Orthopedic surgery arthroscope with variable viewing angle

Abstract

The invention discloses an arthroscope with a variable viewing angle for orthopedic surgery, and relates to the technical field of medical instruments, the arthroscope comprises a control handle, the control handle is provided with an arthroscope body in a penetrating manner, the end part of the arthroscope body is provided with an auxiliary disc, the auxiliary disc is provided with an LED light source for auxiliary illumination, and the side of the LED light source is provided with a camera. According to the arthroscope with the variable visual angle for the orthopedic surgery, when a user needs to adjust the angle of a camera, the user only needs to rotate a rotary knob, so that a visual angle adjusting mechanism starts to operate, the internal pressure of a micro soft actuator is increased at the moment, and deformation and bending occur; the deformed and bent miniature soft actuator can synchronously drive the auxiliary disc to perform angle change, so that the camera is further adjusted, an operator can realize visual angle adjustment only by adjusting a knob, the operation of angle adjustment is simplified, the operation efficiency is improved, a wider visual field is provided for an operation, and the operation safety is improved. And the flexibility of surgical operation is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an arthroscope for orthopedic surgery with a variable viewing angle. Background Technology

[0002] In orthopedic surgery, arthroscopic surgery is a minimally invasive surgical technique. Through a small incision, an arthroscope and other surgical instruments are inserted. A slender arthroscope equipped with a camera and lighting equipment is inserted into the joint cavity. The camera transmits high-definition images of the inside of the joint to a monitor, allowing doctors to observe the joint cartilage, ligaments, synovium and other structures in real time, which helps in the diagnosis of the nature and extent of the lesion.

[0003] Prior art 1 (Chinese patent CN218960707U, published on 2023-05-05) discloses a portable arthroscope, comprising an arthroscope body, a camera, and a catheter. A light guide port is fixedly connected to the surface of the arthroscope body, a camera is fixedly connected to the side of the arthroscope body, a catheter is fixedly connected to the side of the arthroscope body, and a connecting rod is fixedly connected to the surface of the arthroscope body. A first sliding block is installed inside the arthroscope body. By providing a connecting block, pulling a push block causes the push block to move the first sliding block upwards within a first sliding groove. This causes a pulling rope to move a second sliding block and an insertion block upwards, disengaging the insertion block from the insertion groove, facilitating the removal of the connecting block from the inside of the arthroscope body. The connecting block is then inserted into the inside of the arthroscope body. Releasing the push block causes the spring force to compress the second sliding block downwards, allowing the insertion block to be inserted into the insertion groove, thus making the installation and removal of the catheter more convenient.

[0004] There is also prior art (Chinese patent CN215993926U, published on 2022-03-11) which describes an arthroscope with a measuring structure, comprising: an arthroscope handle, an arthroscope tube fixedly connected to the middle of the front end of the handle, a measuring sleeve movably sleeved on the rear end of the arthroscope tube, and a lens fixedly installed inside the front end of the arthroscope tube; measuring scale lines set on the outer surface of the measuring sleeve, and a fixing buckle fixedly installed at the rear end of the measuring sleeve; and a buckle groove formed on the rear wall of the arthroscope handle. In this invention, when the measuring sleeve slides outside the arthroscope tube to the front end of the tube, medical personnel can accurately measure the depth of the patient's joint by using the measuring scale lines on the surface of the measuring sleeve; when the measuring sleeve slides to the rear end of the tube, the fixing buckle can be engaged in the buckle groove to fix the measuring sleeve in place. Therefore, when not in use, the measuring sleeve can be fixed to the front wall of the arthroscope handle.

[0005] Traditional arthroscopic equipment typically has a fixed viewing angle, which can limit the surgeon's field of vision in some complex surgical procedures. To overcome this limitation, arthroscopes with viewing angles of 30° and 60° are available on the market, but they often cannot adjust the viewing angle in situ and require changing the lens during the operation to adjust the angle. This significantly increases the complexity and time required for the operation. The fixed viewing angle of existing arthroscopes cannot provide a sufficiently flexible field of vision during the operation, limiting the flexibility and precision of the surgical procedure.

