CN106963395A

CN106963395A - Triggering safe hemostix blind can be held with percussion perceptional function

Info

Publication number: CN106963395A
Application number: CN201710230826.0A
Authority: CN
Inventors: 王振民; 刘玉花; 王伟; 王鸿; 王浩阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-10
Filing date: 2017-04-10
Publication date: 2017-07-21

Abstract

Triggering safe hemostix, including overcoat, percussion set, blood taking needle, upper lid blind can be held with percussion perceptional function；It is upper to cover the upper port for being packed in overcoat；The inner chamber of overcoat is logical direct light face chamber, and sleeve side wall perceives solution lockhole provided with a pair or in two couples percussion of 90 ° of angles；Percussion set epimere is slidable in the vertical direction coordinating and being circumferentially limited with overcoat inner chamber, and the percussion set that percussion set hypomere is covered with overcoat on bottom stretches out hole and freely inserts cooperation, and percussion set is elastic opening set, and percussion puts raised provided with a pair of unblocks；The lateral surface of blood taking needle needle handle is connected with elastic firing member provided with a pair of guide protrusions between needle handle and upper lid；Blood taking needle be in treat under cock, percussion set epimere cover outside in be resilient draw in shape, blood taking needle be supported in percussion set upper end；Blood taking needle is under cock, and two unblock projections are up to be slided into two percussions perception solution lockhole respectively, percussion is covered spreading and is resetted, blood taking needle edge fires set and moved towards needle outlet direction.This hemostix has percussion perceptional function, blind dress can be achieved.

Description

Triggering safe hemostix blind can be held with percussion perceptional function

Technical field

It is espespecially a kind of that there is percussion perceptional function the present invention relates to the medical instruments field of medical and clinical blood sampling chemical examination detection It blind can hold triggering safe hemostix.

Background technology

" disposable safe hemostix " is also referred to as " disposable safe blood taking needle ", is countries in the world medical science, is sent for clinical end The main blood taking instrument of blood sampling chemical examination.It is easy to carry because it has, easy to operate, sterilization is thorough, and aseptic is strong, and doctor can be avoided again The advantages of source sex-intergrade is infected, therefore since the advent of the world, receive the extensive welcome of doctor and patient.But it is used as each of main product " lower triggering disposable safe hemostix ", the first element except all can preferably complete blood sampling are planted, and is all had respective Advantage speciality, this is also that every kind of product has the major reason of certain occupation rate of market.But to develop from society, science and technology will be entered Said in step, the angle that product will be perfect, every kind of existing product or Patent design all also have a little weak point.This is to include The product of each enterprise in the industry, also includes the patented product that I researches and develops, though all having major function, also all there are different U.S.s Middle not enough or flaw.Because of each specific research staff, objectively saying all has certain thinking limitation, knowledge limitation With experience limitation, often attend to one thing and lose sight of another and lose and gain, this is also fully consistent with the evolutional view of development；Along with " disposable The Special use attribute of safe hemostix ", i.e., on the premise of ensureing blood sampling function and being easy to medical personnel to operate, also requiring should Product must have extremely low market Fight prices unexpectedly, therefore it is required that its manufacturing cost is more low better, structure is more simple better, component It is to lose cost advantage and can not participate in market competition when more few better (Dang Group parts are equal to 7 or more than 7), and because of group Dress up this and occupy very important position in the product, therefore assembling is more simple better, The faster the better for speed, in a word, one It is individual to require that structure has been simplified to ultimate attainment medical disposable material product, in the case where New Parent mustn't be increased, also want and therefore many Kind of function with require, realize further optimization design and reconfigure be really it is too difficult too difficult, just carried out by：" ridge is just under Mo Yan Without difficulty, earn passerby's mistake and like.Just entering in the circle of the Wanshan Mountain, a mountain is let off a mountain and blocked ".

The professional R ＆ D design personnel of enterprise are to learn work mostly in the industry now, and the amateurish research staff of medicine and hygiene fieldses Study medicine more, therefore in An Caizhen research and development, both often occur that work less understands doctor or understands doctor not for different degrees of understanding The professional limitation of work too moving to and fro.Work was learned as one, learned again and cures and research and develop the retired old docter of TCM that peace adopts pin more than two decades, Student oneself just thinks of bowing pulling a cart thoroughly to change, no matter looking up the deficiency on road, feels deeply and only relies on the limitation knowledge of oneself and warp Test, want to develop and take into account various requirement and the fairly perfect peace of function and adopt pin new varieties, it is necessary to which existing various peaces are adopted Pin and adopt the patent document of pin about various pacify, try one's best to grind and understand and have thorough grasp, it is concurrent it is existing various problems and shortcomings, New product can be researched and developed comprehensively on this basis, and make the new product really distillation with matter, in other words, when student has used nearly 2 years Between, it will control oneself and step down on the shoulder of every industry peer with all strength and absorb their elite, evaded their deficiency, just made The new design controlled oneself realizes qualitative leap (especially in propria persona researching and developing by percussion set opening and closing, to realize blood taking needle needle handle Locking with percussion function patent or product be markedly improved and improve).Here there is their arduous and contribution, herein Sincere thanks are represented in the lump.Pin product and relevant China and foreign countries' patent document are adopted to existing various peaces below, what is existed is various The brief summary that deficiency is carried out, the brief summary and this application article, though oneself high energy of student's age is limited, but have passed through repeatedly Modification with arrange, its purpose except to control oneself and the respect of teacher auditor in addition to, it is important to want mitigate teacher auditor work The idle work measured and mitigate teacher auditor is paid.Its specific manifestation is as follows：

First, existing various lower triggering safe hemostixes, pressure size influences under not only there is triggering when taking a blood sample operation The positive relationship for tenderness of taking a blood sample, the sense of touch of medical personnel perceives not good or unaware general character when also there is percussion, especially in ring Border is not good or patient's fear is mismatched or affected children ranges are cry and screamed it is ill-matched in the case of there is instinct self-insurance draw back finger act Dynamic, it is difficult percussion success or not phenomenon when perceiving light pressure blood sampling to cause medical personnel, often occurs that blood taking needle is not fired also But because medical personnel can not perceive whether percussion process completes, the termination with regard to blindness is taken a blood sample, and blood taking needle is prematurely popped out blood sampling portion Position and cause this time blood sampling failure.If other firmly depressed fast, though can ensure disposably to fire successfully, but can cause and hit Tenderness (is described, under the premise of blood taking needle constant mass, by blood sampling portion with skin serious pitting modification pain from physics under hair net The pressure size of position pushes speed depending on blood taking needle), and most products of reality are fired successfully for guarantee, its percussion is cased with Meaning also retains a certain distance after being designed to percussion set retraction with overcoat lower surface, i.e., tangible percussion set return and overcoat lower surface Maintain an equal level, the conjunction of the area of two sets of lower ends is also limited, and the pitting modification pain that generation is pushed to eliminating exertin is also limited It is even negligible.Again because the anatomicophysiological evolution of finger pulp needs, enter to turn to protuberance again on limited finger pulp area Shape, causes to form a kind of point-like contacts of expansion with touched thing, and this is also to be difficult to eliminate the pitting change that exertin pushes generation The another odjective cause of type pain.Or unaware during because of percussion, although An Caizhen is fired finish already, and medical personnel also suppress peace Adopt pin not put, and further result in by the meaningless tenderness of blood sampling site.In addition, being learnt through clinical observation for many years, for children Or infant's blood sampling, because the too tender reverse resistance caused to blood taking needle of its finger pulp is too small, if exertin pushes blood taking needle and will gone out The existing too deep phenomenon of obvious inserting needle, its consequence not only occurs that lower tenderness there is also the pin hole pain up to 1-12 hours, and right When the finger pulp blood sampling of adult especially physical labourer, must just exert oneself depressed fast, otherwise will be led because inserting needle is excessively shallow Cause the not enough not even bleeding of blood sampling volume.So, how to make medical personnel be adopted from existing passive blood sampling distillation for active Blood and blood sampling when, it is small greatly that whether the lower pressure of blood taking needle, which is, and it is slow soon that speed, which is, and whether environment quiet, and whether patient Chemically examined needed for coordinating accurate perception when can accomplish 100% percussion, and the age according to patient, sex, occupation, this blood sampling The blood sampling volume size of project and the concrete condition of finger pulp skin, and according to accurate percussion perceptional function, pushed using different Power, push the length of speed and pressing time to realize optimal blood sampling effect, it is just particularly important, it is also that what is solved be badly in need of in enterprise Realistic problem.

