Tool for fixing check screw by gathering stopper

Abstract

The utility model relates to a retaining device fixing check screw tool which comprises a bottom plate and a clamping jig detachably installed on one side of the bottom plate, and the clamping jig comprises a square jig block. The center of the square jig block extends outwards to be provided with a columnar deformation part. A conformal clamping part is arranged on the columnar deformation part; when the fixed non-return screw is inserted into the tail end of the columnar deformation part, the conformal clamping part is solidified to clamp the fixed non-return screw under the action of an external electric field, and then the columnar deformation part is locked to be fixed in the radial direction to guarantee the clamping stability. The device has the advantages of reasonable structure, practical function, simplicity and convenience in operation, high precision, good stability and the like.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tooling technology for medical device processing, specifically a tooling for fixing anti-return screws of a stopper. Background Technology

[0002] In the installation of medical bone surgery and related instruments, the precise fixation and reliable clamping of the anti-return screw for the stop device are crucial to ensuring the stability of the process. Traditional fixation fixtures may suffer from problems such as insecure clamping, inability to accommodate screws of different sizes, inconvenience in operation, and difficulty in achieving precise control. These problems not only affect the efficiency and quality of the surgery.

[0003] Therefore, designing a highly efficient, precise, and stable tooling specifically for fixing anti-return screws in medical bone retainers has significant clinical implications and application value. Summary of the Invention

[0004] The purpose of this utility model is to provide a fixture for fixing the anti-return screw of the stop device, which has the advantages of reasonable structure, practical function, simple operation, high precision and good stability, so as to solve the above-mentioned technical problems.

[0005] To achieve the above technical solution, the technical solution of this utility model is as follows: The fixture for fixing the anti-return screw mainly includes a base plate and a clamping fixture detachably mounted on one side of the base plate. The base plate provides a stable support foundation for the entire fixture, and the clamping fixture is used to clamp and fix the anti-return screw to meet the needs of medical bone-related operations.

[0006] Furthermore, the square fixture block of the clamping jig has a columnar deformation section extending outward from its center, and a conformal clamping part is provided on the columnar deformation section. When the fixing anti-return screw is inserted into the end of the columnar deformation section, under the action of an external electric field, the conformal clamping part can solidify and clamp the fixing anti-return screw, thereby achieving precise fixing and reliable clamping of the screw.

[0007] Furthermore, the columnar deformation section has deformation grooves parallel to its axial direction. The function of these grooves is to facilitate deformation of the columnar deformation section under external forces (bolt tightening), thereby achieving conformal clamping of the screw. The columnar deformation section also has a through-hole in the radial direction, perpendicular to the deformation grooves. This locking hole can be used to install other auxiliary components or to further fix and adjust the columnar deformation section by inserting pins, ensuring its stability and reliability during operation.

[0008] Furthermore, the deformation groove has a width of 1 mm and a distance of 3.5 mm from the axis of the columnar deformation section. These dimensional parameters are carefully designed to ensure that the columnar deformation section can deform smoothly under external force while meeting the requirements for structural strength and screw clamping. Appropriate deformation groove width and position allow the columnar deformation section to maintain sufficient strength and stability while deforming, ensuring effective clamping and fixation of the screw.

[0009] Furthermore, the conformal clamping part includes a hollow insulating bag filled with electrorheological fluid, and electrodes inserted inside the bag. When an external electric field is applied, the viscosity of the electrorheological fluid changes drastically, transforming from a liquid to a solid state, thereby clamping the anti-return screw. This conformal clamping method based on electrorheological fluid has the advantages of fast response and precise control of clamping force. By adjusting the strength and direction of the electric field, the clamping force can be automatically adjusted according to the size and shape of the screw, achieving a tight fit and secure fixation while avoiding damage to the screw.

[0010] Furthermore, one electrode can secure the anti-return screw itself to the stopper. This design cleverly utilizes the screw's conductivity, reducing the need for additional electrodes, simplifying the tooling structure, and improving clamping efficiency and accuracy. When an electric field is applied to the screw, the electrorheological fluid creates a solidified clamping force between the screw and other electrodes, firmly fixing the screw to the end of the columnar deformation section.

[0011] Furthermore, the base plate array is equipped with second locking holes. These locking holes can be used to securely connect the base plate to other equipment or work platforms, ensuring the stability and safety of the fixture during use. Different locking hole positions and combinations allow for easy adjustment of the fixture's installation position and angle to adapt to different working environments and operational requirements. The locking holes in the array also facilitate the expansion and upgrading of the fixture; for example, other auxiliary devices or accessories can be installed on the base plate as needed.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1) Conformal clamping and precise control improve fixation effect:

[0014] The design of the columnar deformation section and the conformal clamping section enables conformal clamping of the anti-return screw for fixation of medical bone anchors. When the screw is inserted into the end of the columnar deformation section, the electrorheological fluid in the conformal clamping section solidifies under the action of an electric field, automatically adjusting the clamping force according to the shape and size of the screw to achieve a tight fit and secure fixation. This conformal clamping method can greatly improve the fixation effect of the screw, ensuring that the screw will not loosen or shift during medical operations, thereby improving the success rate of surgery and the stability of the instrument.

