CN203815467U - Safe arterial blood gas needle - Google Patents
Safe arterial blood gas needle Download PDFInfo
- Publication number
- CN203815467U CN203815467U CN201420219896.8U CN201420219896U CN203815467U CN 203815467 U CN203815467 U CN 203815467U CN 201420219896 U CN201420219896 U CN 201420219896U CN 203815467 U CN203815467 U CN 203815467U
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- CN
- China
- Prior art keywords
- syringe
- sleeve
- arterial blood
- hole
- needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a safe arterial blood gas needle which comprises a needle cylinder, a needle seat integrated with the needle cylinder, a piston arranged in the needle cylinder, a needle head, a sleeve, a control rod, a brake block, a button, a limit block, an ear plate, a spring, a valve ball and a knob. The control rod is fixed at the upper end of the needle cylinder and extends out of the sleeve, the brake block is fixed on the annular wall of the control rod, the button is arranged outside the sleeve and used for controlling the brake block, the limit block is fixed on the inner wall of the lower end of the sleeve, the ear plate is fixed on the outer wall of the lower end of the needle cylinder, and the spring is arranged on the needle cylinder in a sleeved mode and movably connected with the limit block and the ear plate in a clamping mode. The safe arterial blood gas needle is suitable for the general population and also suitable for children and obese patients who can not be effectively treated through needles in the existing market, anticoagulants are placed in the valve ball and can exhaust air in the valve ball, arterial blood can be in contact with the anticoagulants at the earliest, and analysis accuracy of arterial blood gas is improved.
Description
Technical field
This utility model relates to a kind of blood gas needle, particularly relates to a kind of safe arterial blood air tube.
Background technology
Arterial blood gas analysis is the conventional valid function technology of clinical diagnosis and rescue patient, and its key is gathering, transports completely isolated air in the process with specimen examination and enter blood specimen, thereby avoids affecting blood specimen result impact diagnosis and delay treatment.And the collection of specimens of arterial blood gas analysis technology, transport and check and must rely on arterial blood air tube to complete.
Need clinically the patient who carries out arterial blood gas analysis check to comprise adult and child, also comprise and becoming thin and fat crowd.Arterial blood gas analysis can be effective, safe the blood specimen that depends on extract in time, accurately and censorship fast.The arterial blood air tube of used unified syringe needle length can not be applicable to obese patient and children's well, can incur loss through delay blood sample collection required time, thereby delays treatment process, in clinical its drawback that highlighted, affects part population extraction blood specimen promptly and accurately.
In the safe censorship link of blood specimen, although nowadays the arterial blood air tube of market is modified in order to carry the syringe of anticoagulant liquid from the most original ordinary syringe, but the method for its isolated air is not well improved, and remains medical personnel and blood gas needle syringe needle is thrust to the external segregation apparatuss such as rubber closure or water sealing liquid after blood sample collection to completely cut off air.So not only can not guarantee isolated effect, also can increase the pricking wound risk of medical personnel in blood sample collection, the isolated air of blood specimen, blood specimen transport, check.
Utility model content
The technical problem that this utility model mainly solves is to provide a kind of safe arterial blood air tube, be not only applicable to general population, be more suitable for child and obese patient, and anticoagulant is arranged in valve ball, can get rid of the air in valve ball, also make arterial blood contact with anticoagulant the earliest, improved the accuracy of arterial blood gas analysis.
For solving the problems of the technologies described above, the technical scheme that this utility model adopts is: provide a kind of safe arterial blood air tube, the needle stand and the piston that is positioned at syringe, sleeve, control stick, brake block, button, limited block, otic placode, spring, valve ball and the knob that comprise syringe, syringe needle, be made into integration with syringe.
Described syringe needle and described needle stand are fixed, described syringe is arranged on the inner chamber of sleeve, described control stick is fixed on the upper end of syringe and stretches out outside sleeve, described piston is arranged in the inside of syringe and control stick and stretches out outside control stick, the lower end of described sleeve offers an outlet, and described outlet is corresponding with described syringe needle.Described brake block is fixed on the ring wall of described control stick, described button is arranged on outside sleeve and in order to control described brake block, described limited block is fixed on the inwall of described sleeve lower end, described otic placode is fixed on the outer wall of described syringe lower end, and described spring housing is located on syringe and movable and limited block and otic placode clamping.
