Vein blood sampling device

Abstract

The utility model discloses a vein blood sampling device, and relates to the technical field of vein blood sampling. The hand restraint device comprises a bottom plate, the bottom plate is horizontally placed, an n-shaped plate is fixed to the bottom plate, a sliding groove penetrating through the n-shaped plate in the thickness direction is formed in the n-shaped plate, two sliding blocks are connected into the sliding groove in a sliding mode, and restraint mechanisms used for restraining the hands of a patient are arranged on the sliding blocks. By means of the design of the sliding grooves and the sliding blocks, adjustment can be conducted according to needs so as to adapt to patients of different sizes; during blood sampling, the arm of the patient needs to be kept in a fixed state, and the restraint mechanism can be adjusted according to the size of the arm of the patient, so that the patient feels more comfortable during blood sampling; due to the design of the restraining mechanism, misoperation caused by movement of the patient can be reduced, and the blood sampling efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of venous blood sampling, in particular to a venous blood sampling device. Background Art

[0002] The process of collecting blood samples through veins or arteries by medical personnel for inspection or related needs. Blood sampling usually collects venous blood. Except for items with special requirements, venous blood tests generally require blood collection in the morning. Try to reduce the amount of exercise before blood collection, do not eat food, keep an empty stomach, and drink a small amount of water, except for some test results that must be taken on time. If you are an inpatient, the doctor or nurse should draw blood for you in a relatively stable state. Before blood collection, the skin of the blood collection site should be cleaned as much as possible. The amount of blood collected is determined by the different test contents and the number of items. The amount of blood collected is generally 2-20 ml, and will not exceed 50 ml at most.

[0003] The proficiency of blood collection technology is directly related to the quality of blood and the physical health of blood donors. It requires that every blood collector must be proficient in blood collection technology. Some venous blood collection devices are designed for adults and are not convenient for children of different sizes. For this reason, this application document provides a venous blood collection device. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0005] A venous blood sampling device includes a base plate, which is placed horizontally and has an n-shaped plate fixed on it. The n-shaped plate is provided with a slide groove running through its thickness, and two sliders are slidably connected in the slide groove. The slider is provided with a restraining mechanism for restraining the patient's hand.

[0006] Furthermore, a limit block is fixedly connected to the sliding block to limit the sliding of the sliding block in the sliding groove, and a nut is threadedly connected to the sliding block to fix the sliding block against the n-shaped plate.

[0007] Furthermore, the restraint mechanism comprises an arc-shaped plate fixed on the top of the slider, an end of the arc-shaped plate is rotatably connected with a restraint belt, and the other end of the arc-shaped plate is configured with a through hole for the restraint belt to pass through.

[0008] Furthermore, a Velcro sub-surface is fixed to the end of the restraint belt.

[0009] Furthermore, a Velcro female surface is fixed to the middle portion of the restraint belt.

[0010] Furthermore, a protective cushion is fixed inside the arc-shaped plate.

[0011] The beneficial effects of the utility model are as follows:

[0012] The utility model can be adjusted as needed to accommodate patients of different sizes through the design of the slide groove and the slider; when drawing blood, the patient's arm needs to remain in a fixed state, and the restraint mechanism can be adjusted according to the size of the patient's arm, so that the patient feels more comfortable when drawing blood; the design of the restraint mechanism can reduce misoperation caused by patient movement and improve the efficiency and accuracy of blood drawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the restraining mechanism of the utility model;

[0016] Figure 4 This is a three-dimensional structural schematic diagram of the restraining mechanism of the utility model from another angle;

[0017] Figure numerals: 1, bottom plate; 2, n-shaped plate; 3, slide groove; 4, slider; 5, constraint mechanism; 501, arc plate; 502, constraint belt; 503, perforation; 504, Velcro sub-surface; 505, Velcro mother surface; 6, limit block; 7, nut; 8, protective cushion. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0019] The present application provides a venous blood sampling device, which is mainly used to solve the problem that some venous blood sampling devices are designed for adults and are not convenient for children of different sizes to use, and provides the following technical solutions, which will be described in detail below:

[0020] Embodiment 1:

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, in some embodiments, it includes a base plate 1, the base plate 1 is placed horizontally and an n-shaped plate 2 is fixed on the base plate 1, a slide groove 3 is opened on the n-shaped plate 2 and runs through its thickness direction, two sliders 4 are slidably connected in the slide groove 3, and a restraint mechanism 5 for restraining the patient's hand is arranged on the slider 4; the restraint mechanism 5 includes an arc-shaped plate 501 fixed on the top of the slider 4, a restraint belt 502 is rotatably connected to the end of the arc-shaped plate 501, and the other end of the arc-shaped plate 501 is constructed with a through hole 503 for the restraint belt 502 to pass through; a Velcro sub-surface 504 is fixed to the end of the restraint belt 502; a Velcro mother surface 505 is fixed to the middle of the restraint belt 502.

[0022] Specifically: through the design of the slide groove 3 and the slider 4, they can be adjusted as needed to accommodate patients of different sizes; when drawing blood, the patient's arm needs to remain fixed, and the restraint mechanism 5 can be adjusted according to the size of the patient's arm, so that the patient feels more comfortable when drawing blood; the design of the restraint mechanism 5 can reduce misoperation caused by patient movement and improve the efficiency and accuracy of blood drawing.

[0023] The working principle here is: in the working principle of the venous blood sampling device, the restraint mechanism 5 plays the role of fixing the patient's hand. Specifically, the restraint mechanism 5 includes an arc plate 501 and a restraint belt 502; first, the slider 4 is provided with an arc plate 501 fixed at the top, the arc plate 501 can be rotatably connected, and one end is configured with a perforation 503 for the restraint belt 502 to pass through; secondly, the restraint belt 502 is fixed by the perforation 503 and the Velcro sub-surface 504; the end of the restraint belt 502 is fixed with the Velcro sub-surface 504, and the middle of the restraint belt 502 is fixed with the Velcro mother surface 505; in this way, when the restraint belt 502 passes through the perforation 503 of the arc plate 501 and is connected, the Velcro sub-surface 505 is fixed to the Velcro mother surface 505. 04 and the Velcro mother surface 505 will be bonded together, thereby achieving the effect of fixing the patient's hand; during use, medical staff can adjust the length and tightness of the restraint belt 502 according to the size and shape of the patient's hand; then, the patient's arm is placed on the arc plate 501 of the restraint mechanism 5 so that the arm remains fixed; through the design of the restraint mechanism 5, the patient's hand can be firmly fixed in an appropriate position, ensuring the accuracy and safety of the blood collection operation; at the same time, the restraint belt 502 rotatably connected to the arc plate 501 can improve the patient's comfort and adapt to patients of different sizes. When the patient's blood collection is finished, the Velcro sub-surface 504 and the Velcro mother surface 505 can be loosened, so that the restraint belt 502 is loosened.

[0024] like Figure 1 , Figure 2As shown, in some embodiments, a limit block 6 is fixedly connected to the slider 4 to limit its sliding in the chute 3, and a nut 7 is threadedly connected to the slider 4 to fix it against the n-shaped plate 2. The working principle here is: first, the limit block 6 limits the travel of the slider 4 in the chute 3; when the slider 4 slides to the position of the limit block 6, it can no longer slide further; this can prevent the slider 4 from sliding out of the chute 3, thereby ensuring the safety of the patient; secondly, the nut 7 fixes the slider 4 against the n-shaped plate 2; the nut 7 is threadedly connected to the slider 4, and the medical staff can adjust the position of the slider 4 by rotating the nut 7; when the slider 4 reaches the appropriate position, the nut 7 can fix it on the n-shaped plate 2 to maintain the stability and reliability of the device. At the same time, the limit block 6 can also prevent the slider 4 from sliding out of the chute 3, thereby ensuring the safety of the patient.

[0025] Embodiment 2:

[0026] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, in some embodiments, a protective pad 8 is fixed inside the curved plate 501, and the working principle here is: the protective pad 8 is fixed inside the curved plate 501 to protect the patient's hands; specifically, the protective pad 8 is placed inside the curved plate 501 to provide comfortable support and reduce hand pressure; when the patient's arm is placed in the restraint mechanism 5, the protective pad 8 will contact the hand; it can provide soft support through soft materials and suitable fillings to reduce hand discomfort; the design of the protective pad 8 takes ergonomics into consideration to ensure the patient's comfort and safety during blood collection; in addition, the protective pad 8 can also play an anti-slip role to ensure that the patient's hands are stably fixed in the appropriate position; it can provide additional friction to prevent the hand from sliding or shifting, thereby maintaining the stability and visibility of the vein.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A venous blood sampling device, comprising a bottom plate (1), characterized in that: The base plate (1) is placed horizontally and an n-shaped plate (2) is fixed on the base plate (1), a slide groove (3) penetrating the n-shaped plate (2) is provided in the n-shaped plate (2) in the thickness direction, two sliders (4) are slidably connected in the slide groove (3), and a restraining mechanism (5) for restraining the patient's hand is provided on the slider (4); The restraining mechanism (5) comprises an arc-shaped plate (501) fixed on the top of the slider (4); an end of the arc-shaped plate (501) is rotatably connected to a restraining belt (502); and the other end of the arc-shaped plate (501) is configured with a through hole (503) for the restraining belt (502) to pass through.

2. A venous blood sampling device according to claim 1, characterized in that: The slider (4) is fixedly connected with a limit block (6) for limiting its sliding in the slide groove (3), and the slider (4) is threadedly connected with a nut (7) for abutting and fixing the slider on the n-shaped plate (2).

3. A venous blood sampling device according to claim 1, characterized in that: A Velcro sub-surface (504) is fixed to the end of the restraining belt (502).

4. A venous blood sampling device according to claim 1, characterized in that: A Velcro female surface (505) is fixed to the middle of the restraining belt (502).

5. A venous blood sampling device according to claim 1, characterized in that: A protective cushion (8) is fixed inside the arc-shaped plate (501).

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