Denture dislodger
Patent Information
- Application Number
- CN202311130306.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-04
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2043-09-04
AI Technical Summary
[0005]为了克服现有假牙拆卸器不适用拆卸门牙且不舒适的缺点,本发明提供一种更加适用且舒适的假牙拆卸器
[0015]2、通过前后滑动调节滑动块,便于拆卸口腔内任意位置的假牙,在假牙上横向钻孔适用于所有的假牙,通过按动第一楔形块即可进行拔牙,操作新颖且拔牙力度可控。
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Figure CN117084815B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a disassembly device, and more particularly to a denture disassembly device. Background Technology
[0002] Dentures, also known as prostheses, need to be removed with the help of a denture remover when they are damaged, in order to reduce the patient's pain.
[0003] Patent CN211633656U discloses a convenient denture remover, including a support base, a removal screw, a sleeve, a second screw hole, a first screw hole, a denture base, a sponge pad, a ceramic-based composite coating, an electric telescopic rod, a fastening screw, an aluminum oxide coating, and a tungsten carbide coating. The electric telescopic rod is fixedly connected to both the left and right ends of the bottom of the support base, and the denture base is fixedly connected to the bottom of the electric telescopic rod. The first screw hole is opened in the middle of the inner surface of the support base, and the removal screw is threaded into the inner cavity of the first screw hole.
[0004] The aforementioned denture remover removes dentures by screwing a screw into the occlusal end face of the denture. However, this method is unsuitable for removing incisors, as their occlusal ends are narrow and difficult to drill. Furthermore, for internal dentures, the mouth needs to be opened very wide to insert the remover, and the vertical screwing into the occlusal end face also requires considerable discomfort. Therefore, a more suitable and comfortable denture remover needs to be designed. Summary of the Invention
[0005] In order to overcome the shortcomings of existing denture removers, such as being unsuitable for removing front teeth and being uncomfortable, this invention provides a more suitable and comfortable denture remover.
[0006] A denture remover includes a support plate, a handle, support rods, a fixing mechanism, and a removal mechanism. The handle is connected to the bottom right side of the support plate, and two support rods are connected between the support plate and the handle. The fixing mechanism is provided on the left side of the support plate, and the removal mechanism is provided between the handle and the fixing mechanism.
[0007] To further explain, the fixing mechanism includes a sliding block, a screw, a sliding plate, and a first spring. The left side of the support plate is slidably connected to the sliding block, the lower right side of the sliding block is slidably connected to the sliding plate, the middle of the sliding plate is threadedly connected to the screw, and the top of the sliding plate is connected to the sliding block with the first spring.
[0008] To further explain, the disassembly mechanism includes a first wedge block, a fixed rod, a second wedge block, a first pusher, a first pull rod, and a telescopic spring. The fixed rod is connected to the upper part of the handle, and the first wedge block is slidably connected between the fixed rod and the handle. The second wedge block is slidably connected to the upper part of the handle, and the first wedge block contacts the second wedge block. The first pusher is slidably connected to the support plate, and the right end face of the first pusher contacts the left end face of the second wedge block. The first pull rod is slidably connected to the right side of the sliding block, and the first pull rod passes through the first spring and connects to the top of the slide plate. The first pull rod contacts the first pusher, and a telescopic spring connects the first pusher and the support plate.
[0009] Further explanation: It also includes a clamping mechanism, which comprises a second spring, a second pusher, a third wedge block, a sliding column, a third spring, and a clamping plate. The second pusher is slidably connected to the screw, and the second pusher is tightly fitted to the screw. The second pusher moves to the left and contacts the right side of the sliding block. The right side of the screw is wrapped with a second spring, and the two ends of the second spring are respectively connected to the second pusher and the screw. The upper left side of both the front and rear sides of the sliding block is slidably connected to the third wedge block, and the upper right side of the third wedge block contacts the left side of the second pusher. The left side of the sliding block is slidably connected to the sliding column, and the lower right side of the third wedge block contacts the sliding column. The front and rear sides of the sliding column are connected to the sliding block with a third spring. The sliding column is slidably connected to the clamping plate, and the clamping plate is slidably connected to the sliding block.
