CN109771247B - Leg edema air wave pressure therapeutic instrument - Google Patents

Leg edema air wave pressure therapeutic instrument Download PDF

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Publication number
CN109771247B
CN109771247B CN201910175639.6A CN201910175639A CN109771247B CN 109771247 B CN109771247 B CN 109771247B CN 201910175639 A CN201910175639 A CN 201910175639A CN 109771247 B CN109771247 B CN 109771247B
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base plate
plate
rotary
wall
groove
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Expired - Fee Related
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CN201910175639.6A
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CN109771247A (en
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张永红
王永华
李文娟
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Abstract

The invention relates to a leg edema air wave pressure therapeutic instrument which comprises a base plate, traveling wheels, a rotary cylinder, a driving mechanism and a pressing mechanism, wherein the base plate is of a ring-shaped structure, the traveling wheels are uniformly arranged on the side wall of the base plate along the circumferential direction of the base plate, the rotary cylinder is arranged in the base plate, the lower end of the rotary cylinder is connected with the side wall of the driving mechanism, an annular groove is formed in the inner wall of the rotary cylinder, the inner wall of the annular groove is connected with the side wall of the pressing mechanism, the pressing mechanism is arranged at the upper end of the base plate and comprises a rotary bevel gear, a rotary gear, a driving gear, a mounting plate and a driving rod, and the pressing mechanism comprises a mounting. The invention can solve the problems of limited application range, difficulty in pressing legs in time during outdoor exercise, poor air permeability, large occupied space and the like in the use process of the conventional air wave pressure therapeutic apparatus.

Description

Leg edema air wave pressure therapeutic instrument
Technical Field
The invention relates to the field of rehabilitation exercise equipment, in particular to an air wave pressure therapeutic instrument for leg edema.
Background
After outdoor exercises such as hiking and mountain climbing are carried out for a long time, the legs, particularly the lower legs, are often edematous, and in order to relieve the edematous condition, people often press the legs by using an air wave pressure therapeutic apparatus. The air wave pressure therapeutic apparatus mainly forms the circulating pressure of limbs and tissues by sequentially and repeatedly inflating and deflating the multi-cavity air bags, evenly and orderly extrudes the far end of the limbs to the near end of the limbs, promotes the flow of blood and lymph, improves the microcirculation effect, accelerates the backflow of the tissue fluid of the limbs, and is beneficial to preventing the formation of thrombus and preventing the edema of the limbs.
The existing air wave pressure therapeutic apparatus has some problems in the using process: (1) the electric power is needed for driving, and the occupied space is large, so the application range is limited, the carrying is inconvenient, and people are difficult to arrange for use when participating in outdoor activities for a long time; (2) when the leg is pressed, the part to be massaged needs to be completely wrapped, the air permeability is poor, and the comfort level of use is not ideal enough when the temperature is high.
In order to solve the problems, the invention provides an air wave pressure therapeutic apparatus for leg edema.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides an air wave pressure therapeutic apparatus for leg edema, which can solve the problems that the application range is limited, the legs are difficult to press in time during outdoor exercises, the air permeability is poor, the occupied space is large and the like in the use process of the conventional air wave pressure therapeutic apparatus.
The technical scheme adopted by the invention to solve the technical problem is as follows: a leg edema air wave pressure therapeutic apparatus comprises a substrate, walking wheels, a rotary drum, a driving mechanism and a pressing mechanism, wherein the substrate is of a ring-shaped structure, the walking wheels are uniformly arranged on the side wall of the substrate along the circumferential direction of the substrate, the rotary drum is arranged in the substrate, the lower end of the rotary drum is connected with the side wall of the driving mechanism, an annular groove is formed in the inner wall of the rotary drum, the inner wall of the annular groove is connected with the side wall of the pressing mechanism, and the pressing mechanism is arranged at the upper end of; wherein:
the driving mechanism comprises a rotary bevel gear, a rotary gear, a driving gear, a mounting plate and a driving rod, wherein the rotary bevel gear is of a hollow structure, the inner wall of the rotary bevel gear is connected with the lower end of the rotary cylinder, the upper end of the rotary bevel gear is connected with the side wall of the rotary bevel gear, the rotary bevel gear is mounted on the side wall of the substrate through a bearing, the rotary gear is mounted on the outer wall of the rotary bevel gear, the driving gear is meshed with the upper end of the rotary gear, the driving gear is mounted on the mounting plate through a bearing, the mounting plate; rotate the actuating lever through artifical mode, at drive gear, rotating gear and rotating bevel gear's common cooperation effect down, rotating bevel gear drives rotatory section of thick bamboo and rotates, make the elevator among the pressing means carry out reciprocating sliding in the ring channel when reciprocating linear motion from top to bottom in the lifting tank, thereby drive the inflater to the gasbag reciprocal aerify, breathe in, realize the massage function to user's shank, need not to use electric power to press, be convenient for relax the both legs when carrying out outdoor activities, alleviate fatigue.
The pressing mechanism comprises a mounting frame, a guide frame, a first expansion plate, a second expansion plate, a pressing branched chain, a lifting block and an inflator, the mounting frame is mounted on a base plate, the number of the mounting frame is four, the four mounting frames are uniformly arranged along the circumferential direction of the rotary cylinder, the mounting frame is of an inverted L-shaped structure, the upper end of the mounting frame is connected with the upper end of the guide frame, the lower end of the guide frame is tightly attached to the inner wall of the rotary cylinder, a lifting groove is formed in the side wall of the guide frame, the lifting groove is connected with one end of the lifting block in a sliding fit manner, the other end of the lifting block is mounted in a circular groove formed in the inner wall of the rotary cylinder in a sliding fit manner, the lower end of the lifting block is connected with the upper end of the inflator, the lower end of the inflator is mounted on the guide frame, the upper end, a second expansion plate is arranged in the second expansion groove in a sliding fit mode, and a pressing branched chain is arranged between the first expansion plate and the second expansion plate; after the length of the first expansion plate and the second expansion plate is properly adjusted according to the thickness of the legs of the user, the driving mechanism drives the inflator to repeatedly inflate and inhale air in the pressing branched chain, and the legs of the user are massaged.
As a preferred technical scheme of the invention, the pressing branched chain comprises an installation support plate, a fixed block, a sliding block, an air bag, a telescopic rod, a limiting plate, a limiting block and a limiting spring, the upper end of the installation support plate is connected with the side wall of a first expansion plate through a hinge, the lower end of the installation support plate is connected with the side wall of a second expansion plate through a hinge, a sliding groove is formed in the side wall of the installation support plate, the lower end of the sliding groove is fixedly provided with the fixed block, the upper end of the sliding groove is provided with the sliding block in a sliding fit manner, the air bag is connected between the fixed block and the sliding block, the lower end of the air bag is provided with an:
the upper end of the sliding block is provided with a limiting groove, limiting blocks are symmetrically arranged in the limiting groove in a front-back manner in a sliding fit mode, limiting plates are arranged on the outer sides of the limiting blocks, the limiting plates are arranged on the installation support plate, limiting ports are uniformly arranged on the limiting plates from top to bottom, the inner sides of the limiting blocks are connected with one end of a limiting spring, and the other end of the limiting spring is arranged on the side wall of the; massage the difference of position according to the user needs, adjust the sliding block position, later through mutually supporting of stopper and spacing spring, stretch into the stopper top on the limiting plate that corresponds in the spacing mouth that corresponds, avoid the sliding block position to slide, later drive the inflater through actuating mechanism and repeatedly aerify the gasbag in pressing the branch chain, breathe in, realize the massage to user's shank, the gasbag can not wrap up patient's shank is whole, the gas permeability when using has been improved, and can adjust the relative position of gasbag and shank according to actual conditions, so that massage comprehensively to the shank, improve the comfort level after pressing.
According to a preferred technical scheme, the side walls of the first expansion plate and the second expansion plate are respectively and uniformly provided with a limiting column from front to back, the outer sides of the first expansion groove and the second expansion groove are respectively provided with a U-shaped groove, the limiting columns are positioned in the U-shaped grooves, the outer wall of one limiting column is attached to the inner wall of the limiting groove formed in the side wall of the limiting frame, and the limiting frame is arranged on the mounting frame and the guide frame through a bearing.
As a preferred technical scheme of the invention, the substrate is averagely divided into a left part and a right part, the rear end of the left part of the substrate is connected with the rear end of the right part of the substrate through a hinge, and the front end of the left part of the substrate is connected with the front end of the right part of the substrate through a clamping manner.
As a preferred technical scheme of the invention, the rotary cylinder is averagely divided into a left part and a right part, the rear end of the left part of the rotary cylinder is connected with the rear end of the right part of the rotary cylinder through a hinge, and the front end of the left part of the rotary cylinder is connected with the front end of the right part of the rotary cylinder through a clamping manner.
According to a preferable technical scheme, the lower end of the guide frame is provided with a circular through hole, an inflating pipe is arranged in the circular through hole, and the inflating pipe is installed at the lower end of the inflator.
Compared with the prior art, the invention has the following advantages:
1. the invention has the advantages that the invention can be used in outdoor environment, relieves leg edema caused by climbing or long-time walking and the like, and has good air permeability when in use;
2. the leg massage device is provided with the driving mechanism, so that the pressing mechanism can be manually driven to massage the legs of a user, pressing can be performed without using electric power, the legs can be conveniently relaxed during outdoor activities, and fatigue is relieved;
3. the leg massage device is provided with the pressing mechanism, so that the legs of a user can be massaged, the air bag can not completely wrap the legs of the patient, the air permeability in use is improved, the relative position of the air bag and the legs can be adjusted according to actual conditions, the legs can be massaged comprehensively, and the comfort level after pressing is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
FIG. 3 is a schematic view of a first perspective structure between the rotary cylinder and the pressing mechanism of the present invention;
FIG. 4 is a schematic diagram of a second perspective structure between the rotary cylinder and the pressing mechanism according to the present invention;
fig. 5 is an enlarged view of the N-direction portion of fig. 4 according to the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 5.
An air wave pressure therapeutic instrument for leg edema comprises a substrate 1, walking wheels 2, a rotating cylinder 3, a driving mechanism 4 and a pressing mechanism 5, wherein the substrate 1 is of a ring-shaped structure, the walking wheels 2 are uniformly arranged on the side wall of the substrate 1 along the circumferential direction of the substrate, the rotating cylinder 3 is arranged in the substrate 1, the lower end of the rotating cylinder 3 is connected with the side wall of the driving mechanism 4, an annular groove is formed in the inner wall of the rotating cylinder 3, the inner wall of the annular groove is connected with the side wall of the pressing mechanism 5, and the pressing mechanism 5 is arranged at the upper end of the; wherein:
the driving mechanism 4 comprises a rotary bevel gear 41, a rotary bevel gear 42, a rotary gear 43, a driving gear 44, a mounting plate 45 and a driving rod 46, the rotary bevel gear 41 is of a hollow structure, the inner wall of the rotary bevel gear 41 is connected with the lower end of the rotary cylinder 3, the upper end of the rotary bevel gear 41 is connected with the side wall of the rotary bevel gear 42, the rotary bevel gear 42 is mounted on the side wall of the base plate 1 through a bearing, the rotary gear 43 is mounted on the outer wall of the rotary bevel gear 42, the driving gear 44 is meshed with the upper end of the rotary gear 43, the driving gear 44 is mounted on the mounting plate 45 through a bearing, the mounting plate 45 is mounted on the side; rotate actuating lever 46 through manual mode, at drive gear 44, rotating gear 43, under the combined action of rotating bevel gear 42 and rotating bevel gear 41, rotating bevel gear 41 drives rotatory section of thick bamboo 3 and rotates, make elevator 56 among the pressing means 5 carry out reciprocating sliding in the ring channel simultaneously carry out reciprocating linear motion from top to bottom in the lift inslot, thereby drive inflater 57 and reciprocate to aerify gasbag 554, breathe in, the realization is to the massage function of user's shank, need not to use electric power to press, be convenient for relax the both legs when carrying out outdoor activities, alleviate fatigue.
The pressing mechanism 5 comprises an installation frame 51, a guide frame 52, a first expansion plate 53, a second expansion plate 54, a pressing branched chain 55, a lifting block 56 and an inflator 57, the installation frame 51 is installed on the base plate 1, the number of the installation frame 51 is four, the four installation frames 51 are uniformly arranged along the circumferential direction of the rotary cylinder 3, the installation frame 51 is of an inverted L-shaped structure, the upper end of the installation frame 51 is connected with the upper end of the guide frame 52, the lower end of the guide frame 52 is tightly attached to the inner wall of the rotary cylinder 3, a lifting groove is formed in the side wall of the guide frame 52, one end of the lifting block 56 is connected with the lifting groove in a sliding fit mode, the other end of the lifting block 56 is installed in an annular groove formed in the inner wall of the rotary cylinder 3 in a sliding fit mode, the lower end of the lifting block 56 is connected with the upper end of the inflator 57, the, the inflating pipe is installed at the lower end of the inflator 57, a first telescopic groove is formed in the upper end of the installation frame 51, a first telescopic plate 53 is installed in the first telescopic groove in a sliding fit mode, a second telescopic groove is formed in the lower end of the guide frame 52, a second telescopic plate 54 is installed in the second telescopic groove in a sliding fit mode, and a pressing branched chain 55 is installed between the first telescopic plate 53 and the second telescopic plate 54; after the lengths of the first expansion plate 53 and the second expansion plate 54 are adjusted properly according to the thickness of the legs of the user, the driving mechanism 4 drives the inflator 57 to repeatedly inflate and inhale the air bag 554 in the pressing branch chain 55, so that the legs of the user are massaged.
The pressing branched chain 55 comprises an installation support plate 551, a fixing block 552, a sliding block 553, an air bag 554, a telescopic rod 555, a limiting plate 556, a limiting block 557 and a limiting spring 558, the upper end of the installation support plate 551 is connected with the side wall of the first expansion plate 53 through a hinge, the lower end of the installation support plate 551 is connected with the side wall of the second expansion plate 54 through a hinge, a sliding groove is formed in the side wall of the installation support plate 551, the lower end of the sliding groove is fixedly provided with the fixing block 552, the sliding block 553 is installed at the upper end of the sliding groove in a sliding fit mode, the air bag 554 is connected between the fixing block 552 and the sliding block 553, the lower end of the air bag 554 is provided with an air inlet:
the upper end of the sliding block 553 is provided with a limiting groove, limiting blocks 557 are symmetrically arranged in the limiting groove in a front-back sliding fit mode, a limiting plate 556 is arranged on the outer side of each limiting block 557, each limiting plate 556 is arranged on the installation support plate 551, limiting ports are uniformly arranged on each limiting plate 556 from top to bottom, the inner side of each limiting block 557 is connected with one end of a limiting spring 558, and the other end of each limiting spring 558 is arranged on the side wall of the sliding block 553; according to the difference of user's needs massage position, adjust sliding block 553 position, later mutually support through stopper 557 and spacing spring 558, stretch into the stopper 557 top and correspond in the spacing mouth that corresponds on the corresponding limiting plate 556 on the limiting plate 556, avoid sliding block 553 position to slide, later drive inflater 57 through actuating mechanism 4 and repeat aerifing the gasbag 554 in pressing the branch chain 55, breathe in, realize the massage to the user's shank, gasbag 554 can not wrap up patient's shank is whole, the gas permeability when using is improved, and can adjust the relative position of gasbag 554 and shank according to actual conditions, so that comprehensively massage the shank, improve the comfort level after pressing.
The base plate 1 is divided into a left part and a right part on average, the rear end of the left part of the base plate 1 is connected with the rear end of the right part of the base plate 1 through a hinge, and the front end of the left part of the base plate 1 is connected with the front end of the right part of the base plate 1 through a clamping mode.
The rotary drum 3 is equally divided into a left part and a right part, the rear end of the left part of the rotary drum 3 is connected with the rear end of the right part of the rotary drum 3 through a hinge, and the front end of the left part of the rotary drum 3 is connected with the front end of the right part of the rotary drum 3 through a clamping mode.
No. one expansion plate 53 and No. two expansion plates 54 all install spacing post backward in the past on the lateral wall, and U type groove has all been seted up with the flexible inslot side of No. two in a flexible groove, and spacing post is located U type inslot, and the spacing inslot wall of seting up on one of them spacing post outer wall and the spacing frame lateral wall is hugged closely mutually, and spacing is installed on mounting bracket 51 and leading truck 52 through the bearing, avoids expansion plate 53 and No. two expansion plates 54 length changes, and the effect is pressed in the influence.
When the pneumatic massage machine works, a user firstly connects an inflating pipe of the inflator 57 with an air inlet of the air bag 554, then places a leg to be massaged in the rotary cylinder 3, adjusts the lengths of the first expansion plate 53 and the second expansion plate 54 appropriately according to the thickness of the leg of the user, rotates the limiting frame to enable the limiting groove on the limiting frame to be attached to a corresponding limiting column, avoids the length change of the first expansion plate 53 and the second expansion plate 54, then manually rotates the driving rod 46, and under the combined cooperation effect of the driving gear 44, the rotating gear 43, the rotating bevel gear 42 and the rotary bevel gear 41, the rotary bevel gear 41 drives the rotary cylinder 3 to rotate, so that the lifting block 56 in the pressing mechanism 5 performs reciprocating linear motion in the lifting groove while performing reciprocating sliding in the annular groove, thereby driving the inflator 57 to perform reciprocating inflation on the air bag 554, Inhale the gas, realize the massage function to user's shank, can effectively alleviate the edema of shank.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a leg edema air wave pressure therapeutic instrument, includes base plate (1), walking wheel (2), rotatory section of thick bamboo (3), actuating mechanism (4) and pressing means (5), its characterized in that: the base plate (1) is of a circular ring type structure, walking wheels (2) are uniformly arranged on the side wall of the base plate (1) along the circumferential direction of the base plate, a rotary cylinder (3) is arranged in the base plate (1), the lower end of the rotary cylinder (3) is connected with the side wall of a driving mechanism (4), an annular groove is formed in the inner wall of the rotary cylinder (3), the inner wall of the annular groove is connected with the side wall of a pressing mechanism (5), and the pressing mechanism (5) is arranged at the upper end of the base plate (1); wherein:
the driving mechanism (4) comprises a rotary bevel gear (41), a rotary bevel gear (42), a rotary gear (43), a driving gear (44), a mounting plate (45) and a driving rod (46), the rotary bevel gear (41) is of a hollow structure, the inner wall of the rotary bevel gear (41) is connected with the lower end of the rotary cylinder (3), the upper end of the rotary bevel gear (41) is connected with the side wall of the rotary bevel gear (42), the rotary bevel gear (42) is mounted on the side wall of the base plate (1) through a bearing, the rotary gear (43) is mounted on the outer wall of the rotary bevel gear (42), the upper end of the rotary gear (43) is meshed with the driving gear (44), the driving gear (44) is mounted on the mounting plate (45) through a bearing, the mounting plate (45) is mounted on the side wall of;
the pressing mechanism (5) comprises mounting frames (51), a guide frame (52), a first expansion plate (53), a second expansion plate (54), pressing branched chains (55), lifting blocks (56) and an inflator (57), the mounting frames (51) are mounted on the base plate (1), the number of the mounting frames (51) is four, the four mounting frames (51) are uniformly arranged along the circumferential direction of the rotary cylinder (3), and the mounting frames (51) are of inverted-L-shaped structures;
the upper end of the mounting rack (51) is connected with the upper end of the guide frame (52), the lower end of the guide frame (52) is tightly attached to the inner wall of the rotary cylinder (3), the side wall of the guide frame (52) is provided with a lifting groove, the lifting groove is connected with one end of a lifting block (56) in a sliding fit mode, the other end of the lifting block (56) is arranged in an annular groove formed in the inner wall of the rotary cylinder (3) in a sliding fit mode, the lower end of the lifting block (56) is connected with the upper end of an inflator (57), the lower end of the inflator (57) is arranged on the guide frame (52), a first telescopic groove is formed in the upper end of the mounting frame (51), a first telescopic plate (53) is arranged in the first telescopic groove in a sliding fit mode, a second telescopic groove is formed in the lower end of the guide frame (52), a second telescopic plate (54) is arranged in the second telescopic groove in a sliding fit mode, and a pressing branched chain (55) is arranged between the first telescopic plate (53) and the second telescopic plate (54);
press branch chain (55) including installation extension board (551), fixed block (552), sliding block (553), gasbag (554), telescopic link (555), limiting plate (556), stopper (557) and limiting spring (558), installation extension board (551) upper end is connected with expansion plate (53) lateral wall through the hinge, installation extension board (551) lower extreme is connected with expansion plate (54) lateral wall No. two through the hinge, the sliding tray has been seted up on installation extension board (551) lateral wall, sliding tray lower extreme fixed mounting has fixed block (552), sliding block (553) are installed through the sliding fit mode in the sliding tray upper end, be connected with gasbag (554) between fixed block (552) and sliding block (553), the air inlet has been seted up to gasbag (554) lower extreme:
gasbag (554) middle part is from last down evenly being provided with square mouthful, install telescopic link (555) in the square mouth, telescopic link (555) is upper and lower extending structure, the spacing groove has been seted up to sliding block (553) upper end, stopper (557) are installed through the symmetry around the sliding fit mode in the spacing groove, limiting plate (556) have been arranged in stopper (557) outside, limiting plate (556) are installed on installation extension board (551), last down evenly installing spacing mouthful from last on limiting plate (556), stopper (557) inboard is connected with spacing spring (558) one end, spacing spring (558) other end is installed on sliding block (553) lateral wall.
2. The air wave pressure therapeutic apparatus for leg edema of claim 1, wherein: no. one expansion plate (53) and No. two expansion plate (54) lateral walls all in the past backward evenly install spacing post, and the U type groove has all been seted up with the expansion groove outside No. two, and spacing post is located U type inslot, and the spacing inslot wall of seting up on one of them spacing post outer wall and the spacing lateral wall is hugged closely mutually, and spacing passes through the bearing and installs on mounting bracket (51) and leading truck (52).
3. The air wave pressure therapeutic apparatus for leg edema of claim 1, wherein: the base plate (1) is divided into a left part and a right part on average, the rear end of the left part of the base plate (1) is connected with the rear end of the right part of the base plate (1) through a hinge, and the front end of the left part of the base plate (1) is connected with the front end of the right part of the base plate (1) through a clamping mode.
4. The air wave pressure therapeutic apparatus for leg edema of claim 1, wherein: rotatory section of thick bamboo (3) are evenly divided into two parts about, are connected through the hinge between rotatory section of thick bamboo (3) left part rear end and the rotatory section of thick bamboo (3) right part rear end, are connected through the joint mode between rotatory section of thick bamboo (3) left part front end and the rotatory section of thick bamboo (3) right part front end.
5. The air wave pressure therapeutic apparatus for leg edema of claim 1, wherein: the lower end of the guide frame (52) is provided with a circular through hole, an inflating pipe is arranged in the circular through hole, and the inflating pipe is arranged at the lower end of the inflator (57).
CN201910175639.6A 2019-03-08 2019-03-08 Leg edema air wave pressure therapeutic instrument Expired - Fee Related CN109771247B (en)

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CN109771247B true CN109771247B (en) 2020-12-22

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CN206777502U (en) * 2016-12-30 2017-12-22 郑州飞龙医疗设备有限公司 Pulse of air wave pressure therapeutic equipment
CN107874989A (en) * 2017-12-04 2018-04-06 广东美的安川服务机器人有限公司 Air wave treatment spacing method, system, computer equipment and storage medium
CN108324534A (en) * 2018-03-05 2018-07-27 浙江健智元生物科技有限公司 Air wave pressure apparatus

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US7942838B2 (en) * 2004-03-22 2011-05-17 Farrow Medical Innovations, Inc. Compression garment

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Publication number Priority date Publication date Assignee Title
CN206777502U (en) * 2016-12-30 2017-12-22 郑州飞龙医疗设备有限公司 Pulse of air wave pressure therapeutic equipment
CN107874989A (en) * 2017-12-04 2018-04-06 广东美的安川服务机器人有限公司 Air wave treatment spacing method, system, computer equipment and storage medium
CN108324534A (en) * 2018-03-05 2018-07-27 浙江健智元生物科技有限公司 Air wave pressure apparatus

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Granted publication date: 20201222