Medical endoscope lens cleaning and antifogging device

Abstract

The invention relates to the technical field of medical endoscope lenses, and discloses a medical endoscope lens cleaning anti-fog device which comprises a medical endoscope lens, a guide structure, a lens cleaning structure, a driving structure, a liquid supply structure, a pushing structure, a reset structure, an air supply structure and a controller. The medical endoscope lens comprises a lens shell and a lens cover, the lens cover is assembled at the end position of the lens shell, a sinking groove is formed in the side face of the lens cover, a lens piece is installed in the sinking groove, a camera module arranged in the lens shell is right opposite to the lens piece, and a blocking piece and a waste liquid discharging pipeline are fixed in the sinking groove. According to the medical endoscope lens cleaning device, a lens can be comprehensively and deeply wiped, dirt such as bloodstain and tissue body fluid can be effectively scraped, the efficient lens cleaning effect is achieved, mist on the lens can be rapidly removed, it is ensured that the lens is kept clean and dry, and therefore the shooting definition of a medical endoscope lens is greatly improved, and the medical endoscope lens cleaning device is suitable for being popularized and applied. And a powerful guarantee is provided for precise operation of an operation.

Description

Technical Field

[0001] The invention relates to the technical field of medical laparoscope lenses, and in particular to a medical laparoscope lens cleaning and anti-fogging device. Background Art

[0002] Anti-fogging and decontamination of medical laparoscope lenses are important links to ensure a clear surgical field of view. Since the temperature inside the human body is usually higher than room temperature, when the lens is extended from a low-temperature environment into a high-temperature environment inside the body, the fog in the body will condense into small droplets on the lens surface, making the image blurred. In addition, ultrasonic knives and electrocoagulation instruments are required for cutting, hemostasis and other operations during the operation, which inevitably leads to micro-particle aerosol formed by blood, tissues and body fluids adhering to the lens surface, interfering with the surgical field and affecting the progress of the operation. Therefore, defogging and cleaning of medical laparoscope lenses are crucial to the smooth progress of the operation, especially for high-frequency medical laparoscope lenses such as laparoscopes and thoracoscopes.

[0003] At present, in actual clinical work, when the lens is blurred due to stains during surgery, the operation needs to be suspended and the lens needs to be withdrawn. The instrument nurse wipes the lens with sterile gauze dipped in iodine, re-enters the abdominal cavity, and searches for the surgical field again to continue the operation. After that, aerosol is easily formed due to the temperature difference between the body and the outside, and the lens needs to be withdrawn again and the operation needs to be restarted after wiping with hot water. This is repeated, which is easy to contaminate the abdominal cavity and cause the loss of the surgical field, seriously affecting the progress of the operation and endangering the patient's life. In the prior art, the defogging of medical laparoscope lenses is generally solved by heating the lens piece. Publication No. CN205514519U provides a self-cleaning laparoscope lens, including a guide rod, which is characterized in that: a light guide cavity is arranged in the guide rod, and a laminar flow ring is arranged at the front end of the guide rod. The laminar flow cap is provided with a group of trachea mounting grooves on the side wall of the guide rod, a laminar flow ring is provided at the front end of the laminar flow cap, a lens card slot is provided at the front end of the guide rod, a convex mirror is provided on the lens card slot, a guide key slot is provided at the bottom of the front end of the guide rod, and a guide key matched with the guide key slot is provided at the front end of the laminar flow cap. In the above scheme, the trachea mounting groove is used to install the trachea. When the medical laparoscope lens is inserted into the human body, the warm air in the trachea overflows from the opening of the guide rod through the laminar flow cap, and forms a laminar flow on the mirror surface after passing through the laminar flow ring, which can ensure that the mirror surface temperature is close to the patient's internal body temperature, avoid the formation of steam mist on the lens, and can also play a role in purging the human tissue adhered to the lens. However, the above scheme still has the following shortcomings when it is actually used:

[0004] Blowing as a temporary cleaning method can remove fog on the surface of medical laparoscope lenses to a certain extent and restore the clarity of vision. However, it has significant disadvantages. Specifically, blowing cannot effectively remove blood, tissue fluid and other types of stains attached to the lens. These stains will not only reduce the light transmittance of the lens, making the surgical field of view blurred, but also affect the doctor's accurate judgment and operation of the surgical site. Therefore, it is far from enough to rely solely on blowing to maintain the cleanliness of medical laparoscope lenses.

[0005] Therefore, it is necessary to design a medical laparoscope lens cleaning and anti-fogging device to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a medical laparoscope lens cleaning and anti-fogging device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A medical laparoscope lens cleaning and anti-fogging device comprises a medical laparoscope lens, a guide structure, a lens cleaning structure, a driving structure, a liquid supply structure, a pushing structure, a resetting structure, an air supply structure and a controller;

[0009] Wherein, the medical laparoscope lens comprises a lens housing and a lens cover, the lens cover is assembled at the end position of the lens housing, a sink groove is provided on the side of the lens cover, and a lens piece is installed in the sink groove, a camera module built into the lens housing is arranged opposite to the lens piece, a baffle is fixed inside the sink groove, the baffle and the inside of the sink groove together form a waste liquid recovery tank, a liquid suction tube connected to the waste liquid recovery tank is connected to the lens housing, the liquid suction tube is connected to the negative pressure aspirator conventionally equipped in the operating room, and is used to timely absorb and discharge the waste liquid flowing into the waste liquid recovery tank, an assembly groove is provided on the outer periphery of the lens housing, a gas heating unit is installed inside the assembly groove, a detachable cover plate is also buckled on the assembly groove, and an air inlet hose is connected to the air inlet end of the gas heating unit;

[0010] Wherein, the guide structure is arranged on the lens cover, and the guide structure is located in the sink groove;

[0011] Wherein, the lens cleaning structure is arranged on the lens cover, and the lens cleaning structure is arranged directly opposite to the lens piece;

[0012] Wherein, the driving structure, liquid supply structure, pushing structure, reset structure and air supply structure are all arranged inside the lens housing;

[0013] Wherein, the controller is electrically connected to the electronic device inside the lens housing.

[0014] As a preferred technical solution of the present invention, the guide structure includes a guide plate and a guide port, the guide plate is fixed on the side of the lens piece, the guide port is opened on the guide plate, the shape of the guide plate is adapted to the shape of the lens piece, and a guide block is slidably arranged in the guide port.

