CN107714403A - A kind of medical crutch for being easy to patient to adjust height - Google Patents
A kind of medical crutch for being easy to patient to adjust height Download PDFInfo
- Publication number
- CN107714403A CN107714403A CN201711117226.XA CN201711117226A CN107714403A CN 107714403 A CN107714403 A CN 107714403A CN 201711117226 A CN201711117226 A CN 201711117226A CN 107714403 A CN107714403 A CN 107714403A
- Authority
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- China
- Prior art keywords
- leg
- installation cavity
- side wall
- fixedly connected
- spring
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/02—Crutches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/02—Crutches
- A61H2003/0205—Crutches with no pivoting movement during use, e.g. tripods
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a kind of medical crutch for being easy to patient to adjust height, including leg set, the inside of the leg set, which is provided with one end, has the first installation cavity of opening, it is provided with first installation cavity and turns leg, the side wall for turning leg is fixedly connected with the first position limiting slide block, first position limiting slide block is slidably connected in the first installation cavity, the madial wall of the opening is provided with the ring limit block corresponding with the first position limiting slide block position, the inner bottom part of first installation cavity is fixedly connected with the first spring, the one end of first spring away from the first installation cavity inner bottom part, which is fixedly connected on, turns on leg, the side wall of the leg set is provided with position-limit mechanism, the lower end for turning leg is provided with the second installation cavity, push rod is slidably connected in second installation cavity.The present invention is easy to operate, can adapt to multiple types of floors road conditions, increases the stability of crutch itself, and patient can rely on the gravity of itself to adjust the height of crutch, time saving and energy saving.
Description
Technical field
The present invention relates to crutch technical field, more particularly to a kind of medical crutch for being easy to patient to adjust height.
Background technology
With the development of medical field, various medicine equipments are also continuously improving, in the hope of more easily using, and wherein
Common is exactly crutch.
Crutch is a kind of simple apparatus for aiding in walking, and typically one wooden or metal rod, it is a kind of important
Medical rehabilitation appurtenance, existing crutch is mostly simple in construction, can not adapt to various road conditions, and can not adjust height, nothing
Method adapts to the patient of different height.
The content of the invention
The invention aims to solve shortcoming present in prior art and problem, and the one kind proposed is easy to patient
Adjust the medical crutch of height.
To achieve these goals, present invention employs following technical scheme：
A kind of medical crutch for being easy to patient to adjust height, including leg set, the inside of the leg set has provided with one end opens
First installation cavity of mouth, interior be provided with of first installation cavity turn leg, and the side wall for turning leg is fixedly connected with the first position limiting slide block,
First position limiting slide block is slidably connected in the first installation cavity, and the madial wall of the opening is provided with and the first position limiting slide block
The corresponding ring limit block in position, the inner bottom part of first installation cavity are fixedly connected with the first spring, first spring
One end away from the first installation cavity inner bottom part, which is fixedly connected on, turns on leg, and the side wall of the leg set is provided with position-limit mechanism, described
The lower end for turning leg is provided with the second installation cavity, and push rod, the interior top of second installation cavity are slidably connected in second installation cavity
Portion is provided with second spring, and the one end of the second spring away from the second installation cavity inner top is fixedly connected on push rod, the top
The lower end of bar is rotatably connected to multiple supporting legs, and the side wall for turning leg is provided with to the individual stretching, extension mouth corresponding with leg location, institute
State stretching, extension mouth to connect with the second installation cavity, the side wall of the push rod is provided with pull bar, and the pull bar runs through the second installation cavity extremely
Turning outside leg, the side wall for turning leg is provided with the chute corresponding with pull bar position, and the pull bar is slidably connected in chute,
The side wall that the pull bar is located at the one end turned outside leg is provided with mounting blocks, runs through on the mounting blocks and is provided with trip bolt, institute
Trip bolt to be stated to be threaded on mounting blocks, the side wall for turning leg is provided with the positioning hole corresponding with trip bolt position,
The trip bolt is slidably connected with positioning hole, and the upper end of the leg set is provided with trestle, is provided between the leg set and trestle slow
Punch mechanism.
Preferably, position-limit mechanism includes installs case, and the installs case is fixedly connected in the side wall of leg set, the installs case
Upper through alignment pin is provided with, the alignment pin is slidably connected with installs case, and the alignment pin is located in the side wall in installs case solid
Surely locating ring is socketed with, the 3rd spring is socketed with the alignment pin, one end of the 3rd spring is fixedly connected on installs case
Madial wall on, the other end of the 3rd spring is fixedly connected on locating ring, and the alignment pin is located at one in installs case
The side wall that end covers through leg, the alignment pin are slidably connected with leg set, and one end that the alignment pin is located in leg set is provided with turn trough,
Ball is provided with the turn trough, the ball is slidably connected in the side wall for turning leg, and the side wall for turning leg is provided with and positioning
Pins position puts corresponding locating slot.
