Reciprocating grinding head handle and bone removing device thereof

CN224792381UActive Publication Date: 2026-09-25ANHUI PROVINCIAL HOSPITAL
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Patent Information

Application Number
CN202520274084.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-09-25
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

这些振动不仅会降低手术的精度,还可能对手术部位造成不必要的损伤,从而影响到手术的安全性和患者的康复

Benefits of technology

[0015]1.本申请通过空间凸轮与抵触销相连接,巧妙地实现了内滑动环的平稳且可控的往复运动,不仅增强了磨头运动的稳定性和可预测性,有效降低了因运动不平稳而产生的震动和噪声,优化了手术环境,还提升了操作人员的舒适度和手感,使手术过程更加流畅,该机制减少了手术过程中的误操作风险,为医生提供了更为精准、安全的手术控制,进一步保障了患者的手术安全和治疗效果。

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Abstract

The utility model discloses a reciprocating grinding head handle and its bone removing device, including motion subassembly, motion subassembly includes space cam, bearing, the bearing sleeve is connected in motion subassembly outside, inner sliding component, inner sliding component includes inner sliding ring, the one end of inner sliding ring is provided with the resistance to touch pin close to bearing, space cam is connected with resistance to touch pin, through the cooperation of space cam and resistance to touch pin, not only makes the stable and controllable reciprocating motion of inner sliding ring, also has guaranteed the stability and controllability of grinding head when operating, has reduced vibration and noise level significantly, has brought tranquil and stability for the surgical environment, also, has improved the comfortable feeling of operating personnel greatly, has reduced the possible misoperation risk in the surgical process, thereby has guaranteed the safety and precision of surgical process.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a reciprocating grinding head handle and its bone removal device. Background Technology

[0002] In osteotomy, the performance of the electric flat file is indeed a key factor affecting surgical efficiency and safety. As an important tool in surgery, the design and performance of the electric flat file directly affect the smooth progress of the operation and the patient's recovery. Currently, electric flat files mostly adopt an eccentric linkage structure. This design principle is that it can effectively convert the rotational motion of the motor into the reciprocating linear motion of the flat file, thereby realizing the osteotomy operation. The eccentric linkage structure, through the cooperation of the connecting rod and the eccentric wheel, enables the rotational motion to be converted into the required linear motion. However, although the eccentric linkage structure is widely used in electric flat files, it also has some drawbacks that cannot be ignored. First, the relative complexity of this structure increases the cost of manufacturing and maintenance. Second, during the conversion of rotational motion into linear motion, the interaction between the connecting rod and the eccentric wheel can easily generate large vibrations. These vibrations not only reduce the precision of the surgery but may also cause unnecessary damage to the surgical site, thus affecting the safety of the surgery and the patient's recovery.

[0003] Therefore, how to reduce vibration and improve surgical precision and safety while ensuring the performance of electric flat file has become an important direction in the research and development of osteotomy surgical tools. Some novel design concepts and material applications are being continuously explored and tested in order to achieve breakthroughs in the performance of electric flat files and provide more efficient and safer solutions for osteotomy surgery. Utility Model Content

[0004] To solve or partially solve the above problems, this application provides a reciprocating grinding head handle and its deboning device, comprising: a motion component including a spatial cam; a bearing sleeved on the outside of the motion component; and an inner sliding component including an inner sliding ring, wherein an abutment pin is provided on one end of the inner sliding ring near the bearing, and the spatial cam is connected to the abutment pin to complete the reciprocating motion of the inner sliding ring.

[0005] The reciprocating grinding head handle and its deboning device provided in this application further include: a module mounting groove, wherein the bearing is located inside the module mounting groove.

[0006] This application provides a reciprocating grinding head handle and its deboning device: the module mounting groove further includes a drive module and an elastic sealing ring, the drive module includes an outer fixing ring and a support structure, the outer fixing ring and the support structure are integrally formed, and an elastic sealing ring is provided between the bearing and the outer fixing ring.

[0007] This application provides a reciprocating grinding head handle and its deboning device: the inner sliding component is provided inside the outer fixing ring, and a positioning pin is provided on the side of the outer fixing ring, the positioning pin being connected to the inner sliding component.

[0008] This application provides a reciprocating grinding head handle and its deboning device: the motion component further includes a motor fork, which is connected to the spatial cam and is used to drive the spatial cam to rotate.

[0009] This application provides a reciprocating grinding head handle and its deboning device: the inner sliding assembly further includes a spring and a connecting tube, the end of the inner sliding ring away from the abutment pin is connected to the connecting tube, the spring is sleeved on the end of the connecting tube near the inner sliding ring and connected to the inner sliding ring, for stabilizing the reciprocating motion of the inner sliding ring.

