CPR assist device

Abstract

The present invention relates to the field of cardiopulmonary resuscitation (CPR) devices, specifically a novel ergonomic manual CPR assist device (100) This device is designed to aid the general public in providing effective chest compressions during cardiac arrest emergencies. It includes features for audio-visual feedback and emergency help activation to ensure high-quality resuscitation efforts and timely intervention by healthcare providers. The invention aims to enhance the efficiency and effectiveness of bystander CPR, particularly in settings with limited access to automated devices and professional medical assistance.

Description

[0001] TITLE: CPR ASSIST DEVIC]

[0002] CROSS REFERENCE

[0003] The patent application claims the priority date benefit of Indian Patent Application no. 202431058254 filed on Jul 31 , 2024.

[0004] FIELD OF INVENTION

[0005] The present invention relates to the field of cardiopulmonary resuscitation (CPR) devices, specifically a novel ergonomic manual CPR assist device. This device is designed to aid the general public in providing effective chest compressions during cardiac arrest emergencies. It includes features for audio-visual feedback and emergency help activation to ensure high-quality resuscitation efforts and timely intervention by healthcare providers. The invention aims to enhance the efficiency and effectiveness of bystander CPR particularly in settings with limited access to automated devices and professional medical assistance.

[0006] BACKGROUND OF THE INVENTION

[0007] Cardiac arrest is a life-threatening condition requiring immediate intervention to restore blood circulation and oxygen delivery to the brain and other vital organs. Cardiopulmonary resuscitation (CPR) is the primary life-saving technique employed during cardiac arrest, involving a sequence of chest compressions and ventilations. Typically, the procedure includes 30 compressions followed by 2 breaths, which can be both complex and physically exhausting for the rescuer. The necessity for continuous, high-quality chest compressions is underscored by guidelines from the American Heart Association (AHA), which highlight the importance of early initiation, correct compression rate (100 per minute) and depth (of at least 5cm or 2 inches), complete chest recoil, and minimal intermptions.

[0008] Despite the critical nature of CPR, several challenges persist, especially in out-of-hospital cardiac arrest (OHCA) scenarios, and after 6 minutes of cardiac arrest there is irreversible damage to brain tissues. Such instances of outside hospital cardiac arrests comprise of more than 85% of cardiac arrest number ers cannot be monitored to know the quality of chest compression proviueu io ine victims, in many regions, including India, the awareness and training levels for bystander CPR are significantly low, resulting in poor survival rates. Factors contributing to this include high population density, inadequate emergency medical services (EMS), crowded roads, and a general lack of awareness about recognizing and responding to cardiac arrest. Moreover, the reluctance to perform mouth- to-mouth ventilation, has emphasized the need for compression-only life support methods.

[0009] Existing CPR devices are often automated, bulky, expensive, and not easily accessible for point-of-care use. These devices also fail to provide real-time feedback on the quality of chest compressions, which is crucial for effective resuscitation. Manual chest compressions, although preferred, can lead to rescuer fatigue, compromising the quality of CPR provided.

[0010] Some of the patent literature reviewed during the search depicted that:

[0011] U.S. Pat. No. 6066106 discloses a system for performing chest compression for Cardiopulmonary Resuscitation. The system includes a motor and gearbox including a system of clutches and brakes which allow for controlling and limiting the movement of the compressing mechanism and includes a control system for controlling the operation and interaction of the various components to provide for optimal automatic operation of the system.

[0012] U.S. Patent Application Publication No. 2007 / 0276300 discloses a device using ultrasound transmission to calculate compression depth. Such an ultrasound signal is highly dependent on ambient conditions such as air temperature. If air temperature fluctuates, so does the speed of sound, which may result in inaccuracies. Also, if the plane of the chest compression is initially unknown, the calculation of compression depth may be significantly compromised. Time-of-flight ultrasonic distance interpolation cannot resolve the position of the receiver in six degrees of freedom and the determination of the downward translational movement if the patient, receiver or transmitter is not level may be difficult. Even if ultrasonic triangulation is employed, latency may be significant, resolution may be low and multiple transmitters and receivers in different locations may be required. U.S. Pat. No. 6,351,671 discloses the chest impedance of a patient as well as the force of active chest compressions, nowever, this technology requires defibrillator pads to be placed across the chest of the patient and is, consequently, relatively time consuming to activate. The commercially available device, Q-CPR® by Phillips Medical, must be attached to an expensive hospital -grade defibrillator making it expensive, heavy and inaccessible to the lay user. Furthermore, this technology relies heavily on data collected from an accelerometer. Many current technologies are based around accelerometer technology.

[0013] U.S. Pat. No. 4,570,615 & 5,257,619 also disclose piston-based chest compression devices, which were found to be not very successful for outside hospital cardiac arrest successful.

[0014] The present invention addresses these issues by introducing an ergonomic, manual CPR assist device that facilitates high-quality chest compressions. The device includes integrated audio-visual feedback mechanisms to guide the rescuer in maintaining the correct compression rate and depth. Additionally, it features an emergency help activation system to alert medical authorities promptly, ensuring timely professional intervention. This innovation aims to empower bystanders with a reliable, easy-to-use tool, thereby improving the chances of survival for cardiac arrest victims, particularly in resource- constrained settings.

[0015] OBJECT OF THE INVENTION

[0016] The primary object of the invention is to provide a novel ergonomic manual CPR assist device that addresses the limitations of existing CPR methods and devices.

[0017] Yet another objective of the invention is to facilitate high-quality chest compressions, this will ensure that bystanders can deliver effective chest compressions by providing real-time audio-visual feedback on the correct compression rate depth and recoil, as per guidelines set by the American Heart Association (AHA).

[0018] Another objective is to reduce rescuer fatigue by alleviate the physical strain and fatigue experienced by rescuers during manual chest compressions, thereby maintaining the quality and consistency of CPR over extended periods. A further objective is to enhance oility by offering a lightweight, portable, and easy-to-use device tnai can oe uepioyeu quickly in out-of-hospital cardiac arrest scenarios, making it suitable for use by the general public, including those with minimal training.

[0019] One objective is also to incorporate emergency help activation, this will integrate a system to alert emergency medical services (EMS) promptly, ensuring timely professional medical intervention and improving the chances of survival for the cardiac arrest victim.

[0020] A further objective is to promote compression-only life support, by supporting the growing emphasis on compression-only CPR, especially in light of concerns related to mouth-to- mouth resuscitation post- pandemic, thus encouraging more bystanders to perform CPR without hesitation.

[0021] The present invention also aims at improving the survival rates by contributing to reducing the mortality rate associated with out-of-hospital cardiac arrest (OHCA) by increasing the incidence and effectiveness of bystander CPR, particularly in regions with low awareness and inadequate emergency medical infrastructure.

[0022] By achieving these objectives, the invention aims to bridge the gap between the occurrence of cardiac arrest and the arrival of professional medical help, ultimately enhancing the overall chain of survival and improving patient outcomes.

