Drainage device for thoracic surgery

Abstract

The utility model provides a drainage device for thoracic surgery, which belongs to the technical field of thoracic surgery and comprises a movable base, a drainage component, a mounting component, a connecting pipe group, a negative pressure pump, an overpressure protection component and a pressing component. Pulleys are arranged at the bottom of the movable base, a groove is formed in the top of the movable base, and a plurality of limiting convex blocks are arranged in the groove; the drainage assembly comprises a first bottle body, a second bottle body and a third bottle body, a plurality of limiting grooves are formed in the bottoms of the first bottle body, the second bottle body and the third bottle body, and the limiting convex blocks are embedded into the limiting grooves; according to the device, the drainage assembly is conveniently detached and replaced, the internal and external pressure of the drainage device is balanced through the overpressure protection assembly, so that the situation that a patient is hurt due to the fact that negative pressure is too large and foreign matter enters the drainage device is avoided, and meanwhile the first filter screen is conveniently replaced through the pressing assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of thoracic surgery, and in particular relates to a drainage device for thoracic surgery. Background Art

[0002] Currently, after thoracic surgery, patients need to use chest drainage to drain the accumulated fluid or gas in the chest cavity to promote lung re-expansion and accelerate recovery. The traditional chest drainage system includes single-bottle, double-bottle or triple-bottle drainage devices. The above technologies can meet clinical needs to a certain extent.

[0003] In the patent application with application number 202211495943.7, a filter for a drainage device specifically for thoracic surgery is proposed. The application includes a shell, a filter assembly, a mesh assembly and a scraper plate; the filter assembly includes a tubular filter, a drive roller and a reversing roller; the technical effect of the filter used for the thoracic surgery drainage device having good filtering effect and not easy to be blocked at the location of the filter is achieved.

[0004] However, in the prior art, the filter needs to be cleaned and replaced regularly after being used for a period of time. If the above technical solution is adopted, the structure is relatively complicated, and it is inconvenient to disassemble and replace the filter assembly and drainage equipment. In addition, during the drainage process, if the negative pressure is too large, it is easy to cause harm to the patient. Utility Model Content

[0005] Based on the above technical problems, the utility model provides a drainage device for thoracic surgery, which is convenient for disassembly and replacement of the drainage components, and balances the internal and external pressures of the drainage device through an overpressure protection component, thereby avoiding excessive negative pressure and foreign matter entering the drainage device to cause harm to the patient. At the same time, the first filter can be easily replaced by pressing the component.

[0006] The specific technical solution is:

[0007] A thoracic surgical drainage device comprises: a movable base, a drainage component, a mounting component, a connecting tube group, a negative pressure pump, an overpressure protection component and a pressing component; a pulley is provided at the bottom of the movable base, a groove is provided at the top of the movable base, and a plurality of limiting protrusions are provided in the groove; the drainage component comprises a first bottle body, a second bottle body and a third bottle body, and the bottoms of the first bottle body, the second bottle body and the third bottle body are all provided with a plurality of limiting grooves, and the limiting protrusions are embedded in the limiting grooves; the mounting component comprises a first mounting cover, a second mounting cover and a third mounting cover, the first mounting cover, the second mounting cover and the third mounting cover are respectively connected to the top openings of the first bottle body, the second bottle body and the third bottle body by threads, and the first mounting cover, the second mounting cover and the third mounting cover are all provided with a water inlet and a water outlet; the connecting tube group comprises a drainage tube, a first hose, a second hose and a third hose, the drainage tube is connected to the water inlet of the first mounting cover, and the two ends of the first hose are respectively connected to the water inlet of the first mounting cover. The water outlet of the first mounting cover is connected with the water inlet of the second mounting cover, the two ends of the second hose are respectively connected with the water outlet of the second mounting cover and the water inlet of the third mounting cover, and one end of the third hose is connected with the water outlet of the third mounting cover; the negative pressure pump is arranged on the top of the third mounting cover, and the negative pressure pump is connected with the other end of the third hose; the overpressure protection assembly includes a connecting port, a long tube, a connecting head and a first filter screen, the connecting port is arranged at the third mounting cover, one end of the long tube is connected with the connecting port and embedded in the bottom of the third bottle body, the connecting head is connected with the other end of the long tube, and the first filter screen is clamped in the connecting head; the pressing assembly includes a shell, a connecting piece, a spring, a connecting rod and a pressing part, the shell is arranged on one side of the connecting head, one end of the connecting piece is fitted with the bottom surface of the first filter screen, the connecting piece, the connecting rod and the pressing part are connected in sequence, the spring is wound around the outside of the connecting rod, and the two ends of the spring are respectively connected with the connecting piece and the inner wall of the shell.

