CN222399438U - Motor-driven external counterpulsation device and system thereof - Google Patents
Motor-driven external counterpulsation device and system thereof Download PDFInfo
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- CN222399438U CN222399438U CN202420602513.9U CN202420602513U CN222399438U CN 222399438 U CN222399438 U CN 222399438U CN 202420602513 U CN202420602513 U CN 202420602513U CN 222399438 U CN222399438 U CN 222399438U
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000747 cardiac effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 230000004044 response Effects 0.000 abstract description 5
- 210000003414 extremity Anatomy 0.000 description 23
- 238000001125 extrusion Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 206010002383 Angina Pectoris Diseases 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
- 230000035488 systolic blood pressure Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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Abstract
本实用新型是一种响应及时、压力控制精度高的电机驱动式体外反搏装置及其系统，包括绑缚带和设置在绑缚带下方的托板，升降机构驱动托板上下运动挤压绑缚带以减小约束区面积或释放绑缚带以增大约束区面积，所述的升降机构包括分置于托板两侧的两个电机，电机的电机轴位于铅垂方向布置，电机通过转换组件与托板连接，转换组件将电机的旋转运动转换成托板在铅垂方向的直线运动。相较于传统的气囊充气加压的方式对挤压力度进行控制的方式来说，电机控制精度更高、相应更加及时，确保了体外反搏的效果。
The utility model is a motor-driven external counterpulsation device and system with timely response and high pressure control accuracy, including a binding belt and a support plate arranged below the binding belt, a lifting mechanism drives the support plate to move up and down to squeeze the binding belt to reduce the area of the restraint zone or release the binding belt to increase the area of the restraint zone, and the lifting mechanism includes two motors arranged on both sides of the support plate, the motor shaft of the motor is arranged in the vertical direction, the motor is connected to the support plate through a conversion component, and the conversion component converts the rotational motion of the motor into the linear motion of the support plate in the vertical direction. Compared with the traditional airbag inflation and pressurization method to control the squeezing force, the motor control accuracy is higher and the response is more timely, ensuring the effect of external counterpulsation.
Description
Technical Field
The utility model relates to the technical field of external counterpulsation equipment, in particular to a motor-driven external counterpulsation device and a system thereof.
Background
The external counterpulsation is a method for reducing and eliminating the symptoms of the angina pectoris by non-invasive external compression of the lower half body, improves the anoxic ischemia state of important organs of the organism, and is also medical equipment for preventing and treating cardiovascular and cerebrovascular diseases. The traditional external counterpulsation device inflates and pressurizes the air bags through the air bags wrapped on the limbs and the buttocks in the diastole of the heart, so that blood of arteries and veins of the limbs is returned to the heart, the diastole pressure is obviously increased, blood flow perfusion of vital organs such as heart, brain and the like is improved, the afterload of the heart is reduced, the air bags are rapidly exhausted in the systole of the heart, the pressure is relieved, the systolic pressure in the aorta is reduced, the resistance of the heart in the ejection period is relieved to the maximum extent, and the blood flows to the far end in an accelerating way, so that the counterpulsation effect is achieved.
However, the conventional air bag inflation pressurization mode is not accurate enough in control of extrusion force, and the speed response is slow. Specifically, the process of inflating and pressurizing the air bag is a compression transfer process of air, namely the process of carrying out pressure equalization on the air in an air path under the condition of pressure difference, the response speed of the process is slower compared with that of contact type mechanical extrusion, and meanwhile, the control is complex because the pressure change of the air path is nonlinear.
Disclosure of utility model
An object of the present utility model is to provide a motor-driven external counterpulsation apparatus which is responsive in time and has high accuracy of pressure control.
In order to achieve the aim, the motor-driven external counterpulsation device comprises a binding belt and a supporting plate arranged below the binding belt, wherein a lifting mechanism drives the supporting plate to move up and down to squeeze the binding belt so as to reduce the area of a constraint area or release the binding belt so as to increase the area of the constraint area, the lifting mechanism comprises two motors which are arranged on two sides of the supporting plate in a separated mode, motor shafts of the motors are arranged in the vertical direction, the motors are connected with the supporting plate through a conversion assembly, and the conversion assembly converts rotary motion of the motors into linear motion of the supporting plate in the vertical direction.
The lifting mechanism is arranged in the case, a notch for placing the binding belt and the supporting plate is formed in the middle of the case, the supporting plate is made of hard materials and is integrally in a U-shaped groove plate shape with an upward opening, the groove length is parallel to the axial direction of the binding belt, a flanging is arranged at the notch of the U-shaped groove, the plate surface of the flanging is arranged in the horizontal direction, and the motors on two sides synchronously drive the two flanging to linearly move in the vertical direction.
The conversion assembly comprises a ball screw, the lower end of the ball screw is in axial limiting and circumferential rotation fit with the top of the machine case through a coupler and a motor shaft, a ball nut is fixed on the flanging, the ball screw passes through the ball nut to form a transmission pair, and the motor drives the ball screw to rotate so as to drive the ball nut and the supporting plate to linearly move in the vertical direction.
The machine case is internally provided with guide posts, the guide posts are arranged in the vertical direction, the lower ends of the guide posts are fixed with the bottom of the machine case, the upper ends of the guide posts are fixed with the top of the machine case, and guide holes formed in flanges penetrated by the guide posts form guide fit.
The motor is positioned in the middle of the chassis, and the guide posts are respectively arranged at four corners of the supporting plate.
The bottom of the flanging is fixedly provided with a guide sleeve, the hole core of the guide sleeve coincides with the hole core of the guide hole, the guide posts are arranged in the guide sleeve to form guide fit, one of the guide posts is provided with a position sensor, and the position sensor collects position information of the supporting plate and feeds back the position information to the control unit.
The binding belt comprises an air bag of an inner layer and an outer binding belt, wherein the binding belt is made of a non-compliant material, two sides of the binding belt are fixed at the top of the case and are divided into an upper half body and a lower half body, the upper half body is provided with an opening and is fixed by a magic tape, and a notch is also arranged at the position of the air bag corresponding to the magic tape.
The support plate is provided with a plurality of hollowed-out parts at intervals along the length direction, and the turnup is also provided with the hollowed-out parts.
The outer surface of the case is uniformly and densely provided with heat dissipation holes.
It is another object of the present utility model to provide a motor-driven external counterpulsation system that responds in time with high accuracy in pressure control.
In order to achieve the aim, the technical scheme is that the motor-driven external counterpulsation system is characterized in that the air bag is connected with the air pump through a pipeline, the control system adjusts the pre-charge amount of the air bag according to the thickness of limbs of a patient, the pressure sensor collects the pressure of the air bag to the limbs and feeds the pressure back to the control system, and the control system controls the motor to sequentially transmit an upward pushing signal, a holding signal and a release signal for the motor in a cardiac pacing period.
In the scheme, when the device is used, the limb is inserted into the constraint area of the binding belt, then the lifting mechanism drives the supporting plate to move upwards, the binding belt is deformed by the upward extrusion force, the constraint area is reduced, the extrusion of the limb is realized, the machine driving mechanism drives the supporting plate to move downwards, the extrusion force on the binding belt is removed, the shape of the constraint area is recovered, and the sequential extrusion is carried out on the limb, so that the purpose of counterpulsation is achieved. Compared with the traditional air bag inflation and pressurization mode for controlling extrusion force, the motor control precision is higher, the motor control is correspondingly more timely, and the external counterpulsation effect is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an external counterpulsation apparatus;
FIGS. 2 and 3 are sectional views of FIG. 1;
FIG. 4 is a schematic diagram of the internal structure of an external counterpulsation apparatus;
Fig. 5 is a schematic structural view of the pallet.
Detailed Description
The utility model is discussed in further detail below in conjunction with fig. 1-5.
The utility model provides a motor drive formula external counterpulsation device, includes binding belt 10 and sets up the layer board 20 in binding belt 10 below, elevating system 30 drive layer board 20 up-and-down motion extrusion binding belt 10 in order to reduce the restriction area or release binding belt 10 in order to increase the restriction area, elevating system 30 include two motors 31 that divide to arrange in layer board 20 both sides, motor shaft 311 of motor 31 is located the plumb direction and arranges, motor 31 passes through conversion component 32 and is connected with layer board 20, conversion component 32 converts the rotary motion of motor 31 into the rectilinear motion of layer board 20 in the plumb direction.
When the device is used, a limb is inserted into a constraint area of the binding belt 10, then the lifting mechanism 30 drives the supporting plate 20 to move upwards, the binding belt 10 is deformed by upward extrusion force, the constraint area is reduced, the extrusion of the limb is realized, the lifting mechanism 30 drives the supporting plate 20 to move downwards, the extrusion force on the binding belt 10 is removed, the shape of the constraint area is recovered, and the sequential extrusion is performed on the limb, so that the purpose of counterpulsation is achieved.
Compared with the traditional air bag inflation and pressurization mode for controlling extrusion force, the motor control precision is higher, the response is more timely, and the external counterpulsation effect is ensured. And the air pump, the complex electromagnetic valve and the connecting pipeline are eliminated, the whole system has simple structure and low working noise. The lifting mechanism 30 is positioned below the supporting plate 20, the occupied area of the whole device is small, and the two motors 31 of the lifting mechanism 30 respectively apply force to the supporting plate 20 synchronously at two sides of the supporting plate 20, so that the supporting plate 20 moves more stably, and the counterpulsation effect is good.
In order to prevent external impurities from affecting the precise motion of the lifting mechanism 30, the lifting mechanism 30 is arranged in the case 40, a notch for placing the binding belt 10 and the supporting plate 20 is formed in the middle of the case 40, and the whole device is small in size and convenient to move. The supporting plate 20 is made of hard materials, is integrally in a U-shaped groove plate shape with an upward opening, the groove length is parallel to the axial direction of the binding belt 10, a flanging 21 is arranged at the notch of the U-shaped groove, the plate surfaces of the flanging 21 are arranged in the horizontal direction, and motors 31 on two sides synchronously drive the two flanging 21 to linearly move in the vertical direction. The case 40 can support the limb, and the case 40 can reduce noise caused by the operation of the device.
As a preferred scheme of the present utility model, the conversion assembly 32 includes a ball screw 321, the lower end of the ball screw 321 forms an axial limit and circumferential rotation fit with the motor shaft 311 and the upper end of the ball screw 321 and the top of the chassis 40 through a coupling 322, a ball nut 323 is fixed on the flange 21, the ball screw 321 passes through the ball nut 323 to form a transmission pair, and the motor 31 drives the ball screw 321 to rotate to drive the ball nut 323 and the supporting plate 20 to linearly move in the vertical direction. The ball screw transmission mechanism has the advantages of high precision, adopting rolling bodies such as balls and steel balls, realizing improvement of a movement mode on the basis of a sliding type screw, greatly improving transmission efficiency and reducing sliding problems, and (2) large load bearing capacity, introducing balls or other rolling bodies into an internal structure, improving force transmission effect, absorbing larger impact load and torque, so that the ball screw can bear larger load, and (3) stable movement, smoother movement and smaller friction force of the ball screw, so that fewer vibration and vibration are generated in operation, and (4) long service life, adopting rolling bodies such as balls, and the like, and being smoother than a sliding process, so that corresponding mechanical loss is smaller, and the service life of the ball screw is longer.
Because the load is larger, in order to improve the stability of the operation of the support plate 20, a guide post 33 is further provided in the case 40, the guide post 33 is arranged in the vertical direction, the lower end of the guide post 33 is fixed with the bottom of the case 40, the upper end of the guide post 33 is fixed with the top of the case 40, and the guide hole 211 formed in the flange 21 through which the guide post 33 passes forms guide fit.
Further, the motor 31 is located at the middle position of the chassis 40, and the guide posts 33 are disposed at each of the four corner positions of the support plate 20. That is, the two guide posts 33 are respectively arranged at the two ends of the flange 21 at the two sides of the supporting plate 20, 4 motors 31 are corresponding to the middle positions of the flange 21, so that the whole supporting plate 20 is uniformly stressed and stably moves, the supporting plate 20 gives uniform extrusion force to the binding belt 10, and the counterpulsation effect is good.
Further, the bottom of the flange 21 is fixed with a guide sleeve 331, the hole core of the guide sleeve 331 coincides with the hole core of the guide hole 211, and the guide post 33 is arranged in the guide sleeve 331 to form guide fit, and since the guide sleeve 331 has a certain length in the vertical direction, the support plate 20 can be ensured to move up and down in the vertical direction, one guide post 33 is provided with a position sensor 332, the position sensor 332 collects the position information of the support plate 20 and feeds back to the control unit, the stroke of the support plate 20 is monitored, the position sensor 332 and the motor controller are mutually matched, the accuracy of the running position of the support plate 20 is ensured, the extrusion force control accuracy is high, and the counterpulsation effect is good.
The binding belt 10 comprises an air bag 11 of an inner layer and a binding belt 12 of an outer layer, wherein the binding belt 12 is made of a non-compliant material, the binding belt 10 is wound on a limb of a patient, the inner layer serving as the binding belt 10 directly acts on the limb of the patient, the medical air bag 11 is adopted, so that the skin at the limb of the patient can be prevented from being scratched by long-time friction or other unexpected situations can be relieved, the direct extrusion of the limb of the patient can be reduced, in addition, the medical air bag 11 with the flexible characteristic is arranged to help the compression of the leg of the patient to be uniform, the counterpulsation treatment effect is improved, the outer layer of the binding belt 12 is made of the non-compliant material, and the binding belt is inelastic and can well restrict the limb. And the two sides of the binding belt 12 are fixed on the top of the case 40 and are divided into an upper half and a lower half, wherein the upper half is provided with an opening and is fixed by a magic tape, and a notch a is also arranged at the position corresponding to the air bag 11 and the magic tape. The setting of breach a and magic subsides is convenient for limbs insert the constraint area, and the lower half of bandage 12 is direct to be contacted with layer board 20, and when the upper half can guarantee that gasbag 11 upwards is extrudeed, the whole upward movement of restriction gasbag 11 to form the purpose of synchronous extrusion gasbag 11 from top to bottom, guarantee the homogeneity of gasbag 11 to limbs extrusion dynamics.
In order to reduce the weight of the supporting plate 20 and reduce the power of the motor 31, the purposes of light weight, small volume and low cost of the whole system are achieved, the supporting plate 20 is provided with a plurality of hollowed-out parts at intervals along the length direction, and the turnup 21 is also provided with the hollowed-out parts. The even extrusion force to the binding band 10 is ensured, and the weight of the whole device is reduced.
The motor 31 can produce a large amount of heat in the operation process, in order to guarantee holistic safe operation, the surface of quick-witted case 40 is for evenly densely distributed has the louvre, in time dispels the heat that motor 31 produced, can block in the external environment impurity entering machine case 40 again simultaneously, avoids influencing power system's normal function, improves the life of whole device.
A motor-driven external counterpulsation system is characterized in that an air bag 11 is connected with an air pump through a pipeline, a control system adjusts the pre-charge amount of the air bag 11 according to the thickness of a limb of a patient, a pressure sensor collects the pressure of the air bag 11 to the limb and feeds back the pressure to the control system, and the control system controls a motor 31 to sequentially transmit a push-up signal, a holding signal and a release signal to the motor 31 in a cardiac pacing period.
When the electrocardio signal sensor detects that R waves arrive, the control system sends an ascending signal to the controller of the motor 20, the pressure sensor measures the pressure of the air bag 11 on the limb in real time, when the pressure reaches a pressure appointed value, the control system sends a maintaining signal to the controller of the motor 20, and when the pressure is maintained for a certain time, the control system sends a descending signal to the controller of the motor 20, so that external counterpulsation is realized repeatedly. It should be noted that, the pre-charge of the air bag 32 is adjusted according to the thickness of the limb of the patient before counterpulsation, so as to ensure that the initial pressures of different patients are consistent, and the accurate extrusion of the limb can be realized by setting the ascending stroke of the supporting plate 20, and the counterpulsation effect is further improved by matching with the real-time monitoring of the pressure sensor.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition. Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (10)
1. The motor-driven external counterpulsation device comprises a binding belt (10) and a supporting plate (20) arranged below the binding belt (10), wherein a lifting mechanism (30) drives the supporting plate (20) to move up and down to press the binding belt (10) so as to reduce the area of a constraint area or release the binding belt (10) so as to increase the area of the constraint area, and the motor-driven external counterpulsation device is characterized in that the lifting mechanism (30) comprises two motors (31) which are respectively arranged at two sides of the supporting plate (20), motor shafts (311) of the motors (31) are arranged in the vertical direction, the motors (31) are connected with the supporting plate (20) through a conversion assembly (32), and the conversion assembly (32) converts rotary motion of the motors (31) into linear motion of the supporting plate (20) in the vertical direction.
2. The motor-driven external counterpulsation apparatus of claim 1, wherein the lifting mechanism (30) is disposed in the case (40), a gap for placing the binding belt (10) and the supporting plate (20) is formed in the middle of the case (40), the supporting plate (20) is made of hard material, the whole body is in a U-shaped groove plate shape with an upward opening, the groove length is parallel to the axial direction of the binding belt (10), a flange (21) is disposed at the notch of the U-shaped groove, the plate surfaces of the flange (21) are disposed in the horizontal direction, and the motors (31) on two sides synchronously drive the two flanges (21) to linearly move in the vertical direction.
3. The motor-driven external counterpulsation apparatus according to claim 2, wherein said switching assembly (32) comprises a ball screw (321), the lower end of said ball screw (321) is axially limited and circumferentially rotationally engaged with the motor shaft (311) and the upper end of said motor shaft and the top of said housing (40) via a coupling (322), a ball nut (323) is fixed to said flange (21), said ball screw (321) passes through said ball nut (323) to form a transmission pair, and said motor (31) drives said ball screw (321) to rotate to drive said ball nut (323) and said pallet (20) to linearly move in the vertical direction.
4. The motor-driven external counterpulsation apparatus according to claim 2, wherein a guide column (33) is further provided in the housing (40), the guide column (33) is disposed in a vertical direction, a lower end of the guide column (33) is fixed to a bottom of the housing (40), an upper end of the guide column is fixed to a top of the housing (40), and a guide hole (211) formed in a flange (21) through which the guide column (33) passes forms a guide fit.
5. The motor-driven external counterpulsation apparatus according to claim 4, wherein said motor (31) is located at the middle of the housing (40), and the guide posts (33) are disposed one at each of the four corners of the support plate (20).
6. The motor-driven external counterpulsation apparatus according to claim 4, wherein a guide sleeve (331) is fixed to the bottom of the flange (21), the hole core of the guide sleeve (331) coincides with the hole core of the guide hole (211), the guide posts (33) are placed in the guide sleeve (331) to form guide fit, a position sensor (332) is arranged on one of the guide posts (33), and the position sensor (332) collects position information of the support plate (20) and feeds back the position information to the control unit.
7. The motor-driven external counterpulsation apparatus according to claim 2, wherein said binding band (10) comprises an inner airbag (11) and an outer binding band (12), said binding band (12) is made of a non-compliant material, and both sides of said binding band (12) are fixed on the top of said case (40) and are divided into an upper half and a lower half, wherein said upper half is provided with an opening and is fixed by a velcro, and a notch (a) is provided at a position corresponding to said velcro of said airbag (11).
8. The motor-driven external counterpulsation apparatus according to claim 2, wherein said support plate (20) has a plurality of hollow portions spaced apart in a longitudinal direction thereof, and said flange (21) has hollow portions.
9. The motor-driven external counterpulsation apparatus according to claim 4, wherein said housing (40) has uniformly and densely arranged heat dissipation holes on its outer surface.
10. The motor-driven external counterpulsation system comprises the motor-driven external counterpulsation device according to any one of claims 1-9, and is characterized in that the air bag (11) is connected with the air pump through a pipeline, the control system adjusts the pre-charge amount of the air bag (11) according to the thickness of limbs of a patient, the pressure sensor collects the pressure of the air bag (11) on the limbs and feeds back the pressure to the control system, and the control system controls the motor (31) to sequentially transmit an upward pushing signal, a holding signal and a release signal to the motor (31) in a cardiac pacing period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420602513.9U CN222399438U (en) | 2024-03-27 | 2024-03-27 | Motor-driven external counterpulsation device and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420602513.9U CN222399438U (en) | 2024-03-27 | 2024-03-27 | Motor-driven external counterpulsation device and system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222399438U true CN222399438U (en) | 2025-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420602513.9U Active CN222399438U (en) | 2024-03-27 | 2024-03-27 | Motor-driven external counterpulsation device and system thereof |
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| Country | Link |
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| CN (1) | CN222399438U (en) |
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- 2024-03-27 CN CN202420602513.9U patent/CN222399438U/en active Active
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