阅读说明：本技术 一种医疗废液收集计量装置 (Medical waste liquid collecting and metering device ) 是由 袁萍丽 江婷婷 肖箫 于 2020-07-16 设计创作，主要内容包括：本发明公开了一种医疗废液收集计量装置,包括计量盒、收集袋和显示屏；计量盒和收集袋可拆卸地连接,其形成的整体根据引流管的位置可放置于病床四周；显示屏和计量盒通信连接；且显示屏3固定设置于计量盒1上。本医疗废液收集计量装置将收集和计量装置集为一体,对病员引流物的量进行准确无误的计量,减少了人员的工作量,且减少了倾倒者和病员发生交叉污染的发生机会,更加安全可靠。同时,可将引流量进行实时显示,便于医务人员和护理人员记录和观察引流量。(The invention discloses a medical waste liquid collecting and metering device, which comprises a metering box, a collecting bag and a display screen, wherein the metering box is connected with the collecting bag; the measuring box is detachably connected with the collecting bag, and the formed whole body can be placed around a sickbed according to the position of the drainage tube; the display screen is in communication connection with the metering box; and the display screen 3 is fixedly arranged on the metering box 1. This metering device is collected to medical waste liquid will collect and metering device collects as an organic whole, carries out accurate errorless measurement to the volume of patient's drainage thing, has reduced personnel's work load, and has reduced and has emptyd the emergence chance that person and patient take place cross contamination, safe and reliable more. Meanwhile, the drainage quantity can be displayed in real time, so that medical staff and nursing staff can record and observe the drainage quantity conveniently.)

1. The medical waste liquid collecting and metering device is characterized by comprising a metering box (1), a collecting bag (2) and a display screen (3);

the measuring box (1) is detachably connected with the collecting bag (2), and the formed whole body is fixedly arranged around the sickbed; the display screen (3) is in communication connection with the metering box (1); and the display screen (3) is fixedly arranged on the metering box (1).

2. The medical waste liquid collecting and metering device according to claim 1, wherein a weighing device (4) is fixedly arranged at the bottom of the metering box (1); the weighing device (4) is in communication connection with the display screen (3).

3. The medical waste liquid collecting and metering device according to claim 2, wherein the weighing machine (4) comprises a main control module (5), a weighing sensing module (6), an amplifier module (7) and a power supply module (8);

the display screen (3), the weighing sensing module (6) and the amplifier module (7) are in communication connection with the main control module (5); the main control module (5) is electrically connected with the power supply module (8); the amplifier module (7) is in communication connection with the weighing sensing module (6).

4. The medical waste liquid collecting and metering device of claim 3, wherein the amplifier module (7) comprises a grounding resistor R1, a resistor R2, a grounding resistor R3, resistors R4-R5, a grounding resistor R6, resistors R7-R11, a grounding capacitor C1 and an operational amplifier chip U2 with the model of MAX 4472;

the VDD pin of the chip U2 and one end of the resistor R2 are connected with a main control module (5); the other end of the resistor R2 is connected with a grounding resistor R1; the INA-pin of the chip U2 is connected with a grounding resistor R3; an INA + pin of the chip U2 is respectively connected with one end of a grounding capacitor C1, one end of a resistor R8 and one end of a resistor R9; the OUTA pin of the chip U2 is respectively connected with one end of a resistor R10 and one end of a resistor R11; the INB + pin of the chip U2 is respectively connected with the other end of the resistor R9 and the other end of the resistor R11; the INC + pin of the chip U2 is respectively connected with the other end of the resistor R8 and the other end of the resistor R10; an OUTD pin of the chip U2 is respectively connected with one end of a resistor R4 and the weighing sensing module (6); the IND-pin of the chip U2 is respectively connected with the other end of the resistor R4 and one end of the resistor R5; the INB-pin of the chip U2 is respectively connected with the other end of the resistor R5 and the OUTB pin of the chip U2; the IND + pin of the chip U2 is respectively connected with one end of a grounding resistor R6 and one end of a resistor R7; the INC-pin and the OUTC pin of the chip U2 are both connected with the other end of the resistor R7; the VSS pin of the chip U2 is grounded.