[0015] As a preferred technical solution of the present invention, the lens cleaning structure includes a first brush plate and a second brush plate, the first brush plate is provided with two slots, the second brush plate is in an inverted U-shaped structure, and the second brush plate is slidably inserted in the two slots, the top of the second brush plate extends to the outside of the two slots and is fixedly connected to the guide block, the groove walls of the two slots are provided with limiting grooves, two limiting blocks are fixed on the second brush plate, and the two limiting blocks are respectively slidably arranged in the two limiting grooves, a first brush strip is arranged on the side of the first brush plate, and two second brush strips are arranged on the side of the second brush plate, and the first brush strip is placed between the two second brush strips;

[0016] Two first chambers are provided inside the first brush plate, one of the first chambers is used for circulating liquid, and the other first chamber is used for circulating gas. A plurality of first through holes are provided on the side of the first brush plate, and the plurality of first through holes are divided into two rows of the same number along the height direction of the first brush plate, and the two rows of first through holes are respectively connected to the two first chambers;

[0017] Two second chambers are provided inside the second brush plate, one of which is used for circulating liquid, and the other is used for circulating gas. A plurality of second through holes are provided on the side of the second brush plate, and the plurality of second through holes are divided into two rows of the same number along the height direction of the second brush plate, and the two rows of second through holes are respectively connected to the two second chambers.

[0018] As a preferred technical solution of the present invention, the driving structure includes a micro motor, a rack and a rotating shaft, the micro motor is installed inside the lens housing, the rotating shaft is rotatably installed inside the lens housing, one end of the rotating shaft extends into the sink groove and is fixedly connected to the bottom of the first brush plate, a first gear is fixedly sleeved on the output shaft of the micro motor, and a number of teeth are missing on the first gear, a second gear is fixedly sleeved on one end of the rotating shaft located inside the lens housing, the rack is slidably set inside the lens housing through a sliding member, and the first gear and the second gear are both meshed with the rack.

[0019] As a preferred technical solution of the present invention, the sliding member includes two side plates, a sliding rod, a slider and a spring, the two side plates are fixed inside the lens housing, the sliding rod is fixed between the two side plates, the slider is slidably sleeved on the sliding rod, the slider is fixedly connected to the rack, and the spring is arranged between the slider and one of the side plates.

[0020] As a preferred technical solution of the present invention, the liquid supply structure includes a sealing cylinder, a liquid adding tube and a tube cap, the sealing cylinder is fixed inside the lens housing, a sliding plug is provided in the sealing cylinder for sealing and sliding, a connecting rod is fixed on the sliding plug, an end of the connecting rod away from the sliding plug extends to the outside of the sealing cylinder, the connecting rod passes through the sealing cylinder, and the connecting rod and the sealing cylinder are slidably connected, the liquid adding tube is provided on the outer peripheral surface of the sealing cylinder, and the liquid adding tube is connected to the inside of the sealing cylinder, an end of the liquid adding tube away from the sealing cylinder extends into the assembly groove, and the tube cap is provided at one end of the liquid adding tube located in the assembly groove;

[0021] The sealing cylinder is connected to two first hoses, wherein one end of one of the first hoses away from the sealing cylinder is connected to one of the first chambers, and the other end of the first hose away from the sealing cylinder is connected to one of the second chambers.

[0022] As a preferred technical solution of the present invention, the pushing structure includes a screw, a guide rod and a moving block. The screw is rotatably installed inside the lens housing, the guide rod is fixed inside the lens housing, the moving block is threadedly sleeved on the screw, and the moving block is slidably sleeved on the guide rod. The connecting rod is fixedly connected between one end located outside the sealing tube and the moving block. A third gear is provided at one end of the screw, and the third gear is connected to the end position of the screw through a one-way bearing, and the third gear is meshed with the second gear.

[0023] As a preferred technical solution of the present invention, the reset structure includes a transmission shaft, a shaft and two bevel gears, the transmission shaft is fixed to one end of the screw rod, the shaft rod is rotatably installed inside the lens housing, one end of the shaft rod extends into the assembly groove and is installed with a knob, one of the bevel gears is fixedly sleeved on the transmission shaft, and the other bevel gear is fixedly sleeved on the shaft rod, and the two bevel gears are meshed with each other.

[0024] As a preferred technical solution of the present invention, the air supply structure includes an air guide seat, an air push plate, a push rod, two mounting ports and two flow limiting structures, the air guide seat is fixed inside the lens housing, and the interior of the air guide seat is hollow, the air push plate is sealingly and slidably connected to the interior of the air guide seat, one end of the push rod is fixedly connected to the air push plate, the other end of the push rod extends to the outside of the air guide seat and is fixedly connected to the slider, the push rod passes through the air guide seat, and the push rod and the air guide seat are slidably connected, the two mounting ports are both opened on the side of the air guide seat, the two flow limiting structures are respectively arranged in the two mounting ports, two air pipes are arranged on the side of the air guide seat, and the two air pipes are respectively arranged opposite to the two mounting ports, the other end of one of the air pipes is connected to the air outlet end of the gas heating unit, and the other end of the other air pipe is provided with two branch pipes, one of the branch pipes is connected to the other first chamber, and the other branch pipe is connected to the other second chamber;

[0025] The current limiting structure includes a support ring, a fixed column, a sealing sheet and a flexible sealing ring, wherein the support ring is fixed in the installation opening, and a gap is provided between the support ring and the installation opening, the fixed column is fixed to the inner ring of the support ring, the sealing sheet is fixed to one end of the fixed column, and the flexible sealing ring is sleeved on the outer peripheral surface of the sealing sheet;

[0026] One of the sealing sheets is arranged outside the air guide seat, and the other sealing sheet is arranged inside the air guide seat, and the side surfaces of the two sealing sheets are both in contact with the air guide seat.

[0027] As a preferred technical solution of the present invention, there is a gap between the sealing sheet and the air guide seat, and the ring diameter of the flexible sealing ring is larger than the diameter of the installation opening.

