CN219271715U - Portable negative pressure drainage device - Google Patents

Abstract

The utility model belongs to the technical field of negative pressure drainage, and particularly relates to a portable negative pressure drainage device, wherein a base of a cavity structure is fixedly arranged at the bottom of a negative pressure bottle, a drainage valve and an exhaust valve are respectively and fixedly arranged at two sides of the upper part of the negative pressure bottle, a control and indication window is arranged on the front side surface of the base, a protection bin is arranged in the negative pressure bottle, an air hole is arranged on the horizontal upper bin wall of the protection bin, a negative pressure detection connecting pipe and an exhaust pipe are vertically arranged in the protection bin, the lower end part of the negative pressure detection connecting pipe is fixedly connected with a negative pressure sensor in the cavity structure of the base, the negative pressure sensor is electrically connected with a control board, the exhaust pipe is connected with a one-way valve in the cavity structure of the base, the tail end of the exhaust pipe is connected with a vacuum pump in the cavity structure of the base, and the position of the control board corresponds to the control and indication window. The utility model realizes real automatic continuous negative pressure, is convenient to carry and move and is more convenient; and the negative pressure value is accurately regulated and controlled, and the negative pressure drainage and the gravity drainage are integrally designed.

Description

Portable negative pressure drainage device

Technical Field

The utility model belongs to the technical field of negative pressure drainage, and particularly relates to a portable negative pressure drainage device.

Background

In surgery and after surgery, a negative pressure suction device is often needed to drain the effusion such as blood, pus, flushing fluid and the like in the body or on a wound out of the body, firstly, the effusion is timely discharged in the surgery, the surgery field can be clear, the surgery accuracy is improved, and the surgery time is shortened; secondly, effusion is removed in time after the operation, so that the wound healing can be promoted, and the postoperative infection risk is reduced.

At present, the postoperative drainage commonly used device is a disposable drainage bag, a disposable medical negative pressure suction ball or a hospital central negative pressure suction system. However, the drainage bag does not have a negative pressure suction function; the disposable negative pressure suction ball cannot continuously generate negative pressure and cannot observe the magnitude of the negative pressure in the ball; when the central negative pressure suction system of the hospital is used for negative pressure suction, the negative pressure suction is required to be carried out through the negative pressure suction terminal positioned on the wall, so that the patient can only lie on the sickbed after operation, the patient is limited to get off the bed, and the postoperative rehabilitation of the patient is not facilitated.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a portable electric negative pressure adjustable drainage device which realizes innovations of continuous negative pressure suction, portability, monitoring of negative pressure and the like. The technical scheme adopted by the utility model is as follows:

a portable negative pressure drainage device comprising: the negative pressure bottle, the base of bottom fixed mounting cavity structure at the negative pressure bottle, fixed mounting drainage valve and discharge valve respectively in the upper portion both sides of negative pressure bottle, drainage valve and discharge valve link up with the inner chamber upper portion of negative pressure bottle, set up control and instruction window at the leading flank of base, the one end of fluid-discharge tube is located the negative pressure bottle outside and passes through the protection cap shutoff, the other end of fluid-discharge tube passes base fixed mounting in cavity structure to link up with the inner chamber bottom of negative pressure bottle, set up the protection storehouse in the inside of negative pressure bottle, the protection storehouse is located the below of discharge valve, the vertical side storehouse wall of protection storehouse highly is less than the height of negative pressure bottle body, set up the air vent on the horizontal upper storehouse wall of protection storehouse, the inside vertical installation in protection storehouse has negative pressure detection connecting pipe and exhaust tube, the upper end of negative pressure detection connecting pipe and exhaust tube and the horizontal upper storehouse wall of protection storehouse leave the clearance between, the lower tip of negative pressure detection connecting pipe and exhaust tube passes the bottom of negative pressure bottle body, the lower tip and the negative pressure sensor fixed connection in the base cavity structure in negative pressure sensor in the negative pressure sensor cavity structure, the negative pressure sensor is connected with the exhaust tube electrical property control panel and the base in the corresponding cavity structure of exhaust valve and exhaust tube, the control panel.

