CN211433992U - Spine three-dimensional linkage health care instrument - Google Patents
Spine three-dimensional linkage health care instrument Download PDFInfo
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- CN211433992U CN211433992U CN201922153487.8U CN201922153487U CN211433992U CN 211433992 U CN211433992 U CN 211433992U CN 201922153487 U CN201922153487 U CN 201922153487U CN 211433992 U CN211433992 U CN 211433992U
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- 230000036541 health Effects 0.000 title claims abstract description 69
- 230000033001 locomotion Effects 0.000 claims abstract description 22
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
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- 238000011282 treatment Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
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- 238000012148 non-surgical treatment Methods 0.000 description 2
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- 210000001032 spinal nerve Anatomy 0.000 description 2
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- 230000001360 synchronised effect Effects 0.000 description 2
- 208000021945 Tendon injury Diseases 0.000 description 1
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- 210000000683 abdominal cavity Anatomy 0.000 description 1
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- 210000000845 cartilage Anatomy 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 210000003205 muscle Anatomy 0.000 description 1
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- 210000000518 sarcolemma Anatomy 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
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Abstract
The utility model discloses a three-dimensional linkage health care instrument for spine, belonging to the technical field of health care medical instruments. The health care instrument comprises a bed body bracket, a horizontal moving plate and a first driving device thereof, an angled lifting plate and a second driving device and a third driving device thereof, a transverse shear plate and a fourth driving device thereof; the first driving device enables the horizontal moving plate to do reciprocating motion along the longitudinal sliding guide rail, the second driving device enables the angled lifting plate to do up-and-down reciprocating angle conversion along the transverse shaft, the third driving device enables the angled lifting plate to do reciprocating rotation along the longitudinal shaft, and the fourth driving device enables the transverse shearing plate to do reciprocating rotation along the shearing plate rotating shaft; the third driving device and the fourth driving device are driven by the same motor to synchronously coordinate, and the motor is fixedly connected with the angled lifting plate; the actions can realize three-dimensional linkage or linkage of two groups of actions under the control of the controller. The utility model discloses three-dimensional linkage health care appearance of backbone can accomplish the three-dimensional synchronization action that manual manipulation is difficult to realize accurately safely.
Description
Technical Field
The utility model relates to the technical field of health care medical instruments, in particular to a health care instrument-spine three-dimensional linkage health care instrument for spine health care and sub-health conditioning.
Background
The spine is the medial axis spine of the human body, the upper skull and the lower pelvis, the middle rib is attached, the back wall of the chest and the abdominal cavity is used for protecting and bearing the internal organs, the material transportation main trunk of the human body, namely the aorta and the great vein, and the main trunk of the human body information transmission, namely the spinal cord and the spinal nerves. The health of the spine is the basis for human health.
The spine can move in three-dimensional directions within the physiological range of motion to adapt to the life, study and labor of people, and when the spine exceeds the range of motion or the bearing capacity, the spine tendon injury and the "tension" appear (including the protrusion of intervertebral disc, but the intervertebral disc has no pain nerve, and the pain can not be caused by the simple protrusion of intervertebral disc). When the intervertebral joint capsule, ligament, fascia, sarcolemma, muscle, tendon and cartilage are injured, local pain and dysfunction occur, and when a certain spinal nerve is injured, the dysfunction of tissues and organs in the nerve management area is caused. At the moment, if the 'difference' can be corrected in time, the aim of rehabilitation can be achieved by self-repairing the injury. If no correction is obtained, the mild one becomes sub-healthy and the severe one becomes disease over time.
