Adaptive Tissue Thickness Compensator System for Enhanced Surgical Precision

Publication ID: 24-11857187_0005_PTD
Published: November 07, 2025
Category:Future Evolutions & Paradigm Shifts

Legal Citation

pr1or.art Inc., “Adaptive Tissue Thickness Compensator System for Enhanced Surgical Precision,” Published Technical Disclosure No. 24-11857187_0005_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857187_0005_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. 11,857,187.

Summary of the Inventive Concept

The present invention relates to a next-generation tissue thickness compensator system that dynamically adjusts to real-time tissue thickness changes during surgical procedures, ensuring optimal staple formation and tissue compensation.

Background and Problem Solved

The original patent addressed the need for tissue thickness compensation in surgical instruments. However, its fixed hydrogel design limited its adaptability to varying tissue types and surgical procedures. The new inventive concept addresses this limitation by introducing a dynamically adjustable hydrogel component, real-time tissue thickness sensing, and machine learning-based control.

Detailed Description of the Inventive Concept

The adaptive tissue thickness compensator system comprises a hydrogel component that can be dynamically adjusted in response to real-time tissue thickness changes detected by a sensing module. The system can be integrated into various surgical instruments, including staple cartridges, and is controlled by a machine learning-based algorithm that predicts optimal staple formation and tissue thickness compensation parameters. The system also features interchangeable hydrogel modules with varying expansion and release rates, allowing for rapid adaptation to different tissue types and surgical procedures.

Novelty and Inventive Step

The new inventive concept's dynamically adjustable hydrogel component, real-time tissue thickness sensing, and machine learning-based control represent a significant departure from the fixed hydrogel design of the original patent. The ability to adapt to varying tissue types and surgical procedures in real-time constitutes a non-obvious advancement in the field of surgical instruments.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different sensing modalities, such as optical or acoustic sensors, or the integration of the system with robotic-assisted surgical platforms. Variations could also include the development of customized tissue thickness compensators using computer-aided design systems and machine learning algorithms.

Potential Commercial Applications and Market

The adaptive tissue thickness compensator system has significant commercial potential in the surgical instrument market, particularly in the areas of minimally invasive surgery, laparoscopic surgery, and robotic-assisted surgery. The system's ability to enhance surgical precision and adapt to varying tissue types could lead to improved patient outcomes and reduced healthcare costs.

CPC Classifications

SectionClassGroup
A A61 A61B17/07207
A A61 A61B17/00491
A A61 A61B17/0643
A A61 A61B17/0644
A A61 A61B17/072
A A61 A61B17/07292
A A61 A61B17/1155
H H05 H05K999/99
A A61 A61B17/2909
A A61 A61B2017/00004
A A61 A61B2017/0053
A A61 A61B2017/00314
A A61 A61B2017/00327
A A61 A61B2017/00477
A A61 A61B2017/00495
A A61 A61B2017/00526
A A61 A61B2017/00818
A A61 A61B2017/00862
A A61 A61B2017/00884
A A61 A61B2017/00889
A A61 A61B2017/00893
A A61 A61B2017/00898
A A61 A61B2017/0725
A A61 A61B2017/07228
A A61 A61B2017/07235
A A61 A61B2017/07242
A A61 A61B2017/07257
A A61 A61B2017/07264
A A61 A61B2017/07271
A A61 A61B2017/07278
A A61 A61B2017/07285
A A61 A61B2017/2908
A A61 A61B2017/2919
A A61 A61B2017/2923
A A61 A61B2017/2927
A A61 A61B2017/2933
A A61 A61B2017/2936
A A61 A61B2017/2946
A A61 A61B2017/320052
F F04 F04C2270/0421

Field of Art

Surgical instrument design, specifically tissue manipulation and stapling technologies, with expertise in biomaterials, medical device engineering, and advanced material science related to surgical interventions

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with advanced degrees in bioengineering, mechanical engineering, or related fields, possessing knowledge of surgical instrument design, hydrogel technologies, and adaptive medical systems

Obviousness Rationale

A PHOSITA would recognize that the PTD's dynamic tissue thickness compensation represents a predictable extension of the source patent's hydrogel-based staple cartridge technology. The incorporation of real-time sensing and machine learning control represents an incremental improvement using known techniques in medical device design. The fundamental concept of tissue thickness compensation remains consistent, with the PTD merely adding adaptive control mechanisms that are well-established in the medical device engineering field.

Obvious Combinations & Variations

Source Patent Element
Hydrogel-based staple cartridge with dry hydrogel components
PTD Variation
Dynamically adjustable hydrogel with real-time thickness sensing and machine learning control
Obviousness Reasoning
A PHOSITA would find it obvious to add sensing and adaptive control to an existing hydrogel system as a predictable improvement in medical device technology, utilizing standard control engineering principles
Source Patent Element
Staple cartridge with hydrogel comprising polyalkylene oxides and carbohydrate-derived microgels
PTD Variation
Interchangeable hydrogel modules with varying expansion and release rates
Obviousness Reasoning
Modular design and material variation are standard design approaches in medical device engineering, representing a routine optimization of existing hydrogel technologies
Source Patent Element
Fixed hydrogel configuration in surgical stapling instruments
PTD Variation
Machine learning-based controller predicting optimal staple formation parameters
Obviousness Reasoning
Integrating computational intelligence into medical devices is a known technique for enhancing precision, representing an obvious application of contemporary control system approaches
Source Patent Element
Hydrogel-based tissue thickness compensation mechanism
PTD Variation
Computer-aided design system for customized tissue thickness compensators
Obviousness Reasoning
Computational design optimization is a standard engineering approach for refining medical device performance, representing a predictable extension of existing design methodologies
35 U.S.C. § 103 Summary: Based on US Patent 11857187's disclosure of hydrogel-based tissue thickness compensation technologies, the present publication demonstrates that the claimed variations represent obvious modifications to the prior art, employing standard engineering techniques and predictable combinations of known elements in surgical instrument design. A person having ordinary skill in the art would find the disclosed adaptive tissue thickness compensation system an obvious variation of the existing technological landscape.

Original Patent Information

Patent NumberUS 11,857,187
TitleTissue thickness compensator comprising controlled release and expansion
Assignee(s)Cilag GmbH International