[0010] Further explanation: It also includes a clamping mechanism, which includes a fixed frame, a clamping block, a fifth spring, a second pull rod, a sixth spring, a clamping rod, and a first torsion spring. The left side of both the front and rear sides of the sliding block is connected to the fixed frame. The middle of the fixed frame is slidably connected to the clamping block. The clamping block is wound with a fifth spring. The two ends of the fifth spring are connected to the fixed frame and the clamping block, respectively. The upper part of the sliding block is slidably connected to the second pull rod. The second pull rod is in contact with the first push frame. The lower part of the second pull rod is wound with a sixth spring. The two ends of the sixth spring are connected to the sliding block and the second pull rod, respectively. The lower part of the second pull rod is symmetrically rotated with clamping rods. The outer end face of each clamping rod is in contact with the bottom of the adjacent clamping block on the same side. The clamping rod is connected to the second pull rod with a first torsion spring. The spring constant of the first torsion spring is less than that of the fifth spring.
[0011] To further explain, it also includes a locking mechanism, which includes a locking plate, a fixing block, and a second torsion spring. Two fixing blocks are symmetrically connected on the left side of the bottom of the support plate. The left fixing block and the right fixing block are rotatably connected by locking plates. The fixing blocks are connected to the locking plates by a second torsion spring.
[0012] To further explain, it also includes a support mechanism, which includes a fixing screw, a support frame, and nuts. The fixing screw is connected through the left side of the support plate. The support frame is rotatably connected to both the front and rear sides of the fixing screw. Nuts are threadedly connected to both the front and rear sides of the fixing screw, and the nuts are all located on the outside of the support frame.
[0013] To further explain, the clamping mechanism also includes a fourth spring, which is connected between the right end of the slide column and the clamping plate.
[0014] The beneficial effects of the present invention are as follows: 1. By coordinating the fixing mechanism and the disassembly mechanism, it is not necessary to open the mouth too wide when removing dentures, thus improving the comfort of removing dentures.
[0015] 2. The sliding block can be adjusted by sliding back and forth, making it easy to remove dentures from any position in the mouth. Horizontal drilling on the denture is suitable for all types of dentures. Tooth extraction can be performed by pressing the first wedge block. The operation is novel and the extraction force is controllable.
[0016] 3. By squeezing the inside of the denture outward with a splint, the denture is pulled out upright, preventing it from tilting inward and thus avoiding affecting the subsequent longitudinal removal of the denture.
[0017] 4. During the process of the first pusher moving to the left, the first pusher will squeeze the second pull rod to move longitudinally, so that the clamping rod clamps the denture and assists the screw in removing the denture, which is convenient for removing the denture.
[0018] 5. Under the action of the second torsion spring, the clamping plate swings outward adaptively along the curvature of the dental arch, thereby fitting and clamping onto the inner and outer sides of the dental arch where the denture to be removed is located, which facilitates the rapid separation of the denture from the dental arch and avoids pulling on the dental arch during the removal of the denture by this remover.
[0019] 6. The support frame provides support for the entire disassembly device, so there is no need to hold the disassembly device continuously during the denture removal process, making the operation simple and labor-saving. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0021] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.
[0022] Figure 3 This is a three-dimensional structural diagram of the fixing mechanism of the present invention.
[0023] Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the fixing mechanism of the present invention.
[0024] Figure 5 This is a partial cross-sectional perspective view of the disassembly mechanism of the present invention.
[0025] Figure 6 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.
[0026] Figure 7This is a cross-sectional perspective view of the clamping mechanism of the present invention.
[0027] Figure 8 This is a three-dimensional structural diagram of the clamping and pulling mechanism of the present invention.
[0028] Figure 9 This is a cross-sectional perspective view of the clamping and pulling mechanism of the present invention.
[0029] Figure 10 This is a three-dimensional structural diagram of the clamping and pulling mechanism of the present invention.
[0030] Figure 11 This is a three-dimensional structural diagram of the positioning mechanism of the present invention.
[0031] Figure 12 This is a three-dimensional structural diagram of the support mechanism of the present invention.
