Surgical Device Actuator Interface for Robotic Arms

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Solution Overview

Problem

Traditional hand-held surgical devices are not easily adaptable to interface with robotic surgical systems, limiting their operational efficiency in minimally invasive surgeries.

Innovation Solution

Design of surgical devices with actuators that interface with end effectors of robotic surgical arms, allowing actuation by the robotic system and retention mechanisms to maintain stability during operations, enabling various surgical functions such as linear and rotational movements, fastener deployment, and suturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional hand-held surgical devices are used, then ease of operation is maintained, but adaptability to robotic surgical systems deteriorates

Engineering Contradiction:
Improveadaptability to robotic surgical systemsVSAvoidease of operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The surgical device is designed with dual functionality: it can be operated manually like traditional hand-held devices while also being compatible with robotic surgical systems through the actuator interface. The housing includes both manual operation capabilities and robotic interface features, allowing the same device to serve multiple operational modes without requiring separate specialized tools.

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

Solution Approach 2:

An actuator is introduced as an intermediary component that bridges between the robotic surgical system and the surgical device. The actuator interfaces with the robotic arm's end effector and transmits actuation forces to the surgical device, enabling robotic control while maintaining compatibility with the surgical device's operational requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If surgical devices are integrated with robotic surgical systems, then productivity and precision are improved, but device complexity increases

Engineering Contradiction:
Improveoperational efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The surgical device is divided into distinct functional modules: a housing containing surgical components, a separate actuator for robotic interface, and a retainer for positional control. This segmentation allows each component to be optimized independently and simplifies the integration process with robotic systems, reducing overall system complexity while maintaining operational efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The actuator serves multiple functions: it acts as the interface with the robotic end effector, provides actuation forces for surgical operations, and can be retained by the robotic system for positional control. This multi-functionality reduces the need for additional specialized components, thereby improving productivity without proportionally increasing complexity.

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

3Adaptability or versatility

If actuators are added to interface with robotic systems, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improveinterface capability with robotic systemsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The actuator is integrated with the surgical device housing rather than being a completely separate component. The actuator is supported by the housing and merged with the retainer mechanism, combining multiple functions into a unified structure. This merging reduces the number of discrete parts and simplifies the overall device architecture while maintaining full interface capability with robotic systems.

Inventive Principle:
Principle #5Merging (Combining)

4Stability of the object's composition

If retainers are used to hold surgical devices stationary, then stability is improved, but device complexity increases

Engineering Contradiction:
Improvestability during actuationVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The retainer is combined with the actuator assembly rather than being a separate mounting component. The retainer is supported by the housing and integrated into the actuator structure, allowing it to perform dual functions: maintaining positional stability during actuation and serving as part of the robotic interface mechanism. This integration minimizes additional complexity while ensuring stability.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11045175B2Surgical device for use with robotic surgical systems
Publication Date: 2021.06.29 CR BARD INC
  • US11045175B2 patent drawing
  • US11045175B2 patent drawing
  • US11045175B2 patent drawing

AI summary

Surgical devices for use with robotic surgical systems and their methods of use are described. In some embodiments, the surgical device may include an actuator that interfaces with an end effector of an arm of a robotic surgical system. An output from the end effector may actuate the actuator to perform an operation of the surgical device. In some embodiments, the surgical device may include a retainer that retains at least a portion of the surgical device on a distal portion of the arm of the robotic surgical system during actuation. In other embodiments, the surgical device may include a portion that is engaged by a second robotic surgical arm to hold at least a portion of the surgical device stationary relative to the robotic surgical arm engaged with the actuator of the surgical device.