Multi-path infusion pressurizing bag for neurointervention operation

Abstract

The utility model provides a multi-path transfusion pressurizing bag for a nerve interventional operation, which is provided with an automatic inflating device, and each inflating branch of the automatic inflating device is connected with an air inlet port of one transfusion pressurizing bag through a three-way plug valve. The automatic inflation device is provided with a direct-current inflation pump, an air outlet of the direct-current inflation pump is connected with a main air path, the main air path is connected with a main path air pressure driving switch in parallel and further connected with a plurality of branch air paths in parallel, and each branch air path is connected with an electromagnetic valve in series and then connected with a branch air pressure driving switch in parallel to serve as an inflation branch to be output outwards. The automatic inflation device is further provided with a rechargeable battery, a power switch and a self-locking inflation button for power supply and control. The multi-path infusion pressurization bag can automatically complete simultaneous inflation pressurization and pressure maintaining of a plurality of infusion bags, so that the automation level of infusion pressurization operation is improved, and the requirements that multiple bags of heparin saline water are needed for pressurization and rapid tube washing and stable pressurization perfusion maintaining are well met in a nerve intervention operation.

Description

Technical Field

[0001] The utility model relates to an infusion pressure bag, in particular to a multi-channel infusion pressure bag for neurointerventional surgery, belonging to the technical field of medical auxiliary equipment. Background Art

[0002] During the process of using DSA (Digital Subtraction Angiography) for medical imaging diagnosis and treatment in neurointerventional surgery, in order to ensure that the contrast agent can stably and continuously flow into the patient's body through the femoral / radial artery approach during infusion, it is usually necessary to use an infusion pressure bag to apply pressure to the infusion bag to achieve pressurized perfusion. In neurointerventional treatment, thrombosis or embolism is a serious complication of the surgery, and pressurized perfusion between the guide wire and the catheter is an important link to prevent the formation of complications. To ensure the patency between the microcatheter and the microguide wire in the guiding catheter during the operation, prevent the formation of intracavitary thrombus and air embolism, a large amount of heparinized saline is required to flush the catheter and continuous liquid perfusion during the operation. Correctly using the arterial pressure infusion bag to keep the pressurized perfusion line unobstructed is the key to ensuring the success of the operation. Therefore, it is crucial to correctly use the arterial infusion pressure device during the operation, closely observe the pressure of the infusion pressure bag, and maintain the pressure. Once the pressure in the infusion pressure bag drops, it is necessary to replenish the pressure in a timely manner to keep the perfusion line unobstructed and avoid the formation of blood clots or thrombi caused by blood backflow in the catheter and catheter sheath, resulting in cerebral infarction.

[0003] During the neurointerventional surgery, patients generally need to use 2 - 5 bags of heparinized saline. To avoid repeatedly changing the liquid during the operation, save the operation time and reduce complications, multiple bags of heparinized saline need to be prepared simultaneously during the operation, pressurized with an infusion pressure bag and then used for pipeline flushing and perfusion. Each bag of heparinized saline is respectively connected to the same guiding tube through a three-way valve. It is necessary to ensure that there is heparinized saline in the pipeline of each path to prevent the formation of thrombus and the entry of gas into the body. When one bag of heparinized saline is used up, the corresponding three-way valve can be adjusted to quickly switch to the next bag to continue the liquid supply. Since the current conventional infusion pressure bags are mostly manually pressurized, it is necessary to repeatedly squeeze the airbag for inflation and pressurization. When using multiple infusion pressure bags to pressurize multiple infusion bags, it is necessary to operate each one separately, which is cumbersome, time-consuming and laborious. Moreover, when the infusion bag is infusing, the pressure of the infusion pressure bag will gradually decrease as the infusion bag shrinks, and it cannot be maintained within a stable pressure value range. During the operation, it is necessary to monitor the pressure value of the infusion pressure bag from time to time and manually replenish the pressure of the pressure bag with insufficient pressure. Therefore, the existing infusion pressure bags cannot well meet the requirements of neurointerventional surgery for simultaneously using multiple bags of heparinized saline for pressurized rapid catheter flushing and maintaining stable pressurized perfusion. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a multi-channel infusion pressure bag for neurointerventional surgery, which is provided with multiple infusion bags and can automatically complete simultaneous inflation and pressure maintenance of multiple infusion bags, and can well meet the requirements of neurointerventional surgery for rapid flushing of multiple bags of heparinized saline under pressure and maintaining stable pressure perfusion.

