Surgical endoscope

Abstract

The surgical endoscope comprises a support and a camera module, an endoscope host is arranged on the support, the camera module is electrically connected with the endoscope host through a wire, a mounting frame is mounted on one side of the support, supporting rods are symmetrically connected to the mounting frame, and the camera module is electrically connected with the camera host through a wire. A placement ring used for movably sleeving the camera module is rotationally connected between the two groups of supporting rods, and when the placement ring and the supporting rods rotate relatively, the inner side of the placement ring shrinks inwards. After insertion, the placement ring needs to be rotated relative to the supporting rod, so that the part, used for being connected with the insertion pipe, above the camera module is rotated to a horizontal state, the insertion pipe is conveniently placed, in the process, the inner side of the placement ring shrinks inwards to fix the camera module, and therefore the camera module is prevented from falling off.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, specifically endoscopes for surgery. Background Art

[0002] An endoscope enters the human body through a natural orifice of the human body or a small incision made during surgery. When in use, the endoscope is introduced into the organ to be examined, and the changes in the relevant part can be directly observed.

[0003] Chinese Patent Publication No.: CN211484983U discloses a serpentine mechanical fixing arm, which includes a serpentine arm, a driving device, a gas valve, a housing, and a clamping manipulator. The tail of the serpentine arm is connected to the driving device through the housing, and a gas valve and a clamping manipulator are provided at the end of the serpentine arm.

[0004] In this solution, the provided structure is used to place and fix the camera module part of the endoscope. However, when in use, the fixation of the camera module part is a limit deadlock, and during use, it can only rely on the structure itself for adjustment, which is not flexible enough. And if the camera module part is removed, it is not flexible and convenient to place. Summary of the Invention

[0005] The purpose of the present invention is to provide an endoscope for surgery to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An endoscope for surgery includes a bracket and a camera module. An endoscope main body is provided on the bracket. The camera module and the endoscope main body are electrically connected through a wire. An installation frame is installed on one side of the bracket. Support rods are symmetrically connected to the installation frame. An installation ring for movably sleeving the camera module is rotatably connected between the two support rods. When the installation ring and the support rod rotate relative to each other, the inner side of the installation ring contracts inward.

[0008] As a further solution of the present invention: The camera module includes an operation part and a head end which are assembled and connected. A lining ring is fixedly sleeved around the connection part of the operation part and the head end. A ball head is rotatably embedded at the end of the head end far from the operation part. A rubber sleeve is connected to the outer periphery of the upper end of the ball head. A cannula connector is fixedly penetrated through the ball head. An arc-shaped sawtooth is provided at the end of the cannula connector far from the ball head. A driving component matching with the cannula connector is provided in the head end.

[0009] As a further solution of the present invention: The driving component includes a transmission wheel rotatably connected in the head end. The transmission wheel meshes and drives with the sawtooth. A driving wheel is meshed and driven on the side of the transmission wheel far from the cannula connector. A driving motor is connected to the driving wheel.

[0010] As a further solution of the present invention: clamping plates are symmetrically and rotatably embedded on both sides of the inner side of the placement ring, bearing sleeves are symmetrically installed on both sides of the outer side of the placement ring, the ends of the two support rods are respectively rotatably connected to the two bearing sleeves on both sides of the placement ring, and the ends of the support rods extend into the placement ring.

[0011] As a further solution of the present invention: the support rod includes a rod body fixedly connected to the mounting frame, the rod body is an "L"-shaped rod material, the bent ends of the two rod bodies are arranged opposite to each other, and both are rotatably connected to the bearing sleeve. A rotating gear is sleeved and fixed on the outer periphery of the end of the rod body extending into the inner cavity of the placement ring, and a cam is fixedly connected to this end, and the edge of the cam is in contact with the clamping plate.

[0012] As a further solution of the present invention: a driving assembly is movably embedded on the outer surface of the placement ring, a limiting assembly is arranged in the inner cavity of the placement ring and is in transmission connection with the driving assembly, and the limiting assembly is in limiting cooperation with the rotating gear.

[0013] As a further solution of the present invention: the limiting assembly includes a rotating piece rotatably connected to the side wall of the inner cavity of the placement ring, the rotating piece is an arc-shaped bent thin sheet, a torsion spring for rotating the end of the rotating piece towards the rotating gear is connected between the rotating piece and the inner cavity of the placement ring, and a clamping ring adapted to be clamped with the rotating gear is fixedly connected to the end of the rotating piece close to the rotating gear, and a traction rope is connected between the clamping ring and the driving assembly.