5. The medical waste liquid collecting and metering device of claim 4, wherein the weighing sensing module (6) comprises a resistor R12-R13, a ground resistor R14-R15, a resistor R16, a ground capacitor C2-C3, a capacitor C4, a ground capacitor C5-C6, a capacitor C7, a ground capacitor C8-C9, a capacitor C10, a crystal oscillator Y1, an inductor L1-L2 and a conversion chip U1 with the model of CS 5532;

an AIN1+ pin of the chip U1 is respectively connected with one end of a grounding capacitor C5, one end of a capacitor C10 and one end of an inductor L1; an AIN 1-pin of the chip U1 is respectively connected with the grounding capacitor C6, the other end of the capacitor C10 and one end of the inductor L2; the other end of the inductor L1 is respectively connected with one end of a capacitor C4, one end of a grounding capacitor C2, one end of a resistor R12 and one end of a resistor R14; the other end of the inductor L2 is respectively connected with the other end of the capacitor C4, the grounding capacitor C3, one end of the resistor R13 and one end of the resistor R15; the other end of the resistor R12 and the other end of the resistor R13 are both connected with an OUTD pin of a chip U2; the VA + pin of the chip U1 is connected with the grounding capacitor C8, and the VA-pin is grounded; an OSC2 pin of the chip U1 is connected with one end of a crystal oscillator Y1, and an OSC1 pin of the chip U1 is connected with the other end of the crystal oscillator Y1; an AIN2+ pin, an AIN 2-pin, a Vref-pin and a DGND pin of the chip U1 are all grounded; the VD + pin of the chip U1 is respectively connected with one end of a grounding capacitor C9 and one end of a resistor R16; the other end of the resistor R16 is connected with the main control module (5).

6. Medical waste collection and metering device according to claim 1, wherein the collection bag (2) comprises a first collection bag (9) and a second collection bag (10);

the first collecting bag (9) and the second collecting bag (10) are respectively detachably connected with the metering box (1).

7. The medical waste collection and metering device of claim 6, wherein the first collection bag (9) comprises a bottle body (11), a drainage rigid tube (12), a drainage hose (13), a first clamp (14), a first vent hole (15), a bottle cap (16) and a first connector (17);

the bottle body (11) and the bottle cap (16) are detachably connected; one end of the drainage hard tube (12) is fixedly arranged in the bottle body (11), and the other end of the drainage hard tube is fixedly connected with one end of the drainage hose (13); the other end of the drainage hose (13) is fixedly connected with a first joint (17); the first clamp (14) is fixedly arranged on the outer tube wall of the drainage hose (13); the first exhaust hole (15) is fixedly arranged at the top of the bottle cap (16).

8. The medical waste collection and metering device of claim 6, wherein the second collection bag (10) comprises an air chamber (18), a first fixed seat (19), a second fixed seat (20), a drainage tube (21), a second clip (22), a second vent hole (23), and a second connector (24);

the air cavity (18) is telescopically and fixedly arranged between the first fixing seat (19) and the second fixing seat (20); one end of the drainage tube (21) is fixedly arranged at the top of the first fixed seat (19), and the other end of the drainage tube is fixedly connected with the second joint (24); the second clamp (22) is fixedly arranged on the outer tube wall of the drainage tube (21); the second exhaust hole (23) is fixedly arranged at the top of the first fixed seat (19).

9. The medical waste collection and metering device of claim 3, wherein the display screen (3) comprises an LED display screen (25), a hook (26), a power line (27) and a data transmission line interface (28);

the hooks (26) are respectively and fixedly arranged at two ends of the top of the LED display screen (25); the display screen (3) is fixedly arranged on the metering box (1) through a hook (26); the power line (27) and the data transmission line interface (28) are fixedly arranged on the side wall of the LED display screen (25); and the LED display screen (25) is in communication connection with the main control module (5).

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a medical waste liquid collecting and metering device.

Background

In the medical field, the medical waste liquid mainly refers to urine, abdominal drainage liquid, thoracic drainage liquid and the like of a patient. In clinical work, the above-mentioned medical waste liquid of patient is mainly emptyd by patient's family members, nursing staff and nurse etc. and the person of empting has the risk of contacting patient's bodily fluid at the in-process of empting, can destroy drainage device's leakproofness even and cause the risk of infection for the patient. Meanwhile, in the actual treatment process, the amount of the drainage is measured sometimes according to the requirements of the patient, which is usually performed by family members, nursing staff and nurses, but due to human factors, the measurement is inaccurate or omitted, and the extra workload of the staff is increased.

Disclosure of Invention

The invention aims to solve the problem of collecting and metering medical waste liquid and provides a medical waste liquid collecting and metering device.

