CN214712558U - Special syringe of safe type blood gas - Google Patents
Special syringe of safe type blood gas Download PDFInfo
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- CN214712558U CN214712558U CN202022715501.1U CN202022715501U CN214712558U CN 214712558 U CN214712558 U CN 214712558U CN 202022715501 U CN202022715501 U CN 202022715501U CN 214712558 U CN214712558 U CN 214712558U
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- Prior art keywords
- needle
- pintle
- sealing
- sealing part
- blood gas
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Abstract
The utility model discloses a special syringe of safe type blood gas, include: the bottom of the needle cylinder is provided with a hollow nipple which is communicated with the cavity of the needle cylinder; the plunger is in fit connection with the cavity, and the plunger can move in the cavity in a piston mode; the needle head comprises a pintle and an injection needle, the pintle is detachably connected with the nipple, and the injection needle is fixed on the pintle; the sealing device comprises a fixing part and a sealing part, the fixing part is fixed on the pintle, the sealing part is telescopic and connected with the fixing part, and the sealing part is connected with the injection needle in a sliding manner. Can completely cut off the air fast for blood specimen measurement is more accurate, the utility model discloses use the medical equipment field.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a safe special injector for blood and gas.
Background
In clinical work, the arterial blood gas analysis is an effective operation commonly used for clinical diagnosis and rescue of patients, and the arterial blood sample collection method has important influence on the blood gas analysis result. Whether to isolate the air and to coagulate blood during sampling and later-stage examination is important. The currently clinically applied arterial blood-gas needle has the following defects: 1. after puncture, the needle cap is sleeved back, the closed cover is replaced, the blood sample in the process firstly contacts the air in the needle cap, and then the needle head is taken down and contacts the air again when the cover is replaced; 2. the rubber plug is easy to be punctured by the needle head to cause needle stick injury; 3. a plurality of operation programs are available; 4. the plug is relatively hard in gel, so that the needle cannot be easily inserted into the plug to isolate air, and the plug can be punctured by force to cause needle stick injury.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a special syringe of safe type blood gas can isolated air fast for blood specimen measurement is more accurate.
The embodiment of the utility model provides an adopted technical scheme is: a safety type injector special for blood gas comprises: the bottom of the needle cylinder is provided with a hollow nipple which is communicated with the cavity of the needle cylinder; the plunger is in fit connection with the cavity, and the plunger can move in the cavity in a piston mode; the needle head comprises a pintle and an injection needle, the pintle is detachably connected with the nipple, and the injection needle is fixed on the pintle; the sealing device comprises a fixing part and a sealing part, the fixing part is fixed on the pintle, the sealing part is telescopic and connected with the fixing part, and the sealing part is connected with the injection needle in a sliding manner.
According to the utility model discloses special syringe of safe type blood gas has following beneficial effect at least: after the blood sample is collected by the blood gas needle, the blood gas needle can be sealed by the sealing device, so that the blood sample is prevented from directly contacting with air, and the accuracy of blood sample detection is ensured.
According to some embodiments of the utility model, be equipped with a plurality of telescopic links on the sealing device, the sealing passes through the telescopic link with the fixed part telescopic links to each other.
According to some embodiments of the utility model, be equipped with the slide bar on the fixed part, the sealing is inside be equipped with slide bar matched with spout, the sealing passes through the slide bar with the spout with the fixed part slides and links to each other.
According to some embodiments of the utility model, the slide bar top is equipped with blocks the piece, the spout inside be equipped with block the corresponding recess of piece, block the piece be used for with the sealing stops and is fixed in the slide bar top.
According to some embodiments of the invention, the sealing portion is a rubber block.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a telescopic rod of a safety type special blood and gas injector according to an embodiment of the present invention in a contracted state;
FIG. 2 is a schematic view of the extended state of the telescopic rod of the safety type special blood and gas injector according to the embodiment of the present invention;
FIG. 3 is a schematic view of the safety type special blood and gas syringe of the embodiment of the present invention in an unextended state;
FIG. 4 is a schematic cross-sectional view of the safety type special blood and gas syringe of the embodiment of the present invention in an extended state;
fig. 5 is a partially enlarged view of a portion a in fig. 4.
Reference numerals: 100-needle cylinder; 200-a plunger; 300-a needle head; 310-pintle; 320-an injection needle; 400-sealing means; 410-a fixed part; 411-a stop block; 420-a seal; 421-groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Referring to fig. 1 and 3, in some embodiments of the present invention, a safety type injector for blood gas comprises:
a hollow nipple is arranged at the bottom of the needle cylinder 100, and the nipple is communicated with the cavity of the needle cylinder 100;
the plunger 200 is matched and connected with the cavity, and the plunger 200 can move in the cavity in a piston mode;
the needle head 300, the needle head 300 includes the pintle 310 and injects the needle 320, the pintle 310 is connected with the nipple detachably, the inject needle 320 is fixed on the pintle 310;
the sealing device 400 comprises a fixing part 410 and a sealing part 420, wherein the fixing part 410 is fixed on the pintle 310, the sealing part 420 is telescopically connected with the fixing part 410, and the sealing part 420 is slidably connected with the injection needle 320.
