Multi-angle observation nerve flexible endoscope assembly

Abstract

The invention discloses a multi-angle observation nerve flexible endoscope assembly, and relates to the technical field of endoscopes, the multi-angle observation nerve flexible endoscope assembly comprises an isolation tube, one end of the isolation tube is fixedly connected with an operation box, and the end, away from the operation box, of the isolation tube is provided with a shooting structure; mounting holes which are uniformly distributed are formed in the outer side of the operation box, a knob is mounted in each mounting hole, a limiting ring is fixedly connected to the interior of the mounting hole in the outer side of the operation box, the knob is rotationally connected to the interior of the limiting ring, and a connecting block is fixedly connected to the end, close to the interior of the operation box, of the knob; and two symmetrically-distributed positioning blocks are slidably connected into the connecting block. According to the nerve flexible endoscope assembly capable of achieving multi-angle observation, through the linkage design of the rotary knob, the winding sleeve and the pull rope, independent control over the visual angle of the camera and the form of the isolation pipe is achieved, the wavy groove structure of the limiting ring is adopted, it is ensured that the rotary knob can be locked step by step during adjustment, angle drift caused by misoperation is avoided, and the control precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and specifically to a flexible neural endoscope assembly for multi-angle observation. Background Art

[0002] A flexible neural endoscope is a flexible endoscope specifically used for neurosurgery, mainly used to observe and treat lesions in the nervous system such as the brain and spine. Existing flexible neural endoscopes are not convenient to operate, and the operation accuracy is generally average.

[0003] In order to overcome the above defects, a Chinese patent of the prior art (Publication No.: CN216317507U) discloses a neuroendoscope device having such a neuroendoscope assembly. The neuroendoscope assembly includes a distal assembly, which constitutes the distal end section of the neuroendoscope assembly and is configured for imaging and / or illumination. The neuroendoscope assembly further includes: a flexible main hose; a bendable snake bone-like member distal to the main hose; a flexible snake bone outer sheath sleeved on the snake bone-like member; and a rope drive device configured to drive the snake bone-like member to control the bending of the snake bone-like member, and includes a transmission rope and a manipulation member for manipulating the transmission rope. The transmission rope is connected to the snake bone-like member and is movably coupled to the manipulation member through the main hose, which is easy to operate, has a wide field of view, and causes minor secondary damage to patients. There is also a Chinese patent of the prior art (Publication No.: CN117378983A) that discloses a neuroendoscope assembly, including a rigid outer sheath, a flexible endoscope, and a locking sleeve. The rigid outer sheath includes a connection part and a rigid tube body; a first connection head for fixing the rigid tube body is provided at the front end of the connection part, and a clamping part and a limiting part are provided at the tail end; a plugging cavity is formed in the space surrounded by the clamping part and the limiting part; the flexible endoscope includes a plugging part and a flexible catheter; a second connection head for fixing the flexible catheter is provided at the front end of the plugging part; the second connection head is adapted to the plugging cavity, and a stop block is provided on the outer wall of the second connection head; the locking sleeve is rotatably mounted on the clamping part, a stop port abutting against the connection part is provided at the bottom of the inner wall of the locking sleeve, and a chute and a locking block are provided at the top; the clamping part is clamped in the chute, which can achieve precise alignment during the plugging process, and can also easily realize the fixation and separation of the flexible endoscope and the rigid outer sheath, reducing damage to intracranial tissues.

[0004] Although the prior art can overcome the above-mentioned deficiencies, there are still other problems during its operation: it is not convenient to adjust the shooting angle during the use of the flexible neural endoscope, and it is not convenient to change the direction when moving in the human blood vessels. Summary of the Invention

[0005] The object of the present invention is to provide a nerve flexible endoscope assembly for multi-angle observation, so as to solve the problems that the shooting angle of the nerve flexible endoscope is not convenient to adjust during use and it is not convenient to change the direction when moving in the human blood vessel in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: A nerve flexible endoscope assembly for multi-angle observation, including an isolation tube, one end of the isolation tube is fixedly connected with an operation box, and a shooting structure is installed at the end of the isolation tube away from the operation box;

[0007] The outer side of the operation box is provided with evenly distributed mounting holes, and a knob is installed inside each mounting hole. A limiting ring is fixedly connected inside the mounting hole on the outer side of the operation box, and the knob is rotatably connected inside the limiting ring. One end of the knob close to the inside of the operation box is fixedly connected with a connecting block, and two symmetrically distributed positioning blocks are slidably connected inside the connecting block.