[0023] SUMMARY OF THE INVENTION

[0024] The present invention relates to an advanced manual CPR assist device designed to enhance the quality of cardiopulmonary resuscitation (CPR) provided by bystanders in emergency situations. This ergonomic device features a combination of photosensitive sensors and ultrasonic sensors strategically positioned across its body to measure the rate, depth, and adequacy of chest compressions and chest recoil during CPR.

[0025] In one aspect the present invention provide a CPR device equipped with photosensitive sensors and ultrasonic sensors to accurately calculate the rate of chest compressions, depth of compressions, and the adequacy of chest recoil. These sensors are activated by a source of visible light, ensuring precise measurements. In yet another aspect the present in ice includes a visible light source and an ultrasonic sound generating unit locaieu arounu me arm, head, neck, or foot of the victim. The light source is height adjustable to accommodate the body span of different cardiac arrest victims. The said light source projecting unit is separate from the CPR assist device to ensure accuracy and avoid errors from accelerometer-detected motion during compressions as seen in case of conventional CPR devices. Static light source activation of photosensors measures chest compression depth and rate precisely. Movements less than 5 cm indicate insufficient recoil. In one related aspect any tilting in Z axis is also perceived as vertical movement due to spatial error.

[0026] In a further aspect the CPR device according to the present invention provides real-time audio-visual feedback on the quality of resuscitation. It computes data from the sensors to monitor and guide the rescuer in maintaining the recommended compression rate (100 per minute), compression depth (at least 5 cm), and complete chest recoil, as per the American Heart Association guidelines.

[0027] In one aspect the device according to the present invention is enabled for emergency communication, and is stored on a specialized platform covered by transparent, hemicylindrical covers. The platform is activated when the device is removed, enabling multiple communication methods (SIM card, Wi-Fi, LORA). It can send emergency voice calls and text messages to the device owner, the nearest available ambulance, hospital, and drone surveillance docking station. Additionally, a local alarm with audio-visual signals can be triggered for SOS help.

[0028] In another aspect the said CPR assist device features a > 8 inches handle designed ergonomically to engage the triceps muscles and prevent arm convergence during compressions. The base, mimicking a responder's palm, includes about 4 inches diameter silicon cup to ensure better abutting to the victim’s chest wall, preventing abrasions.

[0029] The device's body contains photosensors to detect the movement parameters, with a demarcated band indicating the starting point of light beam projection for accuracy.

[0030] In another aspect the said device rests on a base plate with a cylindrical, transparent cover for easy visualization of internal contents. A pull button on the platform allows the upper cover to open petal-like, facilitating easy removal of the device. The central dashboard or server o: tn collects data from all installed response units, ambulances, hospitals, ana anocaiea arones.

[0031] In some aspects of the present invention the disclosed device is suitable for resuscitating cardiac arrest victims from various causes such as heart attack, electrocution, smoke inhalation, food or drug allergy, and blood transfusion. It is also useful in hospital code blue responses, outside hospital cardiac arrests, and during procedures like cardiac rhythm correction therapy and angiography. The innovative CPR assist device aims to significantly improve the quality and effectiveness of bystander CPR, ensuring timely and appropriate intervention in cardiac arrest emergencies, ultimately enhancing survival rates.

[0032] DRAWINGS OF THE INVENTION

[0033] The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes references to the annexed drawings wherein:

[0034] Figure. 1: Shows a diagrammatic view of the CPR assist device (100) - perspective view.

[0035] Figure. 2: Shows a top profile of the CPR assist device (100).

[0036] Figure. 3(a): Illustrates a side profile view of the CPR assist device.

[0037] Figure. 3(b): Illustrates a front side profile of the CPR assist device.

[0038] Figure. 4: Shows a base profile or dorsal view of the CPR assist device (100).

[0039] Figure. 5(a): Shows a back side view of light source reference stand (300).

[0040] Figure. 5(b): Shows atop view of light source reference stand (300).

[0041] Figure. 5(c): Shows a side view of light source reference stand (300).

[0042] Figure. 6: Shows the complete CPR assist device (100) in its resting position on the base platform (200), along with the light source reference stand (300).

[0043] Figure. 7: Shows a PCB block diagram of circuitry and connection or mechanism interface of the QCPR chest compression device and QCPR light source.

[0044] Figure. 8: Depicts a state detection algorithm for the QCPR chest compression device and the interaction between various feedback sensors. Figure. 9: Depicts a audio feedb )CPR chest compression device and the interaction between device ano reeooacK sensors.

[0045] DETAILED DESCRIPTION OF THE INVENTION

[0046] The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. This description is not intended to be a detailed catalogue of all the different ways in which the invention may be implemented, or all the features that may be added to the instant invention. For example, features illustrated with respect to one embodiment may be incorporated into other embodiments, and features illustrated with respect to a particular embodiment may be deleted from that embodiment. In addition, numerous variations and additions to the various embodiments suggested herein will be apparent to those skilled in the art in light of the instant disclosure, which do not depart from the scope of the instant invention. Hence, the following descriptions are intended to illustrate some particular embodiments of the invention, and not to exhaustively specify all permutations, combinations, and variations thereof.

[0047] The terms “for example” and “such as,” and grammatical equivalences thereof, the phrase “and without limitation” is understood to follow unless explicitly stated otherwise.

[0048] As used herein, the term “about” is meant to account for variations due to any experimental errors which may be commonly accepted in the field for a numeric value, for example such a variation can be considered as a ±10% of the said numeric value. All measurements reported herein are understood to be modified by the term “about,” whether or not the term is explicitly used, unless explicitly stated otherwise. Further for the purposes of the present invention, ranges may be expressed as from “about” one particular value to “about” another particular value. When such a range is expressed, another embodiment includes from the one particular value to the other particular value. The recitation of numerical ranges by endpoints includes all the numeric values subsumed within that range.

[0049] As used herein, the singular forms “a”, “an”, and “the” include plural referents unless the context clearly dictates otherwise. Unless otherwise defined, all tec rms used herein have the same meaning as commonly understood oy one or orumary skill in the art to which this disclosure belongs. Methods and materials are described herein for use in the present disclosure; other suitable methods and materials known in the art can also be used. The materials, methods and examples are illustrative only and not intended to be limiting by any means. All publications, patent applications, patents and other references mentioned herein are incorporated by reference in their entirety. In case of a conflict, the present specification, including definitions, will control.

[0050] Throughout this specification, unless the context requires otherwise the word “comprise”, and variations such as “comprises” and “comprising”, will be understood to imply the inclusion of a stated element or step or group of elements or steps but not the exclusion of any other element or step or group of elements or steps.

[0051] The term “including” is used to mean “including but not limited to”, “including” and “including but not limited to” are used interchangeably.

[0052] The term “treatment” or “treating” or “therapy” are used interchangeably to mean effect of the device in alleviating the disease or condition.

