A medical negative pressure host

Abstract

The present invention relates to a medical negative pressure main unit, which comprises: a shell assembly, wherein the shell assembly comprises a first shell and a first mounting side plate arranged on one side of the first shell, the first mounting side plate being provided with at least one sliding through hole, an air circuit assembly installed inside the shell assembly, the air circuit assembly comprising a negative pressure pump pipeline portion and a solenoid valve pipeline portion, the negative pressure pump pipeline portion comprising a first air circuit output port, the solenoid valve pipeline portion comprising a second air circuit output port, a drive assembly installed on the top of the shell assembly, the drive assembly comprising a pressing mechanism, the end of the pressing mechanism being provided with a connecting end portion, and a drive plate arranged to slide inside the first mounting side plate. In the medical negative pressure main unit disclosed by the present invention, the above-mentioned battery unit is assembled at the bottom portion of the shell assembly, the center of gravity of the entire medical negative pressure main unit is low, and the placement of the entire negative pressure main unit is more stable.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a medical negative pressure host. Background Art

[0002] When trauma or other difficult-to-heal wounds occur on the human body due to various reasons, the negative pressure pump inside a medical negative pressure machine can be used for medical treatment, pumping air to generate negative pressure at the wound, creating a negative pressure environment around the wound and accelerating blood circulation near the wound. Currently, the internal components of medical negative pressure machines on the market need to be optimized to make the internal structure design of the negative pressure machine more reasonable. Summary of the Invention

[0003] The present invention provides a medical negative pressure main unit, aiming to solve at least one of the technical problems existing in the prior art.

[0004] The technical solution of the present invention is a medical negative pressure host, which includes: a shell assembly, the shell assembly includes a first shell and a first mounting side plate arranged on one side of the first shell, the first mounting side plate is provided with at least one sliding through hole, an air circuit assembly installed inside the shell assembly, the air circuit assembly includes a negative pressure pump pipeline part and a solenoid valve pipeline part, the negative pressure pump pipeline part includes a first air circuit output port, the solenoid valve pipeline part includes a second air circuit output port, a drive assembly installed on the top of the shell assembly, the drive assembly includes a pressing mechanism, the end of the pressing mechanism is provided with a connecting end, and is arranged on the first A driving plate that slides on the inner side of the mounting side panel, one end of the driving plate is provided with at least one sliding block, a suction device is arranged on the outer side of the first mounting side panel, one side of the suction device is provided with a second mounting side panel, and the second mounting side panel is provided with at least one second bayonet, wherein the first air path output port and the second air path output port are respectively connected on the first mounting side panel, wherein the connecting end is connected to the driving plate to allow the pressing mechanism to drive the driving plate to slide on the inner side of the first mounting side panel, and wherein the second bayonet passes through the sliding through hole, and the sliding block is engaged with or separated from the second bayonet.

[0005] Furthermore, the shell assembly also includes a second shell, one side of which is fixedly connected to one side of the first shell, and also includes a battery part, which includes a battery bottom shell, and the interior of the battery bottom shell is provided with a plurality of battery accommodating cavities for loading batteries, and the top of the battery bottom shell is provided with a battery top shell for covering the battery, wherein the battery part is fixed on the bottom plates of the first shell and the second shell.

[0006] Furthermore, a plurality of first battery part limit blocks are provided on the inner side wall of the first shell, and a plurality of second battery part limit blocks are provided on the inner side wall of the second shell, wherein the two side surfaces and the top surface of the battery part are respectively contacted by the corresponding first battery part limit blocks and the second battery part limit blocks to play a limiting role.

[0007] Furthermore, it also includes a display screen, a button part and an electronic control main board, wherein the display screen and the button part are installed on the side of the second shell, and the electronic control main board is fixed to the inside of the first shell by bolts. The electronic control main board is located above the battery part and adjacent to the display screen, and wherein the display screen and the button part are electrically connected to the electronic control main board respectively through flexible electrical circuits.

