CN107224381A - A kind of novel dental checks seat - Google Patents
A kind of novel dental checks seat Download PDFInfo
- Publication number
- CN107224381A CN107224381A CN201710336713.9A CN201710336713A CN107224381A CN 107224381 A CN107224381 A CN 107224381A CN 201710336713 A CN201710336713 A CN 201710336713A CN 107224381 A CN107224381 A CN 107224381A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- rotating shaft
- seat
- handle
- threaded rod
- 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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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/02—Chairs with means to adjust position of patient; Controls therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Seat is checked the invention discloses a kind of novel dental, including base, the upper surface of the base is fixedly connected with support frame, the top of support frame as described above is fixedly connected with seat support, the side of the seat support is hinged with the chair back by first rotating shaft, the back side of the chair back is fixedly connected with the first U-shaped deck, the inwall of the first U-shaped deck is plugged with the second rotating shaft, the surface of second rotating shaft is fixedly connected with connecting rod, the upper surface of the base is fixedly connected with bearing, and the surface of the bearing is connected with bearing.Invention achieves control motor operations by controlling switch, motor drives threaded rod to rotate, so that thread bush is moved on threaded rod, when thread bush is moved on threaded rod, connecting rod, the 3rd rotating shaft, the second rotating shaft, the chair back and first rotating shaft coordinate, so that the chair back rises or fallen, so as to reach the problem of being easy to adjusting back angle of inclination.
Description
Technical field
The present invention relates to technical field of medical instruments, specially a kind of novel dental checks seat.
Background technology
Dental examination seat is that medical science section carries out used a kind of general apparatus during the detection of oral cavity to patient, checks seat
Chair is that patient can be sitting in or lie on the seat, so that doctor can be at an appropriate angle to examining in patient oral cavity
Survey.
Dental examination seat in the market typically collects regulation, illumination and places function and the one such as article so that doctor
It is raw that the facility of maximum can be provided when being diagnosed for patient, but seat adjustable range in the market is smaller, regulation is more
It is cumbersome, and be typically also by fixed for the bracket for placing article, it is difficult to it is mobile, so that occurring in use all
It is more inconvenient.
The content of the invention
(1) technical problem solved
In view of the shortcomings of the prior art, seat is checked the invention provides a kind of novel dental, solves the tooth of in the market
Section's detection seat regulation is cumbersome, and rack is the problem of be difficult to move.
(2) technical scheme
To achieve the above object, the present invention provides following technical scheme：A kind of novel dental checks seat, including base,
The upper surface of the base is fixedly connected with support frame, and the top of support frame as described above is fixedly connected with seat support, the side of the seat support
The chair back is hinged with by first rotating shaft, the back side of the chair back is fixedly connected with the first U-shaped deck, the first U-shaped deck
Inwall is plugged with the second rotating shaft, and the surface of second rotating shaft is fixedly connected with connecting rod, and the upper surface of the base is fixedly connected
There is bearing, the surface of the bearing is connected with bearing, and the inwall of the bearing is fixedly connected with threaded rod, the table of the threaded rod
Face is threaded with thread bush, and the surface of the thread bush is fixedly connected with the second U-shaped deck, the second U-shaped deck it is interior
Wall is plugged with the 3rd rotating shaft, and the surface of the 3rd rotating shaft is fixedly connected with one end of connecting rod, and the upper surface of the base is fixed
Motor is connected with, the output shaft of the motor is fixedly connected with one end of threaded rod, the both sides of the seat support upper surface are fixed
Handle is connected with, the surface of the handle is fixedly connected with controlling switch, and the controlling switch is electrically connected with motor.
The back side of the chair back is fixedly connected with gooseneck, and one end of the gooseneck is fixedly connected with lamp holder.
The upper surface of the base, which is fixedly connected with slide rail, the slide rail, is fixedly connected with sliding block, the sliding block it is upper
Surface is fixedly connected with vertical rod, and the surface of the vertical rod is fixedly connected with installing plate, and the both sides of the installation plate surface are fixed
Side plate is connected with, the surface of the side plate offers through hole, and the surface of the side plate is further opened with groove, the groove and through hole
Be connected, be plugged with fix bar in the groove, the surface of the fix bar is fixedly connected with tray rack, the tray rack it is upper
Surface is connected with medical tray.
