Medical negative pressure suction device

Abstract

The utility model provides a medical negative pressure suction device which comprises a negative pressure drainage tank with a negative pressure port and a drainage port, and the negative pressure port is connected with a negative pressure access hose; the negative pressure drainage device is characterized in that the drainage port is connected with a drainage main pipe, a suction inlet of the drainage main pipe is connected with a plurality of drainage branch pipes in parallel, and each drainage branch pipe is provided with a pressure regulating valve for regulating negative pressure. The drainage branch pipes connected in parallel are arranged and can be used for sucking endocrine of the airway, the subglottis, the oral cavity, the nasal cavity and the like respectively, each drainage branch pipe is provided with the pressure regulating valve, the corresponding drainage branch pipe can be closed at any time through the pressure regulating valve according to the actual situation of a patient, and the drainage branch pipes can be used for sucking the endocrine of the airway, the subglottis, the oral cavity, the nasal cavity and the like. The multiple drainage branch pipes can work at the same time or in a time-sharing mode, different use scenes are met, and practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the field of medical technology, and specifically relates to a medical negative pressure suction device. Background Art

[0002] The liquid collection bottle of the negative pressure suction device is generally provided with two hose interfaces, one of which is connected to the negative pressure terminal through the negative pressure hose, and the other is connected to the working chamber through the suction tube. When the negative pressure terminal is connected, air negative pressure will be generated in the liquid collection bottle, and the negative pressure will guide the dirt (such as dirty blood, sputum, etc.) to flow from the suction tube into the liquid collection bottle.

[0003] The commonly used negative pressure suction device has only one suction tube on the collection bottle, such as the high-efficiency negative pressure suction device disclosed in CN202211637108.2, the negative pressure suction device disclosed in CN202010457850.X, and the subcutaneous emphysema negative pressure suction device disclosed in CN201911028979.2, which can only suck out dirt from one place. When it is necessary to suck out foreign matter from multiple places, multiple collection bottles are generally prepared for switching, which is costly and the messy hoses are not beautiful.

[0004] Based on this, CN202120586866.0 discloses a three-way negative pressure suction device suitable for subglottic suction and sputum suction, which connects a conversion conductive piece to the drainage port, and realizes a negative pressure circulation pipeline through the conversion conductive piece, so that two actions with different effects can be operated in the same negative pressure drainage can, that is, subglottic flushing and suction. However, it can only conduct the sputum suction tube and the subglottic suction tube in a selective manner, and cannot perform sputum suction and subglottic suction at the same time, which limits its use. Utility Model Content

[0005] The utility model aims to solve the technical problems existing in the prior art, and the purpose of the utility model is to provide a medical negative pressure suction device.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a medical negative pressure suction device, comprising a negative pressure drainage tank having a negative pressure port and a drainage port, the negative pressure port being connected to a negative pressure access hose; the drainage port being connected to a drainage main pipe, the suction port of the drainage main pipe being connected in parallel to a plurality of drainage branch pipes, and each drainage branch pipe being provided with a pressure regulating valve for adjusting the size of the negative pressure.

[0007] The above technical solution, by setting up multiple drainage branches in parallel, the multiple drainage branches can be used for the absorption of endocrines from the airway, subglottis, oral cavity and nasal cavity respectively. Each drainage branch is provided with a pressure regulating valve. According to the actual situation of the patient, the corresponding drainage branch can be closed at any time through the pressure regulating valve, so that the multiple drainage branches can work simultaneously or in time-sharing, meeting different usage scenarios and improving practicality.

[0008] In a preferred embodiment of the present utility model, a storage box for storing pipes is also provided on the outer wall of the negative pressure drainage tank.

[0009] According to the above technical solution, when the suction device is not in use, the negative pressure access hose, drainage branch pipe and other pipes can be stored in the storage box to avoid cluttering the pipes and make them more beautiful.

[0010] In a preferred embodiment of the present invention, a storage box is provided on each side of the negative pressure drainage can.

[0011] In the above technical solution, the negative pressure access hose and the drainage branch pipe are respectively stored in the storage boxes on both sides, so that they can be stored nearby and more beautiful.