[0008] Furthermore, it also includes a handle part and a handle rope, and handle mounting holes are provided at both ends of the handle part, and movable buckles are connected to both ends of the handle rope. First handle bolt mounting blocks are respectively provided on both sides of the top of the first shell, and second handle bolt mounting blocks are respectively provided on both sides of the top of the second shell, wherein the handle part spans the top surfaces of the first shell and the second shell, and a pair of the handle mounting holes are fixedly connected to the first handle bolt mounting block and the second handle bolt mounting block by bolts, and wherein a pair of the movable buckles are respectively buckled and detachably connected with a pair of the handle parts.

[0009] Furthermore, the cavity and the first buffer air outlet pipe, the air path output end and the air path input end of the negative pressure pump are respectively connected to one end of the negative pressure pump exhaust pipe and one end of the negative pressure pump inlet pipe, the air path output end and the air path input end of the first buffer cavity are respectively connected to the other end of the negative pressure pump inlet pipe and one end of the first buffer air outlet pipe, the other end of the first buffer air outlet pipe is the first air path output port, the inner bottom wall of the shell assembly is provided with an exhaust pipe through hole, and the first mounting side panel begins to have a first buffer pipe through hole, wherein the other end of the negative pressure pump exhaust pipe is connected to the exhaust pipe through hole, and the first air path output port is connected to the first buffer pipe through hole.

[0010] Furthermore, a plurality of soft pads are provided on the bottom surface of the shell assembly, so that an air intake gap exists between the bottom surface of the shell assembly and the external ground plane and is connected to the end of the negative pressure pump exhaust pipe.

[0011] Furthermore, a press-mounting through hole is opened on the surface of the shell assembly, and the pressing mechanism includes a press-mounting shell and a press key embedded in the upper part of the press-mounting shell, and the bottom of the press key is transmission-connected to the connecting end.

[0012] Furthermore, a first mounting groove is provided at one inner end of the first shell, a second mounting groove is provided at one inner end of the second shell, and outer edges of the first mounting side plate are respectively assembled with the first mounting groove and the second mounting groove.

[0013] Furthermore, the display screen is an LCD display screen.

[0014] The beneficial effects of the present invention are:

[0015] 1. In the above-mentioned medical negative pressure main unit, the negative pressure pump pipeline part and the solenoid valve pipeline part are connected to the first mounting side panel through the output air port, and the two interfaces for external negative pressure are connected to the same board. Since the first mounting side panel and the shell assembly are separated, when there is a problem with the air tightness of one of the output ports, maintenance personnel can easily disassemble the first mounting side panel to facilitate replacement or repair of the interface on the first mounting side panel.

[0016] 2. The above-mentioned medical negative pressure host is also assembled and used in conjunction with an aspirator. The aspirator cooperates with the sliding through hole on the first mounting side panel through the second bayonet on its second mounting side panel. The user presses the pressing mechanism on the drive assembly to link the drive plate so that the sliding block on the drive plate cooperates with the second bayonet to connect or separate, making it convenient for the user to disassemble or connect the aspirator or the host.

[0017] 3. The battery unit is assembled at the bottom of the housing assembly, and the center of gravity of the entire medical negative pressure host is lower, making the placement of the entire negative pressure host more stable.

[0018] 4. The bottom of the medical negative pressure main unit is padded with a soft pad to prevent it from being scratched and to support the entire main unit. The negative pressure pump exhaust pipe at the bottom can be ventilated and is distributed on different surfaces of the shell assembly with the first buffer outlet pipe, which is a reasonable design. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 2 is a general schematic diagram of a medical negative pressure host according to an embodiment of the present invention.

[0020] Figure 2 2. It is a front view of the internal details of the medical negative pressure main unit according to an embodiment of the present invention.

[0021] Figure 3 3D is a perspective view of the internal details of a medical negative pressure main unit according to an embodiment of the present invention.

[0022] Figure 4 FIG. 4 is a side view of the internal details of a medical negative pressure main unit according to an embodiment of the present invention.