[0010] This application provides a reciprocating grinding head handle and its deboning device: the side of the inner sliding ring is provided with a first positioning groove, which is used to cooperate with the positioning pin to complete the positioning.

[0011] The present application provides a reciprocating grinding head handle and its deboning device: the elastic sealing ring is provided with sealing bosses on both the inner and outer sides to prevent liquid from flowing out of the handle.

[0012] This application provides a reciprocating grinding head handle and its deboning device: the spatial cam is provided with a spatial cam groove, and the spatial cam groove is provided with a mounting groove near the high point for applying abutment pressure to the abutment pin.

[0013] The present application provides a reciprocating grinding head handle and its deboning device: it further includes a handle, one end of which is provided with a water connection pipe, and the other end of which is provided with an insertion part. The handle is provided with an insertion part mounting hole and a module mounting groove inside, and the insertion part mounting hole is provided with a second positioning groove for connecting with the insertion part.

[0014] Beneficial effects:

[0015] 1. This application cleverly achieves smooth and controllable reciprocating motion of the inner sliding ring by connecting a spatial cam with an abutting pin. This not only enhances the stability and predictability of the grinding head's motion and effectively reduces vibration and noise caused by unstable motion, thus optimizing the surgical environment, but also improves the operator's comfort and feel, making the surgical process smoother. This mechanism reduces the risk of misoperation during surgery, provides doctors with more precise and safe surgical control, and further ensures the patient's surgical safety and treatment effect.

[0016] 2. The elastic sealing ring has sealing bosses on both the inside and outside to prevent liquids that may be generated during the operation from leaking to the outside of the handle, thereby ensuring a dry and clean surgical environment and the durability of the surgical instruments.

[0017] 3. This application also ensures the tightness and sealing of the device by using the combination of springs and elastic sealing rings, thereby improving its practicality. It also makes the device easier to disassemble and maintain, allowing for easy cleaning and better operation. This prevents the device from degrading or being damaged due to prolonged use or improper cleaning. At the same time, it can extend the service life of the equipment and improve the reliability and stability of the device operation. Attached Figure Description

[0018] Figure 1 A partial exploded view of a reciprocating grinding head handle and its deboning device provided in this application embodiment:

[0019] Figure 2 A schematic diagram of the inside of the handle of a reciprocating grinding head handle and its deboning device provided in this application embodiment:

[0020] Figure 3 A partially enlarged view of a reciprocating grinding head handle and its deboning device provided in an embodiment of this application;

[0021] Figure 4 A schematic diagram of a reciprocating grinding head handle and its deboning device provided in this application embodiment;

[0022] 1. Module mounting slot; 10. Drive module; 11. Elastic sealing ring; 111. Sealing boss; 12. Bearing;

[0023] 2. Motion assembly; 21. Spatial cam; 211. Spatial cam groove; 2111. Mounting groove; 22. Motor fork

[0024] 3. Outer retaining ring; 31. Inner sliding assembly; 311. Inner sliding ring; 3111. First positioning groove; 3112. Abutting pin; 312. Spring; 313. Connecting pipe; 32. Positioning pin;

[0025] 4. Supporting structure;

[0026] 5. Handle; 51. Insertion mounting hole; 511. Second positioning groove;

[0027] 6. Water connection pipe; 7. Insertion part. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] To address the aforementioned problems, the applicant has proposed a reciprocating grinding head handle and its deboning device. Please see [link to relevant documentation]. Figure 1 , Figure 1 A partial exploded view of a reciprocating grinding head handle and its deboning device provided in this application embodiment; the reciprocating grinding head handle and its deboning device include: a motion component 2, a bearing 12, and an inner sliding component 31.

[0030] The motion component 2 may include a spatial cam 21, and the bearing 12 may be sleeved on the outside of the motion component 2. The inner sliding component 31 may include an inner sliding ring 311, and an abutment pin 3112 is provided on the inner sliding ring 311. The spatial cam 21 is connected to the abutment pin 3112 to complete the reciprocating motion of the inner sliding ring 311.

[0031] The above-mentioned components can be connected to the contact pin 3112 via the spatial cam 21, which ingeniously realizes the smooth and controllable reciprocating motion of the inner sliding ring 311. This not only enhances the stability and predictability of the grinding head's motion and effectively reduces vibration and noise caused by unstable motion, thus optimizing the surgical environment, but also improves the operator's comfort and feel, making the surgical process smoother. This mechanism reduces the risk of misoperation during the surgical process, provides doctors with more precise and safe surgical control, and further ensures the patient's surgical safety and treatment effect.

[0032] In this embodiment, a module mounting slot 1 may also be included, in which a bearing 12 is installed. The bearing 12 not only ensures smooth rotation but also improves the stability and durability of the overall structure. A motion component 2 is also installed on the bearing 12, which provides strong power support and ensures that the module can operate accurately and efficiently under various complex conditions.

[0033] See Figure 2 As shown, Figure 2This is an internal schematic diagram of a reciprocating grinding head handle and its deboning device provided in an embodiment of this application. To further improve overall performance, the module mounting slot 1 may also include a drive module 10 and an elastic sealing ring 11. The drive module 10 consists of an outer retaining ring 3 and a support structure 4. The outer retaining ring 3 can be integrated with the support structure 4, which not only simplifies the installation process but also enhances the structural stability. An elastic sealing ring 11 is also provided between the end face near the bearing 12 and the outer retaining ring 3 inside the module mounting slot 1. The elastic sealing ring 11 can prevent dust, moisture, and other impurities from entering, keeping the internal environment clean, and can also alleviate the impact caused by vibration to a certain extent, extending the service life of the module.

[0034] To prevent potential fluid leakage from the handle 5 during surgery, the elastic sealing ring 11 features sealing bosses 111 both internally and externally, providing double protection. The presence of sealing bosses 111 on both the inside and outside not only improves the cleanliness and dryness of the surgical environment, providing doctors with safer and more reliable surgical conditions, but also effectively extends the lifespan of surgical instruments, ensuring their durability and laying a solid foundation for the smooth progress of surgery.

[0035] Additionally, see Figure 1 , Figure 1 This is a partial exploded view of a reciprocating grinding head handle and its deboning device provided in an embodiment of this application. An inner sliding component 31 may be provided inside the outer fixed ring 3. The inner sliding component 31 may also include a spring 312 and a connecting tube 313. The end of the inner sliding ring 311 away from the abutment pin 3112 is connected to the connecting tube 313, so that the two can work together and slide smoothly. Due to its own elasticity, the spring 312 is sleeved on the end of the connecting tube 313 near the inner sliding ring 311 and is tightly connected to the inner sliding ring 311. The elasticity of the spring 312 can provide the necessary stabilizing force and buffering effect for the reciprocating motion of the inner sliding ring 311, ensuring that it can respond flexibly and maintain smooth and controllable movement during operation. The precise cooperation of the entire inner sliding component 31 not only improves the performance and reliability of the entire device, but also enables it to exhibit better adaptability and durability in complex situations.

[0036] Furthermore, a positioning pin 32 can be added to the side of the outer fixed ring 3. The positioning pin 32 can perfectly cooperate with the first positioning grooves 3111 on both sides of the inner sliding ring 311 with extremely high precision, thereby achieving a tight and stable positioning between the two. This design is not only meticulous but also highly effective: it ensures that the inner sliding ring 311 always travels along the accurate trajectory during reciprocating motion, avoiding any unnecessary offset or shaking. This tight positioning not only enhances the stability of the entire structure, enabling the module mounting groove 1 to exhibit excellent stability and durability in various complex working conditions, but also improves the overall performance of the device, providing a strong guarantee for its reliability and durability in practical applications.

[0037] The motion component 2 may also include a motor fork 22. The motor fork 22 is not only structurally robust, but also connected to the spatial cam 21. Through the efficient drive of the motor fork 22, the spatial cam 21 can be rotated stably and powerfully. This design not only enhances the driving force and stability of the motion component 2, but also ensures the accuracy and reliability of the spatial cam 21 during rotation, adding new impetus to the performance improvement of the entire module mounting slot 1, enabling it to cope with various complex situations with ease.

[0038] refer to Figure 3 , Figure 3 This is a partially enlarged view of a reciprocating grinding head handle and its deboning device provided in an embodiment of this application. The spatial cam 21 may be provided with a spatial cam groove 211, and the inner sliding ring 311 is provided with an abutment pin 3112 that cooperates with the spatial cam groove 211. When the spatial cam 21 rotates under the drive of the motor fork, the spatial cam groove 211 on it will interact with the abutment pin 3112, thereby accurately driving the inner sliding ring 311 to reciprocate. This design not only ensures the stability and accuracy of the movement of the inner sliding ring 311, but also greatly improves the dynamic performance and response speed of the entire module mounting slot 1.

