Insulative Surgical Cap with Openable Closure for Temperature Control
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Solution Overview
Problem
Current surgical caps fail to effectively maintain patient body temperature during surgery, particularly in the perioperative and postoperative periods, as they often allow heat loss through the head and ears, and obstruct central venous access when trying to prevent hypothermia-related complications like hypertension and tachycardia.
Innovation Solution
A flexible, disposable surgical cap designed to contour the head and ears, made from insulative materials like THERMALITE®, THINSULATE®, or OUTLAST®, with a chin strap and gusseted portions for a secure fit, minimizing air gaps and allowing access to the central venous region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a surgical cap covers the head and neck region to prevent heat loss, then patient body temperature is maintained, but central venous access is obstructed
Solution Approach 1:
The surgical cap is divided into distinct functional zones: an insulative portion covering the head to prevent heat loss, and a separate closure portion that can be opened to provide access to the neck region for central venous procedures. This segmentation allows the cap to maintain temperature while enabling medical access when needed.
Solution Approach 2:
The closure portion is designed to be strategically positioned and openable, extracting the barrier function from the entire cap structure. This allows the insulative portion to remain closed for thermal protection while the closure portion can be opened specifically for central venous access without compromising the overall insulation.
2Temperature
If a surgical cap is made from insulative material to reduce heat loss, then patient euthermia is maintained, but the cap shifts during surgery
Solution Approach 1:
The cap incorporates adjustable closure mechanisms that can be dynamically adjusted to fit different head sizes and shapes. The closure portion can be tightened or loosened to secure the cap in position, preventing shifting during surgery while maintaining the insulative properties throughout the procedure.
Solution Approach 2:
The cap is constructed with flexible insulative materials that can conform to the patient's head contours. This flexibility allows the cap to adapt to head movements and maintain stable positioning without rigid structures that would cause discomfort or displacement during surgical procedures.
3Loss of energy
If a surgical cap covers the ears to prevent heat loss, then heat escape through extremities is reduced, but the cap design becomes more complex
Solution Approach 1:
The cap design integrates ear coverage into the overall insulative structure without requiring separate components. The same insulative material and closure mechanism used for the head also extend to cover the ears, providing multi-functional protection against heat loss through both the head and ear regions using a unified design approach.
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
The cap effectively maintains patient euthermia by reducing heat loss and preventing the cap from shifting during surgery, while ensuring access for medical procedures, thus reducing risks associated with hypothermia.
Implementation Method 1
the cap is comprised of an insulative material that is both stretchable and flexible to provide a means for the cap to follow the contour of a head
Implementation Method 2
a commercially synthetic material having fibers that contain a plurality of microencapsulated and paraffinic hydrocarbons (hereinafter a 'phase change material')
Data Source
AI summary
The present invention relates generally to a device and a method that maintains a patient's body temperature during surgical exposure and, more specifically, to a surgical, insulative cap that is contoured to the patient's head. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.