[0008] Preferably, the inner side of the limiting ring is provided with grooves distributed in a wavy structure, and one end of the positioning block away from the inside of the connecting block is snap-connected inside the groove on the inner side of the limiting ring, and the groove inside the limiting ring and the end of the positioning block are both set to an arc structure. Through the linkage design of the knob, the winding sleeve and the pull rope, the independent control of the camera viewing angle and the shape of the isolation tube is realized. The wavy groove structure of the limiting ring is adopted to ensure that the knob can be locked step by step during adjustment.

[0009] Preferably, a positioning spring is fixedly connected between the two positioning blocks, and a winding sleeve is fixedly connected to the outer side of the end of the connecting block away from the limiting ring, and the winding sleeve is located inside the operation box.

[0010] Preferably, a structural cable is installed inside the isolation tube, one end of the structural cable is located inside the operation box, and the end of the structural cable away from the operation box is connected to the shooting structure.

[0011] Preferably, both ends of the structural cable are fixedly connected with connection disks, and the two connection disks are respectively installed inside the operation box and connected to the shooting structure.

[0012] Preferably, a wire conduit is fixedly connected between the structural cable and the connection disk, and the wire conduits are evenly distributed in a ring shape at the connection between the structural cable and the connection disk, and the wire conduits at both ends of the structural cable are aligned with each other.

[0013] Preferably, the shooting structure includes a bellows fixedly connected to the end of the isolation tube, one end of the bellows away from the isolation tube is fixedly connected with an adjusting head, and a camera is fixedly connected to the middle of the end of the adjusting head away from the bellows.

[0014] Preferably, the bellows and the connecting disk are connected to each other, and a reset spring is fixedly connected between the structural cable and the adjusting head, four inner pull ropes equidistantly distributed in a ring shape are fixedly connected to the bottom of the adjusting head, and the inner pull rope is located between the bellows and the reset spring, the inner pull rope is installed inside the wire tube, and the inner pull rope is located outside the structural cable, and the inner pull rope is wound around the outside of the winding sleeve, the reset spring releases energy after the adjustment is completed, so that the adjusting head returns to its initial state, the bellows is flexibly connected, and the seismic resistance is improved: reducing the impact of strenuous exercise or external vibration on the system, protecting internal components, and rigid support of the structural cable.

[0015] Preferably, the interior of the isolation tube is fixedly connected with equally distributed adjustment rings, and the interior of the adjustment ring is provided with equally distributed through holes, and the structural cable is located inside the adjustment ring.

[0016] Preferably, a fixed block is fixedly connected to the inside of the adjustment ring, and an external pull rope is fixedly connected to the side of the fixed block close to the operation box, and the external pull rope is wound around the outside of the winding sleeve. The knob design is ergonomic, and the doctor can quickly adjust the angle with one hand without additional auxiliary tools, thereby improving the smoothness of the surgical operation and independently controlling the camera pitch angle and catheter curvature, so that the doctor can adjust the observation angle more flexibly.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This multi-angle observation neurological flexible endoscope component realizes independent control of the camera viewing angle and the isolation tube shape through the linkage design of the knob, winding sleeve and pull rope. The wavy groove structure of the limit ring is adopted to ensure that the knob can be locked step by step when adjusted, avoiding angle drift caused by misoperation and improving control accuracy.

[0019] The return spring releases energy after the adjustment to restore the adjustment head to its initial state. The bellows is flexibly connected to improve seismic performance: reduce the impact of strenuous exercise or external vibration on the system, protect internal components, and provide rigid support for structural cables to prevent excessive deformation, ensure controlled catheter bending, avoid damage to blood vessel walls or other tissues, and improve safety in use.

