CN202920209U - Safe hemostix - Google Patents
Safe hemostix Download PDFInfo
- Publication number
- CN202920209U CN202920209U CN 201220561023 CN201220561023U CN202920209U CN 202920209 U CN202920209 U CN 202920209U CN 201220561023 CN201220561023 CN 201220561023 CN 201220561023 U CN201220561023 U CN 201220561023U CN 202920209 U CN202920209 U CN 202920209U
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- Prior art keywords
- needle stand
- needle
- syringe
- locating part
- open slot
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Abstract
The utility model relates to a safe hemostix which comprises a needle cylinder, a needle tube and a needle seat, wherein the needle tube and the needle seat are arranged inside the needle cylinder. The safe hemostix further comprises a limit part which penetrates through the cylinder wall of the needle cylinder and is arranged in a radial mode, the limit part conducts lower limit on the needle seat, second opening grooves are formed symmetrically in the cylinder wall of the needle cylinder, the limit part penetrates through the second opening grooves and is arranged, and the size of the second opening grooves is matched with that of the limit part. The length of the limit part is larger than the outer diameter of the needle cylinder, protrusions are formed at both ends of the limit part, and the size of the protrusion is larger than that of the second opening groove, and is suitable for limiting at both ends of the limit part. The limit part is used to conduct lower limit on the needle seat to be capable of ensuring that the needle seat does not fall off from the interior of an outer cylinder when the needle seat is contracted to the needle tube.
Description
Technical field
This utility model relates to a kind of safe hemostix, belongs to technical field of medical instruments.
Background technology
As everyone knows, at medical field, the collection of blood not only can help people to understand Human Physiology and pathologic condition, advancing of disease is judged, and the relief of patient under emergency situation is also had very important effect.In numerous blood sampling modes, venous blood collection is that people use one of more acquisition mode to blood preparation.When venous blood collection, the clinical medical and nursing personnel use pen type blood collection mostly, the needle tubing that connects before and after pen type blood collection comprises, there is sharp pin sword at its two ends, front end is called venipuncture needle, is used for directly thrusting human body or animal venous blood sampling, and the rear end is called blood taking needle, be used for being communicated with the blood taking tube of collecting blood, under suction function with in blood suction blood taking tube.The blood sampling complete, extract venipuncture needle and local hemostasis after; the nurse also needs blood taking tube or blood taking needle are taken off from the rear end of hemostix usually; and in the process of taking off blood taking tube or blood taking needle; due to outside venipuncture needle also is exposed to; therefore careless slightly; nurse's finger will be stabbed by the sharp pin sword of venipuncture needle, causes infection or the propagation of blood borne disease.In addition, in order to prevent cross infection, the hemostix that uses at present mostly is disposable blood taking device, take a blood sample complete, will be discarded into refuse bin to hemostix after taking out blood taking tube, can stab the garbage disposal personnel equally and be exposed to venipuncture needle outward.
The needle stick injury of hemostix after complete for fear of blood sampling to the person, Chinese patent literature CN102599920A discloses a kind of safe vein blood sampling system with self-locking device, be comprised of safe blood-taking needle, needle holder and vacuum test tube community, described safe blood-taking needle is comprised of sheath, puncture needle, needle stand, hemostasia sleeve, spring; Needle holder is comprised of urceolus, button, handle, inserted sheet, is provided with symmetrical two inserted sheets that extreme direction tilts before the outer tube inner wall in the front end side wall of urceolus; The front end of urceolus is provided with conehead, on the tapered sidewalls surface of urceolus, one fan-shaped windowing is arranged, and the hypomere inwall of urceolus has annular ridge; 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-shaped protrusions are arranged, the lowest point width of every two projections is all greater than the inserted sheet width.Needle stand central porose, interior bonding needle tubing, the needle stand epimere has the spring supporting platform, its periphery pocketed springs, the outer rim symmetry of spring supporting platform has three arcuated fin pieces of abduction downwards, one of them fin consists of the triggering button, after blood sampling is completed, only need depress button, needle stand is discharged, spring reset, drive needle tubing and be set back in outer tube inner chamber, this safe vein blood sampling system is by the retraction of needle stand, and then the automatic traction puncture needle bounces back to outer tube inner chamber, thereby realize the protection to medical personnel, avoid needle stick injury.Because driving described needle stand by spring, shrinks in described urceolus by this blood taking needle, described needle stand only has an end to be arranged with spring, due to the diameter of the abduction fin of the needle stand lower end internal diameter less than described urceolus, so on the hypomere inwall of described urceolus, stopping means must be set, in the time of like this in needle stand drives the whole retraction urceolus of syringe needle, just be unlikely to come off in described urceolus.In this safe vein blood sampling system, described stopping means is the circular ridge that takes shape on the hypomere inwall of described urceolus, and the internal diameter of the annulus of circular ridge formation is less than the diameter of needle stand hypomere abduction fin, when needle stand drives in the whole retraction urceolus of syringe needle like this, the abduction fin of needle stand is stopped by described circular ridge, so that described needle stand is carried out lower limit, purpose is in order to guarantee that needle stand can not come off in described urceolus.But, above-mentioned safe vein blood sampling system in use, needle stand drives the needle tubing contraction and normally completes instantaneous, the diameter of the annulus that forms due to annular ridge and the internal diameter of urceolus differ less, in process in needle stand is retracted described syringe rapidly, the edge of abduction fin easily slips over described annular ridge and described needle stand is come off in described urceolus.