[0032] The markings in the attached diagram are as follows: 1: Support plate, 2: Handle, 3: Support rod, 4: Fixing mechanism, 41: Sliding block, 42: Screw, 43: Slide plate, 44: First spring, 5: Disassembly mechanism, 51: First wedge block, 52: Fixing rod, 53: Second wedge block, 54: First push frame, 55: First pull rod, 56: Telescopic spring, 6: Clamping mechanism, 61: Second spring, 62: Second push frame, 63: Third wedge block, 64: Sliding column, 65: Third spring, 66: Clamping plate, 67: Fourth spring, 7: Clamping and pulling mechanism, 71: Fixing frame, 72: Clamping block, 73: Fifth spring, 74: Second pull rod, 75: Sixth spring, 76: Clamping rod, 77: First torsion spring, 8: Positioning mechanism, 81: Clamping plate, 82: Fixing block, 83: Second torsion spring, 9: Support mechanism, 91: Fixing screw, 92: Support frame, 93: Nut. Detailed Implementation
[0033] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.
[0034] Example 1
[0035] A denture remover, such as Figure 1 and Figure 2 As shown, it includes a support plate 1, a handle 2, a support rod 3, a fixing mechanism 4, and a disassembly mechanism 5. The handle 2 is connected to the bottom right side of the support plate 1, and both support rods 3 are connected between the support plate 1 and the handle 2. The fixing mechanism 4 is located on the left side of the support plate 1, and the disassembly mechanism 5 is located between the handle 2 and the fixing mechanism 4.
[0036] like Figure 1 , Figure 3 and Figure 4As shown, the sliding block 41, screw 42, slide plate 43 and first spring 44 constitute the fixing mechanism 4. The sliding block 41 is slidably connected to the left side of the support plate 1, the slide plate 43 is slidably connected to the lower right side of the sliding block 41, the screw 42 is threadedly connected to the middle of the slide plate 43, the screw 42 passes through the right side of the sliding block 41, and the first spring 44 is connected between the top of the slide plate 43 and the sliding block 41.
[0037] like Figure 1 and Figure 5 As shown, the first wedge block 51, the fixing rod 52, the second wedge block 53, the first pusher 54, the first pull rod 55, and the telescopic spring 56 constitute the disassembly mechanism 5. The fixing rod 52 is connected to the upper part of the handle 2. The first wedge block 51 is slidably connected between the fixing rod 52 and the handle 2. The second wedge block 53 is slidably connected to the upper part of the handle 2. The first wedge block 51 and the second wedge block 53 are in contact. The first pusher 54 is slidably connected to the support plate 1. The right end face of the first pusher 54 is in contact with the left end face of the second wedge block 53. The first pull rod 55 is slidably connected to the right part of the sliding block 41. The first pull rod 55 passes through the first spring 44 and is connected to the top of the slide plate 43. The first pull rod 55 is in contact with the first pusher 54. The telescopic spring 56 is connected between the first pusher 54 and the support plate 1.
[0038] When dentures need to be removed, a horizontal hole is pre-drilled on the outside of the denture to be removed using a hole punch. The placement of the disassembly device is determined according to the vertical position of the denture: if removing the lower denture, it is placed upright; if removing the upper denture, it is placed upside down. First, the person holds the left side of the support plate 1 in their mouth. According to the horizontal position of the denture to be removed in the oral cavity, the sliding block 41 is slid back and forth to adjust it so that the sliding block 41 clamps the inner and outer sides of the denture to be removed. Then, the screw 42 is turned inward so that the screw 42 is inserted into the pre-drilled hole in the denture. Next, the first wedge block 51 is moved to the right. When removing the lower denture, the first wedge block 51 presses the second wedge block 53 to move upward. When removing the upper denture, the first wedge block 51 presses the second wedge block 53 to move downward. The upward or downward movement of the second wedge block 53 will press the first pusher 54 to move to the left, deforming the telescopic spring 56, which in turn presses the first pull rod 55 upward or downward. The movement causes the slide plate 43 to move upward or downward, the first spring 44 to deform, and the slide plate 43 to pull the screw 42 out of the gum upward or downward. After the denture is removed, the left part of the support plate 1 is removed from the mouth, the first wedge block 51 is released, the telescopic spring 56 returns to its original position and causes the first pusher 54 to slide to the right. The first pusher 54 is pushed to the left by the second wedge block 53 and returns to its original position. The first spring 44 causes the slide plate 43 and the first pull rod 55 to return to their original position. After the denture is removed, the screw 42 is turned outward to disengage the screw 42 from the denture. In summary, by sliding the sliding block 41 back and forth, it is easy to remove dentures in any position in the oral cavity. Drilling holes horizontally on the denture is suitable for all dentures. The tooth can be extracted by pressing the first wedge block 51. The operation is novel and the extraction force is controllable. In addition, the above method of removing dentures does not require opening the mouth too wide, which improves the comfort of removing dentures.
