Laparoscope

Abstract

The utility model discloses a laparoscope which comprises a laparoscope tube and a lens, a cleaning scraper used for cleaning the lens surface is arranged on the end face of the first end of the laparoscope tube, one end of the cleaning scraper is connected with the laparoscope tube in a rotating mode, and a positioning block is arranged on the end face of the first end of the laparoscope tube. A positioning structure for positioning the other end of the cleaning scraper when the cleaning scraper is in a non-cleaning state is arranged between the positioning block and the cleaning scraper, a hot air pipe is connected to the mirror tube, and the positioning block is provided with an inner cavity communicated with the hot air pipe. Compared with the prior art, the structure is more reasonable and reliable, by additionally arranging the positioning block connected with the hot air pipe and other structures, the used cleaning scraper can be dried so as to avoid secondary pollution, meanwhile, when fog appears on the mirror surface, the mirror surface can be cleaned, and the mirror surface can be cleaned. The mist can be directly blown away by outputting hot air, the operation is simpler and more convenient, and the effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a laparoscope. Background Art

[0002] A laparoscope is an advanced medical device integrating mechanical, electrical, and optical technologies, and is widely used in various minimally invasive surgical operations such as gynecology, general surgery, urology, and hepatobiliary surgery. However, during the operation, the lens of the laparoscope is easily contaminated by body fluids such as blood, resulting in blurred images, thus affecting the operation effect and efficiency. For this reason, a related patent document (publication number: CN219538256U) discloses a laparoscope with a self-cleaning device, which includes a lens tube and a lens. The lens is arranged in the lens tube and corresponds to the end of the first end of the lens tube. The mirror surface of the lens is not lower than the end surface of the first end of the lens tube. A cleaning wiper for cleaning the mirror surface is arranged on the end surface of the first end of the lens tube. One end of the cleaning wiper is rotatably connected to the lens tube and is connected with a power mechanism for driving its rotation. When cleaning is required, the power mechanism is used to drive the cleaning wiper to rotate to clean the mirror surface of the lens.

[0003] However, the solution in the above document has the following defects: 1. When the cleaning wiper is in a non-cleaning state, there is no effective positioning of the other end of the cleaning wiper. Therefore, after long-term use, when the transmission structure of the power mechanism becomes loose, the other end of the cleaning wiper is likely to slip off; 2. After the cleaning wiper is used for cleaning, especially on the end surface in contact with the mirror surface, there is likely to be residual dirty blood. The existing solution lacks a structure for drying the used cleaning wiper, which is likely to cause residual dirty blood on the cleaning wiper, resulting in secondary pollution when it is used again; 3. Due to the temperature difference between inside and outside the body, during the operation, the mirror surface is also likely to have fog. When there is fog, if the cleaning wiper is also used for cleaning, it is time-consuming and laborious. In summary, there is room for improvement in the solution of the above document. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a laparoscope with a more reasonable and reliable structure. By adding structures such as a positioning block connected to a hot air pipe, the used cleaning wiper can be dried to avoid secondary pollution. At the same time, when there is fog on the mirror surface, the fog can be directly blown away by outputting hot air, which is more convenient to operate and has better effects.

[0005] To achieve the above object, the utility model provides a laparoscope, which comprises a lens tube and a lens. The lens is arranged inside the lens tube and corresponds to the end of the first end of the lens tube. The mirror surface of the lens is not lower than the end surface of the first end of the lens tube. A cleaning blade for cleaning the mirror surface is arranged on the end surface of the first end of the lens tube. One end of the cleaning blade is rotatably connected to the lens tube and is connected with a power mechanism for driving its rotation. A positioning block is arranged on the end surface of the first end of the lens tube. A positioning structure is arranged between the positioning block and the cleaning blade to position the other end of the cleaning blade when the cleaning blade is in a non-cleaning state. A hot air pipe is connected to the lens tube. The positioning block has an inner cavity communicating with the hot air pipe. A blowing hole communicating with its inner cavity and facing the mirror surface is also opened on the positioning block. A groove adapted to the shape of the cleaning blade is further arranged on the end surface of the first end of the lens tube. When the cleaning blade and the positioning block are positioned through the positioning structure, the cleaning blade is located above the groove. A valve for controlling the communication or disconnection between the groove and the hot air pipe is arranged between the groove and the hot air pipe. A button for controlling the opening or closing of the valve is arranged on the positioning block. When the cleaning blade and the positioning block are positioned through the positioning structure, the cleaning blade presses the button and opens the valve through the button. When the cleaning blade loses the positioning cooperation with the positioning block, the button loses the pressing force and automatically resets to close the valve.

