Operating mechanism facilitating angle adjustment of endoscope lens
By rotating the motor to drive the umbrella gear and the rotation assembly of the gear, combined with the micro switch and dial control, the problem of labor and instability of traditional endoscope lens adjustment is solved, and the lens angle is convenient and stable adjustment is achieved, which is suitable for the angle adjustment of the endoscope lens.
Patent Information
- Application Number
- CN202421415124.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The angle adjustment of traditional endoscopic lenses is laborious and unstable, especially for medical staff with smaller hands, which affects the surgical process.
The rotating motor is used to drive the umbrella gear and the rotation assembly of the gear, and the micro switch and the dial control of the rotation direction of the rotating wheel is controlled. The forward and reverse rotation of the rotating motor is controlled through the contact between the dial and the micro switch and the disengagement of the dial to achieve stable adjustment of the lens.
It improves the convenience and stability of lens angle adjustment, reduces the finger movement and shaking of medical staff, and ensures that the lens remains stable after adjustment, which is conducive to the smooth progress of the operation.
Smart Images
Figure CN223041505U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of endoscopes, and particularly relates to an operating mechanism for facilitating the angle adjustment of an endoscope lens. Background Technique
[0002] An endoscope is a tube equipped with a light. It can enter the stomach through the mouth or enter the body through other natural orifices. Using an endoscope, lesions that cannot be shown by X-rays can be seen, so it is very useful for doctors.
[0003] The lens of the endoscope is electrically connected to the display screen. Through the lens and the digital processing system, the environmental image in the body is transmitted and enlarged to the display screen. Therefore, the endoscope needs to use a power supply device.
[0004] When the endoscope is clinically used, the angle of the lens often needs to be adjusted. The lens is arranged at the front end of the endoscope. A handle and a rotating wheel are arranged at the rear end of the endoscope. The handle controls the rotation of the rotating wheel. The rotating wheel rotates in the shell at the rear end of the endoscope. The handle swings outside the shell. The handle is connected to the rotating wheel through a rotating shaft and drives the rotating wheel to rotate. The rotating wheel is connected to the lens through a steel wire and drives the lens to swing. Conventionally, two steel wires are wound around the rotating wheel. A groove is formed in the middle of the rotating wheel. An auxiliary frame is arranged in the groove. An adjusting roller is arranged in the auxiliary frame. The two ends and the outer peripheral wall of the adjusting roller are in interference fit with the inner wall of the auxiliary frame. Each steel wire corresponds to an adjusting roller. A through hole for the steel wire to pass through is formed in the adjusting roller. One end of the steel wire is fixed to the adjusting roller. The other end of the steel wire passes through the through hole and is wound around the rotating wheel and extends to the lens at the front end of the endoscope.
[0005] When the lens of the endoscope needs to rotate forward, the handle is swung forward to drive the rotating wheel to rotate forward, so that one steel wire elongates and the other steel wire contracts to control the forward rotation of the front lens.
[0006] When the lens of the endoscope needs to rotate backward, the handle is swung backward to drive the rotating wheel to rotate backward, so that one steel wire contracts and the other steel wire elongates to control the backward rotation of the front lens.
[0007] Regarding the above related technology, the inventor believes that the hand shapes of medical staff vary from person to person. When turning the handle to control the lens rotation, if the hand shape of the medical staff is small, it will be more laborious to turn the handle.
[0008] Moreover, when observing after the angle adjustment of the endoscope lens is completed, the medical staff needs to keep the lens stable. At this time, if the fingers of the medical staff shake or vibrate, it will affect the stability of the endoscope lens and is not conducive to the progress of the operation. Content of the Utility Model
[0009] In order to improve the operability and convenience during the adjustment of the endoscope lens angle and enhance the lens stability after the endoscope lens angle adjustment is completed, the present application provides an operating mechanism facilitating the adjustment of the endoscope lens angle.
[0010] The operating mechanism facilitating the adjustment of the endoscope lens angle provided by the present application adopts the following technical solutions:
[0011] An operating mechanism facilitating the adjustment of the endoscope lens angle includes a rotating assembly and a control assembly. The rotating assembly is used to drive the rotating wheel to rotate. The rotating assembly includes a rotating motor, a bevel gear, and a mating gear. The rotating motor is arranged inside the endoscope housing. The bevel gear is coaxially connected to the output shaft of the rotating motor. The mating gear is coaxially connected to the rotating wheel. The axis of the mating gear is perpendicular to the axis of the bevel gear, and the mating gear meshes with the bevel gear.