[0015] Electric field-controlled clamping offers the advantage of precise control, allowing for accurate adjustment of the clamping force's magnitude and direction by modifying the electric field parameters. This enables the fixture to accommodate screws of different sizes and materials, providing appropriate clamping force and preventing damage to the screws or bone due to excessive or insufficient clamping force, thus improving the safety and reliability of the procedure.

[0016] 2) Simple structure and easy operation improve work efficiency:

[0017] The fixture has a relatively simple structural design, mainly consisting of a base plate and a clamping jig. The columnar deformation part and the conformal clamping part in the clamping jig are also not complex. This simple structure makes it easy for operators to understand and operate, enabling them to quickly complete the clamping and fixing of screws, thus improving the efficiency of machining.

[0018] The ease of operation is reflected in the fact that clamping and loosening screws can be achieved simply by switching and adjusting the parameters of the electric field control device, without the need for complex mechanical adjustments or manual operation. This not only reduces the skill requirements and workload of operators, but also reduces operation time and improves the efficiency and smoothness of machining.

[0019] 3) Disassembly and versatility facilitate use and maintenance:

[0020] The clamping fixture and base plate are detachably connected, making the tooling more convenient to use and maintain. This design allows for separate cleaning, replacement, or repair of the clamping fixture without affecting the use of the base plate. Furthermore, the detachable design facilitates the replacement of different types of clamping fixtures according to different surgical needs or screw specifications, improving the tooling's versatility and flexibility.

[0021] The base plate features an array of locking holes, providing multiple options for the installation and fixation of the tooling, enabling it to adapt to different working environments and equipment requirements. This highly versatile design allows the tooling to be widely used in various medical scenarios, enhancing its value and practicality.

[0022] 4) Excellent stability and reliability ensure safe medical procedures:

[0023] During operation, the tooling provides excellent stability thanks to the stable support of the base plate and the rational design of the clamping fixture. The locking holes of the columnar deformation section and appropriate structural strength ensure that no accidental deformation or loosening occurs during screw clamping. The electrorheological liquid curing clamping method of the conformal clamping section provides reliable clamping force and can withstand various external force interferences during medical operations.

[0024] In summary, this fixture for fixing anti-return screws has advantages such as reasonable structure, practical function, simple operation, high precision, and good stability. It can effectively meet the needs of fixing and clamping anti-return screws in medical bone surgery and related operations, and provide a reliable guarantee for improving medical quality and surgical safety. Attached Figure Description

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] Figure 1 A 3D drawing of the fixture for fixing the anti-return screw to the stopper;

[0027] Figure 2 Front view of the fixture for fixing the anti-return screw to the stopper. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Please see the appendix Figures 1 to 2 As shown: A fixture for fixing a stop screw for a stopper includes a base plate 1 and a clamping fixture 2 detachably mounted on one side of the base plate 1. The clamping fixture 2 includes a square fixture block 21; the square fixture block 21 has a columnar deformation part 22 extending outward from the center; the columnar deformation part 22 has a conformal clamping part 23.

[0031] Wherein: when the fixed anti-return screw is inserted into the end of the columnar deformation part 22, the conformal clamping part 23 is solidified under the action of an external electric field to clamp the fixed anti-return screw, and then the columnar deformation part 22 is radially fixed to ensure clamping stability.

[0032] In this embodiment, the design of the columnar deformation section and the conformal clamping section enables conformal clamping of the anti-return screw for the medical bone fixation device. When the screw is inserted into the end of the columnar deformation section, the electrorheological fluid in the conformal clamping section solidifies under the action of an electric field, automatically adjusting the clamping force according to the shape and size of the screw to achieve a tight fit and secure fixation. This conformal clamping method can greatly improve the fixation effect of the screw, ensuring that the screw will not loosen or shift during medical operations, thereby improving the success rate of surgery and the stability of the instrument.

[0033] Based on the above embodiments, the columnar deformation part 22 is provided with a deformation groove 221 parallel to the axial direction; the columnar deformation part 22 is provided with a through locking hole 222 in the radial direction; the locking hole 222 is perpendicular to the deformation groove 221.

[0034] Based on the above embodiments, the width of the deformation groove 221 is 1 mm; the distance between the deformation groove 221 and the axis of the columnar deformation part 22 is 3.5 mm.

