Endoscope Biopsy Device With Pivotable Jaws
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Solution Overview
Problem
There is a need for alternative medical devices and manufacturing methods for intracorporeal medical devices, particularly those used with endoscopes, to improve tissue removal capabilities during procedures like endoscopic mucosal resection and submucosal dissection.
Innovation Solution
The design includes a biopsy device with a pivotable pair of jaws secured to an adaptor, which can be opened and closed using an actuator handle, allowing for precise tissue cutting and removal. The device features a resilient coupler for secure attachment to the endoscope and utilizes actuator members to move the jaws between open and closed positions, enabling effective tissue manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a biopsy device is designed with pivotable jaws for tissue cutting, then tissue removal capability is improved, but device complexity increases
Solution Approach 1:
The biopsy device with pivotable jaws is nested within the endoscope structure, with the adaptor integrating multiple functions including jaw actuation and tissue capture. The actuator members are housed within the adaptor body, creating a compact nested arrangement that enables complex tissue removal functionality without proportionally increasing overall device complexity.
2Measurement precision
If an actuator mechanism is added to control jaw movement, then precision control is improved, but device complexity increases
Solution Approach 1:
The actuator mechanism replaces manual jaw manipulation with a mechanical actuation system. The actuator members convert rotational or linear motion into precise jaw opening and closing movements through the adaptor's internal mechanical linkage, providing controlled precision while maintaining a relatively simple mechanical design.
3Productivity
If the jaws are made pivotable for cutting tissue, then cutting effectiveness is improved, but ease of operation decreases
Solution Approach 1:
The pivotable jaws are designed to automatically engage and close around tissue when the actuator is activated, without requiring manual positioning or adjustment by the operator. The mechanical linkage in the adaptor self-regulates the jaw movement, providing effective cutting while simplifying the operator's task to merely activating the actuator.
Data Source
AI summary
A biopsy device adapted for use with an endoscope includes an adaptor that is adapted to be secured relative to an endoscope. The biopsy device includes a pair of jaws that are pivotably disposed relative to the adaptor. An actuator is operably coupled with the first jaw and the second jaw and extends proximally therefrom. The actuator is adapted to move the first jaw and the second jaw relative to the biopsy device housing.