CN105054948A - Assembly-type blood taking needle - Google Patents
Assembly-type blood taking needle Download PDFInfo
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- CN105054948A CN105054948A CN201510557694.3A CN201510557694A CN105054948A CN 105054948 A CN105054948 A CN 105054948A CN 201510557694 A CN201510557694 A CN 201510557694A CN 105054948 A CN105054948 A CN 105054948A
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- needle
- needle body
- erection column
- slope
- body erection
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Abstract
The invention belongs to the technical field of disposable blood taking needles, and particularly relates to an assembly-type blood taking needle. The assembly-type blood taking needle comprises a special blood-taking device needle and a blood-taking device. The special blood-taking device needle comprises a needle body installing column and a needle body arranged in the center of the needle body installing column. The upper and lower pointed ends of the needle body extend out of the needle body installing column, the upper portion of the needle body installing column is sleeved with an upper protection sleeve, and the part, below the needle body installing column, of the needle body is sleeved with a blood-stopping sleeve. The upper end of the blood-stopping sleeve is connected to the lower end of the needle body installing column, and an installing portion is arranged on the external wall of the lower portion of the needle body installing column and used for fixing the needle body installing column to a needle base of the blood-taking device. The needle body installing column of the special blood-taking device needle is connected with the needle base of the blood-taking device in a clamped or screwed or inserted mode. The assembly-type blood taking needle has the advantages of being convenient to assemble, easy to use, high in reliability, good in safety and the like and is suitable for institutions needing blood taking in hospitals, sanitary stations and others.
Description
Technical field
The invention belongs to disposable blood taking needle technical field, refer in particular to a kind of packaging blood taking needle and hemostix, hemostix special needle.
Background technology
China Patent No. ZL201120463184.7 discloses a kind of pen type safe blood-taking needle, it comprises urceolus, be connected to the needle stand of urceolus inner end, to be bonded in the hole in the middle part of needle stand and to stretch out the syringe needle of urceolus, be socketed in the sheath on the injection port of urceolus end and the blood resistance unit being set in needle stand bottom, the taper surface of the end of urceolus is provided with open slot, the lower side of open slot forms unsettled screening glass to the top of open slot, needle stand has the flank of three abductions obliquely, needle stand is installed on the end of urceolus by flank, this patent has easy to assembly, use simple, reliability is high, the advantages such as safety is good, its weak point is, syringe needle and needle stand are integral type structure, and needle stand is the core of this technology, so the specification of the syringe needle of blood taking needle just determines when dispatching from the factory, in the medical use procedure of reality, the needle gauge of medical personnel to blood taking needle has different requirements.
Meanwhile, the different design of needle stand and syringe needle one closes the trend of the detailed-oriented and large-scale production of blood taking needle processing technique.
Summary of the invention
The object of this invention is to provide a kind of assembling simple, be convenient to produce, and replacing syringe needle can be carried out as required, safe and reliable packaging blood taking needle.
The object of the present invention is achieved like this:
A kind of hemostix special needle, comprise needle body erection column and the needle body being arranged on needle body erection column central authorities, the toe end up and down of needle body all stretches out needle body erection column, the top of needle body erection column is set with protective jacket, the needle body of the below of needle body erection column is arranged with blood resistance unit, the upper end of blood resistance unit is connected to the bottom of needle body erection column, the outer wall of needle body erection column bottom is provided with the installation portion be fixed on for needle body erection column on the needle stand of hemostix.
Preferably, described needle body erection column is transparent plastic product; Described needle body is made up of upper pin and lower needle body, and upper pin inserts needle body erection column from the upper end of needle body erection column, and lower needle body inserts needle body erection column from the lower end of needle body erection column; Upper and lower needle body keeps at a certain distance away, and is connected by the pre-manufactured hole in needle body erection column.
Preferably, described installation portion is threaded portion or barb or projecting ring section.
Preferably, form back-up ring in the middle part of described needle body erection column, the needle body erection column outer wall on back-up ring top forms the block in more than three roads, the lower edge of described upper protective jacket is against on back-up ring, the inwall of upper protective jacket bottom and the outer wall close-fitting of described block.
Preferably, the inwall of described upper protective jacket bottom forms some convex tendons, rotary spacing between convex tendon and described block.