[0023] Figure 5 3 is a detailed schematic diagram of the first shell according to an embodiment of the present invention.

[0024] Figure 6 3 is a detailed schematic diagram of the second shell and its appearance components according to an embodiment of the present invention.

[0025] Figure 7 1 is a detailed schematic diagram of the second mounting side plate, the driving plate and the assembly details of the second mounting side plate according to an embodiment of the present invention.

[0026] Figure 8 Detailed schematic diagram of an air path assembly according to an embodiment of the present invention.

[0027] Figure 9 is a longitudinal sectional view of a drive assembly according to an embodiment of the present invention.

[0028] Figure 10 3. It is a detailed schematic diagram of the connection between the connecting plate and the driving plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict.

[0030] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, terms such as "upper," "lower," "left," "right," "top," and "bottom" used in this disclosure are intended solely to describe the relative positions of the components of the disclosure as shown in the accompanying drawings.

[0031] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments and are not intended to limit the present invention. The term "and / or" as used herein includes any combination of one or more of the related listed items.

[0032] It should be understood that although the terms first, second, third, etc. may be used to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element without departing from the scope of the present disclosure.

[0033] Reference Figures 1 to 10 As shown, in some embodiments, the present invention discloses a medical negative pressure host, comprising:

[0034] Reference Figure 1 The housing assembly 1000. Figure 3 The housing assembly 1000 includes a first housing 1100 and a first mounting side plate 1300 disposed on one side of the first housing 1100. The first mounting side plate 1300 is provided with at least one sliding through hole 1310. Figure 7 In the embodiment, two sliding through holes 1310 are provided on the first mounting side plate 1300 .

[0035] Reference Figure 2 As shown, the gas circuit assembly 4000 is installed inside the housing assembly 1000. The gas circuit assembly 4000 includes a negative pressure pump pipeline part and a solenoid valve pipeline part. The negative pressure pump pipeline part includes a first gas output port 4002, and the solenoid valve pipeline part includes a second gas output port 4004. Figure 2 The inner bottom wall of the housing assembly 1000 is provided with an exhaust pipe through-hole 1001, and the first mounting side plate 1300 begins with a first buffer pipe through-hole 1370. The other end of the negative pressure pump exhaust pipe 4110 is connected to the exhaust pipe through-hole 1001, and the first gas output port 4002 is connected to the first buffer pipe through-hole 1370.

[0036] Specifically, refer to Figure 8 As shown, the negative pressure pump pipeline includes a negative pressure pump 4100, a negative pressure pump exhaust pipe 4110, a negative pressure pump air inlet pipe 4120, a first buffer chamber 4200, and a first buffer air outlet pipe 4210. The air output and air input ends of the negative pressure pump 4100 are connected to one end of the negative pressure pump exhaust pipe 4110 and one end of the negative pressure pump air inlet pipe 4120, respectively. The air output and air input ends of the first buffer chamber 4200 are connected to the other end of the negative pressure pump air inlet pipe 4120 and one end of the first buffer air outlet pipe 4210, respectively. The other end of the first buffer air outlet pipe 4210 is the first air output port 4002. The negative pressure generated by the negative pressure pump 4100 in this circuit is output to the outside of the negative pressure main unit through the first air output port 4002 at the end of the negative pressure pump air inlet pipe 4120.

[0037] Continue to refer to Figure 8 As shown, the control end of the solenoid valve 4300 is connected to one end of the solenoid valve output pipe 4310. The air output and air input ends of the second buffer chamber 4400 are connected to one end of the second buffer outlet pipe 4410 and the other end of the solenoid valve output pipe 4310, respectively. The second buffer outlet pipe 4410 connected to this path of the solenoid valve 4300 also works together with the negative pressure pump 4100 to the outside of the negative pressure main unit. The second air output port 4004 at the end of the first buffer outlet pipe 4210 acts on the space outside the housing assembly 1000.

