Published Technical Disclosure Archive

Ultrashort Laser Pulse Technology for Dermatological Applications

Publication ID: 24-11857463_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Ultrashort Laser Pulse Technology for Dermatological Applications,” Published Technical Disclosure No. 24-11857463_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857463_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. 11,857,463.

Summary of the Inventive Concept

The inventive concept applies the core technology of ultrashort laser pulses to various dermatological applications, including skin conditions, hair removal, acne treatment, skin rejuvenation, and vascular lesion removal.

Background and Problem Solved

The original patent disclosed the use of ultrashort laser pulses for treating glaucoma. However, the limitations of this technology in terms of its specificity to ophthalmic surgery and the need for new applications in the field of dermatology led to the development of this new inventive concept. The inventive concept addresses the problem of finding effective and precise treatments for various dermatological conditions.

Detailed Description of the Inventive Concept

The inventive concept utilizes ultrashort laser pulses with pulse durations in the range from 20 fs to 300 ps to target specific tissue in the skin. The laser device can be configured to deliver these pulses through various elements, such as fiberoptic elements or goniolenses, to enable precise control over the photodisruptive treatment of skin conditions, hair removal, acne treatment, skin rejuvenation, and vascular lesion removal. The inventive concept can be implemented in various systems and methods, including those disclosed in the newly generated claims.

Novelty and Inventive Step

The new claims introduce a novel application of ultrashort laser pulses in the field of dermatology, which is distinct from the original patent's focus on ophthalmic surgery. The inventive step lies in the adaptation of the core technology to address specific dermatological conditions, demonstrating a non-obvious and innovative solution.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different laser pulse durations, wavelengths, or repetition rates to target specific skin conditions. Variations of the inventive concept could also involve the integration of the laser device with other dermatological treatment modalities, such as topical creams or light-based therapies.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the dermatological market, with potential applications in various industries, including aesthetic medicine, pharmaceuticals, and medical devices. The target market includes dermatologists, aesthetic practitioners, and patients seeking effective treatments for various skin conditions.

CPC Classifications

SectionClassGroup
A A61 A61F9/00825
A A61 A61F9/009
A A61 A61F9/0084
A A61 A61F2009/00851
A A61 A61F2009/00865
A A61 A61F2009/00868
A A61 A61F2009/00891
A A61 A61F2009/00897

Field of Art

Laser-based medical treatments, specifically photodisruptive techniques for tissue modification in ophthalmology and dermatology, requiring expertise in laser physics, optical engineering, and medical device design

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device researcher with advanced degrees in optics, bioengineering, or medical physics, possessing knowledge of ultrashort pulse laser technologies and their applications in minimally invasive surgical interventions

Obviousness Rationale

A PHOSITA would recognize that the fundamental principles of ultrashort pulse laser photodisruption are transferable across different tissue types and medical specialties. The source patent's core technological approach of precise tissue ablation using ultrashort laser pulses provides a clear technological framework that can be systematically adapted to dermatological applications. The technical similarities in pulse duration, targeting methodology, and photodisruptive mechanism make the dermatological variations a predictable extension of the original ophthalmic surgical technique.

Obvious Combinations & Variations

Source Patent Element
Laser pulses transmitted through cornea or gonioscopic lens for precise tissue ablation
PTD Variation
Laser pulses transmitted through fiberoptic elements or goniolenses for dermatological tissue targeting
Obviousness Reasoning
Known technique of using optical transmission elements for precise laser energy delivery, representing a straightforward design adaptation across medical domains
Source Patent Element
Scanning laser pulses in adjacent regions to create controlled tissue openings
PTD Variation
Scanning laser pulses in ablation patterns to create micro-injuries for skin rejuvenation
Obviousness Reasoning
Predictable application of established laser scanning technique to stimulate controlled tissue remodeling in a different biological context
Source Patent Element
Ultrashort laser pulses with specific pulse duration range for photodisruption
PTD Variation
Applying identical pulse duration range (20 fs to 300 ps) to target different tissue types in skin
Obviousness Reasoning
Finite set of known pulse parameters that can be systematically applied across different tissue types with predictable photomechanical effects
Source Patent Element
Precise targeting of specific tissue structures in eye
PTD Variation
Precise targeting of specific skin structures like hair follicles, blood vessels, and collagen
Obviousness Reasoning
Established laser targeting methodology that can be directly translated between tissue types using known optical and photomechanical principles
Source Patent Element
Photodisruptive tissue modification for medical treatment
PTD Variation
Extending photodisruptive technique to dermatological conditions like acne, hair removal, and vascular lesions
Obviousness Reasoning
Predictable technological extension using known laser interaction principles, representing an obvious variation within a finite set of medical applications
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857463, a person having ordinary skill in the art would find the dermatological laser treatment variations disclosed herein to be obvious and anticipated, as the fundamental technological approach of ultrashort pulse photodisruption represents a predictable adaptation across medical tissue modification domains, thereby rendering potential claims to such variations unpatentable under 35 U.S.C. ยง 103.

Original Patent Information

Patent NumberUS 11,857,463
TitleMethods for the treatment of glaucoma using visible and infrared ultrashort laser pulses