[0012] The control assembly is used to control the rotation direction of the rotating wheel.
[0013] Preferably, the control assembly includes a dial, a first microswitch, and a second microswitch. The dial is slidably arranged inside the endoscope housing. The first microswitch and the second microswitch are respectively arranged at both ends in the length direction of the dial. The rotating motor is electrically connected to both the first microswitch and the second microswitch.
[0014] The first microswitch is provided with a first power-on contact, and the second microswitch is provided with a second power-on contact. The dial can slide to contact or disengage from the first power-on contact, and the dial can also slide to contact or disengage from the second power-on contact.
[0015] When the dial slides to contact the first power-on contact, the rotating motor rotates forward. When the dial slides to disengage from the first power-on contact, the rotating motor stops rotating.
[0016] When the dial slides to contact the second power-on contact, the rotating motor rotates in reverse. When the dial slides to disengage from the second power-on contact, the rotating motor stops rotating.
[0017] Preferably, the dial is in a "Z" shape, so that first protrusions and second protrusions are respectively formed on both sides in the width direction of the dial. The first protrusion is located at one end of the dial close to the first power-on contact, and the second protrusion is located at one end of the dial close to the second power-on contact.
[0018] Preferably, one end in the length direction of the dial is connected to the inner wall of the endoscope housing through a reset rod, and the reset rod is an elastic plastic part.
[0019] Preferably, an operating rod is provided on the shifting block. One end of the operating rod away from the shifting block penetrates outside the endoscope housing. A relief hole for the movement of the operating rod is formed on the endoscope housing. When the shifting block slides to contact the first power-on contact, the operating rod abuts against the inner wall of one end of the relief hole. When the shifting block slides to contact the second power-on contact, the operating rod abuts against the inner wall of the other end of the relief hole.
[0020] Preferably, an operating button is connected to the end of the operating rod that penetrates outside the endoscope housing. The surface of the operating button away from the operating rod is an arc surface, and the middle of the arc surface protrudes towards the direction close to the operating rod.
[0021] Preferably, a plurality of friction strips are provided on the surface of the operating button away from the operating rod.
[0022] Preferably, the plurality of friction strips are equidistantly arranged along the length direction of the operating button.
[0023] In summary, the present application includes the following beneficial technical effects:
[0024] When it is necessary to control the forward rotation of the lens of the endoscope, the operating button is toggled to make the first protrusion of the shifting block contact the first power-on contact of the first micro switch, so that the rotation motor rotates forward, driving the bevel gear to rotate forward. The bevel gear drives the runner to rotate forward through the mating gear. The runner drives one side of the steel wire to tighten, and the lens at the front end of the endoscope turns towards one side; after releasing the operating button, the reset rod drives the shifting block to reset, the first protrusion disengages from the first power-on contact, and the rotation motor stops rotating, and the lens is locked;
[0025] When it is necessary to control the reverse rotation of the lens of the endoscope, the operating button is toggled to make the second protrusion of the shifting block contact the second power-on contact of the second micro switch, so that the rotation motor rotates in reverse, driving the bevel gear to rotate in reverse. The bevel gear drives the runner to rotate in reverse through the mating gear. The runner drives the other side of the steel wire to tighten, and the lens at the front end of the endoscope turns towards the other side; after releasing the operating button, the reset rod drives the shifting block to reset, the second protrusion disengages from the second power-on contact, and the rotation motor stops rotating, and the lens is locked;
[0026] For medical staff with smaller hand sizes, when performing the operation of adjusting the lens angle, the stroke of the finger movement required for the above operation is shorter and the operation is convenient. When the shifting block slides to contact the first power-on contact or the second power-on contact, the operating rod abuts against the inner wall of the relief hole, so that the medical staff has a support point when applying force, and the fingers of the medical staff are not prone to shaking or trembling. Moreover, after the medical staff releases the operating button, the rotation motor stops rotating, so that the lens is locked and remains stable, which is beneficial to the progress of the operation. Description of the Drawings
[0027] Figure 1It is a schematic diagram of the overall structure of an operating mechanism for facilitating the adjustment of the endoscope lens angle in an embodiment of the present application.
