Arm fixing device

Abstract

The utility model relates to the technical field of medical instruments, and discloses an arm fixing device which comprises a fixing table, two sets of fixing seats are arranged above the fixing table, fixing grooves are formed in the lower ends of the fixing seats, the arm fixing device further comprises fixing blocks, piston grooves, air guide pipes and pressure sensors, and the fixing blocks are connected to the inner sides of the fixing grooves in a sliding mode. The arm of a patient can be positioned through the fixing groove in the bottom side of the fixing seat, the electromagnetic valve is opened, the piston groove can be inflated through the air guide pipe, the fixing block can be pushed to move downwards in the fixing groove through the connecting rod on the bottom side of the piston, and therefore the arm of the patient in the fixing groove is clamped and fixed. The air pressure in the piston groove can be detected through the pressure sensor, so that the extrusion force of the fixing block on the arm of the patient is detected and controlled, and the problems that an existing arm fixing nursing device is not beneficial to accurately controlling the clamping force of the fixing block on the arm of the patient, and the using effect is affected are further solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an arm fixing device. Background Art

[0002] Nephrology Department is a clinical department set up in hospitals at all levels for the diagnosis and treatment of kidney disease. Kidney disease is a common and frequently occurring disease. Common renal replacement therapies include kidney transplantation, hemodialysis and peritoneal dialysis. Dialysis therapy is a treatment method that allows components in body fluids to be excreted from the body through a semipermeable membrane. It can generally be divided into hemodialysis and peritoneal dialysis. During hemodialysis, the arm needs to be fixed to ensure the stability of the dialysis from the outside.

[0003] After searching, the publication number is CN116983165A, which discloses an arm fixing and nursing device for dialysis in the Department of Nephrology. The connecting plate and the tooth groove cooperate with the second spring, the third tooth plate and the pull rod to realize the elastic pushing of the teeth to complete the locking and fixing of the top cover plate, so as to adjust the tightness of the arm fixation according to the required degree.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art that have not been solved: in the above case, it is impossible to accurately control the locking force of the top cover plate on the arm during use. When the locking force of the top cover plate is too large, it affects the conveying degree. When the locking force of the top cover plate is too small, it affects the use effect.

[0005] Therefore, we propose an arm fixing device that can solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an arm fixing device, which solves the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an arm fixing device, comprising a fixing platform, two groups of fixing seats are arranged above the fixing platform, a fixing groove is opened at the lower end of the fixing seat, and also comprises a fixing block, a piston groove, an air guide pipe and a pressure sensor, the fixing block is slidably connected to the inner side of the fixing groove, the piston groove is opened inside the upper end of the fixing seat, a piston is slidably connected inside the piston groove, connecting rods are vertically fixedly installed on both sides of the lower surface of the piston, the bottom ends of the two groups of connecting rods vertically penetrate the top inner wall of the fixing groove and are fixedly connected to the upper surface of the fixing block, two groups of springs are arranged on the inner side of the piston groove, the air guide pipe is fixedly installed on the top of the fixing seat, and the bottom end of the air guide pipe is connected to the inside of the top of the piston groove, an electromagnetic valve is arranged inside the air guide pipe, and the pressure sensor is fixedly connected to one side of the top inner wall of the piston groove.

[0008] As an optional solution of the technical solution of the present application, the two groups of springs are respectively arranged on the outside of the connecting rod, and the top and bottom ends of the springs are respectively fixedly connected to the bottom side of the piston and the bottom inner wall of the piston groove, and the connecting rod is matched with the size of the piston groove.

[0009] As an optional solution of the technical solution of the present application, slide grooves are horizontally opened on both sides of the upper surface of the fixed platform, and a slider is fixedly installed on the bottom side of the fixed seat. The two groups of the fixed seats are slidably connected to the two groups of slide grooves on the upper surface of the fixed platform through the slider.

[0010] As an optional solution of the technical solution of the present application, a threaded rod is rotatably connected to the interior of the slide groove through a bearing, the threaded rod horizontally passes through the slider and is threadedly connected to the slider, and the threads on the front and rear sides of the threaded rod have opposite rotation directions.

[0011] As an optional solution of the technical solution of the present application, silicone pads are bonded to the bottom inner wall of the fixing groove and the bottom side of the fixing block, and the sizes of the fixing groove and the fixing block match.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the patient's arm can be positioned through the fixing groove on the bottom side of the fixing seat, the solenoid valve can be opened, and air can be inflated into the piston groove through the air duct, and the connecting rod on the bottom side of the piston can push the fixing block to move downward in the fixing groove, thereby clamping the patient's arm in the fixing groove, and the air pressure in the piston groove can be detected by the pressure sensor, thereby detecting and controlling the squeezing force of the fixing block on the patient's arm, further solving the problem that the existing arm fixing nursing device is not conducive to accurately controlling the clamping force of the fixing block on the patient's arm, affecting the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural schematic diagram of an arm fixing device of the utility model;

[0015] Figure 2 This is a schematic diagram of the interior of a fixing base of an arm fixing device of the utility model;

[0016] Figure 3 This is a front view of an arm fixing device of the utility model.

[0017] In the figure: 1. fixing table; 11. fixing seat; 12. fixing groove; 13. fixing block; 14. piston groove; 15. piston; 16. connecting rod; 17. spring; 18. air guide tube; 2. pressure sensor; 21. solenoid valve; 22. silicone pad; 23. slide groove; 24. slider; 25. threaded rod. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: an arm fixing device, including a fixing platform 1, two groups of fixing seats 11 are arranged above the fixing platform 1, a fixing groove 12 is opened at the lower end of the fixing seat 11, and also includes a fixing block 13, a piston groove 14, an air guide pipe 18 and a pressure sensor 2, the fixing block 13 is slidably connected to the inner side of the fixing groove 12, the piston groove 14 is opened inside the upper end of the fixing seat 11, a piston 15 is slidably connected inside the piston groove 14, connecting rods 16 are vertically fixedly installed on both sides of the lower surface of the piston 15, the bottom ends of the two groups of connecting rods 16 vertically penetrate the top inner wall of the fixing groove 12 and are fixedly connected to the upper surface of the fixing block 13, the air guide pipe 18 is fixedly installed on the top of the fixing seat 11, and the bottom end of the air guide pipe 18 is communicated with the inside of the top of the piston groove 14, an electromagnetic valve 21 is arranged inside the air guide pipe 18, and the pressure sensor 2 is fixedly connected to one side of the top inner wall of the piston groove 14.

[0019] In this technical solution, the patient's arm can be positioned through the fixing groove 12 on the bottom side of the fixing seat 11, and the inflation tube of the corresponding inflation pump is connected to the air guide tube 18. The solenoid valve 21 is opened to inflate the piston groove 14, thereby pushing the piston 15 to move downward in the piston groove 14, and the fixing block 13 can be pushed downward in the fixing groove 12 through the connecting rod 16, thereby clamping the patient's arm in the fixing groove 12. The air pressure in the piston groove 14 can be detected by the pressure sensor 2, and the data is transmitted to the corresponding controller, thereby detecting the squeezing force of the fixed block 13 on the patient's arm. When the squeezing force of the fixed block 13 on the arm reaches the set value, the corresponding controller can automatically control the solenoid valve 21 to close, further solving the problem that the existing arm fixing nursing device is not conducive to accurately controlling the clamping force of the fixed block 13 on the patient's arm, thereby affecting the use effect.

[0020] In this embodiment, two groups of springs 17 are provided on the inner side of the piston groove 14, and the two groups of springs 17 are respectively sleeved on the outer side of the connecting rod 16, and the top and bottom ends of the springs 17 are respectively fixedly connected to the bottom side of the piston 15 and the bottom inner wall of the piston groove 14, and the connecting rod 16 is matched with the size of the piston groove 14.

[0021] In this technical solution, when it is necessary to release the fixation of the patient's arm by the fixing block 13, the solenoid valve 21 is opened, and the air pressure in the piston groove 14 can be restored through the air duct 18. The elastic force of the spring 17 on the outside of the connecting rod 16 can push the piston 15 upward, and the fixing block 13 can be pulled upward and reset through the connecting rod 16, making it convenient for the staff to pull the arm out of the fixing groove 12.

[0022] In this embodiment, slide grooves 23 are horizontally opened on both sides of the upper surface of the fixed platform 1, and a slider 24 is fixedly installed on the bottom side of the fixed seat 11. The two groups of fixed seats 11 are slidably connected to the two groups of slide grooves 23 on the upper surface of the fixed platform 1 through the slider 24. The inside of the slide groove 23 is rotatably connected with a threaded rod 25 through a bearing. The threaded rod 25 horizontally penetrates the slider 24 and is threadedly connected to the slider 24. The inner wall of the bottom end of the fixed groove 12 and the bottom side of the fixed block 13 are both bonded with a silicone pad 22, and the sizes of the fixed groove 12 and the fixed block 13 are matched, and the threads of the threaded rod 25 on the front and rear sides are opposite.

[0023] In this technical solution, the slider 24 is slidably connected to the slide groove 23, and the threaded rod 25 is threadedly connected to the slider 24. The threads on the front and rear sides of the threaded rod 25 have opposite rotation directions. By rotating the threaded rod 25, the two groups of fixed seats 11 can be driven to move relative to or in the opposite direction on the upper surface of the fixed platform 1 through the slider 24, which makes it convenient for the staff to adjust the use position of the fixed seat 11 according to the use requirements.

[0024] When an arm fixing device is used, the threaded rod 25 is rotated, and the two groups of fixing seats 11 can be driven to move relative or reversely on the upper surface of the fixing platform 1 through the slider 24, so that the staff can adjust the use position of the fixing seat 11 according to the use requirements. The patient's arm can be positioned through the fixing groove 12 on the bottom side of the fixing seat 11, and the inflation pipe of the corresponding inflation pump is connected with the air guide pipe 18. The solenoid valve 21 is opened to inflate the piston groove 14, thereby pushing the piston 15 to move downward in the piston groove 14, and the fixing block 13 can be pushed to move downward in the fixing groove 12 through the connecting rod 16, so as to clamp the patient's arm in the fixing groove 12, and the air pressure in the piston groove 14 can be detected by the pressure sensor 2, and The data is transmitted to the corresponding controller to detect the squeezing force of the fixed block 13 on the patient's arm. When the squeezing force of the fixed block 13 on the arm reaches the set value, the corresponding controller can automatically control the solenoid valve 21 to close, further solving the problem that the existing arm fixing nursing device is not conducive to accurately controlling the clamping force of the fixed block 13 on the patient's arm, affecting the use effect. When it is necessary to release the fixation of the patient's arm by the fixed block 13, the solenoid valve 21 is opened, and the air pressure in the piston groove 14 can be restored through the air duct 18. The elastic force of the spring 17 on the outside of the connecting rod 16 can push the piston 15 to move upward, and the fixing block 13 can be pulled upward and reset through the connecting rod 16, which is convenient for the staff to pull the arm out of the fixing groove 12.

Claims

1. An arm fixing device, comprising a fixing platform (1), two sets of fixing seats (11) are arranged above the fixing platform (1), and fixing grooves (12) are provided at the lower ends of the fixing seats (11), characterized in that: The invention also comprises a fixed block (13), a piston groove (14), an air guide tube (18) and a pressure sensor (2); the fixed block (13) is slidably connected to the inner side of the fixed groove (12); the piston groove (14) is arranged inside the upper end of the fixed seat (11); a piston (15) is slidably connected inside the piston groove (14); connecting rods (16) are vertically fixedly installed on both sides of the lower surface of the piston (15); the bottom ends of two groups of connecting rods (16) vertically penetrate the top inner wall of the fixed groove (12) and are fixedly connected to the upper surface of the fixed block (13); two groups of springs (17) are arranged inside the piston groove (14); the air guide tube (18) is fixedly installed on the top of the fixed seat (11); the bottom end of the air guide tube (18) is communicated with the inside of the top of the piston groove (14); an electromagnetic valve (21) is arranged inside the air guide tube (18); and the pressure sensor (2) is fixedly connected to one side of the top inner wall of the piston groove (14).

2. An arm fixing device according to claim 1, characterized in that: The two groups of springs (17) are respectively sleeved on the outside of the connecting rod (16), and the top and bottom ends of the springs (17) are respectively fixedly connected to the bottom side of the piston (15) and the bottom inner wall of the piston groove (14), and the connecting rod (16) and the piston groove (14) have sizes that match.

3. The arm fixing device according to claim 1, characterized in that: Slide grooves (23) are horizontally provided on both sides of the upper surface of the fixed platform (1), a slider (24) is fixedly installed on the bottom side of the fixed seat (11), and the two groups of fixed seats (11) are slidably connected to the two groups of slide grooves (23) on the upper surface of the fixed platform (1) via the slider (24).

4. The arm fixing device according to claim 3, characterized in that: A threaded rod (25) is rotatably connected to the interior of the slide groove (23) via a bearing. The threaded rod (25) horizontally penetrates the slider (24) and is threadedly connected to the slider (24). The threads on the front and rear sides of the threaded rod (25) have opposite rotation directions.

5. The arm fixing device according to claim 1, characterized in that: The inner wall of the bottom end of the fixing groove (12) and the bottom side of the fixing block (13) are both bonded with a silicone pad (22), and the sizes of the fixing groove (12) and the fixing block (13) match each other.

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