CN104644182B - It is capable of achieving the disposably lower triggered safety hemostix of quick assembling - Google Patents

It is capable of achieving the disposably lower triggered safety hemostix of quick assembling Download PDF

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Publication number
CN104644182B
CN104644182B CN201510091258.1A CN201510091258A CN104644182B CN 104644182 B CN104644182 B CN 104644182B CN 201510091258 A CN201510091258 A CN 201510091258A CN 104644182 B CN104644182 B CN 104644182B
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China
Prior art keywords
inner sleeve
needle
overcoat
blood taking
leading section
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CN201510091258.1A
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Chinese (zh)
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CN104644182A (en
Inventor
王振民
刘玉花
王伟
王浩阳
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BEIJING RUICHENG MEDICAL SUPPLIES CO., LTD.
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王振民
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Priority to CN201510091258.1A priority Critical patent/CN104644182B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/150022Source of blood for capillary blood or interstitial fluid
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/151Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/151Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101Details

Abstract

The disposably lower triggered safety hemostix of quick assembling is capable of achieving, including:Overcoat;Inner sleeve with symmetrical gathering sill;The blood taking needle being made up of needle handle and needle body, needle handle are provided with symmetrical guide vane;It is fixed on the bonnet of opening end after overcoat;The percussion spring being connected with the rearward end and bonnet of needle handle;The position that gathering sill is correspondingly arranged in the rearward end of inner sleeve is respectively equipped with the flanging with opening, the gathering sill insertion of opening and correspondence position;The leading section of two guide vanes is engaged to form blood taking needle locking structure with two openings respectively;The two groups of raised ribs to form twice draw-in groove are arranged with the inner surface of sleeve side wall, under the unexcited state of blood taking needle, two flangings cooperatively form inner sleeve with twice draw-in groove setting-in respectively and limit swollen structure;Bonnet presses arm by base and two and constitutes, and in the state of inner sleeve leading section retraction overcoat inner chamber, two wedge shape plugs for pressing arm are engaged with two openings respectively, makes inner sleeve distending, forms blood taking needle unlocking structure.This hemostix realizes the once mounting of inner sleeve in place, reduces assembly cost.