A kind of hemostix, comprise urceolus and the needle stand being connected to urceolus inner end, the taper surface of the end of urceolus is provided with open slot, and the lower side of open slot forms unsettled screening glass to the top of open slot, and the inner side of the root of screening glass and the lower side of open slot, junction is provided with step; The side of needle stand forms the flank of three abductions obliquely, and the aerofoil of the first flank embeds in the open slot of urceolus end, and the lower end of another two flanks and the inwall of tapered of urceolus are fitted; The central authorities of described needle stand offer through hole, be provided with and coordinate with the installation portion on described needle body erection column and needle body erection column to be fixed on the installation position in needle stand in through hole; The inwall of urceolus bottom forms the gear slope stoping needle stand to eject urceolus, downside and the outer tube inner wall inclined-plane on gear slope are excessive; Outer tube inner wall on the upside of gear slope is provided with when needle stand is launched to gear slope place, pin base fastener is connected on the card muscle portion in urceolus.
Preferably, described card muscle portion is the slope that circumferential wide cut is greater than the circumferential wide cut of the first flank, and top, slope and outer tube inner wall seamlessly transit, under slope along with by the wing limit interference fit of needle stand first flank of launching to this position; Or,
Described card muscle portion is made up of identical convex tendons more than twice, convex tendon with by the wing limit interference fit of needle stand first flank of launching to this position, upper end and the outer tube inner wall of convex tendon seamlessly transit; Or,
Described card muscle portion is made up of the short muscle at left and right long muscle and middle part, left and right long muscle with by the wing limit interference fit of needle stand first flank of launching to this position, the short muscle at middle part can embed in the aerofoil groove of the first flank, the lower end of short muscle and the wing limit interference fit of the first flank.
A kind of packaging blood taking needle, comprises described hemostix special needle and described hemostix, the needle body erection column of hemostix special needle and the needle stand clamping of hemostix or be spirally connected or grafting.
The present invention gives prominence to compared to existing technology and useful technique effect is:
1, the present invention has carried out split-type design to existing blood taking needle, hemostix and hemostix special needle can by different manufacturer production, make the processing technique of blood taking needle more detailed-oriented, reduce the technical threshold that blood taking needle manufactures, process and assemble more convenient, being more conducive to large-scale production.
2, in actual use procedure of the present invention, medical personnel can select the hemostix special needle of required specification as required, and by hemostix special needle with carry out hemostix and combine, both employings are spirally connected or clamping or grafting (interference fit), and it is easy for installation.
3, needle body erection column of the present invention is transparent plastic product, and needle body is made up of upper pin and lower needle body, and upper pin inserts needle body erection column from the upper end of needle body erection column, and lower needle body inserts needle body erection column from the lower end of needle body erection column; Upper and lower needle body keeps at a certain distance away, and connected by the pre-manufactured hole in needle body erection column, this design makes blood taking needle in use, medical personnel can observe scene when blood flows through needle body erection column, when medical personnel's improper use causes blood can not enter blood taking needle (such as, needle body does not correctly insert in blood vessel), can save more timely.
The inwall of 4, urceolus bottom of the present invention forms gear slope, gear slope can stop needle stand to eject urceolus, and downside and the outer tube inner wall inclined-plane on gear slope are excessive, and this design is without the need to assembling back-up ring in addition, because three flanks of needle stand have elasticity, therefore and can directly needle stand be filled in from urceolus lower end; Outer tube inner wall on the upside of gear slope is provided with card muscle portion; When needle stand is launched to gear slope place, shorter the first flank of the span just can be against in described card muscle portion, and coordinate with two other flank and be fixed in urceolus by needle stand, thus the needle stand avoiding the blood taking needle after self-destruction is movable in urceolus, avoids syringe needle and exposes urceolus.
5, of the present invention have the advantages such as easy to assembly, use is simple, reliability is high, safety is good, is applicable to the mechanism that hospital, health station etc. need to carry out taking a blood sample.
Accompanying drawing explanation
Fig. 1 is the structure chart of hemostix special needle.
Fig. 2 is the explosive view of hemostix special needle.
Fig. 3 is the A place enlarged drawing of Fig. 2.
Fig. 4 is the schematic diagram of hemostix.
Fig. 5 is the assembling schematic diagram of hemostix and hemostix special needle.
Fig. 6 is the explosive view of blood taking needle.
Fig. 7 is the structure diagram of blood taking needle.
Fig. 8 is one of schematic diagram after blood taking needle self-destruction.
Fig. 9 is the schematic diagram two after blood taking needle self-destruction.
Figure 10 is the schematic diagram of needle stand.
Figure 11,12,13 is the schematic diagram of the urceolus of different embodiment.
Figure 14,15,16 is the needle body erection column of different embodiment and the schematic diagram of needle body.
