CPR Elevation Device for Cerebral Perfusion
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Solution Overview
Problem
Conventional methods for treating medical conditions involving traumatic brain injuries, such as elevating a patient's head and shoulders, do not effectively prime the body for optimal blood flow to the brain, leading to inadequate blood circulation and potential complications during cardiopulmonary resuscitation (CPR).
Innovation Solution
A method and device that gradually elevate a patient's head and chest during CPR, starting from a horizontal position and incrementally increasing the elevation over time, while performing chest compressions, to prime the circulatory system and enhance blood flow to the brain and heart, using an elevation device with adjustable supports and sensors to monitor and control the elevation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the patient's head and shoulders are elevated using conventional methods (pillow, bed, or gurney at a single set angle), then the patient is maintained in an upright or partially elevated position, but the body is not given an opportunity to prime itself for elevation, resulting in less than ideal blood flow to the brain
Solution Approach 1:
The device performs preliminary action by initially positioning the patient in a horizontal or slightly bent position before elevation, allowing the circulatory system to prime itself. This preliminary positioning ensures that blood flow pathways are established before the head and chest are elevated, preventing inadequate cerebral perfusion that would occur with immediate elevation.
Solution Approach 2:
The device transforms the static elevation process into a dynamic, multi-stage sequence. The patient's position changes progressively from horizontal to elevated, with the ability to pause at intermediate positions. This dynamic approach allows the circulatory system to adapt to elevation changes, optimizing blood flow to the brain while maintaining ease of operation through automated control.
2Reliability
If the patient is elevated to improve blood flow to the brain, then cerebral perfusion is enhanced, but rapid elevation may cause the body to struggle to push blood uphill effectively
Solution Approach 1:
The device allows the body to prime itself by initially maintaining a horizontal or slightly bent position before elevation begins. This preliminary phase establishes adequate blood flow pathways and pressure gradients, ensuring that when elevation subsequently occurs, the circulatory system is already prepared to effectively push blood uphill to the brain.
Solution Approach 2:
The elevation process is divided into periodic stages with the ability to pause at intermediate positions. The device can elevate the patient to an intermediate angle, pause to allow physiological adaptation, and then continue elevation to the final position. This periodic approach optimizes cerebral perfusion by allowing the circulatory system to adjust incrementally rather than experiencing sudden gravitational changes.
3Reliability
If the patient is elevated to reduce intracranial pressure, then brain swelling is reduced, but the elevation process may be complicated by the need to coordinate with CPR procedures
Solution Approach 1:
The device merges the elevation function with CPR capabilities into a single integrated system. The same device that elevates the patient's head and chest also performs or coordinates chest compressions, eliminating the need for separate equipment and simplifying the overall treatment process while maintaining effective intracranial pressure control.
Solution Approach 2:
The device is designed with multi-functionality, serving both as an elevation mechanism for intracranial pressure control and as a CPR device for cardiovascular support. This universal design allows a single device to address multiple critical needs simultaneously, reducing overall system complexity despite the multifaceted therapeutic requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach improves cerebral and coronary perfusion pressures, reduces intracranial pressure, and enhances blood flow to the brain and heart, providing better outcomes during CPR by allowing the body to adjust to the elevation changes, thereby minimizing risks and maximizing benefits.
Implementation Method 1
elevating the head and thorax improves blood flow to the heart and brain... the simultaneous concussion of the brain by high arterial and venous pressure waves is reduced as the venous pressures (and thus the ICP) are reduced by gravity
Data Source
AI summary
A method of increasing blood flow to the head includes causing an individual's blood to circulate while the individual's heart and head are at a first elevation position, elevating the individual's heart and head to a second elevation position that is above the first elevation position, and causing the individual's blood to circulate while the individual's heart and head are at the second elevation position.