[0005] The specific technical solutions adopted by the present utility model are as follows:

[0006] A multi-channel infusion pressure bag for neurointerventional surgery is provided with an automatic inflation device having multiple inflation branches. Each inflation branch of the automatic inflation device is respectively connected to the air inlet port of an infusion pressure bag through a three-way stopcock valve.

[0007] The automatic inflation device is provided with a DC inflation pump. The air outlet of the DC inflation pump is connected to the main air path. A main path air pressure driving switch is connected in parallel on the main air path, and multiple branch air paths are also connected in parallel. Each branch air path is first connected in series with a solenoid valve and then connected in parallel with a branch path air pressure driving switch and then outputs outward as an inflation branch; both the main path air pressure driving switch and the branch path air pressure driving switch adopt normally closed diaphragm type adjustable air pressure switches, and the solenoid valve adopts a normally open two-position two-way solenoid valve.

[0008] The automatic inflation device is further provided with a rechargeable battery, a power switch, and a self-locking inflation button; the positive electrode of the rechargeable battery is provided with a circuit that is connected to one end of the normally closed contact of the main path air pressure driving switch after passing through the power switch. The other end of the normally closed contact of the main path air pressure driving switch is provided with a circuit that is connected to the positive terminal of the DC inflation pump after passing through the self-locking inflation button. The negative electrode of the rechargeable battery is provided with a circuit that is connected to the negative terminal of the DC inflation pump after passing through the power switch; one end of the coil of the solenoid valve on each branch air path is provided with a circuit that is connected to one end of the normally closed contact of the branch path air pressure driving switch on this branch air path. The other ends of the coils of the solenoid valves on each branch air path are connected in parallel and then connected to the negative terminal of the DC inflation pump. The other ends of the normally closed contacts of the branch path air pressure driving switches on each branch air path are connected in parallel and then connected to the positive terminal of the DC inflation pump.

[0009] The multi-channel infusion pressure bag of the present utility model adds an automatic inflation device to multiple infusion pressure bags. During use, it can automatically complete the simultaneous inflation, pressurization, and pressure maintenance of multiple infusion bags, thereby improving the automation level of the infusion pressurization operation, reducing the operation burden of medical staff, and improving work efficiency. Moreover, the pressure control of this multi-channel infusion pressure bag is precise. Medical staff can flexibly set pressure parameters for each infusion pressure bag according to different situations. When the pressure of the infusion pressure bag drops during the infusion process, it can automatically replenish pressure, ensuring the stability and continuity of the infusion process, reducing pressure instability and potential human errors caused by manual operation, and increasing the safety and reliability of the infusion process. Therefore, using this multi-channel infusion pressure bag can well meet the needs of neurointerventional surgery for rapid flushing of multiple bags of heparinized saline under pressure and maintaining stable pressurized perfusion simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is the composition schematic diagram of this multi-channel infusion pressure bag.

[0011] Figure 2 is the three-dimensional structure schematic diagram of the automatic inflation device.

[0012] Figure 3 is the three-dimensional structure schematic diagram of the upper cover part of the automatic inflation device (the connecting circuit is not shown).

[0013] Figure 4 is the three-dimensional structure schematic diagram of the lower cover part of the automatic inflation device (the connecting circuit is not shown).

[0014] Figure 5 is Figure 4 the top view of.

[0015] In the figure: 1 - DC inflation pump, 2 - solenoid valve, 3 - branch air pressure drive switch, 4 - three-way stopcock valve, 5 - infusion pressure bag, 6 - rechargeable battery, 7 - main road air pressure drive switch, 8 - power switch, 9 - self-locking inflation button, 10 - voltage display meter, 11 - charging module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following further describes the present utility model with reference to the accompanying drawings.

[0017] As Figures 1-5 shown, this multi-channel infusion pressure bag is provided with an automatic inflation device with multiple inflation branches. Each inflation branch of the automatic inflation device is respectively connected to the air inlet port of an infusion pressure bag 5 through a three-way stopcock valve 4.

[0018] The automatic inflation device is provided with a DC inflation pump 1. The air outlet of the DC inflation pump 1 is connected to the main air path. A main path air pressure driving switch 7 is connected in parallel on the main air path, and multiple branch air paths are also connected in parallel. Each branch air path first connects a solenoid valve 2 in series and then a branch path air pressure driving switch 3 in parallel and then outputs as an inflation branch; both the main path air pressure driving switch 7 and the branch path air pressure driving switch 3 adopt normally closed diaphragm type adjustable air pressure switches, and the solenoid valve 2 adopts a normally open two-position two-way solenoid valve.