Preferably, the negative pressure bottle comprises a negative pressure bottle body and a negative pressure bottle cap, wherein the negative pressure bottle body is of a cylindrical structure with an upper opening closed at the lower part, the negative pressure bottle cap is fixedly arranged at the upper part of the negative pressure bottle body, and a sealing gasket is arranged between the negative pressure bottle cap and the negative pressure bottle body.

Preferably, the drainage valve is of a three-way structure, comprising: the first drainage mouth, second drainage mouth and third drainage mouth, the third drainage mouth passes the upper portion of negative pressure bottle lid and negative pressure bottle body and link up, and the third drainage mouth designs to funnel-shaped structure, and first drainage mouth and third drainage mouth reverse setting, the second drainage mouth sets up in the side, is obtuse angle structure between second drainage mouth and the first drainage mouth.

Preferably, an inclined slope is arranged above the second drainage port and below the first drainage port.

Preferably, the exhaust valve comprises an exhaust port, an exhaust cap and a first ventilated membrane, the exhaust port is arranged on the negative pressure bottle cap, the lower part of the exhaust port is communicated with the upper part of the negative pressure bottle body, and the first ventilated membrane is fixedly arranged at the lower part of the exhaust port.

Preferably, the base is formed by clamping a rear base and a front base, the side panels of the rear base and the front base are arc-shaped panels, the rear base is provided with an upper panel and a lower panel, the upper panel of the rear base is provided with an opening communicated with the bottle pressing body, the lower panel of the rear base is provided with a bolt hole corresponding to the front base, the vacuum pump is fixedly arranged in a cavity between the upper panel and the lower panel, the battery bin is fixedly arranged on one side of the vacuum pump, and the side panel of the rear base is provided with a groove matched with the clamping structure; the front base is provided with the lower border, offer the bolt hole corresponding with the lower panel of back base on the lower border, and front base side board is provided with joint structure, and control panel fixed mounting is in the medial surface of front base.

Preferably, the hanging sling is fixedly installed at the middle position of the upper part of the negative pressure bottle, the drainage bag clamp is fixedly installed on the side surface of the negative pressure bottle, the battery bin cover is fixedly installed on the rear side surface of the base, the vertical groove is formed in the rear side surface of the base, the fixing clamp is arranged on the upper part of the vertical groove, and the through hole is formed in the lower part of the vertical groove.

Preferably, the bottom liquid outlet position of the drainage bag is provided with a cross liquid discharge valve, the bag body of the drainage bag is provided with a second breathable film, the upper part of the drainage bag is provided with a binding belt, the upper liquid inlet position of the drainage bag is provided with a connecting pipe, the connecting pipe is provided with a connecting pipe clamp, and the upper end part of the connecting pipe is provided with a luer male connector.

Preferably, the drainage tube comprises first drainage tube and second drainage tube, installs drainage three way connection between first drainage tube and the second drainage tube, and drainage three way connection comprises two inlet and a liquid outlet of mutual intercommunication, and two inlet department fixed mounting circular check valve, cover protective cap above the inlet.

Preferably, the control panel is provided with a work indicator light, a fault light, a low-power light, a pressurizing key, a depressurizing key, a switching key and a display screen.

The utility model has the beneficial effects that:

(1) Electric negative pressure: realizing real automatic continuous negative pressure, the machine body is small and exquisite, and is convenient to carry and move.

(2) Accurate regulation and control negative pressure value: the traditional manual pressure control is inaccurate, the pressure in the bottle cannot be observed in real time, and the negative pressure is possibly too low or too high due to inaccurate pressure, so that adverse effects are caused; the device is through automatic accuse pressure system, accurate accuse pressure, and the bottle internal pressure passes through the display screen and shows in real time.

