Smart compression band

Abstract

A smart compression band according to one embodiment of the present specification includes a temperature control module (140) configured to selectively provide heating or cooling to a user's skin area, a pressure control module (150) configured to apply adjustable pressure to said skin area, and a control unit (120) for controlling said temperature control module (140) and said pressure control module (150). The above control unit (120) is characterized by being configured to execute (a) a 'preparation mode' in which, in the pre-blood collection stage, the temperature control module (140) is controlled to provide heat to the skin area; (b) a 'compression mode' in which, during the blood collection stage, the operation of the temperature control module (140) is stopped and the pressure control module (150) is controlled to apply a first set pressure to the skin area; and (c) an 'after-care mode' in which, in the post-blood collection stage, the temperature control module (140) is controlled to provide cooling to the skin area while the pressure control module (150) is controlled to apply a second set pressure.

Description

Technology Field

[0001] This specification relates to a smart compression band. More specifically, this specification relates to a smart compression band that actively controls pressure and temperature to increase the overall efficiency of the blood donation or venous blood collection process, add a function to alleviate the burden on medical staff, and minimize side effects on patients. Background Technology

[0002] Venous blood collection or donation is one of the most fundamental diagnostic and therapeutic procedures in modern medicine. The success of these procedures depends heavily on the patient's venous condition, and applying appropriate pressure during the procedure is crucial.

[0003] Conventional techniques have primarily relied on tourniquets in the form of rubber bands or elastic bands. However, these manual methods are subject to significant pressure variations depending on the medical staff's subjective intuition and experience. Excessive pressure can block arterial flow, causing severe pain and tissue damage to the patient. Furthermore, if the blood withdrawal rate is too fast, the blood disappears quickly, forcing the heart to beat faster to supply oxygen and nutrients from the remaining blood, which can strain the heart. Conversely, insufficient pressure prevents the vein from dilating sufficiently, leading to failed needle insertion and requiring repeated attempts. Additionally, a slow blood withdrawal rate increases the time the blood is exposed to air, raising the risk of coagulation or infection. Therefore, maintaining an appropriate blood collection rate is crucial.

[0004] In particular, the success rate of the first blood collection is significantly low for patient groups with weak blood vessels (the elderly, patients with chronic diseases) or those whose blood vessels are difficult to see (children, obese patients), i.e., patients with 'Difficult Venous Access (DVA)'. Repeated needle insertion causes extreme pain, anxiety, and severe bruising (hematoma) in patients, which acts as a major cause of avoidance of blood donation. In other words, since blood collection needles are thicker than standard needles to prevent blood hemolysis, appropriate measures are required, but there are currently no solutions available.

[0005] Furthermore, problems remain even after blood collection is successfully completed. Bruising and swelling after blood collection are considered 'natural' side effects, and there is a complete lack of standardized 'on-site active care' solutions that are immediately applied on-site.

[0006] Several prior art methods have been proposed to address these problems.

[0007] First, there are mechanical pressure indicator tourniquets such as Ortrud Medical's 'tournIQ'. This technology partially resolves the issue of 'inaccurate pressure' by notifying the user that the appropriate pressure (e.g., 60-100 mmHg) has been reached through visual markings (Kiri-Tech) printed on the band. However, this is limited to the single function of 'pressure display' and, as a 'passive' device, it does not provide any active vasodilation (heating) function to increase blood collection success rates or active cooling function to prevent bruising after blood collection.

[0008] Second, there are expensive vein visualization devices such as AccuVein's 'AV500'. This technology contributes to dramatically increasing the success rate of the initial blood draw by projecting near-infrared (NIR) light onto the skin to display a real-time vein map. However, as this is high-cost capital equipment amounting to thousands of dollars, it is difficult to distribute to all blood draw environments. Furthermore, this device provides only a 'visualization' function and cannot perform 'compression' or 'post-cold' functions.

[0009] In conclusion, conventional technologies focus solely on solving individual problems such as 'pressure standardization,' 'vein visualization,' or 'automatic pressure regulation.' There are currently no products on the market that sequentially integrate and provide the three core functions of 'active heat,' 'compression,' and 'active cooling' throughout the entire blood collection process (Pre / Peri / Post), and this remains a clear 'unmet need.' Prior art literature

[65535] U.S. Patent Application Publication US2020 / 0222617 The problem to be solved

[0010] The present invention was devised to solve the problems mentioned in the background technology above.

[0011] The first technical objective of the present invention is to increase the success rate of the first blood collection, particularly for a patient group with high blood collection difficulty, by providing an active thermal function in the pre-stage to expand blood vessels.

[0012] The second technical objective of the present invention is to optimize the blood collection speed by providing standardized and stable pressure during the blood collection (Peri-) stage.

[0013] The third technical objective of the present invention is to provide an immediate active cooling function and hemostatic compression simultaneously in the post-blood collection stage, thereby drastically preventing the occurrence of bruising and swelling at the scene.

[0014] The ultimate technical objective of the present invention is to provide an 'Integrated Management Workflow' that sequentially controls the first, second, and third objectives in a single integrated device (All-in-One Process Care) according to the time sequence of blood collection (before-during-after).

[0015] In particular, the core objective of the present invention is to provide a new system that 'integrates and controls' an 'active temperature control (heating / cooling) function' and a 'pressure control function' at each process stage in order to effectively achieve the above objectives. means of solving the problem

[0016] A smart compression band according to one embodiment of the present specification includes a temperature control module (140) configured to selectively provide heating or cooling to a user's skin area, a pressure control module (150) configured to apply adjustable pressure to said skin area, and a control unit (120) for controlling said temperature control module (140) and said pressure control module (150).

[0017] The above control unit (120) is characterized by being configured to execute (a) a 'preparation mode' in which, in the pre-blood collection stage, the temperature control module (140) is controlled to provide heat to the skin area; (b) a 'compression mode' in which, during the blood collection stage, the operation of the temperature control module (140) is stopped and the pressure control module (150) is controlled to apply a first set pressure to the skin area; and (c) an 'after-care mode' in which, in the post-blood collection stage, the temperature control module (140) is controlled to provide cooling to the skin area while the pressure control module (150) is controlled to apply a second set pressure.

[0018] The above temperature control module (140) may include a Peltier element capable of both heating and cooling depending on the direction of the applied current.

[0019] The pressure control module (150) may include i) an inflatable cuff, ii) a micro pump that supplies fluid to the cuff, and iii) a pressure sensor that measures the internal pressure of the cuff.

[0020] The smart compression band may further include a user interface (160) for receiving user input. The first set pressure may be determined based on a first value or a predefined value entered through the user interface (160).

[0021] The above first value may be based on a gauge associated with a needle or catheter for blood collection (e.g., a unit gauge associated with the needle diameter, G).

[0022] Multiple setting values ​​may be defined for multiple values ​​related to the gauge, and the first setting pressure may be determined based on the setting value defined for the first value among the multiple setting values.

[0023] The heating in the above 'prep mode' can be performed in the range of 38°C to 42°C, and the cooling in the above 'treatment mode' can be performed in the range of 5°C to 15°C.

[0024] The smart compression band may further include a digital display (161) that displays in real time i) the currently operating mode, ii) the current temperature of the skin area, and iii) the current pressure value of the pressure control module (150).

[0025] The control unit (120) can adaptively adjust the first set pressure based on the blood flow velocity in the 'compression mode'.

[0026] The smart compression band may further include a weight sensor (170) configured to measure the weight of the collected blood. The blood flow rate may be determined by the weight increase rate measured by the weight sensor (170).

[0027] The smart compression band may further include a blood flow measuring sensor (10) for measuring the blood flow rate. Effects of the invention

[0028] The 'smart compression band' according to the embodiments of the present specification provides the following significant effects compared to the prior art.

[0029] First, it dramatically improves the success rate of the first blood collection. The present invention provides an active thermal function during the 'preparation stage' prior to blood collection to raise the temperature of the skin and subcutaneous tissue, thereby dilating blood vessels (vasodilation). This clarifies the veins of patients with 'high difficulty of blood collection (DVA),' such as the elderly, children, and obese patients, thereby increasing the success rate of needle insertion. This gives the present invention value as a 'low-cost alternative' that supplements or replaces the objectives achieved by expensive equipment costing thousands of dollars (e.g., AccuVein) through 'visualization' using the low-cost (40 Goal 1) functional method of 'thermal therapy.'

[0030] Second, it immediately and effectively prevents bruising and swelling after blood collection. The present invention provides an immediate active cooling function and appropriate hemostatic compression simultaneously during the 'treatment stage' after blood collection. This directly addresses the "unmet market demand" and "previously non-existent standardized post-treatment care solution" identified in the background technology. Immediate cooling treatment at the site induces vasoconstriction and suppresses inflammatory responses, thereby minimizing the occurrence of bruising and swelling, which becomes a key factor in maximizing patient satisfaction.

[0031] Third, it standardizes medical processes and increases the efficiency of medical staff. The blood collection process, which was previously fragmented into three stages—finding veins (hot compress, infrared light for vein detection), compression (tourniquet), and hemostasis and cold compress (gauze / ice pack)—can now be managed as a single device of the present invention. This significantly reduces the workload of medical staff and lowers the possibility of errors at each stage, thereby improving the quality and safety of the overall medical service.

[0032] Fourth, it contributes to increasing blood donation participation rates by lowering the psychological barriers for patients. Bruising and pain are the primary causes of avoidance of blood donation. This invention technically resolves these physical side effects while simultaneously providing patients with a "psychological stability effect" through "digital feedback" that displays the current temperature, pressure, and operating mode, as mentioned above. This reduces the aversion to blood collection, ultimately contributing to the achievement of the social value of this invention, which is "increasing blood donation participation rates."

[0033] Conventional tourniquets, heating pads, and cold compresses each perform only a single function, and since the heating, compression, and cooling processes are performed by physically separated devices, they cannot provide a continuous treatment flow during the pre-, mid-, and post-blood collection processes. On the other hand, the present invention has a unique configuration in which a heating unit, a cooling unit, and a compression unit are integrated within a single band body, and a control unit (120) automatically switches between them in chronological order, thereby performing the entire medical process integrally in a single device. The technical concept of the present invention is not merely that the heating device, compression device, and cooling device are arranged in parallel, but that each module is configured to be organically linked by the control unit (120) according to a single process flow (heat → compression → cooling). Therefore, the present invention provides a sequential and integrated control structure optimized for improving the success rate of blood collection and suppressing bruising after blood collection, rather than a simple functional parallel arrangement, which is not suggested at all in the prior art. Brief explanation of the drawing

[0034] FIG. 1 illustrates the configuration of a smart compression band according to an embodiment of the present specification. FIG. 2 is a perspective view showing the wearing state of a smart compression band according to an embodiment of the present specification. FIG. 3 illustrates a front view of a smart compression band according to an embodiment of the present specification, viewed from the direction of arm insertion. Specific details for implementing the invention

[0035] In various embodiments of this specification, " / " and "," shall be interpreted as indicating "and / or". For example, "A / B" may mean "A and / or B". Furthermore, "A, B" may mean "A and / or B". Furthermore, "A / B / C" may mean "at least one of A, B and / or C". Furthermore, "A, B, C" may mean "at least one of A, B and / or C".

[0036] In various embodiments of this specification, "or" should be interpreted as indicating "and / or". For example, "A or B" may include "only A", "only B", and / or "both A and B". In other words, "or" should be interpreted as indicating "additionally or alternatively".

[0037] The embodiments of the present specification will be described in detail below with reference to the drawings.

[0038] FIG. 1 illustrates the configuration of a smart compression band according to an embodiment of the present specification.

[0039] Hereinafter, preferred embodiments of the present invention will be described in detail. Although the present invention may be described with reference to the drawings, this specification focuses on the core components and operating principles.

[0040] A smart compression band (100) according to an embodiment of the present specification may include a band body (110), a control unit (120), a power supply unit (130), a temperature control module (140), a pressure control module (150), a user interface (160), a weight sensor (170), and an optical blood flow sensor (180). The above-mentioned configurations are examples, and the smart compression band (100) may be implemented in various forms. For example, the smart compression band (100) may be implemented in a form excluding some configuration(s) among the above-mentioned configurations. For example, the smart compression band may be implemented in a form that further includes other configurations related to blood collection in addition to the above-mentioned configurations.

[0041] The aforementioned configurations are explained in more detail below.

[0042] The band body (110) is configured to be worn on a body part such as a user's arm. The band body (110) may include an inner layer (111) that comes into direct contact with the skin and an outer layer (112) that covers the outside. For hygienic use, the inner layer (111) may be configured in the form of a disposable or replaceable hygienic cover to prevent cross-infection.

[0043] The control unit (120) controls other components of the smart compression band (100) to be coupled to the band body and to perform the core functions described below. For example, the control unit (120) controls the temperature control module (140) and the pressure control module (150).

[0044] The control unit (120) includes a microprocessor (CPU), memory, and firmware, and is programmed to execute a 'sequential workflow' which is the core of the present invention. Specifically, the control unit (120) is configured to execute: (a) a 'preparation mode' in which, in the pre-blood collection stage, the temperature control module (140) is controlled to provide heat to the skin area; (b) a 'compression mode' in which, during the blood collection stage, the operation of the temperature control module (140) is stopped and the pressure control module (150) is controlled to apply a first set pressure to the skin area; and (c) an 'after-care mode' in which, in the post-blood collection stage, the temperature control module (140) is controlled to provide cooling to the skin area while the pressure control module (150) is controlled to apply a second set pressure.

[0045] The power supply unit (130) supplies power to the smart compression band (100). More specifically, the power supply unit (130) supplies power to the components (e.g., 120, 140, 150, 160, 180) of the smart compression band (100).

[0046] The core components of the smart compression band (100) according to the embodiment of the present specification are as follows.

[0047] 1. Temperature control module (140)

[0048] The temperature control module (140) is configured to selectively provide heating or cooling to the skin contact surface according to a signal from the control unit (120) in order to perform both a 'heating function' and a 'cooling function'.

[0049] For example, the temperature control module (140) may include a thermoelectric module, such as a Peltier element, capable of both heating and cooling depending on the direction of the current. A Peltier element has the characteristic that one side heats up and the opposite side cools depending on the direction of the applied current. Although a Peltier element can provide heat, it is used only for cooling because the temperature is not constant and it continuously overheats, posing a risk of burns, and a PTC circuit may be used for heating. A PTC circuit can maintain a constant temperature, so the risk of burns is low. Specifically, a PTC (Positive Temperature Coefficient) heating element has a self-regulating characteristic in which the amount of current automatically decreases when the target temperature is reached, so it has the advantage of significantly reducing the risk of skin burns during the vasodilation phase.

[0050] As a specific example, the temperature control module (140) may include a heating section (141) and a cooling section (142). The heating section (141) may be implemented as a PTC (Positive Temperature Coefficient) circuit. The cooling section (142) may be implemented as a Peltier element. The cooling surface of the Peltier element may be thermally coupled to the skin contact surface through a thermal pad and a metal heat sink. The control unit (120) can stably maintain the skin temperature within a set cooling temperature range (e.g., 5 to 15°C) by controlling the driving current of the Peltier element (142) in steps.

[0051] For example, the temperature control module (140) may include a temperature sensor (e.g., a thermistor) that provides real-time feedback of the skin temperature so that the control unit (120) can accurately maintain the target temperature.

[0052] According to one embodiment, the control unit (120) may execute a closed-loop control algorithm for the temperature control module (140). As a specific example, the control unit (120) periodically samples a real-time temperature value (T) collected from a temperature sensor (145) (e.g., at intervals of 10 to 50 ms) and adjusts the driving current of the heating unit (141) (e.g., PTC circuit) or the cooling unit (142) (e.g., Peltier element) so that the error (|T - Tset|) with respect to the target temperature (Tset) is less than or equal to a predetermined threshold value (e.g., 0.5°C). This temperature control method prevents the temperature of the affected area from rising excessively or falling rapidly, thereby providing a stable heating / cooling effect.

[0053] 2. Pressure control module (150)

[0054] The pressure control module (150) implements a compression function that applies pressure during and after blood collection. For example, the pressure control module (150) is configured to apply adjustable pressure to a user's skin area.

[0055] For example, the pressure control module (150) may include i) an inflatable cuff, ii) a micro pump (152) that supplies fluid to the cuff, and iii) a pressure sensor (154) that measures the internal pressure of the cuff.

[0056] As a specific example, the pressure control module (150) may include an inflatable cuff (151) provided inside the band body (110), a micro pump (152) and an electronic valve (153) for selectively injecting (supplying) or exhausting air into the cuff (151), and a pressure sensor (154) for measuring the pressure inside the cuff (151) in real time.

[0057] According to one embodiment, the control unit (120) can execute a closed-loop control algorithm for the pressure control module (150). As a specific example, the control unit (120) can control the micro pump (152) and the electronic valve (153) based on the output value (P) of the pressure sensor (154). The control unit (120) can finely adjust the pressure by driving the pump (152) or opening the valve (153) when P deviates from the first set pressure (P1) or the second set pressure (P2) by ±3 mmHg or more. In this way, the present invention can precisely maintain the pressure required for venous compression within a certain range. 3. User interface (160)

[0058] The user interface (160) provides 'digital feedback' and 'manual control' functions. For example, the user interface (160) can receive input from the user. For example, the user interface (160) can display information related to blood collection (mode / pressure).

[0059] For example, the user interface (160) may include a digital display (161) that displays in real time at least one of i) the currently operating mode (prep / compression / treatment), ii) the current temperature of the skin area, and iii) the current pressure value of the pressure control module (150).

[0060] For example, the user interface (160) may include a mode selection button (162) (e.g., 'Ready', 'Compression', 'Complete' button) for medical personnel to manually start or switch each mode, and a pressure setting dial (163) for implementing 'manual dial adjustment'. According to one embodiment, mode switching may be performed automatically or semi-automatically by a control unit (120).

[0061] For example, the transition from the current operation mode (e.g., preparation mode) to the compression mode may be performed as follows: i) when the set heat maintenance time has elapsed or ii) when input from the compression button of the user interface (160) is detected, the control unit (120) switches the current operation mode (e.g., preparation mode) to the compression mode.

[0062] For example, the transition from the current operation mode (e.g., compression mode) to the treatment mode may be performed as follows: i) when the blood flow velocity is reduced to below a predefined threshold value by the blood flow sensor (180) or ii) when a completion button input of the user interface (160) is detected, the control unit (120) switches the current operation mode (e.g., compression mode) to the treatment mode.

[0063] Operating Mechanism: 3-Step Sequential Workflow

[0064] Below, the three-step sequential workflow, which is the most essential feature of the present invention, will be described in detail.

[0065] [Step 1: Pre-Phlebotomy 'Preparation Mode' (Heat + Expansion)] (Pre-Phlebotomy)

[0066] (Operation): For example, when medical personnel attach a smart compression band (100) to a patient's arm before blood collection and select the 'Ready' button (162) of the user interface (160), the control unit (120) can initiate a 'Ready Mode'. For example, the control unit (120) can initiate a 'Ready Mode' based on the power being turned on of the smart compression band (100).

[0067] (Control): (Based on the value entered via the mode selection button (162) indicating the ready mode or based on the power being turned on of the smart compression band (100)) the control unit (120) keeps the pressure control module (150) in an inactive state (e.g., P0≥30mmHg) and operates the temperature control module (140) in a 'heating mode' (e.g., operating the heating unit (141)). Since appropriate basic compression is also required for blood vessel exploration, the pressure (P0) in the inactive state can be set / defined to 30mmHg or a higher intensity, similar to a hemostatic situation, rather than 0.

[0068] (Parameter): The above-mentioned heating in 'prep mode' can be performed in the range of 38°C to 42°C. Specifically, the control unit (120) receives feedback from the temperature sensor and controls the temperature control module (140) so that the temperature of the skin contact surface is maintained at a first set temperature (e.g., 38°C to 42°C) optimized for vasodilation for a certain period of time (e.g., 60 seconds).

[0069] (Objective): Solve the problem of 'blood collection success rate' by expanding subcutaneous blood vessels using a 'thermal function'.

[0070] [Step 2: 'Compression Mode' during blood collection (Compression)] (Peri-Phlebotomy)

[0071] (Operation): For example, after vasodilation is confirmed, the control unit (120) may initiate a 'pressure mode' based on the medical staff selecting the 'Pressure' button (162) of the user interface (160). For example, the control unit (120) may initiate a 'pressure mode' based on the elapsed time of the above-mentioned period.

[0072] (Control): (Based on the value entered via the mode selection button (162) indicating the pressure mode or based on the time elapsed after the start of the preparation mode) the control unit (120) disables (OFF) the temperature control module (140) and activates the pressure control module (150).

[0073] According to one embodiment, the first set pressure may be determined based on a first value or a predefined value entered through the user interface (160).

[0074] For example, the first value may be based on a predefined value. As a specific example, the predefined value may be a pressure value optimized for venous compression (e.g., 60 mmHg).

[0075] For example, a first value (e.g., P1) for determining the first set pressure may be input through the user interface (160) (e.g., through the pressure setting dial (163) of the user interface (160)). For example, the first value may be based on a gauge associated with a needle or catheter for blood collection. More specifically, multiple set values ​​may be defined for multiple values ​​associated with the gauge (e.g., 14G, 16G, 17G, etc.). The first set pressure may be determined based on the set value defined for the first value among the multiple set values.

[0076] Table 1 below illustrates the plurality of values ​​associated with the gauge.

[0077] Gauge (G) Needle / catheter outer diameter OD (mm) use 14 G Approximately 2.1 mm Very thick, emergency IV fluids, massive blood transfusion, etc. 16 G Approximately 1.7 mm Rapid Fluid / Blood Transfusion 17 G Approximately 1.5 mm IV fluids, blood transfusions 18 G Approximately 1.3 mm Frequently used in adult IV fluids, blood transfusions, and emergency rooms 19 G Approximately 1.1 mm IV fluids, partial blood draw 20 G Approximately 0.9 mm One of the most commonly used venous catheter sizes 21 G Approximately 0.8 mm Very common as an adult blood collection needle 22 G Approximately 0.7 mm Blood draw for adults and children, intravenous injection 23 G Approximately 0.6 mm For children, fine blood vessels, butterfly needle, etc. 24 G Approximately 0.55 mm For children, the elderly, and fine veins 25 G Approximately 0.5 mm Subcutaneous injection, insulin, microsampling, etc. 26 G Approximately 0.45 mm Intradermal injection, very fine needle 27 G Approximately 0.4 mm Micro-injection, special uses such as cosmetic / skin care 30 G Approximately 0.3 mm Ultrafine needles, intended to minimize pain

[0078] For example, the control unit (120) operates the micro pump (152) to inflate the cuff (151), and when the measurement of the pressure sensor (154) reaches exactly the first set pressure (P1), it stops the pump and locks the valve (153) to maintain the pressure.

[0079] [Step 3: Post-Phlebotomy 'Treatment Mode' (Cooling + Hemostasis)] (Post-Phlebotomy)

[0080] (Operation): For example, immediately after removing the blood collection needle, based on the medical staff selecting the ‘complete’ button (162) of the user interface (160), the control unit (120) can initiate a ‘treatment mode’.

[0081] For example, when the control unit (120) determines that blood collection has ended based on measurements from the weight sensor (170) or optical blood flow sensor (180) (e.g., when the blood flow rate is below a certain value), the control unit (120) may initiate a 'treatment mode'.

[0082] (Control): The control unit (120) simultaneously controls two modules in combination.

[0083] 1. Cooling: The control unit (120) immediately switches the temperature control module (140) to 'cooling mode' (e.g., operation of the cooling unit (142)).

[0084] 2. Compression: The control unit (120) automatically adjusts (reduces or maintains) the pressure of the pressure control module (150) to a second set pressure (P2, e.g., 30 mmHg) suitable for hemostasis.

[0085] (Parameter): The cooling in the 'treatment mode' can be performed in the range of 5°C to 15°C. Specifically, the control unit (120) controls the temperature control module (140) so that the temperature of the skin contact surface is immediately lowered to a second set temperature (e.g., 5°C to 15°C) optimized for preventing bruising and vasoconstriction, and maintained for a certain period of time (e.g., 3 minutes).

[0086] (Purpose): Provides 'cooling function' and 'compression' simultaneously to immediately prevent bruising and swelling.

[0087] Table 2 below summarizes the operating status of each module in the three-stage sequential integration workflow, which is the core of the present invention.

[0088] Mode Key stages User input Temperature control module (140) Pressure control module (150) Core Objective Mode 1 Before blood collection (Pre-) 'Ready' button Heating (e.g., 38-42°C) Deactivated (P0≥30mmHg) Vasodilation, improvement in blood collection success rate Mode 2 During blood collection (Peri-) 'Pressure' button Disable (OFF) Pressure (e.g., 1st set pressure, P1, 60mmHg) Venous compression (Engorgement), pressure standardization Mode 3 After blood collection (Post-) 'Complete' button Cooling (e.g., 5-15°C) Hemostatic Compression (Pressure) (e.g., Set value P2, 30mmHg) Anti-bruising, immediate hemostasis

[0089] According to one embodiment, the control unit (120) can adaptively adjust the first set pressure (e.g., P1) based on the blood flow rate in the 'compression mode'. For example, the control unit (120) can be programmed to adaptively fine-tun the pressure (P1) by finely controlling the micro pump (152) and the valve (153) based on the blood flow rate during the 'compression mode' (mode 2).

[0090] For example, the smart compression band (100) may further include a weight sensor (170) configured to measure the weight of the collected blood. The blood flow rate may be determined by the weight increase rate measured by the weight sensor (170). As a specific example, the smart compression band (100) may further include a weight sensor or load cell (170) for measuring the weight increase of a blood pack containing the collected blood in real time.

[0091] For example, the smart compression band (100) may further include a blood flow measuring sensor (180) for measuring the blood flow rate.

[0092] FIG. 2 is a perspective view showing the wearing state of a smart compression band according to an embodiment of the present specification.

[0093] Specifically, FIG. 2 shows an example of a configuration in which the components (e.g., band body (110), digital display (161), mode selection button (162)) of a smart compression band (100) worn on a patient's arm connected to a blood collection injection line (2A) are arranged.

[0094] FIG. 3 illustrates a front view of a smart compression band according to an embodiment of the present specification, viewed from the direction of arm insertion.

[0095] Specifically, FIG. 3 shows an example of the configuration in which the components of the smart compression band (100) (e.g., control unit (120), heating unit (141), cooling unit (142), pressure control module (150), pressure sensor (154), blood flow measurement sensor (180)) are arranged when the smart compression band (100) is viewed from the direction (3A) in which the patient inserts their arm.

[0096] Embodiments according to the present specification may be implemented by various means, e.g., hardware, firmware, software, or a combination thereof. In the case of implementation by hardware, an embodiment of the present specification may be implemented by one or more ASICs (application specific integrated circuits), DSPs (digital signal processors), DSPDs (digital signal processing devices), PLDs (programmable logic devices), FPGAs (field programmable gate arrays), processors, controllers, microcontrollers, microprocessors, etc.

[0097] In the case of implementation by firmware or software, an embodiment of the present specification may be implemented in the form of a module, procedure, function, etc., that performs the functions or operations described above. The software code may be stored in memory and executed by a processor. The memory may be located inside or outside the processor and may exchange data with the processor by various known means.

Claims

Claim 1 A smart compression band used for blood donation comprises: a temperature control module (140) configured to selectively provide heating or cooling to a user's skin area; a pressure control module (150) configured to apply adjustable pressure to the skin area; a control unit (120) for controlling the temperature control module (140) and the pressure control module (150); and a weight sensor (170) configured to measure the weight of the collected blood, wherein the control unit (120) comprises: i) a preparation mode in which, in a pre-blood collection stage, the temperature control module (140) is controlled to provide heating to the skin area; and ii) a compression mode in which, in a blood collection stage, the operation of the temperature control module (140) is stopped and the pressure control module (150) is controlled to apply a first set pressure to the skin area. and iii) in the post-blood collection stage, the temperature control module (140) is controlled to provide cooling to the skin area, and at the same time, the pressure control module (150) is controlled to apply a second set pressure, thereby executing an After-Care Mode, wherein the heating in the preparation mode is performed in the range of 38°C to 42°C, and the cooling in the treatment mode is performed in the range of 5°C to 15°C, wherein the temperature control module (140) includes a Peltier element used for the cooling and a PTC (Positive Temperature Coefficient) circuit used for the heating, and the pressure control module (150) includes i) an inflatable cuff, ii) a micro pump supplying fluid to the cuff, and iii) a pressure sensor measuring the internal pressure of the cuff, wherein the control unit (120) controls the first set pressure based on the blood flow velocity in the compression mode, and the blood flow velocity is the weight measured by the weight sensor (170). A smart compression band characterized by being determined by an increase rate. Claim 2 delete Claim 3 delete Claim 4 In claim 1, the smart compression band further comprises a user interface (160) for receiving user input, and the first set pressure is determined based on a first value or a predefined value entered through the user interface (160). Claim 5 A smart compression band according to claim 4, characterized in that the first value is based on a gauge associated with a needle or catheter for blood collection. Claim 6 A smart compression band according to claim 5, characterized in that multiple setting values ​​are defined for multiple values ​​related to the gauge, and the first setting pressure is determined based on the setting value defined for the first value among the multiple setting values. Claim 7 delete Claim 8 A smart compression band according to claim 1, further comprising a digital display (161) that displays in real time i) the currently operating mode, ii) the current temperature of the skin area, and iii) the current pressure value of the pressure control module (150). Claim 9 delete Claim 10 delete Claim 11 A smart compression band according to claim 1, characterized in that the smart compression band further includes a blood flow measuring sensor (180) for measuring the blood flow velocity.

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