CN219631021U

CN219631021U - Novel laparoscopic surgery gas purifier

Info

Publication number: CN219631021U
Application number: CN202222491874.4U
Authority: CN
Inventors: 冯路利; 李嘉荣; 康希越; 张惠斌; 陈帅鹏; 王重贺; 钱贤晢; 唐文武; 任彩; 贺庆林; 林嘉晏
Original assignee: Changsha Aituomu New Materials Co ltd
Current assignee: Changsha Aituomu New Materials Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-09-05
Anticipated expiration: 2032-09-20

Abstract

The utility model relates to a novel laparoscopic surgery gas purifier which comprises a purifier main body and a gas inlet arranged on the purifier main body, wherein a gas permeable pipe, a first filter layer and a second filter layer are arranged in the purifier main body, the gas permeable pipe is also connected with the gas inlet, the first filter layer is sleeved outside the gas permeable pipe, the second filter layer is connected with the inner wall of the purifier main body, a filter cavity is formed between the first filter layer and the second filter layer, a plurality of gas outlets are also arranged in the purifier main body, and the gas outlets are communicated with the filter cavity through the second filter layer. The novel laparoscopic surgery gas purifier provided by the utility model has multiple filtering effects, better purifying effect and simpler structure.

Description

Novel laparoscopic surgery gas purifier

Technical Field

The utility model relates to the technical field of medical equipment and medical sanitation, in particular to a novel laparoscopic surgery gas purifier.

Background

With the rapid development of the medical industry, many surgical operations have been performed through minimally invasive operations, which are operations performed by using modern medical instruments such as laparoscopes, thoracoscopes and related devices, and the basic procedures for performing the laparoscopic operations are as follows: CO2 gas is injected into a human body cavity by using a pneumoperitoneum machine, and the pressure of the gas in the cavity is maintained to be stable, so that the cavity is opened to provide a space for observing an endoscope and operating a scalpel. In the operation process, a doctor only needs to open a plurality of small holes on the human body for inserting the endoscope and the scalpel, and the damage to the patient is small. However, in laparoscopic surgery, ultrasonic and electric knives generate a lot of smoke when cutting human tissue. If the smoke can not be discharged in time, the smoke in the cavity is diffused, and the visual field of the endoscope is affected; if the smoke is directly discharged, the smoke can pollute the gas environment in an operating room, and the health of medical staff is affected. And smoke itself has a very noticeable smell, which can be uncomfortable.

With the development and progress of society, the discharge and treatment of smoke from a cavity operation have attracted more and more attention, and there are many gas purifiers for medical use for removing smoke in the market at present, for example: the gas purifier adopting the gas purifying liquid is used for removing the smog, and the gas purifier adopting the multi-layer filter layer is used for removing the smog, but the purification effect of the gas purifier on the current market is not very good, and meanwhile, the structure is complex, and the use and the operation are very inconvenient. Therefore, the gas purifier needs to be improved on the basis of the prior art, and is small in size, simple in structure, better in purifying effect and convenient to use.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the novel laparoscopic surgery gas purifier with multiple filtering effects, better purifying effect and simpler structure.

In order to achieve the purpose of the utility model, the utility model provides a novel laparoscopic surgery gas purifier, which comprises a purifier main body and a gas inlet arranged on the purifier main body, wherein a gas permeable pipe, a first filter layer and a second filter layer are arranged in the purifier main body, the gas permeable pipe is also connected with the gas inlet, the first filter layer is sleeved outside the gas permeable pipe, the second filter layer is connected with the inner wall of the purifier main body, a filter cavity is formed between the first filter layer and the second filter layer, the purifier main body is also provided with a plurality of gas outlets, and the gas outlets are communicated with the filter cavity through the second filter layer.

Preferably, the ventilation pipe is internally provided with a first annular support, the first filter layer comprises a first branch support, a second branch support and a first sleeve, the first branch support and the second branch support are mutually connected and sleeved outside the ventilation pipe, the first sleeve is connected with the first branch support and the second branch support which are mutually connected, the first sleeve is sleeved outside the first branch support and the second branch support, and a plurality of ventilation holes are formed in the first annular support, the first branch support and the second branch support at intervals.