(3) Negative pressure drainage and gravity drainage are integrally designed: in the early stage of operation, the drainage quantity is large, negative pressure drainage is not needed, and gravity drainage can be selected; in the middle and later stages of operation, negative pressure drainage is adopted; solves the problem of inconvenience and easy infection caused by repeated replacement.

(4) The unique safe bin design prevents liquid from being sucked into the negative pressure suction system after pouring, and the function is disabled.

(5) The design of liquid discharge is easy to discharge when the liquid in the bottle is too much, and medical waste classification treatment after use is convenient.

(6) The environment-friendly ABS material has high environmental protection performance and high utilization rate, and can recycle the raw material ABS, thereby reducing pollution.

Drawings

Fig. 1 is a front view of a negative pressure suction apparatus according to a first embodiment of the present utility model;

fig. 2 is a rear view of a negative pressure suction apparatus according to a first embodiment of the present utility model;

FIG. 3 is an internal perspective view of a negative pressure suction device according to a first embodiment of the present utility model;

fig. 4 is a schematic perspective view of a rear base according to a first embodiment of the present utility model;

fig. 5 is a schematic perspective view of a front base according to a first embodiment of the present utility model;

FIG. 6 is a schematic view of a drainage bag according to a first embodiment of the present utility model;

FIG. 7 is a schematic view of a drainage three-way joint according to a second embodiment of the present utility model;

FIG. 8 is a schematic diagram of a control board structure according to a third embodiment of the present utility model;

in the figure, 1 is a negative pressure bottle, 2 is a base, 3 is a drainage valve, 4 is a drainage bag clamp, 5 is an exhaust valve, 6 is a hanging sling, 7 is a control and indication window, 8 is a battery compartment cover, 9 is a drain pipe, 10 is a vertical groove, 11 is a negative pressure bottle body, 12 is a negative pressure bottle cover, 13 is a first drainage port, 14 is a second drainage port, 15 is a third drainage port, 16 is a luer female connector, 17 is an inclined slope, 18 is an exhaust cap, 19 is a first ventilation film, 20 is a protection bin, 21 is a negative pressure detection connecting pipe, 22 is an exhaust pipe, 23 is a one-way valve, 24 is a negative pressure sensor, 25 is a vacuum pump, 26 is a rear base, 27 is a front base, 28 is a clamping structure, 29 is a control board, 30 is a drainage bag, 31 is a cross drain valve, 32 is a second ventilation film, 33 is a connecting pipe clamp, 34 is a luer male connector, 35 is a first drainage pipe, 37 is a second drainage port, 38 is a circular one-way valve, 39 is a protection cap, 40 is a work indicator lamp, 41 is a work indicator lamp, 23 is a pressure-reducing switch, 43 is a pressure-reducing switch, 46 is a pressure-reducing switch, and 44 is a pressure-reducing screen.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and complete in conjunction with the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the present utility model.

