Driving structure of cardio-pulmonary resuscitation instrument
By arranging the motor and the lead screw transmission structure horizontally side by side and connecting them with a transmission mechanism, the problems of high center of gravity and poor stability of existing cardiopulmonary resuscitation devices are solved, and the stability of the equipment and the operating accuracy are improved.
Patent Information
- Application Number
- CN202422365710.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In existing cardiopulmonary resuscitation devices, the motor and the compression head are located on the same vertical axis, resulting in a thick head and a high center of gravity, which affects the stability and smooth use of the device.
The motor and the lead screw transmission structure are arranged horizontally side by side and connected through a transmission mechanism to realize the motor driving the lead screw transmission structure, thereby lowering the center of gravity of the machine head and improving stability.
The upper and lower thicknesses and center of gravity of the handpiece are reduced, reducing the risk of tipping over and improving the stability and operational accuracy of the cardiopulmonary resuscitation device during placement and use.
Smart Images
Figure CN223404120U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical equipment, in particular to a driving structure of a cardiopulmonary resuscitation apparatus. Background Art
[0002] Cardiopulmonary resuscitation (CPR) is a procedure that gradually helps a patient recover their cardiopulmonary function by performing basic life support procedures such as artificial respiration and chest compressions. Traditionally, chest compressions are usually performed manually. Since CPR can last up to half an hour, it is labor-intensive for medical personnel. Therefore, a type of CPR device is now used to replace manual CPR on patients. In existing CPR devices, the motor and compression head are usually located on the same vertical axis and connected and driven by a screw mechanism. This structure results in a larger thickness of the CPR head. The higher position of the motor leads to a higher center of gravity of the head, which reduces the stability of the CPR device when placed and used, and is not conducive to the stability of the CPR device. Utility Model Content
[0003] The purpose of the present utility model is to provide a driving structure of a cardiopulmonary resuscitation device, which connects and transmits the motor and the screw transmission structure through a transmission mechanism, so that the motor and the screw transmission structure are arranged horizontally side by side in the head of the device, thereby lowering the center of gravity of the head and improving the stability of the cardiopulmonary resuscitation device when it is placed in use.
[0004] The technical solution adopted by the present invention to solve the above problems is:
[0005] A driving structure of a cardiopulmonary resuscitation device includes a handpiece, a motor, a screw transmission structure and a pressing head. The motor is fixed in the handpiece, the screw transmission structure is arranged on the right side of the motor, a transmission mechanism is arranged between the output shaft of the motor and the screw transmission structure, the motor drives the screw transmission structure to work through the transmission mechanism, and the pressing head is arranged on the screw transmission structure and driven to move up and down by the screw transmission structure.
[0006] In the above technical solution, preferably, the screw transmission structure includes a screw rod and a push rod, the screw rod is vertically rotatably arranged in the machine head, the push rod slides up and down and is non-rotatably arranged in the machine head, and the push rod is connected to the screw rod through a threaded structure, and the pressing head is fixed to the lower end of the push rod.
[0007] In the above technical solution, preferably, the transmission mechanism includes a synchronous wheel and a synchronous belt, a motor seat is provided in the machine head, the motor is fixed at the lower end of the motor seat, two synchronous wheels are provided and are coaxially fixed to the output shaft of the motor and the upper end of the screw rod, and the synchronous belt is sleeved on the two synchronous wheels.
[0008] In the above technical solution, preferably, a push rod base is sleeved on the screw rod, the push rod base is fixed on the lower side of the motor base, the screw rod is rotatably arranged in the push rod base, the push rod is inserted into the push rod base for sliding up and down, a vertically elongated limiting hole is provided on the front side surface of the push rod base, a sliding rod is fixed on the front side of the push rod, and the sliding rod is slid up and down in the limiting hole.
[0009] In the above technical solution, preferably, an optical coupler support plate is fixed on the front side of the push rod base, and two slot-type optical couplers are fixed on the inner side of the optical coupler support plate. When the sliding rod moves to the upper and lower ends of the limiting hole, it is respectively located in the two slot-type optical couplers.
[0010] In the above technical solution, preferably, a rotating bearing is provided between the screw rod and the push rod base, and a sliding bearing is provided between the push rod and the push rod base.
[0011] In the above technical solution, preferably, a retractable dust cover is provided on the push rod, and the upper and lower ends of the dust cover are respectively against the machine head and the pressing head.
[0012] Compared with the prior art, the present invention has the following advantages and effects:
[0013] In the present invention, the motor drives the screw drive structure through the transmission mechanism to drive the compression head to move up and down. Therefore, the position of chest compression on the patient's chest cavity is placed below the compression head, and the chest compression operation on the patient can be achieved through the up and down reciprocating movement of the compression head. Because the motor and the screw drive structure are arranged horizontally and side by side in the handpiece and are driven by the transmission mechanism, the upper and lower thickness of the handpiece can be reduced, and the height of the motor can be reduced, thereby lowering the center of gravity of the handpiece, reducing the risk of the cardiopulmonary resuscitation device tipping over when placed, and improving the stability of the cardiopulmonary resuscitation device when placed and used, which is conducive to the stable operation of the cardiopulmonary resuscitation device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front structural schematic diagram of the driving structure of the cardiopulmonary resuscitation device according to an embodiment of the present utility model.
