Screw rod capable of locking snake bone direction of medical endoscope

Abstract

The utility model discloses a screw capable of locking the snake bone direction of a medical endoscope, and belongs to the technical field of medical instruments. The screw comprises an adjusting assembly which is arranged in an endoscope handle and used for adjusting the angle of the snake bone, and a locking nut which is fixedly arranged in the endoscope handle and corresponds to one side in the adjusting assembly. The inserting rod sequentially penetrates through the adjusting assembly and the endoscope handle and is used for abutting against the side, away from the locking nut, of the adjusting assembly, and the thread is arranged at the end of the inserting rod and matched with the locking nut. According to the screw rod capable of locking the direction of the snake bone of the medical endoscope, through mechanical locking force generated by thread meshing and reverse rotating force of the locking nut, rigid fixation can be achieved without continuous manual maintenance after the direction of the snake bone is adjusted, and snake bone displacement and angle springback are effectively prevented; the endoscope can be kept stable in the using process, the accuracy and safety of an operation are improved, and the physical burden of medical staff is relieved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically a screw that can lock the serpentine direction of a medical endoscope. Background Technology

[0002] In current medical technology, endoscopes, as an important minimally invasive surgical tool, are widely used in various diagnostic and treatment procedures. Endoscopes, with their serpentine structure, provide flexible operating space, especially crucial for observation and surgery within confined body cavities, where the direction control of the serpentine structure plays a vital role. The serpentine structure possesses good flexibility and curvature, allowing adjustment of the endoscope's angle and direction according to surgical needs.

[0003] However, the locking of the snake bone in current medical endoscopes usually relies on manual clamping. But in the surgical environment, due to the long-term effects of vibration, temperature fluctuations and fluid penetration on the internal structure of the endoscope, this manual clamping method is difficult to ensure the stability of the snake bone during the operation, and is prone to unexpected displacement, which affects the accuracy of the operation and also poses a high operational risk.

[0004] Therefore, this application provides a screw that can lock the serpentine direction of a medical endoscope to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a screw that can lock the direction of the serpentine bone of a medical endoscope, aiming to solve the problems mentioned in the background art, such as the difficulty in ensuring the stability of the serpentine bone of the medical endoscope in the surgical environment by manually pressing the direction of the serpentine bone, which affects the accuracy of the surgery and poses high risks.

[0006] To achieve the above objectives, this application provides the following technical solution: a screw for locking the direction of the serpentine bone of a medical endoscope, comprising an adjustment component disposed within the endoscope handle for adjusting the angle of the serpentine bone, a locking nut fixedly disposed within the endoscope handle on one side corresponding to the adjustment component, an insert rod passing through the adjustment component and the endoscope handle for abutting the side of the adjustment component away from the locking nut, and a thread disposed at the end of the insert rod and adapted to the locking nut; by utilizing the mechanical locking force generated by the reverse rotational force of the thread engagement with the locking nut to replace the traditional manual locking method, rigid fixation can be achieved without continuous manual maintenance after the serpentine bone direction is adjusted, effectively preventing serpentine bone displacement and angle rebound, ensuring the endoscope remains stable during use, improving the accuracy and safety of surgery, and reducing the physical burden on medical staff.

[0007] Preferably, to facilitate the adjustment of the snake bone angle, the adjustment assembly includes a rotating wheel rotatably connected inside the endoscope handle corresponding to the outside of the locking nut, a steel wire rope sleeved on the outside of the rotating wheel, and a rotating push rod disposed outside the endoscope handle and fixedly connected to the side of the rotating wheel away from the locking nut. The two ends of the steel wire rope away from the rotating wheel are respectively fixedly connected to the two sides inside the snake bone. The insertion rod passes through the rotating wheel and the rotating push rod in sequence and extends to the outside of the endoscope handle. By rotating the rotating push rod to rotate the rotating wheel, and then through the transmission of the steel wire rope, the angle of the snake bone can be quickly fine-tuned without the need for multiple reciprocating rotations to achieve positioning, which greatly improves the operating efficiency. At the same time, it also allows medical staff to simultaneously lock the device by operating the insertion rod with one hand.

[0008] Preferably, in order to prevent the wire rope from detaching from the pulley, an annular groove is provided on the outer side of the pulley at the position corresponding to the position of the wire rope for limiting the wire rope; the design of the annular groove plays a limiting role in the wire rope, ensuring that the wire rope will not slip when the pulley rotates, and this design improves the stability and reliability of the adjustment component.

[0009] Preferably, to facilitate operation of the rotating push rod, the side of the rotating push rod away from the rotating wheel is provided with anti-slip texture; the anti-slip texture design increases the surface roughness of the rotating push rod, thereby increasing the friction between the medical staff's hands and the rotating push rod, making it easier for the medical staff to grip and rotate during operation, and improving operational stability.

