Medical waste liquid collecting device

Abstract

The utility model provides a medical waste liquid collecting device. The medical waste liquid collecting device comprises a suction head; the negative pressure box comprises a cover plate and a box body, the cover plate is tightly buckled on the box body, a tee joint is arranged on the side wall of the box body, a first connector of the tee joint is used for being connected with a negative pressure air source, and a second connector is communicated with the box body; the waste liquid collecting bag assembly is located in the negative pressure box and comprises at least one bag body and a cover body arranged on the bag body, an inlet and an outlet of each bag body are located in the corresponding cover body, and the cover body and the bag body form an integrated structure; more than two bag bodies are connected in parallel or in series to form an integrated structure, the inlet end of the waste liquid collecting bag assembly is connected with the suction head through a second negative pressure extension tube, and the outlet end of the waste liquid collecting bag assembly is connected with a third interface of the tee joint; the cover body is arranged at the hole in the cover plate, and the cover body and the cover plate form an integrated structure. The device disclosed by the utility model is simple and convenient to install, and can effectively prevent waste liquid from leaking and avoid environmental pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a medical waste liquid collection device. Background Art

[0002] The medical waste collection devices currently used on the market generally use a split installation, meaning each waste collection bag is installed on a waste collection rack, which has a corresponding empty bottle on it, and each waste collection bag comes with its own connecting tube. Before each use, medical staff confirm the approximate number of waste collection bags to be used based on the amount of waste generated during treatment. The last of these bags must be one with a check valve. Generally, manufacturers will set the waste collection bag with a check valve to a certain color, while other standard bags are white. After determining the model and quantity of the waste collection bag, the required waste collection bags can be removed and installed. Place the waste liquid collection bag with a check valve on the last empty bottle, and place the remaining ordinary waste liquid collection bags on the empty bottles on the corresponding waste liquid collection racks. Then connect the connecting tube on the first waste liquid collection bag to the inlet of the second waste liquid collection bag, and the connecting tube of the second waste liquid collection bag to the inlet of the third waste liquid collection bag, and connect them in sequence until they are connected to the last waste liquid collection bag with a check valve. Then connect the connecting tube on the waste liquid collection bag with a check valve to the three-way outlet on the waste liquid collection rack, and connect the three-way outlet to the negative pressure source. After the waste liquid collection bag is installed, test whether the negative pressure is normally transmitted to the inlet of the first waste liquid collection bag. If everything is normal, connect the negative pressure extension tube and suction head to collect the waste liquid. The split installation brings very tedious installation work to medical staff, and manual installation on site is very likely to cause loose installation, resulting in leakage, thereby causing environmental pollution, or even installation errors, resulting in unnecessary waste.

[0003] In order to facilitate medical workers to perform safer, more convenient and more effective operations, it is necessary to propose an improved medical waste liquid collection device. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a medical waste liquid collection device.

[0005] The utility model is realized through the following technical solutions:

[0006] The utility model provides a medical waste liquid collection device, which includes:

[0007] A suction head, the head end of which is inserted into the medical waste liquid and the end is provided with a flow control valve;

[0008] A negative pressure box, comprising a cover and a box body, wherein the cover is tightly fastened to the box body, a tee is provided on the side wall of the box body, a first interface of the tee is used to connect to a negative pressure gas source, and a second interface is communicated with the box body;

[0009] A waste liquid collection bag assembly is located in a negative pressure box. The waste liquid collection bag assembly includes at least one bag body and a cover body provided on the bag body. The inlet and outlet of each bag body are located on the corresponding cover body, wherein the cover body and the bag body form an integrated structure, and two or more bag bodies are connected in parallel or in series to form an integrated structure. The inlet end of the waste liquid collection bag assembly is connected to the suction head through a second negative pressure extension tube, and the outlet end of the waste liquid collection bag assembly is connected to the third interface of the tee; the cover body is provided at the hole on the cover plate, and the cover body and the cover plate form an integrated structure.

[0010] Optionally, the box includes a first box and a second box, and the first box is connected to the second box via a box connecting pipe;

[0011] When only the first box is used, a sealing plug is provided on the box connecting pipe for sealing.

