A connection structure for a medical negative pressure aspirator

Abstract

The present invention relates to a connection structure of a medical negative pressure aspirator, which comprises: a negative pressure main unit, the negative pressure main unit comprising a shell assembly and a first mounting side plate arranged on one side of the shell assembly, the first mounting side plate being provided with a second sliding through hole, a driving plate arranged on the inner side surface of the first mounting side plate, the top and bottom of the driving plate being provided with a mounting port and a sliding block respectively, a driving assembly arranged on the shell assembly, the driving assembly comprising a pressing mechanism and a connecting plate installed inside the pressing mechanism and linked thereto, an aspirator arranged adjacent to the first mounting side plate, and a second mounting side plate being provided on one side of the aspirator. The connection structure of the medical negative pressure aspirator disclosed in the present invention is convenient for disassembly and installation of the aspirator in conjunction with the negative pressure main unit, and the above-mentioned engaging structure makes it difficult for the connection between the aspirator and the negative pressure main unit to become loose, and the two main components are not likely to produce abnormal noises when carried by the user.

Description

Technical Field

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

[0002] When trauma or other difficult-to-heal wounds occur on the human body due to various reasons, a medical vacuum pump can be used to extract air from the wound, creating a negative pressure environment and accelerating blood circulation near the wound. A vacuum unit is usually used in conjunction with an aspirator, but the connection between the aspirator and the vacuum unit is complex, making it difficult to remove the aspirator from the unit for cleaning. Summary of the Invention

[0003] The present invention provides a connection structure of a medical negative pressure aspirator, 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 connection structure of a medical negative pressure aspirator, which includes: a negative pressure main unit, the negative pressure main unit includes a housing assembly and a first mounting side plate arranged on one side of the housing assembly, the first mounting side plate is provided with a second sliding through hole, a driving plate arranged on the inner side of the first mounting side plate, the top and bottom of the driving plate are respectively provided with a mounting port and a sliding block, a driving assembly arranged on the housing assembly, the driving assembly includes a pressing mechanism and a connecting plate installed inside the pressing mechanism and linked therewith, an aspirator arranged adjacent to the first mounting side plate, a second mounting side plate is provided on one side of the aspirator, and a second bayonet is provided on the outer side of the second mounting side plate, wherein the end of the connecting plate is connected to the mounting port, so that the pressing mechanism is linked to one side of the connecting plate, driving the end of the connecting plate to slide the driving plate on the inner side of the first mounting side plate, wherein the second sliding through hole is arranged corresponding to the position of the sliding block, and wherein, when the second bayonet passes through the second sliding through hole, the sliding block is engaged and connected with the second bayonet; when the second bayonet is disengaged from the second sliding through hole, the sliding block and the second bayonet are disengaged from each other.

[0005] Furthermore, a first sliding through hole is provided on the first mounting side panel, and the first sliding through hole and the second sliding through hole are distributed on both sides of the first mounting side panel. A first through hole is also provided on the driving plate, and the first through hole is located between the mounting port and the sliding block. A first bayonet is also provided on the outer side surface of the second mounting side panel, and the first bayonet and the second bayonet are distributed on both sides of the second mounting side panel. A limiting portion is provided at the bottom end of the connecting plate, wherein, when the first bayonet passes through the first bayonet and the first through hole in sequence, the limiting portion is engaged and connected with the first bayonet; when the first bayonet is separated from the first through hole and the first bayonet in sequence, the limiting portion and the first bayonet are separated from each other.

[0006] Furthermore, the pressing mechanism includes a pressing installation shell with an upper opening, a pressing key and a first spring. The inner bottom wall of the pressing installation shell is provided with a spring limiting column, and the two side walls of the pressing installation shell are provided with a hinged installation notch. The bottom of the first spring is sleeved on the spring limiting column. The top of the first spring is connected to one end of the connecting plate and the bottom of the pressing key in sequence. Hinge columns are provided on both sides of the connecting plate. The hinge columns are rotatably connected with the hinged installation notch, wherein the pressing installation shell is embedded on the top of the shell assembly.

