Blood circulation driver and application thereof

Abstract

The invention relates to the technical field of medical auxiliary supplies, in particular to a blood circulation driver which comprises a leg sleeve, an inflation mechanism and a massage mechanism are arranged in the leg sleeve, and the inflation mechanism is communicated with the massage mechanism through an electromagnetic valve. A three-way valve used for maintaining air pressure balance is further arranged between the inflation mechanism and the massage mechanism. Through mutual cooperation of the inflation mechanism, the electromagnetic valve and the three-way valves, step-by-step pressurization, inflation and deflation massage and air pressure stabilization of the massage mechanism are achieved, and the problem of overall damage caused by too large air pressure in the driver during failure is solved through the arrangement of the multiple three-way valves; the technical problems that in the prior art, gas cannot be recycled, and the gas pressure is increased slowly are solved. The device is reasonable in design, convenient to operate and high in applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary products, and in particular to a blood circulation driver and application thereof. Background Art

[0002] Sepsis is fatal organ failure caused by a severe disorder in the host's response to infection. In severe cases, it can progress to septic shock and is one of the leading causes of death worldwide. The coagulation system of patients with sepsis may be seriously affected, including changes in blood coagulation and abnormalities in vascular wall function, which can easily lead to various complications.

[0003] Lower extremity venous thrombosis is one of the common complications of patients with sepsis. Due to the systemic inflammatory response and changes in blood coagulation caused by sepsis, the patient's lower extremity veins may experience slow blood flow and increased blood viscosity, thereby increasing the risk of thrombosis. Once lower extremity venous thrombosis occurs, it will not only aggravate the patient's condition, but may also cause serious consequences such as pulmonary embolism, and even threaten the patient's life. In order to prevent the formation of lower extremity venous thrombosis in patients with sepsis, the medical community has been exploring effective prevention and treatment measures.

[0004] After searching, a Chinese patent application with the authorization announcement number CN 213251040 U discloses a portable pneumatic anti-deep vein thrombosis massager for lower limbs, including a fixing belt and a protective box, a notch is provided on the side of the fixing belt, an adhesive layer is provided at one end of the side of the fixing belt, an elastic adhesive tape is provided at one end of the side of the fixing belt away from the adhesive layer, an air bag is provided inside the fixing belt, a rubber ball is fixedly connected to the side of the air bag, and a trachea is provided at the top of the air bag. The portable pneumatic anti-deep vein thrombosis massager for lower limbs, through the setting of the fixing belt, the air bag, the rubber ball, the trachea and the air pump, the patient can put the fixing belt on the lower limbs through the elastic adhesive tape, operate the air pump, and make the air pump repeatedly inflate and inhale the air bag through the trachea, so that the rubber ball can be squeezed inward regularly, which plays a role of repeatedly massaging the lower limbs of the patient, and promotes the blood circulation of the lower limbs of the patient, and the device is easy for the patient to carry and more convenient to use.

[0005] The above massager achieves the purpose of massage by repeatedly inflating and deflating the airbag through an air pump, but this process causes the air pressure in the airbag to increase relatively slowly, making the interval between repeated squeezing and massage too long, thereby affecting the massage effect. Summary of the invention

[0006] Sepsis patients are prone to complications of lower limb venous thrombosis. In order to prevent the occurrence of lower limb venous thrombosis, legs are usually massaged in clinical practice to prevent the occurrence of lower limb venous thrombosis. The massager in the above-mentioned prior art repeatedly inflates and deflates the air bag by an air pump to achieve the massage purpose, but this process makes the air pressure in the air bag increase relatively slowly, which makes the interval between repeated squeezing massage too long, thereby affecting the technical problem of the massage effect.

[0007] Technical idea: The special technical idea of ​​this application is to achieve step-by-step pressurization and cyclic charging and discharging of the gas in the airbag through the regulation of the solenoid valve and the three-way valve, and to achieve the balance of the gas pressure in the airbag by secondary discharge of gas through the coordination of multiple three-way valves, and to serve the security purpose of the driver as a whole.

[0008] To achieve the above object, the technical solution adopted by the present invention is: A blood circulation driver comprises a leg sleeve, wherein an inflation mechanism and a massage mechanism are arranged in the leg sleeve, the inflation mechanism and the massage mechanism are connected via a solenoid valve, and a three-way valve for maintaining air pressure balance is also arranged between the inflation mechanism and the massage mechanism.

[0009] In the above technical solution, the leg sleeve is an expandable rectangular parallelepiped structure, and the expanded end is connected by Velcro.

[0010] Furthermore, the inflation mechanism includes an inflation pump connected to the outside of the leg sleeve, and an air storage chamber and an exhaust chamber opened in the leg sleeve.

[0011] It should be noted that the air storage chamber is opened inside the leg sleeve and close to the outer wall of the leg sleeve, so that the air storage chamber forms a cavity inside the leg sleeve, and two exhaust chambers are opened at intervals and close to the inner wall of the leg sleeve, so that the two exhaust chambers each form a cavity inside the leg sleeve.

[0012] Furthermore, the massage mechanism includes a plurality of air bags connected to the leg sleeve, and the plurality of air bags are arranged at intervals on both sides of the exhaust chamber.

[0013] Specifically, there are six airbags, each of which is provided with a solenoid valve connecting the air storage chamber and the exhaust chamber, and the solenoid valve is a one-way air intake valve.

[0014] It should be noted that the airbags are arranged in groups of two each in the leg sleeve, forming a structural arrangement in which an exhaust chamber is arranged in the middle of four airbags.

[0015] In the above technical solution, there are six three-way valves, including a valve body and valves respectively connecting the airbag and the exhaust chamber.

[0016] Specifically, a piston A, a spring A, a piston B and a spring B are slidably arranged in sequence from bottom to top in the valve body. The piston A is connected to the spring A, and the piston B is connected to the spring B.

[0017] In detail, the valve includes a first interface connected to the airbag, a second interface connected to the exhaust chamber, and a third interface connected to the outside.

[0018] In the above technical solution, a massage device for preventing lower limb venous thrombosis includes a blood circulation driver.

[0019] Furthermore, a method for operating a blood circulation driver comprises the following steps: S1: Open the solenoid valve to inflate the air storage chamber and the airbag used for leg massage; S2: The air pressure in the airbag increases, and the gas is discharged into the exhaust chamber through the three-way valve; S3: The gas in the exhaust chamber and the gas storage chamber circulates into the airbag through the solenoid valve; S4: If one of the three-way valves fails, the air pressure in the airbag increases and the excess gas is discharged through the other three-way valve.

[0020] A method for operating a blood circulation driver comprises the following steps: S1: During the operation of other three-way valves, the air pressure in the airbag used for leg massage increases, the gas enters the first interface to push the piston A upward to open the second interface, and the excess gas enters the exhaust chamber; S2: The exhaust chamber is filled with gas, and the gas continuously pushes piston A and piston B upward to open the third interface, and the excess gas is discharged.

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes leg massage and promotes blood circulation by setting the airbag in the leg sleeve, which can effectively prevent the formation of lower limb venous thrombosis. The gas in the airbag can be gradually pressurized and cyclically charged and discharged through the regulation of the air storage chamber, the exhaust chamber, the solenoid valve and the three-way valve. The air pressure in the airbag can be balanced through the mutual cooperation between multiple three-way valves, and the technical problem of damage to the entire driver when one of the three-way valves fails can be effectively avoided, thereby achieving a technical effect of security.

[0022] 2. The present invention provides an expandable leg sleeve, which is convenient for being put on the patient's legs and can be suitable for patients with different leg shapes. The leg sleeve is adjustably fitted and fixed by Velcro, so that the leg sleeve fits the patient's legs more closely and is more fixed, avoiding the technical problem of the leg sleeve falling off due to being too loose or causing blood circulation problems in the legs due to being too tight.

[0023] 3. The present invention can achieve squeezing massage on the legs by setting an air bag in the leg sleeve, which can effectively promote blood circulation and prevent the formation of venous thrombosis in the lower limbs. The air storage chamber and the exhaust chamber are set to facilitate rapid inflation and deflation of air in the air bag to form a gas cycle. The electromagnetic valve can be set to selectively control any air bag to perform inflation massage through the air storage chamber and the exhaust chamber, thereby improving the inflation efficiency and realizing the recycling of gas.

[0024] 4. The present invention achieves the balance of air pressure in the airbag through the coordination between six three-way valves. When the air pressure in the airbag is too high, the gas pushes the piston A in the three-way valve, and the piston A pushes the spring A to compress, so that the three-way valve is connected to the second interface connected to the exhaust chamber, and the excess gas enters the exhaust chamber and enters the next cycle of inflation. If one of the three-way valves fails, when the exhaust chamber is full of gas, the three-way valve is continuously pressurized, so that the spring B in the three-way valve is compressed, and then the excess gas is discharged to the outside of the driver, avoiding the problem of overall damage caused by excessive air pressure inside the driver, and achieving the technical effect of fault safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Middle top view; Figure 3 For the present invention Figure 2 Section view in the AA direction; Figure 4 For the present invention Figure 2 Cross-sectional view in the middle BB direction; Figure 5 For the present invention Figure 4 Schematic diagram of the three-dimensional structure; Figure 6 It is a schematic diagram of the enlarged structure of the three-way valve of the present invention; Figure 7 In the initial state of the present invention Figure 6 A cross-sectional view of Figure 8 is a cross-sectional view of the second interface of the present invention in an open state; Fig. 9 It is a cross-sectional view of the second interface and the third interface of the present invention when both are in an open state; In the figure: 1. Leg sleeve; 11. Velcro; 2. Inflating mechanism; 21. Inflating pump; 22. Air storage chamber; 23. Exhaust chamber; 3. Massage mechanism; 31. Airbag; 4. Solenoid valve; 5. Three-way valve; 51. Valve body; 511. Piston A; 512. Spring A; 513. Piston B; 514. Spring B; 52. Valve; 521. First interface; 522. Second interface; 523. Third interface. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "front end", "back end", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0029] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The inventors found in clinical and research that in order to prevent the formation of lower extremity venous thrombosis in patients with sepsis, the medical community has been exploring effective prevention and treatment measures, and the gradually pressurized blood circulation driver is one of the innovative technologies. This driver promotes blood circulation in the lower extremity veins by gradually increasing the pressure, accelerating blood flow, thereby preventing blood from stagnating and coagulating in the lower extremity veins. At the same time, it can also improve the function of the blood vessel wall, reduce the release of inflammatory mediators, and reduce the risk of thrombosis.

[0031] Based on the above findings, the present application provides a blood circulation driver, including a leg sleeve 1, in which an inflation mechanism 2 and a massage mechanism 3 are arranged, the inflation mechanism 2 and the massage mechanism 3 are connected through an electromagnetic valve 4, and a three-way valve 5 for maintaining air pressure balance is also arranged between the inflation mechanism 2 and the massage mechanism 3. Example

[0032] Reference Figure 1-9 As shown, the present application provides a blood circulation driver, including a leg sleeve 1, wherein an inflation mechanism 2 and a massage mechanism 3 are arranged in the leg sleeve 1, the inflation mechanism 2 and the massage mechanism 3 are connected via an electromagnetic valve 4, and a three-way valve 5 for maintaining air pressure balance is also arranged between the inflation mechanism 2 and the massage mechanism 3.

[0033] In the above technical solution, the leg sleeve 1 is an expandable rectangular structure, and the expanded end is connected by a Velcro 11. The setting of the openable and closable leg sleeve makes it easy to be used on the legs of different patients, and the leg sleeve 1 can be adjustably fitted and fixed by the Velcro 11, so that the leg sleeve 1 is more closely fixed to the patient's leg.

[0034] Furthermore, the inflation mechanism 2 includes an inflation pump 21 connected to the outside of the leg sleeve 1 , and an air storage chamber 22 and an exhaust chamber 23 opened in the leg sleeve 1 .

[0035] It should be noted that the air storage chamber 22 is opened inside the leg sleeve 1 and close to the outer wall of the leg sleeve 1, so that the air storage chamber 22 forms a cavity in the leg sleeve 1, and two exhaust chambers 23 are opened at intervals and close to the inner wall of the leg sleeve 1, so that the two exhaust chambers 23 each form a cavity in the leg sleeve 1.

[0036] Furthermore, the massage mechanism 3 includes a plurality of air bags 31 connected to the leg sleeve 1 , and the plurality of air bags 31 are arranged at intervals on both sides of the exhaust chamber 23 .

[0037] Specifically, there are six airbags 31 , and each of the airbags 31 is provided with a solenoid valve 4 connecting the air storage chamber 22 and the exhaust chamber 23 , and the solenoid valve 4 is a one-way air intake valve.

[0038] It should be noted that the airbags 31 are arranged in pairs in the leg sleeve 1, forming a structural arrangement in which an exhaust chamber 23 is arranged in the middle of four airbags 31.

[0039] During the specific process, the air pump 21 is turned on, so that the air pump 21 inflates the air storage chamber 22 and the airbag 31 through the solenoid valve 4, and the gas in the airbag 31 is discharged into the exhaust chamber 23 through the three-way valve 5. During the cyclic inflation process, the gas in the air storage chamber 22 and the exhaust chamber 23 further enters the airbag 31 through the solenoid valve 4 to achieve squeezing massage of the legs.

[0040] Furthermore, there are six three-way valves 5 , including a valve body 51 and valves 52 respectively connecting the airbag 31 and the exhaust chamber 23 .

[0041] Specifically, a piston A511, a spring A512, a piston B513 and a spring B514 are slidably disposed in sequence from bottom to top in the valve body 51. The piston A511 is connected to the spring A512, and the piston B513 is connected to the spring B514.

[0042] In detail, the valve 52 includes a first interface 521 communicating with the airbag 31 , a second interface 522 communicating with the exhaust chamber 23 , and a third interface 523 communicating with the outside.

[0043] It should be noted that the setting of spring A512 can effectively achieve the stability of the air pressure in the airbag 31, and the stiffness coefficient of spring B514 is greater than the stiffness coefficient of spring A. When the gas in the exhaust chamber 23 is saturated, the gas continues to push the spring B513 to be compressed, thereby opening the third interface 523, so that the excess is discharged to the outside of the drive. Specific application cases:

[0044] Sepsis is fatal organ failure caused by a severe disorder in the host's response to infection. In severe cases, it can progress to septic shock and is one of the leading causes of death worldwide. The disease types are divided into sepsis and septic shock. Globally, more than 19 million people suffer from sepsis each year, of which about 6 million die, and about 3 million patients have cognitive impairment.

[0045] Lower extremity venous thrombosis is one of the common complications of sepsis patients. Due to the systemic inflammatory response and changes in blood coagulation caused by sepsis, the patient's lower extremity veins may experience slow blood flow and increased blood viscosity, thereby increasing the risk of thrombosis. Once lower extremity venous thrombosis occurs, it will not only aggravate the patient's condition, but may also cause serious consequences such as pulmonary embolism, and even threaten the patient's life.

[0046] In order to prevent the formation of lower extremity venous thrombosis in patients with sepsis, the medical community has been exploring effective prevention and treatment measures. Based on the above situation, the present application provides a blood circulation driver. During the specific operation, the leg sleeve 1 is sleeved on the patient's leg, and then fixed by Velcro 11, so that the driver is fixed to the patient's leg as a whole. Further, by turning on the inflation pump 21, the inflation pump 21 inflates the air storage chamber 22 and the air bag 31 through the solenoid valve 4, and the inflated air bag 31 squeezes and massages the legs; further, the gas in the air bag 31 is discharged into the exhaust chamber 23 through the three-way valve 5 to achieve the deflation process. During the cyclic inflation process, the gas in the air storage chamber 22 and the exhaust chamber 23 further enters the air bag 31 through the solenoid valve 4 to achieve squeezing and massaging the legs.

[0047] When the air pressure in the airbag 31 is too high, the gas pushes the piston A511 in the three-way valve 5, and the piston A511 pushes the spring A512 to compress, so that the three-way valve 5 is connected to the second interface 522 connected to the exhaust chamber 23, and the excess gas enters the exhaust chamber 23 to enter the next cycle of inflation. If one of the three-way valves 5 fails, when the exhaust chamber 23 is full of gas, the three-way valve 5 is continuously pressurized, so that the spring B514 in the three-way valve 5 is compressed, and then the excess gas is discharged to the outside of the driver, avoiding the problem of overall damage caused by excessive air pressure inside the driver, and achieving the technical effect of fault safety.

[0048] It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A blood circulation driver, comprising a leg sleeve (1), characterized in that: An inflating mechanism (2) and a massage mechanism (3) are arranged in the leg sleeve (1); the inflating mechanism (2) and the massage mechanism (3) are connected via a solenoid valve (4); and a three-way valve (5) for maintaining air pressure balance is also arranged between the inflating mechanism (2) and the massage mechanism (3).

2. A blood circulation driver according to claim 1, characterized in that: The inflation mechanism (2) comprises an inflation pump (21) connected to the outside of the leg sleeve (1), and an air storage chamber (22) and an exhaust chamber (23) provided in the leg sleeve (1).

3. A blood circulation driver according to claim 2, characterized in that: The massage mechanism (3) comprises a plurality of air bags (31) connected to the leg sleeve (1), and the plurality of air bags (31) are arranged at intervals on both sides of the exhaust chamber (23).

4. A blood circulation driver according to claim 3, characterized in that: There are six airbags (31), and each of the airbags (31) is provided with a solenoid valve (4) that connects the air storage chamber (22) and the exhaust chamber (23), and the solenoid valve (4) is a one-way air intake valve.

5. A blood circulation driver according to claim 4, characterized in that: There are six three-way valves (5), each comprising a valve body (51) and a valve (52) respectively connecting the air bag (31) and the exhaust chamber (23).

6. A blood circulation driver according to claim 5, characterized in that: A piston A (511), a spring A (512), a piston B (513) and a spring B (514) are slidably disposed in sequence from bottom to top in the valve body (51), wherein the piston A (511) is connected to the spring A (512), and the piston B (513) is connected to the spring B (514).

7. A blood circulation driver according to claim 6, characterized in that: The valve (52) comprises a first interface (521) connected to the air bag (31), a second interface (522) connected to the exhaust chamber (23), and a third interface (523) connected to the outside.

8. The massage device for preventing lower extremity venous thrombosis according to claim 7, characterized in that: Including blood circulation drive.

9. The method for operating a blood circulation driver according to claim 8, characterized in that: The following steps are involved: S1: opening the solenoid valve (4) to inflate the air storage chamber (22) and the air bag (31) for leg massage; S2: The air pressure in the airbag (31) increases, and the gas is discharged into the exhaust chamber (23) through the three-way valve (5); S3: The gas in the exhaust chamber (23) and the gas storage chamber (22) circulates into the air bag (31) through the solenoid valve (4); S4: If one of the three-way valves (5) fails, the air pressure in the airbag (31) increases, and the excess gas is discharged through the other three-way valves (5).

10. The method for operating a blood circulation driver according to claim 9, characterized in that: The following steps are involved: S1: During the operation of the other three-way valves (5), the air pressure in the airbag (31) for leg massage increases, the air enters the first interface (521) and pushes the piston A (511) upward to open the second interface (522), and the excess air enters the exhaust chamber (23); S2: The exhaust chamber (23) is filled with gas, and the gas continuously pushes piston A (511) and piston B (513) upward to open the third interface (523), and the excess gas is discharged.

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