CN217525132U - Closed blood sampling device for arteriovenous indwelling tube - Google Patents

Abstract

The utility model relates to a closed blood collection device for arterial and venous intubation, which comprises a three-way valve, a syringe and a blood collection tube. Two syringe ports are provided, including a first port and a second port. One end of the valve of the three-way valve is connected to one end of the valve of the three-way valve, the other end of the valve of the three-way valve is connected to the end of the arteriovenous catheter, and the third end of the valve of the three-way valve is connected to the invasive blood pressure monitoring device; the second interface is connected to the blood collection tube through the second blood collection branch The first blood collection branch and the second blood collection branch are provided with liquid stop valves; the invasive blood pressure monitoring device includes a pressure sensor and a flushing device, and the interface cable end of the pressure sensor is connected to the ECG monitor , the flushing device is used for flushing the first blood sampling branch. The arterial and venous cannulation airtight blood collection device provided in the above technical solution can effectively solve the problems of the existing blood collection device requiring repeated puncturing, increasing the patient's pain and infection probability, large amount of discarded blood, and difficult flushing of blood clots.

Description

An arteriovenous cannulation sealed blood collection device

technical field

The utility model relates to the technical field of medical aids, in particular to an arterial and venous tube-tight sealed blood collection device.

Background technique

Arterial and venous blood collection is a process in which medical personnel collect blood samples through veins and arteries. At present, the commonly used blood collection device in the hospital is a disposable arterial blood sampler, which is mainly used for the collection of arterial blood gas. Its use method is to push the needle plug to the bottom and then pull it to the preset position. mL, then remove the needle guard cap and locate the artery. The blood collection device is generally inserted at an angle of 45 to 90 degrees to the skin. When the blood collection needle enters the artery, the blood naturally flows into the arterial blood collection device, and the air is quickly discharged through the hole stone. When the blood level reaches the preset position, the pore stone is closed when wet. Pull out the arterial blood sampler, press the puncture site with sterile gauze for 5-10 minutes, and insert the needle of the arterial blood sampler vertically into the rubber needle stopper. Invert and mix the blood 5 times, rub the sample for 5 seconds to ensure the complete effect of the anticoagulant, and send it for analysis immediately.

However, severe patients need to repeatedly collect blood, which will cause repeated puncture of the patient, increase the patient's pain, and increase the probability of infection. Secondly, the current intensive care unit often uses invasive devices to collect blood for blood gas analysis of patients with invasive blood pressure monitoring, and completes the process of blood collection, blood collection, blood collection and flushing. Therefore, there is an urgent need to design a new technical solution to comprehensively solve the problems existing in the prior art.

Utility model content

The purpose of the utility model is to provide an arteriovenous tube-tight blood collection device, which can effectively solve the problems of the existing blood collection device requiring repeated puncturing, increasing the patient's pain and infection probability, large amount of discarded blood, and difficult flushing of blood clots.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A closed blood collection device for arterial and venous catheterization, including a three-way valve, a syringe and a blood collection tube, the syringe interface is provided with two, including a first interface and a second interface, the first interface is connected to the first blood collection branch through a first blood collection branch. One end of the valve of the three-way valve is connected to one end of the valve of the three-way valve, the other end of the valve of the three-way valve is connected to the end of the arteriovenous catheter, and the third end of the valve of the three-way valve is connected to the invasive blood pressure monitoring device; the second interface is connected to the second blood collection branch through the second blood collection branch The blood collection tubes are connected; the first blood collection branch and the second blood collection branch are provided with liquid stop valves; the invasive blood pressure monitoring device includes a pressure sensor and a flushing device, and the interface cable end of the pressure sensor is connected to the ECG monitoring device. connected to the instrument, and the flushing device is used for flushing the first blood collection branch;

After the arterial and venous catheter ends are opened, the hemostasis valve of the first blood collection branch is opened, and after the blood enters the syringe from the first blood collection branch for about 2ml, the hemostasis valve of the second blood collection branch is opened, and the blood is drawn from the second blood collection branch. Enter the lancet.

Further, the end of the second blood collection branch is provided with a heparin cap, and the blood collection tube is connected to the second blood collection branch through the heparin cap.

Further, the heparin cap is detachably connected to the end of the second blood collection branch through a threaded interface.

Further, a closed sterile plastic sleeve is provided outside the syringe.

Further, the liquid stop valve is an infusion drip rate controller or a Robert clip.

The arterial and venous cannulation airtight blood collection device provided in the above technical solution is provided with a three-way valve, a syringe and a blood collection tube. Valve 2 is connected to the arterial and venous catheterization end, valve 3 of the three-way valve is connected to an invasive blood pressure monitoring device, and the second interface of the syringe is connected to the blood collection device through the second blood collection branch; after the arterial and venous catheterization end is opened, the first The stop valve of the blood collection branch, at this time, the blood enters the syringe from the first blood collection branch; then open the stop valve of the second blood collection branch, and the blood enters the blood collection device from the second blood collection branch. The whole process is sealed and sterile. At the same time, by setting up an invasive blood pressure monitoring device, on the one hand, the blood pressure of the patient can be monitored in real time, and on the other hand, the first blood collection branch can be flushed to avoid the generation of abandoned blood and blood in the blood collection circuit. Clots, reduce blood loss in patients and avoid the formation of deep vein thrombosis.

In addition, the utility model adopts a syringe as the blood storage device in the middle section. After the blood collection is completed, the syringe can collect the uncontaminated blood, and after the blood collection, it can be returned to the patient's body to avoid blood waste.

