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WO2024235208A1 - Ensemble de transfert d'implant - Google Patents

Ensemble de transfert d'implant Download PDF

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Publication number
WO2024235208A1
WO2024235208A1 PCT/CN2024/092944 CN2024092944W WO2024235208A1 WO 2024235208 A1 WO2024235208 A1 WO 2024235208A1 CN 2024092944 W CN2024092944 W CN 2024092944W WO 2024235208 A1 WO2024235208 A1 WO 2024235208A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
section
connecting rod
implant
transfer rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/092944
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English (en)
Chinese (zh)
Inventor
田建宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202480031982.2A priority Critical patent/CN121099966A/zh
Publication of WO2024235208A1 publication Critical patent/WO2024235208A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools

Definitions

  • the present application belongs to the technical field of medical equipment, and specifically relates to an implant transfer rod assembly.
  • the implant restoration is made on a plaster model outside the mouth. Therefore, it is necessary to use an implant transfer rod to record the three-dimensional spatial position of the oral implant and transfer it out of the mouth.
  • the implant transfer rod and the oral implant substitute are then used for retention and connection, and the three-dimensional spatial position of the oral implant is copied to the plaster model.
  • the implant restoration is then made on the plaster model and finally transferred from the plaster model to the mouth to perform the chewing function.
  • the implant transfer rod when the implant transfer rod is fully in place with the cavity implant, the implant transfer rod can record the exact position of the oral implant in three dimensions in the mouth and successfully replicate it on the extraoral plaster model. That is, when it has the recording and replication functions, there must be a unique and replicable position in its retention relationship with the oral implant. This position is achieved through the most stringent retention restrictions on the displacement of the implant transfer rod in the sagittal, horizontal and axial directions.
  • the key point of the implant transfer rod in exercising its transfer function is how to improve the success rate of the implant transfer rod in accurately preserving the recorded accurate position of the oral implant in three dimensions during the transfer process.
  • the focus is on the separation process of the implant transfer rod and the oral implant, that is, the dislocation process.
  • the implant transfer rod is easily affected by the dislocation force during the dislocation process.
  • the radial component of the dislocation force on the implant transfer rod is relatively large. Under the action of the above radial component, transfer failure is very likely to occur, which greatly reduces the success rate of transfer.
  • the present application aims to provide a planting transfer rod assembly to solve the problem of low transfer success rate of existing planting transfer rods.
  • the present application discloses a planting transfer rod assembly, the planting transfer rod assembly comprising:
  • a converter wherein a first through hole is provided in the converter, and the converter is used to be connected to the implant;
  • An implant transfer rod wherein a second through hole is provided in the implant transfer rod, the implant transfer rod is connected to the conversion body, and the second through hole is aligned with the first through hole;
  • a first connecting rod wherein the conversion body is detachably connected to the implant transfer rod to realize switching between a combined state and a separated state.
  • the first connecting rod extends into the second through hole and the first through hole, and respectively fits with at least part of the hole walls of the second through hole and the first through hole to limit the radial displacement of the conversion body and the implant transfer rod along the first connecting rod.
  • the first connecting rod at least releases the fit with the hole wall of the first through hole to release the restriction on the radial displacement of the conversion body and the implant transfer rod;
  • the anti-rotation mechanism is connected to at least one of the conversion body and the implant transfer rod, and the anti-rotation mechanism is used to limit the axial rotation of the conversion body and the implant transfer rod around the first connecting rod.
  • the surface of the first connecting rod in contact with the hole walls of the first through hole and the second through hole is continuous along the circumference of the first connecting rod
  • the surfaces of the first connecting rod that are in contact with the walls of the first through hole and the second through hole are discontinuous along the circumference of the first connecting rod.
  • a first cylindrical protrusion section is provided on the first connecting rod;
  • the first cylindrical protrusion segment is respectively fitted with the second through hole and a part of the hole wall of the first through hole to limit the radial displacement of the conversion body and the implant transfer rod along the first connecting rod.
  • the first cylindrical protrusion segment includes a plurality of segments spaced apart along the axial direction of the first connecting rod; wherein,
  • At least one section of the first cylindrical protrusion section fits against the hole wall of the first through hole, and at least one section of the first cylindrical protrusion section fits against the hole wall of the second through hole.
  • the first connecting rod comprises a first section, a first diameter-reducing section and a second section which are arranged in sequence, and the outer diameter of the first diameter-reducing section decreases from the second section to the first section;
  • a second diameter-changing section is provided at one end of the first through hole close to the second through hole, and a third diameter-changing section is provided at one end of the second through hole close to the first through hole;
  • the first section is located in the first through hole
  • the second section is located in the second through hole
  • the first reducing section is respectively fitted with the second reducing section and the third reducing section to limit the radial displacement of the converter and the implant transfer rod along the first connecting rod.