Principle analysis：The triggering mode of existing various lower triggering safe blood-taking needles, is all by blood taking needle overcoat lower end Percussion set first contacted with finger pulp loss skin, and force in blood taking needle overcoat and power will be pushed by blood taking needle overcoat and be applied to Percussion is put, because finger pulp loss skin is that blood sampling site is the fulcrum force that percussion covers again, when percussion set lower surface is pressed in finger On abdomen skin, the increase with the lower pressure of percussion set can cause skin depressions modification, when this pitting modification of skin terminates When, it may result in finger pulp skin and give percussion one upward reaction force of set, here it is the active force in physics and anti-work Use force phenomenon.And as percussion set is up to the lasting retraction of overcoat inner chamber, it is final to realize percussion and complete blood sampling purpose.But this In again simultaneously exist another physical phenomenon, exactly percussion set press to finger pulp skin speed it is faster, may result in finger pulp skin Pressure it is bigger (this is similarly more greatly with the higher impact of car speed), its result just occur blood sampling site skin occur it is bright Aobvious lower tenderness, especially some safe blood-taking needles percussion spring it is really up to the mark or percussion set lower surface area it is too small when ( The area of percussion set lower surface is smaller on the premise of pressure is constant, and person's pressure is bigger), being reacted to the blood sampling finger of patient will feel To more pain, obvious pitting skin modification and of short duration Continuous Pain phenomenon now occur in finger pulp.Conversely, when blood taking needle Push speed it is slower when, caused lower tenderness will be lighter or even without tenderness because reducing impulsive force reason in blood sampling by patient.

And existing various lower main causes of the triggering safe hemostix without percussion perceptional function is caused, specifically there are two sides Face：

1) because existing safe hemostix is all made up of high polymer material (being commonly called as plastics).Because such material is to sound Conduction and resonating effect extreme difference, therefore have being commonly called as mute's material.Vibration when it is to percussion has excellent weakening with sounding With the absorbability to sound, so be difficult then clearly to be transmitted to outside blood taking needle on set in the percussion that overcoat inner chamber occurs, so It is difficult accurately to be perceived by the finger pulp skin of medical personnel.

2) because the trigger method of lower triggering safe hemostix causes, it is by medical care people unlike upper triggering safe hemostix The finger pulp of member directly pushes lid in the triggering of triggering safe hemostix and completes percussion, also unlike side triggering safe hemostix is By the finger pulp of medical personnel, directly push the triggering button of other triggering safe hemostix and complete percussion.This two kinds of percussion sides Though method is different, the slight vibration of generation can be directly transmitted to doctor by trigger cap or triggering button when directly triggering The sensory nerve ending of shield personnel's finger pulp, and the finger of medical personnel is accurately directly perceived, rather than lower triggering safety The vibration that the trigger method of hemostix triggers is entirely indirect and causes to perceive difficult.

Two, are as " the lower trigger-type disposable safe hemostix " of main product, and its manufacturing cost of generally existing is higher Weak point, the mainly product are the labor-intensive enterprise with the characteristics of man-made assembly mostly, and because assembling is laborious time-consuming, and it is bright It is aobvious to add assembly cost.And cause the obvious increased basic reason of assembly cost still to go out in research and development with design, being specially：

1) only lock and the firing lock of blood taking needle, in design because of excessively complicated and inconvenience assembling again.Cause assembly program Not only bothersome but also trouble, is also the major reason for most expending assembling man-hour.For example write " the lower triggering that bright U.S. company BD is produced The assembling of " lock unlinks " of formula safe blood-taking needle "；Chinese patent application：2010 2012 0291.5；Chinese patent：CN 0322 1437.5Y；Chinese patent：CN 2516 098Y；Chinese patent：CN2579 344Y；Chinese patent：2619583Y；It is Chinese special Profit：CN2009 45164Y；Chinese patent：CN2013 79576Y.

2) existing lower triggering safe hemostix, majority is all existed, to ensure percussion set and hemostix overcoat inner chamber Snug sliding fit, prevents percussion set and the shadow without the nondirectional axial displacement of constraint and lateral displacement of hemostix overcoat inner chamber The actual functional capability and effect of sound blood sampling, and the product structure design for employing slideway stopper slot and slideway limit rib being forced.This The required precision that although structure ensure that percussion function is planted, but very burden and difficulty are brought to assembling procedure, causes to slide Road stopper slot can not realize disposable rapid-aligning with slideway limit rib (equivalent to the dovetail and dovetail groove of tradition machinery), finally As a result packaging efficiency is just reduction of, assembly cost is added.

3) being particularly a products of Tianjin China letter research and development, just more prominent (see CN201210080546.3, the product is Secondary development on my original patent basis, specific visible patent No. CN201010574540.2), the product is opened by percussion set The locking for closing to realize blood taking needle needle handle and percussion function, are adopted because the intracavity space of the first half of hemostix overcoat is all significantly greater than The intracavity space of the lower half of blood device overcoat, thus assembling when, exist percussion set first insert overcoat top when, because percussion set with The gap of hemostix overcoat inner chamber is excessive, percussion set non-control free love is occurred and swings and displacement, and then causes percussion set can not The disposable chute type two for being properly inserted hemostix overcoat lower half inner chamber is realized in limit rib or limiting stand, to quick group Dress brings difficulty, and result in dramatically increasing for assembling man-hour, and then virtually adds assembly cost, makes total manufacturing cost It is too high.

And all interrogated according to south, in population fertility political affairs, " if the policy of maintenance is constant, by 2099,21 century Mo was Chinese 60 years old And the proportion of above elderly population number will be up to 40.15%, 15-59 Sui working-age population and bring up 60 years old and above elderly population Proportion will be up to 83.22% ".China's labouring population are quickly being reduced, and national working-age population is reduced than last year within 2012 3450000 people, national working-age population reduces by 2,440,000 people than last year within 2013.Found according to newest investigation, with China human mortality The disappearance of bonus, China southeast coastal industry developed regions occur in that different degrees of recruitment is waste, cause the increase of recruitment emolument It is too fast, monthly salary of its most occupation than 10 years before there is one times to several times upper long.For example：1.2 ten thousand yuan of hand-pulled noodles teacher monthly pay； 8000 yuan of Bus driver monthly pay；8000 yuan of porter's monthly pay；Mix 6000 yuan of cold dish master worker monthly pay；Less use and carry the moon that what's frequently heard can be repeated in detail Sister-in-law, express delivery person cross blue collar labourer's wage of the ten thousand present many industries in Beijing of income ... easily, already beyond common white collar Wage.New blue collar has arrived in the epoch.Because of the quick increase of recruitment cost, especially as this labour intensive of ending blood taking needle Type enterprise, because by hand assembling cost more and more higher, this to such enterprise participate in World Economics competition in terms of bring compared with Big price inferior position.

