Radial artery blood sampling pillow

Abstract

The utility model relates to the technical field of medical instruments, in particular to a radial artery blood sampling pillow which comprises a pillow body. The fixing plate is arranged in the pillow body and is fixedly connected with the pillow body; the collecting unit is arranged in the middle of the pillow body, first through holes are formed in the two sides of the collecting unit, and the collecting unit is used for placing arms of a patient; the guide units are arranged on the two sides of the fixing plate, each guide unit comprises a guide part, a limiting part and a sliding propelling part, one end of each guide part extends out of the pillow body, each limiting part is located on one side of the corresponding guide part and located on the side, close to the outside of the pillow body, of the corresponding guide part, and one end of each sliding propelling part is located in the middle of the corresponding guide part and rotationally connected with the corresponding guide part; the fastening unit is arranged on the fixing plate, one end of the fastening unit penetrates through the first through hole, the other end of the fastening unit is connected with the sliding pushing part, the arm of a patient can be fastened through the guiding unit and the fastening unit, and medical accidents caused by arm shaking in the blood sampling process are prevented.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a radial artery blood collection pillow. Background Technology

[0002] The radial artery blood collection pillow is a medical assistive device primarily used in hospitals, clinics, and emergency settings to assist doctors or nurses in performing radial artery blood collection. The radial artery, located in the wrist, is one of the most easily accessible and suitable sites for arterial blood collection. In actual blood collection, the procedure typically lasts several minutes. However, due to the radial artery's thinness and the presence of surrounding nerves and muscles, such as the first dorsal interosseous muscle, successful blood collection can be challenging for inexperienced operators. This can cause soreness in the patient's arm, leading to involuntary slight shaking and further complicating the process, potentially resulting in failed collection or damage to surrounding tissues.

[0003] Therefore, there is an urgent need for a radial artery blood collection pad to solve the problems existing in the current technology. Utility Model Content

[0004] In view of this, the present invention proposes a radial artery blood collection pillow, which aims to solve the problem that existing blood collection pillows do not have arm fixation.

[0005] This utility model provides a radial artery blood collection pad, comprising:

[0006] Pillow body;

[0007] A fixing plate is disposed inside the pillow body and is fixedly connected to the pillow body;

[0008] A collection unit is located in the middle of the pillow body. The collection unit has first through holes on both sides and is used to place the patient's arm.

[0009] A guide unit is disposed on both sides of the fixed plate. The guide unit includes a guide part, a limiting part, and a sliding propulsion part. One end of the guide part extends out of the pillow body. The limiting part is located on one side of the guide part and is located on the side of the guide part closer to the pillow body. One end of the sliding propulsion part is located in the middle of the guide part and is rotatably connected to the guide part.

[0010] A fastening unit is disposed on the fixed plate, with one end of the fastening unit passing through the first through hole and the other end of the fastening unit connected to the sliding propulsion part.

[0011] Furthermore, the guide portion includes a guide rod, a guide block, and a first fixing block. The guide block is disposed on one side of the pillow body and is fixedly connected to the guide rod. The first fixing block is fixedly connected to the fixing plate, and the guide rod is inserted into the first fixing block.

[0012] Furthermore, the limiting part includes a limiting frame, a limiting gear, and a first limiting block. The limiting gear is sleeved on one side of the guide rod. The upper inner wall of the limiting frame is rotatably connected to the first limiting block. The other end of the limiting block is attached to the limiting gear, and a limiting strip is formed on the surface of the limiting block at the position corresponding to the limiting gear. The limiting strip meshes with the limiting gear.

[0013] Furthermore, the limiting part also includes a limiting rod and a second limiting block. One end of the limiting rod is inserted into the rotatable connection between the limiting frame and the first limiting block, and the other end of the limiting rod is located on the outside of the pillow body. The second limiting block is fixedly connected to the other end of the limiting rod.

[0014] Furthermore, the sliding propulsion part includes a second fixing block and a propulsion block. The second fixing block is fixedly connected to the fixing plate, and both sides of the second fixing block are provided with sliding grooves, and the propulsion block is slidably connected to the inner surface of the sliding groove.