[0053] As used herein, the phrases “CPR” or “Cardiopulmonary Resuscitation” or “QCPR” or “Quality Cardiopulmonary Resuscitation” is used interchangeably and refers to an emergency lifesaving procedure performed when the heart stops beating. Resuscitation of cardiac arrest victim of any origin like heart attack, electrocution, fire or chemical smoke inhalation, food or drug allergy, blood transfusion etc. Hospital code blue response, outside hospital cardiac arrest and execution of basic life support. During correction for cardiac rhythm correction therapy, angiography or stenting. CPR is a critical step in the AHA’s Chain of Survival.

[0054] The term “Chain of Survival provides” a useful metaphor for the elements of the ECC systems concept. The 6 links in the adult out-of-hospital Chain of Survival are:

[0055] - Recognition of cardiac arrest and activation of the emergency response system (calling 9-1-1 in the US).

[0056] - Early CPR with an emphasis on chest compressions

[0057] - Rapid defibrillation - Advanced resuscitation by Em es and other healthcare providers

[0058] - Post-cardiac arrest care

[0059] - Recovery (including additional treatment, observation, rehabilitation, and psychological support)

[0060] A strong Chain of Survival can improve chances of survival and recovery for victims of cardiac arrest.

[0061] Also in emeigency situations, high-quality CPR or “QCPR” plays an important role in chances of survival and proper recovery, and it should be performed by anyone - including bystanders. There are five critical components:

[0062] - Push hard Push fast,

[0063] - Provide compressions of adequate rate and depth,

[0064] - Allowing complete chest Recoil between successive chest compressions,

[0065] - Minimize interruptions in chest compressions

[0066] - Avoid excessive ventilation.

[0067] The invention described herein fills a critical gap in the current approach to out-of-hospital cardiac arrest management. By providing an accessible, manual CPR assist device with built-in guidance and alert systems, it enhances the quality of bystander CPR and bridges the time gap until professional medical help arrives. This invention not only addresses the practical challenges faced during resuscitation but also aligns with global efforts to improve survival rates from sudden cardiac arrest.

[0068] The present invention discloses a manual CPR assist device designed to enhance the quality of cardiopulmonary resuscitation (CPR) which can also be provided by bystanders in emergency situations. The device features an eigonomic design, advanced sensor integration, and real-time feedback mechanisms to ensure high-quality chest compressions. The following detailed description provides an in-depth overview of the key components and functionalities of the device, as visible from different views.

[0069] In one embodiment, the CPR assist device comprises an eigonomically designed handle, a set of photosensitive and ultrasonic sensors, a real-time feedback system, and an emergency communication system. The device is configured to provide audio-visual feedback on the quality of chest c( hat the rate, depth, and adequacy of chest recoil are maintained accorumg io recommenueu guidelines.

[0070] In some embodiments the CPR assist device disclosed herein comprises an 8.5-inch bean shaped handle on both side of the upper potion of the device for comfortable grip and effective force application, photosensitive sensors and ultrasonic sensors for accurate measurement of chest compression parameters, means for real-time audio-visual feedback system comprising feedback LEDs and feedback speaker and an emergency communication system activated upon removal of the device from its platform. In one aspect the device is held by hand gripping only on either side of the perimeter of upper body structure of the device.

[0071] In one embodiment the CPR assist device disclosed herein features integrated photosensitive sensors and ultrasonic sensors positioned across its body. These sensors are activated by a source of visible light, enabling the device to accurately calculate the rate, depth, and adequacy of chest compressions and recoil.

[0072] In one related aspect of the above embodiment, the device is integrated with sensors which enable the device for measuring the depth of chest compressions by detecting the movement of light across a designated sensor area.

[0073] In yet another related aspect of the above embodiment, the device uses has ultrasonic sensors, which provide additional accuracy in measuring the rate and depth of compressions, ensuring high-quality CPR.

[0074] In another embodiment according to the present invention the said device includes a visible light source and an ultrasonic sound generating unit located around the arm, head, neck, or foot of the victim. This light source is adjustable in height to accommodate the body span of different cardiac arrest victims, ensuring accurate sensor activation and measurement.

[0075] In one related aspect of the above embodiment the device also comprises a visible light source that projects light to activate photosensitive sensors.

[0076] In another related aspect of the above embodiment the device is featured with an adjustable Height that allows the light source to be positioned correctly for various victim body sizes. In some embodiments according ion the said CPR assist device provides real-time audio-visual feeuoacK io guiue me rescuer in maintaining the correct compression rate and depth. This feedback system helps ensure the quality of CPR as per the American Heart Association guidelines.

[0077] In one aspect of the above embodiment the device is integrated with feedback speakers, feedback LEDs and metronome. In one related aspect the said feedback speaker delivers auditory cues on the compression rate and depth. In another related aspect the said feedback LEDs display visual indicators for real-time monitoring and adjustment of CPR technique. In one aspect the disclosed device provides a regular beat to guide the rescuer in maintaining the recommended compression rate of 100 compressions per minute.

[0078] In yet another embodiment the CPR device as disclosed herein is enabled to activate emergency communication, wherein the said CPR assist device is stored on a specialized platform with transparent, hemicylindrical covers. The platform is activated when the device is removed, enabling multiple communication methods to send emergency alerts.

[0079] In one aspect of the above embodiment the communication methods comprise SIM card, Wi-Fi, and LORA to send voice calls and text messages to the one or more device owner, nearest available ambulance, hospital, and drone surveillance station.

[0080] In yet another aspect of the above embodiment the communication method further includes a local alarm using an audio-visual signal triggered for SOS help.

[0081] In one embodiment according to the present invention the disclosed CPR device is designed for usability in a user-friendly design to facilitate effective use in emergency situations. The handle, body, and base components are designed to ensure comfort, stability, and precise force application.

[0082] In one aspect of the above embodiment the said device is having an ergonomic handle that measures 8.5 inches, designed to engage the triceps muscles and prevent arm convergence during compressions.

[0083] In yet another aspect the said device is having a silicon cap located at the base of the device, it fits snugly against the victim’s chest wall / breast bone to prevent abrasion and ensure effective compression. In a further aspect the said devic< ;r that houses the power supply, ensuring the device remains portable ana operational.

[0084] In some embodiments according to the present invention, the said CPR assist device rests on a base platform with specific arrangement for the device to rest. The platform allows stability to the device during resting position and also allows for easy access to the device. The said base platform activates a communication system when the device is removed. This also alerts the owner of the device, and necessary emergency contact along with nearest ambulatory services for quick response during emergency.

[0085] In one embodiment according to the present invention the said CPR assist device is suitable for resuscitating cardiac arrest victims of various origins, including heart attacks, electrocution, smoke inhalation, food or drug allergies, and blood transfusion reactions. It is also useful in hospital code blue responses, outside hospital cardiac arrests, and during procedures like cardiac rhythm correction therapy and angiography. The device provides for versatile use and is applicable in multiple emeigency scenarios to provide effective CPR and improve survival rates.