[0007] Furthermore, a first press-mounting port and a second press-mounting port are respectively provided on both sides of the press-mounting shell, and the shell assembly includes a first shell and a second shell fixedly connected to the first shell, and a first connecting column and a second connecting column are respectively provided inside the first shell, wherein the press-mounting shell is embedded in the top shell of the first shell and the second shell, and the first press-mounting port and the second press-mounting port are respectively fixed to the first connecting column and the second connecting column by bolts.

[0008] Furthermore, a sliding groove is provided on the inner side of the first mounting side plate, and the drive plate is embedded in the sliding groove. It also includes a first baffle, wherein the first baffle is arranged at an adjacent position on the outer side surface of the root of the drive plate to limit the drive plate from escaping from the sliding groove, and the two ends of the first baffle are fixedly connected to the outer side surface of the first mounting side plate.

[0009] Furthermore, it includes a second spring, wherein two ends of the second spring are fixedly connected to the connecting columns on the outer surface of the driving plate and the connecting columns on the outer surface of the first blocking piece respectively.

[0010] Furthermore, it also includes a second baffle, wherein the second baffle is arranged at an adjacent position on the outer side surface of the middle part of the driving plate to limit the driving plate from escaping from the sliding groove, and the two ends of the second baffle are fixedly connected to the outer side surface of the first mounting side plate.

[0011] Furthermore, the sliding blocks are respectively provided at both ends of the bottom of the driving plate, wherein a pair of the sliding blocks are provided at positions corresponding to a pair of the second sliding through holes.

[0012] Furthermore, it also includes a first trachea and a second trachea, and the outer side of the suction device is respectively provided with a first trachea output port and a second trachea output port, wherein one end of the first trachea is connected to the first trachea output port, and the other end of the first trachea is used to output negative air pressure to act on the wound on the human body, and one end of the second trachea is connected to the second trachea output port, and the other end of the second trachea is used to collect the negative air pressure value near the wound on the human body.

[0013] Furthermore, the first air pipe output port and the second air pipe output port are arranged on the first mounting side panel.

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

[0015] 1. When the aspirator needs to be disassembled from the negative pressure main unit, the operator first presses the pressing mechanism, and the connecting plate inside 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 separated from each other, and the user takes out the aspirator for cleaning; for another example, if the aspirator needs to be assembled with the negative pressure main unit, the operator also first presses the pressing mechanism, 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 and the second bayonet are engaged and connected. The aspirator is easy to disassemble and install with the negative pressure main unit. The above-mentioned engaging structure makes it difficult for the connection between the aspirator and the negative pressure main unit to loosen, and the two main components are not likely to produce abnormal noise when carried by the user.

[0016] 2. The second mounting side plate and the connecting plate are detachable. The stopper on the connecting plate engages with the first bayonet, which then engages with the second sliding through-hole on the second mounting side plate. The two bayonet structures are spaced farther apart, making the connection between the suction device and the negative pressure main unit more stable and less likely to loosen. Furthermore, the stopper corresponding to the first bayonet and the sliding block on the other drive plate are located in separate parts. Even if one clamping part is damaged, the other can still be used independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a general schematic diagram of the assembly of a negative pressure main unit and a suction device according to an embodiment of the present invention.

[0018] Figure 2 This is a three-dimensional diagram of a negative pressure main unit assembled with a suction device according to an embodiment of the present invention.

[0019] Figure 32 is a side view of a negative pressure main unit according to an embodiment of the present invention.

[0020] Figure 4 1 is a detailed schematic diagram of the coordinated assembly of the second mounting side plate, the driving plate and the first baffle according to an embodiment of the present invention.

[0021] Figure 5 3 is a detailed schematic diagram of the first mounting side panel according to an embodiment of the present invention.

