CN112914975B - Portable driving device for external counterpulsation device - Google Patents
Portable driving device for external counterpulsation device Download PDFInfo
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- CN112914975B CN112914975B CN202110110033.1A CN202110110033A CN112914975B CN 112914975 B CN112914975 B CN 112914975B CN 202110110033 A CN202110110033 A CN 202110110033A CN 112914975 B CN112914975 B CN 112914975B
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- 230000005540 biological transmission Effects 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 9
- 235000017491 Bambusa tulda Nutrition 0.000 description 9
- 241001330002 Bambuseae Species 0.000 description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 9
- 239000011425 bamboo Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- 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
- A61H9/00—Pneumatic or hydraulic massage
- A61H9/005—Pneumatic massage
- A61H9/0078—Pneumatic massage with intermittent or alternately inflated bladders or cuffs
-
- 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
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/12—Driving means
- A61H2201/1238—Driving means with hydraulic or pneumatic drive
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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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of external counterpulsation devices, in particular to a portable driving device for an external counterpulsation device, which comprises an outer cylinder, wherein one end of the outer cylinder is provided with an outer cover, the other end of the outer cylinder is provided with a funnel shell, one end of the funnel shell is sleeved outside the outer cylinder, the inner wall of the funnel shell is annularly provided with a plurality of guide sliding blocks which are uniformly distributed, one end of each guide sliding block is contacted with a spring piece, the guide sliding blocks and the spring pieces are arranged in sliding grooves formed in the outer wall of the outer cylinder, and the outer cylinder is movably sleeved in the outer cylinder. Therefore, the rotating speed of the inclined plate fan blades is reduced, and automatic control and adjustment are realized.
Description
Technical Field
The invention relates to the technical field of external counterpulsation devices, in particular to a portable driving device for an external counterpulsation device.
Background
The portable driving device for the external counterpulsation device in the prior art realizes the effect of rotating air blowing and injecting air, improves the design of the driving device, improves the safety performance and the automation degree of the driving device, has great significance, needs to stop timely after the air bag is filled with air, and avoids the potential safety hazard caused by continuously using high air pressure on the air bag.
If the driving device has the effect of automatic pressure reduction regulation and realizes automatic regulation control, the problem can be solved, and the portable driving device for the external counterpulsation device is provided for the purpose.
Disclosure of Invention
The invention aims to provide a portable driving device for an external counterpulsation device, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a portable driving device for an external counterpulsation device comprises an outer barrel, wherein one end of the outer barrel is provided with an outer cover, the other end of the outer barrel is provided with a funnel shell, one end of the funnel shell is sleeved outside the outer barrel, a plurality of guide sliding blocks which are uniformly distributed are annularly arranged on the inner wall of the funnel shell, one end of each guide sliding block is contacted with a spring piece, the guide sliding blocks and the spring pieces are arranged in sliding grooves formed in the outer wall of the outer barrel, an inner barrel is movably sleeved in the outer barrel, a plurality of guide rods which are uniformly distributed are fixedly and annularly arranged on one side of the inner barrel, one end of each guide rod is fixed on the funnel shell, a control barrel is arranged in the inner barrel, a plurality of supporting rollers which are uniformly distributed are annularly arranged between the control barrel and the inner barrel, a central shaft and inclined plate fan blades are arranged in the control barrel, a plurality of inclined plate fan blades which are uniformly distributed are fixedly and annularly arranged on the outer wall of the central shaft, the one end of swash plate flabellum is fixed on the inner wall of control section of thick bamboo, the one end of center pin is connected with the main shaft, and main shaft one end extends to the cylinder groove of seting up on the center pin, and the tip of main shaft cyclic annular is equipped with a plurality of evenly distributed's screens post, the one end contact of screens post has the spring, fixed cover has a screens section of thick bamboo on the main shaft, and the outside movable sleeve of a screens section of thick bamboo has a support section of thick bamboo, fixed cyclic annular is equipped with a plurality of evenly distributed's support frame on the outer wall of a support section of thick bamboo, and the support frame is fixed on the inner wall of urceolus, the one end transmission of main shaft is connected with external post, and external post runs through the through-hole of seting up on the urceolus casing, and external post one end extends to the urceolus outside.
Preferably, the spring leaf is wavy plate-shaped, one end of the spring leaf is contacted with the guide sliding block, the other end of the spring leaf is contacted with the outer barrel, the funnel shell is in a shape that one end of the cylinder is integrally connected with the trapezoidal barrel, and the tip end of the trapezoidal barrel of the funnel shell is fixedly connected with the external connecting barrel.
Preferably, the supporting roller is in a shape that two symmetrically distributed clamping cylinders are fixedly sleeved on a cylinder, the supporting roller is arranged in an annular groove formed in the inner wall of the inner cylinder, the end part of the supporting roller extends into a circular plate groove formed in the inner wall of the annular groove of the inner cylinder, and the outer wall of the control cylinder is in contact with the supporting roller.
Preferably, the clamping column and the spring are movably sleeved in a cylindrical groove formed in the main shaft, one end of the clamping column is integrally connected with a hemisphere, the end of the hemisphere of the clamping column protrudes into a spherical groove formed in the bottom surface of the cylindrical groove of the central shaft, and one end of the spring is in contact with the bottom surface of the cylindrical groove in the main shaft.
Preferably, bevel gears are fixed on the butt joint end parts of the main shaft and the external column, the main shaft is in meshing transmission connection with the external column bevel gears, the supporting cylinder is in a cylinder shape, an annular groove is formed in the inner wall of the cylinder body, and the clamping cylinder is arranged in the annular groove of the supporting cylinder in a matching mode.
Preferably, the shape of dustcoat is the hemisphere shell form, and sets up a plurality of evenly distributed's through-hole on the casing of dustcoat, and the one end contact of urceolus has the dustcoat, and homogeneous body connection has the annular plate on the butt joint position outer wall of urceolus and dustcoat, and is connected with the bolt that a plurality of even annulars were established on two butt joint annular plates.
Compared with the prior art, the invention has the beneficial effects that:
1. the structure design of the invention realizes the effect that the rotation of the inclined plate fan blades causes the air flow to be injected into the air bag, after the air bag is filled with air, the air pressure at the position of the funnel shell is increased due to the continuous gas injection, and then the air pressure in the outer cylinder acts on the funnel shell, the funnel shell moves through the transmission control central shaft, and then the central shaft moves away from the main shaft, thereby breaking the state of synchronous transmission, reducing the rotating speed of the inclined plate fan blades and realizing automatic control and regulation;
2. the invention realizes the control of the funnel shell by utilizing the influence of air pressure, thus realizing the effect of automatic high-pressure regulation and avoiding the impact of over-high air pressure on the air bag, thereby ensuring the use safety of the air bag and having stable and powerful functions.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the structure at B in FIG. 1;
fig. 4 is a schematic structural view of the outer cylinder.
In the figure: the device comprises an outer cylinder 1, an outer cover 2, a funnel shell 3, a guide slider 4, a spring piece 5, an inner cylinder 6, a guide rod 7, a control cylinder 8, a support roller 9, a central shaft 10, inclined plate fan blades 11, a main shaft 12, a clamping column 13, a spring 14, a clamping cylinder 15, a support cylinder 16, a support frame 17, an external column 18, an external column 19, a hose 20, an air bag 21 and a bolt 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: a portable driving device for an external counterpulsation device comprises an outer barrel 1, one end of the outer barrel 1 is provided with an outer cover 2, the other end of the outer barrel 1 is provided with a funnel shell 3, one end of the funnel shell 3 is sleeved outside the outer barrel 1, the inner wall of the funnel shell 3 is annularly provided with a plurality of guide sliders 4 which are uniformly distributed, one end of each guide slider 4 is contacted with a spring leaf 5, the guide sliders 4 and the spring leaves 5 are arranged in chutes formed in the outer wall of the outer barrel 1, an inner barrel 6 is movably sleeved in the outer barrel 1, one side of the inner barrel 6 is fixedly and annularly provided with a plurality of guide rods 7 which are uniformly distributed, one end of each guide rod 7 is fixed on the funnel shell 3, a control barrel 8 is arranged in the inner barrel 6, a plurality of uniformly distributed supporting rollers 9 are annularly arranged between the control barrel 8 and the inner barrel 6, a central shaft 10 and a fan blade inclined plate 11 are arranged in the control barrel 8, a plurality of uniformly distributed inclined plate blades 11 are fixedly and annularly arranged on the outer wall of the central shaft 10, one end of the swash plate fan blade 11 is fixed on the inner wall of the control cylinder 8, one end of the central shaft 10 is connected with the main shaft 12, one end of the main shaft 12 extends into a cylindrical groove formed in the central shaft 10, the end part of the main shaft 12 is annularly provided with a plurality of evenly distributed clamping columns 13, one end of each clamping column 13 is contacted with a spring 14, the main shaft 12 is fixedly sleeved with a clamping cylinder 15, the outer movable sleeve of the clamping cylinder 15 is provided with a support cylinder 16, the outer wall of the support cylinder 16 is fixedly annularly provided with a plurality of evenly distributed support frames 17, the support frames 17 are fixed on the inner wall of the outer cylinder 1, one end of the main shaft 12 is in transmission connection with an outer connecting column 18, the outer connecting column 18 penetrates through a through hole formed in the shell of the outer cylinder 1, and one end of the outer connecting column 18 extends to the outer part of the outer cylinder 1.
The spring leaf 5 is wavy plate-shaped, the one end contact of spring leaf 5 has direction slider 4, the other end and the urceolus 1 contact of spring leaf 5, and the shape of funnel shell 3 is the trapezoidal section of thick bamboo of drum one end body coupling, and the trapezoidal section of thick bamboo point department fixedly connected with of funnel shell 3 connects a section of thick bamboo 19 outward.
The shape of the supporting roller 9 is that two clamping cylinders which are symmetrically distributed are fixedly sleeved on a cylinder, the supporting roller 9 is arranged in an annular groove formed in the inner wall of the inner cylinder 6, the end part of the supporting roller 9 extends into a circular plate groove formed in the inner wall of the annular groove of the inner cylinder 6, the outer wall of the control cylinder 8 is in contact with the supporting roller 9, and as can be understood by referring to fig. 3 and 4, the supporting rollers 9 play a role in assisting the rotation of the control cylinder 8 and reducing the influence of friction.
The clamping column 13 and the spring 14 are movably sleeved in a cylindrical groove formed in the main shaft 12, one end of the clamping column 13 is in a shape of a cylinder, the hemispheroid is integrally connected with one end of the cylinder, the end of the hemispheroid of the clamping column 13 protrudes into a spherical groove formed in the bottom surface of the cylindrical groove of the central shaft 10, and one end of the spring 14 is in contact with the bottom surface of the cylindrical groove in the main shaft 12.
The end parts of the main shaft 12 and the external column 18 which are butted are fixed with bevel gears, the main shaft 12 is in meshed transmission connection with the external column 18 bevel gears, the supporting cylinder 16 is in a cylinder shape, the inner wall of the cylinder body is provided with an annular groove, and the clamping cylinder 15 is arranged in the annular groove of the supporting cylinder 16 in a matching manner.
The shape of dustcoat 2 is the hemisphere shell form, and has seted up a plurality of evenly distributed's through-hole on the casing of dustcoat 2, and the one end contact of urceolus 1 has dustcoat 2, and homogeneous body coupling has the annular plate on the butt joint position outer wall of urceolus 1 and dustcoat 2, and is connected with the bolt 22 that a plurality of even annulars were established on two butt joint annular plates.
The working principle is as follows: one end of the external connection column 18 extends to the outside of the outer cylinder 1 and is connected with a driving mechanism in the prior art to control the external connection column 18 to rotate so as to drive the main shaft 12, the main shaft 12 rotates to drive the clamping column 13 and further control the central shaft 10 to rotate, the central shaft 10 drives the inclined plate fan blades 11, the inclined plate fan blades 11 rotate to cause airflow in the outer cylinder 1 to flow, the airflow is injected into the air bag 21 to realize air injection work, after the air bag 21 is filled with air, the rotation of the inclined plate fan blades 11 is inhibited by air pressure in a reverse direction, the springs 14 elastically support the clamping column 13, and further a certain relative dislocation rotation condition occurs between the central shaft 10 and the main shaft 12, namely the clamping state of the clamping column 13 is broken, besides, the air pressure in the outer cylinder 1 acts on the funnel shell 3 to force the funnel shell 3 to move away from the outer cylinder 1, the spring sheets 5 push the guide slide blocks 4 to drive the funnel shell 3, namely the rebound influence of the spring sheets 5 and the air pressure influence in the outer cylinder 1 act on the funnel shell 3 cooperatively, atmospheric pressure increases, and guide bar 7 removes and keeps away from urceolus 1, and simultaneously funnel shell 3 drives guide bar 7, and guide bar 7 drives inner tube 6, and mutual screens is supported between inner tube 6, a control section of thick bamboo 8 and the backing roll 9, and center pin 10 removes and keeps away from main shaft 12 like this, and then the screens influence of screens post 13 reduces, and swash plate fan blade 11 rotates and falls, and then solves the high atmospheric pressure problem in the urceolus 1.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a drive arrangement of portable for external counterpulsation device, includes urceolus (1), its characterized in that: an outer cover (2) is arranged at one end of the outer barrel (1), a funnel shell (3) is arranged at the other end of the outer barrel (1), one end of the funnel shell (3) is sleeved outside the outer barrel (1), a plurality of guide sliding blocks (4) which are uniformly distributed are annularly arranged on the inner wall of the funnel shell (3), a spring leaf (5) is contacted with one end of each guide sliding block (4), the guide sliding blocks (4) and the spring leaf (5) are arranged in a sliding groove formed in the outer wall of the outer barrel (1), an inner barrel (6) is movably sleeved in the outer barrel (1), a plurality of guide rods (7) which are uniformly distributed are annularly fixed on one side of the inner barrel (6), one end of each guide rod (7) is fixed on the funnel shell (3), a control barrel (8) is arranged in the inner barrel (6), and a plurality of uniformly distributed supporting rollers (9) are annularly arranged between the control barrel (8) and the inner barrel (6), the control device is characterized in that a central shaft (10) and inclined plate fan blades (11) are arranged in the control cylinder (8), a plurality of evenly distributed inclined plate fan blades (11) are fixedly and annularly arranged on the outer wall of the central shaft (10), one end of each inclined plate fan blade (11) is fixed on the inner wall of the control cylinder (8), one end of the central shaft (10) is connected with a main shaft (12), one end of the main shaft (12) extends into a cylindrical groove formed in the central shaft (10), a plurality of evenly distributed clamping columns (13) are annularly arranged at the end part of the main shaft (12), one end of each clamping column (13) is contacted with a spring (14), a clamping cylinder (15) is fixedly sleeved on the main shaft (12), a supporting cylinder (16) is movably sleeved outside the clamping cylinder (15), a plurality of evenly distributed supporting frames (17) are fixedly and annularly arranged on the outer wall of the supporting cylinder (16), and the supporting frames (17) are fixed on the inner wall of the outer cylinder (1), one end of the main shaft (12) is in transmission connection with an external connecting column (18), the external connecting column (18) penetrates through a through hole formed in the shell of the outer barrel (1), and one end of the external connecting column (18) extends to the outside of the outer barrel (1).
2. The portable driving device for the external counterpulsation device according to claim 1, wherein: the funnel is characterized in that the spring piece (5) is in a wavy plate shape, one end of the spring piece (5) is in contact with the guide sliding block (4), the other end of the spring piece (5) is in contact with the outer barrel (1), the funnel shell (3) is in a shape of a cylinder with one end integrally connected with a trapezoidal barrel, and the tip of the trapezoidal barrel of the funnel shell (3) is fixedly connected with an external connecting barrel (19).
3. The portable driving device for the external counterpulsation device according to claim 1, wherein: the supporting roller (9) is in a shape that two symmetrically distributed clamping cylinders are fixedly sleeved on a cylinder, the supporting roller (9) is arranged in an annular groove formed in the inner wall of the inner cylinder (6), the end part of the supporting roller (9) extends into a circular plate groove formed in the inner wall of the annular groove of the inner cylinder (6), and the outer wall of the control cylinder (8) is in contact with the supporting roller (9).
4. The portable driving device for the external counterpulsation device according to claim 1, wherein: the clamping column (13) and the spring (14) are movably sleeved in a cylindrical groove formed in the main shaft (12), one end of the clamping column (13) is in a cylindrical shape, one end of the clamping column is integrally connected with a hemisphere, the end of the hemisphere of the clamping column (13) protrudes into a spherical groove formed in the bottom surface of the cylindrical groove of the central shaft (10), and one end of the spring (14) is in contact with the bottom surface of the cylindrical groove in the main shaft (12).
5. The portable driving device for the external counterpulsation device according to claim 1, wherein: bevel gears are fixed on the butt joint end parts of the main shaft (12) and the external columns (18), the main shaft (12) is in meshed transmission connection with the bevel gears of the external columns (18), the supporting cylinder (16) is cylindrical, an annular groove is formed in the inner wall of the cylinder body, and the clamping cylinder (15) is arranged in the annular groove of the supporting cylinder (16) in a matched mode.
6. The portable driving device for the external counterpulsation device according to claim 1, wherein: the shape of dustcoat (2) is the hemisphere casing form, and has seted up a plurality of evenly distributed's through-hole on the casing of dustcoat (2), and the one end contact of urceolus (1) has dustcoat (2), and the homogeneous body is connected with the annular plate on the butt joint position outer wall of urceolus (1) and dustcoat (2), and is connected with bolt (22) that a plurality of even annulars were established on the annular plate of two butt joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110033.1A CN112914975B (en) | 2021-01-27 | 2021-01-27 | Portable driving device for external counterpulsation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110033.1A CN112914975B (en) | 2021-01-27 | 2021-01-27 | Portable driving device for external counterpulsation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112914975A CN112914975A (en) | 2021-06-08 |
| CN112914975B true CN112914975B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110110033.1A Active CN112914975B (en) | 2021-01-27 | 2021-01-27 | Portable driving device for external counterpulsation device |
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| CN (1) | CN112914975B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114681788B (en) * | 2022-03-29 | 2023-08-29 | 南方医科大学珠江医院 | Heart auxiliary circulation device and control method thereof |
| CN116327578B (en) * | 2023-04-03 | 2024-03-19 | 重庆普施康科技发展股份有限公司 | Push-pull type external counterpulsation device and control method |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200989U (en) * | 1987-01-23 | 1988-04-06 | 江苏省张家港市医疗设备厂 | Miniature extracorporeal counter pulsation |
| CN2230379Y (en) * | 1991-07-15 | 1996-07-03 | 杨辰圆 | Special valve for external counterpulsation |
| CN1035126C (en) * | 1993-11-02 | 1997-06-11 | 尚立昌 | Wave power air supply device |
| CN1049110C (en) * | 1993-12-22 | 2000-02-09 | 方展崇 | Pressure-type body-building device |
| AUPQ090499A0 (en) * | 1999-06-10 | 1999-07-01 | Peters, William S | Heart assist device and system |
| US6589267B1 (en) * | 2000-11-10 | 2003-07-08 | Vasomedical, Inc. | High efficiency external counterpulsation apparatus and method for controlling same |
| CN100394906C (en) * | 2003-07-25 | 2008-06-18 | 中山大学附属第一医院 | external counterpulsation driving device |
| US7491185B2 (en) * | 2003-08-21 | 2009-02-17 | Boston Scientific Scimed, Inc. | External counterpulsation device using electroactive polymer actuators |
| CN2652378Y (en) * | 2003-09-18 | 2004-11-03 | 杨辰圆 | Light external counterpulsation device |
| CN103100125B (en) * | 2013-02-21 | 2014-08-27 | 深圳市万聚源科技有限公司 | Air non-return pressure relief device |
| US20140276287A1 (en) * | 2013-03-12 | 2014-09-18 | David Anthony Pickett | External counterpulsation apparatus |
| CN105714469A (en) * | 2015-02-03 | 2016-06-29 | 海宁汉德袜业有限公司 | Dust removal mechanism in improved computer hosiery knitter |
| CN109498392A (en) * | 2018-12-22 | 2019-03-22 | 苏州好博医疗器械有限公司 | A kind of external counterpulsation air bag |
| CN212326902U (en) * | 2020-06-24 | 2021-01-12 | 安徽通灵仿生科技有限公司 | External counterpulsation device based on shock wave |
| CN111904051A (en) * | 2020-08-17 | 2020-11-10 | 代银霞 | Portable wearing device of protective clothing |
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2021
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Denomination of invention: A convenient driving device for an extracorporeal counterpulsation device Granted publication date: 20211109 Pledgee: China Minsheng Banking Corp Chongqing branch Pledgor: CHONGQING PSK-HEALTH SCI-TECH DEVELOPMENT CO.,LTD. Registration number: Y2024980040677 |