Example 1

As shown in fig. 1, a front view of a negative pressure suction device according to a first embodiment of the present utility model is shown; as shown in fig. 2, a back view of the negative pressure suction device according to the first embodiment of the present utility model is shown. A portable negative pressure drainage device comprising: the negative pressure bottle 1 is provided with scale marks on the bottle body at the front side surface of the negative pressure bottle 1, including but not limited to 400ml. The base 2 of the cavity structure is fixedly arranged at the bottom of the negative pressure bottle 1, the drainage valve 3 and the exhaust valve 5 are respectively and fixedly arranged at two sides of the upper part of the negative pressure bottle 1, the drainage valve 3 and the exhaust valve 5 are communicated with the upper part of the inner cavity of the negative pressure bottle 1, the hanging strip 6 is fixedly arranged at the middle position of the upper part of the negative pressure bottle 1, and the negative pressure drainage device can be hung and used through the hanging strip 6 according to the requirement. A drainage bag clamp 4 is fixedly arranged on the side surface of the negative pressure bottle 1, and a standby drainage bag 30 is placed in the drainage bag clamp 4. The front side surface of the base 2 is provided with a control and indication window 7, the negative pressure pump is started and the pressure is regulated through keys corresponding to the control and indication window 7, the working state is displayed through an indication lamp, and the current negative pressure value is displayed through a display screen. The battery bin cover 8 is fixedly arranged on the rear side face of the base 2, the battery bin cover 8 is used for plugging a battery bin, and a battery is arranged in the battery bin. The back side of the base 2 is provided with a vertical groove 10, the upper part of the vertical groove 10 is provided with a fixing clamp, the lower part of the vertical groove 10 is provided with a through hole, one end of the liquid discharge pipe 9 is plugged by a protective cap with a hanging rope and is clamped in the fixing clamp, the open other end of the liquid discharge pipe 9 penetrates through the through hole of the vertical groove and is fixedly arranged in a cavity structure of the base 2 and is communicated with the bottom of an inner cavity of the negative pressure bottle 1, a liquid discharge port at the bottom of the inner cavity of the negative pressure bottle 1 is slightly concave, liquid discharge is facilitated, a pipe clamp is arranged at the position, close to the protective cap, of the liquid discharge pipe 9, liquid discharge can be blocked or restored at any time, the liquid discharge pipe 9 is used for leading out liquid in the negative pressure bottle 1, firstly, the plugging end of the liquid discharge pipe 9 is taken out from the fixing clamp, the protective cap is taken down, the liquid discharge pipe 9 is communicated with the drainage bag 30, the pipe clamp is loosened, the exhaust valve 5 is opened, and the liquid in the negative pressure bottle 1 can smoothly flow into the drainage bag 30.

As shown in fig. 3, a perspective view of the internal structure of the negative pressure suction device according to the first embodiment of the present utility model is shown. The negative pressure bottle 1 include negative pressure bottle body 11 and negative pressure bottle lid 12, negative pressure bottle body 11 preferably adopts transparent material to conveniently observe inside liquid condition, negative pressure bottle body 11 is lower part shutoff upper portion open-ended tubular structure, generally sets up to take square section of thick bamboo of certain radian, negative pressure bottle lid 12 fixed mounting is in the upper portion of negative pressure bottle body 11, the upper portion of negative pressure bottle body 11 and the lower part accessible bonding mode of negative pressure bottle lid 12 are connected, also accessible buckle mode is connected, can be provided with sealed pad between the two.

The drainage valve 3 is of a three-way structure, and comprises: a first vent 13, a second vent 14 and a third vent 15. The third drainage port 15 penetrates through the negative pressure bottle cap 12 and is communicated with the upper portion of the negative pressure bottle body 11, and the third drainage port 15 is designed to be of a funnel-shaped structure, so that liquid cannot remain in the drainage valve 3. The first drainage port 13 and the third drainage port 15 are reversely arranged, the second drainage port 14 is arranged on the side face, an obtuse angle structure is formed between the second drainage port 14 and the first drainage port 13, the second drainage port 14 is inclined downwards, the luer female connector 16 is fixedly arranged in the first drainage port 13, the luer male connector and the luer female connector 16 at the end part of the drainage tube are subjected to drainage operation, the second drainage port 14 is sealed and blocked by a cap, negative pressure is generated in the negative pressure bottle 1, and liquid is drained into the negative pressure bottle body 11 in a negative pressure mode. Considering that more liquid exists in practical application, gravity drainage without negative pressure can be performed, so that inclined slopes 17 with certain gradients are arranged above the second drainage port 14 and below the first drainage port 13, the drainage bag 30 is connected with the second drainage port 14, no negative pressure exists in the negative pressure bottle 1 at this time, and liquid can be automatically shunted into the drainage bag 30 along the inclined slopes 17 under the action of gravity; likewise, the drain bag 30 and the second drain port 14 may be connected to a female luer connector by a male luer connector. The first conduction vent 13 and the second conduction vent 14 are sealed and protected by a cap when not in use.

