Electric control driving device for PEEP valve

Abstract

The utility model discloses an electrically-controlled driving device for a PEEP valve, which relates to the technical field of medical instruments and comprises a magnet base, magnetic steel is placed on the upper surface of the magnet base, a coil holder is placed on the upper surface of the magnetic steel, a coil is slidably sleeved on the outer wall of the magnetic steel, and the coil holder is provided with a magnet. The upper surface of the coil is fixedly connected with the outer wall of the coil base through glue, the upper surface of the magnet base is sleeved with a magnet ring, the upper surface of the magnet ring is fixedly connected with a magnet cover, the magnetic steel, the coil and the coil base are all arranged in the magnet ring and the magnet cover, and the middle of the magnet cover is slidably sleeved with an ejector rod. The electric control mode is adopted for controlling the magnitude of current passing through the coil so as to generate force of different magnitudes, more accurate control can be achieved, the requirements of different positive end-call voltages can be met, and the multi-stage positive end-call voltage control device has the advantages of being more stable, more efficient, high in consistency and capable of achieving accurate control over the multi-stage positive end-call voltages.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an electric control driving device for a PEEP valve. Background Art

[0002] PEEP (Positive End-Expiratory Pressure) is the positive pressure at the end of expiration, which is generated by the mechanical ventilator during the inspiratory phase. When the airway opens at the end of expiration, the airway pressure remains higher than the atmospheric pressure to prevent alveolar collapse. It plays an important role in the treatment of respiratory distress syndrome (ARDS), non-cardiogenic pulmonary edema, and pulmonary hemorrhage.

[0003] For example, a Chinese patent document with publication number CN101468225B discloses a mechanical PEEP valve, which records that "it comprises a valve body (1), a connecting element (4), a guide element (7) and a spring (8), wherein: the valve body (1) and the connecting element (4) are threadedly connected; the spring (8) is sleeved on the guide element (7), and the spring (8) is located between the connecting element (4) and the guide element (7); the connecting element (4) is sleeved on the guide element (7), and the two are clearance-fitted". The device can use the spring (8) to adjust the PEEP value through the mechanical PEEP valve of the present invention with this structure, and the adjustment range is between 0-20cmH2O, so as to meet the needs of patients in different states; and when the spring pressure is zero, the gravity applied to the diaphragm (9) meets the opening pressure requirement of EN740.

[0004] However, the following defects or problems still exist in combination with the existing technology: most of the PEEP valves on the market are mechanical structures and are pneumatically controlled. Because they are pneumatically controlled, the flow rate of the airflow passing through is difficult to control, resulting in the same force being generated each time. For this reason, we propose an electric control drive device for a PEEP valve. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an electric control driving device for a PEEP valve.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An electric control drive device for a PEEP valve comprises a magnet base, a magnetic steel is placed on the upper surface of the magnet base, a coil seat is placed on the upper surface of the magnetic steel, a coil is slidably sleeved on the outer wall of the magnetic steel, the upper surface of the coil is fixedly connected to the outer wall of the coil seat by glue, a magnet ring is sleeved on the upper surface of the magnet base, a magnet cover is fixedly connected to the upper surface of the magnet ring, the magnetic steel, the coil and the coil seat are all arranged inside the magnet ring and the magnet cover, a push rod is slidably sleeved on the middle part of the magnet cover, one end of the push rod is in contact with the outer wall of the coil seat, a nine-core male connector is fixedly installed on the outer wall of the magnet cover, and the nine-core male connector is electrically connected to the coil through a wire.

[0008] Preferably, a recessed hole is provided at the center of the upper surface of the magnet base, and the magnetic steel is fixedly nested in the recessed hole of the magnet base.

[0009] Preferably, a center hole is opened in the middle of the magnetic steel, a first coil sleeve is sleeved in the center hole of the magnetic steel, a guide rod is fixedly connected to the lower surface of the coil seat, the guide rod extends into the first coil sleeve, and is slidably sleeved with the first coil sleeve.

[0010] Preferably, a second coil sleeve is fixedly sleeved at the connection between the magnet cover and the push rod, and the second coil sleeve is slidably sleeved with the push rod.

[0011] Preferably, a groove is formed on the lower surface of the magnet ring, a boss is formed on the upper surface of the magnet base, and the magnet base is engaged with the groove on the lower surface of the magnet ring via the boss.

[0012] Preferably, a trapezoidal hole is opened on one side of the magnet cover, the nine-core male head is inserted into the trapezoidal hole on the side of the magnet cover, the nine-core male head is connected to the magnet cover by screws, and the magnet cover is fixedly connected to the magnet ring by screws.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, an electric control method is adopted to control the size of the current passing through the coil by controlling the size of the coil voltage to generate forces of different sizes, thereby changing the control mode, achieving more precise control, and meeting the requirements of different positive end-expiratory pressures. Compared with the previous mechanical PEEP valves, it is more stable, more efficient, and more consistent, and can achieve precise control of multi-level positive end-expiratory pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic structural diagram of an electric control drive device for a PEEP valve.

