CN203089136U - Safe blood collection device - Google Patents
Safe blood collection device Download PDFInfo
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- CN203089136U CN203089136U CN 201220618803 CN201220618803U CN203089136U CN 203089136 U CN203089136 U CN 203089136U CN 201220618803 CN201220618803 CN 201220618803 CN 201220618803 U CN201220618803 U CN 201220618803U CN 203089136 U CN203089136 U CN 203089136U
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- hole
- needle
- blood taking
- urceolus
- external part
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Abstract
The utility model discloses a safe blood collection device, which comprises a blood collection needle, a needle seat and an outer barrel, wherein the needle seat is provided with a needle hole; the blood collection needle is coaxially and fixedly matched with the needle hole, and extends from the two ends of the needle seat; the outer barrel is provided with an extension end and a tail end; the blood collection needle extends from the extension end; a partial pressure part for applying pressure to the tail end is arranged between the needle seat and the tail end; a radially extending clamping bump is formed on the needle seat; a first through hole is formed in the end face of the extension end, and is suitable for the clamping and the rotation of the clamping bump as well as the separation of the clamping bump towards the tail end; a rotating sleeve is sleeved at the extension end; and a second through hole similar to the first through hole is formed in the end face of the rotating sleeve. The problem that the blood collection needle is retracted in a way of pressing a key touch panel which easily cause unintentional injury and increase blood collection workload by accidental touch or pressing is solved, and the safe blood collection device can be operated more safely.
Description
Technical field
This utility model relates to a kind of blood-taking device, specifically relates 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 of the syringe needle fracture or the improper human body incident of stabbing that causes of operation of medical workers of blood-taking device happens occasionally, and the consequence that the incident 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 vein safety blood acquisition system 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; Front end side wall at urceolus has symmetric two inserted sheets that extreme direction tilts before outer tube inner wall, and 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.
I.e. vein safety blood acquisition system in this patent documentation with self-locking device, when blood sampling finishes, downward pressing keys touch panel, make it to window and move inward downwards along the outer cylinder front end arc, move inward by the triggering button of bar rope transmission pressure needle stand hypomere abduction, make it break away from urceolus taper socket sidewall the 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.
The described vein safety blood acquisition system of above-mentioned patent documentation with self-locking device, the button touch panel that is positioned on the conical socket exposes outside the conical tube barrel, make it carry, being subjected to accident in placement or the blood collection procedure easily touches or pushes, 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 once more by blood sampling person of not taking a blood sample and finishing, need be born the evitable pain of the basis of bringing thus once more by blood sampling person, also increased medical personnel's workload, and then a kind of safer safety blood taking device of operating is provided.
The utility model content
For this reason, technical problem to be solved in the utility model is the vein safety blood acquisition system with self-locking device of the prior art, adopt the mode of the pressing keys touch panel blood taking needle that bounces back, conveying easily, placement or blood collection procedure make blood taking needle retract in the urceolus because of touching unexpectedly or pushing, cause this vein safety blood acquisition system just scrap or in blood collection procedure, brought unexpected injury by blood sampling person without using, and may increase medical personnel's workload, and then provide a kind of safer safety blood taking device of operating.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of safety blood taking device comprises blood taking needle;
Needle stand has pin hole, and described blood taking needle is with the coaxial secure fit of described pin hole and stretch out described needle stand two ends;
Urceolus has external part and tail end, and described blood taking needle passes from described external part, is provided with the biasing force parts to the described tail end application of force between described needle stand and the described external part;
Form the fastening projection of radially extending on the described needle stand; Be formed with on the end face of described external part and be suitable for the fastening of described fastening projection and rotate described fastening projection being suitable for first through hole that described fastening projection is deviate to described tail end; Described external part is arranged with turnbarrel, forms second through hole similar with described first through hole on the described turnbarrel end face.
Described first through hole and described second through hole by circular port and on the axial side wall of described circular port the axially extended groove that described fastening projection deviates from that is suitable for of molding form.