[0086] In one aspect of the above embodiment the present invention also provides a method of treating a patient requiring CPR, wherein the method comprises of using the CPR assist device by following certain steps including positioning of the device, activating the device, performing guided manual chest compressions using the device un till emergency medical assistance arrives or the victim regains consciousness.

[0087] In yet another aspect of the above embodiment the present invention provides a method of treatment for providing cardiopulmonary resuscitation (CPR) to a cardiac arrest victim using the CPR assist system including positioning of the device, activating the device, performing guided manual chest compressions using the device un till emergency medical assistance arrives or the victim regains consciousness and monitoring the nearby emergency alerts and location data sent by the network sensor to predetermined contacts, including nearby emergency services.

[0088] Detailed Description of Drawings

[0089] Figure 1: Shows a diagrammatic view of the manual CPR assist device (100), with a perspective view of the device showing the components of the device at the centre or the oval shaped top with bean shaped edges, the figure depicts a view wherein the device (100) is shown wnnoui a resting case, and is of the operation modes of the device.

[0090] Figure 2: Depicts the top profile of the manual CPR assist device (100), providing a detailed view of its key components and features essential for user interaction and feedback during cardiopulmonary resuscitation (CPR) procedures.

[0091] The device (100) comprises of:

[0092] Handle (102): The handle (102) is ergonomically designed as 2 bean shaped portions with hollow interior area and intersection area of the two handles in the central axis with all the indicators and switches of the device, this arrangement of the top profile of the device with the design of handle (102) helps to facilitate comfortable grip and effective force application during chest compressions by both the hands. Its prominent placement and ergonomic design ensure ease of use and manoeuvrability for the rescuer. The exemplary device has a handle of 8.5 inches diameter, and the base of the device on which the handle is attached is of nearly 4 inches in diameter. This design of the top profile and handle reduces steep conical direction force and make it more parallel from shoulder to device holding and the angulation of forearm bones with hand bones is also prevented, which improves the efficiency of chest compression and reduces fatigue.

[0093] Power Button (101): Positioned for convenient access at the middle portion of the top profile i.e. in between the two bean shaped handles (102), the power button (101) allows the user to turn the device on and off, initiating or terminating its operation as needed by disconnecting from the power source.

[0094] Reset Port (103): The reset port (103) is also present at the middle portion of the top profile i.e. in between the two handles (102), that enables the user to reset the device settings to default, providing a means to troubleshoot or recalibrate the device as necessary.

[0095] Feedback Speaker (104): The feedback speaker (104) is also present at the middle portion of top profile in between the two handles (102), it delivers auditory cues and prompts to the rescuer, providing real-time feedback on the quality of chest compressions and guiding them in maintaining the correct technique. For example, in practical scenario inal CPR assist device can guide a rescuer to save the victim without any specianseu training or facility:

[0096] 1. When the compression is too fast, the feedback speaker (104) prompts “Go slower”, thereby the user reduces the compression speed to match with the correct CPR required for the patient.

[0097] 2. When the compression is too slow, the feedback speaker (104) prompts “Go faster”, thereby the user increases the compression speed to match with the correct CPR required for the patient.

[0098] 3. When the compression is not proper i.e. when there is no recoil or inadequate, the feedback speaker (104) prompts “Release more”, thereby the user is guided to release the handle more upward to match with the correct CPR required for the patient.

[0099] 4. When the compression is not proper i.e. when the use is compressing 5 cm or less, the feedback speaker (104) prompts “Press more”, thereby the user is guided to press the handle more down ward to match with the correct CPR required for the patient.

[0100] 5. When the compression is proper i.e. when there is good CPR achieved by the person using the device on the patient, the feedback speaker (104) prompts “Good Job”, thereby the user is guided to continue with the CPR.

[0101] Metronome (105): The metronome (105) is also present at the middle portion of top profile in between the two handles (102), it emits a regular beat to assist the rescuer in maintaining the recommended compression rate of 100 compressions per minute, ensuring consistency and effectiveness in CPR delivery.

[0102] Feedback LEDs (106): The feedback LEDs (106) offer visual indicators to supplement the auditory provided by the speaker. These LEDs illuminate in different colors (Red - R, Green - G and yellow - Y from left to right in the figure) to convey specific messages to the rescuer:

[0103] Red (106R): Indicates that the compression rate is too slow, prompting the rescuer to increase their pace.

[0104] Green (106G): Signals that the compression rate is within the recommended range, indicating effective chest compressions.

[0105] Yellow (106Y): Alerts the rescuer when there is inadequate chest recoil, indicating that the chest is not fully returning to its original position between compressions. The detailed depiction of the CPR ile in Figure 2 illustrates its user- friendly design and interactive features, aimeu at guiuing rescuers and optimizing the quality of CPR delivery in emergency situations.

[0106] Figure 3(a): illustrates a side profile view of the CPR assist device (100), showcasing its structural components and functional elements essential for cardiopulmonary resuscitation (CPR) procedures. This perspective offers insights into the device's robust design and layout, its ergonomic features and sensor integration.

[0107] The handle (102) extends from the body of the device (110), providing a comfortable and secure grip for the rescuer. Its ergonomic design ensures ease of use and effective force application during chest compressions.

[0108] Power Button (101): Positioned on the top of the device, the power button (101) allows the user to control the device's operation, powering it on or off as needed. Its accessible location ensures convenient access during emergency situations.

[0109] Body of CPR Assist Device (110): The main body of the CPR assist device (110) houses the core components and electronic units necessary for CPR assistance. Its sturdy construction ensures durability and reliability in demanding emergency scenarios.

[0110] Photo Diodes Placement Area (107): The photo diodes placement area (107) is strategically located on the body of the device to accommodate the photosensitive sensors. These sensors detect the rate and depth of chest compressions, providing vital feedback to the rescuer in real time.

[0111] Battery Container (108): The battery container (108) securely holds the power supply for the device, ensuring uninterrupted operation during CPR procedures. Its placement within the device's body optimizes weight distribution and stability.

[0112] Silicon Cap Area (109): Positioned at the base of the device, the silicon cap area (109) features a silicone cap designed to fit snugly against the victim's chest wall. This ensures proper alignment and contact during chest compressions, minimizing discomfort and maximizing effectiveness. Further the silicon cap is biocompatible, and also prevents any accidental slipping of the device from patient body and ensure proper and user-friendly chest compression. The depiction of the CPR assist i Figure 3a highlights its robust construction, eigonomic design, ana sensor integration, ail aimed at optimizing the quality of CPR delivery and enhancing survival rates in cardiac arrest emergencies.

[0113] Figure 3b: presents the front side profile of the CPR assist device (100), offering a comprehensive view of its key components and functionalities crucial for effective cardiopulmonary resuscitation (CPR). This perspective highlights the device's user interface, feedback mechanisms, and sensor integration, all aimed at facilitating optimal CPR delivery in emergency situations.

