CN209474628U - Vacuum blood sampler is used in invasive arterial pressure monitoring - Google Patents

Abstract

The application provides a vacuum blood collection device for invasive arterial blood pressure monitoring, which includes an arterial indwelling needle, a pressure connecting tube, a three-way stopcock, a continuous flushing system and an electronic monitor; one end of the arterial indwelling needle is connected to the three-way through a pressure connecting tube The first end of the cock valve and the second end of the three-way cock valve are connected to a continuous flushing system through a pressure connection tube, and the continuous flushing system is connected to an electronic monitor; the third end of the three-way cock valve is connected to a blood collection component; the blood collection component includes a three-way Tube, syringe and vacuum blood collection needle, the first end of the three-way pipe is connected with the third end of the three-way stopcock, the second end is connected with the syringe, and the third end is connected with the vacuum blood collection needle. When using this application to collect blood, you only need to operate at the syringe and vacuum blood collection needle, avoid directly operating at the three-way cock valve, and the blood collection component is disposable, and the waste liquid of the flushing pipeline can be collected through the syringe, which can greatly reduce blood infection. probability.

Description

Vacuum blood collection device for invasive arterial blood pressure monitoring

technical field

The application belongs to the technical field of medical devices, and in particular relates to a vacuum blood sampling device for invasive arterial blood pressure monitoring.

Background technique

Invasive arterial blood pressure monitoring is a method of directly measuring intra-arterial blood pressure by connecting a pressure connection tube, a pressure sensor, and a continuous flushing system after an arterial indwelling needle is inserted into the artery. In the ICU ward, invasive arterial blood pressure monitoring also provides a blood collection channel, which is widely used in the intraoperative and postoperative monitoring of patients with shock, severe illness, severe peripheral vasoconstriction, major surgery or life-threatening surgery. Invasive arterial blood pressure monitoring has the following advantages: 1) Direct arterial pressure monitoring is a continuous dynamic change process, not affected by artificial pressure, cuff width and tightness, accurate and reliable, and can be taken at any time; 2) It can be changed according to the arterial waveform 3) Patients can detect sudden changes in arterial pressure early when applying vasoactive drugs; 4) Repeated collection of arterial blood gas samples can reduce the pain of patients. When invasive arterial blood pressure monitoring is used in critically ill patients in ICU, it can greatly reduce the suffering of patients. Because most ICU patients are critically ill, blood needs to be drawn repeatedly so that medical staff can evaluate the patient's recovery, and because of the poor vascular conditions of ICU patients, repeated arterial and venous punctures can easily cause purple skin or skin induration outside the blood vessels of patients; therefore , blood samples drawn from invasive arterial blood pressure monitoring manometry tubes have positive beneficial effects in ICU patients.

Currently, blood collection devices for invasive arterial monitoring include arterial indwelling needles, pressure connection tubes, three-way stopcocks, continuous flushing systems, and electronic monitors. When using the blood collection device for invasive arterial blood collection, first, use the first syringe to draw out the flushing fluid in the pressure connection tube from the third end of the three-way stopcock; Take a blood sample from the three ends, and inject the drawn blood sample into the blood collection tube; finally, use a third syringe to draw out the blood in the pressure connection tube from the third end of the three-way stopcock to ensure that the tube is unobstructed. This method of blood collection is complicated to operate, has a high contamination rate, takes a long time in the blood collection process, and the patient's blood may coagulate. Moreover, if an arterial blood gas sample is taken at the same time, a blood gas needle is required. In addition, when the blood drawn by the second syringe is injected into the blood collection tube, the blood sample may be unqualified such as too much blood or too little blood.

Contents of the invention

In order to overcome the problems in the related art at least to a certain extent, the present application provides a vacuum blood sampling device for invasive arterial blood pressure monitoring.

According to the first aspect of the embodiments of the present application, the present application provides a vacuum blood collection device for invasive arterial blood pressure monitoring, which includes an arterial indwelling needle, a pressure connection tube, a three-way stopcock, a continuous flushing system and an electronic monitor; One end of the arterial indwelling needle is connected to the first end of the three-way stopcock through the pressure connection tube, and the second end of the three-way stopcock is connected to the continuous flushing system through the pressure connection tube, and the continuous The flushing system is connected with the electronic monitor, and the electronic monitor 5 is used to monitor the patient's physical parameters; the third end of the three-way stopcock is connected with a blood collection assembly; the blood collection assembly includes a three-way pipe, a syringe and a vacuum A blood collection needle, the first end of the three-way pipe is connected to the third end of the three-way stopcock, the second end is connected to the syringe, and the third end is connected to the vacuum blood collection needle.

