Cardiopulmonary resuscitation machine with anti-falling self-locking mechanism
By designing an anti-detachment self-locking mechanism, the patient's weight and compression pressure are used to automatically lock the insert plate and resuscitation plate together, solving the problem of easy detachment of the insert plate and achieving a stable connection between the insert plate and resuscitation plate, thus improving the stability and reliability of the cardiopulmonary resuscitation machine.
Patent Information
- Application Number
- CN202511364671.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2025-11-21
AI Technical Summary
The resuscitation plate of existing cardiopulmonary resuscitation machines is prone to detaching from the resuscitation plate under vertical and horizontal forces, affecting the resuscitation process.
A self-locking mechanism to prevent detachment was designed, which automatically locks the insert plate to the resuscitation plate using the patient's weight and pressure. The insert plate is stably connected through a spring pin mechanism and a lever mechanism, ensuring that the insert plate is not easily detached from the resuscitation plate.
A stable connection between the insert plate and the resuscitation plate is achieved, ensuring that they are not easily separated during compression, thus improving the stability and reliability of the cardiopulmonary resuscitation machine.
Smart Images
Figure CN120983259A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism. Background Technology
[0002] Cardiopulmonary resuscitation (CPR) machines are medical emergency devices that use machinery to perform basic life support procedures such as chest compressions, replacing manual labor. Rapid and stable chest compressions are especially important when a patient experiences cardiac arrest. Most CPR machines on the market currently use detachable resuscitation boards to facilitate patient placement. In use, the main unit is typically separated from the resuscitation board, the patient is placed flat on the board, and the main unit is then connected via a connector inserted into the board's cavity. The main unit is then activated to begin compressions. However, because the main unit experiences both upward and horizontal forces during compressions, the connector can easily detach from the resuscitation board, hindering the resuscitation process. Summary of the Invention
[0003] The purpose of this invention is to provide a cardiopulmonary resuscitation (CPR) machine with an anti-detachment self-locking mechanism. This mechanism not only allows the insertion plate of the main unit to be smoothly inserted into the resuscitation board when the person is lying on the board, but also automatically unlocks the self-locking mechanism during the insertion process. It automatically locks the insertion plate to the resuscitation board using the patient's weight. The heavier the patient and the greater the pressure applied, the less likely the insertion plate is to detach from the resuscitation board, thereby ensuring the stability of the CPR machine during the compression resuscitation process.
[0004] The technical solution of the present invention is as follows: A cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism includes a main unit and a resuscitation plate. The main unit includes a column and an insert plate vertically connected to the column. The resuscitation plate includes an inner cavity, and the inner cavity has an insertion interface for inserting the insert plate at the rear end of the resuscitation plate. A pressure plate is provided on the upper surface of the resuscitation plate. One end of the pressure plate is hinged to the front end of the resuscitation plate, and the other end of the pressure plate is connected to a spring pin mechanism via a connecting rod. The upper part of the rear end of the resuscitation plate has a sliding hole extending into the inner cavity. The spring pin mechanism is slidably assembled in the sliding hole. A horizontally extending locking hole is provided on the connecting rod. A corresponding locking pin is provided in the resuscitation plate. The locking pin and the locking hole can be inserted and engaged to restrict the rotation of the pressure plate. A lever mechanism is hinged to the other end of the locking pin. The lower end of the lever mechanism extends into the inner cavity. A limiting groove and a driving block are respectively provided on the upper surface of the insert plate. The limiting groove allows the lower end of the spring pin mechanism to be inserted. The driving block can push the lower end of the lever to pull the locking pin out of the locking hole. The lever mechanism also includes a torsion spring for driving the lever to reset.
