CN207520218U - Removable Occlusal pad - Google Patents
Removable Occlusal pad Download PDFInfo
- Publication number
- CN207520218U CN207520218U CN201720454334.5U CN201720454334U CN207520218U CN 207520218 U CN207520218 U CN 207520218U CN 201720454334 U CN201720454334 U CN 201720454334U CN 207520218 U CN207520218 U CN 207520218U
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- China
- Prior art keywords
- limit portion
- connector
- unit
- occlusal pad
- removable
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- Expired - Fee Related
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Abstract
The utility model is related to field of medical device, in particular to a kind of removable Occlusal pad, it is intended to solve prior art construction complexity, inconvenient problem with use.A kind of removable Occlusal pad, including left limit portion, right limit portion and the connector for being configured with elastic force；Connector is the bending part of arc；Left limit portion and right limit portion are symmetrically disposed in the both ends of connector；Left limit portion is made with connector of unlike material respectively, and right limit portion is made with connector of unlike material respectively；The elastic force that connector provides makes above-mentioned left limit portion and right limit portion be located remotely from each other each other.Such removable Occlusal pad is simple in structure, easily manufactured, and with higher medical value.
Description
Technical field
The utility model is related to field of medical device, in particular to a kind of removable Occlusal pad.
Background technology
In mouth cavity orthodontic goes to a doctor patient, labial teeth or indivedual teeth are counter is combined into common malocclusion, this deformity is usually
Lead to stomatognathic system dysfunction, severe patient even needs orthodontic and surgical treatment.Anti- conjunction is the most normal with iS-One Group III patient
See, this kind of patient is frequently accompanied by mandibular teeth compensatory tongue and inclines.And during correction, releasing anti-close usually needs to close using tooth
Pad, however current Occlusal pad at least have the shortcomings that it is complicated be unfavorable for manufacture process.
Utility model content
The purpose of this utility model is to provide a kind of removable Occlusal pads, can be readily achieved processing, and use
It is convenient.
What the embodiment of the utility model was realized in：
A kind of removable Occlusal pad, including left limit portion, right limit portion and the connector for being configured with elastic force；
Connector is the bending part of arc；Left limit portion and right limit portion are symmetrically disposed in the both ends of connector；Left limit portion and company
Junctor is made respectively of unlike material, and right limit portion is made with connector of unlike material respectively；The elastic force that connector provides
Left limit portion and right limit portion is made to be located remotely from each other each other.
The left limit portion and right limit portion of removable Occlusal pad support the tooth positioned at oral cavity both sides, such left limit respectively
Portion can just complete the contact to dental surface with right limit portion well.Left limit portion and right limit portion respectively with connector two
End connects and left limit portion and right limit portion are symmetrically arranged, and connector is bent into the folding with arc being adapted with oral cavity
It is curved.So when in use, removable Occlusal pad would not influence other positions of oral cavity, avoid connector secondary caused by oral cavity
Injury.Connector has elastic force so that left limit portion and right limit portion are located remotely from each other each other, in this way when patient wears simultaneously
During removable Occlusal pad, the elastic force provided from connector can be such that left limit portion is moved to the direction far from right limit portion well
It is dynamic, while right limit portion is made to be moved to the direction far from left limit portion, prevent tooth tongue from inclining (i.e. to the direction of tongue so as to reach
Tilt), be conducive to remove III class patient's tooth of iS-One it is compensatory, prepare for orthognatic surgery.Left limit portion is with connector respectively by not
Same material is made, and right limit portion is made with connector of unlike material respectively, and such set-up mode causes left limit portion and the right side
Limiting section is mainly used for limiting tooth to be corrected, to prevent tongue from inclining；And connector is then served only for connection left limit portion and right limit
Position, and elastic force is provided so that left limit portion and right limit are located remotely from each other each other, it can cause different function and purpose portion in this way
The enough specific materials of potential energy reach best using effect to realize best effect.To sum up, such removable Occlusal pad
Have the advantages that it is simple in structure, easy to make, and with high clinical value.
In a kind of embodiment of the utility model：
Above-mentioned left limit portion and right limit portion are made of macromolecule resin material.
In a kind of embodiment of the utility model：
Above-mentioned left limit portion includes the first left unit and the second left unit that are connected with each other, the first left unit and the second left list
There are angles between member；
Right limit portion includes the first right unit and the second right unit that are connected with each other, the first right unit and the second right unit it
Between there are angles；
The both ends of connector are connect respectively with the first left unit and the first right unit, the first left unit and the first right unit phase
To setting, and the second left unit is generally aligned in the same plane with the second right unit.