[0006] Therefore, we propose an arthroscopy for orthopedic surgery with variable viewing angle to address the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide an arthroscope for orthopedic surgery with a variable viewing angle, in order to solve the problem mentioned in the background art that the viewing angle of existing arthroscopes on the market is fixed, which cannot provide a sufficiently flexible field of view during surgery, thus limiting the flexibility and precision of surgical operations.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an arthroscope for orthopedic surgery with variable viewing angle, comprising a control handle, a mirror body through which the control handle passes, an auxiliary disk at the end of the mirror body, an LED light source for auxiliary illumination on the auxiliary disk, and a camera on the side of the LED light source. A viewing angle adjustment mechanism is provided between the auxiliary disk and the control handle. The viewing angle adjustment mechanism adjusts the viewing angle of the camera by means of air pressure changes in its included micro soft actuator. A protective sleeve is nested and connected to the outer side of the LED light source and the camera. An anti-fog mechanism is provided at the corresponding position of the auxiliary disk and the protective sleeve. The anti-fog mechanism wipes the inner side of the protective sleeve by means of movement of its included abutment plate.

[0009] Preferably, the viewing angle adjustment mechanism includes a connecting shaft, a control handle is rotatably connected to the connecting shaft, a knob is fixedly connected to the outer side of the connecting shaft, and a turntable is fixedly connected to the inner side of the connecting shaft, wherein the diameter of the turntable is greater than the maximum diameter of the connecting shaft.

[0010] Preferably, a micro soft actuator with an internal hollow structure is provided through the auxiliary disk, and an air supply pipe is provided through one end of the micro soft actuator, which extends into the control handle. The micro soft actuator is a cylindrical structure made of elastomeric material and is filled with driving gas.

[0011] Preferably, a connecting plate is fixedly connected inside the control handle, and the connecting plate communicates with the air supply pipe. A positioning plate is also fixedly connected inside the control handle, and an air supply plate is provided between the positioning plate and the connecting plate, and the air supply plate is slidably disposed inside the control handle.

[0012] Preferably, a connecting rod is slidably connected to the positioning plate, one end of the connecting rod is fixedly connected to the air supply plate, and the other end of the connecting rod is fixedly connected to a movable plate. A rotating rod is hinged to the inner side of the movable plate, and the other end of the rotating rod is hinged to the inner edge of the turntable.

[0013] Preferably, the anti-fog mechanism includes a contact plate, and five sets of contact plates are slidably connected along the upper side of the control handle. The five sets of contact plates are evenly distributed, and the lower ends of the contact plates are inclined. The contact plates slide along the control handle by the contact action of the moving plate.

[0014] Preferably, a first electrical contact piece is fixedly connected to the upper end of the contact plate, and a second spring is fixedly connected between the lower surface of the first electrical contact piece and the outer side of the control handle, and two sets of the second springs are symmetrically distributed about the center point of the control handle.

[0015] Preferably, a second electrical contact piece is fixedly connected to the outer side of the handle, and the second electrical contact piece is located directly above the first electrical contact piece, and a transmission line is electrically connected to the outer side of the second electrical contact piece.

[0016] Preferably, a fixing rod is fixedly connected to the outer side of the auxiliary disk, and a fixing plate is fixedly connected to the upper end of the fixing rod. An electromagnetic block is fixedly connected to the lower surface of the fixing plate, and the electromagnetic block is electrically connected to the second electrical contact piece through a transmission line. A sliding plate is slidably connected to the outer side of the fixing rod, and a wiping plate is provided on the side of the sliding plate facing the protective sleeve. A fixing magnetic block is fixedly connected to the upper surface of the sliding plate. When energized, the electromagnetic block and the fixing magnetic block have the same magnetic poles. A first spring is fixedly connected between the upper surface of the sliding plate and the lower surface of the fixing plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are: (1) A knob is provided on the control handle. When the user needs to adjust the angle of the camera, he only needs to turn the knob to start the angle adjustment mechanism, which increases the internal pressure of the micro soft actuator, causing deformation and bending. After deformation and bending, the micro soft actuator can drive the auxiliary disk to change the angle, thereby further adjusting the camera. The operator only needs to adjust the knob to realize the angle adjustment, which simplifies the angle adjustment operation, improves the surgical efficiency, provides a wider field of view for the surgery, and increases the flexibility of the surgical operation.