Further, the first end of the three-way pipe is threaded or plugged in to the third end of the three-way plug valve.

Furthermore, when the first end of the three-way pipe is screwed to the third end of the three-way cock valve, the first end of the three-way pipe is provided with an external thread, and the third end of the three-way cock valve The three ends are provided with internal threads matching the external threads of the first end of the tee pipe.

Furthermore, when the first end of the three-way pipe is plugged and connected to the third end of the three-way cock valve, the inner diameter of the first end of the three-way pipe is the same as the third end of the three-way cock valve. The outer diameters of the ends are equal.

Further, the second end of the tee is integrally formed with the syringe.

Further, a first cut-off valve is provided on the conduit connecting the second end of the three-way pipe to the syringe, and a second shut-off valve is provided on the conduit connecting the third end of the three-way pipe to the vacuum blood collection needle. Shut-off valve.

Further, the volume of the syringe is 5mL-20mL.

Further, a needle seat is provided at the connection between the third end of the three-way pipe and the vacuum blood collection needle.

Furthermore, LED lighting lamps are provided on the side wings of the needle holder.

Further, the vacuum blood collection needle is covered with a needle sheath.

According to the above specific embodiments of the present application, it can be seen that at least the following beneficial effects are achieved: the vacuum blood collection device for invasive arterial blood pressure monitoring of the present application is provided with a blood collection assembly, the blood collection assembly includes a three-way tube, a syringe and a vacuum blood collection needle, and the three-way tube is connected At the port of the three-way cock valve, when using this application for blood collection, it only needs to be operated at the syringe and vacuum blood collection needle, avoiding direct operation at the three-way cock valve, which can reduce the risk of infection; and the blood collection component is disposable. The syringe collects the waste liquid of the flushing pipeline, which can greatly reduce the chance of blood infection; the blood collection tube is directly connected to the vacuum blood collection needle, which can avoid the occurrence of unqualified situations such as too much or too little blood in the collected blood sample. The application is practical and convenient, and can simplify the steps of blood collection.

It should be understood that the above general description and the following specific embodiments are only exemplary and explanatory, and are not intended to limit the scope of the present application.

Description of drawings

The accompanying drawings below are a part of the specification of the application, which illustrate the embodiments of the application, and together with the description of the specification, serve to explain the principle of the application.

Fig. 1 is a schematic structural diagram of a vacuum blood sampling device for invasive arterial blood pressure monitoring provided by a specific embodiment of the present application.

In the figure: 1. arterial indwelling needle; 2. pressure connection tube; 3. three-way stopcock; 4. continuous flushing system; 5. electronic monitor; 6. blood collection component; 61. three-way tube; 62. syringe; 63 . Vacuum blood collection needle; 64. First stop valve; 65. Second stop valve; 66. Needle seat; 67. Needle sheath.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly illustrate the spirit of the content disclosed in the application with the accompanying drawings and detailed descriptions. After any person skilled in the art understands the embodiments of the content of the application , when it can be changed and modified by the technology taught in the content of the application, it does not depart from the spirit and scope of the content of the application.

The exemplary embodiments and descriptions of the present application are used to explain the present application, but not to limit the present application. In addition, elements/members with the same or similar numbers used in the drawings and embodiments are used to represent the same or similar parts.

The terms "first", "second", ... etc. used herein do not specifically refer to a sequence or order, nor are they used to limit the present application, but are only used to distinguish elements or operations described with the same technical terms .

Regarding the directional terms used herein, such as: up, down, left, right, front or rear, etc., only refer to the directions of the drawings. Accordingly, the directional terms used are for illustration and not for limitation of the present invention.

As used herein, "comprising", "comprising", "having", "comprising" and so on are all open terms, meaning including but not limited to.

As used herein, "and/or" includes any or all combinations of the stated things.

The "plurality" herein includes "two" and "two or more"; the "multiple groups" herein includes "two groups" and "two or more groups".

