Enhanced Handheld Electromechanical Surgical System with Real-time Strain Feedback and Adaptive Motor Control

Publication ID: 24-11857194_0006_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Handheld Electromechanical Surgical System with Real-time Strain Feedback and Adaptive Motor Control,” Published Technical Disclosure No. 24-11857194_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857194_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. 11,857,194.

Summary of the Inventive Concept

An improved handheld electromechanical surgical system that incorporates real-time strain feedback and adaptive motor control to optimize tissue clamping force, reduce tissue trauma, and enhance overall surgical performance.

Background and Problem Solved

The original handheld electromechanical surgical system, while effective, has limitations in terms of inconsistent tissue clamping force and potential tissue trauma. The new inventive concept addresses these limitations by integrating advanced sensing and control technologies to provide real-time feedback and adapt to changing surgical conditions.

Detailed Description of the Inventive Concept

The enhanced handheld electromechanical surgical system features an integrated strain sensor that measures strain on the anvil assembly during a surgical procedure. This real-time feedback is used to adjust motor speed and torque to optimize tissue clamping force. The system also incorporates a dynamic clamping force control algorithm that adjusts motor parameters based on tissue impedance measurements to ensure consistent and safe tissue clamping. Additionally, the adapter assembly is enhanced with a built-in sensor to detect reload type and automatically configure motor speed and torque for optimal performance.

Novelty and Inventive Step

The new inventive concept introduces the novel combination of real-time strain feedback and adaptive motor control, which provides a significant improvement over the original patent. The use of advanced sensing and control technologies enables the system to dynamically adjust to changing surgical conditions, ensuring optimal tissue clamping force and reduced tissue trauma.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different sensing technologies, such as optical or acoustic sensors, to measure strain or tissue impedance. Additionally, the system could be adapted for use in various surgical procedures, such as laparoscopic or endoscopic surgeries, or integrated with other surgical instruments to provide a comprehensive surgical solution.

Potential Commercial Applications and Market

The enhanced handheld electromechanical surgical system has significant commercial potential in the medical device industry, particularly in the areas of general surgery, laparoscopic surgery, and endoscopic surgery. The system's ability to optimize tissue clamping force and reduce tissue trauma could lead to improved patient outcomes, reduced complications, and enhanced surgical efficiency.

CPC Classifications

SectionClassGroup
A A61 A61B17/1155
A A61 A61B17/072
A A61 A61B17/07207
A A61 A61B17/320016
A A61 A61B17/068
A A61 A61B90/98
A A61 A61B2017/00017
A A61 A61B2017/00022
A A61 A61B2017/0046
A A61 A61B2017/00119
A A61 A61B2017/00199
A A61 A61B2017/00221
A A61 A61B2017/00398
A A61 A61B2017/00411
A A61 A61B2017/00464
A A61 A61B2017/00473
A A61 A61B2017/00725
A A61 A61B2017/00734
A A61 A61B2017/07257
A A61 A61B2017/07271
A A61 A61B2017/07285
A A61 A61B2017/2903
A A61 A61B2017/2904
A A61 A61B2017/320032
A A61 A61B2090/064
A A61 A61B2090/0803
A A61 A61B2090/0811
A A61 A61B2217/007
A A61 A61B2562/0261

Field of Art

Surgical instrumentation, specifically electromechanical handheld surgical devices with advanced control systems for tissue manipulation and clamping, requiring expertise in mechanical engineering, biomedical engineering, and surgical device design

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or surgical device designer with advanced knowledge of electromechanical systems, control algorithms, sensor integration, and surgical instrument design, typically holding a Master's or PhD in engineering with 3-5 years of specialized experience in medical device development

Obviousness Rationale

A PHOSITA would recognize that the PTD's real-time strain feedback and adaptive motor control represent predictable engineering improvements to the source patent's surgical device control system. The disclosed variations leverage standard control engineering techniques to enhance surgical performance by dynamically adjusting motor parameters based on measured system states. These modifications represent incremental advancements that would be obvious to a skilled practitioner seeking to optimize surgical instrument performance and reduce tissue trauma.

Obvious Combinations & Variations

Source Patent Element
Controller configured to control motor and measure strain values
PTD Variation
Integrated strain sensor with real-time motor speed adjustment based on measured strain
Obviousness Reasoning
Predictable application of known control system optimization techniques, representing a routine design enhancement for improving surgical instrument precision
Source Patent Element
Adapter assembly with basic configuration capabilities
PTD Variation
Enhanced adapter assembly with built-in sensor to detect reload type and automatically configure motor parameters
Obviousness Reasoning
Obvious extension of existing control system design using standard sensor integration and adaptive configuration techniques
Source Patent Element
Basic motor control for anvil assembly movement
PTD Variation
Dynamic clamping force control algorithm that adjusts motor speed and torque based on tissue impedance measurements
Obviousness Reasoning
Predictable application of feedback control principles to surgical instrument design, representing a logical optimization of existing control strategies
Source Patent Element
Surgical device with motor-driven clamping mechanism
PTD Variation
Advanced system with real-time tissue trauma reduction through adaptive motor control
Obviousness Reasoning
Obvious implementation of known control engineering principles to improve surgical instrument safety and performance
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857194 and the disclosed technical variations, a person having ordinary skill in the art would find the claimed innovations of the present publication to be obvious and anticipated. The incremental improvements in strain sensing, adaptive motor control, and dynamic tissue interaction represent predictable engineering solutions that would be readily conceived by a skilled practitioner seeking to optimize surgical instrument performance.

Original Patent Information

Patent NumberUS 11,857,194
TitleHandheld electromechanical surgical system
Assignee(s)Covidien LP