[0015] Furthermore, the sliding propulsion part also includes a rotating sleeve and a connecting bar. The rotating sleeve is sleeved on the guide rod and is rotatably connected to the connecting bar. The other end of the connecting bar is connected to one side of the propulsion block.

[0016] Furthermore, the fastening unit includes a fastening plate and a fastening plate. The fastening plate is fixedly connected to the push block, and the fastening plate is fixedly connected to the other side of the fastening plate. The fastening plate is semi-circular, and the inner surface of the fastening plate is provided with anti-slip texture.

[0017] Furthermore, the acquisition unit includes an acquisition slot, which is disposed on the upper side of the middle part of the pillow body.

[0018] Furthermore, the acquisition unit also includes an inclined groove, and an inclined groove is provided on the side of the pillow body away from the acquisition groove.

[0019] Furthermore, the pillow body also includes a connecting strap, which is disposed above the collection slot, and the two ends of the connecting strap are respectively fixedly connected to the pillow body on both sides of the collection slot.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a collection unit on the pillow body, when blood needs to be collected, the person being collected only needs to place their arm on the collection unit. Compared with the traditional radial artery blood collection, which often requires medical staff to manually adjust the angle of the patient's wrist, the collection unit allows medical staff to perform blood collection operations at the optimal angle, making it easier to find blood vessels and improve the success rate of blood collection. Meanwhile, the pillow's support allows the patient's wrist to be in a naturally relaxed state, reducing tension and discomfort during blood collection. The guide section then drives the sliding propulsion section to move the fastening unit, which secures the arm. When the fastening unit is pushed to the appropriate position, the limiting section restricts the guide section, preventing displacement of the fastening unit and avoiding shaking caused by arm soreness from prolonged blood collection. This maintains stability during radial artery blood collection, improving not only the accuracy and success rate of blood collection but also enhancing patient comfort and safety. Arm fixation reduces needle displacement caused by involuntary patient movement, thus avoiding the risk of accidental needle slippage or damage to surrounding tissues. The fastening unit and guide section can be flexibly adjusted to accommodate individual patient differences, ensuring optimal support and fixation for each patient. Attached Figure Description

[0021] Figure 1 An overall view of the radial artery blood collection pad provided in this embodiment of the utility model;

[0022] Figure 2 A side view of the fixing plate inside the radial artery blood collection pad provided in an embodiment of this utility model.

[0023] The components are as follows: 1. Pillow body; 2. Fixing plate; 3. Collection unit; 310. Collection groove; 320. Inclined groove; 4. Guide unit; 410. Guide part; 4101. Guide rod; 4102. Guide block; 4103. First fixing block; 420. Limiting part; 4201. Limiting frame; 4202. Limiting gear; 4203. First limiting block; 4204. Limiting rod; 4205. Second limiting block; 430. Sliding propulsion part; 4301. Second fixing block; 4302. Propulsion block; 4303. Rotating sleeve; 4304. Connecting strip; 5. Fastening unit; 510. Fastening plate; 520. Fastening plate; 6. Connecting belt. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] See Figure 1-2 As shown, this embodiment provides a radial artery blood collection pillow, including: a pillow body 1;

[0029] The fixing plate 2 is set inside the pillow body 1 and is fixedly connected to the pillow body 1;

[0030] The acquisition unit 3 is located in the middle of the pillow body 1. The acquisition unit 3 has first through holes on both sides and is used to place the patient's arm.

[0031] The guide unit 4 is disposed on both sides of the fixed plate 2. The guide unit 4 includes a guide part 410, a limiting part 420 and a sliding pushing part 430. One end of the guide part 410 extends to the outside of the pillow body 1. The limiting part 420 is located on one side of the guide part 410 and is located on the side of the guide part 410 closer to the outside of the pillow body 1. One end of the sliding pushing part 430 is located in the middle of the guide part 410 and is rotatably connected to the guide part 410.

[0032] The fastening unit 5 is mounted on the fixed plate 2, with one end of the fastening unit 5 passing through the first through hole and the other end of the fastening unit 5 connected to the sliding push part 430.

[0033] Specifically, a collection unit 3 is provided in the middle of the outer surface of the pillow body 1, and a fixing plate 2 is provided in the cavity inside the pillow body 1. A guide unit 4 and a fastening unit 5 are provided on the fixing plate 2. When it is necessary to collect blood from the patient, the patient only needs to place his arm on the collection unit 3. Then, by controlling the guide part 410, the guide part 410 drives the sliding propulsion part 430 to move, thereby pushing the fastening unit 5 through the first through hole to limit the patient's arm. When the fastening unit 5 moves to the appropriate position, the guide part 410 is limited by the control limiting part 420 to prevent the guide part 410 from moving, which in turn causes the fastening unit 5 to move, making it easier for medical staff to collect blood from the patient.

[0034] Understandably, traditional radial artery blood sampling typically requires medical staff to manually adjust the patient's wrist angle, which not only increases the complexity of the operation but may also lead to misdiagnosis. In this embodiment, however, the collection unit 3 allows the patient's wrist to naturally be in an optimal angle, making it easier for medical staff to locate the radial artery. Furthermore, the guide unit 4 and the fastening unit 5 ensure the stability of the lancet, reducing the risk of lancet displacement or slippage due to involuntary arm movement. This ensures the continuity and accuracy of the blood sampling process when prolonged or continuous sampling is required. Patient comfort during the blood sampling process is a crucial factor affecting the experience. Traditional methods often require patients to maintain a fixed wrist position for extended periods, leading to arm pain and involuntary movement. The radial artery blood sampling cushion, through its soft material and collection unit 3, provides a comfortable and stable placement platform for the patient. The patient simply places their arm on the collection unit 3, naturally creating an angle conducive to radial artery exposure, reducing wrist tension and discomfort. Meanwhile, the precise adjustment of the fastening unit 5 and the fixing effect of the limiting part 420 prevent involuntary movement caused by arm pain, further improving patient comfort. For medical staff, ease of operation is a crucial factor in selecting medical equipment. The radial artery blood collection pad not only simplifies the operation but also improves work efficiency. One end of the guide part 410 extends outside the column, facilitating manipulation by medical staff. The synergistic effect of the guide part 410, the limiting part 420, and the sliding propulsion part 430 allows the fastening unit 5 to quickly and accurately fix the patient's arm. Medical staff can easily adjust the fastening unit 5 by manipulating the guide part 410, eliminating the need for complex fixing devices or multiple attempts, saving time and reducing the workload of medical staff, making the blood collection process more efficient and smooth. In actual blood collection, individual differences among patients lead to different requirements for arm fixation devices. Both the fastening unit 5 and the collection unit 3 offer a degree of adjustability. The fastening unit 5 can be flexibly adjusted according to the thickness and position of the patient's arm, ensuring the most suitable fixation effect for each patient and improving its universal applicability. During blood collection, unexpected risks are a concern for both medical staff and patients. The fastening unit 5 and the limiting part 420 reduce the risk of needle displacement or slippage due to involuntary arm movement. The adjustment of the fastening unit 5 and the fixation of the limiting part 420 ensure the stability of the patient's arm during blood collection, improving the safety of the procedure. Furthermore, the collection unit 3 reduces pressure on the patient's wrist, preventing nerve damage or muscle fatigue caused by prolonged fixation, further reducing the risks during blood collection.

[0035] In some embodiments of this application, the guide part 410 includes a guide rod 4101, a guide block 4102 and a first fixing block 4103. The guide block 4102 is disposed on the outer side of the pillow body 1 and is fixedly connected to the guide rod 4101. The first fixing block 4103 is fixedly connected to the fixing plate 2 and the guide rod 4101 is inserted into the first fixing block 4103.

[0036] Specifically, the guide block 4102 is fixedly connected to the guide rod 4101 on the outer surface of one side of the pillow body 1. There are two first fixing blocks 4103, both of which are rotatably connected to the guide rod 4101. The first fixing block 4103 is used to support and fix the guide rod 4101. When it is necessary to push and tighten the fastening unit 5, simply rotate the guide block 4102, and then the guide block 4102 drives the guide rod 4101 to rotate. The guide rod 4101 drives the sliding push part 430 to push the fastening unit 5 to move towards the patient's arm through the first through hole.

[0037] Understandably, the guide rod 4101 is the core component of the guide section 410, and its main function is to guide the movement of the sliding propulsion section 430, ensuring that the fastening unit 5 can accurately fix the patient's arm. The guide block 4102 is located on the outer surface of the pillow body 1 and is fixedly connected to the guide rod 4101. The guide block 4102 allows medical personnel to easily manipulate the guide rod 4101, adjusting the fastening unit 5 by rotating the guide block 4102. The guide block 4102 is typically in the form of a handle or knob, making it easy for medical personnel to grip and apply force. There are two first fixing blocks 4103, both rotatably connected to the guide rod 4101, used to support and fix the guide rod 4101. The design of the first fixing blocks 4103 ensures the stability and linear movement of the guide rod 4101 within the pillow body 1, preventing the guide rod 4101 from shifting or twisting during movement. The coordinated design of the guide block 4102 and the guide rod 4101 makes the propulsion and fixing process of the fastening unit 5 more precise. Medical staff only need to rotate the guide block 4102 to drive the sliding propulsion part 430 to push the fastening unit 5 through the guide rod 4101, ensuring that the patient's arm remains in a fixed position during radial artery blood collection. This reduces the risk of needle displacement or slippage due to involuntary arm movement, improving the accuracy and success rate of blood collection. The guide block 4102 is located on the outside of the occipital body 1 for easy operation by medical staff. By rotating the guide block 4102, the angle of the guide rod 4101 can be adjusted, thereby changing the direction and force of the fastening unit 5's advancement. This allows medical staff to find the most suitable fixation position and force according to the patient's specific situation and blood collection needs, further improving the accuracy and success rate of blood collection. The guide part 410 reduces the force required for medical staff to fix the patient's arm, avoiding pain caused by excessive pressure. The patient only needs to place their arm lightly on the collection unit 3, and the fastening unit 5 can be advanced and fixed by rotating the guide block 4102. The entire process puts less pressure on the patient's arm, reducing pain during blood collection. Medical staff can easily advance and fix the fastening unit 5 with a simple rotation. This simple and intuitive operation not only saves medical staff time and energy but also reduces the risk of misoperation due to complex operations. Medical staff can focus more time and energy on the blood collection procedure itself, improving work efficiency and reducing the risk of the guide rod 4101 shifting or twisting during movement, thus improving operational safety. The limiting part 420 further prevents the fastening unit 5 from shifting in the fixed position, ensuring the stability of the patient's arm and the safety of the blood collection process.

[0038] In some embodiments of this application, the limiting part 420 includes a limiting frame 4201, a limiting gear 4202, and a first limiting block 4203. The limiting gear 4202 is sleeved on one side of the guide rod 4101. The upper inner wall of the limiting frame 4201 is rotatably connected to the first limiting block 4203. The other end of the first limiting block 4203 is attached to the limiting gear 4202, and a limiting strip is formed on the surface of the first limiting block 4203 corresponding to the position of the limiting gear 4202. The limiting strip meshes with the limiting gear 4202.

[0039] In some embodiments of this application, the limiting part 420 further includes a limiting rod 4204 and a second limiting block 4205. One end of the limiting rod 4204 is inserted into the rotatable connection between the limiting frame 4201 and the first limiting block 4203, and the other end of the limiting rod 4204 is located on the outside of the pillow body 1. The second limiting block 4205 is fixedly connected to the other end of the limiting rod 4204.

[0040] Specifically, the limiting frame 4201 is located on one side of the guide rod 4101, close to the guide block 4102. The inner wall of the limiting frame 4201 is rotatably connected to the first limiting block 4203. The limiting rod 4204 is inserted at the rotatable connection between the limiting frame 4201 and the first limiting block 4203, and passes through the limiting frame 4201 and the first connecting block. The limiting gear 4202 is sleeved on the guide rod 4101 and meshes with the first limiting block 4203. When it is necessary to limit the guide rod 4101, only the second limiting block 4205 needs to be rotated, which in turn drives the first limiting block 4203 to rotate, so that it fits against the limiting gear 4202. The limiting strip on the surface of the first limiting block 4203 meshes with the limiting gear 4202, thereby restricting the rotation of the guide rod 4101.

[0041] Understandably, the limiting part 420 achieves the limiting of the guide rod 4101 through the meshing mechanism of the limiting gear 4202 and the first limiting block 4203. When the guide rod 4101 drives the fastening unit 5 to the appropriate position, by rotating the second limiting block 4205, the limiting strip of the first limiting block 4203 will mesh with the limiting gear 4202, restricting the rotation of the guide rod 4101, ensuring the stability of the fastening unit 5 in the fixed position, avoiding the risk of blood collection needle displacement or slippage due to involuntary arm movement, and improving the accuracy and success rate of blood collection. The tight and accurate meshing of the first limiting block 4203 and the limiting gear 4202 ensures the reliable fixing effect of the guide rod 4101. Even during a long blood collection process, if the patient's arm moves involuntarily due to soreness or fatigue, the limiting part 420 can prevent the displacement of the fastening unit 5, maintain the stability of the patient's arm, and ensure the continuity and safety of the blood collection process. The rotation control mechanism of the limiting part 420 is intuitive. Medical staff only need to rotate the second limiting block 4205 to limit the guide rod 4101, which not only saves time but also reduces the risk of misoperation caused by complex operations. Medical staff can focus more on the blood collection operation itself, improving work efficiency and blood collection success rate. The meshing mechanism of the limiting gear 4202 and the first limiting block 4203 ensures that the fastening unit 5 is subjected to uniform force during the advancement process. The patient's arm will not feel local pressure or discomfort during the fixation process, improving the comfort of the blood collection process. This uniform force design not only reduces patient discomfort but also avoids nerve damage and muscle fatigue caused by local pressure. By gradually rotating the second limiting block 4205, medical staff can gradually adjust the angle of the first limiting block 4203 to achieve progressive limiting of the guide rod 4101, allowing medical staff to operate more calmly and make flexible adjustments according to the patient's specific situation and blood collection needs. This avoids patient discomfort and blood collection failure caused by excessive or too rapid fixation. The limiting part 420 allows medical staff to make flexible adjustments based on the specific position and thickness of the patient's arm. By rotating the second limiting block 4205, different angles and forces of limiting can be achieved, ensuring that each patient receives the most suitable fixation effect.

[0042] In some embodiments of this application, the sliding propulsion part 430 includes a second fixing block 4301 and a propulsion block 4302. The second fixing block 4301 is fixedly connected to the fixing plate 2, and both sides of the second fixing block 4301 are provided with sliding grooves, and the inner surface of the sliding grooves is slidably connected to the propulsion block 4302.

[0043] In some embodiments of this application, the sliding propulsion part 430 further includes a rotating sleeve 4303 and a connecting bar 4304. The rotating sleeve 4303 is sleeved on the guide rod 4101, and the rotating sleeve 4303 is rotatably connected to the connecting bar 4304. The other end of the connecting bar 4304 is connected to one side of the propulsion block 4302.

[0044] Specifically, the second fixing block 4301 is fixed on the fixing plate 2, and has grooves on both sides. Two push blocks 4302 are installed in the grooves. The outer surfaces of the two push blocks 4302 are connected to connecting strips 4304. The other end of the connecting strips 4304 is rotatably connected to a rotating sleeve 4303. The rotating sleeve 4303 is fitted on the guide rod 4101. The arc surface of the guide rod 4101 has threads with opposite directions. Both ends of the arc surface of the guide rod 4101 are threaded with rotating sleeves 4303. When the guide rod 4101 rotates, it drives the rotating sleeve 4303 to move, and then the connecting strips 4304 push the push block to move. Then the push block drives the fastening unit 5 to come closer to the patient's arm through the first through hole.

[0045] Understandably, when the guide rod 4101 rotates, the threaded drive on its arc surface drives the rotating sleeve 4303 to move on the guide rod 4101. The rotating sleeve 4303 is connected to the connecting bar 4304, which pushes the push block 4302 to move within the groove. Since the other end of the push block 4302 is connected to the fastening unit 5, the displacement of the push block 4302 directly causes the fastening unit 5 to move closer to the patient's arm, thereby stabilizing and fixing the arm. Throughout the process, the rotation of the guide rod 4101, the movement of the rotating sleeve 4303, and the thrust of the connecting bar 4304 complement each other, providing an efficient, flexible, and precise arm fixation mechanism. Unlike traditional blood collection pads that rely solely on the fixation device, this design achieves adjustment through the sliding push block 4302 and the threaded guide, making the fixation of the patient's arm more stable and comfortable, while reducing problems such as insufficient precision, inconvenient operation, and complex adjustment inherent in traditional designs. By precisely controlling the position of the advance block 4302, medical staff can adjust the position of the patient's arm without disturbing the patient, ensuring that the needle accurately enters the blood vessel during blood collection. This is especially crucial in cases of complex patient body shapes or specific physiological conditions, where precise arm positioning directly determines the success rate of blood collection. Furthermore, with the sliding advance unit 430, the patient's arm position is not affected by slight movements, which in traditional equipment often leads to operational failures due to involuntary shaking, swaying, or muscle tension. This eliminates the need for repeated adjustments, reducing pain and trauma and improving the overall patient experience. In traditional blood collection methods, medical staff often need to use complex mechanical devices or manual operation to fix the patient's arm. However, the combination of the rotating sleeve 4303 and the guide rod 4101 allows for quick adjustment of the arm position without repeated equipment adjustments or manual repositioning of the patient.

[0046] In some embodiments of this application, the fastening unit 5 includes a fastening plate 510 and a fastening plate 520. The fastening plate 520 is fixedly connected to the push block 4302, and the fastening plate 510 is fixedly connected to the other side of the fastening plate 520. The fastening plate 510 is semi-circular, and the inner surface of the fastening plate 510 is provided with anti-slip texture.

[0047] Understandably, ensuring patient stability throughout medical procedures, especially blood collection, is crucial for success. Traditional fixation methods often rely on external pressure or over-fixation, which can cause patient discomfort and affect the accuracy of the procedure. The semi-circular structure of the fastening plate 510 not only provides ample contact area but also wraps around the patient's arm, ensuring that the arm does not shift due to movement or posture adjustments during blood collection. Compared to other traditional fixation methods, the semi-circular design helps distribute applied pressure, reducing excessive local stress and avoiding discomfort caused by excessive compression. The inner surface of the fastening plate 510 has anti-slip textures, increasing friction between the patient's arm and the fastening unit 5, further enhancing fixation stability. The anti-slip textures reduce slippage between the fastening plate 510 and the patient's skin, especially when the patient's arm moves or shifts slightly. The anti-slip effect prevents the fastening plate 510 from losing its fixation function, ensuring the arm remains in the correct fixed position. This not only improves the accuracy of blood collection but also reduces medical risks caused by instability. The fastening plate transmits the force applied by the push block 4302 to the fastening plate 510. The fastening plate 520 structurally ensures a good connection between the two, can withstand the pushing force from the push block 4302, and maintains stability throughout the fastening process. The fixed connection between the fastening plate 520 and the fastening plate 510 effectively ensures the stability of the patient's arm, preventing unnecessary displacement of the arm during the entire blood collection process, further improving the accuracy and success rate of the operation. The accuracy of blood collection is often affected by changes in the position of the patient's arm, and precise arm fixation is a prerequisite for successful blood collection. The fastening unit 5, through the semi-circular design and anti-slip texture of the fastening plate 510, provides a stable and precise fixation method. The patient's arm is evenly fixed, preventing arm movement during the blood collection process. Through the precise control of the fastening unit 5, medical personnel can ensure the arm remains stationary without disturbing the patient's comfort, thereby increasing the success rate of blood collection.

[0048] In some embodiments of this application, the collection unit 3 includes a collection groove 310, which is disposed on the upper side of the middle part of the pillow body 1.

[0049] In some embodiments of this application, the acquisition unit 3 further includes an inclined groove 320, and the inclined groove 320 is provided on the side of the middle of the pillow body 1 away from the acquisition groove 310.

[0050] Understandably, accurate and smooth location of blood vessels is a crucial step in clinical blood collection, especially for superficial vessels such as the radial artery. While traditional blood collection methods are relatively mature, they still have many drawbacks. For example, due to muscle tension or improper positioning of the patient's arm, the visibility of blood vessels is often poor, increasing the difficulty for medical staff in judgment and operation. Furthermore, since the location and shape of blood vessels vary from patient to patient, ensuring that vessels are more visible and easier to insert is also an important issue in medical device design. In this embodiment, the collection unit 3 consists of two parts: a collection groove 310 and an inclined groove 320. The collection groove 310 is located on the upper middle part of the headrest 1, providing a comfortable and stable placement space for the patient's arm; while the inclined groove 320 is located away from the collection groove 310, further adjusting the angle of the patient's arm. The collection groove 310 keeps the arm still, preventing changes in blood vessel position due to unconscious movements or discomfort during the blood collection process. The sampling slot 310 makes it easier for healthcare professionals to pinpoint the precise location of blood vessels, especially for superficial vessels (such as the radial artery). It provides an appropriate support angle, improving vessel visibility. Patients do not need to exert excessive force to support their arms, reducing the impact of muscle tension on vessel location and thus improving the accuracy of blood collection. Stable support also reduces patient discomfort from maintaining the same posture for extended periods, increasing patient cooperation and improving the efficiency of medical procedures. The tilting slot 320 adjusts the angle of the patient's arm, placing the wrist in a counter-tilted position, thereby exposing the vessels at the wrist. In the counter-tilted position, the wrist hangs naturally, and the vessels become more prominent and exposed due to gravity, especially their surface, which shows a clearer outline. For healthcare professionals, clear vessel location makes blood collection easier, reducing delays or errors caused by difficulty in locating vessels. Wrist exposure makes the required blood vessels more readily visible, especially superficial vessels such as the radial artery, which are typically more prominent and have a clearer outline in the counter-tilted position. Increased visibility of blood vessels reduces patient discomfort and trauma caused by multiple puncture attempts, thereby improving the success rate of blood collection.

[0051] In some embodiments of this application, the pillow body 1 further includes a connecting strap 6, which is disposed above the collection groove 310, and the two ends of the connecting strap 6 are respectively fixedly connected to the pillow body 1 on both sides of the collection groove 310.

[0052] Understandably, the purpose of a blood collection pillow is to stabilize the patient's arm, enabling medical staff to perform blood collection procedures smoothly. However, in actual operation, especially when the patient may move slightly or adjust their arm position, the blood collection pillow may fall or shift due to insecure fixation of the pillow body 1. This not only affects the accuracy of blood collection but may also cause patient discomfort or delays in medical procedures. The connecting strap 6 increases the overall stability of the blood collection pillow by securely connecting the two sides of the pillow body 1 to the collection slot 310. Regardless of changes in the patient's arm posture, the connecting strap 6 prevents the pillow body 1 from shifting, ensuring that the pillow body 1 is firmly fixed under the patient's arm. This reduces the possibility of the pillow body 1 slipping or falling due to patient movement or discomfort. When the pillow body 1 no longer easily shifts, medical staff can more accurately locate the blood vessel, thereby improving the efficiency and accuracy of the blood collection procedure. For medical staff, this means a smoother blood collection process, eliminating the need for repeated adjustments to the pillow body 1 or the patient's posture, thus saving time and improving the accuracy of the operation. If the bolster 1 falls and causes the arm to be in an improper position, it will compress the blood vessel, affecting the visibility of the vessel and the accuracy of the puncture. Falling the bolster 1 can also cause unnecessary interference for medical staff during the procedure, increasing the risk of misoperation and potentially causing secondary injury to the patient. Maintaining the correct posture of the patient's hand during blood collection is crucial. The stability of the patient's arm requires not only ensuring elbow support but also paying special attention to hand fixation. Since the movement of the patient's arm and hand during blood collection directly affects the visibility of the blood vessel and the accuracy of the puncture, medical staff usually need to ensure that the patient's hand remains stable during the procedure to prevent changes in the position of the blood vessel due to hand movement. The connecting strap 6 ensures that the patient's hand will not shift due to instability or improper posture. The connecting strap 6 is located above the collection slot 310 and connects both sides of the bolster 1, fixing the arm to the bolster 1 as a single unit, thus placing the patient's hand in a comfortable and stable position. The patient's hand will not swing arbitrarily, thereby reducing the difficulty of puncture or unclear vessel position caused by hand movement.

[0053] The radial artery blood collection pillow in the above embodiments has a collection unit set on the pillow body. When blood needs to be collected, the person being collected only needs to place their arm on the collection unit. Compared with the traditional radial artery blood collection, which often requires medical staff to manually adjust the angle of the patient's wrist, the collection unit allows medical staff to perform blood collection at the optimal angle, making it easier to find the blood vessel and improve the success rate of blood collection. Meanwhile, the pillow's support allows the patient's wrist to be in a naturally relaxed state, reducing tension and discomfort during blood collection. The guide section then drives the sliding propulsion section to move the fastening unit, which secures the arm. When the fastening unit is pushed to the appropriate position, the limiting section restricts the guide section, preventing displacement of the fastening unit and avoiding shaking caused by arm soreness from prolonged blood collection. This maintains stability during radial artery blood collection, improving not only the accuracy and success rate of blood collection but also enhancing patient comfort and safety. Arm fixation reduces needle displacement caused by involuntary patient movement, thus avoiding the risk of accidental needle slippage or damage to surrounding tissues. The fastening unit and guide section can be flexibly adjusted to accommodate individual patient differences, ensuring optimal support and fixation for each patient.

[0054] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A radial artery blood collection pillow, characterized in that, include: Pillow body; A fixing plate is disposed inside the pillow body and is fixedly connected to the pillow body; A collection unit is located in the middle of the pillow body. The collection unit has first through holes on both sides and is used to place the patient's arm. A guide unit is disposed on both sides of the fixed plate. The guide unit includes a guide part, a limiting part, and a sliding propulsion part. One end of the guide part extends out of the pillow body. The limiting part is located on one side of the guide part and is located on the side of the guide part closer to the pillow body. One end of the sliding propulsion part is located in the middle of the guide part and is rotatably connected to the guide part. A fastening unit is disposed on the fixed plate, with one end of the fastening unit passing through the first through hole and the other end of the fastening unit connected to the sliding propulsion part.

2. The radial artery blood draw pillow of claim 1, wherein, The guide portion includes a guide rod, a guide block, and a first fixing block. The guide block is disposed on one side of the pillow body and is fixedly connected to the guide rod. The first fixing block is fixedly connected to the fixing plate, and the guide rod is inserted into the first fixing block.

3. The radial artery blood draw pillow of claim 2, wherein, The limiting part includes a limiting frame, a limiting gear, and a first limiting block. The limiting gear is sleeved on one side of the guide rod. The upper inner wall of the limiting frame is rotatably connected to the first limiting block. One end of the first limiting block is attached to the limiting gear, and a limiting strip is formed on the surface of the first limiting block at the position corresponding to the limiting gear. The limiting strip meshes with the limiting gear.

4. The radial artery blood draw pillow of claim 3, wherein, The limiting part further includes a limiting rod and a second limiting block. One end of the limiting rod is inserted into the rotatable connection between the limiting frame and the first limiting block, and the other end of the limiting rod is located on the outside of the pillow body. The second limiting block is fixedly connected to the other end of the limiting rod.

5. The radial artery blood draw pillow of claim 4, wherein, The sliding propulsion part includes a second fixing block and a propulsion block. The second fixing block is fixedly connected to the fixing plate, and both sides of the second fixing block are provided with sliding grooves. The inner surface of the sliding groove is slidably connected to the propulsion block.

6. The radial artery blood draw pillow of claim 5, wherein, The sliding propulsion part further includes a rotating sleeve and a connecting bar. The rotating sleeve is sleeved on the guide rod and is rotatably connected to the connecting bar. The other end of the connecting bar is connected to one side of the propulsion block.

7. The radial artery blood draw pillow of claim 5, wherein, The fastening unit includes a fastening plate and a fastening plate. The fastening plate is fixedly connected to the push block, and the fastening plate is fixedly connected to the other side of the fastening plate. The fastening plate is semi-circular, and the inner surface of the fastening plate is provided with anti-slip texture.

8. The radial artery blood collection pillow according to claim 1, characterized in that, The acquisition unit includes an acquisition slot, which is located on the upper side of the middle part of the pillow body.

9. The radial artery blood draw pillow of claim 8, wherein, The acquisition unit also includes an inclined groove, which is located on the side of the pillow body away from the acquisition groove.

10. The radial artery blood draw pillow of claim 8, wherein, The pillow body also includes a connecting strap, which is disposed above the collection slot, and the two ends of the connecting strap are respectively fixedly connected to the pillow body on both sides of the collection slot.

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