Therefore, structure improvement and optimization are carried out to existing lower trigger-type disposable safe hemostix, it is difficult to reduce assembling Degree, saving assembling man-hour and raising packaging efficiency, so as to reduce the manufacturing cost of hemostix, study and produce as hemostix Trend of the times.In addition, in the new lower trigger-type disposable safe hemostix of design, also the design of suitable automatic assembling It is that the automatic assembling in future lays solid structural basis in advance it is required that taking into account.And in the long term, it is impossible to realize certainly The product of dynamicization assembling is definitely not have vital, the fierce market competition of basic impotentia participation.

3rd, present safe hemostix product, including upper triggering safe hemostix, lower triggering safe hemostix and side Safe hemostix is triggered, in actually blood sampling, mitigation inserting needle that can only be different degrees of is difficult to accomplish really painless adopt bitterly, but Blood.But the painless blood sampling of real hommization is realized, storming strongholds in defiance of difficulties for numerous research staff in the industry is also needed.

The content of the invention

Present invention technical problem present in solution known technology provides one kind, and there is percussion perceptional function blind can fill Lower triggering safe hemostix, the hemostix when blood taking needle is fired, medical personnel have clearly fires perceptional function, medical care Personnel can be according to actual blood sampling to concrete conditions such as the age of picture, sex, the professional thin and thicks with being adopted finger pulp skin, using difference Touch pressure or press again, accurate control of the speed that the presses selection with pressing the time；The hemostix is in assembling, without deliberately Centering position, can be achieved quick assembling, improves packaging efficiency, built-up time, reduction assembly cost saved, also because of simple and safe height Effect thus be more suitable for blind person complete assembly working.

The present invention first technical scheme for being taken of technical problem present in solution known technology is：

Triggering safe hemostix, including overcoat, percussion set, blood taking needle, upper lid blind can be held with percussion perceptional function And needle sterile protective cap, it is characterised in that：

The upper end of overcoat is lid installing port in openend, composition, and the upper lid is packed at lid installing port；Under overcoat End forms spacing interior table top provided with set bottom between set bottom and sleeve side wall, and hole is stretched out provided with percussion set on set bottom；Overcoat it is interior Chamber is logical direct light face chamber, and the inner chamber of overcoat is for cylindroid inner chamber or by the loose face of a pair of opposing and a pair of opposing Leptoprosopy is formed；A pair of percussions positioned opposite are provided with sleeve side wall and perceive solution lockhole；

The percussion set is plugged in overcoat, and percussion set is made up of two parts of percussion set epimere and percussion set hypomere, is hit The cross section of hair net epimere is more than the cross section of percussion set hypomere, percussion is covered between epimere and percussion set hypomere and forms spacing outer Table top；Percussion set epimere is formed along the vertical direction with overcoat inner chamber to be slidably matched, and is constrained by overcoat inner chamber, is circumferentially limited Position；Fire set hypomere and percussion set stretching hole forms and freely inserts cooperation；It is provided with the side wall of percussion set positioned opposite A pair of vertical guide grooves, vertical guide groove is connected with the upper end of percussion set, makes percussion cover to form elastic opening nested structure, on percussion set End sidewalls are externally provided with a pair of unblock projections positioned opposite, and it is in that 90 ° of angles are arranged with vertical guide groove to unlock raised, is firing set Bottom be provided with needle outlet；

The blood taking needle forms inserting with percussion set and is connected, and blood taking needle is made up of needle handle and stainless pin, in the outer of needle handle It is provided with a pair of guide protrusions blocks positioned opposite on side, the body sections of stainless pin are even noted in needle handle, stainless pin Needle portion stretched out from the front end of needle handle, flexible firing member is connected between needle handle and upper lid；

In the case where blood taking needle is in and treats cock, percussion set is located at the lower working position in overcoat, fires put spacing outer Table top is contacted with the spacing interior table top formation put outside, percussion set epimere cover outside in be resilient drawing shape in, make two vertical guide grooves Up-narrow and down-wide cone tank is collapsed into, percussion set hypomere stretches out hole from percussion set and stretched out；A pair of guide protrusions blocks point on needle handle Upper end not with two vertical guide grooves of percussion set is in contact, and blood taking needle is supported in the upper end position of percussion set, needle portion Company is noted in needle sterile protective cap；

It is in blood taking needle under cock, the front end face formation dialysis of needle sterile protective cap and needle handle makes needle section Exceptionally reveal, the upper working position that percussion set is gone upward in overcoat, the two unblock projections that percussion is put are up respectively to slide into outer put Two percussion perceive solution lockholes in and form spacing, make percussion cover spreading reset, effect of the blood taking needle in elastic firing member Lower edge percussion set forms linearity with percussion set inner chamber and is slidably matched towards the movement of needle outlet direction, needle handle, two guiding on needle handle The two vertical guide groove formation that protruding block is put with firing are slidably matched.

It is preferred that：The overcoat covers for ellipse, and the percussion set epimere is that the ellipse coordinated with overcoat inner chamber covers, institute It is to cover the circular set that epimere is coaxially disposed with percussion to state percussion to cover hypomere, and the external diameter of percussion set hypomere covers epimere less than percussion Minor axis length, the percussion set stretches out the circular port that Kong Weiyu percussion set hypomeres match.

It is preferred that：The needle sterile protective cap is connected and composed by two independent bulk-breakings of hand-held cap and Tip protection bar；Hand The lateral surface for holding cap is elliptic cylinder and consistent with the lateral surface shape of overcoat；The lumen orifice of hand-held cap is cylindrical hole, hand-held The periphery that the upper end of cap is located at lumen orifice is provided with upper edge；Internal projection locating piece, internal projection are connected with the cap bottom of hand-held cap Locating piece is provided with jack, and the leading section of Tip protection bar is plugged in jack to be connected with the formation of hand-held cap；It is in blood taking needle Treat under cock, Tip protection bar is through the needle outlet of percussion set bottom, and the needle portion of stainless pin is even noted protects in syringe needle In guard bar, hand-held cap is set in outside percussion set hypomere from the bottom to top, and the upper edge of hand-held cap is with being arranged on overcoat set bottom Annular groove formation inserting connection.

It is preferred that：The overcoat is rectangle set, and the percussion set epimere is the rectangle set coordinated with overcoat inner chamber, institute It is square sleeve to state percussion set hypomere, and the percussion set stretches out the square opening that Kong Weiyu percussion set hypomeres match.

It is preferred that：The needle sterile protective cap is connected and composed by two independent bulk-breakings of hand-held cap and Tip protection bar；Institute Hand-held cap is stated to be covered part, the inserting post being arranged on inside opening sleeve set bottom by U-shaped opening and be arranged on outside opening sleeve set bottom Flat hand-held handle portion is constituted, and jack is provided with slotting shape post, and the leading section of Tip protection bar is plugged in jack and hand-held cap Form connection；In blood taking needle under cock is treated, Tip protection bar covers the needle outlet of bottom through percussion, stainless pin Needle portion is even noted in Tip protection bar, and the U-shaped opening set part of hand-held cap is set in the two of percussion set hypomere from the bottom to top Outside side.

