CN215778116U - Artery indwelling needle blood sampling injector - Google Patents
Artery indwelling needle blood sampling injector Download PDFInfo
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- CN215778116U CN215778116U CN202122196707.2U CN202122196707U CN215778116U CN 215778116 U CN215778116 U CN 215778116U CN 202122196707 U CN202122196707 U CN 202122196707U CN 215778116 U CN215778116 U CN 215778116U
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Abstract
The utility model discloses an artery indwelling needle blood sampling injector which comprises an outer injection barrel pipe, wherein an inner injection barrel pipe is fixed at the inner center of the outer injection barrel pipe, a first piston is sleeved on the outer wall of the inner injection barrel pipe, a pull pipe is fixed on the outer wall of the top of the first piston, an injection joint is connected to the inner wall of the bottom of the inner injection barrel pipe in a penetrating manner, a three-way valve is arranged on the outer wall of the middle part of the injection joint, and one end of the three-way valve is connected with a liquid conveying pipe in a penetrating manner; the injector with the structure can complete blood sampling at one time, a blood sampling stage is adjusted through the three-way valve, blood containing heparin liquid at the front section is extracted through the matching of the outer injection barrel pipe and the first piston, and blood gas analysis blood is extracted through the matching of the inner injection barrel pipe and the second piston; the problem of traditional blood sampling need take a plurality of syringes to go on, the in-process needs frequent change syringe, and the blood sampling process is comparatively inconvenient, wastes time and energy is solved.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a blood sampling injector with an arterial indwelling needle.
Background
The arterial blood gas analysis refers to a technical process for analyzing different types of gases and acid-base substances in various gases and liquids; the specimens can be from blood, urine, cerebrospinal fluid and various mixed gases, but the specimens are blood in most clinical application; the blood samples comprise arterial blood, venous blood, mixed venous blood and the like, wherein the application of arterial blood gas analysis is most common; the medical staff needs to analyze the arterial blood gas for 2-3 times in the resuscitation process of doctors and patients; an arterial needle is usually reserved on the arm of a patient, and medical personnel directly take blood from a reserved joint; but the trouble is that firstly, 5/10ml of injector is needed to extract the blood containing heparin liquid at the front section, then the injector is separated, and then the injector is connected to extract arterial blood by a blood gas needle; the syringe structure on the scene is comparatively traditional simple, as above-mentioned blood sampling of arterial blood gas analysis need take a plurality of syringes to go on, and the in-process needs frequent change syringe, and the blood sampling process is comparatively inconvenient, wastes time and energy, influences the holistic efficiency of arterial blood gas analysis, therefore designs an artery and keeps somewhere needle blood sampling syringe and is very meaningful.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a blood sampling injector with an arterial indwelling needle.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model relates to an artery indwelling needle blood sampling injector which comprises an outer injection barrel, wherein an inner injection barrel is fixed at the center of the inner part of the outer injection barrel, a first piston is sleeved on the outer wall of the inner injection barrel, a pull pipe is fixed on the outer wall of the top of the first piston, an injection joint is connected on the inner wall of the bottom of the inner injection barrel in a penetrating manner, a three-way valve is arranged on the outer wall of the middle part of the injection joint, one end of the three-way valve is connected with an infusion pipe in a penetrating manner, the other end of the infusion pipe penetrates through the inner part of the outer injection barrel, a second piston is arranged in the inner injection barrel, and the outer wall of the top of the second piston is connected with the pull rod.
In a preferred embodiment of the present invention, the top end of the pulling tube penetrates the outside of the outer injection tube, and the pulling rod penetrates the outside of the inner injection tube and the pulling tube.
As a preferable technical scheme of the utility model, piston handles are fixed at the top ends of the pull tube and the pull rod.
As a preferred technical scheme of the utility model, the outer walls of two sides of the top of the outer injection bobbin are fixed with edge hanging plates.
As a preferable technical scheme of the present invention, the outer walls of the outer syringe barrel and the inner syringe barrel are provided with scale marks in a distributed manner.
As a preferable technical scheme of the utility model, a protective sleeve is sleeved on the outer wall of the injection joint.
The utility model has the beneficial effects that: the blood sampling injector with the artery indwelling needle comprises:
the syringe has a compact and simple overall structure and can be conveniently produced; the injector with the structure can complete blood sampling at one time, a blood sampling stage is adjusted through the three-way valve, blood containing heparin liquid at the front section is extracted through the matching of the outer injection barrel pipe and the first piston, and blood gas analysis blood is extracted through the matching of the inner injection barrel pipe and the second piston; the problems that a plurality of syringes are needed to be used for blood sampling, the syringes need to be frequently replaced in the process, the blood sampling process is inconvenient, and time and labor are wasted are solved; the overall efficiency of arterial blood gas analysis is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of an arterial indwelling needle blood sampling injector of the present invention;
FIG. 2 is a front view sectional structure diagram of the artery indwelling needle blood sampling injector of the present invention;
FIG. 3 is an enlarged view of the structure of the area A in FIG. 2 according to the present invention;
fig. 4 is an enlarged view of the structure of the region B in fig. 2 according to the present invention.