Preferably, one end that the alignment pin is located at outside installs case is fixedly connected with draw ring.
Preferably, the buffer gear includes sliding sleeve, and the upper end for turning leg is provided with standing groove, the standing groove it is relative
Madial wall is provided with limit sliding chutes, and the sliding sleeve is slidably connected in standing groove, and the side wall of the sliding sleeve is provided with and limit sliding chutes
The second corresponding position limiting slide block of position, second position limiting slide block are slidably connected in limit sliding chutes, the standing groove it is interior
Bottom is provided with the 4th spring, and one end that the 4th spring is located remote from groove inner bottom part is fixedly connected in sliding sleeve, the sliding sleeve
Upper end be fixedly connected on the lower end of trestle.
Preferably, it is described to turn leg and the lower end of multiple supporting legs is equipped with non-slip bumps.
Preferably, the upper end of the trestle is provided with cotton pad.
The present invention is simple in construction, easy to operate, and patient is put in oxter when in use, by crutch and supported, the cotton pad on trestle
The comfort of patient oxter can be increased, the setting of buffer gear enables patient, and crutch is close to oxter when walking, keeps steady
It is fixed.When the height of crutch is not suitable with the height of patient, can by draw ring pull alignment pin, first under compressive state
Spring produces thrust, and patient only needs to adjust oxter to the gravity of crutch, the height of crutch is reached suitable position, Ran Housong
Open draw ring, in the presence of the 3rd spring of alignment pin under compression, head into locating slot, be so achieved that crutch height
Adjustment.When running into the ground of out-of-flatness, the supporting leg of crutch lower end can be extended, to increase the contact with ground
Point, so as to increase the stability of crutch, supporting leg can be by the way that pull bar be pushed so that supporting leg deploys from stretching, extension mouth, then twists
Dynamic trip bolt, makes trip bolt inject in positioning hole, so as to have the function that fixed supporting leg.The present invention is easy to operate, can
Multiple types of floors road conditions are adapted to, increase the stability of crutch itself, and patient can rely on the gravity of itself to adjust crutch
Height, it is time saving and energy saving.
Brief description of the drawings
Fig. 1 is a kind of structural representation of medical crutch for being easy to patient to adjust height proposed by the present invention；
Fig. 2 is the schematic enlarged-scale view at A in Fig. 1；
Fig. 3 is the schematic enlarged-scale view at B in Fig. 1；
Fig. 4 is the schematic enlarged-scale view at C in Fig. 1.
In figure：1 cotton pad, 2 trestles, 3 first springs, 4 leg sets, 5 first position limiting slide blocks, 6 turn leg, 7 sliding sleeves, 8 the 4th springs,
9 second position limiting slide blocks, 10 locating slots, 11 balls, 12 installs cases, 13 draw rings, 14 alignment pins, 15 the 3rd springs, 16 annular stops
Block, 17 second springs, 18 pull bars, 19 trip bolts, 20 push rods, 21 supporting legs, 22 stretching, extension mouths, 23 chutes, 24 mounting blocks.
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 describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Reference picture 1-4, a kind of medical crutch for being easy to patient to adjust height, including leg set 4, the inside of leg set 4 are provided with one
First installation cavity of the end with opening, interior be provided with of the first installation cavity turn leg 6, and the side wall for turning leg 6 is fixedly connected with the first spacing cunning
Block 5, the first position limiting slide block 5 are slidably connected in the first installation cavity, and the madial wall of opening is provided with and the first position limiting slide block 5
Corresponding ring limit block 16 is put, the inner bottom part of the first installation cavity is fixedly connected with the first spring 3, and the first spring 3 is away from
One end of one installation cavity inner bottom part, which is fixedly connected on, turns on leg 6, and the side wall of leg set 4 is provided with position-limit mechanism, and the lower end for turning leg 6 is set
There is the second installation cavity, push rod 20 is slidably connected in the second installation cavity, the inner top of the second installation cavity is provided with second spring 17, the
The one end of two springs 17 away from the second installation cavity inner top is fixedly connected on push rod 20, and the lower end of push rod 20 is rotatably connected to more
Individual supporting leg 21, the side wall for turning leg 6 are provided with to the individual stretching, extension mouth 22 corresponding with the position of supporting leg 21, stretch the installation cavity of mouth 22 and second
Connection, the side wall of push rod 20 are provided with pull bar 18, and through the second installation cavity to turning outside leg 6, the side wall for turning leg 6 is provided with pull bar 18
The chute 23 corresponding with the position of pull bar 18, pull bar 18 are slidably connected in chute 23, and pull bar 18, which is located at, to turn outside leg 6
The side wall of one end is provided with mounting blocks 24, runs through on mounting blocks 24 and is provided with trip bolt 19, trip bolt 19 is threaded in peace
Fill on block 24, the side wall for turning leg 6 is provided with the positioning hole corresponding with the position of trip bolt 19, and trip bolt 19 slides with positioning hole
Connection, the upper end of leg set 4 are provided with trestle 2, buffer gear are provided between leg set 4 and trestle 2.