[0014] As a further solution of the present invention: a second guide wheel is rotatably connected near the rotating gear in the inner cavity of the placement ring, and first guide wheels are symmetrically and rotatably connected on both sides of the driving assembly in the placement ring, and the traction rope passes through the outer periphery of the first guide wheel and the second guide wheel.

[0015] As a further solution of the present invention: the clamping plate includes a rotating plate rotatably connected to the inner side of the placement ring, a rubber pad is attached to the surface of the rotating plate facing the inner side of the placement ring, a sloping block is attached to the surface of the rotating plate facing the inner cavity of the placement ring, the edge of the cam is in contact with the sloping block, and a torsion spring for rotating the rotating plate towards the inner cavity of the placement ring is connected between the rotating plate and the placement ring.

[0016] As a further solution of the present invention: the driving assembly includes a button slidably embedded in the outer side of the placement ring, a sliding blind hole is embedded on the side of the button facing the inner cavity of the placement ring, an elastic rod is slidably fitted and connected to the sliding blind hole, the end of the elastic rod away from the sliding blind hole is fixedly connected to the inner cavity of the placement ring, a spring is connected between the end of the elastic rod extending into the sliding blind hole and the top of the inner part of the sliding blind hole, and traction ropes are fixedly connected to both sides of the button.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The camera module can be placed on the placement ring from top to bottom, and the wire connecting the camera module and the endoscope host is located on the lower side. After passing through the opening of the mounting bracket, it is connected to the endoscope host. Since a cannula needs to be connected above the camera module, after the insertion, the placement ring needs to be rotated relative to the support rod so that the part above the camera module for connecting the cannula rotates to a horizontal state for the placement of the cannula. During this process, the inner side of the placement ring contracts inward to fix the camera module, thereby preventing the camera module from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention.

[0019] Figure 2 is a schematic structural diagram of the camera module in the present invention.

[0020] Figure 3 is Figure 2 an enlarged schematic structural diagram of area A in

[0021] Figure 4 is Figure 2 an enlarged schematic structural diagram of area B in

[0022] Figure 5 is a schematic structural diagram of the placement ring in the present invention.

[0023] Figure 6 is a schematic structural diagram of the support rod in the present invention.

[0024] Figure 7 is a cross-sectional view of the placement ring in the present invention.

[0025] Figure 8 is Figure 7 an enlarged schematic structural diagram of area D in

[0026] Figure 9 is a schematic structural diagram of the snap ring and the rotating piece in the present invention.

[0027] Figure 10 is Figure 7 an enlarged schematic structural diagram of area C in

[0028] Figure 11 is a schematic structural diagram of the clamping plate in the present invention.

[0029] In the figure: 1 - bracket, 11 - endoscope main unit, 12 - mounting bracket, 2 - support rod, 21 - rod body, 22 - rotating gear, 23 - cam, 3 - placement ring, 31 - bearing sleeve, 32 - clamping plate, 3201 - rotating plate, 3202 - rubber pad, 3203 - inclined block, 33 - first guide wheel, 34 - traction rope, 35 - second guide wheel, 36 - snap ring, 37 - rotating piece, 4 - camera module, 41 - operation part, 42 - lining ring, 43 - head end, 44 - ball head, 45 - rubber sleeve, 46 - cannula connector, 47 - drive assembly, 4701 - transmission wheel, 4702 - driving wheel, 5 - drive assembly, 51 - button, 52 - sliding blind hole, 53 - elastic rod. Specific embodiments

[0030] Please refer to Figures 1-3 , in the embodiment of the present invention, a surgical endoscope includes a bracket 1 and a camera module 4. An endoscope main unit 11 is provided on the bracket 1. The endoscope main unit 11 generally consists of an image processing center and a monitor, etc. The image processing center and the monitor are both placed on the bracket 1, and are electrically connected between the image processing center and the monitor. After the image processing center processes the image data, the image is displayed through the monitor. Here, all are prior arts and will not be elaborated here. The camera module 4 and the endoscope main unit 11 are electrically connected through a wire. An installation bracket 12 is installed on one side of the bracket 1. Symmetrically connected to the installation bracket 12 are support rods 2. Between the two groups of support rods 2, a placement ring 3 for movably sleeving the camera module 4 is rotatably connected. When the placement ring 3 and the support rod 2 rotate relative to each other, the inner side of the placement ring 3 contracts inward.

