CN116687597A - Planting restoration body with anti-rotation conical surface - Google Patents
Planting restoration body with anti-rotation conical surface Download PDFInfo
- Publication number
- CN116687597A CN116687597A CN202310698668.7A CN202310698668A CN116687597A CN 116687597 A CN116687597 A CN 116687597A CN 202310698668 A CN202310698668 A CN 202310698668A CN 116687597 A CN116687597 A CN 116687597A
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- CN
- China
- Prior art keywords
- rotation
- abutment
- titanium
- composite
- temporary
- 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.)
- Withdrawn
Links
- 239000002131 composite material Substances 0.000 claims abstract description 70
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 68
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 68
- 239000010936 titanium Substances 0.000 claims abstract description 68
- 239000007943 implant Substances 0.000 claims abstract description 47
- 210000000988 bone and bone Anatomy 0.000 claims description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 238000011160 research Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 6
- 210000001847 jaw Anatomy 0.000 description 6
- 230000001055 chewing effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000004195 gingiva Anatomy 0.000 description 3
- 210000000214 mouth Anatomy 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 210000001909 alveolar process Anatomy 0.000 description 1
- 239000004053 dental implant Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000002698 mandibular nerve Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
-
- 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
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0037—Details of the shape
-
- 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
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0037—Details of the shape
- A61C2008/0046—Textured surface, e.g. roughness, microstructure
Landscapes
- 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)
- Dental Prosthetics (AREA)
Abstract
The invention belongs to the field of basic research of oral implant restoration, and aims to overcome the defect that an existing implant restoration body based on a composite abutment is easy to loosen and even damage, and provides an implant restoration body with an anti-rotation conical surface. According to the invention, the anti-rotation structure is arranged on the composite base station and the titanium temporary base station, so that the relative rotation between the composite base station and the titanium temporary base station is prevented, the loosening of threaded connection between the composite base station and the titanium temporary base station is further avoided, the stability of the composite base station and the titanium temporary base station is maintained, and the service life of the implant restoration is prolonged.
Description
Technical Field
The invention belongs to the field of basic research of oral implant restoration, and particularly relates to an implant restoration body with an anti-rotation conical surface.
Background
At present, there are two main types of clinical toothless jaw implant restoration: traditional two-stage abutment repair and composite abutment repair. Compared with the traditional two-section abutment repair, the composite abutment repair is immediately repaired when the toothless jaw is planted, has good repair advantages, and is favored by doctors to be applied in a large number. A dental-free patient often needs to implant an implant obliquely in the case of a thinner jaw bone plate or a shorter distance from the mandibular nerve tube to the alveolar ridge crest. In order to ensure the standing of the dental crowns, the implant restoration is required to have an angle adjusting function for inclined implant, and the traditional two-section abutment cannot greatly correct the restoration angle. In recent years, in the semi-oral and full-oral toothless dental implant restoration, the composite abutment is further provided with a temporary abutment for connecting a dental crown at the upper end thereof, and has remarkable advantages in structure, so that the composite abutment is more and more clinically favored by doctors.
The composite abutment is used as a novel abutment, the problem of adjusting the angle and the height of the implant prosthesis in the repairing process is well solved structurally, and compared with the traditional abutment repairing, the composite abutment moves the abutment-dental crown interface from the lower side of the gingiva to the upper side of the gingiva or the gingiva, is far away from the implant-bone interface, is favorable for clinical maintenance and intervention, and has greater significance for long-term success of the implant prosthesis. However, as the composite abutment is used in clinic, problems are gradually exposed, and the secondary screw for connecting the composite abutment and the titanium temporary abutment is smaller, the tightening force is only 15N to 20N. The composite abutment and the titanium temporary abutment are connected with the secondary central screw of the upper dental restoration structure in a complex chewing environment of the mouth often loose, if the composite abutment and the titanium temporary abutment are not disposed in time, the primary central screw of the connecting part of the composite abutment and the implant is loose, the breakage of the secondary central screw and the damage of a screw bolt channel are seriously caused, and finally the loosening, falling and breakage of the upper dental restoration structure are caused. The reason for loosening the secondary central screw for connecting the composite abutment and the titanium temporary abutment is that the smooth outer conical surface of the upper circular table of the composite abutment is connected with the smooth inner conical surface of the connecting hole of the titanium temporary abutment corresponding to the circular table, and the two abutments are connected by only one smaller secondary central screw. The two base stations are in smooth friction connection, so that chewing stress can be concentrated on a smaller secondary central screw in the complex oral chewing process of a toothless jaw patient, and finally the screw is loosened and broken.