The inner chamber of described needle stand is set to the valve pocket matching with valve ball, described valve ball is movably arranged in described valve pocket, is provided with a through hole on described valve ball, in described through hole, is provided with anticoagulant, one end of described knob is fixed on described valve ball, and its other end stretches out outside sleeve.
Further, the length direction along sleeve on the lower end outer wall of described sleeve is provided with an opening, and described knob can slide up and down along described opening.
Further, described control stick inside is provided with a through hole, and described piston runs through described through hole.
Further, be provided with along its length three apertures and be respectively from top to bottom the first hole, the second hole and the 3rd hole on described sleeve, described brake block can be stuck in described arbitrary aperture, and described button is corresponding with described aperture to press described brake block.
Further, described limited block is positioned at described otic placode below, and it is inconsistent with described limited block and otic placode respectively that described spring housing is located at syringe two ends outer and described spring.
Further, described sleeve and syringe are all transparent.
Further, on described syringe, be provided with scale.
This utility model adopts two-stage type to go out needle construction, and the length that can control pin adapts to different patients, such as the crowd such as adiposis patient and child, and after blood sampling, pin can bounce back in sleeve, avoids the unexpected pricking wound causing; Be provided with in addition valve ball device, can the very first time after blood sampling isolated blood contacts with air, also anticoagulant is arranged in valve ball, can get rid of the air in valve ball, also make arterial blood contact with anticoagulant the earliest, improved the accuracy of arterial blood gas analysis.
Accompanying drawing explanation
Fig. 1 is the structural representation of the safe arterial blood air tube of this utility model.
Fig. 2 is the structural representation of another state of the safe arterial blood air tube of this utility model.
Fig. 3 is the partial schematic diagram of this utility model sleeve.
Fig. 4 is the partial schematic diagram of brake component.
Fig. 5 is the partial schematic diagram of ball valve in closed condition.
Fig. 6 is the partial schematic diagram of ball valve in opening.
The specific embodiment
Below in conjunction with drawings and embodiments, this utility model is elaborated.
Please refer to shown in Fig. 1, the better embodiment of the safe arterial blood air tube of this utility model comprises: syringe 1, syringe needle 2, the needle stand 3 and the piston 4 that is positioned at syringe 1, sleeve 5, control stick 6, brake block 7, button 8, limited block 9, otic placode 10, spring 11, valve ball 12 and the knob 13 that are made into integration with syringe 1.
Described syringe needle 2 is fixing with described needle stand 3, and described syringe 1 is arranged on the inner chamber of sleeve 5, and described control stick 6 is fixed on the upper end of syringe 1 and stretches out outside sleeve 5.Described piston 4 is arranged in the inside of syringe 1 and control stick 6 and stretches out outside control stick 6.Described control stick 6 inside are provided with a through hole (scheming not shown), and described piston 4 runs through described through hole.Specifically, described piston 4, syringe 1 and sleeve 5 form three layers structure from the inside to the outside, and described syringe 1 can be up and down with respect to sleeve 5, and described piston 4 can be up and down with respect to syringe 1.The lower end of described sleeve 5 offers an outlet 51, and described outlet 51 is corresponding with described syringe needle 2, so that described syringe needle can stretch out from described outlet 51.
Please refer to shown in Fig. 1 and Fig. 2, described brake block 7 is fixed on the ring wall of described control stick 6, and described button 8 is arranged on outside sleeve 5 and in order to control described brake block 7.Specifically, on described sleeve 5, be provided with along its length three apertures 52 and be respectively from top to bottom the first hole 521, the second hole 522 and the 3rd hole 523, described brake block 7 can be stuck in described arbitrary aperture 52, and described button 8 is corresponding with described aperture 52 to press described brake block 7.It should be noted that, when described brake block 7 is positioned at the first hole 521, the length that described control stick 6 stretches out sleeve 5 parts is greater than or equal to the distance between the 3rd hole 523 and the first hole 521, when brake block 7 is stuck in the 3rd hole 523, described control stick 6 still exposes the outer or end face of described control stick 6 of sleeve 5 and the end face of sleeve 5 is positioned at a plane.
