Flexible pneumatic limb circulation promoting device capable of conveniently adjusting pressure

Abstract

The invention discloses a flexible pneumatic limb circulation promoting device facilitating pressure adjustment, and belongs to the technical field of pneumatic limb circulation promoting devices. The flexible pneumatic limb circulation promoting device facilitating pressure adjustment comprises a control host, a hose and a contact head, the hose is arranged on one side of the control host, and the other end of the hose is fixedly connected with the contact head; the detection adjusting mechanism comprises a negative pressure pump, an adjusting assembly and a contact assembly, the adjusting assembly is arranged between the negative pressure pump and the contact head, during circulation treatment, through a sealing cavity of the adjusting assembly and a rotating speed sensor, when the contact head sucks negative pressure, the skin is raised, and the higher the edema degree is through the raised skin volume, the higher the edema degree is; the more obvious the skin bulges, the more airflow passes through the rotating speed sensor, so that the edema degree is indirectly detected, the negative pressure intensity of the negative pressure pump is synchronously adjusted, the negative pressure intensity can be dynamically adjusted according to the actual condition of a patient, and more accurate lymphedema treatment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic limb circulation promoting devices, and in particular to a flexible pneumatic limb circulation promoting device which is easy to adjust pressure. Background Art

[0002] The pneumatic limb circulation promoting device is a medical device that uses pneumatic technology to promote limb lymph and blood circulation through negative pressure suction or pressurized release. The device is mainly used to treat and relieve limb edema caused by lymph retention and venous return obstruction. It can also be used to improve microcirculation, promote tissue metabolism, relieve fatigue and restore limb function.

[0003] Although the existing pneumatic limb circulation promoting device can promote lymph flow and relieve edema through negative pressure circulation, the degree of edema in different patients at different stages is different. Since the negative pressure suction of the device itself is usually fixed or has only a few stages of adjustment options, it cannot be dynamically adjusted according to the patient's actual edema degree, which affects the use effect of the pneumatic limb circulation promoting device.

[0004] In view of this, the present invention proposes a flexible pneumatic limb circulation promoting device that is easy to adjust the pressure to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0005] Based on this, it is necessary to provide a flexible pneumatic limb circulation promotion device that is easy to adjust the pressure to address the problem that the negative pressure suction of traditional devices is usually fixed or has only a few stages of adjustment options, and cannot be dynamically adjusted according to the patient's actual edema level, which affects the effectiveness of the pneumatic limb circulation promotion device.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A flexible pneumatic limb circulation promoting device that is easy to adjust pressure, comprising: a control host, a hose and a contact head, wherein a hose is provided on one side of the control host, and the other end of the hose is fixedly connected to the contact head; a detection and adjustment mechanism, wherein the detection and adjustment mechanism comprises a negative pressure pump, an adjustment component and a contact component, wherein an adjustment component is provided between the negative pressure pump and the contact head, and a contact component is provided on the outside of the contact head; wherein the adjustment component comprises a sealed chamber, a rotation speed sensor and an adjustment chamber, wherein the sealed chamber and the adjustment chamber are both fixedly mounted on the surface of the hose, the rotation speed sensor is fixedly mounted on one side of the sealed chamber, and the adjustment chamber is fixedly mounted on one side of the negative pressure pump; through the sealed chamber and the rotation speed sensor of the adjustment component, when the contact head inhales negative pressure, the skin bulges, and through the volume of the bulged skin, the higher the degree of edema, the more obvious the skin bulge, and the more airflow will pass through the rotation speed sensor, thereby indirectly detecting the degree of edema, and synchronously adjusting the negative pressure intensity of the negative pressure pump, and being able to dynamically adjust the negative pressure intensity according to the actual situation of the patient, to achieve more accurate lymphedema treatment.

[0008] In a preferred embodiment, the adjustment assembly further comprises a driving rod fixedly mounted inside the sealed cavity, a plurality of rotating plates are fixedly mounted on the outer side of the driving rod, and one end of the driving rod extends out of the sealed cavity and is fixedly connected to the rotation speed sensor.

[0009] In a preferred embodiment, a switching shell is rotatably installed inside the regulating chamber, a switching hole and two connecting holes are opened on the surface of the switching shell, the two connecting holes are located on the same horizontal axis, and a venting pipe is fixedly installed on the surface of the regulating chamber.

[0010] In a preferred embodiment, a motor is fixedly mounted on the surface of the regulating cavity, and an output end of the motor extends into the interior of the regulating cavity and is fixedly connected to the surface of the switching shell.

[0011] In a preferred embodiment, the regulating cavity and the switching shell are both configured to be spherical in shape, and a controller is fixedly mounted on one side of the sealed cavity.

[0012] In a preferred embodiment, the contact assembly comprises a flexible sleeve fixedly mounted on one side of the contact head, a detection ring is fixedly mounted on the outer side of the flexible sleeve, and a touch soft ring is arranged on the surface of the detection ring.

[0013] In a preferred embodiment, a plurality of supporting ribs are fixedly installed inside the flexible sleeve, and the plurality of supporting ribs are arranged in a mesh shape.

[0014] In a preferred embodiment, the detection ring is an internal hollow structure, a pressure sensor is arranged inside the detection ring, a plurality of piston rods are arranged at the bottom of the pressure sensor, and the other ends of the plurality of piston rods extend out of the detection ring.

[0015] In a preferred embodiment, a plurality of sealing tubes are fixedly installed at the bottom of the pressure sensor, and the plurality of piston rods are slidably installed inside the sealing tube. A limiting ring is fixedly installed inside the sealing tube, and a piston plate is provided on the top of the limiting ring, and the piston plate is slidably connected to the inner wall of the sealing tube.

[0016] In a preferred embodiment, the inner wall of the touch soft ring is threadedly connected to the surface of the detection ring, a limit plate is fixedly installed on the outer side of the detection ring, and a sealing groove is provided at the bottom of the limit plate, and a sealing ring is fixedly installed on the top of the touch soft ring, and the sealing ring is sealed and clamped with the sealing groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The flexible pneumatic limb circulation promoting device with easy pressure adjustment described in the present invention can adjust the sealed cavity and the speed sensor of the component during circulation treatment. When the contact head inhales negative pressure, the skin bulges. The higher the degree of edema, the more obvious the skin bulge, and the more airflow will pass through the speed sensor, thereby indirectly detecting the degree of edema and synchronously adjusting the negative pressure strength of the negative pressure pump. The negative pressure strength can be dynamically adjusted according to the actual situation of the patient, thereby achieving more accurate lymphedema treatment.

[0019] 2. Adjust the negative pressure time on the edema part by adjusting the switching shell. If the rotation speed is fast, it means the edema is severe. The controller drives the rotation of the switching shell through the motor, adjusts the position of the switching hole and the connecting hole, and prolongs the inhalation time. If the rotation speed is slow, it means the edema is mild. The controller shortens the inhalation time through the same adjustment method to prevent overtreatment.

[0020] 3. When the flexible sleeve fits the patient's skin, multiple piston rods transmit pressure to the pressure sensor inside the detection ring, and transmit the signal to the controller. Through multiple pressure feedbacks inside the detection ring, it can be judged whether the current contact head has completely sealed contact with the edema area. If some pressure point feedback is missing, the surface operator needs to adjust the position of the flexible sleeve or increase the downward pressure. This solves the problem that the negative pressure suction of the traditional device itself is usually fixed or has only a few stages of adjustment options, and cannot be dynamically adjusted according to the actual degree of edema of the patient, affecting the use effect of the pneumatic limb circulation promotion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the main structure of the flexible pneumatic limb circulation promoting device that is easy to adjust pressure according to the present invention;

[0023] Figure 2 It is a structural schematic diagram of the detection and adjustment mechanism of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the sealing chamber of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the regulating cavity of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure inside the regulating chamber of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure inside the contact head of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the flexible sleeve and the supporting ribs of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the cross section of the detection ring of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the detection ring and the touch soft ring of the present invention.

[0031] Reference numerals:

[0032] 100. Control host; 110. Hose;

[0033] 200, contact head;

[0034] 300, detection and adjustment mechanism; 310, negative pressure pump; 320, adjustment component; 321, sealing chamber; 322, driving rod; 323, rotating plate; 324, speed sensor; 325, controller; 326, adjustment chamber; 327, motor; 328, vent pipe; 329, switching shell; 3210, connecting hole; 3211, switching hole; 330, contact component; 331, flexible sleeve; 332, detection ring; 333, touch soft ring; 334, supporting rib; 335, sealing tube; 336, piston rod; 337, pressure sensor; 338, limit ring; 339, piston plate; 3310, limit plate; 3311, sealing groove; 3312, sealing ring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0040] Combine the following Figure 1-Figure 9 The flexible pneumatic limb circulation promoting device of the present invention which is easy to adjust the pressure is described.

[0041] Embodiment 1:

[0042] In one embodiment, a flexible pneumatic limb circulation promoting device that facilitates pressure adjustment comprises:

[0043] A control host 100, wherein a hose 110 is disposed on one side of the control host 100, and a contact head 200 is fixedly connected to the other end of the hose 110;

[0044] A detection and adjustment mechanism 300, wherein the detection and adjustment mechanism 300 comprises a negative pressure pump 310, an adjustment component 320 is disposed between the negative pressure pump 310 and the contact head 200, and a contact component 330 is disposed on the outer side of the contact head 200;

[0045] Among them, the adjustment component 320 includes a sealed chamber 321, a speed sensor 324 and an adjustment chamber 326, and the sealed chamber 321 and the adjustment chamber 326 are both fixedly installed on the surface of the hose 110, the speed sensor 324 is fixedly installed on one side of the sealed chamber 321, and the adjustment chamber 326 is fixedly installed on one side of the negative pressure pump 310.

[0046] It should be noted that, in this embodiment, a flexible pneumatic limb circulation promoting device that is easy to adjust pressure is formed by setting the above-mentioned control host 100, contact head 200 and detection and adjustment mechanism 300. When in use, the contact head 200 is placed on the edema part of the patient, and the negative pressure pump 310 is controlled by the control host 100 to allow the contact head 200 to continuously apply negative pressure and deflate the patient's contact part, so that the circulation of the patient's lymphedema can be promoted. During circulation treatment, the sealed cavity 321 and the speed sensor 324 of the adjustment component 320 are adjusted. When the contact head 200 inhales negative pressure, the skin bulges. Through the volume of the skin bulge, the higher the degree of edema, the more obvious the skin bulge, and the more airflow passes through the speed sensor 324, thereby indirectly detecting the degree of edema, and synchronously adjusting the negative pressure strength of the negative pressure pump 310 can dynamically adjust the negative pressure strength according to the actual situation of the patient, and can achieve more accurate lymphedema treatment.

[0047] Embodiment 2:

[0048] On the basis of the above-mentioned embodiment 1, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the adjustment component 320 also includes a driving rod 322 fixedly installed inside the sealed cavity 321, and a plurality of rotating plates 323 are fixedly installed on the outer side of the driving rod 322. One end of the driving rod 322 extends out of the sealed cavity 321 and is fixedly connected to the speed sensor 324.

[0049] A switch housing 329 is rotatably mounted inside the regulating chamber 326, a switch hole 3211 and two communication holes 3210 are provided on the surface of the switch housing 329, the two communication holes 3210 are located on the same horizontal axis, and a venting pipe 328 is fixedly mounted on the surface of the regulating chamber 326. A motor 327 is fixedly mounted on the surface of the regulating chamber 326, and the output end of the motor 327 extends into the inside of the regulating chamber 326 and is fixedly connected to the surface of the switch housing 329.

[0050] The regulating chamber 326 and the switching shell 329 are both configured to be spherical in shape, and a controller 325 is fixedly installed on one side of the sealing chamber 321 .

[0051] It should be noted that, in the present embodiment, through the arrangement of the above structure, during specific use, when the contact head 200 and the contact assembly 330 seal the edema part, the speed sensor 324 is started, and the negative pressure pump 310 works to suck part of the patient's skin into the contact head 200. At the same time, the sucked gas is rotated through the multiple rotating plates 323. The degree of rotation of the rotating plates 323 reflects the flow rate of the extracted gas and the volume change of the skin bulge. When the edema is severe, the skin bulges greatly, and the internal volume of the contact head 200 increases rapidly. The rotation speed of the rotating plate 323 on the driving rod 322 will increase. When the edema is mild and the skin bulge is small, the internal volume of the contact head 200 changes less, and the rotation speed of the rotating plate 323 is relatively slow, thereby synchronously adjusting the negative pressure intensity of the negative pressure pump 310 to adapt to different lymphedema treatment needs.

[0052] At the same time, when the switching hole 3211 is located inside the switching shell 329, the two connecting holes 3210 are connected, and the negative pressure pump 310 can apply negative pressure to the contact head 200. When the switching hole 3211 is located on one side of the deflation pipe 328, the contact head 200 is connected to the outside for deflation. The negative pressure time on the edema part can be adjusted by adjusting the switching shell 329. If the rotation speed is fast, indicating that the edema is severe, the controller 325 drives the rotation of the switching shell 329 through the motor 327, adjusts the positions of the switching hole 3211 and the connecting hole 3210, and prolongs the inhalation time. If the rotation speed is slow, indicating that the edema is mild, the controller 325 shortens the inhalation time through the same adjustment method to prevent overtreatment.

[0053] Embodiment 3:

[0054] Based on the above embodiments, Figure 2 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, the contact assembly 330 includes a flexible sleeve 331 fixedly mounted on one side of the contact head 200 , a detection ring 332 is fixedly mounted on the outer side of the flexible sleeve 331 , and a touch soft ring 333 is provided on the surface of the detection ring 332 .

[0055] A plurality of supporting ribs 334 are fixedly installed inside the flexible sleeve 331 , and the plurality of supporting ribs 334 are arranged in a mesh shape.

[0056] The detection ring 332 is an internal hollow structure. A pressure sensor 337 is disposed inside the detection ring 332 . A plurality of piston rods 336 are disposed at the bottom of the pressure sensor 337 , and the other ends of the plurality of piston rods 336 extend out of the detection ring 332 .

[0057] A plurality of sealing tubes 335 are fixedly installed at the bottom of the pressure sensor 337, and a plurality of piston rods 336 are slidably installed inside the sealing tube 335. A limiting ring 338 is fixedly installed inside the sealing tube 335, and a piston plate 339 is arranged on the top of the limiting ring 338. The piston plate 339 is slidably connected to the inner wall of the sealing tube 335.

[0058] The inner wall of the touch soft ring 333 is threadedly connected to the surface of the detection ring 332, and a limit plate 3310 is fixedly installed on the outer side of the detection ring 332, and a sealing groove 3311 is opened at the bottom of the limit plate 3310, and a sealing ring 3312 is fixedly installed on the top of the touch soft ring 333, and the sealing ring 3312 is sealed and clamped with the sealing groove 3311.

[0059] It should be noted that, in the present embodiment, the pressure sensor 337 is a thin film type pressure sensor 337, and the flexible sleeve 331 can adapt to the surfaces of limbs of different shapes due to its soft material. The multiple supporting ribs 334 arranged inside are evenly distributed in a mesh form to provide support for the flexible sleeve 331 to avoid deformation of the flexible sleeve 331 due to negative pressure. When the flexible sleeve 331 fits the patient's skin, the skin in the edema area contacts multiple piston rods 336 simultaneously, and the pressure is transmitted to the pressure sensor 337 inside the detection ring 332 through the piston rods 336, and the signal is transmitted to the controller 325. When all the piston rods 336 transmit pressure signals, the surface flexible sleeve 331 is in sealed contact with the patient, and the pressure sensor 337 and the controller 325 are connected. The multiple pressure feedbacks inside the detection ring 332 are sufficient to determine whether the current contact head 200 is in complete sealed contact with the edema area. If some pressure point feedbacks are missing, the surface operator needs to adjust the position of the flexible sleeve 331 or increase the downward pressure strength. When it is completely sealed, the speed sensor 324 can be started, and when the flexible sleeve 331 is close to the patient's skin, the touch soft ring 333 is in contact with the patient. After use, the touch soft ring 333 can be quickly disassembled and replaced by threaded separation. The sealing ring 3312 on the top of the touch soft ring 333 is embedded in the sealing groove 3311 at the bottom of the limit plate 3310, which can effectively prevent air leakage when connected to the detection ring 332 and ensure the stability of negative pressure adsorption.

[0060] The working principle and use process of the flexible pneumatic limb circulation promoting device that is easy to adjust pressure of the present invention include:

[0061] Step 1: Place the contact head 200 at the edema site of the patient, and control the negative pressure pump 310 through the control host 100 to allow the contact head 200 to continuously apply negative pressure and deflate the contact site of the patient, thereby promoting circulation at the lymphedema site of the patient;

[0062] Step 2: During the circulation treatment, the speed sensor 324 is started, and the negative pressure pump 310 works to suck part of the patient's skin into the contact head 200. At the same time, the sucked gas is rotated through the plurality of rotating plates 323. The degree of rotation of the rotating plates 323 reflects the flow rate of the extracted gas and the volume change of the skin bulge;

[0063] Step 3: When the edema is severe, the skin bulges greatly, the internal volume of the contact head 200 increases rapidly, and the rotation speed of the rotating piece 323 on the driving rod 322 increases. When the edema is mild and the skin bulges less, the internal volume of the contact head 200 changes less, and the rotation speed of the rotating piece 323 is relatively slow, thereby synchronously adjusting the negative pressure intensity of the negative pressure pump 310 to adapt to different lymphedema treatment needs;

[0064] Wherein: when the switching hole 3211 is located inside the switching shell 329, the two connecting holes 3210 are connected, and the negative pressure pump 310 can apply negative pressure to the contact head 200, and when the switching hole 3211 is located on one side of the deflation pipe 328, the contact head 200 is connected to the outside for deflation. The negative pressure time on the edema part can be adjusted by adjusting the switching shell 329. If the rotation speed is fast, it indicates that the edema is serious. The controller 325 drives the rotation of the switching shell 329 through the motor 327 to adjust the positions of the switching hole 3211 and the connecting hole 3210 to extend the inspiration time. If the rotation speed is slow, it indicates that the edema is mild. The controller 325 shortens the inspiration time through the same adjustment method to prevent overtreatment. When the flexible sleeve 331 fits the patient's skin, The skin in the edema area contacts multiple piston rods 336 synchronously, and the pressure is transmitted to the pressure sensor 337 inside the detection ring 332 through the piston rods 336, and the signal is transmitted to the controller 325. When all the piston rods 336 transmit pressure signals, the surface flexible sleeve 331 is in sealed contact with the patient. Through the multiple pressure feedbacks inside the detection ring 332, it can be determined whether the current contact head 200 is in complete sealed contact with the edema area. If some pressure point feedbacks are missing, the surface operator needs to adjust the position of the flexible sleeve 331 or increase the downward pressure. When the flexible sleeve 331 is close to the patient's skin, the touch soft ring 333 is in contact with the patient. After use, the touch soft ring 333 can be quickly disassembled and replaced by threaded separation.

[0065] It should be noted that the control host, speed sensor, pressure sensor, motor and controller in the above description are all devices with relatively mature application of existing technologies. The specific models can be selected according to actual needs. At the same time, the control host, speed sensor, pressure sensor, motor and controller can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A flexible pneumatic limb circulation promoting device that is easy to adjust pressure, characterized in that: include: A control host (100), wherein a hose (110) is provided on one side of the control host (100), and a contact head (200) is fixedly connected to the other end of the hose (110); A detection and adjustment mechanism (300), the detection and adjustment mechanism (300) comprising a negative pressure pump (310), an adjustment component (320) being arranged between the negative pressure pump (310) and the contact head (200), and a contact component (330) being arranged outside the contact head (200); The regulating assembly (320) comprises a sealed chamber (321), a rotation speed sensor (324) and a regulating chamber (326); the sealed chamber (321) and the regulating chamber (326) are both fixedly mounted on the surface of the hose (110), the rotation speed sensor (324) is fixedly mounted on one side of the sealed chamber (321), and the regulating chamber (326) is fixedly mounted on one side of the negative pressure pump (310).

2. A flexible pneumatic limb circulation promoting device that is easy to adjust pressure as claimed in claim 1, characterized in that: The adjustment assembly (320) further comprises a driving rod (322) fixedly mounted inside the sealed cavity (321), a plurality of rotating plates (323) being fixedly mounted on the outer side of the driving rod (322), and one end of the driving rod (322) extending out of the sealed cavity (321) and fixedly connected to a rotation speed sensor (324).

3. A flexible pneumatic limb circulation promoting device that is easy to adjust pressure as claimed in claim 1, characterized in that: A switching shell (329) is rotatably mounted inside the regulating chamber (326); a switching hole (3211) and two connecting holes (3210) are provided on the surface of the switching shell (329); the two connecting holes (3210) are located on the same horizontal axis; and a venting pipe (328) is fixedly mounted on the surface of the regulating chamber (326).

4. A flexible pneumatic limb circulation promoting device with easy pressure adjustment as claimed in claim 1, characterized in that: A motor (327) is fixedly mounted on the surface of the regulating cavity (326); an output end of the motor (327) extends into the interior of the regulating cavity (326) and is fixedly connected to the surface of the switching shell (329).

5. A flexible pneumatic limb circulation promoting device with easy pressure adjustment as claimed in claim 1, characterized in that: The regulating chamber (326) and the switching shell (329) are both spherical in shape, and a controller (325) is fixedly mounted on one side of the sealing chamber (321).

6. A flexible pneumatic limb circulation promoting device with easy pressure adjustment as claimed in claim 1, characterized in that: The contact assembly (330) comprises a flexible sleeve (331) fixedly mounted on one side of the contact head (200), a detection ring (332) fixedly mounted on the outer side of the flexible sleeve (331), and a touch soft ring (333) is arranged on the surface of the detection ring (332).

7. A flexible pneumatic limb circulation promoting device with easy pressure adjustment as claimed in claim 6, characterized in that: A plurality of supporting ribs (334) are fixedly installed inside the flexible sleeve (331), and the plurality of supporting ribs (334) are arranged in a mesh shape.

8. A flexible pneumatic limb circulation promoting device that is easy to adjust pressure as claimed in claim 7, characterized in that: The detection ring (332) is an internal hollow structure, a pressure sensor (337) is arranged inside the detection ring (332), a plurality of piston rods (336) are arranged at the bottom of the pressure sensor (337), and the other ends of the plurality of piston rods (336) extend out of the detection ring (332).

9. A flexible pneumatic limb circulation promoting device with easy pressure adjustment as claimed in claim 8, characterized in that: A plurality of sealing tubes (335) are fixedly installed at the bottom of the pressure sensor (337), and a plurality of piston rods (336) are slidably installed inside the sealing tube (335). A limiting ring (338) is fixedly installed inside the sealing tube (335), and a piston plate (339) is arranged on the top of the limiting ring (338). The piston plate (339) is slidably connected to the inner wall of the sealing tube (335).

10. A flexible pneumatic limb circulation promoting device with easy pressure adjustment as claimed in claim 6, characterized in that: The inner wall of the touch soft ring (333) is threadedly connected to the surface of the detection ring (332); a limit plate (3310) is fixedly installed on the outer side of the detection ring (332); a sealing groove (3311) is provided at the bottom of the limit plate (3310); a sealing ring (3312) is fixedly installed on the top of the touch soft ring (333); and the sealing ring (3312) is sealed and clamped with the sealing groove (3311).

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