Enhanced Surgical Instruments with Advanced Articulation Joint Arrangements

Publication ID: 24-11857182_0006_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Surgical Instruments with Advanced Articulation Joint Arrangements,” Published Technical Disclosure No. 24-11857182_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857182_0006_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. 11,857,182.

Summary of the Inventive Concept

An improved surgical instrument design featuring advanced articulation joint arrangements that enhance flexibility, maneuverability, and precision during surgical procedures.

Background and Problem Solved

The original patent, 'Surgical instruments with combination function articulation joint arrangements,' provides a foundation for surgical instruments with articulatable end effectors. However, these instruments may still exhibit limitations in terms of flexibility, safety, and precision. The present inventive concept addresses these limitations by introducing novel mechanical linkage systems, redundant safety mechanisms, electromechanical actuation systems, and optical sensor systems to improve the overall performance and usability of surgical instruments.

Detailed Description of the Inventive Concept

The enhanced surgical instrument design features an articulation joint comprising a novel mechanical linkage system that enables more flexible and precise articulation of the surgical end effector. This system allows for smoother and more controlled movements during surgical procedures. Additionally, a redundant safety mechanism prevents accidental articulation, ensuring a safer operating environment. The instrument may also incorporate an electromechanical actuation system, powered by a rechargeable battery, which provides real-time feedback to the surgeon regarding the instrument's articulation status. Furthermore, an optical sensor system integrated into the surgical end effector offers real-time visualization of the surgical site during articulation, enhancing the surgeon's ability to navigate complex procedures.

Novelty and Inventive Step

The present inventive concept's novel mechanical linkage system, redundant safety mechanism, electromechanical actuation system, and optical sensor system provide a non-obvious improvement over the original patent, addressing the limitations of flexibility, safety, and precision. These advancements enable a more efficient, safe, and effective surgical experience.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include variations in the mechanical linkage system, such as using different materials or geometries, or incorporating additional sensors or actuators to further enhance the instrument's performance. Other variations may include adapting the design for use in specific surgical procedures, such as laparoscopic or robotic-assisted surgeries.

Potential Commercial Applications and Market

The enhanced surgical instrument design has significant commercial potential in the medical device industry, particularly in the areas of laparoscopic, endoscopic, and robotic-assisted surgeries. The improved flexibility, safety, and precision of the instrument are expected to appeal to surgeons and hospitals seeking to enhance patient outcomes and reduce operational costs.

CPC Classifications

SectionClassGroup
A A61 A61B17/0686
A A61 A61B17/00234
A A61 A61B17/068
A A61 A61B17/072
A A61 A61B17/07207
A A61 A61B17/29
A A61 A61B17/320092
A A61 A61B34/30
A A61 A61B2017/00314
A A61 A61B2017/00323
A A61 A61B2017/00336
A A61 A61B2017/00367
A A61 A61B2017/00389
A A61 A61B2017/00398
A A61 A61B2017/00477
A A61 A61B2017/07214
A A61 A61B2017/07257
A A61 A61B2017/07271
A A61 A61B2017/07278
A A61 A61B2017/07285
A A61 A61B2017/2927
A A61 A61B2017/320071
A A61 A61B2017/320093
A A61 A61B2017/320094
A A61 A61B2017/320095
A A61 A61B2017/320097
A A61 A61B2034/301

Field of Art

Surgical instrument design, specifically articulating surgical tools with complex mechanical and electromechanical joint systems for minimally invasive surgical procedures, requiring advanced mechanical engineering, biomechanical, and medical device design expertise

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer with 5-7 years experience in surgical instrument design, familiar with mechanical linkage systems, articulation mechanisms, safety design principles, and medical device electromechanical integration

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable engineering improvements to the source patent's articulation joint design, utilizing standard techniques of mechanical linkage enhancement, safety mechanism integration, and sensor-based feedback systems that are well-established in medical device engineering. The disclosed modifications represent incremental advancements that would be obvious to a skilled practitioner seeking to improve surgical instrument flexibility and precision. The technical solutions proposed are logical extensions of existing design principles in surgical instrumentation.

Obvious Combinations & Variations

Source Patent Element
Articulation joint with flexible actuators extending through proximal, central, and distal joint members
PTD Variation
Novel mechanical linkage system with redundant safety mechanism to prevent accidental articulation
Obviousness Reasoning
Adding safety interlocks to existing articulation mechanisms is a predictable design improvement to prevent unintended instrument movement, representing a known technique in medical device safety engineering
Source Patent Element
Surgical instrument with shaft assembly and end effector
PTD Variation
Electromechanical actuation system with rechargeable battery providing real-time articulation feedback
Obviousness Reasoning
Integrating electronic feedback and power systems into mechanical surgical instruments is a standard design evolution, utilizing known electrical engineering techniques to enhance instrument functionality
Source Patent Element
Surgical end effector with articulation capabilities
PTD Variation
Optical sensor system for real-time surgical site visualization during articulation
Obviousness Reasoning
Incorporating sensor technologies to improve surgical visualization is a predictable enhancement, representing a finite and obvious solution to improving surgical instrument performance
Source Patent Element
Articulation joint configured for selective movement about multiple axes
PTD Variation
Advanced mechanical linkage geometries to enhance instrument flexibility and maneuverability
Obviousness Reasoning
Modifying joint geometries to improve range of motion is a standard design optimization approach, representing an obvious mechanical engineering solution
Source Patent Element
Surgical instrument with shaft assembly and end effector
PTD Variation
Alternative embodiment designs adapting the articulation mechanism for specific surgical procedures
Obviousness Reasoning
Tailoring surgical instrument designs for specific procedural contexts is a routine design adaptation within medical device engineering, representing a predictable variation
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857182 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations of surgical instrument articulation mechanisms to be obvious and lacking inventive step. The proposed modifications represent predictable engineering solutions utilizing known techniques in mechanical linkage design, safety integration, and electromechanical enhancement, thereby rendering subsequent claims of similar technical variations unpatentable under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,182
TitleSurgical instruments with combination function articulation joint arrangements
Assignee(s)Cilag GmbH International