In a kind of embodiment of the utility model：
The both ends of above-mentioned connector are respectively embedded into the first left unit and the first right unit.
In a kind of embodiment of the utility model：
One end of above-mentioned connector is embedded in the medium position of the length direction of the first left unit；The other end insertion of connector
The medium position of the length direction of first right unit.
In a kind of embodiment of the utility model：
The junction of above-mentioned first left unit and the second left unit has the first rib；
The junction of first right unit and the second right unit has the second rib.
In a kind of embodiment of the utility model：
The both ends of above-mentioned connector are integrally formed respectively with left limit portion, right limit portion.
In a kind of embodiment of the utility model：
Above-mentioned connector is bent by metal.
In a kind of embodiment of the utility model：
Above-mentioned connector is made of stainless steel.
In a kind of embodiment of the utility model：
Above-mentioned connector is stainless steel wire.
The advantageous effect of the utility model embodiment is：
A kind of removable Occlusal pad, including left limit portion, right limit portion and the connector for being configured with elastic force.
In use, left limit portion and right limit portion support the tooth positioned at oral cavity both sides respectively, it is pre- that releasing occlusion lock becomes bracket bonding
Spacing efficiently can control tooth to move from the beginning, so as to aligning, release anti-tooth conjunction.Left limit portion and right limit
Bit position is not connect with the both ends of connector and left limit portion and right limit portion are symmetrically arranged, and connector is the bending of arc
Part, it is small to be not easy to appear, beauty be improved.Foreign body sensation is small, does not interfere with other positions of oral cavity, connector is avoided to make oral cavity
Into secondary injury, patient's comfortable wearing, convenient for cleaning.Connector has elastic force simultaneously, and it is big and general to solve tongue side undercut
The problem of logical Occlusal pad is difficult in place is plucked and is worn conveniently.Connector so that left limit portion and right limit portion are located remotely from each other each other, this
For sample when patient wears removable Occlusal pad, the elastic force provided from connector can make left limit portion to far from right limit well
The direction movement in position portion, while right limit portion is made to be moved to the direction far from left limit portion, prevent what tooth tongue from inclining so as to reach
Purpose.Left limit portion and right limit portion can complete the contact to dental surface well in this way, be not required to the snap ring of common Occlusal pad
And the retention systems such as embrasure hook, it is simple in structure, easy to make.Left limit portion is made with connector of unlike material respectively, right limit
Position portion is made with connector of unlike material respectively, and such set-up mode enables different function and purpose position with specific
Material to realize best effect, reach best using effect.Such removable Occlusal pad has simple in structure, making
Convenient effect.
Description of the drawings
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram at a visual angle of removable Occlusal pad in the utility model embodiment；
Fig. 2 is the structure diagram at another visual angle of Fig. 1；
Fig. 3 is the sectional view of Fig. 1；
Fig. 4 is the usage state diagram of removable Occlusal pad in the utility model embodiment.
Icon：The removable Occlusal pads of 10-；110- left limits portion；The first left units of 111-；The second left units of 112-；120-
Right limit portion；The first right units of 121-；The second right units of 122-；130- connectors；The first ribs of 141-；142- second strengthens
Portion；150- oral cavities；151- teeth；152- tongues.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of different.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if occur term " on ", "left", "right", " level ",
The orientation or position relationship of the instructions such as " interior ", " outer " are new based on orientation shown in the drawings or position relationship or the practicality
Type product using when the orientation usually put or position relationship, be for only for ease of description the utility model and simplify and describe, and
It is not instruction or implies signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not intended that the limitation to the utility model.In addition, term " first ", " second " etc. are only used for distinguishing description, and cannot manage
It solves to indicate or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, if there is art
Language " setting ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally connect
It connects；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can above-mentioned term be understood with concrete condition
Concrete meaning in the utility model.
Embodiment
The classification of Angle mistakes jaw is to be proposed by the founder EHAngle doctor of modern Orthodontics in 1899
Malocclusion classification, the classification of abbreviation iS-One.The wherein third class of Angle mistakes jaw classification, subclass (Class III,
Subdivision), i.e. III class of iS-One has higher incidence in asian population, and it is unilateral near to often appear as
Middle misfit, and his side is neutral conjunction relationship.With the symptom of third class misfit, may there are the pairing of labial teeth or anti-conjunction.
Epithesis treatment is generally adopted by for the therapeutic scheme of III class of iS-One, such therapy needs patient again
Lower jaw Occlusal pad is worn in oral cavity, the problem of interior is poured on to treat tongue.