[0028] Figure 2 It is a schematic cross-sectional structure diagram for showing the rotating assembly in an embodiment of the present application.
[0029] Figure 3 In an embodiment of the present application, after hiding the housing, it is a schematic diagram for showing the structures of the rotating assembly and the control assembly.
[0030] Figure 4 In an embodiment of the present application, it is used to show Figure 3 The enlarged structure diagram of part A in
[0031] Figure 5 It is a schematic diagram for showing the connection relationship between the reset rod and the dial block in an embodiment of the present application.
[0032] Explanation of reference numerals: 1. Housing; 11. Relief hole; 2. Runner; 3. Rotating assembly; 31. Rotating motor; 32. Bevel gear; 33. Matching gear; 34. Positioning screw; 35. Limiting ring; 4. Control assembly; 41. Dial block; 411. First protrusion; 412. Second protrusion; 42. First microswitch; 421. First energized contact; 43. Second microswitch; 431. Second energized contact; 5. Reset rod; 6. Operating rod; 7. Operating button; 71. Friction strip. Detailed implementation manners
[0033] The following further describes the present application in detail with reference to the Figures 1-5 accompanying drawings.
[0034] An embodiment of the present application discloses an operating mechanism for facilitating the adjustment of the endoscope lens angle.
[0035] Referring to Figures 1-5 , the operating mechanism for facilitating the adjustment of the endoscope lens angle includes a rotating assembly 3 and a control assembly 4.
[0036] The rotating assembly 3 is used to drive the rotating wheel 2 to rotate. The rotating assembly 3 includes a rotating motor 31, a bevel gear 32, and a mating gear 33. The rotating motor 31 is disposed within the endoscope housing 1. The bevel gear 32 is coaxially and fixedly connected to the output shaft of the rotating motor 31. The mating gear 33 is coaxially and fixedly connected to the rotating wheel 2. The rotating wheel 2 and the mating gear 33 are rotationally connected within the endoscope housing 1 by a positioning screw 34. The end of the positioning screw 34 is threadedly connected to the endoscope housing 1. The portion of the positioning screw 34 in contact with the rotating wheel 2 is smoothly arranged so that the rotating wheel 2 is rotationally connected to the positioning screw 34. The nut of the positioning screw 34 abuts against the end face of the rotating wheel 2. A limiting ring 35 is provided on the inner wall of the endoscope housing 1. The limiting ring 35 abuts against the end face of the rotating wheel 2, thereby restricting the axial displacement of the rotating wheel 2 and the mating gear 33. The axis of the mating gear 33 is perpendicular to the axis of the bevel gear 32, and the mating gear 33 meshes with the bevel gear 32.
[0037] The control assembly 4 is used to control the rotation direction of the rotating wheel 2. The control assembly 4 includes a dial block 41, a first microswitch 42, and a second microswitch 43. The dial block 41 is slidably disposed within the endoscope housing 1. The first microswitch 42 and the second microswitch 43 are respectively disposed at both ends in the length direction of the dial block 41. In this embodiment, the first microswitch 42 is located above the second microswitch 43. The rotating motor 31 is electrically connected to both the first microswitch 42 and the second microswitch 43.
[0038] A first energizing contact 421 is provided on the first microswitch 42, and a second energizing contact 431 is provided on the second microswitch 43. The dial block 41 can slide into contact with or out of contact with the first energizing contact 421, and the dial block 41 can also slide into contact with or out of contact with the second energizing contact 431.
[0039] When the dial block 41 slides into contact with the first energizing contact 421, the rotating motor 31 rotates forward. When the dial block 41 slides out of contact with the first energizing contact 421, the rotating motor 31 stops rotating.
[0040] When the dial block 41 slides into contact with the second energizing contact 431, the rotating motor 31 rotates in reverse. When the dial block 41 slides out of contact with the second energizing contact 431, the rotating motor 31 stops rotating.
[0041] When it is necessary to control the forward rotation of the endoscope lens, the medical staff makes the dial block 41 contact the first energizing contact 421 of the first microswitch 42, causing the rotating motor 31 to rotate forward, driving the bevel gear 32 to rotate forward. The bevel gear 32 drives the rotating wheel 2 to rotate forward through the mating gear 33. The rotating wheel 2 drives the wire on one side to tighten, and the lens at the front end of the endoscope turns towards one side, that is, the lens at the front end of the endoscope rotates forward. After releasing the operation button 7, the reset rod 5 brings the dial block 41 back to its original position. The dial block 41 disengages from the first energizing contact 421, and the rotating motor 31 stops rotating, locking the lens.