  • the first diameter-changing section includes a plurality of sections spaced apart along the axial direction of the first connecting rod; wherein,
  • At least one section of the first diameter-changing section is in contact with the second diameter-changing section, and at least one section of the first diameter-changing section is in contact with the third diameter-changing section.
  • the anti-rotation mechanism comprises: at least one first inclined surface arranged on the conversion body and at least one second inclined surface arranged on the implant transfer rod; wherein
  • the first inclined surface is arranged on a side of the conversion body close to the implant transfer rod;
  • the second inclined surface is arranged on a side of the implant transfer rod close to the conversion body, and the angle between the second inclined surface and the target plane is the same as the angle between the first inclined surface and the target plane, and the target plane is a plane perpendicular to the axial direction of the implant transfer rod;
  • the second inclined surface is in contact with the first inclined surface.
  • an angle between at least one of the first inclined surfaces and a second inclined surface aligned with the first inclined surface and the target plane is greater than 0 degrees and less than or equal to 90 degrees.
  • a height of at least one of the first inclined surfaces and a second inclined surface that is in contact with the first inclined surface along the axial direction of the first connecting rod is greater than 0.
  • the anti-rotation mechanism comprises: at least one first curved surface provided on the conversion body and at least one second curved surface provided on the implant transfer rod; wherein
  • the first curved surface is arranged on a side of the conversion body close to the implant transfer rod;
  • the second curved surface is arranged on a side of the implant transfer rod close to the conversion body, the angle between the tangent of the second curved surface and the target plane is the same as the angle between the tangent of the first curved surface and the target plane, and the target plane is a plane perpendicular to the axial direction of the implant transfer rod;
  • the second curved surface is in contact with the first curved surface.
  • an angle between a tangent line of the second curved surface and the target plane, and an angle between a tangent line of the first curved surface and the target plane are greater than 0 degrees and less than or equal to 90 degrees.
  • a height of at least one of the second curved surfaces and the first curved surface that fits the second curved surface along the axial direction of the first connecting rod is greater than 0.
  • the anti-rotation mechanism comprises a second connecting rod
  • the conversion body is provided with a mounting hole
  • a third through hole is provided in the implant transfer rod, and the third through hole is aligned with the mounting hole;
  • the second connecting rod in the combined state, is respectively connected to the third through hole and the mounting hole to limit the axial rotation of the conversion body and the implant transfer rod around the first connecting rod, and in the separated state, the second connecting rod is at least released from the mounting hole.
  • the surface of the second connecting rod that contacts the hole walls of the third through hole and the mounting hole is continuous along the circumference of the second connecting rod;
  • the surface where the second connecting rod is in contact with the hole walls of the third through hole and the mounting hole is discontinuous along the circumference of the second connecting rod.
  • a second cylindrical protrusion section is provided on the second connecting rod;
  • the second cylindrical protrusion segment is respectively fitted with the third through hole and part of the hole wall of the mounting hole to limit the axial rotation of the conversion body and the implant transfer rod around the first connecting rod.
  • the second cylindrical protrusion segment includes a plurality of segments spaced apart along the axial direction of the second connecting rod; wherein,
  • At least one section of the second cylindrical protrusion section fits against the hole wall of the third through hole, and at least one section of the second cylindrical protrusion section fits against the hole wall of the mounting hole.
  • the second connecting rod comprises a third section, a fourth diameter-reducing section and a fourth section which are arranged in sequence, and the outer diameter of the fourth diameter-reducing section decreases from the fourth section to the third section;
  • a fifth diameter-changing section is provided at one end of the mounting hole close to the third through hole, and a sixth diameter-changing section is provided at one end of the third through hole close to the mounting hole;
  • the third section is located in the mounting hole
  • the fourth section is located in the third through hole
  • the fourth reducing section is respectively fitted with the fifth reducing section and the sixth reducing section to limit the axial rotation of the converter and the implant transfer rod around the second connecting rod.
  • the fourth diameter-changing section includes a plurality of sections spaced apart along the axial direction of the second connecting rod; wherein,
  • At least one section of the fourth diameter-changing section is in contact with the fifth diameter-changing section, and at least one section of the fourth diameter-changing section is in contact with the sixth diameter-changing section.
