Surgical Stapling Control for Malformed Staple Feedback Adjustment
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Solution Overview
Problem
Surgical stapling instruments face challenges in adjusting staple parameters and cutting forces in real-time based on sensed conditions, leading to inefficiencies and potential malformation of staples during surgical procedures.
Innovation Solution
A method is introduced where a control circuit in the surgical stapling instrument determines stroke lengths and adjusts staple parameters, including detecting malformed staples and controlling torque applied to a cutting member based on sensor output signals, to ensure precise staple formation and tissue handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If real-time sensing and adjustment of staple parameters is implemented, then manufacturing precision of staples is improved, but device complexity increases
Solution Approach 1:
The control circuit receives sensor output signals that provide feedback on staple formation conditions and tissue characteristics. Based on this feedback, the control circuit dynamically adjusts staple parameters (such as stroke length, firing force, and timing) to optimize staple formation precision in real-time during the surgical procedure.
Solution Approach 2:
The system transitions from static, pre-programmed staple parameters to dynamic, real-time adjustment of staple formation parameters. The control circuit continuously modifies stroke length, firing force, and timing based on sensed conditions, enabling adaptive optimization of staple quality throughout the procedure.
2Productivity
If dynamic adjustment of cutting forces is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The control circuit receives real-time sensor signals regarding tissue characteristics and cutting progress. Based on this feedback, the control circuit dynamically adjusts cutting forces and stroke parameters to optimize cutting efficiency and tissue separation while minimizing procedural time.
Solution Approach 2:
The system dynamically changes multiple parameters including cutting stroke length, firing force, and timing based on sensed tissue conditions. This multi-parameter adjustment enables optimized cutting performance across different tissue types and procedural stages, improving overall surgical efficiency.
3Manufacturing precision
If detection of malformed staples is implemented, then manufacturing precision is improved, but measurement precision requirements increase
Solution Approach 1:
The control circuit receives sensor output signals that provide feedback on staple formation quality. Based on this feedback, the system can detect malformed staples and adjust subsequent staple parameters to prevent recurrence of malformation, creating a closed-loop quality control system.
4Reliability
If real-time adjustment of staple parameters is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The control circuit continuously monitors staple formation conditions through sensor signals and makes real-time adjustments to maintain consistent staple quality. This feedback mechanism ensures reliable staple formation despite variations in tissue properties, surgeon technique, or device positioning.
Solution Approach 2:
The system dynamically adjusts multiple staple parameters including stroke length, firing force, and timing to compensate for variations in surgical conditions. This adaptive parameter modification maintains high staple formation reliability across diverse surgical scenarios.
Data Source
AI summary
A method of adjusting a staple parameter of a surgical stapling instrument is disclosed. The method includes determining, by a control circuit of the surgical stapling instrument, a first stroke length for a first staple driver of the surgical stapling instrument to drive a first row of staples of a circular stapling head assembly of the surgical stapling instrument; detecting, by the control circuit, a malformed staple in the first row of staples; adjusting, by the control circuit, the staple parameter, based on the detection of the malformed staple; and determining, by the control circuit, a second stroke length for a second staple driver of the surgical stapling instrument to drive a second row of staples of the circular stapling head assembly.