[0012] Optionally, the multiple bag bodies are connected through a connecting tube to connect the outlet of the previous bag body with the inlet of the next bag body to form an integrated structure, forming a series waste liquid collection bag assembly; or, the inlets on all the bag bodies are connected through a connecting tube to form an inlet end, and the outlets on all the bag bodies are connected to form an outlet end, forming a parallel waste liquid collection bag assembly.

[0013] Optionally, the outlet of the last bag body of the waste liquid collection bag assembly connected in series is provided with a stop valve, and the outlet of each bag body of the waste liquid collection bag assembly connected in parallel is provided with a stop valve.

[0014] Optionally, the cover body and the bag body are formed into an integrated structure by medical glue or thermoplastic method.

[0015] Optionally, the cover body and the cover plate are formed of the same plastic, and the cover body and the cover plate are injection-molded into an integral structure.

[0016] Optionally, the tee is fixed to the side wall of the box by medical glue or thermoplastic means.

[0017] Optionally, the first interface of the tee is connected to the negative pressure gas source through a first negative pressure extension tube, and the first negative pressure extension tube is provided with a negative pressure gas source meter.

[0018] Optionally, the head end of the suction head is provided with an opening for sucking medical waste liquid and a plurality of side holes.

[0019] Optionally, the inlet end of the second negative pressure extension tube is thermoplastically welded to the outlet end of the suction head, or the inlet end of the second negative pressure extension tube is connected to the outlet end of the suction head by plugging.

[0020] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0021] The medical waste liquid collection device provided by the present utility model adopts an integrated structure consisting of a cover body and a bag body, a plurality of waste liquid collection bags are connected in series or in parallel to form a waste liquid collection bag assembly, and a structural mode in which the cover body and the cover plate are integrally formed, thereby forming a cover plate with a waste liquid collection bag assembly. The opening and closing states of the waste liquid collection operation are controlled by a flow control valve and the flow rate is adjusted. The device has better airtightness, can effectively prevent leakage of waste liquid, and avoid causing environmental pollution. In addition, since the bag body, the cover body and the cover plate are integrally formed, it is only necessary to install the cover plate on the negative pressure box to complete the installation of all waste liquid collection bags. The installation operation of the device is simpler and more convenient, which greatly optimizes the installation process of medical staff, can avoid operational errors of medical staff during installation, and ensure that the operation of medical staff is safer and more effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the waste liquid collection bag assembly in series in one embodiment of the utility model. Figure 1 ;

[0024] Figure 2 A structural diagram of the medical waste liquid collection device in one embodiment of the utility model in which the second box is activated;

[0025] Figure 3 This is a structural diagram of the first negative pressure extension tube in one embodiment of the present utility model;

[0026] Figure 4 This is a structural diagram of an embodiment of the present invention in which the first negative pressure extension tube is installed in the negative pressure box (excluding the cover plate);

[0027] Figure 5 This is a schematic diagram of the structure of the waste liquid collection bag assembly in series in one embodiment of the utility model. Figure 2 ;

[0028] Figure 6 This is a schematic structural diagram of an embodiment of the present invention in which the cover plate and the waste liquid collection bag assembly are integrated;

[0029] Figure 7This is a schematic diagram of the structure of the waste liquid collection bag assembly in series in one embodiment of the present invention. Figure 3 .

[0030] Figure 8 This is a structural diagram of a connecting pipe activating a second box below a cover plate according to an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the waste liquid collection bag assembly in series in one embodiment of the present invention. Figure 4 ;

[0032] Figure 10 This is a schematic diagram of the structure of the waste liquid collection bag assembly in parallel in one embodiment of the present invention. Figure 1 ;

[0033] Figure 11 This is a schematic diagram of the structure of the waste liquid collection bag assembly in parallel in one embodiment of the present invention. Figure 2 ;

[0034] Figure 12 This is a schematic diagram of the structure of the waste liquid collection bag assembly in parallel in one embodiment of the present invention. Figure 3 ;

[0035] Figure 13 This is a schematic diagram of the structure of the waste liquid collection bag assembly in parallel in one embodiment of the present invention. Figure 4 ;

[0036] Figure 14 for Figure 13 Corresponding AB cross-sectional structural diagram;

[0037] Figure 15 This is a schematic diagram of a suction head with a press-type flow control valve in one embodiment of the present invention;

[0038] Figure 16 Schematic diagram of a suction head with a rotary flow control valve in one embodiment of the present invention.