[0019] The automatic inflation device is further provided with a rechargeable battery 6, a power switch 8, and a self-locking inflation button 9; the positive pole of the rechargeable battery 6 is provided with a circuit which is connected to one end of the normally closed contact of the main path air pressure driving switch 7 after passing through the power switch 8 in series. The other end of the normally closed contact of the main path air pressure driving switch 7 is provided with a circuit which is connected to the positive pole wiring terminal of the DC inflation pump 1 after passing through the self-locking inflation button 9 in series. The negative pole of the rechargeable battery 6 is provided with a circuit which is connected to the negative pole wiring terminal of the DC inflation pump 1 after passing through the power switch 8 in series; one end of the coil of the solenoid valve 2 on each branch air path is provided with a circuit which is connected to one end of the normally closed contact of the branch path air pressure driving switch 3 on this branch air path. The other ends of the coils of the solenoid valves 2 on each branch air path are connected in parallel and then connected to the negative pole wiring terminal of the DC inflation pump 1. The other ends of the normally closed contacts of the branch path air pressure driving switches 3 on each branch air path are connected in parallel and then connected to the positive pole wiring terminal of the DC inflation pump 1.

[0020] Preferably, 4 branch air paths are connected in parallel to the main air path of the automatic inflation device, and thus 4 inflation branches are formed to output. The 4 inflation branches are respectively connected to the air inlet ports of 4 infusion pressure bags 5 through three-way stopcocks 4, and can provide pressurization and pressure maintenance for 4 infusion bags simultaneously. This quantity can meet the needs of most patients.

[0021] Further, a voltage display meter 10 is also connected in parallel to the positive and negative circuits of the rechargeable battery 6 after passing through the power switch 8 to display the real-time power supply voltage of the rechargeable battery 6, so as to be able to charge it in time when it is observed that the power supply voltage of the rechargeable battery 6 is insufficient.

[0022] Further, the automatic inflation device is also provided with a charging module 11 which is matched with the rechargeable battery 6, and the charging module 11 is provided with an external power supply socket.

[0023] Further, the automatic inflation device is provided with a closed outer shell composed of an upper box body and a lower box body buckled up and down. Among them, the self-locking inflation button 9 and the voltage display meter 10 are embedded and installed on the top surface of the upper box body. The DC inflation pump 1, the main air pressure drive switch 7, the solenoid valve 2, the branch air pressure drive switch 3, the rechargeable battery 6, the power switch 8, and the charging module 11 are all fixedly installed in the lower box body. The button of the power switch 8 and the external power socket of the charging module 11 are exposed outward from the side surface of the lower box body. Except that each inflation branch extends outward through the opening on the side surface of the lower box body, all the air circuits and electric circuits of the automatic inflation device are enclosed in the outer shell.

[0024] The working process of this multi-channel infusion pressure bag is as follows:

[0025] (1). During the neurointerventional surgery of the patient, put the multiple heparin saline infusion bags that need to be used into each infusion pressure bag 5 of this multi-channel infusion pressure bag respectively. Rotate the three-way stopcock 4 of the inflation branch without an infusion bag to the state where the inflation branch is closed, and rotate the three-way stopcock 4 of the inflation branch with an infusion bag to the state where the inflation branch is independently conducted with the infusion pressure bag 5.

[0026] (2). Set the pressure values of each branch air pressure drive switch 3 and the main air pressure drive switch 7 so that the pressure values of each branch air pressure drive switch 3 can meet the requirements of squeezing the infusion bag for pressure perfusion, and the pressure setting value of the main air pressure drive switch 7 is slightly greater than the pressure setting values of each branch air pressure drive switch 3.

[0027] (3). Turn on the power switch 8, and the voltage display meter 10 displays the current power supply voltage. Press the self-locking inflation button 9 to make it connected and self-locked to hold. The DC inflation pump 1 gets powered and starts to work. At the same time, the solenoid valves 2 of each inflation branch get powered to conduct the air circuit. The DC inflation pump 1 inflates the infusion pressure bag 5 with an infusion bag through the corresponding inflation branch. When the inflation pressure of the infusion pressure bag 5 reaches the pressure setting value of the branch air pressure drive switch 3, the normally closed contact of the branch air pressure drive switch 3 disconnects, and the solenoid valve 2 coil corresponding to this inflation branch loses power and disconnects the air circuit. Thus, the inflation pressurization and pressure maintenance of the infusion pressure bag 5 are realized. When the pressure of the infusion pressure bag 5 drops to a certain extent, the normally closed contact of the branch air pressure drive switch 3 will automatically connect, and the corresponding solenoid valve 2 coil gets powered to conduct the air circuit to automatically replenish the pressure of the infusion pressure bag 5, so that the pressure of the infusion pressure bag 5 is always maintained within a stable range; after the solenoid valves 2 of each inflation branch all disconnect the air circuit, when the pressure of the main air circuit reaches the pressure setting value of the main air pressure drive switch 7, the normally closed contact of the main air pressure drive switch 7 disconnects, and the DC inflation pump 1 loses power and stops working. When the pressure of the main air circuit drops to a certain extent, the normally closed contact of the main air pressure drive switch 7 will automatically connect to make the DC inflation pump 1 get powered and resume working, and the pressure of the main air circuit is maintained.

