On-off structure for connecting air path between breathing machine and trachea cannula

Abstract

The utility model belongs to the related technical field of medical corollary equipment, and particularly relates to an on-off structure of a connecting air path of a breathing machine and a trachea cannula, which comprises the breathing machine, the trachea cannula and a two-position two-way electromagnetic valve, and an air inlet of the two-position two-way electromagnetic valve is connected with an air outlet of the breathing machine. An air outlet of the two-position two-way electromagnetic valve is connected with a connector of the trachea cannula, and a power supply circuit of the two-position two-way electromagnetic valve is provided with a power supply voltage VCC and a push-press switch which is used for controlling the conduction of the power supply circuit and is driven by a foot. According to the utility model, on the premise of avoiding the risk of operation infection to the greatest extent, the rapid on-off switching of the connecting air path of the breathing machine and the trachea cannula in an operating room is realized, the risk of operation infection can be reduced, and the operation time can be shortened.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of medical supporting equipment, in particular to an on-off structure for connecting an air path between a ventilator and an endotracheal tube. Background Art

[0002] During digital subtraction angiography (DSA) procedures, some patients require ventilator-assisted ventilation due to general anesthesia. To avoid respiratory artifacts and maintain DSA angiography image quality, anesthesiologists are routinely required to manually disconnect and connect the ventilator and endotracheal tube during operation to ensure the patient achieves a breath-holding state during the procedure. However, this approach presents several challenges:

[0003] First, the process of manually controlling the ventilator undoubtedly increases the risk of infection, because in the surgical environment, any unnecessary operation may lead to the spread of bacteria, especially under sterile conditions. Anesthesiologists frequently touch the ventilator adjustment device, which can easily introduce exogenous microorganisms, thereby increasing the patient's chance of infection.

[0004] Secondly, traditional operating methods require frequent entry and exit from the operating room, resulting in wasted surgical time. During surgery, the anesthesiologist may need to frequently adjust the connection and disconnection between the ventilator and the endotracheal tube. Especially when imaging is required, the surgical team must wait for the ventilator to be adjusted, which undoubtedly prolongs the operation and affects patient safety and surgical efficiency.

[0005] Therefore, it is particularly important to quickly connect and disconnect the ventilator and endotracheal tube in the operating room to reduce the risk of surgical infection and shorten the operation time. Summary of the Invention

[0006] The purpose of the utility model is to provide an on-off structure for connecting the air path between a ventilator and an endotracheal tube, which solves the problem that the connection and disconnection between the ventilator and the endotracheal tube need to be achieved by manual switching by humans leaving the operating room, resulting in a waste of operation time.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model is an on-off structure for connecting an air circuit between a ventilator and an endotracheal tube, comprising a ventilator, an endotracheal tube and a two-position two-way solenoid valve, wherein the air inlet of the two-position two-way solenoid valve is connected to the air outlet of the ventilator, and the air outlet of the two-position two-way solenoid valve is connected to the joint of the endotracheal tube. The power supply circuit of the two-position two-way solenoid valve is provided with a power supply voltage VCC and a push-button switch that controls whether the power supply circuit is turned on or off and is driven by the foot.

[0009] Preferably, the electrical connection structure between the push-type switch and the power supply circuit of the two-position two-way solenoid valve is: the power supply voltage VCC and the push-type switch are connected in series through wires and then connected between the two coil power supply ends of the two-position two-way solenoid valve.