Described first through hole and described second through hole are elliptical hole, and the major axis of described elliptical hole is suitable for described fastening projection to be deviate from, and the minor axis of described elliptical hole is suitable for the described fastening projection of fastening.
Form spacing hole on the described turnbarrel, described spacing hole is the strip hole that circumferentially extends, and described urceolus forms limited block near described external part, and described limited block is along described spacing hole relative motion.
The described relatively urceolus rotation of described turnbarrel 0-90 degree.
Described fastening projection is two and is symmetrical arranged.
Described urceolus has shoulder, and described needle stand is a column, and at described fastening projection and described external part fastening state, described column props up described shoulder.
Described column is provided with groove near an end of described first through hole, and described biasing force parts are spring, and described spring is positioned between described groove and the described external part.
Described urceolus also is provided with the stopper section near described tail end, and the internal diameter of described stopper section is less than described column maximum outside diameter, and described stopper section is suitable for described blood taking needle to the distance of described external part and withdraws fully in the described urceolus.
Described blood taking needle comprises needle tubing and is set in the blood resistance unit that described needle tubing is positioned at described urceolus part.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) in a kind of safety blood taking device described in the utility model, comprises blood taking needle; Needle stand has pin hole, and described blood taking needle is with the coaxial secure fit of described pin hole and stretch out described needle stand two ends; Urceolus has external part and tail end, and described blood taking needle passes from described external part, is provided with the biasing force parts to the described tail end application of force between described needle stand and the described external part; Form the fastening projection of radially extending on the described needle stand; Be formed with on the end face of described external part and be suitable for the fastening of described fastening projection and rotate described fastening projection and be suitable for first through hole that described fastening projection is deviate to described tail end; Described external part is arranged with turnbarrel, forms second through hole similar with described first through hole on the described turnbarrel end face; Be that described safety blood taking device makes described needle stand break away from described urceolus by rotating described turnbarrel, operate safer.
(2) in a kind of safety blood taking device described in the utility model, form spacing hole on the described turnbarrel, described spacing hole is the strip hole that circumferentially extends, and described urceolus forms limited block near described external part, and described limited block is along described spacing hole relative motion; The described relatively urceolus rotation of described turnbarrel 0-90 degree; Described turnbarrel can be fixed on the described external part in good condition, and the withdraw of the needle can not meet accident because the anglec of rotation is excessive again.
(3) in a kind of safety blood taking device described in the utility model, described fastening projection is two and is symmetrical arranged; Therefore described needle stand can be fixed by described urceolus stably.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, this utility model is described in further detail, wherein below
Fig. 1 is a kind of safety blood taking device cutaway view described in the utility model;
Fig. 2 is the cutaway view after a kind of safety blood taking device described in the utility model withdraw of the needle;
Fig. 3 is a kind of safety blood taking device sketch map described in the utility model;
Reference numeral is expressed as among the figure: the 1-blood taking needle; The 11-needle tubing; The 2-needle stand; The 21-pin hole; 22-biasing force parts; 23-fastening projection; The 24-column; The 25-groove; The 3-urceolus; The 31-external part; The 32-tail end; 33-first through hole; The 34-limited block; The 35-stopper section; The 36-shoulder; The 4-turnbarrel; 41-second through hole; The 42-spacing hole.