[0015] Figure 2 yes Figure 1 Schematic diagram of the middle part structure.
[0016] Figure 3 yes Figure 2 Side sectional view of the middle screw transmission structure.
[0017] Figure 4 yes Figure 1 Schematic diagram of the overall structure of the middle machine head.
[0018] Among them, the machine head 1, the motor base 11, the motor 2, the screw transmission structure 3, the screw 31, the push rod 32, the push rod base 33, the limiting hole 34, the slide rod 35, the rotating bearing 36, the sliding bearing 37, the pressing head 4, the transmission mechanism 5, the synchronous wheel 51, the synchronous belt 52, the optical coupler support plate 6, the slotted optical coupler 61, and the dust cover 7. DETAILED DESCRIPTION
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.
[0020] See also Figure 1-Figure 4 The present embodiment provides a driving structure of a cardiopulmonary resuscitation device, including a handpiece 1, a motor 2, a screw transmission structure 3 and a pressing head 4. The motor 2 is fixed in the handpiece 1, the screw transmission structure 3 is arranged on the right side of the motor 2, and a transmission mechanism 5 is arranged between the output shaft of the motor 2 and the screw transmission structure 3. The motor 2 drives the screw transmission structure 3 to work through the transmission mechanism 5. The pressing head 4 is arranged on the screw transmission structure 3 and is driven to move up and down by the screw transmission structure 3.
[0021] In the present invention, the motor 2 drives the screw transmission structure 3 through the transmission mechanism 5, and the screw transmission structure 3 drives the compression head 4 to move up and down, so that the position of the chest compression on the patient's chest cavity is placed below the compression head 4, and the chest compression operation on the patient can be achieved through the up and down reciprocating movement of the compression head 4. Since the motor 2 and the screw transmission structure 3 in the present invention are arranged horizontally and side by side in the head 1 and are transmitted through the transmission mechanism 5, compared with the existing cardiopulmonary resuscitation device in which the motor 2 and the screw transmission structure 3 are connected coaxially up and down, the present invention can reduce the upper and lower thickness of the head 1 while reducing the height of the motor 2, thereby lowering the center of gravity of the head 1, reducing the risk of the cardiopulmonary resuscitation device tipping over when placed, and improving the stability of the cardiopulmonary resuscitation device when placed and used, which is conducive to the stable operation of the cardiopulmonary resuscitation device.
[0022] See also Figure 2 、 Figure 3 The screw transmission structure 3 includes a screw rod 31 and a push rod 32. The screw rod 31 is vertically rotatable and arranged in the machine head 1. The push rod 32 slides up and down and is non-rotatable and is arranged in the machine head 1. The push rod 32 is connected to the screw rod 31 through a threaded structure, and the pressing head 4 is fixed to the lower end of the push rod 32.
[0023] Motor 2 drives screw 31 to rotate via transmission mechanism 5. Since push rod 32 slides up and down and is non-rotatably disposed within handpiece 1, rotation of screw 31 causes push rod 32 to move up and down through the threaded connection between the two rods, thereby driving compression head 4 up and down to perform chest compressions on the patient. In the present invention, motor 2 utilizes a servo motor. The motor 2 and screw transmission mechanism 3 enable relatively precise control of the vertical movement distance of compression head 4, thereby improving the accuracy of chest compressions.
[0024] See also Figure 2 The transmission mechanism 5 includes a synchronous wheel 51 and a synchronous belt 52. A motor seat 11 is provided in the machine head 1, and the motor 2 is fixed at the lower end of the motor seat 11. Two synchronous wheels 51 are provided and are coaxially fixed to the output shaft of the motor 2 and the upper end of the screw rod 31 respectively. The synchronous belt 52 is sleeved on the two synchronous wheels 51.
[0025] When the output shaft of the motor 2 rotates, the screw rod 31 is driven to rotate through the action of the synchronous wheel 51 and the synchronous belt 52. The rotation direction of the screw rod 31 is controlled by changing the rotation direction of the output shaft of the motor 2, thereby controlling the up and down movement direction of the push rod 32 and the pressing head 4. Therefore, the output shaft of the motor 2 is repeatedly switched between forward and reverse rotation to realize the control of the up and down reciprocating movement of the pressing head 4.
[0026] See also Figure 1-Figure 3 The screw rod 31 is sleeved with a push rod base 33, and the push rod base 33 is fixed to the lower side of the motor base 11. The screw rod 31 is rotatably set in the push rod base 33, and the push rod 32 is inserted into the push rod base 33 for sliding up and down. A vertically long strip-shaped limiting hole 34 is provided on the front side of the push rod base 33, and a sliding rod 35 is fixed to the front side of the push rod 32, and the sliding rod 35 is slid up and down in the limiting hole 34.
[0027] The limiting hole 34 restricts the sliding rod 35 to move up and down only along the limiting hole 34, thereby realizing the up and down movement of the push rod 32 and preventing it from rotating. The push rod base 33 can protect and support the screw rod 31 and the push rod 32, thereby improving the stability of the movement of the screw rod 31 and the push rod 32.
[0028] See also Figure 1-Figure 3 An optical coupler support plate 6 is fixed to the front side of the push rod base 33, and two slot-type optical couplers 61 are fixed on the inner side of the optical coupler support plate 6. When the slide rod 35 moves to the upper and lower ends of the limiting hole 34, it is respectively located in the two slot-type optical couplers 61.
[0029] According to the working principle of the slot-type optical coupler 61, the slot-type optical coupler 61 located at the top is used to detect the starting position of the slide bar 35 when the power is turned on, and the slot-type optical coupler 61 located at the bottom is used to detect the end position of the slide bar 35, so that the push rod 32 can stay in the correct position when the power is turned on.
[0030] See also Figure 3 A rotating bearing 36 is provided between the screw rod 31 and the push rod base 33 , and a sliding bearing 37 is provided between the push rod 32 and the push rod base 33 .
[0031] The rotating bearing 36 and the sliding bearing 37 can respectively reduce the friction force when the screw rod 31 rotates and the push rod 32 slides, reduce the friction resistance and friction wear during the movement of the screw rod 31 and the push rod 32, and improve the stability of the movement of the screw rod 31 and the push rod 32.
[0032] See also Figure 1 、 Figure 4 The push rod 32 is provided with a retractable dust cover 7, and the upper and lower ends of the dust cover 7 are respectively against the machine head 1 and the pressing head 4.
[0033] When the pressing head 4 moves up and down, the dust cover 7 extends and compresses accordingly, so that the upper and lower ends of the dust cover 7 remain in contact with the machine head 1 and the pressing head 4, ensuring that the dust cover 7 can always shield the side of the push rod 32. Since dust will increase the friction between the push rod 32 and the sliding bearing 37, thereby increasing the wear of the push rod 32 and the sliding bearing 37 and increasing the failure rate, the dust cover 7 can reduce the probability of dust adhering to the push rod 32 and entering the machine head 1, thereby reducing the failure rate of the utility model.
[0034] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.
Claims
1. A driving structure of a cardiopulmonary resuscitation apparatus, characterized in that: It includes a machine head, a motor, a screw transmission structure and a pressing head. The motor is fixed in the machine head. The screw transmission structure is arranged on the right side of the motor. A transmission mechanism is arranged between the output shaft of the motor and the screw transmission structure. The motor drives the screw transmission structure to work through the transmission mechanism. The pressing head is arranged on the screw transmission structure and drives the pressing head up and down through the screw transmission structure. The screw transmission structure includes a screw rod and a push rod. The screw rod is vertically rotated and arranged in the machine head. The push rod slides up and down and is non-rotatable and is arranged in the machine head. The push rod is sleeved on the screw rod through a threaded structure. The pressing head is fixed to the lower end of the push rod, the push rod base is sleeved on the screw rod, the push rod base is fixed to the lower side of the motor base, the screw rod is rotatably arranged in the push rod base, the push rod is inserted in the push rod base for sliding up and down, a vertically elongated limiting hole is provided on the front side of the push rod base, a sliding rod is fixed on the front side of the push rod, the sliding rod is slid up and down in the limiting hole, an optical coupler support plate is fixed on the front side of the push rod base, two slot-type optical couplers are fixed on the inner side of the optical coupler support plate, and the sliding rod is respectively located in the two slot-type optical couplers when it moves to the upper and lower ends of the limiting hole.
2. The driving structure of the cardiopulmonary resuscitation device according to claim 1, characterized in that: The transmission mechanism includes a synchronous wheel and a synchronous belt. A motor seat is provided in the machine head. The motor is fixed at the lower end of the motor seat. Two synchronous wheels are provided and are coaxially fixed to the output shaft of the motor and the upper end of the screw rod respectively. The synchronous belt is sleeved on the two synchronous wheels.
3. The driving structure of the cardiopulmonary resuscitation device according to claim 1, characterized in that: A rotating bearing is provided between the screw rod and the push rod base, and a sliding bearing is provided between the push rod and the push rod base.
4. The driving structure of the cardiopulmonary resuscitation device according to claim 1, characterized in that: A retractable dust cover is sleeved on the push rod, and the upper and lower ends of the dust cover are respectively against the machine head and the pressing head.