[0039] In the figure, the reference numerals correspond to: 1 is the first negative pressure extension tube, 2 is the negative pressure box, 3 is the waste liquid collection bag assembly, 4 is the second negative pressure extension tube, 5 is the suction head, 101 is the extension hose, 102 is the negative pressure air source meter, 201 is the first cover plate, 202 is the first box body, 203 is the tee, 204 is the box body connecting pipe, 205 is the sealing plug, 206 is the second box body, 207 is the second cover plate, 301 is the cover body, 302 is the bag body, 303 is the overflow valve, 304 is the connecting pipe, 501 is the head end, and 502 is the flow control valve. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art further understand the present invention, but are not intended to limit the present invention in any way. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention. These modifications and improvements are all within the scope of protection of the present invention.

[0041] Reference Figures 1-16 , the medical waste liquid collection device provided by an embodiment of the present invention includes a suction head 5, a negative pressure box 2, and a waste liquid collection bag assembly 3, wherein: the head end 501 of the suction head 5 is inserted into the medical waste liquid, and a flow control valve 502 is installed at its end to play the role of switching or adjusting the flow size, thereby adjusting the flow rate of the collected waste liquid; the negative pressure box 2 includes a cover, a box body and a tee, the cover is tightly fastened to the box body, and a tee 203 is provided on one side wall of the box body, the first interface (outlet end) of the tee 203 is used to connect to the negative pressure gas source, and the second interface is communicated with the box body; the waste liquid collection bag assembly 3 is located in the negative pressure box 2, and the waste liquid collection bag assembly 3 includes at least one bag body 302 And the cover body 301 covering the bag body 302, the inlet and outlet of each bag body 302 are located on the corresponding cover body 301, wherein the cover body 301 and the bag body 302 form an integrated structure, the inlet and outlet on the cover body 301 are communicated with the bag body 302, thus forming the inlet and outlet of the bag body 302; two or more bag bodies 302 are connected in series or in parallel, the inlet end of the waste liquid collection bag assembly 3 is connected to the suction head 5 through the second negative pressure extension tube, and the outlet end of the waste liquid collection bag assembly 3 is connected to the third interface of the tee 203; a hole is provided on the cover plate, the cover body 301 is installed at the hole, and the cover body 301 and the cover plate form an integrated structure.

[0042] In the embodiment of the present utility model, the negative pressure box 2 is made of a transparent material, and the cover can be tightly buckled on the box body, making the entire negative pressure box 2 airtight. The height of the box body can allow the bag body 302 to be stretched out inside the box body. The cover plate has a hole for installing the waste liquid collection bag assembly 3. The cover body 301 and the cover plate can be directly thermoformed into an integrated structure, eliminating the installation link of the cover body being installed on the cover plate. The above-mentioned tee 203 has three interfaces, the third interface is the inlet end, which is connected to the outlet end of the waste liquid collection bag assembly 3, and the second interface is connected to the box body to ensure the pressure balance between the bag body 302 and the box body, and to ensure that the bag body 302 does not deform after stretching out; the first interface is the outlet end of the tee 203, which is connected to the inlet end of the first negative pressure extension tube 1, thereby introducing the negative pressure gas source.

[0043] In some embodiments, the housing includes a first housing 202, a first cover 201, a second housing 206, and a second cover 207. The first cover 201 is tightly fastened to the first housing 202, and the second cover 207 is tightly fastened to the second housing 206. A tee is provided on one sidewall of the first housing 202, and the other sidewall is connected to the second housing 206 via a housing connecting pipe 204. When only the first housing 202 is used, a sealing plug 205 is provided on the housing connecting pipe 204 for sealing. The housing connecting pipe 204 is sealed by the sealing plug 205. When the amount of waste liquid collected is large and two housings are required, the sealing plug 205 can be removed, and the air pressure of the first housing 202 and the second housing 206 are connected, forming a larger housing to meet the waste liquid collection requirements.