It is preferred that：The elastic firing member use tension and compression combined type spring, its by integrally connected extension spring section and stage clip Section is constituted.

It is preferred that：Fire the two vertical guide grooves put and formed by the upper end of a pair of tapered guide surfaces and percussion set and connected Logical, the lower end of a pair of guide protrusions blocks on needle handle uses arc surface structure, in blood taking needle under cock is treated, is oriented to The arc surface of protruding block is contacted with the tapered guide surface formation of the vertical guide groove upper end of correspondence.

The present invention second technical scheme for being taken of technical problem present in solution known technology is：

The upper end of overcoat is lid installing port in openend, composition, and the upper lid is packed at lid installing port；Under overcoat End forms spacing interior table top provided with set bottom between set bottom and sleeve side wall, and hole is stretched out provided with percussion set on set bottom；Overcoat it is interior Chamber is the square logical direct light face chamber in cross section；Two pairs of each percussions positioned opposite are provided with sleeve side wall and perceive unblock Hole, one pair of which percussion perceives solution lockhole and is arranged on one group of relative side of overcoat, and another pair percussion perceives solution lockhole and set On another group of relative side of overcoat；

The percussion set is plugged in overcoat, and percussion set is made up of two parts of percussion set epimere and percussion set hypomere, is hit The cross section of hair net epimere is more than the cross section of percussion set hypomere, percussion is covered between epimere and percussion set hypomere and forms spacing outer Table top；Percussion set epimere is formed along the vertical direction with overcoat inner chamber to be slidably matched, and is constrained by overcoat inner chamber, is circumferentially limited Position：Fire set hypomere and percussion set stretching hole forms and freely inserts cooperation；It is provided with the side wall of percussion set positioned opposite A pair of vertical guide grooves, vertical guide groove is connected with the upper end of percussion set, makes percussion cover to form elastic opening nested structure, on percussion set End sidewalls are externally provided with a pair of unblock projections positioned opposite, and it is in that 90 ° of angles are arranged with vertical guide groove to unlock raised, is firing set Bottom be provided with needle outlet；

The blood taking needle forms inserting with percussion set and is connected, and blood taking needle is made up of needle handle and stainless pin, in the outer of needle handle It is provided with a pair of guide protrusions blocks positioned opposite on side, the body sections of stainless pin are even noted in needle handle, stainless pin Needle portion stretched out from the front end of needle handle；Flexible firing member is connected between needle handle and upper lid；

In blood taking needle under cock is treated, percussion set is located at the lower working position in overcoat, and percussion covers epimere and covered outside Inside it is resilient drawing shape in, two vertical guide grooves is collapsed into up-narrow and down-wide cone tank, fires the spacing outer table top and overcoat put On spacing interior table top formation contact, percussion set hypomere stretches out hole from percussion set and stretches out；A pair of guide protrusions blocks point on needle handle Upper end not with two vertical guide grooves of percussion set is in contact, and blood taking needle is supported in the upper end position of percussion set, needle portion Company is noted in needle sterile protective cap；

It is in blood taking needle under cock, the front end face formation dialysis of needle sterile protective cap and needle handle makes needle section Exceptionally reveal, the upper working position that percussion set is gone upward in overcoat, the two unblock projections that percussion is put are up respectively to slide into outer put A pair of percussions on two respective side walls perceive in solution lockhole and form spacing, percussion is covered spreading and reset, blood taking needle is hit in elasticity Moved in the presence of hair component along percussion set towards needle outlet direction, needle handle forms linearity with percussion set inner chamber and is slidably matched, pin The two vertical guide groove formation that two guide protrusions blocks on handle are put with firing are slidably matched.

It is preferred that：The overcoat is square overcoat, and the percussion set epimere is the square matched with overcoat inner chamber Set, the percussion set hypomere is square sleeve, and the percussion set stretches out the square opening that Kong Weiyu percussion set hypomeres match.

The present invention has the advantages and positive effects of：

1st, the inner chamber of overcoat is using logical direct light face chamber in the present invention, and the lateral surface of percussion set epimere is used and overcoat inner chamber edge Above-below direction slidably and the fit shapes that are circumferentially limited, so, when the hemostix is assembled, will percussion set it is directly slotting Enter into overcoat, without deliberately centering position, it uses guiding rib and guide slide compared between existing overcoat and percussion set Fit structure, realize and quickly assemble, improve packaging efficiency, save built-up time, assembly cost reduced, also because of letter It is single safe and efficient thus be more suitable for blind person and complete assembly working.

2nd, in clinic blood sampling, medical personnel are touched a pair of the percussions put outside hemostix by finger and perceive solution lockhole Place, when being advanced into percussion perception solution lockhole in unblock projection, you can by the sensory nerve of finger pulp, raised to unblock is up Accomplish clear perception with moment percussion, really realize with triggering perceptional function.So, medical personnel can be according to actually adopting The concrete conditions such as thin and thick of the blood to the age of picture, sex, occupation with being adopted finger pulp skin, are pressed or are touched again using different touching Accurate control of the speed selection press, pressed with pressing the time, reaches preferably blood sampling effect.

3rd, overcoat inner chamber uses above-mentioned fit structure with percussion set epimere, and sets a pair of unblocks raised on percussion set, So, when assembling hemostix, by the extruding that overcoat inner chamber is raised to two unblocks, percussion set is made to draw deformation in, by blood taking needle The upper end of percussion set is supported on, only locking for blood taking needle is realized；When firing blood sampling, by two unblocks it is raised it is up drop into it is outer Two percussions put are perceived in solution lockhole, and percussion set spreading resets, and realizes the unblock of blood taking needle.Above-mentioned only lock and unlocking manner knot Structure is simple, has been also convenient for the assembling of hemostix.

Brief description of the drawings

Fig. 1 is longitudinal sectional view of the first embodiment of the invention under blood sampling state to be fired；

Fig. 2 is dimensional structure diagram of the first embodiment of the invention under blood sampling state to be fired；

Fig. 3 is Fig. 2 three-dimensional exploded view；

Fig. 4 is longitudinal sectional view of the first embodiment of the invention under percussion blood sampling state；

Fig. 5 is dimensional structure diagram of the first embodiment of the invention under percussion blood sampling state；

Fig. 6 is dimensional structure diagram of second of the embodiment of the invention under blood sampling state to be fired；

Fig. 7 is dimensional structure diagram of second of the embodiment of the invention under percussion blood sampling state；

Fig. 8 is Fig. 6 three-dimensional exploded view；

Fig. 9 is dimensional structure diagram of the third embodiment of the invention under blood sampling state to be fired；

Figure 10 is dimensional structure diagram of the third embodiment of the invention under percussion blood sampling state；

Figure 11 is Fig. 9 three-dimensional exploded view.