Please refer to Fig. 1, Fig. 1 be the present embodiment provides a kind of structure diagram of removable Occlusal pad 10, can be with from Fig. 1
Find out that removable Occlusal pad 10 includes left limit portion 110, right limit portion 120 and connector 130 including it.
With continued reference to Fig. 1, it can further be seen from figure 1 that connector 130 for arc bending part (herein refer to be bent into
The shape that patient oral cavity is adapted).Left limit portion 110 and right limit portion 120 are symmetrically disposed in the both ends of connector 130.This
In it should be noted that connector 130 is configured with elastic force, connector 130 is for connecting left limit portion 110 and right limit
Position portion 120, while connector 130 also provides for that left limit portion 110 and right limit portion 120 is made to be located remotely from each other mutual elasticity
Power.Left limit portion 110 is used to support the tooth of patient oral cavity side, and right limit portion 120 is used to support patient oral cavity opposite side
Tooth.What needs to be explained here is that the absolute orientation of the not restricted removable Occlusal pad 10 of "left", "right", " left side " and " right side "
It is opposite, only characterizes the relative position relation of the two here.
Fig. 2 is the structure diagram at another visual angle of the removable Occlusal pad 10 of Fig. 1, and Fig. 2 has reacted left limit portion 110
With the details of more configuration aspects in right limit portion 120.
With reference to Fig. 2 in the present embodiment of the utility model, above-mentioned left limit portion 110 includes the first left unit 111 and the
Two left units 112, the first left 111 and second left unit 112 of unit are set in preset angle.Right limit portion 120 includes first
Right 121 and second right unit 122 of unit, the first right 121 and second right unit 122 of unit are set in preset angle.Connector
130 both ends are connect respectively with the first left 111 and first right unit 121 of unit, the first left 111 and first right unit 121 of unit
It is oppositely arranged, and the second left unit 112 is generally aligned in the same plane with the second right unit 122.Further, from figure 2 it can be seen that
First left 111 and second left 112 L-shaped arrangement of unit of unit, the first right 121 and second right unit 122 of unit also L-shaped cloth
It puts.Such set-up mode is in order to which left limit portion 110 and right limit portion 120 adapt to dental surface, when the bullet of connector 130
Property power enables left limit portion 110 and right limit portion 120 be located remotely from each other that at this point, left limit portion 110 and right limit portion 120 more
Well and teeth contact, it is that the elastic force of connector 130 is capable of the surface of fully left and right tooth again to prevent tongue from inclining.
Fig. 3 is the sectional view of the removable Occlusal pad 10 of Fig. 1, and Fig. 3 has reacted left limit portion 110, right limit portion 120 and connected
The details of 130 more configuration aspects of junctor.
With reference to, as can be seen that in the present embodiment of the utility model, the both ends of above-mentioned connector 130 are divided in Fig. 2 and Fig. 3
It Qian Ru not the first left 111 and first right unit 121 of unit.Connector 130 is embedded in the first left 111 and first right unit 121 of unit
The other positions such as surface, end without being provided in left limit portion 110 and right limit portion 120, such purpose be so that
The elastic force of connector 130 can be better transmitted to left limit portion 110 and right limit portion 120, so as to ensure that removable tooth closes
The effect of pad 10.
Further, in the present embodiment of the utility model, one end of above-mentioned connector 130 is embedded in the first left unit
The medium position of 111 length direction；The other end of connector 130 is embedded in the middle part of the length direction of the first right unit 121
Position.The middle part that connector 130 is located at the first left unit 111 so that left limit portion 110 is opposite with the connection of connector 130 steady
Gu and with certain flexibility ratio, and it is unlikely to connector 130 and has fully embedded into left limit portion 110 and right limit portion 120 so that connection
The elasticity of body 130 is cleared up too much inside left limit portion 110 and right limit portion 120.And such set-up mode can be saved more
Material saving has preferable economic benefit.
With continued reference to Fig. 3, in the present embodiment of the utility model, above-mentioned first left 111 and second left unit 112 of unit
Junction have the first rib 141；The junction of first right 121 and second right unit 122 of unit has the second rib
142.Because the edge of the junction meeting supports tooth of the first left 111 and second left unit 112 of unit, in removable Occlusal pad 10
In use, junction can bear the pressure of bigger, by having in the junction of the first left unit 111 and the second left unit 112
First rib 141 can effectively strengthen the intensity in left limit portion 110, so as to ensure the using effect of removable Occlusal pad 10；
Likewise, in removable Occlusal pad 10 in use, the junction of the first right 121 and second right unit 122 of unit can bear bigger
Pressure, can effectively be added by having the second rib 142 in the junction of the first right 121 and second right unit 122 of unit
The intensity in strong right limit portion 120, and ensure the using effect of removable Occlusal pad 10.
