CN211096410U - Negative pressure drainage device capable of monitoring and adjusting pressure in bottle - Google Patents

Abstract

The utility model relates to a can monitor and adjust negative pressure drainage ware of bottle internal pressure, include: negative pressure drainage ware body, negative pressure controlling means, negative pressure drainage ware body include: the vacuum-pumping vacuum bottle comprises a rigid bottle body with an inner cavity, a drainage tube communicated with the inner cavity of the bottle body and a vacuum-pumping motor, wherein the vacuum-pumping motor is used for vacuumizing the inner cavity of the bottle body to form negative pressure; the negative pressure control device comprises: the device comprises a micro control unit, a power supply module, a sensor module, a motor control module, an indicator light module and a gear control switch module. The utility model has strong adaptability, and can better meet the drainage requirements of negative pressure with different pressure values; a one-way valve is arranged in the drainage tube or at the outlet of the drainage tube to prevent the liquid in the bottle body from overflowing or flowing backwards after being fully pumped; the backflow prevention device prevents liquid in the bottle body from entering the motor to burn out the circuit when the bottle body is inclined; simple structure, convenient operation, low economic cost and easy large-scale popularization and application.

Description

Negative pressure drainage device capable of monitoring and adjusting pressure in bottle

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to can monitor and adjust negative pressure drainage ware of bottle internal pressure can realize the adjustment of the pressure that keeps off more and through the start-up or the stop of monitoring bottle internal pressure value automatic control motor.

Background

At present, in the field of medical clinical, postoperative wound surface negative pressure drainage has been widely popularized and applied, and is mainly used for thyroid, mammary, trauma surgery and the like, the wounds of body parts of the operations are large, the wound surface has more bleeding and seepage, effective wound surface nursing is realized through the negative pressure drainage, and the negative pressure drainage has great practical significance for wound healing, and prevention of complications such as flap necrosis, wound infection, tumor recurrence and the like.

The traditional disposable spring type negative pressure drainage device and the silicon rubber negative pressure suction ball have small negative pressure value and cannot be adjusted, after the negative pressure disappears, a negative pressure drainage disc needs to be manually extruded or replaced by a new negative pressure drainage disc to cause resource waste, and the negative pressure value is difficult to moderate and is easy to leak air; during the period, the problems of blockage of the drainage tube and the like can also occur, and the postoperative recovery is influenced. Patent CN204890724U discloses a portable electronic negative pressure drainage ware, provides the negative pressure through setting up the vacuum pump to the bottle evacuation, can produce powerful negative pressure, sustainable pressurization, negative pressure duration is long automatically. However, the negative pressure of the medical apparatus is generally divided into low pressure, medium pressure and high pressure, and only a negative pressure pumping mode of one-step operation is adopted, so that the medical apparatus is very inconvenient in clinical use and has poor adaptability; in addition, the problem of no protection of the circuit under the states of blockage of the drainage tube and leakage of the electric negative pressure equipment still exists, and potential safety hazards exist for patients.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a negative pressure drainage device which can monitor and adjust the pressure in the bottle, and can be provided with three-gear switches of low pressure, medium pressure and high pressure, thereby facilitating the adjustment of the negative pressure value in the bottle; a one-way valve is arranged in the drainage tube or at the outlet of the drainage tube to prevent the liquid in the bottle body from overflowing or flowing backwards after being fully pumped; install at gas outlet and atmospheric pressure monitoring hole department and prevent the device against the current, prevent that liquid refluence from burning out the circuit in the bottle, the utility model discloses the technical scheme who adopts as follows:

a negative pressure drainage device capable of monitoring and regulating pressure in a bottle, comprising: negative pressure drainage ware body, negative pressure controlling means, negative pressure drainage ware body include: the vacuum-pumping vacuum bottle comprises a rigid bottle body with an inner cavity, a drainage tube communicated with the inner cavity of the bottle body and a vacuum-pumping motor, wherein the vacuum-pumping motor is used for vacuumizing the inner cavity of the bottle body to form negative pressure;