In figure：1st, overcoat；1-1, spacing interior table top；1-2, percussion set stretch out hole；1-3, percussion perceive solution lockhole；2nd, fire Set；2-1, percussion set epimere；2-2, percussion set hypomere；2-3, spacing outer table top；2-4, vertical guide groove；2-5, unblock are raised；2- 6th, needle outlet；2-7, tapered guide surface；3rd, blood taking needle；3-1, needle handle；3-2, stainless pin；3-3, guide protrusions block；4th, upper lid； 5th, needle sterile protective cap；5-1, hand-held cap；5-1-1, upper edge；5-1-2, internal projection locating piece；5-2, Tip protection bar；6、 Tension and compression combined type spring；1 ', overcoat；1-3 ', percussion perceive solution lockhole；2 ', percussion set；2-1 ', percussion set epimere；2-2 ', hit Hair net hypomere；3 ', blood taking needle；3-1 ', needle handle；4 ', upper lid；5 ', needle sterile protective cap；5-1 ', hand-held cap；5-2 ', syringe needle Guard bar；5-1-1 ', U-shaped opening set part；5-1-2 ', inserting post；5-1-3 ', flat hand-held shank；1 ", overcoat；2 ", fire Set；1-3 ", percussion perceive solution lockhole；2-1 ", percussion set epimere；2-2 ", percussion set hypomere.

Embodiment

In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing Describe in detail as follows：

Embodiment 1：

Fig. 1-5 are referred to, triggering safe hemostix, including overcoat 1, percussion set blind can be held with percussion perceptional function 2nd, blood taking needle 3, upper lid 4 and needle sterile protective cap 5.

The upper end of overcoat is lid installing port in openend, composition, and the upper lid is packed at lid installing port.Shang Gai with it is outer Upper lid and the connection of overcoat upper port of the connected mode of port with reference to existing lower triggering safe hemostix are put, such as, upper The skirt oral area of lid outer rim sets raised ribs, and opening end medial surface sets the groove matched with raised ribs to be consolidated after overcoat Fixed connection.The lower end of overcoat forms spacing interior table top 1-1 provided with set bottom between set bottom and sleeve side wall, is provided with and hits on set bottom Hair net stretches out hole 1-2.The overcoat covers for ellipse, and the inner chamber of overcoat is the logical direct light face chamber of elliptic cylindrical shape, leads to direct light face chamber The inner chamber for referring to overcoat is to lead to straight chamber and internal chamber wall is smooth surface wall, i.e., without guide protrusions muscle on the internal chamber wall of overcoat, also without leading To groove.A pair of percussions positioned opposite are provided with sleeve side wall and perceive solution lockhole 1-3, specifically, percussion perceives unblock Hole may be provided at end positions of the cylindroid inner chamber along long axis direction, may also be arranged on two ends of the cylindroid inner chamber along short-axis direction Position.

The percussion set is plugged in overcoat, and percussion set is by percussion set epimere 2-1 and percussion set hypomere two part structures of 2-2 Into.Percussion set epimere is that the ellipse coordinated with overcoat inner chamber covers, and percussion set hypomere is the circle being coaxially disposed with percussion set epimere Column sleeve structure, and the external diameter of percussion set hypomere is less than the minor axis length that percussion covers epimere, i.e. the cross section of percussion set epimere is more than The cross section of percussion set hypomere, makes percussion cover between epimere and percussion set hypomere and forms spacing outer table top 2-3.Percussion set epimere with Overcoat inner chamber is formed along the vertical direction to be slidably matched, and percussion set epimere is constrained by overcoat inner chamber, is limited along oval circumference. Percussion set hypomere stretches out hole with percussion set and is formed and freely insert cooperations, because percussion covers hypomere for cylinder nested structure, therefore fires Set stretch out hole most preferably be shaped as circular port.The vertical guide groove 2-4 of positioned opposite a pair is provided with the side wall of percussion set, is erected Connected to guide groove with the upper end of percussion set, make percussion cover to form elastic opening nested structure.End sidewalls are externally provided with percussion set A pair of unblock projection 2-5 positioned opposite, unblock is raised can be using longitudinal section unblock bulge-structure triangular in shape, i.e., along percussion The upper end of set to lower extreme direction, the raised lateral surface of unblock is set in tilted.But the raised shape of unblock is not limited to above-mentioned shape Shape, as long as when percussion set insertion is installed into overcoat, the smooth installation of percussion set can be realized and drawn in, in addition, being adopted in percussion During blood, unblock projection can slide into respective side percussion perceive solution lockhole in and realize it is spacing, it is such unblock bulge-structure it is equal It is applicable.Unblock is raised to arrange with vertical guide groove in 90 ° of angles.Needle outlet 2-6 is provided with the bottom of percussion set.

The blood taking needle forms inserting with percussion set and is connected, and blood taking needle is made up of needle handle 3-1 and stainless pin 3-2, needle handle It is general to use medical plastic injection molding, such as medical PP, ABS etc..Positioned opposite one is provided with the lateral surface of needle handle To guide protrusions block 3-3.The body sections of stainless pin are even noted in needle handle, and the needle portion of stainless pin is from the front end of needle handle Stretch out.Flexible firing member is connected between needle handle and upper lid, specifically, the upper end of elastic firing member is fixed with upper lid Connection, the bottom of elastic firing member is fixedly connected with the upper end of needle handle.

The inner chamber of above-mentioned overcoat uses what is coordinated with overcoat inner chamber using logical direct light face chamber, the percussion set epimere of elliptic cylindrical shape Ellipse set, the position setting close to upper end on sleeve side wall a pair of percussions positioned opposite perceive solution lockhole and covered in percussion Positioned opposite a pair are set to unlock the raised innovative point waited as the present embodiment outside the wall of upper end side, in addition, the wound of the present embodiment New point also resides in following two working conditions：

In blood taking needle under cock is treated, percussion set is located at the lower working position in overcoat, and percussion covers epimere and covered outside Inside it is resilient drawing shape in, two vertical guide grooves is collapsed into up-narrow and down-wide cone tank, fires the spacing outer table top and overcoat put On spacing interior table top formation contact, percussion set hypomere stretches out hole from percussion set and stretches out；A pair of guide protrusions blocks point on needle handle Upper end not with two vertical guide grooves of percussion set is in contact, and blood taking needle is supported in the upper end position of percussion set, needle portion Company is noted in needle sterile protective cap, so, can realize sterile sealing to syringe needle.

Be in blood taking needle under cock, the front end face of needle sterile protective cap and needle handle formation dialysis, i.e. syringe needle without Bacterium protective cap is twisted off, and makes needle portion exposed, the upper work that percussion set is gone upward in overcoat, fires two unblocks put raised It is up respectively to slide into the two percussion perception solution lockholes put outside, and form spacing, percussion is covered spreading and reset, blood taking needle Moved in the presence of elastic firing member along percussion set towards needle outlet direction, needle handle forms linearity with percussion set inner chamber and slided Coordinate, the two vertical guide groove formation that two guide protrusions blocks on needle handle are put with firing are slidably matched.

In the present embodiment, the preferred structure of the needle sterile protective cap is：

Connected and composed by two independent bulk-breakings of hand-held cap 5-1 and Tip protection bar 5-2, the lateral surface of hand-held cap is and overcoat The consistent elliptic cylinder of lateral surface shape, the frictional force contacted for increase medical personnel's finger pulp with hand-held cap, can be in hand-held cap Lateral surface is further set in anti-skid structure, such as accompanying drawing 1-5, appeared outside hand-held cap on the anti-skid bulge band that sets.It is hand-held The lumen orifice of cap is cylindrical hole, and the periphery for being located at lumen orifice in the upper end of hand-held cap is provided with upper edge 5-1-1, the cap of hand-held cap It is connected with internal projection locating piece 5-1-2 on bottom, internal projection locating piece is provided with jack, the leading section of Tip protection bar is plugged in slotting It is connected in hole with the formation of hand-held cap；In blood taking needle under cock is treated, Tip protection bar goes out pin through percussion set bottom Hole, the needle portion of stainless pin is even noted in Tip protection bar, and hand-held cap is set in outside percussion set hypomere from the bottom to top, and hand Annular groove formation inserting of the upper edge of cap with being arranged on overcoat set bottom is held to be connected.Above-mentioned needle sterile protection cap with The form fit of overcoat, makes whole lower one oval rod structure of triggering safe hemostix formation, so as to facilitate lower triggering safety Packaging, transport and the storage of hemostix.

