Connecting device of plasma adsorber

Abstract

The utility model provides a plasma adsorber connecting device which comprises a pipeline assembly and a pipeline clamp assembly. The pipeline assembly comprises a displacement liquid pump pipeline, a plasma extraction pipeline, a middle pipeline, an adsorption column outlet end pipeline, an adsorption column inlet end pipeline, a waste liquid pump pipeline and a waste liquid bag pipeline, wherein the adsorption column outlet end pipeline and the adsorption column inlet end pipeline are connected to the two ends of the middle pipeline respectively; the adsorption column outlet end pipeline is arranged close to the displacement liquid pump pipeline, the adsorption column inlet end pipeline is arranged close to the waste liquid pump pipeline, and a plasma adsorption column is connected between the adsorption column outlet end pipeline and the adsorption column inlet end pipeline; the pipeline clamp assembly comprises a first pipeline clamp arranged close to the plasma extraction pipeline, a second pipeline clamp arranged close to the middle pipeline, a third pipeline clamp and a fourth pipeline clamp which are respectively arranged close to the adsorption column outlet end pipeline and the adsorption column inlet end pipeline, and a fifth pipeline clamp arranged close to the waste liquid bag pipeline. According to the utility model, the cost is saved while the treatment time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a connecting device for a plasma adsorber. Background Art

[0002] At present, plasma exchange and plasma adsorption are used to draw out the patient's plasma, separate the plasma and cellular components through a plasma exchanger, discard some pathogenic substances, metabolites and some autoantibodies and toxins of autoimmune diseases in the plasma, and return the cellular components and an equal amount of plasma substitutes to the body to eliminate pathogenic factors and harmful factors in the body.

[0003] In the prior art, an ordinary double-headed connecting tube is usually used for plasma exchange and plasma adsorption, which can realize simple series pre-flushing and treatment. In the plasma adsorption mode, two connecting tubes are used. The waste liquid end of the pipeline uses a single-head connecting tube. The waste liquid tube is connected to the inlet end of the adsorption column. After the outlet end of the adsorption column is connected to the single-head connecting tube, the replacement fluid pump connecting tube is connected to form a plasma adsorption mode. After the adsorption is completed, the two connecting tubes are removed, the adsorption column is discarded, the waste liquid tube is connected to the waste liquid bag, and the plasma exchange tube is connected to the plasma to form a plasma exchange mode. This method can perform plasma adsorption combined with plasma exchange treatment. However, ordinary pipelines are not fully compatible with the original pipelines, and they need to be trimmed and modified before they can be used. During the removal process, there is a risk of occupational exposure to waste liquid splashing and the risk of contaminating the pipeline. Once this connection method changes the treatment mode midway, the removed adsorption column cannot be used any longer, which affects the patient's treatment effect and increases the patient's treatment costs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a connecting device for a plasma adsorber, aiming to solve the technical problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A connection device for a plasma adsorber comprises a pipeline assembly and a pipeline clamp assembly, wherein the pipeline assembly comprises a replacement fluid pump pipeline, a plasma extraction pipeline, an intermediate pipeline respectively connected to the replacement fluid pump pipeline and the plasma extraction pipeline, an adsorption column outlet pipeline and an adsorption column inlet pipeline respectively connected to both ends of the intermediate pipeline, and a waste liquid pump pipeline and a waste liquid bag pipeline respectively connected to one end of the intermediate pipeline away from the replacement fluid pump pipeline, the adsorption column outlet pipeline is arranged close to the replacement fluid pump pipeline, the adsorption column inlet pipeline is arranged close to the waste liquid pump pipeline, a plasma adsorption column is connected between the adsorption column outlet pipeline and the adsorption column inlet pipeline, and the pipeline clamp assembly comprises a first pipeline clamp arranged close to the plasma extraction pipeline, a second pipeline clamp arranged close to the intermediate pipeline, a third pipeline clamp and a fourth pipeline clamp respectively arranged close to the adsorption column outlet pipeline and the adsorption column inlet pipeline, and a fifth pipeline clamp arranged close to the waste liquid bag pipeline.