Preferably, the purifier main body comprises a top cover, a bottom cover and a side plate, wherein two ends of the side plate are respectively connected with the top cover and the bottom cover, the air inlet is positioned on the top cover, the air outlets are positioned on the side plate, intervals are arranged between the air outlets, one end of the air permeability pipe is connected with the top cover through the air inlet, a first connecting component is arranged on the bottom cover, and the other end of the air permeability pipe is connected with the bottom cover through the first connecting component.

Preferably, the end part of the side plate is provided with a clamping block, the bottom cover is provided with a clamping groove in matched connection with the clamping block, and when the side plate is connected with the bottom cover, the clamping block is in matched connection with the clamping groove.

Preferably, the top cover is further provided with a second connecting component, the second connecting component comprises a first fixing support and a second fixing support, the second fixing support is sleeved outside the first fixing support, the first fixing support and the second fixing support are arranged at intervals, the vent pipe is further internally provided with a first annular support, and the first fixing support is connected with the vent pipe through the first annular support.

Preferably, the first filter layer comprises a first sleeve, the first sleeve comprises a first connecting pipe and a second connecting pipe which are connected with each other, the first connecting pipe is connected with the second fixing support and sleeved outside the second fixing support, the second connecting pipe is connected with the second connecting component through the interval between the first fixing support and the second fixing support, the first connecting pipe is larger than the radius of the second connecting pipe, a fixing ring is further arranged on the second connecting pipe, and the second connecting pipe is connected with the bottom cover through the first connecting component.

Preferably, the gas purifier further comprises a connector and a fifth connecting pipe, one end of the fifth connecting pipe is connected with the gas inlet, and the other end of the fifth connecting pipe is connected with the connector; or alternatively, the first and second heat exchangers may be,

the gas purifier comprises a connector, wherein the connector is connected with a top cover of the purifier main body, and the connector is also connected with the gas inlet.

Preferably, the filter cavity is internally provided with a third fixing support, the second filter layer comprises a second sleeve, a third sleeve, a second annular support, a third branch support and a fourth branch support, the third fixing support is positioned in the second sleeve, the second annular support is fixedly connected with the second sleeve and positioned outside the second sleeve, the third sleeve is connected with the second annular support and sleeved outside the second annular support, the third branch support and the fourth branch support are connected with each other and sleeved outside the third sleeve, and the third branch support and the fourth branch support are connected with each other and are connected with the inner wall of the purifier main body.

Preferably, the third fixing support and the second sleeve are arranged at intervals, a plurality of ventilation holes are formed in the second annular support, the third branch support and the fourth branch support, and a plurality of ventilation holes are arranged at intervals.

Preferably, the purifier body includes a top cover, a bottom cover and a side plate, the second sleeve includes a third connecting pipe and a fourth connecting pipe, one end of the third connecting pipe is connected with the top cover, the other end of the third connecting pipe is connected with the fourth connecting pipe, the fourth connecting pipe is also connected with the bottom cover, and the radius of the third connecting pipe is smaller than that of the fourth connecting pipe.

The beneficial effects of the utility model are as follows: the utility model provides a novel laparoscopic surgery gas purifier which is convenient to use, small in size, better in purifying effect and simpler in structure, and has multiple filtering effects.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

FIG. 1 is a schematic diagram of a novel laparoscopic surgical gas purifier using a connector according to an embodiment of the present utility model;

FIG. 2 is a schematic partial cross-sectional view showing a specific structure of a novel laparoscopic surgery gas purifier using a connector according to an embodiment of the present utility model;

FIG. 3 is a schematic flow chart of air purification according to an embodiment of the present utility model;

FIG. 4 is a schematic overall cross-sectional view of a specific structure of a novel laparoscopic surgical gas purifier using a connector according to a first view angle provided by an embodiment of the present utility model;

FIG. 5 is a simplified schematic illustration of a specific structure of a novel laparoscopic surgical gas purifier employing a connector at a second view angle according to an embodiment of the present utility model;

FIG. 6 is an exploded view of a specific structure of a novel laparoscopic surgical gas purifier using a connector and a connecting tube according to an embodiment of the present utility model;

FIG. 7 is a schematic cross-sectional view of a vent tube and a first filter layer provided by an embodiment of the present utility model;

FIG. 8 is a schematic cross-sectional view of a second filter layer provided in an embodiment of the present utility model;

in the figure: 1-connector, 11-air inlet, 12-fifth connecting pipe, 2-top cap, 21-first fixed support, 22-second fixed support, 3-curb plate, 31-gas outlet, 32-third fixed support, 33-joint piece, 4-bottom, 41-first coupling component, 5-ventilation pipe, 51-first annular support, 52-first branch support, 53-second branch support, 54-first connecting pipe, 55-second connecting pipe, 56-solid ring, 6-third sleeve, 61-second annular support, 62-third branch support, 63-fourth branch support, 64-third connecting pipe, 65-fourth connecting pipe, 7-filter cavity, 8-first filter layer, 9-second filter layer, 10-purifier main body.