[0031] In this embodiment, the installation bracket 12 is a "U"-shaped plate. The support rods 2 are symmetrically arranged at both ends of the two sides of the installation bracket 12. The camera module 4 can be placed on the placement ring 3 from top to bottom. The wire connecting the camera module 4 and the endoscope main unit 11 is located at the lower side and passes through the opening of the installation bracket 12 and is connected to the endoscope main unit 11. Since a cannula needs to be connected above the camera module 4, after the insertion and matching, the placement ring 3 needs to be rotated relative to the support rod 2 so that the part above the camera module 4 for connecting the cannula rotates to a horizontal state for the placement of the cannula. During this process, the inward contraction of the inner side of the placement ring 3 can fix the camera module 4, thereby avoiding the detachment of the camera module 4. Further preferably, the placement ring 3 is a ring structure and is provided with an opening on the side away from the endoscope main unit 11. Such a design is convenient for the wire at the end of the camera module 4 to pass through and is more convenient for the camera module 4 to be placed on the placement ring 3.

[0032] Such as Figures 2-4As shown, the camera module 4 includes an operating part 41 and a head end 43 that are assembled and connected. A bushing 42 is fixedly provided at the connection between the operating part 41 and the head end 43. The end of the operating part 41 away from the head end 43 is used to connect the wire. The operating part 41 is used to accommodate the motor. The head end 43 is conical. The end of the head end 43 away from the operating part 41 is rotatably embedded with a ball head 44. The upper end of the ball head 44 is connected with a rubber sleeve 45. A plug connector 46 is fixedly provided in the ball head 44. The plug connector 46 is used for assembling and connecting the plug. The plug connector 46 is also connected to the wire, so that the plug connector 46 can be connected through the ball head 4. 4 is rotated to adjust the angle, so as to drive the cannula to adjust the observation angle. The rubber sleeve 45 can be made of medical silicone material to avoid dust and impurities from entering, and it is also convenient to fix the cannula. The cannula and the cannula joint 46 can be connected in a detachable manner such as threaded matching. The end of the cannula joint 46 away from the ball head 44 is provided with arc-shaped saw teeth. The head end 43 is provided with a driving component 47 that cooperates with the cannula joint 46. After starting the driving component 47, the cannula joint 46 can be driven to swing through the ball head 44. The center of the arc surface where the saw teeth at the end of the cannula joint 46 are placed coincides with the center of the ball head 44. In this way, even when the cannula joint 46 swings, it will not be separated from the driving component 47. The outer diameter of the liner ring 42 is larger than the inner diameter of the placement ring 3, and the outer diameter of the operating part 41 matches the inner diameter of the placement ring 3, or it can be slightly smaller than the inner diameter of the placement ring 3. In this way, it is convenient to put one end of the operating part 41 into the placement ring 3 , and to hang the operating part 41 and the head end 43 on the placement ring 3 by using the backing ring 42 .

[0033] Preferably, the driving assembly 47 includes a transmission wheel 4701 rotatably connected to the head end 43, the transmission wheel 4701 is meshingly transmitted with the saw teeth, and a driving wheel 4702 is provided on the side of the transmission wheel 4701 away from the cannula connector 46 for meshing transmission. The driving wheel 4702 is connected to the driving motor, and the transmission ratio between the driving wheel 4702 and the transmission wheel 4701 is less than 1:4. The smaller the transmission ratio, the higher the accuracy of the cannula swinging driven by the cannula connector 46.

[0034] like Figures 5-11As shown in the figure, the placement ring 3 preferably adopts an assembled structure, that is, an incomplete annular structure with a cavity inside is formed by buckles. On both sides of the inner side of the placement ring 3, clamping plates 32 are symmetrically and rotatably embedded. On both sides of the outer side of the placement ring 3, bearing sleeves 31 are symmetrically installed. The ends of the two support rods 2 are respectively rotatably connected to the two bearing sleeves 31 on both sides of the placement ring 3, and the ends of the support rods 2 extend into the placement ring 3. When the placement ring 3 rotates relative to the support rod 2, the ends of the support rod 2 extending into the placement ring 3 can drive the clamping plate 32 to rotate towards the inner side of the placement ring 3 when the placement ring 3 and the support rod 2 rotate relative to each other, so as to realize the limit clamping and fixation of the operation part 41 inserted into the placement ring 3.

[0035] The support rod 2 includes a rod body 21 fixedly connected to the mounting frame 12. The rod body 21 is an "L"-shaped rod material. The bent ends of the two rod bodies 21 are arranged opposite to each other and are both rotatably connected to the bearing sleeve 31. A rotating gear 22 is fixedly sleeved on the periphery of the end of the rod body 21 extending into the inner cavity of the placement ring 3, and a cam 23 is fixedly connected to this end. The edge of the cam 23 is in contact with the clamping plate 32. When the placement ring 3 rotates with the rod body 21 through the bearing sleeve 31, the cam 23 can drive the clamping plate 32 to rotate, so as to form clamping and limiting on the operation part 41 in the placement ring 3.

