Hand-Held Cryotherapy Spray Control with Holder-Tube Heating
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Solution Overview
Problem
Existing cryomedical technologies face challenges in precisely controlling temperature and pressure of cryogens for effective applications beyond surgical therapies, such as anesthesia, pain relief, acne treatment, and hair loss, due to insufficient precision and promptness in temperature control.
Innovation Solution
A hand-held cooling device with a cryogen temperature pressure controller that includes a holder tube, porous structure, and heater to control the thermodynamic state of cryogens, allowing precise temperature adjustment and pressure regulation before spraying, using the Joule-Thomson effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cryogen is sprayed directly from the reservoir without temperature pressure control, then the device structure is simple, but the temperature and pressure control precision is insufficient
Solution Approach 1:
The device is divided into distinct functional modules: a reservoir for storing cryogen, a temperature pressure controller with separate heating and cooling units, a valve for flow regulation, and a spraying unit. This segmentation allows each component to perform its specific function independently, achieving precise temperature and pressure control while maintaining a manageable overall structure.
Solution Approach 2:
The temperature pressure controller is positioned between the reservoir and the spraying unit to pre-regulate the cryogen's temperature and pressure before it reaches the spraying unit. This preliminary action ensures that the cryogen is in the optimal state for treatment, improving control precision without requiring complex adjustments at the spraying stage.
2Manufacturing precision
If cryogen temperature is not controlled before spraying, then the device structure is simple, but the precision of cooling protocol is insufficient
Solution Approach 1:
The temperature pressure controller includes sensors and control mechanisms that monitor the cryogen's temperature and pressure, automatically adjusting heating and cooling operations to maintain precise control. This feedback mechanism ensures accurate cooling protocols while managing the complexity through automated control rather than manual intervention.
Solution Approach 2:
The system dynamically adjusts temperature and pressure parameters of the cryogen by controlling the heating and cooling units. By changing these physical parameters in a controlled manner, the device achieves precise cooling protocols tailored to different treatment requirements without requiring fundamentally different device structures.
3Reliability
If cryogen pressure is not regulated, then the device structure is simple, but the spray consistency and treatment effectiveness are reduced
Solution Approach 1:
The temperature pressure controller integrates both temperature control (heating and cooling units) and pressure regulation (valve control) into a single coordinated system. This merging of functions ensures that temperature and pressure are regulated simultaneously and consistently, improving spray reliability and treatment effectiveness while avoiding the need for separate, complex pressure regulation subsystems.
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
Enables precise and efficient cooling protocols for various clinical effects like cryoanesthesia and immune activation, minimizing normal cell destruction and pain, by stabilizing temperature and pressure of cryogens before application.
Implementation Method 1
a heater configured to heat the cryogen moving to the spraying unit
Implementation Method 2
using the Joule-Thomson effect
Data Source
AI summary
Proposed is a hand-held cooling device for supplying a cryogen to a target region for cryotherapy. The device can include a cryogen container configured to contain a first cryogen having a first temperature and a nozzle configured to spray a first modified cryogen to the target region, the first modified cryogen having a second temperature higher than the first temperature. The device can also include a cryogen temperature regulator configured to receive the first cryogen and output the first modified cryogen to the nozzle, the cryogen temperature regulator disposed closer to the nozzle than the cryogen container. The cryogen temperature regulator can include a holder tube, a porous structure disposed inside a holder tube and a heater disposed around the holder tube and heating the holder tube so as to increase the first temperature to the second temperature while the first cryogen passes through the porous structure.