Description

It is capable of achieving the disposably lower triggered safety hemostix of quick assembling
Technical field
The present invention relates to medical and clinical blood chemical examination detection medical instruments field, espespecially a kind of to be capable of achieving quick assembling once Triggered safety hemostix under property.
Background technology
It is that countries in the world clinical medicine is taken a blood sample in tip that " disposable safe hemostix " is also referred to as " disposable safe blood taking needle " The main blood taking instrument of chemical examination, is easy to carry because which has, easy to operate, and sterilization is thorough, and aseptic is strong, can avoid again iatrogenic The advantages of cross infection, therefore since the advent of the world, receive the extensive welcome of doctor and patient.But as the " lower to touch of main product , from for the attribute of its medical disposable material, still there is its manufacturing cost at present higher not in hairdo disposable safe hemostix " Foot part, it is the labor-intensive enterprise with the characteristics of man-made assembly to be mainly the product, and laborious, time-consuming and obvious because assembling Increased assembly cost.And cause assembly cost the reason for substantially increase be blood taking needle only lock assembly program it is both bothersome numb It is tired, also most expend assembling man-hour." the lock solution of " lower triggered safety blood taking needle " that bright U.S. company BD is produced is write for example The assembling of ring ";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;Chinese patent:CN2009 45164Y;China Patent:, in above-mentioned Patent design, all there is blood sampling needle spring difficult with the compression of blood taking needle needle handle and locking in CN2013 79576Y Surprising general character.Especially " disposable touchpress safe hemostix causing no pain " (patent No. of my invention CN201010574540.2), the patent transfers Tianjin Hua Hong Science and Technology Ltd.s, after being produced, finds blood taking needle Only lock assembly program and equally exist trouble, bothersome not enough and more project.The movable inner sleeve of the invention completes blood taking needle Only lock with unblock critical component, movable inner sleeve be " expansion sleeve type " structure, realized by the folding of its upper end v-shaped openings into Pin, causes not enough below appearance in actual assembled:1) it is little because of overcoat luminal stenosis, cause the cooperation of inner sleeve and overcoat inner chamber Slideway para-position is difficult and be obviously prolonged built-up time;2) because adopting " expansion sleeve type " structure, and by its upper end v-shaped openings Folding is realizing inserting needle.In assembling, the movable inner sleeve quickly can not be slid in place with " freely falling body " form, it is necessary to used Movable inner sleeve is forced to head into overcoat inner chamber simultaneously fully in place by " push rod " formula specific purpose tool, and whole process is obviously prolonged again Built-up time, both time-consuming conjunctions, not only significantly increases the man-hour of assembling, and the also synchronous assembly cost that causes significantly rises Height, finally make the manufacturing cost of hemostix substantially raise up with it is higher.And the disappearance with Chinese population bonus and recruitment are waste goes out It is existing, and cause long on the wage straight line for assemble workman and further increase the assembly cost of hemostix, this kind of trend will be not Reversible.
All interrogate according to south, in population fertility political affairs, " if the policy of maintenance is constant, by 2099, Chinese 60 years old of 21 century Mo and The proportion of above aging population number will be up to 40.15%, 15-59 year working-age population and bring up 60 years old and above aging population Proportion will be up to 83.22%." China's labouring population are quickly reducing.2012, national working-age population was reduced than last year 3450000 people;2013, national working-age population reduced by 2,440,000 people than last year.Find according to newest investigation, with Chinese people The disappearance of lipstick profit, China southeast coastal industry developed regions occur in that different degrees of recruitment is waste, cause recruitment emolument to increase Plus 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:Hand-pulled noodles teacher monthly pay 1.2 ten thousand Unit;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 with carrying, what's frequently heard can be repeated in detail Confinement-caring woman, express delivery person cross blue collar labourer's wage of the present many industries in Beijing of ten thousand income ... easily, already beyond common The wage of white collar.New blue collar has arrived in the epoch.Because of the quick increase of recruitment cost, especially as this work of ending blood taking needle Intensive enterprise, because of the cost more and more higher of hand assembled, this is brought in terms of the competition of World Economics is participated in such enterprise Larger 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, save assembling man-hour and improve packaging efficiency, so as to reduce the manufacturing cost of hemostix, become hemostix research and produce Trend of the times.
The content of the invention
When the present invention provides a kind of reduction assembly cost, saves assembling to solve technical problem present in known technology Between, improve packaging efficiency achievable quick assembling disposably lower triggered safety hemostix.
The present invention is adopted the technical scheme that by solving technical problem present in known technology:
The disposably lower triggered safety hemostix of quick assembling is capable of achieving, including:Overcoat, with front opening end and rear spacious Mouth end;Inner sleeve, is placed in overcoat inner chamber, and can be along the line direction linear slide of the rear ends of overcoat, the leading section of inner sleeve Needle outlet is provided with, the rearward end of inner sleeve is opening end, and the leading section of inner sleeve is stretched out from the front opening end of overcoat, and passes through to be arranged on The fit structure of the inner retaining side of overcoat leading section and the projection being arranged on sidewall of the inside race makes inner sleeve overhanging spacing, in the side of inner sleeve The gathering sill that two rear ends line directions along inner sleeve extend is arranged with wall;Blood taking needle, is placed in overcoat inner chamber, its It is made up of needle handle and the needle body on needle handle, the needle portion of needle body is stretched out from the front end of needle handle, symmetrically sets on needle handle There are two guide vanes corresponding with interior two gathering sills for putting;Bonnet, is fixed on the rear opening end of overcoat;Percussion spring, puts In the inner chamber of overcoat, its leading section and rearward end are connected with the rearward end and bonnet of needle handle respectively;Sterile sealing cap, itself and pin Head point is tightly connected, and its leading section is stretched out from the needle outlet of inner sleeve leading section;It is characterized in that:Inner sleeve rearward end with The corresponding position of two gathering sills is set and is respectively equipped with a flanging, a width is equipped with two flangings less than guiding groove width The opening of degree, two openings and the gathering sill insertion of correspondence position, make inner sleeve form expansion sleeve type structure;Two guide vanes on needle handle Leading section is engaged to form blood taking needle locking structure with the opening of two flanging of inner sleeve respectively, and makes percussion spring in pressure Cock is treated in contracting;Be arranged with the inner surface of sleeve side wall along overcoat rear ends line direction extend two groups it is convex Play muscle, two groups of raised ribs form twice draw-in grooves, under the unexcited state of blood taking needle, two flangings of inner sleeve respectively with twice card Groove setting-in cooperatively forms inner sleeve and limits swollen structure;The bonnet presses arm structure with two be symmetrical arranged on the inner face of base by base Into, two ends for pressing arm form wedge shape plug by arranging wedge surface, in the state of inner sleeve leading section retraction overcoat inner chamber, Two wedge shape plugs are engaged with the opening on two flanging of inner sleeve respectively, are made inner sleeve distending, and are formed blood taking needle unlocking structure.