[0039] Example 2
[0040] Based on Example 1, such as Figure 1 , Figure 6 and Figure 7As shown, it also includes a clamping mechanism 6, comprising a second spring 61, a second pusher 62, a third wedge block 63, a sliding column 64, a third spring 65, a clamping plate 66, and a fourth spring 67. The second pusher 62 is slidably connected to the screw 42, and the second pusher 62 is tightly fitted to the screw 42. The second pusher 62 moves to the left and contacts the right side of the sliding block 41. The second spring 61 is wrapped around the right side of the screw 42, and both ends of the second spring 61 are connected to the second pusher 62 and the screw 42, respectively. The third wedge block 63... The upper left side of the front and rear sides of the sliding block 41 is slidably connected. The upper right side surface of the third wedge block 63 is in contact with the left side surface of the second pusher 62. The sliding column 64 is slidably connected to the left side of the sliding block 41. The lower right side surface of the third wedge block 63 is in contact with the sliding column 64. The front and rear sides of the sliding column 64 are connected to the sliding block 41 by a third spring 65. The clamping plate 66 is slidably connected to the sliding column 64 and is slidably connected to the sliding block 41. The fourth spring 67 is connected between the right end of the sliding column 64 and the clamping plate 66.
[0041] The denture is prone to tilting inward due to the external force applied only by screw 42. To avoid affecting the subsequent longitudinal disassembly of the denture, the inner side of the denture is pressed outward by clamp 66, allowing the denture to be pulled out in the correct direction. Specifically, during the inward tightening of screw 42, screw 42 drives the second pusher 62 to move to the left via the second spring 61, thereby pressing the third wedge block 63 to move longitudinally, which in turn presses the slide column 64 to slide to the right. The third spring 65 deforms, and the slide column 64, via the fourth spring 67, drives the clamp 66 to elastically press the inner side of the denture outward. When the second pusher 62 moves to the left... When the moving part contacts the right side of the sliding block 41, the second pusher 62 stops moving, and the screw 42 continues to be turned inward, causing the screw 42 to slide relative to the second pusher 62, and the second spring 61 deforms. After the denture is pulled out and the screw 42 is turned outward, the second spring 61 returns to its original position, and the screw 42 drives the second pusher 62 to move to the right through the second spring 61. The third spring 65 returns to its original position and drives the sliding column 64 to slide to the left, thereby squeezing the third wedge block 63 to move in the opposite direction. The fourth spring 67 returns to its original position, and the sliding column 64 drives the clamp 66 to loosen the inner side of the denture through the fourth spring 67.
[0042] like Figure 1 , Figure 8 , Figure 9 and Figure 10As shown, it also includes a clamping mechanism 7, which consists of a fixed frame 71, a clamping block 72, a fifth spring 73, a second pull rod 74, a sixth spring 75, a clamping rod 76, and a first torsion spring 77. The fixed frame 71 is connected to the left side of both the front and rear sides of the sliding block 41. The clamping blocks 72 are slidably connected to the middle of the fixed frame 71. The fifth springs 73 are all wrapped around the clamping blocks 72, and the two ends of the fifth springs 73 are respectively connected to the fixed frame 71 and the clamping blocks 72. The second pull rod 74 is slidably connected to the sliding block 41 through it. At the upper part of the moving block 41, the second pull rod 74 contacts the first push frame 54, and the sixth spring 75 is wrapped around the lower part of the second pull rod 74. The two ends of the sixth spring 75 are respectively connected to the sliding block 41 and the second pull rod 74. The lower part of the second pull rod 74 is symmetrically and rotatably connected to the clamping rod 76. The outer end face of the clamping rod 76 is in contact with the bottom of the adjacent clamping block 72 on the same side. The first torsion spring 77 is connected between the clamping rod 76 and the second pull rod 74. The spring constant of the first torsion spring 77 is less than the spring constant of the fifth spring 73.
