CN117084814A - Self-discharging formula dental implant draw gear - Google Patents
Self-discharging formula dental implant draw gear Download PDFInfo
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- CN117084814A CN117084814A CN202210512560.XA CN202210512560A CN117084814A CN 117084814 A CN117084814 A CN 117084814A CN 202210512560 A CN202210512560 A CN 202210512560A CN 117084814 A CN117084814 A CN 117084814A
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- 239000004053 dental implant Substances 0.000 title claims abstract description 44
- 238000007599 discharging Methods 0.000 title claims description 16
- 239000007943 implant Substances 0.000 claims abstract description 63
- 210000000988 bone and bone Anatomy 0.000 claims description 27
- 230000006978 adaptation Effects 0.000 claims 1
- 208000015181 infectious disease Diseases 0.000 abstract description 5
- 238000002513 implantation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 210000002082 fibula Anatomy 0.000 description 9
- 210000004373 mandible Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 210000001847 jaw Anatomy 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 206010061218 Inflammation Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 208000006735 Periostitis Diseases 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003460 periosteum Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Classifications
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- 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
- A61C8/003—Transmandibular implants
-
- 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
- A61C8/0089—Implanting tools or instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2/2803—Bones for mandibular reconstruction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2/2803—Bones for mandibular reconstruction
- A61F2002/2807—Chin implants
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Public Health (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Epidemiology (AREA)
- Cardiology (AREA)
- Dentistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Dental Prosthetics (AREA)
Abstract
The application discloses a self-unloading type tooth implantation traction device which comprises an implant, a connecting screw rod and a base body. According to the application, the first internal thread and the second internal thread are arranged on the inner sleeve of the base body at intervals, the first external thread and the second external thread are arranged on the outer side of the connecting screw rod for pushing the implant to rise at intervals, when the connecting screw rod rotates to the top of the base body, the connecting screw rod is in idle rotation without threaded connection with the inner sleeve, so that whether the dental implant retractor structure rotates to the maximum height position can be accurately judged when the dental implant retractor is used, the risks of secondary operation and infection caused by misjudgment are avoided, when the dental implant retractor is pulled in place, the sleeve is automatically detached, and the dental implant retractor is not required to be detached by using a detaching wrench, thereby simplifying the operation flow.
Description
Technical Field
The application relates to the technical field of jaw built-in traction planting devices, in particular to a self-discharging type dental planting traction device.
Background
The vascularized fibula tissue flap is used as a main force skin flap for reconstructing the mandible, and the shaping of the mandible horizontal segment reconstruction graft is generally carried out by a three-segment method, a four-segment method and a five-segment method, wherein the main reference basis is an operation specimen or a mandible preformed template, such as a mandible reconstruction plate, and obviously, the more segments are, the more the reconstructed mandible is in a shape close to the original shape, but the operation difficulty and the risk of the graft segment blood loss and vascularization are increased.
In the process of reconstructing the mandible, the bone graft segment is divided into an upper bone block and a lower bone block, and a dental implant retractor (DID) is required to adjust the distance between the upper bone block and the lower bone block of the bone graft segment, so that the thickness of the bone graft segment and the thickness of the mandible are matched by using periosteum growth.
In the jaw built-in traction planting device (01238497.6), the device integrates a jaw tractor and dental implant, and comprises an implant, a covering screw, a longitudinal traction implant formed by fixed blades and a guide sleeve formed by a lifting screw, a connecting sleeve and the fixed blades. The principle is as follows: the upper movable bone block is fixed through the external thread of the implant, the internal thread of the sleeve is used for transmitting the thrust of the lifting screw, and when the lifting screw in the guide sleeve rotates anticlockwise, the upper movable bone block is pushed to move upwards. However, the existing dental implant retractors have the defects that: 1. the implant is unstable to be fixed with the upper bone block, the implant is required to be fixed with the aid of the blade, and the implant is taken out by secondary operation after being stable, so that the operation wound and the operation difficulty are increased; 2. after the guide sleeve is removed, soft tissues grow in from the bottom of the implant, so that peri-implant inflammation and even retrograde infection are caused; 3. after the sleeve is completely pulled and removed, the upper traction bone blocks often return to the original positions, so that the traction fails; 4. the device is only fixed with the upper bone segment, has no stable retention with the lower bone segment, and increases the instability of the implant.