[0006] The beneficial effects of the utility model are as follows: By adopting the above scheme, the utility model adds a positioning block and a positioning structure is arranged between the positioning block and the cleaning blade to position the other end of the cleaning blade when the cleaning blade is in a non-cleaning state, so the structure is more reasonable and reliable. At the same time, when the cleaning blade is in a non-cleaning state, the cleaning blade is located above the groove, and at this time, the cleaning blade and the positioning block are positioned through the positioning structure. The cleaning blade presses the button and opens the valve. At this time, hot air is input, and the hot air enters the groove, which can dry the cleaning blade to avoid secondary pollution. When the cleaning blade is performing the cleaning operation, the cleaning blade rotates and loses the positioning connection with the positioning block. At this time, the pressing force on the button is lost, and the button automatically resets and closes the valve, that is, the groove and the hot air pipe are not communicated at this time. In addition, when the mirror surface of the lens is fogged, hot air is input, and the hot air is blown out through the blowing hole on the positioning block, which can effectively disperse the fog on the mirror surface. In this way, the operation is more convenient and the effect is better.

[0007] The utility model can be further configured such that the bottom surface of the groove facing the cleaning blade is an arc-shaped structure with a middle convex and two concave sides, and the valve is in communication with the middle part of the groove through a connecting pipe. With this configuration, even if the blood stains remaining on the cleaning blade drip onto the groove, they will only flow to both sides of the bottom surface of the groove, effectively preventing the blood stains from flowing back into the valve. The middle part of the bottom surface of the groove is convex and connected to the valve through a connecting pipe, which also provides a better drying effect for the cleaning blade.

[0008] The utility model can also be further configured such that the positioning structure includes a first magnet and a second magnet that attract and cooperate with each other. The first magnet and the second magnet are respectively fixedly arranged on the positioning block and the cleaning blade. With this configuration, the structure is simple and the connection is reliable.

[0009] The utility model can also be further configured such that the positioning block is an L-shaped structure with a hollow inner cavity. When the cleaning blade is positioned with the positioning block through the positioning structure, the cleaning blade also forms a clamping fit with the L-shaped positioning block. One end of the L-shaped positioning block is in communication with the hot air pipe, and a plurality of blowing holes inclined towards the mirror surface are evenly distributed at the other end of the L-shaped positioning block. With this configuration, not only is the structure more reasonable, but it can also further connect and position the cleaning blade when it is in a non-cleaning state.

[0010] The utility model can also be further configured such that the cleaning blade is made of rubber material and is a semi-circular ring structure. When the cleaning blade is in a non-cleaning state, the cleaning blade does not intersect with the mirror surface. Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the utility model;

[0012] Figure 2 is Figure 1 an enlarged view of part A of

[0013] Figure 3 is a structural diagram when the cleaning blade is in a non-cleaning state;

[0014] Figure 4 is a structural diagram when the cleaning blade is cleaning. Detailed Embodiments

[0015] Such as Figure 1 、 2, Figures 3 and 4 show a laparoscope, which includes a lens tube 1 and a lens 2. The lens 2 is arranged inside the lens tube 1 and is located corresponding to the end of the first end of the lens tube 1. The mirror surface 3 of the lens 2 is not lower than the end surface of the first end of the lens tube 1. A cleaning wiper 4 for cleaning the mirror surface 3 is arranged on the end surface of the first end of the lens tube 1. The cleaning wiper 4 is preferably made of rubber material and is in a semi-circular ring structure. When the cleaning wiper 4 is in a non-cleaning state, the cleaning wiper 4 does not intersect with the mirror surface 3. One end of the cleaning wiper 4 is rotatably connected to the lens tube 1 and is connected with a power mechanism for driving its rotation. The power mechanism may specifically include a rotating shaft 11 arranged inside the side wall of the lens tube 1. The rotating shaft 11 and the power source can be linked through a transmission structure such as a gear set 12. A positioning block 13 is arranged on the end surface of the first end of the lens tube 1. A positioning structure for positioning the other end of the cleaning wiper 4 when the cleaning wiper 4 is in a non-cleaning state is arranged between the positioning block 13 and the cleaning wiper 4. The positioning structure includes a first magnet 41 and a second magnet 42 that are attracted and matched with each other. The first magnet 41 and the second magnet 42 are respectively fixedly arranged on the positioning block 13 and the cleaning wiper 4. With such a setting, the structure is simple and the connection is reliable. The above scheme is preferably adopted for the positioning structure. Of course, other clamping connection structures can also be used.

[0016] A hot air pipe 14 is connected to the lens tube 1. The positioning block 13 has an inner cavity 15 that communicates with the hot air pipe 14. An air blowing hole 16 that communicates with the inner cavity 15 and faces the mirror surface 3 is also opened on the positioning block 13. A groove 17 that is adapted to the shape of the cleaning wiper 4 is also arranged on the end surface of the first end of the lens tube 1. When the cleaning wiper 4 is positioned with the positioning block 13 through the positioning structure, the cleaning wiper 4 is located above the groove 17. A valve 19 for controlling the communication or disconnection between the groove 17 and the hot air pipe 14 is arranged between the groove 17 and the hot air pipe 14. A button 20 for controlling the opening or closing of the valve 19 is arranged on the positioning block 13. When the cleaning wiper 4 is positioned with the positioning block 13 through the positioning structure, the cleaning wiper 4 presses the button 20 and opens the valve 19 through the button 20; when the cleaning wiper 4 loses the positioning cooperation with the positioning block 13, the button 20 loses the pressing force and automatically resets to close the valve 19.