The utility model content
Technical problem to be solved in the utility model is that the needle stand of the safe hemostix that uses in prior art easily slips over stopping means and the technical problem that comes off from outer tube inner wall, and this utility model provides a kind of can guarantee the not safe hemostix of landing in the described urceolus of described needle stand.
For solving the problems of the technologies described above, this utility model is achieved through the following technical solutions:
A kind of safe hemostix comprises syringe, and the needle tubing and the needle stand that are arranged on described syringe inside; Offer the first open slot on described syringe; Described needle tubing comprises cutting tip and blood sampling end, and the length of described needle tubing is less than the length of described syringe; The axle center that described needle tubing runs through described needle stand is fixedly installed, and described cutting tip stretches out from the top of described needle stand; Be arranged with the biasing force parts outside the cutting tip of described needle tubing, an end and the described needle stand of described biasing force parts are inconsistent, and the other end and described syringe upper end are inconsistent; Described needle stand has a press section, and described press section is suitable for snapping in when the cutting tip of described needle tubing stretches out described syringe in described the first open slot; Also comprise and run through the locating part that described syringe barrel radially arranges, described locating part carries out lower limit to described needle stand.
Described needle stand comprises the needle stand main body, be connected in the stiff end of described needle stand main body top and the elongated end that is connected in described needle stand main body below;
One end extension set of described biasing force parts is located on the stiff end of described needle stand, and further inconsistent with described needle stand main body; Described press section is connected on described elongated end.
Described needle stand main body is annular flap.
Described stiff end and the coaxial setting of described elongated end, described press section is connected on described elongated end by the arc connecting portion.
Radial symmetric offers the second open slot on described syringe barrel, and described locating part runs through described the second open slot setting.
The size of described the second open slot and described locating part size are suitable.
The length of described locating part forms projection greater than the external diameter of described syringe at the two ends of described locating part, and the size of described projection is suitable for carrying out spacing to the two ends of described locating part greater than the size of described the second open slot.
Described locating part is the bar shaped key.
Technique scheme of the present utility model advantage compared to existing technology is, safe hemostix described in the utility model runs through described syringe barrel locating part radially to described needle stand is carried out lower limit by setting, can guarantee the not landing in the described urceolus in shrinking back the process of described needle tubing of described needle stand.
Description of drawings
For content of the present utility model is more likely to be clearly understood, below in conjunction with accompanying drawing, this utility model is described in further detail, Fig. 1 is the overall structure decomposing schematic representation of this utility model embodiment 1 described safe hemostix.
In figure, Reference numeral is expressed as: 1-the first open slot, 2-cutting tip, 3-blood sampling end, 4-spring, 5-stiff end, 6-elongated end, 7-annular flap, 8-press section, 9-bar shaped key, 10-the second open slot, 11-are protruding.
The specific embodiment
A kind of safe hemostix described in the utility model as shown in Figure 1, comprises syringe, is arranged on needle tubing and the needle stand of described syringe inside and runs through the locating part that described syringe barrel radially arranges.
Offer the first open slot 1 on described syringe; Described needle tubing comprises cutting tip 2 and blood sampling end 3, and the length of described needle tubing is less than the length of described syringe; The axle center that described needle tubing runs through described needle stand is fixedly installed, and described cutting tip 2 stretches out from the top of described needle stand; Be arranged with the biasing force parts outside the cutting tip 2 of described needle tubing, described biasing force parts are spring 4, and an end and the described needle stand of described spring 4 are inconsistent, and the other end and described syringe upper end are inconsistent.
Described needle stand comprises the needle stand main body, be connected in the stiff end 5 of described needle stand main body top and the elongated end 6 that is connected in described needle stand main body below.Described needle stand main body is annular flap 7, and described stiff end 5 is fixed with the coaxial setting of described elongated end 6, the cutting tip 2 of 5 pairs of described needle tubings of described stiff end; One end extension set of described spring 4 is located on the stiff end 5 of described needle stand, and further inconsistent with described annular flap 7; Be connected with a press section 8 on described elongated end 6, described press section 8 is connected on described elongated end 6 by the arc connecting portion.