[0007] According to one aspect of the above technical solution, the connection device of the plasma adsorber further includes a mounting plate, and the pipeline assembly and the pipeline clamp assembly are both mounted on one surface of the mounting plate.

[0008] According to one aspect of the above technical solution, the pipeline clamp assembly further includes a sixth pipeline clamp disposed close to the replacement fluid pump pipeline, and a seventh pipeline clamp disposed close to the waste fluid pump pipeline.

[0009] According to one aspect of the above technical solution, the first pipeline clamp, the second pipeline clamp, the third pipeline clamp, the fourth pipeline clamp, the fifth pipeline clamp, the sixth pipeline clamp, and the seventh pipeline clamp all include a mounting seat fixedly connected to the mounting plate, a rotating shaft located in the mounting seat, an extrusion portion rotatably connected to the rotating shaft, and a torsion spring connecting the extrusion portion and the mounting seat.

[0010] According to one aspect of the above technical solution, a worm is provided in the mounting plate, a rotating rod and a worm wheel mounted on the rotating rod are provided on a side of the mounting plate facing away from the pipeline assembly, the worm wheel is meshed with the worm, and a first winding wheel and a second winding wheel are provided on the rotating rod from bottom to top, a first pull wire is wound around the first winding wheel, and two ends of the first pull wire are respectively connected to the extrusion part of the first pipeline clamp and the extrusion part of the third pipeline clamp, a second pull wire is wound around the second winding wheel, and two ends of the second pull wire are respectively connected to the extrusion part of the fourth pipeline clamp and the extrusion part of the fifth pipeline clamp.

[0011] According to one aspect of the above technical solution, the two ends of the first pull wire are respectively connected to the side of the extrusion portion of the first pipe clamp close to the mounting plate, and the side of the extrusion portion of the third pipe clamp away from the mounting plate, and the two ends of the second pull wire are respectively connected to the side of the extrusion portion of the fourth pipe clamp away from the mounting plate, and the side of the extrusion portion of the fifth pipe clamp close to the mounting plate.

[0012] According to one aspect of the above technical solution, a fixing ring is provided on the mounting plate, and the fixing ring is used to limit the position of the pipeline assembly.

[0013] According to one aspect of the above technical solution, a plurality of through holes are formed through the mounting plate, and the first pull wire and the second pull wire both pass through the through holes and are connected to the extrusion portion.

[0014] According to one aspect of the above technical solution, a notch is provided at a position of the mounting plate close to the worm wheel, and the worm is partially exposed in the notch.

[0015] According to one aspect of the above technical solution, one end of the worm protrudes from the side wall of the mounting plate and is connected to the adjusting knob.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] Through the above-mentioned pipeline settings and pipeline clamp settings, the replacement fluid pump pipeline, the intermediate pipeline, the adsorption column outlet pipeline, the plasma adsorption column, the adsorption column inlet section pipeline, and the waste liquid pump pipeline are strung together into a circulation pipeline, and then each pipeline is clamped by each pipeline clamp. When the plasma adsorption mode is required, the first pipeline clamp, the second pipeline clamp and the fifth pipeline clamp are controlled to be closed, and the third pipeline clamp and the fourth pipeline clamp are controlled to be opened. The fluid will sequentially pass through the waste liquid pump pipeline, the adsorption column inlet end pipeline, the plasma adsorption column, the adsorption column outlet end pipeline, and the replacement fluid pump pipeline. The circulation pipeline is strung together to achieve plasma adsorption. When the plasma exchange mode is required, the first pipeline clamp and the fifth pipeline clamp are controlled to be opened, and the second pipeline clamp, the third pipeline clamp and the fourth pipeline clamp are controlled to be closed. The plasma in the patient's body will flow from the plasma extraction pipeline to the replacement fluid pump pipeline, and then the replacement fluid will flow back to the patient's body from the replacement fluid pump pipeline through the plasma extraction pipeline, and the waste liquid will flow from the waste liquid pump pipeline to the waste liquid bag pipeline, thereby achieving plasma exchange;

