Portable negative pressure drainage device for preventing liquid from being sprayed out after bottle body falls down

Abstract

The utility model discloses a portable negative pressure drainage device capable of preventing liquid from being sprayed out after a bottle body falls down. The portable negative pressure drainage device comprises a suction end, an isolation type drainage bottle connected with the suction end and a negative pressure suction pump connected with the output end of the isolation type drainage bottle. The isolation type drainage bottle comprises a bottle body, a front-stage drainage tube connected with the suction end, a rear-stage negative pressure tube and a liquid blocking unit arranged in the bottle body and used for preventing liquid in the bottle from entering an input port of the rear-stage negative pressure tube. A negative pressure suction system is constructed by adopting the suction end, the isolation type drainage bottle and the negative pressure suction pump, and two stages of liquid blocking components are additionally arranged in the isolation type drainage bottle, so that the liquid is doubly guaranteed to be as little as possible or not splashed to the first air vent, and further not sucked out of the bottle by the negative pressure suction pump, and even if the bottle body shakes, laterally falls or completely overturns, the liquid cannot be sucked out of the bottle. The liquid blocking property can be guaranteed, and the technical problem that liquid is sprayed outwards due to the fact that a negative pressure suction device shakes, laterally falls or completely overturns on the way is effectively solved.

Description

Technical Field

[0001] The embodiments of the present utility model belong to the technical field of negative pressure drainage devices, and more specifically, relate to a portable negative pressure drainage device that prevents liquid from spraying out when the bottle body falls down. Background Technique

[0002] For example, after a patient undergoes Vacuum Assisted Closure (VSD) of a wound, the patient needs to be transported back, and usually needs to be observed for a period of time during waking up. If the negative pressure is interrupted, the wound will continue to ooze blood, affecting the treatment effect. Therefore, providing a negative pressure drainage device applied to the wound surface of a patient during transportation is of great significance in ensuring the normal treatment effect of the patient.

[0003] To solve the above technical problems, Chinese Utility Model Patent CN208911073U discloses a negative pressure management device for wound negative pressure treatment, including a wall negative pressure terminal, a negative pressure regulating valve, a negative pressure drainage bottle, a three-way solenoid valve, a timing relay, a pressure sensor, and a wound suction dressing. The output end of the wall negative pressure terminal is connected to the input end of the negative pressure regulating valve, the output end of the negative pressure regulating valve is connected to the input end of the negative pressure drainage bottle, the output end of the negative pressure drainage bottle is connected to the input end of the three-way solenoid valve, and the output end of the three-way solenoid valve is connected to the input end of the wound suction dressing; in addition, Chinese Utility Model CN201959108U discloses a wound negative pressure protection treatment instrument related to a wound negative pressure treatment device, which is composed of a control instrument, a negative pressure suction pump, a liquid collection bottle, a suction pipe, and a catheter. The negative pressure suction pump is communicated with the upper part of the liquid collection bottle through a negative pressure pipe, the upper part of the liquid collection bottle is communicated with the suction pipe buried in the dressing through a catheter, and a blood concentration sensor is also buried in the dressing. The control instrument is respectively connected to the negative pressure suction pump and the blood concentration sensor. The control instrument includes a data acquisition circuit, an analysis circuit, a storage circuit, an execution circuit, and a display circuit, and its panel includes a power switch, input digital keys, a digital display window, an alarm indicator light, and a buzzer.

