Radial artery compressor for cardiology department nursing

By designing an automated intermittent compression and relaxation mechanism, the problem of cumbersome manual operation required by existing radial artery compression devices has been solved. This achieves automated compression hemostasis and local relaxation, improving hemostasis and reducing the occurrence of complications.

CN122004997APending Publication Date: 2026-05-12GENERAL HOSPITAL OF THE NORTHERN WAR ZONE OF THE CHINESE PEOPLES LIBERATION ARMY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GENERAL HOSPITAL OF THE NORTHERN WAR ZONE OF THE CHINESE PEOPLES LIBERATION ARMY
Filing Date
2026-03-26
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing radial artery compression devices rely on cumbersome manual operation, leading to unstable hemostasis, increasing the risk of secondary bleeding, and potentially causing limb circulatory disorders and complications.

Method used

A radial artery compressor for cardiology nursing was designed, employing an intermittent compression actuator and an intermittent relaxation mechanism. It utilizes a motor-driven compression plate and a flexible kneading ball to automatically alternate working, combined with the automatic relaxation function of the expansion gas belt, to reduce manual intervention.

Benefits of technology

It achieves automated compression hemostasis and local relaxation, improves hemostasis effect, reduces the workload of medical staff, and avoids blood circulation disorders and complications caused by prolonged binding.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122004997A_ABST
    Figure CN122004997A_ABST
Patent Text Reader

Abstract

The invention provides a radial artery compressor for cardiology department nursing, and belongs to the technical field of cardiology department nursing. The radial artery compressor for cardiology department nursing comprises a containing box and a bandage, an intermittent compression executing mechanism is arranged in the containing box, the intermittent compression executing mechanism comprises a rotary table and a first connecting plate, and the rotary table is arranged in the containing box. By arranging the intermittent compression executing mechanism, after the rotary table starts to rotate, a guide roller is guided by a guide rail, meanwhile, a guide roller at the position of a flexible rubbing ball rotates synchronously until the positions of the guide roller and the guide roller are exchanged, the flexible rubbing ball performs temporary rubbing at the moment, and a compression plate and the flexible rubbing ball return to the original positions after rubbing is completed; the steps are repeated, so that the complexity that the compression plate is manually removed and the bleeding position is manually kneaded and relaxed for a short time is avoided, compared with the prior art, the bandage does not need to be frequently loosened, and the compression hemostasis effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of cardiology nursing technology, and more specifically, to a radial artery compressor for cardiology nursing. Background Technology

[0002] In the field of cardiovascular disease diagnosis and treatment, radial artery puncture is a commonly used interventional procedure, widely used in coronary angiography, percutaneous coronary intervention, and other surgeries. Effective hemostasis at the radial artery puncture site after the procedure is a key factor in ensuring the surgical outcome and reducing complications. If hemostasis is incomplete or the compression method is inappropriate, it can easily lead to adverse events such as bleeding, hematoma, and pseudoaneurysm. At the same time, prolonged local compression and limb restraint may also cause problems such as impaired limb blood circulation, pressure sores, numbness, and discomfort.

[0003] Currently, the compression and relaxation of radial artery compression devices commonly used in clinical practice rely on manual intervention. Medical staff need to manually remove the bandage periodically to massage and relax the area. This operation is cumbersome and time-consuming, increasing the workload of medical staff. At the same time, frequent loosening of the bandage can lead to unstable compression hemostasis, increasing the risk of secondary bleeding. Moreover, the bandage is mostly a one-piece structure, and prolonged continuous binding can block local limb blood circulation. Especially for patients who need to be immobilized in bed after surgery, it can easily cause complications such as limb swelling and abnormal sensation. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a radial artery compressor for cardiology nursing that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows: This invention provides a radial artery compressor for cardiology nursing, comprising a housing and a strap. The housing contains an intermittent compression actuator, which includes... A turntable is set inside the receiving box. Two sets of telescopic support rods are mirrored on the bottom of the turntable. Each set of telescopic support rods has a mounting plate at the other end. Each mounting plate has a guide roller. A guide rail is set inside the receiving box. The guide rollers are located inside the guide rail. There are two first connecting plates, which are respectively positioned below two mounting plates. A first spring is provided at the bottom of the first connecting plate. A second connecting plate and a third connecting plate are respectively fixed at the bottom of the two first springs. A pressure plate is fixed at the bottom of the second connecting plate. A connecting frame is fixed at the bottom of the third connecting plate. A first connecting rod is provided inside the connecting frame. A ball joint seat is rotatably provided at the bottom of the connecting frame. A flexible kneading ball is fixed at one end of the first connecting rod. A second connecting rod is provided at the other end of the first connecting rod. The other end of the second connecting rod is hinged to the ball joint seat.

[0006] In a preferred embodiment, a sleeve is fixedly provided at the bottom of the mounting plate, an inner rod is slidably provided inside the sleeve, the bottom of the inner rod is fixedly connected to the first connecting plate, and a first lead screw is rotatably provided at the bottom of the mounting plate, the first lead screw being threaded inside the inner rod.

[0007] In a preferred embodiment, a fixed base is fixedly provided on the inner wall of the receiving box, the turntable is rotatably disposed on the inner wall of the fixed base, a slot is provided on the surface of the turntable, two receiving slots are symmetrically provided on the inner wall of the fixed base, a second spring is provided inside the receiving slot, and a locking block is provided at the other end of the second spring.

[0008] In a preferred embodiment, a lever is rotatably mounted on the inner top wall of the fixed base, a lever block is fixedly mounted on the lever, a spiral torsion spring is provided between the lever and the turntable, a ratchet is rotatably mounted inside the fixed base, the ratchet is coaxially fixed on the top of the lever block, a gear is rotatably mounted on the top of the fixed base, a frustum is fixedly mounted on the bottom of the gear, and a pawl is rotatably mounted on the frustum.

[0009] In a preferred embodiment, a first linear slide rail is fixedly provided on the inner wall of the receiving box, a first slider is slidably provided on the surface of the first linear slide rail, a third spring is provided between the first slider and the inner wall of the receiving box, and a rack is fixedly provided at the bottom of the first slider, the rack meshing with a gear.

[0010] In a preferred embodiment, the interior of the receiving box is provided with an intermittent relaxation mechanism, which includes an air storage cylinder. Several air storage cylinders are arranged in a linear array, and each air storage cylinder has an air guide hole. A piston is slidably disposed inside the air storage cylinder.

[0011] In a preferred embodiment, a piston rod is fixed to the bottom of the piston bolt, a lifting plate is fixed to the bottom of the piston rod, a fourth spring is provided between the lifting plate and the air storage cylinder, and a lifting rod is fixed to the bottom of the lifting plate.

[0012] In a preferred embodiment, a second linear slide rail is fixedly provided on the inner wall of the receiving box, a second slider is slidably provided on the surface of the second linear slide rail, a third slider is slidably provided on the surface of the first linear slide rail, and the second slider and the third slider are fixedly connected.

[0013] In a preferred embodiment, a second lead screw is rotatably provided on the inner wall of the receiving box, the second lead screw being threaded inside the second slider, and a guide plate is fixed on the side of the lifting rod near the second slider.

[0014] In a preferred embodiment, a third linear slide rail is fixed to the inner wall of the receiving box, a limiting plate is slidably disposed on the surface of the third linear slide rail, a fifth spring is disposed between the limiting plate and the receiving box, and an unlocking groove and several locking grooves are provided on the top of the limiting plate.

[0015] The radial artery compressor provided by this invention has the following beneficial effects: 1. By setting an intermittent compression actuator, when the turntable starts to rotate, the guide roller is guided by the guide rail, and at the same time, the guide roller at the flexible kneading ball rotates synchronously until the two positions are interchanged. At this time, the flexible kneading ball performs a brief kneading. After that, the compression plate and the flexible kneading ball return to their original positions. This process is repeated, thus avoiding the tedious process of manually removing the compression plate and manually kneading the bleeding site briefly to relax it. Compared with existing technologies, it is not necessary to frequently loosen the bandage, thus improving the compression hemostasis effect.

[0016] 2. By setting up an intermittent relaxation mechanism, when the straps are tied to the patient's upper or lower limbs, the inflatable gas belts are tightened. At this time, the pistons inside the gas cylinder are moved downwards in sequence, so that the gas inside the corresponding inflatable gas belts is drawn into the inner cavity of the gas cylinder. The inflatable gas belts are then in a deflated state, so that the corresponding positions on the patient's body are loosened in sequence, avoiding the phenomenon of poor blood circulation caused by prolonged binding. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention; Figure 2 A partial cross-sectional view of the housing is provided for an embodiment of the present invention; Figure 3 A schematic diagram of the compression plate is provided for embodiments of the present invention; Figure 4 A partial sectional view of the sleeve and inner rod is provided for embodiments of the present invention; Figure 5 A schematic diagram of the structure of a flexible kneading ball is provided for embodiments of the present invention; Figure 6 A schematic diagram of the rack and gear structure is provided for embodiments of the present invention; Figure 7 A partial cross-sectional view of the fixing base is provided for embodiments of the present invention; Figure 8 A schematic diagram of the lever and lever block is provided for embodiments of the present invention; Figure 9 A schematic diagram of the structure of the limiting plate is provided for embodiments of the present invention; Figure 10 A partial cross-sectional view of the gas storage cylinder is provided for an embodiment of the present invention.

[0019] In the diagram: 1. Receiving box; 2. Strap; 301. Turntable; 302. Telescopic support rod; 303. Hanging plate; 304. Guide roller; 305. Guide rail; 306. First connecting plate; 307. First spring; 308. Second connecting plate; 309. Third connecting plate; 310. Pressure plate; 311. Connecting frame; 312. First connecting rod; 313. Ball joint seat; 314. Flexible kneading ball; 315. Second connecting rod; 316. Sleeve; 317. Inner rod; 318. First lead screw; 319. Fixed base; 320. Slot; 321. Receiving groove; 322. Second spring; 323. Locking block; 324. Lever; 325. Lever 326. Block; 327. Scroll torsion spring; 328. Ratchet; 329. Gear; 330. Frustum; 331. Pawl; 332. First linear slide rail; 333. First slider; 334. Third spring; 335. Rack; 401. Air reservoir; 402. Air vent; 403. Piston bolt; 404. Piston rod; 405. Lifting plate; 406. Fourth spring; 407. Lifting rod; 408. Second linear slide rail; 409. Second slider; 410. Third slider; 411. Second lead screw; 412. Guide ramp; 413. Third linear slide rail; 414. Limiting plate; 415. Fifth spring; 416. Unlocking slot; 417. Locking slot. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0021] Reference Figures 1-10This invention provides a technical solution: a radial artery compressor for cardiology nursing, comprising a housing 1 and a strap 2. The housing 1 contains an intermittent compression actuator, which includes a turntable 301 and a first connecting plate 306. The turntable 301 is located inside the housing 1. Two sets of telescopic support rods 302 are mirror-image arranged at the bottom of the turntable 301, with at least two rods in each set. Each set of telescopic support rods 302 has a mounting plate 303 at its other end, and guide rollers 304 are mounted on each mounting plate 303. A guide rail 305 is provided inside the housing 1, with the guide rollers 304 located inside the guide rail 305. Two first connecting plates 306 are provided. 6 is correspondingly positioned below the two mounting plates 303. A first spring 307 is provided at the bottom of the first connecting plate 306. A second connecting plate 308 and a third connecting plate 309 are respectively fixed to the bottom of the two first springs 307. A pressure plate 310 is fixed to the bottom of the second connecting plate 308. A connecting frame 311 is fixed to the bottom of the third connecting plate 309 via a connecting rod. A first connecting rod 312 is provided inside the connecting frame 311 via a ball joint. A ball joint seat 313 is rotatably provided at the bottom of the connecting frame 311. A flexible kneading ball 314 is fixed to one end of the first connecting rod 312. A second connecting rod 315 is provided at the other end of the first connecting rod 312 via a ball joint. The other end of the second connecting rod 315 is hinged to the ball joint seat 313. The top of the third connecting plate 309 is connected to the mounting plate 309 via bolts and... A servo motor is fixedly mounted on the mounting plate. The output end of the servo motor is fixedly connected to the mounting plate via a coupling and a ball joint. A sleeve 316 is fixedly mounted on the bottom of the mounting plate 303. An inner rod 317 is slidably mounted inside the sleeve 316. The bottom of the inner rod 317 is fixedly connected to the first connecting plate 306. A first lead screw 318 is rotatably mounted on the bottom of the mounting plate 303. The first lead screw 318 is threaded inside the inner rod 317. A first motor is fixedly mounted on the top of the mounting plate 303 via bolts and a mounting plate. The output end of the first motor is fixedly connected to the first lead screw 318 via a coupling. By setting an intermittent compression actuator, the user binds the strap 2 to the patient's upper or lower limb and positions the compression plate 310 at the radial artery bleeding location, then starts the first motor to drive... The rotation of the first lead screw 318, through the threaded connection between the first lead screw 318 and the inner rod 317, and under the limiting action of the sleeve 316, causes the inner rod 317 to drive the first connecting plate 306 downward until the compression plate 310 reaches the preset position to compress the bleeding site of the patient's radial artery. After compression for a period of time (the specific time depends on the patient's bleeding situation), the turntable 301 is driven to rotate. Initially, the guide roller 304 located on the side of the compression plate 310 is at the lowest end of the guide rail 305. When the turntable 301 starts to rotate, the guide roller 304 is guided by the guide rail 305, causing the compression plate 310 to move upward. At the same time, the guide roller 304 at the flexible kneading ball 314 rotates synchronously until the two positions are interchanged.At this point, another first motor is activated, causing the flexible kneading ball 314 to reach a preset position. The servo motor is then activated, driving the ball joint seat 313 to rotate. With the cooperation of the first link 312 and the second link 315, the flexible kneading ball 314 performs a brief kneading motion. After this, the rotating plate is rotated again, causing the pressure plate 310 and the flexible kneading ball 314 to return to their original positions. This process is repeated, thus avoiding the tedious manual removal of the pressure plate 310 and the manual brief kneading to relax the bleeding site. Compared with existing technologies, it eliminates the need for frequent loosening of the bandage 2, improving the hemostatic effect. Reference Figures 1-10A fixed base 319 is fixedly mounted on the inner wall of the receiving box 1. A turntable 301 is rotatably mounted on the inner wall of the fixed base 319 via a one-way bearing. A guide rail 305 is fixed on the fixed base 319 via a connecting rod. A slot 320 is provided on the surface of the turntable 301. Two receiving slots 321 are symmetrically provided on the inner wall of the fixed base 319. A second spring 322 is provided inside the receiving slot 321. A locking block 323 is provided at the other end of the second spring 322. In the working state, one of the locking blocks 323 is engaged inside the slot 320. The fixed base 319 is rotatably mounted at the central axis of the inner top wall. A lever 324 is provided, and a lever block 325 is fixedly mounted on the lever 324. A spiral torsion spring 326 is provided between the lever 324 and the turntable 301. A ratchet 327 is rotatably mounted at the central axis inside the fixed base 319. The ratchet 327 is coaxially fixed to the top of the lever block 325. A gear 328 is rotatably mounted at the central axis at the top of the fixed base 319. A frustum 329 is fixed to the bottom of the gear 328 via a connecting rod. A pawl 330 is rotatably mounted on the frustum 329. A torsion spring is provided between the pawl 330 and the frustum 329. By providing a slot 320 and a locking block 323, the gear 328 rotates... During the half-turn process, gear 328 drives the frustum 329 and pawl 330 to rotate. At this time, the pawl 330 and the ratchet teeth on the ratchet 327 abut against each other, causing the ratchet 327 to rotate as well. The ratchet 327 drives the lever 324 and the lever block 325 to rotate as well. At the same time, the spiral torsion spring 326 between the lever 324 and the rotating rod begins to accumulate elastic potential energy until the lever block 325 squeezes the locking block 323 located inside the locking groove 320, causing the locking block 323 to retract into the receiving groove 321. At this time, the elastic potential energy of the spiral torsion spring 326 is released, and the turntable 301 rotates rapidly 180 degrees. Ten degrees later, another locking block 323, with the help of the rebound force of the second spring 322, engages inside the locking slot 320, thereby quickly completing the switching between the pressure plate 310 and the flexible kneading ball 314. The gear 328 continues to rotate half a turn. Similarly, the toggle block 325 moves the locking block 323, so that the flexible kneading ball 314, after a brief kneading, once again exchanges positions with the pressure plate 310. When the gear 328 rotates in the opposite direction, since the turntable 301 can only rotate in one direction, the pawl 330 rotates itself after being squeezed by the ratchet teeth on the ratchet wheel 327, while the turntable 301 remains stationary. Reference Figures 1-10The inner wall of the receiving box 1 is fixed with a first linear slide rail 331 by bolts. A first slider 332 is slidably disposed on the surface of the first linear slide rail 331. A third spring 333 is disposed between the first slider 332 and the inner wall of the receiving box 1. A rack 334 is fixed at the bottom of the first slider 332. The rack 334 meshes with a gear 328. By setting the first slider 332, when the first slider 332 is squeezed by an external force, the first slider 332 drives the rack 334 to move. Through the meshing connection between the rack 334 and the gear 328, the gear 328 rotates. When the first slider 332 is freed from external pressure, the rebound force of the third spring 333 causes the first slider 332 to return to its original position. Reference Figures 1-10 The housing 1 is equipped with an intermittent relaxation mechanism, which includes several air cylinders 401 arranged in a linear array. Each air cylinder 401 has an air guide hole 402. A piston bolt 403 is slidably disposed inside the air cylinder 401. An annular strip is integrally formed inside the air cylinder 401 to limit the stroke end of the piston bolt 403. Several expansion air bands are disposed inside the strap 2, the number of which corresponds to the number of air cylinders 401. One end of each expansion air band is open and connected to the inner cavity of the air cylinder 401 through the air guide hole 402. Because the strap 2 is flexible... Made of soft material, after the user binds the strap 2 to the patient's upper or lower limbs, the main binding and restraint of the patient's upper or lower limbs is the inflatable air belt. By setting an intermittent relaxation mechanism, when the strap 2 is bound to the patient's upper or lower limbs, the inflatable air belt is restrained. At this time, the piston 403 inside the air cylinder 401 is moved downward in sequence, so that the gas inside the corresponding inflatable air belt is drawn into the inner cavity of the air cylinder 401. The inflatable air belt is in a deflated state at this time, so that the corresponding position of the patient being bound is relaxed in sequence, avoiding the phenomenon of poor blood circulation caused by prolonged binding and restraint. Reference Figures 1-10A piston rod 404 is fixed to the bottom of the piston bolt 403, and a lifting plate 405 is fixed to the bottom of the piston rod 404. A fourth spring 406 is provided between the lifting plate 405 and the air storage cylinder 401. A lifting rod 407 is fixed to the bottom of the lifting plate 405, and the lifting rod 407 has a vertical end and a horizontal end. A second linear slide rail 408 is fixed to the inner wall of the receiving box 1 by bolts. A second slider 409 is slidably disposed on the surface of the second linear slide rail 408. A third slider 410 is slidably disposed on the surface of the first linear slide rail 331. The second slider 409 and the third slider 410 are fixedly connected by a connecting rod. A second lead screw 411 is rotatably disposed on the inner wall of the receiving box 1. The second lead screw 411 is threaded inside the second slider 409. A guide ramp 412 is fixedly mounted on the side of the lowering rod 407 near the second slider 409. The guide ramp 412 is located on the movement trajectory of the second slider 409. A second motor is fixedly mounted inside the receiving box 1 by bolts and a mounting plate. The output end of the second motor is fixedly connected to the second lead screw 411 via a coupling. A third linear slide rail 413 is fixedly mounted on the inner wall of the receiving box 1 by bolts. A limiting plate 414 is slidably mounted on the surface of the third linear slide rail 413. A fifth spring 415 is provided between the limiting plate 414 and the receiving box 1. An unlocking groove 416 and several locking grooves 417 are provided on the top of the limiting plate 414. An unlocking block is also provided inside the receiving box 1. A pull rod is provided on the unlocking block. When it is necessary to bind and restrain the patient with all the inflatable belts... Pulling the lever causes the unlocking block to press against the inner wall of the unlocking groove 416, thereby unlocking all the lifting rods 407. By setting the second lead screw 411, the user starts the second motor, causing the second lead screw 411 to rotate slowly (the specific rotation speed is determined by the duration of a single compression by the compression plate 310 required by the patient). Through the threaded connection between the second lead screw 411 and the second slider 409, the second slider 409 drives the third slider 410 to move simultaneously. After the second slider 409 presses against the first guide plate 412, the guide plate 412 drives the lifting rods 407 and the lifting plate 405 downwards. The movement of the lifting plate 405 causes the piston rod 404 and the piston bolt 403 to move downwards, carrying the internal air with the expansion gas. The gas is drawn into the inner cavity of the air reservoir 401. After the lifting rod 407 moves downward to the preset position, its horizontal end engages with the locking groove 417, preventing the piston bolt 403 from returning to its original position under the restoring force of the fourth spring 406. This keeps the corresponding inflated airbag in a deflated state until the second slider 409 presses against the second guide plate 412. During the process of the second lifting rod 407 engaging with the corresponding locking groove 417, the limiting plate 414 moves to the preset position. Under the restoring force of the fourth spring 406, the first lifting rod 407 returns to its original position. This process repeats until the last lifting rod 407 engages with the corresponding locking groove 417. Then, the second slider 409 continues to move.This causes the third slider 410 to press against the first slider 332, thereby causing the pressure plate 310 and the flexible kneading ball 314 to interchange positions. When the second slider 409 moves in the opposite direction, the first slider 332 loses its pressure and returns to its original position.

[0022] Specifically, the working process or principle of this radial artery compression device for cardiology nursing is as follows: During use, the user straps 2 to the patient's upper or lower limb and positions the compression plate 310 at the radial artery bleeding location. The first motor is activated, causing the first lead screw 318 to rotate. Through the threaded connection between the first lead screw 318 and the inner rod 317, and under the limiting action of the sleeve 316, the inner rod 317 causes the first connecting plate 306 to move downwards until the compression plate 310 reaches the preset position to compress the patient's radial artery bleeding location. The user then activates the second motor, causing the second lead screw 411 to rotate slowly. Through the threaded connection between the second lead screw 411 and the second slider 409, the second slider 409 simultaneously drives the third slider 410. As the second slider 409 presses against the first guide ramp 412, the guide ramp 412 causes the lifting rod 407 and lifting plate 405 to move downwards. The movement of the lifting plate 405 causes the piston rod 404 and piston bolt 403 to move downwards, drawing the gas inside the expansion gas bag into the inner cavity of the gas storage cylinder 401. After the lifting rod 407 moves downwards to the preset position, the horizontal end of the lifting rod 407 is engaged in the locking groove 417, preventing the piston bolt 403 from returning to its original position by the rebound force of the fourth spring 406, keeping the corresponding expansion gas bag in a deflated state. This continues until the second slider 409 presses against the second guide ramp 412. During the process of the second lifting rod 407 being engaged in the corresponding locking groove 417, the limiting plate... After 414 moves to the preset position, under the rebound force of the fourth spring 406, the first lifting rod 407 returns to its original position. This process repeats until the last lifting rod 407 is engaged in the corresponding locking groove 417. Then, the second slider 409 continues to move, causing the third slider 410 to press against the first slider 332. This causes the first slider 332 to move the rack 334. Through the meshing connection between the rack 334 and the gear 328, the gear 328 rotates. During the half-turn rotation of the gear 328, the gear 328 drives the frustum 329 and the pawl 330 to rotate. At this time, the pawl 330 abuts against the ratchet teeth on the ratchet wheel 327, causing the ratchet wheel 327 to rotate as well. The ratchet wheel 327 drives the lever 324 and the lever... As block 325 rotates, the spiral torsion spring 326 between lever 324 and rotating rod begins to accumulate elastic potential energy. This continues until block 325 presses against block 323 located inside slot 320, causing block 323 to retract into receiving slot 321. At this point, the elastic potential energy of spiral torsion spring 326 is released. After turntable 301 rotates rapidly 180 degrees, another block 323, aided by the rebound force of second spring 322, engages inside slot 320, thus quickly completing the switch between pressure plate 310 and flexible kneading ball 314. During this process, guide roller 304 is guided by guide rail 305, causing pressure plate 310 to move upwards, while guide roller 304 at flexible kneading ball 314 rotates synchronously.Until their positions are interchanged, another first motor is activated, causing the flexible kneading ball 314 to reach a preset position. The servo motor is then activated, driving the ball joint seat 313 to rotate. With the cooperation of the first link 312 and the second link 315, the flexible kneading ball 314 performs a brief kneading motion. The gear 328 continues to rotate half a turn. Similarly, the toggle block 325 moves the locking block 323, causing the flexible kneading ball 314 to interchange positions with the pressure plate 310 again after a brief kneading motion.

Claims

1. A radial artery compression device for cardiology care, comprising a housing (1) and a strap (2), characterized in that: The interior of the receiving box (1) is provided with an intermittent pressure actuator, which includes, A turntable (301) is set inside the receiving box (1). Two sets of telescopic support rods (302) are mirror-image arranged at the bottom of the turntable (301). The other end of each set of telescopic support rods (302) is provided with a mounting plate (303). Guide rollers (304) are provided on each of the two mounting plates (303). A guide rail (305) is provided inside the receiving box (1). The guide rollers (304) are located inside the guide rail (305). Two first connecting plates (306) are provided, and the two first connecting plates (306) are respectively provided below the two mounting plates (303). A first spring (307) is provided at the bottom of the first connecting plate (306). A second connecting plate (308) and a third connecting plate (309) are respectively fixed at the bottom of the two first springs (307). A pressure plate (310) is fixed at the bottom of the second connecting plate (308). A connecting frame (311) is fixed at the bottom of the third connecting plate (309). A first connecting rod (312) is provided inside the connecting frame (311). A ball joint seat (313) is rotatably provided at the bottom of the connecting frame (311). A flexible kneading ball (314) is fixed at one end of the first connecting rod (312). A second connecting rod (315) is provided at the other end of the first connecting rod (312). The other end of the second connecting rod (315) is hinged to the ball joint seat (313).

2. The radial artery compressor for cardiology nursing according to claim 1, characterized in that, A sleeve (316) is fixedly provided at the bottom of the mounting plate (303), and an inner rod (317) is slidably provided inside the sleeve (316). The bottom of the inner rod (317) is fixedly connected to the first connecting plate (306). A first lead screw (318) is rotatably provided at the bottom of the mounting plate (303), and the first lead screw (318) is threaded inside the inner rod (317).

3. The radial artery compressor for cardiology nursing according to claim 1, characterized in that, The inner wall of the receiving box (1) is fixedly provided with a fixed base (319). The turntable (301) is rotatably disposed on the inner wall of the fixed base (319). The surface of the turntable (301) is provided with a slot (320). The inner wall of the fixed base (319) is symmetrically provided with two receiving slots (321). The inside of the receiving slot (321) is provided with a second spring (322). The other end of the second spring (322) is provided with a locking block (323).

4. A radial artery compression device for cardiology nursing according to claim 3, characterized in that, A lever (324) is rotatably mounted on the inner top wall of the fixed base (319). A lever block (325) is fixed on the lever (324). A spiral torsion spring (326) is provided between the lever (324) and the turntable (301). A ratchet (327) is rotatably mounted inside the fixed base (319). The ratchet (327) is coaxially fixed on the top of the lever block (325). A gear (328) is rotatably mounted on the top of the fixed base (319). A frustum (329) is fixed on the bottom of the gear (328). A pawl (330) is rotatably mounted on the frustum (329).

5. A radial artery compression device for cardiology nursing according to claim 4, characterized in that, The inner wall of the container (1) is fixedly provided with a first linear slide rail (331), and a first slider (332) is slidably provided on the surface of the first linear slide rail (331). A third spring (333) is provided between the first slider (332) and the inner wall of the container (1). A rack (334) is fixedly provided at the bottom of the first slider (332), and the rack (334) meshes with a gear (328).

6. A radial artery compression device for cardiology nursing according to claim 5, characterized in that, The container (1) is provided with an intermittent relaxation mechanism, which includes an air storage cylinder (401). Several air storage cylinders (401) are arranged in a linear array. An air guide hole (402) is opened on the air storage cylinder (401). A piston bolt (403) is slidably arranged inside the air storage cylinder (401).

7. A radial artery compression device for cardiology nursing according to claim 6, characterized in that, A piston rod (404) is fixedly provided at the bottom of the piston bolt (403), a lifting plate (405) is fixedly provided at the bottom of the piston rod (404), a fourth spring (406) is provided between the lifting plate (405) and the air storage cylinder (401), and a lifting rod (407) is fixedly provided at the bottom of the lifting plate (405).

8. A radial artery compression device for cardiology nursing according to claim 7, characterized in that, The inner wall of the container (1) is fixedly provided with a second linear slide rail (408), and a second slider (409) is slidably provided on the surface of the second linear slide rail (408). A third slider (410) is slidably provided on the surface of the first linear slide rail (331). The second slider (409) and the third slider (410) are fixedly connected.

9. A radial artery compression device for cardiology nursing according to claim 8, characterized in that, The inner wall of the receiving box (1) is rotatably provided with a second lead screw (411), which is threaded inside the second slider (409). The lifting rod (407) is fixed with a guide plate (412) on the side near the second slider (409).

10. A radial artery compression device for cardiology nursing according to claim 1, characterized in that, The inner wall of the container (1) is fixed with a third linear slide rail (413), and a limiting plate (414) is slidably provided on the surface of the third linear slide rail (413). A fifth spring (415) is provided between the limiting plate (414) and the container (1). The top of the limiting plate (414) is provided with an unlocking groove (416) and several locking grooves (417).