Disclosure of Invention
The invention aims to overcome the defect that the existing implant restoration based on the composite base is easy to loosen and even damage, and provides the implant restoration with the anti-rotation conical surface, so that the stability of the implant restoration is maintained, and the service life of the implant restoration is prolonged.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the utility model provides an implant restoration with anti-rotation conical surface, its main points lie in, it includes implant, compound abutment, the interim abutment of titanium, the crown that connects gradually from bottom to top, and the implant is used for fixing implant restoration at the alveolar bone, and the connection between compound abutment and the interim abutment of titanium is threaded connection, is equipped with anti-rotation structure between compound abutment and the interim abutment of titanium to prevent compound abutment and the interim abutment of titanium relative rotation.
According to the invention, the anti-rotation structure is arranged on the composite base station and the titanium temporary base station, so that the relative rotation between the composite base station and the titanium temporary base station is prevented, the loosening of threaded connection between the composite base station and the titanium temporary base station is further avoided, the stability of the composite base station and the titanium temporary base station is maintained, and the service life of the implant restoration is prolonged.
Further, the upper end of the composite base station is provided with a round table, the lower end of the titanium temporary base station is provided with a connecting hole, the round table is sleeved with the connecting hole to enable the composite base station to be sleeved with the titanium temporary base station, and the outer conical surface of the round table corresponds to the inner conical surface of the connecting hole.
The sleeved connection mode plays a role in guiding when the composite base station and the titanium temporary base station are installed, so that the composite base station and the titanium temporary base station can be installed and positioned conveniently.
Further, the anti-rotation structure comprises a first anti-rotation part arranged on the composite base station and a second anti-rotation part arranged on the titanium temporary base station, the outer conical surface of the composite base station is provided with a first anti-rotation part which is concave downwards or convex upwards from the outer conical surface, the inner conical surface of the titanium temporary base station is provided with a second anti-rotation part which is convex upwards or concave downwards from the inner conical surface, the first anti-rotation part and the second anti-rotation part are in concave-convex corresponding arrangement, and the first anti-rotation part and the second anti-rotation part are matched to prevent the composite base station and the titanium temporary base station from rotating relatively.
The anti-rotation structure is arranged on the conical surface, so that the outer conical surface and the inner conical surface form an anti-rotation conical surface, a gap between the two conical surfaces which are sleeved with each other is smaller, and the anti-rotation part is arranged on the sleeved outer conical surface and the inner conical surface, so that the first anti-rotation part and the second anti-rotation part are matched more tightly, and the anti-rotation structure is more reliable.
Further, the first anti-rotation part and the second anti-rotation part are multiple, and the number and the positions of the first anti-rotation part and the second anti-rotation part are corresponding.
The provision of a plurality of anti-rotation portions can further improve the reliability of the anti-rotation structure.
Further, the first anti-rotation parts are uniformly arranged along the rotary shaft of the round table of the composite base station; the second anti-rotation parts are four and are uniformly arranged along the rotating shaft of the connecting hole of the titanium temporary base.
The first anti-rotation part and the second anti-rotation part which are uniformly arranged enable the stress of the anti-rotation structure to be uniform, and the four anti-rotation parts are arranged, so that the anti-rotation parts can be more easily processed and molded on the basis of meeting the requirements of the strength and the reliability of the anti-rotation structure.
Further, the first anti-rotation part penetrates through the upper end face and the lower end face of the round table, and the second anti-rotation part penetrates through the upper end face and the lower end face of the connecting hole.
The first anti-rotation part and the second anti-rotation part respectively penetrate through the upper end face and the lower end face of the round table and the connecting hole, so that the lengths of the first anti-rotation part and the second anti-rotation part are prolonged, and the reliability of the anti-rotation structure is further improved.
Further, the cross sections of the first anti-rotation part and the second anti-rotation part are semicircular.
Because the planting restoration body size is less, consequently set up the cross section of first anti rotating part and second anti rotating part as semi-circular can make first anti rotating part and second anti rotating part surperficial round, also be difficult for wearing and tearing after long-time use, improve anti rotating structure's life-span and reliability.