[0010] Preferably, in order to achieve wireless connection, the electrical connection structure of the push-type switch and the power supply circuit of the two-position two-way solenoid valve is as follows: the power supply circuit also includes a single-chip microcomputer 1, a single-chip microcomputer 2, a first resistor R1, a second resistor R2, an NPN transistor Q1 and a relay 1, and the second resistor R2 and the push-type switch are connected in series between an I / O port of the single-chip microcomputer 1 and the power supply voltage VCC, the wireless communication end of the single-chip microcomputer 1 is connected to a wireless communication transmitting circuit, the wireless communication end of the single-chip microcomputer 2 is connected to a wireless communication receiving circuit, and the wireless The communication receiving circuit is wirelessly connected to the wireless communication transmitting circuit, an I / O port of the single-chip computer 2 is connected to the base of the NPN transistor Q1, the collector of the NPN transistor Q1 is connected to one end of the coil of the relay 1, the other end of the coil of the relay 1 is connected to the power supply voltage VCC, the positive pole of the normally open switch of the relay 1 is connected to the power supply voltage VCC, the negative pole of the normally open switch of the relay 1 is connected to the power supply end of one coil of the two-position two-way solenoid valve, and the other power supply end of the coil of the two-position two-way solenoid valve is connected to the ground terminal GND.

[0011] Preferably, the push-type switch is installed on a pedal.

[0012] Preferably, the air inlet of the two-position two-way solenoid valve is connected to a quick-connect connector, and the quick-connect connector is plugged into the ventilator.

[0013] The present utility model has the following beneficial effects: the present structure enables the anesthesiologist to easily turn the ventilator on and off by foot operation during the operation, and this design not only improves the convenience of operation, but more importantly reduces the number of times the anesthesiologist frequently enters and exits the operating room, thereby reducing the risk of infection and shortening the operation time. The foot-controlled design enables the anesthesiologist to concentrate on the patient's physiological state and ensure that a quick response can be made at critical moments. It truly solves the technical problem of "realizing rapid on-off switching of the air path connecting the ventilator and the endotracheal tube in the operating room while avoiding the risk of surgical infection to the greatest extent", which can reduce the risk of surgical infection and shorten the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the circuit connection of an on-off structure for connecting an air circuit between a ventilator and an endotracheal tube in Example 1;

[0015] Figure 2This is a circuit connection diagram of the on-off structure of the air circuit connecting the ventilator and the endotracheal tube in Example 2.

[0016] Figure 1: ventilator 1, endotracheal tube 2, two-position two-way solenoid valve 3, air inlet 301, air outlet 302, coil power supply end 303, power supply circuit 4, quick-connect connector 5, power supply voltage VCC 401, push-type switch 402, single-chip microcomputer 1 403, single-chip microcomputer 2 404, relay 1 405, wireless communication receiving circuit 406, wireless communication transmitting circuit 407. DETAILED DESCRIPTION

[0017] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] See also Figure 1 As shown, the present embodiment discloses an on-off structure for connecting an air circuit between a ventilator and an endotracheal tube, comprising a ventilator 1, an endotracheal tube 2, and a two-position two-way solenoid valve 3. The air inlet 301 of the two-position two-way solenoid valve 3 is connected to the air outlet 302 of the ventilator 1, and the air outlet 302 of the two-position two-way solenoid valve 3 is connected to the connector of the endotracheal tube 2. The power supply circuit 4 of the two-position two-way solenoid valve 3 is provided with a power supply voltage VCC401 and a push-type switch 402 that controls whether the power supply circuit 4 is turned on or off and is driven by the foot.

[0019] In this embodiment, the electrical connection structure between the push-type switch 402 and the power supply circuit 4 of the two-position two-way solenoid valve 3 is as follows: the power supply voltage VCC401 and the push-type switch 402 are connected in series through wires and then connected between the two coil power supply terminals 303 of the two-position two-way solenoid valve 3.

[0020] The push-type switch 402 in this embodiment is installed on the pedal, and the push-type switch 402 is directly driven by the pedal action.

[0021] In this embodiment, the air inlet 301 of the two-position two-way solenoid valve 3 is connected to the quick-connect connector 5, which is plugged into the ventilator 1. The quick-connect connector 5 can be purchased directly. You only need to buy a universal quick-connect connector 5 that can be universally connected to different models of ventilators 1.