The treatment of such diseases includes surgical and non-surgical treatments, and there are various methods for non-surgical treatment, including traction treatment in which the spine is affected by a mechanical method and three-dimensional orthotherapy of the present applicant. Such prior art focuses on treatment, has a single fixed action, and is not suitable for spine health care and conditioning of sub-health people.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the existing spine disease treatment method is single in action fixation and is not suitable for conditioning of spine health care and sub-health crowds, the utility model provides a spine three-dimensional linkage health care instrument, which comprises a health care instrument bed body support, a horizontal moving plate arranged on the bed body support, a first mechanical device for driving the horizontal moving plate to horizontally move along the longitudinal axis of the horizontal moving plate, an angulation lifting plate connected on the bed body support, a second mechanical device for driving the angulation lifting plate to angulate up and down, a third mechanical device for driving the angulation lifting plate to rotate along the longitudinal axis of the angulation lifting plate, a transverse shearing plate arranged on the angulation lifting plate and a fourth mechanical device for driving the transverse shearing plate to rotate; the first mechanical device enables the horizontal moving plate to do reciprocating motion along a longitudinal sliding guide rail, the second mechanical device enables the angled lifting plate to do up-and-down reciprocating angle conversion along a transverse shaft, the third mechanical device enables the angled lifting plate to do reciprocating rotation along a longitudinal shaft, and the fourth mechanical device enables the transverse shear plate to do reciprocating rotation along a shear plate rotating shaft; the third mechanical device and the fourth mechanical device are driven by the same motor to synchronously coordinate, and the motor is fixedly connected with the angled lifting plate; the actions can realize three-dimensional linkage or linkage of two groups of actions under the control of the controller.
Longitudinal sliding guide rails are arranged on two sides of the bottom surface of the horizontal moving plate, and the health care instrument bed body support is matched with the horizontal moving plate through the longitudinal sliding guide rails; the first mechanical device adopts a motor to control and drive the horizontal moving plate to reciprocate horizontally along the longitudinal axis of the horizontal moving plate.
The health care instrument bed body support is hinged with an arched support arm supporting the angled lifting plate through the transverse shaft, and the second mechanical device is an electric push rod controlled by a motor.
The longitudinal axis is disposed between the angled lifter plate and the arcuate arm.
The transverse shear plate is rotatably disposed at an end of the angled lifter plate proximate the horizontal travel plate.
The bed body bracket of the health care instrument is provided with a bracket lifting device, and the bracket lifting device consists of a lifting power machine and a lifting guide rail; the lifting power machine is arranged at the bottom of the health care instrument bed body support, and the lifting guide rails are arranged at two sides of the health care instrument bed body support.
A rotating shaft capable of transversely rotating is arranged below the horizontal moving plate; the rotating shaft is driven by a motor, so that the horizontal moving plate can rotate along the rotating shaft.
The center of the health care instrument bed body support is longitudinally and fixedly provided with a rack, and the rack is mutually matched with a straight gear of a motor of the first mechanical device.
The third mechanical device comprises a straight cylindrical gear and an arc-shaped gear groove, the arc-shaped gear groove is fixedly arranged on the arc-shaped support arm, and the straight cylindrical gear is meshed with the arc-shaped gear groove to do reciprocating motion; the fourth mechanical device comprises a driving bevel gear and a driven bevel gear, and the driving bevel gear is meshed with the driven bevel gear; the center of the transverse shear plate is provided with the shear plate rotating shaft, and the shear plate rotating shaft is connected with the driven bevel gear; the driving bevel gear and the cylindrical straight gear are driven by the same motor to synchronously coordinate.
The utility model provides a three-dimensional linkage health care appearance of backbone can adopt the various mechanical action of digital servo motor control, can accomplish the three-dimensional synchronization action that artifical gimmick is difficult to realize accurately safely, improves the metabolism by the health care person intervertebral disc, delays its disintegration ageing. The utility model provides a three-dimensional linkage health care appearance of backbone still can provide the big data of health care, scientific research, management and the popularization in the future of being convenient for.
Drawings
FIG. 1 is a schematic view of the spine three-dimensional linkage health care apparatus according to the embodiment of the present invention;
FIG. 2 is a schematic structural view of the three-dimensional linkage health care instrument for spinal column according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of the embodiment of the present invention, in which the same servo motor drives the transverse shear plate and the angled lifter plate to synchronously coordinate with each other.
Detailed Description
The technical solution of the present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, the embodiment of the present invention provides a spine three-dimensional linkage health care apparatus, which comprises a health care apparatus bed frame 1, a horizontal moving plate 2 disposed on the bed frame 1, a first mechanical device for driving the horizontal moving plate 2 to move horizontally along its longitudinal axis, an angulation lifting plate 3 connected to the bed frame 1, a second mechanical device for driving the angulation lifting plate 3 to angulate up and down, a third mechanical device for driving the angulation lifting plate 3 to rotate along its longitudinal axis, a transverse shear plate 4 disposed on the angulation lifting plate 3, and a fourth mechanical device for driving the transverse shear plate 4 to rotate; the first mechanical device enables the horizontal moving plate 2 to do reciprocating motion along the longitudinal sliding guide rail 101, the second mechanical device enables the angled lifting plate 3 to do up-and-down reciprocating angle conversion along the transverse shaft 303, the third mechanical device enables the angled lifting plate 3 to do reciprocating rotation along the longitudinal shaft 304, and the fourth mechanical device enables the transverse shear plate 4 to do reciprocating rotation along the shear plate rotating shaft 402; the third mechanical device and the fourth mechanical device are driven by the same motor 5 to synchronously coordinate; the actions can realize three-dimensional linkage or linkage of two groups of actions under the control of the controller.
Referring to fig. 1 and 2, the first mechanism of the present embodiment may use a motor to control and drive the horizontal moving plate 2 to reciprocate along the longitudinal axis thereof, for example, the first mechanism may use a servo motor 201 to drive the horizontal moving plate 2 to reciprocate along the longitudinal axis thereof. In the present embodiment, a rack (not shown) is longitudinally and fixedly disposed at the center of the bed frame 1, and the rack is engaged with a spur gear of a servo motor 201 disposed on the bed frame 1 and driving the horizontal moving plate 2 to reciprocate horizontally along the longitudinal axis of the horizontal moving plate, so that the horizontal moving plate 2 can realize corresponding reciprocating motion along with the forward and reverse rotation of the servo motor 201. In this embodiment, longitudinal sliding guide rails 101 are disposed on two sides of the bottom surface of the horizontal moving plate 2, and the bed body support 1 of the health care instrument is fit with the horizontal moving plate 2 through the longitudinal sliding guide rails 101.
Referring to fig. 1-3, the angled lifter plate 3 of the present embodiment is supported by the arcuate arm 300 with the longitudinal axis 304 disposed between the angled lifter plate 3 and the arcuate arm 300; the bow-shaped support arm 300 is hinged with the bed body support 1 of the health care instrument through a transverse shaft 303. The second mechanical device in this embodiment is an electric push rod 301 controlled by a servo motor, and the servo motor controls the electric push rod 301 to extend and retract so as to realize the vertical angulation of the angulation lifting plate 3. The third mechanism for driving the reciprocating rotational movement of angled lifter plate 3 along longitudinal axis 304 of the present embodiment includes a spur gear 302 'and an arcuate gear slot 302, with spur gear 302' engaging arcuate gear slot 302 for reciprocating movement. The fourth mechanism for driving the rotation of the transverse shear plate 4 in this embodiment comprises a driving bevel gear 401 'and a driven bevel gear 401, wherein the driving bevel gear 401' and the driven bevel gear are engaged with each other. The transverse shear plate 4 of this embodiment is rotatably disposed at an end of the angled lifter plate 3 adjacent to the horizontal travel plate 2, and a shear plate shaft 402 is provided at the center of the transverse shear plate 4, the shear plate shaft 402 being coupled to the driven bevel gear 401. In this embodiment, the spur gear 302 'for driving the angled lifter plate 3 to reciprocate along the longitudinal axis 304 and the bevel pinion 401' for driving the transverse shear plate 4 to rotate are driven by the same servo motor 5 to synchronously cooperate with each other.