[0035] Based on the above embodiments, the conformal clamping part 23 includes a hollow insulating bag; the inner side of the insulating bag is filled with electrorheological fluid; and an electrode is inserted into the inner side of the insulating bag.

[0036] Based on the above embodiments, one of the electrodes can be used to fix the anti-return screw of the stopper.

[0037] Based on the above embodiments, the base plate 1 array is provided with a second locking hole 11.

[0038] During assembly, the clamping fixture is detachably mounted on one side of the base plate using a suitable connection method, ensuring secure installation and accurate positioning. Inspect the square fixture block, columnar deformation section, and conformal clamping section for damage. Install the insulating bag of the conformal clamping section onto the columnar deformation section, ensuring the electrodes are correctly inserted into the insulating bag. Connect the electrodes to the electric field control device, ensuring correct and stable circuit connections. Insert appropriate bolts or other fasteners (if needed) into the locking holes of the columnar deformation section to initially fix and adjust it to a suitable working state. Debug the electric field control device, setting appropriate electric field parameters such as electric field strength and frequency. By applying an electric field, observe the state change of the electrorheological fluid in the conformal clamping section, checking whether it can normally transition from liquid to solid state to achieve the clamping function for the simulated screw specimen. Adjust the electric field parameters and measure the clamping force of the conformal clamping section on the screw under different electric field strengths to establish the correspondence between electric field strength and clamping force. Based on actual needs, determine a suitable range of electric field parameters to ensure sufficient and appropriate clamping force during actual use. Finally, install the fixture onto a medical operating table or other work platform via the array of second locking holes on the base plate, and secure the base plate firmly using bolts or other fixing devices. Adjust the position and angle of the fixture according to the requirements of the surgical procedure or processing technology to ensure the convenience and accuracy of fixing the anti-return screw during installation. During processing, carefully insert the medical bone constrictor anti-return screw into the end of the cylindrical deformable part of the clamping fixture, ensuring full contact with the conformal clamping part. During insertion, pay attention to the direction and position of the screw to ensure it accurately enters the predetermined position. Activate the electric field control device to apply an electric field to the conformal clamping part. Under the action of the electric field, the electrorheological fluid in the insulating bag rapidly solidifies, clamping the anti-return screw. Observe the clamping state of the screw to ensure it is firm and uniform, without damaging the screw. During clamping, the electric field strength can be fine-tuned according to the actual situation to obtain the best clamping effect. After the screw is clamped, corresponding machining operations can be performed. During operation, closely monitor the fixture's working status to ensure the screw's position remains stable. If fine-tuning of the screw's position is necessary, carefully adjust the screw's position while appropriately reducing the electric field strength, then restore the electric field strength to ensure the screw remains firmly clamped. After machining is complete, turn off the electric field control device; the electrorheological fluid in the conformal clamping part will return to a liquid state, releasing the screw's clamping force. Carefully remove the anti-return screw from the fixture, taking care to avoid damaging the screw and the fixture.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments by making some changes or modifications to the above-disclosed technical content without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A fixture for fixing a stopper and a return screw, comprising a base plate (1) and a clamping jig (2) detachably mounted on one side of the base plate (1), characterized in that, The clamping fixture (2) includes a square fixture block (21); the square fixture block (21) has a columnar deformation part (22) extending outward from the center; the columnar deformation part (22) has a conformal clamping part (23); When the fixed anti-return screw is inserted into the end of the columnar deformable part (22), the conformal clamping part (23) is solidified under the action of an external electric field to clamp the fixed anti-return screw.

2. The fixture for fixing the anti-return screw of the stopper as described in claim 1, characterized in that: The columnar deformation part (22) is provided with a deformation groove (221) parallel to the axial direction; the columnar deformation part (22) is provided with a through locking hole (222) in the radial direction; the locking hole (222) is perpendicular to the deformation groove (221).

3. The fixture for fixing the anti-return screw of the stopper as described in claim 2, characterized in that: The width of the deformation groove (221) is 1 mm; the distance between the deformation groove (221) and the axis of the columnar deformation part (22) is 3.5 mm.

4. The fixture for fixing the anti-return screw of the stopper as described in claim 1, characterized in that: The conformal clamping part (23) includes a hollow insulating bag; the inner side of the insulating bag is filled with electrorheological fluid; and an electrode is inserted into the inner side of the insulating bag.

5. The fixture for fixing the anti-return screw of the stopper as described in claim 4, characterized in that: One of the electrodes is a stopper that secures a return screw.

6. The fixture for fixing the anti-return screw of the stopper as described in claim 1, characterized in that: The base plate (1) array is provided with a second locking hole (11).

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