In the present embodiment, the elastic firing member is preferred to use tension and compression combined type spring 6, its by integrally connected extension spring Section and stage clip section are constituted, specifically, being constituted on the basis of common stainless steel stage clip plus around the extension spring of a bit of close system.Using Tension and compression combined type spring is improved into needle speed and percussion force, considerably reduces blood sampling pain, or even can reach painless.

In the present embodiment, the two vertical guide grooves put are fired preferably by a pair of tapered guide surface 2-7 and percussion set The lower end for a pair of guide protrusions blocks that upper end is formed on connection, needle handle uses arc surface structure, is in blood taking needle and waits to fire Under state, the arc surface of guide protrusions block is contacted with the tapered guide surface formation of the vertical guide groove upper end of correspondence.It is oriented to using taper Face and the fit structure of arc surface, make guide protrusions block form the wedge-like engagement of line contact type with percussion set, so, in percussion set During up, percussion power consumption can be minimized, the quick spreading of percussion set is also allowed in addition.

Embodiment 2：

Fig. 6-8 are referred to, triggering safe hemostix, the present embodiment safety blood taking blind can be held with percussion perceptional function Difference of the device from embodiment 1 be mainly overcoat 1 ' shape and percussion set 2 ' shape it is different, specially：

Overcoat is rectangle set, and overcoat inner chamber is that rectangle column logical direct light face chamber, i.e. overcoat inner chamber are set relatively by a pair The wide plane and the narrow plane of a pair of opposing put are formed, and percussion perceives solution lockhole 1-3 ' and is arranged on a pair of narrow planes or one To in wide plane.Percussion set epimere 2-1 ' is the rectangle set being engaged with overcoat inner chamber, and percussion set hypomere 2-2 ' is square sleeve, Percussion set stretches out the square opening that Kong Weiyu percussion set hypomeres match.

In this embodiment, the shape that the shape of upper lid 4 ' also will be preferably with overcoat matches, the needle handle 3-1 ' of blood taking needle 3 ' The shape of cross section that shape of cross section also preferably will cover inner chamber with percussion matches.

In this embodiment, the needle sterile protective cap 5 ' is preferred to use following structure：

Connected and composed by two independent bulk-breakings of hand-held cap 5-1 ' and Tip protection bar 5-2 '.The hand-held cap is by U-shaped opening Set part 5-1-1 ', the inserting post 5-1-2 ' being arranged on inside opening sleeve set bottom and the flat hand being arranged on outside opening sleeve set bottom Hold shank 5-1-3 ' compositions.Jack is provided with slotting shape post, the leading section of Tip protection bar is plugged in jack and hand-held hat Into connection.In blood taking needle under cock is treated, Tip protection bar covers the needle outlet of bottom, the pin of stainless pin through percussion Head point is even noted in Tip protection bar, and the U-shaped opening set part of hand-held cap is set in the both sides of percussion set hypomere from the bottom to top Outside.

Embodiment 3：

Fig. 9-11 are referred to, triggering safe hemostix blind can be held with percussion perceptional function, the present embodiment is adopted safely The percussion that the difference of blood device and embodiment 2 is the shape of overcoat 1 ", put outside perceives the quantity in hole and the shape of percussion set 2 " Difference, be specially：

Overcoat is square overcoat, and the inner chamber of overcoat is the square logical direct light face chamber in cross section；On sleeve side wall It is provided with two pairs of each percussions positioned opposite and perceives solution lockhole 1-3 ", one pair of which percussion perceives solution lockhole and is arranged on the one of overcoat On group relative side, another pair percussion perceives solution lockhole and is arranged on another group of relative side of overcoat；The percussion set epimere 2-1 " is that the square matched with overcoat inner chamber covers, and the percussion set hypomere 2-2 " is square sleeve, and the percussion set stretches out hole For the square opening matched with percussion set hypomere.The percussion of two pairs of above-mentioned arrangements is set to perceive solution lockhole on set outside square, Advantage is：When assembling overcoat and percussion set, percussion is cased with four and is rotatably inserted into position, so, and more conducively mechanization is assembled.And on Embodiment 1 and embodiment 2 are stated, only two are rotatably inserted into position.

In this embodiment, the shape that the shape of upper lid 4 " also will be preferably with overcoat matches, the needle handle 3-1 " of blood taking needle 3 " The shape of cross section that shape of cross section also preferably will cover inner chamber with percussion matches.

Above is three preferred embodiments of this lower triggering safe hemostix, but be not used for limiting present invention implementation model Enclose, i.e., the equivalent changes and modifications that all contents according to scope of the present invention patent are done, such as：

1st, overcoat uses Long Circle overcoat, and overcoat inner chamber leads to direct light face chamber using Long Circle column, i.e., set relatively by a pair The wide plane and the narrow arc surface of a pair of opposing put are formed.

2nd, the inner cavity surface of the lateral surface of overcoat and overcoat can use identical shape, such as, the description of above three embodiment Shape, can also take different shapes, such as, the inner cavity surface of overcoat is using oval face, and the lateral surface of overcoat is using length Square face etc..

3rd, overcoat inner chamber uses identical shape with percussion set epimere lateral surface, such as, the description of above three embodiment Shape, can also take different shapes, such as, and overcoat inner chamber uses rectangle face, and fires set epimere lateral surface using oval Shape etc..

In a word, as long as the inner chamber of overcoat is logical direct light face chamber, percussion set can be directly inserted into overcoat, and percussion set is by outer The constraint of set inner chamber is circumferentially limited, i.e., circumferentially can not swing and rotate along percussion set, belong to the protection model of the present invention Enclose.

This lower triggering safe hemostix uses said structure, is improved in following several respects：

1st, this lower triggering safe hemostix completely eliminate enumerated in background technology " two " 1) in be previously mentioned only Latch mechanism it is excessively complicated and again inconvenience assembling phenomenon, simplify locking mechanism, not only facilitate assembling, can also realize quick group Dress.2) and 3) the overcoat size chamber phenomenon being previously mentioned also solve simultaneously in is difficult to align with the assembling of spacing slideway, time-consuming work consuming Deficiency.The present invention uses overcoat inner chamber for the logical direct light face chamber without guide protrusions muscle or guiding groove, and percussion set lateral surface Using the shape matched with overcoat inner chamber, circumferentially form spacing after making percussion set insertion overcoat, particularly by overcoat, hit Hair net and needle handle are all synchronous to be designed as the shape such as square, oval to control the axially or transversally swing of percussion set and needle handle, Each component that its profile is approximate but size reduces step by step can use suit mode, and disposable error free assembling can be achieved, has Simple to operate, assembling is quick, hence it is evident that the great advantage of reduction assembly cost.During assembling, without with visually it, lower feel only according to referring to Percussion set can be pushed away loaded in overcoat, then by the upper lid and needle handle insertion percussion set that have joined solid spring and by upper lid press-fit in Overcoat is suitable for reading, is finally again being attached protective cap with Tip protection bar, forms needle sterile protective cap, i.e., smoothly terminates. Through simulated test, not only it is highly suitable for the blind dress of blind person, is that expanding employment for blind person provides a new market, more in the future Automatic assembling lay solid technical foundation.