[0008] In addition, the thoracic surgery drainage device in the above technical solution provided by the utility model may also have the following additional technical features:

[0009] In the above technical solution, the pressing part includes: a pressing block and a limiting block; the pressing block is connected to the connecting rod, and at least part of the pressing block is embedded in the shell; the surface of the limiting block is provided with friction patterns, the limiting block is connected to the pressing block, and the limiting block is located on the outside of the shell.

[0010] The above technical solution also includes: a connecting sleeve and a handle; the connecting sleeves are respectively arranged on the outside of the drainage pipe, the first hose, the second hose and the third hose, and the connecting sleeves are respectively arranged on the outside of the water inlet and the water outlet; the handle is connected to one end of the connecting sleeve; wherein the connecting sleeve and the handle are both elastomers.

[0011] The above technical solution also includes: a mounting sleeve, a second filter screen, a pressure plate and a circular groove; the mounting sleeve is provided with a T-shaped groove, and the mounting sleeve is arranged at the bottom of the drainage pipe; the second filter screen is embedded in the T-shaped groove of the mounting sleeve; the pressure plate is embedded in the mounting sleeve, and the pressure plate is in contact with the top surface of the second filter screen; the circular groove is arranged through the pressure plate, and the circular groove is opposite to the T-shaped groove; wherein the mounting sleeve and the pressure plate are both elastic bodies.

[0012] The above technical solution also includes: a clearance groove and a slide groove; the clearance groove is arranged on one side of the connector, and the connecting piece is embedded in the clearance groove; the slide groove is arranged on one side of the shell, and the diameter of the slide groove is smaller than the diameter of the limit block.

[0013] The above technical solution also includes: a one-way valve; the one-way valve is respectively arranged at the drainage tube, the first hose, the second hose and the third hose.

[0014] The above technical solution also includes: a flow monitoring sensor and a pressure sensor; the flow monitoring sensor is respectively arranged at the water outlet of the first mounting cover, the second mounting cover and the third mounting cover; the pressure sensor is respectively arranged at the water inlet of the first mounting cover, the second mounting cover and the third mounting cover.

[0015] In the above technical solution, it also includes: two mounting grooves and a support frame; the two mounting grooves are respectively arranged on the bottom wall of the third bottle body; the support frame includes two support legs and a support part, the two support legs are respectively embedded in the two mounting grooves, the support part is penetrated by a positioning hole, and the long tube is embedded in the positioning hole; wherein, the support frame is an elastomer.

[0016] Compared with the prior art, the utility model of a thoracic surgery drainage device has the following beneficial effects:

[0017] 1. Through the cooperation between the protrusion and the limiting groove, it is convenient for the staff to install any type of bottle body combination on the mobile base according to the needs, so as to perform closed chest drainage. In addition, since a pulley is provided at the bottom of the mobile base, the entire drainage device is not affected by the patient's body position and the placement of the equipment, and can move with the patient, thereby preventing the connecting tube group from falling off due to pulling the connecting tube group when the patient moves, thereby ensuring the continuity of the drainage process and improving the comfort of the patient.

[0018] 2. The first bottle is used to collect the accumulated fluid or gas in the patient's chest cavity, and the second bottle is filled with water as a water seal chamber to prevent air from flowing back into the patient's body. The drainage speed and efficiency of the third bottle are controlled by adjusting the pressure of the negative pressure pump, so that the accumulated fluid or gas in the patient's body can be discharged. The overpressure protection component is used to balance the internal and external pressures of the drainage device to avoid harm to the patient due to excessive negative pressure. Foreign matter is filtered through the first filter to prevent foreign matter from entering the drainage device, thereby improving the safety of the patient.