The terms "approximately" and "about" used herein are used to modify any quantity or error that can be slightly changed, but these small changes or errors will not change its essence. Generally speaking, the range of slight changes or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments or other numerical values. Those skilled in the art should understand that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.

Certain terms used to describe the present application are discussed below or elsewhere in this specification to provide those skilled in the art with additional guidance in describing the present application.

Fig. 1 shows a schematic structural diagram of a vacuum blood sampling device for invasive arterial blood pressure monitoring according to an embodiment of the present application. As shown in FIG. 1 , the vacuum blood sampling device for invasive arterial blood pressure monitoring includes an arterial indwelling needle 1 , a pressure connection tube 2 , a three-way stopcock 3 , a continuous flushing system 4 and an electronic monitor 5 . One end of the arterial indwelling needle 1 is connected to the first end of the three-way stopcock 3 through the pressure connection tube 2, and the second end of the three-way stopcock 3 is connected to the continuous flushing system 4 through the pressure connection tube 2, and the continuous flushing system 4 is connected to the electronic monitor 5. The electronic monitor 5 is used to monitor the patient's blood pressure and other physical parameters. The third end of the three-way stopcock 3 is connected with a blood collection assembly 6 . The blood collection assembly 6 includes a three-way pipe 61, a syringe 62 and a vacuum blood collection needle 63. The first end of the three-way pipe 61 is connected to the third end of the three-way stopcock 3, the second end is connected to the syringe 62, and the third end is Connect with the vacuum blood collection needle 63.

Specifically, the first end of the three-way pipe 61 is provided with an external thread, the third end of the three-way plug valve 3 is provided with an internal thread that matches the external thread of the first end of the three-way pipe 61, and the three-way pipe 61 The first end is threadedly connected with the third end of the three-way stopcock 3 .

In addition, the first end of the three-way pipe 61 and the third end of the three-way cock valve 3 can also be plugged and connected, and the inner diameter of the first end of the three-way pipe 61 is equal to the outer diameter of the third end of the three-way cock valve 3 .

The second end of the three-way pipe 61 and the syringe 62 can be integrally formed, or can be connected together as two separate parts. The vacuum blood collection needle 63 connected to the third end of the three-way pipe 61 can be connected with a blood collection tube.

A first cut-off valve 64 is arranged on the conduit where the second end of the three-way pipe 61 is connected to the syringe 62 . A second cut-off valve 65 is provided on the conduit where the third end of the three-way pipe 61 is connected to the vacuum blood collection needle 63 .

Before blood collection, first unscrew the cap on the third end of the three-way cock valve 3, disinfect the third end of the three-way cock valve 3 with iodophor, and then connect the blood collection assembly 6 to the third end of the three-way cock valve 3. Three ends.

During blood collection, the first cut-off valve 64 and the second cut-off valve 65 are in an open state, and the syringe 62 is used to extract the flushing fluid in the pipeline so that the blood in the pipeline meets the blood collection requirements, and the first cut-off valve 64 is closed.

Connect the blood collection tube to the vacuum blood collection needle 63 to extract the blood sample, and close the second cut-off valve 65 after the extraction is completed.

After the blood collection is finished, the first cut-off valve 64 is opened, and the residual blood in the pipeline is sucked out by the syringe 62 .

Adjust the three-way stopcock 3, close the pipeline connected to the arterial indwelling needle 1, and use the continuous flushing system 4 to flush the pipeline.

Utilize the syringe 62 to suck out the flushing liquid of the flushing line.

Disconnect the first end of the three-way pipe 61 from the three-way stopcock 3, and discard the blood collection assembly 6.

When using the present application for blood collection, the entire blood collection operation is at the blood collection assembly 6, avoiding direct operation at the three-way cock valve 3, which can greatly avoid blood infection. Moreover, the blood collection assembly 6 is disposable, and the waste liquid of the flushing pipeline is collected through the syringe 62 in the blood collection assembly 6, which can further reduce the probability of blood infection. In addition, the blood collection tube is directly connected to the vacuum blood collection needle 63, which can avoid unqualified situations such as too much or too little blood in the collected blood sample. The application is practical and convenient, and can simplify the steps of blood collection.

Specifically, the volume of the syringe 62 may be 5mL-20mL, and the syringe 62 is used to collect the flushing fluid.