The technical scheme of the invention is as follows: a medical waste liquid collecting and metering device comprises a metering box, a collecting bag and a display screen;

the measuring box is detachably connected with the collecting bag, and the whole formed measuring box is fixedly arranged around the sickbed; the display screen is in communication connection with the metering box; and the display screen is fixedly arranged on the metering box.

The invention has the beneficial effects that: this metering device is collected to medical waste liquid will collect and metering device collects as an organic whole, carries out accurate errorless measurement to the volume of patient's drainage thing, has reduced personnel's work load, and has reduced and has emptyd the emergence chance that person and patient take place cross contamination, safe and reliable more. Meanwhile, the drainage quantity can be displayed in real time, so that medical staff and nursing staff can record and observe the drainage quantity conveniently.

Further, a weighing device is fixedly arranged at the bottom of the box body of the metering box; the weighing device is in communication connection with the display screen.

The beneficial effects of the further scheme are as follows: in the invention, the metering box and the weighing device are integrated into one device, and the weighing device can weigh medical waste liquid and simultaneously can carry out peeling and zero clearing treatment.

Further, the weighing device comprises a main control module, a weighing sensing module, an amplifier module and a power supply module;

the display screen, the weighing sensing module and the amplifier module are all in communication connection with the main control module; the main control module is electrically connected with the power supply module; the amplifier module is in communication connection with the weighing sensing module.

The beneficial effects of the further scheme are as follows: in the invention, the weighing sensing module and the amplifier module are controlled by the main control module to complete the real-time transmission of weighing data, and the power supply module provides stable power supply for the weighing sensing module and the amplifier module.

Further, the amplifier module comprises a grounding resistor R1, a resistor R2, a grounding resistor R3, resistors R4-R5, a grounding resistor R6, resistors R7-R11, a grounding capacitor C1 and an operational amplifier chip U2 with the model of MAX 4472;

a VDD pin of the chip U2 and one end of the resistor R2, wherein the connection point of the VDD pin and the resistor R2 is also connected with the main control module; the other end of the resistor R2 is connected with a grounding resistor R1; the INA-pin of the chip U2 is connected with a grounding resistor R3; an INA + pin of the chip U2 is respectively connected with one end of a grounding capacitor C1, one end of a resistor R8 and one end of a resistor R9; the OUTA pin of the chip U2 is respectively connected with one end of the resistor R10 and one end of the resistor R11; an INB + pin of the chip U2 is respectively connected with the other end of the resistor R9 and the other end of the resistor R11; the INC + pin of the chip U2 is respectively connected with the other end of the resistor R8 and the other end of the resistor R10; an OUTD pin of the chip U2 is respectively connected with one end of the resistor R4 and the weighing sensing module; an IND-pin of the chip U2 is respectively connected with the other end of the resistor R4 and one end of the resistor R5; the INB-pin of the chip U2 is connected with the other end of the resistor R5 and the OUTB pin of the chip U2 respectively; an IND + pin of the chip U2 is respectively connected with one end of a grounding resistor R6 and one end of a resistor R7; the INC-pin and the OUTC pin of the chip U2 are both connected with the other end of the resistor R7; the VSS pin of chip U2 is connected to ground.

Further, the weighing sensing module comprises resistors R12-R13, grounding resistors R14-R15, resistors R16, grounding capacitors C2-C3, capacitors C4, grounding capacitors C5-C6, capacitors C7, grounding capacitors C8-C9, capacitors C10, a crystal oscillator Y1, inductors L1-L2 and a conversion chip U1 with the model number of CS 5532;

an AIN1+ pin of the chip U1 is respectively connected with one end of a grounding capacitor C5, one end of a capacitor C10 and one end of an inductor L1; an AIN 1-pin of the chip U1 is respectively connected with the grounding capacitor C6, the other end of the capacitor C10 and one end of the inductor L2; the other end of the inductor L1 is respectively connected with one end of a capacitor C4, one end of a grounding capacitor C2, one end of a resistor R12 and one end of a resistor R14; the other end of the inductor L2 is respectively connected with the other end of the capacitor C4, the grounding capacitor C3, one end of the resistor R13 and one end of the resistor R15; the other end of the resistor R12 and the other end of the resistor R13 are both connected with an OUTD pin of the chip U2; the VA + pin of the chip U1 is connected with the grounding capacitor C8, and the VA-pin is grounded; an OSC2 pin of the chip U1 is connected with one end of the crystal oscillator Y1, and an OSC1 pin of the chip U1 is connected with the other end of the crystal oscillator Y1; an AIN2+ pin, an AIN 2-pin, a Vref-pin and a DGND pin of the chip U1 are all grounded; a VD + pin of the chip U1 is respectively connected with one end of a grounding capacitor C9 and one end of a resistor R16; the other end of the resistor R16 is connected with the main control module.