[0019] 3. The staff pushes the connecting rod and the connecting piece through the pressing part to move and lift one side of the first filter screen. The staff releases the pressing part, the spring resets, and pulls the connecting piece back to the initial position, so that the staff can replace the first filter screen in time, thereby ensuring the normal operation of the drainage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of a drainage device for thoracic surgery according to the utility model;

[0021] Figure 2 This is a cross-sectional view of a drainage device for thoracic surgery of the utility model;

[0022] Figure 3 for Figure 2 A local enlarged view of point A;

[0023] Figure 4 It is a structural schematic diagram of the connecting sleeve of the utility model;

[0024] Figure 5 It is a partial schematic diagram of the connector of the utility model;

[0025] Figure 6 It is a cross-sectional view of the housing of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the installation sleeve of the utility model;

[0027] Figure 8 It is a cross-sectional view of the installation sleeve of the utility model;

[0028] Fig. 9 It is a structural schematic diagram of the installation slot of the utility model;

[0029] Fig.10 It is a structural schematic diagram of the limit groove of the utility model;

[0030] Fig.11 It is a structural schematic diagram of the support frame of the utility model;

[0031] in, Figures 1 to 11 The corresponding relationship between the reference numerals and component names in the figure is:

[0032] 10 movable base, 11 limiting protrusion, 12 first bottle body, 13 second bottle body, 14 third bottle body, 15 limiting groove, 16 first mounting cover, 17 second mounting cover, 18 third mounting cover, 19 drainage tube, 20 first hose, 21 second hose, 22 third hose, 23 negative pressure pump, 24 connecting port, 25 long tube, 26 connecting head, 27 first filter screen, 28 shell, 29 connecting piece, 30 spring, 31 pressing block, 32 limiting block, 33 connecting sleeve, 34 handle, 35 mounting sleeve, 36 second filter screen, 37 pressure plate, 38 circular groove, 39 giving way groove, 40 slide groove, 41 one-way valve, 42 flow monitoring sensor, 43 pressure sensor, 44 mounting groove, 45 support frame, 46 connecting rod. DETAILED DESCRIPTION

[0033] The following is a combination of specific implementation cases and attached Figure 1-11 The present invention is further described below, but the present invention is not limited to these embodiments.

[0034] A drainage device for thoracic surgery, such as Figure 1-11As shown, it includes: a mobile base 10, a drainage component, an installation component, a connecting pipe group, a negative pressure pump 23, an overpressure protection component and a pressing component; a pulley is provided at the bottom of the mobile base 10, a groove is provided at the top of the mobile base 10, and a plurality of limiting protrusions 11 are provided in the groove; the drainage component includes a first bottle body 12, a second bottle body 13 and a third bottle body 14, and the bottoms of the first bottle body 12, the second bottle body 13 and the third bottle body 14 are all provided with a plurality of limiting grooves 15, and the limiting protrusions 11 are embedded in the limiting grooves 15; the installation component includes a first installation cover 16, a second installation cover 17, a second installation cover 18, a second installation cover 19, a second installation cover 20, and a third installation cover 21; the drainage component includes a first bottle body 12, a second bottle body 13 and a third bottle body 14, and a plurality of limiting grooves 15 are provided at the bottoms of the first bottle body 12, the second bottle body 13 and the third bottle body 14, and the limiting protrusions 11 are embedded in the limiting grooves 15; the installation component includes a first installation cover 16, a second installation cover 19, a second installation cover 20, and a third installation cover 21; the drainage component includes a first bottle body 12, a second bottle body 13 and a third bottle body 14, and a plurality of limiting grooves 15 are provided at the bottoms of the first bottle body 12, the second bottle body 13 and the third bottle body 14, and the limiting protrusions 11 are embedded in the limiting grooves 15; the drainage component includes a first bottle body 12, a second bottle body 13 and a third bottle body The first mounting cover 16, the second mounting cover 17 and the third mounting cover 18 are respectively connected to the top openings of the first bottle body 12, the second bottle body 13 and the third bottle body 14 by threads, and the first mounting cover 16, the second mounting cover 17 and the third mounting cover 18 are all provided with a water inlet and a water outlet; the connecting pipe group includes a drainage pipe 19, a first hose 20, a second hose 21 and a third hose 22, the drainage pipe 19 is connected to the water inlet of the first mounting cover 16, and the two ends of the first hose 20 are respectively connected to the outlet of the first mounting cover 16 The water inlet is connected to the water inlet of the second mounting cover 17, the two ends of the second hose 21 are respectively connected to the water outlet of the second mounting cover 17 and the water inlet of the third mounting cover 18, and one end of the third hose 22 is connected to the water outlet of the third mounting cover 18; the negative pressure pump 23 is arranged on the top of the third mounting cover, and the negative pressure pump 23 is connected to the other end of the third hose 22; the overpressure protection component includes a connecting port 24, a long tube 25, a connecting head 26 and a first filter screen 27, the connecting port 24 is arranged at the third mounting cover 18, one end of the long tube 25 is connected to the connecting port 2 4 is connected to and embedded in the bottom of the third bottle body 14, the connecting head 26 is connected to the other end of the long tube 25, and the first filter screen 27 is clamped in the connecting head 26; the pressing assembly includes a shell 28, a connecting piece 29, a spring 30, a connecting rod 46 and a pressing portion, the shell 28 is arranged on one side of the connecting head 26, one end of the connecting piece 29 is in contact with the bottom surface of the first filter screen 27, the connecting piece 29, the connecting rod 46 and the pressing portion are connected in sequence, the spring 30 is wound around the outside of the connecting rod 46, and the two ends of the spring 30 are respectively connected to the connecting piece 29 and the inner wall of the shell 28.

