Disposable integrated negative pressure suction machine

Abstract

The present invention discloses a disposable integrated negative pressure aspirator, which comprises a negative pressure aspirator in the upper part and a liquid storage bottle in the lower part. The negative pressure aspirator includes a housing, and the housing is divided into a battery area and a vacuum control area; a battery is arranged in the battery area, and a control panel of a control circuit is arranged in the vacuum control area. A control switch is arranged on the front surface of the control panel, a pressure sensor is arranged at the lower part of the side wall of the control panel, a vacuum pump is arranged on the back surface of the control panel, an air inlet of the vacuum pump is connected with an integrated pipeline, and the bottom end of the integrated pipeline is embedded into a negative pressure port on the bottom surface of the housing; a side pipe in the middle of the integrated pipeline is connected with the pressure sensor. The structure of the present invention is simple. The negative pressure aspirator and the liquid storage bottle are detachably and fixedly connected together through an internal integrated pipeline, without external pipeline connection, and the integrity of the equipment is good, improving the reliability of use.

Description

Technical Field

[0001] The present invention relates to a negative pressure suction machine, and more particularly to a disposable integrated negative pressure suction machine. Background Art

[0002] Clinically, negative pressure suction is often used to treat the wounds of patients. Its functions are as follows: sucking away exudate from the wound to help establish a liquid balance in the wound and reduce edema; bacteria are not easily viable under negative pressure, reducing the number of bacteria in the wound; accelerating blood circulation at the wound site and promoting the entry of new blood vessels into the wound.

[0003] Existing negative pressure drainage devices mainly include manual and electric types:

[0004] 1. Manual negative pressure drainage device

[0005] Commonly used manual negative pressure drainage devices on the market mainly include an elastic balloon, provided with an intake one-way valve for allowing air to enter the elastic balloon and an exhaust one-way valve for allowing air to exit the elastic balloon. One end of the intake one-way valve is connected to the elastic balloon, and the other end is connected to a liquid storage bottle. One end of the exhaust one-way valve is connected to the elastic balloon, and the other end is connected to the atmosphere. When in use, the air in the liquid storage bottle is exhausted by repeatedly compressing the elastic balloon, so as to generate negative pressure in the liquid storage bottle; when in use, the liquid storage bottle in a negative pressure state is connected to the wound dressing of the patient. There are the following defects in using the manual negative pressure drainage device:

[0006] On the one hand, manually pressing the balloon to generate negative pressure in the liquid storage bottle, the magnitude of the negative pressure in the liquid storage bottle is uncontrollable, and as the exudate of the patient is inhaled into the liquid storage bottle, the pressure of the liquid storage bottle drops, and it will not be able to meet the needs of the patient after a period of time.

[0007] On the other hand, the manual negative pressure drainage device generally requires repeated operations by the operator with a high frequency, which is troublesome to use; and limited by the structure and form, the stability and pressure holding performance of the negative pressure cannot be guaranteed, and the applicable range that can be dealt with is greatly limited.

[0008] 2. The electric negative pressure drainage device is a kind of negative pressure drainage system that is widely used in clinical practice at present. It mainly includes an electric negative pressure main unit, a liquid storage bottle, and a dressing. The electric negative pressure main unit mainly generates negative pressure electrically. The electric negative pressure main unit is connected to the negative pressure suction port on the liquid storage bottle. The liquid storage bottle is used to store the sucked exudate. The dressing is applied to the affected part of the patient, and the dressing is connected to the drainage port on the liquid storage bottle through a drainage tube. The liquid storage bottle and the main unit of the existing electric negative pressure drainage device are both designed with a split structure, and they need to be placed separately when in use. There are the following defects:

[0009] On the one hand, when the main unit and the liquid storage bottle are connected by a pipeline, there is a risk of detachment and air leakage;

[0010] On the other hand, the separate use of the host and the liquid storage bottle brings inconvenience to the operation during negative pressure drainage. The liquid storage bottle is prone to tipping over, affecting the use. In addition, most of the existing electric negative pressure drainage devices are reusable devices. After long-term use, the devices age and are prone to failure, affecting the use of patients. The cross-use of the devices is likely to cause infection risks.