In Dental Implant Distractors (DID) Chenping, z., et al, dental implant distractor combined with free fibular flap: a new design for simultaneous functional mandibular recourse.j Oral Maxillofac Surg,2012.70 (11): p.2687-700, dental implant distractors were developed by analysis of results of animal experiments and clinical experiments, which, in addition to retaining the characteristics of a jaw built-in traction implant device, reduced surgical difficulty and trauma by removing fixed blades, increased implant stability by adding base screws. The main structure comprises an implant, a covering screw, a longitudinal traction implant formed by a base screw and a retention screw, and a traction device formed by a traction sleeve, a screw rod and a traction cap. The following disadvantages still exist: 1. although the stability of the implant is enhanced by adding the base screw, the process of pulling out the traction sleeve and replacing the base screw is complicated, and a doctor often cannot determine the position of the base screw after removing the sleeve; 2. after the traction sleeve is pulled out, the upper bone segment sometimes returns to the position before traction, so that the traction effect is affected; 3. the stability of implant and lower bone section can be increased to base screw and retention screw, but when implant peri-inflammatory needs to be got rid of appears in implant artificial tooth, often need secondary operation to get rid of implant upper and lower part structure simultaneously, great increase the operation wound.
In the dental implant tractor (CN 201720100525.1), the device automatically completes the installation of the base body and the sealing of the connecting screw after the completion of the traction, and the base body is not required to be installed again for sealing, thereby simplifying the operation steps, reducing the clinical operation difficulty and simultaneously avoiding the problem that the upper bone segment slides down to the original position. The device comprises an implant assembly and a traction assembly, wherein the implant assembly comprises an implant, a sealing screw and a base body, and the traction assembly comprises a connecting screw, a traction screw, an inner sleeve and an outer sleeve. The following disadvantages still exist: 1. the screw installation is automatically completed after the traction is completed, the base body is not required to be installed again, but when the traction is completed, whether the screw is rotated in place or not cannot be accurately determined; 2. the design of the thread on the neck of the implant is not easy to clean, and the occurrence of peri-implant inflammation is increased.
Therefore, the currently adopted dental implant tractor structure is difficult to judge whether the dental implant tractor structure rotates to the maximum height position, and whether the dental implant tractor structure rotates in place is judged only by experience due to the interference of the clamping of foreign matters on the thread of the neck of an implant, and once the judgment is wrong, the risk of secondary operation and infection is caused. Therefore, the technical problem of accurately determining whether the tooth planting tractor structure is rotated in place or not and automatically detaching the outer sleeve becomes the most critical one.
Disclosure of Invention
The application aims to provide an optimized self-unloading type dental implant traction (DID) device, which is used for solving the technical problem that the existing adopted dental implant traction device structure is difficult to judge whether the existing dental implant traction device structure rotates to the maximum height position or not and simultaneously realizing automatic sleeve detachment.
In order to achieve the above object, in one embodiment of the present application, a self-discharging type dental implant traction device is provided, which includes an implant, a connecting screw, and a base body; the bottom end of the implant is movably connected with the top end of the connecting screw rod, the implant and the connecting screw rod are accommodated in the base body, and the connecting screw rod can axially rotate in the base body; the base body comprises an inner sleeve, a first internal thread and a second internal thread are arranged on the inner side wall of the inner sleeve at intervals in the radial direction, the first internal thread is positioned at the lower part of the inner sleeve, the second internal thread is positioned at the upper part of the inner sleeve, a first smooth area is arranged between the first internal thread and the second internal thread, and a second smooth area is arranged from the second internal thread to the top end of the inner sleeve; the outer side wall of the connecting screw is radially provided with a first external thread and a second external thread which are arranged at intervals, the first external thread is positioned at the lower part of the connecting screw, the second external thread is positioned at the upper part of the connecting screw, and a third smooth area is arranged between the first external thread and the second external thread; the length of the third smooth region is equal to the minimum distance between the first smooth region and the second smooth region; when the connecting screw rod rotates to the top of the base body, the position of the first external thread in the radial direction corresponds to the position of the first smooth area, the position of the second external thread in the radial direction corresponds to the position of the second smooth area, and the position of the third smooth area in the radial direction corresponds to the position of the second internal thread, so that no threaded connection exists between the connecting screw rod and the inner sleeve to idle.
As a preferred embodiment, the top end of the implant is provided with a cavity, and the cavity can be screwed with a closing screw or a tooth base.
As a preferred embodiment, the top end of the implant is in an inverted cone structure, and the cavity is arranged in the inverted cone structure.
As a preferred embodiment, the outer side of the top end of the implant is provided with external threads combined with bone.
As a preferred embodiment, the outer side of the top end of the base body is provided with external threads combined with bone.
As a preferred embodiment, the base body further comprises an outer sleeve threaded outside the inner sleeve.