[0018] (2) During the rotation of the knob, the turntable can be driven to rotate synchronously through the connecting shaft. The rotation of the turntable can make the air supply plate move inside the cavity formed by the positioning plate and the connecting plate, thereby compressing the gas. The compressed gas can be discharged outward through the air supply pipe, thereby realizing subsequent angle adjustment. Users can adjust the gas supply by turning the knob more or less, so that the swing angle of the camera meets their needs.

[0019] (3) When the moving plate moves under the action of the rotating rod, it will come into contact with the inclined edge of the contact plate. At this time, the contact plate will move upward along the control handle under the action of contact and squeezing. At this time, the user can observe the extended contact plate and judge the moving distance of the air supply plate so as to more intuitively perform air supply and pressurization treatment on the micro soft actuator as needed, and improve the accuracy of the deformation of the micro soft actuator.

[0020] (4) When the contact plate extends, the first electrical contact piece and the second electrical contact piece at its upper end are in contact. The electromagnetic block is energized and has magnetism at this time. Thus, the slide can be moved upward by fixing the magnetic block. At this time, the wiping plate moves. The wiping plate after moving can wipe the inside of the protective cover to avoid water mist on the inner wall of the protective cover from interfering with the camera's viewing angle. At the same time, the protective cover can further protect the camera, reduce the adhesion of liquid or tissue debris, and reduce the wiping frequency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the three-dimensional structure of the auxiliary disk of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 5 This is a three-dimensional cross-sectional view of the protective sleeve of the present invention; Figure 6 This is a three-dimensional cross-sectional view of the present invention; Figure 7 This is a three-dimensional cross-sectional view of the control handle of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the turntable of the present invention; Figure 9 This is a three-dimensional structural diagram of the first electrical contact piece of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the contact plate of the present invention.

[0022] In the diagram: 1. Control handle; 2. Mirror body; 3. Knob; 4. Camera; 5. LED light source; 6. Miniature soft actuator; 7. Auxiliary disk; 8. Transmission line; 9. Protective sleeve; 10. Fixing rod; 11. First spring; 12. Fixing plate; 13. Electromagnetic block; 14. Slide plate; 15. Wiping plate; 16. Fixing magnet; 17. Connecting shaft; 18. Turntable; 19. Positioning plate; 20. Connecting plate; 21. Air supply plate; 22. Connecting rod; 23. Rotating rod; 24. Moving plate; 25. Air supply pipe; 26. Contact plate; 27. First electrical contact piece; 28. Second electrical contact piece; 29. ​​Second spring. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: To quickly adjust the surgical field of view, a miniature soft actuator 6 is provided. Applying pressure to the miniature soft actuator 6 further adjusts the surgical field of view, such as... Figure 1 - Figure 3 The present invention provides the following technical solution: an arthroscope for orthopedic surgery with variable viewing angle, wherein a control handle 1 is provided with a through-hole arthroscope body 2, and an auxiliary disk 7 is provided at the end of the arthroscope body 2, and an LED light source 5 for auxiliary illumination is provided on the auxiliary disk 7. A camera 4 is provided on the side of the LED light source 5. A viewing angle adjustment mechanism is provided between the auxiliary disk 7 and the control handle 1. The viewing angle adjustment mechanism adjusts the viewing angle of the camera 4 by changing the air pressure of its included micro-soft actuator 6. The viewing angle adjustment mechanism includes a connecting shaft 17, which connects... A control handle 1 is rotatably connected to the connecting shaft 17, and a knob 3 is fixedly connected to the outer side of the connecting shaft 17. A turntable 18 is fixedly connected to the inner side of the connecting shaft 17. The diameter of the turntable 18 is larger than the maximum diameter of the connecting shaft 17. A micro soft actuator 6 with an internal hollow structure is provided through the auxiliary disk 7. An air supply pipe 25 is provided through one end of the micro soft actuator 6 and extends into the control handle 1. The micro soft actuator 6 is a cylindrical structure made of elastomeric material and is filled with driving gas.