[0043] During the leftward movement of the first pusher 54, the screw 42 first pulls out a small portion of the denture. The first pusher 54 then compresses the second pull rod 74 to move longitudinally. The sixth spring 75 deforms and pulls the clamping rod 76 to move longitudinally. Under the compression of the clamping block 72, the clamping rod 76 swings inward to clamp the denture. The first torsion spring 77 deforms, and under the action of the fifth spring 73, the clamping block 72 maintains the state of pressing the clamping rod 76. This achieves the effect of clamping the denture with the clamping rod 76 and assisting the screw 42 in longitudinally disassembling the denture. During the rightward movement of the first pusher 54, the sixth spring 75 resets and drives the second pull rod 74 to move in the opposite direction, thereby driving the clamping rod 76 to move in the opposite direction. At the same time, the first torsion spring 77 resets and drives the clamping rod 76 to swing outward to open.
[0044] like Figure 1 and Figure 11 As shown, it also includes a locking mechanism 8, which consists of a locking plate 81, a fixing block 82, and a second torsion spring 83. The bottom left side of the support plate 1 is symmetrically connected to two fixing blocks 82 by screws. There are two locking plates 81, one of which is rotatably connected between the fixing blocks 82 on the left side, and the other is rotatably connected between the fixing blocks 82 on the right side. The second torsion spring 83 is connected between the fixing blocks 82 and the locking plates 81.
[0045] Under the action of the second torsion spring 83, the clamping plate 81 swings outward in accordance with the curvature of the dental arch, thereby fitting and clamping on the inner and outer sides of the dental arch where the denture to be removed is located. This facilitates the rapid separation of the denture from the dental arch and prevents the disassembly device from pulling on the dental arch during the process of removing the denture. When the clamping plate 81 is separated from the dental arch, the second torsion spring 83 drives the clamping plate 81 to swing inward and reset.
[0046] like Figure 1 and Figure 12As shown, it also includes a support mechanism 9, which consists of a fixing screw 91, a support frame 92, and a nut 93. The fixing screw 91 is connected through to the left side of the support plate 1. The support frame 92 is rotatably connected to the front and rear parts of the fixing screw 91. The nut 93 is threadedly connected to the front and rear parts of the fixing screw 91. The nuts 93 are all located on the outside of the support frame 92.
[0047] People loosen nut 93, then rotate support frame 92 downwards by 90 degrees to a vertical position, and tighten nut 93. The outer end of support frame 92 can then be placed on an external object, providing support for the entire disassembly device. In this way, it is not necessary to hold the disassembly device continuously during denture removal, making the operation simple and labor-saving. When not in use, loosen nut 93 again, rotate support frame 92 upwards by 90 degrees to a horizontal position to retract it, and tighten nut 93.
[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A denture remover, comprising a support plate (1), a handle (2), and support rods (3), wherein the handle (2) is connected to the bottom right side of the support plate (1), and two support rods (3) are connected between the support plate (1) and the handle (2), characterized in that: It also includes a fixing mechanism (4) and a disassembly mechanism (5). The left side of the support plate (1) is provided with a fixing mechanism (4), and the handle (2) is provided with a disassembly mechanism (5) between the fixing mechanism (4). The fixing mechanism (4) includes a sliding block (41), a screw (42), a sliding plate (43), and a first spring (44). The left side of the support plate (1) is slidably connected to the sliding block (41), the lower right side of the sliding block (41) is slidably connected to the sliding plate (43), the middle of the sliding plate (43) is threadedly connected to the screw (42), and the top of the sliding plate (43) is connected to the sliding block (41) with the first spring (44). The disassembly mechanism (5) includes a first wedge block (51), a fixing rod (52), a second wedge block (53), a first push frame (54), a first pull rod (55), and a telescopic spring (56). The upper part of the handle (2) is connected to the fixing rod (52). A first wedge block (51) is slidably connected between the fixed rod (52) and the handle (2). A second wedge block (53) is slidably connected to the upper part of the handle (2). The first wedge block (51) and the second wedge block (53) are in contact. A first pusher (54) is slidably connected to the support plate (1). The right end face of the first pusher (54) is in contact with the left end face of the second wedge block (53). A first pull rod (55) is slidably connected to the right side of the sliding block (41). The first pull rod (55) passes through the first spring (44) and is connected to the top of the slide plate (43). The first pull rod (55) is in contact with the first pusher (54). A telescopic spring (56) is connected between the first pusher (54) and the support plate (1).