[0035] By adopting the above technical solution, through the cooperation between the protrusion and the limiting groove 15, it is convenient for the staff to install any type of bottle body combination on the mobile base 10 according to the needs, so as to perform closed chest drainage. Moreover, since a pulley is provided at the bottom of the mobile base 10, the entire drainage device is not affected by the patient's body position and the placement position of the equipment, and can move with the patient, thereby avoiding the connection tube group being pulled off when the patient moves, thereby ensuring the continuity of the drainage process and improving the patient's comfort. The first bottle body 12 collects the effusion or gas in the patient's chest cavity, and the second bottle body 13 is filled with water as a water seal chamber to prevent air from flowing back into the patient's body. By adjusting the pressure of the negative pressure pump 23, the drainage speed and efficiency of the third bottle body 14 are controlled, thereby discharging the effusion or gas in the patient's body, and the overpressure protection component is used to balance the internal and external pressures of the drainage device to avoid excessive negative pressure causing harm to the patient. The first filter screen 27 is used to filter foreign matter to prevent foreign matter from entering the drainage device, thereby improving the safety of the patient.

[0036] Specifically, the third hose 22 maintains negative pressure under the action of the negative pressure pump 23, promotes continuous drainage of liquid or gas in the first chamber, and the long tube 25 allows air to enter the third chamber when the negative pressure in the third bottle body 14 is too large, thereby reducing the pressure on the first chamber and protecting the patient from harm caused by excessive negative pressure, thereby ensuring that the drainage device works effectively within a safe range and reducing the risk of complications.

[0037] The staff pushes the connecting rod 46 and the connecting piece 29 through the pressing part to move and lift up one side of the first filter 27 so as to replace the first filter 27. The staff releases the pressing part, the spring 30 resets, and pulls the connecting piece 29 back to the initial position, thereby facilitating the staff to replace the first filter 27 in time and ensuring the normal operation of the drainage device.

[0038] Specifically, the mounting cover is mounted on the bottle body through threads, thereby achieving the purpose of easy disassembly, so that the staff can regularly clean the bottle body and the mounting cover.

[0039] Specifically, by adopting the assembly method of the limiting protrusion 11 and the limiting groove 15 at the bottom of the bottle body, it is possible to assemble bottles of different models at will, and the purpose of facilitating quick disassembly or installation of the bottle body is achieved.

[0040] Specifically, the first bottle body 12 , the second bottle body 13 and the third bottle body 14 are all made of transparent materials, and scale lines are arranged on the surfaces of the bottle bodies.