The specific embodiment
Be the described a kind of safety blood taking device of present embodiment as Figure 1-3, comprise blood taking needle 1, needle stand 2 and urceolus 3, wherein, described blood taking needle 1 comprises needle tubing 11 and is set in the blood resistance unit that described needle tubing 11 is positioned at described urceolus 3 parts; Described needle stand 2 is a column 24, forms pin hole 21 on described column 24 axis, and described blood taking needle 1 is with described pin hole 21 coaxial secure fit and stretch out described needle stand 2 two ends; Urceolus 3 has external part 31 and tail end 32, and described urceolus 3 also forms shoulder 36.Described blood taking needle 1 passes from described external part 31, be provided with biasing force parts 22 between described needle stand 2 and the described external part 31 to described tail end 32 application of forces, described biasing force parts 22 are spring, described column 24 is provided with groove 25 near an end of described first through hole 33, and described spring is positioned between described groove 25 and the described external part 31.Form the fastening projection 23 of radially extending on the described needle stand 2; Be formed with on the end face of described external part 31 and be suitable for described fastening projection 23 fastenings and rotate described fastening projection 23 being suitable for first through hole 33 that described fastening projection 23 is deviate to described tail end 32; Described external part 31 is arranged with turnbarrel 4, forms on described turnbarrel 4 end faces and the second similar through hole 41 of described first through hole 33.Be provided with in the present embodiment described first through hole 33 and described second through hole 41 by circular port and on the axial side wall of described circular port the axially extended groove that described fastening projection 23 deviates from that is suitable for of molding form.Form spacing hole 42 on the described turnbarrel 4, described spacing hole 42 is the strip hole that circumferentially extends, described urceolus 3 forms limited block 34 near described external part 31, and described limited block 34 makes the described relatively urceolus 3 of described turnbarrel 4 rotate the 0-90 degree along described spacing hole 42 relative motioies; Described fastening projection 23 is two and is symmetrical arranged; Described column 24 and described urceolus 3 inwalls are suitable; Described urceolus 3 also is provided with stopper section 35 near described tail end 32, the internal diameter of described stopper section 35 is less than described column 24 external diameters, described stopper section 35 is suitable for described blood taking needle 1 to the distance of described external part 31 withdraws in the described urceolus 3 fully, thereby prevents that described needle stand 2 from deviating to described urceolus 3.
The use of the described a kind of safety blood taking device of present embodiment is as follows:
Before the use, described fastening projection 23 and described second through hole 41 match, described first through hole 33 and described second through hole, 41 mutual dislocation, be that described fastening projection 23 matches with described second through hole 41, described fastening projection 23 is by described first through hole 33 fastenings on the described external part 31, described column 24 props up described shoulder 36, described biasing force parts 22 are compressed, thereby make described needle stand 2 be fixed, as shown in Figure 1,22 pairs of described needle stands 2 of described biasing force parts are applied with the biasing force towards described tail end 32.
During use, the tail end 32 of storage blood vessel from described urceolus 3 stretched in the described urceolus 3, and to described blood taking needle 1 application of force, described blood taking needle 1 is broken through the rubber closure that described blood resistance unit inserts described storage blood vessel, under the effect of negative pressure, blood flows into described storage blood vessel, gathers blood.
After blood collection finishes, transfer to described blood taking needle 1 in quilt blood sampling person body, the blood resistance unit resilient-elasticity recovery wrap described blood taking needle 1, thereby the blood in the blood taking needle 1 can not flow out to the origin-location; At this moment, described turnbarrel 4 only need rotate in a circumferential direction, make described second through hole 41 and described first through hole 33 coincide, described fastening projection 23 breaks away under the partial pressure of described biasing force parts 22 and the cooperation of described second through hole 41, pass described first through hole 33 and be withdrawn into described urceolus 3, and move to described tail end 32 together with described needle stand 2; When described needle stand 2 moves to the position of described stopper section 35, be greater than the internal diameter of described stopper section 35 because of the maximum outside diameter of described column 24, described needle stand 2 rests in the described urceolus 3, described stopper section 35 is suitable for described blood taking needle 1 to the distance of described external part 31 and withdraws fully in the described urceolus 3, be that described blood taking needle 1 is completely contained in the described urceolus 3, thereby finish the whole process of blood sampling.