[0011] In addition, the existing electric negative pressure drainage devices are large in overall volume and heavy in weight. During use, they are not easy to carry and the operation is troublesome, causing inconvenience to the normal movement of patients. Most disposable negative pressure drainers are passive devices with limited battery life and are not easy to operate. Summary of the Invention

[0012] In view of the defect that in the existing negative pressure suction machine with a liquid storage bottle, an external drainage tube is generally used for connection, and during use, there is a risk of air leakage due to the detachment and loosening of the drainage tube, and the drainage tube may also be bent, resulting in the blockage of the negative pressure suction machine; the present invention provides a disposable integrated negative pressure suction machine, which is mainly used for wound negative pressure drainage; it has the characteristics of simple structure, convenient operation, long battery life, accurate pressure control, and high reliability.

[0013] To achieve the above object, a disposable integrated negative pressure suction machine is provided, which includes a negative pressure suction machine in the upper part and a liquid storage bottle in the lower part. The negative pressure suction machine includes a housing, and the housing is divided into two regions, namely a battery region and a vacuum control region; a battery is arranged in the battery region, and a control panel of a control circuit is arranged in the vacuum control region. A control switch is arranged on the front surface of the control panel, and the control switch is arranged in a switch hole on the housing. A pressure sensor is arranged at the lower part of the side wall of the control panel.

[0014] A vacuum pump is arranged on the back surface of the control panel, and the positive and negative electrodes of the vacuum pump are connected to the two end electrodes of the battery; the air inlet of the vacuum pump is connected to the top end of an integrated pipeline. The integrated pipeline has a tee structure, and the bottom end of the integrated pipeline is embedded in a negative pressure port on the bottom surface of the housing; the middle side pipe of the integrated pipeline is connected to the pressure sensor (the integrated pipeline integrates the control circuit fixed inside the housing and the vacuum pump, and the negative pressure port at the tail end of the integrated pipeline is connected to the negative pressure connection pipe of the liquid storage bottle to form the entire negative pressure drainage system).

[0015] Further, a drainage port is arranged at the bottom of the liquid storage bottle, and the drainage port extends into the liquid storage bottle and is communicated with the inside of the liquid storage bottle;

[0016] The top surface of the liquid storage bottle is provided with a negative pressure connecting pipe and a water absorption boss, and a water absorption resin package (for absorbing the accumulated liquid in the bottle) is arranged inside the water absorption boss; the negative pressure connecting pipe is connected to the bottom end of the integrated pipeline (the integrated pipeline in the negative pressure suction machine integrates the control circuit fixed inside the housing and the vacuum pump, and the negative pressure port at the tail end of the integrated pipeline is connected to the negative pressure connecting pipe of the liquid storage bottle to form the entire negative pressure drainage system).

[0017] Furthermore, a groove is formed by the inward depression of a part of the bottom surface of the housing, and the water absorption boss is inserted into the groove (to ensure the stability of the connection between the liquid storage bottle and the housing).

[0018] Furthermore, a first valve is arranged on the inner wall of the top surface of the liquid storage bottle and the pipe orifice of the negative pressure connecting pipe, and a second valve is arranged on the pipe orifice of the drainage port in the liquid storage bottle (the first valve and the second valve are one-way filter valves integrated at the top end inside the bottle body to prevent liquid from entering the negative pressure suction machine, and the anti-backflow valve fixed at the bottom end inside the bottle body to prevent the liquid in the bottle from flowing back).

[0019] Furthermore, a battery compartment is arranged in the battery area, and the battery compartment includes a compartment body and a compartment cover; the compartment cover is snap-fitted on the housing.

[0020] Furthermore, the negative pressure suction machine is snap-fitted with the liquid storage bottle.

[0021] Furthermore, engaging grooves are arranged on the bottom shell wall of the housing, and cards for engaging and connecting with the engaging grooves are arranged at both ends of the bottom surface of the liquid storage bottle.

[0022] Furthermore, a one-way valve is arranged on the pipeline at the upper part of the integrated pipeline (for ensuring the sealing performance of the negative pressure drainage system, reducing the system pressure loss, and improving the endurance time of the overall system).

