Clamping device for mouth rehabilitation

Abstract

The invention relates to the technical field of medical instruments, in particular to a clamping device for dental restoration, which comprises a support handle for clamping a metal crown, and a plurality of magnetic blocks for adsorbing the metal crown are in sliding fit with the support handle; a clamping assembly used for assisting in fixing the metal crown is arranged on the supporting handle. A detection space is formed in the magnetic attraction block, a spraying pipe used for spraying cooling liquid is communicated with the interior of the detection space, the spraying pipe is located at the top of the supporting handle, and a cooling mechanism used for controlling the flow of the cooling liquid in the spraying pipe is further arranged in the detection space; the automatic cooling device is used for improving the stability in the metal crown clamping process and meanwhile achieving automatic cooling in the grinding process.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a clamping device for oral restoration. Background Art

[0002] In dentistry, metal crowns are a traditional tooth restoration material. Due to their high strength and wear resistance, they are often used for tooth restoration of posterior teeth or large-area defective teeth to restore tooth function and maintain tooth health.

[0003] Traditional metal crowns are made by embedding casting, so the castings need to be cleaned, ground and polished to make their surfaces smooth and flat. Modern metal crowns are formed by computer-aided design, cutting or laser sintering. The surface of the metal crown after production also needs to be ground and polished to make its surface smooth and flat. During the grinding and polishing process, hands or holders are often used for clamping. However, since the metal crowns are irregular in shape and have smooth surfaces, the metal crowns and the holders are prone to sliding when external forces come into contact, resulting in insufficient stability. At the same time, during the grinding process, due to the characteristics of metal materials, heat cannot be dissipated in time, and the grinding needs to be paused or stopped, affecting the workflow. Therefore, the present invention provides a clamping device for oral restoration, which improves the stability of the metal crown during the clamping process and realizes automatic cooling during the grinding process. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a clamping device for oral restoration, which is used to improve the stability of the metal crown during the clamping process and realize automatic cooling during the grinding process.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a clamping device for oral restoration, comprising a support handle for clamping a metal crown, the support handle being slidably matched with a magnetic suction block for adsorbing a plurality of metal crowns; a clamping assembly for assisting in fixing the metal crown is provided on the support handle;

[0006] A detection space is opened in the magnetic suction block, and a spray pipe for spraying coolant is connected in the detection space. The spray pipe is located at the top of the support handle. A cooling mechanism for controlling the flow rate of coolant in the spray pipe is also provided in the detection space.

[0007] The technical principle of the above scheme is as follows: during the clamping and installation of the metal crown, the metal crown is adsorbed by a magnetic block, and then the support handle is placed on the teeth on both sides to achieve the placement, clamping and alignment of the metal crown, and then the clamping assembly is used for auxiliary support to improve stability. During the grinding process of the metal crown, the metal crown is clamped and fixed by a magnetic block and the clamping assembly, and the coolant is continuously sprayed through the spray pipe to exchange the heat generated during the processing of the metal crown. At the same time, the coolant flow is adjusted by the cooling mechanism to adapt to the heat changes during the grinding process of the metal crown.

[0008] The above scheme has the following beneficial effects:

[0009] 1. This solution uses dual fixation and clamping of magnetic blocks and snap-fit ​​components to ensure the stability of the metal crown during support, so as to keep the position of the metal crown unchanged.

[0010] 2. In this scheme, during the clamping process of the metal crown, the support handle can be used to first determine the installation position of the metal crown to provide an indication, so as to facilitate the subsequent direct engagement and alignment of the metal crown, and then the coolant is sprayed through the ejection pipe for continuous flow flushing to reduce the temperature rise change of the metal crown.

[0011] 3. Compared with the prior art, this solution uses a fitted magnetic block to detect the heat during the grinding process of the metal crown, so as to adjust the flow rate of the coolant sprayed from the spray pipe through a cooling mechanism to keep the metal crown at an appropriate temperature and improve the patient's comfort.