In the present invention, position-limit mechanism includes installs case 12, and installs case 12 is fixedly connected in the side wall of leg set 4, installs case
Through alignment pin 14 is provided with 12, alignment pin 14 is slidably connected with installs case 14, and alignment pin 14 is located at the side wall in installs case 12
Upper fixed cover is connected to locating ring, and the 3rd spring 15 is socketed with alignment pin 14, and one end of the 3rd spring 15 is fixedly connected on installation
On the madial wall of case 12, the other end of the 3rd spring 15 is fixedly connected on locating ring, and alignment pin 14 is located in installs case 12
One end covers 4 side wall through leg, and alignment pin 14 is slidably connected with leg set 4, and one end that alignment pin 14 is located in leg set 4, which is provided with, to be turned
Groove, is provided with ball 11 in turn trough, ball 11 is slidably connected in the side wall for turning leg 6, turn the side wall of leg 6 provided with and alignment pin 14
The corresponding locating slot 10 in position.One end that alignment pin 14 is located at outside installs case 12 is fixedly connected with draw ring 13.Buffer gear bag
Sliding sleeve 7 is included, the upper end for turning leg 6 is provided with standing groove, and the relative inner wall of standing groove is provided with limit sliding chutes, and sliding sleeve 7 is slidably connected
In standing groove, the side wall of sliding sleeve 7 is provided with second position limiting slide block 9 corresponding with limit sliding chutes position, and the second position limiting slide block 9 is slided
Dynamic to be connected in limit sliding chutes, the inner bottom part of standing groove is provided with the 4th spring 8, and the 4th spring 8 is located remote from the one of groove inner bottom part
End is fixedly connected in sliding sleeve 7, and the upper end of sliding sleeve 7 is fixedly connected on the lower end of trestle 2.Turn the lower end of leg 6 and multiple supporting legs 21
It is equipped with non-slip bumps.The upper end of trestle 2 is provided with cotton pad 1, increases comfort.
In the present invention, patient is put in oxter when in use, by crutch and supported, and the cotton pad 1 on trestle 2 can increase patient's armpit
Under comfort, the setting of buffer gear enables patient, and crutch is close to oxter when walking, keeps stable.When the height of crutch
When being not suitable with the height of patient, alignment pin 14 can be pulled by draw ring 13, the first spring 3 under compressive state is produced and pushed away
Power, patient only need to adjust oxter to the gravity of crutch, the height of crutch is reached suitable position, then unclamp draw ring 13,
In the presence of the 3rd spring 15 of alignment pin 14 under compression, head into locating slot 10, be so achieved that crutch height
Adjustment.When running into the ground of out-of-flatness, the supporting leg 21 of crutch lower end can be extended, to increase the contact with ground
Point, so as to increase the stability of crutch, supporting leg 21 can be by the way that pull bar 18 be pushed so that supporting leg 21 is opened up from stretching, extension mouth 22
Open, then turn trip bolt 19, trip bolt 19 is injected in positioning hole, so as to have the function that fixed supporting leg 21.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of medical crutch for being easy to patient to adjust height, including leg set (4), it is characterised in that the inside of the leg set (4)
There is the first installation cavity of opening provided with one end, be provided with first installation cavity and turn leg (6), the side wall for turning leg (6) is consolidated
Surely the first position limiting slide block (5) is connected with, first position limiting slide block (5) is slidably connected in the first installation cavity, the opening
Madial wall be provided with the ring limit block (16) corresponding with the first position limiting slide block (5) position, first installation cavity it is interior
Bottom is fixedly connected with the first spring (3), and the one end of first spring (3) away from the first installation cavity inner bottom part is fixedly connected on