[0042] When it is necessary to control the reverse rotation of the endoscope lens, the medical staff makes the dial block 41 contact the second energized contact 431 of the second microswitch 43, causing the rotation motor 31 to rotate in reverse, driving the bevel gear 32 to rotate in reverse. The bevel gear 32 drives the runner 2 to rotate in reverse through the mating gear 33. The runner 2 drives the wire on the other side to tighten, and the lens at the front end of the endoscope turns towards the other side, that is, the lens at the front end of the endoscope rotates in reverse. After releasing the operation button 7, the reset rod 5 drives the dial block 41 to reset, the dial block 41 disengages from the second energized contact 431, and the rotation motor 31 stops rotating, locking the lens.
[0043] For medical staff with smaller hand sizes, during the operation of adjusting the lens angle, the stroke of the finger movement required for the above operation is shorter and the operation is more convenient. After the medical staff releases the operation button 7, the rotation motor 31 stops rotating, locking the lens to maintain stability, which is beneficial to the progress of the operation.
[0044] The dial block 41 is in a "Z" shape, and on both sides in the width direction of the dial block 41, a first protrusion 411 and a second protrusion 412 are respectively formed. The first protrusion 411 is located at one end of the dial block 41 close to the first energized contact 421, and the second protrusion 412 is located at one end of the dial block 41 close to the second energized contact 431. The settings of the first protrusion 411 and the second protrusion 412 further shorten the stroke required for the movement of the dial block 41, and further improve the operability and convenience during the adjustment of the endoscope lens angle.
[0045] One end in the length direction of the dial block 41 is connected to the inner wall of the endoscope housing 1 through a reset rod 5. The reset rod 5 is a plastic part with elasticity. The reset rod 5 can deform as the dial block 41 slides, and the reset rod 5 can also drive the dial block 41 to reset.
[0046] An operating rod 6 is provided on the dial block 41. One end of the operating rod 6 far from the dial block 41 passes through the outside of the endoscope housing 1. A relief hole 11 for the movement of the operating rod 6 is opened on the endoscope housing 1. When the dial block 41 slides to contact the first energized contact 421, the operating rod 6 abuts against the inner wall at one end of the relief hole 11. When the dial block 41 slides to contact the second energized contact 431, the operating rod 6 abuts against the inner wall at the other end of the relief hole 11, providing a support point for the medical staff when applying force, and the fingers of the medical staff are not prone to shaking or jittering.
[0047] One end of the operating rod 6 passing through the outside of the endoscope housing 1 is connected with an operation button 7. The surface of the operation button 7 far from the operating rod 6 is an arc surface, and the middle of the arc surface protrudes towards the direction close to the operating rod 6 to fit the fingers of the medical staff during operation.
[0048] On one side of the operation button 7 away from the operating lever 6, there are multiple friction strips 71 arranged at equal intervals along the length direction of the operation button 7, which increases the friction force between the operation button 7 and the fingers of medical staff and prevents the fingers of medical staff from slipping off the operation button 7.
[0049] The implementation principle of an operation mechanism for facilitating the adjustment of the endoscope lens angle in the embodiment of the present application is as follows:
[0050] When it is necessary to control the forward rotation of the endoscope lens, the operation button 7 is toggled so that the first protrusion 411 of the slider 41 contacts the first energized contact 421 of the first microswitch 42, causing the rotation motor 31 to rotate forward, driving the bevel gear 32 to rotate forward. The bevel gear 32 drives the runner 2 to rotate forward through the mating gear 33. The runner 2 drives one side of the steel wire to tighten, and the lens at the front end of the endoscope turns towards one side, that is, the endoscope lens rotates forward; after the operation button 7 is released, the reset rod 5 drives the slider 41 to reset, the first protrusion 411 disengages from the first energized contact 421, and the rotation motor 31 stops rotating, locking the lens.
