CN113786252B - Oral cavity is planted screwdriver holder - Google Patents
Oral cavity is planted screwdriver holder Download PDFInfo
- Publication number
- CN113786252B CN113786252B CN202111088235.7A CN202111088235A CN113786252B CN 113786252 B CN113786252 B CN 113786252B CN 202111088235 A CN202111088235 A CN 202111088235A CN 113786252 B CN113786252 B CN 113786252B
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- 210000000214 mouth Anatomy 0.000 title claims description 6
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 239000007943 implant Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 210000003128 head Anatomy 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004053 dental implant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000707 wrist Anatomy 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
- A61C8/0003—Not used, see subgroups
- A61C8/0009—Consolidating prostheses or implants, e.g. by means of stabilising pins
-
- 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
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 Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses an oral implanting screwdriver holder, which comprises a holder and a holding module connected with the holder; the holding module comprises an installation box and a threaded rod penetrating through the top end of the installation box and penetrating into the installation box, a knob positioned outside the installation box is arranged on the top end of the threaded rod, a fixed block is matched with the surface of the threaded rod in a sliding manner, a clamping plate is fixed on the fixed block, and the clamping plate is fixedly connected with a screwdriver. The device is simple in structure, suitable for various requirements, convenient to store in a detachable structure and high in practical application value.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a holder of an oral implanting screwdriver.
Background
Medical devices refer to instruments, devices, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items for use directly or indirectly in the human body, including computer software as required, the utility being obtained mainly by physical means, not by pharmacological, immunological or metabolic means, or by the participation of these means but only as an aid. The purpose is diagnosis, prevention, monitoring, treatment or alleviation of the disease; diagnosis, monitoring, treatment, alleviation or functional compensation of lesions; examination, substitution, regulation or support of physiological structures or physiological processes; support or maintenance of life; controlling pregnancy; by examining a sample from a human body, information is provided for medical or diagnostic purposes.
The dental implant screwdriver is an instrument used in implant surgery such as connecting an implant with a base and tightening a screw on the base. However, because the screwdriver has small volume and small operation space in the oral cavity, the retention is poor during use, and particularly relates to the fact that the upper and lower back teeth areas are easy to fall off and then fall into the oral cavity of a patient, danger is generated, and meanwhile, inconvenience is brought to the operation.
Therefore, how to provide a screwdriver holder that can form a good retaining effect for a screwdriver and is easy to adjust and operate is a problem to be solved by the person skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides an oral implant screwdriver holder which can adapt to different sizes of palms and different heights of screwdrivers of users, and can adjust the direction of the oral implant screwdriver holder for use on the upper and lower jaws.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an oral implanting screwdriver holder comprises a holder and a holding module connected with the holder;
the holding module comprises an installation box and a threaded rod penetrating through the top end of the installation box and penetrating into the installation box, a knob positioned outside the installation box is arranged on the top end of the threaded rod, a fixed block is matched with the surface of the threaded rod in a sliding manner, a clamping plate is fixed on the fixed block, and the clamping plate is fixedly connected with a screwdriver.
Further, a compression spring is arranged in the mounting box, the bottom end of the compression spring abuts against the inner wall of the mounting box, and the top end of the compression spring abuts against the bottom surface of the clamping plate.
The technical scheme and the further technical scheme have the beneficial effects that: when the screwdrivers with different heights are required to be replaced, the position fixing plate of the fixing block is changed to push the position of the screwdrivers to the proper use position, so that the screwdrivers are more convenient to use.
Further, the holder comprises a holding part and a fixing frame connected with the holding part by adopting a connecting component, and the fixing frame is connected with the holding module.
Still further, coupling assembling include with the rubber pole of portion fixed connection grips, rubber pole surface is provided with the recess, rubber pole surface cover is equipped with the slide bar, the slide bar inner wall is provided with the slider, the slider with the recess matches, slide bar one end is fixed with the bearing, bearing outer wall fixed mounting has the thread bush, the thread bush is the U type, the thread bush inner wall with mount threaded connection.
The beneficial effects of the above further technical scheme are: through coupling assembling's slider, slide in the recess, can establish the thread bush cover to the mount, the mount is close to coupling assembling's one end and is equipped with the screw thread, thread bush and mount threaded connection, can dismantle when not using like this, conveniently carries.
Still further, the portion of gripping is hollow structure, be connected with the push pedal through the guide arm in the portion of gripping, the push pedal with the offside fixed mounting of guide arm connection side has the rubber block, the rubber block runs through and stretches out the portion of gripping surface, guide arm surface cover is equipped with first spring, first spring both ends support respectively in the push pedal with the portion of gripping inner wall.
The beneficial effects of the above further technical scheme are: through the multiunit rubber piece of installation, can let the user by the part removal recess that holds down when holding, compression push pedal holds the organism, and after using the completion first spring promotes the push pedal, can push back the rubber piece coplanar, alright adapt to each different palm size from this, let the doctor use more handily.
Further, the device also comprises a connecting module, wherein the connecting module comprises a connecting box and an adjusting part;
the fixing frame is provided with a connecting groove, one end of the connecting box is provided with an opening, the other end of the connecting box is sealed, the sealing end is matched with the connecting groove and is clamped in the connecting groove, the opening end is covered with a vertical plate, and the vertical plate is connected with the holding module;
the adjusting part comprises a fixed column, a rectangular sliding rod and a positioning rod; the fixing column is fixed on the side surface of the vertical plate, which is positioned in the connecting box; the fixing column is of a rectangular hollow structure, the free end of the rectangular sliding rod is inserted into the fixing column in a matching sliding manner, and the fixed end of the rectangular sliding rod is fixed on the inner wall of the sealing end of the connecting box;
the fixed column surface is provided with the constant head tank, the locating lever interlude set up in on the joint box, the locating lever bottom with the constant head tank matches, locating lever surface cover is equipped with the third spring, the third spring top support in the joint box inner wall, the bottom support in the locating lever surface is provided with on the limiting plate.
The beneficial effects of the above further technical scheme are: the locating lever is pulled upwards, the locating lever can break away from the constant head tank, the third spring can be compressed simultaneously, when the locating lever breaks away from the constant head tank, the installation case is pulled, the installation case can drive the riser and the fixed column to move, the fixed column can slide on the rectangular slide bar, when pulling required position, loosen the locating lever, the third spring can make the locating lever reset and can block into another constant head tank, then can adjust screwdriver and mount distance, can be applicable to the user that tiger's mouth to fingertip distance is different.
Still further, the spread groove is the circular groove, the sealed end of spread box is provided with the flange that gos deep into the spread groove, the flange inner wall encircles and has arranged the cavity guide bar, there is the stopper through second spring elastic connection in the guide bar, the spread groove lateral wall is provided with the spacing groove, a lateral wall of spacing groove along the circular groove direction is the inclined plane structure, and another lateral wall is the right angle structure, the stopper with the spacing groove matches.
The beneficial effects of the above further technical scheme are: through the inside stopper of connection box and the spacing groove matching of mount, when the direction of needs rotation screwdriver, rotate the connection box compression second spring and remove the stopper along the inclined plane and rotate the screwdriver to suitable position stopper and spacing groove chucking again and fix, can overturn the practical with the adaptation upper and lower jaw with the screwdriver, let the doctor more handy when using.
Still further, the fixed column is the hollow structure inner wall of rectangle and is provided with the limiting plate, the free end of rectangle slide bar is provided with the stopper, avoids stretching excessively to make and holds the module and link module break away from.
Compared with the prior art, the invention discloses the holder of the oral implanting screwdriver, which has the following beneficial effects:
the invention has simple structure, can be adapted to use when facing different palm sizes, can be disassembled when not in use through the connecting component, is convenient to store, and can be more convenient when in use by only rotating the knob and changing the position of the fixing block when the screwdrivers with different heights need to be replaced, and the fixing plate can push the position of the screwdrivers to the proper use position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall block diagram of an oral implant screwdriver holder according to the present invention;
FIG. 2 is a schematic view of a part of a connection structure of a holder of an oral implant screwdriver according to the present invention;
fig. 3 is a schematic view of a part of a connection structure of a holder of an oral implant screw driver according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-3, an oral implant screwdriver holder comprises a holder and a holding module connected with the holder;
the holder comprises a holding part 1 and a fixing frame 3 connected with the holding part 1 by adopting a connecting component 2, wherein the fixing frame 3 is connected with the holding module.
The holding part 1 is of a hollow structure, a push plate 103 is connected in the holding part 1 through a guide rod 101, a rubber block 104 is fixedly arranged on the opposite side of the connection side of the push plate 103 and the guide rod 101, the rubber block 104 penetrates through and extends out of the surface of the holding part 1, a first spring 102 spring is sleeved on the surface of the guide rod 101, and two ends of the first spring 102 are respectively abutted to the push plate 103 and the inner wall of the holding part 1.
The connecting assembly 2 comprises a rubber rod 201 fixedly connected with the holding part 1, a groove 202 is formed in the surface of the rubber rod 201, a sliding rod 205 is sleeved on the surface of the rubber rod 201, a sliding block is arranged on the inner wall of the sliding rod 205 and matched with the groove 202, a bearing 203 is fixed at one end of the sliding rod 205, a thread bush 204 is fixedly arranged on the outer wall of the bearing 203, the thread bush 204 is U-shaped, and the inner wall of the thread bush 204 is in threaded connection with the fixing frame 3.
The holding module comprises a mounting box 10 and a threaded rod 7 penetrating through the top end of the mounting box 10 and penetrating into the mounting box 10, a knob 6 positioned outside the mounting box 10 is arranged at the top end of the threaded rod 7, a fixed block 5 is arranged on the surface of the threaded rod 7 in a sliding matching manner, a clamping plate is fixed on the fixed block 5, and the clamping plate is fixedly connected with a screwdriver; the mounting box is internally provided with a compression spring 9, the bottom end of the compression spring 9 abuts against the inner wall of the mounting box 10, and the top end of the compression spring abuts against the bottom surface of the clamping plate 8.
A connecting module is further arranged between the holding module and the fixing frame 3, and comprises a connecting box 4 and an adjusting part;
the fixing frame 3 is provided with a connecting groove 31, one end of the connecting box 4 is provided with an opening, the other end of the connecting box is sealed, the sealing end is matched with the connecting groove 301 and is clamped in the connecting groove 301, the opening end is covered with a vertical plate 11, and the vertical plate 11 is connected with the holding module;
the adjusting part comprises a fixed column 12, a rectangular sliding rod 13 and a positioning rod 16; the fixed column 12 is fixed on the side surface of the vertical plate 11 positioned in the connecting box 4; the fixed column 12 is of a rectangular hollow structure, the free end of the rectangular sliding rod 13 is inserted into the fixed column 12 in a matching sliding manner, and the fixed end of the rectangular sliding rod is fixed on the inner wall of the sealing end of the connecting box 4;
the surface of the fixed column 12 is provided with a positioning groove 14, the positioning rod 16 is inserted and arranged on the connecting box 4, the bottom end of the positioning rod 16 is matched with the positioning groove 14, the surface of the positioning rod 16 is sleeved with a third spring 15, the top end of the third spring 15 is propped against the inner wall of the connecting box 4, and the bottom end of the third spring is propped against a limiting plate 161 arranged on the surface of the positioning rod 16.
The connecting groove 301 is a circular groove, a flange 405 penetrating into the connecting groove 301 is arranged at the sealing end of the connecting box 4, a hollow guide rod 403 is arranged on the inner wall of the flange 405 in a surrounding mode, a limiting block 402 is elastically connected in the guide rod 403 through a second spring 401, a limiting groove 302 is arranged on the side wall of the connecting groove 301, one side wall of the limiting groove 302 along the direction of the circular groove is of an inclined surface structure, the other side wall of the limiting groove 302 is of a right-angle structure, and the limiting block 402 is matched with the limiting groove 302.
The fixed column 12 is provided with a limiting plate 121 on the inner wall of the rectangular hollow structure, and a limiting block 131 is arranged at the free end of the rectangular sliding rod 13.
The principle of the technical scheme is as follows:
firstly, through a plurality of groups of rubber blocks 104 arranged on one side of the holding part 1, a part which is held by a user during holding can move down, the push plate 103 is compressed, the holding part 1 is held, after the use is completed, the push plate 103 is pushed by the first spring 102, the rubber blocks 104 can be pushed back to the same plane, so that the rubber blocks 104 can adapt to different palm sizes, a doctor can use the rubber blocks more easily, the rubber blocks 205 of the connecting assembly 2 slide in the grooves 202, the thread sleeve 204 can be sleeved on the fixing frame 3, one end of the fixing frame 3, which is close to the connecting assembly 2, is provided with threads, and the thread sleeve 204 is in threaded connection with the fixing frame 3, so that the rubber blocks can be detached when the screwdriver is not used, and the rubber blocks are convenient to carry; when the limiting block 402 of the connecting box 4 and the limiting groove 302 at one end of the fixing frame 3 are in the direction of rotating the screwdriver, the connecting box 4 is rotated to compress the second spring 401 to move the limiting block 402 to rotate the screwdriver to a proper position, the limiting block 402 and the limiting groove 302 are clamped and fixed again, the wrist does not need to be turned over when the screwdriver is required to be rotated to the upper jaw and the lower jaw for use, and a doctor can be more handy when using the screwdriver; when the screwdrivers with different heights need to be replaced, the knob 6 is only required to be rotated, the position of the fixed block 5 is changed, the clamping plate 8 can push the position of the screwdrivers to a proper use position, the screwdrivers are more convenient to use, the positioning rod 16 is pulled upwards, the positioning rod 16 can be separated from the positioning groove 14, the third spring 15 can be compressed, when the positioning rod 16 is separated from the positioning groove 14, the mounting box 10 is pulled, the mounting box 10 can drive the vertical plate 11 and the fixed column 12 to move, the fixed column 12 can slide on the rectangular slide bar 13, when the required position is pulled, the positioning rod 16 is released, the third spring 15 can enable the positioning rod 16 to reset and be clamped into the other positioning groove 14, and then the distance between the screwdrivers and the fixed frame 3 can be adjusted, so that the screwdrivers can be suitable for users with different hand lengths.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An oral cavity planting screwdriver holder is characterized by comprising a holder and a holding module connected with the holder;
the holding module comprises an installation box and a threaded rod penetrating through the top end of the installation box and penetrating into the installation box, a knob positioned outside the installation box is arranged at the top end of the threaded rod, a fixed block is matched with the surface of the threaded rod in a sliding manner, a clamping plate is fixed on the fixed block, and the clamping plate is fixedly connected with a screwdriver;
the holder comprises a holding part and a fixing frame connected with the holding part by adopting a connecting component, and the fixing frame is connected with the holding module;
the device also comprises a connecting module, wherein the connecting module comprises a connecting box and an adjusting part;
the fixing frame is provided with a connecting groove, one end of the connecting box is provided with an opening, the other end of the connecting box is sealed, the sealing end is matched with the connecting groove and is clamped in the connecting groove, the opening end is covered with a vertical plate, and the vertical plate is connected with the holding module;
the adjusting part comprises a fixed column, a rectangular sliding rod and a positioning rod; the fixing column is fixed on the side surface of the vertical plate, which is positioned in the connecting box; the fixing column is of a rectangular hollow structure, the free end of the rectangular sliding rod is inserted into the fixing column in a matching sliding manner, and the fixed end of the rectangular sliding rod is fixed on the inner wall of the sealing end of the connecting box;
the surface of the fixing column is provided with a positioning groove, the positioning rod is arranged on the connecting box in a penetrating way, the bottom end of the positioning rod is matched with the positioning groove, the surface of the positioning rod is sleeved with a third spring, the top end of the third spring is propped against the inner wall of the connecting box, and the bottom end of the third spring is propped against a limiting plate arranged on the surface of the positioning rod;
the connecting groove is the circular groove, the sealed end of connecting box is provided with the flange that stretches into the connecting groove, the flange inner wall encircles and has arranged the cavity guide bar, there is the stopper through second spring elastic connection in the guide bar, the connecting groove lateral wall is provided with the spacing groove, a lateral wall of spacing groove along the circular groove direction is the inclined plane structure, and another lateral wall is the right angle structure, the stopper with the spacing groove matches.
2. The oral implant screwdriver holder according to claim 1, wherein a compression spring is disposed in the mounting box, the bottom end of the compression spring being abutted against the inner wall of the mounting box, and the top end being abutted against the bottom surface of the clamping plate.
3. The oral implant screwdriver holder according to claim 1, wherein the connecting assembly comprises a rubber rod fixedly connected with the holding part, a groove is formed in the surface of the rubber rod, a sliding rod is sleeved on the surface of the rubber rod, a sliding block is arranged on the inner wall of the sliding rod, the sliding block is matched with the groove, a bearing is fixed at one end of the sliding rod, a threaded sleeve is fixedly arranged on the outer wall of the bearing, the threaded sleeve is U-shaped, and the inner wall of the threaded sleeve is in threaded connection with the fixing frame.
4. The oral implant screwdriver holder according to claim 1, wherein the holding portion is of a hollow structure, a pushing plate is connected in the holding portion through a guide rod, a rubber block is fixedly arranged on the opposite side of the connecting side of the pushing plate and the guide rod, the rubber block penetrates through and extends out of the surface of the holding portion, a first spring is sleeved on the surface of the guide rod, and two ends of the first spring are respectively abutted against the pushing plate and the inner wall of the holding portion.
5. The oral implant screwdriver holder according to claim 1, wherein the inner wall of the hollow structure of the rectangular fixing column is provided with a limiting plate, and the free end of the rectangular sliding rod is provided with a limiting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088235.7A CN113786252B (en) | 2021-09-16 | 2021-09-16 | Oral cavity is planted screwdriver holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088235.7A CN113786252B (en) | 2021-09-16 | 2021-09-16 | Oral cavity is planted screwdriver holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113786252A CN113786252A (en) | 2021-12-14 |
| CN113786252B true CN113786252B (en) | 2023-08-18 |
Family
ID=78878728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111088235.7A Active CN113786252B (en) | 2021-09-16 | 2021-09-16 | Oral cavity is planted screwdriver holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113786252B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114795539A (en) * | 2022-03-31 | 2022-07-29 | 山西医科大学口腔医院 | Oral implanting screwdriver holding device |
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| CN2430252Y (en) * | 2000-06-14 | 2001-05-16 | 廖上源 | Rotary positioning device for screwdriver handle |
| US6901826B2 (en) * | 2003-09-30 | 2005-06-07 | Chin-Tan Huang | Screwdriver |
| IT1400805B1 (en) * | 2010-07-02 | 2013-07-02 | Vigolo | ORTHODONTIC ANCHOR SCREW AND PROCEDURE FOR ITS REALIZATION |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008044014A (en) * | 2006-08-11 | 2008-02-28 | Korea Atom Energ Res Inst | Laser welding apparatus for I-125 seed titanium tube and welding method thereby |
| JP2011255487A (en) * | 2010-06-10 | 2011-12-22 | Akira Nakamura | Adapter for assisting screwdriver rotation, and mounting auxiliary tool used for the same |
| CN105150152A (en) * | 2015-09-26 | 2015-12-16 | 国网青海省电力公司 | Telescopic screwdriver |
| CN213053246U (en) * | 2020-08-07 | 2021-04-27 | 江苏瑞宏光电科技有限公司 | Handheld laser welding device suitable for narrow seam welding |
| CN111870362A (en) * | 2020-09-09 | 2020-11-03 | 赵君雄 | Operation positioner for posterior tooth implantation prepared hole operation and method thereof |
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| Publication number | Publication date |
|---|---|
| CN113786252A (en) | 2021-12-14 |
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