CN203138505U - Safe blood-sampling apparatus - Google Patents
Safe blood-sampling apparatus Download PDFInfo
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- CN203138505U CN203138505U CN 201220588633 CN201220588633U CN203138505U CN 203138505 U CN203138505 U CN 203138505U CN 201220588633 CN201220588633 CN 201220588633 CN 201220588633 U CN201220588633 U CN 201220588633U CN 203138505 U CN203138505 U CN 203138505U
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- Prior art keywords
- needle
- blood taking
- syringe
- hole
- taking device
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Abstract
The utility model discloses a safe blood-sampling apparatus. The apparatus comprises a blood sampling needle and a needle cylinder, wherein the needle cylinder is provided with a sealed end and an open end, a through hole is formed on the sealed end, press button holes are formed adjacent to the sealed end on the side wall of the needle cylinder, a needle seat is disposed in the needle cylinder, a needle through hole is formed on the needle seat, the blood sampling needle partially penetrates the needle through hole and fixedly coordinates with the needle through hole, press buttons which can elastically deform in the radial direction are formed on the needle seat and are clamped with the press button holes at a locking state, a resetting acting force moving towards the open end is applied to the needle seat, and protrusions extending in the radial direction are formed adjacent to the two sides of the press button holes on the outer side wall of the needle cylinder. The utility model aims to solve the technical problem that the safe blood-sampling systems of the prior art are not safe, and thus provides a much safer blood-sampling apparatus.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, is specifically related to a kind of safety blood taking device.
Background technology
At medicine and hygiene fields, people utilize blood-taking device to gather the venous blood sample, and then the check analysis by various blood projects diagnoses the illness or the research of other subjects, makes blood-taking device become one of the most salable medical device product.Yet because syringe needle fracture or the improper human body event of stabbing that causes of operation of medical workers of blood-taking device happens occasionally, and the consequence that the event of stabbing produces can not be ignored; Annual because of the number of stabbing the various communicate illnesss infectd such as hepatitis B virus, hepatitis C virus and HIV (human immunodeficiency virus) (Human Immunodeficiency Virus) up to 1,000,000, not only bring unnecessary misery to people, also brought the great number medical expense that is difficult to bear simultaneously.
Chinese patent literature CN102599920A discloses the safe blood acquisition system of the vein with self-locking device, by: safety blood taking pin, needle holder, vacuum test tube are formed jointly; Said safety blood taking pin by: sheath, puncture needle, needle stand, blood resistance unit, spring are formed; Needle holder is made up of urceolus, button, handle, inserted sheet; Vacuum test tube is made up of test tube, interior plug, end cap; At two inserted sheets that the front end side wall of urceolus has the extreme direction before the outer tube inner wall of symmetry to tilt, its width is not less than 2.0mm; At the front end of vacuum blood collection pipe end-cap, an annular projection is arranged, its diameter is greater than the distance between two inserted sheet leading edges of outer cylinder front end sidewall; At the middle part of end cap, several arc convex are arranged; The lowest point width of per two projectioies is all greater than the inserted sheet width.Outer cylinder front end conehead endoporus communicates with outer tube inner chamber, and outer tube inner chamber hypomere has three abduction fins, and its maximum gauge is equal to or less than the urceolus internal diameter, and its spacing is greater than the width of inserted sheet; Have a fin to shorten, locking can be supported by the base of windowing of urceolus front side wall in this fin bottom surface, and spring is compressed in the conehead endoporus; The outside that urceolus is windowed has the button touch panel to cover.
The i.e. safe blood acquisition system of the vein with self-locking device in this patent documentation, after blood sampling finishes, the downward pressing keys touch panel of medical worker, make it to window along the outer cylinder front end arc and move inward downwards, move inward by the triggering button of bar rope transmission pressure with needle stand hypomere abduction, make it break away from urceolus taper socket sidewall window support and the restriction on base, spring is discharged, under acting force of the spring, drive needle stand, needle tubing, blood resistance unit together rapidly retraction enter in the space of urceolus, until the abduction fin of needle stand by the prominent ridge restriction of the annular of outer tube inner wall and stop in the urceolus.