[0023] Advantages of the present invention:

[0024] 1. The structure of the present invention is simple. The negative pressure suction machine and the liquid storage bottle are detachably fixedly connected together through the internal integrated pipeline, without external pipeline connection, and the integrity of the device is good, improving the use reliability. Through the optimization of the structure, the overall size of the device is greatly reduced, and the weight of the device is reduced.

[0025] 2. The device of the present invention is a disposable device, reducing the risk of cross-infection of the negative pressure suction machine and also reducing the failure rate of the device;

[0026] 3. The drainage port of the device of the present invention is built-in, which avoids the contact between the pipeline and the outside world during use and ensures the sealing of the overall device; it solves the air leakage problem caused during the use of the device with an external drainage port. Most of the negative pressure suction machines on the market are large in size and heavy in weight, making them inconvenient to carry. The overall body of the device of the present invention is small and can be placed in the clothing pocket or tied to the arm, making it extremely easy to carry and facilitating the movement and normal life of the patient. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the whole disposable integrated negative pressure suction machine;

[0028] Figure 2 It is a cross-sectional view of the internal structure of the disposable integrated negative pressure suction machine;

[0029] Figure 3 It is an exploded schematic diagram of the parts assembly of the disposable integrated negative pressure suction machine;

[0030] Figure 4 It is a cross-sectional view of the liquid storage bottle of the disposable integrated negative pressure suction machine;

[0031] In the figure, the negative pressure suction machine 1, the housing 1.1, the switch hole 1.11, the groove 1.12, the engaging groove 1.13, the negative pressure port 1.2, the liquid storage bottle 2, the drainage port 2.1, the negative pressure connecting pipe 2.2, the water absorption boss 2.3, the card 2.4, the battery 3, the control panel 4, the control switch 5, the pressure sensor 6, the vacuum pump 7, the integrated pipeline 8, the one-way valve 8.1, the water absorption resin package 9, the first valve 10, the second valve 11, the battery compartment 12, the compartment body 12.1, the compartment cover 12.2. Detailed Embodiments

[0032] The following further describes the present invention in detail with specific embodiments for those skilled in the art to understand.

[0033] As Figures 1 to 4 shown in the disposable integrated negative pressure suction machine, it includes the negative pressure suction machine 1 in the upper part and the liquid storage bottle 2 in the lower part. The engaging groove 1.13 is provided on the bottom wall of the housing 1.1, and the cards 2.4 engagingly connected to the engaging groove 1.13 are provided at both ends of the bottom surface of the liquid storage bottle 2;

[0034] The negative pressure suction machine 1 includes the housing 1.1. The inside of the housing 1.1 is divided into two regions on the left and right, namely the battery region and the vacuum control region; the battery compartment 12 is provided in the battery region, and the battery compartment 12 includes the compartment body 12.1 and the compartment cover 12.2; the compartment cover 12.2 is snap-fitted on the housing 1.1; the battery 3 is provided in the battery compartment 12;

[0035] A control panel 4 with a control circuit is arranged in the vacuum control area. A control switch 5 is arranged on the front of the control panel 4. The control switch 5 is arranged in a switch hole 1.11 on the housing 1.1. A pressure sensor 6 is arranged at the lower part of the side wall of the control panel 4.

[0036] A vacuum pump 7 is arranged on the back of the control panel 4. The positive and negative electrodes of the vacuum pump 7 are connected to the two end electrodes of the battery 3. The air inlet of the vacuum pump 7 is connected to the top end of an integrated pipeline 8. The integrated pipeline 8 is of a tee structure. A one-way valve 8.1 is arranged on the pipeline at the upper part of the integrated pipeline 8. The bottom end of the integrated pipeline 8 is embedded in a negative pressure port 1.2 on the bottom surface of the housing 1.1. The middle side pipe of the integrated pipeline 8 is connected to the pressure sensor 6.

[0037] A drainage port 2.1 is arranged at the bottom of the liquid storage bottle 2, and the drainage port 2.1 extends into the liquid storage bottle 2 and is communicated with the inside of the liquid storage bottle 2. A second valve 11 is arranged at the pipe orifice of the drainage port 2.1 in the liquid storage bottle 2. A negative pressure connecting pipe 2.2 and a water absorption boss 2.3 are arranged on the top surface of the liquid storage bottle 2. A groove 1.12 is formed by the inward depression of a part of the bottom surface of the housing 1.1. The water absorption boss 2.3 is inserted into the groove 1.12, and a water absorption resin package 9 is arranged in the water absorption boss 2.3. The negative pressure connecting pipe 2.2 is connected to the bottom end of the integrated pipeline 8. A first valve 10 is arranged on the inner wall of the top surface of the liquid storage bottle 2 and at the pipe orifice of the negative pressure connecting pipe 2.2.