Turn on leg (6), the side wall of the leg set (4) is provided with position-limit mechanism, and the lower end for turning leg (6) is provided with the second installation cavity, institute
State and push rod (20) is slidably connected in the second installation cavity, the inner top of second installation cavity is provided with second spring (17), described
The one end of second spring (17) away from the second installation cavity inner top is fixedly connected on push rod (20), the lower end of the push rod (20)
Multiple supporting legs (21) are rotatably connected to, the side wall for turning leg (6) is provided with to the individual stretching, extension mouth corresponding with supporting leg (21) position
(22), the stretching, extension mouth (22) connects with the second installation cavity, and the side wall of the push rod (20) is provided with pull bar (18), the push-and-pull
Through the second installation cavity to leg (6) is turned outside, the side wall for turning leg (6) is provided with corresponding with pull bar (18) position bar (18)
Chute (23), the pull bar (18) are slidably connected in chute (23), and the pull bar (18), which is located at, turns the one end of leg (6) outside
Side wall be provided with mounting blocks (24), through being provided with trip bolt (19), the trip bolt (19) on the mounting blocks (24)
It is threaded on mounting blocks (24), the side wall for turning leg (6) is provided with the positioning hole corresponding with trip bolt (19) position,
The trip bolt (19) is slidably connected with positioning hole, and the upper end of the leg set (4) is provided with trestle (2), the leg set (4) and frame
Buffer gear is provided between post (2).
A kind of 2. medical crutch for being easy to patient to adjust height according to claim 1, it is characterised in that position-limit mechanism bag
Installs case (12) is included, the installs case (12) is fixedly connected in the side wall of leg set (4), runs through being provided with the installs case (12)
Alignment pin (14), the alignment pin (14) are slidably connected with installs case (14), and the alignment pin (14) is located in installs case (12)
Side wall on fixed cover be connected to locating ring, the 3rd spring (15), the 3rd spring (15) are socketed with the alignment pin (14)
One end be fixedly connected on the madial wall of installs case (12), the other end of the 3rd spring (15) is fixedly connected on locating ring
On, the side wall of leg set (4), the alignment pin (14) and leg set are run through in one end that the alignment pin (14) is located in installs case (12)
(4) it is slidably connected, one end that the alignment pin (14) is located in leg set (4) is provided with turn trough, and ball (11) is provided with the turn trough,
The ball (11) is slidably connected in the side wall for turning leg (6), and the side wall for turning leg (6) is provided with and alignment pin (14) position
Corresponding locating slot (10).
A kind of 3. medical crutch for being easy to patient to adjust height according to claim 2, it is characterised in that the alignment pin
(14) it is fixedly connected with draw ring (13) positioned at the one end of installs case (12) outside.
A kind of 4. medical crutch for being easy to patient to adjust height according to claim 1, it is characterised in that the buffer
Structure includes sliding sleeve (7), and the upper end for turning leg (6) is provided with standing groove, and the relative inner wall of the standing groove is provided with spacing cunning
Groove, the sliding sleeve (7) are slidably connected in standing groove, and the side wall of the sliding sleeve (7) is provided with corresponding with limit sliding chutes position
Second position limiting slide block (9), second position limiting slide block (9) are slidably connected in limit sliding chutes, and the inner bottom part of the standing groove is set
There is the 4th spring (8), one end that the 4th spring (8) is located remote from groove inner bottom part is fixedly connected in sliding sleeve (7), the cunning
The upper end of set (7) is fixedly connected on the lower end of trestle (2).
5. a kind of medical crutch for being easy to patient to adjust height according to claim 1, it is characterised in that described to turn leg
(6) and the lower ends of multiple supporting legs (21) is equipped with non-slip bumps.
