A compression gesture fixing device for cardiopulmonary resuscitation

Abstract

The present application relates to the technical field of cardiopulmonary resuscitation presser, disclose a kind of press gesture fixing device for cardiopulmonary resuscitation, including palm support plate, fit in the sternum area of patient, still include a pair of support set on the upper surface of palm support plate, support shaft is set on a pair of support, press plate is rotatably arranged on support shaft, wrist support is arranged at the end of press plate away from support shaft;Impact box is arranged below press plate, impact plate is slidably arranged in impact box, elastic member is abutted on the top of impact plate, and elastic member is abutted with press plate, the upper surface of palm support plate is provided with abutment rod, the bottom of impact box has the through slot for abutment rod to pass through, and the through hole for abutment rod to pass through is formed in impact plate.The device is triggered by abutment rod, inclined rod, belt bending slot transmission structure, elastic member and impact plate composition linkage trigger type secondary impact mechanism, and auxiliary impact is completed by automatically releasing elastic potential energy at the end of artificial standard press stroke.

Description

Technical Field

[0001] This invention relates to the technical field of cardiopulmonary resuscitation (CPR) compression devices, and more particularly to a compression hand gesture fixation device for CPR. Background Technology

[0002] Cardiopulmonary resuscitation (CPR) compression assist devices are used to assist or replace manual chest compressions. They provide stable, consistent compressions mechanically or electronically. Key functions include real-time feedback on compression depth and frequency, or automatic compression execution via mechanical mechanisms. These devices help improve the quality of compressions, especially providing guidance to non-professional rescuers and reducing their physical exertion.

[0003] A manual cardiopulmonary resuscitation device is disclosed in patent application number CN202510717680.7, including a support plate, straps, a rigid bracket, and a back plate. The support plate has a through hole in the middle, through which a pressing column is inserted. A pressure plate is provided at the top of the pressing column, and a pressing head is provided at the bottom of the pressing column. The circumference of the pressure plate is larger than that of the pressing column. An elastic element is sleeved on the pressing column connected below the pressure plate. The elastic element is located between the pressure plate and the support plate. The pressing head is located below the support plate. The support plate is detachably connected to the back plate through the rigid bracket. The straps are divided into a left strap and a right strap. The upper ends of the left strap and the right strap are detachably connected to the left and right ends of the base plate, respectively, and the lower ends of the left strap and the right strap are detachably connected to the back plate, respectively.

[0004] The existing technology has the following drawbacks: Currently, cardiopulmonary resuscitation (CPR) chest compressions in clinical and pre-hospital emergency care primarily rely on manual operation by the rescuer. This existing method has numerous unavoidable technical drawbacks. Manual compression depends entirely on the rescuer's subjective control of the compression gestures, angle of force, and depth, making it prone to problems such as wrist bending, pressure line deviation, and palm heel displacement. This not only easily causes chest wall contusions but also fails to meet standardized compression quality control requirements. In prolonged emergency situations, rescuers are prone to exhaustion, resulting in insufficient compression force, inadequate chest compression, and a significant decrease in resuscitation blood supply. Furthermore, manual compressions lack dedicated positioning and limiting structures, making it easy for the compression target to shift when force is applied to the curved surface of the chest. There are no automatic counting, posture correction, or parameter prompts. Compression quality relies entirely on human experience, and data from the emergency process cannot be recorded and traced in real time. The quality of on-site CPR operations is difficult to control uniformly, impacting the success rate of CPR for critically ill patients. Summary of the Invention

[0005] In view of the above-mentioned problems in the existing technology, a compression hand gesture fixation device for cardiopulmonary resuscitation is proposed.

[0006] One aspect of this application provides a cardiopulmonary resuscitation (CPR) hand gesture fixation device, the purpose of which is to provide a CPR hand gesture fixation device that simplifies on-site operation, standardizes restraint rescue, and provides good compression effect.

[0007] The technical solution of the present invention is: a cardiopulmonary resuscitation compression hand gesture fixation device, including a palm support plate that fits against the patient's sternal region, and a pair of brackets disposed on the upper surface of the palm support plate, a support shaft disposed on the pair of brackets, a compression plate rotatably disposed on the support shaft, and a wrist support disposed at the end of the compression plate away from the support shaft. An impact box is provided below the pressing plate, and an impact plate is slidably arranged inside the impact box. An elastic element abuts against the top of the impact plate, and the elastic element abuts against the pressing plate. A push rod is provided on the upper surface of the palm support plate. A through groove for the push rod to pass through is provided at the bottom of the impact box, and a through hole for the push rod to pass through is provided on the impact plate. When the pressing plate is pressed down, the push rod pushes the impact plate to squeeze the elastic element. When the pressing plate is in contact with the palm support plate, the push rod passes through the through hole through the impact plate, and the elastic element releases the impact plate to impact the palm support plate downward.

[0008] Furthermore, a bending groove is provided at the root of the abutment rod, an inclined rod is provided on the palm support plate, the bottom end of the inclined rod abuts against the rod wall of the abutment rod, a positioning groove is provided at the edge of the through hole, and the top of the abutment rod is engaged in the positioning groove.

[0009] Furthermore, a counter is connected to one end of the support shaft.

[0010] Furthermore, the pressing plate is provided with a finger isolation structure for separating the five fingers.

[0011] Furthermore, the wrist rest is equipped with a wrist adjuster.

[0012] Furthermore, the pressing plate is provided with a palm heel recess groove.

[0013] Furthermore, the edge of the palm rest plate is provided with symmetrical curved portions, and the curved portions are provided with strap openings.

[0014] Furthermore, the bottom of the palm rest is provided with anti-slip particles.

[0015] Furthermore, a chest seam positioning strip is provided at the bottom of the palm support plate.

[0016] Furthermore, the upper end of the impact box is provided with a protruding edge, and the lower part of the pressing plate is provided with a retaining edge, with the protruding edge engaging within the retaining edge.

[0017] The beneficial effects of this invention are: 1. Standardized restraint of chest compression hand gestures to avoid common problems with manual operation: Multi-dimensional mechanical restraint is formed through an elastic wrist support, adjustable wrist adjuster, palm heel groove and finger isolation structure, which fixes the chest compression hand gesture from all aspects, including wrist flexion and extension angle, palm heel force point, and finger placement. It can effectively prevent problems such as wrist tilt, non-vertical compression line, and palm heel point drift during the compression process. At the same time, it physically isolates the rescuer's fingers from contact with the patient's chest wall, avoiding local pressure that may cause chest wall skin contusion. The double-ring wrist adjuster is adapted to different adult wrist sizes and is suitable for use by various types of rescuers.

[0018] 2. A secondary impact mechanism is set up to improve the efficiency of CPR compressions: A linkage-triggered secondary impact mechanism is formed by a lever, a tilting lever, a transmission structure with a bending groove, an elastic element, and an impact plate. It automatically releases elastic potential energy at the end of the standard manual compression stroke to complete the auxiliary impact; it enhances the compression amplitude of the patient's chest and the fluctuation of chest cavity pressure, improves the effect of pleural blood return perfusion, compensates for the deficiency of insufficient compression force after the rescuer's physical strength declines, and improves the basic efficacy of CPR emergency treatment.

[0019] 3. Multi-dimensional positioning and anti-slip design ensures accurate compression points throughout the entire process: The palm support plate integrates a triple passive positioning and anti-slip structure consisting of a chest wall adaptation curve, a chest seam positioning strip, and bottom anti-slip particles. This structure can accurately conform to the standard compression area of ​​the patient's sternum and match the physiological contour of the human chest. With the optional chest strap structure, it can meet the needs of long-term uninterrupted chest compressions and artificial ventilation combined emergency rescue scenarios, preventing the overall device from slipping and the compression target from shifting, thus ensuring the stability of long-term emergency operations.

[0020] 4. Simplify on-site operation and achieve precise control of compression frequency: The support shaft is equipped with a Hall counter, which can automatically accumulate the number of compressions, eliminating the burden of manual counting; the overall operation logic of the device is simple, requiring only two pre-processing steps of device positioning and wrist fixation to start rhythmic compressions, reducing the learning threshold for non-professional rescuers to perform standardized CPR operations; the impact box adopts a snap-on detachable assembly structure, which facilitates the disassembly, repair and replacement of parts.

[0021] 5. Intelligent real-time correction and parameter guidance to improve CPR operation qualification rate: Equipped with an active real-time correction and data transmission assistance module, it collects compression posture and compression depth data in real time through sensors; it actively reminds rescuers to correct posture and compression depth through vibration, sound and light signals to address problems such as posture deviation and excessive / inadequate compression depth; the buzzer beat tone unifies the rescue compression frequency, standardizing the three core CPR quality control indicators of compression depth, frequency and verticality from the hardware level. Attached Figure Description

[0022] Figure 1 This is a perspective view of the compression hand gesture fixation device for cardiopulmonary resuscitation of the present invention; Figure 2 For the present invention Figure 1 Other perspectives; Figure 3 This is a front view of the compression gesture fixation device for cardiopulmonary resuscitation of the present invention; Figure 4 This is a bottom view of the compression hand gesture fixation device for cardiopulmonary resuscitation of the present invention; Figure 5 This is a top view of the compression hand gesture fixation device for cardiopulmonary resuscitation of the present invention; Figure 6 For the present invention Figure 5 Sectional view at point AA; Figure 7 For the present invention Figure 5 Sectional view at point BB; Figure 8 For the present invention Figure 5 A schematic diagram of the rotation process of the pressing plate.

[0023] In the picture: 1. Palm rest plate; 2. Bracket; 3. Support shaft; 4. Pressing plate; 5. Wrist rest; 6. Impact box; 7. Impact plate; 8. Elastic element; 9. Support rod; 10. Through groove; 11. Through hole; 12. Bending groove; 13. Tilt rod; 14. Positioning groove; 15. Counter; 16. Finger isolation structure; 17. Wrist adjuster; 18. Palm root recess groove; 19. Bending part; 20. Strap opening; 21. Anti-slip particles; 22. Chest seam positioning strip; 23. Raised edge; 24. Edge retainer. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Example, refer to Figures 1-8This invention provides a cardiopulmonary resuscitation (CPR) hand gesture fixation device, including a flat palm support plate 1. The palm support plate 1 is made entirely of medical-grade rigid polymer material, and its surface contour conforms to the shape of the human chest, allowing it to fit flatly and snugly against the core area of ​​the patient's sternum, serving as the bottom bearing reference and pressure base of the entire device. The device also includes a pair of brackets 2 symmetrically fixed on the left and right sides of the upper surface of the palm support plate 1. The brackets 2 are integrally injection molded and vertically fixed to the surface of the palm support plate 1 by a combination of bolt locking and adhesive bonding, ensuring no displacement or shaking during force application. A cylindrical rigid support shaft 3 is horizontally mounted between the pair of brackets 2. The two ends of the support shaft 3 are interference-fitted and fixed in the pre-reserved mounting holes on the upper part of the brackets 2, with no relative rotation. A pressure plate 4 is rotatably mounted on the support shaft 3, allowing the pressure plate 4 to swing up and down in an arc around the support shaft 3 as a rotation fulcrum, completing the reciprocating compression action of CPR. The free end of the pressing plate 4 away from the support shaft 3 is integrally molded with a wrist support 5. The wrist support 5 is made of high elastic medical soft silicone material and is integrally connected to the pressing plate 4 by casting. It has the ability to adapt to elastic deformation. An arc-shaped wrist receiving groove is opened on its inner side, which can directly wrap and fix the rescuer's right wrist and limit the large range of posture displacement of the rescuer's right hand during the pressing process.

[0026] A rectangular closed shell impact box 6 is detachably assembled at the center of the lower surface of the pressing plate 4. The impact box 6 swings synchronously with the pressing plate 4 around the support shaft 3. The impact box 6 has a vertically axially arranged cylindrical sealed cavity inside. The cavity serves as a motion guide track for the impact component. A disc-shaped impact plate 7 with a shape that precisely matches the inner wall of the cavity is vertically slidably assembled inside the cavity. An annular sealing anti-slip washer is assembled on the outer edge of the impact plate 7 to ensure that the impact plate 7 can only slide straight up and down without jamming along the cavity axis. A columnar elastic element 8 is mounted on the upper surface of the impact plate 7, which is abutted against the center. The elastic element 8 is a high-resilience industrial compression spring. The top surface of the elastic element 8 is rigidly abutted against the lower surface of the pressing plate 4, and the force is transmitted without gaps. A circular mounting hole with a bottom contour dimension that is perfectly matched is opened in the center of the impact plate 7. The mounting hole adopts a countersunk hole structure, and the hole depth is greater than the axial height of the elastic element 8 after ultimate compression. This ensures that when the elastic element 8 is squeezed to the ultimate compression state, the whole structure is completely retracted and embedded in the mounting hole, eliminating the mechanical limiting interference of the elastic element 8 on the downward stroke of the pressing plate 4. A cylindrical rigid abutment rod 9 is vertically fixed at the center of the upper surface of the palm support plate 1. The abutment rod 9 is an integral solid metal rod and serves as a power trigger transmission component. A rectangular through slot 10 is provided at the axial position of the bottom plate of the impact box 6, providing space for the abutment rod 9 to move up and down and shift laterally. A circular through hole 11 is coaxially provided at the axial position of the impact plate 7. The inner diameter of the through hole 11 is larger than the outer diameter of the abutment rod 9, allowing the abutment rod 9 to pass through without friction.

[0027] When the rescuer presses down on the compression plate 4, the compression plate 4 flips downward with the support shaft 3 as the fulcrum, causing the bottom impact box 6 and the elastic element 8 to move downward simultaneously. The abutment rod 9 fixed on the palm support plate 1 moves upward and extends into the cavity of the impact box 6, first contacting the lower surface of the impact plate 7, passively pushing the impact plate 7 to slide upward along the inner wall of the cavity, squeezing the upper elastic element 8 to undergo axial compression deformation, converting the downward pressure into the elastic potential energy of the elastic element 8. As the compression plate 4 continues to move downward and approaches the surface of the palm support plate 1, the overall compression stroke of the device approaches the standard compression depth for cardiopulmonary resuscitation. The abutment rod 9 completely passes through the through hole 11 of the impact plate 7, releasing the upward pushing limit on the impact plate 7. The elastic element 8, which was previously in an energy-storing compression state, instantly releases the stored elastic potential energy, pushing the impact plate 7 downward at high speed along the cavity vertically, so that the impact plate 7 applies a secondary downward impact force to the palm support plate 1 below, completing the auxiliary impact pressure action after the main compression stroke ends.

[0028] The base of the abutment 9 near the palm support plate 1 has an annular bending groove 12 machined around its root. The bending groove 12 is a U-shaped concave groove, which is used to reduce the local structural stiffness of the base of the abutment 9, so that the upper part of the abutment 9 can be flexibly bent at a small angle under lateral thrust. The upper surface of the palm support plate 1 is fitted with an elastic support type tilting rod 13 on the side of the abutment 9. The bottom of the tilting rod 13 is movably connected to the palm support plate 1 through a universal hinge seat. The tilting rod 13 itself has a slight elastic contraction capability. There is no fixed connection at the top of the rod. Under normal conditions, the side of the tilting rod 13 is close to the abutment 9, providing lateral limiting support force for the abutment 9. The upper edge of the through hole 11 of the impact plate 7 is circumferentially arrayed with arc-shaped positioning grooves 14. The positioning grooves 14 and the top of the push rod 9 are fitted and matched. In the normal state of the device and in the early and middle stages of pressing, the top of the push rod 9 is fitted and locked inside the positioning grooves 14 to lock the axial position of the push rod 9 and the impact plate 7, ensuring that the push rod 9 can stably push the impact plate 7 to complete the energy storage action of the elastic element 8 in the early stage of pressing.

[0029] As a preferred implementation, one end of the horizontally mounted support shaft 3 extends outward from the outer side of the bracket 2 and is coaxially connected to a mechanical Hall counter 15. The housing of the counter 15 is fixed to the side wall of the outer bracket 2, and the sensing probe of the counter 15 is directly facing the swing trajectory of the pressing plate 4. Each time the pressing plate 4 completes a full up-and-down reciprocating pressing and swinging motion, the counter 15 senses a complete stroke signal, automatically accumulates and records the total number of CPR compressions, and provides intuitive feedback on the frequency of rescue compressions without the need for manual counting.

[0030] Reference Figure 1As a preferred embodiment, the upper surface of the pressure plate 4 is integrally formed with a finger isolation structure 16. The finger isolation structure 16 consists of four equally spaced parallel long strip-shaped independent finger ridges. The finger ridges are made of soft, non-slip plastic material and are evenly distributed above the force-bearing area of ​​the pressure plate 4 along the width of the palm. The four finger ridges divide the upper gripping area of ​​the pressure plate 4 into five independent finger receiving slots. After the rescuer's fingers are naturally interlaced and placed in the slots, the finger joints are naturally raised due to the limitation of the ridges. Through physical isolation, the direct contact between the rescuer's fingertips and finger joints and the patient's chest wall skin is completely isolated, avoiding the problem of excessive local pressure, chest wall skin contusion, and displacement of the pressure point caused by the fingers pressing down during the compression process.

[0031] Reference Figure 1 As a preferred embodiment, an integrated wrist adjuster 17 is installed on the inner side of the wrist support 5. The wrist adjuster 17 consists of two symmetrical flexible textile loops and a set of self-locking plastic buckles. One end of the loop is fixedly embedded in the inner walls of both sides of the wrist support 5, and the other end passes freely through the buckle slot to form a closed ring restraint structure. The inner diameter of the closed ring can be quickly adjusted by pulling the free end of the loop, and the self-locking of the buckle tightens it, achieving quick locking and fixation of the wrist. The inner wall of the wrist support 5 is lined with high-density slow-rebound memory foam, which adapts to different wrist bone contours by relying on the elastic deformation of the foam itself. This structure provides bidirectional restraint on the range of motion of the rescuer's wrist joint, eliminating common operational problems such as wrist bending, tilting of the pressure direction, and lateral drift of the palm heel pressure point during the rescuer's compression process from a mechanical structure perspective. The symmetrical arrangement of the double loops has a wide range of size adaptability, which can be compatible with most adult wrist sizes and adapt to different rescuers.

[0032] Reference Figure 1 As a preferred embodiment, the palm heel pressure area of ​​the pressure plate 4 near the wrist rest 5 is recessed with an arc-shaped palm heel groove 18. The curved surface of the groove strictly conforms to the physiological curvature of the palm heel of an adult human, forming a positioning and anti-slip cavity. After the rescuer's palm heel is naturally embedded in the groove, the palm heel is positioned by the limiting of the cavity sidewall and the frictional resistance of the contact surface, which limits the sliding displacement of the palm heel on the surface of the pressure plate 4 during the pressing process, accurately constrains the force point of the rescuer to coincide with the pressing force center of the device, and ensures that the pressing force line is vertically transmitted to the patient's sternal area.

[0033] Reference Figure 4As a preferred embodiment, the palm support plate 1 has symmetrically machined arc-shaped curved sections 19 on the outer edges of its left and right sides. The curved surfaces of the curved sections 19 conform to the outward convex physiological curvature of the two sides of the human chest, allowing the palm support plate 1 to conform to the chest contour and self-adaptively position itself, preventing the device from tilting to the left or right. A standardized strap opening 20 is opened through the curved section 19. The strap opening 20 is a long strip-shaped through-hole structure, which can be used to insert and assemble a medical flexible fixation strap. For emergency scenarios that require continuous artificial ventilation and long-term uninterrupted chest compressions, the strap can be inserted to wrap around the patient's entire chest and lock it in place, limiting the horizontal displacement of the palm support plate 1 relative to the patient's chest and preventing the device from slipping or the compression points from failing during long-term continuous compressions.

[0034] Reference Figure 4 As a preferred embodiment, the bottom surface of the palm support plate 1, which is in direct contact with the patient's chest, is injection molded with an array of hemispherical anti-slip particles 21. The friction coefficient of the anti-slip particles 21 is higher than that of the palm support plate 1 body material. The particle array is evenly distributed throughout the stress area of ​​the bottom plate, increasing the friction coefficient of the contact surface between the palm support plate 1 and the patient's chest wall skin and medical emergency dressing, helping to improve the overall anti-slip ability of the device and reduce the micro-displacement of the device caused by the pressure vibration.

[0035] Reference Figure 4 As a preferred embodiment, a long, flexible chest seam positioning strip 22 is integrally protruding from the center of the bottom surface of the palm support plate 1. The positioning strip is made of soft medical silicone and has a semi-circular convex structure in cross-section. When assembling the device, the positioning strip is placed along the contour of the sternum and chest seam of the human body. The device's central axis is accurately positioned by relying on the physiological groove of the chest seam. Together with the curved parts 19 on both sides, the device is positioned in a dual manner, further suppressing the lateral and longitudinal displacement of the device throughout the entire pressing process.

[0036] Reference Figure 6 As a preferred embodiment, the upper outer edge of the impact box 6 extends circumferentially to form an annular limiting protrusion 23, and the lower surface of the pressing plate 4 is bent downward to form an annular retaining edge 24 structure at the corresponding position. The impact box 6 is snapped and hooked onto the inner side of the retaining edge 24 of the pressing plate 4 from top to bottom through the upper protrusion 23, forming a snap-on detachable assembly structure. This assembly method does not require additional fasteners, and the impact box 6 can be quickly disassembled and replaced. At the same time, it ensures that when the pressing plate 4 is subjected to downward force, it can stably drive the impact box 6 to move synchronously without structural detachment or relative misalignment.

[0037] To further compensate for subjective judgment errors in manual operation and achieve real-time error correction and visualization of emergency data, the device is equipped with an active real-time correction and data transmission auxiliary module. The module is integrated into the palm rest 1 body and mainly consists of three parts: a posture sensing vibration unit, a compression parameter audio-visual indication unit, and a wireless data transmission unit. The palm rest 1 contains a six-axis accelerometer and a flexible pressure sensor array that collects compression posture and pressure data in real time, working with a miniature flat vibration motor to actively correct abnormal compression posture. A three-color LED light strip at the leading edge and a piezoelectric buzzer provide visualization and voice-controlled guidance for standard compression depth and frequency. A Bluetooth 5.0 module is responsible for wirelessly uploading emergency parameters and generating reports throughout the entire process, providing external monitoring and data review support for the quality of CPR operations.

[0038] The standard clinical cardiopulmonary resuscitation (CPR) procedure and the working process of each component of this device are as follows: When performing CPR, first, lay the palm support plate 1 flat on the standard compression area of ​​the patient's sternum. Fit the curved portions 19 on both sides of the palm support plate 1 against the contours of the patient's chest wall. Align the base plate so that the sternal suture positioning strip 22 at the bottom of the palm support plate 1 is fully embedded in the sternal suture groove of the patient's sternum. Simultaneously, align the line connecting the patient's nipples with the center baseline of the palm support plate 1 to complete the overall preoperative precise positioning of the device. Then, place the rescuer... The right wrist is embedded inside the elastic wrist support 5. The right hand posture is adjusted so that the rescuer's palm base fits tightly into the palm base recess 18 to complete the force application point positioning. The five fingers of the right hand are laid flat between the finger separation ridges of the finger isolation structure 16 to complete the separation and limitation of the five fingers. The ring and buckle of the wrist adjuster 17 are operated to tighten the restraint strap to fix the rescuer's right wrist joint and lock the right hand pressing posture. The rescuer's left hand fingers are tightly interlocked with the right hand finger base position, and the support shaft 3 is used as the swing axis to drive the pressing plate 4 to carry out rhythmic up and down reciprocating pressing action. During the downward pressing phase of the pressing plate 4, the top of the abutment rod 9 is stably engaged inside the positioning groove 14 of the impact plate 7, pushing the impact plate 7 upward along the cavity of the impact box 6 to compress the elastic element 8 and complete the storage of elastic potential energy; when the pressing plate 4 descends to its limit stroke and adheres to the surface of the palm support plate 1, the side structure of the pressing plate 4 compresses the tilting rod 13, and the tilting rod 13 bends laterally towards the device under pressure, simultaneously pushing the upper part of the abutment rod 9 at the root bending groove 12 to shift laterally; the top of the abutment rod 9 disengages from the positioning groove 14 and quickly aligns with the axis of the through hole 11. The impact plate 7 is penetrated, instantly releasing its upward limit; the elastic element 8, having completed its energy storage, rapidly releases its elastic potential energy, driving the impact plate 7 to strike the palm support plate 1 at high speed along the cavity; the device adds a mechanically assisted downward impact force to the single manual pressing action, enhancing the sternal compression effect, strengthening the pressure change inside the chest cavity, and better promoting blood circulation in the patient's chest cavity; at the same time, the counter 15 at the end of the support shaft 3 synchronously senses the single complete compression stroke and automatically accumulates the number of CPR compressions.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A cardiopulmonary resuscitation (CPR) hand compression fixation device, comprising a palm support plate (1) fitted to the patient's sternal region, characterized in that: It also includes a pair of brackets (2) set on the upper surface of the palm support plate (1), a support shaft (3) set on the pair of brackets (2), a pressing plate (4) rotatably set on the support shaft (3), and a wrist rest (5) set on the end of the pressing plate (4) away from the support shaft (3). An impact box (6) is provided below the pressing plate (4), and an impact plate (7) is slidably provided inside the impact box (6). An elastic element (8) abuts against the upper part of the impact plate (7). The elastic element (8) abuts against the pressing plate (4). A push rod (9) is provided on the upper surface of the palm support plate (1). The bottom of the impact box (6) has a through groove (10) through which the push rod (9) passes. The impact plate (7) has a through hole (11) through which the push rod (9) passes. When the pressing plate (4) is pressed down, the push rod (9) pushes the impact plate (7) to squeeze the elastic element (8). When the pressing plate (4) is in contact with the palm support plate (1), the push rod (9) passes through the through hole (11) through the impact plate (7), and the elastic element (8) releases the impact plate (7) to impact the palm support plate (1) downward. The root of the abutment (9) is provided with a bending groove (12), and the palm support plate (1) is provided with an inclined rod (13). The bottom end of the inclined rod (13) abuts against the rod wall of the abutment (9). A positioning groove (14) is provided at the edge of the through hole (11), and the top of the abutment (9) is engaged in the positioning groove (14).

2. The cardiopulmonary resuscitation compression hand fixation device according to claim 1, characterized in that: One end of the support shaft (3) is connected to a counter (15).

3. The cardiopulmonary resuscitation compression hand fixation device according to claim 1, characterized in that: The pressing plate (4) is provided with a finger isolation structure (16) for separating the five fingers.

4. The cardiopulmonary resuscitation compression hand fixation device according to claim 1, characterized in that: The wrist rest (5) is equipped with a wrist adjuster (17).

5. The cardiopulmonary resuscitation compression hand fixation device according to claim 1, characterized in that: The pressing plate (4) is provided with a palm root recess groove (18).

6. The cardiopulmonary resuscitation compression hand fixation device according to claim 1, characterized in that: The edge of the palm support plate (1) is provided with a symmetrical curved part (19), and a strap opening (20) is provided on the curved part (19).

7. The cardiopulmonary resuscitation compression hand fixation device according to claim 1, characterized in that: The bottom of the palm rest (1) is provided with anti-slip particles (21).

8. The cardiopulmonary resuscitation compression hand fixation device according to claim 1, characterized in that: The bottom of the palm support plate (1) is provided with a chest seam positioning strip (22).

9. The cardiopulmonary resuscitation compression hand fixation device according to claim 1, characterized in that: The upper end of the impact box (6) is provided with a protruding edge (23), and the lower part of the pressing plate (4) is provided with a retaining edge (24), and the protruding edge (23) is engaged in the retaining edge (24).

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