[0018] The utility model can switch between the plasma adsorption and plasma exchange modes by only controlling the opening or closing of the corresponding pipeline clamps, without the need to use two sets of consumables, thereby speeding up the treatment time and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front structural schematic diagram of a connecting device of a plasma adsorber in an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the back structure of the connecting device of the plasma adsorber in the embodiment of the utility model;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure at the first pull line;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure at the second pull line;

[0023] Figure 5 for Figure 1 Structural schematic diagram of the middle pipe clamp assembly;

[0024] Description of main component symbols:

[0025]

[0026]

[0027] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] See also Figures 1 to 5, shown is a connection device of a plasma adsorber in an embodiment of the utility model, including a pipeline assembly and a pipeline clamp assembly, wherein the pipeline assembly includes a replacement fluid pump pipeline 21, a plasma extraction pipeline 22, an intermediate pipeline 23 connected to the replacement fluid pump pipeline 21 and the plasma extraction pipeline 22, respectively, an adsorption column outlet end pipeline 24 and an adsorption column inlet end pipeline 25 connected to both ends of the intermediate pipeline 23, and a waste liquid pump pipeline 26 and a waste liquid bag pipeline 27 connected to one end of the intermediate pipeline 23 away from the replacement fluid pump pipeline 21, respectively, and the adsorption column outlet end pipeline 24 is close to the plasma extraction pipeline 22. A replacement fluid pump pipeline 21 is set, the adsorption column inlet end pipeline 25 is set close to the waste fluid pump pipeline 26, a plasma adsorption column 70 is connected between the adsorption column outlet end pipeline 24 and the adsorption column inlet end pipeline 25, and the pipeline clamp assembly includes a first pipeline clamp 31 set close to the plasma extraction pipeline 22, a second pipeline clamp 32 set close to the intermediate pipeline 23, a third pipeline clamp 33 and a fourth pipeline clamp 34 respectively set close to the adsorption column outlet end pipeline 24 and the adsorption column inlet end pipeline 25, and a fifth pipeline clamp 35 set close to the waste fluid bag pipeline 27.

[0032] It can be understood that the utility model, through the above-mentioned pipeline setting and pipeline clamp setting, connects the replacement fluid pump pipeline 21, the intermediate pipeline 23, the adsorption column outlet pipeline 24, the plasma adsorption column 70, the adsorption column inlet section pipeline, and the waste liquid pump pipeline 26 into a circulation pipeline, and then clamps each pipeline through each pipeline clamp. When the plasma adsorption mode is required, the first pipeline clamp 31, the second pipeline clamp 32 and the fifth pipeline clamp 35 are controlled to be closed, and the third pipeline clamp 33 and the fourth pipeline clamp 34 are controlled to be opened, and the fluid will pass through the waste liquid pump pipeline 26, the adsorption column inlet pipeline 25, the plasma adsorption column 70, the adsorption column inlet section pipeline, and the waste liquid pump pipeline 26 in sequence. The adsorption column 70, the adsorption column outlet end pipeline 24, and the replacement fluid pump pipeline 21 are connected to form a circulation pipeline to achieve plasma adsorption. When the plasma exchange mode is required, the first pipeline clamp 31 and the fifth pipeline clamp 35 are controlled to be opened, and the second pipeline clamp 32, the third pipeline clamp 33 and the fourth pipeline clamp 34 are controlled to be closed. The plasma in the patient's body will flow from the plasma extraction pipeline 22 to the replacement fluid pump pipeline 21, and then the replacement fluid will flow back to the patient's body from the replacement fluid pump pipeline 21 through the plasma extraction pipeline 22, and the waste liquid will flow from the waste liquid pump pipeline 26 to the waste liquid bag pipeline 27, thereby achieving plasma exchange;

[0033] The utility model can switch between the plasma adsorption and plasma exchange modes by only controlling the opening or closing of the corresponding pipeline clamps, without the need to use two sets of consumables, thereby speeding up the treatment time and saving costs.

