CN221750834U - A radial artery puncture hand fixation device - Google Patents

Abstract

The utility model provides a radial artery puncture hand fixing device, comprising a fixing plate and a movable plate, wherein the movable plate can be rotatably arranged on the fixing plate, the fixing plate is provided with a first fixing piece for fixing the arm, the movable plate is provided with a second fixing piece for fixing the finger, an adjusting component for adjusting the rotation angle of the movable plate is provided at the connection between the fixing plate and the movable plate, the fixing plate is provided with a plurality of limiting holes in a circumferential array, the adjusting component cooperates with the limiting holes, the utility model fixes the patient's arm and palm through the first fixing piece and the second fixing piece, and then adjusts the inclination angle of the movable plate and the fixing plate through the adjustment component and the limiting holes, thereby adaptively adjusting the angle between the patient's palm and arm to highlight the wrist, improve the accuracy of radial artery positioning, and improve the success rate of puncture.

Description

A radial artery puncture hand fixation device

Technical Field

The utility model mainly relates to the technical field of radial artery puncture, in particular to a radial artery puncture hand fixing device.

Background Art

Radial artery puncture is a medical technology operation widely used in clinical work. It is one of the indispensable operations in the medical diagnosis and treatment process, especially an important way to collect blood gas samples and perform invasive arterial pressure monitoring for patients during surgical anesthesia. The radial artery is located just below the elbow. During the puncture operation, the patient's palm and arm need to be fixed. The existing patent application number: 202122486070.0, a radial artery puncture fixation device, uses multiple restraints to fix the patient's arm and palm in the existing radial artery puncture. The fixation effect is not good, and multiple restraints need to be operated separately. In order to solve the time-consuming and labor-intensive problems, the following scheme is proposed, which includes a fixed block, and an arm placement groove is provided on the top of the fixed block, a vertical shaft is rotatably installed on the top of the fixed block, and a mounting block is fixedly installed on the top of the vertical shaft, a lower groove is provided at the bottom of the mounting block, and the same movable plate is slidably installed on the left inner wall and the right inner wall of the lower groove, a long plate is fixedly installed on the bottom of the movable plate, and the long plate is located below the mounting block. Compared with the conventional radial artery puncture fixing device, the utility model abandons the usual restraining belt fixing method, has strong linkage, simple operation, good stability during fixation, and high safety factor during radial artery puncture.

With respect to the above-mentioned related technologies, the inventor believes that the existing technology makes the palm and the arm flush, and the inclination angle of the palm cannot be adjusted, resulting in inaccurate positioning of the radial artery during the puncture process, which reduces the success rate of the puncture. Furthermore, the patient's hand is prone to reflexively bend during the puncture, which will lead to inaccurate positioning of the radial artery and a decrease in the success rate of the puncture. The existing technology cannot adjust the restraint position, thereby failing to fix patients with palms of different lengths, and has a relatively low scope of use.

Utility Model Content

In order to solve the problems in the above-mentioned background technology, the utility model provides a radial artery puncture hand fixation device.

The utility model adopts the following technical scheme: a radial artery puncture hand fixing device, comprising a fixed plate and a movable plate, the movable plate can be rotatably arranged on the fixed plate, the fixed plate is provided with a first fixing piece for fixing the arm, the movable plate is provided with a second fixing piece for fixing the finger, an adjusting component for adjusting the rotation angle of the movable plate is provided at the connection between the fixed plate and the movable plate, the fixed plate is provided with a plurality of limiting holes in a circumferential array, and the adjusting component cooperates with the limiting holes.

Preferably, the fixed plate is installed with a rotating rod, the fixed plate is provided with a rotating groove, the movable plate is provided with rotating teeth, the rotating teeth are rotatably set in the rotating groove and fixedly connected to the rotating rod, the adjusting component is set on the rotating teeth, and the limiting hole is set in the rotating groove.

Preferably, the adjusting component includes a limit frame, a tension spring and a screw, the limit frame, the tension spring and the screw are arranged on the rotating teeth, the screw is threadedly connected to the rotating teeth, the limit frame is provided with a plurality of limit teeth, the screw pushes the limit frame so that the limit teeth extend into the corresponding limit holes, the tension spring is connected to the limit frame, and the tension spring is used to pull the limit frame to separate the limit teeth from the corresponding limit holes.

Preferably, the front ends of the plurality of limiting teeth of the limiting frame are all hemispherical in shape.

Preferably, a protective pad for protecting the wrist is provided at a position relative to the fixing plate.

Preferably, the movable plate is provided with a movable component for moving the position of the second fixing member, the movable plate is provided with a movable groove, and the movable component is slidably connected to the movable groove.

Preferably, the movable component includes a movable block, a telescopic block and a spring, the telescopic block is slidably connected to the movable block cavity, the end of the second fixing member is connected to the telescopic block, the spring is placed in the movable block cavity and connected to the telescopic block, the movable block is slidably connected to the movable groove, and the spring pushes the telescopic block to connect to the inner wall of the movable groove.

Preferably, a rack is provided on one side of the movable groove close to the opening, and a fixed tooth cooperating with the rack is provided at a relative position of the telescopic block.

Preferably, the first fixing member and the second fixing member are respectively a first Velcro and a second Velcro.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model fixes the patient's arm and palm through the first fixing member and the second fixing member, and then adjusts the inclination angle of the movable plate and the fixing plate through the adjustment component and the limit hole, and adaptively adjusts the angle of the patient's palm and arm to highlight the wrist, pad the wrist, and accurately locate the radial artery during hand palpation. The second fixing member fixes the index finger, middle finger, ring finger, and little hand to avoid reflex bending of the hand during puncture, thereby improving the accuracy of radial artery positioning and the success rate of puncture.

2. The utility model cooperates with a limit frame, a tension spring and a screw. The screw pushes the limit frame inward so that the limit teeth extend into the corresponding limit holes, thereby achieving the effect of fixing after adjustment. The screw moves outward and the tension spring is used to pull the limit frame to separate the limit teeth from the corresponding limit holes, thereby achieving the effect of unlocking, making it convenient to adjust the angle of the movable plate. The wrist is further raised by a protective pad to further highlight the wrist and protect it.

3. The utility model cooperates with a movable block, a telescopic block and a spring. The movable block moves in the movable groove to drive the second fixing member to move. After moving into place, the spring pushes the telescopic block to contact and fix the inner wall of the movable groove to achieve the purpose of adjustment. Furthermore, the fixing effect is improved by connecting the rack of the movable groove and the fixed teeth of the telescopic block.

The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a side view of the overall structure of the utility model;

Fig. 3 is a cross-sectional view of the structure of zone A of the present invention;

FIG4 is a cross-sectional view of the adjustment component of the present utility model;

FIG5 is a cross-sectional view of a moving component of the present utility model;

FIG6 is a second cross-sectional view of the moving component of the present invention.

In the figure: 1. fixed plate; 11. first Velcro; 12. protection pad; 13. rotating groove; 14. limiting hole; 15. rotating rod; 2. movable plate; 21. second Velcro; 22. movable groove; 221. rack; 23. rotating tooth; 3. adjusting component; 31. screw; 32. limiting frame; 33. tension spring; 4. moving component; 41. movable block; 42. telescopic block; 421. fixed tooth; 43. spring.

DETAILED DESCRIPTION

In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and/or" used herein includes any and all combinations of one or more related listed items.

Embodiment 1:

Please pay special attention to Figures 1 to 4, a radial artery puncture hand fixation device includes a fixed plate 1 and a movable plate 2, the movable plate 2 is rotatably arranged on the fixed plate 1, the fixed plate 1 is provided with a first fixing piece for fixing the arm, the movable plate 2 is provided with a second fixing piece for fixing the fingers, an adjusting component 3 for adjusting the rotation angle of the movable plate 2 is provided at the connection between the fixed plate 1 and the movable plate 2, the fixed plate 1 is provided with a plurality of limiting holes 14 in a circumferential array, and the adjusting component 3 cooperates with the limiting holes 14.

In this embodiment, the fixed plate 1 is installed with a rotating rod 15, the fixed plate 1 is provided with a rotating groove 13, the movable plate 2 is provided with a rotating tooth 23, the rotating tooth 23 is rotatably set in the rotating groove 13 and fixedly connected to the rotating rod 15, the adjusting component 3 is set on the rotating tooth 23, and the limiting hole 14 is set in the rotating groove 13.

In this embodiment, the adjusting component 3 includes a limit frame 32, a tension spring 33, and a screw 31. The limit frame 32, the tension spring 33 and the screw 31 are arranged on the rotating tooth 23. The screw 31 is threadedly connected to the rotating tooth 23. The limit frame 32 is provided with a plurality of limit teeth. The screw 31 pushes the limit frame 32 so that the limit teeth extend into the corresponding limit holes 14. The tension spring 33 is connected to the limit frame 32. The tension spring 33 is used to pull the limit frame 32 to separate the limit teeth from the corresponding limit holes 14.

In this embodiment, the front ends of the plurality of limiting teeth of the limiting frame 32 are all hemispherical in shape.

In this embodiment, a protection pad 12 for protecting the wrist is arranged at a relative position of the fixing plate 1 .

In this embodiment, the first fixing member and the second fixing member are a first Velcro 11 and a second Velcro 21 respectively.

It should be noted that, in the present invention, 24 limiting holes 14 are provided, and the adjustment angle is 15 degrees. The number of the limiting holes 14 includes but is not limited to 24.

The working principle of a radial artery puncture hand fixation device according to the first embodiment of the utility model is as follows:

When in use, fix the first Velcro 11 on the patient's arm, put the wrist on the protection pad 12, put the back of the hand on the movable plate 2, turn the screw 31 to move outward, the screw 31 is separated from the limit frame 32, and the tension spring 33 pulls the limit frame 32 to move. The movement of the limit frame 32 drives the limit teeth set therein to separate from the limit hole 14. At this time, the rotating teeth 23 of the movable plate 2 rotate in the rotating groove 13 through the rotating rod 15, driving the entire movable plate 2 to rotate along the rotating rod 15 as the axis. According to the toughness of the patient's wrist activity, adjust the position of the movable plate 2, and then turn the screw 31 to push the limit frame 32 inward to move, thereby pushing the limit teeth into the corresponding limit holes 14, pulling the tension spring 33 to stretch, and then fix the patient's index finger, middle finger, ring finger, and little hand through the second Velcro 21 to avoid reflex bending of the hand during puncture.

Embodiment 2:

This embodiment improves the installation of the second fixing member in the first embodiment, and adds a movable component 4 for adjusting the position of the second fixing member. Please refer to Figures 1, 5 and 6. The movable plate 2 is provided with a movable component 4 for moving the position of the second fixing member. The movable plate 2 is provided with a movable groove 22, and the movable component 4 is slidably connected to the movable groove 22.

In this embodiment, the movable component 4 includes a movable block 41, a telescopic block 42 and a spring 43. The telescopic block 42 is slidably connected to the cavity of the movable block 41, the end of the second fixed member is connected to the telescopic block 42, the spring 43 is placed in the cavity of the movable block 41 and connected to the telescopic block 42, the movable block 41 is slidably connected to the movable groove 22, and the spring 43 pushes the telescopic block 42 to connect to the inner wall of the movable groove 22; a rack 221 is provided on the side of the movable groove 22 close to the opening, and a fixed tooth 421 cooperating with the rack 221 is provided at a relative position of the telescopic block 42.

The working principle of a radial artery puncture hand fixation device according to the second embodiment of the utility model is as follows:

When in use, the adjustment steps are the same as those in Example 1. After the angle adjustment of the movable plate 2 is completed, the telescopic block 42 is pushed to move toward the cavity of the movable block 41 according to the size of the patient's palm, and the spring 43 is compressed. The fixed tooth 421 set in the telescopic block 42 is separated from the rack 221 of the movable groove 22, and the movable block 41 is moved while pushing the telescopic block 42. The movable block 41 moves in the movable groove 22, thereby moving the second Velcro 21 to a suitable position, releasing the telescopic block 42, and the spring 43 pushes the telescopic block 42 to move in the cavity of the movable block 41, thereby connecting the fixed tooth 421 to the rack 221 of the movable groove 22, and then fixing the patient's index finger, middle finger, ring finger, and little hand with the second Velcro 21 to avoid reflex bending of the hand during puncture.

The above description of the utility model is exemplified in combination with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims (9)

1. A radial artery puncture hand fixing device, characterized in that it comprises a fixed plate (1) and a movable plate (2), wherein the movable plate (2) is rotatably arranged on the fixed plate (1), the fixed plate (1) is provided with a first fixing member for fixing an arm, the movable plate (2) is provided with a second fixing member for fixing a finger, an adjusting component (3) for adjusting the rotation angle of the movable plate (2) is provided at the connection between the fixed plate (1) and the movable plate (2), the fixed plate (1) is provided with a plurality of limiting holes (14) in a circumferential array, and the adjusting component (3) cooperates with the limiting holes (14). 2. A radial artery puncture hand fixing device according to claim 1, characterized in that: the fixed plate (1) is installed with a rotating rod (15), the fixed plate (1) is provided with a rotating groove (13), the movable plate (2) is provided with a rotating tooth (23), the rotating tooth (23) is rotatably arranged in the rotating groove (13) and fixedly connected to the rotating rod (15), the adjusting component (3) is arranged on the rotating tooth (23), and the limiting hole (14) is arranged in the rotating groove (13). 3. A radial artery puncture hand fixing device according to claim 2, characterized in that: the adjusting component (3) includes a limit frame (32), a tension spring (33), and a screw (31); the limit frame (32), the tension spring (33) and the screw (31) are arranged on the rotating tooth (23); the screw (31) is threadedly connected to the rotating tooth (23); the limit frame (32) is provided with a plurality of limit teeth; the screw (31) pushes the limit frame (32) so that the limit teeth extend into the corresponding limit holes (14); the tension spring (33) is connected to the limit frame (32); the tension spring (33) is used to pull the limit frame (32) to separate the limit teeth from the corresponding limit holes (14). 4. A radial artery puncture hand fixation device according to claim 3, characterized in that the front ends of the plurality of limiting teeth of the limiting frame (32) are all hemispherical. 5. A radial artery puncture hand fixation device according to claim 4, characterized in that a protection pad (12) for protecting the wrist is arranged at a relative position of the fixing plate (1). 6. A radial artery puncture hand fixation device according to any one of claims 1-5, characterized in that: the movable plate (2) is provided with a movable component (4) for moving the position of the second fixing member, the movable plate (2) is provided with a movable groove (22), and the movable component (4) is slidably connected to the movable groove (22). 7. A radial artery puncture hand fixing device according to claim 6, characterized in that: the movable component (4) includes a movable block (41), a telescopic block (42) and a spring (43), the telescopic block (42) is slidably connected to the cavity of the movable block (41), the end of the second fixing member is connected to the telescopic block (42), the spring (43) is placed in the cavity of the movable block (41) and connected to the telescopic block (42), the movable block (41) is slidably connected to the movable groove (22), and the spring (43) pushes the telescopic block (42) to connect to the inner wall of the movable groove (22). 8. A radial artery puncture hand fixation device according to claim 7, characterized in that: a rack (221) is provided on one side of the movable groove (22) close to the opening, and a fixed tooth (421) cooperating with the rack (221) is provided at a relative position of the telescopic block (42). 9. A radial artery puncture hand fixing device according to claim 8, characterized in that the first fixing member and the second fixing member are respectively a first Velcro (11) and a second Velcro (21).