Arm fixing device for clinical blood sampling in large internal medicine department

Abstract

The arm fixing device comprises a bottom fixing seat and an arm fixing device body, an installation cavity is formed in the bottom fixing seat, a rotating shaft is rotatably installed on the inner wall of the bottom of the installation cavity, and the top end of the rotating shaft rotatably penetrates to the position above the bottom fixing seat. According to the arm fixing device, the arm can be conveniently fixed, and the angle position of the arm fixing device body can be flexibly adjusted according to actual requirements in the fixing process, so that the individual requirements of different patients for the arm angle are better met, the comfort of the patients in the using process is ensured, and the practicability is high. The angle requirement of a doctor during blood sampling can be better met; and after adjustment, through meshing positioning of the positioning clamping teeth and the positioning gear, it can be ensured that the adjusted angle is fixed more firmly, the situation of angle deviation or loosening is not prone to occurring, the use effect and safety are greatly guaranteed, and the adjustable angle adjusting device can better meet various different use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of arm fixing devices, in particular to an arm fixing device for clinical blood collection in general internal medicine. Background Art

[0002] As we all know, the arm fixation device for clinical blood collection in general internal medicine is a tool specially used to fix the patient's arm during the blood collection process. It is usually composed of fixing parts, cushions, etc., which can help patients keep their arms stable, facilitate medical staff to perform blood collection operations, and also improve the accuracy and safety of blood collection.

[0003] In the existing fixing device, it is a common way to fix the arm with a fixing belt with Velcro. Its working principle is to wrap the arm and use the Velcro to apply pressure to achieve fixation. This structure is simple and easy to use, and the tightness can be adjusted as needed.

[0004] However, the existing arm fixation technology generally has the following problems: the angle adjustment is not flexible and convenient enough, and it cannot accurately meet the personalized needs of different patients for the arm angle, causing patients to feel uncomfortable during use and causing inconvenience to doctors in blood drawing and other operations; and the angle fixation after adjustment is not firm enough, and it is easy to cause angle deviation or looseness, affecting the use effect and safety; it cannot adapt well to various different use scenarios. These problems have seriously affected the use effect and practicality of the arm fixation device and need to be solved urgently. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an arm fixing device for clinical blood collection in general internal medicine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An arm fixing device for clinical blood collection in general internal medicine comprises a bottom fixing seat and an arm fixing device body, wherein the bottom fixing seat is provided with a mounting cavity, a rotating shaft is rotatably mounted on the bottom inner wall of the mounting cavity, and the top end of the rotating shaft rotates through the top of the bottom fixing seat and is fixedly connected to the bottom center of the arm fixing device body;

[0008] A positioning gear is fixedly sleeved on the rotating shaft, and a positioning tooth is movably engaged on the right side of the positioning gear. A movable block is fixedly connected to the right side of the positioning tooth. An internal fixing seat is fixedly installed on the right inner wall of the installation cavity, and a cavity is provided on the internal fixing seat, and the right end of the movable block movably penetrates into the cavity; a threaded groove is provided on the right end of the movable block, and a screw is threadedly connected to the right end of the movable block through the threaded groove, a stepping motor is fixedly installed in the cavity, and the output shaft of the stepping motor is fixedly connected to the right end of the screw.

[0009] Furthermore, an annular groove is provided on the top of the bottom fixing seat located outside the circumference of the rotating shaft, and multiple supporting balls are rollingly installed on the bottom of the arm fixing device body located on both sides of the rotating shaft, and the bottom sides of the multiple supporting balls are all rollingly arranged in the annular groove along the circumferential direction.

[0010] Furthermore, a mounting hole is provided on the top inner wall of the mounting cavity, a bearing is fixedly installed in the mounting hole, and the rotating shaft is rotatably installed on the bearing.

[0011] Furthermore, sliding blocks are symmetrically arranged on the movable block in the cavity, sliding rails are symmetrically arranged on the inner wall of the cavity, and the sliding blocks are slidably installed on the sliding rails in a horizontal direction.

[0012] Furthermore, a fixing belt for fixing the arm is provided on the main body of the arm fixing device, and Velcro is provided on the fixing belt. An arm fixing groove is also provided on the top of the main body of the arm fixing device, and a protective pad is also provided in the arm fixing groove.

[0013] Furthermore, a controller is disposed on the front side of the bottom fixing seat, and the controller is electrically controlled and connected to the stepping motor.

[0014] By adopting the above structure, the utility model has the following beneficial effects:

[0015] The utility model is not only convenient for fixing the arm, but also can flexibly adjust the angle position of the arm fixing device body according to actual needs during the fixing process, so as to better meet the personalized needs of different patients for the arm angle, ensure the comfort of the patient during use, and better adapt to the angle required by the doctor when drawing blood; and after adjustment, the positioning tooth and the positioning gear are engaged and positioned, so that the adjusted angle can be fixed more firmly, and the angle is not prone to deviation or loosening, which greatly ensures the use effect and safety, and can better adapt to various different use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an arm fixing device for clinical blood collection in general internal medicine proposed by the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 For this utility model Figure 2 The structural diagram of the enlarged part A in the middle;

[0019] Figure 4 It is a schematic diagram of the structure among the rotating shaft, the positioning latch teeth and the positioning gear in the utility model.

[0020] In the figure: 1. arm fixing device body; 101. arm fixing groove; 102. fixing belt; 2. bottom fixing seat; 200. mounting cavity; 201. annular groove; 3. rotating shaft; 4. supporting ball; 5. internal fixing seat; 501. cavity; 6. stepping motor; 7. screw; 8. movable block; 801. threaded groove; 9. positioning tooth; 10. positioning gear; 11. bearing; 12. slider; 13. controller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 , an arm fixing device for clinical blood collection in general internal medicine, comprising a bottom fixing seat 2 and an arm fixing device body 1, a mounting cavity 200 is provided on the bottom fixing seat 2, a rotating shaft 3 is rotatably installed on the bottom inner wall of the mounting cavity 200, the top of the rotating shaft 3 rotates and penetrates to the top of the bottom fixing seat 2 and is fixedly connected to the bottom center of the arm fixing device body 1; a positioning gear 10 is fixedly sleeved on the rotating shaft 3, and a positioning latch 9 is also movably engaged on the right side of the positioning gear 10, and a movable block 8 is fixedly connected to the right side of the positioning latch 9, an internal fixing seat 5 is fixedly installed on the right inner wall of the mounting cavity 200, a cavity 501 is provided on the internal fixing seat 5, and the right end of the movable block 8 movably penetrates into the cavity 501; a threaded groove 801 is provided on the right end of the movable block 8, a screw 7 is threadedly connected to the right end of the movable block 8 through the threaded groove 801, a stepping motor 6 is fixedly installed in the cavity 501, and the output shaft of the stepping motor 6 is fixedly connected to the right end of the screw 7.

[0023] In this embodiment, an annular groove 201 is provided on the top of the bottom fixing seat 2 located outside the circumference of the rotating shaft 3, and a plurality of supporting balls 4 are rollingly installed on the bottom of the arm fixing device main body 1 located on both sides of the rotating shaft 3, and the bottom sides of the plurality of supporting balls 4 are all rollingly arranged in the annular groove 201 along the circumferential direction.

[0024] In this embodiment, a mounting hole is provided on the top inner wall of the mounting cavity 200, a bearing 11 is fixedly installed in the mounting hole, and the rotating shaft 3 is rotatably installed on the bearing 11; sliders 12 are symmetrically arranged on the movable block 8 located in the cavity 501, and slide rails are symmetrically arranged on the inner wall of the cavity 501, and the sliders 12 are slidably installed on the slide rails along the horizontal direction.

[0025] In this embodiment, a fixing belt 102 for fixing the arm is provided on the arm fixing device body 1, and Velcro is provided on the fixing belt 102. An arm fixing groove 101 is also provided on the top of the arm fixing device body 1, and a protective pad is also provided in the arm fixing groove 101. A controller 13 is provided on the front side of the bottom fixing seat 2, and the controller 13 is electrically controlled and connected to the stepping motor 6.

[0026] like Figure 1-4 As shown, the arm fixing device for clinical blood collection in the general internal medicine department, when the arm needs to be fixed during blood collection, the arm is fixed in the arm fixing groove 101 by wrapping the fixing belt 102 around the arm and applying pressure by the adhesion of Velcro. In addition, the angle position of the arm when fixed can be adjusted according to actual needs, that is, the stepper motor 6 drives the screw 7 to rotate first, so that the movable block 8 is threaded to the right on the screw 7 through the thread groove 801, and the movable block 8 drives the positioning tooth 9 to move right when it moves to the right, and then the meshing positioning of the positioning tooth 9 on the positioning gear 10 is released first, and then the patient's arm can be rotated to the required angle position in any direction through the arm fixing device body 1 and the rotating shaft 3, and at the same time, the support ball 4 is rolled and supported in the annular groove 201, which can play a role in stable support; finally, the stepper motor 6 drives the screw 7 to rotate in the opposite direction, so that the positioning tooth 9 can be meshed and positioned with the positioning gear 10. Ultimately, this not only facilitates flexible adjustment of the angle position of the arm fixing device body 1, so as to better meet the personalized needs of different patients for the arm angle and ensure the patient's comfort during use, but also can better adapt to the angle required by the doctor when drawing blood; and after adjustment, the positioning tooth 9 and the positioning gear 10 are engaged and positioned to ensure that the adjusted angle is fixed more firmly, and it is not easy to deviate or loosen the angle, which greatly ensures the use effect and safety, and can better adapt to various different blood collection needs.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An arm fixing device for clinical blood collection in general medicine, comprising a bottom fixing seat (2) and an arm fixing device body (1), characterized in that: The bottom fixing seat (2) is provided with a mounting cavity (200), a rotating shaft (3) is rotatably mounted on the bottom inner wall of the mounting cavity (200), the top end of the rotating shaft (3) is rotatably penetrated to the top of the bottom fixing seat (2) and is fixedly connected to the bottom center of the arm fixing device body (1); A positioning gear (10) is fixedly sleeved on the rotating shaft (3), and a positioning latch (9) is movably engaged on the right side of the positioning gear (10), and a movable block (8) is fixedly connected to the right side of the positioning latch (9). An internal fixing seat (5) is fixedly installed on the right inner wall of the installation cavity (200), and a cavity (501) is provided on the internal fixing seat (5), and the right end of the movable block (8) movably penetrates into the cavity (501); a thread groove (801) is provided on the right end of the movable block (8), and a screw rod (7) is threadedly connected to the right end of the movable block (8) through the thread groove (801); a stepping motor (6) is fixedly installed in the cavity (501), and the output shaft of the stepping motor (6) is fixedly connected to the right end of the screw rod (7).

2. The arm fixing device for clinical blood collection in general medicine according to claim 1, characterized in that: An annular groove (201) is provided at the top of the bottom fixing seat (2) located outside the circumference of the rotating shaft (3), and a plurality of supporting balls (4) are rollingly mounted at the bottom of the arm fixing device body (1) located on both sides of the rotating shaft (3), and the bottom sides of the plurality of supporting balls (4) are all rollingly arranged in the annular groove (201) along the circumferential direction.

3. The arm fixing device for clinical blood collection in general medicine according to claim 1, characterized in that: A mounting hole is provided on the top inner wall of the mounting cavity (200), a bearing (11) is fixedly mounted in the mounting hole, and the rotating shaft (3) is rotatably mounted on the bearing (11).

4. The arm fixing device for clinical blood collection in general medicine according to claim 1, characterized in that: Slide blocks (12) are symmetrically arranged on the movable block (8) located in the cavity (501), slide rails are symmetrically arranged on the inner wall of the cavity (501), and the slide blocks (12) are slidably installed on the slide rails in a horizontal direction.

5. The arm fixing device for clinical blood collection in general medicine according to claim 1, characterized in that: The arm fixing device body (1) is provided with a fixing belt (102) for fixing the arm, and the fixing belt (102) is provided with Velcro. The top of the arm fixing device body (1) is also provided with an arm fixing groove (101), and a protective pad is also provided in the arm fixing groove (101).

6. The arm fixing device for clinical blood collection in general medicine according to claim 1, characterized in that: A controller (13) is arranged on the front side of the bottom fixing seat (2), and the controller (13) is electrically controlled and connected to the stepping motor (6).

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