Surgical Battery Pack Voltage Polling for Instrument Compatibility

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Solution Overview

Problem

Current surgical staplers lack an efficient and interchangeable shaft assembly system that allows for versatile surgical procedures, including articulation and precise control of end effectors, which limits their adaptability and usability in various surgical settings.

Innovation Solution

A motor-driven surgical instrument with an interchangeable shaft assembly and handle system that includes a closure drive system, firing drive system, and articulation joint, enabling the end effector to be articulated and controlled for precise tissue manipulation and stapling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If surgical staplers use a fixed shaft assembly design, then the device structure is simpler, but the adaptability to different surgical procedures is reduced

Engineering Contradiction:
Improveadaptability to different surgical proceduresVSAvoidshaft assembly structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The shaft assembly is divided into modular components including a handle assembly, a shaft, and an end effector that can be independently configured. The end effector can be exchanged or adjusted to perform different surgical functions while using the same handle and shaft structure, enabling versatility without proportionally increasing overall system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handle assembly and shaft are designed as universal components that can support multiple end effector types and configurations. The articulation joint and drive systems are configured to work with various end effector designs, allowing a single stapler platform to perform multiple surgical procedures including stapling, cutting, and tissue manipulation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If surgical staplers lack articulation joints, then the device structure is simpler, but the precision of end effector positioning is reduced

Engineering Contradiction:
Improveend effector positioning precisionVSAvoidarticulation joint structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The articulation joint is designed as a dynamic component that allows the end effector to be articulated relative to the longitudinal axis of the shaft. The joint can be selectively engaged or disengaged, and the end effector can be positioned at various angles to access difficult surgical sites while maintaining precise control through the drive systems.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The articulation joint acts as an intermediary mechanism between the straight shaft and the end effector, enabling angular adjustment without compromising the structural integrity of the shaft or the control precision of the end effector. The joint transmits drive forces while accommodating angular deviations.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Loss of time

If surgical staplers use traditional open surgical devices, then the procedure is more straightforward, but the post-operative recovery time is longer

Engineering Contradiction:
Improvepost-operative recovery timeVSAvoidsurgical procedure complexity
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

The endoscopic surgical instrument is designed to be inserted through a trocar cannula, with the shaft and end effector nested within the trocar structure. This allows access to internal surgical sites through small incisions rather than requiring large open incisions, thereby reducing trauma and accelerating post-operative recovery while maintaining surgical capability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS11839377B2Surgical instrument battery pack with voltage polling
Publication Date: 2023.12.12 CILAG GMBH INTERNATIONAL
  • US11839377B2 patent drawing
  • US11839377B2 patent drawing
  • US11839377B2 patent drawing

AI summary

A method of operating a medical device comprises electrically connecting a power device to the medical device. The method further comprises sensing at least one characteristic of one of the medical device with the power device. The method further comprises adjusting or maintaining one or more characteristics of an electrical connection feature the power device according to the at least one observed characteristic such that the electrical connection features of the power device and medical device are operationally compatible, and operating the power device according to an operational profile associated with the medical device.