[0022] The working principle of this structure is as follows: first, the push-press switch 402 is set in the operating room. The push-press switch 402 can be installed on an existing pedal. During the operation, the push-press switch 402 is pressed once by stepping on the pedal once, and then the coil on the two-position two-way solenoid valve 3 is energized to ensure that the tracheal tube 2 is connected with the ventilator 1. The pedal is stepped on again, and the coil on the two-position two-way solenoid valve 3 is de-energized to ensure that the ventilator 1 is disconnected from the tracheal tube 2. Therefore, this structure can quickly connect and disconnect the ventilator 1 and the tracheal tube 2. Therefore, this structure can enable the anesthesiologist to easily connect and disconnect the air path between the ventilator and the tracheal tube by foot operation during the operation. Moreover, this design not only improves the convenience of operation, but more importantly, reduces the number of times the anesthesiologist frequently enters and exits the operating room, thereby reducing the risk of infection and shortening the operation time. Moreover, the foot-controlled design allows the anesthesiologist to concentrate on the patient's physiological state, ensuring that he can respond quickly at critical moments. Example

[0023] See also Figure 2 As shown, the present embodiment discloses an on-off structure for connecting an air path between a ventilator and an endotracheal tube. In order to realize wireless connection, the electrical connection structure of the push-type switch 402 and the power supply circuit 4 of the two-position two-way solenoid valve 3 is as follows: the power supply circuit 4 also includes a single-chip microcomputer 1 403, a single-chip microcomputer 2 404, a first resistor R1, a second resistor R2, an NPN transistor Q1 and a relay 1 405. The second resistor R2 and the push-type switch 402 are connected in series between an I / O port of the single-chip microcomputer 1 403 and the power supply voltage VCC401. The wireless communication end of the single-chip microcomputer 1 403 is connected to a wireless communication transmitting circuit 407, and the wireless communication end of the single-chip microcomputer 2 404 is connected to a wireless communication The wireless communication receiving circuit 406 is wirelessly connected to the wireless communication transmitting circuit 407, an I / O port of the single-chip microcomputer 2 404 is connected to the base of the NPN transistor Q1, the collector of the NPN transistor Q1 is connected to one end of the coil of the relay 1 405, the other end of the coil of the relay 1 405 is connected to the power supply voltage VCC401, the positive pole of the normally open switch of the relay 1 405 is connected to the power supply voltage VCC401, the negative pole of the normally open switch of the relay 1 405 is connected to one coil power supply end 303 of the two-position two-way solenoid valve 3, and the other coil power supply end 303 of the two-position two-way solenoid valve 3 is connected to the ground terminal GND.

[0024] It should be noted in this application that the specific models of the single-chip microcomputer 1 403 and the single-chip microcomputer 2 404 belong to conventional technology in this field and can be purchased directly. The wireless communication transmitting circuit 407 and the wireless communication receiving circuit 406 also belong to conventional technical means in this field, so they are not described in detail. In addition, how the single-chip microcomputer 1 403 and the single-chip microcomputer 2 404 are connected with switches, relays, transistors, wireless communication transmitting circuit 407 and wireless communication receiving circuit 406 and resistors to achieve wireless communication connection all belong to conventional technology in this field.

[0025] The specific working principle of this structure is as follows: first, the push-press switch 402 is set in the operating room, and the push-press switch 402 can be installed on an existing pedal. During the operation, the push-press switch 402 is pressed once by stepping on the pedal once, and the start signal is sent to the single-chip microcomputer 1 403. At this time, after the single-chip microcomputer 1 403 obtains the start signal, it starts the wireless communication transmitting circuit 407 to send the start signal. At this time, after the wireless communication receiving circuit 406 obtains the start signal, it sends it to the single-chip microcomputer 2 404, and then the single-chip microcomputer 2 404 controls the NPN transistor Q1 to amplify, ensuring that the coil of the relay 1 405 is energized. At this time, the normally open switch of the relay 1 405 changes from normally open to closed state, and at this time, the coil on the two-position two-way solenoid valve 3 is energized, ensuring that the tracheal intubation 2 Connected to the ventilator 1, the pedal is stepped on once, and a power-off signal is sent to the single-chip microcomputer 1 403. After the single-chip microcomputer 1 403 obtains the power-off signal, the wireless communication transmitting circuit 407 is started to send the power-off signal. After the wireless communication receiving circuit 406 obtains the power-off signal, it is sent to the single-chip microcomputer 2 404. Then the single-chip microcomputer 2 404 controls the NPN transistor Q1 to be cut off, ensuring that the coil of the relay 1 405 is de-energized. At this time, the normally open switch of the relay 1 405 returns to the normally open state. At this time, the coil on the two-position two-way solenoid valve 3 is de-energized, ensuring that the ventilator 1 is disconnected from the tracheal tube 2. Therefore, wireless control can be achieved through this structural setting, making the entire wiring simpler, minimizing the constraints on the pedal position of the push-type switch 402, and making the operation more convenient.