[0005] The beneficial effects of this technical solution are as follows: During use, the main unit and the resuscitation plate are first separated. The patient is placed on the pressure plate of the resuscitation plate. Initially, the pressure plate is in a non-contact state with the locking pin inserted into the locking hole. Then, the main unit is inserted into the insertion interface of the resuscitation plate via an insert plate. The spring pin mechanism automatically avoids the upper surface of the insert plate. When the drive block contacts the lower end of the lever of the lever mechanism, it pushes the lever to rotate, causing the upper end of the lever to pull the locking pin out of the locking hole on the connecting rod. The connecting rod is no longer restricted by the locking pin, and the pressure plate rotates downwards under the patient's weight, causing the spring pin mechanism to move downwards as a whole. Simultaneously, the limiting groove on the insert plate moves to the position corresponding to the spring pin mechanism, allowing the spring pin mechanism to insert into the limiting groove on the insert plate, thus locking the insert plate relative to the resuscitation plate. Furthermore, due to the patient's weight acting on the pressure plate, and the subsequent start-up of the main unit... The pressure applied to the patient is transmitted to the spring pin mechanism, ensuring it remains firmly positioned within the limiting groove. The greater the patient's weight and the greater the pressure applied by the main unit, the greater the force on the pressure plate. This results in a greater force pressing the spring pin mechanism into the limiting groove, preventing it from easily disengaging. Especially during main unit compressions, the greater the pressure, the less likely the spring pin mechanism is to detach, thus better resisting the horizontal force transmitted to the main unit and preventing the insertion plate from disengaging from the resuscitation plate. When the patient leaves the pressure plate, the spring pin mechanism's rebound force and the plate's own elasticity allow it to lift. Once the insertion plate is removed from the resuscitation plate's insertion interface, the lever mechanism resets under the action of the torsion spring, causing the locking pin to press against the connecting rod. Shaking the pressure plate allows the locking pin to re-insert into the locking hole for future use. Therefore, compared with the prior art, this technical solution has the advantages of stable and reliable connection between the insert plate and the resuscitation plate, convenient insertion, and automatic locking. Furthermore, it utilizes the patient's weight and the force of the compression to convert it into the compression force on the spring pin mechanism, making it impossible for the spring pin mechanism to disengage from the limiting groove. The most ingenious aspect of this solution is that it transforms the compression force, which is originally unfavorable to the stable connection between the insert plate and the resuscitation plate, into a force that is favorable to the stable connection between the insert plate and the resuscitation plate. Thus, compared with the prior art where the greater the compression force, the easier it is for the two to separate, we have achieved the technical effect that the greater the compression force, the less likely the two will separate.
[0006] Based on the above scheme, further improvements are made as follows: the spring pin mechanism includes a sleeve with an open lower end, a pin block slidably assembled inside the sleeve, and a compression spring connecting the pin block and the sleeve. The outer diameter of the sleeve is smaller than the inner diameter of the limiting groove. The sleeve configuration of the spring pin mechanism and the design of the sleeve's outer diameter being smaller than the limiting groove allow both the pin block and the sleeve of the spring pin mechanism to be inserted into the limiting groove when the pressure plate presses on the spring pin mechanism. Utilizing the double limiting effect of the pin block and the sleeve, greater shear resistance is achieved, thereby ensuring that the insert plate and the recovery plate are less likely to separate.
[0007] Based on the above solution, further improvements are made as follows: the resuscitation plate is also provided with a guide hole that slides and engages with the locking pin, and the axis of the guide hole is parallel to the axis of the locking hole. The guide hole ensures that the locking pin can move horizontally, thereby allowing for precise insertion into the guide hole of the connecting rod, which is guided and limited by the sliding hole, avoiding situations where the two are misaligned and difficult to insert.
[0008] Based on the above solution, the following improvement is made: the diameter of the locking hole is larger than the diameter of the locking pin. This allows for sufficient error margin when inserting the locking pin.
[0009] Based on the above solution, the following improvement is made: one end of the locking pin that mates with the locking hole has a ball head. The ball head serves as a guide, ensuring easier insertion and preventing jamming.
[0010] Based on the above solution, the following improvements are made: the lower end of the pin block has a ball head. The ball head serves a guiding function, ensuring easier insertion and preventing jamming.
[0011] Based on the above solution, the following improvement is made: the pressure plate is made of stainless steel. Stainless steel has high rigidity.
[0012] Based on the above solution, the following improvements are made: a return spring is installed between the pressure plate and the resuscitation plate to provide an elastic force for the pressure plate to lift upwards. The return spring ensures that after one rescue operation, the pressure plate can rotate upwards so that the locking pin can be smoothly inserted into the locking hole.
[0013] Based on the above solution, the following improvements are made: a knob lock is provided on the resuscitation plate. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a specific embodiment of the cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism of the present invention; Figure 2 for Figure 1 A 3D view of the corresponding main unit; Figure 3 for Figure 1 A 3D view of the corresponding resuscitation plate section; Figure 4 A schematic diagram illustrating the structural principle of the locking mechanism between the insertion plate and the resuscitation plate; Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 for Figure 5 A schematic diagram illustrating the principle of the insertion process between the corresponding insertion plate and the resuscitation plate; In the diagram: 1-Main unit, 11-Column, 12-Insertion plate, 13-Pressing module, 2-Resuscitation plate, 21-Inner cavity, 22-Insertion interface, 23-Pressure plate, 24-Hinge shaft, 25-Connecting rod, 251-Locking hole, 26-Spring pin mechanism, 261-Sleeve, 262-Pin block, 263-Compression spring, 27-Sliding hole, 28-Locking pin, 29-Lever, 291-Torsion spring, 210-Limiting groove, 211-Drive block, 212-Guide hole, 213-Knob lock. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0016] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0017] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0018] The features and performance of the present invention will be further described in detail below with reference to embodiments.