Further, the top end of the composite base station is provided with a threaded hole coaxial with the round table, a through hole coaxial with the connecting hole is arranged at the central shaft of the titanium temporary base station, and the threaded connecting piece penetrates through the through hole to be matched with the threaded hole, so that the composite base station and the titanium temporary base station form threaded connection.
The composite base station and the titanium temporary base station are arranged after the implant is planted in the oral cavity in advance, and the operation space in the oral cavity is smaller, so that the operation is convenient by using threaded connection, and the connection is reliable.
The invention has the advantages that the anti-rotation structure is added on the sleeving surface of the composite base station and the titanium temporary base station, so that the whole fixation of the restoration is more stable. In the complex oral chewing process of the toothless jaw patient, the chewing rotation stress can be dispersed on the anti-rotation structure uniformly distributed on the strict rotating shaft, so that the rotation stress of the secondary central screw is greatly reduced, the possibility of loosening the secondary central screw is reduced, and the method has great clinical practical significance for reducing the serious consequences of loosening, falling and breaking of the upper structure of the toothless jaw implant prosthesis caused by the breakage of the secondary central screw or the damage of screw bolt channels.
Drawings
Fig. 1 is a view showing the structure of the present invention (without the crown).
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a sectional view showing a state of use of the present invention.
Fig. 4 is a perspective view of a titanium temporary abutment.
Fig. 5 is a cross-sectional view of a titanium temporary abutment.
Fig. 6 is a perspective view of another embodiment of a composite abutment.
Fig. 7 is a perspective view of another embodiment of a titanium temporary abutment.
Wherein: 1 implant, 11 abutment mounting holes, 2 composite abutment, 21 connecting post, 22 round tables, 221 threaded holes, 3 titanium temporary abutment, 31 connecting holes, 32 through holes, 321 first through holes, 322 second through holes, 33 crown mounting parts, 4 crowns, 5 second level central screws, 6 anti-rotation structures, 61 first anti-rotation parts, 62 second anti-rotation parts, 100 alveolar bones.
Detailed Description
The invention will now be described in detail with reference to the drawings, the examples being given to enable one skilled in the art to make a better understanding of the invention without limiting the invention in any way.
Referring to fig. 1 to 5, the invention provides an implant prosthesis with an anti-rotation conical surface, which comprises an implant 1, a composite abutment 2, a titanium temporary abutment 3 and a dental crown 4 which are sequentially connected from bottom to top. The implant 1 is inserted into the alveolar bone 100 to fix the implant prosthesis to the alveolar bone 100, an external thread is provided at the lower end of the implant 1, the implant 1 is inserted into a pre-opened implant hole in the alveolar bone 100, and the implant 1 is fixedly connected with the alveolar bone 100 through the external thread. The abutment mounting hole 11 that extends along the center pin has been seted up to the up end of implant 1, and abutment mounting hole 11 has the internal thread, and the lower extreme of compound abutment 2 is equipped with the spliced pole 21 that possesses the external screw thread, spliced pole 21 and abutment mounting hole 11 threaded connection to spliced pole 21 forms the one-level central screw that connects implant 1 and compound abutment 2. The upper end of the composite base 2 is a round table 22 for connecting with the titanium temporary base 3, and a threaded hole 221 extending along the central axis is formed in the upper end surface of the round table 22. The lower end of the titanium temporary base 3 is provided with a connecting hole 31 for connecting with the round table 22 of the composite base 2, and the round table 22 and the connecting hole 31 are sleeved and matched to limit the displacement of the composite base 2 and the titanium temporary base 3 in the radial direction. The titanium temporary abutment 3 is further provided with a through hole 32 extending along its central axis, and the secondary central screw 5 passes through the through hole 32 of the titanium temporary abutment 3 and is connected with the screw hole 221 of the composite abutment 2. The through hole 32 includes a first through hole 321 and a second through hole 322 arranged up and down, the diameter of the first through hole 321 is smaller than that of the second through hole 322, a step is formed between the first through hole 321 and the second through hole 322, and thus the nut of the secondary center screw 5 abuts against the step of the titanium temporary abutment 3, thereby axially fixing the composite abutment 2 and the titanium temporary abutment 3. The upper end of the titanium temporary abutment 3 is also provided with a crown mounting part 33, and the crown 4 is sleeved outside the crown mounting part 33 and is adhered and fixed.
