A variable temperature pressurized glove

Abstract

The present invention relates to a variable temperature pressurized glove, which at least comprises a wearable body (1) that can be worn on the hand of a stroke patient, wherein a pressurizing component (2) that can apply intermittent squeezing force to the patient's hand to relieve limb edema and a temperature control component (3) that can adjustably provide periodic temperature stimulation of alternating hot and cold to the hand are detachably installed in the wearable body (1), wherein the pressurizing component (2) at least comprises a gas pipeline (21) that can directionally deliver pressurized gas and an annular pressurizing channel (22) that can surround the patient's fingers or palm and intermittently apply squeezing force to the hand, wherein the annular pressurizing channel (22) is arranged at intervals along the axial direction of the gas pipeline (21), and the annular pressurizing channel (22) is connected to the gas pipeline (21) in a manner that pressurized gas is delivered directionally to the inside of the gas pipeline (21) so that a plurality of annular pressurizing channels (22) arranged at intervals undergo gradient expansion.

Description

Technical Field

[0001] The invention relates to the technical field of medical rehabilitation nursing equipment, and in particular to a variable temperature pressurized glove. Background Art

[0002] As the trend of aging population structure becomes more and more obvious, the diagnosis and treatment of diseases with high incidence in the elderly, such as stroke, and rehabilitation training in the later stages of the disease have received attention from the entire industry. In addition to motor nerve damage, stroke patients are often accompanied by sensory nerve damage and reduced somatosensory function. Studies have shown that somatosensory and motor function are closely related. For stroke patients, somatosensory damage to the arms and hands may hinder the recovery of motor nerves, while patients with more complete hand sensory function can obtain better motor nerve rehabilitation treatment effects, and sensory stimulation of patients can enhance their motor function. In addition, studies have found that motor rehabilitation can also improve sensory recovery in chronic stroke patients.

[0003] Rehabilitation therapy can achieve the best rehabilitation effect, the greatest degree of functional recovery, and the most effective prevention of complications if it is started within 14 days after the occurrence of stroke. Hot and cold stimulation therapy is a common rehabilitation method for stroke patients. This therapy uses alternating cold and hot cyclic stimulation to make blood vessels contract alternately, improve capillary permeability, and effectively promote the absorption of exudate, reduce muscle tension and muscle contraction, relieve muscle spasms, and promote the recovery of motor neurons. At the same time, hot and cold stimulation can also activate the hot and cold receptors on the surface of the skin, causing them to produce sensory signals, thereby stimulating the sensory nerve channels and promoting the recovery of sensory nerves. Centripetal compression wrapping has a significant effect on reducing or eliminating edema in hemiplegic limbs after stroke. The injured patient's limbs suddenly swell and soon produce obvious movement restrictions. The edema is obvious in the fingers, followed by the metacarpophalangeal joints and causes the skin wrinkles to disappear, and then the tendons on the hand limbs cannot be seen, resulting in limited limb joint mobility in patients. The centripetal pressure wrapping method can reduce limb edema, inhibit inflammatory exudation, and quickly improve the circulation in the limbs during the operation, promoting the return of tissue fluid through lymphatic fluid, thereby achieving the purpose of reducing edema.

[0004] Chinese patent CN110731879A discloses a hand function rehabilitation robot for stroke patients and its use method. The rehabilitation robot includes a cooling and heating module, a sports training module, a water tank, a sensor unit and a control box. The cooling and heating module consists of a thermally conductive glove, a cooling sheet fixing film, a semiconductor cooling sheet, a refrigerator, a flexible water pipe and a protective jacket. The sports training module includes an adjustment slider, a fixing strap and a shape memory alloy sheet; the sensor unit includes a temperature sensor subunit, a tilt sensor subunit, a fingertip pressure sensor subunit, a muscle tension detection subunit, and an electromyography detection subunit. The patient's spastic state is evaluated by multi-sensor information fusion and training parameters are given. The robot of this patent has the advantages of precise control and compact structure. It can realize cold and heat therapy and sports training at the same time, improve rehabilitation efficiency, and solve the problems of the traditional temperature stimulation therapy based on hydrotherapy, such as large system, inconvenience in use, and slow temperature response. However, this patent can only improve the limb rehabilitation training effect of stroke patients through alternating cold and hot stimulation, and cannot meet the needs of stimulating limbs to complete physical squeezing care, so that the existing nursing device cannot simulate centripetal rope winding to promote limb rehabilitation.

[0005] Therefore, in view of the defects of the prior art, the present application provides a nursing device that can utilize alternating temperature stimulation while simulating a rope wrapped around a finger or palm to help the patient eliminate or reduce limb edema.

[0006] In addition, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the inventor studied a large number of documents and patents when making the present invention, but due to space limitations, not all details and contents are listed in detail. However, this does not mean that the present invention does not have the characteristics of these prior arts. On the contrary, the present invention already has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background technology. Summary of the invention

[0007] In view of the deficiencies of the prior art, the technical solution of the present invention provides a wearable body which at least includes a wearable body that can be worn on the hand of a stroke patient, wherein a pressurizing component that can apply intermittent squeezing force to the patient's hand to relieve limb edema and a temperature control component that can adjustably provide periodic temperature stimulation of alternating hot and cold to the hand are detachably installed in the wearable body, wherein the pressurizing component at least includes a gas pipeline that can directionally deliver pressurized gas and an annular pressurizing channel that can surround the patient's fingers or palm and intermittently apply squeezing force to the hand, wherein the annular pressurizing channel is arranged at intervals along the axial direction of the gas pipeline, and the annular pressurizing channel is connected to the gas pipeline in a manner that pressurized gas is directionally delivered to the inside of the gas pipeline so that a plurality of annular pressurizing channels arranged at intervals undergo gradient expansion. Its advantage is that, through the structural setting of the gas pipeline and the annular pressurization channel, it can help stroke patients eliminate or reduce swelling of the hands and limbs during rehabilitation care, and the structural design of the annular pressurization channel can effectively apply gradient pressure to the patient's hand, which can directly replace the manual operation requirements of the centripetal rope winding care in the existing rehabilitation training, greatly reducing the workload of medical staff, and at the same time can provide timely and periodic rehabilitation care for patients.