[0020] The knob design is ergonomic, and the doctor can quickly adjust the angle with one hand without additional auxiliary tools, which improves the smoothness of surgical operations. The camera pitch angle and catheter curvature can be independently controlled, allowing the doctor to adjust the observation angle more flexibly and improve the accuracy of diagnosis and treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 3 This is a schematic structural diagram of the operation box of the present invention;

[0024] Figure 4 This is a schematic cross-sectional structural diagram of the isolation tube of the present invention;

[0025] Figure 5 This is a schematic structural diagram of the knob of the present invention;

[0026] Figure 6 This is a schematic structural diagram of the limit ring of the present invention;

[0027] Figure 7 This is a schematic structural diagram of the positioning spring of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the adjusting head of the present invention;

[0029] Figure 9 This is a schematic structural diagram of the adjusting ring of the present invention;

[0030] Figure 10 This is a schematic structural diagram of the structural cable of the present invention.

[0031] In the figure: 1. Isolation tube; 2. Operation box; 3. Knob; 4. Limit ring; 5. Connection block; 6. Winding sleeve; 7. Positioning block; 8. Positioning spring; 9. Structural cable; 10. Connection plate; 11. Conduit; 12. Bellows; 13. Adjusting head; 14. Camera; 15. Return spring; 16. Inner pull rope; 17. Adjusting ring; 18. Through hole; 19. Fixed block; 20. Outer pull rope. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Example 1: Please refer to Figure 1 - Figure 10, the present invention provides the following technical solution: A flexible neural endoscope assembly for multi-angle observation, including an isolation tube 1. One end of the isolation tube 1 is fixedly connected to an operation box 2, and a shooting structure is installed at the end of the isolation tube 1 away from the operation box 2; Installation holes are evenly distributed on the outer side of the operation box 2, and a knob 3 is installed inside each installation hole. A limit ring 4 is fixedly connected inside the installation hole on the outer side of the operation box 2, and the knob 3 is rotatably connected inside the limit ring 4. One end of the knob 3 close to the inside of the operation box 2 is fixedly connected to a connecting block 5, and two symmetrically distributed positioning blocks 7 are slidably connected inside the connecting block 5; The inner side of the limit ring 4 is provided with grooves distributed in a wavy structure, and one end of the positioning block 7 away from the inside of the connecting block 5 is snap-fitted inside the groove on the inner side of the limit ring 4, and the groove inside the limit ring 4 and the end of the positioning block 7 are both set to an arc structure; A positioning spring 8 is fixedly connected between the two positioning blocks 7, and a winding sleeve 6 is fixedly connected to the outer side of the end of the connecting block 5 away from the limit ring 4, and the winding sleeve 6 is located inside the operation box 2; A structural cable 9 is installed inside the isolation tube 1, and one end of the structural cable 9 is located inside the operation box 2, and the end of the structural cable 9 away from the operation box 2 is connected to the shooting structure; Both ends of the structural cable 9 are fixedly connected with connection disks 10, and the two connection disks 10 are respectively installed inside the operation box 2 and connected to the shooting structure; A wire conduit 11 is fixedly connected between the structural cable 9 and the connection disk 10, and the wire conduits 11 are evenly distributed in a ring at the connection between the structural cable 9 and the connection disk 10, and the wire conduits 11 at both ends of the structural cable 9 are aligned with each other.

[0034] When the operator rotates the knob 3, the knob 3 cooperates with the arc-shaped end of the positioning block 7 through the wavy groove inside the limit ring 4 to form a step-by-step snap fit. During this process, the positioning spring 8 makes the positioning block 7 slide and gradually position in the groove, thus ensuring that the angle of the knob 3 is controllable and avoiding position deviation caused by loosening or misoperation.

[0035] The knob drives the winding sleeve 6 to rotate: A connecting block 5 is fixedly connected inside the knob 3, and a winding sleeve 6 is fixed at the end of the connecting block 5. When the knob 3 rotates, the connecting block 5 rotates accordingly, and then drives the winding sleeve 6 to rotate synchronously.

