Upper limb three-cavity type gradient pressurization cuff and display module and control method thereof

Abstract

The invention belongs to the technical field of medical instruments, and discloses an upper limb three-cavity gradient pressurizing cuff which comprises a cuff body, and the cuff body is provided with a first pressurizing air bag, a second pressurizing air bag and a third pressurizing air bag which are sequentially arranged from bottom to top; the number of the air pump assemblies corresponds to that of the pressurizing air bags, and the air pump assemblies are relatively independent and inject air into the corresponding pressurizing air bags; the control display unit is electrically connected with the air pump assembly, controls the inflation time, the inflation volume and the inflation and deflation mode of the air pump assembly, and displays the pressure data of the pressurization air bag; the pressure sensing element is used for transmitting pressure data of the pressurizing air bag to the control display unit; and the timer is used for transmitting working time data of the air pump assembly to the control display unit. By means of three-cavity air bag separate control, real-time pressure monitoring and time monitoring, decreasing and interval gradient pressurization from the far end to the near end of the arm is achieved, and therefore upper limb lymph and vein backflow is effectively promoted. The invention further provides a display module and a control method of the upper limb three-cavity gradient pressurization cuff.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a pneumatic physiotherapy device for promoting lymphatic and venous return in the upper limbs, and in particular an automatic control cuff with a three-chamber gradient pressurization function. Background Technology

[0002] Currently, pneumatic compression therapy devices are commonly used in clinical rehabilitation and nursing to prevent deep vein thrombosis, reduce lymphedema, and promote limb blood circulation. Traditional compression cuffs are usually single-chamber structures that apply uniform pressure to the entire limb, but their pressure gradient control is imprecise, resulting in limited therapeutic effects.

[0003] In addition, traditional equipment often relies on manual operation, making it impossible to visually monitor the pressure level, and it cannot automatically adapt to different patients' arm circumferences, posing a risk of uneven pressure distribution.

[0004] Therefore, there is an urgent need for an automated physiotherapy device that can automatically and accurately reduce pressure from distal to proximal end, and has real-time pressure monitoring and display functions. Summary of the Invention

[0005] The purpose of this invention is to provide an upper limb three-chamber gradient compression cuff, its display module, and control method.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: As a first aspect, the present invention provides an upper limb three-chamber gradient compression cuff, comprising a cuff body, the cuff body having a first compression airbag, a second compression airbag, and a third compression airbag arranged sequentially from bottom to top;

[0007] The number of air pump assemblies corresponds to the number of pressurized airbags, and each air pump assembly is relatively independent, injecting air into the corresponding pressurized airbags respectively;

[0008] The control and display device is electrically connected to the air pump assembly to control the inflation time, inflation volume, and inflation / deflation mode of the air pump assembly, and displays the pressure data of the pressurized airbag.

[0009] The pressure sensing element transmits the pressure data of the inflatable airbag to the control and display device;

[0010] The timer transmits the operating time data of the air pump assembly to the control and display device.

[0011] According to the present invention, the diameters of the first, second, and third pressurized airbags gradually increase to adapt to the contour of the arm.

[0012] According to the present invention, the air pump assembly further includes a first air pump, a second air pump, and a third air pump, and the other ends of the three air injection pipes that are respectively connected to each air pump are respectively connected to the corresponding pressurized airbags.

[0013] According to the present invention, each pressure sensing element is further electrically connected to a relatively independent pressure data analysis unit, and the pressure data analysis unit is communicatively connected to the corresponding air pump through a control display device.

[0014] According to the present invention, it further includes a timer that records the operating time of each air pump and is communicatively connected to each air pump via a control display device.

[0015] According to the present invention, the control display device further includes a pressure monitoring module and a time monitoring module that are communicatively connected to the cuff body and the air pump assembly.

[0016] As a second aspect, the present invention also provides a control method for an upper limb three-chamber gradient compression cuff, comprising the following steps:

[0017] The physiotherapy device is turned on according to the switch signal, and the maximum pressure value P is set. 最高 The physiotherapy device is activated. The first, second, and third air pumps inflate and pressurize the first, second, and third pressurized airbags sequentially and at intervals, respectively, and adjust the pressure of the three pressurized airbags according to the control logic.

[0018] The control logic is as follows:

[0019] The pressure data analyzer monitors the real-time pressure of each inflator;

[0020] Pressure feedback signals and timers control the inflation and deflation of each air pump via a control display device;

[0021] When the timer starts counting down for the first 5 minutes, the first inflated airbag is at 0-P. 最高 The inflation and deflation cycles continuously until the timer stops;

[0022] When the timer starts counting down for the second time after 5 minutes, the pressure in the first inflator is maintained at P. 最高 -2 kPa; the second pressurized airbag is at 0 to (P 最高 –2) Cycle the gas in and out between kPa until the timing stops;

[0023] When the timer starts counting down for the third time after 5 minutes, the pressure in the first and second inflatable airbags is maintained at P. 最高 -4 kPa, the third pressurized airbag is between 0 and (P 最高 –4) Cycle the gas between kPa and kPa until the timing stops.

[0024] Furthermore, the pressure regulation logic of the air pump assembly includes:

[0025] After the start signal is sent, the first air pump starts inflating and the timer starts, timing for 5 minutes;

[0026] When the pressure of the first pressurized airbag is greater than or equal to the preset maximum pressure P 最高 At that time, the first air pump stops inflating and begins to deflate;

[0027] When the pressure of the first inflator airbag drops to 0 kPa, the first inflation pump restarts, bringing the first inflator airbag back to 0-P. 最高 The system cycles through inflation and deflation.

[0028] When the timer stops, the first inflation pump stops inflating and begins deflation; when the pressure of the first pressurized airbag drops to 0 kPa, the timer starts again for 5 minutes, during which the first inflation pump continues to inflate, maintaining the pressure of the first pressurized airbag at P. 最高 At around -2 kPa, the second air pump begins inflation;

[0029] When the pressure of the second pressurized airbag is greater than or equal to the preset maximum pressure P 最高 At -2 kPa, the second air pump stops inflating and begins to deflate;

[0030] When the pressure of the second pressurized airbag drops to 0 kPa, the second inflation pump restarts, bringing the pressure of the second pressurized airbag back to 0 kPa. 最高 –2) Cyclic inflation and deflation between kPa;

[0031] When the timer stops, both the first and second air pumps stop inflating and begin deflation. When the pressure in both the first and second pressurized airbags drops to 0 kPa, the timer starts for the third time, timing for 5 minutes. The first air pump continues to inflate, maintaining the pressure in the first pressurized airbag at P. 最高 The pressure in the second pressurized airbag is maintained at approximately -4 kPa, thanks to the continuous inflation of the second air pump. 最高 At approximately -4 kPa, the third air pump begins inflation;

[0032] When the pressure of the third pressurized airbag is greater than or equal to the preset maximum pressure P 最高 At -4kPa, the third air pump stops inflating and begins to deflate;

[0033] When the pressure of the third pressurized airbag drops to 0 kPa, the third inflation pump restarts, bringing the pressure of the third pressurized airbag back to 0 kPa. 最高 –4) Cyclic inflation and deflation between kPa;

[0034] When the timer stops, the first, second, and third air pumps all stop inflating and begin deflation to 0 kPa.

[0035] Furthermore, the control logic includes: automatically cutting off power and reducing air pressure to zero when the physiotherapy device has been working continuously for more than the maximum preset time.

[0036] As a third aspect, the present invention also provides a display module for an upper limb three-chamber gradient compression cuff. The display unit includes an independent display column for displaying the pressure inside the three compression cuffs, a time progress bar for displaying the timer's three start-ups, a physiotherapy device switch, and a maximum pressure P. 最高 Setting button, physiotherapy device start button.

[0037] The beneficial effects of this invention are as follows: This invention achieves decreasing, intermittent gradient inflation from the distal to the proximal end of the arm through three-chamber balloon control, real-time pressure monitoring, and time monitoring, thereby effectively promoting lymphatic and venous return in the upper limb. This device uses an automatic air pump for pressurization and monitors whether the set pressure value has been reached within the balloon via a pressure sensor. There is no need to adjust the cuff thickness using Velcro or straps; the balloon provides even coverage, ensuring uniform pressure distribution within the balloon. The advantages of this device are its applicability to a wide range of patients, visualized pressure adjustment, automatic gradient inflation, safety, reliability, and high comfort. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the connection structure between the upper limb three-chamber gradient compression cuff and the control and display device of the present invention;

[0039] Figure 2 This is a cross-sectional view of the upper limb three-chamber gradient compression cuff of the present invention;

[0040] Figure 3 This is a schematic diagram of the display column / strip arrangement of the control display device of the present invention;

[0041] Figure 4 This is a schematic diagram showing the connection between the control display device and the air pump assembly of the present invention. Detailed Implementation

[0042] To make the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings:

[0043] like Figure 1 As shown in the figure, this application discloses a three-chamber gradient compression cuff for the upper limb, including a cuff body 1. The cuff body 1 has three independent compression airbags, arranged sequentially from the distal end to the proximal end of the limb, i.e., from the wrist to the armpit, with the three compression airbags increasing in diameter. The airbags wrap around the upper limb in a ring, namely the first compression airbag 11, the second compression airbag 12, and the third compression airbag 13. Each compression airbag is equipped with a corresponding air pump assembly 2. Each air pump assembly operates relatively independently and can pressurize the corresponding compression airbag individually according to different needs.

[0044] like Figures 1 to 4 As shown, the air pump assembly includes three independent inflation pumps: a first inflation pump 21, a second inflation pump 22, and a third inflation pump 23, and a first inflation pipe 211, a second inflation pipe 221, and a third inflation pipe 231, each individually connected to one of the inflation pumps. Each pressurized airbag has a first inflation port 111, a second inflation port 121, and a third inflation port 131 on its inner side. Each inflation pump injects air into its corresponding pressurized airbag through the inflation pipe and inflation port. A first pressure sensing probe 112, a second pressure sensing probe 122, and a third pressure sensing probe 132 are installed above each pressurized airbag. The pressure monitoring module 31 in the control and display device 3 independently monitors the air pressure inside each pressurized airbag, and the pressure data analysis unit 33 provides feedback signals to control the inflation of the inflation pumps, thereby achieving fully automatic pressurization of each pressurized airbag. The control and display device 3 also includes a time monitoring module, which periodically activates and regulates each air pump, and displays the real-time pressure of each pressurized airbag and the running time of the physiotherapy device on the screen of the display instrument.

[0045] The control and display device 3 also includes a pressure data analysis unit 33 for analyzing the pressure of the corresponding pressurized airbag. There are three pressure data analysis units 33, each corresponding to one pressurized airbag.

[0046] The control display device 3 also includes a timer 32 to record the working time of each air pump.

[0047] The display screen of the control display device 3 includes independent display bars 34 showing the internal pressure of the three pressurized airbags, and a time display progress bar 35 showing the timer's three start-ups, with the highest pressure P... 最高 Setting key 36, physiotherapy device start key 37, and physiotherapy device switch 38.

[0048] In use, the first pressure airbag 11 is located between the middle of the lower arm and the wrist, the second pressure airbag 12 is located between the middle of the lower arm and the joint between the lower arm and the upper arm, and the third pressure airbag 13 is located between the upper arm and the armpit.

[0049] The physiotherapy device is turned on according to the switch signal, and the maximum pressure value P is set. 最高 The settable range is between 5-8 kPa. The first inflation pump 21, the second inflation pump 22, and the third inflation pump 23 sequentially and intermittently inflate and pressurize the first pressurized airbag 11, the second pressurized airbag 12, and the third pressurized airbag 13, respectively, and adjust the pressure of the three pressurized airbags according to the control logic; wherein, the control logic is:

[0050] Each pressure data analyzer monitors the real-time pressure of each inflator;

[0051] The pressure feedback signal from the pressure data analyzer and the timer 32 control the inflation and deflation of each air pump;

[0052] When timer 32 starts timing for the first time, 5 minutes have passed. The first inflatable airbag 11 is at 0-P. 最高 The inflation and deflation cycles continuously until the timer stops;

[0053] When timer 32 starts timing for the second time after 5 minutes, the pressure of the first inflatable airbag 11 is maintained at P. 最高 -2 kPa; the second pressurized airbag 12 is at 0 to (P 最高 –2) Cycle the air pressure between kPa and 12 until the timing stops; when the timer 32 starts timing for the third time for 5 minutes, the pressure of the first pressurized airbag 11 and the second pressurized airbag 12 is maintained at P. 最高 -4 kPa, the third pressurized airbag 13 is at 0 to (P 最高 –4) Cycle the gas between kPa and kPa until the timing stops.

[0054] The voltage regulation logic is as follows:

[0055] After the start signal is sent, the first air pump 21 starts inflating, and the timer 32 starts, timing for 5 minutes;

[0056] When the pressure of the first pressurized airbag 11 is greater than or equal to the preset maximum pressure P 最高 At this time, the first air pump 21 stops inflating and begins to deflate;

[0057] When the pressure of the first pressurized airbag 11 drops to 0 kPa, the first inflation pump 21 restarts, bringing the first pressurized airbag 11 back to 0-P. 最高 The system cycles through inflation and deflation.

[0058] When timer 32 stops, the first inflation pump 21 stops inflating and begins deflation. When the pressure of the first pressurized airbag 11 drops to 0 kPa, timer 32 starts again for 5 minutes, during which timer 32 continues to inflate, maintaining the pressure of the first pressurized airbag 11 at P. 最高 At approximately -2 kPa, the second air pump 22 begins inflation;

[0059] When the pressure of the second pressurized airbag 12 is greater than or equal to the preset maximum pressure P 最高 At -2kPa, the second air pump 22 stops inflating and begins to deflate;

[0060] When the pressure of the second pressurized airbag 12 drops to 0 kPa, the second inflation pump restarts, bringing the pressure of the second pressurized airbag 12 back to 0 kPa. 最高 –2) Cyclic inflation and deflation between kPa;

[0061] When timer 32 stops, both the first inflation pump 21 and the second inflation pump 22 stop inflating and begin deflation. When the pressure of both the first pressurized airbag 11 and the second pressurized airbag 12 drops to 0 kPa, timer 32 starts for the third time, timing for 5 minutes. The first inflation pump 21 continues to inflate, maintaining the pressure of the first pressurized airbag 11 at P. 最高 The second inflation pump 22 continuously inflates the second pressurized airbag 12 at a pressure of approximately -4 kPa, maintaining the pressure at P. 最高 At approximately -4 kPa, the third air pump 23 begins inflation;

[0062] When the pressure of the third pressurized airbag 13 is greater than or equal to the preset maximum pressure P 最高 At -4kPa, the third air pump 23 stops inflating and begins to deflate;

[0063] When the pressure of the third pressurized airbag 13 drops to 0 kPa, the third inflation pump 23 restarts, bringing the pressure of the third pressurized airbag 13 back to 0 kPa. 最高 –4) Cyclic inflation and deflation between kPa;

[0064] When timer 32 stops, the first air pump 21, the second air pump 22 and the third air pump 23 all stop inflating and begin deflation to 0 kPa.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the present invention, and these improvements and additions should also be considered within the scope of protection of the present invention. Any modifications, alterations, and equivalent changes made by those skilled in the art based on the above-disclosed technical content without departing from the spirit and scope of the present invention are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A three-chamber gradient compression cuff for the upper limb, characterized in that, include, The cuff body has a first pressure airbag, a second pressure airbag, and a third pressure airbag arranged from bottom to top. The number of air pump assemblies corresponds to the number of pressurized airbags, and each air pump assembly is relatively independent, injecting air into the corresponding pressurized airbags respectively; The control and display device is electrically connected to the air pump assembly to control the inflation time, air volume, and inflation / deflation mode of the air pump assembly, and to display the pressure data of the pressurized airbag. The pressure sensing element transmits the pressure data of the inflatable airbag to the control and display device; The timer transmits the operating time data of the air pump assembly to the control and display device.

2. The upper limb three-chamber gradient compression cuff as described in claim 1, characterized in that, The diameters of the first, second, and third pressurized airbags gradually increase to fit the contours of the arm.

3. The upper limb three-chamber gradient compression cuff according to claim 1, characterized in that, The air pump assembly includes a first air pump, a second air pump, and a third air pump, with the other end of three air injection pipes connected to each air pump respectively connected to the corresponding pressurized airbag.

4. The upper limb three-chamber gradient compression cuff according to claim 1, characterized in that, Each pressure sensing element is electrically connected to a relatively independent pressure data analysis unit, which is communicatively connected to the corresponding air pump through a control display device.

5. The upper limb three-chamber gradient compression cuff according to claim 3, characterized in that, It also includes a timer that records the working time of each air pump and is connected to each air pump via a control display device.

6. The upper limb three-chamber gradient compression cuff according to any one of claims 1-5, characterized in that, The control and display device also includes a pressure monitoring module and a time monitoring module that are communicatively connected to the cuff body and the air pump assembly.

7. The control method for the upper limb three-chamber gradient compression cuff as described in claim 6, characterized in that: Includes the following steps: The physiotherapy device is turned on according to the switch signal, and the maximum pressure value P is set. 最高 The physiotherapy device is activated. The first, second, and third air pumps inflate and pressurize the first, second, and third pressurized airbags sequentially and at intervals, respectively, and adjust the pressure of the three pressurized airbags according to the control logic. The control logic is as follows: The pressure data analyzer monitors the real-time pressure of each inflator; Pressure feedback signals and timers control the inflation and deflation of each air pump; When the timer starts counting down for the first 5 minutes, the first inflated airbag is at 0-P. 最高 The inflation and deflation cycles continuously until the timing stops; When the timer starts counting down for the second time after 5 minutes, the pressure in the first inflator is maintained at P. 最高 -2 kPa; the second pressurized airbag is at 0 to (P 最高 –2) Cycle the gas in and out between kPa until the timing stops; When the timer starts counting down for the third time after 5 minutes, the pressure in the first and second inflatable airbags is maintained at P. 最高 -4 kPa, the third pressurized airbag is between 0 and (P 最高 –4) Cycle the gas between kPa and 4 kPa until the timing stops.

8. The control method for the upper limb three-chamber gradient compression cuff as described in claim 7, characterized in that, The pressure regulation logic of the air pump assembly includes: After the start signal is sent, the first air pump starts inflating and the timer starts, timing for 5 minutes; When the pressure of the first pressurized airbag is greater than or equal to the preset maximum pressure P 最高 At that time, the first air pump stops inflating and begins to deflate; When the pressure of the first inflator airbag drops to 0 kPa, the first inflation pump restarts, bringing the first inflator airbag back to 0-P. 最高 The system cycles through inflation and deflation. When the timer stops, the first inflation pump stops inflating and begins deflation; when the pressure of the first pressurized airbag drops to 0 kPa, the timer starts again for 5 minutes, during which the first inflation pump continues to inflate, maintaining the pressure of the first pressurized airbag at P. 最高 At around -2 kPa, the second air pump begins inflation; When the pressure of the second pressurized airbag is greater than or equal to the preset maximum pressure P 最高 At -2 kPa, the second air pump stops inflating and begins to deflate; When the pressure of the second pressurized airbag drops to 0 kPa, the second inflation pump restarts, bringing the pressure of the second pressurized airbag back to 0 kPa. 最高 –2) Cyclic inflation and deflation between kPa; When the timer stops, both the first and second air pumps stop inflating and begin deflation. When the pressure in both the first and second pressurized airbags drops to 0 kPa, the timer starts for the third time, timing for 5 minutes. The first air pump continues to inflate, maintaining the pressure in the first pressurized airbag at P. 最高 The pressure in the second pressurized airbag is maintained at approximately -4 kPa, thanks to the continuous inflation of the second air pump. 最高 At approximately -4 kPa, the third air pump begins inflation; When the pressure of the third pressurized airbag is greater than or equal to the preset maximum pressure P 最高 At -4kPa, the third air pump stops inflating and begins to deflate; When the pressure of the third pressurized airbag drops to 0 kPa, the third inflation pump restarts, bringing the pressure of the third pressurized airbag back to 0 kPa. 最高 –4) Cyclic inflation and deflation between kPa; When the timer stops, the first, second, and third air pumps all stop inflating and begin deflation to 0 kPa.

9. The control method for the upper limb three-chamber gradient compression cuff as described in claim 7, characterized in that, The control logic includes: when the physiotherapy device operates continuously for more than the maximum preset time, it will automatically cut off the power and the air pressure will return to zero.

10. The display module of the upper limb three-chamber gradient compression cuff as described in claim 6, characterized in that: The control display unit includes independent display columns showing the pressure inside the three inflatable airbags, a progress bar showing the time of three start-ups of the timer, a switch for the physiotherapy device, and the maximum pressure P. 最高 Setting button, physiotherapy device start button.

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