An anti-rotation structure 6 is provided between the composite abutment 2 and the titanium temporary abutment 3, so as to prevent the composite abutment 2 and the titanium temporary abutment 3 from rotating relatively along the central axis. The round table 22 of the composite base table 2 is sleeved with the connecting hole 31 of the titanium temporary base table 3, the round table 22 is small at the upper part and big at the lower part, the outer side surface of the round table 22 is provided with a certain taper to form a conical surface, and the outer conical surface of the round table 22 corresponds to the inner conical surface of the connecting hole 31. The sleeved connection mode plays a role in guiding when the composite base station 2 and the titanium temporary base station 3 are installed, so that the composite base station 2 and the titanium temporary base station 3 can be installed and positioned conveniently.
Referring to fig. 2, 4 and 5, the anti-rotation structure 6 includes a first anti-rotation portion 61 provided at the composite abutment and a second anti-rotation portion 62 provided at the titanium temporary abutment. The first anti-rotation portion 61 is a semicircular groove provided on the outer conical surface, and the second anti-rotation portion 62 is a semicircular rib provided on the inner conical surface, so that the outer conical surface of the composite abutment and the inner conical surface of the titanium temporary abutment form an anti-rotation conical surface. The first anti-rotation portion 61 and the second anti-rotation portion 62 are provided in a concave-convex correspondence so as to prevent the composite abutment 2 and the titanium temporary abutment 3 from rotating relative to each other. The clearance between the outer conical surface and the inner conical surface of the sleeve joint is smaller, and the anti-rotation parts are arranged on the outer conical surface and the inner conical surface of the sleeve joint, so that the first anti-rotation part 61 and the second anti-rotation part 62 are more tightly matched, and the anti-rotation structure is more reliable. The round bench 21 of the composite base 2 is about 3mm in height, about 5mm in base width and about 4mm in inclined outer conical surface, the implant restoration is small in size, the cross sections of the first anti-rotation part 61 and the second anti-rotation part 62 are arranged in a semicircular mode, the surfaces of the first anti-rotation part 61 and the second anti-rotation part 62 are round, abrasion is not easy to occur after long-time use, and the service life and reliability of the anti-rotation structure are improved. The diameters of the first anti-rotation portion 61 and the second anti-rotation portion 62 are about 1mm. In other embodiments, the cross-sections of the first anti-rotation portion 61 and the second anti-rotation portion 62 may also be rectangular, triangular, or the like, which is capable of bi-directional anti-rotation.
Referring to fig. 2 and 4, in order to make the anti-rotation structure 6 more reliable, at least one set of first anti-rotation portions 61 and second anti-rotation portions 62 are provided, in this example, the first anti-rotation portions 61 and second anti-rotation portions 62 have four sets, that is, the first anti-rotation portions 61 and second anti-rotation portions 62 have four sets, and are uniformly distributed along the rotation axes of the circular table 22 and the connection hole 31, respectively. In addition, the first anti-rotation parts 61 and the second anti-rotation parts 62 are respectively and uniformly arranged to ensure that the stress of the anti-rotation structure is uniform, and the anti-rotation parts of four groups are arranged to ensure that the anti-rotation parts are easier to machine and shape on the basis of meeting the requirements of the strength and the reliability of the anti-rotation structure. In other embodiments, the first anti-rotation portion 61 and the second anti-rotation portion 62 may be one, two, six, or the like in number, as long as the anti-rotation requirement can be satisfied.
Referring to fig. 2 and 4, since the composite abutment 2 and the titanium temporary abutment 3 are vertically sleeved, the first anti-rotation portion 61 and the second anti-rotation portion 62 should be provided at the upper ends of the outer cone and the inner cone, respectively, for installation convenience. In this example, the first anti-rotation portion 61 penetrates through the upper and lower end surfaces of the circular truncated cone 22, and the second anti-rotation portion 62 penetrates through the upper and lower end surfaces of the connecting hole 31, so that the lengths of the first anti-rotation portion 61 and the second anti-rotation portion 62 are increased, and the strength and reliability of the anti-rotation structure are further improved.