In the above embodiment, a needle seat 66 is provided at the connection between the third end of the three-way tube 61 and the vacuum blood collection needle 63 , and the medical personnel hold the needle seat 66 to facilitate the connection of the blood collection tube to the vacuum blood collection needle 63 . The vacuum blood collection needle 63 is also covered with a needle sheath 67, which can prevent stab wounds. For the convenience of the medical personnel's operation when the ambient light is dark, the side wings of the needle base 66 are provided with LED lighting lamps, and the LED lighting lamps are provided with switches, which are powered by button batteries. In order to ensure aseptic blood collection by the blood collection needle, a sterile transparent cover is arranged on the LED lighting lamp, and the LED lighting lamp is detachably connected to the needle holder 66 . The LED lighting lamp disassembled from the needle holder 66 can be recycled after being sterilized.

In addition, when the present application is used, the third end of the three-way pipe 61 can be connected with the three-way stopcock 3 as required, and the other two ends of the three-way stopcock 3 can be connected with the vacuum blood collection needle 63, so that double-needle blood collection can be realized, thereby Improve blood collection efficiency.

The structure of the three-way plug valve 3 described in the present application is the prior art, and will not be repeated here.

The above is only an illustrative specific implementation of the application. Without departing from the concept and principles of the application, any equivalent changes and modifications made by those skilled in the art shall fall within the protection scope of the application. .

Claims (10)

1. A vacuum blood collection device for invasive arterial blood pressure monitoring, characterized in that it comprises an arterial indwelling needle, a pressure connection tube, a three-way stopcock, a continuous flushing system and an electronic monitor; one end of the arterial indwelling needle passes through the A pressure connection pipe is connected to the first end of the three-way cock valve, and the second end of the three-way cock valve is connected to the continuous flushing system through the pressure connection pipe, and the continuous flushing system is connected to the electronic monitor, The electronic monitor is used to monitor the physical parameters of the patient; the third end of the three-way stopcock is connected with a blood collection assembly; the blood collection assembly includes a three-way pipe, a syringe and a vacuum blood collection needle, and the third end of the three-way pipe One end is connected with the third end of the three-way stopcock, the second end is connected with the syringe, and the third end is connected with the vacuum blood collection needle. 2 . The vacuum blood sampling device for invasive arterial blood pressure monitoring according to claim 1 , wherein the first end of the three-way tube is screwed or plugged in to the third end of the three-way stopcock. 3 . 3. The vacuum blood sampling device for invasive arterial blood pressure monitoring according to claim 2, characterized in that, when the first end of the three-way pipe is threadedly connected to the third end of the three-way stopcock, the three-way stopcock The first end of the through pipe is provided with an external thread, and the third end of the three-way cock valve is provided with an internal thread matching the external thread of the first end of the three-way pipe. 4. The vacuum blood sampling device for invasive arterial blood pressure monitoring according to claim 2, characterized in that, when the first end of the three-way pipe is plugged and connected to the third end of the three-way cock valve, the The inner diameter of the first end of the three-way pipe is equal to the outer diameter of the third end of the three-way plug valve. 5 . The vacuum blood sampling device for invasive arterial blood pressure monitoring according to claim 1 , 2 , 3 , or 4 , wherein the second end of the three-way tube is integrally formed with the syringe. 6. The vacuum blood sampling device for invasive arterial blood pressure monitoring according to claim 1 or 2 or 3 or 4, characterized in that, the second end of the three-way pipe is connected to the catheter with a first A cut-off valve, a second cut-off valve is arranged on the conduit where the third end of the three-way pipe is connected to the vacuum blood collection needle. 7. The vacuum blood sampling device for invasive arterial blood pressure monitoring according to claim 1 or 2 or 3 or 4, characterized in that the volume of the syringe is 5mL-20mL. 8. The vacuum blood collection device for invasive arterial blood pressure monitoring according to claim 1 or 2 or 3 or 4, wherein a needle is provided at the connection between the third end of the three-way pipe and the vacuum blood collection needle. seat. 9 . The vacuum blood sampling device for invasive arterial blood pressure monitoring according to claim 8 , wherein LED lighting lamps are arranged on the side wings of the needle holder. 10 . 10. The vacuum blood collection device for invasive arterial blood pressure monitoring according to claim 1, 2, 3 or 4, characterized in that, the vacuum blood collection needle is also covered with a needle sheath.