[0114] Metronome (105): The metronome (105) is prominently displayed on the front side of the device (100), emitting a regular beat to guide the rescuer in maintaining the recommended compression rate of 100 compressions per minute. Its audible cues ensure consistency and effectiveness in CPR administration.

[0115] Feedback LEDs (106): The feedback LEDs (106) are strategically positioned to provide visual indicators of the compression quality to the rescuer. These LEDs illuminate in different colors to convey specific messages viz., Red (R): Indicates that the compression rate is too slow, prompting the rescuer to increase their pace, Green (G): Signals that the compression rate is within the recommended range, indicating effective chest compressions, and Yellow (Y): Alerts the rescuer when there is inadequate chest recoil, indicating that the chest is not fully returning to its original position between compressions .

[0116] Handle (102): The handle (102) serves as the ergonomic grip for the rescuer, facilitating comfortable and secure handling during CPR procedures. Its design ensures ease of use and effective force application, enhancing user confidence and performance.

[0117] Body of CPR Assist Device (110): The main body of the CPR assist device (110) is a cylindrical / tubular structure housing the internal components and electronic units essential for CPR assistance. Its robust construction and the materials used ensures durability and reliability in demanding emergency scenarios.

[0118] Photo Diodes Placement Groove (107): The photo diodes placement groove (107) accommodates the photosensitive sensors responsible for detecting the rate and depth of chest compressions. This precise sensor placement optimizes sensor accuracy and ensures reliable feedback to the rescuer. It also prevents the sensors from any external damage. Color Band (Initiation Point) (111 serves as the initiation point for chest compressions, providing a visual rererence ror the rescuer to begin CPR. Its demarcation aids in proper positioning and alignment of the device on the victim's chest, and the corresponding light source height.

[0119] Silicon Cap Area (109): The silicon cap area (109) features a biocompatible silicone cup designed to fit securely against the victim's chest wall. This neutralizes ups and downs on uneven surfaces, ensuring consistent and effective chest compressions even in challenging environments.

[0120] The front side profile depicted in Figure 3b showcases the intuitive design and advanced features of the CPR assist device (100), empowering rescuers to deliver high-quality CPR and improve outcomes for cardiac arrest victims.

[0121] Figure 4 depicts the base profile, or dorsal view, of the CPR assist device (100). This perspective reveals the underside components and structural features designed to ensure stability, secure attachment, and effective operation during cardiopulmonary resuscitation (CPR) procedures.

[0122] Handle (102): The handle (102) is visible from the base profile, demonstrating its integral role in the overall design of the device. Its ergonomic two bean shaped lobes with hollow interior segment allows for a comfortable grip and effective force application during CPR.

[0123] Fixing Screws (112): The fixing screws (112) are strategically placed to secure various components of the device, ensuring its structural integrity and reliability. These screws are essential for maintaining the assembly of the device and preventing any unintended disassembly during use.

[0124] Gripping Ridge (113): The gripping ridge (113) encircles the handle (102) of the device, providing additional stability and grip when the device is placed on the victim's chest and is being compressed by the user. This feature ensures that the device is correct gripped during the chest compressions, minimizing slippage during chest compression and enhancing the effectiveness of CPR.

[0125] Base Portion for Fixing Silicon Cap (115): The base portion for fixing the silicon cap (115) is designed to securely hold the silicon cap in place. This ensures that the biocompatible silicon cap maintains consistent contact with the victim's chest wall, allowing for effective chest compressions even on uneve s accidental displacement during the course of CPR.

[0126] Screw Fix (114): The screw fix (114) components are additional fastening points that contribute to the overall stability and assembly of the device. These screws help to ensure that all parts of the device are securely fixed and properly aligned.

[0127] The base profile view in Figure 4 highlights the careful engineering and structural considerations of the CPR assist device, emphasizing its stability, secure attachment features, and ergonomic design. These elements work together to ensure that the device functions effectively and reliably during CPR, providing critical support to rescuers in emergency situations.

[0128] Figures 5(a), 5(b), and 5(c) illustrate various views of the light source reference stand or light projecting unit (300) for the CPR assist device (100). This stand is a critical component designed to provide accurate lighting for the photosensitive sensors present at the photodiode area (107) on the CPR assist device (100), ensuring proper functionality and effective chest compressions. The light projecting unit (300) is separated than the CPR assist device for better accuracy and to avoid the error due to relative motion perceived by accelerometer as it also moves with victim’s chest during compression and relaxation in case of conventional CPR devices. In convention CPR devices any rapid change of reference point gives erroneous input data to accelerometer. Any tilting in Z axis is also perceived as vertical movement due to spatial error. Such errors are avoided by the construction of presently disclosed device.

[0129] In the present invention the number of photosensors activated due to static light source (116) and the moving CPR assist device (100) gives correct measurement of distance travelled. The rate of movement is also calculated. The distance less than 5 centimetres will result in no recoil.

[0130] The light projecting unit (300) is designed to be separate from the CPR assist device, ensuring enhanced accuracy in measurements. This separation is crucial to avoid errors. Which usually arise from the relative motion detected by the accelerometer in conventional devices, which moves in sync with the victim's chest during compressions and relaxations. When the reference point changes rapidly, it can lead to erroneous input data to the accelerometer, such errors are avoided in the present device by avoiding use of FSR and Accelerometer. Additionally, any ght be mistakenly interpreted as vertical movement due to spatiai error m conventional CPR devices which is also overcome in the present device without using any accelerometer or FSR.

[0131] The static light source, combined with the moving CPR assist device, allows for precise measurement of the distance travelled during chest compressions. The number of photosensors activated by the static light source provides accurate data on the depth and rate of chest compressions. If the distance travelled is less than 5 centimetres, it indicates insufficient chest recoil, ensuring that only effective compressions are counted and corrected as needed.

[0132] Figure 5(a): Back Side View of Light Source Reference Stand shows:

[0133] Light Source (116): Positioned at the top of the reference stand, the light source (116) provides the necessary illumination for activating the photosensitive sensors on the CPR assist device. This ensures accurate measurement of chest compression depth and rate.

[0134] Battery Unit (117): The battery unit (117) powers the light source, ensuring consistent and reliable illumination during use. It is securely housed within the reference stand to maintain stability and functionality.

[0135] Swivel (118): The swivel (118) allows for height adjustment of the light source, accommodating different body configurations of the patient. This feature ensures that the light source can be positioned accurately for optimal sensor activation.

[0136] Adjustable Shaft of Light Source (119): The adjustable shaft (119) enables vertical movement of the light source (116), allowing it to be raised or lowered based on the patient's body frame. This flexibility ensures that the light source is always correctly positioned.

[0137] Base Plate of Light Source (120): The base plate (120) provides a stable foundation for the reference stand, ensuring that it remains securely in place during use. Its design supports the entire structure and maintains balance.