It is preferred that, the length of the gooseneck is 60-80 centimetres.
It is preferred that, the terrain clearance of the seat support upper surface is 40-50 centimetres.
It is preferred that, the quantity of the through hole is two, the spacing of two through holes is 5-8 centimetres, and the through hole is shaped as
The strip of vertical direction.
It is preferred that, the groove is shaped as L-shaped, and the groove is that spacing is equidistantly positioned tables in side plate with 5 centimetres
Face.
It is preferred that, the two ends of the fix bar have been fixedly connected with handle, and the width of the handle is more than the width of through hole.
(3) beneficial effect
Seat is checked the invention provides a kind of novel dental.Possesses following beneficial effect：
(1), the present invention by set base, support frame, seat support, first rotating shaft, the chair back, the first U-shaped deck, second turn
Axle, connecting rod, bearing, bearing, threaded rod, thread bush, the second U-shaped deck, the 3rd rotating shaft, motor, handle and controlling switch, reach
Pass through controlling switch and control motor operations, motor drives threaded rod to rotate, so that thread bush is moved on threaded rod
Dynamic, when thread bush is moved on threaded rod, connecting rod, the 3rd rotating shaft, the second rotating shaft, the chair back and first rotating shaft coordinate so that chair
The back of the body rises or fallen, so as to reach the problem of being easy to adjusting back angle of inclination.
(2), the present invention has been reached by promoting vertical rod so that sliding block is in slide rail by setting slide rail, sliding block and vertical rod
It is mobile, so as to adjust the orientation of rack.
(3), the present invention is reached by setting installing plate, side plate, through hole, groove, tray rack, medical tray and handle
By holding handle, handle is above carried, fix bar is departed from out of groove, fix bar is moved up and down in through hole, adjust to
Fix bar clamping is entered in nearest groove after suitable height, so as to reach the effect that tray rack is highly conveniently adjusted
Really.
(4), the present invention has reached and patient oral cavity has been illuminated by lamp holder, made trouble by setting gooseneck and lamp holder
The visual field is preferable in person oral cavity, and by setting gooseneck so that lamp holder can arbitrarily adjust angles and positions.
(5), the present invention is by setting handle and controlling switch so that when patient is sitting in or lain on chair, Ke Yitong
Startup controlling switch is crossed, so that seat regulation is very convenient.
Brief description of the drawings
Fig. 1 is the structural representation of front view of the present invention；
Fig. 2 is the structural representation of installing plate lateral plan of the present invention.
In figure：1 base, 2 support frames, 3 seat supports, 4 first rotating shafts, 5 chair back, 6 first U-shaped decks, 7 second rotating shafts, 8 connect
Bar, 9 bearings, 10 bearings, 11 threaded rods, 12 thread bush, 13 second U-shaped decks, 14 the 3rd rotating shafts, 15 motors, 16 handles, 17 controls
Make switch, 18 goosenecks, 19 lamp holders, 20 slide rails, 21 sliding blocks, 22 vertical rods, 23 installing plates, 24 side plates, 25 through holes, 26 grooves, 27
Fix bar, 28 tray racks, 29 medical trays, 30 handles.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1-2, the present invention provides a kind of technical scheme：A kind of novel dental checks seat, including base (1),
The upper surface of the base (1) is fixedly connected with support frame (2), and the top of support frame as described above (2) is fixedly connected with seat support (3), institute
The terrain clearance for stating seat support (3) upper surface is 40-50 centimetres, and the side of the seat support (3) is hinged with chair by first rotating shaft (4)
Carry on the back (5), the back side of the chair back (5) is fixedly connected with the first U-shaped deck (6), the inwall grafting of the first U-shaped deck (6)
There is the second rotating shaft (7), the surface of second rotating shaft (7) is fixedly connected with connecting rod (8), and the upper surface of the base (1) is fixed
Bearing (9) is connected with, the surface of the bearing (9) is connected with bearing (10), and the inwall of the bearing (10) is fixedly connected with spiral shell
Rasp bar (11), the thread surface of the threaded rod (11) is connected with thread bush (12), and the surface of the thread bush (12), which is fixed, to be connected
The second U-shaped deck (13) is connected to, the inwall of the second U-shaped deck (13) is plugged with the 3rd rotating shaft (14), the 3rd rotating shaft
(14) surface is fixedly connected with the one end of connecting rod (8), and the upper surface of the base (1) is fixedly connected with motor (15), described
The output shaft of motor (15) is fixedly connected with one end of threaded rod (11), and the both sides of seat support (3) upper surface are fixedly connected with
There is handle (16), the surface of the handle (16) is fixedly connected with controlling switch (17), the controlling switch (17) and motor
(15) electrically connect.