The technical scheme that the present invention may also take on is:
It is respectively symmetrically positioned at the both sides of opening on two flangings of inner sleeve and is provided with an anticlinal stile, two pairs of flares Oblique stile forms blood taking needle and installs guiding structural.
Protective cap is housed in the leading section adapter sleeve of overcoat, the front end sponson of inner sleeve is placed in protective cap.
The present invention has the advantages and positive effects that:
Safety hemostix is coordinated with blood taking needle guide vane leading section by the both sides position of inner sleeve rear end flanging opening Blood taking needle locking structure is formed, and the sphenocephaly for arm being pressed by the opening of inner sleeve rear end flanging and bonnet cooperatively forms blood taking needle Unlocking structure.Using above-mentioned only lock and unlocking structure make in be enclosed within be installed in overcoat when, only overcoat need to be substantially at vertically The leading section of overcoat inner chamber will be slipped into " freely falling body " mode moment in position, inner sleeve, so as to realize disposably being installed in place, The assembling of inner sleeve is further quickly finished, assembling man-hour is saved and is improve packaging efficiency, and then reduce the group of hemostix Dress up this.
Description of the drawings
Fig. 1 is the structural representation under the non-cock of hemostix of the present invention;
Fig. 2 is the A-A sectional views of Fig. 1;
Fig. 3 is the dimensional structure diagram of Fig. 1;
Fig. 4 is the structural representation of removal part overcoat in Fig. 3;
Fig. 5 is the structural representation being pierced into after hemostix of the present invention is fired under finger pulp state;
Fig. 6 is the B-B sectional views of Fig. 5;
Fig. 7 is the dimensional structure diagram of Fig. 5;
Fig. 8 is the structural representation of removal part overcoat in Fig. 7;
Fig. 9 is the structural representation of overcoat;
Figure 10 is the dimensional structure diagram of inner sleeve.
In figure:1st, overcoat;101st, raised ribs;102nd, draw-in groove;103rd, gathering sill;104th, inner retaining side;2nd, inner sleeve;201st, it is oriented to It is raised;202nd, needle outlet;203rd, gathering sill;204th, flanging;205th, it is open;206th, stile;3rd, blood taking needle;301st, needle handle; 302nd, needle body;303rd, guide vane;4th, bonnet;401st, base;402nd, press arm;5th, fire spring;6th, sterile sealing cap;7th, protect Cap.
Specific embodiment
For the content of the invention, feature and effect of the present invention can be further appreciated that, following examples are hereby enumerated, and coordinates accompanying drawing Describe in detail as follows:
Fig. 1-10 are referred to, the disposably lower triggered safety hemostix of quick assembling is capable of achieving, by following sections structure Into:
Including overcoat 1, overcoat has front opening end and rear opening end, is arranged with along outer on the inner surface of sleeve side wall Two groups of raised ribs 101 that the line direction of the rear ends of set extends, two groups of raised ribs form twice draw-in groove 102.
Including inner sleeve 2, inside it is placed in overcoat inner chamber, and can be along the line direction linear slide of the rear ends of overcoat. The straight-line guidance structure being engaged is set generally between inner sleeve and overcoat, and the such as outer surface in sidewall of the inside race arranges symmetrical , and along inner sleeve rear ends line direction extend two guide protrusions 201, symmetrical guiding is set on the internal chamber wall of overcoat Groove, wherein gathering sill can directly on the internal chamber wall of overcoat formed, may also set up two groups of raised ribs described above, raised ribs it Between formed gathering sill 103.By the cooperation of guide protrusions and gathering sill, inner sleeve linear slide in the overcoat is made.The front end of inner sleeve Portion is provided with needle outlet 202, and the rearward end of inner sleeve is opening end, and the leading section of inner sleeve is stretched out from the front opening end of overcoat, and passes through The fit structure for being arranged on the inner retaining side 104 and the projection being arranged on sidewall of the inside race of overcoat leading section makes inner sleeve overhanging spacing. The gathering sill 203 that two rear ends line directions along inner sleeve extend is arranged with the side wall of inner sleeve, specifically, this is led The rear end face of inner sleeve is extended to groove, but the distance of setting is left with the front end face of inner sleeve.In rearward end and the setting two of inner sleeve The corresponding position of gathering sill is respectively equipped with a flanging 204, is equipped with a width less than guiding well width on two flangings Opening 205, two openings and the gathering sill insertion of correspondence position make inner sleeve form expansion sleeve type structure.
Including blood taking needle 3, blood taking needle is placed in overcoat inner chamber, and blood taking needle is by needle handle 301 and the needle body on needle handle 302 are constituted, and the needle portion of needle body is stretched out from the front end of needle handle, is arranged with relative with two gathering sills on interior set on needle handle Two guide vanes 303 answered, so during blood taking needle percussion, two guide vanes two respectively on sidewall of the inside race are led Slide into groove, it is achieved thereby that blood taking needle is along the non-beat inserting needle of straight line.
Including bonnet 4, bonnet is fixed on the rear opening end of overcoat, and the bonnet is by base 401 and is symmetrical arranged in base Two on end face press arm 402 and constitute, and two ends for pressing arm form wedge shape plug by arranging wedge surface.
Including percussion spring 5, percussion spring be placed in the inner chamber of overcoat, fire spring leading section and rearward end respectively with The rearward end of needle handle and bonnet connection.
Including sterile sealing cap 6, sterile sealing cap is tightly connected with needle portion, and its leading section is brought out from before inner sleeve Pin hole stretches out.