Detailed Description

In order that the utility model may be understood more fully, the utility model will be described with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-8, the embodiment of the utility model provides a novel laparoscopic surgery gas purifier, which comprises a purifier main body 10 and a gas inlet 11 arranged on the purifier main body 10, wherein a gas permeable pipe 5, a first filter layer 8 and a second filter layer 9 are arranged in the purifier main body 10, the gas permeable pipe 5 is also connected with the gas inlet 11, the first filter layer 8 is sleeved outside the gas permeable pipe 5 (the gas permeable pipe 5 is covered by the first filter layer 8), the second filter layer 9 is connected with the inner wall of the purifier main body 10, a filter cavity 7 is formed between the first filter layer 8 and the second filter layer 9, a plurality of gas outlets 31 are further arranged on the purifier main body 10, the plurality of gas outlets 31 are communicated with the filter cavity 7 through the second filter layer, the purifier main body 10 is in a cylindrical structure, and the plurality of gas outlets are arranged on the outer shell of the purifier main body 10 in a layer by layer in a circular ring structure.

Referring to fig. 1 to 8, in the practical use process, the novel laparoscopic surgery gas purifier provided by the utility model is only required to connect the gas inlet 11 with the trocar gas passage port, and then open the trocar gas passage switch;

when the smoke enters the air inlet 11, the smoke firstly enters the vent pipe 5 through the air inlet 11 to filter liquid and solid particles, the filtered gas enters the filter cavity 7 after being filtered by the first filter layer 8 on the outer layer of the vent pipe 5, the smoke entering the filter cavity 7 is filtered by the second filter layer 9 after being filtered, and the smoke filtered by the second filter layer 9 is directly discharged from the air outlet 31 to the outside air, at this time, the discharged air is the purified gas harmless to human body (refer to fig. 3, the gas purifier provided by the utility model sequentially carries out diffusion filtration to the outside through the vent pipe, thereby achieving the effect of purifying the gas);

the gas permeability pipe 5 adopts a Hepa film/NiCu alloy porous film, in the actual use process, the gas organic matters are adsorbed and decomposed through high-iodine value activated carbon or high-specific surface MnO2 or high-iodine value activated carbon+high-specific surface MnO2 in the filter cavity 7, and pathogenic cells are killed, and the second filter layer 9 adopts the Hepa film/NiCu alloy porous film;

wherein, the HEPA membrane mainly filters solid and liquid particulate matters in the smoke; the high iodine value activated carbon adsorbs gaseous organic matters; the MnO2 carries out catalytic decomposition on organic matters, and has the functions of disinfection and sterilization; the NiCu alloy porous paper membrane has both particle filtering and sterilizing functions.

The beneficial effects of the utility model are as follows: through arranging first filter layer 8, filter cavity 7 outside arrangement second filter layer 9 on ventilation tube 5 to the realization carries out advanced treatment and degradation to the smog that produces in the operation process, has improved filtering quality to a certain extent, has improved work efficiency.

Referring to fig. 2-8, in a preferred embodiment, a first annular support 51 is further disposed in the ventilation tube 5, the first filter layer 8 includes a first branch support 52, a second branch support 53 and a first sleeve (using a foam pad or a fabric pad), the first branch support 52 and the second branch support 53 are connected to each other and sleeved outside the ventilation tube 5, the first sleeve is connected to the first branch support 52 and the second branch support 53 which are connected to each other, and the first sleeve is sleeved outside the first branch support 52 and the second branch support 53, and a plurality of ventilation holes are formed in the first annular support 51, the first branch support 52 and the second branch support 53, and are disposed at intervals between the plurality of ventilation holes. The air holes arranged on the first annular support 51, the first branch support 52 and the second branch support 53 (the first annular support 51, the first branch support 52 and the second branch support 53 are of grid structures) are the same in interval, the first annular support 51, the first branch support 52, the second branch support 53 and the first sleeve mainly support and separate the ventilation pipe 5, the interval arrangement among the plurality of air holes mainly is used for example for ensuring the ventilation performance of gas during filtration, and the first annular support 51, the first branch support 52 and the second branch support 53 mainly press-fit and fix the ventilation pipe 5 instead of organic glue, so that the air filter is simple to assemble and convenient to install.

