CN103006241A - Safe blood taking needle - Google Patents
Safe blood taking needle Download PDFInfo
- Publication number
- CN103006241A CN103006241A CN 201110279830 CN201110279830A CN103006241A CN 103006241 A CN103006241 A CN 103006241A CN 201110279830 CN201110279830 CN 201110279830 CN 201110279830 A CN201110279830 A CN 201110279830A CN 103006241 A CN103006241 A CN 103006241A
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- needle
- cylindrical shell
- spring
- cone
- needle stand
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Abstract
The invention discloses a safe blood taking needle, which is characterized in that the upper part of a barrel body is a cone; the cone is provided with a press key; a strip-shaped gap is formed on the barrel body wall on the lower part of the press key; the barrel body on the upper part of the cone is cylindrical; a cylinder is formed in the center of a needle bed; a spring assembling platform is formed on the bottom of the cylinder; a spacing ring body is formed on the surface of the spring assembling platform; an annular step is formed on the edge of the spring assembling platform on the outer side of the spacing ring body; a notch is formed on the spring assembling platform; and an elastic stator is formed in the notch. According to the safe blood taking needle, an individual built-in spring is adopted, the integral retraction of the needle bed part is realized by the expansion force of the spring, the static locking structure of the needle bed is damaged in a pressing mode, and the safe blood taking needle can be operated with one hand. The inside of the barrel body is provided with a needle bed locking mechanism which can be used for spacing and fixing the retracted needle bed so as to realize the safe operation of the blood taking needle. The product has the advantages of reasonable integral design and artful concept, each component is precisely cooperated, automatic assembling in one time can be realized, and the safe blood taking needle has a good practicality.
Description
Technical field
The present invention relates to the technical field of medical apparatus and instruments, specifically a kind of safe blood-taking needle, particularly its mechanical connecting structure.
Background technology
Documents, application number: 201010622685.5, applicant: Zhang Yaping, the applying date: 2010.12.27, this case discloses a kind of Novel pen type safe blood-taking needle, is comprised of needle tubing, spring, needle stand, blood resistance unit, urceolus, button and sheath; It is characterized in that: the central porose interior bonding needle tubing of needle stand, the needle stand hypomere has the spring supporting platform, its periphery pocketed springs, the nearly middle part of support platform, the outer square pylon of inner circle is vertically upward arranged, and internal aperture is slightly larger than spring outer diameter, and there is symmetrical fluting in the stage casing of pylon; The front end of urceolus has conehead, the conehead endoporus dwindles and communicates with outer tube inner chamber at opening part, at the conehead basilar part symmetrical fluting is arranged, in the urceolus front wall surfaces several projections are arranged, the middle hypomere of the lock banking stop of button has square hole, crack along having under the square hole, along curved expansion, the arc radius equals the radius of conehead hypomere periphery on the square hole.
Disclose a kind of pen type safe blood-taking needle in the above-mentioned documents, be not difficult to find out from above-mentioned disclosed content, this kind of safe blood-taking needle complicated structure, built-in spring need to carry out the secondary assembling, are unfavorable for the full-automatic assembling of product.
Summary of the invention
The object of the present invention is to provide a kind of safe blood-taking needle, it adopts built-in spring structure to realize the needle holder pumpback, utilize the inner annular position-limit mechanism to realize the locking of needle stand, realize the safety operation of blood taking needle, product can be realized automatization's assembling, has overcome the shortcoming and defect that exists in the prior art.
To achieve these goals, technical scheme of the present invention is: a kind of safe blood-taking needle, it mainly comprises cylindrical shell, be provided with needle stand in the cylindrical shell, the needle stand centre bit is provided with needle tubing, needle tubing runs through needle stand, and the two ends of needle tubing all form the thorn point, and it is characterized in that: the top of described cylindrical shell is cone, the cone place is provided with pressing key, the barrel wall place of pressing key bottom forms the strip gap, and the cylindrical shell on cone top becomes cylinder, is formed centrally cylinder in the described needle stand, the spring mounting plate is formed on the bottom of cylinder, spring mounting plate surface forms spacing ring body, and the spring mounting plate edge of the external side of spacing ring forms ring-shaped step, and spring mounting plate place forms breach, form the flexible fastening sheet in the breach, flexible fastening sheet place forms the arc chimb, and arc chimb lower limb forms reverse step, and curve slope is formed at arc chimb top, spring housing is connected to the cylinder outside, one end of spring props up spring mounting plate surface, and the other end of spring props up cylinder inboard wall, and the arc chimb is positioned at the strip gap.