[0036] Furthermore, a driving component 5 is movably embedded on the outer surface of the placement ring 3. A limiting component is arranged in the inner cavity of the placement ring 3 and is in transmission connection with the driving component 5. The limiting component is in limiting cooperation with the rotating gear 22. When the driving component 5 is pressed towards the placement ring 3, the driving component 5 drives the output end of the limiting component to move away from the rotating gear 22. When the driving component 5 is released, the limiting component resumes the limitation on the rotating gear 22. Such a setting can maintain the relative angle between the placement ring 3 and the rod body 21 when the driving component 5 is not pressed, so as to avoid loosening the clamping and fixation of the clamping plate 32 on the operation part 41 due to shaking. Such a cooperation can better maintain the overall stability of the camera module 4.

[0037] Among them, the limiting component includes a rotating piece 37 rotatably connected to the inner cavity side wall of the placement ring 3. The rotating piece 37 is an arc-shaped bent thin sheet. A torsion spring for making the end of the rotating piece 37 rotate towards the rotating gear 22 is connected between the rotating piece 37 and the inner cavity of the placement ring 3. A clamping ring 36 adapted to be clamped with the rotating gear 22 is fixedly connected to the end of the rotating piece 37 close to the rotating gear 22. A traction rope 34 is connected between the clamping ring 36 and the driving component 5. The traction rope 34 is in a taut state. When the driving component 5 is pressed, the driving component 5 drives the clamping ring 36 to rotate away from the rotating gear 22 through the traction rope 34 by means of the rotating piece 37. At this time, the placement ring 3 can be rotated relative to the end of the rod body 21, so as to clamp and limit the operating part 41. After the driving component 5 is released, the rotating piece 37 drives the clamping ring 36 to resume restricting the rotating gear 22. Thus, the placement ring 3 and the rod body 21 cannot rotate relative to each other, and the operating part 41 is kept limited, and the placement is relatively stable, and the operation is simple and convenient.

[0038] In order to make the transmission of the driving component 5 to the clamping ring 36 stable, a second guide wheel 35 is rotatably connected to the inner cavity of the placement ring 3 near the rotating gear 22. First guide wheels 33 are symmetrically and rotatably connected to both sides of the driving component 5 in the placement ring 3. The traction rope 34 passes through the peripheries of the first guide wheel 33 and the second guide wheel 35. In this way, when the driving component 5 moves into the placement ring 3, it can stably drive the clamping ring 36 and the rotating piece 37 to rotate.

[0039] The clamping plate 32 includes a rotating plate 3201 rotatably connected to the inner side of the placement ring 3. A rubber pad 3202 is attached to the surface of the rotating plate 3201 facing the inner side of the placement ring 3. An inclined block 3203 is attached to the surface of the rotating plate 3201 facing the inner cavity of the placement ring 3. The edge of the cam 23 is attached to the inclined block 3203. A torsion spring for making the rotating plate 3201 rotate towards the inner cavity of the placement ring 3 is connected between the rotating plate 3201 and the placement ring 3. With such a setting, when the shorter part of the cam 23 is attached to the edge of the inclined block 3203, the rotating plate 3201 remains flush with the inner side of the placement ring 3, and the placement ring 3 is horizontally arranged. When the placement ring 3 and the rod body 21 rotate relative to each other, the rotating gear 22 and the cam 23 rotate relative to the placement ring 3, and the longer part of the cam 23 gradually contacts the inclined block 3203, thereby pushing the rotating plate 3201 outwards, so as to fit the operating part 41 and form clamping and fixing.

[0040] Among them, the driving component 5 includes a button 51 slidably embedded outside the placement ring 3. On one side of the button 51 facing the inner cavity of the placement ring 3, a sliding blind hole 52 is embedded. A resilient rod 53 is slidably connected to the sliding blind hole 52. The end of the resilient rod 53 away from the sliding blind hole 52 is fixedly connected to the inner cavity of the placement ring 3. A spring is connected between the end of the resilient rod 53 extending into the sliding blind hole 52 and the top of the inner part of the sliding blind hole 52. Both sides of the button 51 are fixedly connected to the traction ropes 34. In this way, when the button 51 is pressed, the spring is compressed, and the button 51 can drive the traction ropes 34 on both sides to drive the snap ring 36 and the rotating piece 37 to rotate, so as to control the restriction and release of the rotating gear 22. When in use, when rotating the placement ring 3, only need to hold the button 51 to operate, which is convenient to use, and the relative rotation between the placement ring 3 and the rod body 21 can be immediately locked when released.