[0008] According to a preferred embodiment, the gas pipeline is formed by splicing a plurality of pipelines with different inner diameters, and the pipelines at least include an upstream pipeline and a downstream pipeline with gradually decreasing inner diameters, wherein the outflow end of the upstream pipeline is sleeved on the inflow end of the downstream pipeline, and a sealing ring is also provided at the connection between the upstream pipeline and the downstream pipeline. The advantage is that by setting the pipeline structure as a tubular structure with gradually decreasing inner diameters, a gradient pressure effect can be provided on the patient's hand, thereby effectively reproducing the squeezing effect that can be achieved by centripetal rope winding, and effectively achieving the relief or elimination of limb edema.

[0009] According to a preferred embodiment, a connecting hole capable of communicating with the annular pressurized channel is also provided on the pipe wall of the pipeline. In the initial stage of injecting pressurized gas into the pipeline, the upstream pipeline limits the size of the connecting hole to match its own pipe diameter in such a way that the flow rate through the connecting hole into the annular pressurized channel is greater than the flow rate into the downstream pipeline. The advantage is that by setting the connecting hole to have a cross section larger than the cross section of the downstream pipeline, the pressurized gas flowing into the upstream pipeline is preferentially injected into the annular pressurized channel connected thereto, thereby forming a pressure change with a gradient.

[0010] According to a preferred embodiment, the annular pressurized channel includes at least a flexible pipeline that can expand when filled with pressurized gas and exert a squeezing force on the limb it surrounds, and a limiting template that can limit the expansion direction of the flexible pipeline. The limiting module can constrain the divergent expansion of the flexible pipeline to a directional expansion, so that the interior of the flexible pipeline is gradually filled and exerts a changing squeezing pressure on the surface of the limb.

[0011] According to a preferred embodiment, the wearable body includes at least a finger sleeve and a palm sleeve, wherein the finger sleeve includes at least a finger sleeve inner padding layer, a finger sleeve outer protective layer and a finger sleeve filling layer arranged between the finger sleeve inner padding layer and the finger sleeve outer protective layer; the palm sleeve includes at least a palm sleeve inner padding layer, a palm sleeve outer protective layer and a palm sleeve filling layer.

[0012] According to a preferred embodiment, the finger sleeve filling layer and the palm sleeve filling layer are both provided with the pressurizing component and the temperature control component capable of transmitting pressure and temperature to the hand limbs, wherein the pressurizing component is arranged in the groove cavity of the finger sleeve filling layer and the palm sleeve filling layer facing the finger sleeve inner padding layer and the palm sleeve inner padding layer.

[0013] According to a preferred embodiment, the temperature control component is embedded in the layer structure of the finger sleeve filling layer and the palm sleeve filling layer facing the finger sleeve outer protective layer and the palm sleeve outer protective layer.

[0014] According to a preferred embodiment, the temperature control component at least includes a semiconductor refrigeration unit, a heat transfer module, a flexible water pipe and a fixed film, wherein the semiconductor refrigeration units are distributed in the finger sleeve filling layer and the palm sleeve filling layer in an intermittent arrangement; a heat transfer module capable of assisting the semiconductor refrigeration unit in completing heat transfer is installed on the semiconductor refrigeration unit, and the heat transfer modules are interconnected through the flexible water pipe.

[0015] According to a preferred embodiment, the fixing film is attached to the surface of the finger sleeve filling layer and the palm sleeve filling layer to define the installation positions of the semiconductor refrigeration unit, the heat transfer module and the flexible water pipe.

[0016] According to a preferred embodiment, the temperature control component further includes a water supply component, and the water pipe of the water supply component has a plurality of branch pipes that can simultaneously connect to the flexible water pipes corresponding to different areas of the hand and arranged in parallel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred embodiment of a variable temperature pressurized glove of the present invention;

[0018] Figure 2It is a cross-sectional view of the relative position between the pressurizing component and the temperature control component of a preferred embodiment of a variable temperature pressurizing glove of the present invention, which is transverse to the length direction of the finger;

[0019] Figure 3 It is a detailed structural schematic diagram of the connection part of the upstream pipeline and the downstream pipeline of the pressurizing assembly of the variable temperature pressurizing glove of the present invention;

[0020] Figure 4 It is a structural schematic diagram of a temperature control component of a variable temperature pressurized glove of the present invention;

[0021] Figure 5 It is a structural schematic diagram of an annular pressurizing channel of a variable temperature pressurizing glove of the present invention;

[0022] Figure 6 It is a cross-sectional schematic diagram of a finger of a variable temperature pressurizing glove of the present invention when being compressed.

[0023] Reference numerals list

[0024] 1: wearable body; 2: pressurizing component; 3: temperature control component; 11: finger sleeve; 12: palm sleeve; 111: inner cushion layer of finger sleeve; 112: outer protective layer of finger sleeve; 113: filling layer of finger sleeve; 121: inner cushion layer of palm sleeve; 122: outer protective layer of palm sleeve; 123: filling layer of palm sleeve; 21: gas pipeline; 22: annular pressurizing channel; 23: air pressure regulating unit; 211: sealing ring; 212: pipeline; 213: connecting hole; 212a: upstream pipeline; 212b: downstream pipeline; 221: flexible pipeline; 222: limiting module; 31: semiconductor refrigeration unit; 32: heat transfer module; 33: flexible water pipe; 34: fixed film; 35: water supply component; 351: container; 352: water drive pump; 353: water pipe. DETAILED DESCRIPTION

[0025] The following is a detailed description with reference to the accompanying drawings.

[0026] Centripetal pressure wrapping of the patient's limbs is an effective rehabilitation nursing method for treating limb swelling. Centripetal pressure wrapping is to accelerate the return of blood and lymph through centripetal compression, thereby improving the rate and effect of blood circulation and reducing edema. Specifically, centripetal pressure wrapping care includes finger wrapping and palm wrapping. Finger wrapping refers to making a small ring with a rope at the nail and then spirally wrapping. During the operation, the distal end of the finger is quickly and forcefully wrapped one by one to the metacarpophalangeal joint; after the wrapping is completed, the wrapped rope is quickly pulled away from the rope ring at the fingertip. Palm wrapping refers to making a ring of rope at the metacarpophalangeal joint, then wrapping from the metacarpophalangeal joint to the proximal end, and then quickly pulling away the wrapped rope. However, this nursing method currently requires manual operation, and medical staff or family members are required to regularly and uninterruptedly wrap the patient for nursing. Due to the need for human assistance, the force applied by the wrapping operator cannot be accurately quantified and the time is uncertain, so patients cannot receive accurate and effective wrapping care. In addition, due to the immeasurability of force during manual operation, the magnitude of the pressure applied to the patient's hand each time the wrapping is actually performed cannot be accurately controlled, which can easily lead to excessive wrapping force and excessive pressure on the sensitive epidermis. Finally, due to the different distribution of arterial blood vessels in the hands and limbs, the degree of limb edema that patients often experience is not evenly distributed, so although centripetal compression wrapping can alleviate or eliminate limb edema to a certain extent, it cannot achieve differential pressure on the surfaces of different limbs.

[0027] Example 1

[0028] The present application relates to a variable temperature pressurized glove, which may include a wearing body 1, a pressurizing component 2 and a temperature control component 3.

[0029] according to Figure 1 In a specific embodiment shown, the wearable body 1 adaptively wraps the patient's hand in a manner that the size of its accommodating chamber can be adjusted, so that it can wrap the hand area from the fingers, palm to above the wrist joint. The wearable body 1 is detachably provided with a pressurizing component 2 that can apply pressure to the hand and a temperature control component 3 that changes the temperature of the environment in which the hand is located. The temperature control component 3 can adjust the temperature of the environment in which the limb is located when the pressurizing component 2 compresses the epidermis of part of the patient's hand, avoiding damage to the swollen local soft tissue of the hand due to compression, thereby reducing the local blood flow while accelerating the return of blood and lymph in the hand due to external pressure, thereby reducing inflammation and pain.

[0030] The pressure component 2 can be wrapped around the fingers and palms so that it can increase the force it applies to the hand epidermis by applying pressure. Figure 6As shown, the surrounding pressurizing component 2 provides an intermittent pressure with a directional increase and decrease in the compression area for the fingers and palms, so that the fingers and palms can drive the interstitial fluid of the blood in the fingers and palms to flow to the limb area that is not compressed under the pressure applied step by step, thereby accelerating and forcing the interstitial fluid in the edematous limbs to flow in a directional manner, avoiding the accumulation of interstitial fluid in the fingers and palms, and then reducing or eliminating the edema of the limbs of hemiplegic stroke patients. Specifically, when the gas pipeline 21 is continuously filled with pressurized gas, the annular pressurizing channel 22 sleeved on the fingertip area preferentially introduces pressurized gas from the upstream pipeline 212a of the gas pipeline 21, so that the flexible pipeline 221 constituting the annular pressurizing channel 22 expands in a directional manner under the restriction of the limiting module 222. Preferably, when the internal air pressure of the annular pressurized channel 22 located in the fingertip area approaches the internal air pressure of the upstream pipeline 212a, the downstream pipeline 212b connected to the upstream pipeline 212a guides the pressurized gas to further flow into the annular pressurized channel 22 connected to it and sleeved in the middle of the finger. The flexible pipeline 221 surrounding the middle of the finger gradually expands to the maximum volume along with the flexible pipeline 221 surrounding the fingertip, and also expands at a slower rate, so that in the process of directional expansion of the epidermis squeezing the finger, the blood and interstitial fluid in the fingertip area are gradually driven toward the metacarpophalangeal joint end. Centripetal pressurization refers to the ability to directional drive the blood in the finger from the fingertip with a larger distance from the heart to the metacarpophalangeal joint end by external force, forcing the blood and interstitial fluid to flow back to the limbs near the heart. External force squeezing that directional expands the pressure area of ​​the hand limbs can also promote muscle contraction by stimulation, restore the function of the muscle pump, thereby effectively increasing the range of motion of the joint and preventing spasms; due to the improvement of local blood flow, it is beneficial to the return of blood and lymph, and reduces edema. In the prior art, the centripetal compression winding operated manually applies a uniform pressure force to a circular cross section of the entire finger or palm, but the actual edema of the patient is regionally different, wherein the edema degree of the finger pad surface is much greater than the edema degree of the finger back, which is because the finger pad part of the finger has relatively more muscle tissue relative to the finger back, so that the finger pad area can accommodate more interstitial fluid. In addition, there are arteries in the tissue of the finger pad for blood nutrient transport, resulting in the finger pad being more prone to excessive edema. Therefore, in order to promote the reflux of blood and interstitial fluid, the finger pad area needs to be subjected to greater compression relative to the finger back, so as to promote the directional expulsion of interstitial fluid and arterial blood in its tissue. When the finger back and the finger pad are subjected to the same pressure, the pressure is too small to effectively expel the reflux of blood and interstitial fluid in the finger pad, and if the pressure is too large, it may cause damage to the epidermis of the finger back. Therefore, in order to effectively achieve the relief of limb edema, the pressurizing component 2 can provide different sizes of squeezing forces to the finger pad and the finger back and the palm and the back of the palm of the hand.

[0031] The temperature control component 3 can be laid in the wearable body 1, so that when it is necessary to perform temperature-changing rehabilitation care on the limbs of hemiplegic stroke patients, the temperature control component 3 can provide alternating cold and hot periodic stimulation to the hand through the wearable body 1, so that the blood vessels in the hand alternately dilate and contract, improve the permeability of capillaries, and effectively promote the absorption of exudate, reduce muscle tension and muscle contraction, relieve muscle spasms, and promote the rehabilitation of motor neurons. At the same time, the cold and hot stimulation can also activate the cold and hot receptors on the surface of the skin to generate sensory signals, thereby stimulating the sensory nerve channels and promoting the rehabilitation of sensory nerves. Preferably, the temperature control component 3 can work in coordination with the pressurizing component 2 or operate alone. When the pressurizing component 2 drives the blood and interstitial fluid in the hand limbs back through directional pressurization, the temperature control component 3 can synchronously reduce the epidermal temperature of the hand squeezed by the pressurizing component 2, thereby improving the anti-inflammatory and detumescence effects while effectively reducing the possibility of compression of the squeezed local soft tissue. Preferably, the temperature control component 3 can also increase the temperature of the limb surface while the pressurizing component 2 is withdrawn from squeezing the limb, so that the blood in the local artery in the limb can flow faster, thereby driving the exchange of substances in the hand tissue. Preferably, the temperature control component 3 can also change the temperature independently when the pressurizing component 2 is not working, thereby reducing the local blood flow and bleeding in the affected area of ​​the patient with hand injuries. Preferably, the temperature control component 3 and the pressurizing component 2 can work independently on the front and back of the fingers / palms. The temperature control component 3 can connect the semiconductor refrigeration units 31 of the finger pads and the back of the fingers in series through the same flexible water pipe 33, so that while cooling the finger pad area to promote swelling, the temperature of the back of the hand can be increased to avoid adverse injuries such as epidermal damage to the back of the hand under relatively large squeezing pressure.

[0032] Preferably, the wearable body 1 includes a finger sleeve 11 and a palm sleeve 12. Specifically, the multi-sized finger sleeves 11 of different sizes corresponding to the five fingers of the human body are connected to the palm sleeve 12 according to the actual arrangement order of the fingers. The finger sleeve 11 is provided with a finger accommodating cavity that matches the human finger, and the palm sleeve 12 is provided with a palm accommodating cavity that can accommodate the palm. Preferably, the finger accommodating cavity defined inside the finger sleeve 11 is a cavity with a single-side opening, and the open end of the finger accommodating cavity can be connected to the palm accommodating cavity of the palm sleeve 12, so that the two cavities are connected to each other to form a connected cavity. Figure 2 yes Figure 1The cross-sectional view of the middle finger sleeve 11 shows that the finger sleeve 11 at least includes an inner sleeve cushion layer 111, an outer sleeve protective layer 112, and a sleeve filling layer 113 disposed between the inner sleeve cushion layer 111 and the outer sleeve protective layer 112. The sleeve filling layer 113 is provided with a pressurizing component 2 and a temperature control component 3 capable of providing rehabilitation care to the fingers contained in the inner sleeve cushion layer 111. Preferably, a control module capable of selectively adjusting the pressure and / or temperature of the pressurizing component 2 and the temperature control component 3 is provided on the outer surface of the back of the hand region of the palm sleeve 12. The control module can be capable of adjusting the working states of the air pressure regulating unit 23, the semiconductor refrigeration unit 31, and the water supply component 35 according to instructions and patient needs, so as to realize the separate or coordinated work of pressurization and temperature control. Preferably, the temperature control component 3 can adjust the ambient temperature of different areas of the patient's hand according to the patient's needs. Specifically, the temperature control component 3 can heat or cool the designated area. The ambient temperature after heating can be controlled at about 40°C, and the ambient temperature after cooling can be controlled between 0-10°C. The actual perceived temperature can be adjusted by adjusting the power of the semiconductor refrigeration unit 31 and the circulating water flow rate of the water supply component 35. By limiting the heating or cooling temperature, it can promote the reduction of hand swelling and accelerate the blood circulation by stimulation, and can also effectively ensure that the hand is always in a safe temperature environment, avoiding damage to the skin and tissue of the hand caused by high or low temperature, and preventing the device from damaging the hand due to misoperation, which greatly improves the safety of the nursing operation process.

[0033] Preferably, the palm glove 12 includes a palm glove inner cushion layer 121, a palm glove outer protective layer 122, and a palm glove filling layer 123. The palm glove filling layer 123 can be used to accommodate the pressurizing component 2 and the temperature control component 3 for rehabilitation care of the palm. And the palm glove filling layer 123 is arranged between the palm glove inner cushion layer 121 and the palm glove outer protective layer 122. The finger glove inner cushion layer 111 and the palm glove inner cushion layer 121 can separate the finger glove filling layer 113 and the palm glove filling layer 123 from the skin surface to avoid direct contact and damage to the skin and hand tissue that are easily damaged in the edema state. At the same time, the palm glove outer protective layer 122 can protect the inner layer structure wrapped therein to prevent the unit structure and other inner functional elements from being exposed to the outside and easily worn. Preferably, the finger sleeve outer protective layer 112 and the palm sleeve outer protective layer 122 can also have limiting and temperature insulating effects, so as to prevent the expansion and temperature changes of the pressurizing component 2 and the temperature control component 3 from being transmitted to the outside and failing to achieve the expected care effect.

[0034] Preferably, the pressurizing component 2 is filled in the finger sleeve 11 and the palm sleeve 12, and the partial structure can be expanded directionally when the pressurized gas is filled in, thereby driving the finger sleeve inner pad 111 and the palm sleeve inner pad 121 to deform to squeeze the fingers and palms, so that the limbs of the stroke can gradually relieve or eliminate tissue swelling as the intermittent squeezing force it is subjected to. Preferably, the surface of the finger sleeve inner pad 111 and the palm sleeve inner pad 121 away from the accommodation space constructed by them is paved with a temperature control component 3 that can heat up or cool down the entire accommodation space. Preferably, the temperature control component 3 can controllably provide a continuous and periodic alternating hot and cold environment to the hand wrapped by the wearable body 1, thereby promoting the limbs of stroke patients to produce corresponding stress responses in the alternating hot and cold environment, so that the blood vessels inside the limbs can regularly and continuously change the dilation and contraction with the change of ambient temperature, thereby improving the vascular permeability of bedridden patients, avoiding edema and muscle spasms caused by lack of limb movement due to long-term bed rest or little exercise in stroke patients, and further promoting stroke patients to better restore the stress reflex of motor neurons during rehabilitation training, and can promote the circulation of blood and cell tissue fluid in the limbs, and improve the activity of the limbs.

[0035] The pressurizing component 2 at least includes a gas pipeline 21, an annular pressurizing channel 22 and an air pressure regulating unit 23. Preferably, the gas pipeline 21 is arranged on the wearable body 1 along the first direction of the palm and the fingers. Preferably, the first direction is the direction of the line from the distal end to the proximal end of the hand limb or the length direction of the finger. Preferably, the gas pipeline 21 can be spliced ​​by multiple sections of pipelines 212 with different inner diameters. Preferably, the sealing ring 211 is set between the pipelines 212 to ensure the airtightness of the connection. The diameter of a plurality of pipelines 212 that can be connected end to end to form a sealed gas channel (gas pipeline 21) gradually decreases along the axial direction of the gas channel. Figure 3 yes Figure 1Detailed schematic diagram of the connection structure of the upstream pipeline 212a and the downstream pipeline 212b of the pipeline 212 of the pressurizing component 2, the pipeline 212 is divided into the upstream pipeline 212a and the downstream pipeline 212b connected in sequence according to the flow direction and diameter size of the pressurized gas inside it, that is, the output end of the upstream pipeline 212a is sleeved on the input end of the downstream pipeline 212b, so that the flow volume of the upstream pipeline 212a entering the downstream pipeline 212b is reduced. Preferably, the pipeline 212 can be an integrated pipeline with a gradually decreasing diameter. Preferably, a connecting hole 213 that can be connected to an annular pressurizing channel 22 of different ring diameters is opened on the pipe wall of any upstream pipeline 221a and downstream pipeline 212b. Preferably, the hole cross-sectional area of ​​the connecting hole 213 is less than or equal to the pipe flow cross-sectional area of ​​the pipeline 212 in which it is located, and the hole cross-sectional area of ​​the connecting hole 213 is larger than the pipe flow cross-sectional area of ​​the next-level pipeline 212. Preferably, a button switch capable of controlling the connection between the pipeline 212 and the annular pressurizing channel 22 is also installed in the connecting hole 213. The patient can manually control the opening and closing of the connecting hole 213 according to personal needs, so that the connecting holes 213 arranged at intervals along the length direction of the finger or palm can be opened and closed according to the patient's personal perception of pressure intensity, so that the annular pressurizing channel 22 arranged at intervals can be orderly and progressively expanded from the fingertips to the metacarpophalangeal joints, thereby expelling the blood and interstitial fluid in the fingers in a directionally manner.

[0036] By providing a plurality of connecting holes 213 of orderly varying sizes and a gas pipeline 21 of gradually decreasing diameter, when the gas pressure regulating unit 23 introduces pressurized gas into the gas pipeline 21, a plurality of hierarchically arranged annular pressurizing channels 22 can orderly generate a pressure gradient distribution, thereby providing a variable pressure simulating a centripetal winding nursing effect for the fingers and palms of stroke patients. The annular pressurizing channel 22 is set to different annular surface sizes according to the different sizes of the hand cross-sections it surrounds. Preferably, when the gas filled from the most upstream pipeline 212 as the opening end of the gas channel can flow directionally to the pipeline 212 with a smaller flux, it is preferentially input into the annular pressurizing channel 22 connected to the section of pipeline 212.

[0037] Preferably, the annular pressurized channel 22 is interconnected with the gas pipeline 21. Further preferably, the annular surface of a plurality of annular pressurized channels 22 evenly spaced from each other may be perpendicular to the axis of the gas pipeline 21. The distribution of the annular pressurized channels 22 is arranged in a manner corresponding to the splicing assembly structure of the pipelines 212 of the gas pipeline 21, that is, at least one annular pressurized channel 22 is connected to any single pipeline 212, and the size of the connecting hole 213 between the upstream pipeline 212a and the annular pressurized channel 22 is less than or equal to the inner diameter size of the upstream pipeline 212a itself, and is larger than the inner diameter size of the downstream pipeline 212b installed at the downstream end of the pipeline 212 and located downstream of the gas flow direction, so that the annular pressurized channel 22 connected to the upstream pipeline 212a is Together with the downstream pipeline 212b located downstream of the upstream pipeline 212a, a parallel passage with different conductance is formed, so that the pressurized gas flowing into the upstream pipeline 212a from the pipeline 212 at a more upstream position can flow into the annular pressurization channel 22 with a larger conductance first, and the annular pressurization channel 22 expands to a certain extent under the filling of pressurized gas, exerting a certain squeezing force on the hand limbs, and then further flows into the downstream pipeline 212b and the annular pressurization channel 22 of the next level after all parallel passages reach the same pressure environment. Preferably, the echelon-type expansion means that the multiple annular pressurization channels 22 surrounding the same finger can expand continuously along the length direction of the finger, so that the fingertip begins to expand with a time sequence and time difference, so that the annular pressurization channel 22 connected to the upstream pipeline 212a can be one step ahead of the annular pressurization channel connected to the downstream pipeline 212b and complete the inflation expansion process, so that the blood and interstitial fluid in the finger can only be driven to one side in a directional manner.

[0038] Preferably, the same pressure environment means that the pressurized gas flowing into the upstream pipeline 212a is subjected to equal flow pressure when further flowing into the annular pressurized channel 22 and the downstream pipeline 212b, so that the pressurized gas tends to flow into the next-level downstream pipeline 212b and inflate the other annular pressurized channel 22 connected to the downstream pipeline 212b.

[0039] Preferably, since the minimum through hole cross-sectional area of ​​the communication structure between the upstream pipeline 212a and the annular pressurized channel 22 is larger than the port cross-sectional area of ​​the downstream pipeline 212b connected thereto, when the upstream pipeline 212a is continuously filled with pressurized gas, the pressurized gas in the upstream pipeline 212a may flow into the annular pressurized channel 22 directly connected thereto to a limited extent, so as to inflate and expand the annular pressurized channel 22 to a certain volume. When the annular pressurized channel 22 expands to the point where the contraction force caused by its own material is equal to the expansion force of the pressurized gas, the upstream pipeline 212a no longer fills more pressurized gas into the annular pressurized channel 22 directly connected thereto, but instead delivers pressurized gas to the downstream pipeline 212b connected thereto, so that the annular pressurized channel 22 directly connected to the downstream pipeline 212b also expands in volume when the pressurized gas filled therein increases until its own contraction force and the expansion force provided by the pressurized gas inside it are equal. After the downstream pipeline 212b completes the inflation of the annular pressurization channel 22 connected to it, it will further promote the inflation of the annular pressurization channel 22 connected to the next-level pipeline 212. Preferably, the multiple annular pressurization channels 22 evenly arranged along the length direction of the gas pipeline 21 are inflated in an orderly manner according to the flow direction of the pressurized gas in the gas pipeline 21, so as to exert a compressive force on the hand and limbs of the stroke patient in a certain direction, and after the inflation is completed, the pressure is released by releasing air from the air inlet end, so that the limbs gradually relieve or eliminate tissue swelling under the action of intermittent squeezing force.

[0040] Preferably, the air pressure regulating unit 23 is sealed and connected to the open end of the gas pipeline 21 through a ventilation pipe, so that the air pressure regulating unit 23 can adjustably input pressurized gas into the gas pipeline 21 or discharge the gas in the pressurized component 2. The air pressure regulating unit 23 can adopt a conventional micro-inflatable module, and the inflatable module is provided with a switch valve capable of releasing the gas in the chamber of the pressurized component 2, so that the switch valve is opened to discharge the gas when the pressure needs to be released. Preferably, the air pressure regulating unit 23 can selectively fill the finger sleeve filling layer 113 or the palm sleeve filling layer 123 with pressurized gas. Preferably, the air pressure regulating unit 23 is connected to the end of the gas pipeline 21 located at the distal end of the finger, so as to accurately simulate the nursing effect of the concentric winding of the rope body on the limb. Preferably, the air pressure regulating unit 23 is also directly connected to the gas pipeline 21 located in the palm area through the ventilation pipe, so that the air pressure regulating unit 23 can complete the inflation operation of the annular pressurized channel 22 surrounding the palm area without inflating the gas pipeline 21 in the finger area.

[0041] like Figure 4As shown, the temperature control component 3 at least includes a semiconductor refrigeration unit 31, a heat transfer module 32, a flexible water pipe 33, a fixed film 34 and a water supply component 35. The fixed film 34 is arranged on the surface of the finger sleeve filling layer 113 and the palm sleeve filling layer 123 away from the finger sleeve inner padding layer 111 and the palm sleeve inner padding layer 121. A groove cavity capable of accommodating the semiconductor refrigeration unit 31, the heat transfer module 32 and the flexible water pipe 33 is also provided on the surface of the finger sleeve filling layer 113 and the palm sleeve filling layer 123 away from the finger sleeve inner padding layer 111 and the palm sleeve inner padding layer 121. Preferably, the temperature control component 3 can transmit the alternating hot and cold ambient temperature to the patient's hand through the finger sleeve inner padding layer 111, the palm sleeve inner padding layer 121, the finger sleeve filling layer 113, the palm sleeve filling layer 123 and the pressurizing component 2, thereby realizing the cooling or heating operation on the hand surface. Preferably, the finger sleeve filling layer 113 and the palm sleeve filling layer 123 are provided with evenly spaced mounting grooves, so that the semiconductor refrigeration unit 31, the heat transfer module 32 and the flexible water pipe 33 can be fixed in the inner cushion layer.

[0042] Preferably, the semiconductor refrigeration units 31 located in the same finger, palm or back of hand area are arranged in series. Specifically, the bottom of the installation groove opened in the finger sleeve filling layer 113 is adhered with a semiconductor refrigeration unit 31 that can transfer temperature to the finger surface through the finger sleeve filling layer 113, the pressurizing component 2 and the inner cushion layer 111 of the finger sleeve. Preferably, the semiconductor refrigeration units 31 are connected to the power supply through a wire. Preferably, the refrigeration unit adopts a semiconductor refrigeration plate that can transfer heat when powered on, which can adjust the direction of heat transfer by changing the positive and negative poles of its own power connection, so that the two opposite surfaces of the refrigeration plate form interchangeable cold and hot ends, thereby producing different cold and hot effects on the side facing the limb. The surface of the semiconductor refrigeration unit 31 away from the finger sleeve filling layer 113 is also fixedly provided with a heat transfer module 32. Preferably, the semiconductor refrigeration unit 31 located on the back of the finger and the back of the hand can synchronously adopt different working modes relative to the semiconductor refrigeration unit 31 on the finger pad and the palm, so that the finger pad and the palm are cooled while the epidermal temperature of the finger back and the back of the hand is increased. Preferably, in the above working state, the water flow of the flexible water pipe 33 flows through the finger pad area and then flows through the finger back area, so that the flowing water transfers the heat to the finger back area after receiving the heat released by the semiconductor refrigeration unit 31 in the finger pad area, so that the semiconductor refrigeration unit 31 in this area absorbs it. Preferably, the heat transfer module 32 is a directional metal sheet with a liquid directional flow chamber inside, and through holes communicating with the internal chamber are opened on the two side end faces of the upstream and downstream of the liquid flow direction. Preferably, several adjacent heat transfer modules 32 located in the same finger, palm or back area are connected by a flexible water pipe 33, and the terminals of the flexible water pipe 33 are connected to the water supply assembly 35, so that the water flowing into the flexible water pipe 33 passes through the heat transfer modules 32 connected in series and returns to the water supply assembly 35 after completing the heat transfer. Preferably, the fixed film 34 is laid on the surface of the finger sleeve filling layer 113 and the palm sleeve filling layer 123, so as to fix the semiconductor refrigeration unit 31, the heat transfer module 32, and the flexible water pipe 33 inside the finger sleeve filling layer 113 and the palm sleeve filling layer 123. Preferably, the flexible water pipe 33 is respectively connected to the heat transfer modules 32 located on the surface of the five fingers, the palm and the back of the hand, so as to effectively improve the efficiency of heat transfer and avoid that when only a single flexible water pipe 33 is used for the hand limb, the water flowing through the heat transfer module 32 at the most downstream cannot effectively absorb heat or release heat. Preferably, the water supply component 35 includes a container 351, a water pump 352 and a water pipe 353. The container 351 is connected to multiple flexible water pipes 33 in parallel through a water pipe 353 with a parallel branch to form a complete circuit. The water in the container 351 flows in a directional manner under the action of the water pump 352.

[0043] Example 2

[0044] This embodiment is a further improvement on Embodiment 1, and the repeated contents will not be repeated here.

[0045] Preferably, the ventilation pipeline in the pressurizing component 2 can also directly adopt a spiral integrated pipeline made of elastic material. The spiral pipeline is embedded in the finger sleeve filling layer 113 and the palm sleeve filling layer 123 in a manner of being wrapped around the finger or palm. Preferably, the groove cavity opened in the finger sleeve filling layer 113 and the palm sleeve filling layer 123 for accommodating the spiral pipeline is also provided with a volume limiting plate surface, so that the spiral pipeline can expand directionally when inflated, so that the expansion force acts directionally on the skin surface, so that the hand limbs can be subjected to sufficient squeezing force. Preferably, when the pressurizing component 2 adopts a combined pipeline constructed by the gas pipeline 21 and the annular pressurizing channel 22, the gas pipeline 21 can adopt a rigid pipeline with a certain hardness, and the annular pressurizing channel 22 can adopt a directional expansion pipeline formed by splicing part of a flexible and retractable material and a hard material. Figure 5 is a cross-sectional view of a single limiting module 222, Figure 6 2 is a schematic diagram of a plurality of limiting modules 222 being sleeved on a finger. The annular pressurized channel 22 may also use a flexible tube 221 and a limiting module 222 sleeved outside the flexible tube 221 and capable of limiting the directional expansion of the flexible tube 221. Preferably, the limiting module 222 may be sleeved on the flexible tube 221 in a non-fully wrapped manner, so that the flexible tube 221 only expands in volume along the opening direction of the limiting module 222 when inflated, thereby compressing the skin surface area opposite to the opening of the limiting module 222, so that in the intermittent expansion and contraction process of the flexible tube 221, the intermittent squeezing force provided by it is utilized to complete the relief or elimination of tissue swelling. Preferably, the size of the gap that allows the flexible pipe 221 to expand and protrude outside the limited space is adjusted according to the different positions of the hand surrounded by the flexible pipe 221, so that the size of the gap facing the finger pad area of ​​the hand is smaller than the size of the gap in the finger back area, so that the finger pad can be subjected to a more concentrated, stronger, and better squeezing force than the pressure on the finger back area under the same pressure environment. Preferably, the gap corresponding to the finger back is relatively large, so that more of the tube body of the flexible pipe 221 can protrude outside the limited space, so that the back of the hand is subjected to a wider pressure area, the back of the hand is subjected to relatively less pressure, and the back of the hand is prevented from being compressed and damaged.

[0046] Preferably, the gas pipeline 21 is composed of a plurality of assembled and spliced ​​pipelines 212. Preferably, the size of each level of pipeline 212 is gradually reduced, so that the pressurized gas that is much larger than the flow rate of the downstream pipeline 212b is preferably filled into the annular pressurization channel 22 connected to the upper upstream pipeline 212a. When the pressure of the gas in the annular pressurization channel 22 is the same as the pressure of the gas filled into the pipeline 212 of the next level, the annular pressurization channel 22 connected to the upstream pipeline 212a and the downstream pipeline 212b receive pressurized gas at the same time. When the annular pressurization channel 22 connected to the upstream pipeline 212a receives more pressurized gas to the maximum expansion volume within its tolerance range, the annular pressurization channel 22 no longer receives more pressurized gas, so that the pressurized gas in the upstream pipeline 212a flows into the downstream pipeline 212b with a lower gas pressure.

[0047] Preferably, when the pressurized gas flows into the pipeline 212, due to the flow tendency of the pressurized gas after being filled into the closed environment, most of the gas of the specific pressure filled in the upstream pipeline 212a will enter the annular pressurization channel 22 connected to the upstream pipeline 212a, and a small part will directly flow into the downstream pipeline 212b with a smaller pipeline size. In the above-mentioned gas pipeline, the rear annular pressurization channel 22 in the upstream pipeline 212a has a greater pressure difference and a greater minimum flow rate than the downstream pipeline 212 of the next level, so that the annular pressurization channel 22 preferentially receives the pressurized gas in the upstream pipeline 212a, so that the annular pressurization channels 22 located at different axial positions of the gas pipeline can expand in sequence, thereby generating the expected pressure gradient, effectively simulating the sequential pressure changes when the rope is wrapped around the fingers and palms, so that the pressurization component 2 can effectively complete the intermittent hand squeezing work.

[0048] It should be noted that the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the present specification and its drawings are illustrative and do not constitute a limitation on the claims. The scope of protection of the present invention is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set, so the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A variable temperature pressurized glove, comprising at least a wearable body (1) that can be worn on the hand of a stroke patient, characterized in that: The wearable body (1) is detachably mounted with a pressurizing component (2) capable of applying intermittent squeezing force to the patient's hands to relieve limb edema, and a temperature control component (3) capable of providing adjustable periodic temperature stimulation of alternating hot and cold to the hands, wherein: The pressurizing component (2) at least comprises a gas pipeline (21) capable of directional delivery of pressurized gas and an annular pressurizing channel (22) capable of surrounding the patient's fingers or palm and intermittently applying a squeezing force to the hand, wherein the annular pressurizing channel (22) is arranged at intervals along the axial direction of the gas pipeline (21), and the annular pressurizing channel (22) is connected to the gas pipeline (21) in a manner that the gas pipeline (21) directional delivers pressurized gas to the inside thereof, so that a plurality of the annular pressurizing channels (22) arranged at intervals are expanded in a gradient manner. The annular pressurized channel (22) comprises at least a flexible pipeline (221) capable of expanding when filled with pressurized gas and exerting a squeezing force on the limb it surrounds, and a limiting module (222) capable of limiting the expansion direction of the flexible pipeline (221). The limiting module (222) can constrain the divergent expansion of the flexible pipeline (221) to directional expansion, so that the interior of the flexible pipeline (221) is gradually filled and exerts a varying squeezing force on the surface of the limb.

2. The variable temperature pressurized glove according to claim 1, characterized in that: The gas pipeline (21) is formed by connecting a plurality of pipelines (212) with different inner diameters in sequence along the length direction of the finger or palm. The pipeline (212) comprises an upstream pipeline (212a) and a downstream pipeline (212b) whose inner diameters decrease step by step and are capable of adjusting the flow direction of the pressurized gas.

3. The variable temperature pressurized glove according to claim 2, characterized in that: A connecting hole (213) capable of communicating with the annular pressurized channel (22) is also provided on the wall of the pipeline (212). In the initial stage of injecting pressurized gas into the pipeline (212), the upstream pipeline (212a) limits the size of the connecting hole (213) to match its own pipe diameter in such a way that the flow rate through the connecting hole (213) into the annular pressurized channel (22) is greater than the flow rate into the downstream pipeline (212b).

4. The variable temperature pressurized glove according to claim 1, characterized in that: The wearable body (1) comprises at least a finger cover (11) and a palm cover (12), wherein: The finger sleeve (11) for wrapping the finger knuckles comprises at least a finger sleeve inner cushion layer (111), a finger sleeve outer protective layer (112), and a finger sleeve filling layer (113) arranged between the finger sleeve inner cushion layer (111) and the finger sleeve outer protective layer (112); The palm sleeve (12) for accommodating the palm comprises at least a palm sleeve inner cushion layer (121), a palm sleeve outer protective layer (122) and a palm sleeve filling layer (123).

5. The variable temperature pressurized glove according to claim 4, characterized in that: The finger sleeve filling layer (113) and the palm sleeve filling layer (123) are both provided with the pressurizing component (2) and the temperature control component (3) capable of transmitting pressure and temperature to the hand limbs, wherein: The pressurizing component (2) is arranged in the groove cavity of the finger sleeve filling layer (113) and the palm sleeve filling layer (123) facing the finger sleeve inner padding layer (111) and the palm sleeve inner padding layer (121).

6. The variable temperature pressurized glove according to claim 5, characterized in that: The temperature control component (3) is embedded in the layer structure of the finger sleeve filling layer (113) and the palm sleeve filling layer (123) facing the finger sleeve outer protective layer (112) and the palm sleeve outer protective layer (122).

7. The variable temperature pressurized glove according to claim 6, characterized in that: The temperature control component (3) comprises at least a semiconductor refrigeration unit (31), a heat transfer module (32), a flexible water pipe (33) and a fixed film (34), wherein the semiconductor refrigeration units (31) are distributed in the finger sleeve filling layer (113) and the palm sleeve filling layer (123) in an alternately arranged manner; The semiconductor refrigeration unit (31) is equipped with a heat transfer module (32) capable of assisting it in completing heat transfer, and the heat transfer modules (32) are interconnected through the flexible water pipe (33).

8. The variable temperature pressurized glove according to claim 7, characterized in that: The fixed film (34) is attached to the surfaces of the finger sleeve filling layer (113) and the palm sleeve filling layer (123) to define the installation positions of the semiconductor refrigeration unit (31), the heat transfer module (32), and the flexible water pipe (33).

9. The variable temperature pressurized glove according to claim 8, characterized in that: The temperature control component (3) further comprises a water supply component (35), wherein the water pipe (353) of the water supply component (35) comprises a plurality of branch pipes capable of simultaneously connecting the flexible water pipes (33) corresponding to different areas of the hand and arranged in parallel.

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