As a preferred embodiment, the length of the outer sleeve is smaller than the length of the inner sleeve.
As a preferred embodiment, a first groove is formed in the bottom of the implant, a first protrusion is formed in the top end of the connecting screw, and the first protrusion is matched with the first groove.
As a preferred embodiment, the base body further comprises a traction screw rod, the traction screw rod is in threaded connection with the inner sleeve, the traction screw rod is located below the connecting screw rod, and the diameter of the traction screw rod is the same as that of the connecting screw rod.
As a preferred embodiment, a second groove is formed in the bottom of the connecting screw, a second protrusion is formed in the top end of the traction screw, and the second protrusion is matched with the second groove.
The application has the beneficial effects that the optimized self-discharging type dental implant traction device is provided, the first internal thread and the second internal thread are arranged on the inner sleeve of the base body at intervals, the first external thread and the second external thread are arranged on the outer side of the connecting screw rod which pushes the implant to rise at intervals, when the connecting screw rod rotates to the top of the base body, the connecting screw rod and the inner sleeve are free of threaded connection and idle, whether the dental implant traction device structure rotates to the maximum height position or not can be accurately judged when the optimized self-discharging type dental implant traction device is used, the risk of secondary operation and infection caused by misjudgment is avoided, and when the traction screw rod is pulled to the base body to be in place, the traction sleeve and the base body are automatically detached.
Drawings
The technical scheme and other beneficial effects of the present application are presented by the detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a self-discharging dental implant traction device according to an embodiment of the present application at the beginning of traction.
Fig. 2 is a schematic structural diagram of the self-unloading dental implant traction device in the traction process according to the embodiment of the application.
Fig. 3 is a schematic structural diagram of the self-unloading dental implant traction device according to the embodiment of the application when the traction is completed.
The components in the figure are identified as follows:
an implant 1, a connecting screw rod 2, a base body 3,
a dental implant retractor 10, a cavity 11, a first recess 12,
the closing screw 13, the first external thread 21, the second external thread 22,
the third smooth area 23, the first protrusion 24, the second recess 25,
an inner sleeve 31, an outer sleeve 32, a traction screw 33,
the first internal thread 311, the second internal thread 312, the first smooth region 313,
second smooth region 314, second protrusion 331.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Specifically, referring to fig. 1 to 3, an embodiment of the present application provides an optimized self-unloading type dental implant traction device, which is mainly applied to position adjustment after bone osteotomy, and realizes shaping of a mandibular horizontal segment reconstruction bone graft.
Referring to fig. 1 to 3, the self-unloading type dental implant traction device 10 includes an implant 1, a connecting screw 2 and a base body 3; the bottom end of the implant 1 is movably connected with the top end of the connecting screw rod 2, the implant 1 and the connecting screw rod 2 are accommodated in the base body 3, and the connecting screw rod 2 can axially rotate in the base body 3; the base body 3 comprises an inner sleeve 31, wherein a first internal thread 311 and a second internal thread 312 are arranged on the inner side wall of the inner sleeve 31 at intervals in the radial direction, the first internal thread 311 is positioned at the lower part of the inner sleeve 31, the second internal thread 312 is positioned at the upper part of the inner sleeve 31, a first smooth area 313 is arranged between the first internal thread 311 and the second internal thread 312, and a second smooth area 314 is arranged from the second internal thread 312 to the top end of the inner sleeve 31; the outer side wall of the connecting screw rod 2 is radially provided with a first external thread 21 and a second external thread 22 which are arranged at intervals, the first external thread 21 is positioned at the lower part of the connecting screw rod 2, the second external thread 22 is positioned at the upper part of the connecting screw rod 2, and a third smooth area 23 is arranged between the first external thread 21 and the second external thread 22; the length of the third smooth region 23 is equal to the minimum distance between the first smooth region 313 and the second smooth region 314.
Fig. 1 is a schematic structural view of the dental implant retractor 10 at the beginning of the retraction, and the connecting screw rod 2 moves up in the inner sleeve 31 of the base body 3 in a rotating manner, so as to drive the implant 1 to rise. In this process, the positions of the first external thread 21 and the second external thread 22 in the radial direction correspond to the positions of the first internal thread 311.
Fig. 2 is a schematic structural diagram of the self-unloading dental implant traction device according to the embodiment of the present application during the traction process, the connecting screw 2 rotates in the inner sleeve 31 of the base body 3 to continue to move upwards, at this time, the position of the first external thread 21 in the radial direction corresponds to the position of the first internal thread 311, and the position of the second external thread 22 in the radial direction corresponds to the position of the first smooth area 313, but since the first external thread 21 is screwed with the first internal thread 311, the implant 1 can still be driven to rise continuously.
Fig. 3 is a schematic structural diagram of the self-unloading dental implant traction device according to the embodiment of the application when the traction is completed. When the connecting screw 2 is rotated to the top of the base body 3, the position of the first external thread 21 in the radial direction corresponds to the position of the first smooth area 313, the position of the second external thread 22 in the radial direction corresponds to the position of the second smooth area 314, and the position of the third smooth area 23 in the radial direction corresponds to the position of the second internal thread 312, so that the connecting screw 2 and the inner sleeve 31 are free from the screw connection to idle. When the traction bolt is pulled to the base body to be in place, the traction sleeve and the base body are automatically detached, and the disassembly wrench is not needed to be used for disassembly, so that the operation flow is simplified. When the traction reaches the expected height, the traction screw driver can rotate in a 'run-out' mode to prompt the completion of traction, and provide accurate prompts for the operation of doctors so as to avoid repeated operation and breakage of traction screws caused by overlarge force.
It will be appreciated that, in order to facilitate the manufacture of the first external thread 21 and the second external thread 22, the portions where the first external thread 21 and the second external thread 22 are provided may be made as a single-stage structure, respectively, which may form the connecting screw 2 by being clamped, so as to have the first external thread 21 and the second external thread 22 arranged at intervals.
As a preferred embodiment, the top end of the implant 1 is provided with a cavity 11, and the cavity 11 can be screwed with a closing screw 13 or a dental base.
As a preferred embodiment, the top end of the implant 1 is in an inverted cone structure, and the cavity 11 is arranged in the inverted cone structure. That is, the implant 1 has an inverted cone structure, so that the retention force is increased, the stability of the implant 1 is improved, and the sleeve is convenient to detach.
As a preferred embodiment, the outer side of the top end of the implant 1 is provided with external threads for being combined with bone.
As a preferred embodiment, the outer side of the top end of the base body 3 is provided with external threads for being combined with bone.
As a preferred embodiment, the base body 3 further comprises an outer sleeve 32, the outer sleeve 32 being threaded outside the inner sleeve 31.
As a preferred embodiment, the length of the outer sleeve 32 is less than the length of the inner sleeve 31.
As a preferred embodiment, the bottom of the implant 1 is provided with a first groove 12, the top end of the connecting screw 2 is provided with a first protrusion 24, and the first protrusion 24 is matched with the first groove 12.
As a preferred embodiment, the base body 3 further includes a traction screw 33, the traction screw 33 is in threaded connection with the inner sleeve 31, the traction screw 33 is located below the connecting screw 2, and the traction screw 33 has the same diameter as the connecting screw 2.
As a preferred embodiment, the bottom of the connecting screw 2 is provided with a second groove 25, the top end of the traction screw 33 is provided with a second protrusion 331, and the second protrusion 331 is adapted to the second groove 25.
When the device is used, the fibula is firstly divided into upper and lower bone segments, the position of the traction screw 33 in the inner sleeve 31 is regulated by the connecting screw 2, the implant 1 is driven by the traction screw 33 to extend out of the base body 3, the lower fibula bone segment is fixed with two sides of the mandible, the upper fibula bone segment is driven by the implant 1 to increase the distance between the lower fibula bone segment and the upper fibula bone segment, and the implant 1 finally stays in the traction upper and lower bone segments to perform the tooth root function; the closing screw 13 is used for closing the top end of the implant 1, and the closing screw 13 can be replaced by a dental base to prepare for the connection of the upper dental crown structure; the base body 3 is used for fixing the lower bone segment and the implant 1, so that the stability of the implant 1 is improved.
When the interval between the lower fibula bone segment and the upper fibula bone segment is adjusted, the connecting screw rod 2 is connected with the bottom end of the implant 1, the implant 1 is pushed to vertically upwards in the traction process, and the implant is fixed with the lower fibula bone segment after the traction is completed; the traction screw 33 is positioned below the connecting screw 2 and in the sleeve, and is automatically separated from the connecting screw 2 above when the connecting screw 2 is pushed upwards to finish traction in the traction process, so that the rotation is in an idle state, and an operator is reminded of the traction to reach the highest point; the inner sleeve 31 is internally threaded, guiding the connecting screw 2 into traction in the traction process; the outer sleeve 32 is connected to the inner sleeve 31 for manual completion of the traction by the physician.
The application has the beneficial effects that the self-unloading type dental implant traction (DID) device is optimized, the first internal thread and the second internal thread are arranged on the inner sleeve of the base body at intervals, the first external thread and the second external thread are arranged on the outer side of the connecting screw rod which pushes the implant to ascend at intervals, when the connecting screw rod rotates to the top of the base body, the connecting screw rod and the inner sleeve are in idle running without threaded connection, so that the situation that whether the dental implant traction device structure rotates to the maximum height position is accurately judged when the self-unloading type dental implant traction device is used, the risk of secondary operation and infection caused by misjudgment is avoided, and after the traction screw bolt is pulled to the base body to be in place, the traction sleeve and the base body are automatically detached without using a disassembly wrench to disassemble, so that the operation flow is simplified.
The foregoing has described in detail embodiments of the present application, and specific examples have been employed herein to illustrate the principles and embodiments of the present application, the above description of the embodiments being only for the purpose of aiding in the understanding of the technical solution and core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (10)
1. The self-unloading type tooth planting traction device is characterized by comprising an implant, a connecting screw rod and a base body; the bottom end of the implant is movably connected with the top end of the connecting screw rod, the implant and the connecting screw rod are accommodated in the base body, and the connecting screw rod can axially rotate in the base body;
the base body comprises an inner sleeve, a first internal thread and a second internal thread are arranged on the inner side wall of the inner sleeve at intervals in the radial direction, the first internal thread is positioned at the lower part of the inner sleeve, the second internal thread is positioned at the upper part of the inner sleeve, a first smooth area is arranged between the first internal thread and the second internal thread, and a second smooth area is arranged from the second internal thread to the top end of the inner sleeve;
the outer side wall of the connecting screw is radially provided with a first external thread and a second external thread which are arranged at intervals, the first external thread is positioned at the lower part of the connecting screw, the second external thread is positioned at the upper part of the connecting screw, and a third smooth area is arranged between the first external thread and the second external thread; the length of the third smooth region is equal to the minimum distance between the first smooth region and the second smooth region;
when the connecting screw rod rotates to the top of the base body, the position of the first external thread in the radial direction corresponds to the position of the first smooth area, the position of the second external thread in the radial direction corresponds to the position of the second smooth area, and the position of the third smooth area in the radial direction corresponds to the position of the second internal thread, so that no threaded connection exists between the connecting screw rod and the inner sleeve to idle.
2. The self-discharging dental implant traction device according to claim 1, characterized in that,
the top of the implant is provided with a cavity, and a closing screw or a tooth base can be screwed in the cavity.
3. The self-discharging dental implant traction device according to claim 2, characterized in that,
the top of the implant is of an inverted cone structure, and the cavity is arranged in the inverted cone structure.
4. The self-discharging dental implant traction device according to claim 1, characterized in that,
the outer side of the top end of the implant is provided with external threads combined with bones.
5. The self-discharging dental implant traction device according to claim 1, characterized in that,
and external threads combined with bones are arranged on the outer side of the top end of the base body.
6. The self-discharging dental implant traction device according to claim 1, characterized in that,
the base body further comprises an outer sleeve which is threaded outside the inner sleeve.
7. The self-discharging dental implant traction device according to claim 6, wherein,
the length of the outer sleeve is less than the length of the inner sleeve.
8. The self-discharging dental implant traction device according to claim 1, characterized in that,
the bottom of the implant sets up first recess, connecting screw's top is equipped with first arch, first arch with first recess looks adaptation.
9. The self-discharging dental implant traction device according to claim 1, characterized in that,
the base body further comprises a traction screw rod, the traction screw rod is in threaded connection with the inner sleeve, the traction screw rod is located below the connecting screw rod, and the diameters of the traction screw rod and the connecting screw rod are the same.
10. The self-discharging dental implant traction device according to claim 9, wherein,
the bottom of the connecting screw is provided with a second groove, the top end of the traction screw is provided with a second bulge, and the second bulge is matched with the second groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512560.XA CN117084814A (en) | 2022-05-12 | 2022-05-12 | Self-discharging formula dental implant draw gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512560.XA CN117084814A (en) | 2022-05-12 | 2022-05-12 | Self-discharging formula dental implant draw gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117084814A true CN117084814A (en) | 2023-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210512560.XA Pending CN117084814A (en) | 2022-05-12 | 2022-05-12 | Self-discharging formula dental implant draw gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117084814A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117860409A (en) * | 2024-01-04 | 2024-04-12 | 广东中科安齿生物科技有限公司 | Lifting implant and lifting adjusting method thereof |
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2022
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117860409A (en) * | 2024-01-04 | 2024-04-12 | 广东中科安齿生物科技有限公司 | Lifting implant and lifting adjusting method thereof |
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