the negative pressure control device comprises: the system comprises a micro control unit, a power supply module, a sensor module, a motor control module, an indicator light module and a gear control switch module; the micro control unit is respectively and electrically connected with the sensor module, the motor control module, the indicator light module and the gear control switch module, and is used for realizing sensor data acquisition, gear control switch signal acquisition, gear indicator light control and motor start/stop control;

the sensor module is used for collecting pressure values in the rigid bottle body, the power supply module is used for supplying power to the negative pressure control device, the motor control module is used for controlling the starting or stopping of the vacuumizing motor, the gear control switch module is used for selecting a current negative pressure gear, and the indicator light module is used for indicating the currently selected negative pressure gear;

the drainage tube is communicated with the inner cavity of the bottle body through a one-way valve.

The utility model has the advantages that:

1) the utility model realizes different negative pressure selection and control through the gear control switch, has strong adaptability, and can better meet the drainage requirements of negative pressure with different pressure values;

2) the utility model is provided with the one-way valve in the drainage tube or at the outlet of the drainage tube, which prevents the liquid in the bottle body from overflowing or flowing backwards after being fully pumped;

3) the utility model is provided with the check valve on the motor connecting pipe to prevent the gas from flowing backwards; the negative pressure in the bottle is unstable, and the gas outlet and the air pressure monitoring hole are provided with the anti-reflux device, so that the liquid in the bottle is prevented from entering the motor to burn out the circuit when the bottle is inclined.

4) The utility model has the advantages of being simple in structure and convenient in operation, economic cost is low, easily extensive popularization and application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are illustrative of some embodiments of the invention, and that those skilled in the art will be able to derive other drawings without inventive step from these drawings, which are within the scope of the present application.

Fig. 1 is a schematic circuit diagram of a negative pressure control device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a flow diverter according to an embodiment of the present invention;

fig. 3 is a schematic structural view illustrating components in a bottle cap according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating an operation panel deployment according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a circuit board layout according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating the connection of the vacuum pumping motor according to an embodiment of the present invention;

fig. 7 is a schematic structural view illustrating an anti-reverse flow device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram illustrating that a through hole is formed in the bottom of the outer cylinder of the backflow prevention device according to an embodiment of the present invention.

In the figure, 1-a rigid bottle body, 2-a bottle cap, 3-a support seat, 4-a lifting rope, 5-a drainage tube, 6-a one-way valve, 7-an anti-reflux device, 8-a sealing ring, 9-a vacuum-pumping motor, 10-a storage battery, 11-a gear control switch, 12-a pressure indicator lamp, 13-a power switch, 14-a circuit board, 15-a check valve, 16-a connecting tube, 17-a power input connector, 18-a power output connector, 19-a microcontroller, 20-a pressure sensor, 21-a battery sheet, 22-an electric wire, 23-an outer cylinder, 24-a buoy, 25-a sealing gasket, 26-a gas outlet, 27-a gas monitoring hole, 28-a through hole, 29-a vertical shaft and 30-holes.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

A negative pressure drainage device capable of monitoring and regulating pressure in a bottle, comprising: negative pressure drainage ware body, negative pressure controlling means, negative pressure drainage ware body include: the vacuum-pumping vacuum bottle comprises a rigid bottle body with an inner cavity, a drainage tube and a vacuum-pumping motor, wherein the drainage tube is communicated with the inner cavity of the bottle body;

the negative pressure control device comprises: the device comprises a micro control unit, a power supply module, a sensor module, a motor control module, an indicator light module and a gear control switch module. As shown in fig. 1, it is a schematic diagram of a circuit principle of a negative pressure control device according to an embodiment of the present invention. The micro control unit is respectively electrically connected with the sensor module, the motor control module, the indicator light module and the gear control switch module, and is used for realizing sensor data acquisition, gear control switch signal acquisition, gear indicator light control and motor start/stop control. The sensor module is used for collecting a pressure value in the rigid bottle body; the power module be used for supplying power for negative pressure control device, motor control module be used for controlling the start-up or the stop of evacuation motor, fender position control switch module be used for selecting current negative pressure fender position, the pilot lamp module be used for instructing current selected negative pressure fender position.