[0025] The control handle 1 is equipped with a key control component, a knob 3. When the user needs to adjust the angle of the camera 4 in a surgical setting to meet the requirements of precise observation, simply turning the knob 3 will trigger the start of the viewing angle adjustment mechanism. At this time, the gas pre-stored inside the control handle 1 will be orderly delivered along the gas supply tube 25 to the interior of the hollow-structured micro-soft actuator 6 under the precise auxiliary mechanism constructed by the viewing angle adjustment mechanism. As the gas is continuously injected, the internal pressure of the micro-soft actuator 6 gradually increases. When the pressure reaches a certain level, its elastic material properties cause it to undergo controllable deformation and bending. After deformation and bending, the micro-soft actuator 6 can simultaneously drive the auxiliary disk 7 to make precise angle changes, thereby achieving fine adjustment of the camera 4, providing a wider and clearer field of view for surgical operations, and significantly improving the flexibility and precision of surgical operations.

[0026] Example 2: To improve operational flexibility, the pressure deformation of the micro soft actuator 6 can be achieved simply by rotating the knob 3. Figure 6 - Figure 8 and Figure 10 The present invention provides the following technical solution: an arthroscope for orthopedic surgery with variable viewing angle, wherein a connecting plate 20 is fixedly connected inside the control handle 1, and the connecting plate 20 is in communication with the air supply pipe 25; a positioning plate 19 is fixedly connected inside the control handle 1; an air supply plate 21 is provided between the positioning plate 19 and the connecting plate 20; the air supply plate 21 is slidably disposed inside the control handle 1; a connecting rod 22 is slidably connected to the positioning plate 19; one end of the connecting rod 22 is fixedly connected to the air supply plate 21; and a moving plate 24 is fixedly connected to the other end of the connecting rod 22; a rotating rod 23 is hinged to the inner side of the moving plate 24; and the other end of the rotating rod 23 is hinged to the inner edge of the turntable 18.

[0027] When the user applies rotational force to knob 3, it rotates synchronously with turntable 18 via connecting shaft 17. The rotating rod 23, hinged to the side of turntable 18, deflects precisely as turntable 18 rotates, driving the movable plate 24, hinged at the other end, to move synchronously. During this movement, the movable plate 24 closely cooperates with connecting rod 22, driving it to slide stably and precisely along a pre-set track inside positioning plate 19, ensuring accurate transmission. The sliding of connecting rod 22 further transmits power, driving the air supply plate 21, fixedly connected at its other end, to move within the sealed cavity formed by positioning plate 19 and connecting plate 20. The movement of air supply plate 21 changes the cavity volume, thus compressing the gas inside. Under the pressure difference, the compressed gas is orderly discharged outward through air supply pipe 25, ultimately driving the subsequent angle adjustment mechanism. The user can adjust the angle according to actual needs. The system adjusts the gas supply by precisely controlling the rotation angle of knob 3, thereby achieving the ideal swing angle of camera 4 and meeting the precise field of view requirements in different surgical scenarios. In the sophisticated mechanical linkage system, when the moving plate 24 moves under the drive of the rotating rod 23, it precisely contacts the inclined edge of the contact plate 26. After being pressed by the moving plate 24, the contact plate 26 moves smoothly and orderly upward along the preset guide structure inside the control handle 1. The user can directly observe the extended contact plate 26. By observing the extension length of the contact plate 26, the user can accurately judge the moving distance of the gas supply plate 21. This intuitive judgment method provides great convenience to the user, enabling the user to more accurately pressurize the micro soft actuator 6 according to actual needs, thereby ensuring the accuracy of the camera 4 angle adjustment and providing a strong guarantee for the smooth progress of the surgery.