But, the button touch panel that the described safe blood acquisition system of vein with self-locking device of above-mentioned patent documentation is positioned on the conical socket is to expose outside the conical tube barrel, make it carry, being subjected to accident in placement or the blood collection procedure easily touches or presses, thereby cause its safety blood taking pin when not using or in blood collection procedure to retract in the urceolus easily, and then make this device just scrap or in blood collection procedure, brought unexpected injury by blood sampling person without using, in addition, when the safety blood taking pin accident in the above-mentioned patent documentation retracts in the urceolus, medical personnel need be to the blood sampling of being had an acupuncture treatment again by blood sampling person of not taking a blood sample and finishing, need be born the evitable pain of the basis of bringing thus again by blood sampling person, also increase medical personnel's workload.
The utility model content
For this reason, technical problem to be solved in the utility model is that the button touch panel of safety blood taking device of the prior art is to expose outside the conical tube barrel, making it be subjected to accident easily easily in conveying, placement or blood collection procedure touches or presses, thereby cause its safety blood taking pin when not using or in blood collection procedure to retract in the urceolus easily, cause safe blood acquisition system of the prior art dangerous, and then a kind of safer safety blood taking device of operating is provided.
For solving the problems of the technologies described above, a kind of safety blood taking device of the present utility model comprises blood taking needle;
Syringe has blind end and opening, is formed with a through hole on the described blind end, is formed with key hole near on the described barrel sidewall of described blind end;
Needle stand is arranged in the described syringe, is formed with needle passing hole on the described needle stand, described blood taking needle partly pass described needle passing hole and with described needle passing hole secure fit; But also be formed with the pressing key of radial elastic distortion on the described needle stand; At lock-out state, described pressing key engages with described key hole, is applied with the reset response power that moves to described opening on the described needle stand;
Described syringe lateral wall has been formed separately axially extended projection near the both sides of described key hole.
Described button through hole is axially extended oblong aperture, and described projection is formed on the long limit of described oblong aperture.
Circumferential distance between the described projection of described key hole both sides is 18mm-25mm.
One end of the close described syringe blind end of described blood taking needle is arranged with and is suitable for being subjected to described pressing key to trigger the back-moving spring that the described needle stand of drive moves toward described syringe blind end.
The radial height of described projection is 2-5mm.
The effect quantity of described key hole is two, and is symmetrically distributed.
The described syringe described key hole place that is shaped caves inward.
Be provided with the stopping means that stops that described needle stand moves to described syringe opening near described syringe open end.
Described blood taking needle comprises needle tubing and is set in the blood resistance unit of the described needle tubing in the described syringe.
Described syringe opening is provided with closing cap, and the blood sampling end of described needle tubing is arranged with guarantor's needle guard.
Technique scheme of the present utility model has the following advantages compared to existing technology,
(1) in safety blood taking device described in the utility model, described syringe lateral wall has been formed separately axially extended projection near the both sides of described key hole, therefore it all is not easy to be subjected to unexpected touching or presses in conveying, placement or blood collection procedure, thereby operates safer.
(2) in safety blood taking device described in the utility model, described button through hole is axially extended oblong aperture, and described projection is formed on the long limit of described oblong aperture, and simple in structure being suitable for made.
(3) in safety blood taking device described in the utility model, the circumferential distance between the described projection of described key hole both sides is 18mm-25mm, and convenient finger stretches into and triggers described pressing key.
(4) in safety blood taking device described in the utility model, one end of the close described syringe blind end of described blood taking needle is arranged with and is suitable for being subjected to described pressing key to trigger the back-moving spring that the described needle stand of drive moves toward described syringe blind end, and described back-moving spring is to being applied with the reset response power that moves to described opening on the described needle stand.