The micro control unit can set specific low pressure value, medium pressure value and high pressure value in advance, and a low pressure sensing threshold, a medium pressure sensing threshold and a high pressure sensing threshold, and is matched with the gear control switch module to realize the monitoring and adjustment of the pressure in the bottle. The method by which the described micro-control unit monitors and regulates the pressure in the bottle is prior art and will not be described in detail here.

The sensor module can be a pressure sensor commonly used in the market.

Further, the negative pressure value that the sensor module gathered can indicate through the pilot lamp: and after the specific pressure value is detected, comparing and judging with a preset pressure value, and if the pressure value is lower than the preset pressure value, turning on the lamp, and turning off the lamp after the preset pressure value is reached. Or, the external digital display module directly displays the current pressure value in the bottle.

The gear control switch module is set to be adjustable in three gears of low voltage, medium voltage and high voltage, and is correspondingly provided with a gear lamp for prompting the current gear. In the field of medical appliances, if the negative pressure in a bottle is 0 to-20 kpa, the bottle is defined as low pressure; when the negative pressure in the bottle is-20 to-60 kpa, the negative pressure is the middle pressure; when the negative pressure in the bottle is less than-60. kpa, the bottle is high pressure. Because the requirement of different department operations on drainage pressure is different, the drainage is thorough under the condition of ensuring safety and minimum injury to the muscle tissue of a patient, and the drainage pressure is required to be adjusted according to specific conditions in the drainage. The gear control switch module can be provided with a protective cap or/and marked on the bottle body obviously to prevent gear misoperation.

The utility model relates to a can monitor and adjust negative pressure drainage ware of bottle internal pressure, its working process as follows: the power switch is turned on, the gear control switch is pressed to select an adaptive negative pressure gear, the corresponding gear lamp is turned on according to the selected low-pressure gear, the medium-pressure gear or the high-pressure gear, the pressure sensor senses and collects the pressure value in the bottle, when the pressure value is not within the specified numerical range, the micro control unit controls the vacuumizing motor to be turned on, and the vacuumizing motor stops working when the air is continuously pumped to the set pressure value or when the air is continuously pumped for 10 minutes but does not reach the set pressure value. And (4) the system enters a low power consumption mode, the system waits for 1 hour to work once, the system continuously checks the pressure value, and whether to pump air or not is determined according to the pressure value. The setting of the specific continuous air-extracting time and the low-power consumption waiting time can be adjusted according to the specific application requirements.

Furthermore, the power module adopts a storage battery to supply power for the negative pressure control device. The embodiment of the utility model provides an in, because consider the problem of product sterilization before dispatching from the factory, if for rechargeable battery, the sterilization high temperature can explode, consequently the product before the sterilization is the battery case, during the use install again the battery can, the battery can be ordinary battery, also can adopt rechargeable battery.

As shown in fig. 2, a schematic structural diagram of a flow diverter according to an embodiment of the present invention is exemplarily shown; as shown in fig. 3, a schematic structural diagram of components in a bottle cap according to an embodiment of the present invention is exemplarily shown. In the practical example, two gears of low pressure and medium pressure are provided for selection. A negative pressure drainage device capable of monitoring and regulating pressure in a bottle, comprising: the device comprises a rigid bottle body 1, a bottle cap 2, a supporting seat 3, a lifting rope 4, a drainage tube 5, a one-way valve 6, an anti-reflux device 7, a sealing ring 8, a vacuum-pumping motor 9, a storage battery 10, a circuit board 14, a check valve 15 and a connecting pipe 16;

in the embodiment, a cavity is arranged in the bottle cap 2, a supporting seat 3 is arranged below the cavity, the rigid bottle body 1 is screwed with the supporting seat 3 through threads, and a sealing ring 8 is arranged in an annular compression joint ring of the rigid bottle body 1 and the supporting seat 3; the lifting rope 4 is used for hanging the negative pressure drainage device at positions such as nursing sickbeds and the like, and the bottle body can be ensured to be placed in the forward direction in a hanging state. A check valve 15 is installed on a connection pipe 16 connected to the vacuum motor 9. The inner cavity of the bottle cap 2 is provided with a circuit board 14 and a vacuum-pumping motor 9.