[0028] The present invention has the following beneficial effects:

[0029] 1. The cleaning mechanism forms a cleaning cycle by driving the first brush plate to rotate forward and backward through a micro motor, which has the following advantages: first, the first brush plate and the second brush plate work together to effectively clean the lens; second, the second brush plate can flexibly extend and retract in two slots through the cooperation of the guide block and the guide port, thereby avoiding the motion interference with the rotation of the first brush plate and ensuring the smoothness of the cleaning action; third, the first brush bar and the two second brush bars are closely attached to the surface of the lens, which can wipe the lens comprehensively and deeply, effectively scrape off blood stains, tissue fluids and other dirt, and achieve an efficient lens cleaning effect;

[0030] 2. When the first brush plate and the second brush plate rotate forward for cleaning, the liquid supply structure works synchronously, so that the cleaning liquid can quickly wet the dirt on the lens piece, reducing the adhesion between the dirt and the lens piece, and with the forward rotation of the brush bar, the dirt is more easily brushed off by the brush bar. This synergistic effect significantly improves the cleaning effect, ensuring that the lens piece reaches the best cleaning state in a short time, providing doctors with a clear and unobstructed surgical field of view, thereby improving the accuracy and safety of the operation. The locking mechanism of the one-way bearing ensures that the screw rod is driven to spray the cleaning liquid only when the brush plate rotates forward, and no liquid is sprayed when it rotates in the reverse direction, preparing for the subsequent hot air injection action;

[0031] 3. A sink is provided on the side of the lens cover, and a baffle is fixed inside the sink. The baffle and the inside of the sink together form a waste liquid recovery tank. The waste liquid recovery tank is provided with a drainage tube connected to the negative pressure aspirator conventionally equipped in the operating room, which is used to timely absorb and discharge the waste liquid that flows into the waste liquid recovery tank after the brush plate is cleaned, so as to avoid contamination to the human body;

[0032] 4. The design realizes the preheating treatment of the gas entering the gas guide seat through the gas heating unit in the lens housing assembly groove, and intelligently controls the discharge of hot air during the rotation of the brush plate. This mechanism can not only use hot air to effectively eliminate the residual cleaning liquid on the lens when the brush plate rotates in the opposite direction, but also quickly remove the fog on the lens to ensure that the lens remains clean and dry, thereby greatly improving the shooting clarity of the medical laparoscope lens and providing a strong guarantee for the precise operation of the surgery;

[0033] 5. The first brush bar is cleverly arranged between the two second brush bars, and when the brush plate rotates, the top of the first brush bar is always interlaced between the two second brush bars, forming a mutually staggered and fully covered cleaning mode. This design ensures that no matter which state the first brush plate and the second brush plate rotate to, the lens can be effectively cleaned under the joint action of the first brush bar and the two second brush bars, which greatly improves the comprehensiveness and efficiency of cleaning and ensures the cleanliness of the lens surface;

[0034] 6. After the operation, the design allows the staff to drive a series of precise mechanical structures, including shafts, bevel gears, transmission shafts and screws, by simply turning the knob, thereby achieving automatic resetting of the slide plug. This operation is not only convenient and efficient, but also avoids the tediousness and possible errors of manual resetting. At the same time, cleaning liquid can be easily added to the sealing cylinder through the liquid filling tube, which is fully prepared for the subsequent use of the medical laparoscope lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of a medical laparoscope lens cleaning and anti-fogging device proposed by the present invention;

[0036] Figure 2 It is a schematic diagram of the exploded structure of the lens housing, the assembly slot and the cover plate;

[0037] Figure 3 for Figure 2 A magnified view of the structure at A;

[0038] Figure 4 It is a schematic diagram of the structure of the lens housing and the baffle;

[0039] Figure 5 A schematic diagram of the structure of the guide structure;

[0040] Figure 6 for Figure 5 A magnified view of the structure at B;

[0041] Figure 7 is a schematic cross-sectional view of a lens cleaning structure;

[0042] Figure 8 for Figure 7 A magnified view of the structure at C;

[0043] Fig. 9 It is a structural schematic diagram of the lens cleaning structure and the driving structure;

[0044] Fig.10 for Fig. 9 A magnified view of the structure at D;

[0045] Fig.11 It is a structural schematic diagram of the lens cleaning structure and the air supply structure;

[0046] Fig.12 for Fig.11 A magnified view of the structure at E;

[0047] Fig.13 is a structural schematic diagram of the air supply structure;

[0048] Fig.14 for Fig.13 A magnified view of the structure at F;

[0049] Fig.15 is a structural schematic diagram of the air supply structure;

[0050] Fig.16 for Fig.15 Enlarged view of the structure at G.

[0051] In the figure: 11, lens housing; 12, lens cover; 13, lens piece; 14, baffle; 15, gas heating unit; 16, air intake hose; 21, guide plate; 22, guide port; 23, guide block; 31, first brush plate; 32, slot; 33, second brush plate; 34, limit slot; 35, limit block; 36, first through hole; 37, first brush strip; 38, second through hole; 39, second brush strip; 41, micro motor; 42, first gear; 43, rack; 44, second gear; 4 5. Rotating shaft; 51. Sealing cylinder; 52. Sliding plug; 53. Connecting rod; 54. Liquid adding pipe; 55. Pipe cap; 61. Screw; 62. Guide rod; 63. Moving block; 64. Push block; 65. Third gear; 66. One-way bearing; 71. Transmission shaft; 72. Shaft; 73. Bevel gear; 81. Air guide seat; 82. Push plate; 83. Push rod; 84. Mounting port; 85. Support ring; 86. Fixed column; 87. Sealing sheet; 88. Flexible sealing ring; 89. Air pipe; 9. Controller. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0053] Reference Figure 1-16 A medical laparoscope lens cleaning and anti-fogging device comprises a medical laparoscope lens, a guide structure, a lens cleaning structure, a driving structure, a liquid supply structure, a pushing structure, a reset structure, an air supply structure and a controller. The medical laparoscope lens comprises a lens housing 11 and a lens cover 12. The lens cover 12 is assembled at the end of the lens housing 11. A sink groove is provided on the side of the lens cover 12, and a lens piece 13 (such as Figure 4As shown), the medical laparoscope lens is in the shape of an elongated strip as a whole, and the diameter at the widest point is not more than 12 mm. In addition, the lens housing 11 is in an umbrella-shaped structure as a whole, which can prevent the fat tissue fluid at the lens port of the lens housing 11 from flowing back and contaminating the lens. The built-in camera module of the lens housing 11 is arranged opposite to the lens piece 13, and a baffle 14 is fixed inside the sink. The baffle 14 and the inside of the sink form a waste liquid recovery tank together. The waste liquid generated during the lens cleaning process will fall into the waste liquid recovery tank. The lens housing is connected to a pipette connected to the waste liquid recovery tank, and the pipette is connected to the lens housing. The lens housing 11 is connected to the negative pressure suction device conventionally equipped in the operating room to timely absorb and discharge the waste liquid flowing into the waste liquid recovery tank. In actual operation, the staff can connect the suction tube to the negative pressure equipment conventionally configured in the operating room, and use the negative pressure generated by the negative pressure equipment to absorb the waste liquid, human tissue fluid and other dirt generated during the lens cleaning process through the suction tube. This design facilitates the timely collection of waste liquid generated during the operation to avoid contamination of the human body by the waste liquid. The outer periphery of the lens housing 11 is provided with an assembly groove, and a gas heating unit 15 (such as Figure 3 As shown), a detachable cover is also fastened on the assembly groove, an air inlet hose 16 is connected to the air inlet end of the gas heating unit 15, and the controller 9 is electrically connected to the electronic devices inside the lens housing 11;

