Radial artery ambulatory arterial blood gas puncture fixing device

Abstract

The present application relates to the technical field of medical devices, and particularly relates to a radial artery arteriole blood gas puncture fixing device. The radial artery arteriole blood gas puncture fixing device comprises a mounting frame, a notch is formed in the mounting frame, a bandage is symmetrically mounted on two sides of the mounting frame, a rotating cover plate is rotatably connected to the mounting frame, a control panel is mounted on the rotating cover plate, a universal coupling is symmetrically rotatably mounted on the inner wall of the mounting frame, a mounting plate is rotatably mounted on the end of the universal coupling, and a guide tube is connected to the mounting plate. The universal coupling and the mounting plate are arranged, so that the guide tube can be freely adjusted in angle and position in three-dimensional space, can be fitted to the actual bending trend of the radial artery in three-dimensional space, and can solve the problem that the prior art can only adjust the angle in a single plane. When operating, the angle of the mounting plate and the guide tube is flexibly adjusted through the universal coupling, the universal joint is locked by an electromagnet after the position is determined, so as to fix the guide tube. The structure enables the puncture needle to be inserted along the real track of the blood vessel.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, and more particularly to a radial artery blood gas puncture and fixation device. Background Technology

[0002] In clinical medical practice, arterial blood gas analysis is an important means of assessing a patient's respiratory function and acid-base balance. The radial artery is the most commonly used puncture site because of its superficial location, easy access, and absence of important nerves nearby.

[0003] In existing technologies, such as the adjustable-angle radial artery puncture guide compressor disclosed in patent publication number CN111956292B, the angle of the puncture guide groove can be adjusted in a single plane by setting the relative rotation between the angle adjustment connecting block and the transparent fixing plate, and the device is fixed at the patient's wrist using Velcro. However, due to the anatomical variability and tortuous course of the radial artery, especially in some patients, its path does not extend in a straight line along the forearm, but presents a certain degree of curvature or deviation. The aforementioned patent only allows the angle adjustment connecting block to adjust the angle in the same plane, which cannot adapt to the actual course of the radial artery in three-dimensional space. When the radial artery has lateral deviation or three-dimensional curvature, the puncture needle is still forced to enter along the long axis of the arm, making it difficult to conform to the actual trajectory of the blood vessel, thereby increasing the puncture failure rate, the risk of vascular damage, and patient discomfort. Summary of the Invention

[0004] In view of this, the present invention provides a radial artery blood gas puncture and fixation device, which can overcome the shortcomings of existing radial artery puncture and fixation devices that can only adjust the angle in a single plane, cannot adapt to the three-dimensional curvature of the radial artery, resulting in low puncture accuracy and easy damage to blood vessels.

[0005] The technical solution is as follows: A radial artery blood gas puncture fixation device includes: a mounting frame with a notch; straps symmetrically mounted on both sides of the mounting frame; a rotating cover plate rotatably connected to the mounting frame; a control panel mounted on the rotating cover plate; a universal coupling symmetrically rotatably mounted on the inner wall of the mounting frame; a mounting plate rotatably mounted on the end of the universal coupling; a guide tube connected to the mounting plate; a locking component disposed within the universal coupling for locking the universal coupling; and a compression component disposed within the mounting frame for compressing the area in front of the artery punctured by the puncture needle.

[0006] Preferably, the locking assembly includes: an electromagnet, which is installed at intervals in each universal joint of the universal coupling, and the electromagnet can attract and fix the rotating ball of the universal joint through magnetic force; and a control switch, which is installed on the mounting plate.

[0007] Preferably, the compression assembly includes: a U-shaped guide rail connected to the inner bottom of the mounting frame; an air cushion installed inside the U-shaped guide rail; non-woven fabric connected to the bottom of the air cushion; a sliding seat slidably connected to the U-shaped guide rail; a rotating cylinder rotatably connected to the sliding seat, with the air cushion wrapped around the rotating cylinder, one end of the air cushion connected to the rotating cylinder; a moving mechanism disposed on the U-shaped guide rail for driving the sliding seat to move; a detection mechanism disposed on the sliding seat for detecting the puncture status of the puncture needle; and a control mechanism disposed within the mounting frame for controlling the expansion or contraction of the air cushion.

[0008] Preferably, the moving mechanism includes: a connecting seat symmetrically connected to the top of the U-shaped guide rail; and an electric push rod mounted on the connecting seat, with the telescopic rod of the electric push rod connected to the sliding seat.

[0009] Preferably, the detection mechanism includes: a fixed plate connected to the side of the sliding seat; and a laser sensor installed at the bottom of the fixed plate.

[0010] Preferably, the control mechanism includes: a connecting cylinder connected to the mounting frame; a lead screw motor mounted on the connecting cylinder; a piston plate slidably connected to the inner side of the connecting cylinder, and the lead screw of the lead screw motor is threadedly connected to the piston plate; a connecting pipe with the air cushion and the connecting cylinder connected at both ends respectively and kept in communication; and a pressure detector mounted on the connecting pipe.

[0011] Preferably, it also includes a rubber gasket, which is attached to the mounting plate and covers the control switch.

[0012] Preferably, it also includes an anti-slip pad attached to the bottom of the mounting frame.

[0013] The beneficial effects of this invention are as follows: 1. By setting a universal coupling and a mounting plate, this invention allows the guide tube to be freely adjusted in angle and position in three-dimensional space, which can conform to the actual bending direction of the radial artery in three-dimensional space. This solves the problem that the existing technology can only adjust the angle in a single plane. During operation, the angle between the mounting plate and the guide tube is flexibly adjusted by the universal coupling. After the position is determined, the universal joint is locked by an electromagnet to fix the guide tube. This structure allows the puncture needle to enter along the actual trajectory of the blood vessel, reducing the puncture failure rate and reducing vascular damage and patient pain.

[0014] 2. This invention uses a laser sensor to detect the puncture status in real time. After the puncture needle is withdrawn, the control mechanism is automatically triggered. The lead screw motor drives the piston plate to move, causing the air cushion to expand and temporarily compress the front end of the artery to stop bleeding. At the same time, the electric push rod pushes the sliding seat forward, driving the rotating cylinder to lay the air cushion and the bottom non-woven fabric to the puncture position, achieving precise and uniform compression. The air pressure detector monitors the air cushion pressure in real time to ensure that the compression force is moderate. This process automates and standardizes the hemostasis operation, reduces the burden on medical staff, and improves the safety and efficiency of hemostasis. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the unfolded structure of the rotating cover plate, universal coupling, and mounting plate of the present invention.

[0017] Figure 3 This is a schematic diagram of the specific structure of the universal coupling and electromagnet of the present invention.

[0018] Figure 4 This is a schematic diagram showing the installation of the control switch and rubber pad of the present invention.

[0019] Figure 5 This is a schematic diagram of the installation of the compression component of the present invention.

[0020] Figure 6 This is a schematic diagram of the specific structure of the U-shaped guide rail, air cushion, sliding seat and rotating cylinder of the present invention.

[0021] Figure 7 This is a schematic diagram of the specific structure of the sliding seat, fixing plate and laser sensor of the present invention.

[0022] Figure 8 This is a schematic diagram of the specific structure of the control mechanism of the present invention.

[0023] Figure 9 This is a schematic diagram of the installation of the anti-slip mat of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1-Mounting frame, 101-Notch, 2-Strap, 3-Rotating cover plate, 4-Control panel, 5-Universal coupling, 6-Mounting plate, 7-Guide tube, 8-Electromagnet, 9-Control switch, 10-U-shaped guide rail, 11-Air cushion, 1101-Non-woven fabric, 12-Sliding seat, 13-Rotating cylinder, 14-Connecting seat, 15-Electric push rod, 16-Fixing plate, 17-Laser sensor, 18-Connecting cylinder, 19-Screw motor, 20-Piston plate, 21-Connecting tube, 22-Air pressure detector, 23-Rubber pad, 24-Anti-slip pad. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example: A device for fixing arterial blood gas puncture of the radial artery, such as... Figures 1-8As shown, the device includes a mounting frame 1, straps 2, a rotating cover plate 3, a control panel 4, a universal coupling 5, a mounting plate 6, a guide tube 7, a locking component, and a compression component. The top of the mounting frame 1 is open, and a notch 101 is provided in the middle of the bottom of the mounting frame 1. Straps 2 are symmetrically installed on both the left and right sides of the mounting frame 1. The rotating cover plate 3 is rotatably connected to the upper rear side of the mounting frame 1. The control panel 4 is installed on the top of the rotating cover plate 3. Universal couplings 5 ​​are symmetrically installed on the left and right sides of the front inner wall of the mounting frame 1. The mounting plate 6 is rotatably installed between the upper ends of the two universal couplings 5. The guide tube 7 is connected to the middle of the bottom of the mounting plate 6. The universal coupling 5 is provided with a locking component for locking itself. The mounting frame 1 is provided with a compression component for compressing the artery in front of the puncture needle.

[0027] like Figure 3 and Figure 4 As shown, the locking assembly includes an electromagnet 8 and a control switch 9. Each universal joint of the two universal couplings 5 ​​is equipped with an electromagnet 8, and the electromagnet 8 can attract and fix the rotating ball of the universal joint through magnetic force. The control switch 9 is installed on the top of the mounting plate 6.

[0028] like Figures 5-8As shown, the compression assembly includes a U-shaped guide rail 10, an air cushion 11, a non-woven fabric 1101, a sliding seat 12, a rotating cylinder 13, a moving mechanism, a detection mechanism, and a control mechanism. The U-shaped guide rail 10 is connected to the inner bottom of the mounting frame 1. The air cushion 11 is mounted on the rear of the U-shaped guide rail 10. The non-woven fabric 1101 is detachably mounted on the bottom of the air cushion 11. The sliding seat 12 is slidably connected to the U-shaped guide rail 10, and the rotating cylinder 13 is rotatably connected to the sliding seat 12. The air cushion 11 is wrapped around the rotating cylinder 13, and the front end of the air cushion 11 is connected to the rotating cylinder 13. The U-shaped guide rail 10 is equipped with a moving mechanism for driving the sliding seat 12 to move. The sliding seat 12 is equipped with a detection mechanism for detecting the puncture status of the puncture needle. The mounting frame 1 is equipped with a control mechanism for controlling the expansion or contraction of the air cushion 11. The moving mechanism includes a connecting seat 14 and an electric push rod 15. The U-shaped guide rail 10... The top is connected to two connecting seats 14, and an electric push rod 15 is installed between the two connecting seats 14. The telescopic rod of the electric push rod 15 is connected to the sliding seat 12. The detection mechanism includes a fixed plate 16 and a laser sensor 17. The fixed plate 16 is connected to the upper front side of the sliding seat 12, and the laser sensor 17 is installed at the bottom of the fixed plate 16. The laser sensor 17 is located directly above the notch 101. The control mechanism includes a connecting cylinder 18, a lead screw motor 19, a piston plate 20, a connecting pipe 21, and a pressure detector 22. The connecting cylinder 18 is connected to the left side inside the mounting frame 1. The lead screw motor 19 is installed on the connecting cylinder 18. The piston plate 20 is slidably connected to the inner side of the connecting cylinder 18, and the lead screw of the lead screw motor 19 is threadedly connected to the piston plate 20. The air cushion 11 and the connecting cylinder 18 are connected and kept in communication by a connecting pipe 21. The pressure detector 22 is installed on the connecting pipe 21.

[0029] In the initial state, the universal coupling 5 is folded and stored inside the mounting frame 1, the electromagnet 8 is de-energized, and the universal coupling 5 is unlocked. When the device is needed, first, the mounting frame 1 is fixed to the patient's wrist with the strap 2, exposing the puncture area at the notch 101. Then, the rotating cover 3 is rotated upwards to open, and the mounting plate 6 is pulled upwards. According to the three-dimensional direction of the radial artery in the puncture area, the mounting plate 6 and guide tube 7 are adjusted to a suitable angle and position. During this process, the universal coupling 5 rotates and deforms to adapt to the spatial position adjustment of the mounting plate 6. After adjustment, the control switch is pressed. 9. Control switch 9 sends a signal, control panel 4 receives the signal and controls electromagnet 8 to be energized and magnetized. Electromagnet 8 attracts the rotating ball inside the universal joint through magnetic force, thereby locking universal coupling 5 and fixing the position of mounting plate 6 and guide tube 7. After that, puncture operation can be performed along guide tube 7. After puncture, laser sensor 17 monitors the status of the puncture area in real time. When it detects that the puncture needle has been pulled out, laser sensor 17 sends a signal. After receiving the signal, control panel 4 first controls lead screw motor 19 to drive piston plate 20 to move backward, and pressurizes air in connecting cylinder 18 into air cushion 11 through connecting tube 21, causing air cushion 11 to expand and make air cushion 1... First, pressure is applied to the proximal end of the puncture point. Simultaneously, the control panel 4 controls the electric push rod 15 to drive the sliding seat 12 and rotating cylinder 13 to move forward along the U-shaped guide rail 10. The rotating cylinder 13 lays the inflated air cushion 11 forward, so that the non-woven fabric 1101 at the bottom of the air cushion 11 covers and presses against the puncture point, achieving pressure hemostasis. During this process, the air pressure detector 22 monitors the air pressure inside the air cushion 11 in real time. When the air pressure reaches the preset value, the air pressure detector 22 sends a signal. After receiving the signal, the control panel 4 controls the lead screw motor 19 to stop working. After hemostasis is completed, the control panel 4 controls the lead screw motor 19 to drive the piston plate 20 to move forward and reset. The tube 21 draws the air out of the air cushion 11 back to the connecting cylinder 18, causing the air cushion 11 to shrink and return to its original state. At the same time, the control panel 4 controls the electric push rod 15 to drive the sliding seat 12 and the rotating cylinder 13 to move backward and reset. The rotating cylinder 13 rolls up the air cushion 11 and returns it to its original state. Then, the control switch 9 is pressed again. The control switch 9 sends a signal, and the control panel 4 receives the signal and controls the electromagnet 8 to de-energize, releasing the lock on the universal coupling 5. After that, the mounting plate 6 and the guide tube 7 can be moved and reset, so that the universal coupling 5 can be folded back and stored inside the mounting frame 1. Then, the rotating cover plate 3 is rotated downward and reset. Finally, the strap 2 is untied and the mounting frame 1 is removed from the patient's wrist.

[0030] like Figure 4 As shown, it also includes a rubber pad 23. The top of the mounting plate 6 is connected to the rubber pad 23, and the rubber pad 23 covers the control switch 9. This can effectively prevent the control switch 9 from being accidentally triggered due to accidental contact, thereby preventing the universal coupling 5 from being accidentally locked or unlocked when it is not properly adjusted.

[0031] like Figure 9 As shown, it also includes an anti-slip pad 24. The bottom of the mounting frame 1 is connected to the anti-slip pad 24, which is used to increase the friction between the mounting frame 1 and the patient's wrist skin surface, prevent the device from sliding or shifting during fixation or use, and ensure the stability of the puncture positioning and compression hemostasis process.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A device for fixing arterial blood gas puncture at the radial artery, characterized in that, It includes: a mounting frame (1) with a notch (101) on it; a strap (2) symmetrically installed on both sides of the mounting frame (1); a rotating cover plate (3) rotatably connected to the mounting frame (1); a control panel (4) installed on the rotating cover plate (3); a universal coupling (5) symmetrically rotatably installed on the inner wall of the mounting frame (1); a mounting plate (6) rotatably installed on the end of the universal coupling (5); a guide tube (7) connected to the mounting plate (6); a locking component, set inside the universal coupling (5), used to lock the universal coupling (5); and a compression component, set inside the mounting frame (1), used to compress the artery in front of the puncture needle.

2. The radial artery blood gas puncture and fixation device according to claim 1, characterized in that, The locking assembly includes: an electromagnet (8), which is installed at intervals in each universal joint of the universal coupling (5), and the electromagnet (8) can attract and fix the rotating ball of the universal joint through magnetic force; and a control switch (9), which is installed on the mounting plate (6).

3. The radial artery blood gas puncture and fixation device according to claim 1, characterized in that, The compression assembly includes: a U-shaped guide rail (10) connected to the inner bottom of the mounting frame (1); an air cushion (11) installed inside the U-shaped guide rail (10); a non-woven fabric (1101) connected to the bottom of the air cushion (11); a sliding seat (12) slidably connected to the U-shaped guide rail (10); a rotating cylinder (13) rotatably connected to the sliding seat (12), with the air cushion (11) wrapped around the rotating cylinder (13), and one end of the air cushion (11) connected to the rotating cylinder (13); a moving mechanism set on the U-shaped guide rail (10) for driving the sliding seat (12) to move; a detection mechanism set on the sliding seat (12) for detecting the puncture status of the puncture needle; and a control mechanism set inside the mounting frame (1) for controlling the expansion or contraction of the air cushion (11).

4. The radial artery blood gas puncture and fixation device according to claim 3, characterized in that, The moving mechanism includes: a connecting seat (14), symmetrically connected to the top of the U-shaped guide rail (10); an electric push rod (15), mounted on the connecting seat (14), and the telescopic rod of the electric push rod (15) is connected to the sliding seat (12).

5. The radial artery blood gas puncture and fixation device according to claim 3, characterized in that, The detection mechanism includes: a fixed plate (16) connected to the side of the sliding seat (12); and a laser sensor (17) installed at the bottom of the fixed plate (16).

6. The radial artery blood gas puncture and fixation device according to claim 3, characterized in that, The control mechanism includes: a connecting cylinder (18) connected to the mounting frame (1); a lead screw motor (19) mounted on the connecting cylinder (18); and a piston plate (20) slidably connected to the inner side of the connecting cylinder (18), with the lead screw of the lead screw motor (19) threadedly connected to the piston plate (20). The connecting pipe (21) is connected to the air cushion (11) and the connecting cylinder (18) at both ends and kept in communication; the air pressure detector (22) is installed on the connecting pipe (21).

7. The radial artery blood gas puncture and fixation device according to claim 2, characterized in that, It also includes: a rubber pad (23) attached to the mounting plate (6), and the rubber pad (23) covering the control switch (9).

8. The radial artery blood gas puncture and fixation device according to claim 1, characterized in that, It also includes: an anti-slip pad (24), which is attached to the bottom of the mounting frame (1).

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