The exhaust valve 5 comprises an exhaust port, an exhaust cap 18 and a first ventilated membrane 19, the exhaust port is arranged on the negative pressure bottle cap 12, the lower part of the exhaust port is communicated with the upper part of the negative pressure bottle body 11, the first ventilated membrane 19 is fixedly arranged at the lower part of the exhaust port, the first ventilated membrane 19 has the function of water resistance and bacteria resistance, the exhaust cap 18 is a cap with a hanging rope, and the exhaust cap 18 is used for sealing and blocking an opening at the upper part of the exhaust port. In some cases, such as when it is necessary to drain the liquid from the negative pressure bottle body 11, the venting cap 18 may be removed to empty the negative pressure bottle 1 from the negative pressure bottle body 11, and quickly drain the liquid from the negative pressure bottle body 11.

The inside at negative pressure bottle 1 sets up protection storehouse 20, and protection storehouse 20 is located the below of discharge valve 5, and the height of the vertical side storehouse wall of protection storehouse 20 is slightly less than the height of negative pressure bottle body 11, and the gas passing hole is seted up on the horizontal upper storehouse wall of protection storehouse 20, and the gas passing hole communicates with negative pressure bottle body 11, and negative pressure detection connecting pipe 21 and exhaust tube 22 are vertically installed to the inside of protection storehouse 20, and protection storehouse 20 is used for stopping liquid pollution negative pressure detection connecting pipe 21 and exhaust tube 22. A gap of about 0.3mm is left between the upper end parts of the negative pressure detection connecting pipe 21 and the exhaust pipe 22 and the lower surface of the horizontal upper bin wall of the protection bin 20, so that liquid can be prevented from flowing into the negative pressure detection connecting pipe 21 and the exhaust pipe 22 as much as possible; the lower end parts of the negative pressure detection connecting pipe 21 and the exhaust pipe 22 penetrate through the bottom of the negative pressure bottle body 11, the negative pressure detection connecting pipe 21 is fixedly connected with a negative pressure sensor 24 in a cavity structure of the base 2, the negative pressure sensor 24 is electrically connected with a control board 29, and the pressure value in the negative pressure bottle body 11 can be obtained through the negative pressure sensor 24; the exhaust tube 22 is firstly connected with the one-way valve 23 in the cavity structure of the base 2, the one-way valve 23 is used for preventing reverse infection, the tail end of the exhaust tube 22 is connected with the vacuum pump 25 in the cavity structure of the base 2, and negative pressure in the negative pressure bottle body 11 can be realized by pumping negative pressure through the vacuum pump 25. Through the design of protection storehouse 20, in case the condition that negative pressure drainage device inclines or rocks appears, can take advantage of the situation to be hit back after the storehouse wall of liquid striking protection storehouse 20, can not influence the pressure suction, the pumping/monitoring function is gone on through the body in the protection storehouse 20, has the gap between body and the protection storehouse 20 upper wall, is equipped with a plurality of air passing holes on the horizontal upper storehouse wall of protection storehouse 20 simultaneously, and the bottle slope can not cause the functional influence to the product this moment, and liquid can not directly get into in the body.

Fig. 4 is a schematic perspective view of a rear base according to a first embodiment of the present utility model; fig. 5 is a schematic perspective view of a front base according to a first embodiment of the present utility model. The base 2 is formed by clamping a rear base 26 and a front base 27, and side panels of the rear base 26 and the front base 27 are arc-shaped panels. The rear base 26 is provided with top panel and lower panel, and the top panel of rear base 26 is provided with the trompil that communicates with pressing bottle body 11, and the lower panel of rear base 26 is provided with the bolt hole corresponding with preceding base 27, further passes through bolt-up after rear base 26 and the preceding base 27 joint, and vacuum pump 25 fixed mounting is in the cavity between top panel and lower panel, and battery compartment (not shown in fig. 4) fixed mounting can place two 5 batteries in the battery compartment in one side of vacuum pump 25, also can adopt the power supply scheme of three No. 7 batteries, and the side board of rear base 26 is provided with the recess with joint structure 28 matched with. The front base 27 is provided with the lower border, offer the bolt hole corresponding with the lower panel of back base 26 on the lower border, and front base 27 side board is provided with joint structure 28, and control panel 29 fixed mounting is in the medial surface of front base 27, and control panel 29's button, pilot lamp and display screen correspond with the position of windowing of control and instruction window 7. The control board 29 and the front base 27 may be connected by a fixing column, may be hot-melt or screw-connected, or may be made into a buckle.