[0054] The guide structure is arranged on the lens cover 12, and the guide structure is located in the sink groove, and the guide structure includes a guide plate 21 and a guide opening 22, the guide plate 21 is fixed to the side of the lens piece 13, the guide opening 22 is opened on the guide plate 21, the shape of the guide plate 21 is adapted to the shape of the lens piece 13, and a guide block 23 is slidably arranged in the guide opening 22;

[0055] The lens cleaning structure is arranged on the lens cover 12, and the lens cleaning structure is arranged opposite to the lens piece 13. The lens cleaning structure includes a first brush plate 31 and a second brush plate 33. The first brush plate 31 is provided with two slots 32. The second brush plate 33 is an inverted U-shaped structure, and the second brush plate 33 is slidably inserted in the two slots 32. The top of the second brush plate 33 extends to the outside of the two slots 32 and is fixedly connected to the guide block 23. The groove walls of the two slots 32 are provided with limiting grooves 34. The second brush plate 33 is fixed with two limiting blocks 35 (such as Figure 8 As shown), two limit blocks 35 are respectively slidably arranged in the two limit grooves 34, and a first brush strip 37 (as shown) is arranged on the side of the first brush plate 31. Figure 6As shown in the figure, two second brush strips 39 are arranged on the side of the second brush plate 33, the first brush strip 37 is placed between the two second brush strips 39, and the first brush strip 37 is arranged between the two second brush strips 39. During the rotation of the first brush plate 31 and the second brush plate 33, the top position of the first brush strip 37 always extends between the two second brush strips 39, that is, the first brush strip 37 and the two second brush strips 39 always have an overlapping part. This design enables the movement range of the first brush strip 37 and the two second brush strips 39 to cover the entire lens piece 13, thereby ensuring the cleaning effect of the first brush strip 37 and the two second brush strips 39 on the lens piece 13;

[0056] The first brush plate 31 has two first chambers formed inside, one of which is used for circulating liquid, and the other is used for circulating gas. The side of the first brush plate 31 has a plurality of first through holes 36 formed therein, and the plurality of first through holes 36 are divided into two rows of the same number along the height direction of the first brush plate 31, and the two rows of first through holes 36 are respectively connected to the two first chambers;

[0057] The second brush plate 33 has two second chambers formed inside, one of which is used for circulating liquid, and the other is used for circulating gas. The side of the second brush plate 33 has a plurality of second through holes 38 formed therein, and the plurality of second through holes 38 are divided into two rows of the same number along the height direction of the second brush plate 33, and the two rows of second through holes 38 are respectively connected to the two second chambers;

[0058] The driving structure, liquid supply structure, pushing structure, reset structure and air supply structure are all arranged inside the lens housing 11. The driving structure includes a micro motor 41, a rack 43 and a rotating shaft 45. The micro motor 41 is installed inside the lens housing 11. The rotating shaft 45 is rotatably installed inside the lens housing 11. One end of the rotating shaft 45 extends into the sink and is fixedly connected to the bottom of the first brush plate 31. A first gear 42 is fixedly sleeved on the output shaft of the micro motor 41, and a number of teeth are missing on the first gear 42. A second gear 44 is fixedly sleeved on one end of the rotating shaft 45 located inside the lens housing 11. The rack 43 is slidably arranged inside the lens housing 11 through a sliding member. The first gear 42 and the second gear 44 are both meshed with the rack 43. The sliding member includes two side plates, a sliding rod, a slider and a spring. The two side plates are fixed inside the lens housing 11. The sliding rod is fixed between the two side plates. The slider is slidably sleeved on the sliding rod. The slider and the rack 43 are fixedly connected. Then, a spring is arranged between the slider and one of the side plates. When the micro motor 41 is running, it can drive the first gear 42 to rotate. In the initial stage of the rotation of the first gear 42, the teeth on the first gear 42 mesh with the rack 43. At this time, the first gear 42 can drive the rack 43 to move, and the movement of the rack 43 can drive the second gear 44 to rotate, which makes the rotating shaft 45 connected to the second gear 44 rotate accordingly. When the rotating shaft 45 rotates, it can drive the first brush plate 31 to rotate. Further, when the teeth on the first gear 42 are separated from the rack 43, the first gear 42 no longer drives the rack 43 to move. At this time, the first brush plate 31 just rotates 180°. In addition, when the teeth of the first gear 42 are separated from the rack 43, the rack 43 will reset under the elastic force of the spring and drive the second gear 44 to rotate in the opposite direction. When the second gear 44 rotates in the opposite direction, the rotating shaft 45 will drive the first brush plate 31 to rotate in the opposite direction, so as to realize the automatic reset of the first brush plate 31.