  • one end of the second connecting rod is provided with a third external thread structure
  • the other end of the first connecting rod is provided with an abutment section
  • the mounting hole is provided with a second internal thread structure
  • the third external thread structure is threadedly engaged with the second internal thread structure, and the abutment section abuts against the implant transfer rod to limit the displacement of the conversion body and the implant transfer rod along the axial direction of the second connecting rod.
  • one end of the first connecting rod is provided with a first external thread structure
  • the first external thread structure is engaged with the implant thread to limit the displacement of the conversion body and the implant transfer rod along the axial direction of the first connecting rod.
  • the implant transfer rod assembly further includes a connecting screw
  • the first connecting rod is provided with a second external thread structure, and the first through hole is provided with a first internal thread structure;
  • the second external thread structure is connected to the first internal thread structure
  • the connecting screw is connected to the converter and the implant respectively to connect the converter to the implant, so as to limit the displacement of the converter and the implant transfer rod along the axial direction of the first connecting rod.
  • the first connecting rod when the implant transfer rod assembly and the implant are fully in place, can be respectively fitted with at least part of the hole wall of the second through hole and the first through hole to limit the radial displacement of the converter and the implant transfer rod along the first connecting rod, and the anti-rotation mechanism can be used to limit the axial rotation of the converter and the implant transfer rod around the first connecting rod.
  • the retention restriction of the sagittal and horizontal displacement of the implant transfer rod and the converter can be achieved to achieve the recording and copying functions of the implant transfer rod.
  • the first connecting rod can at least contact the fit with the first through hole to release the combination between the converter and the implant transfer rod.
  • the radial (i.e., horizontal) limitation of the implant transfer rod and the converter by the first connecting rod disappears, and the radial component of the dislocation force on the implant transfer rod and the converter is small in the first connecting rod, which greatly improves the transfer success rate of the implant transfer rod assembly.
  • FIG1 is a schematic diagram of the structure of a transplantation transfer rod assembly according to an embodiment of the present application.
  • FIG. 2 is a second structural schematic diagram of a transplant transfer rod assembly according to an embodiment of the present application.
  • FIG3 is a schematic diagram of the top view of the implant transfer rod assembly shown in FIG2 ;
  • FIG4 is a schematic diagram of a top view of a first connecting rod according to an embodiment of the present application.
  • FIG5 is a second schematic diagram of a top view of a first connecting rod according to an embodiment of the present application.
  • FIG6 is a third structural schematic diagram of a planting transfer rod according to an embodiment of the present application.
  • FIG. 7 is a fourth structural schematic diagram of a planting transfer rod according to an embodiment of the present application.
  • FIG8 is a fifth structural schematic diagram of a planting transfer rod assembly according to an embodiment of the present application.
  • FIG. 9 is a sixth structural schematic diagram of an implant transfer rod assembly described in an embodiment of the present application.
  • first or “second” in the specification and claims of this application may include one or more of the features explicitly or implicitly.
  • plural means two or more.
  • and/or in the specification and claims means at least one of the connected objects, and the character “/” generally means that the objects connected before and after are in an “or” relationship.
  • 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.
  • installed 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.
  • the implant transfer rod assembly includes: a conversion body 10, a first through hole 101 is provided in the conversion body 10, and the conversion body 10 can be used to connect with the implant 20; an implant transfer rod 11, a second through hole 111 is provided in the implant transfer rod 11, the implant transfer rod 11 is connected to the conversion body 10, and the second through hole 111 is aligned with the first through hole 101; a first connecting rod 12, the conversion body 10 and the implant transfer rod 11 are detachably connected to achieve switching between a combined state and a separated state, in which the first connecting rod 12 extends into the second through hole 111 and the first through hole 101, and They are respectively fitted with at least part of the hole walls of the second through hole 111 and the first through hole 101 to limit the radial displacement of the conversion body 10 and the implant transfer rod 11 along the first connecting rod 12.
  • the first connecting rod 12 at least releases the fit with the hole wall of the first through hole 101 to release the restriction on the radial displacement of the conversion body 10 and the implant transfer rod 101; and an anti-rotation mechanism 13, the anti-rotation mechanism 13 is connected to at least one of the conversion body 10 and the implant transfer rod 11, and the anti-rotation mechanism 13 can be used to limit the axial rotation of the conversion body 10 and the implant transfer rod 11 around the first connecting rod 12.
  • the first connecting rod 13 can fit with at least part of the hole wall of the second through hole 111 and the first through hole 101 respectively to limit the radial displacement of the converter 10 and the implant transfer rod 11 along the first connecting rod 12, and the anti-rotation mechanism 13 can be used to limit the axial rotation of the converter 10 and the implant transfer rod 11 around the first connecting rod 12. In this way, the retention restriction of the sagittal and horizontal displacement of the implant transfer rod 11 and the converter 10 can be achieved to achieve the recording and copying functions of the implant transfer rod 11.