[0010] Preferably, to improve the locking force, a locking sleeve for contacting the outer side of the rotating wheel is fixedly provided on the end of the locking nut away from the rotating wheel. The locking sleeve is fixedly installed inside the endoscope handle. The design of the locking sleeve increases the contact area and friction when the thread on the insertion rod is locked, so that after the thread on the insertion rod is initially locked by the locking nut through rotation, the locking sleeve can further lock it, thereby improving the locking force and ensuring that the snake bone can remain stable after adjustment.

[0011] Preferably, to facilitate the operation of the insertion rod and the locking adjustment assembly, a lever is fixedly installed at the end of the insertion rod away from the rotary wheel for abutting against the outside of the rotating push rod; the design of the lever provides medical staff with an intuitive and easy-to-grip operating point, allowing them to easily control the movement of the insertion rod by moving the lever, thereby locking or unlocking, and improving the convenience of operation.

[0012] The screw that locks the direction of the medical endoscope's serpentine structure replaces the traditional manual locking method by using the mechanical locking force generated by the reverse rotational force of the threaded engagement and the locking nut. This allows for rigid fixation without continuous manual maintenance after the serpentine structure is adjusted, effectively preventing serpentine displacement and angle rebound. It ensures that the endoscope remains stable during use, improves the accuracy and safety of surgery, and reduces the physical burden on medical staff.

[0013] The screw that locks the direction of the medical endoscope's serpentine frame rotates by turning the rotating push rod, which in turn drives the wheel to rotate. Through the transmission of the steel wire rope, the angle of the serpentine frame can be quickly fine-tuned without having to rotate it back and forth multiple times to achieve positioning, greatly improving operational efficiency. At the same time, it also allows medical staff to operate the insertion rod with one hand to complete the locking process simultaneously. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a screw that can lock the serpentine direction of a medical endoscope;

[0015] Figure 2 A cross-sectional view of a screw that can lock a medical endoscope in the snake-bone direction;

[0016] Figure 3 This is a schematic diagram of the adjustment component in a screw that can lock the snake-bone direction of a medical endoscope;

[0017] Figure 4 This is a schematic diagram of a screw insert that can lock in the snake-bone direction of a medical endoscope.

[0018] In the picture:

[0019] 1. Adjustment assembly; 11. Rotary wheel; 111. Annular groove; 12. Steel wire rope; 13. Rotating push rod; 131. Anti-slip texture;

[0020] 2. Insert rod; 21. Toggle lever;

[0021] 3. Thread;

[0022] 4. Locking nut; 41. Locking sleeve. Detailed Implementation

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

[0024] This embodiment provides a screw that can lock in the snake-bone direction of a medical endoscope, such as... Figures 1-4As shown, the screw includes an adjustment component 1 disposed in the endoscope handle for adjusting the angle of the snake bone, a locking nut 4 fixedly disposed in the endoscope handle on one side corresponding to the adjustment component 1, an insertion rod 2 passing through the adjustment component 1 and the endoscope handle in sequence for abutting the side of the adjustment component 1 away from the locking nut 4, and a thread 3 disposed at the end of the insertion rod 2 and adapted to the locking nut 4.

[0025] When in use, when it is necessary to adjust the angle of the snake bone, medical staff can adjust the angle of the snake bone by operating the adjustment component 1 on the endoscope handle. After adjusting the angle of the snake bone, the medical staff can rotate the insertion rod 2 so that the thread 3 on it is tightly engaged with the internal thread of the locking nut 4. When the thread 3 is fully screwed into the locking nut 4, the insertion rod 2 can tightly abut the adjustment component 1 against the endoscope handle, thereby fixing the adjustment component 1 at the required angle position.

[0026] Specifically, the adjustment assembly 1 includes a rotating wheel 11 rotatably connected inside the endoscope handle to the outside of the locking nut 4, a steel wire rope 12 sleeved on the outside of the rotating wheel 11, and a rotating push rod 13 located outside the endoscope handle and fixedly connected to the side of the rotating wheel 11 away from the locking nut 4. The two ends of the steel wire rope 12 away from the rotating wheel 11 are fixedly connected to the two sides inside the snake bone, respectively. The insertion rod 2 passes through the rotating wheel 11 and the rotating push rod 13 in sequence and extends to the outside of the endoscope handle.

[0027] In order to prevent the wire rope 12 from detaching from the pulley 11, an annular groove 111 is provided on the outer side of the pulley 11 at the position corresponding to the wire rope 12 to limit the wire rope 12. The design of the annular groove 111 limits the wire rope 12 and ensures that the wire rope 12 will not slip when the pulley 11 rotates. This design improves the stability and reliability of the adjustment component 1.

