of casing seat hand holding handle or two-sidedly can be injected with simultaneously anti-skidding bulge-structure wherein is such as the point-like projection.The rear end plug-in mounting of described safe sleeve pipe is enclosed in the front end of casing seat admittedly.Described casing seat coordinates with the coaxial slip plug-in mounting of needle stand.Namely two are designed to the plug-in type sliding matching structure at contacted position, the stability when endwisely slipping along needle stand in order to the reinforcing sleeve base.Be specially, casing seat and needle stand can adopt just to be inserted or two kinds of structures of anti-plug, is positive inserting structure in accompanying drawing, and namely casing seat is inserted in the cavity of needle stand, otherwise also is applicable to the present invention.Described condom pipe box is contained in the needle body outside, and both are axial sliding fit, and the front end face of safe sleeve pipe is flat-head shape.For guaranteeing the precision that safe sleeve pipe coordinates with needle body and avoid burr to scratch blood vessel, the front end face light requirement of safe sleeve pipe is sliding 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 that prevents that casing seat and needle stand break away from.Namely when casing seat moved forward to maximum setting stroke along needle stand, spacing tooth was 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 that needle body breaks away from safe sleeve pipe, thereby thoroughly avoided by the syringe needle of blood contamination nurse or other people accidental injury and infection.Both be convenient to make and assembling, saved again nurse's operation bidirectional, not only simply but also practical.
The plastics Flexible Safety sleeve pipe of above-mentioned safe sleeve pipe and venous detaining needle in the use field, job specification, work characteristics and using method all different.the safety sleeve pipe need select specific steel tubular goods manufacturing to form, it not only can significantly reduce manufacturing cost, and (its cost is less than 1/5 of plastics Flexible Safety sleeve pipe cost, this reduction manufacturing cost and use cost, itself be exactly one of 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 be significantly lower than the wall thickness of the plastics Flexible Safety sleeve pipe 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 round and smooth slight ramp with satisfied chamfering also can be realized in the outer nose circle angle of its tack end face, thereby can significantly reduce the penetration Resistance of intravenous needle, and further alleviate the inserting needle hole surrounding tissue on blood vessel wall and the damage of blood vessel, degree of injury is reduced be reduced to the limit, the blood vessel of protecting to greatest extent patient had remarkable meaning.
When above-mentioned intravenous needle is applied to the vacuum venous blood-sampling field, can smear Medical silicone oil in the gap that is slidably matched between needle body and safe sleeve pipe, the reinforced seal effect, guarantee the positive confinement effect under the negative pressure hemostix state, prevent that air from entering blood, cause the generation of gaseousness pulmonary infarction and the quality of impact blood sampling blood sample.
Above-mentioned improved technical scheme makes the intravenous pin on the basis of realizing the visual blood back of rapid sensitive, has solved simultaneously the deficiency of the four anti-faces of mentioning in the prior art, has had four anti-functions, is specially:
1, anti-puncture vascular function and principle: as the nurse 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 forward inserting needle 5-10mm, prevent that syringe needle from deviating from blood vessel and causing operation failure and some zest medicinal liquid to hypodermic injury and stimulation.Its method is identical with existing traditional method.And be to prevent that the phenomenon of needle pierces blood vessel from appearring in syringe needle in the process that continues inserting needle, the right hand that only needs this moment to hold vein needle stand hand holding handle keeps motionless, make intravenous needle stop inserting needle, then hold the casing seat hand holding handle with left hand, and push away before it is steady, the intravenous needle syringe needle all can be inserted in the tube chamber of safe sleeve pipe, not only prevent the generation of needle pierces blood vessel but also realized rational depth of needle.