[0138] Figure 5(b): Top View of Light Source Reference Stand (300) shows:

[0139] Power Switch (121): The power switch (121) is accessible from the top of the reference stand (300), allowing the user to easily turn the light source on or off. This switch ensures convenient control of the device's illumination. Light Source (116): From the top \ 16) is centrally located to provide even and directed illumination to me vr assist uevice Uoo).

[0140] Battery Unit (117): The battery unit (117) is visible from the top, showing its placement and integration within the stand.

[0141] Adjustable Shaft of Light Source (119): The top view highlights the adjustable shaft (119), showing its alignment and mechanism for vertical adjustment.

[0142] Base Plate of Light Source (120): The base plate (120) is outlined, demonstrating its circular design which supports the entire reference stand.

[0143] Figure 5(c): Side View of Light Source Reference Stand (300), shows:

[0144] Power Switch (121): The side view provides a profile of the power switch (121), showing its placement and ease of access for the user.

[0145] Light Source (116): The light source (116) is shown in profile, indicating its position relative to the rest of the stand.

[0146] Battery Unit (117): The side view also highlights the battery unit (117), emphasizing its secure attachment and integration within the stand.

[0147] Base Plate of Light Source (120): The side view shows the thickness and stability of the base plate (120), ensuring that the reference stand remains firmly in place during operation.

[0148] These figures 5 (a-c) provide comprehensive views of the light source reference stand (300) from different angles, illustrating its components and their functions. The light source (116), powered by the battery unit (117) and controlled by a power switch (121), is adjustable both in height and position to accommodate various patient body frames. The base plate (120) ensures stability, making the stand a crucial element in the proper functioning of the CPR assist device (100).

[0149] Figure 6: depicts the complete CPR assist device (100) in its resting position on the base platform (200), along with the light source reference stand (300). This configuration ensures the device is readily accessible and charged, while also providing necessary connectivity and status indicators.

[0150] Alert Speaker (125): The alert speaker (125) is prominently positioned to emit an audible alarm when the CPR assist device (100) is moved from its resting position or groove. This alert mechanism ensures immedi ipts the user to begin CPR and activate the device's emergency communication system. This feature ensures immediate audio notification, alerting users and nearby responders to potential use or tampering.

[0151] Charging Status Indicators - Green (122 G) and Red (122 R): The two charging status indicators are visible on the device as:

[0152] Green Indicator (122G): The green chaiging status indicator (122G) illuminates to signify that the device (100) is fully charged and ready for use.

[0153] Red Indicator (122R): The red charging status indicator (122R) lights up to indicate that the device (100) is currently charging or needs to be charged.

[0154] Network Sensor (123): The network sensor (123) is equipped with dual SIM capabilities, enabling robust and reliable communication through multiple networks. This ensures that the device can send emergency alerts to owner and nearby ambulatory services including hospital and maintain connectivity even if one network is unavailable. It also provides realtime updates and location information.

[0155] Groove for Receiving the CPR Assist Device (124): The groove (124) is designed to securely receive the CPR assist device (100) on the base platform (200), with or without the base plate (120). This feature ensures that the device (100) is held firmly in place, maintaining its readiness and ensuring that all components are correctly aligned for optimal performance. This groove (124) ensures that the device remains in a stable and ready position when not in use. The design allows for easy removal and replacement, facilitating quick deployment during emergencies.

[0156] In an exemplary aspect the device (100) during operation or in situations of emergency is away from the base platform (200) and / or not in the groove (124), this activates the alert speaker (125) and simultaneously reaches out through SMS and call to the owner of the device, indicating the GPS co-ordinates of the device location as well as informing the nearest ambulatory services about the situation.

[0157] In Figure 6, the integration of these components ensures that the CPR assist device (100) is always prepared for immediate use. The alert speaker (125), charging status indicators (122), network sensor (123), and secure groove (124) collectively contribute to the device's functionality, reliability, and ease c ntial tool for effective and timely CPR response.

[0158] The CPR assist device (100) as disclosed in the present invention is programmed with an algorithm to determine the compression depth and rate, wherein the algorithm continuously reads sensor data to identify the highest sensor value corresponding to the current position of the laser beam, calculates the distance travelled by the device during compressions and decompressions, and determines the compression cycles based on the measured distance and rate to give audio and visual feedback to the user necessary for appropriate operation of the device, and thereby saving life in the emergency situations. The details of the interface of the algorithm with the hardware component is depicted in the Figure 7. It depicts a PCB Block Diagram of the QCPR Chest Compression Device (100). The operation of the QCPR Chest Compression Device, focusing on its main components and their interactions as depicted in the PCB block diagram. The reference is made to figures 1-6 while explaining the block diagram.

[0159] 1. Main PCB and Power Management: o The main PCB includes a battery connector unit (108) that connects to an external battery providing power to the device. o The main switch (101) allows the user to turn the device on and off. o The power unit regulates and distributes the power to various components of the device.

[0160] 2. Microcontroller Unit: o The microcontroller unit is the central processing unit of the device, responsible for coordinating all operations. o It is connected to a programming interface, which is used for updating the firmware and configuring the device. o The amplifier unit, connected to the microcontroller, amplifies signals for audio feedback and drives the speaker (104) to provide real-time auditory guidance to the user. o An LEDs unit (106) is also connected to the microcontroller, providing visual indicators for the device’s status and operational feedback. o A photo sensor connector links the microcontroller to the sensor PCB unit present in the photo diode area (107), enabling data communication. 3. Sensor PCB Unit: o The sensor PCB unit, nouseo wiimn me v^CPR Chest Compression Device (100), contains a photo sensor array in the photodiode area (107). o This array receives the laser beam emitted by the QCPR Light Source unit (116). o The photo sensors detect the position of the laser beam, which is used to calculate the depth and rate of chest compressions.

[0161] 4. Light Source Unit: o The light source unit (116) is powered by its own battery (117), ensuring consistent operation independent of the main PCB’s power source. o It includes a switch (121) that activates the laser, projecting a beam towards the photo sensor array on the sensor PCB unit in the photodiode area (107).

[0162] 5. Operational Workflow: o Upon activation, the main switch (101) powers the device, and the microcontroller begins to process input from the photo sensor array on the sensor PCB unit in the photodiode area (107). o The laser from the light source unit (116) is directed towards the photo sensor array. As the chest compression device (100) moves, the sensors detect changes in the laser beam's position. o The microcontroller calculates the depth and rate of compressions based on the sensor data. o Real-time feedback is provided to the user through the speaker (104) (auditory signals) and LEDs (106) (visual signals). o If compressions are within the optimal range, the device plays a "GOOD JOB" sound. If adjustments are needed, it provides corresponding audio cues like "press more" “too fast” or "release more."

[0163] By following this operational embodiment, the QCPR Chest Compression Device ensures accurate measurement and guidance during CPR, enhancing the effectiveness of resuscitation efforts.

[0164] EXAMPLES: The following examples include o ncnts to illustrate the practice of this disclosure. It will be evident to inose SKIIICU m me an that the disclosure is not limited to the details of the following illustrative examples and that the present disclosure may be embodied in other specific forms without departing from the essential attributes thereof, and it is therefore desired that the present embodiments and examples be considered in all respects as illustrative and not restrictive.

[0165] Example-1: Real-time feedback assessment for compression rate

[0166] Exemplary scenario: A rescuer is performing CPR on a cardiac arrest victim using the CPR assist device (100). The rescuer starts compressions, and the processor & feedback speaker (104) continuously monitors the rate.

[0167] - Action: The rescuer compresses too fast.

[0168] - Device Response: The feedback speaker (104) prompts, "Go slower," while the red LED (106R) lights up.

[0169] Outcome: The rescuer adjusts the compression speed to match the recommended rate of 100 compressions per minute, as guided by the metronome (105).

[0170] Example 2: Assessment of device’s proper chest recoil

[0171] Exemplary scenario: During CPR, the rescuer needs to ensure complete chest recoil for effective compressions.

[0172] - Action: The rescuer performs compressions, but the chest doesn't fully recoil.

[0173] - Device Response : The device detects inadequate recoil, and the feedback speaker (104) prompts, "Release more," and the yellow LED (106Y) lights up.

[0174] Outcome : The rescuer adj usts the compression to allow the chest to return to its original position between compressions, ensuring better blood flow.

[0175] Example 3: Achieving Optimal Compression Depth

[0176] Exemplary Scenario: The rescuer needs to compress the chest to an optimal depth for effective CPR.

[0177] - Action: The rescuer is compressing the chest but not reaching the required depth.

[0178] - Device Response: The device measures the compression depth and finds it insufficient. The feedback speaker (104) prompts, "Press more," while no green light is visible.

[0179] Outcome: The rescuer increases the force of compressions until the green LED ( 106G) lights up, indicating the proper compression depth of at least 5 cm. Example 4: Maintaining consist'

[0180] Exemplary Scenario: A rescuer starts CPR and needs to maintain a consistent compression rate.

[0181] - Action: The rescuer starts compressions, initially at the correct rate. The metronome (105) emits a steady beat.

[0182] - Device Response: The rescuer maintains compressions in sync with the metronome beat, keeping the green LED (106G) consistently lit.

[0183] Outcome: The CPR is performed at the recommended rate, ensuring effective circulation.

[0184] Example 5: Automatic Emergency Alerts and Location Tracking

[0185] Exemplary Scenario: The CPR assist device (100) is moved from its base platform (200) during an emergency.

[0186] Initial Condition: The device is in its resting position on the base platform (200).

[0187] - Action: The device is lifted from the groove (124) to start CPR.

[0188] - Device Response: The alert speaker (121) activates, and the network sensor (123) sends an SMS and makes a call to the device owner and the nearest ambulance service, providing GPS coordinates of the device location.

[0189] Outcome: Immediate notification and location tracking ensure that emeigency responders are alerted and can quickly locate the victim.

[0190] Example 6: Practical example Maintaining Optimal CPR Rate and Depth

[0191] Scenario: A bystander is performing CPR on a victim who has collapsed in a public space. The CPR assist device is in use to ensure the bystander maintains the correct compression rate and depth.

[0192] Workflow:

[0193] 1. Sensor Reading and Distance Calculation: o The CPR assist device continuously reads all sensors and calculates the highest value among them to determine the current position of the laser. o Using this information, the device calculates the distance travelled by the device to measure the chest compression depth. 2. Cycle Detection: o The device determines the compression and decompression lengths. o If the compression and decompression lengths are between 5-6 cm, it categorizes the cycle as a "GOOD JOB CYCLE." o If the decompression is less than 5 cm after the first compression, it categorizes the cycle as a "RELEASE MORE CYCLE." o If both the compression and decompression lengths are less than 5 cm, it categorizes the cycle as a "PRESS MORE CYCLE." o If the device transitions from a "RELEASE MORE CYCLE" to a decompression greater than or equal to 5 cm, it categorizes the cycle as a "TRANSITION CYCLE."

[0194] 3. Rate Detection and Audio Feedback^ o If the total cycle rate is > 6 cycles in 3 seconds, the device plays a "slow down" sound. o If the cycle rate is < 5 cycles in 3 seconds, the device plays a "speed up" sound. o If the rate matches the optimal range of 100-120 cycles per minute (5-6 cycles every 3 seconds), the device evaluates the cycle types. o If 80% of the cycles are "GOOD JOB CYCLES," the device plays a "GOOD JOB" sound. o If "GOOD JOB CYCLES" are less than 4 out of 6 cycles, it evaluates the "PRESS MORE CYCLES" and "RELEASE MORE CYCLES." o If "PRESS MORE CYCLES" are greater than or equal to "RELEASE MORE CYCLES," the device plays a "press more" audio. o Otherwise, it plays a "release more" audio.

[0195] Outcome: The bystander maintains the optimal compression rate and depth, guided by the real-time feedback from the CPR assist device, increasing the chances of successful resuscitation. Detail flow is depicted in Figure - 8 & 9,

[0196] Example 7: Transition to Optimal Compression after Recoil Scenario: A healthcare professior sist device during an emergency response. Initially, the compressions are not ueep enough, and the device needs to guide the professional to correct the compression depth.

[0197] Workflow:

[0198] 1. Sensor Reading and Distance Calculation: o The device continuously reads sensor values and identifies the laser's position. o It calculates the distance travelled by the device to measure the chest compression depth.

[0199] 2. Cycle Detection: o Initially, the compressions result in a "RELEASE MORE CYCLE" due to decompression being less than 5 cm. o The device identifies the need for deeper compressions and provides feedback to the user.

[0200] 3. Rate Detection and Audio Feedback: o The device detects the cycle rate and determines if it is within the optimal range . o It continuously monitors and provides feedback on each cycle. o The device identifies a transition cycle when the decompression becomes greater than or equal to 5 cm after a "RELEASE MORE CYCLE."

[0201] 4. Corrective Guidance: o The device plays a "release more" audio to prompt the user to allow full decompression. o As the professional corrects the technique, the device transitions to identifying "GOOD JOB CYCLES." o Once 80% of the cycles are "GOOD JOB CYCLES," the device plays a "GOOD JOB" sound, confirming that the compressions are now effective.

[0202] Outcome: The healthcare professional adjusts the CPR technique based on real-time feedback, ensuring optimal chest compression depth and rate, thereby enhancing the effectiveness of the resuscitation efforts. Detail flow is depicted in Figure - 8 & 9. The CPR assist device (100) as di nvention is programmed with an algorithm as depicted in examples o ano / aoove io determine the compression depth and rate, wherein the algorithm continuously reads sensor data to identify the highest sensor value corresponding to the current position of the laser beam, calculates the distance travelled by the device during compressions and decompressions, and determines the compression cycles based on the measured distance and rate to give audio and visual feedback to the user necessary for appropriate operation of the device, and thereby saving life in the emergency situations.