[0041] In the embodiments of the present invention, Figure 1-11As shown, the pressing part includes: a pressing block 31 and a limiting block 32; the pressing block 31 is connected to the connecting piece 29, and at least part of the pressing block 31 is embedded in the shell 28; the surface of the limiting block 32 is provided with friction patterns, the limiting block 32 is connected to the pressing block 31, and the limiting block 32 is located on the outside of the shell 28.

[0042] The staff applies force to the limit block 32, so that the limit block 32 drives the pressing block 31 to move, and pushes the connecting rod 46 and the connecting piece 29 to move, so as to lift one side of the first filter screen 27, thereby facilitating the staff to replace the first filter screen 27 in time, and when the staff releases the force of the limit block 32, the spring 30 resets and pulls the connecting piece 29 back to the initial position, thereby facilitating the staff to replace the first filter screen 27 in time, thereby ensuring the normal operation of the drainage device.

[0043] Specifically, by providing friction lines on the pressing surface of the limit block 32 , the friction between the worker's hand and the limit block 32 is increased, and an anti-slip effect is achieved.

[0044] In the embodiments of the present invention, Figure 1-11 As shown, it also includes: a connecting sleeve 33 and a handle 34; the connecting sleeves 33 are respectively arranged on the outside of the drainage tube 19, the first hose 20, the second hose 21 and the third hose 22, and the connecting sleeves 33 are respectively sleeved on the outside of the water inlet and the water outlet; the handle 34 is connected to one end of the connecting sleeve 33; wherein the connecting sleeve 33 and the handle 34 are both elastic bodies.

[0045] When installing the drainage tube 19, the first hose 20, the second hose 21 and the third hose 22, the tubes are inserted into the water inlet or the water outlet, and the tubes are extended into the bottle body. At this time, the elastic deformation of the connecting sleeve 33 and the performance of having a certain friction force are utilized to set the connecting sleeve 33 on the outside of the water inlet or the water outlet, thereby achieving the purpose of quick installation; and when disassembly and replacement are required, the handle 34 is pulled hard to pull the connecting sleeve 33 out of the water inlet or the water outlet, thereby facilitating the staff to replace the tube.

[0046] Specifically, the elastic deformation and friction properties of the connecting sleeve 33 are utilized to prevent the drainage tube 19 from being pulled out of the water inlet or outlet accidentally when the patient moves his body, thereby affecting the continuity of the drainage process.

[0047] In the embodiments of the present invention, Figure 1-11As shown, it also includes: a mounting sleeve 35, a second filter screen 36, a pressure plate 37 and a circular groove 38; the mounting sleeve 35 is provided with a T-shaped groove, and the mounting sleeve 35 is arranged at the bottom of the drainage tube 19; the second filter screen 36 is embedded in the T-shaped groove of the mounting sleeve 35; the pressure plate 37 is embedded in the mounting sleeve 35, and the pressure plate 37 is fitted with the top surface of the second filter screen 36; the circular groove 38 is arranged on the pressure plate 37 through, and the circular groove 38 is opposite to the T-shaped groove; wherein the mounting sleeve 35 and the pressure plate 37 are both elastic bodies.

[0048] By sleeve-mounting the mounting sleeve 35 on the bottom of the drainage tube 19 and limiting the second filter screen 36 by the T-slot and the pressure plate 37, the second filter screen 36 is prevented from moving, thereby preventing pollutants and bacteria from entering the drainage device, thereby reducing the probability of infection.

[0049] In the embodiments of the present invention, Figure 1-11 As shown, it also includes: a clearance groove 39 and a slide groove 40; the clearance groove 39 is arranged on one side of the connecting head 26, and the connecting piece 29 is embedded in the clearance groove 39; the slide groove 40 is arranged on one side of the shell 28, and the diameter of the slide groove 40 is smaller than the diameter of the limit block 32.

[0050] The displacement groove 39 guides and limits the movement of the connecting piece 29 , and the slide groove 40 guides the pressing block 31 . Since the diameter of the slide groove 40 is smaller than the diameter of the limiting block 32 , the limiting block 32 is limited to prevent the limiting block 32 from entering the shell 28 .

[0051] In the embodiments of the present invention, Figure 1-11 As shown, it also includes: a one-way valve 41; the one-way valve 41 is respectively arranged at the drainage tube 19, the first hose 20, the second hose 21 and the third hose 22.

