CN215690569U - Three-way device for rapid pressurization of blood transfusion and fluid infusion - Google Patents

Abstract

The utility model discloses a three-way device for rapid pressurized blood transfusion, comprising a liquid inlet pipe, a pressurized pipe, a communication pipe and a liquid outlet pipe. The liquid inlet pipe and the liquid outlet pipe are arranged at both ends of the communication pipe and pass through the The self-sealing flow valve is connected with the communication pipe, the pressure pipe is arranged on the communication pipe and communicated with the communication pipe, and a syringe piston is arranged in the pressure pipe. The self-sealing flow valve performs directional blocking of the communicating pipe, and has the effect of sealing the flow to effectively ensure the blood transfusion and infusion pressure during the pressurized liquid injection process, and has the characteristics of simple structure, convenient use and strong practicability.

Description

Three-way device for rapid pressurization of blood transfusion and fluid infusion

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a three-way device for rapid pressurization of blood transfusion and fluid infusion.

Background

With the development of medical technology, the number of patients with complicated operations and trauma is increasing, and the probability of emergency pressurized blood transfusion and infusion rescue is increasing when major bleeding occurs before or during the operation. When a patient suffers from heavy bleeding, blood products or liquid can be effectively supplemented in time in a short time, shock can be corrected quickly, and adverse reactions such as metabolic acidosis, insufficient tissue perfusion and the like caused by long-time hypotension can be avoided. The blood transfusion in the operation can be timely and quickly carried out to correct the massive hemorrhage caused by the operation, which is beneficial to quickly correcting the abnormal blood coagulation function, maintaining the internal environment stability and providing guarantee for the smooth operation.

At present, there are three clinical ways of pressure blood transfusion and infusion:

(1) the pressure blood transfusion is carried out by using special instruments, such as a high-flow warm fluid device, and the device has the advantages of constant transfusion speed, labor saving and capability of heating a fluid passage; the defects that the machine and the consumables are expensive, only part of hospitals are provided with limited quantity, and the medical cost is obviously increased;

(2) the blood bag or the fluid bag is squeezed by hand or other objects to accelerate the speed of blood transfusion and fluid infusion. The disadvantages are that the infusion speed can not be guaranteed, the time is slow, and the labor is consumed;

(3) the most common way of pressure blood transfusion and infusion in clinical practice at present is to connect a plurality of medical tee joints on a liquid passage, connect an injector (usually using 20 ml) with the medical tee joints, twist the tee joints, manually and quickly suck blood products in a blood bag into the 20ml injector, then rotate the tee joints, and quickly inject the blood products in the injector to a patient end; then the tee joint is rotated repeatedly to suck the blood product into the injector, and then the tee joint is rotated to inject the blood product into the patient end quickly; repeating the steps repeatedly until the blood transfusion and the fluid infusion do not need to be pressurized; the advantages are that the injection speed is ensured, and the disadvantages are that: after the medical tee joint rotates repeatedly for a plurality of times, the medical tee joint can be blocked by solid components in blood products, so that the rotation is difficult, the pressure is increased when the injector injects the blood, even the blood splashes in the injection process, the blood pollution probability of medical staff is increased, and the risk of the venous access infection of a patient is greatly increased; and secondly, the medical staff needs to repeatedly turn the tee joint during operation, and the time, the labor and the efficiency are low.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide the quick pressurization blood transfusion and transfusion three-way device, the self-flow valve is arranged among the liquid inlet pipe, the liquid outlet pipe and the communicating pipe, so that the communicating pipe can be directionally plugged in the processes of liquid suction and pressurization liquid injection by using the syringe piston, the blood transfusion and transfusion pressure in the pressurization liquid injection process is effectively ensured, and the three-way device has the characteristics of high sensing and control coefficient, simple structure, convenience in use and strong practicability.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a tee bend device of quick pressurization blood transfusion and infusion, includes feed liquor pipe, forcing pipe, communicating pipe and drain pipe, feed liquor pipe and drain pipe set up at the both ends of communicating pipe, and are connected with communicating pipe through proclaiming oneself the valve, the forcing pipe sets up on communicating pipe, communicates with communicating pipe, and is provided with the syringe piston in the forcing pipe.