As disposable embodiment, first through hole 33 is an elliptical hole described in the present embodiment, and the major axis of described elliptical hole is suitable for described fastening projection 23 to be deviate from, and the minor axis of described elliptical hole is suitable for the described fastening projection 23 of fastening.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification 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 exhaustive to all embodiments.And conspicuous 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);
Needle stand (2) has pin hole (21), and described blood taking needle (1) is with the coaxial secure fit of described pin hole (21) and stretch out described needle stand (2) two ends;
Urceolus (3) has external part (31) and tail end (32), and described blood taking needle (1) passes from described external part (31), is provided with the biasing force parts (22) to described tail end (32) application of force between described needle stand (2) and the described external part (31);
It is characterized in that: form the fastening projection (23) of radially extending on the described needle stand (2); Be formed with on the end face of described external part (31) and be suitable for described fastening projection (23) fastening and rotate described fastening projection (23) being suitable for first through hole (33) that described fastening projection (23) is deviate to described tail end (32); Described external part (31) is arranged with turnbarrel (4), forms second through hole (41) similar with described first through hole (33) on described turnbarrel (4) end face.
2. safety blood taking device according to claim 1 is characterized in that: described first through hole (33) and described second through hole (41) by circular port and on the axial side wall of described circular port the axially extended groove that described fastening projection (23) deviates from that is suitable for of molding form.
3. safety blood taking device according to claim 1, it is characterized in that: described first through hole (33) and described second through hole (41) are elliptical hole, the major axis of described elliptical hole is suitable for described fastening projection (23) to be deviate from, and the minor axis of described elliptical hole is suitable for the described fastening projection of fastening (23).
4. according to the arbitrary described safety blood taking device of claim 1-3, it is characterized in that: form spacing hole (42) on the described turnbarrel (4), described spacing hole (42) is the strip hole that circumferentially extends, described urceolus (3) forms limited block (34) near described external part (31), and described limited block (34) is along described spacing hole (42) relative motion.
5. safety blood taking device according to claim 4 is characterized in that: the described relatively urceolus of described turnbarrel (4) (3) rotation 0-90 degree.
6. according to claim 1-3,5 arbitrary described safety blood taking devices, it is characterized in that: described fastening projection (23) is two and is symmetrical arranged.
7. safety blood taking device according to claim 6, it is characterized in that: described urceolus (3) has shoulder (36), described needle stand (2) is a column (24), at described fastening projection (23) and described external part (31) fastening state, described column (24) props up described shoulder (36).
8. safety blood taking device according to claim 7, it is characterized in that: described column (24) is provided with groove (25) near an end of described first through hole (33), described biasing force parts (22) are spring, and described spring is positioned between described groove (25) and the described external part (31).
9. according to claim 7,8 arbitrary described safety blood taking devices, it is characterized in that: described urceolus (3) also is provided with stopper section (35) near described tail end (32), the internal diameter of described stopper section (35) is less than described column (24) maximum outside diameter, and described stopper section (35) are suitable for described blood taking needle (1) to the distance of described external part (31) and withdraw fully in the described urceolus (3).
10. according to claim 1-3,5,7,8 arbitrary described safety blood taking devices, it is characterized in that: described blood taking needle (1) comprises needle tubing (11) and is set in the blood resistance unit that described needle tubing (11) is positioned at described urceolus (3) part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618803 CN203089136U (en) | 2012-11-21 | 2012-11-21 | Safe blood collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618803 CN203089136U (en) | 2012-11-21 | 2012-11-21 | Safe blood collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203089136U true CN203089136U (en) | 2013-07-31 |
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ID=48840590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220618803 Expired - Fee Related CN203089136U (en) | 2012-11-21 | 2012-11-21 | Safe blood collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203089136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498171A (en) * | 2019-01-21 | 2019-03-22 | 刘贞宽 | Blood taking needle recover and its component |
-
2012
- 2012-11-21 CN CN 201220618803 patent/CN203089136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498171A (en) * | 2019-01-21 | 2019-03-22 | 刘贞宽 | Blood taking needle recover and its component |
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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: 20130731 Termination date: 20151121 |