Smoke extractor for laser operation

Abstract

The invention provides a smoke exhaust device for a laser operation, which comprises a smoke exhaust hood, the smoke exhaust hood is of a double-layer structure, the double-layer structure comprises an inner-layer conical hood and an outer-layer conical hood, a honeycomb net is arranged on the inner-layer conical hood, and a fastening adjusting mechanism is arranged at the upper end part of the smoke exhaust hood. A hollow structure is arranged between the outer-layer conical cover and the inner-layer conical cover to form a hollow cavity, and the hollow cavity contains smoke entering through the honeycomb net. And a central air suction pipe is arranged on the outer surface of the outer-layer conical cover. And the central air suction pipe is connected into an inner cavity of the hollow cavity. And the central air suction pipe is connected with an external exhaust pipeline. Smoke generated in the laser operation process can be quickly and effectively discharged out of an operation area, air is kept clean, and a good operation environment is provided for an operation. Due to the design of the honeycomb net on the inner-layer conical cover, some impurities in the smoke can be preliminarily filtered when the smoke enters the hollow cavity, and potential hazards to the environment and human bodies are reduced.

Description

Technical Field

[0001] The invention relates to the field of laser surgery, and in particular to a smoke exhaust device used in laser surgery. Background Art

[0002] During laser surgery, a large amount of smoke is generated, which not only affects the visual field of the surgical area and interferes with the doctor's operation, but also may contain harmful chemicals, posing a threat to the health of medical staff. Therefore, effectively eliminating the smoke generated during the operation is an important issue in laser surgery.

[0003] In the prior art, some laser surgical smoke exhaust devices have many shortcomings. First, the existing smoke exhaust devices cannot quickly and effectively exhaust smoke from the surgical area, causing smoke to fill the surgical area, affecting the doctor's vision and operation, and increasing the difficulty and risk of the operation. The existing smoke exhaust devices do not perform preliminary filtration of impurities in the smoke, so that the exhausted smoke may still contain harmful particles.

[0004] Existing smoke exhaust devices have difficulties in fixing and adjusting the position, making it difficult to ensure that the smoke exhaust hood is accurately aimed at the surgical site, and smoke cannot be effectively collected, which affects the smoke exhaust effect. Due to untimely or incomplete smoke exhaust, the smoke in the surgical area may affect the doctor's judgment of the surgical situation, increase the risk of accidents during surgery, and pose a certain threat to patient safety. Existing smoke exhaust devices cannot effectively protect medical staff from harmful substances in the smoke. Long-term exposure to such an environment may cause medical staff to develop health problems such as respiratory diseases. The existing smoke exhaust device has an unsatisfactory smoke exhaust effect, resulting in unclear surgical field of view, which will reduce the doctor's operating efficiency, prolong the operation time, and increase the patient's pain and surgical costs. Therefore, we have made improvements to this and proposed a smoke exhaust device for laser surgery. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the existing background technology. In order to achieve the above invention purpose, the present invention provides the following technical solutions: a smoke exhaust device for laser surgery, comprising a smoke exhaust hood, the smoke exhaust hood is set as a double-layer structure, the double-layer structure includes an inner conical hood and an outer conical hood, the inner conical hood is provided with a honeycomb net, and the upper end of the smoke exhaust hood is provided with a fastening and adjusting mechanism.

[0006] As a preferred technical solution of the present invention, a hollow structure is provided between the outer conical cover and the inner conical cover to form a hollow cavity, and the hollow cavity accommodates the smoke entering through the honeycomb mesh.

[0007] As a preferred technical solution of the present invention, a central air intake pipe is provided on the outer surface of the outer conical cover.

[0008] As a preferred technical solution of the present invention, the central air intake pipe is connected to the inner cavity of the hollow cavity.

[0009] As a preferred technical solution of the present invention, the central air intake pipe is connected to the external exhaust pipe.

[0010] As a preferred technical solution of the present invention, the smoke exhaust hood adopts a conical structure.

[0011] As a preferred technical solution of the present invention, the fastening and adjusting mechanism includes a fastening and adjusting belt, a fastening slot component, a tightness adjusting Japanese-shaped buckle, and a fastening buckle plug, and the fastening and adjusting belt is fastened and matched with the outer conical cover.