On above-mentioned needle handle, the leading section of two guide vanes is engaged to be formed with the opening of two flanging of inner sleeve respectively and adopts Blood pin locking structure, and make percussion spring treat cock in compression, specifically, because the width of guide vane turns up more than correspondence Width of the side upper shed under natural shape body, therefore a spacing table top is formed on the both sides of flanging upper shed, guide vane Front end is against on the spacing table top of correspondence, makes blood taking needle realize locking.Under the unexcited state of blood taking needle, above-mentioned inner sleeve two outside Flange cooperatively forms inner sleeve with the twice draw-in groove setting-in for putting outward respectively and limits swollen structure.In inner sleeve leading section retraction overcoat inner chamber Under state, it is above-mentioned after two wedge shape plugs that cover be engaged with the opening on two flanging of inner sleeve respectively, make inner sleeve distending, and shape Into blood taking needle unlocking structure.It is above-mentioned the reason for the inner surface setting raised ribs of sleeve side wall form draw-in groove to be:Due to blood sampling Device assembling when, percussion spring there is certain decrement, certain active force is so applied with to blood taking needle, due to inner sleeve compared with It is thin, to avoid inner sleeve insufficient strength and stress distending, therefore raised ribs are set on outer casing inner wall, draw-in groove is formed, by inner sleeve Flanging clamp, sends out or advanced primer ignition so as to avoid blood taking needle mistakenly hit under unexcited state.It is above-mentioned by raised ribs shape Into draw-in groove effective length and on the one hand need to ensure under the unexcited state of hemostix, outward apart from the position of overcoat rear end Flange is fitted in draw-in groove, and is needing the moment of percussion, and flanging departs from the constraint of draw-in groove, so as to be enclosed within bonnet in ensure that Distending in the presence of pressing arm, realizes the smooth unblock of blood taking needle.
After inner sleeve is assembled to overcoat, during for ease of realizing that blood taking needle is installed to overcoat inner chamber, with inner sleeve fast aligning position Put, the both sides positioned at opening on two flangings of inner sleeve are further arranged with an anticlinal stile 206 respectively, two pairs The stile of outer incline forms blood taking needle and installs guiding structural.Specifically, when blood taking needle is installed, two on blood taking needle needle handle are made Guide vane is aligned with the interior space for putting two anticlinal stiles formation respectively, and bonnet is fixed on opening end after overcoat so After upper, the leading section of two guide vanes of blood taking needle is pressed on the corresponding opening position of two flangings respectively, and then realizes blood sampling The only lock of pin.
Due to reasons such as extruding during to avoid in transportation or store, the front end sponson retraction of inner sleeve is made, and Blood taking needle mistakenly hit is caused to be sent out.In the leading section of overcoat, further adapter sleeve is equipped with protective cap, and the front end sponson of inner sleeve is placed in In protective cap.The protective cap can adopt two style structure with above-mentioned sterile sealing cap;Integral structure is may also be employed, i.e., without nectar The front end of sealing cap is connected with protective cap bottom interior surface.When protective cap adopts two style structure with sterile sealing cap, sterile sealing Cap be molded into blood taking needle one it is molded, and when both adopt integral structure formula, sterile sealing cap and protective cap integrated injection molding into Type.
This is capable of achieving the disposably lower triggered safety hemostix operation instruction of quick assembling:
When sterile sealing cap adopts two style structure with protective cap, the process of blood sampling is:
The first step:Overcoat is pinched with a hand finger first, another hand finger pinches protective cap, by protective cap from before overcoat End pulls, and so makes the front end sponson and the sterile sealing cap portion stretched out from inner sleeve front end of inner sleeve come out;
Second step:The sterile sealing cap portion for stretching out is pinched from inner sleeve front end with finger, several circles is rotated, is made sterile sealing cap Loosen, and sterile sealing cap is extracted from the front end of inner sleeve, so, blood taking needle needle portion is exposed in inner sleeve;
3rd step:Hemostix is pinched with finger, is made the needle outlet of inner sleeve front end align finger pulp by the person of adopting, and is applied to outer Power of the set towards the finger pulp direction by the person of adopting, under this force, the front end sponson of inner sleeve is gradually retracted in overcoat In chamber, during inner sleeve is retracted into overcoat inner chamber, blood taking needle is moved after synchronization in the presence of inner sleeve, and percussion spring is entered One step is compressed, and when the front end sponson of inner sleeve will be retracted into overcoat inner chamber, the opening on inner sleeve flanging is touched with bonnet The wedge shape plug of pressure arm end starts contact, and during inner sleeve is further retracted, two wedge shape plugs for pressing arm make interior respectively Two openings of set flanging gradually swell, when the size of opening swells the width slightly larger than blood taking needle guide vane, blood taking needle Depart from the restriction on inner sleeve flanging opening both sides, blood taking needle is unlocked, so in the presence of rear end percussion spring, blood taking needle pin Guide vane moment on handle is slided in the interior corresponding gathering sill for putting, and is made blood taking needle fast downlink, is pierced in finger pulp, then In fast retractile inner sleeve in the presence of percussion spring, and then medical personnel realize blood sampling.
When sterile sealing cap adopts integral structure with protective cap, the process of blood sampling is:First-selection pulls up protective cap, while Also sterile sealing cap is pulled up, it is next identical with the action of above-mentioned 3rd step, will not be described here.
This disposably lower triggered safety hemostix for being capable of achieving quick assembling " is disposably pressed for my invention The innovation reform that the safe painless hemostic of formula (patent No. CN201010574540.2) " is carried out and design.Only locked by blood taking needle The redesign of structure and unlocking structure, make in be enclosed within when being installed in overcoat, inner sleeve was slipped into " freely falling body " mode moment The leading section of overcoat inner chamber, so as to realize disposably being installed in place, and then quickly finishes the assembling of inner sleeve, and which is compared to existing Need to be with Special-purpose forceps by after interior being placed in overcoat, in addition it is also necessary to force to head into before overcoat by inner sleeve with " push rod " formula specific purpose tool The mode of end, reduces the difficulty of assembling, assembling man-hour is greatly saved, makes the original average used time 6-7 seconds, shortens to The present 1.5-2 seconds, make assembling work efficiency improve 3.5-4 times, and then significantly reduce assembly cost.
The invention makes the program behavior of assembly operation obtain maximized simplification, and eliminates Special-purpose forceps and special " top Bar ", assembling workman is free-hand to be capable of achieving quick assembling.So significantly alleviate the single-piece physical demandss of assembling workman.Aobvious Under the premise of work alleviates the single-piece physical demandss of assembling workman, within legal man-hour, obtain the product quantity for completing to assemble Significantly improve, and then the emolument of assembling workman can also reasonably significantly improved, enterprise and group are realized so as to maximized Double effects that are full of of dress workman.

