Self-locking continuum structure of flexible planing instrument for arthroscopic surgery

Abstract

The invention relates to the technical field of surgical operating instruments, and discloses a self-locking continuum structure of a flexible planing instrument for arthroscopic surgery, the self-locking continuum structure comprises a plurality of joint parts and lock catches, the joint parts are sequentially connected through the lock catches, two rotating wheels are arranged at the lower ends of the joint parts, and the rotating wheels are connected with the joint parts through the lock catches. A wheel groove is formed in the upper end of each joint part, a mounting hole is formed in the position, corresponding to the wheel groove, of each joint part, two rotating wheels of one joint part of every two adjacent joint parts are arranged in the wheel groove of the other joint part and connected through the two lock catches, and the two lock catches are arranged in the wheel grooves of the other joint part. The lock catch is used for achieving rotary locking between the two joint parts and enabling the two connected joint parts to rotate in one direction. A self-locking mechanism is introduced, and unprecedented stability and safety are provided for surgical operation. By means of the design, the operating performance of the instrument is improved, and higher confidence and comfort are brought to medical staff.

Description

Technical Field

[0001] The invention relates to the technical field of surgical instruments, and in particular to a self-locking continuum structure of a flexible planing instrument for arthroscopic surgery. Background Art

[0002] Arthroscopic surgery flexible planing instruments are an important minimally invasive surgical tool and have been widely used in modern medicine. Since the 1970s, with the continuous advancement of medical technology, arthroscopic surgery has gradually become a standard treatment method in the fields of orthopedics, sports medicine and trauma surgery. This surgical technique uses an arthroscope to observe the internal structure of the joint and uses specific instruments to perform precise treatment, greatly improving the safety and effectiveness of the surgery.

[0003] Flexible shaving instruments play a vital role in arthroscopic surgery. They are usually designed as slender, flexible tools that can perform efficient tissue cutting and trimming in narrow joint cavities. The design of these instruments must not only take into account their functionality, but also their maneuverability and safety to ensure flexible use in complex surgical environments.

[0004] In recent years, researchers have been constantly exploring the design of new flexible planing instruments to improve their application effects in actual surgeries. For example, the public invention patent application with patent number CN202223588289.2 relates to a flexible medical planer. The flexible medical planer includes an outer sheath and an inner sheath sleeved inside the outer sheath, the outer sheath includes a first cutting portion and a first bending portion connected to each other, and the inner sheath is correspondingly provided with a second cutting portion and a second bending portion connected to each other, so that the inner sheath and the outer sheath are bent in linkage. These technological advances have made arthroscopic surgical planing instruments safer and more efficient, significantly improving the success rate of the operation and the patient's postoperative recovery speed. The application of new planing instruments not only improves the operability and accuracy of the operation, but also provides medical staff with a better field of vision and operating space, laying a solid foundation for the further development and popularization of arthroscopic surgery.

[0005] In minimally invasive surgery, the design and performance of the planing device are crucial to the success of the operation. However, in the prior art, when the planing device is rotated rapidly in a bent state, it often causes severe vibrations. This vibration not only causes the instability of the cutter head, but also may cause the planing process to lose control, thereby increasing the risk of accidental injury to surrounding healthy tissues. Specifically, when the planing device is performing complex cutting tasks, if its rotation speed is too fast, the instrument in the bent state will be offset due to vibration. This offset may cause the cutter head to contact tissue that should not be cut, resulting in accidental damage, which in turn causes postoperative complications or prolongs the patient's recovery time. In addition, the instability of the cutter head may also affect the accuracy of cutting, reduce the surgical effect, and increase the difficulty of operation for medical staff.

[0006] Therefore, the existing shaving devices need to be improved in terms of stability design to solve the vibration problem caused by rotation in the bent state and ensure the safety and effectiveness of the surgical process. The existence of this defect urgently needs to be overcome through innovative technical solutions to improve the overall quality of minimally invasive surgery and the treatment experience of patients. Summary of the Invention

[0007] The purpose of the present invention is to provide a self-locking continuum structure for arthroscopic flexible shaving instruments to solve the vibration problem caused by rotation in the bent state, ensure the safety and effectiveness of the surgical process, and thus improve the overall quality of minimally invasive surgery and the treatment experience of patients.

