Blood draw protection pad

CN224655324UActive Publication Date: 2026-08-21NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A
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Patent Information

Application Number
CN202520671982.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-08-21
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

[0006]为解决部分患者晕血,轻者头晕恶心,重者直接晕厥,导致采血中断,影响医疗效率,并且部分患者恐惧紧张时,可能会晃动手臂,使抽血针头位置偏移,既让患者更疼,又影响采血效率的问题,本实用新型采用技术方案的基本构思是:

Benefits of technology

[0014] When not in use, this utility model allows the baffle to be laid flat on the base for easy storage. The sliding guide mechanism ensures the baffle is safe and stable during movement, and its position can be flexibly adjusted and locked. The baffle can restrain the upper arm and block the patient's view to prevent fainting from blood. Combined with the restraint mechanism for fixing the forearm, it can effectively deal with situations where children tend to move around, freeing up the hands of medical staff and ensuring the smooth progress of the blood drawing process.

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Abstract

The utility model relates to medical instrument technical field discloses a blood drawing protection pad, including base, is set up with recess on base, is installed with the profiling pad on the recess, install movable left baffle and right baffle on base, left baffle and right baffle all are set up with the sliding guide mechanism for limiting left baffle and right baffle movement between base, install with the locking mechanism for locking left baffle and right baffle between left baffle and right baffle, install with the restraint mechanism for fixing forearm on base. The utility model can place the baffle on the base when not using, and it is convenient to store, the sliding guide mechanism makes the baffle safe and stable in the moving process, and the position can be adjusted and locked flexibly, the baffle can restrict the upper arm, can also block the line of sight and prevent the patient from blood dizzy, and the restraint mechanism for fixing the forearm can effectively deal with the situation that the children are easy to move disorderly, liberate the hands of medical staff, and guarantee the blood drawing process to carry on smoothly.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically, it relates to a blood drawing protective pad. Background Technology

[0002] In the medical field, blood drawing is a common diagnostic and treatment method. Medical blood drawing pads play an indispensable role as an important tool to ensure the smooth blood drawing process and the safety of personnel. They are generally made of sterile and non-irritating materials, which can effectively absorb blood, prevent blood from splashing, reduce the chance of medical staff coming into contact with blood, and reduce the risk of infection.

[0003] During use, it was found that some patients faint at the sight of blood. Mild cases resulted in dizziness and nausea, while severe cases resulted in fainting, leading to interruption of blood collection and affecting medical efficiency. In addition, when some patients are fearful and nervous, they may shake their arms, causing the blood-drawing needle to shift position, which not only makes the patient more painful but also affects the efficiency of blood collection.

[0004] However, through exploration, the inventors have discovered that this technical solution still has at least the following defects:

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To address the issue of some patients experiencing fainting at the sight of blood, ranging from mild dizziness and nausea to severe fainting, which interrupts blood collection and affects medical efficiency, and to prevent patients from shaking their arms due to fear and anxiety, causing the needle to shift position, increasing pain, and further reducing blood collection efficiency, the basic concept of this utility model is as follows:

[0007] A blood-drawing protective pad includes a base with a groove on the base. A contour pad is installed in the groove. A movable left baffle and a right baffle are installed on the base. A sliding guide mechanism is provided between the left baffle and the base to restrict the movement of the left baffle and the right baffle. A locking mechanism is installed between the left baffle and the right baffle to lock the left baffle and the right baffle. A constraint mechanism for fixing the forearm is installed on the base.

[0008] In a preferred embodiment of this utility model, the sliding guide mechanism includes an L-shaped groove, a clearance groove, a first straight groove, a second straight groove, a sliding rod, and a slider. The base has an L-shaped groove and a clearance groove, the width of the L-shaped groove being greater than the width of the clearance groove. The slider and the sliding rod are slidably mounted on the L-shaped groove and the clearance groove, respectively. The widths of the slider and the sliding rod are adapted to the L-shaped groove and the clearance groove, respectively. The base has a first straight groove and a second straight groove, which communicate with the L-shaped groove and the clearance groove, respectively. The first straight groove is circular, its inner diameter is adapted to the outer diameter of the slider, and its width is adapted to the sliding rod.

[0009] In a preferred embodiment of this utility model, both the back of the left baffle and the right baffle are connected to a sliding rod, and the end of the sliding rod is connected to a slider.

[0010] In a preferred embodiment of the present invention, the locking mechanism includes a locking block and a locking groove. The locking block is rotatably mounted on the left baffle, and a placement groove is provided on the left baffle. The locking block is placed in the placement groove, and a locking groove is provided on the right baffle.

[0011] In a preferred embodiment of the present invention, the restraint mechanism includes a strap and two connecting rods. The two connecting rods are respectively installed on both sides of the groove. A strap is installed on one of the connecting rods, and the strap is equipped with a hook and loop side and a loop side.

[0012] In a preferred embodiment of this utility model, a semi-circular pad is installed on both the left and right baffles.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] When not in use, this utility model allows the baffle to be laid flat on the base for easy storage. The sliding guide mechanism ensures the baffle is safe and stable during movement, and its position can be flexibly adjusted and locked. The baffle can restrain the upper arm and block the patient's view to prevent fainting from blood. Combined with the restraint mechanism for fixing the forearm, it can effectively deal with situations where children tend to move around, freeing up the hands of medical staff and ensuring the smooth progress of the blood drawing process.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram:

[0017] Figure 1 A 3D model of a blood-drawing protective pad;

[0018] Figure 2 Cross-section of a blood-drawing protective pad Figure 1 ;

[0019] Figure 3 For use as a blood-drawing protective pad Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 Cross-section of a blood-drawing protective pad Figure 2 ;

[0021] Figure 5 For use as a blood-drawing protective pad Figure 4 Enlarged view of section B in the middle.

[0022] In the diagram: 1. Base; 2. Groove; 3. Contouring pad; 4. Left baffle; 5. Right baffle; 6. Locking block; 7. Placement slot; 8. Locking groove; 9. Semicircular pad; 10. Sliding rod; 11. Sliding block; 12. L-shaped sliding groove; 13. Clearance groove; 14. First straight groove; 15. Second straight groove; 16. Connecting rod; 17. Strap; 18. Hook and loop fastener; 19. Hook and loop fastener. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0024] like Figures 1 to 5 As shown, a blood-drawing protective pad includes a base 1, a groove 2 on the base 1, a contour pad 3 installed in the groove 2, a movable left baffle 4 and a right baffle 5 installed on the base 1, a sliding guide mechanism between the left baffle 4 and the right baffle 5 and the base 1 for restricting the movement of the left baffle 4 and the right baffle 5, a locking mechanism between the left baffle 4 and the right baffle 5 for locking the left baffle 4 and the right baffle 5, and a constraint mechanism for fixing the forearm installed on the base 1. In this setup, base 1 serves as the basic support structure for the entire protective pad, providing a mounting carrier for other components. Groove 2 is used to place the patient's arm and serves a positioning function. Contouring pad 3 conforms to the shape of the arm, increasing patient comfort. Left baffle 4 and right baffle 5 are movably mounted on the base to block the view of patients who faint at the sight of blood, preventing fainting and providing protection and some restraint for the patient's arm. Sliding guide mechanism restricts the movement of left baffle 4 and right baffle 5, allowing them to move smoothly and accurately to the desired position. Locking mechanism locks left baffle 4 and right baffle 5 after they have moved to the appropriate position, providing reliable protection for the patient's arm. Restraint mechanism fixes the patient's forearm, preventing the operation from being affected by arm shaking during blood drawing, which is especially suitable for patients who are easily nervous and fidgety.

[0025] like Figures 1 to 5As shown, in a specific embodiment, the sliding guide mechanism includes an L-shaped groove 12, a clearance groove 13, a first straight groove 14, a second straight groove 15, a slide rod 10, and a slider 11. The base 1 has an L-shaped groove 12 and a clearance groove 13. The width of the L-shaped groove 12 is greater than the width of the clearance groove 13. The slider 11 and the slide rod 10 are slidably mounted on the L-shaped groove 12 and the clearance groove 13, respectively. The widths of the slider 11 and the slide rod 10 are adapted to the L-shaped groove 12 and the clearance groove 13, respectively. The base 1 has a first straight groove 14 and a second straight groove 15. The first straight groove 14 and the second straight groove 15 are respectively connected to the L-shaped groove 12 and the clearance groove 13. The first straight groove 14 is circular. The inner diameter of the first straight groove 14 is adapted to the outer diameter of the slider 11. The width of the first straight groove 14 is adapted to the slide rod 10. In this configuration, the L-shaped groove 12 allows the slider 11 to slide. Through its special L-shaped structure, the slider 11 and the connected left baffle 4 and right baffle 5 can be rotated and their positions adjusted. The clearance groove 13 allows the slide rod 10 to slide. Because its width is smaller than the L-shaped groove 12, it can prevent the slider 11 from falling off the L-shaped groove 12, ensuring the stability of the movement. The first straight groove 14 is connected to the L-shaped groove 12. After the slider 11 moves to a specific position, it can enter the first straight groove 14 to further adjust the position of the left baffle 4 and right baffle 5. Its circular structure and size are adapted to the slider 11. The second straight groove 15 is connected to the clearance groove 13 and allows the slide rod 10 to enter. Its width is smaller than the first straight groove 14 to prevent the slider 11 from falling off the first straight groove 14.

[0026] like Figures 1 to 5 As shown, furthermore, both the left baffle 4 and the right baffle 5 are connected to the back of a sliding rod 10, and the end of the sliding rod 10 is connected to a slider 11. In this configuration, the slider 11 slides in the groove, driving the sliding rod 10 to move, and the left baffle 4 and the right baffle 5 move and are positioned under the action of the sliding rod 10 and the slider 11.

[0027] like Figures 1 to 5 As shown, the locking mechanism further includes a locking block 6 and a locking slot 8. The locking block 6 is rotatably mounted on the left baffle 4, and a placement slot 7 is provided on the left baffle 4, in which the locking block 6 is placed. The locking slot 8 is provided on the right baffle 5. In this configuration, the locking block 6 is rotatably mounted on the left baffle 4 and can be rotatably engaged into the locking slot 8 of the right baffle 5, thereby locking the left baffle 4 and the right baffle 5. The placement slot 7 is provided on the left baffle 4 for placing the locking block 6 and storing the locking block when the locking function is not in use.

[0028] like Figures 1 to 5As shown, the restraint mechanism further includes a strap 17 and two connecting rods 16. The two connecting rods 16 are respectively installed on both sides of the groove. The strap 17 is installed on one of the connecting rods 16, and the strap 17 has a hook and loop fastener 18 and a loop fastener 19. In this configuration, the connecting rods 16 are installed on both sides of the groove 2 to provide an installation position for the strap 17 and assist in fixing the forearm. The hook and loop fastener 18 and the loop fastener 19 are located on the strap 17 and are fixed by the hook and loop fastener 18 and the loop fastener 19 to achieve forearm restraint. The fastening position can be adjusted according to the thickness of the patient's arm.

[0029] like Figures 1 to 5 As shown, semi-circular pads 9 are further installed on both the left baffle 4 and the right baffle 5. In this configuration, the semi-circular pads 9 can restrain the upper arm of the patient's arm.

[0030] The implementation principle of the blood-drawing protective pad in this embodiment is as follows: When not in use, the left baffle 4 and the right baffle 5 can be laid flat and attached to the base 1 for easy storage. When facing a patient who faints at the sight of blood, the left baffle 4 and the right baffle 5 are pushed horizontally. At this time, the sliding rod 10 connected to the back of the left baffle 4 and the right baffle 5 and the slider 11 connected to the end of the sliding rod 10 begin to move. The slider 11 slides in the L-shaped groove 12, and the sliding rod 10 slides in the clearance groove 13. Since the clearance groove 13 is narrower than the L-shaped groove 12, it can effectively prevent the slider 11 from sliding out of the L-shaped groove 12. 2. To ensure stability during movement, when slider 11 moves to the bent part of L-shaped groove 12, the left baffle 4 and right baffle 5 will rotate accordingly, changing direction. Then, continue pushing the baffles to move slider 11 along the extension of L-shaped groove 12 until it reaches the end of L-shaped groove 12. Place the patient's arm in the groove 2 equipped with the contour pad 3. The contour pad 3 can better conform to the shape of the arm, increasing comfort. After placement, the left baffle 4 and right baffle 5 can be closed towards the middle, allowing slider 11 to detach from L-shaped groove 12 and enter... The first straight groove 14 is connected to the sliding rod 10, which enters the second straight groove 15. Similarly, the second straight groove 15 is narrower than the first straight groove 14 to prevent the slider 11 from falling out of the first straight groove 14. When the left baffle 4 and the right baffle 5 are brought together, the locking block 6 in the groove 7 on the left baffle 4 is rotated, causing it to engage with the locking groove 8 on the right baffle 5, thereby locking the positions of the left baffle 4 and the right baffle 5 and providing stable protection for the patient's arm. Simultaneously, the semi-circular pads 9 on the left baffle 4 and the right baffle 5 can restrain the patient's upper arm and prevent fainting spells. This design effectively prevents patients from fainting due to witnessing the blood-drawing process. For patients like children who are easily frightened or restless, the upper arm is first secured before pulling the strap 17 on the connecting rod 16, passing it around the other connecting rod 16, and binding the arm into the groove 2. The hook and loop sides 18 and 19 on the strap 17 are then used to secure the forearm. This ensures a smooth blood-drawing process, and medical staff do not need to hold the child tightly, allowing them to focus more on the blood-drawing procedure.

Claims

1. A blood-drawing protective pad, comprising a base (1), characterized in that, The base (1) has a groove (2) and a contour pad (3) is installed on the groove (2). The base (1) has a movable left baffle (4) and a right baffle (5). The left baffle (4) and the right baffle (5) are provided with a sliding guide mechanism between the left baffle (4) and the base (1) to restrict the movement of the left baffle (4) and the right baffle (5). The left baffle (4) and the right baffle (5) are provided with a locking mechanism to lock the left baffle (4) and the right baffle (5). The base (1) has a constraint mechanism for fixing the forearm.

2. The blood-drawing protective pad according to claim 1, characterized in that, The sliding guide mechanism includes an L-shaped groove (12), a clearance groove (13), a first straight groove (14), a second straight groove (15), a slide rod (10), and a slider (11). The base (1) has an L-shaped groove (12) and a clearance groove (13). The width of the L-shaped groove (12) is greater than the width of the clearance groove (13). The slider (11) and the slide rod (10) are slidably mounted on the L-shaped groove (12) and the clearance groove (13), respectively. The width of the slide bar (10) is adapted to the L-shaped slide groove (12) and the clearance groove (13) respectively. The base (1) is provided with a first straight groove (14) and a second straight groove (15). The first straight groove (14) and the second straight groove (15) are respectively connected to the L-shaped slide groove (12) and the clearance groove (13). The first straight groove (14) is circular. The inner diameter of the first straight groove (14) is adapted to the outer diameter of the slider (11). The width of the first straight groove (14) is adapted to the slide bar (10).

3. The blood-drawing protective pad according to claim 1, characterized in that, The back of both the left baffle (4) and the right baffle (5) are connected to a sliding rod (10), and the end of the sliding rod (10) is connected to a slider (11).

4. The blood-drawing protective pad according to claim 1, characterized in that, The locking mechanism includes a locking block (6) and a locking groove (8). The locking block (6) is rotatably mounted on the left baffle (4). A placement groove (7) is provided on the left baffle (4). The locking block (6) is placed in the placement groove (7). A locking groove (8) is provided on the right baffle (5).

5. The blood-drawing protective pad according to claim 1, characterized in that, The restraint mechanism includes a strap (17) and two connecting rods (16), which are respectively installed on both sides of the groove. The strap (17) is installed on one of the connecting rods (16), and the strap (17) has a hook and loop side (18) and a loop side (19).

6. The blood-drawing protective pad according to claim 1, characterized in that, Semicircular pads (9) are installed on both the left baffle (4) and the right baffle (5).