[0022] Figure 6 Detailed schematic diagram of an attractor according to an embodiment of the present invention.

[0023] Figure 7 is a front view of a drive assembly according to an embodiment of the present invention.

[0024] Figure 8 is a cross-sectional view of a drive assembly according to an embodiment of the present invention.

[0025] Figure 9 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.

[0026] Figure 10 It is a detailed schematic diagram of the assembly of the second mounting side plate and the driving plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Reference Figures 1 to 10 In some embodiments, the present invention discloses a connection structure of a medical negative pressure aspirator, comprising:

[0032] Refer to 1 to Figure 3 The negative pressure host shown in the figure includes a housing assembly 1000 and a first mounting side plate 1300 arranged on one side of the housing assembly 1000. A second sliding through hole 1320 is opened on the first mounting side plate 1300.

[0033] Refer to his 2 combination Figure 9 As shown, the driving plate 1400 is arranged on the inner side surface of the first installation side plate 1300, and the top and bottom of the driving plate 1400 are respectively provided with a mounting opening 1410 and a sliding block 1420.

[0034] Reference Figure 2 Combine Figure 9 As shown, the driving assembly 3000 is arranged on the housing assembly 1000, and the driving assembly 3000 includes a pressing mechanism 3100 and a connecting plate 3130 installed inside the pressing mechanism 3100 and linked thereto.

[0035] Reference Figure 2 Combine Figure 6 As shown, the suction device 2000 is arranged adjacent to the first mounting side plate 1300 , and a second mounting side plate 2100 is provided on one side of the suction device 2000 , and a second bayonet 2120 is provided on the outer side surface of the second mounting side plate 2100 .

[0036] Reference Figure 9 Combine Figure 8 As shown, the end of the connecting plate 3130 inside the driving assembly is connected to the mounting port 1410 , so that the pressing mechanism 3100 links one side of the connecting plate 3130 , driving the end of the connecting plate 3130 to make the driving plate 1400 slide on the inner side surface of the first mounting side plate 1300 .

[0037] Reference Figure 6 gather Figure 9 As shown, the second sliding through hole 1320 and the sliding block 1420 are arranged correspondingly.

[0038] Reference Figure 10As shown, when the second mounting side plate 2100 on the suction device 2000 is installed or disassembled relative to the driving plate 1400 as shown below, when the second bayonet 2120 passes through the second sliding through hole 1320, the sliding block 1420 is engaged and connected with the second bayonet 2120; when the second bayonet 2120 is disengaged from the second sliding through hole 1320, the sliding block 1420 and the second bayonet 2120 are disengaged from each other.

[0039] For example, when the aspirator needs to be disassembled from the negative pressure host, the operator first presses the pressing mechanism, and the connecting plate inside 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 separated from each other, and the user takes out the aspirator for cleaning; for another example, if the aspirator needs to be assembled with the negative pressure host, the operator also first presses the pressing mechanism, 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 and the second bayonet are engaged and connected. The above-mentioned aspirator is easy to disassemble and install when combined with the negative pressure host. The above-mentioned engaging structure makes it difficult for the connection between the aspirator and the negative pressure host to loosen, and the two main components are not likely to produce abnormal noise when carried by the user.

[0040] Reference Figure 5 As shown, a first sliding through hole 1310 is further defined on the first mounting side plate 1300 . The first sliding through hole 1310 and the second sliding through hole 1320 are distributed on both sides of the first mounting side plate 1300 .

[0041] Reference Figure 4 As shown, a first through hole 1440 is further defined on the driving plate 1400 . The first through hole 1440 is located between the mounting opening 1410 and the sliding block 1420 .

[0042] Reference Figure 4 As shown, a first bayonet 2110 is further provided on the outer side surface of the second mounting side plate 2100 . The first bayonet 2110 and the second bayonet 2120 are distributed on both sides of the second mounting side plate 2100 .

