Enhanced Surgical Stapling Assembly with Advanced Materials and Coatings

Publication ID: 24-11857183_0001_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Surgical Stapling Assembly with Advanced Materials and Coatings,” Published Technical Disclosure No. 24-11857183_0001_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857183_0001_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. 11,857,183.

Summary of the Inventive Concept

This inventive concept introduces a range of direct improvements and enhancements to the original stapling assembly components, focusing on durability, efficiency, and safety. The new design incorporates advanced materials and coatings, such as ceramic, nanocoating, antimicrobial agents, and carbon fibers, to create a more reliable and effective surgical stapling device.

Background and Problem Solved

The original patent described stapling assembly components with metal substrates and plastic bodies, which, although effective, still had limitations. The metal substrates were prone to corrosion, and the plastic bodies could be brittle and prone to cracking. The new inventive concept addresses these limitations by introducing advanced materials and coatings that improve durability, reduce friction, and minimize the risk of infection.

Detailed Description of the Inventive Concept

The enhanced surgical stapling assembly comprises a metal substrate reinforced with a ceramic coating to improve durability and resistance to corrosion. The stapling cartridge features a metal substrate treated with a nanocoating to reduce friction and improve staple deployment. The channel retainer incorporates a plastic body infused with antimicrobial agents to reduce the risk of infection. Additionally, the plastic body can be reinforced with carbon fibers to improve strength and reduce weight. The manufacturing process involves forming the metal substrate, printing the plastic body onto it, and treating the metal substrate with a corrosion-resistant coating.

Novelty and Inventive Step

The new claims introduce a range of novel and non-obvious features, including the use of ceramic coatings, nanocoatings, antimicrobial agents, and carbon fibers. These advancements provide a significant improvement over the original patent, addressing specific limitations and providing a more reliable and effective surgical stapling device.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of other advanced materials, such as titanium or silver, to further improve durability and antimicrobial properties. The design could also be adapted for use in other surgical instruments, such as cutting devices or endoscopes.

Potential Commercial Applications and Market

The enhanced surgical stapling assembly has significant commercial potential in the medical device industry, particularly in the areas of minimally invasive surgery and laparoscopic procedures. The target market includes hospitals, surgical centers, and medical device manufacturers, who will benefit from the improved performance, safety, and efficiency of the new device.

CPC Classifications

SectionClassGroup
A A61 A61B17/072
A A61 A61B17/07207
A A61 A61B17/115
A A61 A61B2017/0042
A A61 A61B2017/00398
A A61 A61B2017/07214
A A61 A61B2017/07264
A A61 A61B2017/07271
A A61 A61B2017/07278
A A61 A61B2017/07285
A A61 A61B2017/2927
A A61 A61B2017/2933
A A61 A61B2034/302

Field of Art

Surgical instrument design, specifically surgical stapling and cutting devices, requiring expertise in mechanical engineering, materials science, and medical device manufacturing with advanced knowledge of metal-plastic composite structures and surgical instrument components

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or mechanical engineer with 3-5 years experience in surgical instrument design, familiar with advanced manufacturing techniques, material science principles, and medical device performance requirements

Obviousness Rationale

A person having ordinary skill would recognize that the source patent's fundamental design of metal substrate and plastic body provides a clear technological framework for incremental material and coating improvements. The PTD's variations represent predictable engineering solutions using known advanced materials and manufacturing techniques to enhance existing surgical stapling device performance. These modifications would be considered routine optimization within the technological capabilities of a skilled practitioner in medical device engineering.

Obvious Combinations & Variations

Source Patent Element
Metal substrate with plastic body in surgical stapling device
PTD Variation
Adding ceramic coating to metal substrate for improved durability
Obviousness Reasoning
Material enhancement through protective coatings is a standard engineering approach for improving substrate performance, representing a predictable solution with expected incremental benefits
Source Patent Element
Printed plastic body on metal substrate
PTD Variation
Incorporating antimicrobial agents into plastic body
Obviousness Reasoning
Adding functional agents to polymeric materials is a known technique for improving medical device performance, representing a straightforward design modification with clear medical utility
Source Patent Element
Channel retainer with metal and plastic components
PTD Variation
Reinforcing plastic body with carbon fibers to improve strength
Obviousness Reasoning
Composite material reinforcement is a standard engineering method for enhancing mechanical properties, representing a predictable solution using well-understood material science principles
Source Patent Element
Surgical stapling device with metal substrate
PTD Variation
Applying nanocoating to reduce friction and improve staple deployment
Obviousness Reasoning
Surface modification techniques are routine in medical device engineering for improving functional performance, representing a known approach to incremental device optimization
Source Patent Element
Surgical instrument manufacturing process
PTD Variation
Adding corrosion-resistant coating treatment step
Obviousness Reasoning
Surface treatment processes are standard manufacturing techniques for improving material longevity, representing a predictable extension of existing production methods
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857183 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations obvious through routine engineering optimization. The incremental improvements in material composition, coating techniques, and manufacturing processes represent predictable solutions within the existing technological framework of surgical stapling device design, thereby rendering potential patent claims obvious and unpatentable under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,183
TitleStapling assembly components having metal substrates and plastic bodies
Assignee(s)Cilag GmbH International