[0012] As a preferred technical solution of the present invention, one end of the fastening adjustment belt is connected to the fastening slot component, the other end of the fastening adjustment belt is connected to the tension adjustment buckle, the tension adjustment buckle is connected to the fastening buckle plug, and the fastening buckle plug cooperates with the fastening slot component.

[0013] A smoke exhaust method for a smoke exhaust device for laser surgery, comprising the following steps:

[0014] Step 1: Before performing laser surgery, first fix the smoke exhaust device on the laser surgery instrument through a fastening adjustment mechanism;

[0015] Step 2: After fixing the smoke exhaust device, place it above the surgical area so that the opening of the smoke exhaust hood is accurately aligned with the surgical site; ensure that the honeycomb mesh on the inner conical hood can be fully exposed to the smoke generated by the surgery;

[0016] Step 3: When the laser surgery starts and smoke is generated, the smoke will pass through the honeycomb mesh on the inner conical cover and enter the hollow cavity between the outer conical cover and the inner conical cover; due to the design of the honeycomb mesh, some impurities in the smoke will be initially filtered;

[0017] Step 4: The central suction pipe disposed on the outer surface of the outer conical cover is connected to the inner cavity of the hollow cavity, and the smoke in the hollow cavity is sucked out by negative pressure;

[0018] Step 5: The central air intake pipe is connected to the external exhaust pipe. The smoke sucked out will go along the central air intake pipe into the external exhaust pipe, and the external exhaust pipe will exhaust the smoke.

[0019] As a preferred technical solution of the present invention, the specific steps of step 1 are:

[0020] Step 11, connect and fix the fastening slot member at one end of the fastening adjustment belt to the corresponding position on the outer conical cover;

[0021] Step 12: Pass the other end of the fastening adjustment belt through the elastic adjustment buckle, and adjust the length of the fastening adjustment belt according to actual needs to ensure that the smoke exhaust hood can fit tightly above the surgical area;

[0022] Step 13. After adjusting the length of the fastening adjustment belt, connect the elastic adjustment Japanese buckle with the fastening buckle plug, and insert the fastening buckle plug into the fastening slot to fix the exhaust hood on the laser surgical instrument.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] Through the synergistic effect of the double-layer conical cover structure, honeycomb net, central suction pipe and external exhaust pipe, the smoke generated during laser surgery can be quickly and effectively discharged from the surgical area, keeping the air clean and providing a good operating environment for surgery. The honeycomb net design on the inner conical cover can initially filter some impurities in the smoke when it enters the hollow cavity, reducing potential harm to the environment and human body.

[0025] The fastening and adjusting mechanism includes a fastening and adjusting belt, a fastening slot, a tightness adjusting Japanese buckle and a fastening buckle plug, which can firmly fix the smoke exhaust hood on the laser surgical instrument, and flexibly adjust the position and fit according to actual needs, so as to ensure that the opening of the smoke exhaust hood is accurately aligned with the surgical site and effectively collect smoke. The invention timely discharges smoke from the surgical area, helps to improve the safety of the surgery, reduces the interference of smoke on the doctor's vision, and reduces the risk of surgery.

[0026] The present invention prevents medical staff from being exposed to smoke for a long time, reduces the risk of inhaling harmful gases and particles, and protects their health. Good smoke exhaust effect and clear surgical field of view help doctors to perform surgical operations more attentively, and improve surgical efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A bottom-up structural schematic diagram provided by the present invention;

[0028] Figure 2 A schematic diagram of a front view stereoscopic structure provided by the present invention;

[0029] Figure 3 A schematic diagram of the unfolded structure of the inner conical cover provided by the present invention;

[0030] Figure 4 A schematic diagram of the main structure provided by the present invention;

[0031] Figure 5 A partial schematic diagram of the fastening and adjusting mechanism provided by the present invention;

[0032] Figure 6A schematic diagram of the unfolded structure of the outer conical cover provided by the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the fastening and adjusting mechanism provided by the present invention.