[0044] In the embodiment of the present invention, the waste liquid collection bag assembly 3 is composed of a single or several bag bodies 302 (waste liquid collection bags) connected in series or in parallel. Specifically, the bag body volume ranges from 100ml to 3000ml. The bag body is transparent and has a volume scale. The inlet and outlet of the bag body 302 are located on the cover body 301. The outlet of the upper bag body 302 is connected to the inlet of the next bag body 302 in series to form an integrated structure, forming a waste liquid collection bag assembly 3 with only one inlet end and one outlet end. Specifically, the inlet of the first bag body 302 (close to the suction head 5) is connected to the end of the suction head 5 through the second negative pressure extension tube 4, that is, the inlet of the first bag body 302 is connected to the The outlet end of the second negative pressure extension tube 4 is connected, and its outlet is connected to the inlet of the second bag body 302 through the connecting tube 304, and the outlet of the second bag body 302 is connected to the inlet of the third bag body 302 through the connecting tube 304, and so on, until it is connected to the inlet of the last bag body 302, and the outlet of the last bag body 302 is connected to the third interface (inlet end) of the tee 203; the inlets of all the bag bodies 302 are connected in parallel through the connecting tube to form the inlet end of the waste liquid collection bag assembly 3, and this inlet end is connected to the outlet end of the second negative pressure extension tube 4, and the outlets of all the bag bodies 302 are all connected through the connecting tube to form the outlet end of the waste liquid collection bag assembly 3 in parallel, as shown in FIG. Figure 5 As shown, this outlet end is connected to the third interface of the tee 203. Connecting each waste liquid collection bag in series or in parallel can reduce the workload of medical staff during use and reduce human error operations.

[0045] Multiple bag bodies 302 are bonded into an integrated structure by medical glue, or formed into an integrated structure by thermoplasticization, so as to ensure the tightness and reliability of the integrated structure and avoid leakage during the collection of medical waste liquid; after several bag bodies 302 are connected into an integrated structure, a waste liquid collection bag assembly 3 is formed, so that the outlet end of the waste liquid collection bag assembly 3 is connected to the three-way inlet end on the negative pressure box 2. Preferably, the outlet end of the waste liquid collection bag assembly 3 is connected to the third interface of the three-way 203 by a plug-in connection method, and the connection is quick and convenient.

[0046] In order to prevent waste liquid from being sucked into the negative pressure system, in some embodiments, the outlet of the last bag body 302 in the series connection is provided with a check valve 303, and the outlet of each bag body 302 in the parallel connection is provided with a check valve 303 to ensure that the waste liquid does not overflow, which can effectively prevent the collected medical waste liquid from flowing into the hospital negative pressure system.

[0047] In the above embodiment, the waste liquid collection bag assembly 3 includes a plurality of cover bodies 301 and bag bodies 302. The number of waste liquid collection bags (bag bodies 302) is equal to the total volume of the medical waste liquid to be collected divided by the volume of a single waste liquid collection bag, and the integer plus one is the number of waste liquid collection bags required. For example, taking a 1000ml waste liquid collection bag as an example, when the total volume of the collected waste liquid is 2600ml, the number of waste liquid collection bags required is 2600 divided by 1000, which is an integer equal to 2, plus 1 equals 3, so three waste liquid collection bags are required, and three waste liquid collection bags are used in series or parallel assembly; for another example, still taking a 1000ml waste liquid collection bag as an example, when the volume of the collected waste liquid is 5600ml, the number of waste liquid collection bags required is 5600 divided by 1000, which is an integer equal to 5, plus 1 equals 6, so 6 waste liquid collection bags are required. Considering that the waste liquid in 6 waste liquid collection bags is heavier when carried at the same time, a series grouping method (such as Figure 2 and Figure 9 As shown), the six waste liquid collection bags are divided into two groups of three waste liquid collection bag assemblies, the sealed plug 205 between the first box body 202 and the second box body 206 is removed, the air pressure between the first box body 202 and the second box body 206 is communicated, and then the second cover plate 207 containing the waste liquid collection bag assembly is installed in the second box body 206. In this way, it is only necessary to connect the inlet end of the waste liquid collection bag assembly installed on the first box body 202 and the outlet end of the waste liquid collection bag assembly installed on the second box body 206 to connect the two groups of three waste liquid collection bag assemblies in series into one group of six waste liquid collection bag assemblies.