2. The denture remover according to claim 1, characterized in that: Also includes There is a clamping mechanism (6), which includes a second spring (61), a second pusher (62), a third wedge block (63), a sliding column (64), a third spring (65), and a clamping plate (66). The second pusher (62) is slidably connected to the screw (42). The second pusher (62) is tightly fitted with the screw (42). The second pusher (62) moves to the left and contacts the right side of the sliding block (41). The right side of the screw (42) is wrapped with the second spring (61). The two ends of the second spring (61) are respectively connected to the second pusher (62) and the screw (42). The sliding block (41) is connected to the upper left side of both sides of the sliding block (41) in a sliding manner. The upper right side surface of the third wedge block (63) is in contact with the left side surface of the second pusher (62). The left side of the sliding block (41) is connected to the sliding column (64). The lower right side surface of the third wedge block (63) is in contact with the sliding column (64). The front and rear sides of the sliding column (64) are connected to the sliding block (41) in a third spring (65). The sliding column (64) is connected to the sliding plate (66) in a sliding manner. The clamp (66) is connected to the sliding block (41) in a sliding manner.
3. A denture remover according to claim 2, characterized in that: It also includes a clamping mechanism (7), which includes a fixed frame (71), a clamping block (72), a fifth spring (73), a second pull rod (74), a sixth spring (75), a clamping rod (76), and a first torsion spring (77). The left side of both the front and rear sides of the sliding block (41) is connected to the fixed frame (71), and the middle of the fixed frame (71) is slidably connected to the clamping block (72). The clamping block (72) is wound with the fifth spring (73), and the two ends of the fifth spring (73) are respectively connected to the fixed frame (71) and the clamping block (72). The upper part of the sliding block (41) is slidably connected through. There is a second pull rod (74), which is in contact with the first push frame (54). A sixth spring (75) is wound around the lower part of the second pull rod (74). The two ends of the sixth spring (75) are connected to the sliding block (41) and the second pull rod (74) respectively. A clamping rod (76) is symmetrically rotated at the lower part of the second pull rod (74). The outer end face of the clamping rod (76) is in contact with the bottom of the adjacent clamping block (72) on the same side. A first torsion spring (77) is connected between the clamping rod (76) and the second pull rod (74). The spring constant of the first torsion spring (77) is less than that of the fifth spring (73).
4. A denture remover according to claim 3, characterized in that: It also includes a locking mechanism (8), which includes a locking plate (81), a fixing block (82) and a second torsion spring (83). The bottom left side of the support plate (1) is symmetrically connected to two fixing blocks (82). The fixing blocks (82) on the left and right sides are rotatably connected to the locking plate (81), and the fixing blocks (82) are connected to the locking plate (81) by the second torsion spring (83).
5. A denture remover according to claim 4, characterized in that: It also includes a support mechanism (9), which includes a fixing screw (91), a support frame (92) and a nut (93). The left side of the support plate (1) is connected to the fixing screw (91) in a through manner. The front and rear parts of the fixing screw (91) are rotatably connected to the support frame (92). The front and rear parts of the fixing screw (91) are threadedly connected to the nut (93). The nuts (93) are all located outside the support frame (92).
6. A denture remover according to claim 5, characterized in that: The clamping mechanism (6) also includes a fourth spring (67), and the right end of the slide (64) is connected to the clamping plate (66) by the fourth spring (67).
Citation Information
Patent Citations
False tooth detacher convenient to use
CN211633656U
Small -size denture puller
CN208212091U
Removing apparatus of prosthetic appliance for dental clinic
KR101090175B1