Blood sampling auxiliary bolster integrating automatic pressurization and cushion towel replacement functions

Abstract

The invention discloses a blood sampling auxiliary bolster integrating automatic pressurization and cushion towel replacement functions. The blood sampling auxiliary bolster comprises a flexible supporting cushion layer, an upper arm automatic pressurization air bag, a gas guide pipe, a disposable cushion towel, a cushion towel replacement mechanism, an operation control area and a power supply assembly. The control area is operated to control inflation and deflation of the air bag, and automatic pressurization and decompression operation on the upper limbs of a patient is achieved. The pad towel is automatically replaced through the storage reel and the guide roller, the operation efficiency is improved, and the risk of cross infection is reduced. The bolster structure supports detachable cleaning, and the high-frequency use requirement under the medical scene is met. Optionally, the device further comprises a recycling reel, a closed-loop pressure control module and a data communication module, and synchronous recycling of the used pad towel, pressure closed-loop adjustment and wireless uploading of blood sampling information are achieved. The automatic blood sampling device is reasonable in structural design, convenient to operate, capable of reducing the nursing work intensity and improving the standardization and automation degree of the blood sampling process, and suitable for various scenes such as outpatient service, sickrooms and mobile blood sampling.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care auxiliary equipment, and in particular to a blood sampling auxiliary pillow with integrated automatic pressurization and pad replacement functions. Background Art

[0002] In existing medical care operations, venous blood collection is a routine clinical operation and is widely used in various outpatient clinics, inpatient wards, physical examination centers, mobile blood collection vehicles and other places. To complete venous blood collection, nursing staff are usually required to apply pressure to the upper arm by manually wrapping a tourniquet to fill the veins of the patient's upper limbs and facilitate the puncture operation of the blood collection needle. After the pressurization is completed, the tourniquet must be loosened in time at the end of the blood collection to prevent blood reflux or local congestion. In addition, during the blood collection operation, a disposable pad is usually placed on the surface of the pillow to isolate the patient's skin from the surface of the pad, preventing sweat, blood and other contaminants from directly contacting the blood collection pillow body, thereby reducing the risk of cross infection.

[0003] In the existing technology, blood collection and hemostasis operations and drape replacement operations are generally completed manually. Nursing staff need to repeatedly wrap and remove the tourniquet, and manually replace the drape. This method has the problems of cumbersome operation procedures and low efficiency, which easily increases the labor intensity of nursing staff. Especially in an outpatient environment with large blood collection volumes and frequent patient rotations, long-term repetitive operations lead to work fatigue, and are prone to nursing safety hazards such as forgetting to remove the tourniquet and failing to replace the drape in time. In addition, manual replacement of the drape is prone to contaminated contact and there is a risk of cross-infection, which affects the patient experience and quality of care.

[0004] In view of the problems existing in the above-mentioned existing technologies, there is an urgent need to provide a blood collection auxiliary pillow with integrated automatic pressurization and pad replacement functions to optimize the blood collection operation process, realize automatic hemostasis pressurization, automatic decompression and automatic replacement of disposable pads, reduce the labor burden of nursing staff, improve nursing efficiency, reduce the risk of cross contamination, and ensure patient safety. Summary of the Invention

[0005] In order to solve the problems of the prior art, an embodiment of the present invention provides a blood collection auxiliary pillow with integrated automatic pressurization and pad replacement functions. The technical solution is as follows:

[0006] On the one hand, a blood collection auxiliary pillow with integrated automatic pressurization and pad replacement functions is provided, comprising:

[0007] A flexible support cushion layer is used to support the patient's upper limbs, and a disposable pad is provided on the surface of the flexible support cushion layer;

[0008] An upper arm automatic pressurization airbag is arranged inside or above the flexible support cushion layer and is used to surround and pressurize the patient's upper limb. The upper arm automatic pressurization airbag is connected to a micro air pump through a gas conduit;

[0009] A towel replacement mechanism includes a reserve reel and a guide roller, wherein the reserve reel is used to store unused disposable towels, and the guide roller is used to guide the towels to be laid flat on the surface of the flexible support cushion layer;

[0010] An operation control area, including a liquid crystal display area and a function key area, for controlling the inflation and deflation of the upper arm automatic pressurization airbag, as well as the replacement of the pad;

[0011] The power supply interface, power switch and indicator light are used for power access, start and stop control and working status indication of the equipment respectively.

[0012] Furthermore, the upper arm automatic pressurization airbag is made of thermoplastic polyurethane material, which is flexible and wear-resistant, and is suitable for multiple inflation and deflation cycles; its working pressure is set to 15kPa to 20kPa; its structure is a wrap-around long strip, forming a ring-shaped pressurization area around the patient's upper arm.

[0013] Furthermore, the reserve reel in the pad replacement mechanism is used to store continuously arranged disposable pads, and the length of the pads is set to support at least 20 consecutive replacements; the disposable pads are made of medical-grade non-woven fabric, are soft and skin-friendly, and have liquid absorption and breathability, and their size matches the surface of the flexible support cushion layer.

[0014] Furthermore, the guide roller is made of medical silica gel or high molecular polyurethane, and the roller is supported and installed by a bearing, has a self-lubricating function, and is used to guide the pad to be laid flatly to prevent slipping or wrinkling.

[0015] Furthermore, the LCD screen of the operation control area is used to display the following contents: real-time pressure value of the airbag, current operation mode, device power status, remaining number of pads and fault prompt information; the function button area includes: start pressurization button, decompression button and pad replacement button, which are used to control the airbag inflation, exhaust and pad replacement operations respectively.

[0016] Furthermore, the power supply interface is a USB interface or a DC jack interface, which has the function of switching between plug-in power supply and charging mode; the power switch is used to control the start and stop of the whole machine; the indicator light is used to indicate the operating status of the equipment, including green for normal operation, yellow for standby or low power, and red for fault alarm.

[0017] Furthermore, the flexible support cushion, upper arm automatic pressurized airbag, reserve reel and guide roller are all detachably connected to the main body shell through a snap or plug-in structure to facilitate disassembly, cleaning and high-temperature disinfection.

[0018] Furthermore, it also includes a recycling reel and an automatic recycling mechanism; the recycling reel is used to recycle the used disposable towel; the automatic recycling mechanism includes a micro drive motor and a transmission structure, which drives the recycling reel to rotate synchronously to realize automatic recycling of the towel when it is replaced.

[0019] Furthermore, it also includes an airbag pressure monitoring and closed-loop control module, which includes a pressure sensor and a control unit. The pressure sensor is used to collect the internal pressure data of the upper arm automatic pressurization airbag in real time. The control unit adjusts the working state of the micro air pump according to the collected data to achieve constant pressure control.

[0020] Furthermore, it also includes a data communication module, which is connected to the hospital nursing information system via Bluetooth, WiFi or other wireless communication methods, and is used to upload the equipment's operating data, pressurization records and pad replacement records to achieve digital management of nursing information.

[0021] The technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0022] This invention discloses a blood collection auxiliary pillow with integrated automatic pressurization and diaper replacement functions. By integrating automatic hemostasis and pressurization, automatic decompression, and automatic disposable diaper replacement, it effectively optimizes the traditional venous blood collection process. The device has a rational structural design and is easy to operate. It is suitable for a variety of nursing scenarios, including outpatient clinics, wards, physical examination centers, and mobile blood collection vehicles, and is adaptable to patients of different body types.

[0023] By replacing traditional tourniquets with an automatic pressurized airbag, pressure and decompression can be achieved with a single click, reducing manual winding and removal, labor intensity, and the risk of operational errors. The drape replacement mechanism allows for quick and smooth drape replacement, ensuring single-person use and effectively preventing cross-contamination. The overall structure supports disassembly and disinfection, meeting the high-frequency use requirements of hospital settings.

[0024] Optionally, the present invention also includes a recycling mechanism, a closed-loop pressure control system and a data communication function, which further realizes the automatic rolling of the pad, precise pressure adjustment and uploading of nursing records, thereby improving the overall automation level and management standardization of nursing operations, and has good practicality and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1This is a schematic diagram of a blood collection auxiliary pillow with integrated automatic pressurization and pad replacement functions according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0028] This invention provides a blood collection assistive pillow with integrated automatic pressurization and drape replacement functions, suitable for assisting venous blood collection in a variety of settings, including hospital outpatient clinics, physical examination centers, inpatient wards, and mobile blood collection vehicles. The device automatically provides hemostatic pressurization, automatic decompression, and disposable drape replacement during the blood collection process, reducing nursing workload, improving blood collection efficiency, reducing the risk of cross-infection, and improving the patient experience.

[0029] like Figure 1 As shown, the blood collection auxiliary pillow of the present invention mainly includes: a flexible support pad layer 10, an upper arm automatic pressurized airbag 21, a gas duct 22, a disposable pad 31, a reserve reel 32, a guide roller 33, an operation control area 41 (including a liquid crystal display and buttons), a power supply interface 51, a power switch 52 and an indicator light 53.

[0030] The flexible support cushion layer 10 is used to support the patient's upper limbs. The interior of the cushion layer is filled with high-elasticity cushioning foam and covered with a medical-grade waterproof and anti-fouling cloth. The upper arm automatic pressurization airbag 21 is connected to the main unit through the gas conduit 22, which can automatically pressurize the upper arm by 15-20kPa. After the blood collection is completed, the pressure can be reduced with one button through the operation control area 41. The disposable pad 31 is released from the reserve reel 32 and is flatly laid on the surface of the flexible support cushion layer 10 through the guide roller 33, so that each patient can use it independently. The operation control area 41 integrates a liquid crystal display and buttons. The power supply interface 51, the power switch 52, and the indicator light 53 are used for power connection, start and stop, and working status indication respectively.

[0031] Specifically, the flexible support pad 10 is the main support structure of the present invention. It is rectangular or trapezoidal in shape, and its size can be customized according to the needs of different departments. The flexible support pad 10 is used to support the patient's upper limb and can be placed on the upper arm, forearm, or wrist to meet the needs of venous blood collection operations in different body positions.

[0032] The interior of the cushion layer 10 is made of high-elasticity cushioning foam material, which has good elasticity and support, can effectively disperse local pressure and prevent tissue compression caused by prolonged contact. The foam has good resilience, ensuring that the patient's arm rests comfortably and naturally on the cushion surface.

[0033] The outer layer is covered with a medical-grade waterproof and anti-fouling cloth cover made of medical TPU composite cloth or nano-impermeable coating, which is non-slip, liquid-resistant, and easy to clean. The flexible support layer 10 is designed with a surface area for laying a drape, allowing the disposable drape 31 to be laid flat on its surface, ensuring independent use for each patient and effectively preventing cross-contamination.

[0034] Specifically, the upper arm automatic pressurization airbag 21 is the core pressurization component of the present invention, which is arranged on the patient's upper arm and adopts a surround-type covering design. It can replace the traditional tourniquet to complete local pressurization during venous blood collection.

[0035] The airbag 21 is made of TPU (thermoplastic polyurethane) material, which has good flexibility and wear resistance and can be repeatedly inflated and deflated without leaking. The airbag is designed in the shape of a long ring, wrapping around the patient's upper arm to form an effective pressurized area.

[0036] The pressure range of the airbag 21 is controlled at 15-20kPa. By applying moderate pressure to the upper arm, the veins are filled, making blood collection easier. The pressure position of the airbag 21 can be flexibly adjusted according to the patient's body shape and specific blood collection needs:

[0037] You can choose to apply pressure at the proximal end of the upper arm (near the shoulder), which is suitable for routine blood collection;

[0038] The distal end of the upper arm (near the cubital fossa) can be pressurized, which is suitable for blood collection at special parts;

[0039] It can also be used to apply pressure on the wrist and is suitable for some bedside blood collection scenarios.

[0040] During use, the airbag 21 will avoid the venous puncture point to ensure that it does not affect the puncture operation and complies with the nursing process specifications.

[0041] Specifically, the gas conduit 22 is a flexible hose structure, which is used to connect the upper arm automatic pressurization airbag 21 and the micro air pump in the host to realize the gas passage for pressurization and decompression.

[0042] The gas conduit 22 is made of highly elastic silicone or TPU tubing, offering excellent bending resistance, ensuring it will not leak, fold, or clog during multiple operations. A built-in one-way valve ensures unidirectional gas flow, preventing backflow or leakage.

[0043] Through the gas conduit 22, the micro air pump can quickly deliver gas to the airbag 21 to achieve automatic pressurization; after the blood collection is completed, the gas is exhausted through the conduit, the pressure is quickly reduced, and the hemostasis state is released.

[0044] Specifically, the disposable pad 31 is used to isolate the patient's skin from the surface of the flexible support pad 10, ensuring that each patient uses it independently to prevent cross infection.

[0045] The drape 31 is made of medical nonwoven fabric, which is soft and skin-friendly, with excellent liquid absorption and breathability. It effectively absorbs blood and sweat, preventing contamination of the drape. The drape 31 is approximately 40 cm long and its width matches the upper surface of the flexible support layer 10, fully covering the patient contact area.

[0046] The pad 31 is released from the reserve reel 32, guided by the guide roller 33, and laid flat on the surface of the flexible support cushion layer 10, ensuring that the surface is clean and hygienic each time it is used.

[0047] Specifically, the reserve reel 32 is used to store unused disposable towels 31 . The reel has a hollow cylindrical structure and is located at the front end of the flexible support pad 10 .

[0048] The structural features of the reserve reel 32 are as follows:

[0049] Spindle installation: The reserve reel 32 is supported by bearings at both ends and can rotate freely to ensure smooth release of the pad.

[0050] Accommodating capacity: One roll of pad can be replaced more than 20 times continuously, meeting high-frequency blood collection operations and reducing the frequency of replacement.

[0051] Material selection: The reel can be made of ABS plastic or medical-grade polypropylene, which is lightweight, easy to replace, and wear-resistant.

[0052] Protective structure: A transparent protective shell can be provided around the storage reel 32 to prevent contamination and debris from being drawn in, thereby ensuring the hygiene of the pad.

[0053] During the nursing process, the reserve reel 32 releases the pad 31 synchronously according to the operation requirements, and is pulled by the guide roller 33 and gradually laid flat on the upper surface of the flexible support cushion layer 10.

[0054] Specifically, the guide roller 33 is located at the outlet of the reserve reel 32 and is installed on the front side of the flexible support pad 10 to guide the pad 31 to be laid flat.

[0055] Roller material: Made of medical-grade silicone or high-molecular polyurethane, it has good softness and ensures that it will not damage the pad or cause indentations.

[0056] Roller shaft support: The roller is fixed by the roller shaft, rotates sensitively, has a self-lubricating structure, rotates smoothly, and operates with ease.

[0057] Function:

[0058] Guide the mat 31 to be laid flat along a prescribed path;

[0059] Ensure the pad has moderate tension to prevent curling and wrinkling;

[0060] Keep the pad neat and spread out to help the patient lay their upper limbs flat.

[0061] Through the guide rollers 33, the pad 31 can be automatically flattened when replaced, ensuring efficient and standardized operation.

[0062] Specifically, the operation control area 41 is located at the upper right of the flexible support pad 10, facing the nursing staff, so as to facilitate direct operation control.

[0063] Structural composition:

[0064] LCD display area:

[0065] Display the current pressurization pressure value of the airbag 21;

[0066] Display device power and working status;

[0067] Prompt the status of the mat replacement (such as the number of remaining sheets, whether the reserve scroll 32 needs to be replaced);

[0068] Display alarm information (such as abnormal air pressure and power failure alarm).

[0069] Button area:

[0070] Start the pressurization button: control the micro air pump to start and inflate the airbag 21;

[0071] Decompression button: controls the exhaust of the airbag 21 and releases the pressurized state;

[0072] Replacement button: controls the replacement process of the mat 31, releases the new mat and completes the laying.

[0073] Features:

[0074] Chinese interface, easy to operate;

[0075] Touch buttons or physical buttons are available to adapt to different scenarios;

[0076] Equipped with sound and light prompts, which will emit a sound and light prompts after the operation is completed;

[0077] Support manual and automatic working mode switching;

[0078] It has a fault self-checking function and automatically notifies the nursing staff of abnormal situations.

[0079] The operation control area 41 simplifies the nursing operation process, reduces the winding and removal process of the traditional manual tourniquet, and significantly improves the blood collection efficiency.

[0080] Specifically, the power supply interface 51 is located at the lower right side of the device, providing the device with multiple power supply modes to ensure continuous operation of the device in multiple scenarios.

[0081] Structural features:

[0082] Interface type:

[0083] Standard DC jack (such as 5V / 12V power supply interface);

[0084] USB Type-C or Micro USB interface, easy to connect to universal power adapter.

[0085] Function:

[0086] Plug-in power supply, meeting the needs of continuous use at fixed blood collection locations in outpatient clinics;

[0087] Compatible with charging function, it can be charged simultaneously when powered to ensure battery life in mobile blood collection scenarios.

[0088] Appearance design:

[0089] Equipped with a dust-proof protective cover to prevent dust accumulation on the socket;

[0090] The outer ring of the jack is equipped with a waterproof ring to meet the hygiene requirements of medical scenarios.

[0091] Specifically, the power switch 52 is located on one side of the power supply interface 51 and adopts a physical button design.

[0092] Function:

[0093] Control the opening and closing of the overall power supply of the equipment;

[0094] After powering on, the device enters standby mode and the LCD display area lights up.

[0095] Button type:

[0096] Waterproof design, supports wet hand operation;

[0097] With switch mark, easy to identify;

[0098] The button rebound force is moderate and the operation is comfortable.

[0099] Specifically, the indicator light 53 is located on one side of the power switch 52 and displays the working status of the device.

[0100] Light status:

[0101] Green light is always on: the device is working normally;

[0102] Yellow light flashes: low battery or standby mode;

[0103] The red light is always on or flashing: equipment failure or abnormal alarm (such as abnormal airbag pressure, pad missing alarm).

[0104] The indicator light 53 enables the nursing staff to quickly understand the status of the device during operation, thereby improving the convenience and safety of use.

[0105] During actual use, the blood collection auxiliary pillow of the present invention has a simple and standardized operation process, can effectively reduce the nursing workload, and ensure operational safety.

[0106] The typical workflow is as follows:

[0107] 1. Device startup

[0108] The nurse places the blood collection auxiliary pillow on the blood collection bed, blood collection chair, or mobile blood collection vehicle, connects the power supply interface 51, and presses the power switch 52 to start the device. The indicator light 53 lights up, and the LCD display area (operation control area 41) indicates that the device has entered standby mode, displays the battery level, the number of remaining pillows, and the system self-test status.

[0109] 2. Patient Position

[0110] The patient's upper arm is placed flat on the upper surface of the flexible support pad 10, with the arm naturally stretched to maintain a comfortable posture. The disposable pad 31 is laid flat on the surface of the support pad to ensure that the arm is isolated from the device body to avoid cross infection.

[0111] 3. Automatic pressurization operation

[0112] The nurse presses the "Start Pressurization" button in the operation control area 41. The micro air pump starts working, and the gas is input into the upper arm automatic pressurization airbag 21 through the gas conduit 22. The airbag gradually expands to form an annular covering pressure.

[0113] The LCD displays the current pressure in the balloon in real time. When the balloon reaches the preset pressure (15–20 kPa), the pump automatically stops and the pressure remains constant, ensuring the vein is fully filled for easy blood collection and puncture.

[0114] 4. Blood collection operation

[0115] The nurse completes the venous blood collection operation under the pressurized state. Since the pressurized area avoids the puncture site, the airbag 21 will not interfere with the positioning and insertion of the puncture needle, ensuring that the blood collection is carried out smoothly.

[0116] 5. Automatic decompression operation

[0117] After the blood sampling is completed, the nurse presses the "decompression" button in the operation control area 41, and the air bag 21 is exhausted through the gas conduit 22 to restore the normal pressure state, and the patient's arm can be moved away naturally.

[0118] 6. Replacement of mattress pads

[0119] Press the "Change Pad" button, the reserve reel 32 releases a new pad 31, which is evenly laid on the upper surface of the flexible support cushion 10 through the guide roller 33, completing the disposable pad replacement operation, avoiding manual replacement operations, and reducing cross contamination.

[0120] 7. Cycle Preparation

[0121] After the new pad is laid, the device returns to standby mode, and the operation control area 41 displays "ready for next operation". The nurse can receive the next patient and repeat the blood collection operation.

[0122] Application Examples

[0123] Thousands of venous blood draws are performed daily. Traditionally, nurses must repeatedly apply and remove tourniquets while simultaneously changing drapes. This intense workload can lead to operator fatigue and the risk of cross-infection.

[0124] After using the blood collection auxiliary pillow of the present invention, the nurse places the patient's upper arm on the flexible support cushion layer 10, and starts pressurization with one button through the operation control area 41. After the pressurization is completed, there is no need to manually remove the tourniquet, and the "decompression" button can be directly pressed to complete the decompression operation.

[0125] After blood collection is completed, the pad 31 is automatically replaced by the reserve reel 32 and guide roller 33, which is quick to operate and eliminates the tedious process of manually changing the pad. It is easier for nursing staff to operate and the process is standardized, significantly improving nursing efficiency.

[0126] The blood collection auxiliary pillow of the present invention has the following significant beneficial effects:

[0127] Automatic pressurization: Automatic hemostasis and pressurization are achieved through the upper arm automatic pressurization airbag 21, which reduces the steps of manual tourniquet wrapping by nurses and reduces labor intensity;

[0128] Automatic decompression: The airbag 21 can be quickly deflated through the control of the operation control area 41, and the pressurization is automatically released after the blood collection is completed, thus avoiding the problem of blood backflow caused by forgetting to remove the tourniquet;

[0129] Automatic replacement of the pad: The pad 31 is released from the reserve reel 32 and laid flat by the guide roller 33. The pad is automatically replaced after the blood collection is completed, reducing the risk of cross infection;

[0130] Applicable in multiple scenarios: Applicable to outpatient clinics, inpatient wards, physical examination centers, and mobile blood collection vehicles, meeting the needs of different nursing scenarios;

[0131] Easy to operate: The operation control area 41 integrates display and buttons, and cooperates with the power supply interface 51, power switch 52, and indicator light 53. The operation is intuitive and the prompts are clear, which is suitable for nursing staff at all levels;

[0132] Save nursing time: The blood collection process is standardized, significantly reducing the number of operating steps, improving nursing efficiency, and optimizing patient experience.

[0133] To sum up, the blood collection auxiliary pillow with integrated automatic pressurization and pad replacement functions of the present invention realizes the integrated blood collection auxiliary operations of automatic pressurization, automatic decompression, and automatic pad replacement through the coordinated work of the flexible support pad layer 10, the upper arm automatic pressurization airbag 21, the gas duct 22, the disposable pad 31, the reserve reel 32, the guide roller 33, the operation control area 41, the power supply interface 51, the power switch 52, and the indicator light 53, and has good practicality and promotion value.

[0134] In other embodiments, the present invention may further include the following structure:

[0135] 1. Recycling reel and automatic recycling mechanism: used to automatically reel used disposable towels into the storage area, preventing discarded towels from remaining on the surface of the mat and reducing the risk of cross contamination.

[0136] 2. Exhaust control structure: A one-way exhaust valve or an electronically controlled exhaust device is set to achieve rapid exhaust after pressurization, ensuring the safety and efficiency of the automatic decompression process.

[0137] 3. Airbag pressure sensing and closed-loop control function: A pressure sensor is set inside the gas tube or the host to detect the air pressure in the upper arm automatic pressurization airbag in real time to achieve constant pressure control.

[0138] 4. Pad remaining detection and alarm function: Use photoelectric sensors or induction wheels to monitor the remaining number of pads in the reserve reel in real time, and remind nursing staff to replace them in time.

[0139] 5. Detachable and quick-cleaning design: The flexible support cushion, pressurized airbag, and scroll assembly adopt a quick-disassembly structure, which is convenient for disassembly, cleaning, and high-temperature disinfection, meeting hospital disinfection and sterilization standards.

[0140] 6. Data communication function: Through Bluetooth or WiFi communication module, the nursing operation data can be uploaded to the hospital nursing management system to realize the information management of the nursing process.

[0141] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A blood collection auxiliary pillow with integrated automatic pressurization and pad replacement functions, characterized in that: include: A flexible support cushion layer is used to support the patient's upper limbs, and a disposable pad is provided on the surface of the flexible support cushion layer; An upper arm automatic pressurization airbag is arranged inside or above the flexible support cushion layer and is used to surround and pressurize the patient's upper limb. The upper arm automatic pressurization airbag is connected to a micro air pump through a gas conduit; A towel replacement mechanism includes a reserve reel and a guide roller, wherein the reserve reel is used to store unused disposable towels, and the guide roller is used to guide the towels to be laid flat on the surface of the flexible support cushion layer; An operation control area, including a liquid crystal display area and a function key area, for controlling the inflation and deflation of the upper arm automatic pressurization airbag, as well as the replacement of the pad; The power supply interface, power switch and indicator light are used for power access, start and stop control and working status indication of the equipment respectively.

2. The blood collection auxiliary pillow according to claim 1, characterized in that: The upper arm automatic pressurization airbag is made of thermoplastic polyurethane material, which is flexible and wear-resistant and suitable for multiple inflation and deflation cycles; its working pressure is set at 15kPa to 20kPa; its structure is a wrap-around long strip, forming a ring-shaped pressurization area around the patient's upper arm.

3. The blood collection auxiliary pillow according to claim 1, characterized in that: The reserve reel in the pad replacement mechanism is used to store continuously arranged disposable pads, and the length of the pads is set to support at least 20 consecutive replacements; the disposable pads are made of medical-grade non-woven fabric, are soft and skin-friendly, and have liquid absorption and breathability, and their size matches the surface of the flexible support cushion layer.

4. The blood collection auxiliary pillow according to any one of claims 1 to 3, characterized in that: The guide roller is made of medical silica gel or high-molecular polyurethane, is supported and installed by a bearing, has a self-lubricating function, and is used to guide the pad to be laid flatly to prevent slipping or wrinkling.

5. The blood collection auxiliary pillow according to any one of claims 1 to 4, characterized in that: The LCD screen in the operation control area is used to display the following content: real-time airbag pressure value, current operation mode, device power status, remaining number of pads and fault prompt information; the function key area includes: start pressurization button, decompression button and pad replacement button, which are used to control airbag inflation, exhaust and pad replacement operations respectively.

6. The blood collection auxiliary pillow according to any one of claims 1 to 5, characterized in that: The power supply interface is a USB interface or a DC jack interface, which has the function of switching between plug-in power supply and charging mode; the power switch is used to control the start and stop of the whole machine; the indicator light is used to indicate the operating status of the equipment, including green for normal operation, yellow for standby or low power, and red for fault alarm.

7. The blood collection auxiliary pillow according to any one of claims 1 to 6, characterized in that: The flexible support cushion layer, the upper arm automatic pressurizing airbag, the reserve reel and the guide roller are all detachably connected to the main body shell through a snap or plug-in structure, so as to facilitate disassembly, cleaning and high-temperature disinfection.

8. The blood collection auxiliary pillow according to any one of claims 1 to 7, characterized in that: It also includes a recycling reel and an automatic recycling mechanism; the recycling reel is used to recycle the used disposable towel; the automatic recycling mechanism includes a micro drive motor and a transmission structure, which drives the recycling reel to rotate synchronously to realize automatic recycling of the towel when it is replaced.

9. The blood collection auxiliary pillow according to any one of claims 1 to 8, characterized in that: It also includes an airbag pressure monitoring and closed-loop control module, which includes a pressure sensor and a control unit. The pressure sensor is used to collect the internal pressure data of the upper arm automatic pressurization airbag in real time. The control unit adjusts the working state of the micro air pump according to the collected data to achieve constant pressure control.

10. The blood collection auxiliary pillow according to any one of claims 1 to 9, characterized in that: It also includes a data communication module, which is connected to the hospital nursing information system via Bluetooth, WiFi or other wireless communication methods, and is used to upload the equipment's operating data, pressurization records and pad replacement records to achieve digital management of nursing information.

Images