[0043] Reference Figure 9 As shown, a stopper 3133 is provided at the bottom end of the connecting plate 3130. When the first latch 2110 passes through the first sliding hole 1310 and the second through hole 1430 in sequence, the stopper 3133 engages with the first latch 2110; when the first latch 2110 is separated from the first sliding hole 1310 and the second through hole 1430 in sequence, the stopper 3133 and the first latch 2110 are separated from each other.

[0044] The second mounting side plate and the connecting plate are detachable. The retaining portion on the connecting plate engages with the first bayonet, which then engages with the second sliding hole in the second mounting side plate. The two bayonet structures are spaced farther apart, making the connection between the suction device and the negative pressure main unit more stable and less likely to loosen. Furthermore, the retaining portion corresponding to the first bayonet and the sliding block on the other drive plate are located in separate components. Even if one retaining component is damaged, the other retaining component can still be used independently.

[0045] Reference Figures 7 to 9 As shown, the pressing mechanism 3100 includes a pressing installation housing 3110 with an opening at the top, a pressing key 3120, and a first spring 3140. The inner bottom wall of the pressing installation housing 3110 is provided with a spring limiting column 3112, and the two side walls of the pressing installation housing 3110 are provided with hinged installation notches 3113. The bottom of the first spring 3140 is sleeved on the spring limiting column 3112. The top of the first spring 3140 is connected to one end of the connecting plate 3130 and the bottom of the pressing key 3120 in sequence. The two sides of the connecting plate 3130 are provided with hinged columns 3132, and the hinged columns 3132 are rotatably connected to the hinged installation notches 3113. The above-mentioned pressing component structure is compactly designed. When the user presses the pressing key and then releases it, the first spring returns to the expanded state from the contracted state, and the connecting plate drives the driving plate to reset. The pressing installation housing 3110 is embedded in the top of the housing assembly 1000.

[0046] Reference Figure 8 As shown, a first press-install opening 3114 and a second press-install opening 3111 are respectively defined on two sides of the press-install housing 3110 .

[0047] Reference Figure 2 As shown, the housing assembly 1000 includes a first housing 1100 and a second housing 1200 fixedly connected to the first housing 1100. The interior of the first housing 1100 is provided with a first connecting column 1110 and a second connecting column 1120.

[0048] Reference Figure 2 Combine Figure 8 As shown, the press-fit housing 3110 is embedded in the top housing of the first housing 1100 and the second housing 1200. The first press-fit opening 3111 and the second press-fit opening 3114 are respectively fixed to the first connecting post 1110 and the second connecting post 1120 by bolts. The aforementioned drive assembly is assembled with the housing assembly, and the two press-fit openings on the press-fit housing are fixedly connected with the connecting posts on the housing assembly. The user can press the pressing mechanism repeatedly to prevent it from being dislodged from the housing.

[0049] Reference Figure 4 and Figure 5As shown, a sliding groove 1360 is provided on the inner side of the first mounting side plate 1300, and the driving plate 1400 is embedded in the sliding groove 1360. A first blocking piece 1510 is also included. The first blocking piece 1510 is disposed adjacent to the outer side surface of the base of the driving plate 1400 to prevent the driving plate 1400 from disengaging from the sliding groove 1360. Both ends of the first blocking piece 1510 are fixedly connected to the outer side surface of the first mounting side plate 1300.

[0050] Reference Figure 2 As shown, a second baffle 1530 is further included. The second baffle 1530 is disposed adjacent to the outer side surface of the middle portion of the driving plate 1400 to limit the driving plate 1400 from separating from the sliding slot 1360 . Both ends of the second baffle 1530 are fixedly connected to the outer side surface of the first mounting side plate 1300 .

[0051] When the driving plate slides relatively in the sliding groove, the first blocking piece and the second blocking piece restrict the driving plate from sliding on the first mounting side plate, and the driving plate is not easily loosened from the first mounting side plate.