[0026] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are within the scope of protection of the present invention.

Claims

1. A switch structure for connecting an air circuit between a ventilator and an endotracheal tube, comprising a ventilator (1), an endotracheal tube (2) and a two-position two-way solenoid valve (3), wherein an air inlet (301) of the two-position two-way solenoid valve (3) is connected to an air outlet (302) of the ventilator (1), and an air outlet (302) of the two-position two-way solenoid valve (3) is connected to a connector of the endotracheal tube (2), characterized in that: The power supply circuit (4) of the two-position two-way solenoid valve (3) is provided with a power supply voltage VCC (401) and a push-type switch (402) that controls whether the power supply circuit (4) is turned on or off and is driven by the foot.

2. The on-off structure for connecting the airway between a ventilator and an endotracheal tube according to claim 1, characterized in that: The electrical connection structure of the push-type switch (402) and the power supply circuit (4) of the two-position two-way solenoid valve (3) is as follows: the power supply voltage VCC (401) and the push-type switch (402) are connected in series through a wire and then connected between the two coil power supply terminals (303) of the two-position two-way solenoid valve (3).

3. The on-off structure for connecting the airway between a ventilator and an endotracheal tube according to claim 1, characterized in that: The electrical connection structure of the push-type switch (402) and the power supply circuit (4) of the two-position two-way solenoid valve (3) is as follows: the power supply circuit (4) also includes a single-chip microcomputer 1 (403), a single-chip microcomputer 2 (404), a first resistor R1, a second resistor R2, an NPN transistor Q1 and a relay 1 (405); the second resistor R2 and the push-type switch (402) are connected in series between an I / O port of the single-chip microcomputer 1 (403) and the power supply voltage VCC (401); a wireless communication transmitting circuit (407) is connected to the wireless communication terminal of the single-chip microcomputer 1 (403); a wireless communication receiving circuit (406) is connected to the wireless communication terminal of the single-chip microcomputer 2 (404); and the wireless communication receiving circuit (407) is connected to the wireless communication terminal of the single-chip microcomputer 2 (404). The circuit (406) is wirelessly connected to the wireless communication transmitting circuit (407), an I / O port of the single-chip computer 2 (404) is connected to the base of the NPN transistor Q1, the collector of the NPN transistor Q1 is connected to one end of the coil of the relay 1 (405), the other end of the coil of the relay 1 (405) is connected to the power supply voltage VCC (401), the positive pole of the normally open switch of the relay 1 (405) is connected to the power supply voltage VCC (401), the negative pole of the normally open switch of the relay 1 (405) is connected to one coil power supply end (303) of the two-position two-way solenoid valve (3), and the other coil power supply end (303) of the two-position two-way solenoid valve (3) is connected to the ground terminal GND.

4. The on-off structure for connecting the airway between a ventilator and an endotracheal tube according to claim 1, 2 or 3, characterized in that: The push-type switch (402) is installed on the pedal.

5. The on-off structure for connecting the airway between a ventilator and an endotracheal tube according to claim 1, 2 or 3, characterized in that: The air inlet (301) of the two-position two-way solenoid valve (3) is connected to a quick-connect connector (5), and the quick-connect connector (5) is plugged into the ventilator (1).

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