[0038] Reference Figure 7The first gas output port 4002 and the second gas output port 4004 are connected to the first mounting side plate 1300 respectively, and the first gas output port 4002 is correspondingly connected to the first buffer tube through hole 1370 and the second buffer tube through hole 1380.

[0039] The air circuit assembly of the above-mentioned negative pressure machine is divided into two paths, one of which has a negative pressure pump combined with the negative pressure generated by the first buffer chamber to have a larger pressure adjustment range; the other solenoid valve output pipe controls whether the second air circuit buffer chamber is opened according to the negative pressure of the negative pressure pump. When the negative pressure value output by the negative pressure pump is too high, the second air circuit buffer chamber is opened, so that the negative pressure pump is relieved through the solenoid valve control combined with the control, so that the output negative pressure value can have a larger adjustment space according to demand.

[0040] Reference Figure 1 , the drive assembly 3000 is installed on the top of the shell assembly 1000.

[0041] Reference Figure 9 Combine Figure 10 The driving assembly 3000 includes a pressing mechanism 3100 , and a connecting end 3133 is provided at the end of the pressing mechanism 3100 .

[0042] Reference Figure 9 A driving plate 1400 is provided to slide inside the first mounting side plate 1300 , and at least one sliding block 1420 is provided at one end of the driving plate 1400 . The driving plate 1400 in the figure is provided with a pair of sliding blocks.

[0043] Reference Figure 2 The suction device 2000 is arranged on the outside of the first mounting side plate 1300, and a second mounting side plate 2100 is provided on one side of the suction device 2000. The second mounting side plate 2100 is provided with at least one second bayonet 2120. The second mounting side plate 2100 in the figure is provided with two second bayonet 2120.

[0044] Reference Figure 10 The connecting end portion 3133 is connected to the driving plate 1400 to allow the pressing mechanism 3100 to drive the driving plate 1400 to slide inside the first mounting side plate 1300. The second bayonet 2120 passes through the sliding through hole 1310, and the sliding block 1420 engages with the second bayonet 2120 to connect or separate.

[0045] In the above-mentioned medical negative pressure host, the negative pressure pump pipeline part and the solenoid valve pipeline part are connected to the first mounting side panel through the output air path port, and the two interfaces for external negative pressure are connected to the same board. Since the first mounting side panel and the shell assembly are separated, when there is a problem with the air tightness of one of the output ports, maintenance personnel can easily disassemble the first mounting side panel and replace or repair the interface on the first mounting side panel.

[0046] The above-mentioned medical negative pressure host is also assembled and used in conjunction with an aspirator. The aspirator cooperates with the sliding through hole on the first mounting side panel through the second bayonet on its second mounting side panel. The user presses the pressing mechanism on the drive assembly to link the drive plate, so that the sliding block on the drive plate cooperates with the second bayonet to engage or separate, making it convenient for the user to disassemble or connect the aspirator or host.

[0047] Reference Figure 6 The housing assembly 1000 further includes a second housing 1200, one side of which is fixedly coupled to a side of the first housing 1100. The housing assembly 1000 also includes a battery unit 6400, which includes a battery bottom shell 6410. The battery bottom shell 6410 has a plurality of battery accommodating cavities 6411 for loading batteries, and a battery top shell 6420 for covering the batteries, located on top of the battery bottom shell 6410. The battery unit 6400 is fixed to the bottom plates of the first housing 1100 and the second housing 1200.

[0048] The battery unit is assembled at the bottom portion of the housing assembly, the center of gravity of the entire medical negative pressure host is lower, and the placement of the entire negative pressure host is more stable.

[0049] In order to make the connection between the battery and the two shells more stable, refer to Figure 5 and Figure 6 , a plurality of first battery portion limiting blocks 1140 are provided on the inner side wall of the first shell 1100. Figure 5 , three first battery portion limiting blocks 1140 are distributed on the inner side wall of the first shell 1100 corresponding to the two sides and the top of the battery portion. Figure 6 The inner sidewall of the second housing 1200 is provided with a plurality of second battery compartment stoppers 1240. Three second battery compartment stoppers 1240 are located on the inner sidewall of the second housing 1200, corresponding to the sides and top of the battery compartment. The side surfaces and top of the battery compartment 6400 are contacted by the corresponding first battery compartment stoppers 1140 and second battery compartment stoppers 1240, respectively, to provide a retaining effect.