[0036] Two groups of pull ropes are wound around the outer side of the winding sleeve 6, namely the outer pull rope 20 and the inner pull rope 16. The outer pull rope 20 is fixed to the fixing block 19 on the adjusting ring 17. When it is tightened, it will apply a pulling force, causing the adjusting ring 17 to have an axial displacement, and then causing the isolation tube 1 to bend in a specific direction. Since multiple adjusting rings 17 are evenly distributed in the lumen and each has an independent outer pull rope 20 for control, local bending or overall continuous bending can be achieved to adapt to blood vessel environments with different paths.

[0037] Inner drawstring 16: It directly acts on the adjustment head 13 and is used to adjust the pitching angle of the camera 14. When the inner drawstring 16 on one side is tightened, the camera 14 will tilt in that direction, thereby changing the viewing angle.

[0038] A structural cable 9 runs through the isolation tube 1. Its two ends are respectively fixed between the operation box 2 and the shooting structure and are fixed by a connection plate 10. The structural cable 9 itself has a certain rigidity and can provide a reverse supporting force when the conduit bends, preventing excessive deformation and improving the stability of the system. In addition, the wire conduits 11 are distributed annularly and equidistantly between the structural cable 9 and the connection plate 10, which helps to reduce the frictional loss during the operation of the drawstring and improve the operation sensitivity.

[0039] Embodiment 2: On the basis of Embodiment 1, a shooting structure is also disclosed, and its specific structure is as follows: The shooting structure includes a bellows 12 fixedly connected to the end of the isolation tube 1. One end of the bellows 12 far from the isolation tube 1 is fixedly connected with an adjustment head 13, and in the middle of the end of the adjustment head 13 far from the bellows 12, a camera 14 is fixedly connected; the bellows 12 and the connection plate 10 are connected to each other, and a return spring 15 is fixedly connected between the structural cable 9 and the adjustment head 13. Four inner drawstrings 16 distributed annularly and equidistantly are fixedly connected to the bottom of the adjustment head 13. The inner drawstrings 16 are located between the bellows 12 and the return spring 15. The inner drawstrings 16 are installed inside the wire conduits 11, outside the structural cable 9, and are wound around the outer side of the winding sleeve 6; equally spaced adjustment rings 17 are fixedly connected inside the isolation tube 1, and equally spaced through holes 18 are provided inside the adjustment rings 17, and the structural cable 9 is located inside the adjustment rings 17; a fixed block 19 is fixedly connected inside the adjustment ring 17, and an outer drawstring 20 is fixedly connected to one side of the fixed block 19 close to the operation box 2, and the outer drawstring 20 is wound around the outer side of the winding sleeve 6.

[0040] The bottom of the inner drawstring 16 is fixed to the adjustment head 13, passes through the wire conduit 11 along the bellows 12, and finally winds around the outer side of the winding sleeve 6. When the inner drawstring 16 on one side is tightened, the corresponding pulling force will force the adjustment head 13 to tilt to that side, thereby driving the camera 14 to generate an angular deflection. The bellows 12, as a flexible connection mechanism, deforms during this process, enabling the camera to smoothly adjust to the required viewing angle.

[0041] During the process of adjusting the camera angle, the reset spring 15 is simultaneously compressed and stores elastic potential energy. Once the operator releases the knob 3, the inner pull rope 16 is no longer under force. At this time, the reset spring 15 releases the stored energy, pushing the adjustment head 13 back to its original position, and the bellows 12 also returns to its initial shape, ensuring that the camera 14 can automatically return to its original position after the operation, avoiding the problem of view drift caused by external interference, and improving the reliability and reusability of the system. The outer pull rope 20 is mainly used to control the bending angle of the isolation tube 1. When the operator rotates the knob 3, the winding sleeve 6 starts to wind or release the outer pull rope 20. One end of the outer pull rope 20 is fixed to the fixed block 19 of the adjustment ring 17, and the other end is transmitted to the winding sleeve 6 through the conduit 11. When the outer pull rope 20 is tightened, the fixed block 19 moves accordingly, causing the adjustment ring 17 to displace, and then forcing the isolation tube 1 to bend in a specific direction. Since the adjustment rings 17 are arranged at equal intervals, flexible segmented bending or continuous bending effects can be achieved by independently adjusting the pull ropes at different positions.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A neural flexible endoscope assembly for multi-angle observation, comprising an isolation tube (1), one end of the isolation tube (1) is fixedly connected to an operation box (2), and a shooting structure is installed at the end of the isolation tube (1) away from the operation box (2). It is characterized in that: The outer side of the operation box (2) is provided with evenly distributed mounting holes, and a knob (3) is installed inside each mounting hole. A limiting ring (4) is fixedly connected inside the mounting hole on the outer side of the operation box (2), and the knob (3) is rotatably connected inside the limiting ring (4). One end of the knob (3) close to the inside of the operation box (2) is fixedly connected to a connecting block (5), and two symmetrically distributed positioning blocks (7) are slidably connected inside the connecting block (5).