[0034] Furthermore, the connection device of the plasma adsorber also includes a mounting plate 10, and the pipeline assembly and the pipeline clamp assembly are both mounted on one surface of the mounting plate 10; a fixing ring 50 is provided on the mounting plate 10, and the fixing ring 50 is used to limit the pipeline assembly.

[0035] It can be understood that by setting the fixing ring 50 to limit the position of each pipeline, each pipeline clamp can just contact the pipeline when performing the squeezing action to prevent the pipeline from deviating, and the mounting plate 10 can be set on the infusion stand.

[0036] Furthermore, a worm 11 is provided in the mounting plate 10, a rotating rod 40 and a worm wheel 13 sleeved on the rotating rod 40 are provided on the side of the mounting plate 10 facing away from the pipeline assembly, the worm wheel 13 is meshed with the worm 11, and a first winding wheel 17 and a second winding wheel 18 are provided on the rotating rod 40 from bottom to top, a first pull wire 41 is wound around the first winding wheel 17, and the two ends of the first pull wire 41 are respectively connected to the extrusion portion 72 of the first pipeline clamp 31 and the extrusion portion 72 of the third pipeline clamp 33, a second pull wire 42 is wound around the second winding wheel 18, and the two ends of the second pull wire 42 are respectively connected to the extrusion portion 72 of the fourth pipeline clamp 34 and the extrusion portion 72 of the fifth pipeline clamp 35; the pipeline clamp assembly also includes a sixth pipeline clamp 36 arranged near the replacement fluid pump pipeline 21, and a seventh pipeline clamp 37 arranged near the waste fluid pump pipeline 26.

[0037] The first pipeline clamp 31, the second pipeline clamp 32, the third pipeline clamp 33, the fourth pipeline clamp 34, the fifth pipeline clamp 35, the sixth pipeline clamp 36, and the seventh pipeline clamp 37 all include a mounting seat 71 fixedly connected to the mounting plate 10, a rotating shaft 73 located in the mounting seat 71, an extrusion portion 72 rotatably connected to the rotating shaft 73, and a torsion spring 74 connecting the extrusion portion 72 and the mounting seat 71.

[0038] Specifically, in the present embodiment, the two ends of the first pull wire 41 are respectively connected to the side of the extrusion portion 72 of the first pipe clamp 31 close to the mounting plate 10, and the side of the extrusion portion 72 of the third pipe clamp 33 away from the mounting plate 10, and the two ends of the second pull wire 42 are respectively connected to the side of the extrusion portion 72 of the fourth pipe clamp 34 away from the mounting plate 10, and the side of the extrusion portion 72 of the fifth pipe clamp 35 close to the mounting plate 10.