[0008] To achieve the above purpose, the following technical solutions are adopted:

[0009] A self-locking continuum structure for arthroscopic flexible shaving instruments includes a plurality of joint parts and latches. The plurality of joint parts are sequentially connected by the latches. Two runners are provided at the lower end of the joint part, a runner groove is provided at the upper end of the joint part, and mounting holes are provided at the positions corresponding to the runner grooves on the joint part. For two adjacent joint parts, the two runners of one joint part are arranged in the runner groove of the other joint part and are connected by the two latches. The latches are used to achieve rotational locking between the two joint parts and enable one-way rotation between the two connected joint parts.

[0010] Preferably, in the above self-locking continuum structure for arthroscopic flexible shaving instruments, the latch is assembled in the runner.

[0011] Preferably, in the above self-locking continuum structure for arthroscopic flexible shaving instruments, a rope groove is provided on the latch, and a control rope is further included. The control rope passes through a hole provided on the runner groove and bypasses the rope groove to control the locking function of the latch.

[0012] Preferably, in the above self-locking continuum structure for arthroscopic flexible shaving instruments, a key is provided on the latch, and the key passes through a keyhole provided behind the runner to form the locking of the two joint parts.

[0013] Preferably, in the above self-locking continuum structure for arthroscopic flexible shaving instruments, a plurality of card slots are provided on the keyhole.

[0014] Preferably, in the above self-locking continuum structure for arthroscopic flexible shaving instruments, the plurality of card slots are evenly distributed, and the angle formed between two adjacent card slots is 15 degrees.

[0015] Preferably, in the above self-locking continuum structure for arthroscopic flexible shaving instruments, the joint parts are in a first state and a second state under the action of the lock.

[0016] Preferably, in the above self-locking continuum structure for arthroscopic flexible shaving instruments, in the first state, under the action of the spring, the lock is in an unlocked state, only restricting the movement between two connected joint parts, so that the two joint parts can only achieve one-degree-of-freedom rotation.

[0017] Preferably, in the above self-locking continuum structure for arthroscopic flexible shaving instruments, in the second state, the key passes through the keyhole behind the runner to form a lock between the two joint parts.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. Improve stability and controllability:

[0020] Aiming at the severe vibration problem caused by the rotation of the flexible shaving equipment in the bent state in the prior art, the present invention significantly reduces the vibration amplitude during rapid rotation by optimizing the structure and material selection, thereby improving the stability of the tool head. The stable tool head ensures the controllability of the cutting process, reduces accidental offsets caused by equipment vibration, and reduces the risk of accidental injury to surrounding healthy tissues.

[0021] 2. Enhance cutting accuracy:

[0022] The improved flexible shaving device can maintain higher cutting accuracy when performing complex cutting tasks. By reducing vibration and tool head instability, medical staff can more accurately control the cutting depth and angle, ensuring that only the target tissue is cut. This improvement in accuracy not only optimizes the surgical effect but also reduces the occurrence of postoperative complications and enhances the patient's treatment experience.

[0023] 3. Precise locking mechanism:

[0024] The precise cooperation between the key and the keyhole in the lock design enables the joint to be locked at intervals of 15 degrees. This design ensures the high precision of the locking process and prevents operation risks caused by improper locking. Medical staff can quickly and accurately lock the joint position according to specific surgical needs, enhancing the reliability of surgical operations.

[0025] 4. Simple operation experience:

[0026] Applying a pulling force through the control rope can achieve the rapid contraction and locking of the buckle, and this simple operation method reduces the complexity of the surgical operation. Medical staff can quickly complete the locking or unlocking of the joint in a tense surgical environment, improving the overall operation fluency and efficiency. This design significantly reduces the fatigue of the operator and improves the working comfort during the operation.

[0027] 5. Enhanced safety and reliability:

[0028] The entire self-locking mechanism greatly reduces the risk caused by accidental movement by ensuring the stability of the joint during the operation. This reliable operation experience provides more confidence for medical staff in high-risk medical operations and ensures the smooth progress of the medical process. Through this design, the present invention has significant advantages in improving the safety and reliability of medical devices. Brief Description of the Drawings

[0029] Figure 1 Shows the overall structural schematic diagram of a self-locking continuum structure of a flexible shaving instrument for arthroscopic surgery according to an embodiment of the present invention.

[0030] Figure 2 Shows the exploded view of a self-locking continuum structure of a flexible shaving instrument for arthroscopic surgery according to an embodiment of the present invention.

