An arm blood collection auxiliary device for hematology department

Abstract

The application relates to an auxiliary device, in particular to an arm blood collection auxiliary device for a hematology department. The application provides an arm blood collection auxiliary device for a hematology department which is convenient for medical staff to collect blood, simple in structure and suitable for promotion. The arm blood collection auxiliary device for a hematology department comprises a supporting block and a mounting plate frame, three supporting blocks are arranged at the bottom of the mounting plate frame at intervals, a cover closing mechanism is arranged on the mounting plate frame, a squeezing mechanism is arranged between the mounting plate frame and the cover closing mechanism, eight flow-limiting pressing blocks are arranged on the squeezing mechanism, and a clamping block mechanism is arranged between the mounting plate frame and the cover closing mechanism. The cover closing mechanism, the squeezing mechanism and the clamping block mechanism are matched, the flow-limiting pressing blocks can squeeze the arm of a patient, the veins are shown after the blood is filled, and medical staff can conveniently find the blood drawing area.

Description

Technical Field

[0001] This invention relates to an auxiliary device, and more particularly to an arm-based blood collection auxiliary device for hematology. Background Technology

[0002] The hematology department specializes in diagnosing and treating diseases of the blood system. Blood system diseases refer to diseases affecting blood cells and hematopoietic organs. During the diagnosis and treatment process in the hematology department, medical staff need to draw blood from patients for testing. Generally, medical staff use a rubber tube to tightly bind the patient's arm so that the blood fills up and the veins become visible. Then, medical staff use a lancet to draw blood from the patient's arm. When the rubber tube is bound to the patient's arm, it is easy for it to loosen during the blood collection process, which can affect the collection process.

[0003] Therefore, based on the above situation, there is a need in the market for a blood collection arm auxiliary device that is convenient for medical staff to collect blood, has a simple structure, and is suitable for widespread application. Summary of the Invention

[0004] The purpose of this invention is to provide a blood collection auxiliary device for hematology that is convenient for medical staff to collect blood, has a simple structure, and is suitable for widespread application. It can solve the problem mentioned in the background art that when a rubber tube is used to bind the patient's arm, the rubber tube is easy to loosen during the blood collection process, which affects the collection process.

[0005] The technical solution of this invention is: an arm-based blood collection auxiliary device for hematology, comprising:

[0006] Support blocks and mounting plate frame, with three support blocks spaced apart at the bottom of the mounting plate frame;

[0007] A lid-closing mechanism is provided on the mounting plate frame;

[0008] An extrusion mechanism is provided between the mounting plate frame and the cover closing mechanism;

[0009] The extrusion mechanism is equipped with eight flow-limiting blocks.

[0010] A locking mechanism is provided between the mounting plate frame and the cover closing mechanism.

[0011] Beneficially, the covering mechanism includes:

[0012] Rotary rods: Two rotating rods are provided on the upper part of the mounting plate frame;

[0013] A cover plate is provided between the two rotating rods;

[0014] The first fixing block is provided on the mounting plate frame;

[0015] The guide sleeve is provided inside the first fixed block;

[0016] An arc-shaped guide rod is provided on the cover plate, and the arc-shaped guide rod is slidably connected to the guide sleeve.

[0017] Advantageously, the extrusion mechanism includes:

[0018] The bottom of the mounting plate and cover is equipped with four telescopic rods at intervals, and the inner side of each of the eight telescopic rods is connected to eight flow-limiting pressure blocks.

[0019] The first spring is wound around each of the eight telescopic rods, and the two ends of the first spring are connected to the telescopic rod and the current limiting pressure block, respectively.

[0020] Pressure-bearing blocks are provided on both sides of the top center of the cover plate;

[0021] A handle is provided on the outer wall of the cover plate.

[0022] Beneficially, the card block mechanism includes:

[0023] The outer casing is mounted on the mounting plate frame;

[0024] Arc-shaped locking blocks are provided on both the outer wall and the middle of the cover plate;

[0025] The outer casing has sleeves on both sides of the upper part, and the sleeves contact the arc-shaped locking blocks on the same side.

[0026] A sliding block is provided in the middle of the upper part of the outer casing;

[0027] Connecting block; the bottom of the pull block is equipped with a connecting block.

[0028] The connecting block has sliding locking posts on both sides, and the locking posts contact the arc-shaped locking blocks on the same side.

