CN110227023B - Electromagnetic external counterpulsation device - Google Patents
Electromagnetic external counterpulsation device Download PDFInfo
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- CN110227023B CN110227023B CN201910463360.8A CN201910463360A CN110227023B CN 110227023 B CN110227023 B CN 110227023B CN 201910463360 A CN201910463360 A CN 201910463360A CN 110227023 B CN110227023 B CN 110227023B
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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
- A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
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Abstract
The invention belongs to the technical field of external counterpulsation, in particular to an electromagnetic external counterpulsation device, which comprises a slide block bracket, iron core blocks, a guide rail, a slide block and a pressing bent plate, wherein the iron core blocks are arranged on the slide block bracket, a plurality of iron core blocks which are arranged at intervals form a row of iron core block groups, and two rows of iron core block groups which are arranged in parallel at intervals are arranged on the slide block bracket; the iron core blocks are respectively wound with a coil, and the coil is electrified with current which is periodically switched on and off and has a direction changed so as to generate a magnetic field and drive the sliding block to move along the direction limited by the guide rail; the two pressing bent plates are arranged and drive the pressing bent plates to approach or separate from each other when the sliding block moves along the guide rail; the current is introduced into the coil wound on the iron core block to generate a magnetic field, and the magnetic field acts on the sliding block to enable the sliding block to move along the direction limited by the guide rail, so that the pressing bending plates are driven to be close to or away from each other, the limbs of a patient are squeezed or released, and the therapeutic effect of counterpulsation is realized.
Description
Technical Field
The invention belongs to the technical field of external counterpulsation, in particular to an electromagnetic external counterpulsation device.
Background
Counterpulsation is an auxiliary circulation method for reducing the systolic blood pressure and increasing the diastolic blood pressure in the aorta in a mechanical way so as to assist the heart to do work, improve blood circulation and increase blood perfusion of organs such as heart, brain, kidney and the like. The counterpulsation can increase the blood supply of coronary artery by increasing the diastolic pressure of aorta, rescue ischemic myocardium and improve the blood pumping function of heart. Commonly used counterpulsation methods include intra-aortic balloon counterpulsation and extra-corporeal counterpulsation.
The external counterpulsation is a method for non-invasively pressing the lower half body in vitro, relieves and eliminates the symptoms of angina pectoris, improves the anoxic and ischemic states of important organs of the body, and is medical equipment for preventing and treating cardiovascular and cerebrovascular diseases. The traditional external counterpulsation device inflates and pressurizes air bags at the diastole of the heart by the air bags wrapped on the limbs and the hip, so that the blood in the artery and the vein of the limbs returns to the heart, the diastolic pressure is obviously increased, the blood perfusion of important organs such as the heart, the brain and the like is improved, and the afterload of the heart is reduced; the air bag can exhaust air rapidly in the systole, the pressure is relieved, the systolic pressure in the aorta is reduced, the resistance in the cardiac ejection period is relieved to the maximum extent, and the blood flows to the far end in an accelerated way, thereby achieving the counterpulsation effect.
However, the conventional air bag inflation and pressurization method is not accurate enough in controlling the degree of the pressing force, and has slow speed response. Specifically, the process of inflating and pressurizing the airbag is a compression transfer process of gas, that is, the movement of the gas in the gas path is a pressure equalization process performed under the condition of pressure difference, and the process has a slow response speed relative to contact type mechanical extrusion; meanwhile, the gas circuit pressure change is nonlinear, so that the control is more complicated.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an electromagnetic external counterpulsation device.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electromagnetic external counterpulsation device, said external counterpulsation device comprising:
a slider bracket;
the iron core blocks are arranged on the sliding block bracket, a plurality of iron core blocks arranged at intervals form a row of iron core block groups, and two rows of iron core block groups arranged at intervals in parallel are arranged on the sliding block bracket;
the guide rail is arranged between the two iron core block groups and extends along the length direction of the iron core block groups;
the sliding block is sleeved on the guide rail, and permanent magnets are arranged on two sides of the sliding block close to the iron core block group;
the iron core blocks are respectively wound with a coil, and the coil is electrified with current which is periodically switched on and off and has a direction changed so as to generate a magnetic field and drive the sliding block to move along the direction limited by the guide rail;
the two pressing bent plates are arranged and drive the pressing bent plates to approach or separate from each other when the sliding block moves along the guide rail.
Preferably, the sliding block is provided with a dragging plate, one side of the dragging plate, which is close to the pressing bending plate, is provided with a groove extending along the plate length direction, a convex column is arranged in the groove, and a column body of the convex column, which is inserted in the groove, is in rolling fit with the groove wall of the groove through a bearing;
one end of the convex column, which protrudes out of the groove, is inserted into a strip-shaped groove formed in the bottom of the pressing bent plate, and the groove length direction of the strip-shaped groove and the length direction of the pressing bent plate form an included angle;
the bottom of pressing the bent plate still is equipped with the bar spacing groove that extends along its width direction, the slider support on be equipped with spacing post, the shaft of spacing post via the bearing with the cell wall roll fit of bar spacing groove.
Preferably, the convex columns positioned in the strip-shaped grooves are in rolling fit with the groove walls of the strip-shaped grooves through bearings.
Preferably, the press bending plate is provided with a flexible material on the opposite side.
Compared with the prior art, the invention has the following technical effects:
the electromagnetic external counterpulsation device provided by the invention generates a magnetic field by introducing current into the coil wound on the iron core block, and the magnetic field acts on the sliding block to enable the sliding block to move along the direction limited by the guide rail, so that the pressing bent plates are driven to mutually approach or separate from each other, and the limbs of a patient placed between the pressing bent plates are squeezed or released, thereby realizing the therapeutic effect of counterpulsation;
the external counterpulsation device avoids the problems of large noise, severe shaking, low response speed and poor counterpulsation treatment effect of the traditional pneumatic external counterpulsation device, and improves the curative effect and the comfort of patients.
Drawings
FIG. 1 is a schematic structural diagram of an electromagnetic external counterpulsation device provided by the present invention;
FIG. 2 is a schematic view of the electromagnetic external counterpulsation device in FIG. 1 in a contracted and squeezed state;
the reference numbers in the figures illustrate: 10-a slide block bracket, 101-a limiting column, 11-a slide block, 111-a permanent magnet, 12-a dragging plate, 121-a groove, 20-a core block, 30-a guide rail, 40-a pressing bent plate, 41-a strip-shaped groove, 42-a strip-shaped limiting groove and 50-a convex column.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.
Referring to fig. 1 and 2, the present invention provides an electromagnetic external counterpulsation device, which comprises a sliding block bracket 10, an iron core block 20, a guide rail 30, a sliding block 11 and a pressing curved plate 40; the iron core blocks 20 are arranged on the sliding block support 10, the plurality of iron core blocks 10 arranged at intervals form a row of iron core block groups, and two rows of iron core block groups arranged at intervals in parallel are arranged on the sliding block support 10; the guide rail 30 is arranged between the two iron core block groups and extends along the length direction of the iron core block groups; the slide block 11 is sleeved on the guide rail 30, and permanent magnets 111 are arranged on two sides of the slide block 11 close to the iron core block group; wherein, the iron core blocks 20 are all wound with coils, and the coils are electrified with current with periodic on-off and direction change to generate a magnetic field and drive the slide block 11 to move along the direction defined by the guide rail 30; the two press bending plates 40 are provided, and the press bending plates 40 are driven to approach or separate from each other when the slider 11 moves along the guide rail 30.
According to the invention, current is introduced into the coil wound on the core block 20 to generate a magnetic field, the direction of the magnetic field is determined by the direction of the current, according to the principle that like poles repel each other and opposite poles attract each other, the changed magnetic field force acts on the sliding block 11 and drives the sliding block 11 to move along the direction limited by the guide rail 30, and the pressing bent plates 40 are driven to approach or separate from each other in the moving process of the sliding block 11, so that the limbs of a patient placed between the pressing bent plates 40 are squeezed and released, and the therapeutic effect of counterpulsation is achieved.
In a specific implementation process, the coils on the adjacent core blocks 20 on the same side are energized with opposite currents, and the coils on the core blocks 20 on the opposite side are also energized with opposite currents, when the relaxation (as shown in fig. 1) needs to move in the compression and compression (as shown in fig. 2) direction, the coils on the core blocks 20 are energized in sequence from right to left, and after the energization, a component force is generated in the horizontal direction to push the slide block 11 to move from right to left. The current position of the slider 11 is calculated by a computer according to the initial position of the slider 11, in combination with parameters of the coil on the core block 20, such as the number of turns and the diameter of the coil, and the time and the magnitude of the applied current. In order to measure the position and the moving distance of the slider 11, a person skilled in the art may use a laser distance measuring sensor to feed back a position signal of the slider 11, or use a grating ruler to feed back position information of the slider 11.
Further, according to the present invention, as a specific implementation manner that the slider 11 drives the pressing curved plates 40 to approach or separate from each other, the slider 11 is provided with a dragging plate 12, one side of the dragging plate 12, which is close to the pressing curved plates 40, is provided with a groove 121 extending along the plate length direction thereof, a convex column 50 is arranged in the groove 121, and a column body of the convex column 50 inserted in the groove 121 is in rolling fit with a groove wall of the groove 121 through a bearing; specifically, both overhanging ends of the trailing plate 12 are provided with grooves 121.
One end of the convex column 50 protruding out of the groove 121 is inserted into a strip-shaped groove 41 formed in the bottom of the pressing bent plate 40, and an included angle is formed between the groove length direction of the strip-shaped groove 41 and the length direction of the pressing bent plate 40;
the bottom of the pressing bent plate 40 is also provided with a strip-shaped limiting groove 42 extending along the width direction of the pressing bent plate, the slider bracket 10 is provided with a limiting column 101, and the column body of the limiting column 101 is in rolling fit with the groove wall of the strip-shaped limiting groove 42 through a bearing. More preferably, in order to realize the stability of the movement of the press bending plate 40, two strip-shaped limiting grooves 42 are provided and are located at the bottoms of the two sides of the press bending plate 40.
Further, in the present invention, the convex column 50 located in the strip-shaped groove 41 is in rolling fit with the groove wall of the strip-shaped groove 41 through a bearing.
In the invention, the opposite side surfaces of the pressing bending plate 40 are provided with the flexible materials, and the arrangement of the flexible materials can prevent the skin of the limb of the patient from being scratched due to long-time friction or relieve the direct extrusion of the limb of the patient due to other accidents; in addition, the flexible material has the flexible characteristic of being beneficial to the uniform compression of the limbs of the patient and improving the effect of the counterpulsation treatment, and particularly, the flexible material can adopt a medical air bag, a medical liquid bag or rubber products such as silica gel and the like.
In the invention, the direction-changing current is introduced into the coil to generate a changing magnetic field to drive the slide block 11 to move along the guide rail 30, and the moving direction of the slide block 11 is changed to realize the mutual approaching or mutual separating of the pressing bent plates 40, the electromagnetic control generates PWM waves through decoupling control and vector control technology, and the current is sequentially introduced in the forward direction on the coil of the iron core block 20 to generate the magnetic field and control the slide block 11 to drive the slide block to move along the guide rail 30. And vice versa. The pressing bending plates 40 are moved toward or away from each other by changing the moving direction of the slider 11 by such a control manner and control technique. The pressing time, namely the trigger point, is obtained by acquiring the electrocardiosignals and the arterial pressure signals of the patient and processing the electrocardiosignals and the arterial pressure signals.
According to the invention, the displacement distance of the two pressing bent plates 40 to the center in the opposite direction is different from the position of the limb of a patient suitable for the displacement distance, specifically, for the counterpulsation treatment of the calf part, the displacement distance of the two pressing bent plates 40 to the center in the opposite direction is 8-15 cm, and for the counterpulsation treatment of the thigh part, the displacement distance of the two pressing bent plates 40 to the center in the opposite direction is 10-20 cm; in particular, the above-mentioned distance range is for the standard size (XL), and for different people, there are corresponding sizes of S, X, XL, XXL, and the present invention is not described herein again.
In a specific embodiment of the present invention, an included angle between the groove length direction of the strip-shaped groove 41 and the length direction of the pressing bending plate 40 is 40 °, the winding manner of the coils on the core block 20 adopts a three-phase winding mode, wherein a pair of the coils is 6, and two groups are provided, the center distance of the core block 20 is 20mm, the width of the coil is 20mm, and the length of the coil is 260 mm. Electromagnetic control is through decoupled control and vector control techniques. The slider 11 is controlled to complete the movement distance of 60mm within 200ms, the specific time is related to the heart rate, 30% of the electrocardio RR interval is electrified, and 70% of the electrocardio RR interval is powered off. For example, a human heart rate is 120 beats per minute. Each heartbeat is 500 ms. The on time is 150ms and the off time is 350 ms. After the human leg is put between the two pressing bending plates 40, the current position information is judged through the grating encoder. Through preset setting, the pressing bending plates 40 are controlled in advance to extrude oppositely according to real-time electrocardiosignals of a human body after counterpulsation is started, and then whether the target requirement of the extrusion force is met or not is judged in a feedback mode through the human body pressure wave detection device and the pressure detection device, so that proper adjustment is carried out. (the adjustment is done in two cycles). The initial position is restored after the predetermined compression. When a person performs external counterpulsation, the width of the thigh section of the shank is measured, a pressing bending plate 40 device with a proper model is selected, and the leg of the person lies down and is placed between the two pressing bending plates 40. The two pressing bending plates 40 are moved to be close to the legs of the person, and then counterpulsation is carried out through a counterpulsation switch of the control system.
The traditional pneumatic type external counterpulsation realizes the extrusion of limbs of a patient through a huge air compressor and an electromagnetic valve, thereby realizing the counterpulsation effect, and having large noise and severe jitter; miniaturization, community localization and family localization are not easy to realize; the electromagnetic external counterpulsation device provided by the invention has the characteristics of small volume and portability, and a patient can carry the device to home for treatment. In addition, the electromagnetic external counterpulsation device provided by the invention has the advantages of high response speed and good equipment stability, can better implement counterpulsation auxiliary functions, and further improves the curative effect and the comfort level of patients.
The foregoing shows and describes the general principles, essential features, and inventive features of this 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 described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. An electromagnetic external counterpulsation device, characterized in that, said external counterpulsation device comprises:
a slider bracket (10);
the iron core blocks (20) are arranged on the sliding block support (10), the iron core blocks (10) arranged at intervals form a row of iron core block groups, and two rows of iron core block groups arranged at intervals in parallel are arranged on the sliding block support (10);
the guide rail (30) is arranged between the two iron core block groups and extends along the length direction of the iron core block groups;
the sliding block (11) is sleeved on the guide rail (30), and permanent magnets (111) are arranged on the two sides, close to the iron core block group, of the sliding block (11);
wherein, the iron core blocks (20) are all wound with coils, and the coils are electrified with current with periodic on-off and direction change to generate a magnetic field and drive the slide block (11) to move along the direction limited by the guide rail (30);
two pressing bent plates (40) are arranged, and the two pressing bent plates (40) are driven to mutually approach or mutually separate when the sliding block (11) moves along the guide rail (30);
a dragging plate (12) is arranged on the sliding block (11), a groove (121) extending along the plate length direction is formed in one side, close to the pressing bent plate (40), of the dragging plate (12), a convex column (50) is arranged in the groove (121), and a column body, inserted into the groove (121), of the convex column (50) is in rolling fit with the groove wall of the groove (121) through a bearing;
one end of the convex column (50) protruding out of the groove (121) is inserted into a strip-shaped groove (41) formed in the bottom of the pressing bent plate (40), and the groove length direction of the strip-shaped groove (41) and the length direction of the pressing bent plate (40) form an included angle;
the bottom of pressing bent plate (40) still is equipped with along bar spacing groove (42) that its width direction extends, slider support (10) on be equipped with spacing post (101), the shaft of spacing post (101) via the bearing with the cell wall roll cooperation of bar spacing groove (42).
2. The electromagnetic external counterpulsation device according to claim 1, wherein the posts (50) located inside the slots (41) are in rolling engagement with the walls of said slots (41) via bearings.
3. The electromagnetic external counterpulsation apparatus according to claim 1, wherein said press flexural plate (40) is provided with flexible material on opposite sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463360.8A CN110227023B (en) | 2019-05-30 | 2019-05-30 | Electromagnetic external counterpulsation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910463360.8A CN110227023B (en) | 2019-05-30 | 2019-05-30 | Electromagnetic external counterpulsation device |
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| CN110227023A CN110227023A (en) | 2019-09-13 |
| CN110227023B true CN110227023B (en) | 2021-04-06 |
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Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GEP20012542B (en) * | 1997-02-24 | 2001-09-25 | Advanced Motion Tech Llc | Device for Rectilinear Motion |
| JPH10315085A (en) * | 1997-05-13 | 1998-12-02 | Nippon Steel Corp | Aligning device for ring-shaped object |
| US6589267B1 (en) * | 2000-11-10 | 2003-07-08 | Vasomedical, Inc. | High efficiency external counterpulsation apparatus and method for controlling same |
| US6620116B2 (en) * | 2000-12-08 | 2003-09-16 | Michael P. Lewis | External counterpulsation unit |
| IL171448A (en) * | 2005-10-16 | 2015-03-31 | Ads & B Invest Fund L P | Eecp device and an image system comprising the same |
| KR100922278B1 (en) * | 2009-08-25 | 2009-10-15 | 박진우 | Automatical hand massage machine |
| CN201609478U (en) * | 2010-02-10 | 2010-10-20 | 深圳先进技术研究院 | In vitro counterpulsation executive device |
| US9248330B1 (en) * | 2013-09-24 | 2016-02-02 | Nybil Ghanem | Leg strengthening device and associated use thereof |
| CN203988888U (en) * | 2014-06-30 | 2014-12-10 | 宁波秉航电子科技有限公司 | A kind of massage armchair arm airbag structure |
| CN104546415B (en) * | 2015-01-09 | 2017-01-18 | 厦门蒙发利科技（集团）股份有限公司 | Leg massager with adjustable width |
| CN106726322A (en) * | 2016-12-29 | 2017-05-31 | 吉林大学 | For bronchoscopy and the fixing device of operation |
| CN107582345B (en) * | 2017-10-17 | 2020-12-11 | 上海交通大学 | External counterpulsation execution device driven by ultrasonic linear motor |
| CN108785041B (en) * | 2018-03-12 | 2020-04-21 | 山东大学齐鲁医院(青岛) | Orthopedics rehabilitation massage device |
| CN209154450U (en) * | 2018-08-16 | 2019-07-26 | 兰州大学第一医院 | Orthopaedic nursing massage recovering device |
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- 2019-05-30 CN CN201910463360.8A patent/CN110227023B/en active Active
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Inventor after: Jie Qilian Inventor after: Jie Yao Inventor after: Yu Honglong Inventor after: Chen Hongkai Inventor after: Li Jian Inventor after: Shi Yunlai Inventor after: Wang Kun Inventor after: Xu Xiaoju Inventor before: Jie Qilian Inventor before: Jie Yao Inventor before: Yu Honglong Inventor before: Chen Hongkai Inventor before: Li Jian Inventor before: Shi Yunlai Inventor before: Zhao Chunsheng Inventor before: Wang Kun Inventor before: Xu Xiaoju |
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