Further, the collection bag comprises a first collection bag and a second collection bag;

the first and second collection bags are respectively detachably connected to the measuring box.

The beneficial effects of the further scheme are as follows: in the invention, the first collecting bag and the second collecting bag are matched with the metering box for use, and different types and different quantities of collecting bags can be selected according to the actual condition of a patient; meanwhile, the measuring box is increased or decreased according to the number of drainage collecting bags.

Further, the first collecting bag comprises a bottle body, a drainage hard tube, a drainage hose, a first clamp, a first exhaust hole, a bottle cap and a first joint;

the bottle body and the bottle cap are detachably connected; one end of the drainage hard tube is fixedly arranged in the bottle body, and the other end of the drainage hard tube is fixedly connected with one end of the drainage hose; the other end of the drainage hose is fixedly connected with the first joint; the first clamp is fixedly arranged on the outer tube wall of the drainage hose; the first exhaust hole is fixedly arranged at the top of the bottle cap.

The beneficial effects of the further scheme are as follows: in the invention, the first collecting bag is used for draining gas and liquid, and when the collecting bag is used, the bottle cap is opened, and sterile water is poured into the bottle, so that the tail end of the drainage hard tube is immersed in the water, and the drainage liquid with the gas is convenient to collect.

Further, the second collecting bag comprises an air cavity, a first fixing seat, a second fixing seat, a drainage tube, a second clamp, a second exhaust hole and a second joint;

the air cavity is telescopically and fixedly arranged between the first fixing seat and the second fixing seat; one end of the drainage tube is fixedly arranged at the top of the first fixed seat, and the other end of the drainage tube is fixedly connected with the second joint; the second clamp is fixedly arranged on the outer tube wall of the drainage tube; the second exhaust hole is fixedly arranged at the top of the first fixed seat.

The beneficial effects of the further scheme are as follows: in the invention, the second collecting bag is only used for collecting liquid, and is kept in an original state when negative pressure is not needed, the air cavity is compressed when negative pressure is needed, and the air cavity is compressed after the vent hole is opened to form negative pressure, so that liquid can be conveniently collected.

Further, the display screen comprises an LED display screen, a hook, a power line and a data transmission line interface;

the hooks are respectively fixedly arranged at two ends of the top of the LED display screen; the display screen is fixedly arranged on the metering box through a hook; the power line and the data transmission line interface are fixedly arranged on the side wall of the LED display screen; the LED display screen is in communication connection with the main control module.

The beneficial effects of the further scheme are as follows: in the invention, the display screen is used for displaying the real-time weighing data, so that a user can directly obtain accurate data conveniently, and the display screen can be connected with a hospital office system through a data transmission line interface and is convenient for medical staff to check.

Drawings

FIG. 1 is a block diagram of a medical waste collection and metering device;

FIG. 2 is a block diagram of the scale;

FIG. 3 is a circuit diagram of an amplifier module;

FIG. 4 is a circuit diagram of a load cell module;

FIG. 5 is a block diagram of a first collection bag;

FIG. 6 is a block diagram of a second collection bag;

in the figure, 1, a measuring box; 2. a collection bag; 3. a display screen; 4. a weighing device; 5. a main control module; 6. a weighing sensing module; 7. an amplifier module; 8. a power supply module; 9. a first collection bag; 10. a second collection bag; 11. a bottle body; 12. draining the hard tube; 13. a drainage hose; 14. a first clip; 15. a first exhaust port; 16. a bottle cap; 17. a first joint; 18. an air cavity; 19. a first fixed seat; 20. a second fixed seat; 21. a drainage tube; 22. a second clip; 23. a second vent hole; 24. a second joint; 25. an LED display screen; 26. hooking; 27. a power line; 28. and a data transmission line interface.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

As shown in figure 1, the invention provides a medical waste liquid collecting and metering device, which comprises a metering box 1, a collecting bag 2 and a display screen 3;

the measuring box 1 is detachably connected with the collecting bag 2, and the whole formed by the measuring box is fixedly arranged around the sickbed; the display screen 3 is in communication connection with the metering box 1; and the display screen 3 is fixedly arranged on the metering box 1.