[0051] When it is necessary to control the reverse rotation of the endoscope lens, the operation button 7 is toggled so that the second protrusion 412 of the slider 41 contacts the second energized contact 431 of the second microswitch 43, causing the rotation motor 31 to rotate in reverse, driving the bevel gear 32 to rotate in reverse. The bevel gear 32 drives the runner 2 to rotate in reverse through the mating gear 33. The runner 2 drives the other side of the steel wire to tighten, and the lens at the front end of the endoscope turns towards the other side, that is, the endoscope lens rotates in reverse; after the operation button 7 is released, the reset rod 5 drives the slider 41 to reset, the second protrusion 412 disengages from the second energized contact 431, and the rotation motor 31 stops rotating, locking the lens.
[0052] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. An operating mechanism for facilitating endoscope lens angle adjustment, characterized in that: The invention comprises a rotating assembly (3) and a control assembly (4), wherein the rotating assembly (3) is used to drive a rotating wheel (2) to rotate, and the rotating assembly (3) comprises a rotating motor (31), a bevel gear (32), and a matching gear (33), wherein the rotating motor (31) is arranged in an endoscope housing (1), the bevel gear (32) is coaxially connected to the output shaft of the rotating motor (31), and the matching gear (33) is coaxially connected to the rotating wheel (2), the axis of the matching gear (33) and the axis of the bevel gear (32) are perpendicular to each other, and the matching gear (33) is meshed with the bevel gear (32); The control component (4) is used to control the rotation direction of the rotating wheel (2).
2. The operating mechanism for facilitating endoscope lens angle adjustment according to claim 1, characterized in that: The control assembly (4) comprises a shift block (41), a first micro switch (42), and a second micro switch (43); the shift block (41) is slidably disposed in the endoscope housing (1); the first micro switch (42) and the second micro switch (43) are respectively disposed at two ends of the shift block (41) in a length direction; the rotary motor (31) is electrically connected to the first micro switch (42) and the second micro switch (43); The first micro switch (42) is provided with a first energized contact (421), the second micro switch (43) is provided with a second energized contact (431), the shift block (41) can slide to contact with or out of contact with the first energized contact (421), and the shift block (41) can also slide to contact with or out of contact with the second energized contact (431); When the shift block (41) slides to contact the first energized contact (421), the rotating motor (31) rotates forward; when the shift block (41) slides to disengage from the first energized contact (421), the rotating motor (31) stops rotating; When the shift block (41) slides to contact the second energized contact (431), the rotating motor (31) reverses, and when the shift block (41) slides to disengage from the second energized contact (431), the rotating motor (31) stops rotating.
3. The operating mechanism for facilitating endoscope lens angle adjustment according to claim 2, characterized in that: The shift block (41) is in a "Z" shape, so that a first protrusion (411) and a second protrusion (412) are respectively formed on both sides of the shift block (41) in a width direction, the first protrusion (411) is located at one end of the shift block (41) close to the first power contact (421), and the second protrusion (412) is located at one end of the shift block (41) close to the second power contact (431).
4. The operating mechanism for facilitating endoscope lens angle adjustment according to claim 2, characterized in that: One end of the shift block (41) in the length direction is connected to the inner wall of the endoscope housing (1) via a reset rod (5), and the reset rod (5) is an elastic plastic part.
5. The operating mechanism for facilitating endoscope lens angle adjustment according to claim 2, characterized in that: The shift block (41) is provided with an operating rod (6), one end of the operating rod (6) away from the shift block (41) protrudes out of the endoscope housing (1), and the endoscope housing (1) is provided with a clearance hole (11) for the operating rod (6) to move. When the shift block (41) slides to contact the first power contact (421), the operating rod (6) abuts against the inner wall of one end of the clearance hole (11); when the shift block (41) slides to contact the second power contact (431), the operating rod (6) abuts against the inner wall of the other end of the clearance hole (11).
6. The operating mechanism for facilitating endoscope lens angle adjustment according to claim 5, characterized in that: One end of the operating rod (6) extending outside the endoscope housing (1) is connected to an operating button (7); a side of the operating button (7) away from the operating rod (6) is in the form of an arc surface, and a middle portion of the arc surface protrudes in a direction close to the operating rod (6).
7. The operating mechanism for facilitating endoscope lens angle adjustment according to claim 6, characterized in that: A plurality of friction strips (71) are arranged on a surface of the operating button (7) away from the operating rod (6).
8. The operating mechanism for facilitating endoscope lens angle adjustment according to claim 7, characterized in that: The plurality of friction strips (71) are arranged at equal distances along the length direction of the operating button (7).