CN210541584U - Artery blood taking needle - Google Patents
Artery blood taking needle Download PDFInfo
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- CN210541584U CN210541584U CN201920661754.XU CN201920661754U CN210541584U CN 210541584 U CN210541584 U CN 210541584U CN 201920661754 U CN201920661754 U CN 201920661754U CN 210541584 U CN210541584 U CN 210541584U
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Abstract
The utility model belongs to the technical field of medical equipment. An artery blood taking needle comprises a needle head and a blood taking needle cylinder, wherein the needle head is connected with the blood taking needle cylinder, the artery blood taking needle further comprises a positive pressure indwelling needle joint, the positive pressure indwelling needle joint comprises a needle seat and an indwelling hose, a blood transfusion port is formed in one end of the needle seat, the indwelling hose is connected with the blood transfusion port of the needle seat, the other end of the needle seat is a penetrating end of the needle head, the needle head can penetrate into the needle seat from the penetrating end of the needle seat and penetrates out of the indwelling hose through the blood transfusion port, and the indwelling hose is assisted to penetrate into an artery; a sealing plug is arranged in the needle base, one end of the sealing plug is tightly attached to the blood transfusion port to seal the blood transfusion port, and the other end of the sealing plug is flush with the input end of the needle base; the positive pressure remaining needle joint is detachably connected with the blood sampling needle cylinder, and a sealing valve is arranged at one end of the blood sampling needle cylinder, which corresponds to the needle head. The artery blood taking needle of the utility model has high safety performance, good sealing performance and can effectively reduce the pain of blood taking of patients.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, in particular to artery blood taking needle.
Background
The arterial blood gas analysis has important significance for clinically guiding oxygen therapy to adjust various parameters of mechanical ventilation, correcting acid-base and electrolyte imbalance and the like. The leakproofness of blood specimen is guaranteed in artery blood sampling needs, when a plurality of blood specimens need to be gathered and examine time measuring, must extract the syringe needle, prevents artery blood return, can not once only gather all blood specimen, divides many times to prick the needle blood sampling to the patient, has increased patient's misery. At present, the blood taking needle of disposable arterial blood gas needle adopts the syringe needle of disposable aseptic syringe usually, when having gathered the blood sample and encapsulate, needs medical personnel's two hands rotatory syringe top sealing plug to seal, and the sealed difficult phenomenon of syringe often appears, and the blood sample can not be fine isolated with external, has influenced work efficiency and detection analysis result.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing the artery blood taking needle which has high safety performance, good sealing performance and can effectively reduce the pain of a patient.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
an artery blood taking needle comprises a needle head and a blood taking needle cylinder, wherein the needle head is connected with the blood taking needle cylinder, the artery blood taking needle further comprises a positive pressure indwelling needle joint, the positive pressure indwelling needle joint comprises a needle seat and an indwelling hose, a blood transfusion port is formed in one end of the needle seat, the indwelling hose is connected with the blood transfusion port of the needle seat, the other end of the needle seat is a penetrating end of the needle head, the needle head can penetrate into the needle seat from the penetrating end of the needle seat and penetrates out of the indwelling hose through the blood transfusion port, and the indwelling hose is assisted to penetrate into an artery; a sealing plug is arranged in the needle base, one end of the sealing plug is tightly attached to the blood transfusion port to seal the blood transfusion port, and the other end of the sealing plug is flush with the input end of the needle base; the positive pressure remaining needle joint is detachably connected with the blood sampling needle cylinder, and a sealing valve is arranged at one end of the blood sampling needle cylinder, which corresponds to the needle head.
Furthermore, the sealing valve comprises a valve body, a valve core and an adjusting rod, the valve core is installed in the valve body, the adjusting rod is connected to the valve core, a sealing hole is formed in the valve body, and the sealing hole is a blind hole, is located on the inner wall of the valve body and is located right below the valve core.
Furthermore, one end of the valve body is detachably connected with the needle seat, and the other end of the valve body is fixedly connected with the blood sampling needle cylinder.
Furthermore, a silica gel sealing layer is arranged on the valve core.
Furthermore, a piston is arranged in the blood sampling needle cylinder, the piston is connected with one end of a piston rod, and the other end of the piston rod is connected with the push plate.
Furthermore, the needle head is detachably connected with the blood sampling needle cylinder.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
1. the artery blood taking needle of the utility model has high safety performance, good sealing performance and can effectively reduce the pain of blood taking of patients. Keep somewhere the needle joint through setting up the malleation, and the malleation is kept somewhere the needle joint and can be dismantled with the blood sampling cylinder and be connected, and the malleation is kept somewhere the needle joint and can be prevented blood backward flow after the blood sampling finishes, and the blood sampling cylinder can be dismantled and change and gather other blood samples to the seal valve can seal the blood sampling cylinder, prevents blood pollution.