[0012] Furthermore, the support handle includes a first clamping rod and a second clamping rod, and arc-shaped placement rods are fixedly connected to both sides of the first clamping rod and the second clamping rod;

[0013] An arc block is fixedly connected at the center of the first clamping rod and the second clamping rod. The magnetic blocks are located on both sides of the arc block, and the magnetic blocks are slidably matched with the arc block.

[0014] Beneficial effect: The first clamping rod and the second clamping rod are placed on the teeth on both sides of the pre-processed metal crown to keep the arc block at the center fixed to the metal crown unchanged, thereby improving the stability of the metal crown during clamping.

[0015] Furthermore, the clamping assembly includes an extension block fixedly connected to the arc block, a clamping block is slidably matched in the extension block and the arc block, and a second spring support is provided between the bottom of the clamping block and the extension block;

[0016] The ejection pipes are located on both sides of the clamping block. The arc block is provided with positioning holes. Positioning pins are slidably matched in the positioning holes. The positioning pins are against the clamping block.

[0017] Beneficial effect: When the metal crown is located in the middle of the adjacent arc-shaped blocks, it is selected whether to extend the extension block according to the processing requirements of the metal crown. When the extension block needs to be extended, the positioning pin in the positioning hole is taken out, and the elastic force of the compression spring is used to push the clamping block to extend and clamp the surface of the metal crown to form a triangular support, thereby improving the clamping stability of the metal crown.

[0018] Furthermore, a deformable rubber layer is provided on the top of the clamping block.

[0019] Beneficial effects: The deformable rubber layer is used to reduce the impact force of the clamping block on the metal crown, so as to improve the stability of the metal crown clamping. At the same time, the deformable rubber layer is used to increase the support area of ​​the subsequent clamping block, so as to further improve the stability of the metal crown clamping.

[0020] Furthermore, the surface of the magnetic block is arc-shaped, the cooling mechanism includes a bimetallic strip located in the detection space, the bimetallic strip and the surface of the magnetic block are parallel to each other, and the thermal expansion coefficient of the bottom of the bimetallic strip is greater than the thermal expansion coefficient of the top of the bimetallic strip;

[0021] An extrusion tube is arranged in the detection space, and the extrusion tube is located between the bimetallic strip and the magnetic attraction block; both ends of the extrusion tube are connected with liquid inlet tubes, and the liquid inlet tube is vertically connected with the ejection tube.

[0022] Beneficial effect: When the bimetallic strip is deformed accordingly due to the heat generated during the grinding process of the metal crown, the thermal expansion coefficient of the bottom of the bimetallic strip is greater than that of the top of the bimetallic strip, so that the bimetallic strip is deformed upward, squeezing the extrusion tube to close it, thereby adjusting the direction of the coolant in the liquid inlet tube to flow toward the extrusion tube and the outlet tube, thereby adjusting the coolant flow rate to continuously cool the metal crown.

[0023] Furthermore, placement grooves are provided on both sides of the bottom of the placement rod, and the placement grooves are fully matched with the first clamping rod and the second clamping rod.

[0024] Beneficial effect: The placement groove is fully matched with the first clamping rod and the second clamping rod, so as to facilitate the disassembly and replacement of the placement rod, the first clamping rod and the second clamping rod, and the placement rod can be replaced according to the width of the tooth, thereby facilitating the tooth engagement.

[0025] Furthermore, a plurality of support blocks are slidably matched on the first clamping rod and the second clamping rod, and the support blocks are located between the adjacent first clamping rods and the second clamping rods; an ejector rod is slidably matched inside the first clamping rod and the second clamping rod, and a plurality of hidden grooves corresponding to the support blocks are opened on the ejector rod, and matching blocks are slidably matched in the hidden grooves, and the matching blocks are fixedly connected to the support blocks;

[0026] The ejector rod is symmetrically arranged with the magnetic attraction block as the center, and a first spring is provided at one end of the ejector rod away from the magnetic attraction block;

[0027] When the ejector rod abuts against the magnetic block, the matching block is located in the hidden groove; when the ejector rod is separated from the magnetic block, the matching block abuts against the ejector rod.