[0038] In the actual production process, the overall weight of the above-mentioned disposable integrated negative pressure suction machine does not exceed 120 g. The size is only 124x75x21 mm, and it can be easily put into a pocket, held in the hand, or tied to the patient's arm, which greatly facilitates the patient's carrying.

[0039] During the use of the above-mentioned disposable integrated negative pressure suction machine, there is a limit on the longest use duration. When the total device startup time exceeds 192 hours, the device will be forced to stop and stop using, which greatly reduces the failures caused by the aging of device components.

[0040] Other parts not described in detail are all prior arts. Although the above embodiments have described the present invention in detail, they are only a part of the embodiments of the present invention, rather than all embodiments. People can also obtain other embodiments according to this embodiment without creative efforts, and these embodiments all belong to the protection scope of the present invention.

Claims

1. A disposable integrated negative pressure aspirator, which comprises a negative pressure aspirator (1) in the upper part and a liquid storage bottle (2) in the lower part, and is characterized in that: The negative pressure suction machine (1) includes a housing (1.1). The interior of the housing (1.1) is divided into two areas, namely a battery area and a vacuum control area. A battery (3) is arranged in the battery area, and a control panel (4) of the control circuit is arranged in the vacuum control area. A control switch (5) is arranged on the front surface of the control panel (4), and the control switch (5) is arranged in a switch hole (1.11) on the housing (1.1). A pressure sensor (6) is arranged at the lower part of the side wall of the control panel (4). A vacuum pump (7) is arranged on the back surface of the control panel (4). The positive and negative electrodes of the vacuum pump (7) are connected to the two end electrodes of the battery (3). The air inlet of the vacuum pump (7) is connected to the top end of an integrated pipeline (8). The integrated pipeline (8) has a tee structure. The bottom end of the integrated pipeline (8) is embedded in a negative pressure port (1.2) on the bottom surface of the housing (1.1). The middle side pipe of the integrated pipeline (8) is connected to the pressure sensor (6). A drainage port (2.1) is arranged at the bottom of the liquid storage bottle (2), and the drainage port (2.1) extends into the liquid storage bottle (2) and is communicated with the inside of the liquid storage bottle (2). A negative pressure connecting pipe (2.2) and a water absorption boss (2.3) are arranged on the top surface of the liquid storage bottle (2). A water absorption resin package (9) is arranged in the water absorption boss (2.3). The negative pressure connecting pipe (2.2) is connected to the bottom end of the integrated pipeline (8). A first valve (10) is arranged on the inner wall of the top surface of the liquid storage bottle (2) and the pipe orifice of the negative pressure connecting pipe (2.2). A second valve (11) is arranged at the pipe orifice of the drainage port (2.1) in the liquid storage bottle (2). A battery compartment (12) is arranged in the battery area. The battery compartment (12) includes a compartment body (12.1) and a compartment cover (12.2). The compartment cover (12.2) is snap-fitted on the housing (1.1).

2. The disposable integrated negative pressure suction machine according to claim 1, characterized in that: A groove (1.12) is formed by inward depression of a part of the bottom surface of the housing (1.1), and the water absorption boss (2.3) is inserted into the groove (1.12).

3. The disposable integrated negative pressure suction machine according to claim 1, wherein: The negative pressure suction machine (1) is snap-fitted with the liquid storage bottle (2).

4. The disposable integrated negative pressure suction machine according to claim 3, characterized in that: Snap-fitting grooves (1.13) are arranged on the bottom shell wall of the housing (1.1), and cards (2.4) for mating connection with the snap-fitting grooves (1.13) are arranged at both ends of the bottom surface of the liquid storage bottle (2).

5. The disposable integrated negative pressure suction machine according to claim 3, characterized in that: A check valve (8.1) is arranged on the pipeline at the upper part of the integrated pipeline (8).

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