[0059] The liquid supply structure includes a sealing cylinder 51, a liquid adding tube 54 and a tube cap 55. The sealing cylinder 51 is fixed inside the lens housing 11. A sliding plug 52 is provided in the sealing cylinder 51 for sealing and sliding. A connecting rod 53 is fixed on the sliding plug 52. One end of the connecting rod 53 away from the sliding plug 52 extends to the outside of the sealing cylinder 51. The connecting rod 53 passes through the sealing cylinder 51 and is slidably connected to the sealing cylinder 51. The liquid adding tube 54 is provided on the outer peripheral surface of the sealing cylinder 51 and is connected to the inside of the sealing cylinder 51. One end of the liquid adding tube 54 away from the sealing cylinder 51 extends into the assembly groove. The tube cap 55 is provided at one end of the liquid adding tube 54 located in the assembly groove.

[0060] Two first hoses are connected to the sealing tube 51, one end of one of the first hoses away from the sealing tube 51 is connected to one of the first chambers, and the other end of the first hose away from the sealing tube 51 is connected to one of the second chambers;

[0061] The pushing structure includes a screw rod 61, a guide rod 62 and a moving block 63. The screw rod 61 is rotatably mounted inside the lens housing 11. The guide rod 62 is fixed inside the lens housing 11. The moving block 63 is threadedly sleeved on the screw rod 61, and the moving block 63 is slidably sleeved on the guide rod 62. One end of the connecting rod 53 located outside the sealing tube 51 is fixedly connected to the moving block 63. A third gear 65 is provided at one end of the screw rod 61. The third gear 65 is connected to the end position of the screw rod 61 through a one-way bearing 66. The third gear 65 The screw rod 61 is meshed with the second gear 44. When the screw rod 61 rotates, under the guidance of the guide rod 62, the screw rod 61 can drive the moving block 63 to move. When the moving block 63 moves, it can push the connecting rod 53, so that the connecting rod 53 drives the sliding plug 52 to move. During the movement of the sliding plug 52, the cleaning liquid stored in the sealing tube 51 can be pushed into the corresponding first chamber and the second chamber through the two first hoses, so that the cleaning liquid is sprayed out through the corresponding first through hole 36 and the second through hole 38, and sprayed on the surface of the lens piece 13.

[0062] The reset structure includes a transmission shaft 71, a shaft rod 72 and two bevel gears 73. The transmission shaft 71 is fixed to one end of the screw rod 61, and the shaft rod 72 is rotatably mounted inside the lens housing 11. One end of the shaft rod 72 extends into the assembly groove and is installed with a knob, one of which is fixedly sleeved on the transmission shaft 71, and the other is fixedly sleeved on the shaft rod 72. The two bevel gears 73 mesh with each other. After the operation is completed, the staff can reset the slide plug 52 by turning the knob, and add cleaning liquid to the sealing cylinder 51 through the liquid adding tube 54 to prepare for the subsequent use of the medical laparoscope lens. Specifically, when the staff turns the knob, the shaft rod 72 can be driven to rotate. When the shaft rod 72 rotates, the transmission shaft 71 is driven to rotate through the two meshing bevel gears 73, so that the screw rod 61 rotates in the opposite direction. When the screw rod 61 rotates in the opposite direction, it will drive the push block 64 to move in the opposite direction. When the push rod 83 moves in the opposite direction, the slide plug 52 can be reset through the connecting rod 53;

[0063] The air supply structure includes an air guide seat 81, an air push plate 82, a push rod 83, two mounting ports 84 and two flow limiting structures. The air guide seat 81 is fixed inside the lens housing 11, and the air guide seat 81 is hollow inside. The air push plate 82 is sealingly and slidably connected inside the air guide seat 81. One end of the push rod 83 is fixedly connected to the air push plate 82, and the other end of the push rod 83 extends to the outside of the air guide seat 81 and is fixedly connected to the slider. The push rod 83 passes through the air guide seat 81, and the push rod 83 is slidably connected to the air guide seat 81. Two mounting ports 84 are both provided on the side of the air guide seat 81, two flow limiting structures are respectively provided in the two mounting ports 84, two air pipes 89 are provided on the side of the air guide seat 81, and the two air pipes 89 are respectively provided opposite to the two mounting ports 84, the other end of one of the air pipes 89 is connected to the air outlet end of the gas heating unit 15, and the other end of the other air pipe 89 is provided with two branch pipes, one of the branch pipes is connected to the other first chamber, and the other branch pipe is connected to the other second chamber;

[0064] The current limiting structure includes a support ring 85, a fixed column 86, a sealing sheet 87 and a flexible sealing ring 88. The support ring 85 is fixed in the mounting opening 84, and there is a gap between the support ring 85 and the mounting opening 84. The fixed column 86 is fixed to the inner ring of the support ring 85, the sealing sheet 87 is fixed to one end of the fixed column 86, and the flexible sealing ring 88 is sleeved on the outer peripheral surface of the sealing sheet 87.

[0065] One of the sealing sheets 87 is arranged outside the air guide seat 81, and the other sealing sheet 87 is arranged inside the air guide seat 81. The sides of the two sealing sheets 87 are both in contact with the air guide seat 81. There is a gap between the sealing sheet 87 and the air guide seat 81. The diameter of the flexible sealing ring 88 is larger than the diameter of the installation port 84. Before entering the air guide seat 81, the gas first passes through the gas heating unit 15, and the gas heating unit 15 heats the gas. The heated gas is stored in the air guide seat 81 and is heated in the first brush. When the first brush plate 31 and the second brush plate 33 rotate forward, the air pushing plate 82 performs an air extraction action, and at this time, the hot air will not be ejected through the corresponding first through holes 36 and the second through holes 38. When the first brush plate 31 and the second brush plate 33 rotate reversely, the air pushing plate 82 performs an air exhaust action, and at this time, the hot air will be ejected through the corresponding first through holes 36 and the second through holes 38. The hot air ejected from the first through holes 36 and the second through holes 38 can not only eliminate the cleaning liquid remaining on the lens piece 13, but also remove the fog on the lens piece 13.