  • the first connecting rod 12 at least releases the fit with the first through hole 101 to release the combination of the converter 10 and the implant transfer rod 11.
  • the radial (i.e. horizontal) limitation of the first connecting rod 12 on the implant transfer rod 11 and the converter 10 disappears, and the radial component of the dislocation force exerted on the implant transfer rod 11 and the converter 10 on the first connecting rod 12 is relatively small, which greatly improves the transfer success rate of the implant transfer rod assembly.
  • a first external thread structure 121 is provided at one end of the first connecting rod 12; in the combined state, the first external thread structure 121 can be threadedly engaged with the threaded hole 201 on the implant 10 to limit the axial displacement of the converter 10 and the implant transfer rod 11 along the first connecting rod 12. In the separated state, the first external thread structure 121 can be disconnected from the threaded hole 201 on the implant 10, so that the axial limit of the implant transfer rod 11 and the converter 10 by the first connecting rod 12 is released, so that the implant transfer rod 11 is disconnected from the converter 10. That is, the axial limit of the implant transfer rod assembly can be achieved by setting a single screw (first connecting rod 12).
  • the implant transfer rod assembly also includes a connecting screw 15, on which an external thread 151 is provided; the first connecting rod 12 is provided with a second external thread structure 127, and the first through hole 101 is provided with a first internal thread structure 103; wherein, in the combined state, the second external thread structure 127 is connected to the first internal thread structure 103, and the connecting screw 15 is respectively connected to the threaded holes 202 on the converter 10 and the implant 20 to connect the converter 10 to the implant 20 to limit the axial displacement of the converter 10 and the implant transfer rod 11 along the first connecting rod 12.
  • the first connecting rod 12 can be disengaged from the first through hole 101 to convert the connection between the body 10 and the implant transfer rod 11, and then the connecting screw 15 can be screwed out of the implant 20 to release the connection between the body 10 and the implant 20, thereby releasing the axial limit of the implant transfer rod 11. That is, in FIG. 2 , the axial limit of the implant transfer rod 11 and the converter 10 is achieved by the first connecting rod 12 and the connecting screw 15.
  • the implant transfer rod assembly may include a converter 10, which may be regarded as a rigid extension of the implant 20.
  • the converter 10 When fully in place, the converter 10 may be connected to the implant 20.
  • the implant impression may be conventionally made in the mouth using impression materials and trays to complete the indirect recording of the accurate position of the implant 20 in the mouth by the implant transfer rod assembly.
  • the position where the converter 10 is connected to the implant 20 must be unique and reproducible, and the accurate position of the oral implant 20 in three dimensions in the mouth may be recorded, i.e., it has a recording function.
  • the first connecting rod 12 can be respectively fitted with at least part of the hole wall of the second through hole 111 and the first through hole 101 to limit the radial displacement of the conversion body 10 and the implant transfer rod 11 along the first connecting rod 12.
  • the anti-rotation mechanism 13 can be used to limit the axial rotation of the implant transfer rod 11 and the conversion body 10.
  • the first connecting rod 11 or the first connecting rod 11 combined with the connecting screw 15 is used to limit the axial limit of the device transfer rod 11 and the conversion body 10.
  • the first connecting rod 12 can be removed, the implant impression can be separated from the mouth, and the implant transfer rod assembly can complete the transfer of the implant 20 in the mouth.
  • the first connecting rod 12 can at least release the fit with the first through hole 101.
  • the horizontal limitation of the implant transfer rod 11 and the converter 10 by the first connecting rod 12 disappears.
  • the lateral component of the dislocation force on the implant transfer rod 11 and the converter 10 in the radial direction of the first connecting rod 11 is relatively small, and it is not easy to be affected in the horizontal direction, which greatly improves the transfer success rate of the implant transfer rod 11.
  • FIG4 one of the schematic diagrams of the top view structure of a first connecting rod according to the implementation of the present application is shown, and referring to FIG5 , the second schematic diagram of the top view structure of a first connecting rod according to the implementation of the present application is shown.
  • the profile of the first connecting rod 11 is a complete circumferential surface, and the surface where the first connecting rod 11 fits with the hole walls of the first through hole 101 and the second through hole 111 (the surface of the edge of the first connecting rod 11) can be continuous along the circumference of the first connecting rod.
  • the profile of the first connecting rod 11 is a non-connected arc surface, so that the surface where the first connecting rod 11 fits with the hole walls of the first through hole 101 and the second through hole 111 is non-continuous along the circumference of the first connecting rod 11.