Referring to fig. 1 to 3, the operation principle of the synchronous coordination action of the servo motor 5 driving the transverse shear plate 4 and the angled lifter plate 3 in this embodiment is as follows: the servo motor 5 is a driving mechanism, the servo motor 5 is fixedly arranged on the angled lifting plate 3, the driven bevel gear 401 is fixedly arranged on the transverse shear plate 4 through a shear plate rotating shaft 402, the arc-shaped gear groove 302 is fixedly arranged on the arc-shaped support arm 300, the reciprocating rotation of the servo motor 5 drives the driving bevel gear 401 'connected to the rotating shaft to rotate in a reciprocating manner, the driving bevel gear 401' drives the driven bevel gear 401 to rotate in a reciprocating manner, and the reciprocating rotation of the driven bevel gear 401 drives the transverse shear plate 4 to rotate in a reciprocating manner; meanwhile, the reciprocating rotation of the servo motor 5 drives the straight cylindrical gear 302 'to perform meshing reciprocating motion along the arc-shaped gear groove 302, the reciprocating motion of the straight cylindrical gear 302' drives the servo motor 5 to perform reciprocating motion, and the reciprocating motion of the servo motor 5 drives the angled lifting plate 3 to perform reciprocating motion along the longitudinal axis 304. In use, the spur gear 302 'and the drive bevel gear 401' are co-located on a single shaft driven by the servo motor 5, so that the rotational speed, amplitude and direction of the angled lifter plate 3 and the transverse shear plate 4 are coordinated.
Referring to fig. 1 and 2, in order to facilitate the health care apparatus for three-dimensional linkage of upper and lower spines of a health care person, a support lifting device is further provided on the bed body support 1 of the health care apparatus of this embodiment, and the support lifting device is composed of a lifting power machine 601 and a lifting guide rail 602. The support lifting device consists of a lifting power machine 601 and a lifting guide rail 602; the lifting power machine 601 is arranged at the bottom of the health care instrument bed body support 1, and the lifting guide rails 602 are arranged at two sides of the health care instrument bed body support 1. The lifting power machine 601 may be an electric lifting machine. In order to solve the problem of the front and back staggered joint of the spine, a rotating shaft 202 capable of transversely rotating is installed below the horizontal moving plate 2 of the spine three-dimensional linkage health care instrument, and the rotating shaft 202 is driven by a servo motor and can enable the horizontal moving plate 2 to rotate along the rotating shaft 202; the rotation of the rotating shaft 202 can make the two ends of the horizontal moving plate 2 realize up-and-down reciprocating motion, and can correct the front-and-back dislocation between the spine vertebrae of the health care person positioned on the spine three-dimensional linkage health care instrument.
In practical application, the bed body support of the spine three-dimensional linkage health care instrument of the embodiment can be made of hard materials, such as aluminum alloy, carbon fiber, steel and the like; the bottom layer of the horizontal moving plate is made of hard materials such as aluminum alloy, carbon fiber, steel and the like, and leather materials are covered on the horizontal moving plate; the bottom layer of the angled lifter plate of this embodiment is made of a hard material, such as aluminum alloy, carbon fiber, steel, etc., and the top of the angled lifter plate is covered with a leather-like material. In a specific application, the servo motors driving the mechanical devices can be controlled in a wired or wireless manner, so that wired or wireless control over the mechanical devices is realized.
Referring to fig. 1 to 3, during spine health care, a health care person lies on his back or prostrate on the spine three-dimensional linkage health care instrument of the embodiment, the chest and back are fixed on the horizontal moving plate, and the pelvis is fixed on the transverse shear plate; setting health care parameters and action time according to the height, weight, sex, age and individual requirements of the health care person, and starting a switch of the health care instrument to automatically complete the spine health care process. For example: people without obvious symptoms can only start the servo motor 5 to drive the angled lifting plate 3 to do reciprocating rotation along the longitudinal axis 304 and drive the transverse shear plate 4 to do reciprocating rotation; it is possible to add a servo motor 201 to drive the horizontal moving plate 2 to reciprocate horizontally along the longitudinal axis. For the persons with symptoms or sub-health, the servo motor 5, the servo motor 201 and the electric push rod 301 controlled by the servo motor can be started simultaneously, and the speed, the amplitude and the direction of each group of actions are adjusted appropriately according to the needs.