[0028] Beneficial effect: The ejection rod is limited by the magnetic block to keep the support block hidden in the hidden groove; when the magnetic block extends out due to its own magnetic force and contact with the metal block, the compressed first spring of the ejection rod closes toward the center, and the ejection rod slides to support and fix the bottom of the magnetic block, thereby improving the stability of the magnetic block during the clamping process. At the same time, the ejection support block is pressed against the tooth surface to further provide the first clamping rod and the second clamping rod with stability in clamping the metal crown.

[0029] Furthermore, one end of the liquid inlet pipe away from the magnetic attraction block passes through the first clamping rod and the second clamping rod.

[0030] Beneficial effect: Through the liquid inlet pipe that runs through the first clamping rod and the second clamping rod, it is convenient to connect to the outside through the liquid inlet pipe to transport coolant. At the same time, by pulling the liquid inlet pipe to drive the magnetic block to reset to loosen the clamping of the magnetic block on the metal crown, and by the magnetic block pushing the ejection rod to reset to loosen the support for the support block, it is convenient to remove the device as a whole.

[0031] Furthermore, the first clamping rod and the second clamping rod are made of transparent rubber material.

[0032] Beneficial effect: The transparent rubber material is used to improve light transmittance, thereby reducing light obstruction during subsequent light irradiation inspection, thereby making it easier for doctors (technicians) to conduct inspections.

[0033] Furthermore, a groove is formed on the top of the extension block, and a mounting groove is formed on each of the extension blocks, wherein a baffle is clamped in the mounting groove.

[0034] Beneficial effect: The baffle forms support and provides processing space, preventing the surrounding facial tissue from being repositioned, making oral repair easier.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an axonometric view of an embodiment of a clamping device for oral restoration of the present invention;

[0037] Figure 2 A top view of an embodiment of a clamping device for oral restoration according to the present invention;

[0038] Figure 3 for Figure 2 Schematic diagram of the cross section in the AA direction;

[0039] Figure 4 A side view of an embodiment of a clamping device for oral restoration according to the present invention;

[0040] Figure 5 for Figure 4 Schematic diagram of the cross section in the BB direction;

[0041] Figure 6 for Figure 5 A magnified schematic diagram of part A in the figure.

[0042] The figure marks in the drawings of the specification include: 1. first clamping rod; 11. support block; 12. extension block; 13. ejector rod; 14. first spring; 15. matching block; 2. second clamping rod; 3. placement rod; 4. magnetic block; 41. bimetallic strip; 42. liquid inlet pipe; 43. extrusion pipe; 5. clamping block; 51. ejection pipe; 52. second spring; 53. positioning hole. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The following is further described in detail through specific implementation methods:

[0047] Embodiment 1:

[0048] As attached Figures 1 to 6 As shown: A clamping device for oral restoration includes a support handle for clamping a metal crown, the support handle includes a first clamping rod 1 and a second clamping rod 2, the first clamping rod 1 and the second clamping rod 2 are made of transparent rubber material, and arc-shaped placement rods 3 are fixedly connected on both sides of the first clamping rod 1 and the second clamping rod 2; an arc-shaped block is integrally formed at the center of the first clamping rod 1 and the second clamping rod 2, and magnetic blocks 4 are slidably fitted on both sides of the arc-shaped block.

[0049] The support handle is provided with a clamping assembly for assisting in fixing the metal crown; the clamping assembly includes an extension block 12 integrally formed with the arc block, the extension block 12 and the arc block are slidably fitted with a clamping block 5, the side of the clamping block 5 close to the extension block 12 is lower than the side of the clamping block 5 away from the extension block 12, and a deformable rubber layer is provided on the top of the clamping block 5; a second spring 52 is provided between the bottom of the clamping block 5 and the extension block 12 for support; a positioning hole 53 is opened on the arc block, a positioning pin (not shown in the figure) is slidably fitted in the positioning hole 53, and the positioning pin is abutted against the clamping block 5.

[0050] The surface of the magnetic block 4 is arc-shaped, and a detection space (not shown in the figure) is opened in the magnetic block 4. The detection space is connected to a spray pipe 51 for spraying coolant. In this embodiment, the coolant is physiological saline. The spray pipe 51 is located on both sides of the clamping block 5. A cooling mechanism for controlling the flow rate of the coolant inside the spray pipe 51 is also provided in the detection space.

[0051] The cooling mechanism includes a bimetallic strip 41 located in the detection space, the surfaces of the bimetallic strip 41 and the magnetic block 4 are parallel to each other, and the thermal expansion coefficient of the bottom of the bimetallic strip 41 is greater than the thermal expansion coefficient of the top of the bimetallic strip 41; an extrusion tube 43 is provided in the detection space, the extrusion tube 43 is located between the bimetallic strip 41 and the magnetic block 4, and the extrusion tube 43 is located on the side of the magnetic block 4 close to the clamping block 5; both ends of the extrusion tube 43 are connected with a liquid inlet pipe 42, and the liquid inlet pipe 42 is vertically connected to the discharge pipe 51; the end of the liquid inlet pipe 42 away from the magnetic block 4 passes through the first clamping rod 1 and the second clamping rod 2.

[0052] The specific implementation process is as follows: when the metal crown needs to be clamped and installed, the first clamping rod 1 and the second clamping rod 2 are engaged with the teeth on both sides of the metal crown to be installed, and the placement rod 3 is placed on the occlusal surface of the tooth, so that the arc blocks at the center of the first clamping rod 1 and the second clamping rod 2 are aligned with the position of the tooth to be installed, and the extension length of the magnetic block 4 is adjusted based on the patient's tooth width to align with the surface of the tooth to be installed, and then the adjusted first clamping rod 1 and the second clamping rod 2 are taken out, and the metal crown is clamped and fixed by adjusting the aligned magnetic block 4.

[0053] After the magnetic block 4 and the metal crown are attached, the positioning pin in the positioning hole 53 is taken out, and the elastic force of the compression spring is used to push the clamping block 5 to extend and clamp the surface of the metal crown to form a triangular support to improve the clamping stability of the metal crown. The deformable rubber layer is used to reduce the impact force of the clamping block 5 on the metal crown to improve the clamping stability of the metal crown. At the same time, the deformable rubber layer is used to increase the support area of ​​the subsequent clamping block 5, further improving the clamping stability of the metal crown, so that the subsequent metal crown can be fixed on the tooth to be installed.

[0054] When the metal crown needs to be clamped and polished, after the contact and fixation are completed by the magnetic block 4, the first clamping rod 1 and the second clamping rod 2, it is selected whether to extend the extension block 12 according to the processing needs of the metal crown to reduce the processing obstacles that may be caused by the extension block 12, and the coolant is pumped into the outlet pipe 51 through the liquid inlet pipe 42 to connect to the external liquid supply component (such as a water pump, etc.).

[0055] During the grinding process of the metal crown, when the bimetallic strip 41 is deformed accordingly due to the heat during the grinding process of the metal crown, the thermal expansion coefficient of the bottom of the bimetallic strip 41 is greater than the thermal expansion coefficient of the top of the bimetallic strip 41, so that the bimetallic strip 41 is deformed upward, and the extrusion tube 43 is squeezed and closed. Due to the increase in the pressure in the extrusion tube 43, the coolant from the liquid inlet tube 42 flowing to the coolant in the extrusion tube 43 is reduced, and most of the coolant flows to the ejection tube 51, thereby adjusting the coolant flow rate of the ejection tube 51. When the bimetallic strip 41 is in a normal deformation state, the extrusion tube 43 is connected inside, so that the coolant in the liquid inlet tube 42 flows to the extrusion tube 43 and the ejection tube 51 respectively, realizing diversion to reduce the coolant flowing out of the ejection tube 51, and continuously cooling the metal crown.