[0048] In some embodiments, the cover body 301 and the bag body 302 are formed into an integrated structure by medical glue or thermoplastic means, so that the cover plate and the waste liquid collection bag assembly are formed into a whole, which is convenient to connect and can ensure the tightness and reliability of the integrated structure, thereby avoiding leakage during the medical waste liquid collection process.

[0049] like Figure 6 、 Figure 9 、 Figure 11 、 Figure 13 and Figure 14 As shown, in some embodiments, each cover body 301 and the cover plate of the negative pressure box 2 are formed of the same plastic, and the cover body 301 and the cover plate are injection molded into an integral structure to form a cover plate containing a waste liquid collection bag assembly, eliminating the tedious work of installing each waste liquid collection bag. Each bag body 302 is located below the cover plate. When the cover plate is directly and tightly buckled onto the box body of the negative pressure box 2, the installation of the waste liquid collection bag assembly 3 is naturally completed, making it easier and faster for medical staff to complete the installation work. After the cover plate is buckled onto the box body, the bag body 302 is inside the box body; and the connecting tube 304 for multiple bag bodies 302 connected in series or in parallel can be above the cover plate, and only the outlet end of the waste liquid collection bag assembly and the third interface of the tee 203 need to be connected by the connecting tube.

[0050] It should be noted that when the connecting tube 304 is under the cover, the outlet end of the waste liquid collection bag assembly is inside the negative pressure box, and the outlet end of the waste liquid collection bag assembly is connected to the box body. The pressure inside the bag body is consistent with the air pressure inside the box body. In this case, the outlet end of the waste liquid collection bag assembly does not need to be connected to the third interface of the tee 203, and the tee can be replaced with a straight pipe.

[0051] In some embodiments, the tee 203 is fixed to the side wall of the box by medical glue or thermoplastic means, and the first interface of the tee 203 is connected to the negative pressure gas source through the first negative pressure extension tube 1 to connect to the hospital negative pressure gas source. The first negative pressure extension tube 1 is provided with a negative pressure gas source meter 102, such as Figure 3 A negative pressure gas source meter 102 is mounted on the extension hose 101. This meter displays the pressure, ensuring that the operating negative pressure is within the appropriate range. The first negative pressure extension tube 1 can be directly inserted into the negative pressure gas source, thereby introducing the negative pressure gas source into the collection device, forming a sealed device. The negative pressure gas source is then conducted through the second negative pressure extension tube 4 to the suction head 5 for waste liquid suction.

[0052] like Figure 4 The figure shows a structural schematic diagram of the first negative pressure extension tube 1 installed in the box body of the negative pressure box 2. The first negative pressure extension tube 1 is connected to the tee 203 on the box body. One of the passages transmits the hospital's negative pressure air source to the negative pressure box 2, and the other passage is reserved for the waste liquid collection bag assembly 3.

[0053] In some embodiments, the suction head 5 is disposed at the end of the waste liquid collection device, and the head end 501 of the suction head 5 is provided with an opening and several side holes for inserting into the medical waste liquid. The medical waste liquid is sucked into the waste liquid collection bag assembly 3 from the opening and side holes.

[0054] In some embodiments, the flow control valve 502 is a push-type or a rotary type, such as Figure 15 and Figure 16 As shown, the waste liquid collection flow rate can be adjusted, and the opening and closing of the collection device can be controlled.

[0055] In some optional embodiments, the inlet end of the second negative pressure extension tube 4 is thermoplastically welded to the outlet end of the suction head 5 to improve the tightness of the device; or, to improve the convenience of connection, the inlet end of the second negative pressure extension tube 4 is connected to the outlet end of the suction head 5 by plugging and unplugging.

[0056] Continue to refer to Figures 1-6 The medical waste liquid collection device provided in the above embodiment is used as follows:

[0057] Before use, make the following preparations: insert one end of the first negative pressure extension tube 1 with the negative pressure gas source meter 102 into the negative pressure gas source interface of the hospital, and then insert the other end of the first negative pressure extension tube 1 into the outlet end of the tee 203 next to the negative pressure box 2. At this time, you can adjust the negative pressure gas source meter 102 to check whether the negative pressure gas source can work normally. If everything is normal, you can proceed to the next step. Based on the patient's condition and experience, medical staff first estimate the amount of medical waste liquid generated during treatment, and then select the required waste liquid collection bag assembly 3. Taking the waste liquid collection bag assembly in series with the connecting tube above the cover as an example, take out the cover with the waste liquid collection bag assembly, open the outer packaging, extend the bag body 302 of the waste liquid collection bag assembly 3, and then turn the bag body 302 of the waste liquid collection bag assembly 3 inward and buckle it on the negative pressure box 2. The outlet of the last bag body 302 is connected to the third interface (inlet end) of the tee 203. At this time, the negative pressure in the waste liquid collection bag assembly 3 and the negative pressure of the box body come from a negative pressure air source, and the negative pressure of the bag body 302 is consistent with that of the box body, ensuring that the bag body 302 will not be deformed during use due to inconsistent internal and external pressures. At this time, the negative pressure is transmitted to the inlet of the negative pressure box 2 and the waste liquid collection bag assembly 3.

[0058] Then take out the second negative pressure extension tube 4, and insert one end into the exposed inlet of the waste liquid collection bag assembly 3. Since the other outlets and inlets are pre-connected with the connecting tube 304, there is only one inlet on the cover 301 of the waste liquid collection bag assembly 3, which is also the inlet of the first waste liquid collection bag, so there will be no misoperation; then take out the suction head 5, and insert the end of the suction head 5 into the inlet end of the second negative pressure extension tube 4 to complete the preparation work. At this time, the flow control valve 502 is in the closed state.

[0059] After turning on the switch of the negative pressure air source meter 102 and ensuring that the air source meter is within the safe range, the flow control valve 502 installed at the end of the suction head can be opened to collect waste liquid. During the treatment of patients, medical waste liquid is sometimes generated intermittently. In this case, the operation can be completed by simply opening or closing the flow control valve 502 as needed. After the waste liquid collection is completed, the negative pressure air source meter 102 is closed and the contaminated suction head 5, the second negative pressure extension tube 4 and the cover plate with the waste liquid collection bag assembly 3 are thrown into the medical waste bin as medical waste. The uncontaminated negative pressure box 2 (excluding the cover plate) and the first negative pressure extension tube 1 are retained until the next use.

[0060] Reference Figure 7-Figure 9 In some optional embodiments, when the connecting pipe of the series-connected waste liquid collection bag assembly is under the cover, the preparation work and usage methods are the same as those described above. Only during the installation process, because the outlet end of the waste liquid collection bag assembly 3 is inside the box body, the air pressure of the waste liquid collection bag assembly and the air pressure inside the negative pressure box are naturally kept consistent. The cover is directly buckled on the negative pressure box 2 to complete the installation of the waste liquid collection bag assembly 3. There is no need to connect the outlet of the bag body 302 to the third interface (inlet end) of the tee 203. The tee 203 is replaced with a straight-through pipe. The other installation and usage methods remain unchanged.

[0061] Reference Figure 2 and Figure 8 In some optional embodiments, when a set of waste liquid collection bags cannot hold all the waste liquid, the second box 206 can be activated. The preparation work before use is the same as above. Before installing the cover plate with the waste liquid collection bag assembly, first remove the sealing plug 205 between the first box 202 and the second box 206. In this way, the gas of the first box 202 and the second box 206 is connected through the box connecting pipe 204, and the air pressure is consistent. Take out the first cover plate 201 and the second cover plate 207 with the waste liquid collection bag assembly, open the package, buckle the first cover plate 201 and the second cover plate 207 on the corresponding box, and put the suction head 5 The inlet end of the waste liquid collection bag assembly on the second cover plate 207 is connected to the second negative pressure extension tube, and then the outlet end of the waste liquid collection bag assembly on the second cover plate 207 and the inlet end of the waste liquid collection bag assembly on the first cover plate 201 are connected by a connecting tube in a plug-in manner, thereby forming a larger series waste liquid collection bag assembly. At this time, the inlet end of the waste liquid collection bag assembly on the second cover plate 207 is the inlet of the entire waste liquid collection bag assembly. It is only necessary to insert one end of the second negative pressure extension tube 4 into this inlet and the other end of the second negative pressure extension tube into the suction head to complete the installation preparation work. The subsequent operation and use are the same as above.