Detailed description of the invention
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described, see Fig. 1-16;
Embodiment 1: a kind of packaging blood taking needle, comprises hemostix special needle and hemostix, hemostix special needle comprises needle body erection column 3 and is arranged on the needle body of needle body erection column 3 central authorities, and needle body erection column 3 is transparent plastic product; Described needle body is made up of upper pin 2 and lower needle body 4, and upper pin 2 inserts needle body erection column 3 from the upper end of needle body erection column 3, and lower needle body 4 inserts needle body erection column 3 from the lower end of needle body erection column 3; Upper and lower needle body 2,4 keep at a certain distance away, and connected by the pre-manufactured hole 33 in needle body erection column 3, this design makes blood taking needle in use, medical personnel can observe scene when blood flows through the pre-manufactured hole 33 of needle body erection column 3, when medical personnel's improper use causes blood can not enter blood taking needle (such as, upper pin 2 does not correctly insert in the blood vessel of human body), can save more timely;
The upper tip of upper pin, the lower tip part end of lower needle body all stretches out needle body erection column 3, the top of needle body erection column 3 is set with protective jacket 1, the lower needle body of the below of needle body erection column 3 is arranged with blood resistance unit 5, the upper end of blood resistance unit 5 is connected to the bottom of needle body erection column 3, the outer wall of needle body erection column 3 bottom is provided with the installation portion 32 be fixed on for needle body erection column 3 on the needle stand 6 of hemostix 200; Installation portion 32 is threaded portion 32a or barb 32b or projecting ring section 32c.
Form back-up ring 34 in the middle part of described needle body erection column 3, needle body erection column 3 outer wall on back-up ring 34 top forms the block 31 in more than three roads, the lower edge of described upper protective jacket 1 is against on back-up ring 34, the upper inwall of protective jacket 1 bottom and the outer wall close-fitting of described block 31.
The inwall of described upper protective jacket 1 bottom forms some convex tendons 11, rotary spacing between convex tendon 11 and described block 31, this design is: when described installation portion 32 is for threaded portion 32a at once, protective jacket 1 in rotation, convex tendon 11 coordinates with block 31 needle body erection column 3 is together rotated, and is convenient to the needle stand 6 needle body erection column 3 being screwed in hemostix 200.
The needle body erection column of hemostix special needle and the needle stand clamping of hemostix or be spirally connected or grafting.
Described hemostix comprises urceolus 7 and is connected to the needle stand 6 of urceolus 7 inner end, the taper surface of the end of urceolus 7 is provided with open slot, the lower side of open slot forms unsettled screening glass 71 to the top of open slot, and the inner side of the root of screening glass 71 and the lower side of open slot, junction is provided with step; The aerofoil that the side of needle stand 6 forms three flank 62,63,64, first flanks 62 of abduction obliquely embeds in the open slot of urceolus 7 end, and the lower end of another two flanks and the inwall of tapered of urceolus 7 are fitted; The central authorities of described needle stand 6 offer through hole, be provided with and coordinate with the installation portion 32 on described needle body erection column and needle body erection column to be fixed on the installation position 31 in needle stand 6 in through hole; The inwall of urceolus 7 bottom forms and stops needle stand 6 to eject the gear slope 8 of urceolus 7, the downside on gear slope 8 is excessive with urceolus 7 inwall inclined-plane, and this design is convenient to needle stand 6 when assembling and is inserted in urceolus 7; Urceolus 7 inwall on the upside of gear slope is provided with when needle stand 6 is launched to gear slope place, needle stand 6 is connected to the card muscle portion 72 in urceolus 7, card muscle portion 72 is positioned at immediately below screening glass 71; Installation position 31 is screwed hole or step groove or concave ring groove, and screwed hole coordinates with the threaded portion 32a on the needle body erection column 3 in Figure 14; Barb 32b snap-fit engagement in step groove and Figure 15; Concave ring groove coordinates with projecting ring section 32c, it is noted that installation position 31 and needle body erection column 3 also have other fit system; But the essential object of these modes is identical, exactly needle body erection column 3 is stabilized in installation position 31.
Described card muscle portion 72 is the slope 72b that circumferential wide cut is greater than the circumferential wide cut of the first flank 62,72b top, slope and the transition of urceolus 7 interior walls be smooth, under the 72b of slope along with by the wing limit interference fit of needle stand 6 first flank 62 of launching to this position, during self-destruction, the lower edge that needle stand 6 launches downwards to the second flank 63 and the 3rd flank 64 is against edge on gear slope 8, now, the outer 622 on the downside of the first flank 62 be against slope 72b domatic on, needle stand 6 is stuck.