In the figure: 110. an outer syringe barrel; 120. an inner syringe barrel; 130. a first piston; 140. pulling the tube; 150. an injection fitting; 160. a three-way valve; 170. a transfusion tube; 180. a second piston; 190. a pull rod; 200. a piston handle; 300. along the hanging plate; 400. and (6) a protective sleeve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1, 2, 3 and 4, the blood sampling injector for arterial indwelling needle according to the present invention includes an outer syringe tube 110, an inner syringe tube 120 is fixed at the center of the interior of the outer syringe tube 110, a first piston 130 is sleeved on the outer wall of the inner syringe tube 120, a pull tube 140 is fixed on the outer wall of the top of the first piston 130, an injection adaptor 150 is connected to the inner wall of the bottom of the inner syringe tube 120 in a penetrating manner, a three-way valve 160 is arranged on the outer wall of the middle portion of the injection adaptor 150, one end of the three-way valve 160 is connected to a liquid transfer tube 170 in a penetrating manner, the other end of the liquid transfer tube 170 is connected to the interior of the outer syringe tube 110 in a penetrating manner, a second piston 180 is arranged inside the inner syringe tube 120, a pull rod 190 is connected to the outer wall of the top of the second piston 180, and during the blood sampling process by the injector with the structure, the outer syringe 110 is matched with the first piston 130 to extract blood containing heparin solution at the front portion, then the blood gas analysis blood is pumped out through the matching of the inner injection barrel pipe 120 and the second piston 180; the problem of traditional blood sampling need take a plurality of syringes to go on, the in-process needs frequent change syringe, and the blood sampling process is comparatively inconvenient, wastes time and energy is solved.
The top end of the pull tube 140 penetrates the outer injection tube 110, and the pull rod 190 penetrates the outer injection tube 120 and the pull tube 140.
Wherein, the top ends of the pull tube 140 and the pull rod 190 are fixed with piston handles 200.
Wherein, the outer walls of both sides of the top of the outer syringe barrel 110 are fixed with edge hanging plates 300.
Wherein, the outer walls of the outer injection barrel 110 and the inner injection barrel 120 are distributed with scale marks.
Wherein, the outer wall of the injection connector 150 is sleeved with a protective sleeve 400.
When the artery indwelling needle blood sampling injector works, medical staff often keep the artery needle on the arm of a patient, and the medical staff directly takes blood from the keeping joint; the injector is taken in the blood sampling process, the injection connector 150 is connected with the indwelling arterial needle through the injection connector 150, the three-way valve 160 is rotated and adjusted to enable the injection connector 150 to be communicated with the infusion tube 170, medical personnel drive the first piston 130 through the piston handle 200 and the pull tube 140, the first piston 130 moves in the outer injection tube 110, so that the blood in the initial section is sucked, the blood enters the outer injection tube 110 through the injection connector 150 and the infusion tube 170, and the blood containing heparin liquid in the front section is sucked; then the three-way valve 160 is rotated to close the injection joint 150 and the infusion tube 170, the medical staff drives the second piston 180 through the piston handle 200 and the pull rod 190, the second piston 180 moves in the inner injection barrel 120, and the blood enters the inner injection barrel 120 through the injection joint 150 to finish the extraction of the blood for blood gas analysis; after the blood is drawn out, the medical staff rotates the adjusting three-way valve 160 again to connect the injection joint 150 with the infusion tube 170, and presses the piston handle 200 and the pull tube 140 to drive the first piston 130 to move downwards in the outer injection tube 110, so as to send the blood containing heparin liquid to the artery of the patient; after the completion, the injector is taken down from the indwelling arterial needle, the whole blood sampling work is completed, and the medical staff analyzes the blood collected in the internal injection tube 120 again to perform arterial blood gas analysis.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The blood sampling injector of the artery indwelling needle comprises an outer injection barrel (110) and is characterized in that, an inner syringe barrel (120) is fixed at the inner center of the outer syringe barrel (110), a first piston (130) is sleeved on the outer wall of the inner injection barrel pipe (120), a pull pipe (140) is fixed on the outer wall of the top of the first piston (130), the inner wall of the bottom of the inner injection barrel pipe (120) is connected with an injection joint (150) in a through way, a three-way valve (160) is arranged on the outer wall of the middle part of the injection joint (150), one end of the three-way valve (160) is connected with a transfusion tube (170) in a penetrating way, and the other end of the transfusion tube (170) penetrates through the inner part of the outer injection tube (110), a second piston (180) is arranged in the inner injection barrel pipe (120), and a pull rod (190) is connected to the outer wall of the top of the second piston (180).
2. The arterial needle lancing syringe of claim 1, wherein the pull tube (140) has a tip extending through the exterior of the outer syringe barrel (110), and the pull rod (190) extends through the interior of the inner syringe barrel (120) and the pull tube (140).
3. The arterial needle collection syringe of claim 2, characterized in that the top ends of the pull tube (140) and the pull rod (190) are fixed with piston handles (200).
4. The arterial needle lancing syringe according to claim 1, wherein a rim hanging plate (300) is fixed to the outer wall of both sides of the top of the outer syringe barrel (110).
5. The arterial needle collection syringe according to claim 1, wherein the outer walls of the outer syringe barrel (110) and the inner syringe barrel (120) are provided with scale marks.
6. The arterial needle collection injector of claim 1, characterized in that the outer wall of the injection joint (150) is sleeved with a protective sleeve (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122196707.2U CN215778116U (en) | 2021-09-10 | 2021-09-10 | Artery indwelling needle blood sampling injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122196707.2U CN215778116U (en) | 2021-09-10 | 2021-09-10 | Artery indwelling needle blood sampling injector |
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| Publication Number | Publication Date |
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| CN215778116U true CN215778116U (en) | 2022-02-11 |
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| CN202122196707.2U Active CN215778116U (en) | 2021-09-10 | 2021-09-10 | Artery indwelling needle blood sampling injector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090152A (en) * | 2022-06-17 | 2022-09-23 | 无锡市第五人民医院 | Liquid split charging device for microbial detection |
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2021
- 2021-09-10 CN CN202122196707.2U patent/CN215778116U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090152A (en) * | 2022-06-17 | 2022-09-23 | 无锡市第五人民医院 | Liquid split charging device for microbial detection |
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