[0016] Figure 2 It is a three-dimensional assembly diagram of an electric control drive device for a PEEP valve of the utility model.

[0017] Figure 3 The utility model is a top view of an electric control drive device for a PEEP valve.

[0018] Figure 4 The utility model is an electric control driving device for a PEEP valve Figure 3 Cross-sectional view of AA.

[0019] Numbers in the figure: 1, magnet base; 2, magnetic steel; 3, first coil sleeve; 4, magnet ring; 5, coil seat; 6, magnet cover; 7, second coil sleeve; 8, push rod; 9, coil; 10, nine-core male connector. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] As attached Figure 1 To Attachment Figure 4 As shown:

[0022] A kind of electric control driving device for PEEP valve comprises a magnet base 1, a magnet steel 2 is placed on the upper surface of the magnet base 1, a coil seat 5 is placed on the upper surface of the magnet steel 2, a coil 9 is slidably sleeved on the outer wall of the magnet steel 2, the upper surface of the coil 9 is fixedly connected to the outer wall of the coil seat 5 by glue, a magnet ring 4 is sleeved on the upper surface of the magnet base 1, a magnet cover 6 is fixedly connected to the upper surface of the magnet ring 4, the magnet steel 2, the coil 9, and the coil seat 5 are all arranged inside the magnet ring 4 and the magnet cover 6, a push rod 8 is slidably sleeved on the middle part of the magnet cover 6, one end of the push rod 8 is in contact with the outer wall of the coil seat 5, a nine-core male connector 10 is fixedly installed on the outer wall of the magnet cover 6, the nine-core male connector 10 is electrically connected to the coil 9 through a wire, and the electrically connected wires (not shown) are arranged in a cavity, that is, two wires coming out of the coil 9 are wound around two protrusions on the upper surface of the coil seat 5, and are respectively connected to the left and right two wires of the five-wire array of the nine-core male connector 10 and the wires on the two protrusions on the upper surface of the coil seat 5 through two wires.

[0023] It is worth mentioning that the device is used to be installed inside the PEEP valve on the ventilator. The nine-core male connector 10 is electrically connected to the control circuit board on the ventilator, and the end of the push rod 8 away from the coil seat 5 is in contact with the diaphragm inside the PEEP valve (not shown).

[0024] In the above technical solution, when the patient inhales, the inhalation port is negative pressure, which is detected by the pressure detection device on the ventilator. The voltage passing through the nine-core male connector 10 is increased by controlling the circuit board, so that the current passing through the coil 9 increases, and the ability of the coil 9 to cut the magnetic field becomes stronger. The coil 9 drives the coil seat 5 to rise, and the coil seat 5 pushes the push rod 8 to rise accordingly. The push rod 8 presses against the upper diaphragm, allowing the patient to inhale;

[0025] When the patient exhales, the inhalation port is under negative pressure, which is detected by the pressure detection device on the ventilator. The voltage passing through the nine-core male connector 10 is reduced by the control circuit board, so that the current passing through the coil 9 is reduced, and the ability of the coil 9 to cut the magnetic field becomes weaker, the coil seat 5 drops, and the push rod 8 drops accordingly. It is unable to support the upper diaphragm, so that the gas is discharged.

[0026] As attached Figure 2 and attached Figure 4 As shown, a recessed hole is opened at the center of the upper surface of the magnet base 1, and the magnetic steel 2 is fixedly nested in the recessed hole of the magnet base 1.

[0027] In the above technical solution, through the design of the recessed hole, the magnetic steel 2 is fixedly nested in the recessed hole of the magnet base 1, thereby keeping the surface of the magnetic steel 2 parallel and preventing the magnetic steel 2 from tilting.

[0028] As attached Figure 4 As shown, a center hole is opened in the middle of the magnetic steel 2, and a first coil sleeve 3 is sleeved in the center hole of the magnetic steel 2. A guide rod is fixedly connected to the lower surface of the coil seat 5, and the guide rod extends into the first coil sleeve 3 and is slidably sleeved with the first coil sleeve 3.

[0029] In the above technical solution, the guide rod is designed to avoid displacement of the coil seat 5 during lifting and lowering, thereby improving the stability of the coil seat 5 during up and down movement. The first coil sleeve 3 is designed to protect the magnetic steel 2, thereby avoiding direct contact between the guide rod and the magnetic steel 2.

[0030] As attached Figure 4 As shown, the second coil sleeve 7 is fixedly sleeved at the connection between the magnet cover 6 and the push rod 8, and the second coil sleeve 7 is slidably sleeved with the push rod 8.

[0031] In the above technical solution, through the design of the second coil sleeve 7, the second coil sleeve 7 is used to protect the magnet cover 6 to prevent the push rod 8 from directly contacting the magnet cover 6.