Preferably, the self-sealing valve comprises a shell, a piston body and a plurality of limiting columns, wherein the piston body and the limiting columns are arranged in a cavity in the shell, the piston body is movably arranged in the cavity of the valve body of the self-sealing valve, the limiting columns are uniformly arranged on the inner wall of the shell at the bottom of the cavity of the valve body, and a diversion trench is arranged between every two adjacent limiting columns.

Preferably, the piston body is of a conical structure and is matched with the limiting column for use.

Preferably, the liquid outlet pipe is also provided with an exhaust tee.

The utility model has the beneficial effects that: the utility model discloses a rapid pressurization three-way device for blood transfusion and fluid infusion, which is improved in that:

the utility model designs a three-way device for rapid pressurization blood transfusion and fluid infusion, which comprises a liquid inlet pipe, a pressurization pipe, a communicating pipe and a liquid outlet pipe, wherein the liquid inlet pipe and the liquid outlet pipe are arranged at two ends of the communicating pipe and are connected with the communicating pipe through a self-sealing valve.

Drawings

Fig. 1 is a schematic structural diagram of the rapid pressurization blood transfusion and infusion three-way device of the utility model.

Fig. 2 is a schematic structural diagram of the rapid pressurization blood transfusion and infusion three-way device in the process of imbibition.

Fig. 3 is a schematic structural diagram of the rapid pressurization blood transfusion and infusion three-way device in the process of pressurization liquid injection.

Figure 4 is a cross-sectional view of the self-sealing valve of the present invention.

FIG. 5 is a cross-sectional view from the bottom of the valve of the present invention.

Fig. 6 is a schematic view of a piston body according to the present invention.

Wherein: 1. the liquid injection valve comprises a liquid inlet pipe, 2 parts of a piston body, 3 parts of a limiting column, 4 parts of a pressurizing pipe, 5 parts of an injector piston, 6 parts of a communicating pipe, 7 parts of a liquid outlet pipe, 8 parts of a self-sealing valve, 9 parts of a flow guide groove, 10 parts of a shell, 11 parts of a cavity and 12 parts of an exhaust tee joint.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following further describes the technical solution of the present invention with reference to the drawings and the embodiments.

Referring to the attached drawings 1-6, the three-way device for rapid pressurization blood transfusion and infusion comprises a liquid inlet pipe 1, a pressurization pipe 4, a communicating pipe 6 and a liquid outlet pipe 7, wherein the liquid inlet pipe 1 and the liquid outlet pipe 7 are arranged at two ends of the communicating pipe 6 and are connected with the communicating pipe 6 through a self-sealing valve 8, the pressurization pipe 4 is arranged on the communicating pipe 6 and is communicated with the communicating pipe 6, an injector piston 5 is arranged in the pressurization pipe 4, the injector piston 5 is utilized for pressurization, when the three-way device is used, the liquid inlet pipe 1 is a liquid/blood end and is connected with a blood bag or an injection storage bag, and the liquid outlet pipe 7 is a patient end and is connected with an injection needle or an injection catheter.

Preferably, in order to plug any one end of the communicating pipe 6 in the process of liquid absorption and pressurized liquid injection of the injector piston 5, the self-sealing valve 8 comprises a shell 10, a piston body 2 and a plurality of limiting columns 3 arranged in a cavity 11 inside the shell 10, the piston body 2 is movably arranged in the cavity 11 of the valve body of the self-sealing valve 8 to serve as a plug body, the communicating pipe 6 or the liquid outlet pipe 7 in the corresponding position is automatically plugged in the using process, the limiting columns 3 are uniformly arranged on the inner wall of the shell at the bottom of the cavity 11 of the valve body (the periphery of the joint of the communicating pipe 6 or the liquid outlet pipe 7), a flow guide groove 9 is arranged between two adjacent limiting columns 3, and flow guide is performed by using the flow guide groove 9 in the using process.

Preferably, the piston body 2 is a conical structure, and when the piston body is used, the tail part of the piston body is matched with the limiting column 3, and the limiting column 3 is utilized to limit the piston body 2, so that blood or liquid can pass through the guide groove 9.