  • the contact surfaces of the first connecting rod 11 and the first through hole 101 and the second through hole 111 may be continuous or discontinuous, and this application does not limit this.
  • a first cylindrical protrusion section 123 is provided on the first connecting rod 12; wherein, in the combined state, the first cylindrical protrusion section 123 is respectively fitted with part of the hole walls of the second through hole 111 and the first through hole 101 to limit the radial (horizontal) displacement of the conversion body 10 and the implant transfer rod 11 along the first connecting rod 12.
  • the first connecting rod 12 can at least detach from the first through hole 101, at least releasing the fit between the first cylindrical protrusion section 123 and the first through hole 101, thereby releasing the horizontal limitation of the implant transfer rod 11 by the first connecting rod 11 and improving the success rate of transfer.
  • the first cylindrical protrusion segment 123 may include multiple segments distributed at axial intervals along the first connecting rod 11; wherein, in the combined state, at least one segment of the first cylindrical protrusion segment 123 is in contact with the hole wall of the first through hole 101, and at least one segment of the first cylindrical protrusion segment 123 is in contact with the hole wall of the second through hole 111.
  • the first cylindrical protrusion segment 123 may include two segments, one of which is in contact with the hole wall of the first through hole 101, and the other segment is in contact with the hole wall of the second through hole 111.
  • the first cylindrical protrusion segment 123 may include three segments, one of which is in contact with the hole wall of the first through hole 101, and the other two segments are in contact with the hole wall of the second through hole 111.
  • first cylindrical protrusion segments 123 can be set according to actual needs.
  • the drawings only show the case where the first cylindrical protrusion segment 123 is one segment, and the case where there are multiple segments can be implemented accordingly.
  • a gasket 14 may be provided between the nut 122 and the implant transfer rod 11 .
  • the gasket 14 may be used to enhance the connection reliability between the first connecting rod 12 and the implant transfer rod 11 , and between the first connecting rod 12 and the implant 20 .
  • the outer wall of the implant transfer rod 11 is further provided with a limiting portion 112 protruding outward, and the limiting portion 112 can be used to prevent the implant transfer rod 11 from being displaced.
  • the number of the limiting parts 112 can be set according to actual conditions.
  • the number of the limiting parts 112 can be 1, 2 or 4, etc.
  • the embodiment of the present application does not specifically limit the number of the limiting parts 112.
  • the first connecting rod 12 includes a first section 124, a first reducing section 125 and a second constant diameter section 126 which are arranged in sequence.
  • the outer diameter of the first reducing section 125 decreases from the second section 126 to the first section 124, and a second external thread structure 127 is provided at one end of the first section 124 away from the second section 126;
  • a second reducing section 102 is provided at one end of the first through hole 101 close to the second through hole 111, and a third reducing section 113 is provided at one end of the second through hole 111 close to the first through hole 101; in the combined state, the first section 124 is located in the first through hole 101, and the second section 126 is located in the second through hole 111, and the first reducing section 125 is respectively fitted with the second reducing section 102 and the third reducing section 113 to limit the radial displacement of the converter 10 and the implant transfer rod 11 along the first connecting rod 11, and the structure is simple and the limiting is reliable.
  • the first connecting rod 12 can be at least disengaged from the second through hole 111 and the first through hole 101 to at least release the fit between the first diameter reducing section 125 and the second diameter reducing section 102, thereby releasing the horizontal limit of the implant transfer rod 11 and the conversion body 10 by the first connecting rod 11 and releasing the axial limit of the implant transfer rod 11. Then, the connection between the screw 15 and the implant 20 is released to release the axial limit of the implant 10.
  • the first reducing section 125 may include multiple sections distributed along the axial direction of the first connecting rod 11; wherein, in the combined state, at least one section of the first reducing section 125 is in contact with the second reducing section 102, and at least one section of the first reducing section 125 is in contact with the third reducing section 113.
  • the first diameter reducing section 125 may include two sections, one of which is aligned with the second diameter reducing section 102, and the other is aligned with the third diameter reducing section 113.
  • the first diameter reducing section 125 may include three sections, one of which is aligned with the second diameter reducing section 102, and the other two are aligned with the third diameter reducing section 113.
  • first diameter-changing sections 125 can be set according to actual needs.
  • the drawings only show the case where the first diameter-changing section 125 is one section, and the case where there are multiple sections can be implemented accordingly.