[0031] Figure 3 Shows the structural schematic diagram of a joint part in a self-locking continuum structure of a flexible shaving instrument for arthroscopic surgery in the first state according to an embodiment of the present invention.

[0032] Figure 4 Shows the structural schematic diagram of a joint part in a self-locking continuum structure of a flexible shaving instrument for arthroscopic surgery in the second state according to an embodiment of the present invention.

[0033] Description of the Reference Numerals:

[0034] 1. Joint part; 2. Buckle; 3. Groove; 4. Mounting hole; 5. Runner; 6. Rope groove; 7. Hole; 8. Key; 9. Keyhole; 10. Spring. Detailed Embodiment

[0035] The following illustrates the embodiments of the present invention through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0036] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments.

[0037] An embodiment of the present invention provides a self-locking continuum structure for a flexible shaving instrument in arthroscopic surgery, as Figure 1 and Figure 2 shown. The self-locking continuum structure for the flexible shaving instrument in arthroscopic surgery includes a plurality of joint parts 1 and locking latches 2. The plurality of joint parts 1 are sequentially connected through the locking latches 2. Two runners 5 are provided at the lower end of the joint part 1, a runner groove 3 is provided at the upper end of the joint part 1, and mounting holes 4 are provided at positions corresponding to the runner groove 3 on the joint part 1. For two adjacent joint parts 1, the two runners 5 of one joint part 1 are arranged in the runner groove 3 of the other joint part and are connected through the two locking latches 2. The locking latches 2 are used to realize the rotational locking between the two joint parts 1 and enable one-way rotation between the two connected joint parts 1. The locking latches 2 are assembled in the runners 5.

[0038] It should be noted that Figure 1 the shown is a schematic structural diagram of four joint parts 1 connected through the locking latches 2. In actual implementation, the number of joint parts 1 can be reasonably selected according to requirements. The joint parts 1 are at least two. This is only an example here and does not constitute a limitation to the present invention.

[0039] In this embodiment, a continuous flexible system can be formed by connecting a plurality of joint parts 1 to each other, and it can be effectively operated in a variety of complex environments.

[0040] The designed function of the locking latch 2 is to realize the rotational locking between joints under the action of a spring 10 and a traction rope (not shown in the figure). This mechanism ensures that the joint part 1 remains stable at a specific position, avoids unnecessary displacement, and thus improves the accuracy and safety of the operation. In addition, the locking latch 2 also allows one-way deflection between every two joint parts 1, facilitating angle adjustment according to needs during the operation without affecting the stability of the overall structure.

[0041] During the installation process of the self-locking continuum structure for the flexible shaving instrument in arthroscopic surgery, first, the two runners 5 of the joint part 1 are inserted into the runner groove 3 to realize the effective connection of the joints. The control rope of the locking latch 2 passes through the hole 7 and bypasses the rope groove 6 of the locking latch 2, thereby controlling the locking function of the locking latch 2 to ensure the stability of joint rotation.

[0042] The realization of the self-locking function occurs at the overlapping part of the two joint parts 1. For the sake of easy understanding, this embodiment shows the interaction between the lock 2 and one of the joint parts 1 as an example. The joint part 1 is in the first state and the second state under the action of the lock 2.

[0043] In the first state, due to the action of the spring 10, the lock 2 is in the unlocked state. At this time, only the movement between the two joint parts 1 is restricted, so that the two joint parts 1 can only achieve one-degree-of-freedom rotation. This design enables the operator to flexibly adjust the angle of the joint without worrying about the interference of the locking mechanism.

[0044] When a pulling force is applied to the control rope, causing the lock 2 to contract inward, the key 8 of the lock 2 will insert into the keyhole 9 designed with a card slot. The keyhole 9 is provided with a card slot every 15 degrees to achieve precise locking.

[0045] In the second state, the key 8 passes through the keyhole 9 behind the runner 5 to form a lock between the two joint parts 1. This locking mechanism ensures the stability of the joint during the operation and avoids operation errors caused by accidental movement.

[0046] Therefore, in the use of the flexible shaving tool for arthroscopic surgery, the present invention introduces an innovative self-locking mechanism, providing unprecedented stability and safety for the surgical operation. This design not only improves the operating performance of the instrument, but also brings higher confidence and comfort to medical staff.