Fig. 6 is a schematic structural view of a drainage bag according to a first embodiment of the present utility model. The bottom of drainage bag 30 go out liquid position and be provided with cross flowing back valve 31, through opening cross flowing back valve 31 and make things convenient for flowing back, set up second ventilated membrane 32 on the bag body of drainage bag 30, prevent to rise the bag, the upper portion of drainage bag 30 sets up bandage 33 for hang drainage bag 30, the upper portion of drainage bag 30 advances the liquid and is provided with the connecting pipe, sets up on the connecting pipe and connects pipe clamp 34, is convenient for turn off the connecting pipe at any time, the upper end of connecting pipe sets up luer male connector 35 for connect luer female 16 connects, facilitate connection and medical waste's processing.

Example two

In the second embodiment of the present utility model, the connection structure between the first drainage port 13 and the drainage tube in the first embodiment is further improved.

Fig. 7 is a schematic structural diagram of a drainage three-way joint according to a second embodiment of the present utility model. The drainage tube comprises a first drainage tube 36 and a second drainage tube 37, a drainage three-way joint is arranged between the first drainage tube 36 and the second drainage tube 37, the drainage three-way joint comprises two liquid inlets and a liquid outlet which are mutually communicated, a circular one-way valve 38 is fixedly arranged at the two liquid inlets, the circular one-way valve 38 is used for preventing retrograde infection, and one liquid inlet is used as a protective cap 39 sleeved on the standby liquid. One end of the second drainage tube 37 is connected with a liquid outlet of the drainage three-way joint through a luer joint, the other end of the second drainage tube 37 is connected with the first drainage port 13 through the luer joint, one end of the first drainage tube 36 is connected with a liquid inlet of the drainage three-way joint through the luer joint, the other end of the first drainage tube 36 is used for drainage, the first drainage tube 36 and the second drainage tube 37 can be made of PVC, silica gel, PU and other materials, the drainage front end of the first drainage tube 36 can be round, cross-shaped hollow, cross-shaped reinforced, cross-shaped hollow reinforced and the like, and a plurality of drainage holes can be formed. The second drainage tube 37 is provided with a tube clamp. The protective cap 39 can be removed when the standby liquid inlet of the drainage three-way joint is needed, and then a drainage tube is connected for simultaneous drainage.

Example III

The third embodiment of the utility model is a further improvement of the control board in the first embodiment.

Fig. 8 is a schematic diagram of a control board structure according to a third embodiment of the utility model. The control board 29 is provided with a negative pressure sensor 24, and the control board 29 is provided with a work indicator light 40, a fault light 41, a low-power light 42, a pressurizing key 43, a depressurizing key 44, a switching key 45 and a display screen 46. An operation indicator lamp 40 which blinks (green) when the vacuum pump 25 is operated; a failure lamp 41 which is normally on (orange yellow) when air leakage occurs and the operation is time-out; a low power lamp 42 that is normally on (blue) when it detects a battery level below 1.1 v; the pressurizing key 43, the depressurizing key 44 and the switch key 45 integrate startup, shutdown, pause and startup, and are convenient to operate; the display screen 46 may display the negative pressure value and display the fault condition. The specific circuit structure of the control board 29 for realizing the above functions is the prior art and will not be described herein.