In the above embodiment, the first anti-rotation portion 61 is a groove formed by concave downward from the outer conical surface of the circular truncated cone 22 of the composite abutment 2, and the second anti-rotation portion 62 is a rib formed by convex upward from the inner conical surface of the connecting hole 31 of the titanium temporary abutment 3, but is not limited to the first anti-rotation portion 61 being concave downward and the second anti-rotation portion 62 being convex upward. Referring to fig. 6 and 7, in other embodiments, the structures of the first anti-rotation portion 61 and the second anti-rotation portion 62 are opposite, that is, the first anti-rotation portion 61 is a rib formed to protrude upward from the outer conical surface, and the second anti-rotation portion 62 is a groove formed to be recessed from the inner conical surface. The round table 22 is sleeved with the connecting hole 31 to be matched with the similar shaft hole, the round table 22 with the shape similar to the shaft is provided with the convex ribs, the concave groove is processed in the connecting hole 31, the processing difficulty is lower, and the processing precision can be improved.
According to the invention, the anti-rotation structure is arranged on the composite base station 2 and the titanium temporary base station 3, so that the relative rotation between the composite base station 2 and the titanium temporary base station 3 is prevented, the looseness of the secondary central screw 5 between the composite base station 2 and the titanium temporary base station 3 is further avoided, the stability of the composite base station 2 and the titanium temporary base station 3 is maintained, and the service life of the planting restoration is prolonged.
The remaining non-described parts are prior art.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereto, and any modifications and equivalent substitutions made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (8)
1. The implant prosthesis is characterized by comprising an implant body, a composite abutment, a titanium temporary abutment and a dental crown which are sequentially connected from bottom to top, wherein the implant body is used for fixing the implant prosthesis on an alveolar bone, the connection between the composite abutment and the titanium temporary abutment is in threaded connection, and an anti-rotation structure is arranged between the composite abutment and the titanium temporary abutment so as to prevent the composite abutment and the titanium temporary abutment from rotating relatively.
2. The implant restoration body with the anti-rotation conical surface according to claim 1, wherein a round table is arranged at the upper end of the composite base table, a connecting hole is arranged at the lower end of the titanium temporary base table, the round table is sleeved with the connecting hole to enable the composite base table to be sleeved with the titanium temporary base table, and the outer conical surface of the round table corresponds to the inner conical surface of the connecting hole.
3. The implant prosthesis of claim 2, wherein the anti-rotation structure comprises a first anti-rotation portion disposed on the composite abutment and a second anti-rotation portion disposed on the titanium temporary abutment, the outer tapered surface of the composite abutment is provided with a first anti-rotation portion that is concave downward or convex upward from the outer tapered surface, the inner tapered surface of the titanium temporary abutment is provided with a second anti-rotation portion that is convex upward or concave downward from the inner tapered surface, the first anti-rotation portion and the second anti-rotation portion are disposed in concave-convex correspondence and the first anti-rotation portion and the second anti-rotation portion cooperate to prevent relative rotation of the composite abutment and the titanium temporary abutment.
4. The implant prosthesis of claim 3, wherein the first and second anti-rotation portions are each a plurality of and the number and positions of the first and second anti-rotation portions correspond.
5. The implant prosthesis of claim 4, wherein the first anti-rotation portions are four and are uniformly arranged along the circular table rotation axis of the composite abutment; the second anti-rotation parts are four and are uniformly arranged along the rotating shaft of the connecting hole of the titanium temporary base.
6. A planting prosthesis having an anti-rotation taper according to claim 3, wherein the first anti-rotation portion penetrates the upper and lower end surfaces of the circular truncated cone, and the second anti-rotation portion penetrates the upper and lower end surfaces of the connecting hole.
7. The implant prosthesis of claim 3, wherein the first and second anti-rotation portions are each semi-circular in cross-section.
8. The implant prosthesis with the anti-rotation conical surface according to claim 2, wherein the top end of the composite abutment is provided with a threaded hole coaxial with the round table, a through hole coaxial with the connecting hole is arranged at the central shaft of the titanium temporary abutment, and the threaded connecting piece penetrates through the through hole to be matched with the threaded hole, so that the composite abutment and the titanium temporary abutment form threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310698668.7A CN116687597A (en) | 2023-06-13 | 2023-06-13 | Planting restoration body with anti-rotation conical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310698668.7A CN116687597A (en) | 2023-06-13 | 2023-06-13 | Planting restoration body with anti-rotation conical surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116687597A true CN116687597A (en) | 2023-09-05 |
Family
ID=87842925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310698668.7A Withdrawn CN116687597A (en) | 2023-06-13 | 2023-06-13 | Planting restoration body with anti-rotation conical surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116687597A (en) |
-
2023
- 2023-06-13 CN CN202310698668.7A patent/CN116687597A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20230905 |