[0052] Reference Figure 4 In order to make the reset effect of the driving plate and the first mounting side plate better, a second spring 1520 is further included. The two ends of the second spring 1520 are respectively fixedly connected to the connecting column on the outer surface of the driving plate 1400 and the connecting column on the outer surface of the first blocking piece 1510.

[0053] Reference Figure 10 In order to provide an additional fixing point between the drive plate and the first mounting side plate, thereby securing the aspirator and the negative pressure main unit at three points, sliding blocks 1420 are provided at both ends of the bottom of the drive plate 1400. The pair of sliding blocks 1420 are provided at positions corresponding to the pair of second sliding through holes 1320.

[0054] Reference Figure 1 and Figure 3 , further comprising a first airway 2410 and a second airway 2420. A first airway outlet 4002 and a second airway outlet 4004 are respectively provided on the outside of the suction device 2000. One end of the first airway 2410 is connected to the first airway outlet 4002, and the other end of the first airway 2410 is used to output negative air pressure to the wound on the human body. One end of the second airway 2420 is connected to the second airway outlet 4004, and the other end of the second airway 2420 is used to collect negative air pressure near the wound on the human body. The first airway outlet 4002 and the second airway outlet 4004 are located on the first mounting side panel 1300.

[0055] 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 connection structure for a medical negative pressure aspirator, characterized in that: include: A negative pressure main unit, comprising a housing assembly (1000) and a first mounting side plate (1300) arranged on one side of the housing assembly (1000), wherein the first mounting side plate (1300) is provided with a second sliding through hole (1320). A driving plate (1400) is provided on the inner side of the first mounting side plate (1300), and a mounting opening (1410) and a sliding block (1420) are provided on the top and bottom of the driving plate (1400), respectively. A driving assembly (3000) is provided on the housing assembly (1000), wherein the driving assembly (3000) comprises a pressing mechanism (3100) and a connecting plate (3130) installed inside the pressing mechanism (3100) and linked therewith. A suction device (2000) is provided adjacent to the first mounting side plate (1300), one side of the suction device (2000) is provided with a second mounting side plate (2100), and the outer side surface of the second mounting side plate (2100) is provided with a second bayonet (2120). The end of the connecting plate (3130) is connected to the mounting opening (1410), so that the pressing mechanism (3100) is linked to one side of the connecting plate (3130), driving the end of the connecting plate (3130) to slide the driving plate (1400) on the inner side surface of the first mounting side plate (1300). Wherein, the second sliding through hole (1320) is arranged corresponding to the position of the sliding block (1420). And wherein, when the second bayonet (2120) passes through the second sliding through hole (1320), the sliding block (1420) and the second bayonet (2120) are engaged and connected; when the second bayonet (2120) is disengaged from the second sliding through hole (1320), the sliding block (1420) and the second bayonet (2120) are disengaged from each other.

2. The connection structure of the medical negative pressure aspirator according to claim 1, characterized in that: The first mounting side plate (1300) is further provided with a first sliding through hole (1310), wherein the first sliding through hole (1310) and the second sliding through hole (1320) are distributed on both sides of the first mounting side plate (1300). The driving plate (1400) is further provided with a first through hole (1440), and the first through hole (1440) is located between the mounting opening (1410) and the sliding block (1420). The outer side surface of the second mounting side plate (2100) is further provided with a first bayonet (2110), wherein the first bayonet (2110) and the second bayonet (2120) are distributed on both sides of the second mounting side plate (2100). A limiting portion (3133) is provided at the bottom of the end of the connecting plate (3130); When the first bayonet (2110) passes through the first sliding through hole (1310) and the second through hole (1430) in sequence, the limiting portion (3133) and the first bayonet (2110) are engaged and connected; when the first bayonet (2110) is separated from the first sliding through hole (1310) and the second through hole (1430) in sequence, the limiting portion (3133) and the first bayonet (2110) are separated from each other.