[0034] Indicated in the figure:

[0035] 1. Smoke exhaust hood; 101. Inner conical hood; 102. Outer conical hood; 2. Honeycomb mesh; 3. Central air intake pipe; 4. Fastening adjustment mechanism; 401. Fastening adjustment belt; 402. Fastening slot parts; 403. Tightness adjustment Japanese buckle; 404. Fastening buckle plug. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0037] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] Example 1: Please refer to Figure 1-Figure 7 A smoke exhaust device for laser surgery includes a smoke exhaust hood 1, which is arranged as a double-layer structure, and the double-layer structure includes an inner conical hood 101 and an outer conical hood 102, and a honeycomb mesh 2 is provided on the inner conical hood 101, and a fastening adjustment mechanism 4 is provided at the upper end of the smoke exhaust hood 1. A hollow structure is arranged between the outer conical hood 102 and the inner conical hood 101 to form a hollow cavity, and the hollow cavity accommodates the smoke entering through the honeycomb mesh 2. A central air intake pipe 3 is arranged on the outer surface of the outer conical hood 102. The central air intake pipe 3 is connected to the inner cavity of the hollow cavity. The central air intake pipe 3 is connected to the external exhaust pipe. The smoke exhaust hood 1 adopts a conical structure.

[0039] The fastening and adjusting mechanism 4 includes a fastening and adjusting belt 401, a fastening and adjusting slot 402, a tightness adjusting Japanese-shaped buckle 403, and a fastening and buckling plug 404. The fastening and adjusting belt 401 is fastened and matched with the outer conical cover 102. One end of the fastening and adjusting belt 401 is connected to the fastening and adjusting slot 402, and the other end of the fastening and adjusting belt 401 is connected to the tightness adjusting Japanese-shaped buckle 403. The tightness adjusting Japanese-shaped buckle 403 is connected to the fastening and buckling plug 404, and the fastening and buckling plug 404 is matched with the fastening and adjusting slot 402.

[0040] Working principle of the smoke exhaust device for laser surgery: The smoke exhaust hood 1 of the smoke exhaust device adopts a double-layer conical structure, including an inner conical hood 101 and an outer conical hood 102. A honeycomb mesh 2 is provided on the inner conical hood 101. When laser surgery is performed, the generated smoke enters the hollow cavity between the outer conical hood 102 and the inner conical hood 101 through the honeycomb mesh 2.

[0041] Since the outer surface of the outer conical cover 102 is provided with a central suction pipe 3, and the central suction pipe 3 is connected to the inner cavity of the hollow cavity, smoke entering the hollow cavity will be sucked into the central suction pipe 3. The central suction pipe 3 is connected to the external exhaust pipe to discharge the smoke out of the surgical area.

[0042] During use, the smoke exhaust hood 1 is fixed in a suitable position by the fastening and adjusting mechanism 4. The fastening and adjusting mechanism 4 includes a fastening and adjusting belt 401, a fastening slot component 402, a tension adjustment Japanese-shaped buckle 403 and a fastening and buckle plug 404. The fastening and adjusting belt 401 is fastened and matched with the outer conical hood 102, one end of which is connected to the fastening slot component 402, and the other end is connected to the tension adjustment Japanese-shaped buckle 403, and the tension adjustment Japanese-shaped buckle 403 is then connected to the fastening and buckle plug 404, and finally the fastening and buckle plug 404 cooperates with the fastening slot component 402 to achieve the fixation and position adjustment of the smoke exhaust hood 1, so as to ensure that it can effectively collect smoke.

[0043] Embodiment 2: A smoke exhaust method for a smoke exhaust device for laser surgery, comprising the following steps:

[0044] Step 1: Before performing laser surgery, first fix the smoke exhaust device on the laser surgery instrument through the fastening adjustment mechanism 4;

[0045] Step 2: After the smoke exhaust device is fixed, place it above the surgical area so that the opening of the smoke exhaust hood 1 is accurately aligned with the surgical site; ensure that the honeycomb mesh 2 on the inner conical hood 101 can be fully exposed to the smoke generated by the surgery;

[0046] Step 3: When the laser surgery starts and smoke is generated, the smoke will pass through the honeycomb mesh 2 on the inner conical cover 101 and enter the hollow cavity between the outer conical cover 102 and the inner conical cover 101; due to the design of the honeycomb mesh 2, some impurities in the smoke will be initially filtered;

[0047] Step 4: The central suction pipe 3 disposed on the outer surface of the outer conical cover 102 is connected to the inner cavity of the hollow cavity, and the smoke in the hollow cavity is sucked out by negative pressure;

[0048] Step 5: The central air intake pipe 3 is connected to the external exhaust pipe, and the smoke sucked out will enter the external exhaust pipe along the central air intake pipe 3, and the external exhaust pipe will exhaust the smoke.