A kind of 6. medical crutch for being easy to patient to adjust height according to claim 1, it is characterised in that the trestle
(2) upper end is provided with cotton pad (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711117226.XA CN107714403A (en) | 2017-11-13 | 2017-11-13 | A kind of medical crutch for being easy to patient to adjust height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711117226.XA CN107714403A (en) | 2017-11-13 | 2017-11-13 | A kind of medical crutch for being easy to patient to adjust height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107714403A true CN107714403A (en) | 2018-02-23 |
Family
ID=61214517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711117226.XA Withdrawn CN107714403A (en) | 2017-11-13 | 2017-11-13 | A kind of medical crutch for being easy to patient to adjust height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107714403A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339244A (en) * | 2018-03-14 | 2018-07-31 | 佛山市亿永创网络科技有限公司 | A kind of intelligent tour auxiliary device Internet-based |
| CN108605478A (en) * | 2018-04-28 | 2018-10-02 | 芜湖盛科环保技术有限公司 | A kind of agricultural ditch formula seeder |
| CN108743247A (en) * | 2018-05-21 | 2018-11-06 | 郑思思 | A kind of medical patient's walk supporting device |
| CN109006046A (en) * | 2018-07-03 | 2018-12-18 | 黄山雾云间生态农业开发有限公司 | A kind of support device for chrysanthemum plantation |
| CN109044745A (en) * | 2018-06-28 | 2018-12-21 | 中国人民解放军总医院第附属医院 | A kind of ultralight crutch of burn amputee |
| CN109781455A (en) * | 2019-01-18 | 2019-05-21 | 甘肃施可丰生态科技有限公司 | A kind of chemical fertilizer production chemical fertilizer granule sampler |
| CN109833188A (en) * | 2019-02-25 | 2019-06-04 | 浙江工商大学 | A kind of guide saddle |
| CN109953858A (en) * | 2019-04-27 | 2019-07-02 | 窦清泉 | It is a kind of to facilitate the postoperative nursing recovery bed of craniocerebral trauma |
| CN111685461A (en) * | 2020-07-31 | 2020-09-22 | 熊坤 | Multifunctional walking stick |
| CN112618289A (en) * | 2021-01-05 | 2021-04-09 | 青岛市中心医院 | Protective intelligent walking stick for improving freezing gait of Parkinson disease patient |
| CN112870045A (en) * | 2021-01-20 | 2021-06-01 | 深圳市儿童医院 | Auxiliary massage device for infantile digestion treatment |
| CN113486889A (en) * | 2020-12-22 | 2021-10-08 | 广州城建职业学院 | Novel text recognition equipment |
-
2017
- 2017-11-13 CN CN201711117226.XA patent/CN107714403A/en not_active Withdrawn
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339244A (en) * | 2018-03-14 | 2018-07-31 | 佛山市亿永创网络科技有限公司 | A kind of intelligent tour auxiliary device Internet-based |
| CN108605478A (en) * | 2018-04-28 | 2018-10-02 | 芜湖盛科环保技术有限公司 | A kind of agricultural ditch formula seeder |
| CN108743247A (en) * | 2018-05-21 | 2018-11-06 | 郑思思 | A kind of medical patient's walk supporting device |
| CN109044745A (en) * | 2018-06-28 | 2018-12-21 | 中国人民解放军总医院第附属医院 | A kind of ultralight crutch of burn amputee |
| CN109006046B (en) * | 2018-07-03 | 2020-12-11 | 黄山雾云间生态农业开发有限公司 | A strutting arrangement for be used for chrysanthemum to plant |
| CN109006046A (en) * | 2018-07-03 | 2018-12-18 | 黄山雾云间生态农业开发有限公司 | A kind of support device for chrysanthemum plantation |
| CN109781455A (en) * | 2019-01-18 | 2019-05-21 | 甘肃施可丰生态科技有限公司 | A kind of chemical fertilizer production chemical fertilizer granule sampler |
| CN109781455B (en) * | 2019-01-18 | 2024-02-20 | 甘肃施可丰生态科技有限公司 | Chemical fertilizer particle sampler for chemical fertilizer production |
| CN109833188A (en) * | 2019-02-25 | 2019-06-04 | 浙江工商大学 | A kind of guide saddle |
| CN109953858A (en) * | 2019-04-27 | 2019-07-02 | 窦清泉 | It is a kind of to facilitate the postoperative nursing recovery bed of craniocerebral trauma |
| CN111685461A (en) * | 2020-07-31 | 2020-09-22 | 熊坤 | Multifunctional walking stick |
| CN113486889A (en) * | 2020-12-22 | 2021-10-08 | 广州城建职业学院 | Novel text recognition equipment |
| CN112618289A (en) * | 2021-01-05 | 2021-04-09 | 青岛市中心医院 | Protective intelligent walking stick for improving freezing gait of Parkinson disease patient |
| CN112870045A (en) * | 2021-01-20 | 2021-06-01 | 深圳市儿童医院 | Auxiliary massage device for infantile digestion treatment |
| CN112870045B (en) * | 2021-01-20 | 2024-04-26 | 深圳市儿童医院 | Auxiliary massage device for children digestion treatment |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180223 |
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| WW01 | Invention patent application withdrawn after publication |