[0017] With the above solution, the utility model is more reasonable and reliable in structure by adding a positioning block 13 and providing a positioning structure between the positioning block 13 and the cleaning blade 4 to position the other end of the cleaning blade 4 when the cleaning blade 4 is in a non-cleaning state. At the same time, when the cleaning blade 4 is in a non-cleaning state, the cleaning blade 4 is located above the groove 17, and at this time, the cleaning blade 4 and the positioning block 13 are positioned through the positioning structure. The cleaning blade 4 presses the button 20, and the valve 19 is opened through the button 20. At this time, hot air is input, and the hot air enters the groove 17, which can dry the cleaning blade 4 to avoid secondary pollution. When the cleaning blade 4 is performing a cleaning operation, after the cleaning blade 4 rotates, it loses the positioning connection with the positioning block 13, and at this time, it also loses the pressing on the button 20. The button 20 automatically resets and closes the valve 19, that is, at this time, the groove 17 and the hot air pipe 14 are not connected. In addition, when the mirror surface 3 of the lens 2 is fogged, hot air is input, and the hot air is blown out through the air blowing holes 16 on the positioning block 13, which can effectively disperse the fog on the mirror surface 3. Such an operation is more convenient and the effect is better.

[0018] The bottom surface 18 of the groove 17 facing the cleaning blade 4 is an arc-shaped structure with a middle bulge and two concave sides. The valve 19 is connected to the middle of the groove 17 through a connecting pipe 21. With such a setting, even if the dirty blood remaining on the cleaning blade 4 drips onto the groove 17, it will only flow to both sides of the bottom surface 18 of the groove, effectively preventing the dirty blood from flowing back into the valve 19. And the middle of the bottom surface 18 of the groove bulges and is connected to the valve 19 through the connecting pipe 21. With such a setting, the drying effect on the cleaning blade 4 is also better.

[0019] The positioning block 13 is preferably an L-shaped structure and is provided with a hollow inner cavity 15. When the cleaning blade 4 and the positioning block 13 are positioned through the positioning structure, the cleaning blade 4 also forms a snap-fit with the L-shaped positioning block 13. One end of the L-shaped positioning block 13 is connected to the hot air pipe 14, and a plurality of air blowing holes 16 inclined towards the mirror surface 3 are evenly distributed at the other end of the L-shaped positioning block 13. With such a setting, it is not only more reasonable in structure but also can further connect and position the cleaning blade 4 when it is in a non-cleaning state.

Claims

1. A laparoscope, comprising a mirror tube and a lens, wherein the lens is arranged in the mirror tube and is located correspondingly at the first end of the mirror tube, the mirror surface of the lens is not lower than the first end surface of the mirror tube, a cleaning blade for cleaning the mirror surface is arranged on the first end surface of the mirror tube, one end of the cleaning blade is rotatably connected to the mirror tube, and is connected to a power mechanism for driving the cleaning blade to rotate, characterized in that: A positioning block is provided on the first end surface of the mirror tube, and a positioning structure is provided between the positioning block and the cleaning scraper blade to position the other end of the cleaning scraper blade when the cleaning scraper blade is in a non-cleaning state. The mirror tube is connected to a hot air pipe, and the positioning block has an inner cavity that is connected to the hot air pipe. The positioning block is also provided with a blowing hole that is connected to the inner cavity and faces the mirror surface. A groove that matches the shape of the cleaning scraper blade is also provided on the first end surface of the mirror tube, and when the cleaning scraper blade and the positioning block are positioned by the positioning structure, the cleaning scraper blade is located above the groove, and a valve for controlling the connection or disconnection between the groove and the hot air pipe is provided between the groove and the hot air pipe, and a button for controlling the opening or closing of the valve is provided on the positioning block, and when the cleaning scraper blade and the positioning block are positioned by the positioning structure, the cleaning scraper presses the button and opens the valve through the button; when the cleaning scraper blade and the positioning block lose their positioning cooperation, the button loses its pressing and automatically resets, and closes the valve.

2. A laparoscope according to claim 1, characterized in that: The bottom surface of the groove facing the cleaning scraper is an arc-shaped structure with a protrusion in the middle and concave sides, and the valve is connected with the middle of the groove through a connecting pipe.

3. A laparoscope according to claim 1, characterized in that: The positioning structure comprises a first magnet and a second magnet which are mutually attracted and matched, and the first magnet and the second magnet are respectively fixedly arranged on the positioning block and the cleaning blade.

4. A laparoscope according to claim 1, 2 or 3, characterized in that: The positioning block is an L-shaped structure and is provided with a hollow inner cavity. When the cleaning blade and the positioning block are positioned through the positioning structure, the cleaning blade also forms a snap-fit ​​fit with the L-shaped positioning block. One end of the L-shaped positioning block is connected to the hot air duct, and the other end of the L-shaped positioning block is evenly distributed with a number of blowing holes inclined toward the mirror surface.

5. A laparoscope according to claim 1, 2 or 3, characterized in that: The cleaning blade is made of rubber material and has a semicircular ring structure. When the cleaning blade is in a non-cleaning state, the cleaning blade does not intersect with the mirror surface.

Images