Self-locking continuum structure for arthroscopic surgery flexible planing instruments

Abstract

The application relates to the technical field of surgical instruments, and discloses a self-locking continuum structure for a flexible planing instrument used in arthroscopic surgery, which comprises multiple joint parts and buckles, the multiple joint parts are sequentially connected through the buckles, the lower end of each joint part is provided with two rotating wheels, the upper end of each joint part is provided with a wheel groove, an installation hole is arranged on each joint part at a position corresponding to the wheel groove, two rotating wheels of one of two adjacent joint parts are arranged in the wheel groove of the other joint part, and the two rotating wheels are connected through two buckles, the buckles are used for realizing the rotation locking between the two joint parts and enabling one-way rotation between the connected two joint parts. The self-locking mechanism is introduced, unprecedented stability and safety are provided for surgical operation, the design not only improves the operation performance of the instrument, but also brings higher confidence and comfort to medical staff.

Description

Technical Field

[0001] This invention relates to the field of surgical instruments, and in particular to a self-locking continuum structure for a flexible shaving instrument used in arthroscopic surgery. Background Technology

[0002] Arthroscopic flexible shaving instruments, as an important minimally invasive surgical tool, 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 orthopedics, sports medicine, and trauma surgery. This surgical technique, by using an arthroscope to observe the internal structures of the joint and by using specific instruments for precise treatment, greatly improves the safety and effectiveness of the surgery.

[0003] In arthroscopic surgery, flexible shaving instruments play a crucial role. They are typically designed as slender, flexible tools capable of efficiently cutting and reshaping tissue within the confined joint cavity. The design of these instruments must consider not only their functionality but also their maneuverability and safety to ensure flexible use in complex surgical environments.

[0004] In recent years, researchers have continuously explored the design of novel flexible shaving instruments to improve their application in actual surgery. For example, patent application CN202223588289.2 discloses a flexible medical shaving blade. This flexible medical shaving blade includes an outer sheath and an inner sheath fitted inside the outer sheath. The outer sheath includes a first cutting section and a first bending section connected together, and the inner sheath is correspondingly provided with a second cutting section and a second bending section connected together, allowing the inner and outer sheaths to bend in conjunction. These technological advancements have made arthroscopic surgical shaving instruments safer and more efficient, significantly improving the success rate of surgery and the speed of postoperative recovery for patients. The application of these new shaving instruments not only improves the operability and accuracy of surgery 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 shaving device are crucial to the success of the procedure. However, in existing technologies, the rapid rotation of the shaving device in a bent position often causes severe vibrations. This vibration not only leads to instability of the blade but can also cause the shaving process to become uncontrollable, increasing the risk of accidental injury to surrounding healthy tissue. Specifically, when performing complex cutting tasks, if the shaving device rotates too fast, the instrument in its bent position may deviate due to vibration. This deviation may cause the blade to come into contact with tissue that should not be cut, resulting in accidental injury, which can lead to postoperative complications or prolong the patient's recovery time. Furthermore, the instability of the blade can also affect the precision of the cutting, reduce surgical outcomes, and increase the difficulty of operation for medical staff.

[0006] Therefore, the stability design of existing planing devices needs improvement to address the vibration problem caused by rotation in a bent state, ensuring the safety and effectiveness of the surgical procedure. This deficiency urgently needs to be overcome through innovative technical solutions to improve the overall quality of minimally invasive surgery and the patient's treatment experience. Summary of the Invention

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

[0008] To achieve the above objectives, the following technical solution is adopted:

[0009] A self-locking continuum structure for a flexible shaving instrument in arthroscopic surgery includes multiple joint parts and latches. The multiple joint parts are connected sequentially by the latches. The lower end of each joint part is provided with two rotating wheels, and the upper end of each joint part is provided with wheel grooves. Mounting holes are provided on each joint part corresponding to the wheel grooves. In two adjacent joint parts, the two rotating wheels of one joint part are disposed in the wheel grooves of the other joint part and are connected by two latches. The latches are used to achieve rotational locking between the two joint parts and to enable unidirectional rotation between the two connected joint parts.

[0010] Preferably, in the above-described self-locking continuum structure for a flexible shaving instrument for arthroscopic surgery, the locking buckle is assembled inside the rotating wheel.

[0011] Preferably, in the above-described self-locking continuum structure for a flexible shaving instrument for arthroscopic surgery, the latch is provided with a rope groove and also includes a control rope. The control rope passes through a hole provided in the wheel groove and goes around the rope groove, thereby controlling the locking function of the latch.

[0012] Preferably, in the above-described self-locking continuum structure for a flexible shaving instrument for arthroscopic surgery, a key is provided on the latch, and the key passes through a keyhole provided behind the rotating wheel to lock the two joint parts.

[0013] Preferably, in the above-described self-locking continuum structure for a flexible shaving instrument for arthroscopic surgery, the keyhole is provided with multiple slots.