Claims

1. A surgical endoscope, comprising a bracket and a camera module, wherein an endoscope host is arranged on the bracket, and the camera module and the endoscope host are electrically connected via a wire, wherein: A mounting frame is installed on one side of the bracket, and support rods are symmetrically connected to the mounting frame. A placement ring for movably mounting a camera module is provided between two sets of support rods for common rotation. When the placement ring and the support rod rotate relative to each other, the inner side of the placement ring contracts inward.

2. The surgical endoscope according to claim 1, characterized in that: The camera module includes an operating part and a head end which are assembled and connected. A bushing is fixedly provided on the outer periphery of the connection between the operating part and the head end. A ball head is rotatably embedded in the end of the head end away from the operating part. A rubber sleeve is connected to the outer periphery of the upper end of the ball head. A pipe joint is fixedly passed through the ball head. The end of the pipe joint away from the ball head is provided with arc-shaped serrations. A driving component cooperating with the pipe joint is provided in the head end.

3. The surgical endoscope according to claim 2, characterized in that: The driving assembly includes a transmission wheel rotatably connected to the head end, the transmission wheel meshes with the saw teeth for transmission, and a driving wheel is provided on the side of the transmission wheel away from the insertion tube joint for transmission, and the driving wheel is connected to the driving motor for transmission.

4. The surgical endoscope according to claim 1 or 3, characterized in that: The inner sides of the placement ring are symmetrically rotatably embedded with clamping plates, and the outer sides of the placement ring are symmetrically installed with bearing sleeves. The ends of the two support rods are respectively rotatably connected to the two bearing sleeves on both sides of the placement ring, and the ends of the support rods extend into the placement ring.

5. The surgical endoscope according to claim 4, characterized in that: The support rod includes a rod body fixedly connected to the mounting frame, the rod body is an "L"-shaped rod material, the two bent ends of the rod body are arranged opposite to each other and are both rotatably connected to the bearing sleeve, the end of the rod body extending into the inner cavity of the placement ring is sleeved and fixedly provided with a rotating gear on the outer periphery, and the end is fixedly connected with a cam, and the edge of the cam is fitted with the clamping plate.

6. The surgical endoscope according to claim 5, characterized in that: A driving assembly is movably embedded in the outer surface of the placement ring, and a limiting assembly transmission-connected to the driving assembly is provided in the inner cavity of the placement ring, and the limiting assembly is matched with the rotating gear for limiting.

7. The surgical endoscope according to claim 6, characterized in that: The limiting assembly includes a rotating plate rotatably connected to the side wall of the inner cavity of the placement ring, the rotating plate is an arc-shaped curved thin plate, a torsion spring is connected between the rotating plate and the inner cavity of the placement ring to rotate the end of the rotating plate toward the rotating gear, the rotating plate is fixedly connected to a clamping ring that is adapted to engage with the rotating gear near the end of the rotating gear, and a traction rope is connected between the clamping ring and the driving assembly.

8. The surgical endoscope according to claim 7, characterized in that: A second guide wheel is rotatably connected to the inner cavity of the placement ring near the rotating gear, and first guide wheels are symmetrically rotatably connected to the two sides of the driving assembly in the placement ring, and the traction rope passes through the periphery of the first guide wheel and the second guide wheel.

9. The surgical endoscope according to claim 5, characterized in that: The clamping plate includes a rotating plate rotatably connected to the inner side of the mounting ring, a rubber pad is fitted on the surface of the rotating plate facing the inner side of the mounting ring, a bevel is fitted on the surface of the rotating plate facing the inner cavity of the mounting ring, the cam edge and the bevel are fitted, and a torsion spring is connected between the rotating plate and the mounting ring to force the rotating plate to rotate toward the inner cavity of the mounting ring.

10. The surgical endoscope according to claim 8, characterized in that: The driving assembly includes a button which is slidably embedded in the outside of the placement ring, a sliding blind hole is embedded in the side of the button facing the inner cavity of the placement ring, an elastic rod is slidably connected to the sliding blind hole, the end of the elastic rod away from the sliding blind hole is fixedly connected to the inner cavity of the placement ring, a spring is connected between the end of the elastic rod extending into the sliding blind hole and the top of the sliding blind hole, and both sides of the button are fixedly connected to the traction rope.

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