CN201949013U - Disposable sterile blood taking needle - Google Patents
Disposable sterile blood taking needle Download PDFInfo
- Publication number
- CN201949013U CN201949013U CN2011200302624U CN201120030262U CN201949013U CN 201949013 U CN201949013 U CN 201949013U CN 2011200302624 U CN2011200302624 U CN 2011200302624U CN 201120030262 U CN201120030262 U CN 201120030262U CN 201949013 U CN201949013 U CN 201949013U
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- CN
- China
- Prior art keywords
- needle
- needle body
- blood taking
- medicated cap
- sterile blood
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- Expired - Fee Related
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Abstract
The utility model relates to a disposable sterile blood taking needle which comprises a needle tube, a needle body, a telescopic cap, springs and a gland. The disposable sterile blood taking needle is characterized in that the springs are compression springs, two compression springs are provided and are respectively sleeved at the two ends of the needle body, the front end of the needle guard is a flat head where a circumferential bulge is arranged, a cap is arranged at the front part of the needle tube, a clamping sleeve is arranged in the cap, a circumferential slot is formed in the clamping sleeve and is matched with the circumferential bulge at the front end of the needle guard. The disposable sterile blood taking needle has the advantages that compared with the prior blood taking needle, the feeling of pain of a patient during blood taking can be reduced, and the blood taking needle is easy to assemble; the blood taking needle is easy and convenient to use and operate, and the cap can prevent the telescopic cap from being accidentally touched and pressed, causing the needle body of the blood taking needle to be ejected out.
Description
Technical field
This utility model belongs to the medical apparatus technical field, particularly relates to a kind of disposable use sterile blood sampling pin.
Background technology
At present, blood taking needle has multiple mode on the market, and wherein blood taking needle is a kind of comparatively advanced employing utensil, has and waits advantage easily and fast.The disposable blood taking device that existing each factory on the market produces all is with the power source of compression spring as the inserting needle and the withdraw of the needle, and the overwhelming majority adopts a compression spring to realize two actions of the hemostix inserting needle and the withdraw of the needle.A this spring driven hemostix, spring not only will have compressed action, and need the action that stretches, so when hemostix was installed, two ends of spring must be fixed, hemostix assembling mounting hardness is big, in addition, when the compression spring uses as extension spring, can reduce the inserting needle speed of syringe needle, the pain when the increase patient takes a blood sample.
Above-mentioned blood taking needle is disposable use, on the needle point of blood taking needle needle guard is installed, and during use, needle guard rotation need be made it to disconnect with needle body and is connected, extracts needle guard and exposes needle point, and still, reason such as meticulous or user hands cunning is extracted the needle guard difficulty usually owing to needle guard; The anterior not block of existing blood taking needle, the flexible medicated cap of blood taking needle does not leak outside when using, if accident presses flexible medicated cap the needle body of blood taking needle is ejected, and blood taking needle is scrapped.
Summary of the invention
This utility model provides a kind of disposable use sterile blood sampling pin of simple in structure, easy to assembly, easy to use and pain can reduce patient and take a blood sample the time for solving the technical problem that exists in the known technology.
The technical scheme that this utility model is taked for the technical problem that exists in the solution known technology is: a kind of disposable use sterile blood sampling pin, comprise needle tubing, needle body, flexible medicated cap, spring and gland, described needle body is provided with pin, needle point is provided with needle guard, described needle body, spring and flexible medicated cap are arranged on needle tubing inside, one end of flexible medicated cap stretches out from the front portion of needle tubing, described gland interference fit is installed in the rear portion of needle tubing, the front end of needle guard stretches out from the external part of flexible medicated cap, it is characterized in that: described spring is the compression spring, and the quantity of compression spring is two, two compression springs are set in the two ends of needle body, the front end of described needle guard is flat head, flat head is provided with circumferential projection, and the front portion of needle tubing is provided with block, and block inside is provided with cutting ferrule, be provided with circumferential draw-in groove in the cutting ferrule, circumferentially draw-in groove cooperates with the axial projection of needle guard front end.
