Fixing device for venipuncture

Abstract

The utility model provides a fixing device for venipuncture, which relates to the technical field of medical instruments and comprises a U-shaped device plate, a fixing plate mounted on the inner side of the U-shaped device plate, memory foam mounted on the fixing plate, a lower fixing cylinder mounted on the inner side of the U-shaped device plate, and an upper fixing cylinder mounted on the lower surface of the fixing plate. The lower fixing cylinder and the upper fixing cylinder are connected through a spring, plug connectors are installed at the two ends of the inner side of the U-shaped device plate, plug connectors are formed in the plug connectors, and a movable plate is installed on the lower portion of the fixing plate. When the soft memory pillow surface is used by a patient with skin laxity, the skin at the laxity part is tensioned and then fixed on the lower side of an arm, the skin at the puncture part is relatively compact, and blood vessels are not easy to slide and are convenient to puncture. The memory pillow is made of soft and comfortable materials, a patient does not feel uncomfortable when making contact with the skin, and especially for a patient with peripheral nerve injury caused by chemotherapy, due to the fact that the patient cannot make contact with a cold object, the soft surface well solves the problem.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and more specifically, relates to a fixing device for venous puncture. Background Art

[0002] Bone and soft tissue tumors are serious threats to human health and life. Their incidence has been increasing in recent years, while the age of onset has been decreasing. Early detection, correct diagnosis, and timely treatment have a significant impact on prognosis. While diagnostic accuracy has gradually improved with the continuous advancement of examination methods and techniques, a large proportion of tumors still lack typical imaging features, making diagnosis difficult. A correct diagnosis requires a combination of clinical, imaging, and pathological analysis. Pathological diagnosis plays a key role in the selection of treatment options. A puncture biopsy is the primary method for obtaining a pathological diagnosis.

[0003] Based on the above, the inventors have discovered the following problems: most inpatients in the oncology department require long-term fluid replacement therapy, because chemotherapy and repeated punctures lead to poor vascular conditions. When both hands cannot be used for puncture, puncture is required in the upper arm or even the forearm. For some thin patients with loose skin, the blood vessels at the puncture site are highly slippery, which can easily lead to puncture failure and cause pain to the patients. Patients who require chemotherapy and have difficulty with peripheral puncture often need to have a central venous catheter such as a PICC or an infusion port inserted. However, PICCs and infusion ports are generally inserted into the basilic vein and the brachial vein, and the puncture point is located on the inner side of the upper arm. For patients with loose upper arm muscles, the difficulty of successful puncture is increased. The intravenous catheter with the puncture point on the inner side of the upper arm is too close to the bed when the skin is disinfected with the puncture point as the center. The patient needs to raise his arm or lean to one side to fully expose the skin around the puncture point to ensure that the disinfection range is sufficient. The above problems also exist when fixing with a film after disinfection, causing inconvenience to both the operator and the patient.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a fixation device for venous puncture is provided, in order to achieve the purpose of having more practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a fixing device for intravenous puncture to solve the problem that the blood vessels at the current puncture site are highly slippery, which easily leads to puncture failure and causes pain to the patient. The intravenous catheter at the puncture site on the inner side of the upper arm is too close to the bed surface when the skin is disinfected with the puncture site as the center. The patient needs to raise his arm or lean to one side to fully expose the skin around the puncture site.

[0006] The purpose and efficacy of the venipuncture fixation device of the present invention are achieved by the following specific technical means:

[0007] A fixing device for intravenous puncture includes a U-shaped device plate, a fixing plate is installed on the inner side of the U-shaped device plate, memory foam is installed on the fixing plate, a lower fixing cylinder is installed on the inner side of the U-shaped device plate, an upper fixing cylinder is installed on the lower surface of the fixing plate, the lower fixing cylinder and the upper fixing cylinder are connected by a spring, connectors are installed at both ends of the inner side of the U-shaped device plate, the connectors are provided with plug interfaces, and a movable plate is installed at the lower part of the fixing plate.

[0008] Furthermore, the thickness of the movable plate is adapted to the thickness of the plug-in interface, and the lower portion of the movable plate is plugged into the interior of the plug-in interface.

[0009] Furthermore, a fixing hole is provided in the middle of the movable plate, and a plurality of threaded holes are provided at both ends of the U-shaped device plate, wherein a fixing knob is movably connected inside one of the threaded holes.

[0010] Furthermore, an external thread is provided in the middle of the fixing knob, and the external thread is connected to the threaded hole.

[0011] Furthermore, one end of the fixing knob is located on the inner side of the U-shaped device plate, and one end of the fixing knob is inserted into the interior of the fixing hole.

[0012] Furthermore, there are multiple lower fixing cylinders, upper fixing cylinders and springs, which are evenly distributed on the inner side of the U-shaped device plate.

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

[0014] The soft memory foam pillow in this utility model can be used to stabilize the skin during puncture, depending on the patient's body shape and age. This is especially true for patients with sagging skin. By tightening the loose skin and securing it to the underside of the arm, the skin at the puncture site becomes relatively tight, preventing blood vessels from slipping and facilitating puncture. The memory foam pillow is soft and comfortable, and patients experience no discomfort when in contact with the skin. This is especially true for patients with peripheral nerve damage caused by chemotherapy, who cannot touch cold objects. The soft surface effectively solves this problem.

[0015] The other side of the utility model is hard, and it is not easy to collapse when placed on a soft surface such as a bed. When performing central venous catheter maintenance, the tool is placed on the forearm to elevate the arm, so that the skin around the puncture point is away from the bed surface, and the puncture site is completely exposed, which is convenient for full disinfection and proper fixation. The patient does not need to raise the arm or lie on the side, which is convenient for the operator to operate in a standardized manner, reduces the patient's discomfort, and avoids the increase of infection due to incomplete disinfection or accidental contact of the disinfected skin with the contaminated bed surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The utility model is a schematic diagram of the overall assembly of a venipuncture fixing device.

[0017] Figure 2 The utility model is a cross-sectional schematic diagram of a venipuncture fixing device.

[0018] Figure 3 The utility model is a schematic diagram of the inner assembly of a venipuncture fixing device.

[0019] Figure 4 The utility model is a partial assembly diagram of a venipuncture fixing device.

[0020] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0021] 1. U-shaped mounting plate; 2. Fixing plate; 3. Memory foam; 4. Lower fixing cylinder; 5. Upper fixing cylinder; 6. Spring; 7. Connector; 8. Plug port; 9. Moving plate; 10. Fixing hole; 11. Threaded hole; 12. Fixing knob; 13. External thread. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To the attached Figure 4As shown:

[0027] The utility model provides a fixing device for venous puncture, comprising a U-shaped device plate 1, a fixing plate 2 is installed on the inner side of the U-shaped device plate 1, a memory foam 3 is installed on the fixing plate 2, a lower fixing cylinder 4 is installed on the inner side of the U-shaped device plate 1, an upper fixing cylinder 5 is installed on the lower surface of the fixing plate 2, the lower fixing cylinder 4 and the upper fixing cylinder 5 are connected by a spring 6, a plug-in connector 7 is installed at both ends of the inner side of the U-shaped device plate 1, a plug-in interface 8 is opened on the plug-in connector 7, a movable plate 9 is installed at the lower part of the fixing plate 2, the thickness of the movable plate 9 is adapted to the thickness of the plug-in interface 8, the lower part of the movable plate 9 is plugged into the inside of the plug-in interface 8, and the middle part of the movable plate 9 is opened. A fixing hole 10 is provided, and multiple threaded holes 11 are opened at both ends of the U-shaped device plate 1. A fixing knob 12 is movably connected inside one of the threaded holes 11. The patient's hand is placed on the memory foam 3. The pressure of the patient's hand drives the fixing plate 2 to move downward. When the fixing plate 2 moves downward, it can drive the lower movable plate 9 to move inside the plug-in port 8. At this time, the threaded hole 11 corresponding to the fixing hole 10 is found, and the fixing knob 12 is inserted into the inside of the threaded hole 11, and then rotated. At this time, one end of the fixing knob 12 is gradually inserted into the inside of the fixing hole 10, restricting the movable plate 9 so that the upper fixed plate 2 maintains a suitable height.

[0028] The middle portion of the fixing knob 12 is provided with an external thread 13, which is connected to the threaded hole 11. One end of the fixing knob 12 is located on the inner side of the U-shaped device plate 1, and one end of the fixing knob 12 is inserted into the interior of the fixing hole 10, so that the movable plate 9 can be restricted by the fixing knob 12.

[0029] There are multiple lower fixing tubes 4 , upper fixing tubes 5 and springs 6 , which are evenly distributed on the inner side of the U-shaped device plate 1 .

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the present invention, first rotate the fixing knob 12 to move one end of the fixing knob 12 out of the fixing hole 10, and then place the patient's hand on the memory foam 3. The pressure of the patient's hand drives the fixing plate 2 to move downward. When the fixing plate 2 moves downward, it can drive the lower movable plate 9 to move inside the plug-in port 8. At this time, find the threaded hole 11 corresponding to the fixing hole 10, insert the fixing knob 12 into the threaded hole 11, and then rotate it. At this time, one end of the fixing knob 12 is gradually inserted into the fixing hole 10, restricting the movable plate 9 so that the upper fixing plate 2 can maintain a suitable height.

[0032] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A venipuncture fixation device, comprising a U-shaped device plate (1), characterized in that: A fixing plate (2) is installed on the inner side of the U-shaped device plate (1), and a memory foam (3) is installed on the fixing plate (2). A lower fixing cylinder (4) is installed on the inner side of the U-shaped device plate (1), and an upper fixing cylinder (5) is installed on the lower surface of the fixing plate (2). The lower fixing cylinder (4) and the upper fixing cylinder (5) are connected by a spring (6). Connectors (7) are installed at both ends of the inner side of the U-shaped device plate (1), and a plug-in interface (8) is provided on the connector (7). A movable plate (9) is installed on the lower part of the fixing plate (2). A fixing hole (10) is provided in the middle of the movable plate (9), and a plurality of threaded holes (11) are provided at both ends of the U-shaped device plate (1), wherein a fixing knob (12) is movably connected inside one of the threaded holes (11).

2. A venipuncture fixation device according to claim 1, characterized in that: The thickness of the movable plate (9) is adapted to the thickness of the plug-in interface (8), and the lower portion of the movable plate (9) is plugged into the interior of the plug-in interface (8).

3. A venipuncture fixation device according to claim 1, characterized in that: An external thread (13) is provided in the middle of the fixing knob (12), and the external thread (13) is connected to the threaded hole (11).

4. A venipuncture fixation device according to claim 3, characterized in that: One end of the fixing knob (12) is located on the inner side of the U-shaped device plate (1), and one end of the fixing knob (12) is inserted into the interior of the fixing hole (10).

5. A venipuncture fixation device according to claim 1, characterized in that: The lower fixed cylinder (4), the upper fixed cylinder (5) and the spring (6) are multiple in number and are evenly distributed on the inner side of the U-shaped device plate (1).

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