[0004] The above patent technologies mainly constitute a systematic device for wound negative pressure drainage by sequentially arranging a wound suction dressing, a drainage bottle, and a negative pressure suction device, but there are still the following defects or areas for improvement: (1) In the above patent technologies, the negative pressure drainage bottle needs to be kept upright. If the drainage bottle falls over, the drained liquid will be sucked out of the drainage bottle by the negative pressure device, causing external cross-contamination; however, during the transportation of patients, the stable fixation of the negative pressure drainage bottle cannot be guaranteed, and it is easy to fall over. Therefore, ordinary drainage bottles are not suitable for the negative pressure suction work during transportation; (2) Regarding the technical problem that the liquid is sucked out due to the drainage bottle falling over, the method of taking liquid isolation means in the drainage bottle to prevent the liquid from being sucked out is more convenient and operable compared to the method of preventing the bottle body from falling over by positioning; however, none of the above patent technologies disclose relevant technical solutions. Summary of the Utility Model

[0005] In view of the above deficiencies or improvement requirements of the prior art, the present utility model provides a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down. By adopting a suction end, an isolation type drainage bottle, and a negative pressure suction pump to construct a negative pressure suction system, and adding two - stage liquid blocking components in the isolation type drainage bottle, it double - ensures that the liquid reaches the first ventilation port as little as possible or cannot reach it, and thus cannot be sucked out of the bottle by the negative pressure suction pump. Even if the bottle body shakes, topples to one side or completely overturns, it can ensure the liquid blocking property, effectively solving the technical problem that the negative pressure suction device shakes, topples to one side or completely overturns during the journey, resulting in liquid spraying out.

[0006] In order to achieve the above object, a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down includes:

[0007] A suction end, an isolation type drainage bottle connected to the suction end, and a negative pressure suction pump connected to the output end of the isolation type drainage bottle;

[0008] The isolation type drainage bottle includes a bottle body, a front - stage drainage tube connected to the suction end, a rear - stage negative pressure tube, and a liquid blocking unit disposed inside the bottle body and used to isolate the liquid in the bottle from entering the input port of the rear - stage negative pressure tube;

[0009] The side wall of the bottle body is in the shape of a conical side wall; the front - stage drainage tube includes a liquid outlet disposed at its lower end and located inside the isolation type drainage bottle; the rear - stage negative pressure tube includes a first ventilation port at its front end and a first liquid blocking end as a primary liquid blocking component to prevent the liquid from reaching the first ventilation port; the liquid blocking unit is a secondary liquid blocking component;

[0010] The first liquid blocking end is located at the vertical middle position of the liquid blocking unit.

[0011] Preferably, the front - stage drainage tube further includes an end - part diversion tube disposed at its lower end for setting the output end above a preset safe liquid level.

[0012] Preferably, the first liquid blocking end is a transverse port commutation tube, and the first ventilation port is located on the upper surface of the transverse port commutation tube.

[0013] Preferably, the first liquid blocking end is a first spherical liquid blocking end, and the surface of the first spherical liquid blocking end is evenly provided with ventilation holes.

[0014] Preferably, the liquid blocking unit includes:

[0015] An attached bottle fixedly connected to the upper part inside the bottle body and surrounding the first ventilation port, an intermediate ventilation tube disposed on the lower surface of the attached bottle for connecting the gas inside the bottle body and the gas inside the attached bottle, a second ventilation port disposed at the lower end of the intermediate ventilation tube, and a second liquid blocking end for preventing the liquid inside the bottle body from reaching the second ventilation port;

[0016] The upper end of the middle vent pipe is higher than the inner bottom surface of the attached bottle.

[0017] Preferably, the second liquid-blocking end is a second spherical liquid-blocking end, and ventilation holes are evenly arranged on the surface of the second spherical liquid-blocking end.

[0018] Preferably, the liquid blocking unit further includes:

[0019] A liquid leakage pipe provided on the lower surface of the liquid blocking unit, and the upper surface of the liquid leakage pipe is flush with the inner bottom surface of the attached bottle.

[0020] Preferably, the bottom shape of the attached bottle is a conical bottom.