  • the anti-rotation mechanism may include: at least one first inclined surface 104 arranged on the conversion body 10 and at least one second inclined surface 114 arranged on the planting transfer rod 11; wherein the first inclined surface 104 is arranged on the side of the conversion body 10 close to the planting transfer rod 11; the second inclined surface 114 is arranged on the side of the planting transfer rod 11 close to the conversion body 10, and the angle between the second inclined surface 114 and the target plane is the same as the angle between the first inclined surface 104 and the target plane, and the target plane is a plane perpendicular to the axial direction of the planting transfer rod 11; in the combined state, the second inclined surface 114 is in contact with the first inclined surface 104 to limit the axial rotation of the conversion body 10 and the planting transfer rod 11 around the first connecting rod 12.
  • first inclined surfaces 104 and second inclined surfaces 114 there can be multiple first inclined surfaces 104 and second inclined surfaces 114, and one first inclined surface 104 fits with one second inclined surface 114.
  • the arrangement of multiple first inclined surfaces 104 and second inclined surfaces 114 arranged circumferentially is conducive to uniform force between the replacement body 10 and the implant transfer rod 11, thereby further improving the transfer success rate of the implant transfer rod assembly.
  • FIG. 3 a schematic diagram of the top view of the implant transfer rod assembly shown in FIG. 2 is shown.
  • the number of the first inclined surface 104 and the second inclined surface 114 is only one, and the structure is simple and easy to implement.
  • the number of the first slope 104 and the second slope 114 can be 1, 2, 3, 4 or 6, etc., and the embodiments of the present application do not specifically limit this.
  • the angle between at least one first inclined surface 104 and the second inclined surface 114 that is in contact with the first inclined surface 104 and the target plane is greater than 0 degrees and less than or equal to 90 degrees, so as to limit the axial rotation of the conversion body 10 and the implant transfer rod 11 around the first connecting rod 12 through the cooperation between the first inclined surface 104 and the second inclined surface 114.
  • the angle between the first inclined surface 104 and the target plane of the second inclined surface 114 is 90 degrees.
  • the angles between the other first inclined planes 104 and the second inclined planes 114 and the target plane can be equal to 0, or greater than 0 and less than or equal to 90 degrees.
  • the height of at least one first bevel 104 and the second bevel 114 that is in contact with the first bevel 104 along the axial direction of the first connecting rod 12 is greater than 0, that is, the first bevel 104 and the second bevel 114 have a height in the axial direction of the first connecting rod 12, so as to limit the axial rotation of the conversion body 10 and the implant transfer rod 11 around the first connecting rod 12 by the first bevel 104 and the second bevel 114 having a height.
  • the anti-rotation mechanism 13 may also include: at least one first curved surface arranged on the conversion body 10 and at least one second curved surface arranged on the implant transfer rod 11; wherein the first curved surface is arranged on the side of the conversion body 10 close to the implant transfer rod 11; the second curved surface is arranged on the side of the implant transfer rod 11 close to the conversion body 10, and the angle between the tangent of the second curved surface and the target plane is the same as the angle between the tangent of the first curved surface and the target plane, and the target plane is a plane perpendicular to the axial direction of the implant transfer rod 11; in the combined state, the second curved surface is in contact with the first curved surface to limit the axial rotation of the conversion body 10 and the implant transfer rod 11 around the first connecting rod 12.
  • an angle between a tangent line of the second curved surface and the target plane, and an angle between a tangent line of the first curved surface and the target plane are greater than 0 degrees and less than or equal to 90 degrees.
  • first and second curved surfaces whose tangents have an angle greater than 0 degree and less than or equal to 90 degrees with the target plane the angles between the tangents of other first and second curved surfaces 114 and the target plane can be equal to 0, or greater than 0 and less than or equal to 90 degrees.
  • the height of at least one of the second curved surfaces and the first curved surface that is in contact with the second curved surface along the axial direction of the first connecting rod 12 is greater than 0, that is, the first curved surface and the second curved surface have a height in the axial direction of the first connecting rod 12, so as to limit the axial rotation of the conversion body 10 and the implant transfer rod 11 around the first connecting rod 12 by the first curved surface and the second curved surface having height.
  • the top of the first connecting rod 11 has a first screwdriver groove 116 and a first screw rod handle 117 for cooperating with a screwdriver, as well as an external reinforcement attachment bonding part 118.
  • the bonding part 118 is bonded to the wall of the impression tray, a metal rod, etc., for fixing more than two implant transfer rods 11.
  • the top of the connecting screw 15 also has a second screwdriver groove 152 for cooperating with a screwdriver.
  • FIG 7 there is shown a fourth structural schematic diagram of an implant transfer rod assembly described in an embodiment of the present application. As shown in Figure 7, by threading the first connecting rod 12 onto the implant 20, the axis position of the implant transfer rod assembly can be limited.