(5) in safety blood taking device described in the utility model, the described syringe described key hole place that is shaped caves inward, and guarantees that further described pressing key can not bumped by mistake.
(6) in safety blood taking device described in the utility model, close described syringe open end is provided with and stops described needle stand to the stopping means that described syringe opening moves, and prevents that described needle stand from continuing to move and eject described syringe.
(7) in safety blood taking device described in the utility model, described syringe opening is provided with closing cap, namely can play spacing effect, remained blood is retained in the syringe, more health.
Description of drawings
Content of the present utility model is easier clearly to be understood in order to make, and according to specific embodiment of the utility model also by reference to the accompanying drawings, this utility model is described in further detail, wherein below
Fig. 1 is the structural representation that safety blood taking device described in the utility model has two pressing keys;
Fig. 2 is needle stand in the safety blood taking device described in the utility model and the sketch map of blood taking needle;
Fig. 3 is the sketch map of syringe in the safety blood taking device described in the utility model;
Fig. 4 is safety blood taking device withdraw of the needle view described in the utility model;
Fig. 5 is the structural representation that a pressing key is arranged in the safety blood taking device described in the utility model.
Reference numeral is expressed as among the figure: the 1-blood taking needle, and the 2-syringe, the 21-key hole, the 22-projection, the 23-through hole, the 3-needle stand, the 31-pressing key, the 4-back-moving spring, the 5-stopping means,
The specific embodiment
Fig. 1-Figure 4 shows that embodiment of safety blood taking device described in the utility model, it comprises blood taking needle 1, syringe 2 and needle stand 3, wherein, described blood taking needle 1 comprises needle tubing and is set in the blood resistance unit of the described needle tubing in the described syringe 2, the blood sampling end of described needle tubing is arranged with guarantor's needle guard, the health of end before not using of guaranteeing to take a blood sample; Described syringe 2 has blind end and opening, is formed with a through hole 23 on the described blind end, is formed with key hole 21 near on described syringe 2 sidewalls of described blind end; Described needle stand 3 is arranged in the described syringe 2, is formed with needle passing hole on the described needle stand 3, described blood taking needle 1 part pass described needle passing hole and with described needle passing hole secure fit; But also be formed with the pressing key 31 of radial elastic distortion on the described needle stand 3; At lock-out state, described pressing key 31 engages with described key hole 21, is applied with the reset response power that moves to described opening on the described needle stand 3; The power of reset response described in the present embodiment is arranged with near an end of described syringe 2 blind ends by described blood taking needle 1 and is suitable for being subjected to described pressing key 31 to trigger driving described needle stand 3 applying toward the back-moving spring 4 that described syringe 2 blind ends move; Described syringe 2 lateral walls have been formed separately axially extended projection 22 near the both sides of described key hole 21, and preferred described button through hole 23 is axially extended oblong aperture, and described projection 22 is formed on the long limit of described oblong aperture.The effect quantity that present embodiment arranges described key hole 21 is two and is symmetrically distributed that the circumferential distance between the described projection 22 of each described key hole 21 both sides is 18mm, the radial height 2mm of described projection 22.
After blood sampling finishes, press described pressing key 31, under the effect of back-moving spring, the opening that described needle stand band the past described syringe of described blood taking needle moves, thereby blood taking needle is retracted in the syringe.Because there is projection at key hole 21 edges, if finger does not stretch into and do not remove to press described pressing key in the projection, general external force is impossible trigger the pressing key of described blood-taking device.
Figure 5 shows that another embodiment of this utility model, circumferential distance between the described projection 22 of described key hole 21 both sides is 25mm, the radial height of described projection 22 is 5mm, the effect quantity of described key hole 21 is one, corresponding pressing key 31 also has only one to match with described key hole 21, and the described key hole of described syringe 2 shapings 21 places cave inward.Be provided with the stopping means 5 that stops that described needle stand 3 moves to described syringe 2 openings near described syringe 2 open end in the present embodiment, prevent that described needle stand 3 from continuing to move and eject described syringe 2, stopping means described in this practical example 5 is for being formed in described syringe 2 medial walls and radially outstanding prominent ring.