Compared with the prior art, the embodiment of the utility model has the following advantage:
1. the utility model discloses three-dimensional linkage health care appearance of backbone can adopt the various mechanical action of digital servo motor control, not only accurate safety, but also can provide the big data of health care, scientific research, management and the popularization in the future of being convenient for.
2. The embodiment of the utility model provides a horizontal moving plate of three-dimensional linkage health care appearance of backbone is reciprocating motion along longitudinal sliding guide rail and can play "pump effect" to the interior matter of intervertebral disc, improves the metabolism by the health care person's intervertebral disc (the intervertebral disc does not have the blood supply, and easy metamorphism is ageing), delays its metamorphism ageing.
3. The mechanical device for driving the angled lifting plate to do reciprocating rotation motion along the longitudinal axis and the mechanical device for driving the transverse shearing plate to rotate adopt the same motor to drive synchronous coordination action, so that the problem that the motions such as the motion speed, the direction, the stroke and the like of the angled lifting plate and the transverse shearing plate are not easy to coordinate due to power dispersion is solved, a power mechanism is saved, and the device has remarkable creativity.
4. The utility model discloses three-dimensional linkage health care appearance of backbone can accomplish the three-dimensional synchronization action that manual manipulation is difficult to realize.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A spine three-dimensional linkage health care instrument is characterized by comprising a health care instrument bed support (1), a horizontal moving plate (2) arranged on the bed support (1), a first mechanical device for driving the horizontal moving plate (2) to horizontally move along a longitudinal axis of the horizontal moving plate, an angulation lifting plate (3) connected to the bed support (1), a second mechanical device for driving the angulation lifting plate (3) to angulate up and down, a third mechanical device for driving the angulation lifting plate (3) to rotationally move along the longitudinal axis of the angulation lifting plate, a transverse shearing plate (4) arranged on the angulation lifting plate (3), and a fourth mechanical device for driving the transverse shearing plate (4) to rotate; the first mechanical device enables the horizontal moving plate (2) to do reciprocating motion along a longitudinal sliding guide rail (101), the second mechanical device enables the angled lifting plate (3) to do up-and-down reciprocating angle conversion along a transverse shaft (303), the third mechanical device enables the angled lifting plate (3) to do reciprocating rotation motion along a longitudinal shaft (304), and the fourth mechanical device enables the transverse shearing plate (4) to do reciprocating rotation along a shearing plate rotating shaft (402); the third mechanical device and the fourth mechanical device are driven by the same motor (5) to synchronously coordinate, and the motor (5) is fixedly connected with the angled lifting plate (3); the actions can realize three-dimensional linkage or linkage of two groups of actions under the control of the controller.
2. The spine three-dimensional linkage health care instrument according to claim 1, characterized in that longitudinal sliding guide rails (101) are arranged on two sides of the bottom surface of the horizontal moving plate (2), and the health care instrument bed frame (1) is fit with the horizontal moving plate (2) through the longitudinal sliding guide rails (101); the first mechanical device adopts a motor to control and drive the horizontal moving plate (2) to reciprocate horizontally along the longitudinal axis of the horizontal moving plate.
3. The spinal three-dimensional linkage health care instrument according to claim 1, characterized in that the health care instrument bed frame (1) is hinged with the bow-shaped support arm (300) supporting the angled lifter plate (3) through the transverse shaft (303), and the second mechanical device is a motor-controlled electric push rod.
4. The spinal three-dimensional linked health care instrument according to claim 3, wherein said longitudinal axis (304) is disposed between said angled lifter plate (3) and said arcuate arm (300).
5. The spinal three-dimensional linked health care instrument according to claim 1, characterized in that said transverse shear plate (4) is rotatably mounted at an end of said angled lifter plate (3) near said horizontal moving plate (2).