Described locating part is bar shaped key 9, radial symmetric offers the second open slot 10 on described syringe barrel, described bar shaped key 9 runs through described the second open slot 10 and arranges, the size of described the second open slot 10 and described bar shaped key 9 sizes are suitable, the length of described bar shaped key 9 is greater than the external diameter of described syringe, form projection 11 at the two ends of described bar shaped key 9, described protruding 11 size is suitable for carrying out spacing to the two ends of described bar shaped key 9 greater than the size of described the second open slot 10.
before taking a blood sample, when the cutting tip 2 of described needle tubing stretched out described syringe, described press section 8 was suitable for snapping in described the first open slot 1, the 2 pairs of human bodies of cutting tip that use needle tubing take a blood sample complete after, press...with one's finger and press described press section 8, due to described press section 8 on the elongated end 6 of described needle stand and be attached thereto setting, the axle center that described needle tubing runs through described needle stand is fixedly installed, therefore when using the described press section 8 of finger presses, described press section 8 drives described needle stand and described needle tubing integral body is retracted in described syringe, in the process that described needle stand and needle tubing are retracted in described syringe, due to stopping of the bar shaped key 9 that is subject to running through the second open slot 10 settings that on described syringe barrel, radial symmetric is offered, can guarantee the not landing in the described syringe of described needle stand.
As preferred embodiment, in the present embodiment guarantee described needle stand not in the described syringe locating part of landing be bar shaped key 9, as selectable embodiment, described locating part can also be square key or cylinder key etc., and in the middle of this, needed structural adjustment is that the those skilled in the art is namely achievable according to the knowledge and the conventional means that possess.
Obviously, above-described embodiment is only 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 protection domain of the present utility model.
Claims (8)
1. a safe hemostix, comprise syringe, and the needle tubing and the needle stand that are arranged on described syringe inside;
Offer the first open slot (1) on described syringe;
Described needle tubing comprises cutting tip (2) and blood sampling end (3), and the length of described needle tubing is less than the length of described syringe; The axle center that described needle tubing runs through described needle stand is fixedly installed, and described cutting tip (2) stretches out from the top of described needle stand; Be arranged with the biasing force parts outside the cutting tip (2) of described needle tubing, an end and the described needle stand of described biasing force parts are inconsistent, and the other end and described syringe upper end are inconsistent;
Described needle stand has a press section (8), and the cutting tip (2) that described press section (8) are suitable at described needle tubing snaps in when stretching out described syringe in described the first open slot (1);
It is characterized in that,
Also comprise and run through the locating part that described syringe barrel radially arranges, described locating part carries out lower limit to described needle stand.
2. safe hemostix according to claim 1, is characterized in that, described needle stand comprises the needle stand main body, be connected in the stiff end (5) of described needle stand main body top and the elongated end (6) that is connected in described needle stand main body below;
Described stiff end (5) is fixed the cutting tip (2) of described needle tubing; One end extension set of described biasing force parts is located on the stiff end (5) of described needle stand, and further inconsistent with described needle stand main body;
Described press section (8) is connected on described elongated end (6).
3. safe hemostix according to claim 2, is characterized in that, described needle stand main body is annular flap (7).
4. safe hemostix according to claim 2, is characterized in that, described stiff end (5) and the coaxial setting of described elongated end (6), and described press section (8) are connected on described elongated end (6) by the arc connecting portion.
5. according to claim 1 and 2 or 3 or 4 described safe hemostixes, is characterized in that, radial symmetric offers the second open slot (10) on described syringe barrel, and described locating part runs through described the second open slot (10) setting.
6. safe hemostix according to claim 5, is characterized in that, the size of described the second open slot (10) and described locating part size are suitable.
7. safe hemostix according to claim 5, it is characterized in that, the length of described locating part is greater than the external diameter of described syringe, form projection (11) at the two ends of described locating part, the size of described projection (11) is suitable for carrying out spacing to the two ends of described locating part greater than the size of described the second open slot (10).
8. safe hemostix according to claim 7, is characterized in that, described locating part is bar shaped key (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561023 CN202920209U (en) | 2012-10-29 | 2012-10-29 | Safe hemostix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561023 CN202920209U (en) | 2012-10-29 | 2012-10-29 | Safe hemostix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202920209U true CN202920209U (en) | 2013-05-08 |
Family
ID=48210203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220561023 Expired - Fee Related CN202920209U (en) | 2012-10-29 | 2012-10-29 | Safe hemostix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202920209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665846A (en) * | 2015-03-11 | 2015-06-03 | 张亚平 | Novel safe venipuncture needle |
-
2012
- 2012-10-29 CN CN 201220561023 patent/CN202920209U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665846A (en) * | 2015-03-11 | 2015-06-03 | 张亚平 | Novel safe venipuncture 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: 20130508 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |