An anti-fogging and anti-interference endoscope

Abstract

The present invention discloses an anti-fogging and anti-interference endoscope, which belongs to the technical field of medical equipment, and comprises a mirror body, wherein the mirror body is provided with an outer tube and an inner tube, an observation head is provided at one end of the inner tube away from the mirror body, and a lens and an illumination optical fiber are provided inside the observation head. The present invention, before the operation, inflates and expands the cavity tissue of the patient's observation area by passing hot air between the outer tube and the inner tube, which can improve the observation field of view and maintain the cavity pressure. At the same time, the cooperation of the gas and the blade drives the rotating ring to rotate, and the gas pushes the jet pipe to rise, so that the pipeline rotates and blows air on the surface of the observation head, heats and blows the patient's body to evaporate and remove the water vapor condensed on the surface of the observation head just after entering the body, and at the same time, the temperature of the observation head before starting to work can be consistent with the temperature in the patient's body, reducing the temperature difference between the observation head and the body, thereby avoiding water condensation, avoiding the generation of fog during observation, and ensuring the visual clarity during observation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an anti-fogging and anti-interference endoscope. Background Art

[0002] An endoscope is a medical device, a slender tubular device with a light source and a lens. It can enter the human body through surgical incisions and transmit internal images in real time, allowing doctors to intuitively observe the condition of the internal organs and tissues of the human body. Endoscopic surgery can also be performed in conjunction with surgical instruments.

[0003] During the deployment and observation of existing endoscopes, when the endoscope enters the patient's body, the temperature will increase significantly, which can easily cause the blood or tissue fluid in the patient's body to condense on the surface of the endoscope lens in the form of water vapor, affecting the use of the endoscope.

[0004] How to invent an anti-fogging and anti-interference endoscope to improve these problems has become an urgent problem to be solved by technicians in this field. Summary of the invention

[0005] In order to make up for the above deficiencies, the present invention provides an anti-fogging and anti-interference endoscope, aiming to improve the problems raised by the above background technology.

[0006] The present invention is achieved in that:

[0007] The present invention provides an anti-fogging and anti-interference endoscope, comprising a scope body, wherein the scope body is provided with an outer tube and an inner tube, an observation head is provided at one end of the inner tube away from the scope body, a lens and an illumination optical fiber are provided inside the observation head, and the outer tube is further provided with:

[0008] The transmission mechanism introduces preheating gas to provide driving force for preheating and cleaning the lens;

[0009] Preheating mechanism, used to preheat and clean the lens before surgery;

[0010] Cleaning component, used to clean the lens during surgery;

[0011] The transmission mechanism includes a rotating ring 1 rotatably connected between the outer tube and the inner tube, the mirror body is provided with an air supply port connected to the gap between the outer tube and the inner tube, the outer wall of the inner tube is also fixedly connected with a fixing ring and a connecting ring, the bottom of the connecting ring is provided with a plurality of groups of blades distributed along a ring, the blades are matched with the inner cavity of the fixing ring, the connecting ring is rotatably connected with the rotating ring 1, the fixing ring is provided with an air inlet on one side facing the air supply port, the rotating ring 1 is provided with an air cavity, the bottom of the connecting ring is provided with air holes matched with the blades and the air inlet, and the top of the connecting ring is provided with a connecting groove connected with the air cavity;

[0012] The preheating mechanism comprises an air jet pipe sleeved inside the rotating ring, a spring is arranged between the air jet pipe and the rotating ring, and a pipeline is opened inside the air jet pipe.

[0013] Preferably, the top outlet of the pipeline is provided with a bend toward the observation head, the bottom of the pipeline is provided with an opening extending to the side wall of the jet pipe, and a connecting pipe is provided inside the swivel 1.

[0014] Preferably, the communicating conduit is arc-shaped and matches with the bottom opening of the pipeline.

[0015] Preferably, the swivel 1 is provided with a pressure relief hole connecting the outside with the air cavity, and the diameter of the pressure relief hole is smaller than the diameter of the outlet at the top of the pipeline.

[0016] Preferably, the cleaning component includes a piston block sleeved inside a swivel, an exhaust pipe is provided inside the piston block, a spring three is provided between the piston block and the swivel, a rotating block is provided on the top of the piston block, a rotating joint is provided at the connection between the piston block and the rotating block, and a torsion spring two is provided at the connection between the piston block and the rotating block, a cleaning block is rotatably connected to the top of the rotating block, a rectangular groove is provided on the side wall of the cleaning block facing the observation head, a first cleaning cotton is provided inside the rectangular groove, a second cleaning cotton corresponding to the first cleaning cotton is provided on the side of the cleaning block away from the first cleaning cotton, and a detection component is also provided inside the cleaning block.

[0017] Preferably, the spring constant of spring three is greater than the spring constant of spring one.

[0018] Preferably, the exhaust pipe is T-shaped.

[0019] Preferably, the detection component includes a sealing groove provided inside the cleaning block, a slider 1 is sleeved on the bottom of the sealing groove, a torsion spring 1 is arranged between the rotating block and the cleaning block, a slider 2 corresponding to the slider 1 is sleeved on the top of the rotating block, a spring is arranged between the slider 1 and the rotating block, a slot matching the slider 2 is also arranged at the bottom of the cleaning block, a rectangular block corresponding to the rectangular groove is sleeved on the side wall of the inner tube, a spring 2 is arranged between the rectangular block and the inner tube, and chamfers are arranged on the upper and lower sides of the rectangular block.

[0020] In summary, the beneficial effects of the present invention are:

[0021] 1. Before the operation, hot air is passed between the outer tube and the inner tube to inflate and expand the cavity tissue of the patient's observation area, which can improve the observation field of view and maintain the cavity pressure. At the same time, the cooperation of gas and blades drives the rotating ring to rotate, and the gas pushes the jet tube to rise, so that the pipeline rotates and blows air to the surface of the observation head, and heats and purges the water vapor condensed on the surface of the observation head just entering the body to evaporate and remove the water vapor condensed on the surface of the observation head before it starts working. At the same time, the temperature of the observation head can be consistent with the temperature in the patient's body before starting to work, reducing the temperature difference between the observation head and the body, thereby avoiding water condensation and the formation of fog during observation, ensuring visual clarity during observation, and no preoperative heating is required, and it can be directly preheated in the patient's body, which can not only reduce the patient's discomfort, but also make the observation head slowly heat up to avoid excessive temperature difference. At the same time, the observation head heated in the body can cooperate with the body temperature to achieve a continuous insulation effect and thus achieve a long-term and stable anti-fogging effect.

[0022] 2. When the observation head is contaminated with liquid during the operation, the pressure of the body cavity can be maintained by introducing pressurized gas to reduce bleeding and facilitate subsequent operations. At the same time, the cleaning block can be extended and rotated, and the surface of the observation head can be rotated, wiped and blown to clean it in cooperation with the jet tube. The observation head can be efficiently cleaned during the operation. At the same time, the first cleaning cotton can be squeezed and tested after the cleaning block is reset, which can discharge excess water inside the first cleaning cotton and make the absorption liquid evenly diffuse to avoid accumulation, thereby ensuring the subsequent cleaning effect of the first cleaning cotton after recycling. When the total amount of water absorbed inside the first cleaning cotton reaches the upper limit, the cleaning block is disengaged from the clamping of the slider two through the cooperation of the slider one and the slider two, and is rotated to use the second cleaning cotton for subsequent cleaning operations, thereby realizing automatic detection and replacement of the first cleaning cotton and ensuring the cleaning effect of the observation head. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is an overall schematic diagram of the mirror body provided by an embodiment of the present invention.

[0025] Figure 2 It is an overall schematic diagram of the observation head provided by an embodiment of the present invention.

[0026] Figure 3 It is a schematic diagram of the interior of the observation head provided by an embodiment of the present invention.

[0027] Figure 4 It is an overall schematic diagram of a swivel provided in an embodiment of the present invention.

[0028] Figure 5 It is a schematic diagram of the interior of a rotating ring and a fixed ring provided in an embodiment of the present invention.

[0029] Figure 6 It is an overall schematic diagram of a cleaning block provided in an embodiment of the present invention.

[0030] Figure 7 It is a schematic diagram of the interior of a cleaning block provided in an embodiment of the present invention.

[0031] Figure 8 The present invention Figure 7 An enlarged schematic diagram of point A.

[0032] Fig. 9 It is an internal schematic diagram of the rotating block provided in an embodiment of the present invention when rotating.

[0033] Fig.10 Schematic diagram of the interior of the gas injection pipe provided in an embodiment of the present invention.

[0034] Fig.11 It is a schematic diagram of a cleaning block rotating cleaning observation head provided in an embodiment of the present invention.

[0035] Legend:

[0036] 100, mirror body; 101, outer tube; 102, observation head; 103, inner tube; 104, illumination fiber; 105, lens; 106, air supply port; 200, rotating ring 1; 201, fixing ring; 202, connecting ring; 203, blade; 204, air inlet; 205, air hole; 206, air cavity; 207, connecting groove; 208, pressure relief hole; 300, jet pipe; 301, pipeline; 302, connecting Through pipe; 303, spring one; 400, piston block; 401, rotating block; 402, cleaning block; 403, rectangular groove; 404, first cleaning cotton; 405, second cleaning cotton; 406, sealing groove; 407, slider one; 408, slider two; 409, slot; 410, torsion spring one; 411, exhaust pipe; 412, rectangular block; 413, spring two; 414, spring three; 415, torsion spring two. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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.

[0038] Reference Figure 1-11 The present invention provides an anti-fogging and anti-interference endoscope, comprising a mirror body 100, wherein the mirror body 100 is provided with an outer tube 101 and an inner tube 103, wherein an observation head 102 is provided at one end of the inner tube 103 away from the mirror body 100, wherein a lens 105 and an illumination optical fiber 104 are provided inside the observation head 102, and the outer tube 101 is further provided with:

[0039] The transmission mechanism introduces preheating gas to provide driving force for preheating and cleaning the lens 105;

[0040] A preheating mechanism, used for preheating and cleaning the lens 105 before surgery;

[0041] A cleaning component, used for cleaning the lens 105 during surgery;

[0042] The transmission mechanism includes a rotating ring 200 rotatably connected between the outer tube 101 and the inner tube 103, the mirror body 100 is provided with an air supply port 106 connected to the gap between the outer tube 101 and the inner tube 103, the outer wall of the inner tube 103 is also fixedly connected with a fixing ring 201 and a connecting ring 202, a plurality of groups of blades 203 distributed along a ring are arranged at the bottom of the connecting ring 202, the blades 203 are matched with the inner cavity of the fixing ring 201, the connecting ring 202 is rotatably connected with the rotating ring 200, an air inlet 204 is arranged on the side of the fixing ring 201 facing the air supply port 106, an air cavity 206 is arranged inside the rotating ring 200, an air hole 205 matched with the blades 203 and the air inlet 204 is arranged at the bottom of the connecting ring 202, and a connecting groove 207 connected with the air cavity 206 is arranged at the top of the connecting ring 202;

[0043] The preheating mechanism includes an air jet pipe 300 sleeved inside the rotating ring 200, a spring 303 is arranged between the air jet pipe 300 and the rotating ring 200, and a pipeline 301 is opened inside the air jet pipe 300.

[0044] It should be noted that the blades 203 are designed to be inclined, and the air inlet 204 is also designed to be inclined. When the gas enters the interior of the fixing ring 201 through the air inlet 204, an initial thrust corresponding to the inclined surface of the blades 203 can be provided, thereby facilitating the rotation of the blades 203.

[0045] It should be noted that the surface of the mirror body 100 adopts a composite silver coating containing a stabilizer and an antioxidant. Through the excellent conductivity of silver, it can quickly conduct and disperse electromagnetic energy. Combined with the stainless steel body of the mirror body 100, it can play a good anti-electromagnetic interference effect.

[0046] It should be noted that a circle of light sources connected to the illumination optical fiber 104 is disposed outside the lens 105 to provide auxiliary illumination for observation of the lens 105 .

[0047] It should be noted that the light source provided by the illumination optical fiber 104 can use fluorescence or white light to adapt to different observation lighting requirements. When designed and used as a laparoscope, the diameter of the inner tube 103 is designed to be 10 mm, and the depth of field parameter is set to 3-200 mm. When designed and used as a thoracoscope, the diameter of the inner tube 103 is designed to be 5 mm, and the depth of field parameter is set to 3-100 mm.

[0048] Reference Fig.10 The top outlet of the pipeline 301 is provided with a bend toward the observation head 102 , the bottom of the pipeline 301 is provided with an opening extending to the side wall of the jet pipe 300 , and a connecting pipe 302 is provided inside the swivel 200 .

[0049] Furthermore, the connecting pipe 302 is designed to be arc-shaped and matches with the bottom opening of the pipeline 301 .

[0050] It should be noted that the swivel 200 is provided with a pressure relief hole 208 connecting the outside with the air cavity 206 , and the diameter of the pressure relief hole 208 is smaller than the diameter of the top outlet of the pipeline 301 .

[0051] Reference Figure 4-9 The cleaning component includes a piston block 400 sleeved inside the rotating ring 200, an exhaust pipe 411 is opened inside the piston block 400, a spring three 414 is arranged between the piston block 400 and the rotating ring 200, a rotating block 401 is arranged on the top of the piston block 400, a rotating joint is arranged at the connection between the piston block 400 and the rotating block 401, and a torsion spring two 415 is arranged at the connection between the piston block 400 and the rotating block 401, a cleaning block 402 is rotatably connected to the top of the rotating block 401, a rectangular groove 403 is opened on the side wall of the cleaning block 402 facing the observation head 102, a first cleaning cotton 404 is arranged inside the rectangular groove 403, a second cleaning cotton 405 corresponding to the first cleaning cotton 404 is arranged on the side of the cleaning block 402 away from the first cleaning cotton 404, and a detection component is also arranged inside the cleaning block 402.

[0052] It should be noted that the spring coefficient of spring three 414 is greater than the spring coefficient of spring one 303. Therefore, in the process of increasing air pressure, spring one 303 is stretched first, and the air injection pipe 300 rises and exhausts through the pipeline 301. When the air pressure continues to increase after the air injection pipe 300 moves to the extreme position, the spring three 414 will be stretched to lift the piston block 400, thereby carrying out the cleaning work of the observation head 102.

[0053] It should be noted that the spring coefficient of spring three 414 is greater than the spring coefficient of spring one 303 .

[0054] Furthermore, the exhaust pipe 411 is designed in a T-shape.

[0055] Reference Figure 6-8The detection component includes a sealing groove 406 provided inside the cleaning block 402, a slider 407 is sleeved at the bottom of the sealing groove 406, a torsion spring 410 is arranged between the rotating block 401 and the cleaning block 402, a slider 408 corresponding to the slider 407 is sleeved at the top of the rotating block 401, a spring is arranged between the slider 407 and the rotating block 401, a slot 409 matching the slider 408 is also arranged at the bottom of the cleaning block 402, a rectangular block 412 corresponding to the rectangular groove 403 is sleeved on the side wall of the inner tube 103, a spring 413 is arranged between the rectangular block 412 and the inner tube 103, and chamfers are arranged on the upper and lower sides of the rectangular block 412.

[0056] The working process of the anti-fogging and anti-interference endoscope is as follows:

[0057] After the outer tube 101 is inserted into the patient's body at a suitable observation position, the mirror body 100 is fixed by an external fixing device, and sterile gas close to the body's air temperature is pressurized and input into the outer tube 101 through the air supply port 106. After the gas enters between the outer tube 101 and the inner tube 103, it enters the interior of the fixing ring 201 through the air inlet 204. The corresponding inclined design of the air inlet 204 and the blade 203 can drive the blade 203 to rotate, further driving the rotating ring 200 to rotate as a whole, and the gas enters through the air inlet 204. After entering, the gas passes through the barrier of blade 203, and the gas is transported through blade 203 until it reaches the air hole 205 before entering the inside of the connecting ring 202, and further enters the inside of the air cavity 206 through the connecting groove 207. Through the connection between the air cavity 206 and the jet pipe 300 and the piston block 400, the gas pressure inside the air cavity 206 increases, which can push the jet pipe 300 to rise. When the jet pipe 300 moves to the bottom opening of the pipeline 301 and corresponds to the opening above the connecting pipe 302, the gas can pass through the opening at the bottom of the connecting pipe 302. The liquid enters the observation head 102 through the opening at the top of the connecting pipe 302, is transmitted to the inside of the pipeline 301 through the opening at the top of the pipeline 301, and is discharged through the opening at the top of the pipeline 301. The surface of the observation head 102 is cleaned by blowing through the bending of the opening at the top of the pipeline 301. At the same time, the synchronous rotation of the rotating ring 200 can drive the jet pipe 300 to surround the observation head 102 to blow and preheat the surface of the observation head 102, thereby ensuring the preheating effect of the observation head 102 and avoiding blind spots. The observation head 102 can be effectively preheated by a temperature close to that in the body, which can not only heat, blow and evaporate to remove the condensed water vapor on the surface of the observation head 102 just entering the body, but also make the temperature of the observation head 102 consistent with the temperature in the patient's body before starting to work, reduce the temperature difference between the observation head 102 and the body, thereby avoiding water condensation, avoiding the generation of fog during observation, and ensuring visual clarity during observation. At the same time, the cavity tissue of the patient's observation area can be inflated and expanded by pressurized inflation, which can improve the observation field of view, maintain the cavity pressure, improve the observation quality and facilitate subsequent observation operations.

[0058] It should be noted that, during inflation, the speed at which the pressure inside the air cavity 206 increases is greater than the speed at which the pressure is discharged from the pressure relief hole 208, and the air pressure inside the air cavity 206 can gradually increase. When preheating is completed, the air supply port 106 stops supplying air, and the jet pipe 300 will also reset under the elastic force of the spring 303, and the excess gas inside the air cavity 206 will gradually leak out through the pressure relief hole 208.

[0059] During endoscopic surgery, when tissue fluid or blood produced during the operation adheres to the surface of the observation head 102 and affects the observation, if the distance between the observation head 102 and the internal tissue of the cavity is relatively close, the scope 100 is slightly withdrawn from the patient's body by a short distance. If the observation head 102 and the internal tissue of the cavity are kept at a safe observation distance, sterile gas with a higher pressure can be directly input into the outer tube 101 through the gas supply port 106. The pressure increase can also increase and maintain the patient's intracavitary pressure, reduce bleeding, and facilitate subsequent surgery and operation. At the same time, the pressure of the gas entering the air cavity 206 increases. After the jet tube 300 is extended to the limit position, the air pressure inside the air cavity 206 continues to increase. At this time, the piston block 400 rises under the action of pressure, driving the spring three 414 to stretch. When the piston block 400 and the rotating block After 401 extends out of the rotating ring 200, under the elastic force of the torsion spring 2 415, the rotating block 401 drives the cleaning block 402 to rotate, so that the cleaning block 402 rotates until the first cleaning cotton 404 is in contact with the observation head 102, and the gas inside the air cavity 206 is discharged through the exhaust pipe 411, so that the piston block 400 remains in the extended state. Along with the rotation of the rotating ring 200, the cleaning block 402 can rotate and wipe the surface of the observation head 102 through the first cleaning cotton 404. Along with the jet heating and evaporation of the pipeline 301, the liquid and water mist adhering to the surface of the observation head 102 can be efficiently removed, so as to maintain the cleanliness of the surface of the observation head 102 and the observation clarity. After cleaning, the air supply is stopped, and the excess air pressure is discharged through the pressure relief hole 208, and the jet pipe 300 and the piston block 400 are reset.

[0060] During the resetting process of the piston block 400, the piston block 400 moves downward and can push the rectangular block 412 into the inner tube 103 through the chamfered angle at the top of the rectangular block 412 to compress the spring 2 413. After the piston block 400 passes through the rectangular block 412 and the piston block 400 is reset as a whole, the rectangular block 412 is reset and extended under the elastic force of the spring 2 413, and extends into the interior of the rectangular groove 403 to squeeze the first cleaning cotton 404. By squeezing the first cleaning cotton 404, the moisture absorbed by the first cleaning cotton 404 during the wiping process is evenly diffused inside the first cleaning cotton 404, avoiding local accumulation of the liquid absorbed during the cleaning process, thereby ensuring the subsequent absorption effect of the first cleaning cotton 404 on the liquid as a whole. At the same time, when the first cleaning cotton 404 absorbs a large amount of liquid, the first cleaning cotton 404 can pass through the one-way valve under the action of squeezing to enter the interior of the sealing groove 406 during the squeezing process, and the liquid gathers in the sealing groove 406 under the action of pressure. The inside of the sealing groove 406 can push the slider 1 407 to move downward. When the total amount of liquid absorbed by the first cleaning cotton 404 is large and exceeds the upper limit of the circulation operation of the first cleaning cotton 404, making it difficult to continue the efficient cleaning and absorption treatment later, the amount of liquid entering the sealing groove 406 under the action of pressure reaches a peak. At this time, the liquid pushes the slider 1 407 to move downward until the slider 2 408 is pushed into the inside of the rotating block 401. At this time, the slider 2 408 is disengaged from the card-fitting cooperation with the bottom of the cleaning block 402. When the piston block 400 is extended to clean the observation head 102 next time, the cleaning block 402 is extended and disengaged from the cooperation with the rectangular block 412. Then, the cleaning block 402 is driven to rotate 180° under the elastic force of the torsion spring 1 410, and the second cleaning cotton 405 is replaced to carry out the subsequent cleaning of the observation head 102. At the same time, after the rotation, the slider 2 408 is card-fitted with the position of the card slot 409 to ensure the stability of the cleaning block 402 during subsequent work.

[0061] It is achieved that during the observation process, when the observation head 102 is stained with liquid, the pressure of the body cavity can be maintained by introducing pressurized gas to reduce bleeding and facilitate subsequent operations. At the same time, the cleaning block 402 is extended and rotated, and the air jet tube 300 is cooperated to rotate, wipe and blow the surface of the observation head 102 to clean it, so that the observation head 102 can be efficiently cleaned during the operation. At the same time, after the cleaning block 402 is reset, the first cleaning cotton 404 can be squeezed and tested, and the excess water inside the first cleaning cotton 404 can be discharged and the absorption liquid can be evenly diffused to avoid accumulation, thereby ensuring the subsequent cleaning effect of the first cleaning cotton 404 being recycled. When the total amount of water absorbed inside the first cleaning cotton 404 reaches the upper limit, the cleaning block 402 is separated from the clamping connection of the slider 2 408 through the cooperation of the slider 1 407 and the slider 2 408, and the second cleaning cotton 405 is rotated to use the subsequent cleaning operation, thereby realizing automatic detection and replacement of the first cleaning cotton 404, and ensuring the cleaning effect of the observation head 102.