6. The spinal column three-dimensional linkage health care instrument according to claim 1, characterized in that the health care instrument bed frame (1) is equipped with a frame lifting device, and the frame lifting device is composed of a lifting power machine (601) and a lifting guide rail (602); the lifting power machine (601) is arranged at the bottom of the health care instrument bed support (1), and the lifting guide rails (602) are arranged at two sides of the health care instrument bed support (1).
7. The three-dimensional linkage health care instrument for the spine according to claim 1, characterized in that a rotating shaft (202) capable of transversely rotating is installed below the horizontal moving plate (2); the rotating shaft (202) is driven by a motor, so that the horizontal moving plate (2) can rotate along the rotating shaft (202).
8. The spinal column three-dimensional linkage health care instrument according to claim 1, characterized in that a rack is longitudinally and fixedly arranged at the center of the health care instrument bed body support (1), and the rack is mutually matched with a spur gear of a motor of the first mechanical device.
9. The spinal column three-dimensional linkage health care instrument according to claim 3, characterized in that the third mechanical device comprises a straight cylindrical gear (302 ') and an arc-shaped gear groove (302), the arc-shaped gear groove (302) is fixedly arranged on the arc-shaped support arm (300), and the straight cylindrical gear (302') is engaged with the arc-shaped gear groove (302) for reciprocating motion; the fourth mechanical device comprises a driving bevel gear (401 ') and a driven bevel gear (401), and the driving bevel gear (401') and the driven bevel gear (401) are meshed with each other; the shear plate rotating shaft (402) is arranged at the center of the transverse shear plate (4), and the shear plate rotating shaft (402) is connected with the driven bevel gear (401); the driving bevel gear (401 ') and the straight cylindrical gear (302') are driven by the same motor (5) to synchronously coordinate.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153487.8U CN211433992U (en) | 2019-12-05 | 2019-12-05 | Spine three-dimensional linkage health care instrument |
| PCT/CN2020/133110 WO2021109995A1 (en) | 2019-12-05 | 2020-12-01 | Spine three-dimensional linkage health care instrument |
| EP20896441.1A EP4070775A1 (en) | 2019-12-05 | 2020-12-01 | Spine three-dimensional linkage health care instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153487.8U CN211433992U (en) | 2019-12-05 | 2019-12-05 | Spine three-dimensional linkage health care instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211433992U true CN211433992U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922153487.8U Withdrawn - After Issue CN211433992U (en) | 2019-12-05 | 2019-12-05 | Spine three-dimensional linkage health care instrument |
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| Country | Link |
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| CN (1) | CN211433992U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111035534A (en) * | 2019-12-05 | 2020-04-21 | 张益� | Spine three-dimensional linkage health care instrument |
| WO2021109995A1 (en) * | 2019-12-05 | 2021-06-10 | 张益� | Spine three-dimensional linkage health care instrument |
| CN111035534B (en) * | 2019-12-05 | 2024-07-16 | 张益� | Three-dimensional linkage health care instrument for spine |
-
2019
- 2019-12-05 CN CN201922153487.8U patent/CN211433992U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111035534A (en) * | 2019-12-05 | 2020-04-21 | 张益� | Spine three-dimensional linkage health care instrument |
| WO2021109995A1 (en) * | 2019-12-05 | 2021-06-10 | 张益� | Spine three-dimensional linkage health care instrument |
| CN111035534B (en) * | 2019-12-05 | 2024-07-16 | 张益� | Three-dimensional linkage health care instrument for spine |
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Effective date of registration: 20240307 Address after: Building 9, 2nd Floor, North Factory, No. 149 Weizikeng, Songjiazhuang Road, Fengtai District, Beijing, 100079, 2023 Patentee after: Beijing Sanwei Zhengji Pharmaceutical Research Co.,Ltd. Country or region after: China Address before: No. 101, Unit 1, No. 94 Yuhan Road, Shizhong District, Jinan City, Shandong Province, 250002 Patentee before: Zhang Yi Country or region before: China |
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