[0012] In a preferred embodiment of the present utility model, hanging ears are fixedly connected to both sides of the negative pressure drainage cup, and the negative pressure drainage cup can be hung by the hanging ears.

[0013] The above technical solution suspends the negative pressure drainage can by means of the hanging ears to prevent the negative pressure drainage can from tipping over.

[0014] In a preferred embodiment of the present utility model, the suction device further comprises a liquid level sensor for monitoring the liquid level of the negative pressure drainage tank.

[0015] The above technical solution uses a liquid level sensor to determine whether the liquid level of the negative pressure drainage can has reached a high warning level, so that medical staff can replace the suction device in time.

[0016] In another preferred embodiment of the present invention, a liquid level alarm is connected to the signal output end of the liquid level sensor.

[0017] In the above technical solution, when the liquid level of the negative pressure drainage can reaches the high warning level, the liquid level alarm will sound an alarm to remind medical staff to replace the suction device. Medical staff do not need to check the liquid level of the negative pressure drainage can, thereby reducing the labor intensity of medical staff.

[0018] In another preferred embodiment of the present invention, a negative pressure valve is provided on the negative pressure port or the negative pressure access hose, and a suction valve is provided at the drainage port or on the drainage main pipe.

[0019] The above technical solution, by providing a negative pressure valve and a suction valve, can prevent the negative pressure drainage tank from accidentally tipping over and causing the dirt therein to flow back to the negative pressure access hose and the drainage branch pipe.

[0020] In another preferred embodiment of the present invention, the suction valve is a suction one-way valve. In normal state, the suction one-way valve is in a closed state. Under the suction force of negative pressure, the suction one-way valve can be opened.

[0021] In the above technical solution, when secretions need to be sucked out, the suction one-way valve can be opened under the suction force of negative pressure. When there is no negative pressure suction, the suction one-way valve is automatically closed, and no manual operation is required, which is more convenient to use.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a schematic structural diagram of a medical negative pressure suction device according to an embodiment.

[0025] The figure marks in the drawings of the specification include: negative pressure drainage cup 10, negative pressure port 11, drainage port 12, negative pressure access hose 20, negative pressure valve 21, drainage main pipe 30, suction valve 31, drainage branch pipe 40, pressure regulating valve 41, diverter 50, storage box 60, hanging ear 70, liquid level sensor 80, liquid level alarm 90. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0029] The utility model provides a medical negative pressure suction device, such as Figure 1 As shown, in a preferred embodiment, the suction device includes a negative pressure drainage can 10 having a negative pressure port 11 and a drainage port 12, and the negative pressure drainage can 10 can be made of transparent plastic; the negative pressure port 11 and the drainage port 12 are arranged on the top of the negative pressure drainage can 10; the negative pressure port 11 is connected to the negative pressure access hose 20, preferably the two are threaded or snap-connected, the negative pressure access hose 20 is connected to the negative pressure device, and negative pressure is generated in the negative pressure drainage can 10 by suction. The drainage port 12 is connected to the drainage main pipe 30, the two are threaded or snap-connected, and the suction port of the drainage main pipe 30 is connected in parallel with multiple drainage branches 40, for example, the drainage main pipe 30 is connected to four drainage branches 40 through a diverter 50, and each drainage branch 40 is provided with a pressure regulating valve 41 for adjusting the negative pressure.

[0030] With this technical solution, four drainage branches 40 are arranged in parallel, and the four drainage branches 40 can be used to absorb secretions from the airway, subglottis, oral cavity and nasal cavity respectively. The negative pressure flowing through each drainage branch 40 is adjusted by the pressure regulating valve 41 on each drainage branch 40 to meet the suction requirements of different secretions; according to the actual situation of the patient, the corresponding drainage branch 40 can also be closed at any time by the pressure regulating valve 41, so that the four drainage branches 40 can work simultaneously or in different time periods.

[0031] In another preferred embodiment, a storage box 60 for storing pipes is further provided on the outer wall of the negative pressure drainage can 10, preferably a storage box 60 is provided on each side of the negative pressure drainage can 10. When the suction device is not in use, pipes such as the negative pressure access hose 20 and the drainage branch pipe 40 can be stored in the storage box 60 to avoid cluttering the pipes and make the appearance more beautiful.