2nd, this lower triggering safe hemostix completely eliminates the deficiency enumerated in background technology " one ".The present invention is in design On eliminate a pair of percussion set spacing preiection long tables or 1-2 that overcoat inner chamber in existing such hemostix product sets to length Raised ribs (the especially middle hypomere of overcoat inner chamber) fire the structure only locked with unlocking of set to realize.But pass through outer casing inner wall Inwardly extrude a pair of unblock projections to realize the gathering of percussion set, and complete to fire the only lock function of set and needle handle.In actual life It is bigger than normal with overcoat inner chamber gap caused by mould reason to eliminate percussion set during production, cause percussion to be enclosed on the appearance of overcoat inner chamber Different degrees of slight lateral is swung, and can fire to perceive in overcoat medial surface and a pair of shallower v fonts horizontal strokes are opened above solution lockhole Groove is corrected to swinging, you can satisfied to solve.So, the volume of overcoat inner chamber can be cleverly saved, the outward appearance of overcoat is reduced Size.In blood collection procedure is fired, when percussion set goes upward to the raised percussion for fairly falling in overcoat of two unblocks that percussion is put When perceiving in solution lockhole, percussion set spreading resets, and not only science realizes percussion set and the unblock of needle handle, also achieves directly perceived Triggering perceptional function.In clinic blood sampling, medical personnel are touched a pair of the percussions put outside hemostix by finger and perceive solution At lockhole, when being advanced into percussion in unblock projection and perceiving solution lockhole, you can by the sensory nerve of finger pulp, raised to unblock It is up to accomplish clear perception with moment percussion, really realize the design original intention with triggering perceptional function.It is outer saving The volume of inner chamber is covered, the apparent size of overcoat is reduced, completed on the basis of firing the only lock of set and unlocking, and cleverly realize Triggering perceptional function at one stroke four optimum efficiency.Medical personnel completely can be according to actual blood sampling to the age of picture, sex, duty Industry touches pressure or the speed for pressing and pressing again selection with touching with being adopted the concrete conditions such as the thin and thick of finger pulp skin using different The accurate control of pressure time, changing into actively blood sampling by passive blood sampling to medical personnel has important Clinical significance of MG, can To realize that real human nature service lays solid technical foundation.It is also maximum original creation part of the invention.

3rd, existing upper triggering safe hemostix, other triggering safe hemostix and lower triggering safe hemostix, especially lead " the disposable lower triggering safe hemostix " of stream, its main product is all only to be adopted with a common simple stage clip come complete independently The overall process of blood percussion, should complete inserting needle function and complete withdraw of the needle function again, will stage clip hardness into withdraw of the needle function to realize Impart extension spring function, and cause the course of work of stage clip to be first to postpone drawing, and the process drawn is exactly down speeding procedure, because will be extensive The stage clip in drift, which is forced to elongate 3-4mm again, again enters needle stroke to reach inserting needle purpose, its power born out than The big several times of extension spring.Result is significantly reduced into needle speed, result in the generation of inserting needle pain.And the present invention is pressed merely to eliminate Spring causes inserting needle pain during blood sampling because entering needle speed not enough, and spy designs and added around one on the basis of common stainless steel stage clip The extension spring of the close system of segment, becomes combined type percussion spring.Through actual tests, combined type percussion spring is not reducing inserting needle Under the premise of elastic force, also significantly improve blood taking needle enters needle speed and percussion force, and makes most of by blood sampling patient, realization The painless blood sampling of real hommization is the breakthrough and leap of matter.

In addition, overcoat inner chamber uses above-mentioned fit structure with percussion set, its another advantage is a cancellation the nothing of overcoat inner chamber With space, and then the actual volume and weight of needle handle are a significant increase, the quality that compensate for existing blood taking needle needle handle is too small Disadvantage, this serves the important function performed meritorious deeds never to be obliterated again to the needle speed that enters for improving blood taking needle.Because blood taking needle enters needle speed There is absolute causality with the quality of needle handle, in certain circumstances it may be said that the desirable quality of needle handle determines entering for blood taking needle Needle speed, this can create 23.12 meters, the former Soviet Union like the male shot-putter's Barnes in the U.S. in nineteen ninety Los Angeles,U.S Female shot-putter Li Suofusikaya can create 22.63 meters of world record, but if making them go to push away one extremely light Feather, it is the same probably to connect the reason that 3 meters of distance also is difficult to reach.

Claims

1. with percussion perceptional function triggering safe hemostix blind can be held, including overcoat, percussion set, blood taking needle, upper lid and Needle sterile protective cap, it is characterised in that：

The upper end of overcoat is lid installing port in openend, composition, and the upper lid is packed at lid installing port；The lower end of overcoat is set There is set bottom, spacing interior table top is formed between set bottom and sleeve side wall, hole is stretched out provided with percussion set on set bottom；The inner chamber of overcoat is Logical direct light face chamber, and the inner chamber of overcoat is for cylindroid inner chamber or by the loose face of a pair of opposing and the leptoprosopy of a pair of opposing Formed；A pair of percussions positioned opposite are provided with sleeve side wall and perceive solution lockhole；

The percussion set is plugged in overcoat, and percussion set is made up of two parts of percussion set epimere and percussion set hypomere, percussion set The cross section of epimere is more than the cross section of percussion set hypomere, percussion is covered between epimere and percussion set hypomere and forms spacing between outer land Face；Percussion set epimere is formed along the vertical direction with overcoat inner chamber to be slidably matched, and is constrained by overcoat inner chamber, is circumferentially limited； Fire set hypomere and percussion set stretching hole forms and freely inserts cooperation；Positioned opposite a pair are provided with the side wall of percussion set Vertical guide groove, vertical guide groove is connected with the upper end of percussion set, makes percussion cover to form elastic opening nested structure, the end on percussion set Side wall is externally provided with a pair of unblock projections positioned opposite, and it is in that 90 ° of angles are arranged with vertical guide groove to unlock raised, is firing the bottom of set Portion is provided with needle outlet；

The blood taking needle forms inserting with percussion set and is connected, and blood taking needle is made up of needle handle and stainless pin, in the lateral surface of needle handle On be provided with a pair of guide protrusions blocks positioned opposite, the body sections of stainless pin are even noted in needle handle, the pin of stainless pin Head point is stretched out from the front end of needle handle, and flexible firing member is connected between needle handle and upper lid；

In blood taking needle under cock is treated, percussion set is located at the lower working position in overcoat, fires the spacing outer table top put Contacted with the spacing interior table top formation put outside, percussion set epimere cover outside in be resilient drawing shape in, draw two vertical guide grooves in Into up-narrow and down-wide cone tank, percussion set hypomere stretches out hole from percussion set and stretched out；A pair of guide protrusions blocks on needle handle respectively with The upper end for firing two vertical guide grooves of set is in contact, and blood taking needle is supported in the upper end position of percussion set, and needle portion is even noted In in needle sterile protective cap；

It is in blood taking needle under cock, the front end face formation dialysis of needle sterile protective cap and needle handle makes outside needle portion Reveal, the upper working position that percussion set is gone upward in overcoat, the two unblock projections that percussion is put are up respectively to slide into two put outside Individual percussion perceives in solution lockhole and forms spacing, percussion is covered spreading and resets, blood taking needle edge in the presence of elastic firing member Percussion set forms linearity with percussion set inner chamber and is slidably matched towards the movement of needle outlet direction, needle handle, two guide protrusions on needle handle The two vertical guide groove formation that block is put with firing are slidably matched.