[0066] The specific working principle of the present invention is as follows:

[0067] When the medical laparoscope lens cleaning and anti-fogging device proposed by the present invention is in use, in the initial state, the first brush plate 31 and the second brush plate 33 are both in a horizontal state, at this time, the first brush plate 31 and the second brush plate 33 are both arranged opposite to the blocking piece 14, and the first brush plate 31 and the second brush plate 33 are both located below the lens piece 13, that is, the first brush plate 31 and the second brush plate 33 do not block the lens piece 13, in this case, the camera module arranged inside the lens housing 11 can normally shoot pictures;

[0068] During the use of the medical laparoscope lens, when there is fog, blood stains, tissue fluids and other dirt on the surface of the lens piece 13, the staff can control the micro motor 41 to operate through the controller 9. When the micro motor 41 operates, it can drive the first gear 42 to rotate. In the initial stage of the rotation of the first gear 42, the teeth on the first gear 42 are meshed with the rack 43. At this time, the first gear 42 can drive the rack 43 to move, and the movement of the rack 43 can drive the second gear 44 to rotate, so that the rotating shaft 45 connected to the second gear 44 rotates accordingly. When the rotating shaft 45 rotates, it can drive the first brush plate 31 to rotate. Further, when the teeth on the first gear 42 are separated from the rack 43, the first gear 42 no longer drives the rack 43 to move. At this time, the first brush plate 31 rotates exactly 180°. In addition, when the teeth of the first gear 42 are separated from the rack 43, the rack 43 will reset under the elastic force of the spring and drive the second gear 44 to rotate in the opposite direction. When the second gear 44 rotates in the opposite direction, the rotating shaft 45 will drive the first brush plate 31 to rotate in the opposite direction, thereby realizing the automatic reset of the first brush plate 31.

[0069] Under the driving action of the micro motor 41, the forward rotation and reverse rotation of the first brush plate 31 together form a cleaning cycle. During the cleaning cycle, the first brush plate 31 and the second brush plate 33 jointly realize the cleaning work of the lens piece 13. Specifically, a guide block 23 is fixed to the top of the second brush plate 33. When the second brush plate 33 rotates following the first brush plate 31, the guide block 23 will move along the guide opening 22, that is, the guide plate 21 and the guide opening 22 guide the second brush plate 33. Under this guiding action, the second brush plate 33 will telescope in the two slots 32, that is, the second brush plate 33 will move relative to the first brush plate 31, and the second The movable characteristic of the brush plate 33 provides a guarantee for the rotation of the first brush plate 31, avoiding the situation of motion interference between the rotation of the first brush plate 31 and the guiding function of the guide structure. Furthermore, a first brush strip 37 is provided on the first brush plate 31, and two second brush strips 39 are provided on the second brush plate 33. The first brush strip 37 and the two second brush strips 39 are both in contact with the surface of the lens piece 13. During the rotation of the first brush plate 31 and the second brush plate 33, the first brush strip 37 and the two second brush strips 39 jointly wipe the lens piece 13, and scrape off dirt such as blood stains and tissue fluids attached to the surface of the lens piece 13, so as to clean the lens piece 13.

[0070] It is worth noting that the first brush strip 37 is arranged between the two second brush strips 39. During the rotation of the first brush plate 31 and the second brush plate 33, the top position of the first brush strip 37 always extends between the two second brush strips 39, that is, the first brush strip 37 and the two second brush strips 39 always have an overlapping portion. This design enables the movement range of the first brush strip 37 and the two second brush strips 39 to cover the entire lens sheet 13, thereby ensuring the cleaning effect of the first brush strip 37 and the two second brush strips 39 on the lens sheet 13.

[0071] For the liquid supply structure, the second gear 44 can also drive the third gear 65 meshing with it to rotate during the rotation process. During the forward rotation of the second gear 44, the first brush plate 31 and the second brush plate 33, the second gear 44 drives the third gear 65 to rotate forward. In this process, the rotation direction of the third gear 65 is the same as the locking direction of the one-way bearing 66. Therefore, the third gear 65 can drive the screw rod 61 to rotate through the one-way bearing 66. When the screw rod 61 rotates, under the guidance of the guide rod 62, the screw rod 61 can drive the moving block 63 to move. When the moving block 63 moves, it can push the connecting rod 53, so that the connecting rod 53 drives the sliding plug 52 to move. During the movement of the sliding plug 52, the cleaning liquid stored in the sealing tube 51 can be pushed into the corresponding first chamber and second chamber through the two first hoses. , so that the cleaning liquid is sprayed out through the corresponding first through hole 36 and the second through hole 38, and sprayed on the surface of the lens piece 13. In summary, during the positive rotation of the first brush plate 31 and the second brush plate 33, the liquid spraying action is performed synchronously. When the cleaning liquid is sprayed on the surface of the lens piece 13, the dirt on the surface of the lens piece 13 is more easily brushed off, so that the cleaning effect of the first brush strip 37 and the second brush strip 39 on the lens piece 13 can be ensured. On the contrary, during the reverse rotation of the second gear 44, the first brush plate 31 and the second brush plate 33, the third gear 65 rotates in the reverse direction. At this time, the rotation direction of the third gear 65 is opposite to the locking direction of the one-way bearing 66, that is, the third gear 65 cannot drive the screw rod 61 to rotate through the one-way bearing 66. Therefore, during the reverse rotation of the first brush plate 31 and the second brush plate 33, the liquid spraying action will not be performed;

[0072] For the air supply structure, during the positive rotation of the second gear 44, the rack 43 will drive the slider to move forward. When the second gear 44 moves in the reverse direction, the rack 43 and the slider are reset under the action of the spring. When the slider moves, the push plate 82 is driven to move through the push rod 83, so that the push plate 82 moves back and forth in the air guide seat 81 to drive the air supply structure to operate. Specifically, two mounting ports 84 are provided on the air supply structure, and limited flow structures are provided in the two mounting ports 84. The two limited flow structures include flexible sealing rings 88, one of which is a sealing sheet 87 arranged on the outside of the air guide seat 81, and the other is a sealing sheet 87 arranged on the inside of the air guide seat 81. The sides of the two sealing sheets 87 are both in contact with the air guide seat 81. When the push plate 82 moves in the reverse direction, the push plate 82 can squeeze the gas inside the air guide seat 81. At this time, the gas will squeeze the flexible sealing ring 88 located inside the air guide seat 81, so that the flexible sealing ring 88 The flexible sealing ring 88 presses the inner surface of the air guide seat 81. In this case, the flexible sealing ring 88 blocks the corresponding installation port 84, and the gas cannot flow out through the installation port 84. For the flexible sealing ring 88 arranged outside the air guide seat 81, the pressure of the gas will push the flexible sealing ring 88, causing the flexible sealing ring 88 to deform, so that the flexible sealing ring 88 is separated from the air guide seat 81. At this time, the gas can flow out of the air guide seat 81 through the installation port 84 directly opposite to the flexible sealing ring 88. Conversely, during the forward movement of the air push plate 82, the flexible sealing ring 88 arranged outside the air guide seat 81 restricts the gas from entering the air guide seat 81, while the flexible sealing ring 88 arranged inside the air guide seat 81 allows the gas to enter the air guide seat 81. In summary, under the unidirectional flow limiting action of the two flow limiting structures, the air push plate 82 performs a suction action when moving forward, and performs an exhaust action when moving reversely.