[0028] Example 3: To reduce the frequency of wiping the camera 4, a protective cover 9 is provided, such as... Figure 3 - Figure 5 and Figure 9 , Figure 10The present invention provides the following technical solution: an arthroscope for orthopedic surgery with variable viewing angle, wherein a protective sleeve 9 is nested and connected to the outer side of the LED light source 5 and the camera 4, and an anti-fog mechanism is provided at the corresponding position of the auxiliary disk 7 and the protective sleeve 9. The anti-fog mechanism wipes the inner side of the protective sleeve 9 by moving the contact plate 26 included therein. The anti-fog mechanism includes a contact plate 26, five sets of contact plates 26 are slidably connected along the upper side of the control handle 1, and the five sets of contact plates 26 are evenly distributed. The lower ends of the contact plates 26 are inclined on both sides. At the same time, the contact plates 26 slide along the control handle 1 by the action of the moving plate 24. A first electrical contact piece 27 is fixedly connected to the upper end of the contact plate 26, and a second spring 29 is fixedly connected between the lower surface of the first electrical contact piece 27 and the outer side of the control handle 1. Two sets of control handles 1 are symmetrically distributed around the center point. A second electrical contact piece 28 is fixedly connected to the outer side of the control handle 1, and the second electrical contact piece 28 is located directly above the first electrical contact piece 27. A transmission line 8 is electrically connected to the outer side of the second electrical contact piece 28. A fixing rod 10 is fixedly connected to the outer side of the auxiliary disk 7. A fixing plate 12 is fixedly connected to the upper end of the fixing rod 10. An electromagnetic block 13 is fixedly connected to the lower surface of the fixing plate 12. The electromagnetic block 13 is electrically connected to the second electrical contact piece 28 through the transmission line 8. A sliding plate 14 is slidably connected to the outer side of the fixing rod 10. A wiping plate 15 is provided on the side of the sliding plate 14 facing the protective sleeve 9. A fixing magnetic block 16 is fixedly connected to the upper surface of the sliding plate 14. When energized, the electromagnetic block 13 and the fixing magnetic block 16 have the same magnetic poles. A first spring 11 is fixedly connected between the upper surface of the sliding plate 14 and the lower surface of the fixing plate 12.

[0029] When the user performs an angle change operation, the contact plate 26 extends upwards precisely and smoothly. During the extension process, the first electrical contact piece 27 and the second electrical contact piece 28, which are carefully set at its upper end, come into close contact, thereby triggering the circuit to conduct. The second electrical contact piece 28 quickly delivers stable power to the electromagnetic block 13 through the transmission line 8. The electromagnetic block 13 generates magnetism when energized. At this time, the fixed magnetic block 16, under the strong magnetic attraction of the electromagnetic block 13, drives the sliding plate 14 to move upwards along the fixed rod 10. The movement of the sliding plate 14 is closely linked with the wiping plate 15, synchronously driving the wiping plate 15 to make precise displacement. After moving, the wiping plate 15 can efficiently wipe the inside of the protective cover 9, effectively avoiding the formation of water mist on the inner wall of the protective cover 9 due to temperature differences and other factors, thereby ensuring that the camera 4 has a clear and interference-free viewing angle. At the same time, the protective cover 9 also provides reliable physical protection for the camera 4, which can significantly reduce the adhesion of liquid or tissue debris, thereby reducing the wiping frequency, extending the service life of the device, and improving the overall reliability and stability of use.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An arthroscope for orthopedic surgery with variable viewing angle, comprising a control handle (1), a scope body (2) extending through the control handle (1), an auxiliary disk (7) at the end of the scope body (2), an LED light source (5) for auxiliary illumination on the auxiliary disk (7), and a camera (4) on the side of the LED light source (5), characterized in that, An angle adjustment mechanism is provided between the auxiliary disk (7) and the control handle (1). The angle adjustment mechanism adjusts the angle of the camera (4) by changing the air pressure of the micro soft actuator (6) contained therein. A protective cover (9) is provided between the LED light source (5) and the outer side of the camera (4). An anti-fog mechanism is provided at the corresponding position of the auxiliary disk (7) and the protective cover (9). The anti-fog mechanism wipes the inner side of the protective cover (9) by moving the contact plate (26) contained therein.