[0050] The interior of the shell is limited and matched with three positions of the battery part through three positions on both sides and the top, so that the battery part is not easy to loosen or produce abnormal noise in the shell assembly.

[0051] Reference Figure 1 Combine Figure 4 The host also includes the following electrical components: a display screen 6200, a button unit 6300, and an electronic control motherboard 6100. The display screen 6200 and the button unit 6300 are mounted on the side of the second housing 1200. The electronic control motherboard 6100 is fixed to the interior of the first housing 1100 via bolts. The electronic control motherboard 6100 is located above the battery unit 6400 and adjacent to the display screen 6200. The display screen 6200 and the button unit 6300 are electrically connected to the electronic control motherboard 6100 via flexible electrical circuits. In some embodiments, the display screen 6200 is an LCD display screen. The display screen of the host can display parameters such as air pressure values. The button unit can be set to turn on or off the electrical operation of the host, thereby increasing the functionality of the medical negative pressure host.

[0052] Reference Figure 1 、 2 As shown, in order to facilitate the user to carry the medical negative pressure host, the above-mentioned host also includes a handle part 7100 and a handle rope 7200. Handle mounting holes 7110 are provided at both ends of the handle part 7100, and movable buckles 7210 are connected at both ends of the handle rope 7200.

[0053] Reference Figure 2 , first handle bolt mounting blocks 1150 are respectively provided on both sides of the top of the first housing 1100. Figure 3 , second handle bolt mounting blocks 1250 are respectively provided on both sides of the top of the second housing 1200. The handle portion 7100 spans the top surfaces of the first housing 1100 and the second housing 1200. A pair of handle mounting holes 7110 are respectively fixedly connected to the first handle bolt mounting block 1150 and the second handle bolt mounting block 1250 by bolts. The ends of the above-mentioned handle portion are fixed to the two sides of the two housings by bolts. A pair of movable buckles 7210 are respectively buckled and detachably connected to the pair of handle portions 7100, and the user can carry the host to other places for use via the handle rope.

[0054] Reference Figure 3 The bottom surface of the housing assembly 1000 is equipped with multiple soft pads 1002, creating an air intake gap between the bottom surface of the housing assembly 1000 and the external ground plane, connecting the end of the negative pressure pump exhaust pipe 4110. The bottom of the medical negative pressure mainframe is padded by soft pads, making it less susceptible to scratches while also supporting the entire mainframe. The bottom negative pressure pump exhaust pipe allows for ventilation and is distributed on different surfaces of the housing assembly from the first buffer outlet pipe, demonstrating a rational design.

[0055] Reference Figure 5 and Figure 6The surface of the housing assembly 1000 is provided with a press-fit through hole 1003 . The press mechanism 3100 includes a press-fit housing 3110 and a press key 3120 fitted with the upper portion of the press-fit housing 3110 . The bottom of the press key 3120 is in transmission connection with the connecting end 3133 .

[0056] Reference Figure 9 Specifically, the pressing mechanism 3100 includes a pressing housing 3110 with an upper opening, a pressing key 3120, and a first spring 3140. A spring retaining post 3112 is provided on the inner bottom wall of the pressing housing 3110. Hinge mounting notches 3113 are provided on both side walls of the pressing housing 3110. The bottom of the first spring 3140 is sleeved over the spring retaining post 3112. The top of the first spring 3140 is sequentially connected to one end of a connecting plate 3130 and the bottom of the pressing key 3120. Hinge posts 3132 are provided on both sides of the connecting plate 3130, and the hinge posts 3132 are rotatably connected to the hinge mounting notches 3113.