[0014] Preferably, in the above-mentioned self-locking continuum structure for a flexible shaving instrument for arthroscopic surgery, multiple slots are evenly distributed, and the angle formed between two adjacent slots is 15 degrees.

[0015] Preferably, in the above-described self-locking continuum structure for a flexible shaving instrument for arthroscopic surgery, the joint components are in a first state and a second state under the action of the latch.

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

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

[0018] The beneficial effects of this invention are:

[0019] 1. Improve stability and controllability:

[0020] This invention addresses the severe vibration problem caused by the rotation of flexible planing equipment in a bent state in existing technologies. By optimizing the structure and material selection, it significantly reduces the vibration amplitude during rapid rotation, thereby improving the stability of the cutting head. A stable cutting head ensures the controllability of the cutting process, reduces unexpected deviations caused by equipment vibration, and lowers the risk of accidental damage to surrounding healthy tissues.

[0021] 2. Enhance cutting accuracy:

[0022] The improved flexible planing device maintains higher cutting precision when performing complex cutting tasks. By reducing vibration and blade instability, medical staff can more accurately control the cutting depth and angle, ensuring that only the target tissue is cut. This increased precision not only optimizes surgical outcomes but also reduces postoperative complications and enhances the patient's treatment experience.

[0023] 3. Precise locking mechanism:

[0024] The precise fit between the key and keyhole in the locking mechanism allows the joint to lock at 15-degree intervals. This design ensures high precision in the locking process, preventing operational 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 procedures.

[0025] 4. Simple and easy-to-use operation experience:

[0026] The lock can be quickly retracted and locked by controlling the tension of the rope, a simple operation that reduces the complexity of surgical procedures. Medical staff can quickly lock or unlock joints in the stressful surgical environment, improving the overall smoothness and efficiency of the procedure. This design significantly reduces operator fatigue and improves comfort during surgery.

[0027] 5. Enhanced security and reliability:

[0028] The entire self-locking mechanism significantly reduces the risk of accidental movement by ensuring joint stability during surgery. This reliable operating experience provides healthcare professionals with greater confidence during high-risk medical procedures, ensuring the smooth progress of the medical process. Through this design, the present invention offers significant advantages in improving the safety and reliability of medical devices. Attached Figure Description

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

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

[0031] Figure 3 A schematic diagram of a joint component in a first state is shown in a self-locking continuum structure for a flexible planing instrument for arthroscopic surgery according to an embodiment of the present invention.

[0032] Figure 4 A schematic diagram of a joint component in a second state is shown in a self-locking continuum structure for a flexible planing instrument for arthroscopic surgery according to an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Joint parts; 2. Lock; 3. Wheel groove; 4. Mounting hole; 5. Wheel; 6. Rope groove; 7. Hole; 8. Key; 9. Keyhole; 10. Spring. Detailed Implementation

[0035] The following specific examples illustrate the implementation of the present invention. 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, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0036] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0037] This invention provides a self-locking continuum structure for a flexible shaving instrument used in arthroscopic surgery, such as... Figure 1 and Figure 2 As shown, the self-locking continuum structure of the flexible shaving instrument for arthroscopic surgery includes multiple joint parts 1 and locking buckles 2. The multiple joint parts 1 are connected sequentially by the locking buckles 2. The lower end of each joint part 1 is provided with two rotating wheels 5, and the upper end of each joint part 1 is provided with a wheel groove 3. Mounting holes 4 are provided on each joint part 1 corresponding to the wheel groove 3. For two adjacent joint parts 1, the two rotating wheels 5 of one joint part 1 are disposed in the wheel groove 3 of the other joint part and are connected by the two locking buckles 2. The locking buckles 2 are used to realize rotational locking between the two joint parts 1 and to enable unidirectional rotation between the two connected joint parts 1. The locking buckles 2 are assembled in the rotating wheels 5.

[0038] It should be noted that, Figure 1 The diagram shows a structure in which four joint parts 1 are connected by a latch 2. In actual implementation, the number of joint parts 1 can be reasonably selected according to the requirements. There are at least two joint parts 1. This is just an example and does not constitute a limitation on the present invention.

[0039] In this embodiment, multiple joint parts 1 can be interconnected to form a continuous and flexible system, which can operate effectively in a variety of complex environments.

[0040] The locking mechanism 2 is designed to achieve rotational locking between joints under the action of spring 10 and traction rope (not shown in the figure). This mechanism ensures that joint components 1 remain stable in a specific position, avoiding unnecessary displacement and thus improving the accuracy and safety of the operation. In addition, locking mechanism 2 also allows for unidirectional deflection between every two joint components 1, facilitating angle adjustments as needed during surgery without affecting the overall structural stability.

[0041] During the installation of the self-locking continuum structure of the flexible arthroscopic shaving instrument, the two wheels 5 of the joint component 1 are first inserted into the wheel grooves 3 to achieve effective joint connection. The control rope of the latch 2 passes through the hole 7 and wraps around the rope groove 6 of the latch 2, thereby controlling the locking function of the latch 2 to ensure the stability of joint rotation.

