Surgical End Tool Sensing Member Position Control
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Solution Overview
Problem
Current surgical staplers lack precise control over operation progress during laparoscopic and other surgeries, which can lead to inefficiencies and inaccuracies in tissue cutting and stapling.
Innovation Solution
The development of an end tool with a jaw and a sensing member that allows for precise control of the working member's position and movement, enabling accurate stapling and cutting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a surgical stapler is used for tissue cutting and stapling, then surgical time is reduced and surgical sites are accurately sutured, but precise control over operation progress is lacking
Solution Approach 1:
The patent incorporates a sensing member that detects the position of the working member and provides feedback signals to the control unit. This feedback mechanism enables real-time monitoring of the working member's position during stapling and cutting operations, allowing for precise control of operation progress while maintaining efficient surgical procedures.
Solution Approach 2:
The patent replaces traditional mechanical position indication methods with an electronic sensing system. The sensing member detects working member position through non-contact means (such as optical or electromagnetic fields), substituting mechanical measurement systems with more precise and controllable electronic detection, thereby improving operation progress control.
2Device complexity
If the sensing member is disposed closer to the proximal portion of the end tool, then the structure is simplified, but the measurement precision of working member position may be reduced
Solution Approach 1:
The patent positions the sensing member in a specific spatial relationship with the working member, utilizing the longitudinal dimension of the end tool. By strategically placing the sensing member at a determined position along the longitudinal axis, the system achieves both structural simplicity and adequate measurement precision through optimized spatial arrangement rather than complex multi-dimensional positioning.
3Measurement precision
If the sensing member is disposed closer to the distal portion of the end tool, then the measurement precision of working member position is improved, but the device complexity increases
Solution Approach 1:
The sensing member is designed to perform multiple functions: it detects working member position, provides feedback to the control unit, and can indicate operational status. This multi-functionality reduces the need for separate components, thereby maintaining structural simplicity while achieving improved measurement precision through the distal positioning of the sensing member.
Data Source
AI summary
An end tool of a surgical instrument includes a jaw and a sensing member, wherein the jaw is configured to accommodate at least one area of a working member that is movable in one direction, and the sensing member is configured to sense information about a position of the working member.