The back side of the chair back (5) is fixedly connected with gooseneck (18), and the length of the gooseneck (18) is 60-80 lis
Rice, one end of the gooseneck (18) is fixedly connected with lamp holder (19).
The upper surface of the base (1) is fixedly connected with slide rail (20), the slide rail (20) and is fixedly connected with sliding block
(21), the upper surface of the sliding block (21) is fixedly connected with vertical rod (22), and the surface of the vertical rod (22) is fixedly connected with installation
Plate (23), the both sides on installing plate (23) surface have been fixedly connected with side plate (24), and the surface of the side plate (24) is offered
Through hole (25), the quantity of the through hole (25) is two, and the spacing of two through holes (25) is 5-8 centimetres, the through hole (25)
The strip of vertical direction is shaped as, the surface of the side plate (24) is further opened with groove (26), the shape of the groove (26)
For L-shaped, the groove (26) is that spacing is equidistantly positioned on the surface of side plate (24) with 5 centimetres, the groove (26) and through hole
(25) it is connected, is plugged with fix bar (27) in the groove (26), the two ends of the fix bar (27) have been fixedly connected with hand
Handle (30), the width of the handle (30) is more than the width of through hole (25), and the surface of the fix bar (27) is fixedly connected with support
Plate rail (28), the upper surface of the tray rack (28) is connected with medical tray (29).
It can to sum up obtain, (1), the present invention are by setting base (1), support frame (2), seat support (3), first rotating shaft (4), the chair back
(5), the first U-shaped deck (6), the second rotating shaft (7), connecting rod (8), bearing (9), bearing (10), threaded rod (11), thread bush
(12), the second U-shaped deck (13), the 3rd rotating shaft (14), motor (15), handle (16) and controlling switch (17), have reached and have passed through
Controlling switch (17) control motor (15) work, motor (15) drives threaded rod (11) to rotate, so that thread bush (12) exists
Threaded rod is moved on (11), when thread bush (12) is moved on threaded rod (11), connecting rod (8), the 3rd rotating shaft (14),
Two rotating shafts (7), the chair back (5) and first rotating shaft (4) coordinate so that the chair back (3) rises or fallen, and are easy to adjust chair so as to reach
The problem of carrying on the back (3) angle of inclination.
(2), the present invention has been reached by promoting vertical rod (22) by setting slide rail (20), sliding block (21) and vertical rod (22),
So that sliding block (21) is moved in slide rail (20), so as to adjust the orientation of rack.
(3), the present invention is by setting installing plate (23), side plate (24), through hole (25), groove (26), fix bar (27), support
Plate rail (28), medical tray (29) and handle (30), have reached by holding handle (30), handle (30) are above carried, makes fixation
Bar (27) departs from out of groove (26), and fix bar (27) is moved up and down in through hole (25), and adjusting to suitable height will
Fix bar (27) clamping enters in nearest groove (26), so as to reach the effect that tray rack (28) is highly conveniently adjusted.
(4), the present invention has reached and patient oral cavity has been entered by lamp holder (19) by setting gooseneck (18) and lamp holder (19)
Row illumination, makes in patient oral cavity the visual field preferably, and by setting gooseneck (18) so that lamp holder (19) can any adjustment angle
Degree and position.