[0028] In addition, to facilitate the operation of the rotating push rod 13, an anti-slip texture 131 is provided on the side of the rotating push rod 13 away from the rotating wheel 11. The design of the anti-slip texture 131 increases the roughness of the surface of the rotating push rod 13, thereby increasing the friction between the medical staff's hands and the rotating push rod 13, making it easier for the medical staff to grip and rotate during operation, and improving the stability of operation.

[0029] Understandably, in order to improve the locking force, a locking nut 4 is fixedly provided at the end of the locking nut 4 away from the rotating wheel 11 for contacting the outside of the rotating wheel 11. The locking nut 41 is fixedly installed inside the endoscope handle. The design of the locking nut 41 increases the contact area and friction when the thread 3 on the insertion rod 2 is locked. After the thread 3 on the insertion rod 2 is initially locked by rotating through the locking nut 4, the locking nut 41 can further tighten it. Even if the locking nut 4 becomes loose for some reason, the locking nut 41 can provide additional support and locking force to prevent the snake bone angle from changing, thereby improving the locking force and ensuring that the snake bone can remain stable after adjustment.

[0030] When the angle of the snake bone needs to be adjusted, medical staff rotate the rotating push rod 13 on the outside of the endoscope handle, which drives the rotating wheel 11 to rotate inside the endoscope handle. Then, the rotation of the rotating wheel 11 is transmitted to both sides inside the snake bone through the steel wire rope 12, causing the snake bone to bend or straighten, thereby adjusting the observation angle of the endoscope. After adjusting the angle of the snake bone, the medical staff continues to rotate the lever 21 to drive the insertion rod 2 to rotate. At this time, the rotation of the insertion rod 2 will cause its thread 3 to engage tightly with the internal thread of the locking nut 4. When the thread 3 is fully screwed into the locking nut 4, the lever 21 can tightly press the rotating push rod 13 against the outside of the endoscope handle, and the side of the adjustment component 1 away from the rotating push rod 13 will tightly abut against the locking nut 41, thereby fixing the snake bone at the required angle position. When the thread 3 on the insertion rod 2 rotates through the locking nut 4, the internal thread of the locking nut 41 can further engage tightly with the thread 3, further ensuring the stability of the snake bone after the angle is adjusted.

[0031] Furthermore, a lever 21 is fixedly installed at the end of the insertion rod 2 away from the rotating wheel 11 for abutting against the outside of the rotating push rod 13; the design of the lever 21 provides medical staff with an intuitive and easy-to-grip operating point, allowing them to easily control the movement of the insertion rod 2 by moving the lever 21, thereby locking or unlocking, and improving the convenience of operation.

[0032] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A screw that can lock the direction of the snake bone in a medical endoscope, including an adjustment component (1) disposed in the endoscope handle for adjusting the angle of the snake bone; Its features are: The screw also includes a locking nut (4) fixedly disposed in the endoscope handle corresponding to one side of the adjustment component (1), a plug (2) passing through the adjustment component (1) and the endoscope handle in sequence for abutting the side of the adjustment component (1) away from the locking nut (4), and a thread (3) disposed at the end of the plug (2) and adapted to the locking nut (4).

2. The screw capable of locking the medical endoscope in the serpentine direction according to claim 1, characterized in that: The adjustment assembly (1) includes a rotating wheel (11) rotatably connected inside the endoscope handle to the outside of the locking nut (4), a steel wire rope (12) sleeved on the outside of the rotating wheel (11), and a rotating push rod (13) disposed outside the endoscope handle and fixedly connected to the side of the rotating wheel (11) away from the locking nut (4). The two ends of the steel wire rope (12) away from the rotating wheel (11) are fixedly connected to the two sides inside the snake bone, respectively. The insertion rod (2) passes through the rotating wheel (11) and the rotating push rod (13) in sequence and extends to the outside of the endoscope handle.

3. The screw capable of locking the medical endoscope in the serpentine direction according to claim 2, characterized in that: An annular groove (111) for limiting the position of the wire rope (12) is provided on the outer side of the wheel (11).

4. The screw capable of locking the medical endoscope in the serpentine direction according to claim 2, characterized in that: The rotating push rod (13) has anti-slip texture (131) on the side away from the rotating wheel (11).

5. The screw capable of locking the medical endoscope in the serpentine direction according to claim 2, characterized in that: The locking nut (4) is fixedly provided with a locking sleeve (41) for contacting the outside of the rotating wheel (11) on the side end away from the rotating wheel (11), and the locking sleeve (41) is fixedly installed inside the endoscope handle.

6. The screw capable of locking the medical endoscope in the serpentine direction according to claim 2, characterized in that: The end of the insert (2) away from the rotating wheel (11) is fixedly equipped with a lever (21) for abutting against the outside of the rotating push rod (13).

Images