[0021] Generally speaking, compared with the prior art, the above technical solutions conceived by the present invention can achieve the following beneficial effects:

[0022] (1) A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body is overturned. By adopting a suction end, an isolated drainage bottle, and a negative pressure suction pump to construct a negative pressure suction system, and adding two-stage liquid-blocking components in the isolated drainage bottle, it double-guarantees that the liquid is minimized or cannot reach the first ventilation port, and thus cannot be sucked out of the bottle by the negative pressure suction pump. Even if the bottle body shakes, tilts or is completely overturned, the liquid-blocking property can be ensured, effectively solving the technical problem that the liquid sprays out due to the shaking, tilting or complete overturning of the negative pressure suction device during the journey;

[0023] (2) A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body is overturned. By setting an end guide pipe, the end port of the front-stage drainage pipe in the bottle is higher than the preset safety liquid level, effectively preventing the technical problem that when the output port of the front-stage drainage pipe is located in the liquid, a large amount of gas rushes into the liquid, causing the liquid level to shake violently and splash, and reducing the probability of the liquid splashing into the input end of the liquid blocking unit;

[0024] (3) A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body is overturned. By adopting a horizontal port commutation pipe and setting the port on the side away from the liquid level, the probability of the liquid splashing into the first ventilation port is greatly reduced when the bottle body is not completely overturned. From the angle of the orientation of the conversion pipe orifice, liquid isolation is achieved to a certain extent;

[0025] (4) A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to the present utility model. By providing a first liquid-blocking end with a porous spherical shell, when liquid splashes onto the surface of the porous spherical shell, on the one hand, due to the large number of air inlets, the air holes blocked by the liquid do not prevent the external extraction of gas, so the suction force on the liquid splashing onto the surface of the porous spherical shell is small; on the other hand, the smooth structural characteristics of the spherical shell surface will accelerate the downward flow of the liquid along the spherical shell surface and finally return to the bottle body, reducing the residence time of the liquid on the spherical shell surface, thereby reducing the probability of the liquid being sucked to the first ventilation port and more effectively realizing liquid isolation. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall system structure of a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to an embodiment of the present utility model;

[0027] Figure 2 It is a schematic diagram of the overall structure of the first embodiment of the liquid blocking unit of a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to the present utility model;

[0028] Figure 3 It is a schematic diagram of the overall structure of the second embodiment of the liquid blocking unit of a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to the present utility model;

[0029] Figure 4 It is a schematic diagram of the overall structure of the third embodiment of the liquid blocking unit of a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to the present utility model;

[0030] Figure 5 It is a diagram of the inclined state of the liquid blocking unit of a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to an embodiment of the present utility model;

[0031] Figure 6 It is a schematic diagram of the overall structure of the fourth embodiment of the liquid blocking unit of a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to the present utility model;

[0032] Figure 7 It is a diagram of the overturned state of the liquid blocking unit of a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to the present utility model;

[0033] Figure 8 It is the second embodiment of the bottle body of a portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to the present utility model.

[0034] In all the drawings, the same reference numerals denote the same technical features, specifically: 1 - Isolated drainage bottle, 100 - Bottle body, 101 - Conical side wall, 110 - Front - stage drainage tube, 111 - End - part diversion tube, 112 - Liquid outlet, 120 - Rear - stage negative - pressure tube, 121 - First liquid - blocking end, 122 - First ventilation port, 123 - First spherical liquid - blocking end, 130 - Liquid blocking unit, 1301 - Conical bottom, 131 - Attached bottle, 132 - Second liquid - blocking end, 133 - Second ventilation port, 134 - Liquid leakage tube, 135 - Second spherical liquid - blocking end, 136 - Intermediate ventilation tube, 2 - Negative - pressure suction pump. Detailed implementation manners

[0035] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0037] In the present application, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the present utility model can be understood according to specific circumstances.