(5), the present invention is by setting handle (16) and controlling switch (17) so that patient is sitting in or lain on chair
When, can be by starting controlling switch (17), so that seat regulation is very convenient.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of novel dental checks seat, including base (1), it is characterised in that：The upper surface of the base (1) is fixedly connected
There is support frame (2), the top of support frame as described above (2) is fixedly connected with seat support (3), and the side of the seat support (3) passes through first rotating shaft
(4) chair back (5) is hinged with, the back side of the chair back (5) is fixedly connected with the first U-shaped deck (6), the first U-shaped deck (6)
Inwall be plugged with the second rotating shaft (7), the surface of second rotating shaft (7) is fixedly connected with connecting rod (8), the base (1)
Upper surface is fixedly connected with bearing (9), and the surface of the bearing (9) is connected with bearing (10), and the inwall of the bearing (10) is consolidated
Surely threaded rod (11) is connected with, the thread surface of the threaded rod (11) is connected with thread bush (12), the thread bush (12)
Surface is fixedly connected with the second U-shaped deck (13), and the inwall of the second U-shaped deck (13) is plugged with the 3rd rotating shaft (14), institute
The surface for stating the 3rd rotating shaft (14) is fixedly connected with one end of connecting rod (8), and the upper surface of the base (1) is fixedly connected with motor
(15), the output shaft of the motor (15) is fixedly connected with one end of threaded rod (11), and the both sides of seat support (3) upper surface are equal
Handle (16) is fixedly connected with, the surface of the handle (16) is fixedly connected with controlling switch (17), the controlling switch (17)
Electrically connected with motor (15)；
The back side of the chair back (5) is fixedly connected with gooseneck (18), and one end of the gooseneck (18) is fixedly connected with lamp holder
(19)；
The upper surface of the base (1) is fixedly connected with slide rail (20), the slide rail (20) and is fixedly connected with sliding block (21), institute
The upper surface for stating sliding block (21) is fixedly connected with vertical rod (22), and the surface of the vertical rod (22) is fixedly connected with installing plate (23),
The both sides on installing plate (23) surface have been fixedly connected with side plate (24), and the surface of the side plate (24) offers through hole
(25), the surface of the side plate (24) is further opened with groove (26), and the groove (26) is connected with through hole (25), the groove
(26) fix bar (27) is plugged with, the surface of the fix bar (27) is fixedly connected with tray rack (28), the tray rack
(28) upper surface is connected with medical tray (29).
2. a kind of novel dental according to claim 1 checks seat, it is characterised in that：The length of the gooseneck (18)
For 60-80 centimetres.
3. a kind of novel dental according to claim 1 checks seat, it is characterised in that：Seat support (3) upper surface
Terrain clearance is 40-50 centimetres.
4. a kind of novel dental according to claim 1 checks seat, it is characterised in that：The quantity of the through hole (25) is
Two, the spacing of two through holes (25) is 5-8 centimetres, the strip for being shaped as vertical direction of the through hole (25).
5. a kind of novel dental according to claim 1 checks seat, it is characterised in that：Groove (26) are shaped as
L-shaped, the groove (26) is that spacing is equidistantly positioned on the surface of side plate (24) with 5 centimetres.
6. a kind of novel dental according to claim 1 checks seat, it is characterised in that：The two ends of the fix bar (27)
Handle (30) is fixedly connected with, the width of the handle (30) is more than the width of through hole (25).
7. a kind of novel dental checks the preparation method of seat, it is characterised in that：By setting base (1), support frame (2), chair
Seat (3), first rotating shaft (4), the chair back (5), the first U-shaped deck (6), the second rotating shaft (7), connecting rod (8), bearing (9), bearing
(10), threaded rod (11), thread bush (12), the second U-shaped deck (13), the 3rd rotating shaft (14), motor (15), handle (16) and control
System switch (17), has reached and has controlled motor (15) to work by controlling switch (17), motor (15) drives threaded rod (11) to rotate,
So that thread bush (12) is moved on threaded rod (11), when thread bush (12) is moved on threaded rod (11), even
Bar (8), the 3rd rotating shaft (14), the second rotating shaft (7), the chair back (5) and first rotating shaft (4) coordinate so that the chair back (3) rises or dropped