Shown in Fig. 4, the similar right-angled trapezium of cross section of described brake block 7, the long base of described right-angled trapezium is fixed on the outer wall of described control stick 6, described short base is in order to contact with described button 8, it is inconsistent that described right-angled trapezium is positioned at waist and the aperture 52 at place, right angle, and described brake block 7 is stuck in aperture 52.The surface of the brake block 7 at the waist place not being connected with right angle in described right-angled trapezium is smooth, main purpose is to press control stick 6 to make brake block 7 slide into the second hole 522 from the first hole 521, or when the second hole 522 slides into the 3rd hole 523, friction is less, more laborsaving.
Described limited block 9 is fixed on the inwall of described sleeve 5 lower ends, and described otic placode 10 is fixed on the outer wall of described syringe 1 lower end, and described spring 11 is sheathed on syringe 1 and movable and limited block 9 and otic placode 10 clampings.Specifically, described limited block 9 is positioned at described otic placode 10 belows, and it is inconsistent with described limited block 9 and otic placode 10 respectively that described spring 11 is sheathed on syringe 1 two ends outer and described spring 11.
When described brake block 7 is stuck in the first hole 521 when interior, described spring 11 is in relaxation state, and described syringe needle 2 is all positioned at sleeve 5.Press described control stick 6, described brake block 7 is stuck in the second hole 522, described syringe 1 moves down with respect to sleeve 5, and described limited block 9 is close with described otic placode 10, to such an extent as to 11 compressions of described spring, described syringe needle 2 stretches out outside sleeve 5.The length that described syringe needle 2 stretches out sleeve 5 equates with the distance between 521 to second holes 522, described the first hole.As making syringe needle 2, need bounce back in sleeve 5, press the button 8 at 522 places, the second hole, brake block 7 is extruded to the second hole 522, then the effect at spring 11 is stuck in the first hole 521 next time, described syringe 1 and control stick 6 are under the effect of spring 11 elastic force, with respect to sleeve 5, move upward, described syringe needle 2 is also retracted in sleeve 5 thereupon.As needs are used longer syringe needle 2, can when being stuck in the second hole 522, brake block 7 again press control stick 6, and make brake block 7 be stuck in the 3rd hole 523, can use.As making syringe needle 2, need bounce back in sleeve 5, by aforesaid operations.
Shown in Fig. 5 and Fig. 6, the inner chamber of described needle stand 3 is set to the valve pocket matching with valve ball 12, described valve ball 12 is movably arranged in described valve pocket, is provided with a through hole 121 on described valve ball 12, is provided with anticoagulant (scheming not shown) in described through hole 121.Described anticoagulant can be liquid or solid-state, and described anticoagulant sticks in described through hole 121, and guarantees that described through hole 121 is not blocked completely.One end of described knob 13 is fixed on described valve ball 12, and its other end stretches out outside sleeve 5.Specifically, this utility model is in packaging bag time, while not sealing off, described brake block 7 is stuck in the first hole 521, described syringe needle 2 is positioned at sleeve 5 completely, and the bottom of described piston 4 in described syringe 1, does not have air in described syringe 1, through hole 121 on described valve ball 12 does not communicate with the pin hole on syringe needle 2, and valve ball 12 is in closed condition.
In the time of need to using, first press control stick 6 syringe needle 2 is pushed to the outer length to needing of sleeve 5, then rotary knob 13, and the through hole 121 on valve ball 12 is communicated with the pin hole on syringe needle 2, preferably aim at completely, quicker during down to blood drawing.Then syringe needle 2 is entered when subcutaneous, pull piston 4 to be placed in the scale 101 of pre-blood drawing amount, then continue inserting needle, when syringe needle 2 enters arteries, blood enter hemostix automatically by tremulous pulse self pressure, reaches behind precalculated position, can rotary knob 13 be closed by valve ball 12, extract syringe needle 2, pressing button 8 bounces back in sleeve 5 syringe needle 2, avoids the generation of pricking wound again.Then be about to the rubbing of the specimen centre of the palm and mix at least 5s, then put upside down and mix, with anticoagulant, again check the label posting, censorship is immediately oppressed point of puncture with hemostasis with aseptic dry cotton ball simultaneously, time is greater than 5 minutes, and person wants proper extension compressing time disturbances of blood coagulation, prevents that hematoma from forming.