Referring to fig. 2-6, in a preferred embodiment, the purifier body 10 includes a top cover 2, a bottom cover 4 and a side plate 3, two ends of the side plate 3 are respectively connected with the top cover 2 and the bottom cover 4, an air inlet 11 is located on the top cover 2, a plurality of air outlets 31 are located on the side plate 3, a space is arranged between the plurality of air outlets 31, one end of a ventilation tube 5 is connected with the top cover 2 through the air inlet 11, a first connecting component 41 in matching connection with the ventilation tube 5 is arranged on the bottom cover 4, and the other end of the ventilation tube 5 is connected with the bottom cover 4 through the first connecting component 41. The air outlets 31 are arranged in the purifier main body 10 towards the outside of the purifier main body 10 in a protruding way, so that the flow speed of smoke (air) can be increased, the air outlets 31 are all centered on the air inlet 11 and surround the air inlet 11 for a circle, the air outlets 31 are uniformly arranged, the intervals between the air outlets 31 are the same, and the aesthetic property is improved to a certain extent.

Referring to fig. 5, in a further preferred embodiment, the end portion of the side plate 3 is provided with a clamping block 33, the bottom cover 4 is provided with a clamping groove in matching connection with the clamping block 33, when the side plate 3 is connected with the bottom cover 4, the clamping block 33 is in matching connection with the clamping groove, through setting the clamping block 33 and the clamping groove, when the purifier main body 10 needs to be overhauled and replaced by parts, the clamping block 33 can be taken out from the clamping groove, so that the overhauling is more convenient compared with the traditional integrated air purifier, and meanwhile, the service life is also prolonged.

Referring to fig. 5, in a further preferred embodiment, the top cover 2 is further provided with a second connection component, the second connection component is located in the filter cavity 7, and the second connection component is further connected with the vent pipe 5, the second connection component is mainly used for connecting the vent pipe 5 with the first filter layer 8, and the vent pipe 5 and the second connection component are mainly connected in a clamping manner, not fixedly connected, so that the arrangement is mainly convenient for maintenance and replacement of the vent pipe 5.

Referring to fig. 7-8, in a preferred embodiment, the second connection assembly includes a first fixing support 21 and a second fixing support 22 (the first fixing support 21 and the second fixing support 22 and the third fixing support 32 are both in a grid structure), the first fixing support 21 is connected with the ventilation tube 5, the second fixing support 22 is sleeved outside the first fixing support 21, and is arranged at a distance between the first fixing support 21 and the second fixing support 22, the first filter layer 8 includes a first sleeve, the first sleeve includes a first connection tube 54 and a second connection tube 55 which are connected with each other, the first connection tube 54 is connected with the second fixing support 22 and sleeved outside the second fixing support 22, the second connection tube 55 is connected with the second connection tube 55 through a distance between the first fixing support 21 and the second fixing support 22, the first connection tube 54 is larger than the radius of the second connection tube 55, the second connection tube 55 is also provided with a fixing ring 56 through the first connection assembly 41, the second connection tube 55 is connected with the bottom cover 4, wherein the first fixing support 21 and the second fixing support 22 are both in a ring structure, the radius between the first connection tube 21 and the second fixing support 22 and the first connection tube 22 is provided with the same as the radius of the first connection tube 4, and the radius between the second connection tube 22 and the second connection tube 5 is increased by a certain amount, and the radius of the ventilation tube 5 is equal to the radius between the first connection tube and the second connection tube 4 and the second connection tube 2 and the radius of the ventilation tube 4.

Referring to fig. 1-8, in a further preferred embodiment, the gas purifier further comprises a connector 1 and a fifth connecting pipe 12, one end of the fifth connecting pipe 12 is connected with the gas inlet 11, and the other end of the fifth connecting pipe 12 is connected with the connector 1; or alternatively, the first and second heat exchangers may be,

the gas purifier includes connector 1, and connector 1 is connected with the top cap 2 of purifier main part 10, and connector 1 still is connected with air inlet 11. The connector 1 is mainly a luer connector, and other connectors can be adopted as required.