3. The connection structure of the medical negative pressure aspirator according to claim 1, characterized in that: The pressing mechanism (3100) includes a pressing installation shell (3110) with an upper opening, a pressing key (3120) and a first spring (3140). The inner bottom wall of the pressing installation shell (3110) is provided with a spring limiting column (3112). Both side walls of the pressing installation shell (3110) are provided with a hinged installation notch (3113). The bottom of the first spring (3140) is sleeved on the spring limiting column (3112). The top of the first spring (3140) is connected to one end of the connecting plate (3130) and the bottom of the pressing key (3120) in sequence. Both sides of the connecting plate (3130) are provided with hinged columns (3132). The hinged columns (3132) are rotatably connected with the hinged installation notch (3113). Wherein, the press-fit shell (3110) is embedded on the top of the shell assembly (1000).

4. The connection structure of the medical negative pressure aspirator according to claim 3, characterized in that: The two sides of the press-install housing (3110) are respectively provided with a first press-install opening (3114) and a second press-install opening (3111). The housing assembly (1000) comprises a first housing (1100) and a second housing (1200) fixedly connected to the first housing (1100), wherein a first connecting column (1110) and a second connecting column (1120) are respectively provided inside the first housing (1100). In which, the press-fitting shell (3110) is embedded in the top shell of the first shell (1100) and the second shell (1200), and the first press-fitting port (3114) and the second press-fitting port (3111) are respectively fixed to the first connecting column (1110) and the second connecting column (1120) by bolts.

5. The connection structure of the medical negative pressure aspirator according to claim 2, characterized in that: The inner side of the first mounting side plate (1300) is provided with a sliding groove (1360), and the driving plate (1400) is embedded in the sliding groove (1360). Also includes a first baffle (1510), The first baffle (1510) is arranged adjacent to the outer side surface of the root of the driving plate (1400) to limit the driving plate (1400) from escaping from the sliding groove (1360), and the two ends of the first baffle (1510) are fixedly connected to the outer side surface of the first mounting side plate (1300).

6. The connection structure of the medical negative pressure aspirator according to claim 5, characterized in that: Also included is a second spring (1520), Wherein, the two ends of the second spring (1520) are respectively fixedly connected to the connecting column on the outer surface of the driving plate (1400) and the connecting column on the outer surface of the first blocking piece (1510).

7. The connection structure of the medical negative pressure aspirator according to claim 5, characterized in that: Also includes a second baffle (1530), The second baffle (1530) is arranged adjacent to the outer side surface of the middle part of the driving plate (1400) to limit the driving plate (1400) from escaping from the sliding groove (1360), and the two ends of the second baffle (1530) are fixedly connected to the outer side surface of the first mounting side plate (1300).

8. The connection structure of the medical negative pressure aspirator according to claim 1, characterized in that: The sliding blocks (1420) are respectively provided at both ends of the bottom of the driving plate (1400). Wherein, the positions of the pair of sliding blocks (1420) and the pair of second sliding through holes (1320) are arranged correspondingly.

9. The connection structure of the medical negative pressure aspirator according to claim 1, characterized in that: It also includes a first trachea (2410) and a second trachea (2420), The outer side of the suction device (2000) is provided with a first tracheal outlet (4002) and a second tracheal outlet (4004). One end of the first air tube (2410) is connected to the first air tube output port (4002), and the other end of the first air tube (2410) is used to output negative air pressure to act on the wound on the human body; one end of the second air tube (2420) is connected to the second air tube output port (4004), and the other end of the second air tube (2420) is used to collect the negative air pressure value near the wound on the human body.

10. The connection structure of the medical negative pressure aspirator according to claim 9, characterized in that: The first air pipe output port (4002) and the second air pipe output port (4004) are arranged on the first mounting side plate (1300).

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