Enhanced Tissue Manipulation Device for Prostatectomy

Publication ID: 24-11857174_0001_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Tissue Manipulation Device for Prostatectomy,” Published Technical Disclosure No. 24-11857174_0001_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857174_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. 11,857,174.

Summary of the Inventive Concept

An improved tissue manipulation device for prostatectomy procedures, featuring ergonomic grip, adjustable stiffness, detachable and sterilizable end effector tips, force sensors, and variable shaft diameters to enhance surgical efficiency and safety.

Background and Problem Solved

The original tissue manipulation device patent has limitations in terms of user comfort, navigation through tissue, and durability. The new inventive concept addresses these limitations by incorporating features that improve the overall surgical experience and reduce the risk of complications.

Detailed Description of the Inventive Concept

The enhanced tissue manipulation device comprises a handle portion with an ergonomic grip feature to reduce fatigue during prolonged use. The adjustment member is displaceably coupled to the proximal end of the handle portion, allowing for precise control. The securing member is coupled to the handle portion and extends along a member axis, providing a reliable and adjustable means of securing the end effector. The shaft portion features an adjustable stiffness feature, enabling the device to navigate through tissue with greater ease. The end effector is designed with a detachable and sterilizable tip, reducing the risk of infection and improving overall hygiene. A built-in sensor in the handle portion detects and alerts the user to excessive force being applied to the tissue, preventing potential damage. Additionally, the device includes a wire with a reinforced core to improve durability and reduce the risk of breakage. In some embodiments, the shaft portion has a variable diameter along its length, which can be adjusted by a control unit based on the type of tissue being manipulated.

Novelty and Inventive Step

The new claims introduce several novel features that distinguish the enhanced tissue manipulation device from the original patent. These include the ergonomic grip feature, adjustable stiffness, detachable and sterilizable end effector tips, force sensors, and variable shaft diameters. These features provide a significant improvement over the existing device, enhancing surgical efficiency, safety, and overall user experience.

Alternative Embodiments and Variations

Alternative embodiments of the enhanced tissue manipulation device could include different grip materials, adjustable stiffness mechanisms, or various end effector tip designs. The device could also be adapted for use in other surgical procedures, such as laparoscopic or endoscopic surgeries.

Potential Commercial Applications and Market

The enhanced tissue manipulation device has significant commercial potential in the medical device industry, particularly in the field of urology. The device's improved features and performance could attract a large market share, with potential customers including hospitals, clinics, and medical research institutions.

CPC Classifications

SectionClassGroup
A A61 A61B17/0218
A A61 A61B2017/00274
A A61 A61B2017/00323
A A61 A61M25/0136

Field of Art

Surgical instrumentation, specifically minimally invasive surgical devices for tissue manipulation in urological procedures, requiring advanced mechanical engineering, medical device design, and biomechanical expertise

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or surgical instrument designer with advanced degree, 3-5 years experience in medical device development, familiar with endoscopic and laparoscopic surgical technologies, knowledgeable about ergonomics and device safety considerations

Obviousness Rationale

A PHOSITA would recognize that the enhanced tissue manipulation device represents predictable incremental improvements to the existing surgical device design, utilizing known techniques in medical instrumentation to address common surgical challenges such as user fatigue, device flexibility, and safety monitoring. The variations represent logical extensions of the source patent's core mechanical principles, applying standard engineering problem-solving approaches to surgical device optimization.

Obvious Combinations & Variations

Source Patent Element
Handle portion with adjustment member and securing mechanism
PTD Variation
Ergonomic grip feature and built-in force sensing capabilities
Obviousness Reasoning
Ergonomic improvements and integrated sensors are well-known techniques in medical device design, representing predictable solutions to reduce user fatigue and enhance surgical safety
Source Patent Element
Shaft portion with end effector
PTD Variation
Adjustable stiffness and variable diameter shaft design
Obviousness Reasoning
Modifying shaft mechanical properties is a standard engineering approach for improving device performance across different tissue types, representing a finite set of known design modifications
Source Patent Element
Removable end effector configuration
PTD Variation
Detachable and sterilizable end effector tips with reinforced wire core
Obviousness Reasoning
Enhancing device sterilization and durability through modular design and material improvements are common engineering solutions in medical instrumentation
Source Patent Element
Basic tissue manipulation device structure
PTD Variation
Control unit for dynamically adjusting shaft diameter based on tissue type
Obviousness Reasoning
Adaptive device configurations using integrated control systems represent a predictable technological evolution in sophisticated medical instruments
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857174 and the comprehensive technical disclosure herein, a person having ordinary skill in the art would find the claimed variations of the tissue manipulation device obvious and anticipated, as the disclosed enhancements represent logical, predictable extensions of existing surgical instrument design principles utilizing standard engineering problem-solving methodologies.

Original Patent Information

Patent NumberUS 11,857,174
TitleTissue manipulation device
Assignee(s)LSI Solutions, Inc.