Compared with the gas purifier in the prior art, the gas purifier provided by the utility model has the advantages that the volume is smaller, the installation is more convenient, the gas purifier can be directly fixedly connected with external equipment through the connector 1, meanwhile, the filling quantity of the filter material in the device can be calculated according to the performance of the filter material, the proper filling quantity is determined, and the volume of the final device is only about 30-60 cm ³ ；

In the actual operation process, the luer is screwed on the trocar air passage, and then the trocar air passage switch is opened as required. Then, the purifier is not required to be operated in the whole operation process;

in the actual operation process, the puncture outfit may rotate in various angles, if only the connector 1 is connected with the air inlet 11, no other influence may exist in most cases, but in some large-angle rotation, manual assistance is needed to pull out the filter, a certain operation is needed, and a certain problem exists, so the utility model also comprises the connection of the connector 1 with the air inlet 11 through the fifth connecting pipe 12, wherein the fifth connecting pipe 12 adopts a rubber pipe, the fifth connecting pipe 12 not only has the function of supporting to a certain extent, but also can generate deformation required by the cooperation rotation under the condition of certain large-angle rotation, and the special condition in the operation is met.

Referring to fig. 3 to 8, in the preferred embodiment, a third fixing bracket 32 is disposed in the filter cavity 7, the second filter layer 9 includes a second sleeve (using a Hepa membrane or a NiCu alloy porous paper membrane), a third sleeve 6 (using a foam pad or a fabric pad), a second annular bracket 61, a third branch bracket 62 and a fourth branch bracket 63, the third fixing bracket 32 is disposed in the second sleeve, the second annular bracket 61 is fixedly connected with the second sleeve and is disposed outside the second sleeve, the third sleeve 6 is connected with the second annular bracket 61 and is disposed outside the second annular bracket 61, the third branch bracket 62 and the fourth branch bracket 63 are connected with each other and are disposed outside the third sleeve 6, and the third branch bracket 62 and the fourth branch bracket 63 connected with each other are also connected with the inner wall of the purifier body 10. The second annular bracket 61, the third branch bracket 62 and the fourth branch bracket 63 are mainly used for pressing and fixing the third sleeve 6, play a role in supporting and separating, and can also ensure the filtering area of the second sleeve and the third sleeve 6 to a certain extent, and the second annular bracket 61, the third branch bracket 62 and the fourth branch bracket 63 are of grid structures.

Referring to fig. 5, in the preferred embodiment, the third fixing bracket 32 and the second sleeve are disposed at intervals, and the second annular bracket 61, the third branch bracket 62 and the fourth branch bracket 63 are provided with a plurality of ventilation holes at intervals. The ventilation holes on the second annular support 61, the third branch support 62 and the fourth branch support 63 are mainly matched with the filter cavity 7 to form a return air chamber, so that air is effectively purified, and the second sleeve, the third sleeve 6, the second annular support 61, the third branch support 62 and the fourth branch support 63 are not bonded and sealed with the rice-shaped support through organic glue, but are bonded and sealed through the annular supports. The structure simplifies the assembly steps and is more convenient for the disinfection treatment of the product in the later period.

Referring to fig. 5, in a preferred embodiment, the second sleeve includes a third connection pipe 64 and a fourth connection pipe 65, one end of the third connection pipe 64 is connected to the top plate, the other end is connected to the fourth connection pipe 65, the fourth connection pipe 65 is also connected to the bottom plate, and the third connection pipe 64 is smaller than the radius of the fourth connection pipe 65.

The gas purifier provided by the utility model has longer service life, and the service life of the device is more than 1.5 hours in experiments of generating smoke by continuous cutting of a scalpel. The common endoscopic surgery is within 10 hours, and the time for generating smoke by cutting with a practical surgical knife is difficult to exceed 1.5 hours, so that the service life of the surgical knife can meet the use requirements of the endoscopic surgery.

The beneficial effects of the utility model are as follows: the utility model provides a novel laparoscopic surgery gas purifier which is smaller in size, more convenient to install and use and better in air purifying effect.