[0052] By providing the one-way valve 41, the flow of liquid or gas in the drainage tube 19, the first hose 20, the second hose 21 and the third hose 22 is restricted so that the liquid or gas can only flow in a set direction to avoid backflow.

[0053] In the embodiments of the present invention, Figure 1-11 As shown, it also includes: a flow monitoring sensor 42 and a pressure sensor 43; the flow monitoring sensor 42 is respectively arranged at the water outlet of the first installation cover 16, the second installation cover 17 and the third installation cover 18; the pressure sensor 43 is respectively arranged at the water inlet of the first installation cover 16, the second installation cover 17 and the third installation cover 18.

[0054] By using the pressure sensor 43 and the flow monitoring sensor 42 to detect the pressure inside the pipeline and the flow of liquid or gas, the staff can monitor the pressure and flow of the liquid in real time, thereby facilitating the staff to make adjustments according to actual conditions.

[0055] Specifically, the pressure sensor 43 and the flow monitoring sensor 42 are both conventional pressure sensors 43 and flow monitoring sensors 42 .

[0056] In the embodiment of the present utility model, Figure 1-11 As shown, it also includes: two mounting grooves 44 and a support frame 45; the two mounting grooves 44 are respectively arranged on the bottom wall of the third bottle body 14; the support frame 45 includes two support legs and a support portion, the two support legs are respectively embedded in the two mounting grooves 44, the support portion is penetrated by a positioning hole, and the long tube 25 is embedded in the positioning hole; wherein the support frame 45 is an elastomer.

[0057] The position of the support frame 45 is limited by the mounting groove 44, and the long tube 25 is inserted into the positioning hole, thereby limiting the position of the long tube 25 to prevent the long tube 25 from bending and affecting its effect on balancing the internal and external pressures.

[0058] Implementation process: By adopting the above technical solution, through the cooperation between the protrusion and the limiting groove 15, it is convenient for the staff to install any type of bottle body combination on the mobile base 10 according to the needs, so as to perform closed chest drainage. Moreover, since a pulley is provided at the bottom of the mobile base 10, the entire drainage device is not affected by the patient's body position and the placement position of the equipment, and can move with the patient, thereby avoiding the connection tube group being pulled off when the patient moves, thereby ensuring the continuity of the drainage process and improving the patient's comfort; the first bottle body 12 collects the effusion or gas in the patient's chest cavity, and the second bottle body 13 is filled with water as a water seal chamber to prevent air from flowing back into the patient's body, and by adjusting the pressure of the negative pressure pump 23, the drainage speed and efficiency of the third bottle body 14 are controlled, so that the effusion or gas in the patient's body is discharged, and the overpressure protection component is used to balance the internal and external pressures of the drainage device to avoid excessive negative pressure causing harm to the patient, and the first filter screen 27 is used to filter foreign matter to prevent foreign matter from entering the drainage device, thereby improving the safety of the patient.

[0059] The third hose 22 maintains negative pressure under the action of the negative pressure pump 23, promotes continuous drainage of liquid or gas in the first chamber, and the long tube 25 allows air to enter the third chamber when the negative pressure in the third bottle body 14 is too large, thereby reducing the pressure on the first chamber and protecting the patient from harm caused by excessive negative pressure, thereby ensuring that the drainage device works effectively within a safe range and reducing the risk of complications.

[0060] The staff pushes the connecting rod 46 and the connecting piece 29 through the pressing part to move and lift up one side of the first filter 27 so as to replace the first filter 27. The staff releases the pressing part, the spring 30 resets, and pulls the connecting piece 29 back to the initial position, thereby facilitating the staff to replace the first filter 27 in time and ensuring the normal operation of the drainage device.