2. The sealing valve of the utility model is convenient and simple to use and has good sealing performance. Through set up the sealed hole on the valve body, the sealed hole is a blind hole to be located the case under the position, when sealing up the blood sampling cylinder, press the regulation pole and make the case descend, the bottom inlays in the sealed hole, forms stopper column structure, thoroughly cuts the blood fluid, has improved the leakproofness greatly, has guaranteed that blood sample and external isolated, has improved work efficiency and detection and analysis result accuracy.
Drawings
Fig. 1 is a schematic view of the overall structure of the artery blood taking needle of the present invention.
FIG. 2 is an assembly schematic diagram of the artery blood taking needle of the present invention
Fig. 3 is a schematic structural view of the sealing valve of the present invention.
Wherein, labeled in the figures: 1-a needle head; 2-a blood sampling syringe; 3-a needle seat; 4-blood transfusion mouth; 5-closing the plug; 6-sealing the valve; 61-a valve body; 62-a valve core; 63-adjusting the rod; 64-sealing the hole; 7-a piston; 8-a piston rod; 9-pushing the plate; 10-indwelling hose.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, an arterial blood collection needle comprises a needle 1 and a blood collection needle cylinder 2, wherein the needle 1 is connected with the blood collection needle cylinder 2, a piston 7 is arranged in the blood collection needle cylinder 2, the piston 7 is connected with one end of a piston rod 8, and the other end of the piston rod 8 is connected with a push plate 9; the blood transfusion needle is characterized by further comprising a positive-pressure indwelling needle connector, wherein the positive-pressure indwelling needle connector comprises a needle seat 3 and an indwelling hose 10, a blood transfusion port 4 is formed in one end of the needle seat 3, the indwelling hose 10 is connected with the blood transfusion port 4 of the needle seat 3, the other end of the needle seat 3 is a penetrating end of the needle head 1, the needle head 1 can penetrate into the needle seat 3 from the penetrating end of the needle seat 3 and penetrates out of the indwelling hose 10 through the blood transfusion port 4, and the indwelling hose 10 is assisted to penetrate into an arterial blood vessel; a sealing plug 5 is arranged in the needle base 3, one end of the sealing plug 5 is tightly attached to the blood transfusion port 4 to seal the blood transfusion port 4, and the other end of the sealing plug 5 is flush with the input end of the needle base 3; the positive pressure remaining needle joint is detachably connected with the blood sampling needle cylinder 2, and one end of the blood sampling needle cylinder 2 corresponding to the needle head 1 is provided with a sealing valve 6.
The utility model discloses a needle joint is kept somewhere to the setting malleation, and the malleation is kept somewhere needle joint and can be dismantled with blood sampling cylinder 2 and be connected, the malleation is kept somewhere needle joint and can be prevented the blood backward flow after the blood sampling finishes, owing to adopt elastic soft sealing plug 5, syringe needle 1 is at the in-process of extracting, the terminal surface of front cover stopper forms the concave surface, syringe needle 1 is extracting the back, the concave surface resets, make and keep somewhere the interior pressure-fired that produces of hose 10, prevent the blood reflux to keep somewhere in hose 10, thereby avoided keeping somewhere the formation of thrombus in hose 10, thereby alleviateed nursing work, blood sampling cylinder 2 can be dismantled and change and gather other blood samples, and seal valve 6 can seal blood sampling cylinder 2, prevent.
The sealing valve 6 comprises a valve body 61, a valve core 62 and an adjusting rod 63, wherein the valve core 62 is installed in the valve body 61, a silica gel sealing layer is arranged on the valve core 62 to ensure the sealing property, the adjusting rod 63 is connected to the valve core 62, a sealing hole 64 is arranged in the valve body 61, and the sealing hole 64 is a blind hole and is positioned on the inner wall of the valve body 61 and at a position right below the valve core 62. Through set up sealed hole 64 on valve body 61, sealed hole 64 is a blind hole to be located case 62 under the position, when sealing up blood sampling cylinder 2, press down regulation pole 63 and make case 62 descend, the bottom inlays in sealed hole 64, forms stopper column structure, thoroughly cuts the blood fluid, has improved the leakproofness greatly, has guaranteed that blood sample and external isolated, has improved work efficiency and detection and analysis result accuracy.
In order to facilitate replacement of the blood sampling needle cylinder 2, one end of the valve body 61 is detachably connected with the needle seat 3, and the other end is fixedly connected with the blood sampling needle cylinder 2.
The needle head 1 and the blood sampling needle cylinder 2 are fixedly connected or detachably connected.
