Advanced Endoscope Lumen Accessory with Flexible Shaft

Publication ID: 24-11857159_0006_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Endoscope Lumen Accessory with Flexible Shaft,” Published Technical Disclosure No. 24-11857159_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857159_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. 11,857,159.

Summary of the Inventive Concept

The present disclosure relates to an improved endoscope lumen accessory that enables access to target sites within a body through a flexible shaft with rigid and flexible sections, allowing for multiple directional access and enhanced structural support.

Background and Problem Solved

The original patent disclosed an endoscope lumen accessory with a fixed expandable guide member. However, this design limited the accessibility of target sites due to its rigid structure. The present inventive concept addresses this limitation by introducing a flexible shaft that can be bent in multiple directions, providing greater versatility and ease of access to target sites.

Detailed Description of the Inventive Concept

The advanced endoscope lumen accessory comprises a shaft with a flexible section and a rigid section, connected to a handle at the proximal end. The flexible section is designed to be bent in multiple directions, enabling access to target sites from different angles. The rigid section provides structural support to the flexible section, ensuring stability during navigation. The accessory device can be used in conjunction with an endoscope, allowing for precise targeting and manipulation of the target site.

Novelty and Inventive Step

The new inventive concept introduces a flexible shaft with rigid and flexible sections, which is a significant departure from the original patent's fixed expandable guide member. This innovation enables multiple directional access to target sites, overcoming the limitations of the original design.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include varying the material composition or dimensions of the flexible and rigid sections, or incorporating additional features such as sensors or imaging modalities to enhance the accessory device's functionality.

Potential Commercial Applications and Market

The advanced endoscope lumen accessory has significant commercial potential in the medical device industry, particularly in the fields of gastroenterology, urology, and general surgery. The ability to access target sites from multiple angles and with enhanced structural support could lead to improved patient outcomes and reduced procedure times.

CPC Classifications

SectionClassGroup
A A61 A61B1/00137
A A61 A61B1/0014
A A61 A61B1/00097
A A61 A61B1/00098
A A61 A61B1/00101
A A61 A61B1/018

Field of Art

Medical device engineering, specifically endoscopic accessory devices for minimally invasive surgical procedures, focusing on device design for targeted medical interventions

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with expertise in endoscopic technologies, familiar with mechanical design principles, material science, and surgical instrument configurations

Obviousness Rationale

A PHOSITA would recognize that introducing flexible shaft sections to an existing endoscope accessory design represents a predictable engineering variation that enhances device maneuverability and access to target anatomical sites. The core functional elements of the original patent's expandable guide member are fundamentally preserved, with the flexible shaft providing an incremental improvement in directional control and navigation. Such modifications align with standard design optimization strategies in medical device engineering.

Obvious Combinations & Variations

Source Patent Element
Expandable guide member with fixed configuration attached to endoscope shaft
PTD Variation
Flexible shaft with rigid and flexible sections allowing multi-directional movement
Obviousness Reasoning
Known mechanical design technique of introducing articulating sections to improve device navigation, representing a predictable solution to enhance targeting capabilities
Source Patent Element
Cap configured to attach to endoscope shaft
PTD Variation
Handle connected to proximal end of flexible shaft for user control
Obviousness Reasoning
Standard design practice of providing user interface for controlling medical device positioning, utilizing well-established mechanical coupling techniques
Source Patent Element
Single-axis expandable guide member
PTD Variation
Flexible section configurable to bend in multiple directional angles
Obviousness Reasoning
Finite design solution for improving device maneuverability, representing an obvious extension of existing mechanical design principles in medical instrumentation
Source Patent Element
Endoscopic accessory for targeting medical sites
PTD Variation
Incorporation of additional features like sensors or imaging modalities
Obviousness Reasoning
Predictable technological enhancement using known integration techniques to expand device functionality within established medical device design paradigms
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed in the published technical disclosure would have been obvious to a person having ordinary skill in the art at the time of invention, as the modifications represent predictable engineering solutions that build upon the foundational design disclosed in US Patent 11857159, without introducing inventive complexity beyond the capabilities of an ordinarily skilled practitioner in medical device engineering.

Original Patent Information

Patent NumberUS 11,857,159
TitleEndoscope lumen accessory and methods of use
Assignee(s)Boston Scientific Scimed, Inc.