Embodiment 2: the present embodiment is substantially the same manner as Example 1, its difference is, the aerofoil of the first flank 62 of the needle stand of described hemostix is provided with more than one groove 621, urceolus 7 inwall slope 72b domatic on be provided with more than one with the block reinforcement 72c of described fit depressions; When in bullet process under needle stand; When lower bullet is complete, second flank 63 of needle stand and the lower edge of the 3rd flank 64 are against edge on gear slope 8, outer 622 on the downside of first flank 62 is against the slope 72b domatic upper (outer 622 and the domatic interference fit of slope 72b) on the downside of block reinforcement 72c, block reinforcement 72c snaps in the aerofoil groove 621 of the first flank 62, the requirement on machining accuracy of this design to mould is higher, but the better effects if be connected in urceolus of needle stand 6;
Embodiment 3: the present embodiment is substantially the same manner as Example 1, its difference is, the card muscle portion 72 of described hemostix can be made up of identical convex tendon 72a more than twice, convex tendon 72a with by outer 622 interference fit of launching on the downside of needle stand 6 first flank 62 of this position, the upper end of convex tendon 72a and the transition of urceolus 7 interior walls be smooth, in this design, the combined effect of multiple tracks convex tendon 72a is substantially identical with slope 72b effect, its advantage is, owing to being multiple tracks convex tendon 72a, what itself and outer on the downside of the first flank 62 622 were multiple point and face coordinates, the frictional resistance that under needle stand, bullet is subject to is little, make lower bullet more smooth and easy, and when playing complete under needle stand, outer 622 on the downside of first flank 62 is better with the limit effect of convex tendon 72a.
In the design, the self-destruction principle of needle stand and urceolus is introduced in detail in pen type safe blood-taking needle a kind of disclosed in ZL201120463184.7.
It should be noted that, the hemostix special needle in the present invention can be sold separately, and the outer wall of upper protective jacket 1 bottom of the hemostix special needle of selling separately is provided with step 12, and step 12 inserts the upper end also clamping with it of lower protective jacket 9; The inwall matched with described step 12 of described lower protective jacket 9 upper end forms upper and lower twice bulge loop 91,92, and twice bulge loop 91,92 is provided with breach 93, and two breach 93 are positioned at the not homonymy of lower protective jacket 9; The inwall of described lower protective jacket 9 upper end forms the convex tendon 94 or step surface that coordinate with the downside of described back-up ring, the design of convex tendon 94 is to prevent in the handling process of hemostix special needle, needle body erection column 3 loosens, the lower back-up ring 34 along coordinating clamping needle body erection column 3 of convex tendon 94 and upper protective jacket 1; Twice bulge loop 91, the design of 92 makes the clamping of lower protective jacket 9 and upper protective jacket 1 stablize, and the design of breach 93 makes chamber in lower protective jacket 9 and extraneous conducting, and lower protective jacket 9 is with the grafting of upper protective jacket 1 or when being separated, all do not need to overcome atmospheric pressure, make processing ease; Meanwhile, twice breach is positioned at the not homonymy of lower protective jacket 9, can not impact the stability of lower protective jacket 9 and upper protective jacket 1 clamping.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalence changes done according to structure of the present invention, shape, principle, all should be covered by within protection scope of the present invention.
Claims (3)
1. a packaging blood taking needle, it is characterized in that, comprise hemostix special needle and hemostix, hemostix special needle comprises needle body erection column and is arranged on the needle body of needle body erection column central authorities, the toe end up and down of needle body all stretches out needle body erection column, the top of needle body erection column is set with protective jacket, the needle body of the below of needle body erection column is arranged with blood resistance unit, the upper end of blood resistance unit is connected to the bottom of needle body erection column, the outer wall of needle body erection column bottom is provided with the installation portion be fixed on for needle body erection column on the needle stand of hemostix;
Described needle body erection column is transparent plastic product; Described needle body is made up of upper pin and lower needle body, and upper pin inserts needle body erection column from the upper end of needle body erection column, and lower needle body inserts needle body erection column from the lower end of needle body erection column; Upper and lower needle body keeps at a certain distance away, and is connected by the pre-manufactured hole in needle body erection column; Described installation portion is threaded portion or barb or projecting ring section;
Form back-up ring in the middle part of described needle body erection column, the needle body erection column outer wall on back-up ring top forms the block in more than three roads, the lower edge of described upper protective jacket is against on back-up ring, the inwall of upper protective jacket bottom and the outer wall close-fitting of described block;
The inwall of described upper protective jacket bottom forms some convex tendons, rotary spacing between convex tendon and described block;
The needle body erection column of hemostix special needle and the needle stand clamping of hemostix or be spirally connected or grafting.