The utility model discloses an artery blood taking needle's theory of operation and application method do: the needle head 1 penetrates into the needle base 3 from the penetrating end of the needle base 3, penetrates through the sealing plug 5 and is the same as the indwelling hose 10, after the indwelling hose 10 is placed in an arterial blood vessel, blood drawing is started, when the blood drawing is stopped, the needle head 1 is firstly and slowly pulled out of the needle base 3, in the process of pulling out, under the action of friction force between the needle head 1 and the sealing plug 5, the end surface of the sealing plug 5 positioned at the blood transfusion port 4 forms a concave surface, and at the moment, the needle head 1 is also communicated with the indwelling hose 10 and transmits blood; when the concave surface of the end surface of the closing plug 5 is reset, micro positive pressure is generated in the indwelling hose 10, and blood is prevented from flowing back into the indwelling hose 10, so that thrombus in the indwelling hose 10 is prevented from being formed. After the needle head 1 is pulled out, the valve core 62 descends by pressing the adjusting rod 63, the bottom of the valve core is embedded in the sealing hole 64 to form a plug-shaped structure, blood fluid is thoroughly cut off, the sealing performance is greatly improved, a blood sample is isolated from the outside, and the working efficiency and the accuracy of detection and analysis results are improved.
The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.
Claims (6)
1. The utility model provides an artery blood taking needle, includes syringe needle and blood sampling cylinder, the syringe needle with the blood sampling cylinder is connected, its characterized in that: the blood transfusion device is characterized by further comprising a positive-pressure indwelling needle connector, wherein the positive-pressure indwelling needle connector comprises a needle seat and an indwelling hose, a blood transfusion port is formed in one end of the needle seat, the indwelling hose is connected with the blood transfusion port of the needle seat, the other end of the needle seat is a penetrating end of a needle head, the needle head can penetrate into the needle seat from the penetrating end of the needle seat and penetrate out of the indwelling hose through the blood transfusion port, and the indwelling hose is assisted to penetrate into an arterial blood vessel; a sealing plug is arranged in the needle base, one end of the sealing plug is tightly attached to the blood transfusion port to seal the blood transfusion port, and the other end of the sealing plug is flush with the input end of the needle base; the positive pressure remaining needle joint is detachably connected with the blood sampling needle cylinder, and a sealing valve is arranged at one end of the blood sampling needle cylinder, which corresponds to the needle head.
2. An arterial blood collection needle according to claim 1 wherein: the sealing valve comprises a valve body, a valve core and an adjusting rod, the valve core is installed in the valve body, the adjusting rod is connected to the valve core, a sealing hole is formed in the valve body, the sealing hole is a blind hole, and the sealing hole is located on the inner wall of the valve body and located right below the valve core.
3. An arterial blood collection needle according to claim 2, wherein: one end of the valve body is detachably connected with the needle seat, and the other end of the valve body is fixedly connected with the blood sampling needle cylinder.
4. An arterial blood collection needle according to claim 2, wherein: and a silica gel sealing layer is arranged on the valve core.
5. An arterial blood collection needle according to claim 1 wherein: the blood sampling needle cylinder is internally provided with a piston, the piston is connected with one end of a piston rod, and the other end of the piston rod is connected with the push plate.
6. An arterial blood collection needle according to claim 2, wherein: the needle head is detachably connected with the blood sampling needle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920661754.XU CN210541584U (en) | 2019-05-09 | 2019-05-09 | Artery blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920661754.XU CN210541584U (en) | 2019-05-09 | 2019-05-09 | Artery blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210541584U true CN210541584U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920661754.XU Active CN210541584U (en) | 2019-05-09 | 2019-05-09 | Artery blood taking needle |
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| CN (1) | CN210541584U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113171092A (en) * | 2021-05-14 | 2021-07-27 | 江苏崇恒医疗科技有限公司 | Artery blood sample collector capable of being plugged quickly |
| CN115444414A (en) * | 2022-08-24 | 2022-12-09 | 广州市妇女儿童医疗中心 | Blood taking needle and use method thereof |
-
2019
- 2019-05-09 CN CN201920661754.XU patent/CN210541584U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113171092A (en) * | 2021-05-14 | 2021-07-27 | 江苏崇恒医疗科技有限公司 | Artery blood sample collector capable of being plugged quickly |
| CN113171092B (en) * | 2021-05-14 | 2023-02-07 | 江苏崇恒医疗科技有限公司 | Artery blood sample collector capable of being plugged quickly |
| CN115444414A (en) * | 2022-08-24 | 2022-12-09 | 广州市妇女儿童医疗中心 | Blood taking needle and use method thereof |
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