[0042] The self-locking function is achieved at the overlap of the two joint parts 1. For ease of understanding, this embodiment illustrates the interaction between the latch 2 and one of the joint parts 1 as an example. The joint part 1 is in a first state and a second state under the action of the latch 2.

[0043] In the first state, due to the action of spring 10, latch 2 is in an unlocked state, which only restricts the movement between the two joint parts 1, allowing each joint part 1 to rotate in only one degree of freedom. This design allows the operator to flexibly adjust the angle of the joints without worrying about interference from the locking mechanism.

[0044] When the control rope is pulled, causing the latch 2 to retract inward, the key 8 of the latch 2 will be inserted into the keyhole 9, which is designed with slots. The keyhole 9 has a slot every 15 degrees to achieve precise locking.

[0045] In the second state, the key 8 passes through the keyhole 9 behind the rotating wheel 5, forming a lock between the two joint parts 1. This locking mechanism ensures that the joint remains stable during surgery, avoiding operational errors caused by accidental movement.

[0046] Therefore, this invention introduces an innovative self-locking mechanism into the use of flexible shaving tools in arthroscopic surgery, providing unprecedented stability and safety for the surgical procedure. This design not only improves the instrument's operability but also brings greater confidence and comfort to medical staff.

[0047] Specifically, this invention employs an innovative self-locking design, enabling the joint component 1 to be stably locked during surgery. This mechanism, through the precise engagement of the latch 2, can quickly lock the joint angle when needed, preventing accidental displacement during operation and significantly improving the safety and reliability of the surgery. This self-locking function ensures that medical personnel can focus on the surgery itself during complex procedures without worrying about instrument displacement.

[0048] Furthermore, this invention also features precise adjustment capabilities. The unique configuration of the key 8 and keyhole 9 allows for locking selection at 15-degree intervals, making the angle adjustment of the joint component 1 more flexible. This design not only improves the instrument's applicability but also enables precise control to meet the needs of different surgeries. Medical personnel can quickly and accurately adjust the joint position according to the specific surgical situation, ensuring that the optimal operating angle is maintained throughout the entire surgical procedure, thereby improving surgical efficiency and success rate.

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

[0050] Specifically, the self-locking structure includes the synergistic action between the joint components and the locking mechanism. This structure is designed to ensure the joint components are safely and stably locked during surgery, preventing accidental displacement. Through appropriate material selection and precise engineering design, high reliability is ensured in various surgical environments. This protection encompasses not only the overall structural form but also the specific connection methods and operating principles, ensuring the invention's uniqueness and market competitiveness in the medical device field.

[0051] The control cord mechanism effectively utilizes the mechanical properties of springs to ensure the stability and reliability of the locking mechanism under different conditions. The control cord design allows medical staff to easily and quickly adjust the locking mechanism, ensuring that the joint can be rapidly locked or unlocked when needed. The implementation of this control cord mechanism includes the specific structure of the locking mechanism, the configuration of the springs, and the connection method of the control cord, ensuring the functionality and practicality of the entire mechanism in practical applications, thereby improving the safety and efficiency of surgery.

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

Claims

1. A self-locking continuum structure for a flexible shaving instrument used in arthroscopic surgery, characterized in that, It includes multiple joint parts and latches. The multiple joint parts are connected in sequence by the latches. The lower end of each joint part is provided with two rotating wheels, and the upper end of each joint part is provided with wheel grooves. Mounting holes are provided on each joint part corresponding to the wheel grooves. In two adjacent joint parts, the two rotating wheels of one joint part are disposed in the wheel grooves of the other joint part and are connected by two latches. The latches are used to realize rotational locking between the two joint parts and to enable unidirectional rotation between the two connected joint parts. The latch is provided with a rope groove and also includes a control rope. The control rope passes through a hole provided in the wheel groove and goes around the rope groove to control the locking function of the latch. The latch is equipped with a key, which passes through a keyhole located behind the rotating wheel to lock the two joint parts. The joint components are in a first state and a second state under the action of the latch; in the first state, the latch is in an unlocked state under the action of the spring, which only restricts the movement between the two connected joint components, so that the two joint components can only achieve one degree of freedom of rotation; in the second state, the key passes through the keyhole behind the rotating wheel to form a lock between the two joint components.

2. The self-locking continuum structure for a flexible shaving instrument in arthroscopic surgery as described in claim 1, characterized in that, The latch is fitted inside the rotating wheel.

3. The self-locking continuum structure for a flexible shaving instrument in arthroscopic surgery as described in claim 1, characterized in that, The keyhole is provided with multiple slots.

4. The self-locking continuum structure for a flexible shaving instrument in arthroscopic surgery as described in claim 3, characterized in that, Multiple slots are evenly distributed, with an angle of 15 degrees between adjacent slots.

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