[0056] After the metal crown is installed, the magnetic block 4 is driven to reset by pulling the liquid inlet tube 42 to release the clamping of the magnetic block 4 on the metal crown, thereby facilitating the removal of the entire device.

[0057] Embodiment 2:

[0058] The difference from the first embodiment is that, in another embodiment, placement grooves are provided on both sides of the bottom of the placement rod 3 , and the placement grooves are fully matched with the first clamping rod 1 and the second clamping rod 2 .

[0059] The specific implementation process is as follows: during the pre-installation process of the first clamping rod 1 and the second clamping rod 2, the placement groove is fully matched with the first clamping rod 1 and the second clamping rod 2, so as to facilitate the disassembly and replacement of the placement rod 3, the first clamping rod 1 and the second clamping rod 2. By replacing the placement rod 3 with different placement groove spacings, the placement rod 3 can be replaced according to the width of the tooth, so as to facilitate the tooth engagement.

[0060] Embodiment 3:

[0061] The difference from Example 2 lies in that a plurality of support blocks 11 are slidably fitted on the first clamping rod 1 and the second clamping rod 2, and the support blocks 11 are located between the adjacent first clamping rods 1 and the second clamping rods 2; an ejector rod 13 is slidably fitted inside the first clamping rod 1 and the second clamping rod 2, and a plurality of hidden grooves corresponding to the support blocks 11 are formed on the ejector rod 13, and matching blocks 15 are slidably fitted in the hidden grooves, and the matching blocks 15 are integrally formed with the support blocks 11.

[0062] The ejection rod 13 is symmetrically arranged with the magnetic block 4 as the center, and a first spring 14 is provided at one end of the ejection rod 13 away from the magnetic block 4; when the ejection rod 13 abuts against the magnetic block 4, the matching block 15 is located in the hidden groove; when the ejection rod 13 is separated from the magnetic block 4, the matching block 15 abuts against the ejection rod 13.

[0063] The specific implementation process is as follows: when the magnetic block 4 is in the normal state, the magnetic block 4 limits the ejection rod 13 to keep the support block 11 hidden in the hidden groove; when the magnetic block 4 extends out due to its own magnetic force and contact with the metal block, the compressed first spring 14 of the ejection rod 13 closes toward the center, and the ejection rod 13 slides to support and fix the bottom of the magnetic block 4, thereby improving the stability of the magnetic block 4 during the clamping process. Then, through the sliding of the ejection rod 13, the matching block 15 is misaligned with the hidden groove on the ejection rod 13, so that the ejection rod 13 and the matching block 15 are abutted, and then the support block 11 is abutted against the tooth surface, so as to further provide the stability of the first clamping rod 1 and the second clamping rod 2 to clamp the metal crown.

[0064] Embodiment 4:

[0065] The difference from the third embodiment is that a groove is formed on the top of the extension block 12, and a mounting groove is formed on the extension block 12, and a baffle (not shown in the figure) is clamped in the mounting groove.

[0066] The specific implementation process is as follows: the baffle is used to form support to provide processing space, prevent the surrounding facial tissues from being repositioned, and facilitate oral restoration.

[0067] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A clamping device for oral restoration, comprising a support handle for clamping a metal crown, wherein the support handle is slidably fitted with a plurality of magnetic blocks (4) for adsorbing the metal crowns; characterized in that: The support handle is provided with a snap-fit ​​assembly for assisting in fixing the metal crown; A detection space is provided in the magnetic attraction block (4), and a spray pipe (51) for spraying cooling liquid is connected in the detection space. The spray pipe (51) is located at the top of the support handle, and a cooling mechanism for controlling the flow rate of cooling liquid in the spray pipe (51) is also provided in the detection space.