[0028] (4)After the infusion is completed, press the self-locking inflation button 9 again to disconnect and self-lock it. The DC inflation pump 1 stops working. Turn off the power switch 8, and rotate the three-way stopcock valve 4 of each inflation branch to the state of external deflation to relieve the pressure of each inflation branch and the infusion pressure bag 5.

[0029] The above examples are only typical embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-channel infusion pressurized bag for neurointerventional surgery, characterized by: The multi-channel infusion pressurized bag is provided with an automatic inflation device having a plurality of inflation branches, and each inflation branch of the automatic inflation device is connected to an air inlet port of an infusion pressurized bag (5) via a three-way stopcock (4); The automatic inflation device is provided with a direct current inflation pump (1), the outlet of the direct current inflation pump (1) is connected to a main gas circuit, a main gas circuit air pressure drive switch (7) is connected in parallel to the main gas circuit, and a plurality of branch gas circuits are also connected in parallel, each branch gas circuit is first connected in series with a solenoid valve (2) and then connected in parallel with a branch gas pressure drive switch (3) to output to the outside as an inflation branch circuit; the main gas pressure drive switch (7) and the branch gas pressure drive switch (3) are both normally closed diaphragm-type adjustable gas pressure switches, and the solenoid valve (2) is a normally open two-position two-way solenoid valve; The automatic inflation device is further provided with a rechargeable battery (6), a power switch (8), and a self-locking inflation button (9); the positive electrode of the rechargeable battery (6) is provided with a circuit connected in series with the power switch (8) and then connected to one end of the normally closed contact of the main air pressure drive switch (7); the other end of the normally closed contact of the main air pressure drive switch (7) is provided with a circuit connected in series with the self-locking inflation button (9) and then connected to the positive terminal of the DC inflation pump (1); the negative electrode of the rechargeable battery (6) is provided with a circuit connected in series with the power switch (8) and then connected to the positive terminal of the DC inflation pump (1); connected to the negative terminal of the DC air pump (1); one end of the coil of the solenoid valve (2) on each branch air line is provided with a circuit connected to one end of the normally closed contact of the branch air pressure drive switch (3) on the branch air line; the other end of the coil of the solenoid valve (2) on each branch air line is provided with a circuit connected in parallel and then connected to the negative terminal of the DC air pump (1); the other end of the normally closed contact of the branch air pressure drive switch (3) on each branch air line is provided with a circuit connected in parallel and then connected to the positive terminal of the DC air pump (1).

2. The multi-channel infusion pressurized bag for neurointerventional surgery according to claim 1 is characterized in that: The automatic inflation device is also connected in parallel with a voltage display meter (10) after the positive and negative pole circuits of the rechargeable battery (6) pass through the power switch (8).

3. The multi-channel infusion pressurized bag for neurointerventional surgery according to claim 2 is characterized in that: The automatic inflation device is also provided with a charging module (11) matching the rechargeable battery (6), and the charging module (11) is provided with an external power supply socket.

4. The multi-channel infusion pressurized bag for neurointerventional surgery according to claim 3 is characterized by: The automatic inflation device is provided with a closed shell composed of an upper box body and a lower box body which are buckled together, wherein a self-locking inflation button (9) and a voltage display meter (10) are embedded on the top surface of the upper box body, and a DC inflation pump (1), a main circuit air pressure drive switch (7), a solenoid valve (2), a branch circuit air pressure drive switch (3), a rechargeable battery (6), a power switch (8), and a charging module (11) are all fixedly installed in the lower box body, and a button of the power switch (8) and an external power socket of the charging module (11) are exposed outwardly from the side of the lower box body; except for each inflation branch extending outwardly through an opening on the side of the lower box body, all air circuits and circuits of the automatic inflation device are enclosed in the shell.

5. The multi-channel infusion pressurized bag for neurointerventional surgery according to claim 1 is characterized by: The main air circuit of the automatic inflation device is connected in parallel with four branch air circuits, thereby forming four inflation branches for external output, and the four inflation branches are respectively connected to the air inlet ports of four infusion pressurized bags (5) through three-way stopcocks (4).

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