[0049] Specific steps for step 1:

[0050] Step 11, connect and fix the fastening slot member 402 at one end of the fastening adjustment belt 401 to the corresponding part on the outer conical cover 102;

[0051] Step 12: Pass the other end of the tightening adjustment belt 401 through the elastic adjustment buckle 403, and adjust the length of the tightening adjustment belt 401 according to actual needs to ensure that the smoke exhaust hood 1 can fit tightly above the surgical area;

[0052] Step 13: After adjusting the length of the fastening adjustment belt 401, connect the elastic adjustment Japanese buckle 403 with the fastening buckle plug 404, and insert the fastening buckle plug 404 into the fastening slot 402 to fix the smoke exhaust hood 1 on the laser surgical instrument.

[0053] Before performing laser surgery, the smoke exhaust device is fixed on the laser surgical instrument through the following specific steps: first, the fastening slot component 402 at one end of the fastening adjustment belt 401 is connected and fixed to the corresponding part of the outer conical cover 102; then, the other end of the fastening adjustment belt 401 is passed through the tension adjustment buckle 403, and the length of the fastening adjustment belt 401 is adjusted according to actual needs, so that the smoke exhaust hood 1 can fit tightly above the surgical area; finally, after adjusting the length, the tension adjustment buckle 403 is connected to the fastening buckle plug 404, and the fastening buckle plug 404 is inserted into the fastening slot component 402, so as to achieve a firm fixation of the smoke exhaust hood 1 on the laser surgical instrument.

[0054] After the smoke exhaust device is fixed, it is placed above the surgical area so that the opening of the smoke exhaust hood 1 is accurately aligned with the surgical site, and the honeycomb mesh 2 on the inner conical hood 101 is fully exposed to the smoke generated by the surgery. When the laser surgery begins and smoke is generated, the smoke will pass through the honeycomb mesh 2 on the inner conical hood 101 and enter the hollow cavity between the outer conical hood 102 and the inner conical hood 101. The design of the honeycomb mesh 2 can preliminarily filter some impurities in the smoke.

[0055] Next, the central suction pipe 3 disposed on the outer surface of the outer conical cover 102 will use negative pressure to suck out the smoke in the hollow cavity because it is connected to the inner cavity of the hollow cavity. Finally, the central suction pipe 3 is connected to the external exhaust pipe, and the sucked smoke will enter the external exhaust pipe along the central suction pipe 3, and the smoke will be discharged by the external exhaust pipe, thereby realizing the smoke exhaust function during the laser surgery and keeping the air in the surgical area clean.

[0056] Example 3: In a laser operating room of a hospital, an eye laser surgery is about to be performed. Before the surgery begins, the medical staff operates the laser surgery smoke exhaust device according to the following steps:

[0057] First, perform step 1. The medical staff connects and fixes the fastening slot member 402 at one end of the fastening adjustment belt 401 of the smoke exhaust device to the corresponding part on the outer conical cover 102, which is step 11. Then, according to step 12, the other end of the fastening adjustment belt 401 is passed through the elastic adjustment Japanese buckle 403, and the length of the fastening adjustment belt 401 is carefully adjusted according to the actual situation and needs of the surgical area, so that the smoke exhaust hood 1 can fit tightly above the surgical area to ensure a good smoke exhaust effect. After the length adjustment is completed, according to step 13, the elastic adjustment Japanese buckle 403 is connected to the fastening buckle plug 404, and the fastening buckle plug 404 is inserted into the fastening slot member 402, so that the smoke exhaust hood 1 is firmly fixed on the laser surgical instrument.

[0058] Then, proceed to step 2. After fixing the smoke exhaust device, the medical staff carefully places it above the surgical area and carefully adjusts the position so that the opening of the smoke exhaust hood 1 is precisely aligned with the surgical site, paying special attention to ensure that the honeycomb mesh 2 on the inner conical hood 101 can be fully exposed to the smoke generated by the surgery to achieve the best smoke collection effect.

[0059] When everything is ready, the laser surgery officially begins. Step 3 is then initiated, and the smoke generated by the surgery smoothly enters the hollow cavity between the outer conical cover 102 and the inner conical cover 101 through the honeycomb mesh 2 on the inner conical cover 101. Due to the special design of the honeycomb mesh 2, some larger particle impurities in the smoke are initially filtered.