Claims (3)

1. the disposably lower triggered safety hemostix of quick assembling is capable of achieving, including:Overcoat, with front opening end and rear open End;Inner sleeve, is placed in overcoat inner chamber, and can be along the line direction linear slide of the rear ends of overcoat, and the leading section of inner sleeve sets There is needle outlet, the rearward end of inner sleeve is opening end, and the leading section of inner sleeve is stretched out from the front opening end of overcoat, and passes through to arrange outside The fit structure of the inner retaining side and the projection being arranged on sidewall of the inside race of set leading section makes inner sleeve overhanging spacing, in the side wall of inner sleeve On be arranged with two along inner sleeve rear ends line directions extend gathering sills;Blood taking needle, is placed in overcoat inner chamber, its by Needle handle and the needle body on needle handle are constituted, and the needle portion of needle body is stretched out from the front end of needle handle, is arranged with needle handle Two guide vanes corresponding with interior two gathering sills for putting;Bonnet, is fixed on the rear opening end of overcoat;Percussion spring, is placed in In the inner chamber of overcoat, its leading section and rearward end are connected with the rearward end and bonnet of needle handle respectively;Sterile sealing cap, itself and syringe needle Part is tightly connected, and its leading section is stretched out from the needle outlet of inner sleeve leading section;It is characterized in that:The rearward end of inner sleeve with set Put the corresponding position of two gathering sills and be respectively equipped with a flanging, a width is equipped with two flangings less than guiding well width Opening, two openings and the gathering sill insertion of correspondence position make inner sleeve form expansion sleeve type structure;On needle handle before two guide vanes End is engaged to form blood taking needle locking structure with the opening of two flanging of inner sleeve respectively, and makes percussion spring in compression Treat cock;Be arranged with the inner surface of sleeve side wall along overcoat rear ends line direction extend two groups it is raised Muscle, two groups of raised ribs form twice draw-in grooves, under the unexcited state of blood taking needle, two flangings of inner sleeve respectively with twice draw-in groove Setting-in cooperatively forms inner sleeve and limits swollen structure;The bonnet presses arm structure with two be symmetrical arranged on the inner face of base by base Into, two ends for pressing arm form wedge shape plug by arranging wedge surface, in the state of inner sleeve leading section retraction overcoat inner chamber, Two wedge shape plugs are engaged with the opening on two flanging of inner sleeve respectively, are made inner sleeve distending, and are formed blood taking needle unlocking structure.
It is 2. according to claim 1 to be capable of achieving the quick disposably lower triggered safety hemostix for assembling, it is characterised in that: It is respectively symmetrically positioned at the both sides of opening on two flangings of inner sleeve and is provided with an anticlinal stile, two anticlinal stiles Form blood taking needle and guiding structural is installed.
It is 3. according to claim 1 to be capable of achieving the quick disposably lower triggered safety hemostix for assembling, it is characterised in that: Protective cap is housed in the leading section adapter sleeve of overcoat, the front end sponson of inner sleeve is placed in protective cap.
CN201510091258.1A 2015-02-26 2015-02-26 It is capable of achieving the disposably lower triggered safety hemostix of quick assembling Active CN104644182B (en)