Further, in the present embodiment of the utility model, the both ends of above-mentioned connector 130 respectively with left limit portion
110th, right limit portion 120 is integrally formed.Integrally formed set-up mode cause removable Occlusal pad 10 have preferable intensity and
Toughness, integrally formed mode also allow for large batch of manufacture, compared to split type connection, have process short, pass through
The characteristics of high efficiency of helping.
Referring again to Fig. 3, it can also be seen that left limit portion 110 and connector 130 are respectively by unlike material system from Fig. 3
Into right limit portion 120 is made with connector 130 of unlike material respectively.It can also be seen that in the present embodiment, left limit portion
110 and right limit portion 120 be made of identical material.
Further, in the present embodiment of the utility model, above-mentioned left limit portion 110 and right limit portion 120 are by height
Molecule resin material is made.Macromolecule resin material is excellent ground biomaterial, has preferable bio-capacitivity, is not in
The reactions such as general allergy, repulsion, and macromolecule resin material can be manufactured by way of being molded, demoulding, it is easily manufactured and logical
Best shape with from individual patients to cooperation can be obtained by way of being molded, demoulding by crossing macromolecule resin material,
With better using effect.It should be noted that in the present embodiment, macromolecule resin material can be polyethylene acrylic acid
Any one in methyl esters, polyvinyl propionate, addition-type silicon rubber and polyether rubber, as long as corresponding function can be realized i.e.
It can.
In the present embodiment of the utility model, above-mentioned connector 130 is bent by metal.Metal has good reason
Change property, there is preferable bending, and easily obtain, also there is more use in field of medical equipment.
Further, in the present embodiment of the utility model, above-mentioned connector 130 is made of stainless steel.It needs to illustrate
, stainless steel here is acid resisting steel.Stainless steel (Stainless Steel) is the abbreviation of stainless acid resistant steel, resistance to air, steaming
The weak corrosive medium such as vapour, water or the steel grade with rustless property are known as stainless steel；And by the medium resistant to chemical etching (changes such as acid, alkali, salt
Learn etch) corrosion steel grade be known as acid resisting steel.Make their corrosion resistance different due to difference of the two in chemical composition, it is general
Generally resistant to chemical media does not corrode logical stainless steel, and acid resisting steel then generally has rustless property.Because the Tiny ecosystem of oral cavity complexity
Environment can just improve such situation well using acid-resistant stainless steel.
In order to obtain preferably effect, further, in the present embodiment of the utility model, above-mentioned connector 130 is
Stainless steel wire.Stainless steel wire has larger structural strength and good fracture toughness, and the stainless steel wire after drawing has preferable
Elasticity, correction in III class of iS-One, in correction, the elastic force of stainless steel wire can provide the elastic force of needs well.
Fig. 4 uses schematic diagram for removable Occlusal pad 10 provided in this embodiment.
When in use, left limit portion 110 and right limit portion 120 can be obtained and patient's tooth by way of being molded, demoulding
151 matched surface shape of tooth.Left limit portion 110 and right limit portion 120 are respectively supported at the tooth 151 of 150 both sides of oral cavity, together
When left limit portion 110 include the mode of the first left 111 and second left unit 112 of unit, right limit portion 120 includes the first right unit
121 and second the mode of right unit 122 left limit portion 110 and right limit portion 120 is preferably made to be contacted with tooth 151.Connector
130 there is the arc being adapted with oral cavity 150 to bend, and so when in use, removable Occlusal pad 10 would not influence oral cavity 150
Other positions avoid connector 130 to secondary injury caused by oral cavity 150.Connector 130 has elastic force so that left simultaneously
Limiting section 110 and right limit portion 120 are located remotely from each other each other, in this way when patient wears removable Occlusal pad 10, by connector 130
The elastic force of offer can be such that left limit portion 110 is moved to the direction far from right limit portion 120 well, while make right limit portion
120 move to the direction far from left limit portion 110, prevent from 151 tongue of tooth from inclining (to the direction of tongue 152 inclining so as to reach
Tiltedly), so be conducive to remove III class patient of iS-One tooth it is compensatory.Such removable Occlusal pad 10 has simple in structure, system
Make convenient effect, and with preferable economic benefit.
When not in use, removable Occlusal pad 10 is taken out from oral cavity 150.
It should be noted that：
In the other embodiment of the utility model, part of the left limit portion 110 far from right limit portion 120 has with presetting
The matched auxiliary section of tooth；Part of the right limit portion 120 far from left limit portion 110 has and the matched cooperation of default tooth
Portion, set-up mode can preferably be the teeth contact of removable Occlusal pad 10 and patient in this wise, so as to enhance therapeutic effect.