[0062] Reference Figure 10-13In some optional embodiments, when a group of waste liquid collection bag assemblies 3 are installed on the cover plate in parallel, it is easier to implement the negative pressure box body and its corresponding cover plate using a cylindrical shape, and its preparation work and use method are consistent with the preparation work and use method of a group of waste liquid collection bag assemblies 3 in series; if the amount of waste liquid is too much, after a group of parallel waste liquid collection bag assemblies 3 is full, it is only necessary to replace another group of waste liquid collection bags 3 to collect the waste liquid, repeat the operation, and finally complete the waste liquid collection work.

[0063] The medical waste liquid collection device provided by the above-mentioned embodiments of the present invention adopts an integrated structure of the cover body and the bag body, a plurality of bag bodies are connected in series or in parallel to form an integral body, and a structure in which the cover body and the cover plate are integrally formed, which has better sealing performance and can effectively prevent leakage of waste liquid and avoid environmental pollution; in addition, since the bag body, the cover body and the cover plate are integrally formed, it is only necessary to install the cover plate with the waste liquid collection bag assembly on the negative pressure box to complete the installation of all waste liquid collection bags. The installation operation of the device is simpler and more convenient, which greatly optimizes the installation process of medical staff, can avoid operational errors of medical staff during installation, and ensure that the operation of medical workers is safer and more effective.

[0064] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A medical waste liquid collection device, characterized in that: include: A suction head, the head end of which is inserted into the medical waste liquid and the end of which is provided with a flow control valve; A negative pressure box, comprising a cover plate and a box body, wherein the cover plate is tightly fastened to the box body, a tee is provided on the side wall of the box body, a first interface of the tee is used to connect to a negative pressure gas source, and a second interface is communicated with the box body; A waste liquid collection bag assembly is located in the negative pressure box, and the waste liquid collection bag assembly includes at least one bag body and a cover body arranged on the bag body, and the inlet and outlet of each bag body are located on the corresponding cover body, wherein the cover body and the bag body form an integrated structure, and two or more bag bodies are connected in parallel or in series to form an integrated structure, the inlet end of the waste liquid collection bag assembly is connected to the suction head through a second negative pressure extension tube, and the outlet end of the waste liquid collection bag assembly is connected to the third interface of the tee; the cover body is arranged at the hole on the cover plate, and the cover body and the cover plate form an integrated structure.

2. The medical waste liquid collection device according to claim 1, characterized in that: The box body comprises a first box body and a second box body, and the first box body is connected to the second box body through a box body connecting pipe; When only the first box is used, a sealing plug is provided on the box connecting pipe for sealing.

3. The medical waste liquid collection device according to claim 1, characterized in that: The multiple bag bodies are connected to form an integrated structure by connecting the outlet of the previous bag body with the inlet of the next bag body through a connecting tube, forming a series waste liquid collection bag assembly; or, the inlets on all the bag bodies are connected to form an inlet, and the outlets on all the bag bodies are connected to form an outlet through a connecting tube, forming a parallel waste liquid collection bag assembly.

4. The medical waste liquid collection device according to claim 1 or 3, characterized in that: The outlet end of the series-connected waste liquid collection bag assembly is provided with a non-overflow valve, and the outlet of each bag body of the parallel-connected waste liquid collection bag assembly is provided with a non-overflow valve.

5. The medical waste liquid collection device according to claim 1, characterized in that: The cover body and the bag body are formed into an integrated structure by medical glue or thermoplastic method.

6. The medical waste liquid collection device according to claim 1, characterized in that: The cover body and the cover plate are formed of the same plastic, and the cover body and the cover plate are injection-molded into an integral structure.

7. The medical waste liquid collection device according to claim 1, characterized in that: The tee is fixed on the side wall of the box body by medical glue or thermoplastic method.

8. The medical waste liquid collection device according to claim 1, characterized in that: The first interface of the three-way connection is connected to a negative pressure gas source through a first negative pressure extension tube, and a negative pressure gas source meter is provided on the first negative pressure extension tube.

9. The medical waste liquid collection device according to claim 1, characterized in that: The head end of the suction head is provided with an opening for sucking medical waste liquid and a plurality of side holes.

10. The medical waste liquid collection device according to claim 1, characterized in that: The inlet end of the second negative pressure extension tube is thermoplastically welded to the outlet end of the suction head, or the inlet end of the second negative pressure extension tube is connected to the outlet end of the suction head by plugging.

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