The invention discloses a kind of safe blood-taking needle, it adopts the built-in spring of single-body type, utilize the expansionary force of spring to realize the whole retraction of needle stand section, the utilization mode of pressing is destroyed the static locking structure of needle stand, one-hand operation, inner barrel is provided with the needle stand locking mechanism, can the needle stand behind the retraction be fixed, realize the safety operation of blood taking needle, the product global design is reasonable, be skillfully constructed, each parts cooperates accurate, can realize automatization's assembling, has good practicality, compared to existing technologies, have outstanding substantive distinguishing features and marked improvement.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is general assembly drawing of the present invention.
Fig. 3 is the partial enlarged drawing of Fig. 1.
Fig. 4 is the present invention the first user mode figure.
Fig. 5 is that the present invention second uses shape body figure.
Fig. 6 is that the present invention the 3rd uses shape body figure.
Fig. 7 is tube structure sketch map of the present invention.
Fig. 8 is spring structure sketch map of the present invention.
Fig. 9 is needle tubing structural representation of the present invention.
Figure 10 is jacket structure sketch map of the present invention.
Figure 11 is blood resistance unit structural representation of the present invention.
Figure 12 is needle stand structure sketch map of the present invention.
Figure 13 is needle stand the first axonometric chart of the present invention.
Figure 14 is needle stand the second axonometric chart of the present invention.
Figure 15 is needle stand the 3rd axonometric chart of the present invention.
Figure 16 is cylindrical shell axonometric chart of the present invention.
Figure 17 is cylindrical shell part sectioned view of the present invention.
Figure 18 is needle stand part sectioned view of the present invention.
The specific embodiment
With reference to the accompanying drawings, the present invention further is described.
The present invention is a kind of safe blood-taking needle, as shown in fig. 1, it mainly comprises cylindrical shell 1, be provided with needle stand 2 in the cylindrical shell 1, needle stand 2 centre bits are provided with needle tubing 3, needle tubing 3 runs through needle stand 2, the two ends of needle tubing 3 all form the thorn point, it is different from prior art and is: the top of described cylindrical shell 1 is cone 4, cone 4 places are provided with pressing key 5, the cylindrical shell 1 wall place of pressing key 5 bottoms forms strip gap 6,1 one-tenth cylinder of cylindrical shell 7 on cone 4 tops, be formed centrally cylinder 8 in the described needle stand 2, spring mounting plate 9 is formed on the bottom of cylinder 8, spring mounting plate 9 surfaces form spacing ring body 10, spring mounting plate 9 edges in spacing ring body 10 outsides form ring-shaped step 11, spring mounting plate 9 places form breach 12, breach 12 interior formation flexible fastening sheets 13, flexible fastening sheet 13 places form arc chimb 14, and arc chimb 14 lower limbs form reverse step 15, and curve slope 16 is formed at arc chimb 14 tops, spring 17 is socketed on cylinder 8 outsides, one end of spring 17 props up spring mounting plate 9 surfaces, and the other end of spring 17 props up cylindrical shell 1 inwall, and arc chimb 14 is positioned at strip gap 6.
In the specific implementation, an end of described needle tubing 3 is provided with sheath 18, and the other end of needle tubing 3 is provided with blood resistance unit 19.
In the specific implementation, cone 4 inwalls of described cylindrical shell 1 form ring-type lower limit step 20 near the place, bottom, and the cone 4 inwall places on lower limit step 20 tops form ring-type upper limit step 21.
In the specific implementation, described cylindrical shell 1 inwall forms the spacing ring body 22 of needle stand near the lower openings place, and the cylindrical shell 1 inwall place on the spacing ring body of needle stand 22 tops forms the spacing annular recess 23 of needle stand.