[0060] Then, step 4 comes into play. The central air intake pipe 3 disposed on the outer surface of the outer conical cover 102 is connected to the inner cavity of the hollow cavity, and uses a strong negative pressure to quickly suck out the smoke in the hollow cavity.

[0061] Finally, in step 5, the central suction pipe 3 is tightly connected with the external exhaust pipe, and the smoke sucked out smoothly enters the external exhaust pipe along the central suction pipe 3, and is finally discharged out of the operating room by the external exhaust pipe, keeping the air in the operating area clean and providing good environmental conditions for the smooth progress of the operation.

[0062] During the entire operation, this laser surgical smoke exhaust device operated stably, effectively removing the smoke generated by the operation, ensuring the smooth progress of the operation and the health of medical staff.

[0063] Experimental example:

[0064] Experimental purpose: To verify the smoke exhaust effect and performance of the laser surgical smoke exhaust device.

[0065] Experimental equipment: laser surgery equipment, smoke exhaust device for laser surgery, device for simulating surgery to generate smoke, and air quality detection instrument.

[0066] Experimental steps:

[0067] 1. Follow the specific steps in step 1:

[0068] Step 11: Connect and fix the fastening slot member 402 at one end of the fastening adjustment belt 401 to the corresponding position on the outer conical cover 102 .

[0069] Step 12: Pass the other end of the tightening adjustment belt 401 through the elastic adjustment buckle 403, and adjust the length of the tightening adjustment belt 401 according to the actual situation of the simulated surgical area to ensure that the smoke exhaust hood 1 can fit tightly above the simulated surgical area.

[0070] Step 13: After adjusting the length of the fastening adjustment belt 401, connect the elastic adjustment Japanese buckle 403 with the fastening buckle plug 404, and insert the fastening buckle plug 404 into the fastening slot 402 to fix the smoke exhaust hood 1 on the simulated laser surgical instrument.

[0071] 2. After completing step 1, proceed to step 2: place the fixed smoke exhaust device above the simulated surgical area, align the opening of the smoke exhaust hood 1 accurately with the position where the simulated smoke is generated, and ensure that the honeycomb mesh 2 on the inner conical hood 101 can be fully exposed to the simulated smoke.

[0072] 3. Start the device for simulating the generation of smoke during surgery, and start the process of simulating the generation of smoke during laser surgery. At this point, enter step 3: the smoke passes through the honeycomb mesh 2 on the inner conical cover 101 and enters the hollow cavity between the outer conical cover 102 and the inner conical cover 101, and the honeycomb mesh 2 performs preliminary filtering of some impurities in the smoke.

[0073] 4. As smoke is generated, proceed to step 4: the central suction pipe 3 provided on the outer surface of the outer conical cover 102 is connected to the inner cavity of the hollow cavity through the central suction pipe 3, and the smoke in the hollow cavity is sucked out by negative pressure.

[0074] 5. Finally, proceed to step 5: the central air intake pipe 3 is connected to the external exhaust pipe, the smoke sucked out enters the external exhaust pipe along the central air intake pipe 3, and the smoke is discharged from the external exhaust pipe.

[0075] Experimental data recording and analysis:

[0076] During the experiment, air quality detection instruments were used to monitor the air quality in real time at different locations in the simulated surgical area and at the air inlet and exhaust outlet of the smoke exhaust device, and data such as smoke concentration and particulate matter content were recorded.

[0077] After the experiment, the recorded data was analyzed:

[0078] 1. Compare the smoke concentration and particulate matter content in different locations of the simulated surgical area before and after the use of the smoke exhaust device, and evaluate the effect of the smoke exhaust device on improving the air quality in the surgical area.

[0079] 2. Analyze the changes in smoke concentration and particulate matter content at the air inlet and exhaust port of the smoke exhaust device to determine the filtering and exhaust performance of the smoke exhaust device.

[0080] Experimental results:

[0081] Through the analysis of experimental data, it was found that after using the laser surgery smoke exhaust device, the smoke concentration and particulate matter content in the simulated surgical area were significantly reduced, and the air quality was significantly improved. The smoke concentration at the air inlet of the smoke exhaust device was high. After preliminary filtration by the honeycomb mesh 2 and negative pressure suction by the central suction pipe 3, the smoke concentration and particulate matter content at the exhaust port dropped significantly, indicating that the smoke exhaust device has good filtering and smoke exhaust effects, can effectively remove the smoke generated during laser surgery, and keep the air in the surgical area clean.