Connector 130 is only an example for stainless steel wire, in the other embodiment of the utility model, connector
130 can also be made of other materials, as long as connection has and makes left limit portion 110 and right limit portion 120 is located remotely from each other
Elastic force.
What needs to be explained here is that Occlusal pad is actuallyPad,It is technical term, but should in medical domain for a word
Word is not yet included into simplified Chinese character catalogue, can only be shown with separated " tooth " word and " conjunction " word.
To sum up, the embodiment of the utility model provides a kind of removable Occlusal pad 10, including left limit portion 110, right limit
Position portion 120 and the connector 130 for being configured with elastic force.In use, left limit portion 110 and right limit portion 120 are propped up respectively
Positioned at the tooth of oral cavity both sides, such left limit portion 110 and right limit portion 120 just can be well completed to dental surface for support
Contact.Left limit portion 110 and right limit portion 120 are connect respectively with the both ends of connector 130 and left limit portion 110 and right limit portion
120 are symmetrically arranged, and connector 130 is bent into the preset shape being adapted with oral cavity.Do not interfere with thus oral cavity other
Position avoids the secondary injury caused by oral cavity of connector 130.Connector 130 has elastic force so that left limit portion simultaneously
110 and right limit portion 120 be located remotely from each other each other, in this way when patient wear removable Occlusal pad 10 when, provided by connector 130
Elastic force can make well left limit portion 110 to far from right limit portion 120 direction move, while make right limit portion 120 to
Direction far from left limit portion 110 is moved, so as to achieve the purpose that prevent tooth tongue from inclining.Left limit portion 110 divides with connector 130
It is not made of unlike material, right limit portion 120 is made with connector 130 of unlike material respectively, and such set-up mode causes
Different function and purpose position can realize best effect with specific material, reach best using effect.It is such
Removable Occlusal pad 10 has effect simple in structure, easy to make.
It these are only the preferred embodiment of the utility model, be not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of removable Occlusal pad, it is characterised in that：
Including left limit portion, right limit portion and the connector for being configured with elastic force；
The connector is the bending part of arc；
The left limit portion and the right limit portion are symmetrically disposed in the both ends of the connector；
The left limit portion is made with the connector of unlike material respectively, the right limit portion and the connector respectively by
Unlike material is made；
The connector offer makes the left limit portion and the right limit portion be located remotely from each other mutual elastic force.
2. removable Occlusal pad according to claim 1, it is characterised in that：
The left limit portion and the right limit portion are made of macromolecule resin material.
3. removable Occlusal pad according to claim 1 or 2, it is characterised in that：
The left limit portion includes the first left unit and the second left unit that are connected with each other, the first left unit and described second
There are angles between left unit；
The right limit portion includes the first right unit and the second right unit that are connected with each other, the first right unit and described second
There are angles between right unit；
The both ends of the connector are connect respectively with the described first left unit and the first right unit, the first left unit and described
First right unit is oppositely arranged, and the second left unit is generally aligned in the same plane with the described second right unit.
4. removable Occlusal pad according to claim 3, it is characterised in that：
The both ends of the connector are respectively embedded into the described first left unit and the first right unit.
5. removable Occlusal pad according to claim 4, it is characterised in that：
One end of the connector is embedded in the medium position of the length direction of the described first left unit；The connector it is another
End is embedded in the medium position of the length direction of the described first right unit.
6. removable Occlusal pad according to claim 5, it is characterised in that：
The junction of the first left unit and the described second left unit has the first rib；
The junction of the first right unit and the described second right unit has the second rib.
7. the removable Occlusal pad according to any one in claim 4-5, it is characterised in that：
The both ends of the connector are integrally formed respectively with the left limit portion, the right limit portion.
8. removable Occlusal pad according to claim 1 or 2, it is characterised in that：
The connector is bent by metal.
9. removable Occlusal pad according to claim 8, it is characterised in that：
The connector is made of stainless steel.
10. removable Occlusal pad according to claim 9, it is characterised in that：
The connector is stainless steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454334.5U CN207520218U (en) | 2017-04-26 | 2017-04-26 | Removable Occlusal pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454334.5U CN207520218U (en) | 2017-04-26 | 2017-04-26 | Removable Occlusal pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207520218U true CN207520218U (en) | 2018-06-22 |
Family
ID=62575493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720454334.5U Expired - Fee Related CN207520218U (en) | 2017-04-26 | 2017-04-26 | Removable Occlusal pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207520218U (en) |
-
2017
- 2017-04-26 CN CN201720454334.5U patent/CN207520218U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20200426 |