In this specification, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description of the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The utility model provides a novel laparoscopic surgery gas purifier, its characterized in that, include the clarifier main part and locate the air inlet in the clarifier main part, be equipped with permeability cell, first filter layer and second filter layer in the clarifier main part, permeability cell still with the air inlet is connected, first filter layer cover is established the permeability cell is outside, the second filter layer with the inner wall connection of clarifier main part, first filter layer with form the filtration cavity between the second filter layer, the clarifier main part still is equipped with the gas outlet, the gas outlet is a plurality of, the gas outlet passes through the second filter layer with the filtration cavity UNICOM.

2. The novel laparoscopic surgery gas purifier according to claim 1, wherein a first annular support is further arranged in the ventilation tube, the first filter layer comprises a first branch support, a second branch support and a first sleeve, the first branch support and the second branch support are connected with each other and sleeved outside the ventilation tube, the first sleeve is connected with the first branch support and the second branch support which are connected with each other, the first sleeve is sleeved outside the first branch support and the second branch support, a plurality of ventilation holes are formed in the first annular support, the first branch support and the second branch support, and a plurality of ventilation holes are formed in the first annular support, the first branch support and the second branch support at intervals.

3. The novel laparoscopic surgery gas purifier according to claim 1, wherein the purifier body comprises a top cover, a bottom cover and a side plate, two ends of the side plate are respectively connected with the top cover and the bottom cover, the air inlet is positioned on the top cover, the plurality of air outlets are positioned on the side plate, a space is arranged between the plurality of air outlets, one end of the air permeability pipe is connected with the top cover through the air inlet, a first connecting component is arranged on the bottom cover, and the other end of the air permeability pipe is connected with the bottom cover through the first connecting component.

4. The novel laparoscopic surgery gas purifier according to claim 3, wherein the end of the side plate is provided with a clamping block, the bottom cover is provided with a clamping groove which is in matched connection with the clamping block, and when the side plate is connected with the bottom cover, the clamping block is in matched connection with the clamping groove.

5. The novel laparoscopic surgery gas purifier of claim 3, wherein the top cover is further provided with a second connecting component, the second connecting component comprises a first fixing support and a second fixing support, the second fixing support is sleeved outside the first fixing support, the first fixing support and the second fixing support are arranged at intervals, the ventilation tube is further provided with a first annular support, and the first fixing support is connected with the ventilation tube through the first annular support.

6. The novel laparoscopic surgery gas purifier of claim 5, wherein the first filter layer comprises a first sleeve, the first sleeve comprises a first connecting pipe and a second connecting pipe which are connected with each other, the first connecting pipe is connected with the second fixing support and sleeved outside the second fixing support, the second connecting pipe and the second connecting component are connected through a gap between the first fixing support and the second fixing support, the first connecting pipe is larger than the radius of the second connecting pipe, a fixing ring is further arranged on the second connecting pipe, and the second connecting pipe is connected with the bottom cover through the first connecting component.

7. The novel laparoscopic surgery gas purifier of claim 1, further comprising a connector and a fifth connecting tube, wherein one end of the fifth connecting tube is connected with the gas inlet, and the other end of the fifth connecting tube is connected with the connector; or alternatively, the first and second heat exchangers may be,

8. The novel laparoscopic surgery gas purifier of claim 1, wherein a third fixed support is disposed in the filter cavity, the second filter layer comprises a second sleeve, a third sleeve, a second annular support, a third branch support and a fourth branch support, the third fixed support is disposed in the second sleeve, the second annular support is fixedly connected with the second sleeve and is disposed outside the second sleeve, the third sleeve is connected with the second annular support and is sleeved outside the second annular support, the third branch support and the fourth branch support are connected with each other and are sleeved outside the third sleeve, and the third branch support and the fourth branch support which are connected with each other are also connected with the inner wall of the purifier body.

9. The novel laparoscopic surgery gas purifier of claim 8, wherein a plurality of ventilation holes are formed in the second annular support, the third branch support and the fourth branch support at intervals between the third fixed support and the second sleeve, and a plurality of ventilation holes are formed in the second annular support, the third branch support and the fourth branch support at intervals between the ventilation holes.

10. The novel laparoscopic surgical gas purifier of claim 8, wherein said purifier body comprises a top cap, a bottom cap and a side plate, said second sleeve comprises a third connecting tube, one end of said third connecting tube is connected to said top cap, the other end is connected to said fourth connecting tube, said fourth connecting tube is further connected to said bottom cap, and said third connecting tube is smaller than the radius of said fourth connecting tube.