2, anti-leakage function and principle: the structure of intravenous needle of the present invention has absorbed the advantage of main flow venous detaining needle, on the cylindrical of needle body with the condom pipe box, though the cutting edge of syringe needle both sides equates substantially with the external diameter of syringe needle, but it is significantly less than the external diameter of safe sleeve pipe, in fact because of the little pin hole on the venous blood tube wall because of on the cylindrical that is enclosed within safe sleeve pipe, therefore cause the pin hole on blood vessel wall that the clamping force of safe sleeve pipe cylindrical is increased, cause the obvious raising of its sealing.Therefore avoid to greatest extent or alleviated some medicinal liquid along the contact site between pin hole and safe sleeve pipe to hypodermic seepage, prevent or alleviated some specific stimulation medicinal liquid to hypodermic stimulation, even causing downright bad generation.Tube wall because of vein blood vessel has certain elasticity and retractility simultaneously, causes the resistance of butt end when intravasation wall pin hole of the safe sleeve pipe of steel to be significantly less than the plastic safety sleeve pipe, and its resistance is almost imperceptible.Both facilitate nurse's normal operating, thoroughly eliminated again patient's discomfort sensation.
3, anti-fall function and principle: except special patient, special disease kind or special circumstances, under normal circumstances, the intravenous needle syringe needle is deviate from, the overwhelming majority is all that blood vessel is difficult to be pricked because running into, blood vessel is straight, blood vessel is meticulous or the reason such as obvious bending, and the young nurses that causes lacking experience is afraid of blood vessel is pierced through and is sent 5-10mm before dare not continuing syringe needle after seeing blood back, make syringe needle arrive endovascular depth desired, cause inserting needle excessively shallow.Syringe needle from the vein pin hole too close to, as long as in the process of transfusion or blood sampling, patient coordinates bad or slight malfunction occurs a little, can cause the needle section of intravenous needle to deviate from blood vessel, venous blood occurs or medicinal liquid enters subcutaneous tissue, and makes transfusion or take a blood sample unsuccessfully.And the present invention is because being designed with the preventing cut through blood vessel function, removed nurse's trouble and worry, can make the nurse relieved bold by operation requirements, the intravenous needle syringe needle has been sent to endovascular depth desired (5-10mm), thereby avoided preferably deviating from of syringe needle, played the Anti-extrusion effect.
4, accidentally injure function and principle after anti-pin: the blood stains syringe needle, accidentally injure nurse and other people, cause infecting or infect and happen occasionally, had a strong impact on nurse and other people physical and mental health.Overcome an above-mentioned difficult problem in the urgent need to a kind of simple and practical solution.Be designed with self-locking shell fragment and spacing tooth because of the present invention on casing seat, and mutually be slidably connected with needle stand, make slip between two in a single day surpass the sliding distance of design code, spacing tooth is about to two and locks firmly and make two can not separate.If started the preventing cut through blood vessel function when venipuncture, make within syringe needle is built in safe sleeve pipe tube chamber.When withdrawal of needle, as long as hold the needle stand hand holding handle or direct pull elasticity connecting hose is extracted intravenous needle, its syringe needle all the time can be in the tube chamber of safe sleeve pipe and avoided because of the generation to nurse and other people accidental injury or infection of the syringe needle that pollutes.If when having run into the vein blood vessel of bundle and patient and can well coordinate again (this kind situation occupies the majority).This moment, the nurse can use the preventing cut through blood vessel function, can get final product according to traditional venipuncture procedure, only need when withdrawal of needle, motionless with left hand fixed cover base or casing seat hand holding handle, the right hand pulls elasticity connecting hose or needle stand hand holding handle, all can be easily with the needle retraction of intravenous needle in the tube chamber of safe sleeve pipe, prevented after the withdrawal of needle by the syringe needle of blood contamination nurse and other people accidental injury and risk infected or infection.
Although above-mentioned intravenous pin with four anti-functions is simple in structure, but do not bias toward solution deficiency in a certain respect, but simultaneously conscientiously take into account the WHO of World Health Organization (WHO) about the three elements principle of safety injection (infusion), formed a kind of to the implementer, to the receiver, to environment and he harmless new product per capita.This product all is better than existing vein blood taking needle at aspects such as comprehensive, comprehensive, complementary, the property taken into account, therefore also is easy to accepted by market and welcome.Also proved simultaneously extremely simple product, too small to the space and be subject to using the product of performance constraint, be difficult to improve or create and improve, the work of more difficult realization crucial touch.Especially the cost consumptive material intravenous needle that can not significantly improve also will be taken into account patient's safety, comfortableness, habituation and the convenience of nurse operation simultaneously, and is just extremely difficult especially.