It is 2. according to claim 1 that there is percussion perceptional function blind can hold triggering safe hemostix, it is characterised in that： The overcoat covers for ellipse, and the percussion set epimere is that the ellipse coordinated with overcoat inner chamber covers, and the percussion set hypomere is The circular set being coaxially disposed with percussion set epimere, and the external diameter of percussion set hypomere is less than the minor axis length that percussion covers epimere, it is described Percussion set stretches out the circular port that Kong Weiyu percussion set hypomeres match.

It is 3. according to claim 2 that there is percussion perceptional function blind can hold triggering safe hemostix, it is characterised in that： The needle sterile protective cap is connected and composed by two independent bulk-breakings of hand-held cap and Tip protection bar；The lateral surface of hand-held cap is ellipse The face of cylinder and consistent with the lateral surface shape of overcoat；The lumen orifice of hand-held cap is cylindrical hole, is located at inner chamber in the upper end of hand-held cap The periphery in hole is provided with upper edge；Internal projection locating piece is connected with the cap bottom of hand-held cap, internal projection locating piece is provided with jack, The leading section of Tip protection bar is plugged in jack to be connected with the formation of hand-held cap；In blood taking needle under cock is treated, syringe needle Guard bar is through the needle outlet of percussion set bottom, and the needle portion of stainless pin, which connects, to be noted in Tip protection bar, and hand-held cap is under Supreme be set in is fired outside set hypomere, and the upper edge of hand-held cap connects with being arranged on the annular groove formation that overcoat is covered on bottom and inserting Connect.

It is 4. according to claim 1 that there is percussion perceptional function blind can hold triggering safe hemostix, it is characterised in that： The overcoat is rectangle set, and the percussion set epimere is the rectangle set coordinated with overcoat inner chamber, and the percussion set hypomere is Square sleeve, the percussion set stretches out the square opening that Kong Weiyu percussion set hypomeres match.

It is 5. according to claim 4 that there is percussion perceptional function blind can hold triggering safe hemostix, it is characterised in that： The needle sterile protective cap is connected and composed by two independent bulk-breakings of hand-held cap and Tip protection bar；The hand-held cap is opened by U-shaped Muzzle part, the inserting post being arranged on inside opening sleeve set bottom and the flat hand-held handle portion structure being arranged on outside opening sleeve set bottom Into provided with jack on slotting shape post, the leading section of Tip protection bar is plugged in jack to be connected with the formation of hand-held cap；In blood taking needle In treating under cock, Tip protection bar is through the needle outlet of percussion set bottom, and the needle portion of stainless pin even noted in pin In head protection bar, the U-shaped opening set part of hand-held cap is set in outside the both sides of percussion set hypomere from the bottom to top.

It is 6. according to claim 1 that there is percussion perceptional function blind can hold triggering safe hemostix, it is characterised in that： The elastic firing member uses tension and compression combined type spring, and it is made up of the extension spring section and stage clip section of integrally connected.

It is 7. according to claim 1 that there is percussion perceptional function blind can hold triggering safe hemostix, it is characterised in that： Fire the two vertical guide grooves put to connect with the upper end formation of percussion set by a pair of tapered guide surfaces, a pair on needle handle are led Use arc surface structure to the lower end of protruding block, in the case where blood taking needle is in and treats cock, the arc surface of guide protrusions block with The tapered guide surface formation contact of the vertical guide groove upper end of correspondence.

8. with percussion perceptional function triggering safe hemostix blind can be held, including overcoat, percussion set, blood taking needle, upper lid and Needle sterile protective cap, it is characterised in that：

The upper end of overcoat is lid installing port in openend, composition, and the upper lid is packed at lid installing port；The lower end of overcoat is set There is set bottom, spacing interior table top is formed between set bottom and sleeve side wall, hole is stretched out provided with percussion set on set bottom；The inner chamber of overcoat is The square logical direct light face chamber in cross section；Two pairs of each percussions positioned opposite are provided with sleeve side wall and perceive solution lockhole, One pair of which percussion perceives solution lockhole and is arranged on one group of relative side of overcoat, and another pair percussion perception solution lockhole is arranged on outer On another group of relative side of set；

The percussion set is plugged in overcoat, and percussion set is made up of two parts of percussion set epimere and percussion set hypomere, percussion set The cross section of epimere is more than the cross section of percussion set hypomere, percussion is covered between epimere and percussion set hypomere and forms spacing between outer land Face；Percussion set epimere is formed along the vertical direction with overcoat inner chamber to be slidably matched, and is constrained by overcoat inner chamber, is circumferentially limited： Fire set hypomere and percussion set stretching hole forms and freely inserts cooperation；Positioned opposite a pair are provided with the side wall of percussion set Vertical guide groove, vertical guide groove is connected with the upper end of percussion set, makes percussion cover to form elastic opening nested structure, the end on percussion set Side wall is externally provided with a pair of unblock projections positioned opposite, and it is in that 90 ° of angles are arranged with vertical guide groove to unlock raised, is firing the bottom of set Portion is provided with needle outlet；

The blood taking needle forms inserting with percussion set and is connected, and blood taking needle is made up of needle handle and stainless pin, in the lateral surface of needle handle On be provided with a pair of guide protrusions blocks positioned opposite, the body sections of stainless pin are even noted in needle handle, the pin of stainless pin Head point is stretched out from the front end of needle handle；Flexible firing member is connected between needle handle and upper lid；

In the case where blood taking needle is in and treats cock, percussion set is located at the lower working position in overcoat, percussion set epimere cover outside in be in Elasticity draws shape in, two vertical guide grooves is collapsed into up-narrow and down-wide cone tank, fires the spacing outer table top put and puts outside Spacing interior table top formation contact, percussion set hypomere stretches out hole from percussion set and stretched out；A pair of guide protrusions blocks on needle handle respectively with The upper end for firing two vertical guide grooves of set is in contact, and blood taking needle is supported in the upper end position of percussion set, and needle portion is even noted In in needle sterile protective cap；

It is in blood taking needle under cock, the front end face formation dialysis of needle sterile protective cap and needle handle makes outside needle portion Dew, the upper working position that goes upward in overcoat of percussion set fires raised up slide into respectively of two unblocks put and outer puts two pairs Answer a pair on the wall of side and fire in perception solution lockhole and form spacing, percussion is covered spreading and reset, blood taking needle fires structure elastic Moved in the presence of part along percussion set towards needle outlet direction, needle handle forms linearity with percussion set inner chamber and is slidably matched, on needle handle The two vertical guide grooves formation that are put with firing of two guide protrusions blocks be slidably matched.

It is 9. according to claim 8 that there is percussion perceptional function blind can hold triggering safe hemostix, it is characterised in that： The overcoat is square overcoat, and the percussion set epimere is that the square matched with overcoat inner chamber covers, under the percussion set Section is square sleeve, and the percussion set stretches out the square opening that Kong Weiyu percussion set hypomeres match.