[0057] Reference Figure 10 A mounting port 1410 is provided at the top of the driving plate 1400, and the end connecting end portion 3133 of the connecting plate 3130 is connected to the mounting port 1410, so that the pressing mechanism 3100 is linked to one side of the connecting plate 3130, driving the end portion of the connecting plate 3130 to make the driving plate 1400 slide on the inner surface of the first mounting side plate 1300.

[0058] When the suction device needs to be disassembled from the negative pressure host, the operator first presses the pressing mechanism, and the connecting end of the connecting plate at the end of the pressing mechanism is linked to the driving plate to tilt up, so that the sliding block on the driving plate and the second bayonet are disengaged from each other, and the user takes out the suction device for cleaning; when the suction device needs to be assembled with the negative pressure host, the operator also presses the pressing mechanism first, and the connecting plate inside the pressing mechanism is linked to the driving plate to tilt up. When the second bayonet passes through the second sliding through hole, the user releases the pressing mechanism, and the connecting plate is linked to the driving plate to reset, so that the sliding block on the driving plate is engaged and connected with the second bayonet.

[0059] Reference Figure 5 and Figure 6 A first mounting groove 1170 is defined at one end of the interior of the first housing 1100, and a second mounting groove 1270 is defined at one end of the interior of the second housing 1200. The outer edges of the first mounting side panel 1300 mate with the first mounting groove 1170 and the second mounting groove 1270, respectively. The first mounting side panel mates with the mounting grooves of the two housings, leaving little gap, ensuring good sealing performance for the housings and making future replacement of the first mounting side panel easier.

[0060] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the aforementioned embodiments. As long as the technical effects of the present invention are achieved by the same means, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure. Within the scope of protection of the present invention, its technical solutions and / or implementation methods may be modified and varied in various ways.

Claims

1. A medical negative pressure host, characterized in that: include: A housing assembly (1000) comprising a first housing (1100) and a first mounting side plate (1300) disposed on one side of the first housing (1100), wherein the first mounting side plate (1300) is provided with at least one sliding through hole (1310). An air circuit assembly (4000) is installed inside the housing assembly (1000), the air circuit assembly (4000) comprising a negative pressure pump pipeline portion and a solenoid valve pipeline portion, the negative pressure pump pipeline portion comprising a first air circuit output port (4002), the solenoid valve pipeline portion comprising a second air circuit output port (4004), A driving assembly (3000) is mounted on the top of the housing assembly (1000), wherein the driving assembly (3000) includes a pressing mechanism (3100), wherein a connecting end (3133) is provided at the end of the pressing mechanism (3100). A driving plate (1400) is provided to slide inside the first mounting side plate (1300), and one end of the driving plate (1400) is provided with at least one sliding block (1420). A suction device (2000) is arranged outside the first mounting side plate (1300), a second mounting side plate (2100) is provided on one side of the suction device (2000), and at least one second bayonet (2120) is provided on the second mounting side plate (2100). The first mounting side plate (1300) is provided with a first buffer tube through hole (1370) and a second buffer tube through hole (1380). The first gas output port (4002) and the second gas output port (4004) are respectively connected to the first buffer tube through hole (1370) and the second buffer tube through hole (1380) on the first mounting side plate (1300). The connecting end portion (3133) is connected to the driving plate (1400) to allow the pressing mechanism (3100) to drive the driving plate (1400) to slide inside the first mounting side plate (1300). And wherein, the second bayonet (2120) passes through the sliding through hole (1310), and the sliding block (1420) is engaged with the second bayonet (2120) to connect or separate.

2. The medical negative pressure main unit according to claim 1, characterized in that: The housing assembly (1000) further includes a second housing (1200), one side of the second housing (1200) being fixedly connected to one side of the first housing (1100). The battery unit (6400) further comprises a battery bottom shell (6410), wherein the battery bottom shell (6410) is provided with a plurality of battery receiving cavities (6411) for loading batteries, and a battery top shell (6420) for covering the batteries is provided on the top of the battery bottom shell (6410). The battery unit (6400) is fixed on the bottom plates of the first shell (1100) and the second shell (1200).