Normal operation:

after the switch button 45 is pressed for a long time after the power is on, the negative pressure control device is started, the default preset pressure is minus 20kpa at this moment, if the preset pressure is changed, the default stored preset pressure (considering the situation of battery replacement or processing fault suspension) is default, if a user needs a higher negative pressure value, the user can reach the required negative pressure value by clicking or pressing the pressing button 43 for a long time, when the negative pressure value is changed, the pressure value flashes to highlight, the pressing button 43 is released, if the selection is not made, the default display is successful after 3 seconds, and then the vacuum pump 25 pumps the current pressure to be equal to the preset pressure. If the switch button 45 is clicked after the pressurizing button 43 is released, the default trigger is started, and the vacuum pump 25 is directly started to pump the current pressure to be equal to the preset pressure. The pressure-reducing key 44 is operated in a similar manner if the user desires to reduce the negative pressure. In the use process, the switch key 45 is clicked to realize pause, and the switch key is clicked again to realize start.

When the vacuum pump 25 starts to operate, the green operation indicator lamp 40 blinks, and when the preset pressure is reached, the vacuum pump 25 stops operating. The pressure in the flask gradually loses over time and when the pressure falls below a default lower limit of the preset pressure, the vacuum pump 25 is restarted.

Negative pressure value adjustment interval: -5 to-50 kpa.

Abnormal operation:

(1) low battery when the vacuum pump 25 is operating, the low battery lamp 42 is on when the default battery level is low.

(2) The failure lamp 41 is lighted as a cause: when the vacuum pump 25 starts to operate, whether the air leakage occurs or not is detected by the negative pressure sensor 24, and when the air leakage is large (the situation such as the falling of a catheter caused by misoperation), the fault lamp 41 (blue) is turned on, the vacuum pump 25 stops operating, the pollution in the bottle is prevented, the infection risk exists, the display screen 46 displays the air leakage fault and is suspended, and the negative pressure bottle 1 can be replaced at the moment.

(3) The failure lamp 41 is lighted as a cause: the run time out, the vacuum pump 25 is currently set to the single longest run time, the fault light 41 is turned on after the run time out, the low power light 42 is turned on, and the screen displays "run time out, suspended".

Claims (10)

1. Portable negative pressure drainage device, its characterized in that includes: the negative pressure bottle (1), base (2) of the bottom fixed mounting cavity structure of negative pressure bottle (1), upper portion both sides at negative pressure bottle (1) are fixed mounting drainage valve (3) and discharge valve (5) respectively, drainage valve (3) and discharge valve (5) link up with the inner chamber upper portion of negative pressure bottle (1), offer control and instruction window (7) at the leading flank of base (2), the one end of fluid-discharge tube (9) is located negative pressure bottle (1) outside and through the shutoff of protecting cap, the other end of fluid-discharge tube (9) passes base (2) fixed mounting in cavity structure to link up with the inner chamber bottom of negative pressure bottle (1), set up protection storehouse (20) in the inside of negative pressure bottle (1), protection storehouse (20) are located the below of discharge valve (5), the height of the vertical side storehouse wall of protection storehouse (20) is less than the height of negative pressure bottle body (11), set up the gas vent on the horizontal upper storehouse wall of protection storehouse (20), the inside of protection storehouse (20) is vertical installs negative pressure detection connecting pipe (21) and exhaust tube (22) and exhaust tube (21) and exhaust tube (22) are held down between the tip of the upper end of the vacuum detection connecting pipe (21) and the negative pressure of the upper portion of the vacuum bottle (20) and the exhaust tube (20), the lower end of the negative pressure detection connecting pipe (21) is fixedly connected with a negative pressure sensor (24) in the cavity structure of the base (2), the negative pressure sensor (24) is electrically connected with a control board (29), the exhaust pipe (22) is connected with a one-way valve (23) in the cavity structure of the base (2), the tail end of the exhaust pipe (22) is connected with a vacuum pump (25) in the cavity structure of the base (2), and the position of the control board (29) corresponds to the control and indication window (7).

2. The portable negative pressure drainage device according to claim 1, wherein the negative pressure bottle (1) comprises a negative pressure bottle body (11) and a negative pressure bottle cap (12), the negative pressure bottle body (11) is of a cylindrical structure with an upper opening closed at the lower part, and the negative pressure bottle cap (12) is fixedly arranged at the upper part of the negative pressure bottle body (11) and is provided with a sealing gasket therebetween.