Preferably, in order to discharge the gas in the three-way device during the first use, an exhaust three-way 12 is further arranged on the liquid outlet pipe 7.

The use principle and the use process of the three-way device for rapid pressurization blood transfusion and fluid infusion comprise the following steps: firstly, connecting a liquid inlet pipe 1 and a liquid outlet pipe 7 at two ends of the three-way device with corresponding pipes, and installing the three-way device in a transfusion passage of hemorrhagic shock or dehydration;

secondly, opening the exhaust tee joint 12, firstly exhausting the gas in the device, and closing the exhaust tee joint of the exhaust pipe after exhausting;

thirdly, carrying out liquid suction operation, pulling the injector piston 5 backwards along the pressurizing pipe 4, enabling the piston body 2 of the self-sealing valve 8 positioned at one end of the liquid outlet pipe 7 to move downwards due to the reduction of the air pressure in the communicating pipe 6, enabling the tip part of the piston body to enter the communicating pipe 6, and plugging the self-sealing valve 8 positioned at one end of the liquid outlet pipe 7 to prevent the generation of reverse flow; meanwhile, as the air pressure in the communicating pipe 6 is reduced, the piston body 2 of the self-sealing valve 8 positioned at one end of the liquid inlet pipe 1 moves upwards and is extruded on the limiting column 3, and the liquid or blood passing through the liquid inlet pipe 1 moves upwards through the diversion trench 9 and enters the communicating pipe 6 and the pressurizing pipe 4;

finally, liquid is injected by pressurization, after the injector piston 5 moves to the first positioning, the injector piston 5 is pushed in the direction again, so that the injector piston 5 moves leftwards, the liquid or the blood pressure in the pressurization pipe 4 moves towards the direction of the communicating pipe 6, so that the liquid pressure in the communicating pipe 6 is increased, the piston body 2 of the self-sealing valve 8 positioned at one end of the liquid inlet pipe 1 moves downwards, the tip part of the piston body 2 enters the liquid inlet pipe 1, the self-sealing valve 8 positioned at one end of the liquid inlet pipe is blocked, the generation of reverse flow is prevented, meanwhile, the piston body 2 of the self-sealing valve 8 positioned at one end of the liquid outlet pipe 7 moves upwards and is extruded on the limiting column 3, the liquid or the blood in the communicating pipe 6 and the pressurization pipe 4 moves upwards through the diversion groove 9, enters the liquid outlet pipe 7 and is injected by high pressure, the steps are repeated, and the pressurization of the liquid or the blood is completed in the blood transfusion process, meets the clinical use requirements.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (4)

1. a three-way device for rapid pressurized blood transfusion, characterized in that: comprising a liquid inlet pipe (1), a pressurized pipe (4), a communication pipe (6) and a liquid outlet pipe (7), the liquid inlet pipe (7) The pipe (1) and the liquid outlet pipe (7) are arranged at both ends of the communication pipe (6), and are connected with the communication pipe (6) through a self-sealing flow valve (8), and the pressurized pipe (4) is arranged in the communication pipe (6). On (6), it is communicated with the communication pipe (6), and a syringe piston (5) is arranged in the pressurizing pipe (4). 2. A three-way device for rapid pressurization of blood transfusion according to claim 1, characterized in that: the self-sealing flow valve (8) comprises a casing (10), which is arranged in the hollow inside the casing (10). A piston body (2) and several limit posts (3) in the cavity (11), the piston body (2) is movably arranged in the valve body cavity (11) of the self-sealing flow valve (8), the limit The columns (3) are evenly arranged on the inner wall of the casing at the bottom of the valve body cavity (11), and a diversion groove (9) is arranged between two adjacent limiting columns (3). 3 . The three-way device for rapid pressurization of blood transfusion according to claim 2 , wherein the piston body ( 2 ) is of a conical structure, and is used in conjunction with the limit post ( 3 ). 4 . 4. A three-way device for rapid pressurization of blood transfusion according to claim 1, characterized in that: the liquid outlet pipe (7) is further provided with an exhaust three-way (12).

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