In the embodiment of the invention, as shown in fig. 1, a weighing device 4 is fixedly arranged at the bottom of the box body of the metering box 1; the weighing device 4 is in communication connection with the display screen 3. In the invention, the metering box and the weighing device are integrated into one device, and the weighing device can weigh medical waste liquid and simultaneously can carry out peeling and zero clearing treatment.

In the embodiment of the invention, as shown in fig. 2, the weighing device 4 comprises a main control module 5, a weighing sensing module 6, an amplifier module 7 and a power supply module 8;

the display screen 3, the weighing sensing module 6 and the amplifier module 7 are in communication connection with the main control module 5; the main control module 5 is electrically connected with the power supply module 8; the amplifier module 7 is in communication connection with the weighing sensor module 6. In the invention, the weighing sensing module and the amplifier module are controlled by the main control module to complete the real-time transmission of weighing data, and the power supply module provides stable power supply for the weighing sensing module and the amplifier module.

In the embodiment of the present invention, as shown in fig. 3, the amplifier module 7 includes a ground resistor R1, a resistor R2, a ground resistor R3, resistors R4-R5, a ground resistor R6, a resistor R7, a ground capacitor C1, and an operational amplifier chip U2 with a model of MAX 4472;

a VDD pin of the chip U2 and one end of the resistor R2, and the connection point of the VDD pin and the resistor R2 is also connected with the main control module 5; the other end of the resistor R2 is connected with a grounding resistor R1; the INA-pin of the chip U2 is connected with a grounding resistor R3; an INA + pin of the chip U2 is respectively connected with one end of a grounding capacitor C1, one end of a resistor R8 and one end of a resistor R9; the OUTA pin of the chip U2 is respectively connected with one end of the resistor R10 and one end of the resistor R11; an INB + pin of the chip U2 is respectively connected with the other end of the resistor R9 and the other end of the resistor R11; the INC + pin of the chip U2 is respectively connected with the other end of the resistor R8 and the other end of the resistor R10; an OUTD pin of the chip U2 is respectively connected with one end of the resistor R4 and the weighing sensing module 6; an IND-pin of the chip U2 is respectively connected with the other end of the resistor R4 and one end of the resistor R5; the INB-pin of the chip U2 is connected with the other end of the resistor R5 and the OUTB pin of the chip U2 respectively; an IND + pin of the chip U2 is respectively connected with one end of a grounding resistor R6 and one end of a resistor R7; the INC-pin and the OUTC pin of the chip U2 are both connected with the other end of the resistor R7; the VSS pin of chip U2 is connected to ground.

In the embodiment of the present invention, as shown in fig. 4, the amplifier module 7 includes a ground resistor R1, a resistor R2, a ground resistor R3, resistors R4-R5, a ground resistor R6, resistors R7-R11, a ground capacitor C1, and an operational amplifier chip U2 with a model of MAX 4472;

a VDD pin of the chip U2 and one end of the resistor R2, and the connection point of the VDD pin and the resistor R2 is also connected with the main control module 5; the other end of the resistor R2 is connected with a grounding resistor R1; the INA-pin of the chip U2 is connected with a grounding resistor R3; an INA + pin of the chip U2 is respectively connected with one end of a grounding capacitor C1, one end of a resistor R8 and one end of a resistor R9; the OUTA pin of the chip U2 is respectively connected with one end of the resistor R10 and one end of the resistor R11; an INB + pin of the chip U2 is respectively connected with the other end of the resistor R9 and the other end of the resistor R11; the INC + pin of the chip U2 is respectively connected with the other end of the resistor R8 and the other end of the resistor R10; an OUTD pin of the chip U2 is respectively connected with one end of the resistor R4 and the weighing sensing module 6; an IND-pin of the chip U2 is respectively connected with the other end of the resistor R4 and one end of the resistor R5; the INB-pin of the chip U2 is connected with the other end of the resistor R5 and the OUTB pin of the chip U2 respectively; an IND + pin of the chip U2 is respectively connected with one end of a grounding resistor R6 and one end of a resistor R7; the INC-pin and the OUTC pin of the chip U2 are both connected with the other end of the resistor R7; the VSS pin of chip U2 is connected to ground.

In an embodiment of the invention, as shown in fig. 5 and 6, the collecting bag 2 comprises a first collecting bag 9 and a second collecting bag 10;

the first collection bag 9 and the second collection bag 10 are each detachably connected to the dosing box 1. In the invention, the first collecting bag and the second collecting bag are matched with the metering box for use, and different types and different quantities of collecting bags can be selected according to the actual condition of a patient; meanwhile, the measuring box is increased or decreased according to the number of drainage collecting bags.