[0039] Meanwhile, a mounting groove 2111 is provided at the high point near the end of the spatial cam 21, which facilitates installation and ensures the stability of the structure. When the spatial cam 21 rotates, the spatial cam groove 211 at the high point near the end provides stable abutment pressure to the abutment pin 3112 through the upper side of the spatial cam 21, thereby achieving a tight fit between the two. The elastic characteristics of the spring 312 also ensure the stability and reliability of the fit between the abutment pin 3112 and the spatial cam 21 during rotation, and also improve installation efficiency, further enhancing the durability and practicality of the entire module mounting groove 1.

[0040] refer to Figure 2 , Figure 4 , Figure 2A schematic diagram of the internal structure of a reciprocating grinding head handle and its deboning device provided in this application embodiment. Figure 4 This is a schematic diagram of a reciprocating grinding head handle and its deboning device provided in an embodiment of this application. The reciprocating grinding head handle and its deboning device may further include a handle 5 for easy gripping and connection to the drive motor and water circuit. One end of the handle 5 is provided with a water circuit connection pipe 6. The handle 5 has an insertion part mounting hole 51 and a module mounting groove 1 inside. The upper end of the insertion part mounting hole 51 is provided with a second positioning groove 511 to ensure precise connection of the insertion part 7. The insertion part 7 is located at the distal end of the handle 5, and the reciprocating deboning device is located at the distal end of the insertion part 5. This design significantly improves the functionality and practicality of the entire device.

[0041] In use: The rotary motor drives the front fork 22 to rotate, which in turn drives the spatial cam 21 to start rotating. As the spatial cam 21 continues to rotate, the groove of the spatial cam 211 drives the abutment pin 3112 to move accordingly, thereby realizing the reciprocating motion mechanism of the inner sliding ring 311. It should be noted that when the abutment pin 3112 is located at the highest point of the spatial cam 21, the spring 312 uses its inherent elastic potential energy to apply an upward force to the inner sliding ring 311 to ensure that the abutment pin 3112 is always located in the groove of the spatial cam 41 when passing through the mounting groove 2111.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reciprocating grinding head handle and its deboning device, characterized in that, include, Motion component, the motion component including a spatial cam; A bearing, which is sleeved on the outside of the moving component; An inner sliding assembly includes an inner sliding ring, and an abutment pin is provided on one end of the inner sliding ring near the bearing. The spatial cam is connected to the abutment pin to complete the reciprocating motion of the inner sliding ring.

2. The reciprocating grinding head handle and its deboning device according to claim 1, characterized in that, Also includes: Module mounting slot, the bearing is located inside the module mounting slot.

3. The reciprocating grinding head handle and its deboning device according to claim 2, characterized in that, The module mounting slot also includes a drive module and an elastic sealing ring. The drive module includes an outer retaining ring and a support structure. The outer retaining ring and the support structure are integrally formed. An elastic sealing ring is provided between the bearing and the outer retaining ring.

4. The reciprocating grinding head handle and its deboning device according to claim 3, characterized in that, The inner sliding component is disposed inside the outer fixed ring, and a positioning pin is disposed on the side of the outer fixed ring, the positioning pin being connected to the inner sliding component.

5. The reciprocating grinding head handle and its deboning device according to claim 1, characterized in that, The motion component also includes a motor fork, which is connected to the spatial cam and is used to drive the spatial cam to rotate.

6. The reciprocating grinding head handle and its deboning device according to claim 1, characterized in that, The inner sliding assembly also includes a spring and a connecting tube. The end of the inner sliding ring away from the abutment pin is connected to the connecting tube. The spring is sleeved on the end of the connecting tube near the inner sliding ring and connected to the inner sliding ring to stabilize the reciprocating motion of the inner sliding ring.

7. The reciprocating grinding head handle and its deboning device according to claim 4, characterized in that, The inner sliding ring has a first positioning groove on its side, which is used to cooperate with the positioning pin to complete the positioning.

8. The reciprocating grinding head handle and its deboning device according to claim 3, characterized in that, The elastic sealing ring has sealing bosses on both the inside and outside to prevent liquid from flowing out of the handle.

9. A reciprocating grinding head handle and its deboning device according to claim 1, characterized in that, The spatial cam is provided with a spatial cam groove, and a mounting groove is provided near the highest point of the spatial cam groove to provide abutment pressure to the abutment pin.

10. A reciprocating grinding head handle and its deboning device according to claim 1, characterized in that, It also includes a handle, one end of which is provided with a water connection pipe, and the other end of which is provided with an insertion part. The handle is provided with an insertion part mounting hole and a module mounting groove inside. The insertion part mounting hole is provided with a second positioning groove for connecting with the insertion part.