[0082] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A smoke exhaust device for laser surgery, characterized in that: The invention comprises a smoke exhaust hood (1), wherein the smoke exhaust hood (1) is arranged as a double-layer structure, wherein the double-layer structure comprises an inner conical hood (101) and an outer conical hood (102), wherein a honeycomb net (2) is provided on the inner conical hood (101), and a fastening and adjusting mechanism (4) is provided at the upper end of the smoke exhaust hood (1).

2. A smoke exhaust device for laser surgery according to claim 1, characterized in that: A hollow structure is provided between the outer conical cover (102) and the inner conical cover (101), forming a hollow cavity, and the hollow cavity accommodates smoke entering through the honeycomb mesh (2).

3. A smoke exhaust device for laser surgery according to claim 2, characterized in that: The outer surface of the outer conical cover (102) is provided with a central air intake pipe (3).

4. A smoke exhaust device for laser surgery according to claim 3, characterized in that: The central air intake pipe (3) is connected to the inner cavity of the hollow cavity.

5. A smoke exhaust device for laser surgery according to claim 4, characterized in that: The central air intake pipe (3) is connected to the external air exhaust pipe.

6. A smoke exhaust device for laser surgery according to claim 5, characterized in that: The smoke exhaust hood (1) adopts a conical structure.

7. A smoke exhaust device for laser surgery according to claim 6, characterized in that: The fastening and adjusting mechanism (4) comprises a fastening and adjusting belt (401), a fastening slot component (402), a tightness adjustment Japanese-style buckle (403), and a fastening buckle plug (404); the fastening and adjusting belt (401) is fastened and matched with the outer conical cover (102).

8. A smoke exhaust device for laser surgery according to claim 7, characterized in that: One end of the fastening adjustment belt (401) is connected to the fastening slot component (402), the other end of the fastening adjustment belt (401) is connected to the tension adjustment buckle (403), the tension adjustment buckle (403) is connected to the fastening buckle plug (404), and the fastening buckle plug (404) is matched with the fastening slot component (402).

9. A smoke exhaust method for a smoke exhaust device used in laser surgery, characterized in that: The following steps are involved: Step 1: Before performing laser surgery, first fix the smoke exhaust device on the laser surgery instrument through the fastening adjustment mechanism (4); Step 2: After the smoke exhaust device is fixed, place it above the surgical area so that the opening of the smoke exhaust hood (1) is accurately aligned with the surgical site; ensure that the honeycomb mesh (2) on the inner conical hood (101) can be fully exposed to the smoke generated during the surgery; Step 3: When the laser surgery starts and smoke is generated, the smoke will pass through the honeycomb mesh (2) on the inner conical cover (101) and enter the hollow cavity between the outer conical cover (102) and the inner conical cover (101); due to the design of the honeycomb mesh (2), some impurities in the smoke will be initially filtered; Step 4: The central air suction pipe (3) disposed on the outer surface of the outer conical cover (102) is connected to the inner cavity of the hollow cavity, and the smoke in the hollow cavity is sucked out by negative pressure; Step 5: The central air intake pipe (3) is connected to the external exhaust pipe, and the smoke sucked out will enter the external exhaust pipe along the central air intake pipe (3), and the external exhaust pipe will exhaust the smoke.

10. The smoke exhaust method of a smoke exhaust device for laser surgery according to claim 9, characterized in that: Specific steps for step 1: Step 11, connecting and fixing the fastening slot member (402) at one end of the fastening adjustment belt (401) to the corresponding position on the outer conical cover (102); Step 12: Pass the other end of the tightening adjustment belt (401) through the elastic adjustment buckle (403), and adjust the length of the tightening adjustment belt (401) according to actual needs to ensure that the smoke exhaust hood (1) can fit tightly above the surgical area; Step 13: After adjusting the length of the tightening adjustment belt (401), connect the elastic adjustment buckle (403) to the tightening buckle plug (404), and insert the tightening buckle plug (404) into the tightening slot (402), and fix the exhaust hood (1) on the laser surgical instrument.

Images