[0047] Specifically, the present invention adopts an innovative self-locking design, enabling the joint part 1 to achieve stable locking during the operation. This mechanism, through the precise cooperation of the lock 2, can quickly lock the angle of the joint when needed, preventing accidental displacement during the operation, thus significantly improving the safety and reliability of the operation. This self-locking function ensures that medical staff can focus on the operation itself when performing complex operations without worrying about the displacement of the instrument.

[0048] Moreover, the present invention also has a precise adjustment function. The unique configuration design of the key 8 and the keyhole 9 allows locking selection every 15 degrees, making the angle adjustment of the joint part 1 more flexible. This design not only improves the applicability of the instrument, but also can meet the precise control of different surgical requirements. Medical staff can quickly and accurately adjust the joint position according to the specific surgical situation to ensure the best operating angle is maintained throughout the operation, thereby improving the efficiency and success rate of the operation.

[0049] In summary, the core of the self-locking continuum structure for the flexible shaving instrument for arthroscopic surgery lies in the self-locking structure and the lock and control rope mechanism.

[0050] Specifically, for the self-locking structure, it includes the synergistic effect between the joint part and the buckle. The design of this structure ensures that the joint part can be safely and stably locked during the operation, preventing accidental displacement. Through reasonable material selection and precise engineering design, high reliability in various surgical environments is ensured. This protection not only covers the overall form of the structure, but also includes the specific connection method and operation principle, ensuring the uniqueness and market competitiveness of the present invention in the field of medical devices.

[0051] For the control rope mechanism, by effectively utilizing the mechanical properties of the spring, the stability and reliability of the buckle in different states are ensured. The design of the control rope enables medical staff to easily achieve rapid adjustment of the buckle, ensuring that the joint can be quickly locked or unlocked when needed. The implementation of this control rope mechanism includes the specific structure of the buckle, the configuration of the spring, and the connection method of the control rope, ensuring the functionality and practicality of the entire mechanism in actual applications, thereby improving the safety and efficiency of the operation.

[0052] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the patent protection scope of the present invention shall be defined by the claims.

Claims

1. A self-locking continuum structure for a flexible planing instrument for arthroscopic surgery, characterized in that: It includes multiple joint parts and locks, and the multiple joint parts are connected in sequence through the locks. Two rotating wheels are arranged at the lower end of the joint parts, and a wheel groove is arranged at the upper end of the joint parts. Mounting holes are arranged on the joint parts corresponding to the positions of the wheel grooves. Two adjacent joint parts, the two rotating wheels of one joint part are arranged in the wheel groove of the other joint part, and are connected through the two locks. The locks are used to realize rotation locking between the two joint parts and enable unidirectional rotation between the two connected joint parts.

2. A self-locking continuum structure for a flexible shaving instrument for arthroscopic surgery as claimed in claim 1, characterized in that: The lock buckle is assembled in the rotating wheel.

3. A self-locking continuum structure for a flexible shaving instrument for arthroscopic surgery as claimed in claim 2, characterized in that: The lock buckle is provided with a rope groove and also includes a control rope. The control rope passes through a hole provided on the wheel groove and bypasses the rope groove, thereby controlling the locking function of the lock buckle.

4. A self-locking continuum structure for a flexible planing instrument for arthroscopic surgery as claimed in claim 3, characterized in that: The lock buckle is provided with a key, and the key passes through a key hole provided at the rear of the rotating wheel to form a lock of two joint parts.

5. A self-locking continuum structure for a flexible shaver for arthroscopic surgery as claimed in claim 4, characterized in that: A plurality of slots are arranged on the keyhole.

6. A self-locking continuum structure for a flexible shaver for arthroscopic surgery as claimed in claim 5, characterized in that: The plurality of card slots are evenly distributed, and an angle formed between two adjacent card slots is 15 degrees.

7. A self-locking continuum structure for a flexible shaver for arthroscopic surgery as claimed in claim 5, characterized in that: The joint part is in a first state and a second state under the action of the lock.

8. A self-locking continuum structure for a flexible planing instrument for arthroscopic surgery as claimed in claim 7, characterized in that: In the first state, under the action of the spring, the lock is in an unlocked state, only restricting the movement between the two connected joint parts, so that the two joint parts can only achieve one degree of freedom of rotation.

9. A self-locking continuum structure for a flexible planing instrument for arthroscopic surgery as claimed in claim 7, characterized in that: In the second state, the key passes through the keyhole behind the rotating wheel to form a lock between the two joint parts.

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