Published Technical Disclosure Archive

Cryogenic Freeze Zone Regulation for Diverse Applications

Publication ID: 24-11857239_0002_PTD
Published: November 07, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Cryogenic Freeze Zone Regulation for Diverse Applications,” Published Technical Disclosure No. 24-11857239_0002_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857239_0002_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,239.

Summary of the Inventive Concept

This inventive concept leverages the core technology of cryogenic needle with freeze zone regulation to expand its application into new industries, including food preservation, agricultural crop treatment, 3D printing, biological sample preservation, and waterborne contaminant removal.

Background and Problem Solved

The original patent focused on cryogenic cooling for dermatological tissue remodeling, but its limitation was the narrow scope of application. The new inventive concept addresses this limitation by applying the core technology to various industries, providing a solution for precise temperature control and selective cooling in diverse fields.

Detailed Description of the Inventive Concept

The cryogenic cooling device with freeze zone regulation mechanism is adapted for use in multiple applications. In food preservation, the device selectively cools food products to maintain freshness and quality. In agricultural crop treatment, the device preserves crops by controlling temperature and humidity. In 3D printing, the device solidifies printing materials at a precise temperature range. In biological sample preservation, the device maintains the integrity of samples at a specific temperature. In waterborne contaminant removal, the device selectively cools and removes contaminants from water.

Novelty and Inventive Step

The new inventive concept introduces novel applications and use cases for the cryogenic needle with freeze zone regulation, expanding its scope beyond dermatological tissue remodeling. The inventive step lies in adapting the core technology to address specific challenges in diverse industries, providing a unique solution for precise temperature control and selective cooling.

Alternative Embodiments and Variations

Alternative embodiments of the cryogenic cooling device could include modifications to the needle probe, coolant supply system, and valve design to accommodate specific industry requirements. Variations of the device could also incorporate additional features, such as sensors, temperature control algorithms, and automation systems to enhance its functionality and efficiency.

Potential Commercial Applications and Market

The cryogenic freeze zone regulation technology has significant commercial potential in various industries, including food processing, agriculture, 3D printing, biotechnology, and environmental remediation. The market for this technology is vast, with opportunities for partnerships, licensing, and product development.

CPC Classifications

SectionClassGroup
A A61 A61B18/02
A A61 A61B2017/00473
A A61 A61B2018/00029
A A61 A61B2018/00041
A A61 A61B2018/00648
A A61 A61B2018/00714
A A61 A61B2018/00738
A A61 A61B2018/00744
A A61 A61B2018/00779
A A61 A61B2018/00791
A A61 A61B2018/00898
A A61 A61B2018/00994
A A61 A61B2018/0262
A A61 A61B2018/0293

Field of Art

Medical and industrial cryogenic cooling technologies, encompassing precision temperature control systems for tissue treatment, preservation, and material processing across multiple domains

Person of Ordinary Skill (PHOSITA) Profile

A skilled practitioner with expertise in thermal engineering, medical device design, and cryogenic systems, capable of adapting cooling technologies across different technical applications

Obviousness Rationale

A PHOSITA would recognize that the core cryogenic needle technology with freeze zone regulation is fundamentally adaptable to multiple technical domains by applying known temperature control principles. The source patent's core mechanism of selective cooling and precise temperature management provides a transferable technological framework. The variations in the PTD represent predictable extensions of the original cryogenic cooling concept by applying established engineering principles of temperature control and selective cooling across different material and environmental contexts.

Obvious Combinations & Variations

Source Patent Element
Needle probe with coolant supply system regulated by a valve to control cooling zone size
PTD Variation
Adapting the needle probe and valve system for food preservation and biological sample cooling
Obviousness Reasoning
A PHOSITA would recognize that precise temperature control mechanisms are universally applicable across thermal management scenarios, with minor design adaptations to accommodate specific material requirements
Source Patent Element
Method of monitoring temperature and power supplied to heater assembly
PTD Variation
Implementing temperature monitoring and control in agricultural crop and 3D printing material cooling processes
Obviousness Reasoning
Temperature regulation techniques are well-understood engineering principles that can be readily transferred between technical domains with predictable results
Source Patent Element
Selective tissue cooling mechanism with precise zone regulation
PTD Variation
Extending cooling mechanism to waterborne contaminant removal and material solidification
Obviousness Reasoning
The fundamental principle of selective thermal zone management is a known technique that can be applied across different material interaction scenarios
Source Patent Element
Cryogenic cooling with configurable temperature range
PTD Variation
Standardizing temperature range of -5°C to -50°C across multiple application domains
Obviousness Reasoning
A PHOSITA would recognize that temperature ranges can be systematically adapted based on material properties and desired thermal outcomes
Source Patent Element
Needle probe design with configurable coolant flow
PTD Variation
Modifying needle probe geometry and coolant flow for diverse industrial applications
Obviousness Reasoning
Probe design is a matter of routine engineering optimization based on specific application requirements, representing an obvious design adaptation
35 U.S.C. § 103 Summary: Based on US Patent 11857239's disclosure of cryogenic needle cooling technology, the present publication demonstrates that a person having ordinary skill in the art would find the extended applications of cryogenic cooling across food preservation, agricultural treatment, 3D printing, biological sample preservation, and contaminant removal to be obvious variations of the fundamental thermal control mechanism, thus rendering potential claims in these domains obvious and unpatentable.

Original Patent Information

Patent NumberUS 11,857,239
TitleCryogenic needle with freeze zone regulation
Assignee(s)Pacira CryoTech, Inc.