[0062] It should be noted that the first cleaning cotton 404 and the second cleaning cotton 405 are made of medical sterile cotton. After absorbing the liquid, they can be squeezed to discharge the liquid to ensure subsequent use. However, the squeezing process will cause the internal fiber structure to become smaller or irregular, affecting the subsequent liquid containment and adsorption effect. In addition, during the in vivo observation process, there are fewer cases of contamination with liquid, so the amount of liquid absorbed each time is small. During the circulation process, the frequency of use and the degree of aging fatigue of the first cleaning cotton 404 can be judged by the amount of liquid squeezed into the sealing groove 406 each time. When its absorption amount reaches a certain level, it can be used as an indicator of its usage and aging degree, so that the first cleaning cotton 404 can be replaced again.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-fogging and anti-interference endoscope, comprising a scope body (100), wherein the scope body (100) is provided with an outer tube (101) and an inner tube (103), an observation head (102) is provided at one end of the inner tube (103) away from the scope body (100), and a lens (105) and an illumination optical fiber (104) are provided inside the observation head (102), characterized in that: The outer tube (101) is further provided with: The transmission mechanism introduces preheating gas to provide driving force for preheating and cleaning the lens (105); A preheating mechanism, used for preheating and cleaning the lens (105) before surgery; A cleaning component, used for cleaning the lens (105) during surgery; The transmission mechanism comprises a rotating ring (200) rotatably connected between the outer tube (101) and the inner tube (103); the mirror body (100) is provided with an air supply port (106) connected to the gap between the outer tube (101) and the inner tube (103); the outer side wall of the inner tube (103) is also fixedly connected with a fixing ring (201) and a connecting ring (202); the bottom of the connecting ring (202) is provided with a plurality of blades (203) distributed in an annular shape; the blades (203) and the fixing ring (201) are connected to each other in a manner similar to that of the fixing ring (201). ), the connecting ring (202) is rotatably connected to the rotating ring (200), the fixed ring (201) is provided with an air inlet (204) on the side facing the air supply port (106), the rotating ring (200) is provided with an air cavity (206), the bottom of the connecting ring (202) is provided with an air hole (205) that matches the blade (203) and the air inlet (204), and the top of the connecting ring (202) is provided with a connecting groove (207) that is connected to the air cavity (206); The preheating mechanism comprises an air jet pipe (300) sleeved inside the rotating ring (200), a spring (303) is arranged between the air jet pipe (300) and the rotating ring (200), and a pipeline (301) is opened inside the air jet pipe (300); The cleaning assembly comprises a piston block (400) sleeved inside a rotating ring (200), an exhaust pipe (411) is provided inside the piston block (400), a spring (414) is provided between the piston block (400) and the rotating ring (200), a rotating block (401) is provided on the top of the piston block (400), a rotating joint is provided at the connection between the piston block (400) and the rotating block (401), and a torsion spring is provided at the connection between the piston block (400) and the rotating block (401). Second (415), the top of the rotating block (401) is rotatably connected to a cleaning block (402), a rectangular groove (403) is provided on the side wall of the cleaning block (402) facing the observation head (102), a first cleaning cotton (404) is arranged inside the rectangular groove (403), a second cleaning cotton (405) corresponding to the first cleaning cotton (404) is arranged on the side of the cleaning block (402) away from the first cleaning cotton (404), and a detection component is also arranged inside the cleaning block (402).

2. The anti-fogging and anti-interference endoscope according to claim 1, characterized in that: The top outlet of the pipeline (301) is provided with a bend toward the observation head (102), the bottom of the pipeline (301) is provided with an opening extending to the side wall of the jet pipe (300), and a connecting pipe (302) is provided inside the rotating ring (200).

3. The anti-fogging and anti-interference endoscope according to claim 2, characterized in that: The communicating pipe (302) is of arc-shaped design and matches with the bottom opening of the pipeline (301).

4. The anti-fogging and anti-interference endoscope according to claim 1, characterized in that: The first rotating ring (200) is provided with a pressure relief hole (208) that connects the outside with the air cavity (206), and the diameter of the pressure relief hole (208) is smaller than the diameter of the top outlet of the pipeline (301).

5. The anti-fogging and anti-interference endoscope according to claim 1, characterized in that: The spring constant of the spring three (414) is greater than the spring constant of the spring one (303).

6. The anti-fogging and anti-interference endoscope according to claim 1, characterized in that: The exhaust pipe (411) is of T-shaped design.

7. The anti-fogging and anti-interference endoscope according to claim 1, characterized in that: The detection component comprises a sealing groove (406) provided inside the cleaning block (402), a slider 1 (407) being sleeved at the bottom of the sealing groove (406), a torsion spring 1 (410) being arranged between the rotating block (401) and the cleaning block (402), a slider 2 (408) corresponding to the slider 1 (407) being sleeved at the top of the rotating block (401), a spring being arranged between the slider 1 (407) and the rotating block (401), a slot (409) cooperating with the slider 2 (408) being also arranged at the bottom of the cleaning block (402), a rectangular block (412) corresponding to the rectangular groove (403) being sleeved at the side wall of the inner tube (103), a spring 2 (413) being arranged between the rectangular block (412) and the inner tube (103), and chamfered corners being arranged on both the upper and lower sides of the rectangular block (412).

Images