3. The medical negative pressure main unit according to claim 2, characterized in that: A plurality of first battery portion limiting blocks (1140) are provided on the inner side wall of the first shell (1100), and a plurality of second battery portion limiting blocks (1240) are provided on the inner side wall of the second shell (1200). The two side surfaces and the top surface of the battery part (6400) are in contact with the corresponding first battery part limit block (1140) and the second battery part limit block (1240) respectively.

4. The medical negative pressure main unit according to claim 3, characterized in that: It also includes a display screen (6200), a button unit (6300) and an electronic control mainboard (6100). The display screen (6200) and the button unit (6300) are mounted on the side of the second housing (1200), and the electronic control mainboard (6100) is fixed to the inside of the first housing (1100) by bolts. The electronic control mainboard (6100) is located above the battery unit (6400) and adjacent to the display screen (6200). Furthermore, the display screen (6200) and the button portion (6300) are electrically connected to the electronic control mainboard (6100) through flexible electrical circuits.

5. The medical negative pressure main unit according to claim 3, characterized in that: It also includes a handle portion (7100) and a handle rope (7200), wherein both ends of the handle portion (7100) are provided with handle mounting holes (7110), and both ends of the handle rope (7200) are connected with movable buckles (7210). The first housing (1100) is provided with first handle bolt mounting blocks (1150) on both sides of the top, and the second housing (1200) is provided with second handle bolt mounting blocks (1250) on both sides of the top. The handle portion (7100) spans the top surfaces of the first shell (1100) and the second shell (1200), and a pair of handle mounting holes (7110) are fixedly connected to the first handle bolt mounting block (1150) and the second handle bolt mounting block (1250) respectively through bolts. And wherein, a pair of movable buckles (7210) are respectively buckled and detachably connected with a pair of handle parts (7100).

6. The medical negative pressure main unit according to claim 1, characterized in that: The negative pressure pump pipeline portion includes a negative pressure pump (4100), a negative pressure pump exhaust pipe (4110), a negative pressure pump air inlet pipe (4120), a first buffer cavity (4200) and a first buffer air outlet pipe (4210); the air path output end and the air path input end of the negative pressure pump (4100) are respectively connected to one end of the negative pressure pump exhaust pipe (4110) and one end of the negative pressure pump air inlet pipe (4120); the air path output end and the air path input end of the first buffer cavity (4200) are respectively connected to the other end of the negative pressure pump air inlet pipe (4120) and one end of the first buffer air outlet pipe (4210); the other end of the first buffer air outlet pipe (4210) is the first air path output port (4002); The inner bottom wall of the housing assembly (1000) is provided with an exhaust pipe through hole (1001). Wherein, the other end of the negative pressure pump exhaust pipe (4110) is connected to the exhaust pipe through hole (1001).

7. The medical negative pressure main unit according to claim 6, characterized in that: The bottom surface of the shell assembly (1000) is provided with a plurality of soft pads (1002), so that an air intake gap exists between the bottom surface of the shell assembly (1000) and the external ground plane, and the air intake gap is connected to the end of the negative pressure pump exhaust pipe (4110).

8. The medical negative pressure main unit according to claim 1, characterized in that: The surface of the housing assembly (1000) is provided with a press-fitting through hole (1003). The pressing mechanism (3100) includes a pressing mounting shell (3110) and a pressing key (3120) embedded in the upper portion of the pressing mounting shell (3110), and the bottom of the pressing key (3120) is transmission-connected to the connecting end (3133).

9. The medical negative pressure main unit according to claim 2, characterized in that: A first mounting groove (1170) is provided at one end of the interior of the first shell (1100), a second mounting groove (1270) is provided at one end of the interior of the second shell (1200), and the outer edge of the first mounting side plate (1300) is respectively assembled with the first mounting groove (1170) and the second mounting groove (1270).

10. The medical negative pressure main unit according to claim 4, characterized in that: The display screen (6200) is an LCD display screen.

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