As shown in fig. 4, an operation panel deployment diagram of an embodiment of the present invention is exemplarily shown; as shown in fig. 5, a schematic diagram of a circuit board layout according to an embodiment of the present invention is exemplarily shown; as shown in fig. 6, a schematic connection diagram of the vacuum pumping motor according to an embodiment of the present invention is exemplarily shown. In this embodiment, a power input connector 17, a power output connector 18, a microcontroller 19, a pressure sensor 20, a power switch 13, a gear control switch 11 and a pressure indicator lamp 12 are distributed on the circuit board 14, a power supply installation groove is further formed in the inner cavity of the bottle cap 2, battery pieces 21 are arranged at two ends of the power supply installation groove, a storage battery 10 is installed in the power supply installation groove, two poles of the storage battery 10 are in contact with the battery pieces 21, and the battery pieces 21 are further connected with the power input connector 17 on the circuit board 14 through electric wires 22. The power switch 13, the gear control switch 11 and the pressure indicator lamp 12 are externally arranged outside the bottle cap 2 through small holes formed in the bottle cap 2. In this embodiment, the gear control switch 11 is set to two gears, namely a low-voltage gear and a medium-voltage gear, the power switch 13 is turned on, the low-voltage or medium-voltage gear is selected by the gear control switch 11, the corresponding low-voltage indicator lamp or medium-voltage indicator lamp is turned on, and the monitoring and the adjustment of the pressure in the negative pressure drainage bottle are realized by the microcontroller 19.

The lower surface of the bottle cap 2 is provided with a drainage inlet, a gas outlet 26 and a gas pressure monitoring hole 27, wherein the drainage inlet is used for installing a drainage tube 5, and the drainage inlet is provided with a one-way valve 6; the gas outlet 26 is connected with the vacuum-pumping motor 9 through the connecting pipe 16, and the vacuum-pumping motor 9 is connected with the power input joint 17; the air pressure monitoring hole 27 is connected to the pressure sensor 20.

The gas outlet 26 and the gas pressure monitoring hole 27 on the back of the support seat 3 are provided with a backflow preventing device 7. As shown in fig. 7, a schematic structural diagram of a backflow prevention device according to an embodiment of the present invention is exemplarily shown; as shown in fig. 8, a schematic structural diagram of the backflow prevention device according to an embodiment of the present invention is exemplarily shown, in which a through hole is formed in the bottom of the outer cylinder. The anti-reflux device 7 is composed of an outer cylinder 23 and a buoy 24, wherein the bottom of the outer cylinder 23 is provided with a through hole 28, the center inside the bottom of the outer cylinder 23 is provided with a vertical shaft 29, the center of the buoy 24 is provided with a hole 30 to just accommodate the vertical shaft 29, the upper end of the hole 30 is provided with a sealing gasket 25, the buoy 24 can move up and down along the vertical shaft 29, and the size of the sealing gasket 25 is subject to the purpose of simultaneously sealing the gas outlet 26 and the gas pressure monitoring hole 27. The backflow prevention device prevents liquid in the bottle body from entering the motor to burn out the circuit when the bottle body inclines.

Further, the embodiment of the utility model provides an in, the circuit board has increased and has prevented reverse connection protection, can guarantee that reverse connection power does not damage the circuit board.

Finally, it is to be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the scope of the present invention is not limited thereto. Those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims (10)

1. A negative pressure drainage device capable of monitoring and regulating pressure in a bottle, comprising: negative pressure drainage ware body, negative pressure controlling means, negative pressure drainage ware body include: rigid bottle with inner chamber, with drainage tube and the evacuation motor of bottle inner chamber intercommunication, the evacuation motor be used for forming the negative pressure to the evacuation of bottle inner chamber, its characterized in that:

the negative pressure control device comprises: the system comprises a micro control unit, a power supply module, a sensor module, a motor control module, an indicator light module and a gear control switch module; the micro control unit is respectively and electrically connected with the sensor module, the motor control module, the indicator light module and the gear control switch module, and is used for realizing sensor data acquisition, gear control switch signal acquisition, gear indicator light control and motor start/stop control;

the sensor module is used for collecting pressure values in the rigid bottle body, the power supply module is used for supplying power to the negative pressure control device, the motor control module is used for controlling the starting or stopping of the vacuumizing motor, the gear control switch module is used for selecting a current negative pressure gear, and the indicator light module is used for indicating the currently selected negative pressure gear;

the drainage tube is communicated with the inner cavity of the bottle body through a one-way valve.