2. the packaging blood taking needle of one according to claim 1, it is characterized in that: described hemostix comprises urceolus and is connected to the needle stand of urceolus inner end, the taper surface of the end of urceolus is provided with open slot, the lower side of open slot forms unsettled screening glass to the top of open slot, and the inner side of the root of screening glass and the lower side of open slot, junction is provided with step; The side of needle stand forms the flank of three abductions obliquely, and the aerofoil of the first flank embeds in the open slot of urceolus end, and the lower end of another two flanks and the inwall of tapered of urceolus are fitted; The central authorities of described needle stand offer through hole, be provided with and coordinate with the installation portion on described needle body erection column and needle body erection column to be fixed on the installation position in needle stand in through hole; The inwall of urceolus bottom forms the gear slope stoping needle stand to eject urceolus; Outer tube inner wall on the upside of gear slope is provided with when needle stand is launched to gear slope place, pin base fastener is connected on the card muscle portion in urceolus.
3. the packaging blood taking needle of one according to claim 2, it is characterized in that: described card muscle portion is the slope that circumferential wide cut is greater than the circumferential wide cut of the first flank, top, slope and outer tube inner wall slope are excessive, under slope along with by the wing limit interference fit of needle stand first flank of launching to this position; Or,
Described card muscle portion is made up of identical convex tendons more than twice, convex tendon with by the wing limit interference fit of needle stand first flank of launching to this position, upper end and the outer tube inner wall slope of convex tendon are excessive; Or,
Described card muscle portion is the slope that circumferential wide cut is greater than the circumferential wide cut of the first flank, top, slope and outer tube inner wall slope excessive, the aerofoil of the first flank of needle stand is provided with more than one groove, under slope along with by the wing limit interference fit of needle stand first flank of launching to this position, slope domatic on be provided with more than one with the block reinforcement of described fit depressions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310391655.1A CN103405237B (en) | 2013-09-02 | 2013-09-02 | A kind of hemostix, hemostix special needle and packaging blood taking needle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310391655.1A Division CN103405237B (en) | 2013-09-02 | 2013-09-02 | A kind of hemostix, hemostix special needle and packaging blood taking needle |
Publications (1)
| Publication Number | Publication Date |
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| CN105054948A true CN105054948A (en) | 2015-11-18 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510557694.3A Pending CN105054948A (en) | 2013-09-02 | 2013-09-02 | Assembly-type blood taking needle |
| CN201310391655.1A Active CN103405237B (en) | 2013-09-02 | 2013-09-02 | A kind of hemostix, hemostix special needle and packaging blood taking needle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310391655.1A Active CN103405237B (en) | 2013-09-02 | 2013-09-02 | A kind of hemostix, hemostix special needle and packaging blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105054948A (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871355A (en) * | 1988-05-17 | 1989-10-03 | Steven Kikkawa | Injury resistant needle and blood collection tube holder |
| CN1520779A (en) * | 2003-01-28 | 2004-08-18 | 陈晖� | Safe vacuum syringe for drawing out blood |
| JP2008099991A (en) * | 2006-10-20 | 2008-05-01 | Olympus Corp | Blood collection device |
| CN101926649A (en) * | 2010-09-03 | 2010-12-29 | 威海鸿宇医疗器械有限公司 | Visible blood-back blood taking needle |
| CN103006241A (en) * | 2011-09-20 | 2013-04-03 | 上海兰音同医疗科技有限公司 | Safe blood taking needle |
| CN202335866U (en) * | 2011-11-19 | 2012-07-18 | 蔡龙 | Pen-type safe blood taking needle |
| CN202426970U (en) * | 2011-12-31 | 2012-09-12 | 蔡根顺 | Syringe provided with separable needle tip |
| CN202654501U (en) * | 2012-05-03 | 2013-01-09 | 蔡根顺 | Push-out self-destruction type syringe |
| CN202666124U (en) * | 2012-06-30 | 2013-01-16 | 蔡根顺 | Pneumatic retractable self-destruction syringe |
| CN203138505U (en) * | 2012-11-09 | 2013-08-21 | 汪贤宗 | Safe blood-sampling apparatus |
| CN203555742U (en) * | 2013-09-02 | 2014-04-23 | 蔡根顺 | Blood taking device, special-purpose needle for blood taking device and assembly type blood taking needle |
-
2013
- 2013-09-02 CN CN201510557694.3A patent/CN105054948A/en active Pending
- 2013-09-02 CN CN201310391655.1A patent/CN103405237B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103405237A (en) | 2013-11-27 |
| CN103405237B (en) | 2015-10-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |
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| WD01 | Invention patent application deemed withdrawn after publication |