This utility model can also adopt following technical scheme:
Described needle interior wall is provided with the chute that needle body slides, and the chute front end has positioning edge, and the needle body front end has lozenges, and flexible medicated cap has angled end-face corresponding with the needle body lozenges.
Described needle tubing is cylindrical shape, square or prismatic.
Described needle tubing cylindrical external surface is provided with the anti-rolling plane.
Described block is circular, square or prismatic.
Described block rounded outer surface is provided with anti-slip plane.
Cutting ferrule in the described block has two symmetrical cambered surfaces and two symmetrical planes, and two symmetric planes are provided with the opening dashpot, and two symmetrical cambered surface inboards are provided with circumferential draw-in groove.
Advantage and the good effect that the utlity model has are: because as above technical scheme of this novel employing, at the two ends of needle body suit compression spring, during the blood taking needle assembling, only need two compression spring housings are contained on the two ends of needle body, the two ends of compression spring need not fixed, the blood taking needle assembling easily, in addition, during the needle body inserting needle, the compression spring action of blood taking needle bottom, compare existing needle body top compression spring stretching action, can accelerate the needle body inserting needle speed of blood taking needle, reduce the pain that blood taking needle brings to patient.
The needle tubing front portion of blood taking needle is provided with block, and block inside is provided with cutting ferrule, is provided with circumferential draw-in groove in the cutting ferrule, and circumferentially draw-in groove cooperates with the axial projection of needle guard front end.When using blood taking needle, the rotation block, the needle guard that is connected with block inner card cover can together rotate with block, the pulling block, needle guard can be extracted from the needle point of blood taking needle, processing ease, convenient, and block can prevent that accident from pressing flexible medicated cap and the needle body of blood taking needle is ejected.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of needle body and flexible medicated cap in this utility model;
Fig. 3 is that the A-A that blocks a shot among Fig. 1 is to sketch map;
Fig. 4 is that the B-B of needle tubing among Fig. 1 is to sketch map.
Among the figure: 1, needle tubing; 1-1, chute; 1-2, positioning edge; 2, needle body; 2-1, lozenges; 3, flexible medicated cap; 3-1, needle body sliding tray; 4, spring; 5, gland; 6, needle guard; 6-1, axial projection; 7, block; 7-1, cutting ferrule; 7-1-1, circumferential draw-in groove; 7-1-2, opening dashpot.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-Fig. 4, disposable use sterile blood sampling pin comprises needle tubing 1, needle body 2, flexible medicated cap 3, spring 4 and gland 5.Needle body 2 is arranged in the needle tubing 1, is embedded with pin (not expressing among the figure) on the needle body, suit needle guard 6 on the needle point.Needle tubing 1 inwall is provided with the chute 1-1 that needle body slides, and chute 1-1 front end has positioning edge 1-2, the two ends pocketed springs 4 of needle body 2, and spring 4 is the compression spring.The top interference fit of needle tubing 1 is installed gland 5, and the front end of needle tubing 1 is equipped with compression cap 3, and the spring 4 of needle body 2 upper ends is arranged between gland 5 and the needle body 2, and the spring 4 of needle body 2 lower ends is arranged between needle body 2 and the compression cap 3.Needle body 2 front ends have lozenges 2-1, flexible medicated cap 3 has angled end-face corresponding with the lozenges 2-1 of needle body 2, flexible medicated cap 3 is positioned at positioning edge 1-2 one side when installing with needle body 2, when flexible medicated cap 3 is pressed into and promotes needle body 2 and move to positioning edge 1-2 end during use, the opposite side that needle body 2 rotates to positioning edge 1-2 is ejected by the spring 4 that is sleeved on needle body 2 upper ends, needle point is exposed from needle tubing 1 front end, needle body 2 leans on the inertia inserting needle and presses the spring 4 of needle body 2 bottoms, needle body 2 inserting needles are during to extreme position, and the spring 4 of compressed needle body 2 lower ends drives needle bodies 2 withdraws of the needle.On the flexible medicated cap 3 needle body sliding tray 3-1 is arranged, when needle body 2 rotated to the opposite side of positioning edge 1-2, flexible medicated cap 3 was sleeved on the needle body 2.