Above-mentioned total process of assembling with intravenous pin of four anti-functions:
The structure height of this intravenous pin is simple and practical, only need a plug-in type action during general assembly, needle body is inserted in casing seat and safe sleeve pipe, and the insertion connection of two is put in place, general assembly is namely accused and is completed, this moment, the spacing tooth of self-locking shell fragment end automatically locked needle stand, can slide vertically in the distance of setting between having realized two, but can not break away from separately.
Above-mentioned intravenous pin usage with four anti-functions has three kinds, is specifically described as follows:
If 1 has run into the vein blood vessel of bundle and patient can well coordinate again the time, do not need to start the preventing cut through blood vessel function, only need get final product by now traditional vein blood vessel piercing method operation, in other words with the method for puncture striking resemblances of common intravenous needle.Difference, when withdrawal of needle, with left hand fixed cover base or casing seat hand holding handle, the right hand pulls elasticity connecting hose or needle stand hand holding handle, all can easily the intravenous needle needle retraction be arrived in the tube chamber of safe sleeve pipe, prevent from by the syringe needle of blood contamination, nurse and other people accidental injury being caused risk infected or that infect after the withdrawal of needle.Thereby this operational approach and operation principle are also crucial difference or the differences with venous detaining needle.
2, when implementing venipuncture, when run into the difficult blood vessel of pricking or run into can not fine cooperation patient.Can start at once anti-puncture vascular function when seeing blood back, realize vein blood vessel anti-pierced through protection.When transfusion or blood sampling end, it is identical that the method for withdrawal of needle and existing tradition play needle method, do not repeat them here.
3, the nurse is no matter be used for venous transfusion, or vacuum venous blood-sampling, all can carry out venipuncture and withdrawal of needle according to existing traditional method.Only need accidentally injure function after starting immediately anti-pin after withdrawal of needle: the right hand is held the needle stand hand holding handle and is maintained static, left hand hold the casing seat hand holding handle and gently on shift the position onto, the syringe needle of intravenous needle partly can be nested in the tube chamber of safe sleeve pipe, make it and can not expose.Also just thoroughly having avoided nurse or other people and risk infected, that infect being occurred accidentally injuring by the syringe needle of blood contamination occurs.
In a word, but the intravenous pin that originally has four anti-functions really provides a kind of intravenous pin with multioperation method for hard working the nurses of nursing station.Really realized and can in person determine specifically to select which kind of operational approach best by the nurse according to the difficulty of venipuncture, the quality of patient's cooperation and nurse's technical merit and custom, thoroughly having changed for many years, the nurse be the situation of passive execution.Facilitating on the basis of nurse operation, realizing the final purpose to patient, nurse and other people omnibearing protection.
Claims (2)
1. the intravenous pin with the visual blood back function of rapid sensitive, comprise needle stand, be located at needle stand hand holding handle, the needle body on needle stand, the needle body protective sleeve that is sleeved on the needle body outside, elasticity connecting hose; The rear end plug-in mounting of needle body is enclosed in the front end of needle stand admittedly, the front end plug-in mounting of elasticity connecting hose is enclosed in the rear end of needle stand admittedly, the rear end of elasticity connecting hose is connected with the rear portion of intravenous transfusion device and consolidates envelope or be connected and consolidate envelope with the rear portion of vacuum venous blood-sampling pin, and it is characterized in that: described elasticity connecting hose and needle stand are made by transparent material; The cross section of elasticity connecting hose is ellipticity.
2. the intravenous pin with the visual blood back function of rapid sensitive according to claim 1 is characterized in that: the casing seat that described intravenous pin also comprises the safe sleeve pipe of steel, made by transparent material, be located at the casing seat hand holding handle on casing seat; The rear end plug-in mounting of the safe sleeve pipe of described steel is enclosed in the front end of casing seat admittedly; Described casing seat coordinates with the coaxial slip plug-in mounting of needle stand; Described steel condom pipe box is contained in the 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 the self-locking shell fragment, and the rear inside face of self-locking shell fragment is provided with the spacing tooth that prevents that casing seat and needle stand break away from.
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| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
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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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| CN103110998A true CN103110998A (en) | 2013-05-22 |
| CN103110998B CN103110998B (en) | 2015-12-23 |
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Cited By (3)
| 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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| 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 |
Cited By (3)
| 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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