[0019] A specific embodiment of the cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism of the present invention is as follows: Figure 1-6As shown, the cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism includes a main unit 1 and a resuscitation plate 2. The main unit 1 includes a column 11 and an insertion plate 12 perpendicularly connected to the column 11. The resuscitation plate 2 includes an inner cavity 21, and the inner cavity 21 has an insertion interface 22 at the rear end of the resuscitation plate 2 for inserting the insertion plate 12. A pressure plate 23 is provided on the upper surface of the resuscitation plate 2. One end of the pressure plate 23 is hinged to the front end of the resuscitation plate 2, and the other end of the pressure plate 23 is connected to a spring pin mechanism 26 via a connecting rod 25. The upper part of the rear end of the resuscitation plate 2 has a sliding hole 27 extending into the inner cavity 21. The spring pin mechanism 26 is slidably assembled in the sliding hole 27. The connecting rod 25... The plate 5 has a horizontally extending locking hole 251, and the recovery plate 2 has a corresponding locking pin 28. The locking pin 28 and the locking hole 251 can be inserted and engaged to restrict the rotation of the pressure plate 23. The other end of the locking pin 28 is hinged to a lever mechanism. The lower end of the lever 29 of the lever mechanism extends into the inner cavity 21. The upper surface of the insert plate 12 is provided with a limiting groove 210 and a driving block 211. The limiting groove 210 allows the lower end of the spring pin mechanism 26 to be inserted. The driving block 211 can push the lower end of the lever 29 to pull the locking pin 28 out of the locking hole 251. The lever mechanism also includes a torsion spring 291 that drives the lever 29 to reset.
[0020] The spring pin mechanism 26 includes a sleeve 261 with an open lower end, a pin block 262 slidably fitted inside the sleeve 261, and a compression spring 263 connecting the pin block 262 and the sleeve 261. The outer diameter of the sleeve 261 is smaller than the inner diameter of the limiting groove 210. The sleeve 261 of the spring pin mechanism 26 and the design that the outer diameter of the sleeve 261 is smaller than the limiting groove 210 allow the pin block 262 and the sleeve 261 of the spring pin mechanism 26 to be inserted into the limiting groove 210 when the pressure plate 23 presses the spring pin mechanism 26. By utilizing the double limiting of the pin block 262 and the sleeve 261, greater shear resistance is achieved, thereby ensuring that the insert plate 12 and the recovery plate 2 are less likely to separate.
[0021] The resuscitation plate 2 is also provided with a guide hole 212 that slides and engages with the locking pin 28. The axis of the guide hole 212 is parallel to the axis of the locking hole 251. The guide hole 212 ensures that the locking pin 28 can move horizontally, so that it can be accurately inserted into the guide hole 212 of the connecting rod 25, which is guided and limited by the sliding hole 27, avoiding the situation where the two are misaligned and difficult to insert.
[0022] The diameter of the locking hole 251 is larger than the diameter of the locking pin 28. This allows for sufficient tolerance when inserting the locking pin 28. The end of the locking pin 28 that mates with the locking hole 251 has a ball head. The ball head serves as a guide, ensuring easier insertion and preventing jamming. The lower end of the pin block 262 also has a ball head. The ball head serves as a guide, ensuring easier insertion and preventing jamming. The pressure plate 23 is made of stainless steel. Stainless steel has high rigidity.
[0023] In other embodiments, a return spring is provided between the pressure plate 23 and the resuscitation plate 2, providing an elastic force to the pressure plate 23 in the upward lifting direction. The return spring ensures that after one rescue operation, the pressure plate 23 can be rotated upward so that the locking pin 28 can be smoothly inserted into the locking hole 251.
[0024] The resuscitation plate 2 is equipped with a knob lock 213, which can be turned to connect the insert plate 12 and the resuscitation plate 2 to achieve a second level of locking.
[0025] In use, the main unit 1 and the resuscitation plate 2 are first separated. The patient is placed on the pressure plate 23 on the resuscitation plate 2. Initially, the pressure plate 23 is in a non-contact state with the locking pin 28 inserted into the locking hole 251. Then, the main unit 1 is inserted into the insertion interface 22 of the resuscitation plate 2 through the insertion plate 12. The spring pin mechanism 26 can automatically avoid the upper surface of the insertion plate 12. When the drive block 211 contacts the lower end of the lever 29 of the lever mechanism, it will push the lever 29 to rotate, causing the upper end of the lever 29 to pull the locking pin 28, thus locking the plate. Pin 28 is pulled out from the locking hole 251 on the connecting rod 25, and the connecting rod 25 is no longer restricted by the locking pin 28. The pressure plate 23 rotates downward under the patient's weight, causing the spring pin mechanism 26 to move downward as a whole. At the same time, the limiting groove 210 on the insert plate 12 moves to the position corresponding to the spring pin mechanism 26, and the spring pin mechanism 26 can be inserted into the limiting groove 210 on the insert plate 12, realizing the locking of the insert plate 12 relative to the resuscitation plate 2. Furthermore, due to the patient's weight acting on the pressure plate 23, and the subsequent activation of the main unit 1, the pressure plate 23 is locked. The pressure applied by the patient is transmitted to the spring pin mechanism 26, ensuring that the spring pin mechanism 26 remains firmly positioned within the limiting groove 210. The greater the patient's weight and the greater the pressure applied by the main unit 1, the greater the force on the corresponding pressure plate 23. Consequently, the force pressing the spring pin mechanism 26 into the limiting groove 210 is also greater, ensuring that the spring pin mechanism 26 is less likely to disengage from the limiting groove 210. Especially during the pressing process of the main unit 1, the greater the pressing force, the less likely the spring pin mechanism 26 is to disengage from the limiting groove 210, and the better it resists the transmission of pressure. The horizontal force applied to the main unit 1 prevents the insert plate 12 from detaching from the resuscitation plate 2. When the patient leaves the pressure plate 23, the pressure plate 23 is no longer under pressure. The rebound force of the spring pin mechanism 26 and the elastic force of the pressure plate 23 itself can lift the pressure plate 23. When the insert plate 12 is pulled out from the insertion interface 22 of the resuscitation plate 2, the lever mechanism is reset under the action of the torsion spring 291, which drives the locking pin 28 to press towards the connecting rod 25. Shaking the pressure plate 23 can make the locking pin 28 re-insert into the locking hole 251 for reuse next time. Therefore, compared with the prior art, this technical solution has the advantages of stable and reliable connection between the insert plate 12 and the resuscitation plate 2, convenient insertion, and automatic locking. Furthermore, it utilizes the patient's weight and pressing force to convert them into pressing force on the spring pin mechanism 26, making it impossible for the spring pin mechanism 26 to disengage from the limiting groove 210. The most ingenious aspect of this solution is that it transforms the pressing force, which is originally unfavorable to the stable connection between the insert plate 12 and the resuscitation plate 2, into a force that is favorable to the stable connection between the insert plate 12 and the resuscitation plate. Thus, compared with the prior art where the greater the pressing force, the easier it is for the two to separate, we have achieved the technical effect that the greater the pressing force, the less likely the two will separate.
[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.
Claims
1. A cardiopulmonary resuscitation (CPR) machine with an anti-detachment self-locking mechanism, comprising a main unit and a resuscitation plate, the main unit comprising a column and an insert plate perpendicularly connected to the column; the resuscitation plate comprising an inner cavity, the inner cavity having an insertion interface at the rear end of the resuscitation plate for inserting the insert plate, characterized in that, The upper surface of the resuscitation plate is provided with a pressure plate. One end of the pressure plate is hinged to the front end of the resuscitation plate, and the other end of the pressure plate is connected to a spring pin mechanism via a connecting rod. The upper part of the rear end of the resuscitation plate has a sliding hole that extends into the inner cavity. The spring pin mechanism is slidably assembled in the sliding hole. The connecting rod is provided with a horizontally extending locking hole. A corresponding locking pin is provided inside the resuscitation plate. The locking pin and the locking hole can be inserted and engaged to restrict the rotation of the pressure plate. The other end of the locking pin is hinged to a lever mechanism. The lower end of the lever mechanism extends into the inner cavity. The upper surface of the insertion plate is provided with a limiting groove and a driving block. The limiting groove allows the lower end of the spring pin mechanism to be inserted. The driving block can push the lower end of the lever to pull the locking pin out of the locking hole. The lever mechanism also includes a torsion spring that drives the lever to reset.
2. The cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism according to claim 1, characterized in that, The spring pin mechanism includes a sleeve with an open lower end, a pin block slidably assembled inside the sleeve, and a compression spring connecting the pin block and the sleeve. The outer diameter of the sleeve is smaller than the inner diameter of the limiting groove.
3. The cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism according to claim 1, characterized in that, The resuscitation plate is also provided with a guide hole that slides with the locking pin, and the axis of the guide hole is parallel to the axis of the locking hole.
4. The cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism according to claim 1, characterized in that, The diameter of the locking hole is larger than the diameter of the locking pin.
5. The cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism according to claim 1, characterized in that, The end of the locking pin that mates with the locking hole has a ball head.
6. The cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism according to claim 2, characterized in that, The lower end of the pin has a ball head.
7. The cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism according to claim 1, characterized in that, The pressure plate is made of stainless steel.
8. The cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism according to claim 1, characterized in that, A return spring is provided between the pressure plate and the recovery plate to provide an elastic force to the pressure plate in the upward lifting direction.
9. The cardiopulmonary resuscitation machine with an anti-detachment self-locking mechanism according to claim 1, characterized in that, The resuscitation panel is equipped with a rotary lock.