Posture keeping device for subgingival scaling device
By designing a posture retention device for the grip sleeve and fixator, and utilizing the cooperation of the screw sleeve and the fastening block, the problem of cumbersome operation of existing posture retention devices is solved, enabling quick installation and removal, improving portability and stability, standardizing the grip posture, reducing the fatigue of medical staff, and improving treatment effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY)
- Filing Date
- 2025-04-07
- Publication Date
- 2026-04-21
AI Technical Summary
Existing attitude-holding devices require multiple bolts to be tightened and fixed to the scraper, which is cumbersome and inconvenient to use.
A posture-maintaining device including a grip sleeve and a retainer is designed. By cooperating with the screw sleeve and the fastening block, the handle of the scraper can be quickly clamped or released. A return spring and an anti-rotation component ensure a stable connection. The grip sleeve is provided with a thumb groove, an index finger groove and a middle finger groove to regulate the grip posture.
It enables quick installation and removal of the posture-maintaining device, reduces operating steps, improves portability and stability, standardizes the holding posture, reduces the fatigue of medical staff, and improves treatment effectiveness.
Smart Images

Figure CN224140985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a posture holding device for a subgingival curettage instrument. Background Technology
[0002] Tartar and plaque on the periodontium need to be scraped off with a scaling instrument. In dental surgery, subgingival scaling instruments are often used to remove tartar and subgingival plaque. In order to standardize the holding posture, existing technologies use posture retention devices to assist in holding the scaling instrument, thereby standardizing the posture of medical staff in holding the scaling instrument, reducing hand fatigue, and improving the removal effect of tartar and plaque on the patient's periodontium. However, existing posture retention devices require multiple bolts to be screwed on to fix the posture retention device to the scaling instrument, which is cumbersome and inconvenient to use. Utility Model Content
[0003] Based on the above analysis, the present invention aims to provide a posture holding device for a subgingival curette, in order to solve the problem that existing posture holding devices require fixing to the curette by screwing on multiple bolts, which is cumbersome and inconvenient to use.
[0004] The objective of this utility model is mainly achieved through the following technical solutions:
[0005] A posture holding device for a subgingival curette includes a grip sleeve and a retainer. The grip sleeve can be fixedly connected to curettes of different sizes via the retainer. The grip sleeve is provided with a first mounting groove and a second mounting groove. The retainer includes a rotating sleeve and a fastening block. The fastening block is installed in the second mounting groove and can move radially along the grip sleeve. The rotating sleeve is installed in the first mounting groove and can rotate about the axis of the grip sleeve. The rotating sleeve is connected to the fastening block, and rotating the rotating sleeve can drive the fastening block to move radially along the grip sleeve, thereby controlling the fastening block to quickly clamp or disengage from the handle of the curette.
[0006] Furthermore, the fixture also includes a return spring, one end of which is fixedly connected to the fastening block and the other end is fixedly connected to the second mounting groove. The return spring is used to provide elastic tension to the fastening block.
[0007] Furthermore, the sleeve is provided with a control block, which is in contact with the fastening block.
[0008] Furthermore, it also includes an anti-rotation component, which is installed in a third mounting groove on the grip sleeve, and the anti-rotation component is used to restrict the free rotation of the sleeve.
[0009] Furthermore, the sleeve is also provided with a limiting groove, and the limiting groove is provided with a first anti-rotation tooth.
[0010] Furthermore, the anti-rotation assembly includes an anti-rotation ring and a clamping spring.
[0011] Furthermore, one end of the anti-rotation ring is provided with a second anti-rotation tooth, which can mesh with the first anti-rotation tooth; one end of the clamping spring is fixedly connected to the other end of the anti-rotation ring, and the other end of the clamping spring is fixedly connected to the third mounting groove. The clamping spring can not only restrict the rotation of the anti-rotation ring, but also keep the second anti-rotation tooth meshing with the first anti-rotation tooth.
[0012] Furthermore, multiple fastening blocks are provided, and the multiple fastening blocks are evenly arranged around the circumference. By rotating the sleeve, the multiple fastening blocks can be driven to move radially along the holding sleeve simultaneously.
[0013] Furthermore, the grip sleeve is also provided with a first grip portion and a second grip portion. When the grip sleeve is fitted onto the scraper, the first grip portion is located at the handle of the scraper, and the second grip portion is located at the neck of the scraper.
[0014] Furthermore, the first gripping part is provided with a thumb groove and an index finger groove, the thumb groove being used to place the thumb of the medical staff when gripping, and the index finger groove being used to place the index finger of the medical staff when gripping; the second gripping part is provided with a middle finger groove, the middle finger groove being used to place the middle finger of the medical staff when gripping.
[0015] The technical solution of this utility model can achieve at least one of the following effects:
[0016] (1) This utility model provides a posture holding device for a subgingival curette, comprising a grip sleeve and a retainer. The grip sleeve can be fixedly connected to curettes of different specifications via the retainer. The grip sleeve is provided with a first mounting groove and a second mounting groove. The retainer comprises a rotating sleeve and a fastening block. The fastening block is installed in the second mounting groove and can move radially along the grip sleeve. The rotating sleeve is installed in the first mounting groove and can rotate about the axis of the grip sleeve. The rotating sleeve is connected to the fastening block. Rotating the rotating sleeve can drive the fastening block to move radially along the grip sleeve, thereby controlling the fastening block to quickly clamp or disengage from the handle of the curette. This enables the posture holding device to be quickly installed on or removed from the curette, improving the portability of the posture holding device.
[0017] (2) The grip sleeve of this utility model is further provided with a first grip part and a second grip part. When the grip sleeve is fitted onto the scraper, the first grip part is located at the handle of the scraper, and the second grip part is located at the neck of the scraper. The first grip part is provided with a thumb groove and an index finger groove. The thumb groove is used to place the thumb of the medical staff when gripping, and the index finger groove is used to place the index finger of the medical staff when gripping. The second grip part is provided with a middle finger groove. The middle finger groove is used to place the middle finger of the medical staff when gripping. When the medical staff uses the posture maintenance device to grip the scraper, the posture of the medical staff holding the scraper can be standardized by placing the thumb in the thumb groove, the index finger in the index finger groove, and the middle finger in the middle finger groove, so as to maintain the correct grip posture, reduce the hand fatigue that the medical staff easily experience when gripping the scraper for a long time, reduce the adverse effects on the operation, and improve the treatment effect.
[0018] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description
[0019] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.
[0020] Figure 1 This is a schematic diagram of the posture holding device according to an embodiment of the present utility model;
[0021] Figure 2 This is an exploded view of the attitude-maintaining device according to an embodiment of the present invention;
[0022] Figure 3 This is one of the cross-sectional views of the grip sleeve according to an embodiment of the present utility model;
[0023] Figure 4 This is a cross-sectional view of the screw sleeve according to an embodiment of the present utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the grip sleeve according to an embodiment of the present utility model;
[0025] Figure 6 This is a second cross-sectional view of the grip sleeve according to an embodiment of the present utility model.
[0026] Figure label:
[0027] 1. Grip sleeve; 11. First mounting groove; 12. Second mounting groove; 13. Third mounting groove; 14. First grip part; 141. Thumb groove; 142. Index finger groove; 15. Second grip part; 151. Middle finger groove; 2. Fixing device; 21. Rotating sleeve; 211. Control block; 212. Limit groove; 22. Fastening pressure block; 23. Return spring; 3. Anti-rotation assembly; 31. Anti-rotation ring; 32. Tightening spring. Detailed Implementation
[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.
[0029] Example 1
[0030] In one specific embodiment of this utility model, a posture-maintaining device for a subgingival curette is disclosed, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device includes a grip sleeve 1 and a retainer 2. The grip sleeve 1 can be fitted onto scrapers of different sizes and is used to standardize the posture of medical personnel holding the scraper to maintain proper grip. The retainer 2 is installed on the grip sleeve 1 and is used to quickly and securely connect the grip sleeve 1 to scrapers of different sizes. The grip sleeve 1 has a first mounting groove 11 and a second mounting groove 12. The retainer 2 includes a rotating sleeve 21 and a fastening block 22. The fastening block 22 is installed on... The second mounting groove 12 is located within the first mounting groove 11 and can move radially along the grip sleeve 1. The rotating sleeve 21 is installed within the first mounting groove 11 and can rotate about the axis of the grip sleeve 1. The rotating sleeve 21 is connected to the fastening block 22. Rotating the rotating sleeve 21 can drive the fastening block 22 to move radially along the grip sleeve 1, thereby controlling the fastening block 22 to quickly clamp or disengage from the handle of the scraper. This allows the posture holding device to be quickly installed on or removed from the scraper, improving the portability of the posture holding device.
[0031] Preferably, multiple fastening blocks 22 are provided, and the multiple fastening blocks 22 are evenly arranged around the circumference. The multiple fastening blocks 22 can be driven to move radially along the holding sleeve 1 simultaneously by the rotating sleeve 21. This not only allows them to quickly clamp or disengage from the handle of the scraper at the same time, but also allows them to be positioned so that the axis of the scraper handle is coaxial with the axis of the posture maintaining device, thereby ensuring the standardization of the posture of medical staff in holding the scraper and maintaining the accuracy of the scraper use.
[0032] Preferably, the retainer 2 further includes a return spring 23, one end of which is fixedly connected to the fastening block 22 and the other end is fixedly connected to the second mounting groove 12. The return spring 23 is used to provide elastic tension to the fastening block 22. When the sleeve 21 is rotated in the opposite direction to remove the pressure applied to the fastening block 22, the elastic tension of the return spring 23 will cause the fastening block 22 to move away from the axis of the holding sleeve 1, thereby restoring the fastening block 22 to its initial position, quickly releasing the clamping of the scraper, and thus quickly separating the posture holding device from the scraper, improving the portability of the posture holding device.
[0033] Preferably, such as Figure 4 As shown, the rotating sleeve 21 is provided with a control block 211, which contacts the fastening pressure block 22. The control block 211 has an arc-shaped structure, so that the fastening pressure block 22 can be driven to move radially along the holding sleeve 1 by rotating the rotating sleeve 21, thereby quickly fixing the posture holding device on the scraper. The operation is simple and convenient.
[0034] Preferably, the grip sleeve 1 is further provided with a third mounting groove 13.
[0035] Preferably, the posture holding device further includes an anti-rotation component 3, which is installed in the third mounting groove 13 to limit the free rotation of the sleeve 21, that is, to prevent the sleeve 21 from rotating freely without the application of external force, thereby keeping the posture holding device stably fixed on the scraper and preventing the posture holding device from automatically slipping off the scraper, thus improving the safety of use.
[0036] Preferably, the sleeve 21 is further provided with a limiting groove 212, and the limiting groove 212 is provided with a first anti-rotation tooth (not shown in the figure).
[0037] Preferably, the anti-rotation assembly 3 includes an anti-rotation ring 31 and a clamping spring 32. One end of the anti-rotation ring 31 is provided with a second anti-rotation tooth, which can mesh with a first anti-rotation tooth. One end of the clamping spring 32 is fixedly connected to the other end of the anti-rotation ring 31, and the other end of the clamping spring 32 is fixedly connected to a third mounting groove 13. The clamping spring 32 can not only restrict the rotation of the anti-rotation ring 31, but also keep the second anti-rotation tooth meshing with the first anti-rotation tooth, thereby restricting the free rotation of the sleeve 21, maintaining the stability of the posture holding device fixed on the scraper, preventing the posture holding device from automatically slipping off the scraper, and improving the safety of use.
[0038] Preferably, such as Figure 5As shown, the grip sleeve 1 is further provided with a first grip portion 14 and a second grip portion 15. When the grip sleeve 1 is fitted onto the scraper, the first grip portion 14 is located at the handle of the scraper, and the second grip portion 15 is located at the neck of the scraper. The first grip portion 14 is provided with a thumb groove 141 and an index finger groove 142. The thumb groove 141 is used to place the thumb of the medical staff when gripping, and the index finger groove 142 is used to place the index finger of the medical staff when gripping. The second grip portion 15 is provided with... The middle finger groove 151 is used to place the middle finger of medical personnel when holding the scraper. When medical personnel use the posture maintenance device to hold the scraper, the posture of holding the scraper can be standardized by placing the thumb in the thumb groove 141, the index finger in the index finger groove 142, and the middle finger in the middle finger groove 151. This helps maintain a correct grip posture, reduces hand fatigue that medical personnel may experience when holding the scraper for a long time, reduces adverse effects on operation, and improves treatment results.
[0039] Preferably, such as Figure 6 As shown, the thumb groove 141, index finger groove 142, and middle finger groove 151 are arranged in a circular pattern. The thumb groove 141 is located near the second gripping part 15, and the index finger groove 142 is located away from the second gripping part 15. When medical personnel use the posture-maintaining device to hold the scraper, by placing the thumb in the thumb groove 141, the index finger in the index finger groove 142, and the middle finger in the middle finger groove 151, the thumb, index finger, and middle finger form a triangular force point. This not only enhances the stability of the grip but also enables finger positioning. It standardizes the posture of medical personnel holding the scraper, maintains the correct grip posture, reduces hand fatigue that medical personnel may experience when holding the scraper for a long time, reduces adverse effects on operation, and improves treatment effectiveness.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A posture holding device for subgingival curettes, characterized by, It includes a gripping sleeve (1) and a retainer (2), wherein the gripping sleeve (1) can be fixedly connected to scrapers of different sizes via the retainer (2); The gripping sleeve (1) is provided with a first mounting groove (11) and a second mounting groove (12); The retainer (2) includes a rotating sleeve (21) and a fastening block (22). The fastening block (22) is installed in the second mounting groove (12) and can move radially along the gripping sleeve (1). The rotating sleeve (21) is installed in the first mounting groove (11) and can rotate about the axis of the gripping sleeve (1). The rotating sleeve (21) is connected to the fastening block (22). Rotating the rotating sleeve (21) can drive the fastening block (22) to move radially along the gripping sleeve (1), thereby controlling the fastening block (22) to quickly clamp or disengage from the handle of the scraper.
2. A posture holding device for subgingival curettage according to claim 1, wherein The fixture (2) also includes a return spring (23), one end of which is fixedly connected to the fastening block (22) and the other end is fixedly connected to the second mounting groove (12). The return spring (23) is used to provide elastic tension to the fastening block (22).
3. A posture holding device for subgingival curettage according to claim 2, wherein The sleeve (21) is provided with a control block (211), which is in contact with the fastening block (22).
4. A posture holding device for subgingival curettage according to claim 3, wherein It also includes an anti-rotation component (3), which is installed in a third mounting groove (13) on the grip sleeve (1) and is used to restrict the free rotation of the sleeve (21).
5. A posture holding device for subgingival curettage according to claim 4, wherein The sleeve (21) is also provided with a limiting groove (212), and the limiting groove (212) is provided with a first anti-rotation tooth.
6. A posture holding device for subgingival curettage according to claim 5, wherein The anti-rotation assembly (3) includes an anti-rotation ring (31) and a clamping spring (32).
7. A posture holding device for subgingival curettage according to claim 6, wherein One end of the anti-rotation ring (31) is provided with a second anti-rotation tooth, which can mesh with the first anti-rotation tooth; one end of the clamping spring (32) is fixedly connected to the other end of the anti-rotation ring (31), and the other end of the clamping spring (32) is fixedly connected to the third mounting groove (13). The clamping spring (32) can not only restrict the rotation of the anti-rotation ring (31), but also keep the second anti-rotation tooth meshing with the first anti-rotation tooth.
8. A posture holding device for subgingival curettage according to claim 7, wherein Multiple fastening blocks (22) are provided, and the multiple fastening blocks (22) are evenly arranged around the circumference. The multiple fastening blocks (22) can be driven to move radially along the holding sleeve (1) simultaneously by the rotating sleeve (21).
9. A posture holding device for subgingival curettage according to claim 8, wherein The grip sleeve (1) is also provided with a first grip portion (14) and a second grip portion (15). When the grip sleeve (1) is fitted onto the scraper, the first grip portion (14) is located at the handle of the scraper, and the second grip portion (15) is located at the neck of the scraper.
10. A posture holding device for subgingival curettage according to claim 9, wherein The first gripping part (14) is provided with a thumb groove (141) and an index finger groove (142). The thumb groove (141) is used to place the thumb of the medical staff when gripping, and the index finger groove (142) is used to place the index finger of the medical staff when gripping. The second gripping part (15) is provided with a middle finger groove (151). The middle finger groove (151) is used to place the middle finger of the medical staff when gripping.