  • the anti-rotation mechanism may include a second connecting rod 131; a mounting hole 106 is provided in the conversion body 10; a third through hole 119 is provided in the planting transfer rod 11, and the third through hole 119 is aligned with the mounting hole 106; wherein, in the combined state, the second connecting rod 131 is respectively connected to the third through hole 119 and the mounting hole 106 to limit the axial rotation of the conversion body 10 and the planting transfer rod 11 around the first connecting rod 12, and in the separated state, the first connecting rod 12 is at least disconnected from the mounting hole 106.
  • the first connecting rod 10 and the second connecting rod 131 can be at least separated from the conversion body 10 to release the connection between the implant transfer rod 11 and the conversion body 10.
  • the lateral component of the separation force in the horizontal direction on the implant transfer rod 11 and the conversion body 10 is zero. In this way, the transfer success rate of the implant transfer rod assembly can be significantly improved.
  • the surface where the second connecting rod 131 is in contact with the hole wall of the third through hole 119 and the mounting hole 106 is continuous along the circumference of the second connecting rod 131; or, the surface where the second connecting rod 131 is in contact with the hole wall of the third through hole 119 and the mounting hole 106 is discontinuous along the circumference of the second connecting rod 131.
  • the technical solution of the first connecting rod 11 in FIG. 4 and FIG. 5 can be referred to, and no further description is given here.
  • a third external thread structure 132 is provided at one end of the second connecting rod 131, and a butt section 133 is provided at the other end of the first connecting rod 12.
  • a second cylindrical protrusion section 134 is provided between the third external thread structure 132 and the butt section 133, and a second internal thread structure 107 is provided in the mounting hole 106; wherein, in the said combined state, the third external thread structure 132 is threadedly engaged with the second internal thread structure, the butt section 133 abuts against the implant transfer rod 11, and the second cylindrical protrusion section 134 is respectively fitted with part of the hole wall of the third through hole 119 and the mounting hole 106 to limit the axial rotation of the conversion body 10 and the implant transfer rod 11 around the first connecting rod 12.
  • the second cylindrical protrusion segment 134 may include multiple segments distributed at axial intervals along the second connecting rod 131; wherein, in the combined state, at least one segment of the second cylindrical protrusion segment 134 is in contact with the hole wall of the third through hole 119, and at least one segment of the second cylindrical protrusion segment 134 is in contact with the hole wall of the mounting hole 106.
  • the second cylindrical protrusion section 134 may include two sections, one of which is in contact with the hole wall of the third through hole 119, and the other section is in contact with the hole wall of the mounting hole 106.
  • the second cylindrical protrusion section 134 may include three sections, one of which is in contact with the hole wall of the third through hole 119, and the other two sections are in contact with the hole wall of the mounting hole 106.
  • a countersunk hole 1110 is provided in the implant transfer rod 11, and the countersunk hole 1110 is connected to the third through hole 119.
  • the abutment section 133 is provided in the countersunk hole 1110, and the abutment section 133 abuts against the bottom of the countersunk hole 1110 to improve the connection strength between the second implant transfer rod 131 and the conversion body 10 and the implant body 20, thereby improving the transfer success rate of the implant transfer rod assembly.
  • the second connecting rod 131 includes a third section 137, a fourth diameter-reducing section 138, and a fourth section 139, which are arranged in sequence.
  • the outer diameter of the fourth diameter-reducing section 138 decreases from the fourth section 139 to the third section 137.
  • the end of the third section 137 away from the fourth section 139 is provided with a third external thread structure 132.
  • the end of the mounting hole 106 close to the third through hole 119 is provided with a fifth diameter-reducing section 107, and the mounting hole 106 is provided with a second internal thread structure 107.
  • a sixth reducing section 1111 is provided at one end of the third through hole 119 close to the mounting hole 106; in the combined state, the third section 137 is located in the mounting hole 106, the third external thread structure 132 is connected to the second internal thread structure 107, the fourth section 139 is located in the third through hole 119, and the fourth reducing section 136 is respectively fitted with the fifth reducing section 107 and the sixth reducing section 1111 to limit the axial rotation of the converter 10 and the implant transfer rod 11 around the first connecting rod 12.
  • a connecting hole 153 is further provided in the implant, and the connecting hole 153 can be used for connecting members such as screws and threaded rods to enter.