[0039] It can be understood that when the torsion springs 74 in the first pipeline clamp 31 and the fifth pipeline clamp 35 are in the reset state, the extrusion parts 72 in these pipeline clamps are in the open state, and when the torsion springs 74 in the second pipeline clamp 32, the third pipeline clamp 33, and the fourth pipeline clamp 34 are in the reset state, the extrusion parts 72 in these pipeline clamps are in the extrusion state. When the worm 11 and the worm wheel 13 are in the initial state, the first winding wheel 17 and the second winding wheel 18 are in the initial state, so that the two ends of the first pull wire 41 and the second pull wire 42 are in the relaxed state. At this time, the extrusion parts 72 of the first pipeline clamp 31 and the fifth pipeline clamp 35 are in the open state and do not squeeze the pipeline, while the extrusion parts 72 of the third pipeline clamp 33 and the fourth pipeline clamp 34 are in the extrusion state and squeeze the pipeline. There is a pull wire pulling, and it is always in a state of squeezing the middle pipeline 23. At this time, it is the plasma exchange mode. When it is necessary to switch to the plasma exchange mode, the worm 11 is controlled to rotate, thereby driving the worm wheel 13 and the rotating rod 40 to rotate. The rotation of the rotating rod 40 drives the first winding wheel 17 and the second winding wheel 18 to rotate. The rotation of the first winding wheel 17 tightens the two ends of the first pull wire 41, so that the squeezing part 72 of the first pipeline clamp 31 squeezes the replacement fluid pump pipeline 21, and the squeezing part 72 of the third pipeline clamp 33 is separated from the adsorption column outlet end pipeline 24. The rotation of the second winding wheel 18 tightens the two ends of the second pull wire 42, so that the squeezing part 72 of the fourth pipeline clamp 34 is separated from the adsorption column inlet end pipeline 25, and the squeezing part 72 of the fifth pipeline clamp 35 squeezes the waste liquid bag pipeline 27, thereby completing the exchange from plasma exchange to plasma adsorption.

[0040] With the above structural design, the mode switching can be completed by simply adjusting the rotation of the worm 11, and because the worm wheel 13 and worm 11 structure has a self-locking function, there is no need to worry about the resetting force of the torsion spring 74 causing the worm wheel 13 to reverse.

[0041] Furthermore, the second pipeline clamp 32, the sixth pipeline clamp 36, and the seventh pipeline clamp 37 all slide on the mounting plate 10 through the slider groove 51 structure. Under normal use, the second pipeline clamp 32 is close to the middle pipeline 23. Through the reset force of the torsion spring 74, the squeezing portion 72 always squeezes the middle pipeline 23, while the sixth pipeline clamp 36 and the seventh pipeline clamp 37 are respectively away from the replacement fluid pump pipeline 21 and the waste fluid pump pipeline 26, so that the replacement fluid pump pipeline 21 and the waste fluid pump pipeline 26 are always in an open state. When there is a specific need, the pipeline clamp can be moved through the slider groove 51 structure to realize the opening and closing of the pipeline.

[0042] Furthermore, a plurality of through holes 60 are formed through the mounting plate 10 , and the first pull wire 41 and the second pull wire 42 pass through the through holes 60 to be connected to the extrusion portion 72 .

[0043] It can be understood that since the first pull wire 41 and the second pull wire 42 are both located at the rear of the mounting plate 10 , a through hole 60 is provided to allow the pull wires to pass through.

[0044] Furthermore, a first bearing seat 15 and a second bearing seat 16 are provided on a side of the mounting plate 10 close to the rotating rod 40 , and both ends of the rotating rod 40 are rotatably connected to the first bearing seat 15 and the second bearing seat 16 , respectively.

[0045] Furthermore, a notch 14 is provided on the mounting plate 10 at a position close to the worm wheel 13 , and a portion of the worm 11 is exposed in the notch 14 .

[0046] It can be understood that the size of the slot 14 needs to be such that the worm wheel 13 can rotate without hindrance.

[0047] Furthermore, one end of the worm 11 protrudes from the side wall of the mounting plate 10 and is connected to the adjusting knob 12 .

[0048] It can be understood that the rotation of the worm 11 can be more conveniently controlled by adjusting the knob 12 .

[0049] In summary, the connection device of the plasma adsorber in the above-mentioned embodiment of the utility model can switch the plasma adsorption and plasma exchange modes only by controlling the opening or closing of the corresponding pipeline clamp, without the need for two sets of consumables, which speeds up the treatment time and saves costs.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means 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 utility model. In this specification, the schematic representation of the above terms does 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.