2. The multi-angle observation neural flexible endoscope assembly according to claim 1, wherein: The inner side of the limiting ring (4) is provided with grooves distributed in a wavy structure, and one end of the positioning block (7) away from the inside of the connecting block (5) is snap-fitted inside the groove on the inner side of the limiting ring (4), and both the groove inside the limiting ring (4) and the end of the positioning block (7) are provided with arc-shaped structures.

3. The multi-angle observation neural flexible endoscope assembly according to claim 2, wherein: A positioning spring (8) is fixedly connected between the two positioning blocks (7), and a winding sleeve (6) is fixedly connected to the outer side of the end of the connecting block (5) away from the limiting ring (4), and the winding sleeve (6) is located inside the operation box (2).

4. The multi-angle observation nerve flexible endoscope assembly according to claim 1, wherein: A structural cable (9) is installed inside the isolation tube (1), one end of the structural cable (9) is located inside the operation box (2), and the end of the structural cable (9) away from the operation box (2) is connected to the shooting structure.

5. The multi-angle observation neural flexible endoscope assembly according to claim 4, characterized in that: Both ends of the structural cable (9) are fixedly connected to connection plates (10), and the two connection plates (10) are respectively installed inside the operation box (2) and connected to the shooting structure.

6. The multi-angle observation neural flexible endoscope assembly according to claim 5, wherein: A wire conduit (11) is fixedly connected between the structural cable (9) and the connection plate (10), and the wire conduits (11) are evenly distributed in a ring at the connection between the structural cable (9) and the connection plate (10), and the wire conduits (11) at both ends of the structural cable (9) are aligned with each other.

7. The multi-angle observation nerve flexible endoscope assembly according to claim 1, characterized in that: The shooting structure includes a bellows (12) fixedly connected to the end of the isolation tube (1), one end of the bellows (12) away from the isolation tube (1) is fixedly connected to an adjustment head (13), and a camera (14) is fixedly connected to the middle of the end of the adjustment head (13) away from the bellows (12).

8. A multi-angle observation nerve flexible endoscope assembly according to claim 7, characterized in that: The bellows (12) is connected to the connection plate (10), and a return spring (15) is fixedly connected between the structural cable (9) and the adjustment head (13). Four inner pull ropes (16) are fixedly connected to the bottom of the adjustment head (13) and are evenly distributed in a ring. The inner pull ropes (16) are located between the bellows (12) and the return spring (15). The inner pull ropes (16) are installed inside the wire conduit (11), are located outside the structural cable (9), and are wound around the outer side of the winding sleeve (6).

9. The multi-angle observation nerve flexible endoscope assembly according to claim 1, wherein: Adjustment rings (17) are fixedly connected inside the isolation tube (1) at equal intervals, and through holes (18) are provided at equal intervals inside the adjustment rings (17), and the structural cable (9) is located inside the adjustment rings (17).

10. A nerve flexible endoscope assembly for multi-angle observation according to claim 9, characterized in that: A fixing block (19) is fixedly connected inside the adjusting ring (17), and an outer pulling rope (20) is fixedly connected to one side of the fixing block (19) close to the operation box (2), and the outer pulling rope (20) is wound around the outer side of the winding sleeve (6).

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