Under, so as to reach the problem of being easy to adjusting back (3) angle of inclination；By setting slide rail (20), sliding block (21) and vertical rod
(22), reached by promoting vertical rod (22) so that sliding block (21) is moved in slide rail (20), so as to adjust the side of rack
Position；By setting installing plate (23), side plate (24), through hole (25), groove (26), fix bar (27), tray rack (28), medical support
Disk (29) and handle (30), have reached by holding handle (30), handle (30) have above been carried, and make fix bar (27) from groove (26)
It is interior to depart from, fix bar (27) is moved up and down in through hole (25), adjusts to suitable height and enters fix bar (27) clamping
In nearest groove (26), so as to reach the effect that tray rack (28) is highly conveniently adjusted；By setting gooseneck
(18) and lamp holder (19), reached and patient oral cavity has been illuminated by lamp holder (19), made in patient oral cavity the visual field preferably, and
By setting gooseneck (18) so that lamp holder (19) can arbitrarily adjust angles and positions；By setting handle (16) and control
Switch (17) so that when patient is sitting in or lain on chair, can be by starting controlling switch (17), so that seat is adjusted
Section is very convenient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710336713.9A CN107224381B (en) | 2017-05-13 | 2017-05-13 | A kind of novel dental inspection seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710336713.9A CN107224381B (en) | 2017-05-13 | 2017-05-13 | A kind of novel dental inspection seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107224381A true CN107224381A (en) | 2017-10-03 |
| CN107224381B CN107224381B (en) | 2018-11-16 |
Family
ID=59934356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710336713.9A Active CN107224381B (en) | 2017-05-13 | 2017-05-13 | A kind of novel dental inspection seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107224381B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279536A (en) * | 2019-07-02 | 2019-09-27 | 金华职业技术学院 | It is a kind of to stand up the overturning bed of function with auxiliary |
| CN112665876A (en) * | 2020-12-29 | 2021-04-16 | 唐照所 | Agricultural equipment cab seat test bed convenient to automatically regulated |
| CN112896276A (en) * | 2021-01-29 | 2021-06-04 | 汕头大学 | Trolley for walking upstairs and downstairs |
| CN113350113A (en) * | 2020-11-27 | 2021-09-07 | 厦门爱玛康科技有限公司 | Massage chair structure and control method thereof |
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| GB191207380A (en) * | 1910-04-09 | 1912-08-08 | Ernst Troesch | Device for Supporting the Lower Extremities of Invalids when Lying Down. |
| US20030183236A1 (en) * | 2001-08-17 | 2003-10-02 | Kurt Klemm | Anterior support device |
| CN2704345Y (en) * | 2004-04-30 | 2005-06-15 | 卢佳宁 | Combined multifunctional hospital beds |
| CN203915368U (en) * | 2014-05-09 | 2014-11-05 | 麦凯申精密制造（深圳）有限公司 | A kind of dental multipurpose therapy unit |
| CN204468503U (en) * | 2015-03-12 | 2015-07-15 | 张忠国 | Urology Surgery nursing bed |
| CN205144983U (en) * | 2015-11-19 | 2016-04-13 | 安徽养和医疗器械设备有限公司 | Nursing tray lays device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191207380A (en) * | 1910-04-09 | 1912-08-08 | Ernst Troesch | Device for Supporting the Lower Extremities of Invalids when Lying Down. |
| US20030183236A1 (en) * | 2001-08-17 | 2003-10-02 | Kurt Klemm | Anterior support device |
| CN2704345Y (en) * | 2004-04-30 | 2005-06-15 | 卢佳宁 | Combined multifunctional hospital beds |
| CN203915368U (en) * | 2014-05-09 | 2014-11-05 | 麦凯申精密制造（深圳）有限公司 | A kind of dental multipurpose therapy unit |
| CN204468503U (en) * | 2015-03-12 | 2015-07-15 | 张忠国 | Urology Surgery nursing bed |
| CN205144983U (en) * | 2015-11-19 | 2016-04-13 | 安徽养和医疗器械设备有限公司 | Nursing tray lays device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279536A (en) * | 2019-07-02 | 2019-09-27 | 金华职业技术学院 | It is a kind of to stand up the overturning bed of function with auxiliary |
| CN113350113A (en) * | 2020-11-27 | 2021-09-07 | 厦门爱玛康科技有限公司 | Massage chair structure and control method thereof |
| CN112665876A (en) * | 2020-12-29 | 2021-04-16 | 唐照所 | Agricultural equipment cab seat test bed convenient to automatically regulated |
| CN112896276A (en) * | 2021-01-29 | 2021-06-04 | 汕头大学 | Trolley for walking upstairs and downstairs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107224381B (en) | 2018-11-16 |
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Effective date of registration: 20190717 Address after: 528200 No. 9 Hengguizhong Road, Luocun Lianhe and Industrial Zone, Shishan Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Roson Medical Instrument Co., Ltd. Address before: 315194 Kexin Building B-211-47, 655 Xueshi Road, Shounan Street, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Ningbo Zhengwei Zhi Ying Mdt InfoTech Ltd |