[0032] Further preferably, the two sides of the negative pressure drainage cup 10 are also fixedly connected with hanging ears 70, and the negative pressure drainage cup 10 can be suspended by the hanging ears 70 to prevent the negative pressure drainage cup 10 from tipping over.

[0033] In another preferred embodiment, the suction device also includes a liquid level sensor 80 for monitoring the liquid level of the negative pressure drainage cup 10 (a laser liquid level sensor or an ultrasonic liquid level sensor can be used, and the liquid level sensor 80 is arranged at the top of the inside of the negative pressure drainage cup 10 and facing the bottom. Preferably, a laser liquid level sensor is used, such as the FMP55 model, and the connection circuit can adopt a universal connection method). The liquid level sensor 80 detects the liquid level and outputs an analog voltage signal. The liquid level sensor 80 detects the liquid level to know whether the liquid level of the negative pressure drainage cup 10 reaches the high warning level, so that medical staff can replace the suction device in time.

[0034] Further preferably, the signal output end of the liquid level sensor 80 is connected to the first input end of the comparator, the second input end of the comparator is connected to the voltage threshold, the output end of the comparator is connected to the base of the transistor, the collector of the transistor is grounded, and the emitter of the transistor is connected to the liquid level alarm 90, which can be arranged on the outer surface of the negative pressure drainage can 10. When the liquid level of the negative pressure drainage can 10 reaches the high warning liquid level, the liquid level alarm 90 sounds an alarm to remind medical staff to replace the suction device.

[0035] In another preferred embodiment, a negative pressure valve 21 is provided on the negative pressure port 11 or the negative pressure access hose 20, and a suction valve 31 is provided at the drainage port 12 or on the drainage main pipe 30 to prevent the negative pressure drainage tank 10 from accidentally tipping over and causing the dirt therein to flow back to the negative pressure access hose 20 and the drainage branch pipe 40. Further preferably, the suction valve 31 is a suction one-way valve. In normal conditions, the suction one-way valve is in a closed state. Under the suction force of negative pressure, the suction one-way valve can be opened without affecting the suction of secretions. When there is no negative pressure suction, the suction one-way valve is automatically closed without manual operation. The specific suction one-way valve can adopt existing technology, such as the one-way valve disclosed in CN202020488453.4 and the chest drainage bottle check valve disclosed in CN201520249382.1.

[0036] In the description of this specification, the description with reference to the terms "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A medical negative pressure suction device, comprising a negative pressure drainage tank having a negative pressure port and a drainage port, wherein the negative pressure port is connected to a negative pressure access hose; characterized in that: The drainage port is connected to a drainage main pipe, a suction port of the drainage main pipe is connected in parallel to a plurality of drainage branch pipes, and each drainage branch pipe is provided with a pressure regulating valve for adjusting the negative pressure.

2. A medical negative pressure suction device according to claim 1, characterized in that: A storage box for storing pipes is also provided on the outer wall of the negative pressure drainage tank.

3. A medical negative pressure suction device according to claim 2, characterized in that: A storage box is respectively arranged on both sides of the negative pressure drainage tank.

4. A medical negative pressure suction device according to claim 1, characterized in that: Hanging ears are also fixedly connected to both sides of the negative pressure drainage can, and the negative pressure drainage can can be hung through the hanging ears.

5. A medical negative pressure suction device according to any one of claims 1 to 4, characterized in that: Also included is a liquid level sensor for monitoring the liquid level in the negative pressure drainage tank.

6. A medical negative pressure suction device according to claim 5, characterized in that: The signal output end of the liquid level sensor is connected to a liquid level alarm.

7. A medical negative pressure suction device according to any one of claims 1 to 4, characterized in that: A negative pressure valve is provided on the negative pressure port or the negative pressure access hose, and a suction valve is provided at the drainage port or the drainage main pipe.

8. A medical negative pressure suction device according to claim 7, characterized in that: The suction valve is a suction one-way valve. In normal state, the suction one-way valve is in a closed state. Under the suction force of negative pressure, the suction one-way valve can be opened.

Images