2. The arthroscope for orthopedic surgery with variable viewing angle according to claim 1, characterized in that: The viewing angle adjustment mechanism includes a connecting shaft (17), which is rotatably connected to a control handle (1). A knob (3) is fixedly connected to the outer side of the connecting shaft (17), and a turntable (18) is fixedly connected to the inner side of the connecting shaft (17). The diameter of the turntable (18) is greater than the maximum diameter of the connecting shaft (17).

3. The arthroscope for orthopedic surgery with variable viewing angle according to claim 2, characterized in that: The auxiliary disk (7) is provided with a micro soft actuator (6) with a hollow internal structure, and one end of the micro soft actuator (6) is provided with an air supply pipe (25), which extends into the control handle (1). The micro soft actuator (6) is a cylindrical structure made of elastomeric material and is filled with driving gas.

4. The arthroscope for orthopedic surgery with variable viewing angle according to claim 3, characterized in that: The control handle (1) is fixedly connected to a connecting plate (20), and the connecting plate (20) is connected to the air supply pipe (25). The control handle (1) is fixedly connected to a positioning plate (19), and an air supply plate (21) is provided between the positioning plate (19) and the connecting plate (20). The air supply plate (21) is slidably disposed inside the control handle (1).

5. The arthroscope for orthopedic surgery with variable viewing angle according to claim 4, characterized in that: A connecting rod (22) is slidably connected to the positioning plate (19), and one end of the connecting rod (22) is fixedly connected to the air supply plate (21), and the other end of the connecting rod (22) is fixedly connected to a moving plate (24), and a rotating rod (23) is hinged to the inner side of the moving plate (24), while the other end of the rotating rod (23) is hinged to the inner edge of the turntable (18).

6. The arthroscope for orthopedic surgery with variable viewing angle according to claim 5, characterized in that: The anti-fog mechanism includes a contact plate (26). Five sets of contact plates (26) are slidably connected along the upper side of the control handle (1), and the five sets of contact plates (26) are evenly distributed. The lower ends of the contact plates (26) are inclined on both sides. The contact plates (26) slide along the control handle (1) through the contact action of the moving plate (24).

7. The arthroscope for orthopedic surgery with variable viewing angle according to claim 6, characterized in that: The upper end of the contact plate (26) is fixedly connected to a first electrical contact piece (27), and a second spring (29) is fixedly connected between the lower surface of the first electrical contact piece (27) and the outer side of the control handle (1). The second spring (29) is symmetrically distributed in two sets about the center point of the control handle (1).

8. The arthroscope for orthopedic surgery with variable viewing angle according to claim 7, characterized in that: The control handle (1) is fixedly connected to a second electrical contact piece (28), and the second electrical contact piece (28) is located directly above the first electrical contact piece (27). A transmission line (8) is electrically connected to the outside of the second electrical contact piece (28).

9. An arthroscope for orthopedic surgery with variable viewing angle according to claim 8, characterized in that: A fixed rod (10) is fixedly connected to the outer side of the auxiliary disk (7), and a fixed plate (12) is fixedly connected to the upper end of the fixed rod (10). An electromagnetic block (13) is fixedly connected to the lower surface of the fixed plate (12), and the electromagnetic block (13) is electrically connected to the second electrical contact piece (28) through the transmission line (8). A sliding plate (14) is slidably connected to the outer side of the fixed rod (10), and a wiping plate (15) is provided on the side of the sliding plate (14) facing the protective sleeve (9). A fixed magnetic block (16) is fixedly connected to the upper surface of the sliding plate (14). When energized, the electromagnetic block (13) and the fixed magnetic block (16) have the same magnetic poles. A first spring (11) is fixedly connected between the upper surface of the sliding plate (14) and the lower surface of the fixed plate (12).

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