Be embedded with pin on the needle body 2, needle point is provided with needle guard 6.Needle guard 6 front ends have flat head, flat head is provided with circumferential projection 6-1, rotate flat mode and disconnect being connected of needle guard 6 and needle body 2, extract needle guard 6 and can expose needle point, needle tubing 1 front portion is provided with block 7,7 inside of blocking a shot are provided with cutting ferrule 7-1, be provided with circumferential draw-in groove 7-1-1 in the cutting ferrule 7-1, circumferentially draw-in groove 7-1-1 cooperates with the axial projection 6-1 of needle guard 6 front ends and clamps, rotation block 7, the needle guard 6 that is connected with block 7 inner cutting ferrule 7-1 can together rotate with block 7, pulling block 7, and needle guard 6 can be extracted from the needle point of blood taking needle.Cutting ferrule 7-1 in the block 7 has two symmetrical cambered surfaces and two symmetrical planes, circumferentially draw-in groove 7-1-1 is positioned at two symmetrical cambered surface inboards, two symmetric planes are provided with opening dashpot 7-1-2, and the axial projection 6-1 of needle guard 6 front ends clamped and enters in the cutting ferrule 7-1 when opening dashpot 7-1-2 helped the blood taking needle assembling.
The loose length that is positioned at the spring 4 of needle body 2 upper ends is the size of the needle point retraction needle tubing that keeps needle body 2, is the length between needle body 2 lower ends and flexible medicated cap 3 tops in the needle point retraction needle tubing of needle body 2 time in the relaxed length of the spring 4 of needle body 2 lower ends.Needle tubing 1 is a cylindrical shape, and in the present embodiment, needle tubing 1 is the taper cylindrical shape, and the outer surface of taper cylinder is provided with two planes of anti-rolling; Block 7 is circular, and block 7 is provided with anti-slip plane, and the person of being easy to use is screwed block 7.
The installation of present embodiment and use:
During installation: needle body 2 two ends pocketed springs 4, needle body 2 front end lozenges 2-1 are corresponding with flexible medicated cap 3 angled end-faces, and flexible medicated cap 3 is positioned at positioning edge 1-2 one side when installing with needle body 2, under the elastic force effect of needle body 2 upper end springs 4, needle body 2 promotes flexible medicated cap 3, makes flexible medicated cap 3 expose needle tubing 1.
During use: screw block 7 and drive needle guards 6 and needle guard 6 is extracted expose needle point, holding needle tubing 1 makes flexible medicated cap 3 aim at blood sampling site, thereby pushing needle tubing 1 is to the intrinsic pressure medicated cap 3 that stretches that pushes away, and then promotion needle body 2 moves, spring 4 between compression needle body 2 and the gland 5, when treating that needle body 2 moves to positioning edge 1-2 end, the opposite side that needle body 2 rotates to positioning edge 1-2 is ejected by the spring between needle body 2 and gland 54, needle point is exposed from needle tubing 1 front end, and the spring 4 between needle body 2 lower ends and flexible medicated cap 3 is compressed.Flexible medicated cap 3 has needle body sliding tray 3-1, when needle body 2 rotates to the opposite side of positioning edge 1-2, the angled end-face of flexible medicated cap 3 and the lozenges 2-1 of needle body 2 stagger, the lozenges of needle body 2 partly enters in the needle body sliding tray 3-1 of flexible medicated cap 3, flexible medicated cap 3 is sleeved on the needle body 2, the needle point bullet of needle body 2 exposes flexible medicated cap 3 and needle tubing 1, realizes the blood taking needle function.After treating that needle point ejects needle tubing 1, the spring 4 between needle body 2 lower ends and flexible medicated cap 3 drives needle body 2 withdraws of the needle, thereby makes in the needle point retraction needle tubing 1.Needle tubing 1 is the cylindrical shape of taper, and cylindrical external surface is provided with two planes, can prevent effectively that blood taking needle from rolling, and is convenient to place and conveniently screw block 7.