After censorship, rubbing again before upper machine, put upside down needle tubing blood is fully mixed, then pressing control stick 6 is pushed to syringe needle 2 outside sleeve 5, described brake block 7 is stuck in the second hole 522, then rotary knob 13, and the through hole 121 on valve ball 12 is communicated with the pin hole on syringe needle 2, push piston 4, get rid of the number on syringe needle 2 tops and bleed, finally the input adapter on analyser is connected with syringe needle 2, analyze.
Please refer to shown in Fig. 3, the length direction along sleeve 5 on the lower end outer wall of described sleeve 5 is provided with an opening 53, and described knob 13 can slide up and down along described opening 53.
Described sleeve 5 and syringe 1 are all transparent, on described syringe 1, are provided with scale 101, and whether the through hole 121 of being convenient to observe on valve ball 12 is aimed at the pin hole on syringe needle 2, also can learn the amount of blood of taking out to obtain.
Above specific descriptions of the present utility model are intended to illustrate the implementation of specific embodiments, can not be interpreted as it is to restriction of the present utility model, those skilled in the art are under instruction of the present utility model, can on the embodiment basis of describing in detail, make various variants, within these variants all should be included in design of the present utility model.This utility model scope required for protection only will be stated and be limited by described right.
Claims (7)
1. a safe arterial blood air tube, comprise syringe, syringe needle, the needle stand being made into integration with syringe and the piston that is positioned at syringe, described syringe needle and described needle stand are fixed, it is characterized in that: described safe arterial blood air tube also comprises sleeve, control stick, brake block, button, limited block, otic placode, spring, valve ball and knob, described syringe is arranged on the inner chamber of sleeve, described control stick is fixed on the upper end of syringe and stretches out outside sleeve, described piston is arranged in the inside of syringe and control stick and stretches out outside control stick, the lower end of described sleeve offers an outlet, described outlet is corresponding with described syringe needle, described brake block is fixed on the ring wall of described control stick, described button is arranged on outside sleeve and in order to control described brake block, described limited block is fixed on the inwall of described sleeve lower end, described otic placode is fixed on the outer wall of described syringe lower end, and described spring housing is located on syringe and movable and limited block and otic placode clamping, the inner chamber of described needle stand is set to the valve pocket matching with valve ball, described valve ball is movably arranged in described valve pocket, is provided with a through hole on described valve ball, in described through hole, is provided with anticoagulant, one end of described knob is fixed on described valve ball, and its other end stretches out outside sleeve.
2. safe arterial blood air tube according to claim 1, is characterized in that: the length direction along sleeve on the lower end outer wall of described sleeve is provided with an opening, and described knob can slide up and down along described opening.
3. safe arterial blood air tube according to claim 1, is characterized in that: described control stick inside is provided with a through hole, and described piston runs through described through hole.
4. safe arterial blood air tube according to claim 1, it is characterized in that: on described sleeve, be provided with along its length three apertures and be respectively from top to bottom the first hole, the second hole and the 3rd hole, described brake block can be stuck in described arbitrary aperture, and described button is corresponding with described aperture to press described brake block.
5. safe arterial blood air tube according to claim 1, is characterized in that: described limited block is positioned at described otic placode below, and it is inconsistent with described limited block and otic placode respectively that described spring housing is located at syringe two ends outer and described spring.
6. safe arterial blood air tube according to claim 1, is characterized in that: described sleeve and syringe are all transparent.
7. safe arterial blood air tube according to claim 1, is characterized in that: on described syringe, be provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219896.8U CN203815467U (en) | 2014-04-30 | 2014-04-30 | Safe arterial blood gas needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219896.8U CN203815467U (en) | 2014-04-30 | 2014-04-30 | Safe arterial blood gas needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203815467U true CN203815467U (en) | 2014-09-10 |
Family
ID=51471021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420219896.8U Expired - Fee Related CN203815467U (en) | 2014-04-30 | 2014-04-30 | Safe arterial blood gas needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203815467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595324A (en) * | 2017-09-29 | 2018-01-19 | 施康培医疗科技（武汉）有限公司 | A kind of full-automatic negative-pressure aspirates rotating cutting type biopsy needle |
-
2014
- 2014-04-30 CN CN201420219896.8U patent/CN203815467U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595324A (en) * | 2017-09-29 | 2018-01-19 | 施康培医疗科技（武汉）有限公司 | A kind of full-automatic negative-pressure aspirates rotating cutting type biopsy 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: 20140910 Termination date: 20210430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |