CN107744408A - One kind extraction tractor and extraction retractor system - Google Patents
One kind extraction tractor and extraction retractor system Download PDFInfo
- Publication number
- CN107744408A CN107744408A CN201711129278.9A CN201711129278A CN107744408A CN 107744408 A CN107744408 A CN 107744408A CN 201711129278 A CN201711129278 A CN 201711129278A CN 107744408 A CN107744408 A CN 107744408A
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- Prior art keywords
- nut
- extraction
- screw rod
- screw
- force
- 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.)
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Links
- 238000000605 extraction Methods 0.000 title claims abstract description 72
- 230000014759 maintenance of location Effects 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000003319 supportive effect Effects 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 15
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 210000003781 tooth socket Anatomy 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 6
- 208000013201 Stress fracture Diseases 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 208000004188 Tooth Wear Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000003456 pulmonary alveoli Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding 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
- A61C3/00—Dental tools or instruments
- A61C3/14—Dentists' forceps or the like for extracting teeth
Abstract
A kind of extraction tractor provided in an embodiment of the present invention and extraction retractor system, the extraction tractor includes retaining screw, exert a force screw rod, retention means, screw in nut and screw out nut, the retaining screw is connected with the force screw rod, the force screw rod is provided with transmission external screw thread, the inner ring for screwing in nut is equipped with the internal thread matched with the transmission external screw thread with the inner ring of the back-out nut, the screw-in nut is set on the force screw rod with the back-out nut and is detachably connected with the force screw rod, the retention means contact connection with the force screw rod, for being played a supportive role to the back-out nut.The extraction tractor its can reduce extraction caused by tooth socket absorption, mitigate patient pain, so as to alleviate alveolar bone due to follow-up the problem of repairing caused by more absorb.
Description
Technical field
The present invention relates to medical instruments field, in particular to one kind extraction tractor and extraction retractor system.
Background technology
Existing Extraction pattern is mainly to rock principle by tooth lever principle quickly, chock principle and dental forceps to realize
Extraction, but this several ways all has expansion destruction to tooth socket, and micro fractures occur in the tooth socket expanded mostly, this
Fracture will cause alveolar bone more to absorb slightly, and absorption of alveolar bone will excessively directly affect the repairing and treating after having tooth pulled out.
The content of the invention
It is an object of the invention to provide one kind extraction tractor and extraction retractor system, it can reduce extraction and make
Into tooth socket absorption, mitigate patient pain, alleviate alveolar bone due to follow-up the problem of repairing caused by more absorb.
What embodiments of the invention were realized in：
In a first aspect, the embodiment of the present invention provides a kind of extraction tractor, the extraction tractor includes：Retention means, consolidate
Position screw, force screw rod, screw in nut and screw out nut, the retaining screw is connected with the force screw rod, the force
Screw rod be provided with transmission external screw thread, it is described screw in nut inner ring with it is described back-out nut inner ring be equipped with outside the transmission
The internal thread of screw thread matching, the screw-in nut are set on the force screw rod and the force screw rod with the back-out nut
It is detachably connected, the retention means contact connection with the force screw rod, for being played a supportive role to the back-out nut.
In preferred embodiments of the present invention, the screw-in nut is hexagonal (hexagon)nut with the back-out nut, the rotation
It is blind hole nut to enter nut, and the back-out nut is through nut.
In preferred embodiments of the present invention, the screw-in nut is identical with the internal-and external diameter of the back-out nut.
In preferred embodiments of the present invention, the retention means in the form of sheets, offer through hole, the size of the through hole in piece
Match with the outside dimension of the force screw rod.
In preferred embodiments of the present invention, the retention means are annulus.
In preferred embodiments of the present invention, breach is opened up in the retention means, the breach is easy to the force screw rod
Be put into.
In preferred embodiments of the present invention, the side of the retention means is provided with metal level, and opposite side is provided with soft lining.
In preferred embodiments of the present invention, the retaining screw is integrally formed or is assembled into one with the force screw rod
Body.
Second aspect, the present invention provide a kind of extraction retractor system, and the extraction retractor system includes above-mentioned implementation
Any described extraction tractor and nut runner in example, the nut runner and the back-out nut and the screw-in spiral shell
Cap size matches.
The beneficial effect of the embodiment of the present invention is：The embodiments of the invention provide one kind extraction tractor and extraction traction
Device system, the extraction tractor include retention means, retaining screw, force screw rod, screw-in nut and screw out nut, the maintenance
Screw is connected with the force screw rod, and the screw rod is provided with transmission external screw thread, the inner ring for screwing in nut and the back-out
The inner ring of nut is equipped with the internal thread matched with the external screw thread, and the screw-in nut is set in described with the back-out nut
Detachably assembled with the screw rod on force screw rod, the retention means contact connection with the force screw rod, for the rotation
Go out nut to play a supportive role.Tooth can be pulled out, avoided based on the transmission principle of force screw rod by doctor by way of traction
Lever principle, chock principle, clamping used in existing extraction technology rock the micro- bone for the alveolar bone that principle may be brought
Folding, so as to avoid the absorption of alveolar bone after extraction to greatest extent, good basis is created for the reparation of later stage denture.
Other features and advantages of the present invention will illustrate in subsequent specification, also, partly become from specification
It is clear that or understood by implementing the embodiment of the present invention.The purpose of the present invention and other advantages can be by being write
Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of structural representation for extraction tractor that a kind of embodiment of first embodiment of the invention provides；
Fig. 2 is the structural representation of the retention means for the extraction tractor that a kind of embodiment of first embodiment of the invention provides
Figure；
Fig. 3 is that a kind of extraction tractor of first embodiment of the invention screws in the schematic diagram of tooth；
Fig. 4 is the schematic diagram that a kind of extraction tractor that first embodiment of the invention provides screws in tooth；
Fig. 5 is the schematic diagram that a kind of extraction tractor that first embodiment of the invention provides screws out tooth；
Fig. 6 is a kind of structural representation for extraction retractor system that second embodiment of the invention provides.
Icon：100- extraction tractors；110- retaining screws；120- force screw rods；130- screws in nut；140-
Screw out nut；150- retention means；200- extraction retractor systems；210- nut runners.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve to indicate or implying relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent the structure
Must be fully horizontal, but can be slightly tilted.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electric welding connection；Can be joined directly together, can also be by between intermediary
Connect connected, can be the connection of two element internals.For the ordinary skill in the art, can be understood with concrete condition
The concrete meaning of above-mentioned term in the present invention.
First embodiment
Fig. 1 is refer to, the present embodiment provides a kind of extraction tractor 100, and it includes retaining screw 110, force screw rod
120th, screw in nut 130, screw out nut 140 and retention means 150.
Wherein, the retaining screw 110 is provided with self-taped type external screw thread, and tip is presented in one end of the retaining screw 110
Shape, the retaining screw 110 are connected away from described tip-shape one end with one end of the force screw rod 120.
As a kind of embodiment, the retaining screw 110 can with it is described force screw rod 120 make when integrally into
Type, or assembling are integral.As another embodiment, the retaining screw 110 can also with it is described force screw rod 120 can
Dismantling connection.
The force screw rod 120 is provided with driving type external screw thread, and further, the size for exerting a force screw rod 120 can be with
More than the size of the retaining screw 110.
The external diameter of the external diameter for screwing in nut 130 and the back-out nut 140 is equipped with and the transmission external screw thread
The internal thread matched somebody with somebody, so that the screw-in nut 130 and the nut 140 that screws out can be by being driven the phase of external screw thread and internal thread
Mutually matching, so as to be set on the force screw rod 120.Certainly, the screw-in nut 130 also may be used with the back-out nut 140
With being mutually matched by transmission external screw thread and the internal thread, detachable assembling is realized with the screw rod 120 that exerts a force.
Further, the screw-in nut is blind hole nut, and the back-out nut is through nut.
Wherein, the profile for screwing in nut 130 and the back-out nut 140 can be hexangle type rule nut, and
The internal diameter for screwing in nut 130 and the back-out nut 140 and external diameter are identical.
The extraction tractor 100 also includes retention means 150.The retention means 150 and force screw rod 120 company of contact
Connect, for being played a supportive role to the back-out nut 140.
Wherein, the retention means 150 can offer through hole in piece in the form of sheets (regular sheet or irregular sheet),
The size of the through hole and the size of the force screw rod 120 match so that the retention means 150 can be arranged by through hole
On the force screw rod 120, support is played a part of to the back-out nut 140, serves as relatively-stationary operating platform.
When the retention means 150 play fixation, the retention means 150 contact connection with the back-out nut 140,
And it is placed on the lower section of the back-out nut 140.
Further, the side of the retention means 150 is provided with metal level, and opposite side is provided with soft lining.When using described solid
During the part 150 of position, metal level can be contacted with the back-out nut 140, the soft lining and the teeth contact of patient play
Alleviate tooth wear, mitigate the effect of alveolus damage.
Further, Fig. 2 is refer to, the retention means 150 can be annular shape.
For the ease of doctor in extraction, retention means 150 can be placed on tooth with screwing out nut 140 more conveniently
Between, as a kind of embodiment, breach can also be opened up in the retention means 150, the breach opens up the maintenance
The through hole of part 150, connected with the through hole, and the size of the breach is more than the size of the force screw rod.Doctor can be with
Force screw rod 120 is placed into the through hole of the retention means 150 by the breach, meanwhile, doctor also can in extraction
The position relationship of extraction tractor and tooth is observed by breach.
Before doctor needs to have tooth pulled out to patient, some preparations can be beforehand with, such as：Nut will first be screwed in
130th, nut 140 and retention means 150 are screwed out to separate with the force screw rod 120.
Fig. 3 is refer to, when doctor needs to have tooth pulled out to patient, can will first screw in nut 130 and force screw rod 120
Screw thread matching is carried out, and the entirety for screwing in nut 130, force screw rod 120 and retaining screw 110 form is put into patient's mouth
Chamber so that the sophisticated position of retaining screw 110 is placed on patient and treats site of extractions, then turns screw-in nut according to a direction
130 so that screw between nut 130 and force screw rod 120 and done relative motion because screw thread matches.In the first rank of relative motion
Section, screw in nut 130 and move downward so that the blind hole end for screwing in nut 130 contacts with force screw rod 120, now into phase
To the second stage of motion.In second stage, because the blind hole end for screwing in nut 130 contacts with screw rod 120 so that screw-in spiral shell
Cap 130 can not continue to move downward relative to screw rod 120, but still turned due to now screwing in nut 130, therefore, this
When screw in nut 130 and can drive force screw rod 120 and with the retaining screw 110 that is connected of force screw rod 120 towards treating extraction portion
Position moves downward so that retaining screw 110 enters Its pulp to be had tooth pulled out.
Refer to Fig. 4, when retaining screw 110 be screwed into wait have tooth pulled out tooth after, it is necessary to remove screw in nut 130, and by maintenance
Part 150 and back-out nut 140 are screwed into force screw rod 120 according to same direction successively.
Doctor, which can continue to turn according to same direction, screws out nut 140, using the screw rod 120 that exerts a force with screwing out nut 140
Relative motion on the same line is had tooth pulled out to draw.Concrete operations refer to Fig. 5.Doctor first equidirectional can turn back-out spiral shell
Cap 140 so that done relative motion between back-out nut 140 and force screw rod 120 because screw thread matches and (it is relative to screw out nut 140
Moved downward in force screw rod 120, force screw rod 120 moves upwards relative to nut 140 is screwed out).When back-out nut 140 and admittedly
Position part 150 pushes against, and now due to the supporting role of retention means 150 so that screwing out nut 140 can not continue to move downward, but
Still turned due to screwing out nut 140, therefore, the screw rod 120 that now exerts a force can drive retaining screw 110 relative to back-out spiral shell
Cap 140 moves upwards, so that force screw rod 120 drives retaining screw 110 that tooth is pulled out into tooth socket.
Using traction technique, the lever principle used in existing extraction technology, chock principle, clamping can be avoided to rock
The micro fractures for the alveolar bone that principle may be brought, it is later stage denture so as to avoid the absorption of alveolar bone after extraction to greatest extent
Reparation create good basis.
Certainly, extraction tractor 100 is not merely confined to above-mentioned implementation process.Further, implement as one kind
Mode, before doctor needs to have tooth pulled out to patient, the preparation done can be：Turn and screw out nut 140 so that screw out
Nut 140 is moved to the middle part of integrally formed retaining screw 110 and the screw rod 120 that exerts a force by screw thread matching, then will
Screw in nut 130 and the force assembly connection of screw rod 120 so that screwing in nut 130 can keep connecting with force screw rod 120, but
Now force screw rod 120, which does not arrive at, screws at the end of the blind hole of nut 130., can when doctor needs to have tooth pulled out to patient
Treated with being first placed on retention means 150 at extraction, then will carry and screw out nut 140, screw in nut 130, retaining screw 110
And the whole entirety of force screw rod 120 is put into patient oral cavity so that the sophisticated position of retaining screw 110 is placed on patient and waits to pull out
Tooth position, then turn and screw in nut 130 so that screw between nut 130 and force screw rod 120 and done relatively because screw thread matches
Motion.In the first stage of relative motion, screw in nut 130 and move downward so that screw in the blind hole end and force of nut 130
Screw rod 120 contacts, now into the second stage of relative motion.In second stage, due to screw in the blind hole end of nut 130 with
Screw rod 120 contacts so that and screwing in nut 130 can not continue to move downward relative to screw rod 120, but due to now screwing in nut
130 are still being turned, and therefore, force screw rod 120 can be driven and consolidate with what force screw rod 120 was connected by now screwing in nut 130
Position screw 110 is towards treating that site of extractions moves downward so that retaining screw 110 enters Its pulp to be had tooth pulled out.When doctor is carried out
During extraction, it can first pass through and turn screw-in nut 130 so that screw in nut 130 and depart from force screw rod 120, then start Tongfang
Nut 140 is screwed out to turning so that screws out (the back-out that done relative motion between nut 140 and force screw rod 120 because screw thread matches
Nut 140 moves downward relative to force screw rod 120, and force screw rod 120 moves upwards relative to nut 140 is screwed out).Relative
The first stage of motion, screw out nut 140 and move downward close to retention means 150.In the second stage of relative motion, due to screwing out
Nut 140 pushes against with retention means 150, and now due to the supporting role of retention means 150 so that screwing out nut 140 can not continue
Move downward, but still turned due to screwing out nut, therefore, the screw rod 120 that now exerts a force can drive retaining screw 110 relative
Moved upwards in screwing out nut 140, so that force screw rod 120 drives retaining screw 110 that tooth is pulled out into tooth socket.
First embodiment of the invention provides a kind of extraction tractor 100, including retention means 150, retaining screw 110, applies
Power screw rod 120, screw in nut 130 and screw out nut 140.The retaining screw 110 is connected with the force screw rod 120, institute
State screw rod 120 and be provided with driving type external screw thread, the inner ring for screwing in nut 130 and the inner ring of the back-out nut 140 are all provided with
There is the internal thread matched with the external screw thread, the screw-in nut 130 is set in the force screw rod with the back-out nut 140
On 120, can with it is described force screw rod 120 be detachably connected, the retention means with it is described exert a force screw rod contact connection, for pair
The back-out nut plays a supportive role.Doctor can be pulled out tooth by way of traction by the interaction of above-mentioned part
Remove, avoid the lever principle used in existing extraction technology, chock principle, clamp and rock the alveolar bone that principle may be brought
Micro fractures, so as to avoid the absorption of alveolar bone after extraction to greatest extent, good base is created for the reparation of later stage denture
Plinth.
Second embodiment
Fig. 6 is refer to, the present embodiment provides a kind of extraction retractor system 200, and it includes any reality in first embodiment
Apply the extraction tractor 100 and nut runner 210 described in mode, the nut runner 210 and the back-out nut 140 and
The screw-in nut 130 size matching.
Wherein, the nut runner 210 screws out nut 140 and the screw-in nut 130 for described turn.
The nut runner 210 is die nut, can suitably increase the arm of force of spanner so that doctor is turning back-out spiral shell
It is more laborsaving when cap 140 is with screwing in nut 130.
Second embodiment of the invention provides a kind of extraction retractor system 200, including retaining screw 110, force screw rod
120th, nut 130, retention means 150 are screwed in, screw out nut 140 and nut runner 210.The retaining screw 110 is applied with described
Power screw rod 120 connects, and the force screw rod 120 is provided with external screw thread, the inner ring for screwing in nut 130 and the back-out nut
140 inner ring is equipped with the internal thread matched with the external screw thread, and the screw-in nut 130 is arranged with the back-out nut 140
On the force screw rod 120, it can be detachably connected with the force screw rod 120, the retention means and the force screw rod
Contact connection, for being played a supportive role to the back-out nut.Nut runner 210, which is used to turn, to be screwed in nut 130 and screws out
Nut 140.Tooth can be pulled out by the interaction of above-mentioned part, avoid existing pull out by doctor by way of traction
Lever principle, chock principle, clamping used in tooth technology rock the micro fractures for the alveolar bone that principle may be brought, so as to most
Limits avoid the absorption of alveolar bone after extraction, and good basis is created for the reparation of later stage denture.
In summary, the present invention provides a kind of extraction tractor 100 and extraction retractor system 200, extraction traction
Device system 200 includes retaining screw 110, force screw rod 120, screws in nut 130, retention means 150, screws out nut 140 and spiral shell
Cap spanner 210.The retaining screw 110 is connected with the force screw rod 120, and the force screw rod 120 is provided with external screw thread, institute
The inner ring for stating screw-in nut 130 is equipped with the internal thread matched with the external screw thread with the inner ring of the back-out nut 140, described
Nut 130 is screwed in be set on the force screw rod 120 with the back-out nut 140, can be removable with the force screw rod 120
Connection is unloaded, the retention means contact connection with the force screw rod, for being played a supportive role to the back-out nut.Nut runner
210 are used to turn screw-in nut 130 and screw out nut 140.Doctor can pass through traction by the interaction of above-mentioned part
Mode tooth is pulled out, avoid the lever principle used in existing extraction technology, chock principle, clamping rock principle can
The micro fractures for the alveolar bone that can be brought, it is the reparation of later stage denture so as to avoid the absorption of alveolar bone after extraction to greatest extent
Create good basis.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. one kind extraction tractor, it is characterised in that the extraction tractor includes：Retaining screw, force screw rod, retention means,
Screw in nut and screw out nut, the retaining screw is connected with the force screw rod, and it is outer that the force screw rod is provided with transmission
Screw thread, the inner ring for screwing in nut are equipped with the interior spiral shell matched with the transmission external screw thread with the inner ring of the back-out nut
Line, the screw-in nut are set on the force screw rod with the back-out nut and are detachably connected with the force screw rod, institute
State retention means and contact connection with the force screw rod, for being played a supportive role to the back-out nut.
2. extraction tractor according to claim 1, it is characterised in that the screw-in nut is blind hole nut, the rotation
It is through nut to go out nut.
3. extraction tractor according to claim 2, it is characterised in that the nut that screws in screws out the interior of nut with described
External diameter is identical.
4. extraction tractor according to claim 1, it is characterised in that the retention means offer logical in the form of sheets, in piece
Hole, the size of the through hole and the outside dimension of the force screw rod match.
5. extraction tractor according to claim 4, it is characterised in that the retention means are annulus.
6. extraction tractor according to claim 5, it is characterised in that breach, the breach are opened up in the retention means
It is easy to being put into for the force screw rod.
7. extraction tractor according to claim 1, it is characterised in that the side of the retention means is provided with metal level, separately
Side is provided with soft lining.
8. extraction tractor according to claim 1, it is characterised in that the retaining screw and the force screw rod one
Shaping.
9. extraction tractor according to claim 1, it is characterised in that the retaining screw and the force screw rod assembling
Integrally.
10. one kind extraction retractor system, it is characterised in that the extraction retractor system includes any in claim 1-9
Described extraction tractor and nut runner, the nut runner and the back-out nut and the back-out nut size
Match somebody with somebody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129278.9A CN107744408A (en) | 2017-11-15 | 2017-11-15 | One kind extraction tractor and extraction retractor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129278.9A CN107744408A (en) | 2017-11-15 | 2017-11-15 | One kind extraction tractor and extraction retractor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107744408A true CN107744408A (en) | 2018-03-02 |
Family
ID=61251191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711129278.9A Pending CN107744408A (en) | 2017-11-15 | 2017-11-15 | One kind extraction tractor and extraction retractor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107744408A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0318709A1 (en) * | 1987-11-28 | 1989-06-07 | Christoph Dr. Paetzold | Instrument for extracting the roots of fractured teeth |
| DE10136762A1 (en) * | 2001-04-12 | 2002-10-24 | Hans-Peter Hornig | Extraction device for teeth and/or roots has lever unit with abutments, extraction part, and support elements, to extract tooth in longitudinal direction |
| KR101472854B1 (en) * | 2014-09-05 | 2014-12-16 | 김성윤 | Tooth extraction assembly |
| CN204446149U (en) * | 2015-03-06 | 2015-07-08 | 谢旺祥 | A kind of Wicresoft pulls out the instrument of root of the tooth |
| CN208591144U (en) * | 2017-11-15 | 2019-03-12 | 重庆迈恩吉医疗科技有限公司 | A kind of extraction tractor and retractor system of having tooth pulled out |
-
2017
- 2017-11-15 CN CN201711129278.9A patent/CN107744408A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0318709A1 (en) * | 1987-11-28 | 1989-06-07 | Christoph Dr. Paetzold | Instrument for extracting the roots of fractured teeth |
| DE10136762A1 (en) * | 2001-04-12 | 2002-10-24 | Hans-Peter Hornig | Extraction device for teeth and/or roots has lever unit with abutments, extraction part, and support elements, to extract tooth in longitudinal direction |
| KR101472854B1 (en) * | 2014-09-05 | 2014-12-16 | 김성윤 | Tooth extraction assembly |
| CN204446149U (en) * | 2015-03-06 | 2015-07-08 | 谢旺祥 | A kind of Wicresoft pulls out the instrument of root of the tooth |
| CN208591144U (en) * | 2017-11-15 | 2019-03-12 | 重庆迈恩吉医疗科技有限公司 | A kind of extraction tractor and retractor system of having tooth pulled out |
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