[0038] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0039] like Figures 1 to 8 As shown, in an embodiment of the utility model, the portable negative pressure drainage device for preventing liquid from spraying out after the bottle falls over comprises:

[0040] A suction end, an isolated drainage bottle 1 connected to the suction end, and a negative pressure suction pump 2 connected to an output end of the isolated drainage bottle 1;

[0041] The isolated drainage bottle 1 comprises a bottle body 100, a front-stage drainage tube 110 connected to the suction end, a rear-stage negative pressure tube 120, and a liquid blocking unit 130 disposed in the bottle body 100 and used to isolate the liquid in the bottle from entering the input port of the rear-stage negative pressure tube 120;

[0042] The side wall of the bottle body 100 is in the shape of a conical side wall 101; the front-stage drainage tube 110 includes a liquid outlet 112 disposed at its lower end and located in the isolated drainage bottle 1; the rear-stage negative pressure tube 120 includes a first vent 122 at its front end and a first liquid blocking end 121 that serves as a first-level liquid blocking component and blocks liquid from reaching the first vent 122; the liquid blocking unit 130 is a second-level liquid blocking component;

[0043] The first liquid blocking end 121 is located at a vertical middle position of the liquid blocking unit 130 .

[0044] In the embodiment of the utility model, a negative pressure suction system is constructed by adopting a suction end, an isolated drainage bottle, and a negative pressure suction pump, and a two-stage liquid-blocking component is added in the isolated drainage bottle, which doubles the guarantee that the liquid is minimized or cannot splash to the first vent, and thus cannot be sucked out of the bottle by the negative pressure suction pump. Even if the bottle body shakes, falls sideways or completely overturns, the barrier property to the liquid can be guaranteed, which effectively solves the technical problem of liquid spraying out due to shaking, falling sideways or completely overturning the negative pressure suction device during use.

[0045] like Figure 6 As shown, in the embodiment of the utility model, the front-stage drainage pipe 110 further includes: an end drainage pipe 111 arranged at its lower end for setting the output end above a preset safety liquid level.

[0046] In the embodiment of the utility model, by setting the end guide tube 111, one end of the front-stage drainage tube 110 in the bottle is higher than the preset safety liquid level, which effectively prevents the technical problem that a large amount of gas flows into the liquid when the output port of the front-stage drainage tube 110 is located in the liquid, causing the liquid surface to shake violently and splash, and reduces the probability of liquid splashing into the input end of the liquid blocking unit 130.

[0047] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7As shown, the first liquid-blocking end 121 is a transverse port reversing tube, and the first vent 122 is located on the upper surface of the transverse port reversing tube.

[0048] In the embodiment of the utility model, by arranging the port on the side away from the liquid surface, the probability of liquid splashing into the first vent 122 when the bottle body is not completely overturned is greatly reduced, and liquid isolation is achieved to a certain extent from the angle of the conversion tube mouth.

[0049] like Figure 3 and Figure 4 As shown, the first liquid-blocking end 121 is a first spherical liquid-blocking end 123 , and ventilation holes are evenly arranged on the surface of the first spherical liquid-blocking end 123 .

[0050] In the embodiment of the utility model, by setting the first liquid-blocking end 121 of the porous spherical shell, when liquid splashes to the surface of the porous spherical shell, on the one hand, due to the large number of air inlet holes, the air holes blocked by the liquid do not hinder the gas from being pumped out, so that the suction force on the liquid splashed to the surface of the porous spherical shell is relatively small; on the other hand, the smooth structural characteristics of the spherical shell surface will accelerate the liquid to flow down along the spherical shell surface and finally return to the bottle body 100, reducing the residence time of the liquid on the surface of the spherical shell, thereby reducing the probability of the liquid being sucked into the first vent 122, and more effectively realizing liquid isolation.

[0051] like Figures 2 to 4 As shown, in the embodiment of the present utility model, the liquid blocking unit 130 includes:

[0052] An auxiliary bottle 131 fixedly connected to the upper part of the bottle body 100 and surrounding the first vent 122, an intermediate vent pipe 136 provided on the lower surface of the auxiliary bottle 131 for connecting the gas inside the bottle body 100 and the gas inside the auxiliary bottle 131, a second vent 133 provided at the lower end of the intermediate vent pipe 136, and a second liquid blocking end 132 for preventing the liquid in the bottle body 100 from reaching the second vent 133;

[0053] The upper end of the middle ventilation pipe 136 is higher than the inner bottom surface of the attachment bottle 131 .