Description of drawings

FIG. 1 is a schematic structural diagram of the closed blood collection device for arteriovenous catheterization according to the present invention.

In the figure: 1. Syringe; 11. First interface; 12. Second interface; 2. Airtight sterile plastic sleeve; 3. First blood collection branch; 4. Second blood collection branch; 41. Heparin cap; 5 .First Robert clip; 6. Second Robert clip; 7. Three-way valve; 71. One end of valve; 72. Two ends of valve; 73. Three ends of valve; device; 91. pressure sensor; 92. ECG monitor; 93. flushing device; 10. blood collection tube.

Detailed ways

In order to make the purpose and advantages of the present utility model more clear, the present utility model will be described in detail below with reference to the embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the protection scope of the specific claims of the present invention.

The technical solution adopted by the present utility model is shown in Figure 1, an arterial and venous catheterization sealed blood collection device, including a three-way valve 7, a syringe 1 and a blood collection tube 10, the syringe 1 is provided with two interfaces, including a first interface 11 and The second interface 12, the first interface 11 is connected to the valve end 71 of the three-way valve 7 through the first blood collection branch 3, the valve end 72 of the three-way valve 7 is connected to the arteriovenous catheter end 8, and the three-way valve 7 The three ends 73 of the valve are connected to the invasive blood pressure monitoring device 9; the second interface 12 is connected to the blood collection tube 10 through the second blood collection branch 4; wherein, the invasive blood pressure monitoring device 9 includes a pressure sensor 91 and a flushing device 93, and the pressure sensor 91 The interface cable end is connected to the ECG monitor 92 , the flushing device 93 includes normal saline and a pressurized bag for flushing the first blood collection branch 3 ; the second interface 12 is connected to the blood collection tube 10 through the second blood collection branch 4 .

Specifically, the end of the second blood collection branch 4 is provided with a heparin cap 41 , the heparin cap 41 is detachably connected to the end of the second blood collection branch 4 through a threaded interface, and the blood collection tube 10 is connected to the second blood collection branch through the heparin cap 41 The road 4 is connected; the heparin cap 41 can be replaced, the use is clean and hygienic, and there is no pollution.

In addition, both the first blood collection branch 3 and the second blood collection branch 4 in this embodiment are provided with liquid stop valves, and in this embodiment, Robert clamps are used as the liquid stop valves (you can also select the infusion drip rate controller according to the selection). ); in addition, in order to prevent contamination, a closed sterile plastic sleeve 2 is provided outside the syringe 1 to ensure that the entire blood collection process is in a sealed and sterile environment, which can effectively reduce infection.

When using the closed blood collection device for arterial and venous catheterization of this embodiment, firstly adjust the three-way valve 7 to close the end 9 of the invasive blood pressure monitoring device, and after the end 8 of the arteriovenous catheterization catheter is opened, the first Robert clip 5 of the first blood collection branch 3 is closed. After opening, the blood enters the syringe 1 from the arterial and venous catheter end for about 2 mL; the second Robert clip 6 of the second blood collection branch 4 is opened, and the blood enters the blood collection device from the second blood collection branch 4 . When the pipeline needs to be flushed, adjust the three-way valve 7 to close the 8 ends of the arterial and venous catheters, and the flushing device flushes the first blood collection branch 3 to avoid pipeline blockage and blood clot formation, and reduce infection and deep vein thrombosis. happened.

The embodiments of the present utility model are described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments. Under the premise of the principle of the present invention, several equivalent changes and substitutions can also be made, and these equivalent changes and substitutions should also be regarded as belonging to the protection scope of the present invention.

Claims (5)

1. an arterial and venous cannulation airtight blood collection device, characterized in that: comprising a three-way valve, a syringe and a blood collection tube, and the syringe interface is provided with two, including a first interface and a second interface, and the first interface passes through The first blood collection branch is connected to one end of the valve of the three-way valve, the second end of the valve of the three-way valve is connected to the end of the arteriovenous catheter, and the third end of the valve of the three-way valve is connected to the invasive blood pressure monitoring device; the second interface passes through The second blood collection branch is connected to the blood collection tube; both the first blood collection branch and the second blood collection branch are provided with a stop valve; the invasive blood pressure monitoring device includes a pressure sensor and a flushing device, and the interface of the pressure sensor The cable end is connected with the ECG monitor, and the flushing device is used for flushing the first blood collection branch; After the arterial and venous catheter ends are opened, the hemostasis valve of the first blood collection branch is opened, and after the blood enters the preset volume of the syringe from the first blood collection branch, the hemostasis valve of the second blood collection branch is opened, and the blood is drawn from the second blood collection branch. Road into the lancing device. 2 . The closed blood collection device for arteriovenous catheterization according to claim 1 , wherein the end of the second blood collection branch is provided with a heparin cap, and the blood collection tube is connected to the second blood collection branch through the heparin cap. . 3 . The closed blood collection device for arteriovenous catheterization according to claim 2 , wherein the heparin cap is detachably connected to the end of the second blood collection branch through a threaded interface. 4 . 4 . The closed blood collection device for arteriovenous catheterization according to claim 1 , wherein a closed sterile plastic sleeve is provided outside the syringe. 5 . 5 . The closed blood collection device for arteriovenous catheterization according to claim 1 , wherein the stop valve is an infusion drip rate controller or a Robert clip. 6 .

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