In addition, also to namely can play spacing effect to be provided with closing cap at described syringe 2 openings, remained blood is retained in the syringe 2, more health.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.
Claims (10)
1. a safety blood taking device comprises blood taking needle (1);
Syringe (2) has blind end and opening, is formed with a through hole (23) on the described blind end, is formed with key hole (21) near on described syringe (2) sidewall of described blind end;
Needle stand (3) is arranged in the described syringe (2), and described needle stand is formed with needle passing hole on (3), described blood taking needle (1) part pass described needle passing hole and with described needle passing hole secure fit; Described needle stand (3) but on also be formed with the pressing key (31) of radial elastic distortion; At lock-out state, described pressing key (31) engages with described key hole (21), is applied with the reset response power that moves to described opening on the described needle stand (3);
It is characterized in that: described syringe (2) lateral wall has been formed separately axially extended projection (22) near the both sides of described key hole (21).
2. according to the described safety blood taking device of claim 1, it is characterized in that described button through hole (23) is axially extended oblong aperture, described projection (22) is formed on the long limit of described oblong aperture.
3. according to the described safety blood taking device of claim 2, it is characterized in that the circumferential distance between the described projection (22) of described key hole (21) both sides is 18mm-25mm.
4. according to any described safety blood taking device of claim 1-3, it is characterized in that an end of close described syringe (2) blind end of described blood taking needle (1) is arranged with and is suitable for being subjected to described pressing key (31) to trigger the back-moving spring (4) that the described needle stand of drive (3) moves toward described syringe (2) blind end.
5. according to the described safety blood taking device of claim 4, it is characterized in that the radial height of described projection (22) is 2-5mm.
6. according to the described safety blood taking device of claim 4, it is characterized in that the effect quantity of described key hole (21) is two, and be symmetrically distributed.
7. according to claim 1-3,5,6 any described safety blood taking devices, it is characterized in that described syringe (2) the described key hole (21) that is shaped is located to cave inward.
8. according to claim 1-3,5,6 any described safety blood taking devices, it is characterized in that, be provided with the stopping means (5) that stops that described needle stand (3) moves to described syringe (2) opening near described syringe (2) open end.
9. described safety blood taking device according to Claim 8 is characterized in that, described blood taking needle (1) comprises needle tubing and is set in the blood resistance unit of the described needle tubing in the described syringe (2).
10. according to the described safety blood taking device of claim 9, it is characterized in that described syringe (2) opening is provided with closing cap, the blood sampling end of described needle tubing is arranged with guarantor's needle guard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588633 CN203138505U (en) | 2012-11-09 | 2012-11-09 | Safe blood-sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588633 CN203138505U (en) | 2012-11-09 | 2012-11-09 | Safe blood-sampling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203138505U true CN203138505U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220588633 Expired - Fee Related CN203138505U (en) | 2012-11-09 | 2012-11-09 | Safe blood-sampling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203138505U (en) |
Cited By (2)
| 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 |
| CN106474593A (en) * | 2015-08-27 | 2017-03-08 | 王祖扬 | A kind of needle automatic retracting formula safe intravenous infusion needle |
-
2012
- 2012-11-09 CN CN 201220588633 patent/CN203138505U/en not_active Expired - Fee Related
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 |
| CN103405237B (en) * | 2013-09-02 | 2015-10-07 | 蔡根顺 | A kind of hemostix, hemostix special needle and packaging blood taking needle |
| CN106474593A (en) * | 2015-08-27 | 2017-03-08 | 王祖扬 | A kind of needle automatic retracting formula safe intravenous infusion needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20151109 |
|
| EXPY | Termination of patent right or utility model |