[0203] The above practical examples only are for demonstration purpose, which depict that the CPR assist device's effectiveness in guiding rescuers to perform high-quality CPR, providing real-time feedback on compression rate, depth, and recoil, and ensuring prompt emergency response through automatic alerts and location tracking.

Claims

CLAIMS:

1. A manual cardiopulmonary resuscitation (CPR) assist device (100) comprising: a handle (102) ergonomically designed with two bean-shaped portions for comfortable grip and effective force application during chest compressions; wherein a power button (101) of the device is positioned at the intersection of the two handles (102); a reset port (103) adjacent to the power button for resetting device settings; a feedback speaker (104) for delivering auditory prompts to guide the rescuer during CPR; a metronome (105) for emitting a regular beat to assist in maintaining the recommended compression rate; feedback LEDs (106) in red, green, and yellow, for visual indication of compression quality; a cylindrical body (110) with a hard and rigid built housing internal electronic components and sensors; a photo diodes placement area (107), for accommodating photosensitive sensors for detecting the rate and depth of chest compressions; a battery container (108) for power supply; a silicon cap area (109) for ensuring proper alignment and contact with the victim's chest.

2. The CPR assist device (100) as claimed in claim 1, wherein the feedback speaker (104) prompts "Go slower" when compressions are too fast, "Go faster" when compressions are too slow, "Release more" when there is inadequate recoil, "Press more" when the compression depth is insufficient, and "Good Job" when the CPR is performed correctly.

3. The CPR assist device (100) as claimed in claim 1 , further comprising a color band (111) as an initiation point for chest compressions, towards the distal part of the body (110) for CPR assist device providing a visual reference for the rescuer tobegin CPR and for the aidi g and alignment of the device on the victim's chest, and the corresponding ngm source height.

4. The CPR assist device (100) as claimed in claim 1, wherein the feedback LEDs (106) indicate: red (106R) for a compression rate that is too slow, green (106G) for an optimal compression rate, depth and adequate recoil, yellow (106Y) for inadequate chest recoil.

5. The CPR assist device (100) as claimed in claim 1, wherein the silicon cap area (109) features a biocompatible silicon cap designed to prevent slipping and ensure effective chest compressions on uneven surfaces.

6. A CPR assist system comprising: the CPR assist device (100) as claimed in claim 1; a light reference stand (300) separate from the CPR assist device (100), for providing illumination to the photo diodes placement area (107) on the device; a base platform (200) with a groove (124) for receiving the CPR assist device, equipped with an alert speaker (125) and charging status indicators (122G, 122R).

7. The CPR assist system as claimed in claim 6, wherein the light source reference stand (300) includes: a light source (116) for activating the photosensitive sensors, a battery unit (117) for powering the light source, a swivel (118) and adjustable shaft (119) for height adjustment, and a base plate (120) for stability.

8. The CPR assist system as claimed in claim 6, wherein the base platform (200) includes a network sensor (123) with dual SIM capabilities for sending emergency alerts and location data.

9. The CPR assist system as claimed in claim 6, wherein the alert speaker (125) emits an audible alarm when the CPR assist device is moved from its resting position on the base platform.

10. The CPR assist system as c ein the charging status indicators(122G, 122R) provide visual reeuoacK on me uevice's charging status, with green indicating full charge and red indicating charging or low battery.

11. The CPR assist system as claimed in claim 6, wherein the network sensor (123) sends emergency alerts via SMS and calls to predetermined contacts, including the device owner and nearby ambulance services.

12. The CPR assist system as claimed in claim 6, wherein the groove (124) is designed to securely hold the CPR assist device, ensuring it remains in a stable and ready position when not in use.

13. The CPR assist system as claimed in claim 6, further comprising an alert mechanism that activates when the CPR assist device is lifted from the base platform, sending GPS coordinates of the device's location.

14. The CPR assist system as claimed in claim 6, wherein the light source reference stand (300) provides consistent and stable illumination to the photo diodes placement area (107) on the moving CPR assist device (100), ensuring precise measurement of chest compression depth and rate, and avoiding errors due to relative motion detected by the accelerometer and spatial inaccuracies.

15. The CPR assist device (100) as claimed in claim 1, wherein the device is programmed with an algorithm to determine the compression depth and rate, wherein the algorithm continuously reads sensor data to identify the highest sensor value corresponding to the current position of the laser beam, calculates the distance travelled by the device during compressions and decompressions, and determines the compression cycles based on the measured distance and rate.

16. The CPR assist device (100) as claimed in claim 15, wherein the feedback speaker (104) and LEDs (106) provide real-time auditory and visual feedback based on the compression cycles identified by the algorithm, including prompts for "Good Job" when compressions are within the optimal range, "Release more" for inadequate recoil, and "Press more" for insufficient compression depth.

17. The CPR assist system as claimed in claim 6, wherein the system includes an audio feedback algorithm that plays a "slow down" sound if the total number of cyclesexceeds 6 in 3 seconds, an?the cycle rate is less than 5 in 3 seconds, ensuring that the compression rate remains within the AHA recommended 100-120 cycles per minute.

18. The CPR assist system as claimed in claim 6, further comprising a data logging module within the microcontroller unit, wherein the module records the number of good cycles, release more cycles, press more cycles, and transition cycles, providing a detailed log of the CPR performance for post-event analysis and training purposes.

19. A method of treating a patient requiring CPR, wherein the method comprises of using the CPR assist device (100) as claimed in claim 1 by following the steps of: a) positioning the CPR assist device (100) with the silicon cap area (109) aligned on the chest of a cardiac arrest victim; b) activating the power button (101) to initiate the device's feedback system, including the feedback speaker (104) and feedback LEDs (106); c) performing manual chest compressions with the handle (102) according to the auditory and visual feedback provided by the device, ensuring optimal compression depth, rate, and adequate chest recoil based on the real-time prompts; d) adjusting the compression rate in response to metronome (105) signals, with feedback prompts for "Press more," "Release more," "Go slower," or "Go faster" to achieve correct CPR technique; and e) continuing chest compressions until emergency medical assistance arrives or the victim regains consciousness.

20. A method of treatment for providing cardiopulmonary resuscitation (CPR) to a cardiac arrest victim using the CPR assist system as claimed in claim 6, comprising the steps of: a) placing the CPR assist device (100) onto the chest of the victim to ensure proper alignment with the silicon cap area (109); b) activating the system, which includes setting the light source reference stand (300) to provide illumination for the photo diodes placement area (107) andestablishing connectivi m (200) for potential emergency alerts; c) using the feedback speaker (104) and LEDs (106) to maintain the recommended compression rate and depth, where the system’s algorithm processes real-time compression data to guide the rescuer with auditory prompts and LED color changes; d) monitoring emergency alerts and location data sent by the network sensor (123) to predetermined contacts, including nearby emergency services; and e) continuing the treatment with guided compressions until additional medical help arrives or the victim stabilizes.

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