[0061] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A drainage device for thoracic surgery, characterized in that: include: A mobile base, wherein a pulley is provided at the bottom of the mobile base, a groove is provided at the top of the mobile base, and a plurality of limiting protrusions are provided in the groove; A drainage assembly, the drainage assembly comprising a first bottle body, a second bottle body and a third bottle body, the bottoms of the first bottle body, the second bottle body and the third bottle body are each provided with a plurality of limiting grooves, and the limiting protrusions are embedded in the limiting grooves; An installation assembly, the installation assembly comprising a first installation cover, a second installation cover and a third installation cover, the first installation cover, the second installation cover and the third installation cover are respectively connected to the top openings of the first bottle body, the second bottle body and the third bottle body through threads, and the first installation cover, the second installation cover and the third installation cover are all provided with a water inlet and a water outlet; a connecting pipe group, the connecting pipe group comprising a drainage pipe, a first hose, a second hose and a third hose, the drainage pipe being connected to the water inlet of the first mounting cover, two ends of the first hose being connected to the water outlet of the first mounting cover and the water inlet of the second mounting cover respectively, two ends of the second hose being connected to the water outlet of the second mounting cover and the water inlet of the third mounting cover respectively, and one end of the third hose being connected to the water outlet of the third mounting cover; A negative pressure pump, which is arranged on the top of the third mounting cover and is connected to the other end of the third hose; An overpressure protection assembly, the overpressure protection assembly comprising a connection port, a long tube, a connection head and a first filter screen, the connection port being arranged at the third mounting cover, one end of the long tube being connected to the connection port and embedded in the bottom of the third bottle body, the connection head being connected to the other end of the long tube, and the first filter screen being clamped in the connection head; A pressing assembly, the pressing assembly includes a shell, a connecting piece, a spring, a connecting rod and a pressing portion, the shell is arranged on one side of the connecting head, one end of the connecting piece is in contact with the bottom surface of the first filter, the connecting piece, the connecting rod and the pressing portion are connected in sequence, the spring is wound around the outside of the connecting rod, and the two ends of the spring are respectively connected to the connecting piece and the inner wall of the shell.

2. A thoracic surgery drainage device according to claim 1, characterized in that: The pressing portion comprises: A pressing block, the pressing block is connected to the connecting rod, and at least a portion of the pressing block is embedded in the shell; A limit block, the surface of which is provided with friction lines, the limit block is connected to the pressing block, and the limit block is located outside the shell.

3. A thoracic surgery drainage device according to claim 2, characterized in that: Also includes: Connecting sleeves, which are respectively arranged on the outside of the drainage pipe, the first hose, the second hose and the third hose, and are respectively sleeved on the outside of the water inlet and the water outlet; A handle connected to one end of the connecting sleeve; Wherein, the connecting sleeve and the handle are both made of elastic bodies.

4. A thoracic surgery drainage device according to claim 3, characterized in that: Also includes: A mounting sleeve, wherein the mounting sleeve is provided with a T-shaped slot and the mounting sleeve is arranged at the bottom of the drainage tube; a second filter screen, the second filter screen being embedded in the T-slot of the mounting sleeve; A pressing plate, the pressing plate is embedded in the mounting sleeve and is in contact with the top surface of the second filter screen; A circular groove, which is arranged on the pressing plate and is opposite to the T-shaped groove; Wherein, the mounting sleeve and the pressing plate are both elastic bodies.

5. A thoracic surgery drainage device according to claim 4, characterized in that: Also includes: A clearance groove, the clearance groove is arranged on one side of the connector, and the connecting piece is embedded in the clearance groove; A slide groove is arranged on one side of the shell, and a diameter of the slide groove is smaller than a diameter of the limit block.

6. A thoracic surgery drainage device according to claim 5, characterized in that: Also includes: One-way valves are respectively arranged at the drainage tube, the first hose, the second hose and the third hose.

7. A thoracic surgery drainage device according to claim 6, characterized in that: Also includes: Flow monitoring sensors, which are respectively arranged at the water outlets of the first installation cover, the second installation cover and the third installation cover; Pressure sensors are respectively arranged at the water inlets of the first mounting cover, the second mounting cover and the third mounting cover.

8. A thoracic surgery drainage device according to claim 7, characterized in that: Also includes: Two mounting grooves, the two mounting grooves are respectively arranged on the bottom wall of the third bottle body; A support frame, the support frame comprising two support legs and a support portion, the two support legs are respectively embedded in the two mounting grooves, the support portion is penetrated by a positioning hole, and the long tube is embedded in the positioning hole; Wherein, the support frame is an elastomer.

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