[0073] Furthermore, a gas heating unit 15 is installed in the assembly groove on the lens housing 11. The gas will first pass through the gas heating unit 15 before entering the gas guide seat 81, and the gas heating unit 15 will heat the gas. The heated gas is stored in the gas guide seat 81. When the first brush plate 31 and the second brush plate 33 rotate forward, the air pusher plate 82 performs an air extraction action. At this time, the hot gas will not be ejected through the corresponding first through hole 36 and the second through hole 38. When the first brush plate 31 and the second brush plate 33 rotate in the opposite direction, the air pusher plate 82 performs an exhaust action. At this time, the hot gas will be ejected through the corresponding first through hole 36 and the second through hole 38. The hot gas ejected from the first through hole 36 and the second through hole 38 can not only eliminate the cleaning liquid remaining on the lens piece 13, but also remove the fog on the lens piece 13, thereby further ensuring the cleaning effect of the device on the lens piece 13, and then ensuring the shooting clarity of the medical laparoscope lens proposed in the present invention. The specific structure and working principle of the gas heating unit 15 are prior art, and will not be described in detail here.

[0074] It is worth noting that, since the shape of the guide plate 21 is the same as that of the lens piece 13, during the rotation of the first brush plate 31 and the second brush plate 33, the brushing plane formed by the first brush plate 31 and the second brush plate 33 can completely cover the lens piece 13, and the first through holes 36 are evenly distributed on the first brush plate 31, and the second through holes 38 are evenly distributed on the second brush plate 33, so that the hot air and the cleaning liquid can be evenly and comprehensively contacted with the lens piece 13. This special design can ensure the cleaning effect of the first brush plate 31 and the second brush plate 33 on the lens piece 13;

[0075] After the operation is over, the staff can reset the plug 52 by turning the knob and add cleaning liquid to the sealing tube 51 through the liquid adding tube 54 to prepare for the subsequent use of the medical laparoscope lens. Specifically, when the staff turns the knob, the shaft 72 can be driven to rotate. When the shaft 72 rotates, the transmission shaft 71 is driven to rotate through two mutually meshing bevel gears 73, so that the screw rod 61 rotates in the opposite direction. When the screw rod 61 rotates in the opposite direction, it will drive the push block 64 to move in the opposite direction. When the push rod 83 moves in the opposite direction, it can drive the plug 52 to be reset through the connecting rod 53.

[0076] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A medical laparoscope lens cleaning and anti-fogging device, characterized in that: It comprises a medical laparoscope lens, a guide structure, a lens cleaning structure, a driving structure, a liquid supply structure, a pushing structure, a resetting structure, an air supply structure and a controller (9); The medical laparoscope lens comprises a lens housing (11) and a lens cover (12), wherein the lens cover (12) is mounted at the end of the lens housing (11), a groove is provided on the side of the lens cover (12), and a lens piece (13) is installed in the groove, a camera module built into the lens housing (11) is arranged opposite to the lens piece (13), a baffle (14) is fixed inside the groove, and the baffle (14) and the inside of the groove together form a waste liquid recovery tank, a liquid suction tube connected to the waste liquid recovery tank is connected to the lens housing (11), and the liquid suction tube is connected to a negative pressure suction device conventionally equipped in an operating room, and is used to timely suck and discharge waste liquid flowing into the waste liquid recovery tank, an assembly groove is provided on the outer periphery of the lens housing (11), a gas heating unit (15) is installed inside the assembly groove, and a detachable cover plate is also buckled on the assembly groove, and an air intake hose (16) is connected to the air intake end of the gas heating unit (15); Wherein, the guide structure is arranged on the lens cover (12), and the guide structure is located in the sink; Wherein, the lens cleaning structure is arranged on the lens cover (12), and the lens cleaning structure is arranged directly opposite to the lens sheet (13); The driving structure, the liquid supply structure, the pushing structure, the resetting structure and the air supply structure are all arranged inside the lens housing (11); Wherein, the controller (9) is electrically connected to the electronic components inside the lens housing (11).

2. The medical laparoscope lens cleaning and anti-fogging device according to claim 1, characterized in that: The guide structure comprises a guide plate (21) and a guide opening (22); the guide plate (21) is fixed on the side of the lens piece (13); the guide opening (22) is provided on the guide plate (21); the shape of the guide plate (21) is adapted to the shape of the lens piece (13); and a guide block (23) is slidably arranged in the guide opening (22).

3. The medical laparoscope lens cleaning and anti-fogging device according to claim 2, characterized in that: The lens cleaning structure comprises a first brush plate (31) and a second brush plate (33), wherein the first brush plate (31) is provided with two slots (32), the second brush plate (33) is in an inverted U-shaped structure, and the second brush plate (33) is slidably inserted in the two slots (32), the top of the second brush plate (33) extends to the outside of the two slots (32), and is fixedly connected to the guide block (23), the slot walls of the two slots (32) are provided with limiting slots (34), the second brush plate (33) is fixed with two limiting blocks (35), and the two limiting blocks (35) are respectively slidably arranged in the two limiting slots (34), the side surface of the first brush plate (31) is provided with a first brush strip (37), the side surface of the second brush plate (33) is provided with two second brush strips (39), and the first brush strip (37) is placed between the two second brush strips (39); Two first chambers are provided inside the first brush plate (31), one of the first chambers is used for circulating liquid, and the other first chamber is used for circulating gas. A plurality of first through holes (36) are provided on the side of the first brush plate (31), and the plurality of first through holes (36) are divided into two rows of the same number along the height direction of the first brush plate (31), and the two rows of first through holes (36) are respectively connected to the two first chambers; The second brush plate (33) has two second chambers therein, one of which is used for circulating liquid, and the other is used for circulating gas. The side of the second brush plate (33) has a plurality of second through holes (38), which are divided into two rows of the same number along the height direction of the second brush plate (33). The two rows of second through holes (38) are respectively connected to the two second chambers.