[0051] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A connection device for a plasma adsorber, characterized in that: The invention comprises a pipeline component and a pipeline clamp component, wherein the pipeline component comprises a replacement fluid pump pipeline, a plasma extraction pipeline, an intermediate pipeline respectively connected to the replacement fluid pump pipeline and the plasma extraction pipeline, an adsorption column outlet pipeline and an adsorption column inlet pipeline respectively connected to two ends of the intermediate pipeline, and a waste liquid pump pipeline and a waste liquid bag pipeline respectively connected to one end of the intermediate pipeline away from the replacement fluid pump pipeline, the adsorption column outlet pipeline is arranged close to the replacement fluid pump pipeline, the adsorption column inlet pipeline is arranged close to the waste liquid pump pipeline, a plasma adsorption column is connected between the adsorption column outlet pipeline and the adsorption column inlet pipeline, and the pipeline clamp component comprises a first pipeline clamp arranged close to the plasma extraction pipeline, a second pipeline clamp arranged close to the intermediate pipeline, a third pipeline clamp and a fourth pipeline clamp respectively arranged close to the adsorption column outlet pipeline and the adsorption column inlet pipeline, and a fifth pipeline clamp arranged close to the waste liquid bag pipeline.

2. The connecting device of the plasma adsorber according to claim 1, characterized in that: The connection device of the plasma adsorber also includes a mounting plate, and the pipeline assembly and the pipeline clamp assembly are both mounted on one surface of the mounting plate.

3. The connecting device of the plasma adsorber according to claim 2, characterized in that: The pipeline clamp assembly also includes a sixth pipeline clamp disposed close to the replacement fluid pump pipeline, and a seventh pipeline clamp disposed close to the waste fluid pump pipeline.

4. The connecting device for the plasma adsorber according to claim 3, characterized in that: The first pipeline clamp, the second pipeline clamp, the third pipeline clamp, the fourth pipeline clamp, the fifth pipeline clamp, the sixth pipeline clamp, and the seventh pipeline clamp all include a mounting seat fixedly connected to the mounting plate, a rotating shaft located in the mounting seat, an extrusion portion rotatably connected to the rotating shaft, and a torsion spring connecting the extrusion portion and the mounting seat.

5. The connecting device for the plasma adsorber according to claim 4, characterized in that: A worm is provided in the mounting plate, a rotating rod and a worm wheel mounted on the rotating rod are provided on a side of the mounting plate facing away from the pipeline assembly, the worm wheel is meshed with the worm, and a first winding wheel and a second winding wheel are provided on the rotating rod from bottom to top, a first pull wire is wound around the first winding wheel, and two ends of the first pull wire are respectively connected to the extrusion part of the first pipeline clamp and the extrusion part of the third pipeline clamp, a second pull wire is wound around the second winding wheel, and two ends of the second pull wire are respectively connected to the extrusion part of the fourth pipeline clamp and the extrusion part of the fifth pipeline clamp.

6. The connecting device for the plasma adsorber according to claim 5, characterized in that: The two ends of the first pull wire are respectively connected to the side of the extrusion portion of the first pipe clamp close to the mounting plate, and the side of the extrusion portion of the third pipe clamp away from the mounting plate, and the two ends of the second pull wire are respectively connected to the side of the extrusion portion of the fourth pipe clamp away from the mounting plate, and the side of the extrusion portion of the fifth pipe clamp close to the mounting plate.

7. The connecting device of the plasma adsorber according to claim 2, characterized in that: A fixing ring is provided on the mounting plate, and the fixing ring is used to limit the position of the pipeline assembly.

8. The connecting device for the plasma adsorber according to claim 5, characterized in that: The mounting plate is provided with a plurality of through holes, and the first pull wire and the second pull wire both pass through the through holes and are connected to the extrusion portion.

9. The connecting device for the plasma adsorber according to claim 5, characterized in that: A notch is provided at a position of the mounting plate close to the worm wheel, and the worm is partially exposed in the notch.

10. The connecting device for the plasma adsorber according to claim 5, characterized in that: One end of the worm protrudes from the side wall of the mounting plate and is connected to the adjusting knob.

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