[0032] A groove is provided on the lower surface of the magnet ring 4, and a boss is provided on the upper surface of the magnet base 1. The magnet base 1 is clamped with the groove on the lower surface of the magnet ring 4 through the boss. A trapezoidal hole is provided on one side of the magnet cover 6. The nine-core male head 10 is inserted into the trapezoidal hole on the side of the magnet cover 6. The nine-core male head 10 is connected to the magnet cover 6 by screws, and the magnet cover 6 is fixedly connected to the magnet ring 4 by screws.

[0033] The specific usage and function of this embodiment are as follows:

[0034] When the utility model is used, the device is used to be installed inside the PEEP valve on the ventilator (not shown), and the nine-core male connector 10 is electrically connected to the control circuit board on the ventilator (not shown);

[0035] When the patient inhales, the inhalation port is under negative pressure, which is detected by the pressure detection device on the ventilator. The voltage passing through the nine-core male connector 10 is increased by the control circuit board, so that the current passing through the coil 9 increases, and the ability of the coil 9 to cut the magnetic field becomes stronger. The coil 9 drives the coil seat 5 to rise, and the coil seat 5 pushes the push rod 8 to rise accordingly. The push rod 8 presses against the upper diaphragm, allowing the patient to inhale;

[0036] When the patient exhales, the inhalation port is under negative pressure, which is detected by the pressure detection device on the ventilator. The voltage passing through the nine-core male connector 10 is reduced by the control circuit board, so that the current passing through the coil 9 is reduced, and the ability of the coil 9 to cut the magnetic field becomes weaker, the coil seat 5 drops, and the push rod 8 drops accordingly. It is unable to support the upper diaphragm, so that the gas is discharged.

[0037] For the above structure and process, please refer to Figure 1-4 .

[0038] It adopts an electronic control method, by controlling the size of the voltage of coil 9, to control the size of the current passing through coil 9, so as to generate forces of different sizes, thus changing the control mode, achieving more precise control, and meeting the requirements of different positive end-expiratory pressures. Compared with the previous mechanical PEEP valves, it is more stable, more efficient, and more consistent, and can achieve precise control of multi-level positive end-expiratory pressure.

[0039] It should be understood in the present invention that the PEEP valve, the internal diaphragm of the PEEP valve, the ventilator, and the pressure detection device inside the ventilator are all prior art.

[0040] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An electric control drive device for a PEEP valve, comprising a magnet base (1), characterized in that: A magnetic steel (2) is placed on the upper surface of the magnetic steel (1), a coil seat (5) is placed on the upper surface of the magnetic steel (2), a coil (9) is slidably sleeved on the outer wall of the magnetic steel (2), the upper surface of the coil (9) is fixedly connected to the outer wall of the coil seat (5) by glue, a magnetic ring (4) is sleeved on the upper surface of the magnetic base (1), the upper surface of the magnetic ring (4) is fixedly connected to the magnet cover (6), the magnetic steel (2), the coil (9) and the coil seat (5) are all arranged inside the magnetic ring (4) and the magnet cover (6), a push rod (8) is slidably sleeved on the middle part of the magnet cover (6), one end of the push rod (8) is in contact with the outer wall of the coil seat (5), a nine-core male head (10) is fixedly installed on the outer wall of the magnet cover (6), and the nine-core male head (10) is electrically connected to the coil (9) through a wire.

2. An electric control driving device for a PEEP valve according to claim 1, characterized in that: A recessed hole is provided at the center of the upper surface of the magnet base (1), and the magnetic steel (2) is fixedly nested in the recessed hole of the magnet base (1).

3. The electric control driving device for a PEEP valve according to claim 1, characterized in that: A central hole is provided in the middle of the magnetic steel (2), a first coil sleeve (3) is sleeved in the central hole of the magnetic steel (2), a guide rod is fixedly connected to the lower surface of the coil seat (5), the guide rod extends into the first coil sleeve (3), and is slidably sleeved with the first coil sleeve (3).

4. The electric control driving device for a PEEP valve according to claim 1, characterized in that: A second coil sleeve (7) is fixedly sleeved at the connection between the magnet cover (6) and the top rod (8), and the second coil sleeve (7) is slidably sleeved with the top rod (8).

5. The electric control driving device for a PEEP valve according to claim 1, characterized in that: The lower surface of the magnet ring (4) is provided with a groove, the upper surface of the magnet base (1) is provided with a boss, and the magnet base (1) is mutually engaged with the groove on the lower surface of the magnet ring (4) via the boss.

6. The electric control driving device for a PEEP valve according to claim 1, characterized in that: A trapezoidal hole is provided on one side of the magnet cover (6), the nine-core male head (10) is inserted into the trapezoidal hole on the side of the magnet cover (6), the nine-core male head (10) is connected to the magnet cover (6) by screws, and the magnet cover (6) is fixedly connected to the magnet ring (4) by screws.

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