2. The negative pressure flow diverter according to claim 1, wherein the value of the negative pressure collected by the sensor module is indicated by an indicator light; or, the external digital display module directly displays the current pressure value in the bottle.

3. The negative pressure flow diverter according to claim 2, wherein the gear control switch module is adjustable in three gears, namely low-voltage, medium-voltage and high-voltage, and is provided with a gear lamp to indicate the current gear.

4. The negative pressure flow diverter according to claim 3, wherein the gear control switch module is provided with a protective cap or/and marked on the bottle body to prevent gear misoperation.

5. The negative pressure flow diverter of claim 4, wherein the power module supplies power to the negative pressure control device by using a storage battery.

6. The negative pressure flow diverter of any one of claims 1-5, comprising: the device comprises a rigid bottle body (1), a bottle cap (2), a supporting seat (3), a drainage tube (5), a one-way valve (6), a sealing ring (8), a vacuum-pumping motor (9), a storage battery (10), a battery piece (21) and a circuit board (14);

a cavity is arranged in the bottle cap (2), a supporting seat (3) is arranged below the bottle cap, the rigid bottle body (1) is screwed with the supporting seat (3) through threads, and a sealing ring (8) is arranged in an annular compression joint ring of the rigid bottle body (1) and the supporting seat (3);

the vacuum bottle cap comprises a bottle cap inner cavity, and is characterized in that a circuit board (14) and a vacuum pumping motor (9) are arranged in the bottle cap inner cavity, a power input connector (17), a power output connector (18), a microcontroller (19), a pressure sensor (20), a power switch (13), a gear control switch (11) and a pressure indicator lamp (12) are distributed on the circuit board (14), a power supply installation groove is further formed in the bottle cap inner cavity, battery pieces (21) are arranged at two ends of the power supply installation groove, a storage battery (10) is installed in the power supply installation groove, two poles of the storage battery (10) are in contact connection with the battery pieces (21), and the battery pieces (21) are further connected with the power input connector (17;

the lower surface of the bottle cap (2) is provided with a drainage inlet, a gas outlet (26) and a gas pressure monitoring hole (27), wherein the drainage inlet is used for installing a drainage tube (5), and the drainage inlet is provided with a one-way valve (6); the gas outlet (26) is connected with a vacuum-pumping motor (9) through a connecting pipe (16), and the vacuum-pumping motor (9) is connected with a power input joint (17); the air pressure monitoring hole (27) is connected with the pressure sensor (20).

7. The negative pressure flow diverter according to claim 6, characterized in that a backflow prevention device (7) is installed at the gas outlet (26) and the gas pressure monitoring hole (27) on the back of the support base (3), the backflow prevention device (7) is composed of an outer cylinder (23) and a buoy (24), wherein a through hole (28) is formed in the cylinder bottom of the outer cylinder (23), a vertical shaft (29) is arranged in the center of the cylinder bottom of the outer cylinder (23), a hole (30) is formed in the center of the buoy (24) to just accommodate the vertical shaft (29), a sealing gasket (25) is installed at the upper end of the hole (30), the buoy (24) can move up and down along the vertical shaft (29), and the size of the sealing gasket (25) is based on the fact that the gas outlet (26) and the gas pressure monitoring hole (27) can be simultaneously sealed.

8. The negative pressure flow diverter of claim 7, characterized in that a lifting rope (4) is arranged at the center of the upper surface of the bottle cap (2) and used for hanging the negative pressure flow diverter; a check valve (15) is mounted on a connection pipe (16) connected to the vacuum motor (9).

9. The negative pressure flow diverter according to claim 8, characterized in that the power switch (13), the gear control switch (11) and the pressure indicator light (12) are externally displayed outside the bottle cap (2) through small holes arranged on the bottle cap (2).

10. The negative pressure flow diverter of claim 9, wherein the circuit board adds protection against reverse connection.

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