In the embodiment of the present invention, as shown in fig. 5, the first collection bag 9 comprises a bottle body 11, a drainage hard tube 12, a drainage hose 13, a first clamp 14, a first vent hole 15, a bottle cap 16 and a first connector 17;

body 11 and closure 16 are removably connected; one end of the drainage hard tube 12 is fixedly arranged inside the bottle body 11, and the other end of the drainage hard tube is fixedly connected with one end of the drainage hose 13; the other end of the drainage hose 13 is fixedly connected with a first joint 17; the first clamp 14 is fixedly arranged on the outer tube wall of the drainage hose 13; the first venting hole 15 is fixedly provided at the top of the bottle cap 16. In the invention, the first collecting bag is used for draining gas and liquid, and when the collecting bag is used, the bottle cap is opened, and sterile water is poured into the bottle, so that the tail end of the drainage hard tube is immersed in the water, and the drainage liquid with the gas is convenient to collect.

In the embodiment of the present invention, as shown in fig. 6, the second collecting bag 10 includes an air chamber 18, a first fixing seat 19, a second fixing seat 20, a drainage tube 21, a second clip 22, a second air outlet 23, and a second joint 24;

the air cavity 18 is telescopically and fixedly arranged between the first fixed seat 19 and the second fixed seat 20; one end of the drainage tube 21 is fixedly arranged at the top of the first fixed seat 19, and the other end thereof is fixedly connected with the second joint 24; the second clamp 22 is fixedly arranged on the outer tube wall of the drainage tube 21; the second air outlet 23 is fixedly disposed on the top of the first fixing seat 19. In the invention, the second collecting bag is only used for collecting liquid, and is kept in an original state when negative pressure is not needed, the air cavity is compressed when negative pressure is needed, and the air cavity is compressed after the vent hole is opened to form negative pressure, so that liquid can be conveniently collected.

In the embodiment of the present invention, as shown in fig. 1, the display screen 3 includes an LED display screen 25, a hook 26, a power line 27 and a data transmission line interface 28;

the hooks 26 are respectively fixedly arranged at two ends of the top of the LED display screen 25; the display screen 3 is fixedly arranged on the metering box 1 through a hook 26; the power line 27 and the data transmission line interface 28 are both fixedly arranged on the side wall of the LED display screen 25; the LED display screen 25 is in communication connection with the main control module 5. In the invention, the display screen is used for displaying the real-time weighing data, so that a user can directly obtain accurate data conveniently, and the display screen can be connected with a hospital office system through a data transmission line interface and is convenient for medical staff to check.

The working principle and the process of the invention are as follows: when using this metering device is collected to medical waste liquid, can choose for use the first bag 9 and the cooperation of second collection bag 10 and measurement box 1 of different quantity according to patient's actual demand. The whole metering device can be hung around the bed according to the condition of the drainage tube, for example, the drainage tube can be hung on the head of the bed when the drainage tube is positioned on the head of a patient. If liquid with gas needs to be drained, a first collecting bag 9 is selected; in use, the cap 16 is opened and sterile water is poured into the bottle so that the end of the drainage tube 12 is submerged in the water for venting and collecting the liquid. If only drainage of liquid is needed, a second collection bag 10 is selected; the original state is kept when negative pressure is not needed, the air cavity 18 is compressed when negative pressure is needed, and the air cavity is compressed after the second exhaust hole 23 is opened, so that negative pressure is formed, and liquid is convenient to collect. After collection, the collection bag 2 is placed in the metering box 1, the weighing device 4 can accurately weigh the collection bag 2, can perform peeling and zero clearing treatment, simultaneously displays real-time weighing data in an LED display screen 25, and hooks in the display screen 3 are used for being fixed around a sickbed, so that a user can observe the real-time weighing data conveniently; the power line 27 is used for supplying power; data transmission line interface 28 can be connected with hospital's office system, and the doctor of being convenient for arranges statistics drainage volume in the system to can be according to actual need, the real-time drainage volume of gathering.

The invention has the beneficial effects that: this metering device is collected to medical waste liquid will collect and metering device collects as an organic whole, carries out accurate errorless measurement to the volume of patient's drainage thing, has reduced personnel's work load, and has reduced and has emptyd the emergence chance that person and patient take place cross contamination, safe and reliable more. Meanwhile, the drainage quantity can be displayed in real time, so that medical staff and nursing staff can record and observe the drainage quantity conveniently.

It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.