4. The medical laparoscope lens cleaning and anti-fogging device according to claim 3, characterized in that: The driving structure comprises a micro motor (41), a rack (43) and a rotating shaft (45); the micro motor (41) is mounted inside the lens housing (11); the rotating shaft (45) is rotatably mounted inside the lens housing (11); one end of the rotating shaft (45) extends into the sink groove and is fixedly connected to the bottom of the first brush plate (31); a first gear (42) is fixedly sleeved on the output shaft of the micro motor (41), and a plurality of teeth are missing on the first gear (42); a second gear (44) is fixedly sleeved on one end of the rotating shaft (45) located inside the lens housing (11); the rack (43) is slidably arranged inside the lens housing (11) via a sliding member; the first gear (42) and the second gear (44) are both meshed with the rack (43).

5. The medical laparoscope lens cleaning and anti-fogging device according to claim 4, characterized in that: The sliding member comprises two side plates, a sliding rod, a slider and a spring. The two side plates are fixed inside the lens housing (11). The sliding rod is fixed between the two side plates. The slider is slidably sleeved on the sliding rod. The slider is fixedly connected to the rack (43). The spring is arranged between the slider and one of the side plates.

6. The medical laparoscope lens cleaning and anti-fogging device according to claim 5, characterized in that: The liquid supply structure comprises a sealing cylinder (51), a liquid adding tube (54) and a tube cap (55); the sealing cylinder (51) is fixed inside the lens housing (11); a sliding plug (52) is sealingly and slidably arranged inside the sealing cylinder (51); a connecting rod (53) is fixed on the sliding plug (52); an end of the connecting rod (53) away from the sliding plug (52) extends to the outside of the sealing cylinder (51); the connecting rod (53) passes through the sealing cylinder (51), and the connecting rod (53) and the sealing cylinder (51) are slidably connected; the liquid adding tube (54) is arranged on the outer peripheral surface of the sealing cylinder (51), and the liquid adding tube (54) is connected to the inside of the sealing cylinder (51); an end of the liquid adding tube (54) away from the sealing cylinder (51) extends into the assembly groove; and the tube cap (55) is arranged at one end of the liquid adding tube (54) located in the assembly groove; The sealing cylinder (51) is connected to two first hoses, wherein one end of the first hose away from the sealing cylinder (51) is connected to one of the first chambers, and the other end of the first hose away from the sealing cylinder (51) is connected to one of the second chambers.

7. The medical laparoscope lens cleaning and anti-fogging device according to claim 6, characterized in that: The pushing structure comprises a screw rod (61), a guide rod (62) and a moving block (63); the screw rod (61) is rotatably mounted inside the lens housing (11); the guide rod (62) is fixed inside the lens housing (11); the moving block (63) is threadedly sleeved on the screw rod (61); and the moving block (63) is slidably sleeved on the guide rod (62); one end of the connecting rod (53) located outside the sealing cylinder (51) is fixedly connected to the moving block (63); a third gear (65) is provided at one end of the screw rod (61); the third gear (65) is connected to the end position of the screw rod (61) through a one-way bearing (66); and the third gear (65) and the second gear (44) are meshed with each other.

8. The medical laparoscope lens cleaning and anti-fogging device according to claim 7, characterized in that: The reset structure comprises a transmission shaft (71), a shaft (72) and two bevel gears (73); the transmission shaft (71) is fixed to one end of the screw rod (61); the shaft (72) is rotatably mounted inside the lens housing (11); one end of the shaft (72) extends into a mounting groove and is provided with a knob; one of the bevel gears (73) is fixedly sleeved on the transmission shaft (71); the other bevel gear (73) is fixedly sleeved on the shaft (72); and the two bevel gears (73) are meshed with each other.

9. The medical laparoscope lens cleaning and anti-fogging device according to claim 6, characterized in that: The air supply structure comprises an air guide seat (81), an air push plate (82), a push rod (83), two mounting ports (84) and two flow limiting structures. The air guide seat (81) is fixed inside the lens housing (11), and the air guide seat (81) is hollow inside. The air push plate (82) is sealingly and slidably connected inside the air guide seat (81). One end of the push rod (83) is fixedly connected to the air push plate (82), and the other end of the push rod (83) extends to the outside of the air guide seat (81) and is fixedly connected to the slider. The push rod (83) passes through the air guide seat (81), and the push rod (83) and the air guide seat (81) are connected to each other. The two mounting openings (84) are both provided on the side of the air guide seat (81), the two flow limiting structures are respectively arranged in the two mounting openings (84), the side of the air guide seat (81) is provided with two air pipes (89), the two air pipes (89) are respectively arranged opposite to the two mounting openings (84), the other end of one of the air pipes (89) is connected to the air outlet end of the gas heating unit (15), and the other end of the other air pipe (89) is provided with two branch pipes, one of the branch pipes is connected to the other first chamber, and the other branch pipe is connected to the other second chamber; The current limiting structure comprises a support ring (85), a fixing column (86), a sealing sheet (87) and a flexible sealing ring (88); the support ring (85) is fixed in the installation opening (84), and a gap is provided between the support ring (85) and the installation opening (84); the fixing column (86) is fixed to the inner ring of the support ring (85); the sealing sheet (87) is fixed to one end of the fixing column (86); and the flexible sealing ring (88) is sleeved on the outer peripheral surface of the sealing sheet (87); One of the sealing sheets (87) is arranged outside the air guide seat (81), and the other sealing sheet (87) is arranged inside the air guide seat (81), and the side surfaces of the two sealing sheets (87) are both in contact with the air guide seat (81).

10. The medical laparoscope lens cleaning and anti-fogging device according to claim 9, characterized in that: There is a gap between the sealing sheet (87) and the air guide seat (81), and the diameter of the flexible sealing ring (88) is larger than the diameter of the installation opening (84).

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