2. The clamping device for oral restoration according to claim 1, characterized in that: The support handle comprises a first clamping rod (1) and a second clamping rod (2), and arc-shaped placement rods (3) are fixedly connected to both sides of the first clamping rod (1) and the second clamping rod (2); An arc block is fixedly connected at the center of the first clamping rod (1) and the second clamping rod (2), and the magnetic blocks (4) are located on both sides of the arc block. The magnetic blocks (4) are slidably matched with the arc blocks.

3. The clamping device for oral restoration according to claim 2, characterized in that: The clamping assembly comprises an extension block (12) fixedly connected to the arc block, a clamping block (5) is slidably matched inside the extension block (12) and the arc block, and a second spring (52) is provided between the bottom of the clamping block (5) and the extension block (12) for support; The ejection pipe (51) is located on both sides of the clamping block (5). A positioning hole (53) is opened on the arc block. A positioning pin is slidably fitted in the positioning hole (53), and the positioning pin abuts against the clamping block (5).

4. The clamping device for oral restoration according to claim 3, characterized in that: A deformable rubber layer is provided on the top of the clamping block (5).

5. The clamping device for oral restoration according to claim 4, characterized in that: The surface of the magnetic attraction block (4) is arc-shaped, and the cooling mechanism comprises a bimetallic strip (41) located in the detection space, the bimetallic strip (41) and the surface of the magnetic attraction block (4) are parallel to each other, and the thermal expansion coefficient of the bottom of the bimetallic strip (41) is greater than the thermal expansion coefficient of the top of the bimetallic strip (41); An extrusion tube (43) is provided in the detection space, and the extrusion tube (43) is located between the bimetallic strip (41) and the magnetic attraction block (4); both ends of the extrusion tube (43) are connected to a liquid inlet tube (42), and the liquid inlet tube (42) is vertically connected to the ejection tube (51).

6. The clamping device for oral restoration according to claim 5, characterized in that: The bottom of the placement rod (3) is provided with placement grooves on both sides, and the placement grooves are fully matched with the first clamping rod (1) and the second clamping rod (2).

7. The clamping device for oral restoration according to claim 6, characterized in that: A plurality of support blocks (11) are slidably fitted on the first clamping rod (1) and the second clamping rod (2), and the support blocks (11) are located between the adjacent first clamping rods (1) and the second clamping rods (2); an ejector rod (13) is slidably fitted inside the first clamping rod (1) and the second clamping rod (2), and a plurality of hidden grooves corresponding to the support blocks (11) are formed on the ejector rod (13), and matching blocks (15) are slidably fitted in the hidden grooves, and the matching blocks (15) are fixedly connected to the support blocks (11); The ejector rod (13) is symmetrically arranged with the magnetic attraction block (4) as the center, and a first spring (14) is provided at one end of the ejector rod (13) away from the magnetic attraction block (4); When the ejection rod (13) abuts against the magnetic block (4), the matching block (15) is located in the hidden groove; when the ejection rod (13) and the magnetic block (4) are separated, the matching block (15) abuts against the ejection rod (13).

8. The clamping device for oral restoration according to claim 7, characterized in that: One end of the liquid inlet pipe (42) away from the magnetic attraction block (4) passes through the first clamping rod (1) and the second clamping rod (2).

9. The clamping device for oral restoration according to claim 8, characterized in that: The first clamping rod (1) and the second clamping rod (2) are made of transparent rubber material.

10. The clamping device for oral restoration according to claim 9, characterized in that: A groove is formed on the top of the extension block (12), and a mounting groove is formed on the extension block (12), wherein a baffle is clamped in the mounting groove.

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