[0029] The second spring is wound around both locking pins, and the two ends of the second spring are connected to the locking sleeve and the connecting block, respectively.

[0030] Advantageously, it also includes a hand-holding mechanism, which includes:

[0031] Support frames are provided on both sides of the mounting plate frame;

[0032] A rotating shaft is provided between the upper parts of the two support frames;

[0033] Grip block, a grip block is provided on the rotating shaft.

[0034] Advantageously, it also includes an application mechanism, which includes:

[0035] The second fixing block is provided on both sides of the cover plate;

[0036] A sliding rod is provided between the lower side of the second fixing block and the cover plate;

[0037] The movable frame is slidably mounted between two sliding rods.

[0038] A connecting frame is provided in the middle of the upper part of the movable frame;

[0039] Mounting block; the bottom of the connecting bracket is equipped with a mounting block.

[0040] Sponge rollers are provided on the underside of the mounting block in a rotating manner.

[0041] Advantageously, it also includes a liquid injection mechanism, which includes:

[0042] Top block: A top block is provided on the top of the connecting frame;

[0043] The third fixing block is provided at intervals on the top of the cover plate;

[0044] U-shaped liquid storage tanks are provided between the four third fixed blocks;

[0045] The outer cover is located in the middle of the top of the cover plate;

[0046] The fourth fixing block is provided at a distance from the top of the cover plate;

[0047] A pressure tank is provided between the two fourth fixed blocks;

[0048] The air delivery pipes are connected between the two sides of the air pressure tank and the two sides of the U-shaped liquid storage tank, respectively.

[0049] The extrusion block is a sliding extrusion block located in the middle of the air pressure tank.

[0050] An elastic component is provided between the air pressure tank and the outer cover. The elastic component is fixedly connected to the compression block and is in contact with the top block.

[0051] Flexible tubing connects the top two sides of the mounting block to the two sides of the U-shaped liquid storage tank.

[0052] Beneficially, the movement of the sponge roller can apply the medication to the patient's arm.

[0053] Compared with the prior art, the present invention has the following advantages: 1. The present invention has a cover-closing mechanism, a squeezing mechanism and a locking mechanism working together to enable the flow-limiting pressure block to squeeze the patient's arm so that the veins become visible after the blood fills up, making it easier for medical staff to find the blood drawing area. Medical staff can place their hands on the squeezing mechanism components respectively, which is convenient for medical staff to operate.

[0054] 2. With the addition of a hand grip mechanism, the patient can grip the hand grip mechanism component, causing the hand grip mechanism to rotate, making it convenient to place the hand on the flow-limiting pressure block without causing the arm to bend;

[0055] 3. Equipped with an application mechanism, medical staff can apply medication to the patient's arm by operating the mechanism, thereby disinfecting the arm and achieving the desired application effect;

[0056] 4. By incorporating an injection mechanism and an application mechanism, the operation of the application mechanism drives the operation of the injection mechanism, allowing the liquid medicine in the injection mechanism to flow onto the application mechanism, replenishing the application mechanism with liquid medicine and achieving the effect of injection. Attached Figure Description

[0057] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0058] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0059] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0060] Figure 4 This is a three-dimensional structural diagram of the lid closing mechanism of the present invention.

[0061] Figure 5 This is a three-dimensional structural diagram of the first type of extrusion mechanism of the present invention.

[0062] Figure 6 This is a schematic diagram of a second three-dimensional structure of the extrusion mechanism of the present invention.

[0063] Figure 7 This is a schematic diagram of the first three-dimensional structure of the card block mechanism of the present invention.

[0064] Figure 8 This is a schematic diagram of a second three-dimensional structure of the card block mechanism of the present invention.

[0065] Figure 9 This is an enlarged three-dimensional structural diagram of point A in the present invention.

[0066] Figure 10 This is a three-dimensional structural diagram of the hand grip mechanism of the present invention.

[0067] Figure 11 This is a three-dimensional structural diagram of the coating mechanism of the present invention.

[0068] Figure 12 This is a three-dimensional structural diagram of the liquid injection mechanism of the present invention.

[0069] Figure 13 This is an enlarged three-dimensional structural diagram of point B in the present invention.

[0070] In the attached diagram, the markings are as follows: 1: Support block, 2: Mounting plate frame, 3: Flow limiting pressure block, 4: Cover closing mechanism, 41: Rotating rod, 42: Cover plate, 43: First fixed block, 44: Arc-shaped guide rod, 45: Guide sleeve, 5: Extrusion mechanism, 51: Telescopic rod, 52: First spring, 53: Pressure block, 54: Handle, 6: Locking mechanism, 61: Outer shell, 62: Arc-shaped locking block, 63: Locking sleeve, 64: Connecting block, 65: Pulling block, 66: Locking post, 67: Second spring, 7 71: Hand gripping mechanism; 72: Support frame; 73: Rotating shaft; 74: Grip block; 8: Application mechanism; 85: Second fixing block; 86: Slide rod; 87: Moving frame; 88: Connecting frame; 89: Mounting block; 80: Sponge roller; 91: Liquid injection mechanism; 92: Top block; 93: Third fixing block; 94: U-shaped liquid storage tank; 95: Outer cover; 96: Elastic component; 97: Air pressure tank; 98: Air guide tube; 99: Squeezing block; 910: Flexible tube. Detailed Implementation

[0071] All features disclosed in this invention, or steps in all methods or processes disclosed, may be combined in any way, except for mutually exclusive features and / or steps.

[0072] Any feature disclosed in this invention (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0073] The following will refer to the appendices in the embodiments of the present invention. Figures 1 to 13 The technical solutions in the novel embodiments are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0074] like Figures 1 to 13 As shown, a blood collection auxiliary device for hematology includes a support block 1, a mounting frame 2, a flow-limiting pressure block 3, a capping mechanism 4, a squeezing mechanism 5, and a locking mechanism 6. The mounting frame 2 has three support blocks 1 spaced apart at its bottom. The mounting frame 2 has a capping mechanism 4. The squeezing mechanism 5 is located between the mounting frame 2 and the capping mechanism 4. The squeezing mechanism 5 has eight flow-limiting pressure blocks 3. The locking mechanism 6 is located between the mounting frame 2 and the capping mechanism 4.

[0075] The closing mechanism 4 includes a rotating rod 41, a cover plate 42, a first fixed block 43, an arc-shaped guide rod 44, and a guide sleeve 45. Two rotating rods 41 are rotatably provided on the upper left front side of the mounting plate frame 2, and a cover plate 42 is provided between the two rotating rods 41. A first fixed block 43 is provided on the front right side of the mounting plate frame 2, and a guide sleeve 45 is provided inside the first fixed block 43. An arc-shaped guide rod 44 is provided on the right front side of the cover plate 42, and the arc-shaped guide rod 44 is slidably connected to the guide sleeve 45.

[0076] The extrusion mechanism 5 includes telescopic rods 51, first springs 52, pressure blocks 53, and handles 54. Four telescopic rods 51 are spaced apart on the front side of the mounting plate frame 2 and the bottom front side of the cover plate 42. The inner sides of the eight telescopic rods 51 are connected to eight flow-limiting pressure blocks 3. The first springs 52 are wound around the eight telescopic rods 51. The two ends of the first springs 52 are connected to the telescopic rods 51 and the flow-limiting pressure blocks 3, respectively. Pressure blocks 53 are provided on the left and right sides of the top middle of the cover plate 42. A handle 54 is provided on the right front side of the outer wall of the cover plate 42.

[0077] The locking mechanism 6 includes a housing 61, an arc-shaped locking block 62, a sleeve 63, a connecting block 64, a pull block 65, a locking post 66, and a second spring 67. The housing 61 is located on the front right side of the mounting plate frame 2. Arc-shaped locking blocks 62 are located on the right front side and the right middle side of the outer wall of the cover plate 42. Sleeves 63 are located on both the front and rear sides of the upper part of the housing 61. The sleeves 63 are in contact with the arc-shaped locking blocks 62 on the same side. A pull block 65 is slidably located in the middle of the upper part of the housing 61. A connecting block 64 is located at the bottom of the pull block 65. Locking posts 66 are slidably located on both the front and rear sides of the connecting block 64. The locking posts 66 are in contact with the arc-shaped locking blocks 62 on the same side. A second spring 67 is wound around each of the two locking posts 66. The two ends of the second spring 67 are connected to the sleeve 63 and the connecting block 64, respectively.

[0078] It also includes a hand grip mechanism 7, which includes a support frame 71, a rotating shaft 72 and a grip block 73. The support frame 71 is provided on both the left and right sides of the rear of the mounting plate frame 2. The rotating shaft 72 is rotatably provided between the upper parts of the two support frames 71, and the grip block 73 is provided on the rotating shaft 72.

[0079] It also includes an application mechanism 8, which includes a second fixing block 81, a slide bar 82, a movable frame 83, a connecting frame 84, a mounting block 85, and a sponge roller 86. The second fixing block 81 is provided on both the left and right sides of the rear of the cover plate 42. The slide bar 82 is provided between the lower side of the second fixing block 81 and the cover plate 42. The movable frame 83 is slidably provided between the rear sides of the two slide bars 82. The connecting frame 84 is provided on the front side of the middle of the upper part of the movable frame 83. The mounting block 85 is provided at the bottom of the connecting frame 84. The sponge roller 86 is rotatably provided on the lower side of the mounting block 85.

[0080] It also includes a liquid injection mechanism 9, which comprises a top block 91, a third fixing block 92, a U-shaped liquid storage tank 93, an outer cover 94, an elastic component 95, a fourth fixing block 96, a pressure tank 97, a vent pipe 98, and a squeezing block 99. The connecting frame 84 has a top block 91 at its rear top. The cover plate 42 has four third fixing blocks 92 spaced apart at its rear top, with a U-shaped liquid storage tank 93 between the four third fixing blocks 92. The cover plate 42 has an outer cover 94 in the middle of its rear top top, and two fourth fixing blocks 96 spaced apart at its rear top top, with a pressure tank 97 between the two fourth fixing blocks 96. Air guide pipes 98 are connected to the left and right sides of the rear of the 97 and the left and right sides of the U-type liquid storage tank 93, respectively. A squeezing block 99 is slidably provided in the middle of the air pressure tank 97. An elastic component 95 is provided between the front side of the air pressure tank 97 and the front side of the outer cover 94. The rear side of the elastic component 95 is fixedly connected to the squeezing block 99. The elastic component 95 is in contact with the top block 91. The elastic component 95 consists of a spring rod and a common spring. A common spring is wound on the spring rod. The two ends of the common spring are connected to the spring rod and the outer cover 94, respectively. Flexible tubes 910 are connected to the left and right sides of the top of the mounting block 85 and the left and right sides of the U-type liquid storage tank 93, respectively.

[0081] When medical staff need to collect blood from a patient, they can use this hematology arm blood collection auxiliary device. First, the medical staff needs to pull the locking mechanism 6 to operate, which facilitates the pulling of the squeezing mechanism 5, thereby driving the closing mechanism 4 to operate. Then, the medical staff instructs the patient to place their arm on the lower flow-limiting pressure block 3. Then, the medical staff pulls the squeezing mechanism 5 to operate in the opposite direction, causing the closing mechanism 4 to operate in the opposite direction, so that the flow-limiting pressure block 3 can squeeze the arm, allowing the medical staff to draw blood from the patient's arm. After the blood draw is completed, the medical staff can repeat the above operation and instruct the patient to remove their arm.

[0082] Medical staff manually pull the cover plate 42 to the left, causing the arc-shaped guide rod 44 to move to the left and the rotating rod 41 to rotate. They then signal the patient to place their arm on the flow-limiting pressure block 3 on the lower side. Afterward, they can manually pull the cover plate 42 to the right, causing the rotating rod 41 to rotate in the opposite direction and the arc-shaped guide rod 44 to move to the right, thus covering the placement opening of the mounting plate frame 2. This facilitates the medical staff in drawing blood from the patient. After the blood has been drawn, the medical staff can repeat the above operation and signal the patient to remove their arm.

[0083] Medical staff can hold handle 54 and move it to the left, causing the cover plate 42 to rotate to the left. This causes the upper telescopic rod 51, the first spring 52, and the flow-limiting block 3 to all move to the left. At this time, the patient can place their arm on the lower flow-limiting block 3, causing the lower flow-limiting block 3 to move outward. This causes the telescopic rod 51 on the same side to shorten, and the first spring 52 to be compressed. Then, medical staff can hold handle 54 and move it to the right, causing the cover plate 42 to rotate to the right. This causes the upper telescopic rod 51, the first spring 52, and the flow-limiting block 3 to all rotate to the right, so that the upper flow-limiting block 3 comes into contact with the arm, thereby limiting the flow. The flow-limiting pressure block 3 moves outward, which in turn shortens the telescopic rod 51 on the same side, compresses the first spring 52, and the outward movement of the flow-limiting pressure blocks 3 on both the upper and lower sides can squeeze the arm, making the vein visible after the blood volume is full, so that medical staff can easily find the blood drawing area on the patient's arm. After it is visible, the medical staff can place both hands on the pressure block 53 and use the blood drawing tool to draw blood. After the medical staff has drawn blood, the above operation is repeated and the patient is signaled to remove the arm. When the arm is no longer in contact with the flow-limiting pressure block 3, the first spring 52 returns to its original position, causing the telescopic rod 51 to return to its original position, thereby causing the flow-limiting pressure block 3 to move inward.

[0084] Medical staff can manually pull the lever 65 forward, causing the connecting block 64 and the locking pin 66 to move forward as well. The second spring 67 is stretched, preventing the locking pin 66 from contacting the sleeve 63 and the arc-shaped locking block 62. Medical staff can then pull the handle 54 to the left, causing the cover plate 42, handle 54, and arc-shaped locking block 62 to move to the left. At this time, the patient can place their arm on the lower flow-limiting pressure block 3. When the medical staff releases their grip, the second spring 67 resets, causing the locking pin 66 to move backward, which in turn causes the connecting block 64 and the lever 65 to reset, allowing the patient to... When the locking pin 66 contacts the locking sleeve 63 on the same side and locks onto the locking sleeve 63, when the handle 54 moves to the right, the handle 54 drives the cover plate 42, the handle 54 and the arc-shaped locking block 62 to move to the right, so that the arc-shaped locking block 62 can contact the locking sleeve 63 on the same side. When the arc-shaped locking block 62 contacts the locking pin 66 on the same side, the locking pin 66 moves forward, and the second spring 67 is stretched until the small hole on the arc-shaped locking block 62 is aligned with the locking pin 66. As the second spring 67 resets, it drives the locking pin 66 to move backward and reset, so that the locking pin 66 can lock the arc-shaped locking block 62.

[0085] After the patient places their arm on the lower flow-limiting pressure block 3, they can hold the grip block 73 with their hand and rotate the grip block 73 slightly, thereby driving the rotating shaft 72 to rotate. This will not cause the patient's arm to bend, thus affecting the blood draw. After the patient has finished drawing blood, simply stop rotating the grip block 73 so that the rotating shaft 72 stops rotating.

[0086] Medical staff can manually push the mobile frame 83 forward, which in turn moves the connecting frame 84, the mounting block 85, and the sponge roller 86 forward. When the sponge roller 86 comes into contact with the skin on the patient's arm, it rotates, allowing for the application of disinfectant to the skin on the patient's arm, making blood drawing safer and achieving the desired effect. Subsequently, the mobile frame 83 can be pushed backward, which in turn moves the connecting frame 84, the mounting block 85, and the sponge roller 86 backward, allowing the sponge roller 86 to apply disinfectant to the arm again.

[0087] When the mounting block 85 moves forward, it causes the top block 91 and the flexible tube 910 to move forward as well, so that the top block 91 does not contact the elastic component 95. As the elastic component 95 is in a compressed state, it resets and drives the squeezing block 99 to move forward. Since the flow direction of the air duct 98 is unidirectional, the medicine will not flow back at this time. When the mounting block 85 moves backward, it drives the top block 91 and the flexible tube 910 to move backward, so that the top block 91 contacts the elastic component 95, thereby compressing the elastic component 95. This causes the squeezing block 99 to move backward. The squeezing block 99 can increase the pressure in the air pressure tank 97 and push the medicine in the U-shaped liquid storage tank 93 out through the air duct 98. The medicine flows through the flexible tube 910 to the mounting block 85 and then into the sponge roller 86, which can replenish the medicine in the sponge roller 86.

[0088] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A blood collection auxiliary device for hematology, characterized in that, include: Support block (1) and mounting plate frame (2), with three support blocks (1) spaced apart at the bottom of the mounting plate frame (2); The cover closing mechanism (4) is provided on the mounting plate frame (2); The extrusion mechanism (5) is provided between the mounting plate frame (2) and the cover closing mechanism (4); The flow-limiting pressure block (3) is provided on the extrusion mechanism (5) with eight flow-limiting pressure blocks (3); A locking mechanism (6) is provided between the mounting plate frame (2) and the closing mechanism (4). The closing mechanism (4) includes: Rotary rod (41), the upper part of the mounting plate (2) is equipped with two rotating rods (41). Cover plate (42) is provided between the two rotating rods (41); The first fixed block (43) is provided on the mounting plate frame (2); Guide sleeve (45), the first fixed block (43) is provided with guide sleeve (45); An arc-shaped guide rod (44) is provided on the cover plate (42). The arc-shaped guide rod (44) is slidably connected to the guide sleeve (45). The extrusion mechanism (5) includes: The bottom of the telescopic rod (51), the mounting plate frame (2) and the cover plate (42) are each provided with four telescopic rods (51) at intervals, and the inner sides of the eight telescopic rods (51) are connected to eight flow-limiting pressure blocks (3); The first spring (52) is wound around each of the eight telescopic rods (51). The two ends of the first spring (52) are connected to the telescopic rods (51) and the flow limiting block (3) respectively. Pressure blocks (53) are provided on both sides of the top center of the cover plate (42); The handle (54) and the cover plate (42) are provided with a handle (54) on the outer wall. The locking mechanism (6) includes: The outer casing (61) is provided on the mounting plate frame (2); Arc-shaped locking blocks (62) are provided on the outer wall of the cover plate (42) and in the middle of the cover plate (42); Sleeves (63) are provided on both sides of the upper part of the outer shell (61), and the sleeves (63) are in contact with the arc-shaped card block (62) on the same side; Pull block (65), the upper middle part of the outer shell (61) is provided with a sliding pull block (65); Connecting block (64), the bottom of the pull block (65) is provided with connecting block (64); The locking post (66) and the connecting block (64) are slidably provided with locking posts (66) on both sides, and the locking posts (66) are in contact with the arc-shaped locking block (62) on the same side; The second spring (67) is wound around both of the two retaining posts (66). The two ends of the second spring (67) are connected to the retaining sleeve (63) and the connecting block (64) respectively. It also includes an applicator mechanism (8), which includes: The second fixing block (81) is provided on both sides of the cover plate (42); A slide rod (82) is provided between the lower side of the second fixing block (81) and the cover plate (42). The movable frame (83) is slidably provided between two sliding rods (82); Connecting frame (84), the upper middle part of the movable frame (83) is provided with connecting frame (84); Mounting block (85), the bottom of the connecting bracket (84) is provided with mounting block (85); The sponge roller (86) is rotatably mounted on the underside of the mounting block (85), and also includes a liquid injection mechanism (9), which includes: Top block (91), the top of the connecting frame (84) is provided with top block (91); The top of the cover plate (42) is provided with four third fixing blocks (92) at intervals; U-shaped liquid storage tank (93), with U-shaped liquid storage tank (93) provided between the four third fixing blocks (92); The outer cover (94) is provided in the middle of the top of the cover plate (42); The fourth fixing block (96) is provided at a distance from the top of the cover plate (42); A pressure tank (97) is provided between the two fourth fixed blocks (96); The air pipe (98) is connected to both sides of the air pressure tank (97) and the U-shaped liquid storage tank (93). The extrusion block (99) is provided in the middle of the air pressure tank (97). An elastic component (95) is provided between the elastic component (95), the air pressure tank (97) and the outer cover (94). The elastic component (95) is fixedly connected to the extrusion block (99), and the elastic component (95) is in contact with the top block (91). The flexible tube (910) is connected to the two sides of the top of the mounting block (85) and the two sides of the U-shaped liquid storage tank (93).

2. The blood collection auxiliary device for hematology as described in claim 1, characterized in that, It also includes a hand grip mechanism (7), which includes: Support frame (71), and support frame (71) are provided on both sides of mounting plate frame (2); A rotating shaft (72) is provided between the upper parts of the two support frames (71). Grip block (73), the rotating shaft (72) is provided with grip block (73).

3. The blood collection auxiliary device for hematology as described in claim 2, characterized in that, The operation of the sponge roller (86) can apply the medicine to the patient's arm.

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