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Publication number Priority date Publication date Assignee Title
CN108937964B (en) * 2018-05-22 2019-11-05 苏州施莱医疗器械有限公司 It is a kind of to can confirm that the blood collecting pen of blood taking needle dress needle in place
CN111467602B (en) * 2020-05-08 2021-09-17 江阴市人民医院 Convenient and accurate control drug delivery device for medical oncology nursing

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EP0367549A2 (en) * 1988-10-31 1990-05-09 Lawrence A. Lynn Medical connector
CN2619583Y (en) * 2003-04-24 2004-06-09 施国平 Self-locking disposable safety automatic blood taking needle
CN2678565Y (en) * 2004-02-23 2005-02-16 王庆祝 Disposable blood taking needle
CN2734139Y (en) * 2004-06-21 2005-10-19 杨莲英 Disposable blood taking needle
CN200945164Y (en) * 2006-08-14 2007-09-12 施国平 Disposable safety blood taking needle capable of adjusting puncture depth
CN102028479A (en) * 2010-12-06 2011-04-27 王振民 One-off safe and indolent contact pressure type hemostix
CN204520712U (en) * 2015-02-26 2015-08-05 王振民 The disposable lower triggered safety hemostix of rapid-assembling can be realized

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Publication number Priority date Publication date Assignee Title
US4664654A (en) * 1986-03-07 1987-05-12 Strauss Eric C Automatic protracting and locking hypodermic needle guard
EP0367549A2 (en) * 1988-10-31 1990-05-09 Lawrence A. Lynn Medical connector
CN2619583Y (en) * 2003-04-24 2004-06-09 施国平 Self-locking disposable safety automatic blood taking needle
CN2678565Y (en) * 2004-02-23 2005-02-16 王庆祝 Disposable blood taking needle
CN2734139Y (en) * 2004-06-21 2005-10-19 杨莲英 Disposable blood taking needle
CN200945164Y (en) * 2006-08-14 2007-09-12 施国平 Disposable safety blood taking needle capable of adjusting puncture depth
CN102028479A (en) * 2010-12-06 2011-04-27 王振民 One-off safe and indolent contact pressure type hemostix
CN204520712U (en) * 2015-02-26 2015-08-05 王振民 The disposable lower triggered safety hemostix of rapid-assembling can be realized

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