[0054] like Figure 3 and Figure 4 As shown, in the embodiment of the present utility model, the second liquid-blocking end 132 is a second spherical liquid-blocking end 135 , and ventilation holes are evenly arranged on the surface of the second spherical liquid-blocking end 135 .

[0055] like Figures 1 to 8 As shown, in the embodiment of the utility model, the liquid blocking unit 130 further includes: a liquid lower leakage pipe 134 provided on the lower surface of the liquid blocking unit 130 , and the upper surface of the liquid lower leakage pipe 134 is flush with the inner bottom surface of the attached bottle 131 .

[0056] As Figure 4 shown, in the embodiment of the present utility model, the bottom shape of the attached bottle 131 is a conical bottom 1301.

[0057] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down, characterized in that, Comprising: A suction end, an isolated drainage bottle (1) connected to the suction end, and a negative pressure suction pump (2) connected to the output end of the isolated drainage bottle (1); The isolated drainage bottle (1) includes a bottle body (100), a pre-stage drainage tube (110) connected to the suction end, a post-stage negative pressure tube (120), and a liquid blocking unit (130) disposed inside the bottle body (100) and used to isolate the liquid inside the bottle from entering the input port of the post-stage negative pressure tube (120); The side wall of the bottle body (100) is in the shape of a conical side wall (101); the pre-stage drainage tube (110) includes a liquid outlet (112) disposed at its lower end and located inside the isolated drainage bottle (1); the post-stage negative pressure tube (120) includes a first ventilation port (122) at its front end and a first liquid blocking end (121) serving as a primary liquid blocking component to prevent liquid from reaching the first ventilation port (122); the liquid blocking unit (130) is a secondary liquid blocking component; The first liquid blocking end (121) is located at the vertical middle position of the liquid blocking unit (130).

2. The portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to claim 1, characterized in that The pre-stage drainage tube (110) further includes: An end drainage tube (111) disposed at its lower end for setting the output end above a preset safe liquid level.

3. A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to any one of claims 1 or 2, characterized in that: The first liquid blocking end (121) is a transverse port commutating tube, and the first ventilation port (122) is located on the upper surface of the transverse port commutating tube.

4. A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to any one of claims 1 or 2, characterized in that: The first liquid blocking end (121) is a first spherical liquid blocking end (123), and the surface of the first spherical liquid blocking end (123) is evenly provided with ventilation holes.

5. A portable negative pressure drainage device for preventing liquid from spraying out when the bottle body falls down according to claim 1, characterized in that, The liquid blocking unit (130) includes: An attached bottle (131) fixedly connected to the upper part inside the bottle body (100) and surrounding the first ventilation port (122), an intermediate ventilation tube (136) disposed on the lower surface of the attached bottle (131) for communicating the gas inside the bottle body (100) with the gas inside the attached bottle (131), a second ventilation port (133) disposed at the lower end of the intermediate ventilation tube (136), and a second liquid blocking end (132) for preventing the liquid inside the bottle body (100) from reaching the second ventilation port (133); The upper end of the intermediate ventilation tube (136) is higher than the inner bottom surface of the attached bottle (131).

6. A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to claim 5, characterized in that: The second liquid blocking end (132) is a second spherical liquid blocking end (135), and the surface of the second spherical liquid blocking end (135) is evenly provided with ventilation holes.

7. A portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to any one of claims 5 or 6, characterized in that, The liquid blocking unit (130) further includes: A liquid leakage tube (134) disposed on the lower surface of the liquid blocking unit (130), and the upper surface of the liquid leakage tube (134) is flush with the inner bottom surface of the attached bottle (131).

8. The portable negative pressure drainage device for preventing liquid from spraying out after the bottle body falls down according to claim 7, wherein: The bottom shape of the attached bottle (131) is a conical bottom (1301).

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