Claims (7)
1. disposable use sterile blood sampling pin, comprise needle tubing, needle body, flexible medicated cap, spring and gland, described needle body is provided with pin, needle point is provided with needle guard, described needle body, spring and flexible medicated cap are arranged on needle tubing inside, one end of flexible medicated cap stretches out from the front portion of needle tubing, described gland interference fit is installed in the rear portion of needle tubing, the front end of needle guard stretches out from the external part of flexible medicated cap, it is characterized in that: described spring is the compression spring, and the quantity of compression spring is two, and two compression springs are set in the two ends of needle body, the front end of described needle guard is flat head, flat head is provided with circumferential projection, and the front portion of needle tubing is provided with block, and block inside is provided with cutting ferrule, be provided with circumferential draw-in groove in the cutting ferrule, circumferentially draw-in groove cooperates with the axial projection of needle guard front end.
2. disposable use sterile blood sampling pin according to claim 1 is characterized in that: described needle interior wall is provided with the chute that needle body slides, and the chute front end has positioning edge, and the needle body front end has lozenges, and flexible medicated cap has angled end-face corresponding with the needle body lozenges.
3. disposable use sterile blood sampling pin according to claim 1 is characterized in that: described needle tubing is cylindrical shape, square or prismatic.
4. disposable use sterile blood sampling pin according to claim 3, it is characterized in that: described needle tubing cylindrical external surface is provided with the anti-rolling plane.
5. disposable use sterile blood sampling pin according to claim 1, it is characterized in that: described block is circular, square or prismatic.
6. disposable use sterile blood sampling pin according to claim 5 is characterized in that: described block rounded outer surface is provided with anti-slip plane.
7. according to claim 1,5 or 6 described disposable use sterile blood sampling pins, it is characterized in that: the cutting ferrule in the described block has two symmetrical cambered surfaces and two symmetrical planes, and two symmetric planes are provided with the opening dashpot, and two symmetrical cambered surface inboards are provided with circumferential draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200302624U CN201949013U (en) | 2011-01-28 | 2011-01-28 | Disposable sterile blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200302624U CN201949013U (en) | 2011-01-28 | 2011-01-28 | Disposable sterile blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201949013U true CN201949013U (en) | 2011-08-31 |
Family
ID=44493144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200302624U Expired - Fee Related CN201949013U (en) | 2011-01-28 | 2011-01-28 | Disposable sterile blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201949013U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064293A (en) * | 2016-07-20 | 2016-11-02 | 梁启明 | A kind of damper box feed mechanism |
| CN106491142A (en) * | 2016-12-15 | 2017-03-15 | 韩新巍 | A kind of retracting type blood-taking device |
| CN108324290A (en) * | 2018-03-01 | 2018-07-27 | 皖南医学院 | The safe Painless blood taking needle of disposable press-type |
| WO2019119382A1 (en) * | 2017-12-21 | 2019-06-27 | 符仲华 | Needle feeder and application thereof |
-
2011
- 2011-01-28 CN CN2011200302624U patent/CN201949013U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064293A (en) * | 2016-07-20 | 2016-11-02 | 梁启明 | A kind of damper box feed mechanism |
| CN106064293B (en) * | 2016-07-20 | 2024-02-13 | 梁启明 | Adjusting box feeding mechanism |
| CN106491142A (en) * | 2016-12-15 | 2017-03-15 | 韩新巍 | A kind of retracting type blood-taking device |
| CN106491142B (en) * | 2016-12-15 | 2023-06-16 | 韩新巍 | Retractable blood sampling device |
| WO2019119382A1 (en) * | 2017-12-21 | 2019-06-27 | 符仲华 | Needle feeder and application thereof |
| CN108324290A (en) * | 2018-03-01 | 2018-07-27 | 皖南医学院 | The safe Painless blood taking needle of disposable press-type |
| CN108324290B (en) * | 2018-03-01 | 2023-11-21 | 皖南医学院 | Disposable touch-pressing type safe painless blood taking needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20140128 |