  • the implant transfer rod assembly described in the embodiment of the present application can at least include the following advantages:
  • the first connecting rod when the implant transfer rod assembly and the implant are in full position, can be respectively fitted with at least part of the hole wall of the second through hole and the first through hole to limit the radial displacement of the converter and the implant transfer rod along the first connecting rod, and the anti-rotation mechanism can be used to limit the axial rotation of the converter and the implant transfer rod around the first connecting rod.
  • the retention restriction of the sagittal and horizontal displacement of the implant transfer rod and the converter can be achieved to achieve the recording and copying functions of the implant transfer rod.
  • the first connecting rod can at least contact the fit with the first through hole to release the combination between the converter and the implant transfer rod.
  • the radial (i.e., horizontal) limitation of the implant transfer rod and the converter by the first connecting rod disappears, and the radial component of the dislocation force on the implant transfer rod and the converter in the first connecting rod 12 is small, which greatly improves the transfer success rate of the implant transfer rod assembly.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.
  • references to "one embodiment,” “embodiment,” or “one or more embodiments” herein mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present application.
  • examples of the term “in one embodiment” herein do not necessarily all refer to the same embodiment.
  • any reference signs placed between brackets shall not be construed as limiting the claims.
  • the word “comprising” does not exclude the presence of elements or steps not listed in the claims.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the present application may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware.
  • the use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un ensemble de transfert d'implant. L'ensemble de transfert d'implant comprend : un corps de conversion, un premier trou traversant étant formé dans le corps de conversion ; un transfert d'implant, un deuxième trou traversant étant formé dans le transfert d'implant, le transfert d'implant étant relié au corps de conversion, et le deuxième trou traversant étant aligné avec le premier trou traversant ; une première tige de liaison, le corps de conversion étant relié de manière amovible au transfert d'implant et, lorsqu'il se trouve dans un état combiné, la première tige de liaison s'étendant dans le deuxième trou traversant et le premier trou traversant et étant fixée séparément à au moins une partie des parois de trou du deuxième trou traversant et du premier trou traversant, de façon à limiter le déplacement radial du corps de conversion et le transfert d'implant dans la direction radiale de la première tige de liaison ; dans un état séparé, la première tige de liaison libère au moins une adhérence avec la paroi de trou du premier trou traversant, de façon à libérer la limitation sur le déplacement radial du corps de conversion et du transfert d'implant ; et un mécanisme anti-rotation, le mécanisme anti-rotation étant relié au corps de conversion et/ou au transfert d'implant, et utilisé pour limiter la rotation axiale du corps de conversion et le transfert d'implant autour de la première tige de liaison.
PCT/CN2024/092944 2023-05-12 2024-05-13 Ensemble de transfert d'implant Pending WO2024235208A1 (fr)

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CN2023000059 2023-05-12
CNPCT/CN2023/000059 2023-05-12
CNPCT/CN2023/000090 2023-08-11
CN2023000090 2023-08-11
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Citations (7)

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US20080254411A1 (en) * 2006-08-01 2008-10-16 Vitali Bondar Dental Implant System and Method
US20140147812A1 (en) * 2010-09-24 2014-05-29 Zimmer Dental, Inc. Dental implant and abutment system
US20170027669A1 (en) * 2014-04-22 2017-02-02 T.A.G. Medical Devices - Agriculture Cooperative Ltd. Dental implants
CN211300425U (zh) * 2019-12-17 2020-08-21 黄楠楠 种植体结构
CN211381884U (zh) * 2019-12-31 2020-09-01 河南卡瓦义齿科技有限公司 一种防旋转种植转移杆
CN111671536A (zh) * 2020-06-30 2020-09-18 桂林市啄木鸟医疗器械有限公司 种植体、种植装置及种植牙
CN218010010U (zh) * 2022-07-20 2022-12-13 北京爱康宜诚医疗器材有限公司 种植件及种植组件

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080254411A1 (en) * 2006-08-01 2008-10-16 Vitali Bondar Dental Implant System and Method
US20140147812A1 (en) * 2010-09-24 2014-05-29 Zimmer Dental, Inc. Dental implant and abutment system
US20170027669A1 (en) * 2014-04-22 2017-02-02 T.A.G. Medical Devices - Agriculture Cooperative Ltd. Dental implants
CN211300425U (zh) * 2019-12-17 2020-08-21 黄楠楠 种植体结构
CN211381884U (zh) * 2019-12-31 2020-09-01 河南卡瓦义齿科技有限公司 一种防旋转种植转移杆
CN111671536A (zh) * 2020-06-30 2020-09-18 桂林市啄木鸟医疗器械有限公司 种植体、种植装置及种植牙
CN218010010U (zh) * 2022-07-20 2022-12-13 北京爱康宜诚医疗器材有限公司 种植件及种植组件

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