3. The portable negative pressure drainage device according to claim 2, wherein the drainage valve (3) has a three-way structure, comprising: the first drainage mouth (13), the second drainage mouth (14) and the third drainage mouth (15), third drainage mouth (15) pass negative pressure bottle lid (12) and link up with the upper portion of negative pressure bottle body (11), and third drainage mouth (15) design is funnel-shaped structure, and first drainage mouth (13) and third drainage mouth (15) reverse setting, and second drainage mouth (14) set up in the side, are obtuse angle structure between second drainage mouth (14) and the first drainage mouth (13).

4. A portable negative pressure drainage device according to claim 3, characterized in that an inclined ramp (17) is provided above the second drainage port (14) and below the first drainage port (13).

5. The portable negative pressure drainage device according to claim 2, wherein the exhaust valve (5) comprises an exhaust port, an exhaust cap (18) and a first ventilated membrane (19), the exhaust port is arranged on the negative pressure bottle cap (12), the lower part of the exhaust port is communicated with the upper part of the negative pressure bottle body (11), and the first ventilated membrane (19) is fixedly arranged at the lower part of the exhaust port.

6. The portable negative pressure drainage device according to claim 2, wherein the base (2) is formed by clamping a rear base (26) and a front base (27), side panels of the rear base (26) and the front base (27) are arc-shaped panels, the rear base (26) is provided with an upper panel and a lower panel, the upper panel of the rear base (26) is provided with an opening communicated with the bottle pressing body (11), the lower panel of the rear base (26) is provided with a bolt hole corresponding to the front base (27), the vacuum pump (25) is fixedly arranged in a cavity between the upper panel and the lower panel, the battery compartment is fixedly arranged at one side of the vacuum pump (25), and the side panel of the rear base (26) is provided with a groove matched with the clamping structure (28); the front base (27) is provided with a lower edge, a bolt hole corresponding to the lower panel of the rear base (26) is formed in the lower edge, a clamping structure (28) is arranged on a side panel of the front base (27), and a control panel (29) is fixedly arranged on the inner side surface of the front base (27).

7. The portable negative pressure drainage device according to claim 1, wherein a hanging sling (6) is fixedly installed in the middle of the upper portion of the negative pressure bottle (1), a drainage bag clamp (4) is fixedly installed on the side face of the negative pressure bottle (1), a battery compartment cover (8) is fixedly installed on the rear side face of the base (2), a vertical groove (10) is formed in the rear side face of the base (2), a fixing clamp is arranged on the upper portion of the vertical groove (10), and a through hole is formed in the lower portion of the vertical groove (10).

8. The portable negative pressure drainage device according to claim 1, characterized in that a cross drainage valve (31) is arranged at the liquid outlet position of the bottom of the drainage bag (30), a second breathable film (32) is arranged on the bag body of the drainage bag (30), a binding belt (33) is arranged on the upper portion of the drainage bag (30), a connecting pipe is arranged at the liquid inlet position of the upper portion of the drainage bag (30), a connecting pipe clamp (34) is arranged on the connecting pipe, and a luer male connector (35) is arranged at the upper end of the connecting pipe.

9. The portable negative pressure drainage device according to claim 1, characterized in that the drainage tube consists of a first drainage tube (36) and a second drainage tube (37), a drainage three-way joint is arranged between the first drainage tube (36) and the second drainage tube (37), the drainage three-way joint consists of two liquid inlets and a liquid outlet which are mutually communicated, a circular one-way valve (38) is fixedly arranged at the two liquid inlets, and a protective cap (39) is sleeved on one liquid inlet.

10. The portable negative pressure drainage device according to claim 1, wherein a work indicator lamp (40), a fault lamp (41), a low-power lamp (42), a pressurizing key (43), a depressurizing key (44), a switching key (45) and a display screen (46) are arranged on the control board (29).

Images