As shown in Fig. 4 to Fig. 6, during original state, needle stand is positioned at the cone inner chamber of cylindrical shell, vacuum test tube 24 is inserted in the cylindrical shell from the rear portion, promote forward blood taking tube, the terminal spine tip is pricked blood resistance unit and is worn and insert in the vacuum test tube under the needle tubing, at this moment, and under suction function, blood is sucked in the blood sampling body, after finishing blood sampling, blood taking tube is extracted, blood resistance unit resets, with lower end needle tubing thorn tip parcel, singlehanded with thumb flicking pressing key, the arc chimb of flexible fastening sheet and cylindrical shell break away from, at this moment, needle stand is under the effect of spring reset power, to the cylindrical shell lower ending opening to flicking, in the spacing annular recess of the edge part stuck needle stand at cylinder inboard wall of meeting of needle stand, realize the safety operation of blood taking needle.
Above content is the further description of the present invention being done in conjunction with concrete preferred implementation, can not assert that implementation of the present invention is confined to above-mentioned these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. safe blood-taking needle, it mainly comprises cylindrical shell (1), be provided with needle stand (2) in the cylindrical shell (1), needle stand (2) centre bit is provided with needle tubing (3), needle tubing (3) runs through needle stand (2), the two ends of needle tubing (3) all form the thorn point, it is characterized in that: the top of described cylindrical shell (1) is cone (4), cone (4) locates to be provided with pressing key (5), cylindrical shell (1) the wall place of pressing key (5) bottom forms strip gap (6), the cylindrical shell (1) on cone (4) top becomes cylinder (7), be formed centrally cylinder (8) in the described needle stand (2), spring mounting plate (9) is formed on the bottom of cylinder (8), spring mounting plate (9) surface forms spacing ring body (10), spring mounting plate (9) edge in spacing ring body (10) outside forms ring-shaped step (11), spring mounting plate (9) locates to form breach (12), form flexible fastening sheet (13) in the breach (12), flexible fastening sheet (13) locates to form arc chimb (14), arc chimb (14) lower limb forms reverse step (15), curve slope (16) is formed at arc chimb (14) top, spring (17) is socketed on cylinder (8) outside, one end of spring (17) props up spring mounting plate (9) surface, the other end of spring (17) props up cylindrical shell (1) inwall, and arc chimb (14) is positioned at strip gap (6).
2. a kind of safe blood-taking needle according to claim 1, it is characterized in that: an end of described needle tubing (3) is provided with sheath (18), and the other end of needle tubing (3) is provided with blood resistance unit (19).
3. a kind of safe blood-taking needle according to claim 1, it is characterized in that: cone (4) inwall of described cylindrical shell (1) forms ring-type lower limit step (20) near the place, bottom, and cone (4) the inwall place on lower limit step (20) top forms ring-type upper limit step (21).
4. a kind of safe blood-taking needle according to claim 1, it is characterized in that: described cylindrical shell (1) inwall forms the spacing ring body of needle stand (22) near the lower openings place, and cylindrical shell (1) the inwall place on the spacing ring body of needle stand (22) top forms the spacing annular recess of needle stand (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279830 CN103006241A (en) | 2011-09-20 | 2011-09-20 | Safe blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279830 CN103006241A (en) | 2011-09-20 | 2011-09-20 | Safe blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103006241A true CN103006241A (en) | 2013-04-03 |
Family
ID=47955732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110279830 Pending CN103006241A (en) | 2011-09-20 | 2011-09-20 | Safe blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103006241A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405237A (en) * | 2013-09-02 | 2013-11-27 | 蔡根顺 | Blood taking device, dedicated needle thereof and assembling type blood taking needle |
| WO2021000440A1 (en) * | 2019-07-02 | 2021-01-07 | 北京华视诺维医疗科技有限公司 | Aqueous humor collection device and aqueous humor collection method |
| WO2023272434A1 (en) * | 2021-06-28 | 2023-01-05 | 福州康利特医疗器械有限公司 | Pen-type blood collection needle storage device |
-
2011
- 2011-09-20 CN CN 201110279830 patent/CN103006241A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405237A (en) * | 2013-09-02 | 2013-11-27 | 蔡根顺 | Blood taking device, dedicated needle thereof and assembling type blood taking needle |
| WO2021000440A1 (en) * | 2019-07-02 | 2021-01-07 | 北京华视诺维医疗科技有限公司 | Aqueous humor collection device and aqueous humor collection method |
| WO2023272434A1 (en) * | 2021-06-28 | 2023-01-05 | 福州康利特医疗器械有限公司 | Pen-type blood collection needle storage device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |