A chest compression device with controllable compression motion and compression force

Abstract

The application discloses a chest compression device with controllable pressing motion and pressing force, which comprises a shell, an executing mechanism and a driving mechanism. The driving mechanism comprises a rack, a driving motor and a roller. The driving motor is arranged on the rack, and the output shaft of the driving motor is connected with the side wall of the roller. The rack is embedded in the bottom of the shell, and the battery is embedded in the two sides of the rack. The executing mechanism comprises a pressing block, a connecting piece and a guide rail. The pressing block is embedded in the plane of the rack. The connecting piece is fixedly arranged on the upper end surface of the pressing block. The guide rail is vertically arranged on one side of the connecting piece. The slider which is symmetrically arranged with the center of the driving motor is slidably arranged on the guide rail. The bandages which are staggered arranged are connected between the other side of the connecting piece and the roller. The connecting plate which is detachably connected with the slider is arranged on the rack. The displacement sensor is arranged in the slider. The application aims to provide a chest compression device which can replace the manual cardiopulmonary resuscitation operation, is safe and reliable, and has controllable pressing force.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a chest external compression device with controllable pressing motion and pressing force. BACKGROUND

[0002] Cardiopulmonary resuscitation is a common technique in daily and clinical first aid, mainly used for chest external compression of patients with cardiac arrest. In chest external compression, there are certain requirements for pressing force, pressing frequency and pressing depth in order to achieve better first aid effect. Due to the current standardization of first aid knowledge of the public and the instability of manual operation, a safe, reliable and stable and effective cardiopulmonary resuscitation device is of great significance. Therefore, the cardiopulmonary resuscitation device should have precise control ability of pressing force, pressing frequency and pressing depth, so as to ensure the safety and stability of the device. Therefore, there is an urgent need for a chest external compression device that can replace manual cardiopulmonary resuscitation operation, is safe and reliable, and has controllable pressing force. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art, and provides a chest external compression device that can replace manual cardiopulmonary resuscitation operation, is safe and reliable, and has controllable pressing force.

[0004] To achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0005] A chest external compression device with controllable pressing motion and pressing force, comprising a housing, an execution mechanism and a driving mechanism, the driving mechanism comprising a rack, a driving motor and a roller, the driving motor being arranged on the rack and the output shaft of the driving motor being connected with the side wall of the roller, the rack being embedded in the bottom of the housing, and a power supply connected with the driving motor being arranged on the rack, the execution mechanism comprising a pressing block, a connecting piece and a guide rail, wherein the connecting piece is fixedly arranged on the upper end face of the pressing block, the guide rail is vertically arranged on one side of the connecting piece, a sliding block is slidably arranged on the guide rail, the other side of the sliding block is connected with the roller through a connecting piece, and the connecting piece is arranged in a staggered manner, one end of one of the connecting pieces is fixed to the upper circumferential surface of the roller, the other end is fixed to the lower part of the connecting piece, one end of the other connecting piece is fixed to the lower circumferential surface of the roller, and the other end is fixed to the upper part of the connecting piece, a connecting plate is detachably connected with the sliding block on the rack, and a displacement sensor is arranged in the sliding block.

[0006] Further, the side wall of the roller comprises an inner ring and an outer ring, the output shaft of the driving motor is fixedly connected with the center of the inner ring, and elastic spokes are arranged between the inner ring and the outer ring.

[0007] Further, the connecting piece is a non-stretchable flexible band or a nylon band.

[0008] Further, the power supply is two batteries, and the two batteries are respectively located at two sides of the driving motor and embedded on the frame.

[0009] Further, the pressing block is embedded on the plane of the frame.

[0010] Compared with the prior art, the present application has the following beneficial effects:

[0011] The present application has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is an external structure diagram of the present application;

[0013] Figure 2 It is an internal structure diagram of the present application;

[0014] Figure 3 It is an explosion diagram of the present application;

[0015] Figure 4 It is a structure diagram of an actuator in the present application;

[0016] Figure 5 It is a structure diagram of a driving mechanism in the present application;

[0017] Figure 6 It is a side view of a roller in the present application.

[0018] Reference signs:

[0019] 1-actuator, 2-driving mechanism, 3-binder, 4-power supply, 5-outer shell, 11-sliding block, 12-guide rail, 13-connector, 14-pressing block, 21-frame, 22-driving motor, 23-roller, 24-connection plate, 51-groove, 231-inner ring, 232-outer ring, 233-elastic spoke. DETAILED DESCRIPTION

[0020] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0021] As Figures 1 to 6As shown, a controllable chest compression device for pressing movement and pressing force includes a shell 5, an actuator 1 and a driving mechanism 2, the driving mechanism 2 includes a rack 21, a driving motor 22 and a roller 23, the driving motor 22 is arranged on the rack 21 and the output shaft of the driving motor 22 is connected with the side wall of the roller 23, the rack 21 is embedded in the bottom of the shell 5, and the power supply 4 connected with the driving motor 22 is arranged on the rack 21, the actuator 1 includes a pressing block 14, a connecting piece 13 and a guide rail 12, wherein the connecting piece 13 is fixedly arranged on the upper end surface of the pressing block 14, the guide rail 12 is vertically arranged on one side of the connecting piece 13, the sliding block 11 symmetrically arranged with the center of the driving motor 22 is slidably arranged on the guide rail 12, and the other side of the connecting piece 13 is connected with the staggered arrangement of the bandage 3 between the roller 23, one end of one of the bandages 3 is fixed with the upper circumferential surface of the roller 23, the other end is fixed with the lower part of the connecting piece 13, and one end of the other bandage 3 is fixed with the lower circumferential surface of the roller 23, the other end is fixed with the upper part of the connecting piece 13, the connecting plate 24 detachably connected with the sliding block 11 is arranged on the rack 21, and the displacement sensor is arranged in the sliding block 11.

[0022] Wherein, the side wall of the roller 23 includes an inner ring 231 and an outer ring 232, the output shaft of the driving motor 22 is fixedly connected with the center of the inner ring 231, and the elastic spoke 233 is uniformly arranged between the inner ring 231 and the outer ring 232. The elastic spoke 233 can produce a certain elastic deformation, the elastic spoke 233 is deformed under stress, and the deformation amount Δs is linearly related to the output torque of the driving motor 22.

[0023] Wherein, the bandage 3 is a non-stretchable flexible band or a nylon band, the flexible band and the nylon band are both inelastic and cannot be stretched, which can not only pull the connecting piece 13 to move when the roller 23 rotates, but also accurately control the movement amplitude of the driving motor 22.

[0024] The power supply 4 in the application is two storage batteries, which are respectively located on both sides of the driving motor 22 and embedded in the rack 21 to supply power for the driving motor 22. The chest compression mode of the application is that the driving motor 22 drives the roller 23 to reverse, drives another bandage 3 to pull the connecting piece 13 and the guide rail 12 to move downward along the sliding block 11, drives the pressing block 14 to move vertically downward out of the rack 21, and simulates chest compression. The driving motor 22 drives the roller 23 to rotate in the positive direction, drives one bandage 3 to pull the connecting piece 13 and the guide rail 12 to move upward along the sliding block 11, drives the pressing block 14 to move vertically upward, and makes the pressing block 14 reset and embed in the plane of the rack 21. The model of the driving motor 2 is AK10-9 V2.0 KV60, the encoder and the controller built in the driving motor 2 can cooperate with the displacement sensor in the sliding block 11 to form accurate control of the pressing amplitude of the pressing block 14.

[0025] Since the two straps 3 are staggered and cross each other, when one strap 3 pulls the connecting piece 13 to move, the other strap 3 can correspondingly compensate the length, and there is no interference between them, and the elastic deformation of the strap 3 does not occur, so that the pressing amplitude of the pressing block 14 is accurately controllable. The pressing block 14 is embedded in the plane of the rack 21, and when the chest compression action is performed, the pressing block 14 is stretched downward from the plane of the rack 21, and after the action is completed, the pressing block 14 is retracted into the rack 21 and is in the same plane with the rack 21, which not only facilitates carrying, but also can directly place the equipment on the patient's chest, which is convenient to use.

[0026] The accurate control of the pressing block can be realized by the following steps:

[0027] (1) The elastic spoke 233 structure deformation amount Δs of the drum 23 is calculated by the vertical displacement Δl of the guide rail 12, the connecting piece 13 and the pressing block 14 and the rotation angle Δα of the output shaft of the driving motor 22.

[0028] (2) The output torque of the driving motor 22 is calculated by the elastic spoke 233 structure deformation amount Δs of the drum 23.

[0029] (3) The output force of the pressing block 14 is calculated by the output torque of the driving motor 22.

[0030] (4) The accurate control of the output force of the pressing block 14 is realized by controlling the rotation angle Δα of the output shaft of the driving motor 22.

[0031] The above only describes the preferred embodiments of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A chest compression device with controllable compression motion and compression force, characterized in that: The device includes a housing (5), an actuator (1), and a drive mechanism (2). The drive mechanism (2) includes a frame (21), a drive motor (22), and a roller (23). The drive motor (22) is mounted on the frame (21), and its output shaft is connected to the side wall of the roller (23). The frame (21) is embedded in the bottom of the housing (5), and a power supply (4) connected to the drive motor (22) is provided on the frame (21). The actuator (1) includes a pressing block (14), a connecting piece (13), and a guide rail (12). The connecting piece (13) is fixedly mounted on the upper surface of the pressing block (14), and the guide rail (12) is vertical. Arranged on one side of the connector (13), a slider (11) symmetrical to the center of the drive motor (22) is slidably mounted on the guide rail (12). On the other side of the connector (13), there are staggered straps (3) connecting the roller (23). One end of one strap (3) is fixed to the upper circumferential surface of the roller (23), and the other end is fixed to the lower part of the connector (13). One end of the other strap (3) is fixed to the lower circumferential surface of the roller (23), and the other end is fixed to the upper part of the connector (13). A connecting plate (24) detachably connected to the slider (11) is provided on the frame (21). A displacement sensor is provided inside the slider (11).

2. The chest compression device with controllable compression movement and compression force according to claim 1, characterized in that: The sidewall of the roller (23) includes an inner ring (231) and an outer ring (232). The output shaft of the drive motor (22) is fixedly connected to the center of the inner ring (231). Elastic spokes (233) are evenly distributed between the inner ring (231) and the outer ring (232).

3. The chest compression device with controllable compression movement and compression force according to claim 1, characterized in that: The strap (3) is a non-stretchable flexible strap or nylon strap.

4. The chest compression device with controllable compression movement and compression force according to claim 1, characterized in that: The power source (4) consists of two batteries, which are located on both sides of the drive motor (22) and embedded in the frame (21).

5. A chest compression device with controllable compression movement and compression force according to claim 1, characterized in that: The pressing block (14) is embedded in the plane of the frame (21).

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