Specifically, the implementation process is as follows: when a patient takes a blood sample, the medical staff can synchronously slide the sealing device 400 in the process of pulling out the needle, so that the sealing part 420 sleeved on the injection needle 320 can directly move to the needle point position when the needle point of the injection needle is pulled out of the human body, and the blood gas needle is sealed; in addition, when the injection needle 320 is used, the sealing portion 420 is sleeved on the injection needle 320, so that the sealing portion and the injection needle 320 are tightly connected and cannot easily slide.
Referring to fig. 1 and 2, in some embodiments of the present invention, a plurality of telescopic rods are provided on the sealing device 400, the sealing portion 420 is connected with the telescopic end of the fixing portion 410, the telescopic rod is used to slide the sealing portion 420, and the sliding distance of the sealing portion 420 is determined by the length of the telescopic rod, so that the needle point of the injection needle 320 is just plugged by the sealing portion 420, the blood sample is prevented from being extracted and contacted with the air, and the accuracy of detection is improved.
Referring to fig. 3 and 4, in some embodiments of the present invention, a sliding rod is disposed on the fixing portion 410, the sealing portion 420 is telescopically connected to the fixing portion 410 via a telescopic rod, and the sealing portion 420 moves up and down on the sliding rod to make the sealing portion 420 block the needle point of the injection needle 320, so as to prevent the extracted blood sample from contacting with air, and improve the accuracy of detection.
Referring to fig. 4 and 5, in some embodiments of the present invention, the top end of the sliding rod is provided with a blocking block 411, the inside of the sliding chute is provided with a groove 421 corresponding to the blocking block 411, the blocking block 411 is used for blocking the sealing portion 420 and fixing the top end of the sliding rod, so that the sealing portion 420 is limited on the sliding rod and is not easy to be disengaged, and when the sealing portion 420 moves to the position of the blocking block 411, the sealing portion 420 blocks the needle point of the injection needle 320 just, and the medical staff does not need to adjust the position of the sealing portion by himself, which is more convenient to use.
In some embodiments of the present invention, the sealing portion 420 is a rubber block, the sealing performance and elasticity of the rubber block are better, when the needle tube of the injection needle 320 moves to the needle point portion, the rubber block can rely on the elasticity of itself, and the small hole penetrated by the needle tube contracts, so that the rubber block can isolate the external air at this time.
Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (5)
1. The utility model provides a special syringe of safe type blood gas which characterized in that includes:
the bottom of the needle cylinder (100) is provided with a hollow nipple, and the nipple is communicated with the cavity of the needle cylinder (100);
a plunger (200), wherein the plunger (200) is in fit connection with the cavity, and the plunger (200) can move in the cavity in a piston mode;
a needle (300), the needle (300) comprising a pintle (310) and an injection needle (320), the pintle (310) being removably attached to the nipple, the injection needle (320) being secured to the pintle (310);
the sealing device (400) comprises a fixing part (410) and a sealing part (420), the fixing part (410) is fixed on the pintle (310), the sealing part (420) is telescopically connected with the fixing part (410), and the sealing part (420) is connected with the injection needle (320) in a sliding mode.
2. The safety type special blood gas injector according to claim 1, characterized in that: the sealing device (400) is provided with a plurality of telescopic rods, and the sealing part (420) is telescopically connected with the fixing part (410) through the telescopic rods.
3. The safety type special blood gas injector according to claim 1, characterized in that: the fixing part (410) is provided with a sliding rod, a sliding groove matched with the sliding rod is arranged in the sealing part (420), and the sealing part (420) is connected with the fixing part (410) in a sliding mode through the sliding rod and the sliding groove.
4. The safety type special blood gas injector according to claim 3, characterized in that: the sliding rod is characterized in that a blocking block (411) is arranged at the top end of the sliding rod, a groove (421) corresponding to the blocking block (411) is formed in the sliding groove, and the blocking block (411) is used for blocking and fixing the sealing part (420) to the top end of the sliding rod.
5. The safety type injector special for blood gas according to any one of claims 1 to 4, wherein: the sealing part (420) is a rubber block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715501.1U CN214712558U (en) | 2020-11-20 | 2020-11-20 | Special syringe of safe type blood gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715501.1U CN214712558U (en) | 2020-11-20 | 2020-11-20 | Special syringe of safe type blood gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214712558U true CN214712558U (en) | 2021-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022715501.1U Active CN214712558U (en) | 2020-11-20 | 2020-11-20 | Special syringe of safe type blood gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214712558U (en) |
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2020
- 2020-11-20 CN CN202022715501.1U patent/CN214712558U/en active Active
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